SAMPLING DEVICE FOR GEOLOGICAL FLUID DETECTION

Abstract

The invention provides a sampling device for geological fluid detection, relates to the technical field of fluid detection. The sampling device comprises a support frame, the support frame is of an L-shaped structure, and a second support plate is arranged above the support frame; the protection cover is mounted at the corner of the bottom of the support frame. The water fixing cone is clamped above the support frame; the locking inclined block is mounted at the upper part; and the detector is provided with a water inlet pipe. Fluid at different depths is detected through cooperation of the mounting sleeve and the lifting frame, a fluid drainage tube is wound through the winding wheel, the mounting sleeve is driven by the lifting frame to adjust the position through the arrangement of the gear and the rack, the fluid is sampled through the sampling test tube.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

The application claims priority to Chinese patent application No. 2022105254687, filed on May 16, 2022, the entire contents of which are incorporated herein by reference.

TECHNICAL FIELD

The present invention pertains to the field of fluid detection technology, and more specifically, relates to a sampling device for geological fluid detection.

BACKGROUND

Fluids include geological fluids, and geological fluids refer to rainwater and naturally formed fluids. In order to use and observe fluids, the geological fluid detection is required, and a sampling device will be used in the geological fluid detection, and a detection device will be also used to facilitate the fluid detection.

In the detection of fluids at different depths, the detection head of the detection device needs to be controlled to lift, and since the detection device needs to detect the depth, the relatively long drainage tube will be arranged, and the drainage tube will become loose during the lifting of the detection device, thus affecting the use of the drainage tube, and the storage of the drainage tube and the adjustment of the detection position need to be operated separately, which not only makes the structure of the detection device complex, but also makes the operation of the detection device troublesome; in the process of fluid detection, a sampling device needs to be arranged for separate operation, which not only increases the labor force, but also increases the overall cost and weight, causing the problem of inconvenience in carrying the whole, and different test tubes are used for fluid sampling at different depths, which has the problem of inconvenience in switching test tubes and also affects the carrying of test tubes.

SUMMARY

In order to solve the above technical problems, the present invention provides a sampling device for geological fluid detection to solve the problem that the drainage tube will become loose during the lifting of the detection device, the storage of the drainage tube and the adjustment of the detection position need to be operated separately, the sampling device is operated separately, causing the inconvenience of overall carrying and the test tube switching.

The purpose and efficacy of the sampling device for geological fluid detection of the present invention is achieved by the following specific technical means:

A sampling device for geological fluid detection, comprising a support frame;

The support frame is of an L-shaped structure, and a second support plate is arranged above the support frame;

A protective cover, the protection cover is mounted at the corner of the bottom of the support frame;

Fixing cones, the water fixing cones are clamped above the support frame; a locking inclined block, the locking inclined block is mounted at the upper part;

A detector, the detector is provided with a water inlet pipe, the detector is clamped to the inside of the second support plate of the support frame;

A mounting sleeve, the mounting sleeve is clamped to the bottom of the support frame, a hose is mounted between the water inlet pipe of the detector and the mounting sleeve, a test strip is mounted above the detector; a positioning seat, the positioning seat is bolted to the bottom of the support frame;

A drive mechanism, the drive mechanism is mounted on the outside of the support frame;

A loading tray, the loading tray is mounted on the outside of the support frame; a sampling test tube, the sampling test tube is clamped to the inside of the loading tray.

Preferably, the support frame comprises:

• • a support block, the support block is arranged above the support frame, and the support block is provided with two mounting holes;
  • A threaded telescopic tube, the threaded telescopic tube is arranged above the support frame, the support frame is provided with two insertion holes communicated with the threaded telescopic tube, and the insertion holes in the support frame fit into the fixing cone;
  • A first support plate, the first support plate is of an L-shaped structure, the first support plate is on the outside of the support frame, the first support plate is provided with a positioning hole, and the positioning hole is of a rectangular structure.

