Gearbox exhaust device

Abstract

The gearbox exhaust device comprises a screw rod, a through hole is formed in the middle of the screw rod in a penetrating mode, a traction cylinder A is arranged on the screw rod in a threaded mode, a traction cylinder B is movably arranged outside the traction cylinder A in a sleeved mode, a top cover is connected to the top of the traction cylinder B in a threaded mode, and a waterproof breathable film A and a positioning shell A are arranged at the inner bottom end of the top cover; the bottom of the top cover is in threaded connection with a limiting ring used for abutting against and limiting the positioning shell A, so that the waterproof breathable film A is limited between the positioning shell A and the inner surface of the top cover, and a plugging assembly is arranged at the top of the screw rod. According to the utility model, not only can the plugging strength of the vent hole be adjusted according to the internal pressure of different gearboxes to better adapt to different actual conditions for use, but also the communication of the exhaust hole B can be manually adjusted according to the internal pressure of different gearboxes to increase the exhaust amount, and the exhaust efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of transmission exhaust valve technology, and in particular to a transmission exhaust device. Background Technology

[0002] The transmission vent valve is a type of transmission venting device. It is installed on the transmission to release pressure when the internal pressure of the transmission is too high, thus preventing damage to the transmission and its internal components caused by excessive internal pressure.

[0003] An existing gearbox exhaust valve includes a connecting rod, a top cap, a spring, and a rubber block. The top cap is rotatably connected to the top of the connecting rod and has an exhaust hole. The rubber block is pressed against the through hole at the top of the connecting rod. The spring is located between the top of the rubber block and the top of the inner part of the top cap. When the gas pressure inside the gearbox is too high, it is discharged from the connecting rod and squeezes the rubber block. At the same time, the spring is squeezed by the rubber block, so that there is a venting gap between the rubber block and the vent hole to facilitate exhaust.

[0004] Due to the rapid development of the automotive industry, different manufacturers use different transmissions. The gas pressure generated by the transmissions varies depending on the time of use. The aforementioned transmission exhaust valve does not have an adjustment function and cannot be matched according to the actual gas pressure inside different transmissions.

[0005] Therefore, we propose a gearbox exhaust device to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a gearbox exhaust device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A gearbox exhaust device includes a screw with a through hole in the middle, a pull cylinder A threaded on the screw, and a pull cylinder B movably sleeved on the outside of the pull cylinder A. A top cover is threaded to the top of the pull cylinder B, and a waterproof and breathable membrane A and a positioning shell A are provided at the bottom of the inner end of the top cover. A limit ring is threaded to the bottom of the top cover for abutting and limiting the positioning shell A, thereby restricting the waterproof and breathable membrane A between the positioning shell A and the inner surface of the top cover. A sealing component is provided at the top of the screw.

[0009] Preferably, the screw has a through hole extending from the top to the bottom for ventilation, a turning ring for easy rotation is fixedly fitted on the surface of the screw, and a positioning screw ring is threaded on the surface of the screw. The positioning screw ring is located above the turning ring and is used to limit the depth of the pull cylinder A threaded onto the surface of the screw.

[0010] Preferably, an anti-detachment ring A is fixedly provided on the outer surface of the traction cylinder A near the top, and an anti-detachment ring B is fixedly provided on the inner surface of the traction cylinder B near the bottom. The anti-detachment ring A and the anti-detachment ring B have the same specifications, and the traction cylinder B is sleeved on the surface of the traction cylinder A, such that the end of the traction cylinder A away from the anti-detachment ring A is downward, and the end of the traction cylinder B away from the anti-detachment ring B is upward. The anti-detachment ring A presses on the top of the anti-detachment ring B, so that the traction cylinder B is sleeved on the outside of the traction cylinder A in a vertical state and will not fall off.

[0011] Preferably, the sealing assembly includes a spring and a rubber block. The rubber block is located at the top of the screw to block the through hole. The spring is located at the top of the rubber block, and the end of the spring away from the rubber block rests against the bottom of the positioning shell A. At the same time, the downward pressing force of the spring presses the rubber block against the top of the screw.

[0012] Preferably, multiple sets of exhaust holes A are evenly opened on the surfaces of the top cover and the positioning shell A. When gas is discharged from the through hole into the pulling cylinder A and the pulling cylinder B and then into the top cover, it is discharged through the exhaust hole A.

[0013] Preferably, the surface of the traction cylinder B is fitted with a manual venting assembly, and the manual venting assembly includes a collar that is rotatably fitted on the surface of the traction cylinder B. The inner ring of the collar is provided with damping rings near the top and bottom. The surface of the traction cylinder B is provided with a matching annular groove, so that when the collar is fitted on the surface of the traction cylinder B, the damping ring is located in the annular groove and can rotate.

[0014] Preferably, the manual exhaust assembly further includes a positioning shell B positioned at the inner ring of the collar. A waterproof and breathable membrane B is provided between the outer ring of the positioning shell B and the inner ring of the collar. Exhaust holes B are provided through the surfaces of the collar, the positioning shell B, and the pulling cylinder B. The diameter of the exhaust hole B is larger than that of the exhaust hole A, which can improve the exhaust efficiency and exhaust volume.

