DUST CUP WITH SELF-LOCKING ROTARY LATCH

Abstract

The invention discloses a dust cup with a self-locking rotary latch. The dust cup includes a dust cup body, a dust cup cover, rotary release blocks and a release button. The dust cup cover is positioned on the dust cup body. The dust cup body is provided with an annular rotary working groove. Two rotary release blocks arranged symmetrically are provided in the rotary working groove. The dust cup is firmly locked with the body shell, and the self-locking latch structure prevents the dust cup from detaching from the vacuum cleaner when the vacuum cleaner falls. The latch structure of the dust cup is compact, so as to be integrated into the volume of the dust cup without compromising performance, thereby keeping the dimension of the dust cup as compact as possible and saving the space of the dust cup.

Description

FIELD

The invention belongs to the field of dust cups of vacuum cleaners, in particular to a dust cup with a self-locking rotary latch.

BACKGROUND

Vacuum cleaner is a kind of cleaning equipment widely used in daily life and industrial production. The working principle of the vacuum cleaner is to use a motor to drive blades to rotate at high speed, generate negative air pressure in a sealed housing, and then suck dust through an external suction pipe.

The latch structure of the dust cup in the existing vacuum cleaner is all arranged at the outer side, which is convenient for disassembling the dust cup, but causes that the dust cup is not firmly locked, and the dust cup is easy to sway. In addition, the existing latch structure of the dust cup does not have the self-locking ability, so that the dust cup is easy to separate from the vacuum cleaner when the vacuum cleaner falls. Moreover, the existing latch structure is relatively complex and occupies a large space of the dust cup, so that the dust cup surface is covered and the dust accumulation in the dust cup is not easy to observe.

SUMMARY

The object of the present invention is to provide a dust cup with a self-locking rotary latch, wherein the dust cup is firmly locked with a body shell, and the self-locking latch structure prevents the dust cup from separating from the vacuum cleaner when the vacuum cleaner falls. Furthermore, the invention also aims to provide a compact latch structure.

In order to achieve the above object, the present invention adopts the following technical solution: a dust cup with a self-locking rotary latch, comprising: a dust cup body, a dust cup cover, rotary release blocks and a release button, wherein the dust cup cover is positioned on the dust cup body, the dust cup body is provided with an annular rotary working groove, and two rotary release blocks arranged symmetrically are provided in the rotary working groove.

More specifically, the present invention can adopt the following technical solution:

• • a dust cup with a self-locking rotary latch, comprising: a dust cup body, a dust cup cover, rotary release blocks and a release button, wherein the dust cup cover is positioned on the dust cup body; the dust cup cover is provided with a clamping groove, and a locking block on the body shell is clamped in the clamping groove; the locking block is in the shape of “T”; an end plate of the locking block abuts against the clamping groove, in particular a bottom surface thereof; an annular rotary working groove is arranged on the dust cup body, and two rotary releasing blocks arranged symmetrically are arranged in the rotary working groove; a first end of the rotary release block is connected to a first end of the other rotary release block via a tension spring; the first end of the rotary release block is also provided with a plug, and the plug passes through a side wall of the clamping groove and abuts against a connecting plate of the locking block; the release button is elastically connected to the dust cup body; a notch is provided on a side wall of the release button, and the notch is latched onto a latching plate of a second end of the rotary release block; a slope is formed on one side of the latching plate, and the bottom of the side wall of the release button abuts against the slope.

As a further description of the technical solution, the dust cup cover can be clamped on the dust cup body. The rotary release blocks can be released under the actuation of the release button. Further, the self-locking can happen without even actuation of the release button.

As a further description of the technical solution, the dust cup body is also provided with a socket, and the body shell is provided with a through hole corresponding to the socket.

As the further description of the technical solution, the socket is trapezoidal in shape, and the length of the socket gradually decreases from the surface of the dust cup body to the end thereof.

As a further description of the technical solution, a lower surface of the clamping groove is a slope.

As a further description of the technical solution, a protrusion is disposed on one side of the release button, and a sliding groove corresponding to the protrusion is disposed on the dust cup body.

As a further description of the technical solution, the release button is elastically connected to the dust cup body via a spring.

As a further description of the technical solution, the body shell can be used for a canister, handheld or stick type vacuum cleaner.