Preferably, there are two fixing cones in total with a connecting plate between the two fixing cones, and the fixing cones are clamped to the inside of the threaded telescopic tube.

Preferably, the locking inclined block comprises:

• • sliding rods, the sliding rods are on the outside of the locking inclined block, there are two sliding rods, a second support spring is sleeved on the outside of the sliding rod, and a friction block of circular structure is arranged above the locking inclined block.

Preferably, the mounting sleeve has two locking clasps on the outside, and the locking clasp of the mounting sleeve has a breakout block on the outside.

Preferably, the positioning seat comprises:

• • a first positioning block, the first positioning block is of a rectangular structure, a mounting slot of the rectangular structure is mounted at the bottom of the support frame, the first positioning block is clamped in the mounting slot of the support frame, and the first positioning block is provided with a threaded slot.

Preferably, the drive mechanism comprises:

• • a winding wheel, a bevel gear disk is mounted on the outside of the winding wheel, and the winding wheel is mounted on the outside of the support frame;
  • a first rotation shaft, a first bevel gear is respectively mounted at both ends of the first rotation shaft, and the first bevel gear at the upper end engages with the bevel gear disk;
  • a second rotation shaft, a second bevel gear is mounted at the end of the second rotation shaft, the second bevel gear engages with the first bevel gear, and a toggle gear is mounted on the outside of the second rotation shaft;
  • a lifting frame, a rack is mounted on the outside of the lifting frame, and the rack engages with the toggle gear.

Preferably, the protective cover is provided with a sliding hole, the first rotation shaft is inserted in the sliding hole of the protective cover, an anti-loosening plate is on the outside of the protective cover, the anti-loosening plate is of a rectangular structure, the support frame is provided with two vertical positioning slots at the bottom, the protective cover is clamped in the positioning slots of the support frame, and a first support spring is sleeved on the outside of the first rotation shaft.

Preferably, the lifting frame comprises:

• • a mounting block, the mounting sleeve is provided with an annular groove, the mounting block is clamped in the annular groove of the mounting sleeve, the mounting block has a mounting groove on the inside, and an inclined surface on the outside.

Preferably, the loading tray is provided with four mounting holes distributed in a cross shape, the sampling test tube is clamped in the mounting holes of the loading tray, and the detector has a bent neck on the outside.

Preferably, the loading tray comprises:

• • a second positioning block, the second positioning block is at the bottom of the loading tray, the second positioning block is of a rectangular structure, and the second positioning block is clamped in a positioning hole of the first support plate;
  • a third positioning block, the third positioning block is of a cylindrical structure, and the third positioning block is at the bottom of the second positioning block (901).

Compared with the prior art, the present invention has the following beneficial effects:

• • 1. The mounting sleeve works with the lifting frame to detect the fluid at different depths, solving the problem of inconvenient detection of fluid at different depths, the fluid drainage tube of the fluid is wound through the winding wheel, solving the problem of inconvenient storage of the excessively long fluid drainage tube, the gear and the rack are arranged to solve the problem of driving the lifting frame up and down in the process of winding of the winding wheel, and the mounting sleeve is driven by the lifting frame for position adjustment.
  • 2. The sampling tube is used for the fluid sampling, a bent neck is arranged for the detector, so that the detection fluid in the detector can directly enters into the sampling tube, solving the problem of rapid sampling of fluid, the detector and test paper are used for double detection of fluid, improving the efficiency of fluid sampling, the loading tray is used to for the position switching of the sampling tube, solving the problem of inconvenience in switching the sampling tube and the problem of inconvenience in fluid carrying.
  • 3. The mounting sleeve is arranged to facilitate the installation of the drainage hose, and the locking clasp is arranged on the outside of the mounting sleeve to solve the problem of unstable installation of the drainage hose, the fixing cone is used to reinforce the whole, the locking inclined block is used to lock the downwardly moved fixing cone, the threaded telescopic tube is used to support the fixing cone elastically, solving the problem of pulling out the fixing cone with great effort, and the problem of soil cleaning on the outside of the fixing cone is solved by the through holes set in the support frame.
  • 4. The loading tray is set as elastically connected, which solves the problem of automatic reset after the position of sampling test tube is switched, and the gear is protected by the protective cover, and the protective cover is provided with the anti-loosening plate to prevent loosening.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a schematic diagram of the shaft side structure of the main body of the present invention;

