Automobile door hinge assembly

Abstract

The utility model discloses an automobile door hinge assembly which comprises a fixed hinge, an opening hinge and a rotating shaft, a connecting base is arranged on the fixed hinge, a connecting arm is arranged on the opening hinge, the rotating shaft is arranged at the joint of the connecting arm and the connecting base in a sleeved mode, and a limiting piece capable of limiting the rotating angle of the opening hinge is arranged on the fixed hinge. A limiting part is arranged on the adjusting rod, an elastic part is further arranged on the limiting part, the elastic part comprises a cylinder barrel, a piston rod is arranged in the cylinder barrel, the piston rod is matched with the cylinder barrel in a sealing mode, and an oil seal is arranged between the inner wall of the cylinder barrel and the piston rod. The gap between the oil through hole and the adjusting rod is adjusted, damping of the elastic piece is adjusted according to the size of the gap, the elastic piece can keep the same elastic force all the time through adjustment, the buffering effect is kept unchanged all the time, and the service life of the door hinge is further prolonged.

Description

Technical Field

[0001] The utility model belongs to an automobile door hinge assembly, and particularly relates to an automobile door hinge assembly. Background Art

[0002] The automobile door hinge is responsible for the connection between the vehicle body and the door. During the process of opening the automobile door, if the force is too large or the speed is too fast to open the door, the impact force of the heavy door is very large, which will damage the hinge, cause the hinge to twist, and the door frame to be damaged and deformed. In the prior art, a buffer mechanism is arranged on the door hinge to reduce the rigid impact borne by the door hinge during the process of opening and closing the door.

[0003] After retrieval, an automobile door hinge provided by a Chinese utility model patent (authorization publication number: CN216197371U) includes a fixed page, a movable page, a rotating shaft, a limiting member and an elastic member. Two first connecting arms and two second connecting arms are respectively arranged on the fixed page and the movable page. A first fixing hole and a second fixing hole are respectively arranged on the fixed page and the movable page. The fixed page is installed on the vehicle body through the first fixing hole, and the movable page is installed on the door through the second fixing hole. The first connecting arm and the second connecting arm are hinged to each other through the rotating shaft, so that the movable page rotates around the rotating shaft, and thus the door rotates around the rotating shaft to open and close the door. The rotation angle of the movable page is limited through the setting of the limiting member, so as to limit the opening and closing angle of the door. By reducing the opening and closing angle of the door, the impact force on the hinge when the door is opened and closed is effectively reduced. Through the setting of the elastic member, the impact force on the hinge when the door is opened and closed is buffered to further reduce the impact force, and the service life of the hinge is effectively prolonged.

[0004] It can be seen from the above prior art that the function of buffering is realized by connecting an elastic member between the fixed page and the movable page, but the elastic force of the elastic member cannot be adjusted, so the needs of different people or vehicles cannot be met. Therefore, it is urgent to improve this shortcoming. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the above problems. The utility model provides an automobile door hinge assembly, which has the advantage that the elastic member can always maintain the same elastic force through adjustment.

[0006] To achieve the above object, the present utility model provides the following technical solutions: It includes a fixed page, a swing page and a rotating shaft. A connecting seat is provided on the fixed page, a connecting arm is provided on the swing page, and the rotating shaft is sleeved at the connection between the connecting arm and the connecting seat. A limiting member for restricting the rotation angle of the swing page is provided on the fixed page, and an elastic member is further provided on the limiting member. The elastic member includes a cylinder barrel, a piston rod is provided in the cylinder barrel, and the piston rod is in sealed cooperation with the cylinder barrel. An oil seal is provided between the inner wall of the cylinder barrel and the piston rod. An adjusting rod is movably provided inside the piston rod, and an adjusting assembly for pushing the adjusting rod to move is provided at the end of the piston rod.

[0007] Preferably, the piston rod is provided with an oil through hole arranged along the axial direction of the piston rod and an oil outlet hole arranged along the radial direction of the piston rod at its end. The oil through hole is communicated with the oil outlet hole, the oil through hole is communicated to the rodless cavity, the oil outlet hole is communicated to the rod cavity, and the adjusting rod is adapted to the shape of the oil through hole.

