CN218438896U - Middle hinge structure of sliding door - Google Patents

Abstract

The utility model provides a hinge structure in sliding door, including hinge rotor, hinge stator, the hinge hole of hinge rotor in be provided with the main shaft pin, the main shaft pin on the cover be equipped with the torsional spring, the torsion bar both ends of torsional spring overlap joint with hinge rotor, hinge stator respectively, the up end of hinge rotor is fixed and is provided with the leading wheel seat, the leading wheel seat in be provided with the leading wheel mounting hole, the leading wheel mounting hole in be provided with the leading wheel subassembly; the upper end face of the hinge moving piece is further provided with a bearing wheel mounting hole, and a bearing wheel assembly is arranged in the bearing wheel mounting hole. The utility model provides a traditional hinge structure is not enough in the door motion process that slides in the door that slides, still need great door closing force's problem when using.

Description

Middle hinge structure of sliding door

Technical Field

The utility model relates to the technical field of auto-parts, especially, relate to a hinge structure in door slides.

Background

The door hinge is a part for connecting the door with the vehicle body, on one hand, the door hinge bears the weight of the door, and on the other hand, the door hinge is used as a hinge for opening or closing the door. The sliding door can reduce the space in the width direction of the vehicle body when being opened, so the sliding door is widely used for vehicles such as minibuses, mini-boxes and the like, the vehicle door is generally connected with the vehicle body by an upper hinge, a middle hinge and a lower hinge, and the middle hinge of the sliding door mainly plays the roles of bearing and guiding. Along with the rapid development of the logistics industry, the market share of the miniature box cargo vehicle is larger and larger, the stability of the hinge structure in the sliding door of the traditional miniature box cargo vehicle is insufficient in the movement process of the sliding door, and a larger door closing force is required during use. Therefore, it is necessary to invent a new hinge structure in a sliding door.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hinge structure in door slides solves traditional door that slides in hinge structure is not enough at the door motion in-process stability that slides, still needs the great problem of the power of closing the door when using.

The utility model provides a technical scheme that its technical problem adopted is:

a sliding door middle hinge structure comprises a hinge moving piece and a hinge static piece, wherein a main shaft pin is arranged in a hinge hole of the hinge moving piece, a torsion spring is sleeved on the main shaft pin, two ends of a torsion bar of the torsion spring are respectively lapped with the hinge moving piece and the hinge static piece, a guide wheel seat is fixedly arranged on the upper end surface of the hinge moving piece, a guide wheel mounting hole is formed in the guide wheel seat, and a guide wheel assembly is arranged in the guide wheel mounting hole; the upper end face of the hinge moving piece is further provided with a bearing wheel mounting hole, and a bearing wheel assembly is arranged in the bearing wheel mounting hole.

Furthermore, the guide wheel seat, the guide wheel mounting hole and the guide wheel assembly are provided with two groups which are respectively positioned at two sides of the bearing wheel assembly.

Furthermore, the guide wheel assembly comprises a guide wheel shaft pin fixedly arranged in the guide wheel mounting hole, and a guide wheel is rotatably connected to the guide wheel shaft pin.

Furthermore, the bearing wheel assembly comprises a bearing wheel axle pin fixedly arranged in the bearing wheel mounting hole, and the bearing wheel axle pin is rotatably connected with a bearing wheel.

Furthermore, the bearing wheel comprises an inner fixing ring fixedly connected with a bearing wheel shaft pin, an outer rotating wheel rotatably arranged on the outer side of the inner fixing ring, and a ball arranged between the inner fixing ring and the outer rotating wheel.

Furthermore, the two ends of the main shaft pin are sleeved with bushings, and the bushings are rotatably arranged in the hinge holes.

Furthermore, the cross sections of the movable hinge plate and the static hinge plate are both U-shaped structures.

Furthermore, a plurality of groups of reinforcing ribs are arranged at the bending part of the hinge moving piece.

Furthermore, a plurality of assembling holes are formed in the hinge static sheet.

The utility model has the advantages that: the utility model has the advantages that the torsional spring is arranged in the middle hinge, so that the stability of the linear motion of the hinge is improved, the reset force is provided for the turning part of the vehicle door, and the door closing force is reduced; the walking track of the sliding door can be better controlled by adding the guide wheel component; the bearing wheel assembly plays a role in bearing the sliding door, and meanwhile, the sliding door can rotate more smoothly, so that the rotation resistance is reduced.

The present invention will be described in more detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is the structure view of the hinge in the sliding door of the present invention.

Fig. 2 is another direction structure diagram of the hinge structure of the sliding door of the present invention.

Fig. 3 is an exploded view of the hinge structure of the sliding door of the present invention.

Fig. 4 is an exploded view of the structure of the middle bearing wheel of the present invention.

Detailed Description

As shown in fig. 1 to 3, the sliding door middle hinge structure includes a hinge moving plate 1 and a hinge static plate 2, a spindle pin 3 is disposed in a hinge hole of the hinge moving plate 1, a torsion spring 4 is sleeved on the spindle pin 3, and two ends of a torsion bar of the torsion spring 4 are respectively overlapped with the hinge moving plate 1 and the hinge static plate 2; because torsional spring 4's addition for the stability of hinge straightway motion obtains promoting, provides the power that resets for the turning of door simultaneously, has reduced the power of closing the door. A guide wheel seat 11 is fixedly arranged on the upper end surface of the hinge moving plate 1, a guide wheel mounting hole 12 is formed in the guide wheel seat 11, and a guide wheel assembly is arranged in the guide wheel mounting hole 12; the guide wheel assembly is used for being matched with the vehicle door guide rail to better control the walking track of the sliding door; the upper end face of the hinge moving plate 1 is further provided with a bearing wheel mounting hole 13, a bearing wheel assembly is arranged in the bearing wheel mounting hole 13, and the bearing wheel assembly is rotatably arranged in the vehicle door guide rail and plays a bearing role in the sliding door.