FIG. 2 is a rear-view schematic diagram of the shaft side structure of FIG. 1 of the present invention;

FIG. 3 is an elevation-view schematic diagram of the shaft side structure of FIG. 1 of the present invention

FIG. 4 is a sectional schematic diagram of the shaft side structure of the support frame of the present invention;

FIG. 5 is a schematic diagram of the shaft side structure of the present invention with the support frame removed;

FIG. 6 is a right-view schematic diagram of the shaft side structure of FIG. 5 of the present invention;

FIG. 7 is a schematic diagram of the shaft side structure of FIG. 5 of the present invention with the hose removed;

FIG. 8 is a schematic diagram of the enlarged structure at A of FIG. 4 of the present invention;

FIG. 9 is a schematic diagram of the enlarged structure at B of FIG. 4 of the present invention;

FIG. 10 is a schematic diagram of the enlarged structure at C of FIG. 7 of the present invention.

EXPLANATION OF NUMBERS MARKED IN THE FIGURE

1—Support frame; 101—Support block; 102—Threaded telescopic tube; 103—First support plate; 2—Protective cover; 3—Fixing cone; 4—Locking inclined block; 401—Sliding rod; 5—Detector; 6—Mounting sleeve; 7—Positioning seat; 701—First positioning block; 8—Drive mechanism; 801—Winding wheel; 802—First rotation shaft; 803—Second rotation shaft; 804—Lifting frame; 80401—Mounting block; 9—Loading tray; 901—Second positioning block; 902—Third positioning block; 10—Sampling test tube.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The embodiments of the present invention will be further described in details in conjunction with the accompanying drawings and embodiments. The following embodiments are intended to explain the present invention, but cannot be used to limit the scope of the present invention.

As shown in the FIG. 1 to FIG. 10:

The present invention provides a sampling device for geological fluid detection, comprising a support frame 1;

The support frame 1 is of an L-shaped structure, the support frame 1 supports the whole; a second support plate is arranged above the support frame 1, and the second support plate supports and positions the detector 5; the support frame 1 comprises a support block 101, a threaded telescopic tube 102 and a first support plate 103, wherein the support block 101 is arranged above the support frame 1, the support block 101 is provided with two mounting holes, the support block 101 supports the sliding rod 401, and the mounting holes of the support block 101 position the sliding rod 401; the threaded telescopic tube 102 is arranged above the support frame 1, and the threaded telescopic tube 102 supports the fixing cone 3 upward elastically so that the fixing cone 3 is automatically reset for concealment, the support frame 1 is provided with two insertion holes communicated with the threaded telescopic tube 102, the insertion holes of the support frame 1 fit into the fixing cone 3, and when the fixing cone 3 slides in the insertion holes of the support frame 1, the insertion holes will erase the soil adhering to the outside of the fixing cone 3; the first support plate 103 is of an L-shaped structure, the first support plate 103 is on the outside of the support frame 1, the first support plate 103 is provided with a positioning hole, the positioning hole is of a rectangular structure, the positioning hole positions the second positioning block 901, and the first support plate 103 supports the loading tray 9;

