Automobile armrest box hinge structure capable of pausing damping at any angle

Abstract

The utility model relates to an automobile armrest box hinge structure capable of pausing damping at any angle, which comprises a fixed frame, a movable frame, two pin shafts and two nuts, the heads of the two pin shafts and the corresponding nuts respectively and jointly clamp the corresponding movable frame and fixed frame, so that the movable frame is hinged with the fixed frame; the fixing device further comprises two first rubber gaskets, two second rubber gaskets and four metal annular pieces, each first rubber gasket, each two metal annular pieces and each second rubber gasket are sequentially arranged on the corresponding pin shafts in a sleeving mode from inside to outside, and the first rubber gaskets and the two metal annular pieces are connected between the head portions of the pin shafts and the fixing frame in a clamped mode. The second rubber gasket is clamped between the fixed frame and the movable frame, the inner side face of the first rubber gasket makes close contact with the outer side face of the head of the pin shaft, the outer side face of the metal annular piece located on the outer side makes close contact with the inner side face of the fixed frame, and the inner side face of the second rubber gasket makes close contact with the outer side face of the fixed frame. The outer side face of the second rubber gasket makes close contact with the inner side face of the movable frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile accessories, in particular to a car armrest box hinge structure with arbitrary angle stop damping. BACKGROUND

[0002] Most of the existing vehicles, the armrest box upper cover in the middle of the seat is without damping function, because of the space arrangement constraints or cost constraints, without considering the equipped. The reality is that the armrest box upper cover in the process of opening and closing there is free falling problem, the process of free falling is rapid, in the case of not hand armrest box, it is difficult to guarantee not to be hit in the process of taking the armrest box articles. Further, someone sets up damping structure between the armrest box upper cover and the armrest box base, but when opening the armrest box upper cover, the damping structure and the hinge position between the upper cover due to excessive damping friction, will cause abnormal noise between the upper cover and the base, easy to make the armrest box parts wear and even failure, affect the service life of the armrest box parts, also interfere with the driver driving. SUMMARY

[0003] The utility model solves the problem to provide a car armrest box hinge structure with arbitrary angle stop damping, the car armrest box hinge structure with arbitrary angle stop damping can reduce abnormal sound, increase friction and make the uniform distribution of friction, realize arbitrary angle stop.

[0004] In order to solve the above technical problem, the utility model adopts the technical scheme as follows:

[0005] The utility model provides an arbitrary angle stop damping's car handrail box hinge structure, including fixed frame, movable frame, two pin shafts and two nuts, the end of pin shaft's stem part is equipped with the outer thread matched with corresponding nut, one end of fixed frame is equipped with two alignment first circular shaft hole, one end of movable frame is equipped with two alignment second circular shaft hole, first circular shaft hole and second circular shaft hole correspond and cooperate, and first circular shaft hole is at the inside of corresponding second circular shaft hole, the diameter of first circular shaft hole, the diameter of second circular shaft hole are equal to the diameter of pin shaft middle part, the stem part of two pin shafts passes corresponding first circular shaft hole, second circular shaft hole in proper order respectively, two nuts are installed at the stem part end of corresponding pin shaft respectively, and two nuts are at the outside of corresponding second circular shaft hole respectively, the head of two pin shafts and corresponding nut respectively together clamps corresponding movable frame, fixed frame, makes movable frame and fixed frame articulate, its characterized in that: still including two first rubber washer, two second rubber washer and four metal ring piece, every first rubber washer, every two metal ring piece, every second rubber washer is in proper order from inside to outside and is installed on corresponding pin shaft respectively, and first rubber washer, two metal ring piece clamps in the head of pin shaft and fixed frame between, second rubber washer clamps in fixed frame and movable frame between, the inside surface of first rubber washer and the outside surface of pin shaft's head are in close contact, the outside surface of metal ring piece at the outside is in close contact with the inside surface of fixed frame, the inside surface of second rubber washer and the outside surface of fixed frame are in close contact, the outside surface of second rubber washer and the inside surface of movable frame are in close contact.

[0006] The above-mentioned inside and outside are defined as follows: taking the center between the two first circular shaft holes at the end of the fixed frame as the reference, the side close to the center is the inside, and the side far from the center is the outside.

