Jewel identification clamp

Abstract

The utility model discloses a gem identification clamp, and belongs to the technical field of gem identification. The gem identification clamp comprises a circular frame body, a first clamping rod and a second clamping rod are correspondingly arranged in the circular frame body, the first clamping rod penetrates through the circular frame body and is rotationally connected with the circular frame body through a bearing, and the end, close to the second clamping rod, of the first clamping rod is fixedly connected with a first clamping head; through the matched design of the second clamping rod, the sleeve, the bolt, the elastic spring and the square cylinder, the position of the second clamping rod can be moved according to the size of a gem, the distance between the second clamping head and the first clamping head can be adjusted, the second clamping head is pulled rightwards, the elastic spring is contracted, and the gem is placed between the first clamping head and the second clamping head; then the elastic spring is reset, the gemstone is clamped through the second clamping head and the first clamping head, proper clamping force can be provided for the gemstone, and meanwhile clamping is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of gem identification, in particular to a gem identification fixture. Background Art

[0002] Jewelry appraisal is the work of distinguishing the species, purity, synthesis, artificiality, treatment and some origin characteristics of all jewelry, jade and organic gemstones. It can accurately identify the authenticity of jewelry by eliminating counterfeit and imitation jewelry and jade, so as to protect the rights and interests of buyers.

[0003] A gem identification fixture with publication number: CN214818010U includes an annular plate, a first annular tube is fixed on the upper surface of the annular plate, a pair of annular sleeves are symmetrically fixed on the inner circumference of the first annular tube, circular shafts are inserted into the interiors of the two first annular tubes, arc plates are fixed on the outer circumferences of the two circular shafts, a first fixing column is fixed on the upper end of each of the arc plates, a pair of second fixing columns are fixed on the upper end of the first annular tube, and a tension spring is fixed between the first fixing column and the second fixing column located on the same side.

[0004] The utility model can quickly fix the gemstone by means of the tension spring, which is convenient for identification. However, fixing the gemstone by the elastic force of the tension spring is less applicable to the size of the gemstone. When the gemstone is large in size, the clamping force is large, which can easily damage the gemstone. When the gemstone is small in size, the clamping force is small, which can poorly fix the gemstone. Utility Model Content

[0005] The purpose of the utility model is to provide a gem identification fixture to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gem identification fixture, comprising a circular frame, in which a first clamping rod and a second clamping rod are correspondingly arranged, the first clamping rod passes through the circular frame and is rotatably connected to the circular frame through a bearing, and the first clamping rod is fixedly connected to an end of the first clamping rod close to the second clamping rod with a first clamping head, the second clamping rod is slidably connected to an end of the first clamping rod close to the first clamping rod, and the square tube is slidably connected to an end of the square tube away from the second clamping rod with a second clamping head, an elastic spring is arranged in the square tube to provide clamping force for the gem, and the two ends of the elastic spring are respectively connected to the second clamping rod and the second clamping head, the second clamping rod passes through the circular frame and slides in the circular frame along the central axis direction of the second clamping rod, and a locking assembly is installed at the end of the second clamping rod.

[0007] Preferably, the locking assembly comprises a sleeve, which is slidably mounted on the second clamping rod, passes through the circular frame and is rotatably connected to the circular frame via a bearing, and a bolt is installed on the sleeve.

[0008] Preferably, a connecting rod is provided in the circular frame, and two ends of the connecting rod are fixedly connected to the first clamping rod and the sleeve respectively.

[0009] Preferably, a planar groove is provided on one side of the circular frame close to the sleeve, a ring is fixedly sleeved on one end of the sleeve outside the circular frame, a spring telescopic tube is provided on the ring, and the telescopic end of the spring telescopic tube fits with the inner wall of the planar groove.

[0010] Preferably, a connecting column is provided above the circular frame, an elastic U-shaped clip is fixedly connected to the connecting column, a fill light is clamped in the elastic U-shaped clip, a rubber pad is provided inside the elastic U-shaped clip, and the fill light is embedded in the rubber pad, two connecting rods are rotatably connected to the bottom of the connecting column, and a slider is rotatably connected to one end of the connecting rod away from the connecting column, a sliding groove matched with the circular frame is provided on the upper surface of the circular frame, and the slider slides inside the sliding groove.

