Dust collection air brake capable of preventing gate from falling off

Abstract

The utility model relates to a dust-collecting air brake capable of preventing a gate from falling off, which comprises an air brake seat and the gate, the air brake seat comprises a body, a flow channel, a positioning hole and a moving channel, the moving channel is communicated with the flow channel and the positioning hole, the gate is inserted into the moving channel of the air brake seat and can move in a reciprocating mode in the moving channel to open or block the flow channel of the air brake seat, and the body is provided with an opening. The gate comprises a gate piece, a positioning tenon and a compensation rib, the positioning tenon is formed by extending from the gate piece in the first direction, has elasticity and can be clamped into the positioning hole in the first direction, and the compensation rib is formed by protruding from the gate piece in the second direction and can abut against the inner wall of the moving channel in the second direction when the positioning tenon is clamped into the positioning hole. Therefore, the plastic deformation, caused by fatigue, of the positioning clamping tenon can be compensated through the compensation rib, the positioning clamping tenon can still be clamped into the positioning hole after being used for a long time, and the gate is prevented from falling off from the air brake seat.

Description

Technical Field

[0001] The utility model relates to an air brake, in particular to a dust collecting air brake that can prevent the gate from falling off. Background Art

[0002] The dust collecting air brake is a component for the central dust collecting system to manage the opening and closing of branch pipelines. An existing dust collecting air brake is an integrated dust collecting air brake, which includes an air brake body and a gate. The air brake body is an integrally formed structure with a flow channel formed inside. The gate is inserted into the air brake body and can move relative to the air brake body to open or block the flow channel. Among them, an elastic positioning tenon is provided on the gate, and a positioning hole is provided on the air brake body. When the flow channel is to be blocked, the positioning tenon elastically deforms and disengages from the positioning hole, so that the gate can move relative to the air brake body; after the flow channel is opened, the positioning tenon resumes its original shape and snaps into the positioning hole to prevent the gate from falling off the air brake body.

[0003] However, when the gate blocks the flow channel, the positioning tenon will be squeezed inside the air brake body, resulting in possible plastic deformation of the positioning tenon due to fatigue after long-term use, so that it cannot be accurately snapped into the positioning hole, causing the gate to possibly fall off the air brake body. Summary of the Utility Model

[0004] In order to solve the above problems, the purpose of the utility model is to provide a dust collecting air brake that can prevent the gate from falling off, which compensates for the plastic deformation of the positioning tenon caused by fatigue through a compensation rib, so that the positioning tenon can still be accurately snapped into the positioning hole after long-term use.

[0005] The dust collecting air brake that can prevent the gate from falling off proposed by the utility model to solve the technical problems includes:

[0006] An air brake seat, which includes a body, a flow channel, at least one positioning hole, and a moving channel. The flow channel and the moving channel are formed inside the body. The positioning hole is provided on the body, and the moving channel is connected to the flow channel and the positioning hole; and

[0007] A gate, which is inserted into the moving channel of the air brake seat and can reciprocate in the moving channel to open or block the flow channel of the air brake seat. The gate includes

[0008] A gate plate;

[0009] At least one positioning tenon, which extends from the gate plate along a first direction, has elasticity, and can be snapped into the positioning hole along the first direction; and

[0010] At least one compensating rib, which protrudes from the door piece along a second direction opposite to the first direction, and the compensating rib can abut against the inner wall of the moving channel along the second direction when the positioning tenon is inserted into the positioning hole, so as to push the positioning tenon towards the positioning hole.

[0011] The improvement in the efficacy achievable by the technical means of the present utility model lies in that: through the compensating rib protruding in the opposite direction to the positioning tenon of the present utility model, when the positioning tenon is inserted into the positioning hole of the air damper seat along the first direction, the compensating rib abuts against the inner wall of the moving channel along the second direction opposite to the first direction, so that the plastic deformation of the positioning tenon can be compensated by the protruding distance of the compensating rib, enabling the positioning tenon to still be firmly inserted into the positioning hole after long-term use, thereby providing a dust collecting air damper that can prevent the gate from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The following drawings are only intended to illustrate and explain the present utility model schematically and do not limit the scope of the present utility model, wherein:

[0013] Figure 1 is a three-dimensional external view of a preferred embodiment of the present utility model.

