Sealing device

Abstract

The invention relates to the technical field of automobile manufacturing, in particular to a sealing device. The sealing device can be arranged in the axle housing, a reinforcing ring is arranged in the axle housing, the sealing cover can be arranged on the top wall of the reinforcing ring, the output end of the driving part penetrates through the sealing cover to be connected with the mounting plate, the pressing plates are arranged in the circumferential direction of the mounting plate at intervals, and one ends of the pressing plates are rotationally connected to the mounting plate. The other end of the pressing plate is rotationally connected to the sealing cover, the top wall of the other end of the pressing plate can abut against the bottom wall of the reinforcing ring, and the driving piece can drive the mounting plate to move so that the other end of the pressing plate can abut against or be separated from the bottom wall of the reinforcing ring. Compared with the prior art, the device drives the mounting plate to move through the driving piece, the pressing plate can abut against the bottom wall of the reinforcing ring, then the sealing cover abuts against the top wall of the reinforcing ring, sealing of the axle housing is completed, manual operation is replaced, and the detection efficiency is improved; meanwhile, the driving piece can adjust the extrusion force between the sealing cover and the top wall of the reinforcing ring, and the sealing effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile manufacturing, and in particular to a sealing device. Background Art

[0002] In the automobile manufacturing process, the stamped and welded bridge housing is a welded assembly structure with many welds. Welding defects can easily cause air and oil leakage, so the bridge housing needs to be tested for air leakage.

[0003] In the prior art, a sealing cover plate is usually used to seal the middle of the bridge housing, and both ends are sealed with threaded plugs and then ventilated. After the air pressure reaches a certain value, the pressure is maintained and the change in air pressure is observed. However, the entire sealing process requires manual operation, which results in high labor intensity for workers, low detection efficiency, and poor sealing effect, which leads to air leakage and affects the detection results.

[0004] Therefore, a sealing device is urgently needed to solve the above technical problems. Summary of the invention

[0005] The purpose of the present invention is to provide a sealing device which can improve detection efficiency and enhance sealing effect.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A sealing device can be arranged in a bridge housing, wherein a reinforcement ring is arranged inside the bridge housing, and is characterized in that it comprises: a sealing cover, a mounting plate, a plurality of pressure plates and a driving member, wherein the sealing cover can be arranged on the top wall of the reinforcement ring, the output end of the driving member passes through the sealing cover and is connected to the mounting plate, a plurality of pressure plates are arranged at intervals along the circumferential direction of the mounting plate, one end of the pressure plate is rotatably connected to the mounting plate, the other end of the pressure plate is rotatably connected to the sealing cover, and the top wall of the other end of the pressure plate can be abutted against the bottom wall of the reinforcement ring, and the driving member can drive the mounting plate to move so that the other end of the pressure plate abuts against or separates from the bottom wall of the reinforcement ring.

[0008] As a preferred technical solution of the above-mentioned sealing device, the sealing device further includes a first sealing member, and the first sealing member is arranged between the sealing cover and the top wall of the reinforcement ring.

[0009] As a preferred technical solution of the above-mentioned sealing device, the sealing device also includes a plurality of brackets, and the plurality of brackets are arranged in a one-to-one correspondence with the plurality of pressure plates, one end of the bracket is connected to the sealing cover, and the other end of the bracket is rotatably connected to the other end of the pressure plate.

[0010] As a preferred technical solution of the above-mentioned sealing device, the sealing device also includes a plurality of connecting plates, and the plurality of connecting plates are arranged in a one-to-one correspondence with the plurality of brackets, and the two ends of the connecting plates are rotatably connected to the brackets and the pressure plate respectively.

[0011] As a preferred technical solution of the above-mentioned sealing device, the sealing device further includes a second sealing member, and the second sealing member is arranged between the bracket and the sealing cover.

[0012] As a preferred technical solution of the above-mentioned sealing device, the sealing device also includes a connecting member, one end of which can pass through the mounting plate to be connected to the output end of the driving member, and the other end of the connecting member can be abutted against the bottom wall of the mounting plate.

[0013] As a preferred technical solution of the above-mentioned sealing device, the sealing device further includes an adjusting member, and the adjusting member is arranged between the bottom wall of the mounting plate and the connecting member.

