Spring hinge for glasses

Abstract

A spring hinge for glasses comprises a shell and a spring cavity formed in the left portion of the shell, a movable hole communicated with the spring cavity is formed in the right end face of the shell, a core rod is arranged in the spring cavity, a limiting block is arranged at one end of the core rod, a core matched with the movable hole is arranged at the other end of the core rod, and one end of the core penetrates out of the movable hole and is provided with a hinge joint. A movable sleeve is sleeved outside one end, arranged on the core, of the core rod, a limiting block is arranged at the other end of the core rod, a spring sleeved outside the core rod is arranged between the limiting block and the movable sleeve, and a limiting sliding groove matched with the core is formed in the inner wall of the upper side of the movable hole; an auxiliary sliding groove opposite to the limiting sliding groove is formed in the inner wall of the lower side of the movable hole, and the lower portion of the core is located in the auxiliary sliding groove. According to the spring hinge for the glasses, the number of limiting parts can be effectively reduced while the assembling quality is guaranteed, the overall assembling process is simplified, and the overall assembling efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of glasses, in particular to a spring hinge used on glasses. Background Art

[0002] A spring hinge is a connecting structure used to connect the frame and temples of glasses. It is an important component of glasses and can realize the opening and closing of the temples.

[0003] Traditional spring hinges all have a shell for accommodating a movable core. One end of the core passes through the shell and is provided with a hinge joint for hinged connection with the frame, and the other end of the core is a core rod located in the shell. One end of the core rod is provided on the core and is covered with a movable sleeve, and the other end of the core rod is provided with a limit block, and a spring is provided between the limit block and the movable sleeve and is sleeved on the outside of the core rod. At this time, a limit assembly needs to be provided on the shell, and the movable sleeve is limited by the limit assembly to prevent the movable sleeve from slipping out of the shell. The limit assembly used in the traditional spring hinge needs to machine a mounting hole on the shell that is connected to the inside of the shell, and then a limit piece that can limit the movable sleeve is provided in the mounting hole. This not only leads to an increase in the shell processing steps of the spring hinge and an increase in the processing cost, but also no matter whether the limit piece is screwed into the mounting hole or riveted into the mounting hole, with the emergence of the limit assembly, due to the increase in the number of components, the assembly action will increase, resulting in the assembly process becoming cumbersome, which seriously affects the overall assembly efficiency of the spring hinge. Summary of the invention

[0004] The utility model aims to solve the existing technical problem and to provide a spring hinge for glasses, which can effectively reduce the number of components used for limiting while ensuring the assembly quality, simplify the overall assembly process, and effectively improve the overall assembly efficiency.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] The utility model discloses a spring hinge for glasses, comprising a shell, a spring cavity arranged in the left part of the shell, a movable hole intersecting the spring cavity is arranged on the right end face of the shell, a core rod is arranged in the spring cavity, a limit block is arranged at one end of the core rod, a core matching the movable hole is arranged at the other end of the core rod, one end of the core passes out of the movable hole and is provided with a hinge head, one end of the core rod is arranged on the core and is covered with a movable sleeve, a limit block is arranged at the other end of the core rod, a spring sleeved outside the core rod is arranged between the limit block and the movable sleeve, the upper inner wall of the movable hole is provided with a limit slide matching the core; the lower inner wall of the movable hole is provided with an auxiliary slide opposite to the limit slide, and the lower part of the core is located in the auxiliary slide; the lower surface of the core adjacent to one end of the core rod is provided with an anti-interference notch corresponding to the position of the auxiliary slide; the lower surface of the shell is provided with a positioning groove corresponding to the position of the anti-interference notch.

[0007] The limit block is formed by riveting one end of the core rod away from the core, and the diameter of the limit block is larger than the diameter of the core rod; the diameter of the limit block is smaller than the diameter of the movable hole.

[0008] The core is provided with a core rod, one end surface of which is fitted with a movable sleeve; and the movable sleeve is located in the movable hole.

[0009] The hinged joint has a limiting portion; a limiting plane is provided on one side of the limiting portion, and the limiting plane is in contact with an end surface of the housing where the movable hole is provided.

[0010] The lower surface of the shell is provided with a welding plane, and the positioning groove is provided on the welding plane.

