A bidirectional sealed automotive ball joint assembly

Abstract

The application discloses a bidirectional sealing automobile ball hinge assembly and relates to the field of automobile ball hinges, which comprises a ball pin column and a ball pin sleeve, wherein the ball pin column is rotationally connected with the ball pin sleeve, a rubber sleeve is sleeved outside the connecting position of the ball pin column and the ball pin sleeve, a threaded ring is connected to the outer side of the bottom end of the rubber sleeve, an upper sleeve is connected to the top end of the rubber sleeve, a plurality of sealing rings are arranged on the top end of the upper sleeve, and a locking ring is threadedly connected to the outer wall of the ball pin sleeve. The rubber sleeve, the locking ring and the top disc are arranged, in the use process, the rubber sleeve is first sleeved outside the ball pin column, then the bottom end of the rubber sleeve is fixed and limited by rotating the locking ring, then the outer side of the bottom end of the rubber sleeve is fixed and limited by the locking ring, the rubber sleeve is fixed outside the ball pin column by the top disc, the top end of the rubber sleeve is further sealed by inserting the clamping ring into the sealing ring, and thus the sealing effect is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the field of automobile ball hinges, in particular to a bidirectional sealing automobile ball hinge assembly. BACKGROUND

[0002] Ball hinge is a professional term of mechanical discipline, which refers to a connecting form composed of a steel ball and a ball bowl, allows rotation in three directions and restricts three translational degrees of freedom, on an automobile, the ball hinge is a very common connecting structure, especially in the swing arm structure of the automobile, in order to facilitate angle adjustment, the ball hinge structure is used to connect the swing arm and the automobile suspension assembly, the existing ball hinge structure is usually composed of a connecting shaft, a ball head and a ball neck, and a dust cover is installed on the outside.

[0003] The prior art such as Chinese patent publication No. CN208089755U discloses an automobile swing arm ball hinge press-fit type dust cover mounting system, which comprises a dust cover body, a ball pin and a ball pin seat, the dust cover body is a hollow structure in the shape of inverted U, the ball pin seat is a hollow structure in the shape of circle, the ball pin passes through the top of the dust cover body and is installed in the inner cavity of the ball pin seat through the ball head, the dust cover body is press-fit on the ball pin seat, and the end in contact with the ball pin seat is provided with a lower framework in the shape of V in cross section, the protective structure is a hard sealing shell, such as publication No. CN204553849U discloses an automobile large swing angle ball hinge wave-shaped dust cover, which comprises a dust cover small end, a dust cover middle segment and a dust cover large end, the dust cover small end is provided with a small end sealing lip, the inner side of the small end sealing lip is provided with an annular groove, and the outer side of the small end sealing lip is provided with a clamping groove one; the dust cover large end is provided with a large end sealing lip, the outer side of the large end sealing lip is provided with a clamping groove two; and the dust cover middle segment is in the shape of wave.

[0004] As can be seen from the prior art, it is a very common technical means to protect the ball hinge outside by using a dust cover, which is directly sleeved on the outside of the ball hinge and limited at both ends, but the existing limit is usually by gluing or using the elasticity of the rubber itself to fit on the outside of the base, therefore, the existing technology has poor sealing effect only by the elasticity of the rubber itself in the use process, and the rubber material is also prone to fatigue for a long time, causing the dust cover to fall off, and the rubber structure of the dust cover is prone to damage when encountering strong or sharp impact, resulting in poor dustproof effect of the dust cover. SUMMARY

[0005] Therefore, the purpose of the application is to provide a bidirectional sealing automobile ball hinge assembly to solve the technical problems of aging sealing position and easy damage of the dust cover.

[0006] To achieve the above object, the application provides the following technical scheme: a bidirectional sealing automobile ball hinge assembly, comprising a ball pin column and a ball pin sleeve, and the ball pin column and the ball pin sleeve are rotationally connected, a rubber sleeve is sleeved outside the connection position of the ball pin column and the ball pin sleeve, a threaded ring is connected to the outer side of the bottom end of the rubber sleeve, an upper sleeve is connected to the top end of the rubber sleeve, a plurality of sealing rings are arranged at the top end of the upper sleeve, a locking ring is threadedly connected to the outer wall of the ball pin sleeve, the locking ring is fixed with the rubber sleeve through the threaded ring, a top disc is sleeved outside the ball pin column, the bottom end of the top disc is tightly pressed against the sealing ring, and the rubber sleeve is provided with a buffer structure and a supporting structure.