A protective cover 2, the protective cover 2 is mounted at the corner of the bottom of the support frame 1, the protective cover 2 is provided with a sliding hole, the first rotation shaft 802 is inserted in the sliding hole of the protective cover 2, the first rotation shaft 802 positions the protective cover 2, the protective cover 2 protects the bevel gear between the first rotation shaft 802 and the second rotation shaft 803, an anti-loosening plate is on the outside of the protective cover 2, the anti-loosening plate is of a rectangular structure, the anti-loosening plate covers the fixing bolts of the positioning seat 7, so that the anti-loosening plate prevents the fixing bolts of the positioning seat 7 from loosening to avoid the loosening of the fixing bolts of the positioning seat 7, and the protective cover 2 slides up and down through the sliding holes, so as to facilitate the installation and removal of the fixing bolts of the positioning seat 7, the support frame 1 is provided with two vertical positioning slots at the bottom, and the protective cover 2 is clamped in the positioning slots of the support frame 1, and the positioning slots of the support frame 1 circumferentially position the protective cover 2, a first support spring is sleeved on the outside of the first rotation shaft 802, the first support spring elastically supports the protective cover 2 downward, so that the protective cover 2 stably protects the bevel gear;

Fixing cones 3, the water fixing cones 3 are clamped above the support frame 1, and there are two fixing cones 3 in total with a connecting plate between the two fixing cones 3, the two fixing cones 3 are driven to move at the same time through the connecting plate, and the fixing cones are clamped to the inside of the threaded telescopic tube 102, the threaded telescopic tube 102 will be squeezed when the fixing cone moves downwards, and the fixing cones 3 are inserted into the soft ground to reinforce the whole;

A locking inclined block 4, the locking inclined block 4 is mounted above, and the locking inclined block 4 comprises a sliding rod 401, the sliding rod 401 is on the outside of the locking inclined block 4, there are two sliding rods 401, two sliding rods 401 circumferentially position the locking inclined block 4, a second support spring is sleeved on the outside of the sliding rod 401, the second support spring elastically supports the locking inclined block 4, so that the locking inclined block 4 automatically resets; the locking inclined block 4 locks the downwardly pressed fixing cone 3, so that the fixing cone 3 is firmly inserted into the bottom surface; a friction block of circular structure is arranged above the locking inclined block 4, and the friction block facilitates pushing on the locking inclined block 4, and after pushing the locking inclined block 4, the fixing cone 3 slides upward and resets, and in the process of downward movement of the fixing cone 3, the fixing cone 3 automatically locks the connecting plate of the fixing cone 3, so as to facilitate the operation of the fixing cone 3;

A detector 5, the detector 5 is provided with a water inlet pipe, and the detector 5 is clamped to the inside of the second support plate of the support frame 1;

A mounting sleeve 6, the mounting sleeve 6 is clamped to the bottom of the support frame 1, a hose is mounted between the water inlet pipe of the detector 5 and the mounting sleeve 6, the fluid is delivered into the detector 5 for detection via the hose, a test strip is mounted above the detector 5, the fluid is detected via the test strip, the mounting sleeve 6 has two locking clasps on the outside, the locking clasps lock the bottom of the hose between the detector 5 and the mounting sleeve 6, so that the hose is firmly connected to the mounting sleeve 6, the locking clasp of the mounting sleeve 6 has a breakout block on the outside, and the locking clasp is broken by the breakout block, so that the bottom hose can be removed;

A positioning seat 7, the positioning seat 7 is bolted to the bottom of the support frame 1, the positioning seat 7 comprises a first positioning block 701, the first positioning block 701 is of a rectangular structure, a mounting slot of the rectangular structure is mounted at the bottom of the support frame 1, the first positioning block 701 is clamped in the mounting slot of the support frame 1, the mounting slot of the support frame 1 is hidden to the first positioning block 701, the first positioning block 701 circumferentially positions the positioning seat 7, the first positioning block 701 is provided with a threaded slot, and the threaded slot is used to connect the fixing bolt of the first positioning block 701;

