Automobile armrest hinge

Abstract

The utility model provides an automobile armrest hinge, which belongs to the field of hinges and comprises two symmetrical hinge structures, the two hinge structures comprise lower supports, two sides of the inner walls of the lower supports are in interference fit with the surfaces of one ends of two mounting shafts, and the mounting shafts are arranged on the lower supports. The surfaces of the other ends of the two mounting shafts are rotationally connected with the two sides of the inner wall of the upper support through adjusting assemblies. The positions of the two self-locking nuts on the adjusting parts on the surfaces of the two mounting shafts are adjusted, the two self-locking nuts lock the two sets of wave washers at the positions of threaded grooves of the two adjusting parts, and meanwhile the two sets of POM wear-resisting pieces at the other ends of the two mounting shafts conduct clearance clamping on the two ends of the upper support. The upper support and the connecting parts of the surfaces of the two mounting shafts can rotate relatively, the stress area of the self-locking nut can be increased through the design of the two sets of wave washers, therefore, the clamping force of the two sets of POM wear-resisting pieces is controlled, then the rotating torsion of the upper support is controlled, and finally the hovering function is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hinge field, concretely is a kind of automobile handrail hinge. BACKGROUND

[0002] Traditional hinge structure does not have free stop function, one is that opening automobile handrail will appear automatic rebound phenomenon possibly injures automobile rear seat personnel, another is that it needs to hold handrail cover by hand, without any supporting force, lack of convenience and safety, so that there is certain necessity for the design research of automobile handrail hinge;

[0003] The hinge of the automobile handrail box disclosed by the application number CN201821843279.X comprises two symmetrical hinge structures, the hinge structure comprises a fixed frame, one end of the fixed frame is provided with two aligned shaft holes, a center shaft penetrates the shaft holes on the fixed frame, a movable frame is hinged to the fixed frame through the center shaft, a rubber pad is sleeved on the center shaft and clamped between the fixed frame and the movable frame, when the handrail is opened by pressing, the friction force generated between the fixed frame, the movable frame and the rubber pad is used to control the mutual rotation between the movable frame and the fixed frame, when the hinge torque is greater than or equal to the gravity of the movable frame, the hinge achieves the free stop effect, the handrail can be freely stopped at any position in the air, the handrail rebound is avoided, and the safety and reliability are improved.

[0004] But the above description still has the following defects in actual use: the automobile handrail hinge cannot keep the handrail at a fixed angle for a long time, and the problem of over-rotation is prone to occur, and the torque of the hinge cannot be adjusted and operated, so a practical automobile handrail hinge needs to be designed. TECHNICAL FIELD

[0005] The utility model aims at providing a kind of automobile handrail hinge to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of automobile handrail hinge, including two symmetrical hinge structures, two the hinge structure includes lower support, the two sides of the inner wall of the lower support and the surface of two installation shaft one end are interference fit, the surface of two the other end of installation shaft is rotatably connected with the two sides of the inner wall of upper support by adjusting assembly;

[0007] The adjusting assembly comprises two groups of POM wear-resistant sheets installed on the surface of the other end of the two mounting shafts, the two groups of POM wear-resistant sheets are in gap cooperation with the two ends of the upper support, the other side of the POM wear-resistant sheet is in abutment with the side of the lower support, the other side of the lower support is in abutment with the two wave-shaped washers sleeved on the surface of the mounting shaft, the other side of the two wave-shaped washers is in abutment with one end of the self-locking nut, and the inner wall of the self-locking nut is in threaded connection with the end surface of the mounting shaft.

[0008] As a preferred scheme of the utility model: the surface of the mounting shaft is divided into a connecting portion and an adjusting portion, plane grooves are formed in the two sides of the connecting portion, and a threaded groove is formed in the surface of the adjusting portion.

[0009] As a preferred scheme of the utility model: connecting holes are formed in the two sides of the inner wall of the lower support, and the inner walls of the two connecting holes are in interference fit with the two adjusting portions on the surface of the two mounting shafts.

[0010] As a preferred scheme of the utility model: rotating holes are formed in the two sides of the inner wall of the upper support, and the inner walls of the two rotating holes are relatively rotatable with the two connecting portions on the surface of the two mounting shafts.

[0011] As a preferred scheme of the utility model: limit protrusions are arranged on the edges of the two sides of the lower support, and the end surfaces of the two limit protrusions are in clamping connection with the inner wall of the upper support.

[0012] As a preferred scheme of the utility model: the inner walls of the two groups of POM wear-resistant sheets are rotatably clamped with the surfaces of the two connecting portions.

