FIELD OF THE INVENTION
The present invention relates to a gas cylinder magazine which has a pressure valve of a small size and is capable of adjusting a pressure.
BACKGROUND OF THE INVENTION
A conventional air-pressure BB gun contains a magazine for receiving BB bullets. The magazine also contains a vaporizing space which is filled with liquid gas to generate air pressure. After the gas valve is started, the gas in the vaporizing space is released upward, and the BB bullets are pushed to a nozzle so as to be shot via a barrel.
Because the liquid gas is filled in the conventional magazine, pollution will occur. To overcome such a problem, a gas cylinder magazine is applied to replace the conventional magazine so that CO2 of the high-pressure cylinder is released to shoot the BB bullets by using a gas pressure.
A magazine of a high-pressure cylinder is disclosed in U.S. Pat. No. 7,237,543 and contains a body 50, and the body 50 includes an accommodation chamber 501 configured to receive a high-pressure cylinder 40, a pressure reducing valve 51 is accommodated in the body 50 above the accommodation chamber 501, and a piercing element 511 is accommodated in the body 50 facing the accommodation chamber 501, such that after the high-pressure cylinder 40 is forced into the accommodation chamber 501 to pierce an open end 41 of the high-pressure cylinder 40, and the high-pressure gas is released to flow through an conduit of the piercing element 511. The accommodation chamber 501 has a cap 54 covered on an opening of a bottom thereof, and the pressure reducing valve 51 has a separator 52 and a piston 521 moving between the separator 52 and the pressure reducing valve 51, wherein an air channel is defined in a center of the piston 521 and communicates with the high-pressure cylinder, such that the piercing element 511 pierces the high-pressure cylinder 40 to release the gas to flow into a second air chamber 502 of the pressure reducing valve 51 relative to the piston 521, wherein the second air chamber 502 of the separator 52 has two orifices 523 defined above the piston 521, and a press spring 522 is received in the second air chamber 502 of the separator 52 and the piston 521 so that the piston 521 is pushed by the press spring 522 to move to the second air chamber 502 and is pressed by the gas of the high-pressure cylinder 40 to pass through the air channel of the piston 521, wherein the gas accumulates in the second air chamber 502 and the piston 521 to produce an internal pressure, and the internal pressure is discharged out of the two orifices 523 upward.
The body 50 further includes a first air chamber 503 defined above the separator 52, and the pressure accumulates in the first air chamber 503 after the internal pressure is discharged out of the two orifices 523 upward. When the pressure increases to a predetermined pressure value, the press spring 522 of the second air chamber 502 urges the piston 521 to balance the pressure from the high-pressure cylinder 40 via the piercing element 511, and the piston 521 stop the conduit of the piercing element 511 to produce airtightness and to stop the pressure increasing from the high-pressure cylinder 40, hence the pressure of the first air chamber 503 maintains at the predetermined pressure value.
The first air chamber 503 of the body 50 communicates with the control valve 30 via a passing orifice, wherein the control valve 30 is communicated when the body 50 is accommodated in the handle of a BB gun, and the gas flows through the top of the body 50 to push the BB bullets to shoot via the barrel.
However, the magazine of the high-pressure cylinder of U.S. Pat. No. 7,237,543 has following defects:
- 1) The piston 521 and the press spring 522 are accommodated in the second air chamber 502 longitudinally and contact with a stop end of the piercing element 511, so when the gas flowing through the piercing element 511 from the high-pressure cylinder 40 is balanced with the pressure between the second air chamber 502 and the first air chamber 503, the pressure of the high-pressure cylinder 40 has to deduct an elasticity value of the press spring 522, thus causing imbalance of a top and a bottom of the piston 521. The downward elasticity of the press spring 522 offsets a release value of the pressure of the high-pressure cylinder 40, and after the high-pressure cylinder 40 releases the pressure repeatedly, the press spring 522 moves downward to release the pressure from the high-pressure cylinder 40 early. But the pressure is released from the high-pressure cylinder 40 greatly, so the stop end of the piercing element 511 and the piston 521 cannot be connected tightly, thus losing the gas and having insufficient pressure when shooting the BB bullets.
- 2) The piston 521 and the press spring 522 of the second air chamber 502 contacts with the stop end of the piercing element 511 longitudinally, so the internal space of the magazine 50 is occupied largely, and a length of the body 50 has to be increased to mate with a size of the piston 521 and the press spring 522, thus having an increased size and fabrication cost.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.
