Clamp for gem identification
By designing clamping components with arc-shaped and strip-shaped clamps and supplementary lighting, the problem of unstable clamping of irregularly shaped gemstones by existing gemstone identification clamps has been solved, achieving stable clamping and detailed identification.
Patent Information
- Application Number
- CN202520433975.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing gem identification clamps have poor gripping stability for irregularly shaped gems, making it difficult to achieve stable gripping.
The design incorporates a clamping assembly consisting of curved and strip-shaped clamps. Four clamping rods open to hold the gemstone on all four sides, and pull rings and hooks enable one-handed operation. Combined with a supplementary light, it provides ample illumination for easy identification.
It improves the holding stability of irregularly shaped gemstones, can adapt to gemstones of different shapes, and provides good lighting conditions for easy detailed identification.
Smart Images

Figure CN223903757U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to gem identification technical field, more specifically, it is especially related to a clamp for gem identification. BACKGROUND
[0002] Gem identification is the work of identifying the species, purity, synthesis, artificial processing and part of the origin characteristics of all gemstones and organic gemstones, which can eliminate counterfeit imitation counterfeit gemstones. Corresponding clamps are needed during identification.
[0003] Chinese patent publication number CN 216883517 U discloses a special clamp for gem identification. The clamp includes a guiding table with a clamping mechanism on the surface of the identification table, a fixed plate, and a screw cylinder. The movable plate moves in the guiding groove of the guiding table through the guiding block. After the gem is placed between the movable plate and the fixed plate, the threaded bolt is continuously screwed into the screw cylinder. After the threaded bolt is unscrewed from the screw cylinder, it can move towards the gem and the fixed plate. As the movable plate gradually approaches the fixed plate, the gem can be better clamped between the movable plate and the fixed plate, facilitating the clamping identification of the gem. However, the clamping method is two-sided clamping, which is not suitable for irregularly shaped gems as it only has two supporting points and is not stable. SUMMARY
[0004] To solve the above technical problems, the utility model provides a clamp for gem identification to solve the above problems.
[0005] A clamp for gem identification includes a support plate with a through hole in the middle. A support ring is fixedly connected to the top of the support plate. A torsional spring hinge is fixedly connected to the top of the support ring. A clamping rod is fixedly connected to the top of the torsional spring hinge. A clamping plate is fixedly connected to the top of the clamping rod. A clamping assembly is movably installed on the inner side of the clamping plate. A pull rope is fixedly connected to the outer side of the clamping rod. A pull ring is fixedly connected to the bottom of the pull rope. A pull hook is fixedly connected to the top of the support plate. The inner wall of the pull ring movably sleeves the top of the pull hook.
[0006] Preferably, the clamping assembly includes a connecting plate one and a connecting plate two. A screw one is fixedly connected to one side of the connecting plate one. An arc-shaped clamping block is fixedly connected to the other side of the connecting plate one. A screw two is fixedly connected to one side of the connecting plate two. A strip-shaped clamping block is fixedly connected to the other side of the connecting plate two. The inner wall of the screw one away from the connecting plate one and the inner wall of the screw two away from the connecting plate two are threadedly connected to the screw seat.
[0007] Preferably, the top of the support ring is fixedly connected to a vertical plate. The outer side of the vertical plate is fixedly connected to a soft pad. The soft pad away from the vertical plate is attached to the inner side of the clamping rod.
[0008] Preferably, the bottom of the support plate is fixedly connected with support columns, the bottom of the support column is fixedly connected with a bottom plate, the top center of the bottom plate is fixedly connected with a light supplementing lamp, and the light supplementing lamp is located directly below the through hole of the support plate.
[0009] Preferably, the top side of the bottom plate is fixedly connected with a storage battery, and the light supplementing lamp and the storage battery are fixedly connected with a power supply line.
[0010] Compared with the prior art, the utility model has the advantages of the following:
[0011] In the utility model, the four clamping rods are opened in sequence, one-hand operation is facilitated by cooperation of the pull ring and the pull hook, the four edges of the gem are clamped by the four arc-shaped clamping blocks, stability is greatly improved, the problem that the clamping mode is two-side clamping, only two supporting points are available for the irregularly-shaped gem, and the gem is difficult to clamp stably and has poor stability is solved, when the gem shape is more special, the arc-shaped clamping block is taken off from the threaded seat and replaced by the strip-shaped clamping block, and the point-shaped support can better adapt to the shape of the gem.