[0015] The collar surface is fixedly provided with a positioning block, and the positioning block is locked to the traction cylinder B by a positioning bolt.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This exhaust valve device has an adjustable effect, specifically, it can adjust the sealing strength of the vent hole according to different internal pressures of the gearbox, so as to better adapt to different actual conditions.

[0018] 2. This exhaust valve device allows for easy manual adjustment of the connection of exhaust port B according to different internal pressures of the gearbox, thereby increasing the exhaust volume and improving the exhaust effect and efficiency. Attached Figure Description

[0019] Figure 1 Axial view of a gearbox exhaust device proposed in this utility model Figure 1 ;

[0020] Figure 2 Axial view of a gearbox exhaust device proposed in this utility model Figure 2 ;

[0021] Figure 3 for Figure 2 A schematic diagram showing the separation of the middle traction cylinder A and the screw;

[0022] Figure 4 for Figure 3 A schematic diagram showing the separation of the top cover and the pulling cylinder B;

[0023] Figure 5 for Figure 4 Exploded view of the internal structure of the top cover;

[0024] Figure 6 for Figure 4 Structural breakdown diagram of the middle traction cylinder A, traction cylinder B, and collar.

[0025] In the diagram: 1. Screw; 2. Positioning screw ring; 3. Rubber block; 4. Spring; 5. Pulling cylinder A; 51. Anti-detachment ring A; 6. Pulling cylinder B; 61. Anti-detachment ring B; 7. Top cover; 8. Waterproof and breathable membrane A; 9. Positioning shell A; 10. Limiting ring; 11. Collar; 111. Damping ring; 12. Positioning shell B; 13. Positioning block; 14. Waterproof and breathable membrane B. Detailed Implementation

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Reference Figure 1-6 A gearbox exhaust device includes a screw 1 with a through hole in the middle, a pull cylinder A5 threaded on the screw 1, and a pull cylinder B6 movably sleeved on the outside of the pull cylinder A5. A top cover 7 is threaded to the top of the pull cylinder B6, and a waterproof and breathable membrane A8 and a positioning shell A9 are provided at the bottom of the inner end of the top cover 7. A limit ring 10 is threaded to the bottom of the top cover 7 to abut and limit the positioning shell A9, thereby restricting the waterproof and breathable membrane A8 between the positioning shell A9 and the inner surface of the top cover 7. A sealing component is provided at the top of the screw 1.

[0031] Reference Figure 1-6 A gearbox exhaust device has a through hole for ventilation extending from the top to the bottom of a screw 1. A rotating ring is fixedly fitted on the surface of the screw 1 to facilitate rotation of the screw 1. A positioning screw ring 2 is threaded on the surface of the screw 1. The positioning screw ring 2 is located above the rotating ring and is used to limit the depth of the pull cylinder A5 threaded onto the surface of the screw 1. Specifically, when the positioning screw ring 2 is rotated to different height positions on the surface of the screw 1, the pull cylinder A5 can only rotate and be screwed to the position above the positioning screw ring 2 on the surface of the screw 1.

[0032] Reference Figure 1-6 A gearbox exhaust device includes an anti-detachment ring A51 fixedly installed on the outer surface of a pull cylinder A5 near the top, and an anti-detachment ring B61 ​​fixedly installed on the inner surface of a pull cylinder B6 near the bottom. The anti-detachment rings A51 and B61 are of the same specification. The pull cylinder B6 is fitted onto the surface of the pull cylinder A5, with the end of the pull cylinder A5 away from the anti-detachment ring A51 pointing downwards and the end of the pull cylinder B6 away from the anti-detachment ring B61 ​​pointing upwards. The anti-detachment ring A51 presses against the top of the anti-detachment ring B61, so that the pull cylinder B6 is fitted onto the outside of the pull cylinder A5 in a vertical state and will not fall off.

[0033] When the end of the pulling cylinder A5 away from the anti-detachment ring A51 is connected to the surface of the screw 1 near the top via a threaded connection, the pulling cylinder B6 cannot detach from the pulling cylinder A5. Furthermore, when the pulling cylinder A5 continues to rotate clockwise so that it moves downward on the surface of the screw 1, it can drive the pulling cylinder B6 downward, thereby driving the top cover 7 connected to the pulling cylinder B6 to move downward.

[0034] Multiple sets of vent holes A are evenly opened on the surfaces of the top cover 7 and the positioning shell A9. When the gas is discharged from the through hole into the pulling cylinder A5 and the pulling cylinder B6 and then into the top cover 7, it is discharged through the vent hole A.