[0007] Generally, the car handrail box comprises a cover, a base and an upper hinge structure, the cover is installed on the movable frame, and the fixed frame is installed on the base.

[0008] The stem of the pin shaft passes through the first rubber washer, the two metal ring pieces, the first circular shaft hole, the second rubber washer and the second circular shaft hole in proper order to form a tight fit, the head of the pin shaft and the nut clamp the fixed frame and the movable frame to form a stable hinge structure. When the movable frame rotates, the pin shaft, the first rubber washer and the second rubber washer rotate relative to the fixed frame, while the two metal ring pieces on the pin shaft remain stationary. The first rubber washer and the second rubber washer provide a buffer between the contact surfaces, reducing direct collisions between metal parts and thus reducing abnormal noises. The two metal ring pieces between the first rubber washer and the fixed frame increase the complexity of the contact surface, forming multiple friction points between the contact surfaces, increasing the total friction force and ensuring uniform distribution of the friction force. When the movable frame is rotated to a certain angle, the friction force is sufficient to overcome the gravity and inertia, causing the cover of the handrail box to stop at that position, so that the cover of the handrail box can be stopped at any angle.

[0009] In the preferred embodiment, the periphery of the central hole of the second rubber washer is integrally connected with a rubber sleeve, the rubber sleeve is located in the first circular shaft hole, and the rod of the pin shaft sequentially passes through the corresponding first rubber washer, two metal annular sheets, the rubber sleeve, the second rubber washer, and the second circular shaft hole. The rubber sleeve can effectively absorb and reduce the vibration and noise generated by the pin shaft during movement, improve the running stability of the equipment, and reduce noise. In addition, the rubber sleeve can also protect the pin shaft to some extent, reduce the wear caused by direct contact between the pin shaft and metal parts, and prolong the service life of the pin shaft.

[0010] In the preferred embodiment, the first rubber washer and the second rubber washer are made of rubber or plastic. The first rubber washer and the second rubber washer made of rubber or plastic have good shock absorption and sound insulation effects.

[0011] In the preferred embodiment, the metal annular sheet is disc-shaped, has a first side and a second side, the middle parts of the first side and the second side are flat, the periphery of the disc-shaped metal annular sheet gradually inclines outward, the first side is concave, and the second side is convex. The disc-shaped metal annular sheet can be understood as a shallow dish shape, the top and bottom of the shallow dish are relatively flat and circular or approximately circular, and the periphery of the shallow dish gradually inclines outward, and the edge is usually round and not too sharp. This shape often appears in various objects, such as dishes. The disc-shaped metal annular sheet has good elasticity. For example, in mechanical connection, the disc-shaped metal annular sheet can be used as an elastic element that can deform elastically when subjected to axial pressure, thereby buffering and absorbing vibration. When a vehicle travels on a bumpy road, the engine and other components will vibrate, and the disc-shaped metal annular sheet can reduce the transmission of these vibrations to other components, thereby protecting the mechanical structure from excessive impact force and prolonging the service life of the mechanical components.

[0012] In the further preferred embodiment, the concave periphery of one disc-shaped metal annular sheet is in opposite and close contact with the concave periphery of another disc-shaped metal annular sheet. This opposite contact can increase the load-bearing capacity of the structure. When subjected to axial pressure, the concave peripheries of the two disc-shaped metal annular sheets support each other and can disperse the pressure to a larger contact area. This combined structure can withstand greater loads.

[0013] In the further preferred embodiment, the convex surface of one disc-shaped metal annular sheet is in opposite and close contact with the convex surface of another disc-shaped metal annular sheet. When the convex surfaces of the two disc-shaped metal annular sheets are in opposite and close contact, they can form a mutual support structure similar to an arch structure, which can effectively disperse the pressure.

[0014] In a further preferred embodiment, the concave surface of one disc-shaped metal ring piece faces and closely contacts the convex edge of another disc-shaped metal ring piece. When the concave surface of one disc-shaped metal ring piece faces and closely contacts the convex edge of another disc-shaped metal ring piece, this combination effectively optimizes force transmission. When subjected to pressure, the convex surface transfers force to the concave surface, which then acts like a container to absorb and distribute this force.

[0015] In a further preferred embodiment, the thickness of the metal ring sheet is 0.9 mm to 1.1 mm.

