Sealing mechanism for air spring footstock inflation connector port

Abstract

The utility model discloses an air spring footstock inflation connector port sealing mechanism which comprises a bottom plate, a fixed pressing plate and a movable pressing plate are vertically arranged on the bottom plate, an air injection assembly matched with an upper footstock opening is arranged on the plate face of the fixed pressing plate, and an upper footstock is pressed and sealed between the fixed pressing plate and the movable pressing plate. A connector supporting block is arranged between the fixed pressing plate and the movable pressing plate, a first positioning arc face matched with the outer wall of the inflation connector is arranged on the connector supporting block, a sealing plug is arranged on the side, away from the upper top base, of the connector supporting block, and the sealing plug can abut against a port of the inflation connector on the connector supporting block through a driving piece. According to the utility model, the inflation joint is sealed during the airtightness detection of the upper footstock, no extra sealing element needs to be manually arranged, the repeated work of manually disassembling and assembling the sealing element is avoided, the continuity and the stability of the airtightness detection process are ensured, and the detection efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of air spring testing technology, specifically to a sealing mechanism for the air spring top seat inflation connector port. Background Technology

[0002] In the field of modern vehicles, air springs, as a key component of suspension systems that integrates comfort and off-road performance, have been widely used. They operate by filling a sealed container with compressed air, utilizing the compressibility of gas to achieve ideal non-linear elastic performance.

[0003] During the production of air springs, ensuring the airtightness of the upper mounting plate is crucial. Therefore, it is necessary to ensure the airtightness of the upper mounting plate (such as...). Figure 7 (As shown) an airtightness test is performed. This component is designed with a large opening (i.e., seat 20) for connecting the airbag, and a smaller connector (i.e., inflation connector 21) for filling with compressed air when the air spring is in use. When testing the airtightness of the top seat, the usual practice is to seal the inflation connector 21 with a seal and fix the top seat between two clamps, with the seat tightly abutting against the surface of one of the clamps. Then, gas is injected into the top seat through the air injection port on the clamp to perform the test.

[0004] In the existing testing process, before batch airtightness testing, additional seals (such as sealing plugs, clamps, etc.) need to be installed on the inflation joints of the entire batch of top mounts to seal them. After all tests are completed, the seals are then removed from the entire batch of products. The disassembly and assembly process is cumbersome, consumes a lot of manpower and time, and greatly restricts the overall efficiency of airtightness testing, making it difficult to meet the needs of high-efficiency production. Utility Model Content

[0005] The purpose of this utility model is to provide a sealing mechanism for the air spring top seat inflation connector port, which can seal the inflation connector during the air tightness test of the upper top seat without the need for manual installation of additional sealing components, eliminate the repetitive labor of manually disassembling and assembling sealing components, ensure the continuity and stability of the air tightness test process, and effectively improve the test efficiency.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an air spring top seat inflation connector port sealing mechanism, including a base plate, on which a fixed pressure plate and a dynamic pressure plate are vertically arranged. An air injection component that cooperates with the upper top seat is provided on the surface of the fixed pressure plate. The upper top seat presses and seals between the fixed pressure plate and the dynamic pressure plate. A connector support block is provided between the fixed pressure plate and the dynamic pressure plate. The connector support block is provided with a first positioning arc surface that cooperates with the outer wall of the inflation connector. A sealing plug is provided on the side of the connector support block away from the upper top seat. The sealing plug can abut against the port of the inflation connector on the connector support block through a driving component.

[0007] The further improved scheme of the utility model is that the driving part comprises a first cylinder, a lever arm and a rotating shaft vertically arranged on the surface of the constant pressure plate, the lever arm is pivotally connected to the rotating shaft to form a lever structure capable of rotating around the rotating shaft, one side of the lower end of the lever arm is connected to the telescopic end of the first cylinder, the upper end forms a free end, and the sealing plug is arranged on one side of the free end.

[0008] The further improved scheme of the utility model is that an elastic layer is arranged on the surface of the sealing plug abutting against the inflation connector.

[0009] The further improved scheme of the utility model is that one side of the upper end of the lever arm is provided with a mounting pipe perpendicular to the surface thereof, and the sealing plug is connected in the pipe opening of the mounting pipe through a centripetal joint bearing.