[0007] By adopting the above technical scheme, the ball hinge can be conveniently adjusted at multiple angles, the connection position of the ball hinge is sealed and protected by the rubber sleeve, and the sealing and protection effect is improved by the buffer structure and the supporting structure.

[0008] The application is further provided that the top end of the ball pin column is connected with a fixing rod, a groove is arranged in the center of the fixing rod, the bottom end of the ball pin column is connected with a ball pin, and the ball pin column is rotationally connected with the ball pin sleeve through the ball pin.

[0009] As preferred, the ball pin column can be conveniently connected with external equipment, and the ball pin column can be conveniently adjusted in angle through the ball pin.

[0010] The application is further provided that a lubricating cavity is arranged in the ball pin sleeve, the lubricating cavity is filled with lubricating oil, the ball pin is rotationally connected with the lubricating cavity, the top end of the ball pin sleeve is connected with an edge seal, a sealing ring is arranged on the inner side of the edge seal, and the edge seal is fixed to the sealing ring after being bent.

[0011] As preferred, the angle of the ball pin can be conveniently adjusted, and the ball pin is limited by the edge seal and the sealing ring.

[0012] The application is further provided that the inner wall of the upper sleeve is tightly combined with the outer wall of the ball pin column, a plurality of sealing rings are arranged at the top end of the upper sleeve, a snap ring is connected to the bottom end of the top disc, and the top disc is connected with the sealing ring through the snap ring.

[0013] As preferred, the position of the ball pin column can be conveniently sealed by the upper sleeve, and the rubber sleeve is limited and sealed by the top disc.

[0014] The application is further provided that a thread is arranged on the outer wall of the ball pin sleeve, the locking ring is rotationally connected with the ball pin sleeve through the thread, the threaded ring is located directly above the thread on the outer wall of the ball pin sleeve, the threaded ring is flush with the thread, and the threaded ring is fixedly connected with the ball pin sleeve through the locking ring.

[0015] As preferred, the lower part of the rubber sleeve can be conveniently sealed and limited.

[0016] The support structure is internally provided with a support net in the rubber sleeve, the outer wall of the support net is tightly attached to the inner wall of the rubber sleeve, and the first guide ring is arranged in the middle of the support net and located above the sealing edge.

[0017] As preferred, the rubber sleeve can be supported, the strength of the rubber sleeve is improved, and the toughness of the rubber sleeve is improved by the support net when the rubber sleeve is impacted.

[0018] The buffer structure is internally provided with an upper single-layer sleeve and a lower single-layer sleeve in the rubber sleeve, the upper single-layer sleeve is located at the top end of the inner wall of the rubber sleeve, the upper single-layer sleeve is aligned with the corner position of the rubber sleeve, the lower single-layer sleeve is located above the ball pin sleeve and attached to the top end outer wall of the ball pin sleeve.

[0019] As preferred, the strength of the rubber sleeve can be improved, and the single-layer sleeve can further seal when the rubber sleeve is punctured.

[0020] The support structure is externally connected with a flexible net in the rubber sleeve, two groups of second guide rings are symmetrically arranged in the middle of the flexible net, the top end and the bottom end of the flexible net are connected with sealing edge plates, the buffer mechanism is an outer sleeve arranged outside the flexible net, the outer sleeve is a circular groove plate, the outer sleeve is tightly attached to the inner wall of the sealing edge plate and connected to the outer wall of the rubber sleeve, and the two ends of the outer sleeve are respectively connected with extrusion edges which are attached to the outer wall of the sealing edge plate.

[0021] As preferred, the strength of the rubber sleeve can be improved, the rubber sleeve is protected by the outer sleeve and the flexible net when the rubber sleeve is impacted, the impact is buffered, the outer sleeve can further protect when punctured, and the flexible net can block the punctured structure to reduce further damage to the rubber sleeve.