[0008] Preferably, the adjusting assembly includes an adjusting bolt and a nut installed on the piston rod. The bolt is in threaded connection with the nut, and the end of the bolt is in abutting cooperation with the end of the adjusting rod.

[0009] Preferably, the limiting member includes a connecting rod, and an arc-shaped groove for slidingly cooperating with the connecting rod is provided on the connecting seat.

[0010] Preferably, a first sleeve is provided at the end of the piston rod, a second sleeve is provided at the end of the cylinder barrel, a connecting block is provided on the connecting seat, and the first sleeve and the second sleeve are respectively sleeved on the outer periphery of the connecting block and the connecting rod.

[0011] Preferably, a first end cover is provided at the end of the connecting block, second end covers are provided at both ends of the connecting rod, and the first end cover and the second end cover are used to limit the movement of the first sleeve and the second sleeve in the axial direction.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] The automotive door hinge assembly provided by the present utility model drives the movement of the adjusting rod by rotating the nut, thereby realizing the adjustment of the gap between the oil through hole and the adjusting rod. The damping of the elastic member is adjusted by the size of the gap, so that the elastic member can always maintain the same elastic force through adjustment, so that the buffering effect remains unchanged all the time, and further improves the service life of the door hinge. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 This is a schematic cross-sectional structure diagram of the elastic member of the present utility model.

[0016] Description of the drawings: 1. Fixed page; 10. Connecting hole; 11. Connecting seat; 12. Connecting block; 13. First end cap; 14. Arc-shaped groove; 2. Opening and closing page; 21. Connecting arm; 3. Rotating shaft; 4. Connecting rod; 42. Second end cap; 5. Elastic member; 51. First sleeve; 52. Second sleeve; 53. Cylinder barrel; 54. Piston rod; 541. Oil passage hole; 542. Oil outlet hole; 55. Oil seal; 56. Adjusting rod; 57. Bolt; 58. Nut. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] As Figure 1 - Figure 2 shown, an automobile door hinge assembly includes a fixed page 1, an opening and closing page 2 and a rotating shaft 3. A plurality of connecting holes 10 are provided on both the fixed page 1 and the opening and closing page 2. The connecting holes 10 are used for installing connecting members, such as bolts 57, rivets, etc. A connecting seat 11 is provided on the fixed page 1, and a connecting arm 21 is provided on the opening and closing page 2. The rotating shaft 3 is sleeved at the connection between the connecting arm 21 and the connecting seat 11. A limiting member for restricting the rotation angle of the opening and closing page 2 is provided on the fixed page 1, and an elastic member 5 is further provided on the limiting member. The elastic member 5 includes a cylinder barrel 53. A piston rod 54 is provided inside the cylinder barrel 53. The piston rod 54 is in sealing fit with the cylinder barrel 53. An oil seal 55 is provided between the inner wall of the cylinder barrel 53 and the piston rod 54. An adjusting rod 56 is movably provided inside the piston rod 54, and an adjusting assembly for pushing the adjusting rod 56 to move is provided at the end of the piston rod 54.

[0019] An oil passage hole 541 arranged along the axial direction of the piston rod 54 and an oil outlet hole 542 arranged along the radial direction of the piston rod 54 are provided at the end of the piston rod 54. The oil passage hole 541 is communicated with the oil outlet hole 542. The oil passage hole 541 is communicated to the rodless cavity, and the oil outlet hole 542 is communicated to the rod cavity. The adjusting rod 56 is adapted to the shape of the oil passage hole 541.

[0020] The adjusting assembly includes an adjusting bolt 57 and a nut 58 mounted on the piston rod 54. Both the nut 58 and the bolt 57 are disposed on the peripheral wall of the piston rod 54. The bolt 57 is threadedly connected to the nut 58. The end of the bolt 57 abuts and cooperates with the end of the adjusting rod 56. The contact position between the bolt 57 and the adjusting rod 56 is in the shape of a mating frustum of a cone.

[0021] The limiting member includes a connecting rod 4. The connecting seat 11 is provided with an arc-shaped groove 14 that slidably cooperates with the connecting rod 4. The arc-shaped groove 14 is concentrically arranged with the rotating shaft 3.