In sum, owing to the technical solutions above, beneficial effect of the present invention is:

1. In the present invention, when disassembling the dust cup, by pressing the release button for example, the bottom of the side wall of the release button presses the slope of the rotary release block, so that the rotary release block rotates and retreats around the axis of the dust cup under the actuation of the release button, a tension spring at the first end of the rotary release block is driven to be pulled apart, that is, the first ends of the two rotary release blocks are far away from each other, the plug at the first end of the rotary release block moves backward and is separated from the side wall of the clamping groove, the locking of the locking block on the body shell is released, and the locking block can be separated from the clamping groove. Conversely, when installing the dust cup, after the locking block on the body shell is clamped into the clamping groove, releasing the release button causes the two rotary release blocks to return under the action of the tension spring, and the plug at the first end of the rotary release block passes through the side wall of the clamping groove and abuts against the connecting plate of the locking block, so as to realize the self-locking of the dust cup. Therefore, the dust cup is firmly locked with the body shell, and the self-locking latch structure prevents the dust cup from detaching from the vacuum cleaner when the vacuum cleaner falls.

2. In the present invention, the dust cup body is also provided with a socket, and the body shell is provided with a through hole corresponding to the socket. The shape of the socket is trapezoidal, and the length of the socket gradually decreases from the surface of the dust cup body to its end, which is convenient for the plugging of the dust cup body into the body shell, and avoids collision damage during the plugging process.

3. In the present invention, the latch structure of the dust cup is compact, so the latch structure can be integrated into the volume of the dust cup as much as possible without compromising performance, thereby keeping the dimension of the dust cup as compact as possible and saving the space of the dust cup. Moreover, due to the compact design of the latch structure, the surface of the dust cup is clear, so that it is easy to observe the accumulation of dust in the dust cup.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solution of the embodiment of the present invention, the accompanying drawings that need to be used in the embodiment will be briefly introduced below. It should be understood that the following accompanying drawings only show some embodiments of the present invention, so it should not be regarded as a limitation on the scope of protection. For those skilled in the art, other related drawings can also be obtained according to these drawings without inventive efforts.

FIG. 1 is a first schematic view of a disassembled structure of a dust cup with a self-locking rotary latch.

FIG. 2 is a second schematic view of a disassembled structure of a dust cup with a self-locking rotary latch.

FIG. 3 is a schematic end view of the installation of rotary release blocks in a dust cup with a self-locking rotary latch.

FIG. 4 is a schematic diagram of a rotary release block in a dust cup with a self-locking rotary latch and its release operation process.

List of reference signs: 1. Dust cup body; 11. Rotary working groove; 12. Socket; 13. Sliding groove; 14. Ridge; 15. Boss; 16. Recess; 2. Dust cup cover; 21. Clamping groove; 211. Lower surface; 3. Rotary release block; 3. Plug; 32. Latching plate; 33. Slope; 4. Release button; 41. Notch; 42. Protrusion; 5. Body shell; 51. Locking block; 511. End plate; 512. Connecting plate; 52. Through hole; 6. Spring.

DETAILED DESCRIPTION

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without inventive efforts fall within the protection scope of the present invention.

Referring to FIGS. 1 to 4, the present invention provides a technical solution: a dust cup with a self-locking rotary latch, comprising: a dust cup body 1, a dust cup cover 2, rotary release blocks 3 and a release button 4. The dust cup cover 2 is provided with a clamping member, so that it can cooperate with a complementary clamping member on a body shell 5. The dust cup cover 2 is positioned on the dust cup body 1 by clamping for example. Specifically, the dust cup cover 2 can be provided with a clamping groove 21, and a locking block 51 of the body shell 5 is clamped into the clamping groove 21. The locking block 51 is in the shape of “T”. An end plate 511 of the locking block 51 abuts against the clamping groove 21, in particular a bottom surface thereof. The dust cup body 1 is provided with an annular rotary working groove 11, and two rotary releasing blocks 3 arranged symmetrically are arranged in the rotary working groove 11. A first end of one rotary release block 3 is connected to a first end of the other rotary release block 3 via a tension spring. The first end of the rotary release block 3 is also provided with a plug 31, and the plug 31 passes through a side wall of the clamping groove 21 and abuts against the connecting plate 512 of the locking block 51. The release button 4 is elastically connected to the dust cup body 1. A notch 41 is formed on a side wall of the release button 4, and the notch 41 is latched onto the latching plate 32 of a second end of the rotary release block 3. A slope 33 is formed on one side of the latching plate 32, and the bottom of the side wall of the release button 4 abuts against the slope 33. The release button 4 is elastically connected to the dust cup body 1 via a spring 6, for example.