A drive mechanism 8, the drive mechanism 8 is mounted on the outside of the support frame 1, the drive mechanism 8 consists of a winding wheel 801, a first rotation shaft 802, a second rotation shaft 803, a lifting frame 804 and a mounting block 80401 together, a bevel gear disk is mounted on the outside of the winding wheel 801, and the bevel gear disk is driven to rotate when the winding wheel 801 rotates, and the hose is wound through the winding wheel 801, the winding wheel 801 is mounted on the outside of the support frame 1, and a first bevel gear is mounted respectively at both ends of the first rotation shaft 802, and the first bevel gear at the upper end engages with the bevel gear disk, so that the first rotation shaft 802 will be driven to rotate when the winding wheel 801 rotates, and a second bevel gear is mounted at the end of the second rotation shaft 803, and the second bevel gear engages with the first bevel gear, so that the second rotation shaft 803 will be driven to rotate when the first rotation shaft 802 rotates, and a toggle gear is mounted on the outside of the second rotation shaft 803, and the toggle gear will be driven to rotate when the second rotation shaft 803 rotates, and the lifting frame 804 has a rack on the outside, and the rack engages with the toggle gear, and the lifting frame 804 will be pushed up and down when the toggle gear rotates, the mounting sleeve 6 has an annular groove, the mounting block 80401 is clamped in the annular groove of the mounting sleeve 6, the inclined surface facilitates the installation of the mounting sleeve 6, the mounting block 80401 will be driven to move when the lifting frame 8044 moves, so that the mounting sleeve 6 will be driven by the mounting block 80401 to move, and the position of mounting sleeve 6 will be adjusted;

A loading tray 9, the loading tray 9 is mounted on the outside of the support frame 1, the loading tray 9 comprises a second positioning block 901 and a third positioning block 902, the second positioning block 901 is at the bottom of the loading tray 9, the second positioning block 901 is of a rectangular structure, the second positioning block 901 positions the loading tray 9 at ninety degrees, and the second positioning block 901 is clamped in the positioning hole of the first support plate 103; the third positioning block 902 is of a cylindrical structure, the third positioning block 902 is at the bottom of the second positioning block 901, after the loading tray 9 is pulled upward, the third positioning block 902 facilitates the rotation of the loading tray 9, thus facilitating the loading tray 9 to drive the sampling test tube 10 for position switching;

A sampling test tube 10, the loading tray 9 is provided with four mounting holes distributed in a cross shape, the sampling test tube 10 is clamped in the mounting holes of the loading tray 9, the mounting holes of the loading tray 9 position the sampling test tube 10, the sampling test tube 10 stores the geological fluid after sampling, the detector 5 has a bent neck on the outside, the geological fluid in the detector 5 flows through the bent neck to the outside, and the bent neck is orthogonal to the sampling test tube 10, so that the fluid of the detector 5 enters directly into the sampling test tube 10 during the detection, thus facilitating the sampling of the fluid.

In another embodiment, the second support plate on the outside of the support frame 1 is set to be elastically connected, so that the second support plate clamps and locks the different sizes of the detector 5, the micro pump is mounted inside the detector 5, and the fluid is pumped by the micro pump.

The specific use and function of this embodiment are as follows:

In use, the fixing cone 3 is first mounted on the inside of the threaded telescopic tube 102 to complete the positioning and support of the threaded telescopic tube 102, the drive mechanism 8 is mounted on the outside of the support frame 1, and then the detector 5 is mounted on the inside of the second support plate to complete the installation of the detector 5, the sampling test tube 10 is placed on the inside of the loading tray 9, the invention is placed to the position where fluid detection is needed, and the support frame 1 supports the whole, and when the detection is performed on the soft ground, the fixing cone 3 is stepped down to reinforce the support frame 1, and when the fixing cone 3 is pulled out, the locking inclined block 4 is first pushed, and at the moment the fixing cone 3 is reset by moving upwards with the help of the threaded telescopic tube 102;

