Spherical hinge structure capable of conveniently adjusting torque

Abstract

The utility model provides a spherical hinge structure convenient to adjust torque, and relates to the technical field of automobile spherical hinge design, the spherical hinge structure comprises a ball pin body, a ball pin seat, a ball pin sleeve and a bottom plate, a ball head of the ball pin body is arranged in the ball pin seat, the ball pin seat is arranged in a hollow cavity of the ball pin sleeve, and the bottom plate is arranged at the bottom of a hollow inner cavity of the ball pin sleeve; a sleeving part is arranged at the top of the bottom plate, an inserting part is arranged on the inner side of the bottom of the ball pin sleeve, and the sleeving part is arranged outside the inserting part in a sleeving mode and is in threaded connection with the inserting part; sealing rings are arranged on the side wall of the inserting part and the outer side of the bottom of the ball pin sleeve, and the sleeving part abuts against the two sealing rings at the same time when being in threaded connection with the inserting part. The bottom plate is in threaded connection with the ball pin sleeve, the moment of the spherical hinge is adjusted by rotating the bottom plate after connection, the sealing requirement can be met, and the qualified rate of products is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile ball hinge design, specifically, a ball hinge structure convenient for torque adjustment. BACKGROUND

[0002] The bottom plate of the ball hinge structure is usually fixed with the ball pin sleeve in a riveting packaging mode to realize the positioning of the ball pin sleeve, the bottom plate abuts against the ball pin seat after riveting, the contact stress between the ball pin seat and the ball pin body is fixed, and the torque of the ball hinge structure is determined. However, due to the riveting quality after riveting, the torque of the ball hinge structure is high or low and cannot be adjusted, the bottom plate is not sealed well when riveting is not in place, and the torque of the ball hinge structure is increased when riveting is excessive. UTILITY MODEL CONTENTS

[0003] The utility model discloses a ball hinge structure convenient for torque adjustment, which connects the bottom plate with the ball pin sleeve in a threaded connection mode, adjusts the torque of the ball hinge by rotating the bottom plate after connection, and meets the sealing requirements to ensure the qualified rate of products.

[0004] The utility model discloses the following technical scheme realizes: a ball hinge structure convenient for torque adjustment, including ball pin body, ball pin seat, ball pin sleeve and bottom plate, the ball head of ball pin body is located in ball pin seat, ball pin seat sets up in the hollow cavity of ball pin sleeve, the bottom plate sets up in the bottom of the hollow inner chamber of ball pin sleeve, the top of bottom plate is equipped with the sleeve joint, the bottom inboard of ball pin sleeve is provided with the insertion part, the sleeve joint is set in the outside of insertion part and is connected with insertion part threadedly, the lateral wall of insertion part and the bottom outside of ball pin sleeve all are provided with sealing ring, when the sleeve joint is connected to insertion part, two sealing rings are abutted to simultaneously.

[0005] Further, the lateral wall of the insertion part and the bottom outside of the ball pin sleeve are both provided with a sealing groove for placing the sealing ring, and the thickness of the sealing ring is greater than the depth of the sealing groove.

[0006] Further, when the sleeve joint is inserted into the insertion part and abuts against the sealing ring, there is a gap between the bottom surface of the insertion part and the bottom plate.

[0007] Further, the inner circumferential surface of the sleeve joint is provided with an arc chamfer.

[0008] Further, the inner circumferential surface of the sleeve joint includes a threaded segment and a straight segment, and the surface roughness Ra of the straight segment is less than 0.4 μm.

[0009] Further, the inner diameter of the straight segment is greater than the inner diameter of the threaded segment.

[0010] Further, the bottom plate and the sleeve joint are both metal pieces.

[0011] Further, the bottom plate and the sleeve part are integrally formed.

[0012] The technical scheme of the utility model has at least the following advantages and beneficial effects:

[0013] 1. The utility model discloses a bottom plate is connected with the ball pin sleeve in the form of screw connection, and the ball hinge torque is adjusted by rotating the bottom plate after connection, which avoids riveting out of position or riveting too much caused by riveting packaging mode, and guarantees the qualified rate of products.

[0014] 2. The utility model discloses that the seal groove is set up on the lateral wall of the insertion part and the bottom outside of the ball pin sleeve, and the sealing ring is arranged in each seal groove, so that the sealing effect is improved, and the ball hinge torque can meet the sealing requirement after adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic view of the utility model;

[0016] Figure 2 It is the A part enlarged view of Figure 1

[0017] The sign: 1 - ball pin body, 2 - ball pin seat, 3 - ball pin sleeve, 31 - insertion part, 32 - seal groove, 4 - bottom plate, 41 - sleeve part, 411 - arc chamfer, 412 - threaded section, 413 - straight section, 5 - sealing ring. DETAILED DESCRIPTION

[0018] To make the purpose, technical scheme and advantage of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be described clearly and completely in the following with the drawings in the utility model embodiment, and obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. The components of the utility model embodiment described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiment in the utility model, all other embodiments obtained by ordinary skilled persons in the art without creative labor belong to the scope of protection of the utility model.