Preferably, in combination with the above scheme, in order to ensure that the sliding door travels more stably, the guide wheel seat 11, the guide wheel mounting hole 12, and the guide wheel assemblies are provided with two sets, which are respectively located on two sides of the bearing wheel assembly.

Preferably, in combination with the above scheme, in order to facilitate the assembly of the guide wheel 7, the guide wheel assembly includes a guide wheel axle pin 6 fixedly disposed in the guide wheel mounting hole 12, one end of the guide wheel axle pin 6 is riveted in the guide wheel mounting hole 12, and the other end of the guide wheel axle pin 6 is rotatably connected with the guide wheel 7.

Preferably, in combination with the above solution, in order to facilitate the assembly of the load-bearing wheel 9, the load-bearing wheel assembly includes a load-bearing axle pin 8 fixedly disposed in the load-bearing wheel mounting hole 13, one end of the load-bearing axle pin 8 is riveted in the load-bearing wheel mounting hole 13, and the other end of the load-bearing axle pin 8 is rotatably connected to the load-bearing wheel 9.

Preferably, in combination with the above solution, as shown in fig. 4, in order to make the rotation of the bearing wheel 9 smoother and reduce the rotation resistance, the bearing wheel 9 includes an inner fixed ring 92 fixedly connected to the bearing axle pin 8, an outer rotating wheel 91 rotatably disposed outside the inner fixed ring 92, and balls 93 disposed between the inner fixed ring 92 and the outer rotating wheel 91.

Preferably, in combination with the above scheme, in order to reduce the rotational friction resistance between the main shaft pin 3 and the hinge hole and make the hinge rotate more smoothly, the two ends of the main shaft pin 3 are sleeved with the bushings 5, and the bushings 5 are rotatably disposed in the hinge hole.

Preferably, with the above scheme, in order to ensure the structural rigidity of the hinge moving plate 1 and the hinge static plate 2 and ensure that the hinge structure is more stable, the cross sections of the hinge moving plate 1 and the hinge static plate 2 are both U-shaped structures.

Preferably, in combination with the above scheme, in order to increase the structural rigidity of the hinge rotor 1, a plurality of sets of reinforcing ribs 14 are arranged at the bending position of the hinge rotor 1.

Preferably, in combination with the above solution, in order to facilitate the fixed installation of the hinge stator 2 on the sliding door by bolts, the hinge stator 2 is provided with a plurality of assembling holes 21.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, rear, 8230) \8230;) in the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is also changed accordingly.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited to the above embodiments, and various modifications made by the method and the technical solution of the present invention or applications without modification are all within the protection scope of the present invention.

Claims (9)

1. A sliding door middle hinge structure comprises a hinge moving piece (1) and a hinge static piece (2), wherein a main shaft pin (3) is arranged in a hinge hole of the hinge moving piece (1), and the sliding door middle hinge structure is characterized in that a torsion spring (4) is sleeved on the main shaft pin (3), two ends of a torsion bar of the torsion spring (4) are respectively lapped with the hinge moving piece (1) and the hinge static piece (2), a guide wheel seat (11) is fixedly arranged on the upper end face of the hinge moving piece (1), a guide wheel mounting hole (12) is arranged in the guide wheel seat (11), and a guide wheel assembly is arranged in the guide wheel mounting hole (12); the upper end face of the hinge moving plate (1) is further provided with a bearing wheel mounting hole (13), and a bearing wheel assembly is arranged in the bearing wheel mounting hole (13).

2. The sliding door hinge structure according to claim 1, wherein two sets of the guide wheel seat (11), the guide wheel mounting hole (12) and the guide wheel assembly are respectively arranged on two sides of the bearing wheel assembly.

3. The sliding door hinge structure according to claim 1 or 2, wherein the guide wheel assembly comprises a guide wheel axle pin (6) fixedly arranged in the guide wheel mounting hole (12), and the guide wheel (7) is rotatably connected to the guide wheel axle pin (6).

4. The sliding door hinge structure according to claim 1 or 2, wherein the bearing wheel assembly comprises a bearing wheel axle pin (8) fixedly arranged in the bearing wheel mounting hole (13), and the bearing wheel axle pin (8) is rotatably connected with the bearing wheel (9).

5. Hinge structure in sliding door according to claim 4, characterized in that the bearing wheel (9) comprises an inner fixed ring (92) fixedly connected to the bearing wheel axle pin (8), an outer turning wheel (91) rotatably arranged outside the inner fixed ring (92), and balls (93) arranged between the inner fixed ring (92) and the outer turning wheel (91).

6. The sliding door hinge structure according to claim 1, wherein the main shaft pin (3) is sleeved with a bushing (5) at both ends, and the bushing (5) is rotatably disposed in the hinge hole.

7. The sliding door hinge structure according to claim 1, wherein the cross-sections of the hinge moving plate (1) and the hinge static plate (2) are both U-shaped.

8. The sliding door hinge structure according to claim 7, wherein the bending portion of the hinge rotor (1) is provided with a plurality of sets of ribs (14).

9. Hinge structure in sliding doors according to claim 1, characterised in that the hinge stator (2) is provided with assembling holes (21).

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