[0016] In a further preferred embodiment, the thickness of the metal ring piece from the plane where the concave edge is located to the convex surface is 1.4 mm to 1.6 mm.

[0017] In a preferred embodiment, the thickness of the first rubber gasket and the thickness of the second rubber gasket are both 0.9 mm-1.1 mm.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] The utility model inserts a first rubber gasket and two metal ring sheets between the head of the pin shaft and the fixed frame, and inserts a second rubber gasket between the fixed frame and the movable frame, which can provide buffering and shock absorption between the contact surfaces, reduce abnormal noise, and increase friction to evenly distribute the friction, so that the upper cover of the armrest box can stably stop at any angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a specific embodiment 1 of the present utility model;

[0021] Figure 2 yes Figure 1 Schematic diagram of the disassembled state;

[0022] Figure 3 yes Figure 1 A top view of

[0023] Figure 4 yes Figure 3 Cross-section of the middle AA;

[0024] Figure 5 This is a schematic structural diagram of the metal annular sheet in the specific embodiment 1 of the present utility model;

[0025] Figure 6 yes Figure 5 Right view;

[0026] Figure 7 yes Figure 6 Cross-section of the middle BB;

[0027] Figure 8 yesFigure 7 A schematic diagram of the structure in which the concave edges of the two disc-shaped metal ring pieces face each other;

[0028] Figure 9 This is a schematic structural diagram of a specific embodiment 2 of the present utility model;

[0029] Figure 10 It is a structural diagram of specific embodiment 3 of the present utility model. DETAILED DESCRIPTION

[0030] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Example 1, as Figures 1-8 As shown, the automobile armrest box hinge structure with arbitrary angle pause and damping in this embodiment includes a fixed frame 1, a movable frame 2, two pins 3, two nuts 4, two first rubber washers 5, two second rubber washers 6 and four metal ring sheets 7. The end of the rod of the pin 3 is provided with an external thread matching the corresponding nut 4, one end of the fixed frame 1 is provided with two aligned first circular shaft holes 11, and one end of the movable frame 2 is provided with two aligned second circular shaft holes 21. The first circular shaft hole 11 corresponds to the second circular shaft hole 21, and the first circular shaft hole 11 is on the inner side of the corresponding second circular shaft hole 21. The diameter of the first circular shaft hole 11 and the diameter of the second circular shaft hole 21 are both equal to the diameter of the middle part of the pin 3; the rods of the two pins 3 pass through the corresponding first circular shaft hole 11 and the second circular shaft hole 21 respectively in turn, and the two nuts 4 are respectively installed in the corresponding pins At the end of the rod of the shaft 3, the two nuts 4 are respectively located on the outside of the corresponding second circular shaft hole 21, and the heads of the two pins 3 and the corresponding nuts 4 jointly clamp the corresponding movable frame 2 and the fixed frame 1, so that the movable frame 2 is hinged to the fixed frame 1; each first rubber washer 5, each two metal ring pieces 7, and each second rubber washer 6 are respectively mounted on the corresponding pin 3 from the inside to the outside, and the first rubber washer 5 and the two metal ring pieces 7 are clamped between the head of the pin 3 and the fixed frame 1, and the second rubber washer 6 is clamped between the fixed frame 1 and the movable frame 2. The inner side of the first rubber washer 5 is in close contact with the outer side of the head of the pin 3, the outer side of the metal ring piece 7 on the outside is in close contact with the inner side of the fixed frame 1, the inner side of the second rubber washer 6 is in close contact with the outer side of the fixed frame 1, and the outer side of the second rubber washer 6 is in close contact with the inner side of the movable frame 2.

[0032] The above-mentioned definition of inside and outside is: based on the center between the two first circular shaft holes 11 at the end of the fixing frame 1, the side close to the center between the two first circular shaft holes 11 is inside, and the side away from the center between the two first circular shaft holes 11 is outside.

[0033] Generally, the automobile armrest box comprises a top cover, a base and an upper hinge structure, the top cover is installed on the movable frame 2, and the fixed frame 1 is installed on the base.

