CN219529556U

CN219529556U - Safe eccentric locking rotary hinge device

Info

Publication number: CN219529556U
Application number: CN202320622803.5U
Authority: CN
Inventors: 张国存
Original assignee: Guangzhou Gaodi School Equipment Manufacturing Co ltd
Current assignee: Guangzhou Gaodi School Equipment Manufacturing Co ltd
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-08-15
Anticipated expiration: 2033-03-24

Abstract

The utility model discloses a safe eccentric locking rotating hinge device which comprises a rotating hinge, a rotating hinge fixing piece hinged with the rotating hinge through a rotating hinge rotating shaft and a eccentric locking spanner hinged with the rotating hinge through an eccentric rotating shaft, wherein the rotating hinge is of an eccentric structure, and the eccentric locking spanner can move back and forth on the rotating hinge fixing piece so as to realize angle adjustment of the rotating hinge through cooperation with the rotating hinge. The safe eccentric locking rotating hinge device uses the eccentric locking spanner to drive the rotating hinge to move, effectively solves potential safety hazards such as a clamping hand, can realize stepless adjustment of angles, has simple structure and convenient operation, and can save manufacturing cost compared with a complex rotating hinge.

Description

Safe eccentric locking rotary hinge device

Technical Field

The utility model relates to the field of eccentric locking hinge rotating, in particular to a safe eccentric locking hinge rotating device.

Background

At present, the swivel hinge is widely applied to various mechanical structures as a common connecting piece, and is usually arranged at a folding or rotating position for folding or rotating the supporting legs of furniture such as chairs, tables and the like, and can be non-fixed or fixed, namely, can be positioned after rotating for a certain angle. However, the existing common rotary hinge has the defects of potential safety hazards of clamping hands, certain interval angle adjustment, high manufacturing cost and the like.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a safe eccentric locking hinge rotating device.

The technical scheme adopted for solving the technical problems is as follows: the safe eccentric locking rotating hinge device comprises a rotating hinge, a rotating hinge fixing piece hinged with the rotating hinge through a rotating hinge rotating shaft and an eccentric locking spanner hinged with the rotating hinge through an eccentric rotating shaft;

the rotary hinge is of an eccentric structure, and a first hinge rotating shaft hole for installing the hinge rotating shaft and a first eccentric shaft hole for installing the eccentric rotating shaft are formed in the rotary hinge rotating shaft;

the rotary hinge fixing piece is provided with a second rotary hinge shaft hole which is arranged corresponding to the first rotary hinge shaft hole, and the eccentric locking spanner is provided with a second eccentric shaft hole which is arranged corresponding to the first eccentric shaft hole;

the eccentric locking spanner buckle can move back and forth on the rotary hinge fixing piece so as to realize the angle adjustment of the rotary hinge through the cooperation with the rotary hinge.

In some embodiments, the safety eccentric locking hinge device further comprises a switch reset spring sleeved on the periphery of the eccentric rotating shaft so as to provide elastic force for the eccentric locking spanner when the eccentric locking spanner is kept in an initial state.

In some embodiments, a return spring groove for mounting the switch return spring is formed in the rotary hinge, and the return spring groove is provided with an abutting part, and the abutting part is positioned on the upper side of the first hinge shaft hole;

one end of the switch reset spring is abutted to the abutting part, and the other end of the switch reset spring is abutted to the wall surface of the eccentric locking spanner, which faces the rotary hinge.

In some embodiments, a clamping portion is disposed on a side of the rotary hinge facing the rotary hinge fixing member, and an angle adjusting limiting groove disposed opposite to the clamping portion is disposed on the rotary hinge fixing member.

In some embodiments, a pulling limiting part is arranged on one side of the eccentric locking pulling buckle facing the rotating hinge fixing piece, and an eccentric switch limiting groove which is arranged opposite to the pulling limiting part is arranged on the rotating hinge fixing piece;

the eccentric switch limit groove is positioned at one side of the angle adjusting limit groove facing the eccentric locking spanner.