[0035] Reference Figure 1-6 A gearbox exhaust device includes a sealing assembly comprising a spring 4 and a rubber block 3. The rubber block 3 is located at the top of a screw 1 to block the through hole. The spring 4 is located at the top of the rubber block 3, and the end of the spring 4 away from the rubber block 3 rests against the bottom of the positioning housing A9. At the same time, the downward pressing force of the spring 4 presses the rubber block 3 against the top of the screw 1. In addition, when the top cover 7 moves downward, it can increase the downward pressing force on the spring 4, so that the rubber block 3 can be squeezed by different forces, thereby adjusting the sealing force on the through hole.

[0036] Reference Figure 1-6 A gearbox exhaust device includes a manual exhaust assembly fitted on the surface of a pull cylinder B6. The manual exhaust assembly includes a collar 11 rotatably fitted on the surface of the pull cylinder B6. Damping rings 111 are provided on the inner ring of the collar 11 near the top and bottom. The surface of the pull cylinder B6 has a matching annular groove for the damping rings 111, so that when the collar 11 is fitted on the surface of the pull cylinder B6, the damping rings 111 are located in the annular groove and can rotate. The damping rings 111 can prevent the collar 11 from rotating freely on the surface of the pull cylinder B6.

[0037] Reference Figure 1-6 A gearbox exhaust device, the manual exhaust assembly further includes a positioning shell B12 disposed at the inner ring of a collar 11, a waterproof and breathable membrane B14 provided between the outer ring of the positioning shell B12 and the inner ring of the collar 11, wherein the positioning shell B12 and the waterproof and breathable membrane B14 cannot rotate within the inner ring of the collar 11, and exhaust holes B are provided through the surfaces of the collar 11, the positioning shell B12 and the pull cylinder B6, wherein the diameter of the exhaust hole B is larger than that of the exhaust hole A, which can improve exhaust efficiency and exhaust volume. When the exhaust holes B on the collar 11, the positioning shell B12 and the pull cylinder B6 are in communication, the gas in the pull cylinder A5 and the pull cylinder B6 can be discharged through the exhaust holes B. When the collar 11 is rotated, the exhaust holes B on the collar 11 and the positioning shell B12 and the exhaust holes B on the pull cylinder B6 can be misaligned, thereby preventing air from passing through;

[0038] A positioning block 13 is fixedly provided on the surface of the collar 11, and the positioning block 13 is locked to the traction cylinder B6 by positioning bolts, so that the collar 11 cannot rotate on the surface of the traction cylinder B6.

[0039] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0040] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

Claims

1. A gearbox exhaust device, comprising a screw (1) with a through hole extending through its center, characterized in that, The screw (1) is threaded with a traction cylinder A (5), and a traction cylinder B (6) is movably sleeved on the outside of the traction cylinder A (5). The top of the traction cylinder B (6) is threaded with a top cover (7), and the bottom of the top cover (7) is provided with a waterproof and breathable membrane A (8) and a positioning shell A (9). The bottom of the top cover (7) is threaded with a limit ring (10) for abutting and limiting the positioning shell A (9). The top of the screw (1) is provided with a sealing component.

2. The gearbox exhaust device according to claim 1, characterized in that, The screw (1) has a through hole from top to bottom for ventilation. The screw (1) has a rotating ring fixedly fitted on its surface for easy rotation. The screw (1) also has a positioning ring (2) threaded on its surface.

3. A gearbox exhaust device according to claim 1, characterized in that, The outer ring surface of the traction cylinder A (5) is fixedly provided with an anti-detachment ring A (51) near the top, and the inner ring surface of the traction cylinder B (6) is fixedly provided with an anti-detachment ring B (61) near the bottom. The traction cylinder B (6) is sleeved on the surface of the traction cylinder A (5).

4. A gearbox exhaust device according to claim 1, characterized in that, The sealing assembly includes a spring (4) and a rubber block (3). The rubber block (3) is located at the top of the screw (1) to block the through hole. The spring (4) is located at the top of the rubber block (3), and the end of the spring (4) away from the rubber block (3) rests against the bottom of the positioning shell A (9).

5. A gearbox exhaust device according to claim 1, characterized in that, Multiple sets of exhaust holes A are evenly opened on the surfaces of the top cover (7) and the positioning shell A (9).

6. A gearbox exhaust device according to claim 1, characterized in that, The surface of the traction cylinder B (6) is fitted with a manual venting assembly, and the manual venting assembly includes a collar (11) that is rotatably fitted on the surface of the traction cylinder B (6). The inner ring of the collar (11) is provided with damping rings (111) near the top and bottom. The surface of the traction cylinder B (6) is provided with a matching annular groove for the damping rings (111).

7. A gearbox exhaust device according to claim 6, characterized in that, The manual exhaust assembly also includes a positioning shell B (12) positioned at the inner ring of the collar (11). A waterproof and breathable membrane B (14) is provided between the outer ring of the positioning shell B (12) and the inner ring of the collar (11). Exhaust holes B are provided through the surfaces of the collar (11), the positioning shell B (12) and the traction cylinder B (6). The collar (11) is fixedly provided with a positioning block (13), and the positioning block (13) is locked to the traction cylinder B (6) by a positioning bolt.

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