SUMMARY OF THE INVENTION
The primary aspect of the present invention is to provide a gas cylinder magazine by which the axis of the pressure valve is intersected with the axis of the high-pressure gas cylinder so that the pressure valve moves horizontally, and the high-pressure gas of the air gun is not pushed by the spring and the valve to control the pressure of the air gun accurately, and the elasticity of the second spring is more than the elasticity of the first spring so that the switching of the air inflation and airtightness produce exactly and quickly, thus shooting the BB bullet from the air gun at a high speed.
Another aspect of the present invention is to provide a gas cylinder magazine by which the pressure valve of the gas cylinder magazine is adjusted by the rotation element to drive the second spring to push the defining segment, and the drive valve is actuated by the defining segment to control the pressure of the intake room to reach an airtight pressure value based on the using requirements exactly, and the pressure valve is received in the gas cylinder magazine horizontally to reduce a size of the gas cylinder magazine and to adjust the pressure of the air gun.
To obtain the above aspects, a gas cylinder magazine provided by the present invention contains: a body, and the body including: an accommodation chamber, a pressure valve, and a control valve.
The accommodation chamber is defined in a lower end of the body and is configured to receive a high-pressure gas cylinder, a stabbing portion extends downward and is located above the accommodation chamber of the body, and a first conduit is defined in the body beside the stabbing portion. The stabbing portion pierces an opening of the high-pressure gas cylinder to release high-pressure gas to flow to the first channel upward.
The pressure valve is fixed in the body above the accommodation chamber, and an axis of the pressure valve is intersected with an axis of the high-pressure gas cylinder, such that the pressure valve is operated horizontally in the gas cylinder magazine, and the high-pressure gas flowing through the pressure valve is not pressed by a spring or a valve. The body further includes an air guide room defined on the pressure valve.
The control valve is located beside the air guide room and is connected with an air discharge chamber, a discharging ring and a nozzle of a top of the gas cylinder magazine. The control valve guides the high-pressure gas to the discharging ring via the air discharge chamber so that a BB bullet is shot from the nozzle.
Furthermore, a gas cylinder magazine provided by the present invention contains a body, and the body includes an accommodation chamber, a pressure valve, and a control valve.
The pressure valve has an adjustment portion above the accommodation chamber, and the pressure valve has an intake room defined beside the adjustment portion. A fixing element is locked in the intake room of the adjustment portion and has a holding space defined on a center thereof, the fixing element has a connection orifice defined in the holding space and communicating with the intake room, a distance is defined between the fixing element and the rotation element, and the rotation element has a positioning trench defined in an end thereof facing the fixing element. The intake room has a first channel communicating with the accommodation chamber downward, a drive valve screwed with a defining segment of the fixing element from the intake room via the connection orifice of the fixing element. After the drive valve and the defining segment are connected, a first spring is received in the intake room beside the drive valve, and a second spring abuts against the defining segment and is received in the positioning trench with respect to the fixing element, such that the second spring contacts with the defining segment and the positioning trench with respect to the fixing element. An air conducting trough surrounds around the fixing element, and the body further includes a second channel defined above and communicating with the air conducting trough, and the second channel is also in communication with the control valve via the air guide room.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a cross sectional view of a conventional magazine.
FIG. 2 is a perspective view showing the assembly of a gas cylinder magazine M according to a preferred embodiment of the present invention.
FIG. 3 is a cross sectional view taken along the line A-A′ of FIG. 2.
FIG. 4 is a side plan view showing the operation of a part of the gas cylinder magazine M according to the preferred embodiment of the present invention.
FIG. 5 is a cross sectional view showing the operation of a part of the gas cylinder magazine M according to the preferred embodiment of the present invention.
FIG. 6 is another cross sectional view showing the operation of a part of the gas cylinder magazine M according to the preferred embodiment of the present invention
FIG. 7 is another cross sectional view taken along the line A-A′ of FIG. 2.
