A new slingshot shell structure
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUHUAN YINGSHENG GLASSES CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-08-07
AI Technical Summary
现有的部分弹弓壳，特别是对于尺寸较小的弹弓壳而言，由于链接与弹弓壳的抵接位置过于靠内，会导致芯体被拉出的距离过小，从而导致弹簧的压缩量不够，最终导致眼镜铰链结构的弹性不足
[0011]本实用新型技术效果主要体现在以下方面：
Smart Images
Figure CN224609358U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to eyeglass accessories, and in particular, to a novel slingshot shell structure. Background Technology
[0002] The slingshot case is a crucial component of the eyeglass hinge structure. When the hinge rotates, its end abuts against the slingshot case, pulling out the core inside and compressing the spring. Some existing slingshot cases, especially smaller ones, have an excessively inward abutment point between the link and the case, resulting in insufficient pulling distance of the core. This leads to inadequate spring compression and ultimately insufficient elasticity in the eyeglass hinge structure. This problem urgently needs to be addressed. Utility Model Content
[0003] In view of this, the purpose of this utility model is to provide a new type of slingshot shell structure, which has the characteristics of reasonable structural design.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A novel slingshot shell structure includes a shell, a core, and a spring. The shell has a mounting groove, and the core and spring are both located within the mounting groove. The front side of the mounting groove extends through the end of the shell, and a stop is provided on the front side of the mounting groove. Gaps are left between the left and right sides of the stop and the sidewalls of the mounting groove for the core to pass through. One end of the spring abuts against the rear end of the stop, and the other end is lower than the inner end of the core. The front end of the stop protrudes from the front edge of the mounting groove.
[0005] Preferably, the protrusion of the stop is 0.2 mm.
[0006] Preferably, the height of the housing is 2.2 mm.
[0007] Preferably, the housing has a width of 3.15 mm and a length of 10.4 mm; the mounting groove has a depth of 1.6 mm and a width of 2.4 mm.
[0008] Preferably, recessed shoulders are provided on the left and right sides of the mounting groove.
[0009] Preferably, the concave shoulder is flush with the rear end of the stop block.
[0010] Preferably, the front end of the core has a hinge portion, and a limiting portion is formed between the hinge portion and the lower side of the front end of the core.
[0011] The main technical effects of this utility model are reflected in the following aspects: By setting the front end of the stop as a protruding structure, the point of contact between the hinge and the stop can move outward when the glasses' hinge rotates, thereby pulling the core out a greater distance and compressing the spring more, thus giving the hinge greater elasticity. After electroplating, the friction of the electroplated layer at the hinge can be reduced when the temples and temples are opened and closed. Attached Figure Description
[0012] Figure 1 This is a structural diagram of the slingshot shell in the embodiment; Figure 2 This is an exploded structural diagram of the slingshot casing in the embodiment; Figure 3 for Figure 2 Enlarged view of part A in the middle.
[0013] Reference numerals: 1. Housing; 11. Mounting groove; 12. Shoulder; 13. Gap; 2. Core; 21. Hinge; 22. Limiting part; 3. Spring; 4. Stop. Detailed Implementation
[0014] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.
[0015] Reference Figure 1-3 This embodiment provides a novel slingshot shell structure, including a shell 1, a core 2, and a spring 3.
[0016] The housing 1 has a height of 2.2 mm, a width of 3.15 mm, and a length of 10.4 mm. The housing 1 has a mounting groove 11 with a depth of 1.6 mm and a width of 2.4 mm. The core 2 and the spring 3 are both located within the mounting groove 11.
[0017] The front side of the mounting groove 11 extends through the end of the housing 1, and a stop 4 is provided on the front side of the mounting groove 11; the front end of the stop 4 protrudes from the front edge of the mounting groove 11, and preferably, the protrusion of the stop 4 is 0.2mm.
[0018] The left and right sides of the stop block 4 and the side wall of the mounting groove 11 have gaps 13 for the core body 2 to pass through; one end of the spring 3 abuts against the rear end of the stop block 4, and the other end is connected to the inner end of the core body 2.
[0019] In addition, recessed shoulders 12 are provided on the left and right sides of the mounting groove 11, and the recessed shoulders 12 are flush with the rear end of the stop block 4. By providing the recessed shoulders 12, the core 2 only needs to contact and rub against the side wall of the mounting groove 11 that is directly opposite the stop block 4, thereby reducing the wear of the core 2 during movement.
[0020] The front end of the core 2 has a hinge portion 21, and a limiting portion 22 is formed between the hinge portion 21 and the lower side of the front end of the core 2. In the natural state, the spring 3 pushes the core 2 back into the mounting groove 11, and the limiting portion 22 can hook onto the front edge of the mounting groove 11 to prevent the core 2 from continuing to move. In addition, the side wall of the limiting portion 22 is inclined towards the rear end of the core 2, preferably at an angle of 3 degrees.
[0021] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.
Claims
1. A novel slingshot shell structure, comprising a shell (1), a core (2), and a spring (3), wherein the shell (1) has a mounting groove (11), and the core (2) and the spring (3) are both located within the mounting groove (11); the front side of the mounting groove (11) extends through the end of the shell (1), characterized in that, A stop block (4) is provided on the front side of the mounting groove (11); the left and right sides of the stop block (4) and the side wall of the mounting groove (11) are provided with a gap (13) for the core (2) to pass through; one end of the spring (3) abuts against the rear end of the stop block (4), and the other end is lower than the inner end of the core (2); the front end of the stop block (4) protrudes from the front edge of the mounting groove (11).
2. The novel slingshot shell structure according to claim 1, characterized in that, The protrusion of the stop (4) is 0.2 mm.
3. The novel slingshot shell structure according to claim 2, characterized in that, The height of the shell (1) is 2.2 mm.
4. The novel slingshot shell structure according to claim 3, characterized in that, The housing (1) has a width of 3.15 mm and a length of 10.4 mm; the mounting groove (11) has a depth of 1.6 mm and a width of 2.4 mm.
5. The novel slingshot shell structure according to claim 1, characterized in that, The mounting groove (11) is also provided with recessed shoulders (12) on the left and right sides.
6. A novel slingshot shell structure according to claim 5, characterized in that, The concave shoulder (12) is flush with the rear end of the stop block (4).
7. The novel slingshot shell structure according to claim 1, characterized in that, The front end of the core (2) has a hinge (21), and a limiting part (22) is formed between the hinge (21) and the lower side of the front end of the core (2).