[0014] As a preferred technical solution of the above-mentioned sealing device, the sealing device also includes a third sealing member, the mounting plate is provided with a through hole, one end of the connecting member can pass through the through hole to be connected to the output end of the driving member, and the third sealing member is arranged between the hole wall of the through hole and the side wall of the connecting member.

[0015] As a preferred technical solution of the above-mentioned sealing device, the sealing device further includes a handle, and the handle is arranged on the sealing cover.

[0016] As a preferred technical solution of the above-mentioned sealing device, the driving member is a cylinder.

[0017] Beneficial effects of the present invention:

[0018] The present invention provides a sealing device, which can be arranged in a bridge housing, wherein a reinforcement ring is arranged inside the bridge housing, and the sealing device comprises: a sealing cover, a mounting plate, a plurality of pressure plates and a driving member, wherein the sealing cover can be arranged on the top wall of the reinforcement ring, the output end of the driving member passes through the sealing cover and is connected to the mounting plate, and the plurality of pressure plates are arranged at intervals along the circumferential direction of the mounting plate, one end of the pressure plate is rotatably connected to the mounting plate, and the other end of the pressure plate is rotatably connected to the sealing cover, and the top wall of the other end of the pressure plate can abut against the bottom wall of the reinforcement ring, and the driving member can drive the mounting plate to move so that the other end of the pressure plate abuts against or separates from the bottom wall of the reinforcement ring. Compared with the prior art, the device drives the mounting plate to move through the driving member, so that the pressure plate abuts against the bottom wall of the reinforcement ring, and then the sealing cover abuts against the top wall of the reinforcement ring, thereby completing the sealing of the bridge housing, replacing manual operation, and improving detection efficiency; at the same time, the driving member can adjust the extrusion force between the sealing cover and the top wall of the reinforcement ring to improve the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0020] Figure 1 A structural cross-sectional view of a sealing device in a relaxed state provided by an embodiment of the present invention;

[0021] Figure 2 A structural cross-sectional view of a sealing device in a clamped state provided by an embodiment of the present invention;

[0022] Figure 3 A structural side view of a sealing device in a clamped state provided by an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of the structure of a mounting plate provided in an embodiment of the present invention;

[0024] Figure 5 A top view of the structure of a sealing device provided by an embodiment of the present invention;

[0025] Figure 6 A bottom view of the structure of a sealing device provided in an embodiment of the present invention.

[0026] In the figure:

[0027] 1. Reinforcement ring; 2. Sealing cover; 3. Mounting plate; 31. Through hole; 32. Avoidance groove; 4. Pressure plate; 5. Driving member; 6. First sealing member; 7. Bracket; 8. Connecting plate; 9. Second sealing member; 10. Connecting member; 11. Adjusting member; 12. Third sealing member; 13. Handle; 14. Mounting pin; 15. Split pin; 16. Gasket. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it 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 the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0032] like Figures 1 to 6 As shown, the present invention provides a sealing device which can be arranged in a bridge housing. A reinforcing ring 1 is arranged inside the bridge housing. The sealing device comprises: a sealing cover, a mounting plate 3, a plurality of pressure plates 4 and a driving member 5.

[0033] Specifically, the sealing cover can be arranged on the top wall of the reinforcement ring 1, the output end of the driving member 5 passes through the sealing cover and is connected to the mounting plate 3, a plurality of pressing plates 4 are arranged at intervals along the circumferential direction of the mounting plate 3, one end of the pressing plate 4 is rotatably connected to the mounting plate 3, the other end of the pressing plate 4 is rotatably connected to the sealing cover, and the top wall of the other end of the pressing plate 4 can abut against the bottom wall of the reinforcement ring 1, and the driving member 5 can drive the mounting plate 3 to move so that the other end of the pressing plate 4 abuts against or separates from the bottom wall of the reinforcement ring 1. Compared with the prior art, the device drives the mounting plate 3 to move through the driving member 5, so that the pressing plate 4 abuts against the bottom wall of the reinforcement ring 1, and then the sealing cover abuts against the top wall of the reinforcement ring 1, completing the sealing of the bridge housing, replacing manual operation, and improving detection efficiency; at the same time, the driving member 5 can adjust the extrusion force between the sealing cover and the top wall of the reinforcement ring 1 to improve the sealing effect.