FIG. 8 is also another cross sectional view sectional view showing the operation of a part of the gas cylinder magazine M.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
FIG. 2 is a perspective view showing the assembly of a gas cylinder magazine M according to a preferred embodiment of the present invention comprises: a pressure valve V having a small size and configured to exchange gas accurately, as shown in FIG. 1, the gas cylinder magazine M comprises a body 10 and is configured to mate with an air gun or other types of guns, and the body 10 includes a control valve 30 configured to conduct the gas of the air guns, the pressure valve V fixed below the control valve 30 and having a rotation element 20 which is received in an aperture of a side of the gas cylinder magazine M, wherein the rotation element has a hexagonal hole 201 defined on an outer wall thereof and configured to accommodate a rotatable drive tool.
FIG. 3 is a cross sectional view taken along the line A-A′ of FIG. 2. The body 10 further includes an accommodation chamber 101 defined in a lower end thereof and configured to receive a high-pressure gas cylinder 40, a separator 15 mounted in the body above the accommodation chamber 101 and having a stabbing portion 151 extending downward from a center of the separator 15, wherein the stabbing portion 151 is forced into the accommodation chamber 101 to pierce an opening 41 of the high-pressure gas cylinder 40 so that high-pressure gas is discharged out of a first conduit 110 of the body 10 upward from the high-pressure gas cylinder 40 via the stabbing portion 151, and the body 10 further includes a cap 13 configured to cover an outlet of a bottom of the accommodation chamber 101. The body 10 includes the pressure valve V above the separator 15, wherein an axis W of the pressure valve V is intersected with an axis L of the high-pressure gas cylinder 40, such that the pressure valve V is operated in the gas cylinder magazine M horizontally and has a lowest height ratio to the gas cylinder magazine M, and the pressure valve V has a pressure balance of two springs to obtain a switching of air inflation accurately. The pressure valve V facilitates an adjustment of intake distance outside the gas cylinder magazine M, thus adjusting a shooting force based on using requirements. The body 10 further includes an air guide room 121 defined on the pressure valve V, and the body 10 includes the control valve 30 located beside the control valve 30, wherein the control valve 30 conducts the high-pressure gas after the gas cylinder magazine M is accommodated in the air gun, and the high-pressure gas flows to a discharging ring 123 via an air discharge chamber 122 so that a BB bullet is shot from a nozzle 1021 of a top of the gas cylinder magazine M. The gas cylinder magazine M further comprises a receiving groove 102 defined below the nozzle 1021 and configured to accommodate the BB bullet, multiple push elements 14′, 14 configured to push another BB bullet toward the nozzle 1021 after the BB bullet is stricken, wherein the push elements 14 is limited in the receiving groove 102 and slides upward and downward in a track 1022 of the gas cylinder magazine M.
FIG. 4 is a side plan view showing the operation of a part of the gas cylinder magazine M according to the preferred embodiment of the present invention. FIGS. 5 and 6 are a cross sectional view showing the operation of a part of the gas cylinder magazine M according to the preferred embodiment of the present invention, wherein the pressure valve V has an adjustment portion 11 above the accommodation chamber 101, and the pressure valve V has an intake room 111 defined beside the adjustment portion 11, wherein a fixing element 22 is locked in the intake room 111 of the adjustment portion 11 and has a holding space defined on a center thereof, a diameter of the holding space of the fixing element 22 is more than a diameter of the intake room 111, and the fixing element 22 has a connection orifice defined in the holding space and communicating with the intake room 111. A distance is defined between the fixing element 22 and the rotation element 20, and the rotation element 20 has a positioning trench 202 defined in an end thereof facing the fixing element 22, wherein the intake room 111 has a first channel 110 communicating with the accommodation chamber 101 downward, a drive valve 23 screwed with a defining segment 231 of the fixing element 22 from the intake room 111 via the connection orifice of the fixing element 22, wherein after the drive valve 23 and the defining segment 231 are connected, a first spring 25 is received in the intake room 111 beside the drive valve 23, and a second spring 21 abuts against the defining segment 231 and is received in the positioning trench 202 with respect to the fixing element 22, such that the second spring 21 contacts with the defining segment 231 and the positioning trench 202 with respect to the fixing element 22, wherein an elasticity of the second spring 21 is more than an elasticity of the first spring 25 so that a pressure of the intake room 111 is small, the second spring 21 pushes the defining segment 231 to actuate the drive valve 23 to move toward and turn on the intake room 111, when the pressure of the intake room 111 increases to a predetermined value and the elasticity of the first spring 25 is more than the elasticity of the second spring 21, the defining element 231 is urged to drive the coupling element 23 to move toward the rotation element 20, thus producing air tightness. An air conducting trough 112 surrounds around the fixing element 22, and the body 10 further includes a second channel 113 defined above and communicating with the air conducting trough 112, and the second channel 113 is also in communication with the control valve 30 via the air guide room 121.
