Hinge head with U-shaped lock catch

Abstract

The utility model discloses a hinge head with a U-shaped lock catch, which comprises a hinge head main body, the outer wall of the hinge head main body is provided with the U-shaped lock catch, the two sides of the outer wall of the hinge head main body are both provided with assembling grooves, the interiors of the assembling grooves are connected with clamping blocks in a sliding manner, and the two sides of the inner wall of the U-shaped lock catch are both provided with clamping grooves; by means of the designed clamping block, the assembling groove, the clamping groove and the spring piece, the U-shaped lock catch is pressed on the outer wall of the hinge head body from top to bottom, in the pressing and assembling process, the inclined end face of the clamping block makes contact with and extrudes the U-shaped lock catch, the clamping block is pushed to slide into the assembling groove to avoid, and after the U-shaped lock catch is clamped on the hinge head body, the U-shaped lock catch is clamped into the clamping groove. At the moment, the spring piece in the compressed state releases elastic force, the clamping block is pushed to be clamped in the clamping groove, and the U-shaped lock catch is assembled, locked and fixed, so that the situation that the U-shaped lock catch in a traditional assembling mode is prone to being separated from the hinge head body, and the rotation preventing and pulling-out effect is affected is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of hinge heads, and in particular relates to a hinge head with a U-shaped lock buckle. Background Art

[0002] The hinge head is a hinge structure used to assemble the eyeglass frame and the eyeglass legs. This type of hinge structure mostly uses a circular memory metal material, which has extremely high elasticity and resilience, but is difficult to process and cannot be directly welded. This solution uses a high-pressure mold to press a flat position to make it square, and then use a stainless steel U-shaped lock to clamp it on the flat position to ensure that the hinge head cannot rotate at will, which ensures that it is not easy to pull out and rotate inside the injection molding.

[0003] The existing hinge head with a U-shaped lock has the following defects during assembly: (1) During the assembly process of the existing hinge head with a U-shaped lock, the U-shaped lock is directly clamped on the flat part of the circular hinge head, and there is no fixed structure to reinforce it. As a result, the U-shaped lock is easily loosened and falls off the hinge head, which affects the problem of ensuring that the hinge head is not easy to be pulled out and rotated in the later stage. For this reason, we propose a hinge head with a U-shaped lock. Utility Model Content

[0004] The purpose of the utility model is to provide a hinge head with a U-shaped lock to solve the problem that the hinge head proposed in the above background technology directly clamps the U-shaped lock on the flat part of the circular hinge head without a fixed structure for reinforcement, which causes the U-shaped lock to easily loosen and fall off the hinge head, affecting the later guarantee that the hinge head is not easy to be pulled out and rotated.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hinge head with a U-shaped lock, comprising a hinge head body, the outer wall of the hinge head body is provided with a U-shaped lock, both sides of the outer wall of the hinge head body are provided with assembly grooves, the interior of the assembly groove is connected with a clamping block by sliding, both sides of the inner wall of the U-shaped lock are provided with clamping grooves, one end of the clamping block is provided with a spring sheet, and the other end of the clamping block is placed inside the clamping groove.

[0006] Preferably, a limiting groove is provided on the bottom surface of the clamping block, a limiting block is arranged inside the limiting groove, and the limiting block is fixed on the inner wall of the assembly groove.

[0007] Preferably, a spherical groove is formed on the oblique end surface of the clamping block, and a ball is embedded in the spherical groove.

[0008] Preferably, a guide groove is provided on the inner end surface of the assembly groove, and a guide column is provided inside the guide groove and the spring sheet, and one end of the guide column is fixed on the surface of the clamping block.

[0009] Preferably, the longitudinal sections of the guide column and the guide groove are both circular structures, and the central axes of the guide column and the guide groove coincide with each other.

[0010] Preferably, the cross section of the block is a rectangular structure, and the shape of the spring sheet is a bow-shaped structure.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) Through the designed card block, assembly groove, card slot and spring sheet, the U-shaped lock is pressed from top to bottom on the outer wall of the hinge head body. During the pressing and assembling process, the inclined end face of the card block and the U-shaped lock are in contact and squeezed, generating a thrust on the card block, pushing it to slide into the assembly groove to avoid. After the U-shaped lock is stuck on the hinge head body, the spring sheet in a compressed state releases its elastic force, pushing the card block to be stuck in the card slot, and the U-shaped lock is assembled and locked to prevent the U-shaped lock from being easily detached from the hinge head body in the traditional assembly method, thereby affecting the effect of preventing rotation and pulling out. The designed limit block and limit slot play a limiting role to prevent the card block from falling off from the assembly groove. The designed ball plays a lubricating role to reduce the friction resistance of the extrusion end face between the card block and the U-shaped lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view of the utility model;

[0014] Figure 2 For this utility model Figure 1 The local structure cross-sectional view at point A in FIG.