[0010] The further improved scheme of the utility model is that a support strip is arranged on the surface of the constant pressure plate, the connector supporting block is fixedly arranged on the support strip, a limiting rod for preventing the lever arm from excessively rotating is arranged on the support strip and located on one side of the connector supporting block close to the pivot lever arm.

[0011] The further improved scheme of the utility model is that the support strip is parallel to the bottom plate and is provided with a protrusion thereon, the limiting rod is threadedly connected to the protrusion, and the limiting rod and the constant pressure plate are arranged in parallel.

[0012] The further improved scheme of the utility model is that a gas injection port is arranged on the surface of the constant pressure plate, a seat body supporting block matched with the upper seat is arranged on the constant pressure plate and located below the gas injection port, and a second positioning arc surface matched with the outer wall of the seat body of the upper seat is arranged on the seat body supporting block.

[0013] The further improved scheme of the utility model is that the first cylinder is located between the constant pressure plate and the dynamic pressure plate and below the seat body supporting block.

[0014] The further improved scheme of the utility model is that one side of the dynamic pressure plate away from the constant pressure plate is provided with a second cylinder for driving the dynamic pressure plate to be close to or away from the constant pressure plate.

[0015] The utility model has the advantages that:

[0016] The utility model sets the sealing plug and the corresponding structure matched with the sealing plug between the constant clamping plate and the dynamic clamping plate, can seal the inflation connector during the airtightness detection of the upper seat, does not need manpower to set an additional sealing piece, eliminates the repeated labor of manually disassembling the sealing piece, ensures the continuity and stability of the airtightness detection process, and effectively improves the detection efficiency.

[0017] The utility model discloses a joint support block is provided with the first locating cambered surface that cooperates with the outer wall of the inflation joint on the joint support block, and the inflation joint of the upper top seat can be supported and positioned through the first locating cambered surface, so that the pipe body of the inflation joint is kept horizontal, and the sealing plug is abutted to be sealed.

[0018] The driving part drives the sealing plug to abut the inflation joint by the lever principle, guarantees the stability of the sealing, and the air cylinder can be arranged below the upper top seat to be detected, so that the structure of the whole device is more compact, and the space occupation is reduced.

[0019] The upper end side of the lever arm is equipped with the mounting pipe perpendicular to its surface, the sealing plug is connected in the pipe opening of the mounting pipe through the centripetal joint bearing, the angle of the sealing plug is allowed to be finely adjusted in the radial and axial directions, so that the end face of the sealing plug is kept parallel to the surface of the workpiece and abuts, and then the sealing surface of the sealing plug is uniformly stressed, and the sealing effect is improved.

[0020] The limiting rod can limit the moving stroke of the sealing plug, avoids that the inflation joint is damaged due to excessive pressing, and the limiting rod is screw-connected on the convex, can be adjusted, and then the moving stroke of the sealing plug is flexibly limited. DRAWINGS

[0021] Figure 1 It is the structure three-dimensional schematic diagram of the utility model.

[0022] Figure 2 It is the structure three-dimensional partial enlarged schematic diagram of the utility model.

[0023] Figure 3 It is the structure main view schematic diagram of the utility model (the dynamic pressure plate is not shown in the drawing).

[0024] Figure 4 It is the structure schematic diagram of the lever arm of the utility model.

[0025] Figure 5 It is the structure schematic diagram of the joint support block of the utility model.

[0026] Figure 6 It is the structure section view schematic diagram of the sealing plug of the utility model.

[0027] Figure 7 It is the structure schematic diagram of the upper top seat of the air spring in the prior art.

[0028] In the figure, 1 - bottom plate, 2 - fixed pressure plate, 3 - movable pressure plate, 4 - joint support block, 5 - first positioning arc surface, 6 - sealing plug, 7 - first cylinder, 8 - lever arm, 9 - rotating shaft, 10 - elastic layer, 11 - mounting pipe, 12 - radial spherical bearing, 13 - support strip, 14 - limiting rod, 15 - protrusion, 16 - seat support block, 17 - second positioning arc surface, 18 - second cylinder, 19 - upper top seat, 20 - seat mouth, 21 - inflation joint. DETAILED DESCRIPTION

[0029] The utility model is further illustrated below in combination with the drawings and specific embodiments.

