CN216406484U

CN216406484U - Self-locking hinge

Info

Publication number: CN216406484U
Application number: CN202121264237.2U
Authority: CN
Inventors: 黄保华
Original assignee: Jiaxing Yujia Torsion Hinge Co ltd
Current assignee: Jiaxing Yujia Torsion Hinge Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2022-04-29
Anticipated expiration: 2031-06-07

Abstract

The utility model provides a self-locking hinge which comprises a first U-shaped plate and a second U-shaped plate, wherein the second U-shaped plate is movably hinged in the first U-shaped plate through a pin shaft, two ends of the first U-shaped plate are respectively provided with an arc-shaped through groove and an arc-shaped clamping groove, and the clamping grooves are communicated with one end of the through groove; the rotating shaft and the through groove are in limiting action, so that the second U-shaped plate after rotating can be limited and fixed, and the function of fixing the rotating part after rotating can be realized.

Description

Self-locking hinge

Technical Field

The utility model relates to the field of hinges, in particular to a self-locking hinge.

Background

At present, the hinge only has the function of rotating parts on the rotating fixed parts and does not have the function of fixing the rotating parts, for example, the hinge on the hinge only has the function of rotating connecting parts and does not have the function of fixing the connecting parts, and the like of furniture such as folding tables, folding stools, doors and windows and the like.

SUMMERY OF THE UTILITY MODEL

In view of the technical shortcomings, the utility model aims to provide a self-locking hinge which solves the problem that the conventional hinge only can rotate a rotating part but cannot fix the rotating part.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a self-locking hinge comprises a first U-shaped plate and a second U-shaped plate, wherein the second U-shaped plate is movably hinged in the first U-shaped plate through a pin shaft, an arc-shaped through groove and a circular arc-shaped clamping groove are formed in the two ends of the first U-shaped plate, the clamping groove is communicated with one end of the through groove, a rotating shaft matched with the clamping groove is arranged on the second U-shaped plate, the diameter of the rotating shaft is larger than the width of the through groove, a spring is sleeved on the outer wall of the rotating shaft, a limiting plate is further arranged on the outer wall of the rotating shaft, one end of the spring is abutted to the limiting plate, the other end of the spring is abutted to the inner wall of the second U-shaped plate, a first connecting shaft matched with the through groove is arranged at one end of the rotating shaft, and a second connecting shaft matched with the through groove is arranged at the other end of the rotating shaft, and the free ends of the first connecting shaft and the second connecting shaft penetrate through and extend out of the through grooves, a button is arranged at the free end of the first connecting shaft, a circular nut is installed at the free end of the second connecting shaft, and the diameter of the nut is larger than that of the clamping groove.

Preferably, the diameter of the clamping groove is larger than the width of the through groove.

Preferably, a plurality of through holes II are formed in the U-shaped plate I and the U-shaped plate II.

Preferably, the two ends of the pin shaft are also provided with clamp springs for limiting.

Preferably, the button is a circular metal plate.

The utility model has the beneficial effects that: this design is passed through the axis of rotation and is led to the limiting displacement between the groove, can carry out spacing fixed to No. two U templates after the rotation to can realize the function of the rotation piece after the fixed rotation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a self-locking hinge according to an embodiment of the present invention;

FIG. 2 is a front view of a self-locking hinge according to an embodiment of the present invention;

FIG. 3 is a side view of a self-locking hinge according to an embodiment of the present invention;

fig. 4 is a schematic structural view of the rotating shaft.

Description of reference numerals:

1-U-shaped plate, 2-U-shaped plate, 3-pin shaft, 4-rotating shaft, 5-through groove, 6-clamping groove, 7-nut, 8-spring, 9-through hole, 10-button, 11-snap spring, 41-limiting plate, 42-connecting shaft II and 43-connecting shaft I.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 4, a self-locking hinge comprises a first U-shaped plate 1 and a second U-shaped plate 2, wherein the first U-shaped plate 1 is used for connecting a fixing part, the second U-shaped plate 2 is used for connecting a rotating part, the second U-shaped plate 2 is movably hinged in the first U-shaped plate 1 through a pin shaft 3, so that the second U-shaped plate 2 can perform required rotating operation on the first U-shaped plate 1, both ends of the first U-shaped plate 1 are respectively provided with an arc-shaped through groove 5 and an arc-shaped clamping groove 6, the clamping groove 6 is communicated with one end of the through groove 5, the second U-shaped plate 2 is provided with a rotating shaft 4 matched with the clamping groove 6, the diameter of the rotating shaft 4 is larger than the width of the through groove 5, so that the rotating shaft 4 cannot slide in the through groove 5, thereby limiting and fixing the second U-shaped plate 2 after rotating, the outer wall of the rotating shaft 4 is sleeved with a spring 8, a limit plate 41 is further arranged on the outer wall of the rotating shaft 4, one end of a spring 8 is abutted against the limit plate 41, the other end of the spring 8 is abutted against the inner wall of the U-shaped plate 2, the rotating shaft 4 can be pushed into the clamping groove 6 through the limit plate 41 after the U-shaped plate 2 rotates, a first connecting shaft 43 matched with the through groove 5 is arranged at one end of the rotating shaft 4, a second connecting shaft 42 matched with the through groove 5 is arranged at the other end of the rotating shaft 4, the free ends of the first connecting shaft 43 and the second connecting shaft 42 penetrate through and extend out of the two through grooves 5, the first connecting shaft 43 and the second connecting shaft 42 are used for driving the rotating shaft 4 to move in the through groove 5, a button 10 is arranged at the free end of the first connecting shaft 43, the button 10 is a circular metal plate, and is convenient for a user to press, a circular nut 7 is installed at the free end of No. two connecting axles, and the diameter of nut 7 is greater than the diameter of draw-in groove 6, plays spacing effect to No. two connecting axles.

Further, all seted up a plurality of through-hole 9 on U template 1, No. two U templates 2, use bolt commonly used to pass through-hole 9 and can install mounting or connecting piece on U template 1 or No. two U templates 2.

Preferably, the two ends of the pin shaft 3 are further provided with clamp springs 11 for limiting.

When the clamping groove is moved, the rotating shaft moves under the action of the spring and is clamped in the clamping groove, so that the first U-shaped plate and the second U-shaped plate are fixed with each other; pressing the button, the button promotes the axis of rotation and shifts out the draw-in groove, and during a connecting axle, No. two connecting axles removed the draw-in groove, rotated No. two U templates, a connecting axle, No. two connecting axles removed in curved logical groove, and it can to close No. one U template, No. two U templates this moment.

The design of the utility model can limit and fix the second U-shaped plate after rotating through the limiting action between the rotating shaft and the through groove, thereby realizing the function of fixing the rotating part after rotating.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A self-locking hinge is characterized by comprising a first U-shaped plate and a second U-shaped plate, wherein the second U-shaped plate is movably hinged in the first U-shaped plate through a pin shaft, an arc-shaped through groove and a circular arc-shaped clamping groove are formed in the two ends of the first U-shaped plate, the clamping groove is communicated with one end of the through groove, a rotating shaft matched with the clamping groove is arranged on the second U-shaped plate, the diameter of the rotating shaft is larger than the width of the through groove, a spring is sleeved on the outer wall of the rotating shaft, a limiting plate is further arranged on the outer wall of the rotating shaft, one end of the spring is abutted against the limiting plate, the other end of the spring is abutted against the inner wall of the second U-shaped plate, a first connecting shaft matched with the through groove is arranged at one end of the rotating shaft, a second connecting shaft matched with the through groove is arranged at the other end of the rotating shaft, and the free ends of the first connecting shaft and the second connecting shaft penetrate through and extend out of the through grooves, a button is arranged at the free end of the first connecting shaft, a circular nut is installed at the free end of the second connecting shaft, and the diameter of the nut is larger than that of the clamping groove.

2. The self-locking hinge of claim 1, wherein the diameter of said locking slot is greater than the width of said through slot.

3. The self-locking hinge of claim 1, wherein the first U-shaped plate and the second U-shaped plate are provided with a plurality of second through holes.

4. The self-locking hinge according to claim 1, wherein two ends of the pin shaft are further provided with a snap spring for limiting.

5. The self-locking hinge of claim 1, wherein said button is a circular metal plate.