[0034] Optionally, the sealing device further includes a first sealing member 6, which is disposed between the sealing cover and the top wall of the reinforcing ring 1. Specifically, in the present embodiment, the first sealing member 6 is made of a silicone material, and is fixed to the bottom wall of the sealing cover by a strong glue, and when the first sealing member 6 is squeezed by the sealing cover and the reinforcing ring 1, it can be deformed to improve the sealing performance between the sealing cover and the reinforcing ring 1. Of course, in some other embodiments, the first sealing member 6 can also be made of a flexible rubber material, and the first sealing member 6 can be connected or not connected to the sealing cover, and the connection method is not limited.

[0035] Optionally, the sealing device further comprises a plurality of brackets 7, which are arranged in one-to-one correspondence with the plurality of pressing plates 4, one end of the bracket 7 is connected to the sealing cover, and the other end of the bracket 7 is rotatably connected to the other end of the pressing plate 4. Specifically, in this embodiment, the sealing device is provided with four pressing plates 4, one end of the pressing plate 4 is rotatably connected to the mounting plate 3, the other end of the pressing plate 4 is provided with an abutment portion, and the bracket 7 is connected to the inner side of the abutment portion so that the abutment portion can abut against the bottom wall of the reinforcement ring 1. Of course, in some other embodiments, the number of pressing plates 4 is determined according to actual requirements, which will not be described in detail here.

[0036] Optionally, the sealing device further comprises a plurality of connecting plates 8, which are arranged in one-to-one correspondence with the plurality of brackets 7, and the two ends of the connecting plates 8 are respectively rotatably connected to the brackets 7 and the pressing plates 4. Specifically, the connecting plates 8 are connected to the inner side of the abutting portion, so that the brackets 7, the connecting plates 8 and the pressing plates 4 together form a hinge structure, which can ensure that the abutting portion can abut against the bottom wall of the reinforcing ring 1, and can increase the displacement of the pressing plates 4, increase the rotation angle of the pressing plates 4, can be applied to axle housings of different sizes, and improve the versatility of the sealing device.

[0037] Optionally, the sealing device further comprises a plurality of mounting pins 14, and both ends of the connecting plate 8 are respectively connected to the bracket 7 and the pressure plate 4 via the mounting pins 14, which can facilitate the installation and disassembly of the sealing device and improve the stability of the sealing device.

[0038] Optionally, the sealing device further comprises a plurality of cotter pins 15, wherein the plurality of cotter pins 15 are arranged in one-to-one correspondence with the plurality of mounting pins 14, a pin hole is arranged at one end of the mounting pin 14, and one end of the cotter pin 15 can pass through the pin hole to prevent the mounting pin 14 from falling off.

[0039] Optionally, the sealing device also includes a plurality of gaskets 16, which are sleeved on the outer periphery of the mounting pin 14, and the gaskets 16 are located between the cotter pin 15 and the bracket 7 or between the cotter pin 15 and the pressure plate 4, which can reduce the wear of the cotter pin 15, increase the service life of the cotter pin 15, and improve the stability of the sealing device.

[0040] Optionally, the sealing device further comprises a second sealing member 9, which is arranged between the bracket 7 and the sealing cover, and can improve the sealing between the bracket 7 and the sealing cover to prevent air leakage.

[0041] Optionally, the sealing device also includes a connecting member 10, one end of which can pass through the mounting plate 3 and be connected to the output end of the driving member 5, and the other end of the connecting member 10 can be abutted against the bottom wall of the mounting plate 3, thereby improving the stability of the connection between the mounting plate 3 and the driving member 5 and preventing the mounting plate 3 from separating from the driving member 5.

[0042] Optionally, the sealing device further includes an adjusting member 11, which is disposed between the bottom wall of the mounting plate 3 and the connecting member 10. Specifically, the connecting member 10 is a bolt, one end of which can pass through the mounting plate 3 and be threadedly connected to the output end of the driving member 5. The adjusting member 11 is disposed between the bottom wall of the mounting plate 3 and the bolt, which can prevent the bolt from loosening and prevent the mounting plate 3 from directly contacting the bolt, thereby avoiding damage to the mounting plate 3.

[0043] Optionally, the sealing device further includes a third sealing member 12. The mounting plate 3 is provided with a through hole 31. One end of the connecting member 10 can pass through the through hole 31 to connect with the output end of the driving member 5. The third sealing member 12 is provided between the hole wall of the through hole 31 and the side wall of the connecting member 10, and can improve the sealing between the hole wall of the through hole 31 and the side wall of the connecting member 10, and prevent gas from flowing out from the gap between the hole wall of the through hole 31 and the side wall of the connecting member 10. Further, the third sealing member 12 is a spherical gasket.