[0022] A first sleeve 51 is provided at the end of the piston rod 54, and a second sleeve 52 is provided at the end of the cylinder barrel 53. The connecting seat 11 is provided with a connecting block 12. The first sleeve 51 and the second sleeve 52 are respectively sleeved on the outer periphery of the connecting block 12 and the connecting rod 4.

[0023] A first end cap 13 is provided at the end of the connecting block 12, and second end caps 42 are provided at both ends of the connecting rod 4. The first end cap 13 and the second end caps 42 are used to limit the movement of the first sleeve 51 and the second sleeve 52 in the axial direction.

[0024] During specific use: When it is necessary to adjust the damping of the elastic member 5, by rotating the bolt 57, the bolt 57 moves along the axis of the bolt 57 towards the side close to the axis of the adjusting rod 56, thereby pushing the adjusting rod 56 to move along the axis of the piston rod 54 towards the side close to the oil through hole 541, and then making the gap of the oil through hole 541 smaller, so as to increase the damping. On the contrary, when the bolt 57 is rotated in the reverse direction, the bolt 57 moves along the axis of the bolt 57 towards the side away from the axis of the adjusting rod 56, thereby pushing the adjusting rod 56 to move along the axis of the piston rod 54 towards the side away from the oil through hole 541, and then making the gap of the oil through hole 541 larger, so as to reduce the damping. Thus, the damping of the elastic member 5 can be adjusted according to different requirements, and the bolt 57 can be rotated to keep the elastic member 5 always have the same elastic force, so the buffering effect remains unchanged all the time, and further improves the service life of the door hinge.

[0025] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0026] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automobile door hinge assembly, comprising a fixed page (1), a movable page (2) and a rotating shaft (3). A connecting seat (11) is provided on the fixed page (1), a connecting arm (21) is provided on the movable page (2), the rotating shaft (3) is sleeved at the connection between the connecting arm (21) and the connecting seat (11), a limiting member for restricting the rotation angle of the movable page (2) is provided on the fixed page (1), and an elastic member (5) is further provided on the limiting member, characterized in that: The elastic member (5) includes a cylinder barrel (53), a piston rod (54) is arranged in the cylinder barrel (53), the piston rod (54) is in sealing fit with the cylinder barrel (53), an oil seal (55) is arranged between the inner wall of the cylinder barrel (53) and the piston rod (54), an adjusting rod (56) is movably arranged inside the piston rod (54), and an adjusting assembly for pushing the adjusting rod (56) to move is arranged at the end of the piston rod (54).

2. The automotive door hinge assembly according to claim 1, wherein: A through oil hole (541) arranged along the axial direction of the piston rod (54) and an oil outlet hole (542) arranged along the radial direction of the piston rod (54) are arranged at the end of the piston rod (54), the through oil hole (541) is communicated with the oil outlet hole (542), the through oil hole (541) is communicated to the rodless cavity, the oil outlet hole (542) is communicated to the rod chamber, and the adjusting rod (56) is adapted to the shape of the through oil hole (541).

3. The automotive door hinge assembly according to claim 2, characterized in that: The adjusting assembly includes an adjusting bolt (57) and a nut (58) installed on the piston rod (54), the bolt (57) is in threaded connection with the nut (58), and the end of the bolt (57) is in abutting fit with the end of the adjusting rod (56).

4. The automotive door hinge assembly according to claim 3, characterized in that: The limiting member includes a connecting rod (4), and an arc-shaped groove (14) for slidingly cooperating with the connecting rod (4) is arranged on the connecting seat (11).

5. The automotive door hinge assembly according to claim 4, characterized in that: A first sleeve (51) is arranged at the end of the piston rod (54), a second sleeve (52) is arranged at the end of the cylinder barrel (53), the connecting seat (11) is provided with a connecting block (12), and the first sleeve (51) and the second sleeve (52) are respectively sleeved on the outer peripheries of the connecting block (12) and the connecting rod (4).

6. The automotive door hinge assembly according to claim 5, wherein: A first end cover (13) is arranged at the end of the connecting block (12), second end covers (42) are arranged at both ends of the connecting rod (4), and the first end cover (13) and the second end cover (42) are used to limit the movement of the first sleeve (51) and the second sleeve (52) in the axial direction.

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