[0034] The rod part of the pin shaft 3 is sequentially fitted through the corresponding first rubber washer 5, two metal annular sheets 7, the first circular shaft hole 11, the second rubber washer 6 and the second circular shaft hole 21, the head part of the pin shaft 3 and the nut 4 clamp the fixed frame 1 and the movable frame 2 to form a stable hinge structure. When the movable frame 2 rotates, the pin shaft 3, the first rubber washer 5 and the second rubber washer 6 rotate relative to the fixed frame 1, and the two metal annular sheets 7 on the pin shaft 3 remain unchanged, the first rubber washer 5 and the second rubber washer 6 provide buffering between the contact surfaces to reduce direct collision between metal parts, thereby reducing abnormal sound; the two metal annular sheets 7 between the first rubber washer 5 and the fixed frame 1 increase the complexity of the contact surface, form multiple friction points between the contact surfaces, increase the total friction force, and ensure uniform distribution of the friction force, when the movable frame 2 rotates to a certain angle, the friction force is sufficient to overcome the gravity and inertia, so that the top cover of the armrest box stops at the position, so that the top cover of the armrest box can be stably stopped at any angle.

[0035] The center hole edge of the second rubber washer 6 is integrally connected with a rubber sleeve 61, the rubber sleeve 61 is in the first circular shaft hole 11, and the rod part of the pin shaft 3 is sequentially fitted through the corresponding first rubber washer 5, two metal annular sheets 7, the rubber sleeve 61, the second rubber washer 6 and the second circular shaft hole 21. The rubber sleeve 61 can effectively absorb and reduce the vibration and noise generated by the pin shaft 3 during movement, improve the running stability of the equipment and reduce noise, and also can play a certain protection role for the pin shaft 3, reduce the wear caused by direct contact between the pin shaft 3 and metal parts, and prolong the service life of the pin shaft 3.

[0036] The materials of the first rubber washer 5 and the second rubber washer 6 are rubber. The first rubber washer 5 and the second rubber washer 6 made of rubber have good damping and sound insulation effect.

[0037] The metal ring 7 is in the shape of a dish, the dish-shaped metal ring 7 has a first side 71 and a second side 72, the middle part of the first side 71 and the second side 72 are flat, the edge of the dish-shaped metal ring 7 is gradually inclined outward, the first side 71 is concave 711, and the second side 72 is convex 721. The above-mentioned dish shape can be understood as a shallow dish shape, the top and bottom of the shallow dish are relatively flat and circular or approximately circular, and the edge of the shallow dish gradually inclines outward, and the edge is generally rounded and not too sharp. Such a shape often appears in various objects, such as dishes. The above-mentioned dish-shaped metal ring has good elasticity, for example, in mechanical connection, the dish-shaped metal ring can be used as an elastic element, which can produce elastic deformation when subjected to axial pressure, and can play a role in buffering and absorbing vibration. When the vehicle runs on a bumpy road, the engine and other components will vibrate, and the dish-shaped metal ring can reduce the transmission of these vibrations to other components, protect the mechanical structure from excessive impact force, and prolong the service life of the mechanical components.

[0038] One concave edge 711 of a dish-shaped metal ring 7 is opposite and in close contact with the concave edge 711 of another dish-shaped metal ring 7. This opposite contact can increase the load-bearing capacity of the structure. When subjected to axial pressure, the concave edges of the two dish-shaped metal rings support each other and can disperse the pressure to a larger contact area, and the combined structure can withstand greater load.

[0039] The thickness of the metal ring is 0.9mm-1.1mm.

[0040] The thickness of the concave edge of the metal ring is 1.4mm-1.6mm.

[0041] The thickness of the first rubber gasket and the second rubber gasket is 0.9mm-1.1mm.

[0042] Example 2, as shown in Figure 9 The convex edge 721 of one dish-shaped metal ring 7 is opposite and in close contact with the convex edge 721 of another dish-shaped metal ring 7. When the convex edges of the two dish-shaped metal rings are opposite and in close contact, they can form a mutual support structure, which is similar to the mechanical advantage of an arch structure, and can effectively disperse the pressure.

[0043] Example 3, as shown in Figure 10As shown, the concave surface 711 of one of the dished metal ring segments 7 is in abutting contact with the convex surface 721 of another dished metal ring segment 7. This arrangement optimizes the transfer of forces when the concave surface of one dished metal ring segment is in abutting contact with the convex surface of another dished metal ring segment. When under pressure, the convex surface can transfer forces to the concave surface, which acts like a container to receive and disperse the forces.