[0014] Figure 2 is an exploded view of a partial section of a preferred embodiment of the present utility model.

[0015] Figure 3 is an exploded view of a preferred embodiment of the present utility model from another perspective.

[0016] Figure 4 is a three-dimensional sectional view of the air damper seat of a preferred embodiment of the present utility model.

[0017] Figure 5 is a side sectional view of the air damper seat of a preferred embodiment of the present utility model.

[0018] Figure 6 is a rear view of a preferred embodiment of the present utility model.

[0019] Figure 7 is an action diagram of opening the flow channel of a preferred embodiment of the present utility model.

[0020] Figure 8 is a front view after opening the flow channel of a preferred embodiment of the present utility model.

[0021] Figure 9 is along Figure 8 sectional view taken along the cutting line A-A.

[0022] Figure 10 is along Figure 8 sectional view taken along the cutting line B-B.

[0023] Figure 11 is the cross-sectional view along the C-C secant line of Figure 8 . Detailed implementation manners

[0024] To understand in detail the technical features and practical effects of the present utility model and to implement it according to the creative content, the following further details are described with reference to the preferred embodiments shown in the accompanying drawings:

[0025] As Figures 1 to 3 shown, a preferred embodiment of the dust collecting air damper capable of preventing the damper from falling off according to the present utility model includes an air damper seat 10 and a damper 20. Among them, the air damper seat 10 includes a flow channel 12 through which gas carrying dust and wood chips in the air can flow. The damper 20 is disposed on the air damper seat 10 and can move relative to the air damper seat 10 to open or block the flow channel 12. Thus, the dust collecting air damper can be disposed between a main flow channel and a branch flow channel of a central dust collecting system to manage the dust collecting operation.

[0026] As Figures 2 to 5 shown, the air damper seat 10 includes a body 11, the flow channel 12, at least one positioning hole 13 and a moving channel 14. In the preferred embodiment of the present utility model, the body 11 is integrally formed of plastic material. In other embodiments, the body 11 can also be made of different materials such as metal and wood through different processing methods, and is not limited by the preferred embodiment of the present utility model. The flow channel 12 and the moving channel 14 are formed inside the body 11. The positioning hole 13 is disposed on the body 11. The flow channel 12 is used for the above-mentioned gas, dust, wood chips, etc. to flow through, and the moving channel 14 is used for arranging the damper 20, and the moving channel 14 is communicated with the flow channel 12 and the positioning hole 13.

[0027] As Figure 2 and Figure 3 shown, the damper 20 includes a door piece 21, at least one positioning tenon 22 and at least one compensation rib 23. The positioning tenon 22 and the compensation rib 23 are disposed on the door piece 21. The positioning tenon 22 extends from the door piece 21 along a first direction D1, and the compensation rib 23 protrudes from the door piece 21 along a second direction D2. The second direction D2 is opposite to the first direction D1. As Figure 1 , Figures 6 to 8 shown, the damper 20 is movably inserted into the air damper seat 10. The positioning tenon 22 has elasticity and can be snapped into the positioning hole 13 after the damper 20 moves relative to the air damper seat 10, so that the damper 20 and the air damper seat 10 are relatively fixed.

[0028] As Figure 9As shown, specifically, the gate 20 is inserted into the moving channel 14. The moving channel 14 extends to the middle section of the flow channel 12. The gate 20 can reciprocate within the moving channel 14. Thus, as Figure 6 shown, it can move to the middle section of the flow channel 12 to block the flow channel 12, or leave the middle section of the flow channel 12 to open the flow channel 12.