[0011] The beneficial effects of the utility model are:

[0012] Compared with the prior art, the spring hinge for glasses using the structure of the utility model does not need to add any components for limiting when limiting the movable cover. It only needs to set a positioning groove on the shell to locate the riveting point, and the movable cover can be limited by directly riveting the shell. Since the entire assembly process does not require the use of any limiting components, the removal of the limiting components can effectively simplify the processing procedures of the spring hinge and reduce the processing costs. At the same time, it can effectively simplify the overall assembly process and improve the overall assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional view of the spring hinge used for glasses of the utility model;

[0014] Figure 2 It is a structural schematic diagram of a spring hinge used on glasses;

[0015] Figure 3 This is a schematic diagram of the structure of the spring hinge on the glasses after the shell is removed;

[0016] Figure 4 It is a schematic diagram of the structure of the shell. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0018] See also Figures 1 to 4The utility model provides a spring hinge for glasses, comprising a shell 1, a spring cavity 2 arranged in the left part of the shell 1, a movable hole 3 intersecting the spring cavity 2 is arranged on the right end face of the shell 1, a core rod 4 is arranged in the spring cavity 2, a limit block 5 is arranged at one end of the core rod 4, a core 6 matching the movable hole 3 is arranged at the other end of the core rod 4, one end of the core passes out of the movable hole 3 and is provided with a hinge head 7, one end of the core rod 4 arranged on the core 6 is covered with a movable sleeve 8, the other end of the core rod 4 is provided with a limit block 5, and the limit A spring 9 is provided between the block 5 and the movable sleeve 8 and is sleeved on the outside of the core rod 4; a limiting slide groove 10 matching the core 6 is provided on the upper inner wall of the movable hole 3; an auxiliary slide groove 11 opposite to the limiting slide groove 10 is provided on the lower inner wall of the movable hole 3, and the lower part of the core 6 is located in the auxiliary slide groove 11; an anti-interference notch 12 corresponding to the position of the auxiliary slide groove 11 is provided on the lower surface of one end of the core 6 adjacent to the core rod 4; a positioning groove 13 corresponding to the position of the anti-interference notch 12 is provided on the lower surface of the shell 1.

[0019] The stop block 5 is formed by riveting one end of the core rod 4 away from the core 6 , and the diameter of the stop block 5 is larger than the diameter of the core rod 4 ; the diameter of the stop block 5 is smaller than the diameter of the movable hole 3 .

[0020] The core 6 is provided with a core rod 4 whose end surface is fitted with a movable sleeve 8; the movable sleeve 8 is located in the movable hole 3.

[0021] The hinged joint 7 has a limiting portion 14 ; a limiting plane 15 is provided on one side of the limiting portion 14 , and the limiting plane 15 is in contact with an end surface of the housing 1 where the movable hole 3 is provided.

[0022] The lower surface of the housing 1 is provided with a welding plane 16 , and the positioning groove 13 is provided on the welding plane 16 .

[0023] The method of using the utility model is as follows:

[0024] The existence of the positioning groove 13 is used to locate the riveting point of the shell 1. The positioning groove 13 only needs to be riveted upward, and the bottom of the positioning groove 13 will deform toward the inside of the shell 1. The position of the positioning groove 13 corresponds to the position of the anti-interference notch 12. When the lower inner wall of the shell 1 deforms upward, the deformed part is just in the anti-interference notch 12, so as to avoid the situation where the deformed part of the inner wall of the shell 1 presses on the surface of the core 6 and restricts the movement of the core 6. At this time, the deformed part of the inner wall of the shell 1 is just on the side of the movable sleeve 8 adjacent to the opening of the movable hole 3. When the core 6 pulls the core rod 4 to move outward from the movable hole 3, the deformed part of the inner wall of the shell 1 will effectively restrict the movable sleeve 8 from moving outward with the core 6, and as the core rod 4 moves toward The spring 9 between the limit block 5 and the movable sleeve 8 is compressed and generates elasticity, which can play an auxiliary role in opening and closing the temples. In the process of riveting the positioning groove 13, since the anti-interference notch 12 corresponding to the position of the positioning groove 13 is opposite to the auxiliary slide groove 11, the existence of the auxiliary slide groove 11 can thin the wall thickness of the part of the shell 1 that needs to be riveted, making the riveting process smoother, thereby easily completing the riveting action and quickly realizing the limiting of the movable sleeve 8. At the same time, the auxiliary slide groove 11 and the limit slide groove 10 can guide the plate-shaped core to prevent the core from rotating when it moves axially.