In addition, as shown in FIG. 1 and FIG. 2, the latch structure including the rotary release blocks 3 and the release button 4 is located at the end of the dust cup body 1, and is designed to a slim structure along the circumferential direction of the end of the dust cup body 1, so as to surround the dust cup body 1 at the end. This slim structure allows the locking and releasing mechanism of the dust cup to be compact without loss of performance.

More specifically, as shown in FIG. 1 and FIG. 3, the end of the dust cup body 1 is provided with an annular ridge 14 and a boss 15, and the rotary working groove 11 is formed between the ridge 14 and the boss 15. The rotary working groove 11 provides a space for accommodating the rotary release blocks 3, thereby avoiding the impact on the performance of the cyclone in the dust cup and the volume of the dust managing system. In particular, the ridge 14 is shaped and dimensioned to minimize the impact on the dust cup volume.

The dust cup body 1 is also provided with a socket 12, and the body shell 5 is provided with a through hole 52 corresponding to the socket 12, so as to improve the connection effect between the dust cup body 1 and the body shell 5, and the dust cup body 1 is firmly installed to avoid shaking.

The shape of the socket 12 is trapezoidal, and the length of the socket 12 gradually decreases from the surface of the dust cup body 1 to its end, which is convenient for the plugging of the dust cup body 1 into the body shell 5, and avoids collision damage in the plugging process.

The lower surface 211 of the clamping groove 21 is a slope. The bottom of the connecting plate 512 matches the lower surface 211 of the clamping groove 21, so that when the dust cup is installed, the connecting plate 512 is not easily damaged by collision with the clamping groove 21, and the dust cup body 1 and the locking block 51 in the body shell 5 are more easily installed in place.

As shown in FIGS. 1 to 3, a boss 15 of the dust cup body 1 is formed with a recess 16 extending radially inwardly so as to provide a space for accommodating the release button 4. One side of the release button 4 is provided with a protrusion 42, and the recess 16 on the dust cup body 1 is provided with a sliding groove 13 positioned corresponding to the protrusion 42. The protrusion 42 is slidably connected in the sliding groove 13, so that when the release button 4 is pressed down, the release button 4 moves smoothly and the rotary release blocks 3 are ensured to work smoothly.

FIG. 4 shows the details of the latch structure and an illustrative release process, in which states (a) and (b) are cross-sectional end views showing the latch structure, and action (c) is a partial axial cross-sectional view showing the relevant structure of the release button 4, and action (d) is a partial cross-sectional end view showing the relevant structure of the first end 31 of the rotary release block 3. As mentioned above, the latch structure includes two rotary release blocks 3 (only one is shown in FIG. 4), which are arranged along the outer circumference of the boss 15. The release button 4 is biased in its initial position via a spring 6. Since the bottom of the side wall of the release button 4 abuts against the slope 33 of the latching plate 32 of the rotary release block 3, pushing the release button 4 (action (c) in FIG. 4) will cause the rotary release blocks 3 to be released from the first position, i.e. the locking position (a) in FIG. 4, to the second position, i.e. the releasing position (b) in FIG. 4, and releasing the release button 4 back to its initial position will cause the rotary release blocks 3 to return to the first position.

According to an embodiment of the present invention, the dust cup can be adapted to the body shells of various types of vacuum cleaners. For example, the body shell 5 can be used for a canister, handheld or stick type vacuum cleaner.

