Tail door hinge limiting mechanism and automobile

Abstract

The tail door hinge limiting mechanism comprises a hinge fixing arm, a hinge rotating arm and a limiting device, the hinge fixing arm is provided with a rotating shaft, the hinge rotating arm is provided with a rotating shaft sleeve, the rotating shaft sleeve is arranged outside the rotating shaft in a sleeving mode, a limiting groove is formed in the side face of the rotating shaft, and the limiting device comprises a spring pointing to the rotating shaft and a clamping block. One end of the spring is fixedly arranged, the other end of the spring is connected with one end of the clamping block, the other end of the clamping block makes contact with the side wall of the rotating shaft, and the clamping block sinks into the limiting groove to generate large limiting force in the rotating process of the rotating shaft. The clamping blocks make contact with the side wall of the rotating shaft, the clamping blocks sink into the limiting grooves in the rotating process of the rotating shaft so as to generate large resistance for limiting, and multi-angle limiting can be achieved by setting the multiple limiting grooves and the angles of the limiting grooves.

Description

Technical Field

[0001] The present application relates to the automotive field, and in particular to a tailgate hinge limiting mechanism and an automobile. Background Art

[0002] The tailgate hinge is usually limited when the tailgate is opened to the maximum position. To maintain the tailgate opening angle of 90°, a tailgate limiter needs to be added for limiting. Independent tailgate limiter parts are large and require a large layout space. When the tailgate opens to 180°, the independent tailgate limiter is easy to interfere with surrounding parts. In general, it is necessary to add a magnetic block limiter when the tailgate opens to 270°, which is costly and requires a large space. Utility Model Content

[0003] The present application provides a tailgate hinge limiting mechanism, which can achieve limiting at multiple angles simultaneously.

[0004] A tailgate hinge limiting mechanism comprises a hinge fixing arm, a hinge rotating arm and a limiting device, wherein the hinge fixing arm has a rotating shaft, the hinge rotating arm has a rotating shaft sleeve, the rotating shaft sleeve is sleeved outside the rotating shaft, and the limiting device is arranged between the rotating shaft and the rotating shaft sleeve, wherein a plurality of limiting grooves are arranged on the side surface of the rotating shaft, and the limiting device comprises a spring and a clamping block pointing to the rotating shaft, one end of the spring is fixedly arranged, the other end of the spring is connected to one end of the clamping block, and the other end of the clamping block can be slidably pressed against the limiting groove or the side wall of the rotating shaft along the circumferential direction of the rotating shaft.

[0005] Furthermore, the limiting device also includes a clamping block, the clamping block, the spring and the clamping block are connected in sequence along a straight line, a limiting hole is provided on the rotating sleeve, a part of the clamping block, the spring and a part of the clamping block can be movably arranged in the limiting hole.

[0006] Furthermore, the limiting hole passes through the side wall of the rotating sleeve, the clamping block includes a guide column, a threaded connecting column and a nut, the guide column, the threaded connecting column and the nut are connected in sequence, the spring sleeve is arranged outside the guide column, one end of the spring is against the threaded connecting column, the threaded connecting column is threadedly connected to the through hole, and the nut is arranged outside the rotating sleeve.

[0007] Furthermore, the nut is provided with a cross or a straight flower for rotating the nut.

[0008] Furthermore, the hinge rotating arm also has a door fixing portion, the rotating shaft sleeve is connected to the door fixing portion, and the spring and the clamping block are arranged perpendicular to the door fixing portion.

[0009] Furthermore, the hinge fixing arm also has a vehicle body fixing portion, the rotating shaft is connected to the vehicle body fixing portion, and a set angle is formed between the limiting groove and the vehicle body fixing portion.

[0010] Furthermore, the number of the limiting grooves is two, one of the limiting grooves is set as a 90° limiting groove toward the vehicle body fixing portion, and the other limiting groove is set as a 270° limiting groove opposite to the vehicle body fixing portion.

[0011] Furthermore, the rotating shaft sleeve is arranged to protrude from the door fixing portion, a depression is provided on the vehicle body fixing portion, the rotating shaft is arranged in the depression, and the rotating shaft sleeve and the depression are matched.

[0012] Furthermore, the other end of the clamping block is in an arc shape.

[0013] A car comprises the above-mentioned tailgate hinge limiting mechanism, wherein the hinge fixing arm is fixedly arranged on the car body, and the hinge rotating arm is fixedly arranged on the car door.

[0014] The clamping block of the utility model contacts the side wall of the rotating shaft, and the clamping block sinks into the limiting groove to generate greater resistance for limiting during the rotation of the rotating shaft. Multi-angle limiting can be achieved by setting multiple limiting grooves and the angles of the limiting grooves. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the unrestricted state of the tailgate hinge limiting mechanism.

[0016] Figure 2 It is a schematic diagram of the limiting state of the tailgate hinge limiting mechanism.