[0025] From the above, it can be known that the utility model does not need to add any components for limiting when limiting the movable sleeve 8. It only needs to set a positioning groove on the shell 1 for positioning the riveting point. The movable sleeve 8 can be limited by directly riveting the shell 1. Since the entire assembly process does not require the use of any limiting components, the removal of the limiting components can effectively simplify the processing procedures of the spring hinge and reduce the processing costs. At the same time, it can effectively simplify the overall assembly process and improve the overall assembly efficiency.

[0026] The limit block 5 is formed by riveting the end of the core rod 4 away from the core 6. The diameter of the limit block 5 is larger than the diameter of the core rod 4, and the diameter of the limit block 5 is smaller than the diameter of the movable hole 3. Therefore, when the end of the core rod 4 away from the core 6 is not riveted, the core rod 4 is in a straight rod state, and the movable sleeve 8 and the spring 9 can be easily put on the outside of the core rod 4. After the movable sleeve 8 and the spring 9 are assembled, the end of the core rod 4 away from the core 6 can be riveted again to rivet out the limit block 5. At this time, the spring 9 is restricted between the limit block 5 and the movable sleeve 8, and then the assembled core rod 4 can be placed in the spring cavity 2 through the movable hole 3. This assembly method is conducive to the rapid installation of the core rod 4 and other components into the shell 1, further improving the overall assembly efficiency of the spring hinge.

[0027] The core 6 is provided with a core rod 4 whose end surface is fitted with a movable sleeve 8, and the movable sleeve 8 is located in the movable hole 3. When the movable sleeve 8 is fitted with the core 6, the elasticity of the spring 9 can act on the core 6 through the movable sleeve 8 at the first time.

[0028] The hinged head 7 has a limiting portion 14, and a limiting plane 15 is provided on one side of the limiting portion 14. The limiting plane 15 is in contact with the end face of the shell 1 where the movable hole 3 is provided. The existence of the limiting plane 15 can not only limit the core 6 and ensure the accurate resetting of the core 6 after it is retracted into the movable hole 3, but also ensure that the hinged head 7 can fit tightly with the end face of the shell 1, effectively ensuring the flatness of the hinged head 7 when it is hinged on the glasses frame, and avoiding the situation where there is a gap visible to the naked eye at the hinged position that affects the aesthetics.

[0029] A welding plane 16 is provided on the lower surface of the shell 1, and a positioning groove 13 is provided on the welding plane 16. A plate body is provided at the head end of the temple. The welding plane 16 of the shell 1 can fit tightly against the surface of the plate body, and the shell 1 is firmly welded to the plate body at the head end of the temple, so that the head end of the temple is connected to the glasses frame through a spring hinge.

Claims

1. A spring hinge for glasses, comprising a housing, a spring cavity arranged in the left part of the housing, a movable hole intersecting the spring cavity is arranged on the right end face of the housing, a core rod is arranged in the spring cavity, a stop block is arranged at one end of the core rod, a core matching the movable hole is arranged at the other end of the core rod, one end of the core passes out of the movable hole and is provided with a hinge head, an end of the core rod arranged on the core is covered with a movable sleeve, a stop block is arranged at the other end of the core rod, a spring sleeved outside the core rod is arranged between the stop block and the movable sleeve, characterized in that: The upper inner wall of the movable hole is provided with a limiting slide groove matching the core; the lower inner wall of the movable hole is provided with an auxiliary slide groove opposite to the limiting slide groove, and the lower part of the core is located in the auxiliary slide groove; the lower surface of the core adjacent to one end of the core rod is provided with an anti-interference notch corresponding to the position of the auxiliary slide groove; the lower surface of the shell is provided with a positioning groove corresponding to the position of the anti-interference notch.

2. A spring hinge for glasses according to claim 1, characterized in that: The limit block is formed by riveting one end of the core rod away from the core, and the diameter of the limit block is larger than the diameter of the core rod; the diameter of the limit block is smaller than the diameter of the movable hole.

3. A spring hinge for glasses according to claim 1, characterized in that: The core is provided with a core rod, one end surface of which is fitted with a movable sleeve; and the movable sleeve is located in the movable hole.

4. The spring hinge for glasses according to claim 1, characterized in that: The hinged joint has a limiting portion; a limiting plane is provided on one side of the limiting portion, and the limiting plane is in contact with an end surface of the housing where the movable hole is provided.

5. The spring hinge for glasses according to claim 1, characterized in that: The lower surface of the shell is provided with a welding plane, and the positioning groove is provided on the welding plane.

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