Working principle: when disassembling the dust cup, by pressing the release button 4 for example, the bottom of the side wall of the release button 4 presses the slope 33 of the rotary release block 3 (action (c) in FIG. 4), so that the rotary release block 3 rotates and retreats around the axis of the dust cup under the actuation of the release button 4, a tension spring at the first end of the rotary release block 3 is driven to be pulled apart, that is, the first ends of the two rotary release blocks 3 are far away from each other (state (b) and action (d) in FIG. 4), the plug 31 at the first end of the rotary release block 3 moves backward and is separated from the side wall of the clamping groove 21, the locking of the locking block 51 on the body shell 5 is released, and the locking block 51 can be separated from the clamping groove 21. Conversely, when installing the dust cup, after the locking block 51 on the body shell 5 is clamped into the clamping groove 21, releasing the release button 4 causes the two rotary release blocks 3 to return under the action of the tension spring, and the plug 31 at the first end of the rotary release block 31 passes through the side wall of the clamping groove 21 and abuts against the connecting plate 512 of the locking block 51, so as to realize the self-locking of the dust cup. Therefore, the dust cup is firmly locked with the body shell, and the self-locking latch structure prevents the dust cup from detaching from the vacuum cleaner when the vacuum cleaner falls. The dust cup body 1 is also provided with a socket 12, and the body shell 5 is provided with a through hole 52 corresponding to the socket 12. The shape of the socket 12 is trapezoidal, and the length of the socket 12 gradually decreases from the surface of the dust cup body 1 to its end, which is convenient for the plugging of the dust cup body 1 into the body shell 5, and avoids collision damage during the plugging process.

In addition, the latch structure of the dust cup is compact, so that the latch structure can be integrated into the volume of the dust cup as much as possible without compromising performance, thereby keeping the dimension of the dust cup as compact as possible and save the space of the dust cup. Moreover, due to the compact design of the latch structure, this makes the surface of the dust cup clear, and thus it easy to observe the accumulation of dust in the dust cup.

The above describes only preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto, anyone familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention and its inventive concepts to make equivalent replacements or changes shall be covered within the scope of protection of the present invention.

Claims

1. A dust cup with a self-locking rotary latch, characterized by comprising: a dust cup body (1), a dust cup cover (2), rotary release blocks (3) and a release button (4), wherein the dust cup cover (2) is positioned on the dust cup body (1), the dust cup body (1) is provided with an annular rotary working groove (11), and two rotary release blocks (3) arranged symmetrically are provided in the rotary working groove (11).

2. The dust cup according to claim 1, characterized in that, the rotary release blocks (3) are released under the actuation of the release button (4).

3. The dust cup according to claim 1, characterized in that, the dust cup cover (2) is provided with a clamping member so as to cooperate with a complementary clamping member on a body shell (5).

4. The dust cup according to claim 3, characterized in that, the clamping member on the dust cup cover (2) is a clamping groove (21), and the complementary clamping member on the body shell (5) is a locking block (51) capable of being clamped into the clamping groove (21).

5. The dust cup according to claim 1, characterized in that, a first end of one of the rotary release blocks (3) is connected to a first end of the other of the rotary release blocks (3) via a tension spring.

6. The dust cup according to claim 4, characterized in that, the first end of the rotary releasing block (3) is further provided with a plug (31), and the plug (31) passes through a side wall of the clamping groove (21) and is capable of abutting against a connecting plate (512) of the locking block (51).

7. The dust cup according to claim 1, characterized in that, the release button (4) is elastically connected to the dust cup body (1).

8. The dust cup according to claim 1, characterized in that, a notch (41) is formed on a side wall of the release button (4), and the notch (41) is latched onto a latching plate (32) of a second end of the rotary release blocks (3).

9. The dust cup according to claim 8, characterized in that, a slope (33) is formed on one side of the latching plate (32), and the bottom of the side wall of the release button (4) abuts against the slope (33).

10. The dust cup according to claim 4 or 6, characterized in that, the locking block (51) is in the shape of “T”.

11. The dust cup according to claim 4 or 6, characterized in that, an end plate (511) of the locking block (51) abuts against the clamping groove (21).

12. The dust cup according to claim 1, characterized in that, the dust cup body (1) is further provided with a socket (12), so as to match with a through hole (52) provided on the body shell (5) corresponding to the socket (12).

13. The dust cup according to claim 12, characterized in that, the socket (12) is trapezoidal in shape, and the length of the socket (12) gradually decreases from the surface of the dust cup body (1) to the end thereof.

14. The dust cup according to claim 4, characterized in that, a lower surface (211) of the clamping groove (21) is a slope.

15. The dust cup according to claim 1, characterized in that, a protrusion (42) is disposed on one side of the release button (4), and a sliding groove (13) corresponding to the protrusion (42) is disposed on the dust cup body (1).

16. The dust cup according to claim 7, characterized in that, the release button (4) is elastically connected to the dust cup body (1) via a spring (6).

17. The dust cup according to claim 1, characterized in that, the body shell (5) is used for a canister, handheld or stick type vacuum cleaner.