In some embodiments, a driven part is arranged on one side of the bottom of the rotary hinge away from the clamping part, and a linkage part matched with the driven part in shape is arranged on one side of the eccentric locking spanner facing the rotary hinge, so that the linkage part drives the driven part to perform rotary motion when the eccentric locking spanner is pulled.

In some embodiments, the out-of-round locking spanner further comprises an operating part connected with the linkage part.

In some embodiments, a transition wall is disposed on a side of the linking portion facing the hinge fixing member, and the transition wall has an arc shape.

In some embodiments, the outer wall surface of the hinged fixing piece is provided with a hanging hook.

In some embodiments, the bottom end of the swivel hinge fastener is provided with a mounting groove.

The implementation of the utility model has the following beneficial effects: the safe eccentric locking rotating hinge device comprises a rotating hinge, a rotating hinge fixing piece hinged with the rotating hinge through a rotating hinge rotating shaft and an eccentric locking spanner hinged with the rotating hinge through an eccentric rotating shaft, wherein the rotating hinge is of an eccentric structure, and the eccentric locking spanner can move back and forth on the rotating hinge fixing piece so as to realize the angle adjustment of the rotating hinge through the cooperation of the rotating hinge. The safe eccentric locking rotating hinge device uses the eccentric locking spanner to drive the rotating hinge to move, effectively solves potential safety hazards such as a clamping hand, can realize stepless adjustment of angles, has simple structure and convenient operation, and can save manufacturing cost compared with a complex rotating hinge.

Drawings

In order to more clearly illustrate the technical solution of the present utility model, the following description will be given with reference to the accompanying drawings and examples, it being understood that the following drawings only illustrate some examples of the present utility model and should not be construed as limiting the scope, and that other related drawings can be obtained from these drawings by those skilled in the art without the inventive effort. In the accompanying drawings:

FIG. 1 is an exploded view of the components of a secure, eccentric locking hinge device in accordance with some embodiments of the present utility model;

FIG. 2 is a schematic perspective view of a security eccentric locking hinge device according to some embodiments of the present utility model;

FIG. 3 is a schematic cross-sectional view of a security eccentric locking hinge device in accordance with some embodiments of the present utility model;

FIG. 4 is a schematic illustration of a rotary hinge of a security eccentric locking hinge device in accordance with some embodiments of the present utility model;

FIG. 5 is a schematic view of a pivot mount of a security eccentric locking pivot device according to some embodiments of the present utility model;

fig. 6 is a schematic structural view of a circle-offset locking spanner of a security eccentric locking hinge device according to some embodiments of the present utility model.

Detailed Description

For a clearer understanding of technical features, objects and effects of the present utility model, a detailed description of embodiments of the present utility model will be made with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model, and do not indicate that the apparatus or element to be referred to must have specific directions, and thus should not be construed as limiting the present utility model.

It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or one or more intervening elements may also be present. The terms "first," "second," "third," and the like are used merely for convenience in describing the present utility model and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," etc. may explicitly or implicitly include one or more such features. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 to 6, a safety eccentric locking hinge device according to some embodiments of the present utility model may be used for a table and chair surface rotating hinge and a mechanical equipment rotating hinge, the safety eccentric locking hinge device includes a rotating hinge 1, a rotating hinge fixing member 2 hinged to the rotating hinge 1 through a rotating hinge rotation shaft 4, and an eccentric locking wrench 3 hinged to the rotating hinge 1 through an eccentric rotation shaft 5, the rotating hinge 1 is of an eccentric structure, a first rotating hinge shaft hole 11 for installing the rotating hinge rotation shaft 4 and a first eccentric shaft hole 12 for installing the eccentric rotation shaft 5 are provided on the rotating hinge fixing member 2, a second rotating hinge shaft hole 21 corresponding to the first rotating hinge shaft hole 11 is provided on the rotating hinge fixing member 2, and a second eccentric shaft hole 31 corresponding to the first eccentric shaft hole 12 is provided on the eccentric locking wrench 3, so that the rotating hinge 1 can be adjusted by matching with the rotating hinge 1.