[0012] In the utility model, the arc-shaped clamping block, the strip-shaped clamping block and the light supplementing lamp are arranged, the light supplementing lamp projects light upward, the gem is located directly above the through hole of the support plate after being clamped by the four arc-shaped clamping blocks or the four strip-shaped clamping blocks, the light projected upward by the light supplementing lamp can find the bottom of the gem sufficiently, the details of the gem are facilitated to be identified, and the gem is located above the support ring, and the side surface of the gem is facilitated to be observed. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is the whole structure schematic diagram of the utility model;
[0014] Figure 2 It is the structure dismounting schematic diagram of the support plate and the bottom plate of the utility model;
[0015] Figure 3 It is the clamping assembly structure dismounting schematic diagram of the utility model;
[0016] Figure 4 It is the strip-shaped clamping block structure schematic diagram of the utility model.
[0017] In the drawing, the corresponding relationship between the component name and the drawing number is:
[0018] 1, support plate, 2, support ring, 3, torsion spring hinge, 4, clamping rod, 5, clamping plate, 6, threaded seat, 7, pull rope, 8, pull ring, 9, pull hook, 10, vertical plate, 11, soft pad, 12, screw rod one, 13, connecting plate one, 14, arc-shaped clamping block, 15, support column, 16, bottom plate, 17, light supplementing lamp, 18, storage battery, 19, power supply line, 20, screw rod two, 21, connecting plate two, 22, strip-shaped clamping block. Detailed Implementation
[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0020] Example 1:
[0021] Please see Figures 1-4 This utility model provides a technical solution, including a support plate 1, an opening in the middle of the support plate 1, a support ring 2 fixedly connected to the top opening of the support plate 1, a torsion spring hinge 3 fixedly connected to the top of the support ring 2, a clamping rod 4 fixedly connected to the top of the torsion spring hinge 3, a clamping plate 5 fixedly connected to the top of the clamping rod 4, a clamping component movably installed on the inner side of the clamping plate 5, a pull rope 7 fixedly connected to the outer side of the clamping rod 4, a pull ring 8 fixedly connected to the bottom of the pull rope 7, a hook 9 fixedly connected to the top of the support plate 1, and the top of the hook 9 movably sleeved on the inner wall of the pull ring 8.
[0022] The clamping assembly includes a first connecting plate 13 and a second connecting plate 21. A first screw 12 is fixedly connected to one side of the first connecting plate 13, and an arc-shaped clamping block 14 is fixedly connected to the other side of the first connecting plate 13. A second screw 20 is fixedly connected to one side of the second connecting plate 21, and a strip-shaped clamping block 22 is fixedly connected to the other side of the second connecting plate 21. The side of the first screw 12 away from the first connecting plate 13 and the side of the second screw 20 away from the second connecting plate 21 are threadedly connected to the inner wall of the threaded seat 6. A vertical plate 10 is fixedly connected to the top of the support ring 2. A soft pad 11 is fixedly connected to the outer side of the vertical plate 10. The side of the soft pad 11 away from the vertical plate 10 is attached to the inner side of the clamping rod 4.
[0023] In this embodiment: First, pull the pull rings 8 on the sides of the two opposing clamping rods 4 to gradually open the two opposing clamping rods 4. Then, put the two pull rings 8 on the corresponding hooks 9, keeping the two clamping rods 4 in the open state. Then, hold the gemstone with one hand and pull the other two pull rings 8 with the other hand to gradually open the other two clamping rods 4 to the extent that they can clamp the gemstone. Place the gemstone between the two arc-shaped clamping blocks 14, release the pull rings 8, and the torsion spring in the torsion spring hinge 3 returns to its original position, thus using the two arc-shaped clamping blocks 14 to initially clamp the gemstone. Then, remove the two pull rings 8 from the hooks 9 to return the two clamping rods 4 to their original position. Thus, the four arc-shaped clamping blocks 14 are used to clamp the four sides of the gemstone, which greatly improves stability and solves the problem that the clamping method is based on clamping from both sides, which makes it difficult to clamp the irregularly shaped gemstone with only two support points and results in poor stability.
[0024] The arc-shaped clamping blocks 14 are arc-shaped and can well adapt to the regular-shaped gemstones, when the gemstone shape is special, the arc-shaped clamping blocks 14 are removed from the threaded seats 6 and are replaced by the strip-shaped clamping blocks 22, and the point-shaped support can better adapt to the shape of the gemstone, and the vertical plate 10 and the soft pad 11 play a positioning role, so that the four clamping rods 4 are in the vertical state when not working.
[0025] Embodiment two:
[0026] Please refer to Figures 1-4 On the basis of embodiment one, the utility model provides a technical scheme: the bottom four corners of support plate 1 are all fixedly connected with support column 15, the bottom of support column 15 is fixedly connected with bottom plate 16, the top center of bottom plate 16 is fixedly connected with light supplementing lamp 17, light supplementing lamp 17 is located just below the through -hole of support plate 1, the top one side of bottom plate 16 is fixedly connected with battery 18, and light supplementing lamp 17 and battery 18 are fixedly connected with power supply line 19 between them.