FIG. 7 is another cross sectional view taken along the line A-A′ of FIG. 2. FIG. 8 is another cross sectional view sectional view showing the operation of a part of the gas cylinder magazine M. The second channel 113 of the gas cylinder magazine M moves into the control valve 20 via the air guide room 121, wherein the body 10 further includes a threaded orifice 13 defined therein beside the air guide room 121, communicating with the air discharge chamber 122 upward, and configured to screw with the control valve 30. The control valve 30 includes a cylinder 32 screwed in the threaded orifice 13 and connected with the air guide room 121, wherein the cylinder 32 has an air orifice 321 defined on an intermediate section thereof and communicating with the air discharge chamber 122 upward, the intermediate section of the cylinder 32 is stepped and has a stepped rod 31 received therein, wherein a profile of the stepped rod 31 mates with a profile of the cylinder 32, and the stepped rod 31 has a protrusion 311, a closing segment 312, and a stop portion 313, a driving spring 33 is fitted on the stepped rod 31, abuts against the protrusion 311 and the cylinder 32, and pushes the rod 31 to move outward. The closing segment 312 is configured to limit a movement of the cylinder 32, and the stop portion 313 is pushed by the driving spring 33 to contact with and close the cylinder 32.
When the air gun is triggered, as shown in V1 of FIG. 5, the axis of the pressure valve V is intersected with the axis of the high-pressure gas cylinder 40 so that the pressure valve V moves horizontally. When the pressure of the intake room 111 is small, the second spring 21 pushes the defining segment 231 to actuate the drive valve 23 to move toward and turn on the intake room 111, and the high-pressure gas AF1 is forced by the drive valve 23 to flow into the air guide room 121 from the first channel 110 via the air conducting trough 112 and the second channel 113, thus increasing the pressure of the intake room 111. Referring to V2 of FIG. 6, when the pressure of the intake room 111 is increased to the predetermined value and the elasticity of the first spring 25 is more than the elasticity of the second spring 21, the defining element 231 is urged to drive the coupling element 23 to move toward the rotation element 20 and to stop the high-pressure gas AF2, thus inflating the gas. As illustrated in S of FIG. 8, when the gas cylinder magazine M is received in a handle of the air gun, the control valve 30 is started to drive the rod 31 to move to the air guide room 121, and the closing segment 312 is opened so that the high-pressure gas of the air guide room 121 is inflated to air discharge chamber 122 via the air orifice 321 of the cylinder 32, thus shooting the BB bullet.
Accordingly, the gas cylinder magazine M of the present invention has advantage as follows:
- 1) The axis of the pressure valve V is intersected with the axis of the high-pressure gas cylinder 40 so that the pressure valve V moves horizontally, and the high-pressure gas of the air gun is not pushed by the spring and the valve to control the pressure of the air gun accurately. Preferably, the elasticity of the second spring 21 is more than the elasticity of the first spring 25 so that the switching of the air inflation and airtightness produce exactly and quickly, thus shooting the BB bullet from the air gun at a high speed.
- 2) When inflating the gas to the air gun in various areas, temperatures and pressures, different pressures of the air gun produce. For example, when inflating the gas to the air gun at a high temperature, the pressure of the air gun increases. While inflating the gas to the air gun at a low temperature, the pressure of the air gun is insufficient. The pressure valve V of the gas cylinder magazine M is adjusted by the rotation element 20 to drive the second spring 21 to push the defining segment 231, and the drive valve 23 is actuated by the defining segment 231 to control the pressure of the intake room 111 to reach an airtight pressure value based on the using requirements exactly. Preferably, the pressure valve V is received in the gas cylinder magazine M horizontally to reduce a size of the gas cylinder magazine M and to adjust the pressure of the air gun.
While the preferred embodiments of the invention have been set forth for the purpose of disclosure, modifications of the disclosed embodiments of the invention as well as other embodiments thereof may occur to those skilled in the art. The scope of the claims should not be limited by the preferred embodiments set forth in the examples, but should be given the broadest interpretation consistent with the description as a whole.
Patent Application
20230375303