[0030] Embodiment 1: in combination Figures 1-7 It can be known that the inflation joint port sealing mechanism of the air spring top seat comprises a bottom plate 1, a fixed pressure plate 2 and a movable pressure plate 3 are vertically arranged on the bottom plate 1, the fixed pressure plate 2 is provided with a gas injection assembly matched with the seat mouth of the upper top seat on the plate surface, the upper top seat is tightly sealed between the fixed pressure plate 2 and the movable pressure plate 3, a joint support block 4 is arranged between the fixed pressure plate 2 and the movable pressure plate 3, the joint support block 4 is provided with a first positioning arc surface 5 matched with the outer wall of the inflation joint, the side of the joint support block 4 away from the upper top seat is provided with a sealing plug 6, and the sealing plug 6 can abut against the port of the inflation joint on the joint support block 4 through a driving member.

[0031] The driving member comprises a first cylinder 7, a lever arm 8 and a rotating shaft 9 vertically arranged on the plate surface of the fixed pressure plate 2, the lever arm 8 is pivotally connected to the rotating shaft 9 to form a lever structure capable of rotating around the rotating shaft 9, one side of the lower end of the lever arm 8 is connected with the telescopic end of the first cylinder 7, the upper end forms a free end, and the sealing plug 6 is arranged on one side of the free end.

[0032] The lower end of the lever arm 8 and the telescopic end of the first cylinder 7 are hingedly connected through a hinged joint, when the first cylinder 7 is extended, the hinged joint pushes the lever arm 8 to rotate around the rotating shaft 9, and the upper end of the lever arm 8 moves in the opposite direction to press the sealing plug 6 to the inflation joint.

[0033] The surface of the sealing plug 6 abutting against the inflation joint is provided with an elastic layer 10. Preferably, the elastic layer 10 is a rubber layer.

[0034] One side of the upper end of the lever arm 8 is provided with a mounting pipe 11 perpendicular to the surface thereof, and the sealing plug 6 is connected in the pipe opening of the mounting pipe 11 through a radial spherical bearing 12. When the lever arm 8 rotates around the rotating shaft 9, the radial spherical bearing 12 allows the sealing plug 6 to be slightly adjusted in the radial and axial directions, so that the end face of the sealing plug 6 always keeps parallel abutment with the port face of the inflation joint. Preferably, the sealing plug 6 is connected in the pipe opening of the mounting pipe 11 through the radial spherical bearing 12, the outer ring of the radial spherical bearing 12 is in interference fit with the inner wall of the mounting pipe 11, and the inner ring is fixed to the outer wall of the sealing plug 6 through threads.

[0035] The pressure plate 2 has a support bar 13 on its surface, and the connector block 4 is fixedly mounted on the support bar 13. Optionally, a limit rod 14 is provided on the support bar 13 on the side of the connector block 4 near the lever arm 8 to prevent the lever arm 8 from rotating excessively.

[0036] The support bar 13 is parallel to the base plate 1 and has a protrusion 15 on it. A limit rod 14 is threaded onto the protrusion 15, and the limit rod 14 is parallel to the pressure plate 2. The extension and retraction direction of the first cylinder 7 and the length direction of the rotating shaft 9 are set along the length direction of the base plate 1. The pressure plate 2, the dynamic pressure plate 3, and the limit rod 14 are set along the width direction of the base plate 1. When the inflation connector 21 mates with the first positioning arc surface 5 of the connector support block 4, it remains horizontal, and the length direction of the inflation connector is consistent with the width direction of the base plate 1.

[0037] An air injection port is provided on the surface of the pressure plate 2. A seat support block 16 that mates with the upper top seat is provided on the pressure plate 2 below the air injection port. The seat support block 16 has a second positioning arc surface 17 that mates with the outer wall of the upper top seat. Accurate positioning is achieved through the cooperation of the seat support block 16 and the connector support block 4 and the two positioning surfaces.

[0038] The first cylinder 7 is located between the fixed pressure plate 2 and the dynamic pressure plate 3 and below the seat block 16. It can be set below the clamping upper seat to reduce space occupation.

