CN214678336U

CN214678336U - Self-locking hinged connecting piece

Info

Publication number: CN214678336U
Application number: CN202120365300.5U
Authority: CN
Inventors: 秦然; 邓新元; 陆智; 李德山; 石强
Original assignee: Borgerui Chongqing Technology Co ltd
Current assignee: Borgerui Chongqing Technology Co ltd
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2021-11-12
Anticipated expiration: 2031-02-09

Abstract

The utility model discloses an auto-lock articulated connecting piece, including articulated piece, be connected with two at least axle sleeves on this articulated piece, the axle sleeve includes two at least elastic rings, all in the same axle sleeve the central line collineation of elastic ring evenly arranges, in order to form the axle sleeve, wherein the elastic ring is formed by a steel wire is crooked, the steel wire both ends are close to each other, in order to form the elastic ring, the arbitrary one end of steel wire to articulated piece extends and forms the extension section, this extension section with articulated piece fixed connection, same axle sleeve connection's all extension section parallel arrangement. Compared with the prior art, the beneficial effects of the utility model are that: the rotating shaft penetrates through each shaft sleeve, rotation self-locking can be achieved, the connecting structure is suitable for connection among a plurality of parts which need to rotate in a limited space and can be locked by any rotating angle, and the structure is simple and compact.

Description

Self-locking hinged connecting piece

Technical Field

The utility model belongs to the technical field of machinery rotates and connects, concretely relates to auto-lock articulated connecting piece.

Background

A rotational connection is a common connection. In some products, the relative rotational adjustment and positioning between the two components is achieved by a combination of a rotational connection and a locking mechanism. For example, the seat back and the seat frame are rotatably connected through the angle adjuster, and the adjuster can be self-locked. When the backrest is adjusted to a certain angle, the backrest is locked with the seat frame, and the angle is kept. In order to realize the rotation adjusting function and bear larger torsion, the angle adjuster module is more complex. In some scenarios, the use of a rotating connection and locking mechanism is overly complex and takes up more installation space, affecting the design and installation of other components. In addition, in the case of a rotation joint with little stress, the locking mechanism is not necessary, which leads to an increase in cost. For example, to improve user comfort, seat headrests are often designed to be angularly adjustable by rotation in a vertical plane. However, such angle adjustment structures in the prior art are complicated. When there is more than one rotating connection in a limited space, it is neither economical nor compact to design the locking device separately.

SUMMERY OF THE UTILITY MODEL

In view of the above, as part of the solution to the above problems, the present invention provides a self-locking hinged connector.

The technical scheme is as follows:

a self-locking hinged connecting piece comprises a hinged block, wherein at least two shaft sleeves are connected to the hinged block, and the key point is that each shaft sleeve comprises at least two elastic rings, and the central lines of all the elastic rings in the same shaft sleeve are collinear and uniformly distributed to form the shaft sleeve;

the elastic ring is formed by bending a steel wire, and two ends of the steel wire are close to each other to form the elastic ring;

any end of the steel wire extends towards the hinging block to form an extension section which is fixedly connected with the hinging block;

all the extension sections connected with the same shaft sleeve are arranged in parallel.

Compared with the prior art, the beneficial effects of the utility model are that: the rotating shaft penetrates through each shaft sleeve, rotation self-locking can be achieved, the connecting structure is suitable for connection among a plurality of parts which need to rotate in a limited space and can be locked by any rotating angle, and the structure is simple and compact.

Drawings

FIG. 1 is a schematic structural view of a self-locking hinged connector;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a cross-sectional view C-C of FIG. 2;

fig. 4 is a schematic view of a multi-point swing hinge structure.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

Referring to fig. 1 and 2, a self-locking hinge joint comprises a hinge block 110, at least two bushings 120 are connected to the hinge block 110, the bushings 120 comprise at least two elastic rings 121, and the central lines of all the elastic rings 121 in the same bushing 120 are collinear and uniformly arranged to form the bushings 120. The elastic ring 121 is formed by bending a steel wire, and both ends of the steel wire are close to each other to form the elastic ring 121. The steel wire segment ring forming the elastic ring 121 is wound by more than one circle, and can not exceed two circles, so that radial or ring deformation redundancy is provided, and the two ends of the elastic ring 121 are prevented from being separated from each other in the ring direction and separated from the rotating shaft, so that the safety is improved.

Either end of the steel wire extends towards the hinge block 110 to form an extension section 122, and the extension section 122 is fixedly connected with the hinge block 110. All the extending sections 122 connected with the same shaft sleeve 120 are arranged in parallel, and any two adjacent elastic rings 121 in the same shaft sleeve 120 are attached to each other, so that the arrangement density of the elastic rings 121 is improved. The extension parts connected with the same bushing 120 are all arranged along the radial direction of the bushing 120 to improve the radial support strength of the bushing 120.