[0015] Figure 3 It is a top view of the local structure of the hinge head main body of the utility model;

[0016] Figure 4 It is a three-dimensional diagram of the U-shaped lock of the utility model;

[0017] In the figure: 1. Hinge head body; 2. U-shaped lock; 3. Card slot; 4. Assembly slot; 5. Guide slot; 6. Guide column; 7. Spring sheet; 8. Limit block; 9. Limit slot; 10. Card block; 11. Ball. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example

[0020] See also Figures 1 to 4 The utility model provides a technical solution: a hinge head with a U-shaped lock, comprising a hinge head body 1, an outer wall of the hinge head body 1 is provided with a U-shaped lock 2, both sides of the outer wall of the hinge head body 1 are provided with assembly grooves 4, the interior of the assembly groove 4 is connected with a clamping block 10 by sliding, both sides of the inner wall of the U-shaped lock 2 are provided with clamping grooves 3, and one end of the clamping block 10 is provided with a spring sheet 7. Through the designed clamping block 10, assembly groove 4, clamping groove 3 and spring sheet 7, the U-shaped lock 2 is pressed from top to bottom on the outer wall of the hinge head body 1. During the pressing and assembling process, the oblique end surface of the clamping block 10 and the U-shaped lock 2 are in contact and squeezed, generating a thrust effect on the clamping block 10, pushing it to slide into the assembly groove 4 to avoid, and after the U-shaped lock 2 is stuck on the hinge head body 1, the The spring sheet 7 in the compressed state releases the elastic force, pushing the card block 10 to be stuck in the card slot 3, and the U-shaped lock buckle 2 is assembled and locked to prevent the U-shaped lock buckle 2 in the traditional assembly method from easily detaching from the hinge head main body 1 and affecting the effect of preventing rotation and pulling out. The other end of the card block 10 is placed inside the card slot 3, and a limiting groove 9 is provided on the bottom surface of the card block 10. A limiting block 8 is arranged inside the limiting groove 9. The designed limiting block 8 and limiting groove 9 play a limiting role to prevent the card block 10 from falling off from the assembly groove 4. The limiting block 8 is fixed on the inner wall of the assembly groove 4. A spherical groove is provided on the oblique end face of the card block 10, and a ball 11 is inlaid on the spherical groove. The designed ball 11 plays a lubricating role to reduce the friction resistance of the extrusion end face between the card block 10 and the U-shaped lock buckle 2.

[0021] In this embodiment, preferably, a guide groove 5 is provided on the inner end surface of the assembly groove 4, and a guide column 6 is provided inside the guide groove 5 and the spring sheet 7. The designed guide column 6 and guide groove 5 support and guide the spring sheet 7 to avoid displacement of the spring sheet 7 during extrusion and affect the elastic effect. One end of the guide column 6 is fixed on the surface of the block 10, and the longitudinal sections of the guide column 6 and the guide groove 5 are both circular structures, and the central axes of the guide column 6 and the guide groove 5 coincide with each other. The cross-section of the block 10 is a rectangular structure, and the outer shape of the spring sheet 7 is a bow-shaped structure.

[0022] The working principle and usage process of the utility model are as follows: the U-shaped lock buckle 2 of the utility model is pressed from top to bottom on the outer wall of the hinge head main body 1. During the pressing and assembling process, the inclined end surface of the clamping block 10 and the U-shaped lock buckle 2 are in contact and squeezed, generating a thrust effect on the clamping block 10, pushing it to slide into the assembly groove 4 to avoid it. After the U-shaped lock buckle 2 is stuck on the hinge head main body 1, the spring sheet 7 in a compressed state releases its elastic force, pushing the clamping block 10 to be stuck in the clamping groove 3, and the U-shaped lock buckle 2 is assembled and locked to prevent the U-shaped lock buckle 2 from being easily detached from the hinge head main body 1 in the traditional assembly method, thereby affecting the effect of preventing rotation and pulling out.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hinge head with a U-shaped lock, comprising a hinge head body (1), the outer wall of the hinge head body (1) being provided with a U-shaped lock (2), characterized in that: Both sides of the outer wall of the hinge head body (1) are provided with assembly grooves (4), and the interior of the assembly groove (4) is connected with a clamping block (10) by sliding. Both sides of the inner wall of the U-shaped lock buckle (2) are provided with clamping grooves (3), one end of the clamping block (10) is provided with a spring sheet (7), and the other end of the clamping block (10) is placed inside the clamping groove (3).

2. A hinge head with a U-shaped lock according to claim 1, characterized in that: A limiting groove (9) is provided on the bottom surface of the clamping block (10), a limiting block (8) is arranged inside the limiting groove (9), and the limiting block (8) is fixed on the inner wall of the assembly groove (4).

3. A hinge head with a U-shaped lock according to claim 2, characterized in that: The oblique end surface of the clamping block (10) is provided with a spherical groove, and a ball (11) is embedded in the spherical groove.

4. The hinge head with a U-shaped lock according to claim 1, characterized in that: The inner end surface of the assembly groove (4) is provided with a guide groove (5), and the guide groove (5) and the spring sheet (7) are provided with a guide column (6) inside, and one end of the guide column (6) is fixed on the surface of the clamping block (10).

5. A hinge head with a U-shaped lock according to claim 4, characterized in that: The longitudinal sections of the guide column (6) and the guide groove (5) are both circular structures, and the central axes of the guide column (6) and the guide groove (5) coincide with each other.

6. The hinge head with a U-shaped lock according to claim 1, characterized in that: The cross section of the clamping block (10) is a rectangular structure, and the outer shape of the spring sheet (7) is an arched structure.

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