[0039] A second cylinder 18 is provided on the side of the dynamic pressure plate 3 away from the fixed pressure plate 2 to drive it to move closer to or away from the fixed pressure plate 2. The dynamic pressure plate 3 is moved by the second cylinder 18.

[0040] The working principle of the air spring top seat inflation connector port sealing mechanism provided by the utility model is as follows: In use, firstly, the upper top seat is placed on the seat support block 16, and the upper top seat is adjusted so that the inflation connector 21 on it is in conjunction with the first positioning arc surface 5 on the connector support block 4 to keep it horizontal. Then, the second cylinder 18 is activated so that the dynamic pressure plate 3 and the fixed pressure plate 2 cooperate to clamp the upper top seat, thereby sealing the upper top seat port 20. Then, the first cylinder 7 is activated to push the lever arm 8 to rotate around the rotating shaft 9, causing the upper end of the lever arm 8 to move toward the upper top seat, so that the sealing plug 6 is tightly abutted against the port surface of the inflation connector 21, thereby sealing the inflation connector 21.

[0041] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A sealing mechanism for the port of an air spring top seat inflation connector, comprising a base plate (1), wherein a fixed pressure plate (2) and a dynamic pressure plate (3) are vertically disposed on the base plate (1), and an air injection component that cooperates with the upper top seat opening is disposed on the surface of the fixed pressure plate (2), wherein the upper top seat is pressed and sealed between the fixed pressure plate (2) and the dynamic pressure plate (3), characterized in that: A connector support block (4) is provided between the constant pressure plate (2) and the dynamic pressure plate (3). The connector support block (4) is provided with a first positioning arc surface (5) that matches the outer wall of the inflation connector. A sealing plug (6) is provided on the side of the connector support block (4) away from the upper top seat. The sealing plug (6) can abut against the port of the inflation connector on the connector support block (4) through a driving component.

2. The air spring top seat inflation connector port sealing mechanism according to claim 1, characterized in that: The driving component includes a first cylinder (7), a lever arm (8), and a rotating shaft (9) erected on the surface of the pressure plate (2). The lever arm (8) is pivotally connected to the rotating shaft (9) to form a lever structure that can rotate around the rotating shaft (9). The lower end of the lever arm (8) is connected to the telescopic end of the first cylinder (7), and the upper end forms a free end. The sealing plug (6) is disposed on one side of the free end.

3. The air spring top seat inflation connector port sealing mechanism according to claim 1 or 2, characterized in that: The sealing plug (6) has an elastic layer (10) on the surface that abuts against the inflation connector.

4. The air spring top seat inflation connector port sealing mechanism according to claim 2, characterized in that: The upper end of the lever arm (8) is provided with an installation tube (11) perpendicular to its surface, and the sealing plug (6) is connected to the opening of the installation tube (11) through a radial spherical bearing (12).

5. The air spring top seat inflation connector port sealing mechanism according to claim 2, characterized in that: The pressure plate (2) has a support strip (13) on its surface. The connector block (4) is fixedly mounted on the support strip (13). The support strip (13) has a limiting rod (14) on the side of the connector block (4) near the pivot lever arm (8) to prevent the lever arm (8) from rotating excessively.

6. The air spring top seat inflation connector port sealing mechanism according to claim 5, characterized in that: The support bar (13) is parallel to the base plate (1) and has a protrusion (15) thereon. The protrusion (15) is threaded with the limiting rod (14). The limiting rod (14) is parallel to the pressure plate (2).

7. The air spring top seat inflation connector port sealing mechanism according to claim 2, characterized in that: The pressure plate (2) has an air injection port on its surface. The pressure plate (2) has a seat support block (16) that cooperates with the upper top seat on its surface and below the air injection port. The seat support block (16) has a second positioning arc surface (17) that cooperates with the outer wall of the upper top seat.

8. The air spring top seat inflation connector port sealing mechanism according to claim 7, characterized in that: The first cylinder (7) is located between the constant pressure plate (2) and the dynamic pressure plate (3) and below the seat block (16).

9. The air spring top seat inflation connector port sealing mechanism according to claim 1, characterized in that: The dynamic pressure plate (3) is provided with a second cylinder (18) on the side away from the fixed pressure plate (2) to drive it to approach or move away from the fixed pressure plate (2).

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