[0022] In summary, the present application mainly has the following advantages:

[0023] 1、The rubber sleeve, the locking ring and the top disc are arranged, in the use process, the rubber sleeve is first sleeved outside the ball pin column, then the bottom end of the rubber sleeve is fixed and limited by rotating the locking ring, then the bottom end outside of the rubber sleeve is fixed and limited by the locking ring, the top disc is fixed outside the ball pin column, the sealing ring is inserted into the sealing ring by the clasp, and the top end of the rubber sleeve is further sealed, so that the sealing effect is improved.

[0024] 2、The rubber sleeve and the support net are arranged, the support net is arranged inside the structure, the rubber sleeve is strengthened as a whole, the strength of the rubber sleeve is improved, the impact can be effectively buffered when the external impact occurs, and the damage to the ball pin column is reduced.

[0025] 3、The rubber sleeve and the single-layer sleeve on the inner side can play a buffering role when the rubber sleeve is impacted by a sharp object and is punctured, and the single-layer sleeve can provide a one-time sealing effect from the inside, so that the rubber sleeve can be temporarily used normally and the damage to the ball pin column is reduced.

[0026] 4、The rubber sleeve, the outer sleeve, and the flexible net are arranged on the outer side of the rubber sleeve, and the outer sleeve forms a cavity on the outer side, so that the outer sleeve can be replaced conveniently when it is damaged, and the flexible net protects the outer sleeve and reduces the deformation of the flexible net. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of the present application;

[0028] Figure 2 is a structural schematic diagram of the rubber sleeve of the present application;

[0029] Figure 3 is a structural schematic diagram of the rubber sleeve profile of the present application;

[0030] Figure 4 is a structural schematic diagram of the ball hinge profile of the present application;

[0031] Figure 5 is a structural schematic diagram of the ball hinge profile of the present application; Figure 4 is a structural schematic diagram of the ball hinge profile of the present application;

[0032] Figure 6 is a structural schematic diagram of the top disc of the present application;

[0033] Figure 7 is a structural schematic diagram of the ball hinge profile of the second embodiment of the present application;

[0034] Figure 8 is a structural schematic diagram of the third embodiment of the present application;

[0035] Figure 9 is a structural schematic diagram of the outer sleeve profile of the third embodiment of the present application;

[0036] Figure 10 is a structural schematic diagram of the ball hinge profile of the third embodiment of the present application;

[0037] Figure 11 is a structural schematic diagram of the ball hinge profile of the present application; Figure 10 is a structural schematic diagram of the ball hinge profile of the present application;

[0038] Figure 12 is an exploded structural schematic diagram of the third embodiment of the present application.

[0039] REFERENCE SIGNS

[0040] 1, ball pin column; 101, fixed rod; 102, ball pin; 2, ball pin sleeve; 201, lubricating cavity; 202, sealing edge; 3, rubber sleeve; 301, threaded ring; 302, upper sleeve; 303, sealing ring; 304, positioning ring; 305, upper single-layer sleeve; 306, lower single-layer sleeve; 307, outer sleeve; 308, extrusion edge; 4, locking ring; 5, top plate; 501, snap ring; 6, sealing ring; 7, support net; 701, first guide ring; 8, flexible net; 801, second guide ring; 802, sealing edge plate. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and are used only to explain the present application, and cannot be understood as a limitation of the present application.

[0042] The embodiments of the present application will be described below according to the overall structure of the present application.

[0043] First embodiment: a bidirectional sealing automobile ball hinge assembly, comprising a ball pin column 1 and a ball pin sleeve 2, the top end of the ball pin column 1 is connected with a fixed rod 101, and the center of the fixed rod 101 is provided with a groove, the bottom end of the ball pin column 1 is connected with a ball pin 102, the ball pin column 1 is rotationally connected with the ball pin sleeve 2 through the ball pin 102, the inside of the ball pin sleeve 2 is provided with a lubricating cavity 201, the lubricating cavity 201 is filled with lubricating oil, and the ball pin 102 is rotationally connected with the lubricating cavity 201, the top end of the ball pin sleeve 2 is connected with a sealing edge 202, the inside of the sealing edge 202 is installed with a sealing ring 6, and the sealing edge 202 is fixed after being bent, which can facilitate the rotation of the ball pin 102 in the lubricating cavity 201, thereby facilitating the adjustment of the angle of the ball hinge and facilitating the connection at multiple angles.