In the underground fluid detection, the test paper is first clamped on the inside of the detector 5 for double detection of the fluid through the detector (5) and the test paper, the winding wheel 801 is rotated to drive the first rotation shaft 802 and the second rotation shaft 803 to rotate, so that the second rotation shaft 803 drives the lifting frame 804 to move downward, the lifting frame 804 drives the mounting sleeve 6 for position adjustment; when the mounting sleeve 6 moves to the position to be detected, the rotation of the winding wheel 801 is stopped, and the fluid is pumped through the detector 5, and the geological fluid inside the detector 5 flows through the bent neck to the outside, and the bent neck is orthogonal to the sampling test tube 10, so that the fluid of the detector 5 enters directly into the sampling test tube 10 during the detection, thus facilitating the sampling of the fluid;

In the detection of fluids at different depths, the position of the mounting sleeve 6 is adjusted, while the position of the sampling test tube 10 is replaced, during the position replacement of the sampling test tube 10, the loading tray 9 is first pressed downward, and then the loading tray 9 is rotated for ninety degrees to switch the sampling test tube 10, the different sampling test tubes 10 are used for sampling the fluid at different depths, and the sampling test tube 10 and detector 5 work together for the better detection of the fluid;

After the fluid detection is completed, the winding wheel 801 is reversed, and at this time the winding wheel 801 winds the hose, while the lifting frame 804 drives the mounting sleeve 6 move upward for storage.

The embodiments of the present invention are given for purposes of example and description, and are not intended to be without omission or to limit the invention to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments have been selected and described to better illustrate the principles and practical applications of the invention, and various embodiments with various modifications suitable for particular uses have been designed to enable those of ordinary skill in the art to understand the invention.

Claims

1. A sampling device for geological fluid detection, comprising a support frame (1); A second support plate is arranged above the support frame (1); a protective cover (2), the protective cover (2) is mounted at the bottom of the support frame (1);Fixing cones (3), the water fixing cones (3) are mounted above the support frame (1), and there are two fixing cones (3) with a connecting plate between the two fixing cones (3);A locking inclined block (4), the locking inclined block (4) is mounted at the upper part of the support frame (1);A detector (5), the detector (5) is provided with a water inlet pipe, and the detector (5) is clamped to the inside of the second support plate of the support frame (1);A mounting sleeve (6), the mounting sleeve (6) is clamped to the bottom of the support frame (1), a fluid drainage tube is mounted between the water inlet pipe of the detector (5) and the mounting sleeve (6), the test paper is clamped to the inside of the detector (5) for double detection of the fluid through the detector (5) and the test paper;A positioning seat (7), the positioning seat (7) is bolted to the bottom of the support frame (1);A drive mechanism (8), the drive mechanism (8) consists of a winding wheel (801), a first rotation shaft (802), a second rotation shaft (803), a lifting frame (804) and a mounting block (80401) together, a bevel gear disk is mounted on the outside of the winding wheel (801), and the bevel gear disk is driven to rotate when the winding wheel (801) rotates, and the hose is wound through the winding wheel (801), the winding wheel (801) is mounted on the outside of the support frame (1), and a first bevel gear is mounted respectively at both ends of the first rotation shaft (802), and the first bevel gear at the upper end engages with the bevel gear disk, so that the first rotation shaft (802) will be driven to rotate when the winding wheel (801) rotates, and a second bevel gear is mounted at the end of the second rotation shaft (803), and the second bevel gear engages with the first bevel gear, so that the second rotation shaft (803) will be driven to rotate when the first rotation shaft (802) rotates, and a toggle gear is mounted on the outside of the second rotation shaft (803), and the toggle gear will be driven to rotate when the second rotation shaft (803) rotates, and the lifting frame (804) has a rack on the outside, and the rack engages with the toggle gear, and the lifting frame (804) will be pushed up and down when the toggle gear rotates, the mounting sleeve (6) has an annular groove, the mounting block (80401) is clamped in the annular groove of the mounting sleeve (6), the inclined surface facilitates the installation of the mounting sleeve (6), the mounting block (80401) will be driven to move when the lifting frame (8044) moves, so that the mounting sleeve (6) will be driven by the mounting block (80401) to move, and the position of mounting sleeve (6) will be adjusted;A loading tray (9), the loading tray (9) is mounted on the outside of the support frame (1); a sampling test tube (10), the sampling test tube (10) is clamped to the inside of the loading tray (9).