After the rotating shaft 210 with a proper outer diameter is respectively inserted into each shaft sleeve 120, each elastic ring 121 embraces the rotating shaft 210 to form a multi-point rotating hinge structure as shown in fig. 4. In this way, the hinge block 110 can be pushed to rotate relative to the rotating shaft 210, and the hinge block 110 can be allowed to be locked relative to the rotating shaft 210 after the pushing force is removed, i.e. so-called self-locking is realized. The self-locking hinged connector can be used for connecting and rotationally adjusting two or more components, and the rotational adjustment can be in the same plane or different planes. The design improves the number of the rotating mechanisms with the locking function in the limited space, and the structure is simple and compact.

In the embodiment, as shown in fig. 1, two bosses 120 are connected to the hinge block 110, the two bosses 120 are located outside a pair of opposite surfaces of the hinge block 110, the center lines of the two bosses 120 are parallel to each other, and the extension 122 connected to the two bosses 120 is located in the same plane as the center line of the boss 120.

The extension section 122 is further connected with a bending section 123, the elastic ring 121 and the extension section 122 are formed by bending the same steel wire, and the bending section 123 is connected with the hinge block 110 in an abutting manner or embedded in the hinge block 110. In this embodiment, the hinge block 110 is made of a polymer material, and all the bending sections 123 are embedded in the hinge block 110, as shown in fig. 3.

In this embodiment, the bending section 123 is planar, and the central lines of the bending section 123 and the elastic ring 121 are located in the same plane, so that when a pushing force is applied to the hinge block 110 to rotate relative to the rotating shaft, the torque transmitted from the bending section 123 to the elastic ring 121 is large, which is beneficial to effectively transmitting the pushing force.

All the bending sections 123 connected with the same shaft sleeve 120 are arranged in parallel. The bending sections 123 are 7-shaped, and all the bending sections 123 are arranged in parallel along a direction parallel to the central line of the shaft sleeve 120. During manufacturing, all the bending sections 123 corresponding to the same shaft sleeve 120 are arranged in parallel in a mold, and the hinge block 110 is formed through injection molding.

The multi-point rotating hinge structure can be used in a scene that one movable component is supported on one fixed component, and can realize the rotation of the movable component and the rotation around the fixed component.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. A self-locking hinged connector comprises a hinged block (110), wherein at least two shaft sleeves (120) are connected to the hinged block (110), and the self-locking hinged connector is characterized in that: the shaft sleeve (120) comprises at least two elastic rings (121), and the central lines of all the elastic rings (121) in the same shaft sleeve (120) are collinear and uniformly distributed to form the shaft sleeve (120);

the elastic ring (121) is formed by bending a steel wire, and two ends of the steel wire are close to each other to form the elastic ring (121);

any end of the steel wire extends towards the hinge block (110) to form an extension section (122), and the extension section (122) is fixedly connected with the hinge block (110);

all the extension sections (122) connected with the same shaft sleeve (120) are arranged in parallel.

2. The self-locking articulating connector of claim 1, wherein: the hinge block (110) is connected with two shaft sleeves (120), the two shaft sleeves (120) are positioned on a pair of opposite surfaces of the hinge block (110), the central lines of the two shaft sleeves (120) are parallel to each other, and all the extending sections (122) and the central lines of the shaft sleeves (120) are positioned in the same plane.

3. A self-locking articulated connection according to claim 1 or 2, characterized in that: the extension section (122) is further connected with a bending section (123), and the bending section (123) is connected with the hinge block (110) in an abutting mode or embedded in the hinge block (110).

4. A self-locking hinged connector according to claim 3, in which: the hinge block (110) is made of a high polymer material, and all the bending sections (123) are embedded in the hinge block (110).

5. The self-locking articulating connector of claim 4, wherein: the bending section (123) is planar, and the central lines of the bending section (123) and the elastic ring (121) are located in the same plane.

6. The self-locking articulating connector of claim 5, wherein: all the bending sections (123) in the same shaft sleeve (120) are arranged in parallel.

7. The self-locking articulating connector of claim 6, wherein: the bending sections (123) are 7-shaped, and all the bending sections (123) connected with the same shaft sleeve (120) are arranged along the direction parallel to the central line of the shaft sleeve (120).

8. A self-locking articulated connection according to claim 1 or 2, characterized in that: the steel wire segment forming the elastic ring (121) is annularly wound for more than one circle.