[0013] As a preferred scheme of the utility model: the inner walls of the two groups of wave-shaped washers are in interpenetration clamping with the threaded grooves on the surfaces of the two adjusting portions.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] (1) by adjusting the positions of the two self-locking nuts on the adjusting portions on the surface of the two mounting shafts, the two self-locking nuts lock the two groups of wave-shaped washers in the threaded grooves of the two adjusting portions, meanwhile, the other end of the two mounting shafts and the two groups of POM wear-resistant sheets gap-clamp the two ends of the upper support, so that the connecting portions on the surface of the two mounting shafts can relatively rotate, the design of the two groups of wave-shaped washers can increase the stress area of the self-locking nut, thereby controlling the clamping force of the two groups of POM wear-resistant sheets, further controlling the torsion of the rotation of the upper support, and finally realizing the hovering function.

[0016] (2) The connection design of two self-locking nuts and two mounting shafts makes it easy to install and replace POM wear-resistant plates and wave washers, so as to ensure that the torque does not change too much when the upper bracket rotates. At the same time, in conjunction with the two limiting protrusions on the lower bracket structure, the rotation angle range of the upper bracket can be controlled, which plays a limiting role. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a partial structural schematic diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the adjustment component structure of this utility model.

[0020] In the diagram: 1. Lower bracket; 11. Connecting hole; 12. Limiting protrusion;

[0021] 2. Mounting shaft; 21. Connecting part; 22. Adjusting part;

[0022] 3. Adjustment assembly; 31. POM wear-resistant sheet; 32. Wave washer; 33. Self-locking nut;

[0023] 4. Upper bracket; 41. Drill hole. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Please see Figure 1 - Figure 3 A car armrest hinge includes two symmetrical hinge structures. The two hinge structures include a lower bracket 1. The two sides of the inner wall of the lower bracket 1 are interference-fitted with the surfaces of one end of two mounting shafts 2. The surfaces of the other end of the two mounting shafts 2 are rotatably connected to the two sides of the inner wall of the upper bracket 4 through an adjusting component 3.

[0026] Please see Figure 3The adjustment component 3 includes two sets of POM wear-resistant plates 31 installed on the other end surfaces of the two mounting shafts 2. The two sets of POM wear-resistant plates 31 are in clearance fit with the two ends of the upper bracket 4. The other side of the POM wear-resistant plate 31 abuts against the side of the lower bracket 1. The other side of the lower bracket 1 abuts against two corrugated washers 32 sleeved on the surface of the mounting shaft 2. The other side of the two corrugated washers 32 abuts against one end of the self-locking nut 33. The inner wall of the self-locking nut 33 is threadedly connected to the end face of the mounting shaft 2.

[0027] In practical use: Adjust the position of the two self-locking nuts 33 on the adjustment part 22 on the surface of the two mounting shafts 2. The two self-locking nuts 33 lock the two sets of wave washers 32 at the threaded groove position of the two adjustment parts 22. At the same time, the two sets of POM wear-resistant plates 31 at the other end of the two mounting shafts 2 engage with the two ends of the upper bracket 4 with a gap, so that the connection part 21 between the upper bracket 4 and the surface of the two mounting shafts 2 can rotate relative to each other. The design of the two sets of wave washers 32 can increase the force-bearing area of ​​the self-locking nuts 33, thereby controlling the clamping force of the two sets of POM wear-resistant plates 31, and then controlling the torque of the rotation of the upper bracket 4, ultimately realizing the hovering function.

[0028] Please see Figure 3 The surface of the mounting shaft 2 is divided into a connecting part 21 and an adjusting part 22. The connecting part 21 has flat grooves on both sides, and the adjusting part 22 has threaded grooves on its surface.

[0029] In practical use: the flat grooves on both sides of the connecting part 21 on the surface of the mounting shaft 2 facilitate the normal installation of the upper bracket 4, and the threaded groove on the adjusting part 22 on the surface of the mounting shaft 2 facilitates the adjustment of the structural torque by the self-locking nut 33.

[0030] Please see Figure 2 The lower bracket 1 has connection holes 11 on both sides of its inner wall. The inner walls of the two connection holes 11 are interference-fitted with the two adjustment parts 22 on the surfaces of the two mounting shafts 2.

[0031] In practical use: the inner walls of the two connecting holes 11 are interference-fitted with the two adjusting parts 22 on the surfaces of the two mounting shafts 2, so that the lower bracket 1 and the mounting shaft 2 can rotate synchronously.

[0032] Please see Figure 2 The upper bracket 4 has two rotating holes 41 on both sides of its inner wall. The inner walls of the two rotating holes 41 rotate relative to the two connecting parts 21 on the surfaces of the two mounting shafts 2.

[0033] In practical use: the inner walls of the two rotating holes 41 are rotatably connected to the two connecting parts 21 on the surfaces of the two mounting shafts 2, so as to facilitate the relative rotation between the upper bracket 4 and the mounting shaft 2.

[0034] Please see Figure 2Limiting protrusions 12 are provided on both sides of the lower bracket 1, and the end faces of the two limiting protrusions 12 are engaged with the inner wall of the upper bracket 4.