2. The sampling device for geological fluid detection according to claim 1, wherein the support frame (1) comprises: a support block (101), the support block (101) is arranged above the support frame (1), and the support block (101) is provided with two mounting holes;a threaded telescopic tube (102), the threaded telescopic tube (102) is arranged above the support frame (1), the support frame (1) is provided with two insertion holes communicated with the threaded telescopic tube (102), and the insertion holes in the support frame (1) fit into the fixing cone (3);a first support plate (103), the first support plate (103) is of an L-shaped structure, the first support plate (103) is on the outside of the support frame (1), and the first support plate (103) is provided with a positioning hole.

3. The sampling device for geological fluid detection according to claim 1, wherein the locking inclined block (4) comprises: sliding rods (401), the sliding rods (401) are on the outside of the locking inclined block (4), there are two sliding rods (401), a second support spring is sleeved on the outside of the sliding rod (401), and a friction block is arranged above the locking inclined block (4).

4. The sampling device for geological fluid detection according to claim 1, wherein the mounting sleeve (6) has two locking clasps on the outside, and the locking clasp of the mounting sleeve (6) has a breakout block on the outside.

5. The sampling device for geological fluid detection according to claim 1, wherein the positioning seat (7) comprises: a first positioning block (701), the first positioning block (701) is of a rectangular structure, a mounting slot is mounted at the bottom of the support frame (1), the first positioning block (701) is clamped in the mounting slot of the support frame (1), and the first positioning block (701) is provided with a threaded slot.

6. The sampling device for geological fluid detection according to claim 1, wherein a bevel gear disk is mounted on the outside of the winding wheel (801), and the winding wheel (801) is mounted on the outside of the support frame (1); A first bevel gear is respectively mounted at both ends of the first rotation shaft (802), and the first bevel gear at the upper end engages with the bevel gear disk;A second bevel gear is mounted at the end of the second rotation shaft (803), the second bevel gear engages with the first bevel gear, and a toggle gear is mounted on the outside of the second rotation shaft (803);A rack is mounted on the outside of the lifting frame (804), and the rack engages with the toggle gear.

7. The sampling device for geological fluid detection according to claim 1, wherein the protective cover (2) is provided with a sliding hole, the first rotation shaft (802) is inserted in the sliding hole of the protective cover (2), an anti-loosening plate is on the outside of the protective cover (2), the support frame (1) is provided with two vertical positioning slots at the bottom, the protective cover (2) is clamped in the positioning slots of the support frame (1), and a first support spring is sleeved on the outside of the first rotation shaft (802).

8. The sampling device for geological fluid detection according to claim 6, wherein the lifting frame (804) comprises: a mounting block (80401), the mounting sleeve (6) is provided with an annular groove, the mounting block (80401) is clamped in the annular groove of the mounting sleeve (6), the mounting block (80401) has a mounting groove on the inside, and an inclined surface on the outside.

9. The sampling device for geological fluid detection according to claim 1, wherein the loading tray (9) is provided with four mounting holes distributed in a cross shape, the sampling test tube (10) is clamped in the mounting holes of the loading tray (9), and the detector (5) has a bent neck on the outside.

10. The sampling device for geological fluid detection according to claim 1, wherein the loading tray (9) comprises: a second positioning block (901), the second positioning block (901) is at the bottom of the loading tray (9), the second positioning block (901) is of a rectangular structure, and the second positioning block (901) is clamped in a positioning hole of the first support plate (103);a third positioning block (902), the third positioning block (902) is of a cylindrical structure, and the third positioning block (902) is at the bottom of the second positioning block (901).