[0044] Please refer to Figures 1 to 6The outer side of the connecting position of the ball pin column 1 and the ball pin sleeve 2 is sleeved with a rubber sleeve 3, the bottom end of the rubber sleeve 3 is connected with a threaded ring 301, the top end of the rubber sleeve 3 is connected with an upper sleeve 302, the inner wall of the upper sleeve 302 is attached to the outer wall of the ball pin column 1, a plurality of sealing rings 303 are arranged at the top end of the upper sleeve 302, the outer wall of the ball pin sleeve 2 is threadedly connected with a locking ring 4, the outer wall of the ball pin sleeve 2 is provided with threads, the locking ring 4 is rotationally connected with the ball pin sleeve 2 through threads, the threaded ring 301 is located directly above the threads of the outer wall of the ball pin sleeve 2, and the threaded ring 301 is flush with the threads, the threaded ring 301 is fixedly connected with the ball pin sleeve 2 through the locking ring 4, the locking ring 4 is fixed with the rubber sleeve 3 through the threaded ring 301, the outer side of the ball pin column 1 is sleeved with a top disc 5, the bottom end of the top disc 5 is connected with a clamping ring 501, the top disc 5 is clamped and connected with the sealing ring 303 through the clamping ring 501, which can conveniently extrude and limit the downward movement of the rubber sleeve 3, improve the sealing effect of the rubber sleeve 3, and limit the rubber sleeve 3 to reduce the deviation of the rubber sleeve 3, and the inside of the rubber sleeve 3 is provided with a support net 7, the outer wall of the support net 7 is tightly attached to the inner wall of the rubber sleeve 3, a first guide ring 701 is arranged in the middle of the support net 7 and located above the sealing edge 202, and the inside of the rubber sleeve 3 is supported by the support net 7 to reduce the deformation of the rubber sleeve 3 caused by impact.

[0045] Second embodiment: please refer to Figure 7 The second embodiment of the application is different from the first embodiment 1 in that the internal structure of the rubber sleeve 3 is different, and the specific difference is that an upper single-layer sleeve 305 and a lower single-layer sleeve 306 are arranged in the inside of the rubber sleeve 3, the upper single-layer sleeve 305 is located at the top end of the inner wall of the rubber sleeve 3 and is aligned with the folding position of the rubber sleeve 3, and the lower single-layer sleeve 306 is located above the ball pin sleeve 2 and is attached to the top outer wall of the ball pin sleeve 2. In this embodiment, the support net 7 structure is cancelled, and the upper single-layer sleeve 305 and the lower single-layer sleeve 306 are arranged in the inside in a double-layer manner, which can effectively improve the flexibility of the rubber sleeve 3, facilitate the rotation of the ball hinge, and ensure a certain sealing effect of the rubber sleeve to a certain extent when the rubber sleeve 3 is broken by arranging the upper single-layer sleeve 305 and the lower single-layer sleeve.