[0029] Among them, as Figure 7 , Figure 8 and Figure 10 shown, when the gate 20 opens the flow channel 12, the positioning tenon 22 snaps into the positioning hole 13 along the first direction D1. And as Figure 10 and Figure 11 shown, when the positioning tenon 22 snaps into the positioning hole 13, the compensation rib 23 abuts against the inner wall of the moving channel 14 along the second direction D2, thereby pushing the positioning tenon 22 towards the positioning hole.

[0030] During specific use, if it is desired to block the connection between the main flow channel and the branch flow channel of the central dust collection system, the gate 20 is pushed towards the inside of the air gate seat 10. At this time, the positioning tenon 22 of the gate 20 is elastically deformed along the second direction D2 under the pressing of the body 11 of the air gate seat 10, so as to disengage from the positioning hole 13 and be squeezed by the body 11 of the air gate seat 10 within the moving channel 14. Thus, the gate 20 can move along the moving channel 14 and be completely inserted into and block the middle section of the flow channel 12, thereby closing the corresponding branch flow channel.

[0031] If it is desired to connect the aforementioned main flow channel and branch flow channel, the gate 20 is pulled outwards from the air gate seat 10. As Figure 9 shown, the gate 20 moves along the moving channel 14 and disengages from the middle section of the flow channel 12. When the positioning tenon 22 of the gate 20 moves to the positioning hole 13, as Figure 10 shown, the positioning tenon 22 resumes its original shape elastically and snaps into the positioning hole 13 again along the first direction D1, so as to relatively fix the air gate seat 10 and the gate 20 and prevent the gate 20 from falling off the air gate seat 10.

[0032] Since the gate 20 often blocks the flow channel 12, the positioning tenon 22 that has been squeezed in the moving channel 14 for a long time may undergo plastic deformation due to fatigue. Therefore, the dust collection air gate is designed with the compensation rib 23. When the positioning tenon 22 is snapped into the positioning hole 13 along the first direction D1, the compensation rib 23 abuts against the body 11 of the air gate seat 10 along the opposite second direction D2, pushing the positioning tenon 22 towards the positioning hole 13. Thus, the distance that the compensation rib 23 protrudes along the second direction D2 can be used to compensate for the plastic deformation of the positioning tenon 22. Since the plastic deformation of the positioning tenon 22 is limited within the shape range of the positioning tenon 22 and does not exceed a certain value, and the distance compensated by the compensation rib 23 is greater than the plastic deformation of the positioning tenon 22, it can ensure that the positioning tenon 22 is indeed snapped into the positioning hole 13.

[0033] For the dust collection air gate provided by the present utility model, when the positioning tenon 22 undergoes plastic deformation due to fatigue, the plastic deformation of the positioning tenon 22 can be compensated by the compensation rib 23 of the gate 20. Even after long-term use, it can still be ensured that when the gate 20 opens the flow channel 12 of the air gate seat 10, the positioning tenon 22 is indeed snapped into the positioning hole 13 to relatively fix the air gate seat 10 and the gate 20. Thus, the dust collection air gate can avoid the gate 20 falling off the air gate seat 10 due to the plastic deformation of the positioning tenon 22 without adding additional components, thereby having a longer service life.

[0034] Among them, in the preferred embodiment of the present utility model, the first direction D1 and the second direction D2 are respectively the directions facing the two surfaces of the door leaf 21, and as Figure 10 and Figure 11 shown, the moving channel 14 has a width W, the door leaf 21 of the gate 20 has a door leaf thickness T1, and the sum of the door leaf thickness T1 and the height by which the compensation rib 23 protrudes from the door leaf 21 is a gate thickness T2, and the gate thickness T2 is less than or equal to the width W of the moving channel 14 to ensure that the gate 20 can reciprocate within the moving channel 14.