[0020] Embodiment 1

[0021] The following is further illustrated in conjunction with specific embodiments, and the embodiment provides a ball hinge structure convenient for torque adjustment, referring to Figure 1 ​As shown, the device includes a ball pin body 1, a ball pin seat 2, a ball pin sleeve 3, and a base plate 4. The ball head of the ball pin body 1 is located inside the ball pin seat 2. The ball pin seat 2 is located inside the hollow cavity of the ball pin sleeve 3. The base plate 4 is located at the bottom of the hollow inner cavity of the ball pin sleeve 3 and abuts against the bottom of the ball pin seat 2. A sleeve portion 41 is provided circumferentially on the top of the base plate 4. The base plate 4 and the sleeve portion 41 are both metal parts and are integrally formed. An insertion portion 31 is provided on the inner side of the bottom of the ball pin sleeve 3. The sleeve portion 41 is sleeved on the outside of the insertion portion 31 and is threadedly connected to the insertion portion 31. After the ball pin seat 2 is installed into the ball pin sleeve 3, the sleeve portion 41 of the base plate 4 is fitted onto the insertion portion 31 of the ball pin sleeve 3. By rotating the base plate 4, the relative position of the sleeve portion 41 and the insertion portion 31 is changed. The base plate 4 is rotated to a designated position so that the bottom surface of the base plate 4 abuts against the ball pin seat 2, and the contact stress between the ball pin sleeve 3 and the ball pin seat 2 is within an appropriate range. Compared with fixing the base plate 4 to the ball pin sleeve 3 by riveting, this avoids gaps between the ball pin sleeve 3 and the ball pin seat 2 or an increase in the torque of the ball joint structure due to inadequate or excessive riveting.

[0022] Reference Figure 1 , Figure 2 As shown, both the side wall of the insertion part 31 and the outer bottom of the ball pin sleeve 3 are provided with sealing grooves 32 for placing the sealing rings 5. A sealing ring 5 is installed in each of the two sealing grooves 32. The dimensions of the sealing grooves 32 and the sealing rings 5 ​​match, ensuring that the sealing rings 5 ​​will not slip out of the sealing grooves 32 after being placed inside. The thickness of the sealing rings 5 ​​is greater than the depth of the sealing grooves 32, therefore, part of the sealing rings 5 ​​is located outside the sealing grooves 32. When the sleeve part 41 is threaded into the designated position of the insertion part 31, the sleeve part 41 simultaneously abuts against both sealing rings 5. The two sealing rings 5 ​​provide axial and radial double sealing at different connection points to improve the waterproof capability of the ball joint structure and prevent rainwater from entering the ball joint structure and affecting its service life when vehicles pass through rainy areas.

[0023] Reference Figure 2 As shown, the inner circumferential surface of the socket 41 is provided with an arc-shaped chamfer 411 to prevent the socket 41 from scratching the sealing ring 5 on the side wall of the insertion part 31 when it passes through it. When the socket 41 is inserted into the insertion part 31 and the top surface of the socket 41 abuts against the sealing ring 5, there is a gap between the bottom surface of the insertion part 31 and the base plate 4 to ensure that the top of the socket 41 will not fail to reach the designated installation position due to contact between the insertion part 31 and the base plate 4 during the insertion process.

[0024] Furthermore, the inner circumferential surface of the socket 41 includes a threaded section 412 and a straight section 413. The inner diameter of the straight section 413 is larger than the inner diameter of the threaded section 412 to ensure that the straight section 413 can pass through the thread on the insertion part 31, and then the threaded section 412 contacts and tightens with the thread on the insertion part 31. The surface roughness Ra of the straight section 413 is less than 0.4 μm so that the straight section 413 can smoothly pass through the sealing ring 5 on the side wall of the insertion part 31.

[0025] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A ball joint structure for facilitating adjustment of torque, characterized by, The application relates to a ball pin assembly, which comprises a ball pin body (1), a ball pin seat (2), a ball pin sleeve (3) and a bottom plate (4), wherein the ball head of the ball pin body (1) is arranged in the ball pin seat (2), the ball pin seat (2) is arranged in the hollow cavity of the ball pin sleeve (3), and the bottom plate (4) is arranged at the bottom of the hollow inner cavity of the ball pin sleeve (3). The top of the bottom plate (4) is provided with a sleeving part (41), the bottom inner side of the ball pin sleeve (3) is provided with a plug-in part (31), the sleeving part (41) is sleeved on the outside of the plug-in part (31) and is in threaded connection with the plug-in part (31). The side wall of the plug-in part (31) and the bottom outer side of the ball pin sleeve (3) are both provided with sealing rings (5), and the sleeving part (41) is in abutment with the two sealing rings (5) when being in threaded connection with the plug-in part (31).

2. The ball hinge structure according to claim 1, wherein The side wall of the plug-in part (31) and the bottom outer side of the ball pin sleeve (3) are both provided with sealing grooves (32) for placing the sealing rings (5), and the thickness of the sealing ring (5) is greater than the depth of the sealing groove (32).

3. The ball joint structure according to claim 1 or 2, wherein When the sleeving part (41) is sleeved into the plug-in part (31) and is in abutment with the sealing ring (5), the bottom surface of the plug-in part (31) has a gap with the bottom plate (4).

4. The ball hinge structure for easily adjusting a torque according to claim 1, wherein The inner circumferential surface of the sleeving part (41) is provided with an arc-shaped chamfer (411).

5. The ball hinge structure for easily adjusting a torque according to claim 1, wherein The inner circumferential surface of the sleeving part (41) comprises a threaded section (412) and a flat section (413), and the surface roughness Ra of the flat section (413) is less than 0.4 mu m.

6. The ball joint structure according to claim 5, wherein The inner diameter of the flat section (413) is greater than that of the threaded section (412).

7. The ball hinge structure for easily adjusting a torque according to claim 1, wherein The bottom plate (4) and the sleeving part (41) are metal parts.

8. The ball joint structure according to claim 7, wherein The bottom plate (4) and the sleeving part (41) are integrally formed.

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