[0046] Third embodiment: please refer to Figures 8 to 12For the third embodiment of the present application, the difference from the above two embodiments is the difference between the buffer structure and the support structure. Specifically, the outer side of the rubber sleeve 3 is connected with a flexible net 8, two groups of second guide rings 801 are symmetrically installed in the middle of the flexible net 8, the top end and the bottom end of the flexible net 8 are both connected with sealing edge plates 802, and an outer sleeve 307 is installed on the outer side of the flexible net 8. The outer sleeve 307 is a circular groove plate, the inner wall of the outer sleeve 307 is tightly attached to the outer wall of the sealing edge plate 802 and connected with the outer wall of the rubber sleeve 3, and the two ends of the outer sleeve 307 are respectively connected with extrusion edges 308 which are attached to the outer wall of the sealing edge plate 802. In this way, the buffer structure and the support structure can be installed on the outer side of the rubber sleeve 3, and they are modular structures with the rubber sleeve 3, which can facilitate production. During installation, the flexible net 8 is attached to the outer side of the rubber sleeve 3, and then the outer sleeve 307 is fixed on the outer side of the flexible net 8, thereby forming a cavity and a support structure at the same time. When an impact occurs, the outer sleeve 307 can first absorb the impact, and then the impact is transmitted to the flexible net 8, which absorbs the impact, thereby reducing damage to the rubber sleeve 3 itself. If it is necessary to replace the flexible net 8 or the outer sleeve 307, a spatula is used to scrape the connection position between the sealing edge plate 802 and the extrusion edge 308, thereby separating the outer sleeve 307 and the flexible net 8. Then, the outer sleeve 307 can be disassembled and replaced (when fixed, the inside of the extrusion edge 308 is heated and melted by heating, and then attached to the sealing edge plate 802. The extrusion edge 308 is pressed, and the sealing edge plate 802 and the flexible net 8 have the same structure, which is a mesh structure, so that the molten material of the extrusion edge 308 passes through the mesh holes of the sealing edge plate 802 and is tightly attached to the outer wall of the rubber sleeve 3).

[0047] When installing the ball hinge, first, lubricating oil is injected into the lubricating cavity 201, then the ball pin 102 is inserted into the ball pin sleeve 2, then the sealing ring 6 is covered above the ball pin 102, and the sealing edge 202 is extruded by the external edge rolling device, so that the sealing edge 202 is completely fixed outside the sealing ring 6, the installation of the ball pin 102 is realized, then the locking ring 4 is fixed outside the ball pin sleeve 2, and then the sealing member is installed outside the ball pin column 1, at this time, the rubber sleeve 3 is sleeved outside the ball pin column 1, the threaded ring 301 is sleeved outside the ball pin sleeve 2, and the bottom end of the threaded ring 301 is aligned with the top end of the locking ring 4, then the top disc 5 is sleeved outside the ball pin column 1, the clamping ring 501 is attached to the sealing ring 303, then the top disc 5 is rotated, the top disc 5 is fixedly connected with the ball pin column 1 through the threads on the inner wall, and is synchronously moved downward, so that the clamping ring 501 is inserted into the sealing ring 303, further sealing is performed, and the sealing effect is improved, when the top disc 5 is fixed, the locking ring 4 is rotated, the locking ring 4 moves upward, the threads on the inner wall of the locking ring 4 are attached to the threaded ring 301, so that part of the bottom end of the rubber sleeve 3 is also limited and clamped, the fixing effect is improved, the fixing of the rubber sleeve 3 is completed, and after the fixing, the two ends of the rubber sleeve 3 are sealed and fixed by the locking ring 4 and the top disc 5, which can effectively prevent the rubber sleeve 3 from falling off due to inactivation after long-term use, and effectively improve the installation effect.

[0048] In use, if angle adjustment is needed, the angle of the ball pin column 1 can be rotated to drive the ball pin 102 to rotate in the ball pin sleeve 2, so that the structure of the supporting structure is bent and deformed, the stability of angle adjustment is improved, the extrusion of the supporting structure on the rubber sleeve 3 is reduced, and the damage of the rubber sleeve 3 is reduced.

[0049] When the rubber sleeve 3 needs to be replaced, the top disc 5 is rotated to release the limiting of the rubber sleeve 3, then the locking ring 4 is rotated, the locking ring 4 moves downward to release the limiting of the rubber sleeve 3 below, so that the rubber sleeve 3 can be removed from the ball pin column 1.