[0035] Furthermore, as Figure 6 shown, when the gate 20 moves along the moving channel 14 and blocks the middle section of the flow channel 12, the compensation rib 23 is located in the flow channel 12 and is spaced from the body 11 of the air gate seat 10. Thus, when the gate 20 blocks the flow channel 12 and the positioning tenon 22 is squeezed in the moving channel 14, the compensation rib 23 no longer abuts against the body 11 of the air gate seat 10, so that the pressure on the positioning tenon 22 caused by extrusion will not be increased, and it can be avoided that the design of the compensation rib 23 accelerates the plastic deformation of the positioning tenon 22.

[0036] Specifically, as shown in Figure 5 and Figure 6 , the compensating rib 23 extends along the surface of the door panel 21 and is in a strip shape, and has a length L. The minimum cross-sectional area of the flow channel 12 has a diameter D. The length L of the compensating rib 23 is less than the diameter D of the minimum cross-sectional area of the flow channel 12. Thereby, it can be ensured that the compensating rib 23 is completely accommodated in the flow channel 12 and is spaced from the body 11 of the air dam seat 10.

[0037] Furthermore, as shown in Figure 8 and Figure 9 , when the positioning tenon 22 is inserted into the positioning hole 13, the gate 20 is completely disengaged from the flow channel 12. By appropriately designing the position of the positioning hole 13, the position of the positioning tenon 22 on the door panel 21, and the size of the gate 20, when it is relatively fixed to the air dam seat 10, the gate 20 can be completely disengaged from the flow channel 12, avoiding the gas passing through the flow channel 12 being disturbed and disordered by the gate 20, thereby reducing the probability of dust, wood chips, etc. entrained by the gas falling into the interior of the air dam seat 10, so as to facilitate maintaining the cleanliness of the interior of the air dam seat 10.

[0038] Even further, as shown in Figure 3 , Figure 8 and Figure 11 , the compensating rib 23 and the positioning tenon 22 are located at the same height position on the door panel 21. Thereby, when the compensating rib 23 abuts against the inner wall of the moving channel 14, it can surely push the positioning tenon 22 along the first direction D1, ensuring that the positioning tenon 22 accurately engages into the positioning hole 13 along the first direction D1, and the compensating effect of the compensating rib 23 will not be skewed to other directions.

[0039] Preferably, as shown in Figure 2 , Figure 3 and Figure 11 , the air dam seat 10 includes two of the positioning holes 13, the gate 20 includes two of the positioning tenons 22 and several of the compensating ribs 23. The two positioning holes 13 are respectively close to the opposite sides of the air dam seat 10, and the two positioning tenons 22 are respectively located on the opposite sides of the door panel 21 and can respectively engage into the two positioning holes 13. The positioning stability can be improved by the two positioning holes 13 and the two positioning tenons 22.

[0040] As shown in Figure 2 , Figure 3 and Figure 11As shown, the plurality of compensation ribs 23 are arranged at equal intervals between the opposite sides of the door panel 21. Thus, the plurality of compensation ribs 23 can evenly provide the compensation effect for the two positioning tenons 22, and make the gate 20 less likely to deflect. In addition, when the gate 20 reciprocates in the moving channel 14, the frictional force generated between the plurality of compensation ribs 23 and the body 11 of the air brake seat 10 is evenly distributed, which can also prevent the gate 20 from skewing during the moving process.

[0041] In a preferred embodiment of the present utility model, the gate 20 includes the two positioning tenons 22 and the plurality of compensation ribs 23, and each compensation rib 23 extends along the direction of the moving channel 14 on the surface of the door panel 21 and is in a long strip shape. In other embodiments, the number and shape of the compensation ribs 23 are not limited by the preferred embodiment of the present utility model. As long as the compensation ribs 23 protrude from the door panel 21 along the second direction D2, and can abut against the body 11 of the air brake seat 10 along the opposite second direction D2 when the positioning tenons 22 are inserted into the positioning holes 13 along the first direction D1, the effect of compensating for the plastic deformation of the positioning tenons 22 of the present utility model can be achieved.