[0027] In this embodiment: battery 18 supplies power for light supplementing lamp 17 through power supply line 19, light supplementing lamp 17 projects light upward, after the gemstone is clamped by four arc-shaped clamping blocks 14 or four strip-shaped clamping blocks 22, the gemstone is located just above the through -hole of support plate 1, at this time, the light projected upward by light supplementing lamp 17 can fully find the bottom of the gemstone, and it is convenient to identify the details of the gemstone, and at this time, the gemstone is located above support ring 2, and it is convenient to observe the side of the gemstone.
[0028] Working principle: first, pull the pull ring 8 opposite the side edge of the two clamping rods 4, so that the two clamping rods 4 gradually open, then put the two pull rings 8 on the corresponding pull hooks 9, keep the two clamping rods 4 in the open state, then hold the gemstone with one hand, and pull the other two pull rings 8 with the other hand, so that the other two clamping rods 4 gradually open to the extent that the gemstone can be clamped, place the gemstone between the two arc-shaped clamping blocks 14, release the pull ring 8, and the clamping rod 4 is reset by the restoring force of the torsional spring in the torsional spring hinge 3, so that the gemstone is preliminarily clamped by the two arc-shaped clamping blocks 14, then the two pull rings 8 are removed from the pull hooks 9, so that the two clamping rods 4 are also reset, so that the four edges of the gemstone are clamped by the four arc-shaped clamping blocks 14, when the gemstone shape is special, the arc-shaped clamping blocks 14 are removed from the threaded seats 6 and are replaced by the strip-shaped clamping blocks 22, and the point-shaped support can better adapt to the shape of the gemstone, battery 18 supplies power for light supplementing lamp 17 through power supply line 19, light supplementing lamp 17 projects light upward, after the gemstone is clamped by four arc-shaped clamping blocks 14 or four strip-shaped clamping blocks 22, the gemstone is located just above the through -hole of support plate 1, at this time, the light projected upward by light supplementing lamp 17 can fully find the bottom of the gemstone, and it is convenient to identify the details of the gemstone.
[0029] The embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments were chosen and described in order to best explain the principles of the present application and its practical application, and to thereby enable others skilled in the art to best utilize the present application with various modifications as are suited to the particular use contemplated.
Claims
1. A gemstone identification jig comprising a support plate (1) characterised in that: The middle part of the support plate (1) is provided with an opening, the top of the support plate (1) is fixedly connected with a support ring (2), the top of the support ring (2) is fixedly connected with a torsion spring hinge (3), the top of the torsion spring hinge (3) is fixedly connected with a clamping rod (4), the top of the clamping rod (4) is fixedly connected with a clamping plate (5), the inner side of the clamping plate (5) is movably installed with a clamping assembly, the outer side of the clamping rod (4) is fixedly connected with a pull rope (7), the bottom of the pull rope (7) is fixedly connected with a pull ring (8), the top of the support plate (1) is fixedly connected with a pull hook (9), and the inner wall of the pull ring (8) movably sleeves the top of the pull hook (9).
2. The gemstone clamp of claim 1, wherein: The clamping assembly comprises a connecting plate one (13) and a connecting plate two (21), one side of the connecting plate one (13) is fixedly connected with a screw rod one (12), the other side of the connecting plate one (13) is fixedly connected with an arc-shaped clamping block (14), one side of the connecting plate two (21) is fixedly connected with a screw rod two (20), the other side of the connecting plate two (21) is fixedly connected with a strip-shaped clamping block (22), and the inner wall of the screw rod one (12) away from the connecting plate one (13) and the inner wall of the screw rod two (20) away from the connecting plate two (21) are threadedly connected with a threaded seat (6).
3. The gemstone clamp of claim 1, wherein: The top of the support ring (2) is fixedly connected with a vertical plate (10), the outer side of the vertical plate (10) is fixedly connected with a soft pad (11), and the inner side of the soft pad (11) away from the vertical plate (10) is attached to the clamping rod (4).
4. The gemstone clamp of claim 1, wherein: The bottom of the support plate (1) is fixedly connected with a support column (15), the bottom of the support column (15) is fixedly connected with a bottom plate (16), the top center of the bottom plate (16) is fixedly connected with a light supplementing lamp (17), and the light supplementing lamp (17) is located directly below the opening of the support plate (1).
5. The gemstone clamp of claim 4, wherein: The top side of the bottom plate (16) is fixedly connected with a storage battery (18), and the light supplementing lamp (17) and the storage battery (18) are fixedly connected with a power supply wire (19).
Citation Information
Patent Citations
Special fixture for jewel identification
CN216883517U