[0050] Although the embodiments of the present application have been shown and described, the specific embodiments are merely exemplary and are not to be construed as limiting the present application, and the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations to the embodiments without creative contribution after reading the specification, and as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A bidirectional sealed automotive ball joint assembly comprising a ball stud (1) and a ball cup (2), and the ball stud (1) and the ball cup (2) are rotatably connected, characterized in that: The outer side of the connecting position of the ball pin column (1) and the ball pin sleeve (2) is sleeved with a rubber sleeve (3), the outer side of the bottom end of the rubber sleeve (3) is connected with a threaded ring (301), the top end of the rubber sleeve (3) is connected with an upper sleeve (302), a plurality of sealing rings (303) are arranged on the top end of the upper sleeve (302), the outer wall of the ball pin sleeve (2) is threadedly connected with a locking ring (4), the locking ring (4) is fixed with the rubber sleeve (3) through the threaded ring (301), the outer side of the ball pin column (1) is sleeved with a top disc (5), the bottom end of the top disc (5) is tightly attached to the sealing ring (303), and the rubber sleeve (3) is provided with a buffering structure and a supporting structure. The supporting structure is that a flexible net (8) is connected to the outer side of the rubber sleeve (3), two groups of second guide rings (801) are symmetrically arranged in the middle of the flexible net (8), and the top end and the bottom end of the flexible net (8) are connected with sealing edge plates (802), and the buffering mechanism is an outer sleeve (307) arranged on the outer side of the flexible net (8), the outer sleeve (307) is a circular groove plate, the outer sleeve (307) is tightly attached to the outer wall of the sealing edge plate (802) through the inner wall and is connected to the outer wall of the rubber sleeve (3), and the two ends of the outer sleeve (307) are respectively connected with extrusion edges (308) which are attached to the outer wall of the sealing edge plate (802).

2. A bi-directionally sealed automotive ball joint assembly as defined in claim 1, wherein: The top end of the ball pin column (1) is connected with a fixed rod (101), a groove is arranged in the center of the fixed rod (101), and the bottom end of the ball pin column (1) is connected with a ball pin (102), the ball pin column (1) is rotationally connected with the ball pin sleeve (2) through the ball pin (102).

3. A bi-directionally sealed automotive ball joint assembly as defined in claim 2, wherein: The inside of the ball pin sleeve (2) is provided with a lubricating cavity (201), the lubricating cavity (201) is filled with lubricating oil, and the ball pin (102) is rotationally connected with the lubricating cavity (201), the top end of the ball pin sleeve (2) is connected with an edge seal (202), the inner side of the edge seal (202) is provided with a sealing ring (6), and the edge seal (202) is fixed to the sealing ring (6) after being bent.

4. A bi-directionally sealed automotive ball joint assembly as defined in claim 1, wherein: The inner wall of the upper sleeve (302) is attached to the outer wall of the ball pin column (1), a plurality of sealing rings (303) are arranged on the top end of the upper sleeve (302), the bottom end of the top disc (5) is connected with a clamping ring (501), and the top disc (5) is clamped and connected with the sealing ring (303) through the clamping ring (501).

5. A bi-directionally sealed automotive ball joint assembly as defined in claim 1, wherein: The outer wall of the ball pin sleeve (2) is provided with threads, the locking ring (4) is rotationally connected with the ball pin sleeve (2) through the threads, the threaded ring (301) is located directly above the threads of the outer wall of the ball pin sleeve (2), and the threaded ring (301) is flush with the threads, and the threaded ring (301) is fixedly connected with the ball pin sleeve (2) through the locking ring (4).

6. A bi-directionally sealed automotive ball joint assembly as defined in claim 1, wherein: The supporting structure is that a supporting net (7) is arranged in the inside of the rubber sleeve (3), the outer wall of the supporting net (7) is tightly attached to the inner wall of the rubber sleeve (3), and a first guide ring (701) is arranged in the middle of the supporting net (7) and located above the edge seal (202).

7. A bi-directionally sealed automotive ball joint assembly as defined in claim 1, wherein: The buffer structure is internally provided with an upper single-layer sleeve (305) and a lower single-layer sleeve (306), the upper single-layer sleeve (305) is located at the top end of the inner wall of the rubber sleeve (3), and the upper single-layer sleeve (305) is aligned with the folding angle position of the rubber sleeve (3), and the lower single-layer sleeve (306) is located above the ball pin sleeve (2) and is attached to the top end of the outer wall of the ball pin sleeve (2).

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