[0017] Figure 3 yes Figure 2 Magnified image of .

[0018] Explanation of the accompanying drawings: 1. Hinge fixing arm; 2. Hinge rotating arm; 3. Limiting device; 11. Rotating axis; 12. 90° limiting groove; 13. 270° limiting groove; 14. Vehicle body fixing part; 21. Rotating shaft sleeve; 22. Limiting hole; 23. Door fixing part; 31. Block; 32. Spring; 33. Pressing block; 331. Guide column; 332. Threaded connecting column; 333. Nut. DETAILED DESCRIPTION

[0019] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0020] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantitative limit, but indicate that there is at least one. "Multiple" or "several" means two or more. Unless otherwise specified, words such as "front", "rear", "lower" and / or "upper" are only for the convenience of explanation and are not limited to one position or one spatial orientation. Words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect. The singular forms "a", "said" and "the" used in this specification and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0021] See also Figure 1 to Figure 2 As shown, a tailgate hinge limiting mechanism comprises a hinge fixing arm 1, a hinge rotating arm 2 and a limiting device 3, wherein the hinge fixing arm 1 has a rotating shaft 11, the hinge rotating arm 2 has a rotating shaft sleeve 21, the rotating shaft sleeve 21 is sleeved outside the rotating shaft 11, the hinge fixing arm 1 is fixedly arranged on the vehicle body, the hinge rotating arm 2 is arranged on the vehicle door, specifically on the tailgate, the hinge rotating arm 2 can rotate around the rotating shaft 11, wherein a limiting groove is arranged on the side surface of the rotating shaft 11, the limiting device 3 comprises a spring 32 and a clamping block 31, the clamping block 31 is against the side wall of the rotating shaft 11 to form contact, and during the rotation of the rotating shaft 11, the clamping block 31 is sunk into the limiting groove to generate resistance for limiting.

[0022] The hinge rotating arm 2 also has a door fixing part 23, the rotating shaft sleeve 21 is connected to the door fixing part 23, the spring 32 and the block 31 are arranged perpendicular to the door fixing part 23, the hinge fixing arm 1 also has a body fixing part 14, the rotating shaft 11 is connected to the body fixing part 14, and there is a set angle between the limit groove and the body fixing part 14. The angle is set specifically according to needs, so that the hinge rotating arm 2 can be limited at different angles during the rotation of the hinge fixing arm 1.

[0023] Specifically, there are two limit grooves, one limit groove is set as a 90° limit groove 12 facing the body fixing portion 14, and the other limit groove is set as a 270° limit groove 13 opposite to the body fixing portion 14. Since the spring 32 and the clamping block 31 are arranged perpendicular to the door fixing portion 23, when the door is rotated to the limit groove facing the body fixing portion 14, it just rotates 90°. Figure 2 As shown, the tailgate requires a certain shift force to make the block 31 slide out of the limit groove, and the hinge rotating arm 2 can continue to rotate relative to the hinge fixed arm 1. When it rotates to the limit groove opposite to the vehicle body fixing part 14, it just rotates 270 degrees, and the same shift force is required for the hinge rotating arm 2 to continue to rotate relative to the hinge fixed arm 1, thereby forming limits at 90 degrees and 270 degrees, so that the door can be kept in the above positions.

[0024] The limiting device 3 also includes a clamping block 33. The clamping block 33, the spring 32 and the clamping block 31 are connected in sequence along a straight line. A limiting hole 22 is provided on the rotating sleeve 21. The limiting hole 22 passes through the side wall of the rotating sleeve 21. The clamping block 33 is movably arranged in the limiting hole 22.

[0025] Preferably, a slide rail is provided in the limiting hole 22, and the slide rail is opened along the length direction of the spring 32. One side of the slide rail is provided with multiple locking grooves along the extension direction of the slide groove. A slider is provided on the clamping block 33, and the slider slides along the slide rail to realize the movement of the clamping block 33 in the limiting hole 22. By rotating the clamping block 33, the slider can be embedded in the locking groove to be fixed, and the fixed locking groove can be selected according to the situation.

[0026] See also Figure 3 As shown, more preferably, the clamping block 33 and the limiting hole 22 are threadedly connected, the clamping block 33 is provided with an external thread, and the limiting hole 22 is provided with an internal thread matching the external thread. The clamping block 33 is screwed in or out by means of a threaded connection to control the pressure between the clamping block 31 and the rotating shaft 11.

[0027] The clamping block 33 includes a guide column 331, a threaded connection column 332 and a nut 333, which are connected in sequence. The spring 32 is sleeved outside the guide column 331, one end of the spring 32 rests on the threaded connection column 332, the threaded connection column 332 is threadedly connected to the through hole, and the nut 333 is arranged outside the rotating sleeve 21.