It can be understood that the safe eccentric locking rotating hinge device uses the eccentric locking spanner buckle 3 to drive the rotating hinge 1 to move, effectively solves potential safety hazards such as clamping hands, can realize stepless angle adjustment, has simple structure and convenient operation, and can save manufacturing cost compared with complex rotating hinges.

As shown in fig. 3, the safety eccentric locking hinge device further includes a switch return spring 6, the switch return spring 6 is sleeved on the outer periphery of the eccentric rotating shaft 5 to provide an elastic force for maintaining the initial state to the eccentric locking spanner 3, further, a return spring groove 13 for installing the switch return spring 6 is formed in the rotating hinge 1, and the return spring groove 13 has an abutting portion 131, and the abutting portion 131 is located on the upper side of the first hinge shaft hole 11 in this embodiment. One end of the switch reset spring 6 is abutted against the abutting part 131, and the other end is abutted against the wall surface of the eccentric locking spanner 3, which faces the rotary hinge 1, so that the eccentric locking spanner 3 can be subjected to certain resistance when being pulled upwards, and the safety eccentric locking rotary hinge device can automatically return to an initial state when being detached. Preferably, the switch return spring 6 may be a metal spring, and the spring travel is long, the spring force is uniform, so that the situation of micro deformation, accumulated tolerance, abrasion and material fatigue generated after long-term working during assembly can be avoided, the stability of the opening and closing force of the out-of-round locking spanner 3 can be maintained, and in other embodiments, the switch return spring 6 may be a silica gel spring, a rubber spring or other metal springs, which are not limited specifically herein.

Wherein, the side of the rotary hinge 1 facing the rotary hinge fixing member 2 is provided with a clamping part 14, and the rotary hinge fixing member 2 is provided with an angle adjusting limiting groove 22 opposite to the clamping part 14. It can be appreciated that the engaging portion 14 abuts against the angle adjusting and limiting groove 22 after rotating to a certain angle along with the rotating hinge 1, so as to realize the positioning of the angle adjusting and limiting groove 22 with the maximum angle, and the size and the maximum adjusting angle of the angle adjusting and limiting groove 22 can be adjusted according to the actual product requirement.

In some embodiments, the side of the eccentric locking spanner 3 facing the rotary hinge fixing member 2 is provided with a spanner limit portion 32, the rotary hinge fixing member 2 is provided with an eccentric switch limit groove 23 opposite to the spanner limit portion 32, and the eccentric switch limit groove 23 is positioned on the side of the angle adjusting limit groove 22 facing the eccentric locking spanner 3. It can be understood that the trigger limiting portion 32 of the eccentric locking trigger 3 is abutted against the eccentric switch limiting groove 23 under the action of the switch return spring 6 in the initial state, and the trigger limiting portion 32 leaves the eccentric switch limiting groove 23 after the eccentric locking trigger 3 moves.

Further, a driven portion 15 is disposed on a side of the bottom of the rotary hinge 1 away from the engaging portion 14, and a linkage portion 33 having a shape matching with the driven portion 15 is disposed on a side of the eccentric locking wrench 3 facing the rotary hinge 1, so that the linkage portion 33 drives the driven portion 15 to perform a rotary motion when the eccentric locking wrench 3 is pulled. It can be understood that, a predetermined gap exists between the driven portion 15 and the linkage portion 33 in the initial state, and when the linkage portion 33 starts to move under the driving of the out-of-round locking spanner 3, the linkage portion 33 abuts against the driven portion 15, so as to drive the whole rotary hinge 1 to rotate along the rotary hinge rotation shaft 4.

The transition wall 331 is disposed on a side of the linking portion 33 facing the hinge fixing member 2, the transition wall 331 is arc-shaped, and a wall surface of the hinge fixing member 2 contacting the linking portion 33 is adapted to the shape of the transition wall 331, or may be arc-shaped, and may be rotated in cooperation with the hinge 1 and the eccentric locking spanner 3. Further, the eccentric locking spanner 3 further comprises an operation part 34 connected with the linkage part 33, wherein the operation part 34 is used for facilitating manual operation.