[0042] More preferably, as Figure 4 , Figure 5 and Figure 9 shown, the body 11 of the air brake seat 10 includes an air inlet pipe 15 and an air outlet pipe 16. The air inlet pipe 15 and the air outlet pipe 16 are arranged coaxially. The flow channel 12 is surrounded by the air inlet pipe 15 and the air outlet pipe 16. The air inlet pipe 15 includes an annular edge 17. The annular edge 17 protrudes from the inner wall of the air inlet pipe 15 and is located at one end of the air inlet pipe 15 close to the air outlet pipe 16. By the inwardly protruding annular edge 17, the cross-sectional area of the flow channel 12 at the position of the air inlet pipe 15 close to the air outlet pipe 16 can be reduced. When the gas in the flow channel 12 flows from the air inlet pipe 15 towards the air outlet pipe 16, it can have a faster flow rate to drive dust and wood chips, thereby preventing dust and wood chips from falling into the moving channel 14 and affecting the operation of the gate 20.

[0043] More preferably, the annular edge 17 tapers towards the air outlet pipe 16. Through the tapered structure, the gas in the flow channel 12 can be smoothly accelerated in flow rate and is less likely to be disturbed by the annular edge 17. Moreover, it can also prevent the annular edge 17 from blocking the dust and wood chips driven by the gas, and can more effectively prevent dust and wood chips from falling into the air inlet pipe 15. Thus, the cleaning cycle of the air brake seat 10 can be extended, and the maintenance cost of the dust collecting air brake can be reduced.

[0044] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art, without departing from the scope of the technical solution of the present utility model, can make some changes or modifications to the above-disclosed technical content to obtain equivalent embodiments with equivalent changes. However, as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A dust collecting air damper capable of preventing the gate from falling off, characterized in that: It contains: A damper seat, comprising a body, a flow channel, at least one positioning hole, and a moving channel, wherein the flow channel and the moving channel are formed in the body, the positioning hole is provided on the body, and the moving channel is connected with the flow channel and the positioning hole; and A gate is inserted into the moving channel of the wind gate seat and can move back and forth in the moving channel to open or block the flow channel of the wind gate seat. The gate includes One door piece; At least one positioning tenon, which extends from the door sheet along a first direction, has elasticity, and can be inserted into the positioning hole along the first direction; and At least one compensation rib is protruded from the door panel along a second direction opposite to the first direction. When the positioning tenon is inserted into the positioning hole, the compensation rib can abut against the inner wall of the movable channel along the second direction, thereby pushing the positioning tenon toward the positioning hole.

2. The dust collecting air damper capable of preventing the gate from falling off according to claim 1, characterized in that: When the gate blocks the flow channel, the compensation rib is located in the flow channel and is spaced apart from the body of the damper seat.

3. The dust collecting air damper capable of preventing the gate from falling off according to claim 1, characterized in that: When the positioning tenon is inserted into the positioning hole, the gate is completely separated from the flow channel.

4. The dust collecting air damper capable of preventing the gate from falling off according to any one of claims 1 to 3, characterized in that: The compensation rib and the positioning tenon are arranged at the same height position of the door sheet.

5. The dust collecting air damper capable of preventing the gate from falling off according to claim 4, characterized in that: The wind damper seat includes two positioning holes, and the gate includes several compensation ribs and two positioning tenons. The two positioning tenons are respectively located on both sides of the door sheet and can be respectively inserted into the two positioning holes. Several compensation ribs are evenly spaced and arranged between the two sides of the door sheet.

6. The dust collecting air damper capable of preventing the gate from falling off according to any one of claims 1 to 3, characterized in that: The body of the damper seat is provided with an air inlet pipe and an air outlet pipe, the flow channel is surrounded by the air inlet pipe and the air outlet pipe, the air inlet pipe includes an annular edge, the annular edge is protruded on the inner circumferential wall of the air inlet pipe and is located at one end of the air inlet pipe close to the air outlet pipe.

7. The dust collecting air damper capable of preventing the gate from falling off according to claim 6, characterized in that: The annular edge gradually shrinks toward the air outlet pipe.

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