[0028] In a preferred embodiment, the nut 333 is provided with a cross or a straight line for rotating the nut 333; in another preferred embodiment, the nut 333 is an internal hexagon or an external hexagon, and the rotation of the nut 333 can be achieved by an internal hexagon or a wrench.

[0029] Furthermore, the rotating shaft sleeve 21 is arranged to protrude from the door fixing portion 23, and a depression is provided on the body fixing portion 14. The rotating shaft 11 is arranged in the depression, and the rotating shaft sleeve 21 and the depression fit together. In this way, a rotation matching space is reserved between the body fixing portion 14 and the door fixing portion 23 through the concave-convex relationship, thereby preventing interference during rotation and saving space at the same time.

[0030] The present application sets a single tailgate hinge limit mechanism to achieve multi-angle limit, and through the assembly in a life-like fit manner, there is no situation where they conflict with each other at 180°, so there is no need to set a separate tailgate limiter.

[0031] Furthermore, the other end of the clamping block 31 is in an arc shape, which facilitates its sliding contact with the rotating shaft 11 and also facilitates it to slide out of the limiting groove after being subjected to force.

[0032] Furthermore, the clamping block 31 is made of elastic material to increase friction.

[0033] A car, the above-mentioned tailgate hinge limiting mechanism, wherein the hinge fixing arm 1 is fixedly arranged on the car body, and the hinge rotating arm 2 is fixedly arranged on the car door.

[0034] The above is only a preferred implementation mode of the present application, and does not constitute any form of limitation to the present application. Although the present application has been disclosed as a preferred implementation mode as above, it is not used to limit the present application. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent implementation modes without departing from the scope of the technical solution of the present application. However, any simple modification, equivalent change and modification made to the above implementation modes based on the technical essence of the present application without departing from the content of the technical solution of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A tailgate hinge limiting mechanism, comprising a hinge fixing arm, a hinge rotating arm and a limiting device, wherein the hinge fixing arm has a rotating shaft, the hinge rotating arm has a rotating shaft sleeve, the rotating shaft sleeve is sleeved outside the rotating shaft, and the limiting device is arranged between the rotating shaft and the rotating shaft sleeve, characterized in that: A plurality of limit grooves are provided on the side surface of the rotating shaft, and the limit device includes a spring and a block pointing to the rotating shaft, one end of the spring is fixedly arranged, the other end of the spring is connected to one end of the block, and the other end of the block can be slidably pressed against the limit groove or the side wall of the rotating shaft along the circumferential direction of the rotating shaft.

2. The tailgate hinge limiting mechanism according to claim 1, characterized in that: The limiting device also includes a clamping block, which is connected in sequence along a straight line with the clamping block, the spring and the clamping block. A limiting hole is provided on the rotating sleeve, and a part of the clamping block, the spring and a part of the clamping block can be movably arranged in the limiting hole.

3. The tailgate hinge limiting mechanism according to claim 2, characterized in that: The limiting hole passes through the side wall of the rotating sleeve, and the clamping block includes a guide column, a threaded connecting column and a nut. The guide column, the threaded connecting column and the nut are connected in sequence. The spring sleeve is arranged outside the guide column, one end of the spring is against the threaded connecting column, the threaded connecting column is threadedly connected to the through hole, and the nut is arranged outside the rotating sleeve.

4. The tailgate hinge limiting mechanism according to claim 3, characterized in that: The nut is provided with a cross or a straight line for rotating the nut.

5. The tailgate hinge limiting mechanism according to claim 1, characterized in that: The hinge rotating arm also has a door fixing portion, the rotating shaft sleeve is connected to the door fixing portion, and the spring and the clamping block are arranged perpendicular to the door fixing portion.

6. The tailgate hinge limiting mechanism according to claim 5, characterized in that: The hinge fixing arm also has a vehicle body fixing portion, the rotating shaft is connected to the vehicle body fixing portion, and a set angle is formed between the limiting groove and the vehicle body fixing portion.

7. The tailgate hinge limiting mechanism according to claim 6, characterized in that: There are two limit grooves, one of which is arranged as a 90° limit groove toward the vehicle body fixing portion, and the other limit groove is arranged as a 270° limit groove opposite to the vehicle body fixing portion.

8. The tailgate hinge limiting mechanism according to claim 6, characterized in that: The rotating shaft sleeve is arranged protruding from the door fixing part, the vehicle body fixing part is provided with a recess, the rotating shaft is arranged in the recess, and the rotating shaft sleeve and the recess are matched.

9. The tailgate hinge limiting mechanism according to claim 1, characterized in that: The other end of the clamping block is in an arc shape.

10. An automobile, comprising the tailgate hinge limiting mechanism according to any one of claims 1 to 9, characterized in that: The hinge fixing arm is fixedly arranged on the vehicle body, and the hinge rotating arm is fixedly arranged on the vehicle door.

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