Preferably, the outer wall surface of the hinged fixing member 2 is provided with a hanging hook 24, and the hanging hook 24 can conveniently hang articles.

Further, the bottom end of the hinge fixing piece 2 is provided with a mounting groove 25, and the mounting groove 25 is used for being connected with an external mechanism for mounting and use. The top end of the rotary hinge 1 is also provided with a plurality of through holes for connecting with an external mechanism.

It is to be understood that the above examples only represent preferred embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the utility model; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. The safe eccentric locking rotary hinge device is characterized by comprising a rotary hinge (1), a rotary hinge fixing piece (2) hinged with the rotary hinge (1) through a rotary hinge rotating shaft (4) and a eccentric locking spanner (3) hinged with the rotary hinge (1) through an eccentric rotating shaft (5);

the rotary hinge (1) is of an eccentric structure, and is provided with a first hinge rotating shaft hole (11) for installing the hinge rotating shaft (4) and a first eccentric shaft hole (12) for installing the eccentric rotating shaft (5);

the rotary hinge fixing piece (2) is provided with a second rotary hinge shaft hole (21) which is arranged corresponding to the first rotary hinge shaft hole (11), and the eccentric locking spanner (3) is provided with a second eccentric shaft hole (31) which is arranged corresponding to the first eccentric shaft hole (12);

the eccentric locking spanner buckle (3) can move back and forth on the rotary hinge fixing piece (2) so as to realize the angle adjustment of the rotary hinge (1) through the cooperation with the rotary hinge (1).

2. The safe eccentric locking hinge device according to claim 1, further comprising a switch return spring (6), wherein the switch return spring (6) is sleeved on the periphery of the eccentric rotating shaft (5) so as to provide an elastic force for maintaining the initial state to the eccentric locking trigger (3).

3. The safety eccentric locking swivel hinge device according to claim 2, characterized in that a return spring groove (13) for mounting the switch return spring (6) is formed in the swivel hinge (1), the return spring groove (13) is provided with an abutting part (131), and the abutting part (131) is positioned on the upper side of the first swivel hinge shaft hole (11);

one end of the switch reset spring (6) is abutted to the abutting part (131), and the other end of the switch reset spring is abutted to the wall surface of the out-of-round locking spanner (3) facing the rotary hinge (1).

4. The safe eccentric locking hinge rotating device according to claim 2, wherein a clamping part (14) is arranged on one side of the rotating hinge (1) facing the hinge rotating fixing piece (2), and an angle adjusting limiting groove (22) opposite to the clamping part (14) is arranged on the hinge rotating fixing piece (2).

5. The safe eccentric locking hinge rotating device according to claim 4, wherein a hinge limiting part (32) is arranged on one side of the eccentric locking hinge (3) facing the hinge rotating fixing piece (2), and an eccentric switch limiting groove (23) which is arranged opposite to the hinge limiting part (32) is arranged on the hinge rotating fixing piece (2);

the eccentric switch limit groove (23) is positioned at one side of the angle adjusting limit groove (22) facing the eccentric locking spanner (3).

6. The safe eccentric locking hinge device according to claim 4, wherein a driven part (15) is arranged on one side of the bottom of the rotary hinge (1) away from the clamping part (14), and a linkage part (33) matched with the driven part (15) in shape is arranged on one side of the eccentric locking spanner (3) facing the rotary hinge (1), so that the linkage part (33) drives the driven part (15) to perform rotary motion when the eccentric locking spanner (3) is driven.

7. The safety eccentric locking hinge device according to claim 6, wherein the eccentric locking spanner (3) further comprises an operating part (34) connected with the interlocking part (33).

8. The safety eccentric locking hinge device according to claim 6, characterized in that a transition wall (331) is provided on a side of the interlocking part (33) facing the hinge fixing member (2), the transition wall (331) having an arc shape.

9. The safe eccentric locking hinge device according to claim 1, wherein a hanging hook (24) is arranged on the outer wall surface of the hinge fixing piece (2).

10. The safe eccentric locking hinge device according to claim 1, wherein the bottom end of the hinge fixing member (2) is provided with a mounting groove (25).