[0044] Furthermore, the mounting plate 3 is provided with four avoidance grooves 32, and the four avoidance grooves 32 are arranged in one-to-one correspondence with the four pressing plates 4, which can avoid interference of the mounting plate 3 on the pressing plate 4 and enable the pressing plate 4 to move smoothly.

[0045] Optionally, the sealing device further includes a handle 13, which is disposed on the sealing cover. Specifically, the handle 13 is welded to the top of the sealing cover for easy hand-carrying or lifting with a sling. In this embodiment, the sealing device is provided with two handles 13, which are respectively disposed on both sides of the driving member 5, so that both sides of the sealing device can be stressed and balanced, thereby preventing the sealing device from being damaged during transportation. Of course, in some other embodiments, the number of handles 13 is determined according to actual requirements, which will not be described in detail here.

[0046] Optionally, in this embodiment, the driving member 5 is a cylinder. Of course, in some other embodiments, the driving member 5 can be a hydraulic cylinder or an electric push rod, etc., which will not be described in detail here.

[0047] In addition, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A sealing device capable of being arranged in a bridge housing, wherein a reinforcement ring (1) is arranged inside the bridge housing, characterized in that: include: A sealing cover, a mounting plate (3), a plurality of pressure plates (4) and a driving member (5), wherein the sealing cover can be arranged on the top wall of the reinforcement ring (1), the output end of the driving member (5) passes through the sealing cover and is connected to the mounting plate (3), a plurality of pressure plates (4) are arranged at intervals along the circumferential direction of the mounting plate (3), one end of the pressure plate (4) is rotatably connected to the mounting plate (3), the other end of the pressure plate (4) is rotatably connected to the sealing cover, and the top wall of the other end of the pressure plate (4) can abut against the bottom wall of the reinforcement ring (1), and the driving member (5) can drive the mounting plate (3) to move so that the other end of the pressure plate (4) abuts against or separates from the bottom wall of the reinforcement ring (1).

2. A sealing device according to claim 1, characterized in that: The sealing device further comprises a first sealing member (6), wherein the first sealing member (6) is arranged between the sealing cover and the top wall of the reinforcement ring (1).

3. A sealing device according to claim 1, characterized in that: The sealing device further comprises a plurality of brackets (7), wherein the plurality of brackets (7) are arranged in a one-to-one correspondence with the plurality of pressure plates (4), one end of the bracket (7) is connected to the sealing cover, and the other end of the bracket (7) is rotatably connected to the other end of the pressure plate (4).

4. A sealing device according to claim 3, characterized in that: The sealing device further comprises a plurality of connecting plates (8), wherein the plurality of connecting plates (8) are arranged in a one-to-one correspondence with the plurality of brackets (7), and the two ends of the connecting plates (8) are rotatably connected to the brackets (7) and the pressure plates (4) respectively.

5. A sealing device according to claim 3, characterized in that: The sealing device further comprises a second sealing member (9), wherein the second sealing member (9) is arranged between the bracket (7) and the sealing cover.

6. A sealing device according to claim 1, characterized in that: The sealing device further comprises a connecting member (10), one end of which can pass through the mounting plate (3) to be connected to the output end of the driving member (5), and the other end of which can abut against the bottom wall of the mounting plate (3).

7. A sealing device according to claim 6, characterized in that: The sealing device further comprises an adjusting member (11), wherein the adjusting member (11) is arranged between the bottom wall of the mounting plate (3) and the connecting member (10).

8. A sealing device according to claim 6, characterized in that: The sealing device further comprises a third sealing member (12); the mounting plate (3) is provided with a through hole (31); one end of the connecting member (10) can pass through the through hole (31) to be connected to the output end of the driving member (5); and the third sealing member (12) is arranged between the hole wall of the through hole (31) and the side wall of the connecting member (10).

9. A sealing device according to any one of claims 1 to 8, characterized in that: The sealing device further comprises a handle (13), wherein the handle (13) is arranged on the sealing cover.

10. A sealing device according to any one of claims 1 to 8, characterized in that: The driving member (5) is a cylinder.

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