[0044] In addition, it should be noted that the specific embodiments described in the specification, the name of each part, etc. can be different, as long as the equivalent or simple changes are made to the structure, features and principles described in the utility model patent concept, which are included in the protection scope of the utility model patent. The skilled in the art of the utility model can make various modifications or supplements to the described specific embodiments or use similar ways to replace, as long as it does not deviate from the structure of the utility model or beyond the scope defined by the claims, which shall belong to the protection scope of the utility model.

Claims

1. A kind of arbitrary angle stop damper of car armrest box hinge structure, including fixed frame, movable frame, two pin shafts and two nuts, the end of the stem of pin shaft is equipped with the outer thread matched with corresponding nut, the one end of fixed frame is equipped with two aligned first circular shaft hole, the one end of movable frame is equipped with two aligned second circular shaft hole, first circular shaft hole and second circular shaft hole are correspondingly matched, and first circular shaft hole is at the inside of corresponding second circular shaft hole, the diameter of first circular shaft hole, the diameter of second circular shaft hole are equal to the diameter of middle part of pin shaft;The stem of two pin shafts passes through corresponding first circular shaft hole, second circular shaft hole in turn respectively, two nuts are installed at the end of stem of corresponding pin shaft respectively, and two nuts are respectively at the outside of corresponding second circular shaft hole, the head of two pin shafts and corresponding nut respectively jointly clamp corresponding movable frame, fixed frame, so that movable frame and fixed frame are hinged;Its characterized in that: It also includes two first rubber washers, two second rubber washers and four metal ring sheets, each first rubber washer, each two metal ring sheets, and each second rubber washer are respectively mounted on the corresponding pin shaft from the inside to the outside, and the first rubber washer and the two metal ring sheets are clamped between the head of the pin shaft and the fixed frame, and the second rubber washer is clamped between the fixed frame and the movable frame. The inner side surface of the first rubber washer is in close contact with the outer side surface of the head of the pin shaft, the outer side surface of the metal ring sheet on the outside is in close contact with the inner side surface of the fixed frame, the inner side surface of the second rubber washer is in close contact with the outer side surface of the fixed frame, and the outer side surface of the second rubber washer is in close contact with the inner side surface of the movable frame.

2. The damperable automotive armrest box hinge structure at any angle according to claim 1, characterized in that: The edge of the center hole of the second rubber gasket is integrally connected with a rubber sleeve, which is located in the first circular shaft hole. The rod of the pin passes through the corresponding first rubber gasket, two metal ring sheets, the rubber sleeve, the second rubber gasket, and the second circular shaft hole in sequence.

3. The damperable automotive armrest box hinge structure at any angle according to claim 1, characterized in that: The first rubber gasket and the second rubber gasket are made of rubber or plastic.

4. The damperable automotive arm rest box hinge structure at any angle according to claim 1, wherein: The metal ring piece is in the shape of a disc, and has a first side surface and a second side surface. The middle parts of the first side surface and the second side surface are both flat. The edge of the disc-shaped metal ring piece tends to gradually tilt toward the four sides, the first side surface is concave, and the second side surface is convex.

5. The damperable automotive arm rest box hinge structure at any angle according to claim 4, characterized in that: The concave edge of one of the disk-shaped metal ring pieces is opposite to and in close contact with the concave edge of the other disk-shaped metal ring piece.

6. The damperable automotive arm rest box hinge structure at any angle according to claim 4, wherein: The convex surface of one of the disc-shaped metal annular plates is opposite to and in close contact with the convex surface of the other disc-shaped metal annular plate.

7. The damperable automotive arm rest box hinge structure at any angle according to claim 4, wherein: The concave surface of one of the disk-shaped metal annular plates is opposite to and in close contact with the convex edge of the other disk-shaped metal annular plate.

8. The damperable automotive arm rest box hinge structure at any angle according to claim 4, wherein: The thickness of the metal ring sheet is 0.9 mm to 1.1 mm.

9. The damperable automotive armrest box hinge structure at any angle according to claim 8, characterized in that: The thickness of the metal ring sheet from the plane where the concave edge is located to the convex surface is 1.4 mm to 1.6 mm.

10. The damperable automotive armrest box hinge structure at any angle according to claim 1, characterized in that: The thickness of the first rubber gasket and the thickness of the second rubber gasket are both 0.9mm-1.1mm.

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