[0035] In practical use: The connection design between the two self-locking nuts 33 and the two mounting shafts 2 facilitates the installation and replacement of the POM wear-resistant sheet 31 and the wave washer 32, so as to ensure that the torque does not change too much when the upper bracket 4 rotates. At the same time, in conjunction with the two limiting protrusions 12 on the structure of the lower bracket 1, the rotation angle range of the upper bracket 4 can be controlled, which plays a limiting role.

[0036] Please see Figure 3 The inner walls of the two sets of POM wear-resistant plates 31 rotate and engage with the surfaces of the two connecting parts 21.

[0037] In practical use: the inner walls of the two sets of POM wear-resistant plates 31 rotate and engage with the surfaces of the two connecting parts 21, which facilitates the clamping of the upper bracket 4 with the mounting shaft 2.

[0038] Please see Figure 3 The inner walls of the two sets of wave washers 32 interlock with the threaded grooves on the surfaces of the two adjustment parts 22.

[0039] In practical use: the inner walls of the two sets of wave washers 32 interlock with the threaded grooves on the surfaces of the two adjustment parts 22, thereby facilitating the adjustment of the torque of the hinge structure by cooperating with the two self-locking nuts 33.

[0040] In use, adjust the position of the two self-locking nuts 33 on the adjustment part 22 on the surface of the two mounting shafts 2. The two self-locking nuts 33 lock the two sets of wave washers 32 at the thread groove position of the two adjustment parts 22. At the same time, the two sets of POM wear-resistant plates 31 at the other end of the two mounting shafts 2 gap engage with the two ends of the upper bracket 4, so that the connection part 21 between the upper bracket 4 and the surface of the two mounting shafts 2 can rotate relative to each other. The design of the two sets of wave washers 32 can increase the force-bearing area of ​​the self-locking nuts 33, thereby controlling the clamping force of the two sets of POM wear-resistant plates 31, and then controlling the torque of the rotation of the upper bracket 4, ultimately realizing the hovering function.

[0041] The connection design of the two self-locking nuts 33 and the two mounting shafts 2 facilitates the installation and replacement of the POM wear-resistant sheet 31 and the wave washer 32, so as to ensure that the torque does not change too much when the upper bracket 4 rotates. At the same time, in conjunction with the two limiting protrusions 12 on the structure of the lower bracket 1, the rotation angle range of the upper bracket 4 can be controlled, thus playing a limiting role.

[0042] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A car armrest hinge, characterized in that, It includes two symmetrical hinge structures, each of which includes a lower bracket (1). The two sides of the inner wall of the lower bracket (1) are interference-fitted with the surfaces of one end of two mounting shafts (2). The surfaces of the other ends of the two mounting shafts (2) are rotatably connected to the two sides of the inner wall of the upper bracket (4) through an adjustment assembly (3). Adjustment component (3) includes two sets of POM wear-resistant plates (31) installed on the other end surfaces of two mounting shafts (2). The two sets of POM wear-resistant plates (31) are clearance-fitted with the two ends of the upper bracket (4). The other side of the POM wear-resistant plate (31) abuts against the side of the lower bracket (1). The other side of the lower bracket (1) abuts against two wave washers (32) sleeved on the surface of the mounting shaft (2). The other side of the two wave washers (32) abuts against one end of the self-locking nut (33). The inner wall of the self-locking nut (33) is threaded to the end face of the mounting shaft (2).

2. The automotive armrest hinge according to claim 1, characterized in that: The surface of the mounting shaft (2) is divided into a connecting part (21) and an adjusting part (22). The connecting part (21) has a flat groove on both sides, and the adjusting part (22) has a threaded groove on its surface.

3. The automotive armrest hinge according to claim 1, characterized in that: The lower bracket (1) has connecting holes (11) on both sides of its inner wall. The inner walls of the two connecting holes (11) are interference-fitted with the two adjustment parts (22) on the surfaces of the two mounting shafts (2).

4. The automotive armrest hinge according to claim 1, characterized in that: The upper bracket (4) has rotating holes (41) on both sides of its inner wall. The inner walls of the two rotating holes (41) rotate relative to the two connecting parts (21) on the surfaces of the two mounting shafts (2).

5. A car armrest hinge according to claim 1, characterized in that: The lower support (1) has limiting protrusions (12) on both sides of its edges, and the end faces of the two limiting protrusions (12) are engaged with the inner wall of the upper support (4).

6. A car armrest hinge according to claim 1, characterized in that: The inner walls of the two sets of POM wear-resistant plates (31) rotate and engage with the surfaces of the two connecting parts (21).

7. A car armrest hinge according to claim 1, characterized in that: The inner walls of the two sets of wave washers (32) interlock with the threaded grooves on the surfaces of the two adjustment parts (22).

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