[0011] Preferably, a pressure sensor is installed on one side of the square tube close to the second clamping head, and the pressure sensor is located between the second clamping head and the square tube. A display screen is installed on the circular frame, and the display screen and the pressure sensor are electrically connected.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model, through the coordinated design of the second clamping rod, sleeve, bolt, elastic spring and square tube, can move the position of the second clamping rod according to the size of the gem, adjust the distance between the second clamping head and the first clamping head, pull the second clamping head to the right to contract the elastic spring, place the gem between the first clamping head and the second clamping head, then reset the elastic spring, clamp the gem through the second clamping head and the first clamping head, provide a suitable clamping force for the gem, and facilitate clamping.

[0014] 2. The utility model, through the coordinated design of the slider, the connecting column, the elastic U-shaped clip and the slide groove, can enable the fill light to move above the circular frame, thereby facilitating the fill light of the gemstone. At the same time, the angle of the fill light in the elastic U-shaped clip can be adjusted to facilitate the irradiation of the fill light. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the planar structure of the utility model.

[0017] Figure 3 It is a schematic diagram of the internal structure of the spring telescopic cylinder of the utility model.

[0018] In the figure: 1. circular frame; 2. flat groove; 3. spring telescopic cylinder; 4. second clamping rod; 5. sleeve; 6. circular ring; 7. square cylinder; 8. display screen; 9. first clamping head; 10. connecting column; 11. first clamping rod; 12. elastic U-shaped clamp; 13. rubber pad; 14. connecting rod; 15. slider; 16. slide groove; 17. fill light; 18. connecting rod; 19. bolt; 20. pressure sensor; 21. second clamping head; 22. elastic spring. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-3 The utility model provides a technical solution: a gem identification fixture, including a circular frame 1, a first clamping rod 11 and a second clamping rod 4 are correspondingly arranged in the circular frame 1, and the first clamping rod 11 and the second clamping rod 4 are symmetrically arranged with the central axis of the circular frame 1 as the center. The first clamping rod 11 penetrates the circular frame 1 and is rotatably connected to the circular frame 1 through a bearing, and a first clamping head 9 is fixedly connected to one end of the first clamping rod 11 close to the second clamping rod 4, and the head of the first clamping head 9 is concave inwardly, which is convenient for clamping gems.

[0021] The end of the second clamping rod 4 close to the first clamping rod 11 is slidably connected to the square tube 7, and the end of the square tube 7 away from the second clamping rod 4 is slidably connected to the second clamping head 21. An elastic spring 22 is arranged in the square tube 7 to provide clamping force for the gem, and the two ends of the elastic spring 22 are respectively connected to the second clamping rod 4 and the second clamping head 21. The second clamping rod 4 passes through the circular frame 1 and slides in the circular frame 1 along the central axis direction of the second clamping rod 4. The position of the second clamping rod 4 is moved according to the size of the gem, and the distance between the second clamping head 21 and the first clamping head 9 is adjusted. The second clamping head 21 is pulled to the right to shrink the elastic spring 22, and the gem is placed between the first clamping head 9 and the second clamping head 21. Then the elastic spring 22 is reset, and the gem is clamped by the second clamping head 21 and the first clamping head 9, which can provide a suitable clamping force for the gem and facilitate clamping.

[0022] The second clamping rod 4 is positioned by a locking assembly, which includes a sleeve 5, which is slidably mounted on the second clamping rod 4, and the sleeve 5 passes through the circular frame 1 and is rotatably connected to the circular frame 1 through a bearing. A bolt 19 is installed on the sleeve 5, and the bolt 19 passes through the sleeve 5 and contacts the outer surface of the second clamping rod 4. The second clamping rod 4 and the sleeve 5 can be locked by tightening the bolt 19.

[0023] A pressure sensor 20 is installed on one side of the square tube 7 close to the second clamping head 21, and the pressure sensor 20 is located between the second clamping head 21 and the square tube 7. A display screen 8 is installed on the circular frame 1, and the display screen 8 and the pressure sensor 20 are electrically connected. When the gem is placed between the first clamping head 9 and the second clamping head 21, the reaction force of the gem on the second clamping head 21 causes the second clamping head 21 to contact the pressure sensor 20, and the pressure is transmitted to the pressure sensor 20, and displayed on the display screen 8, so that the user can easily observe the force applied to the gem.

[0024] A planar groove 2 is provided on one side of the circular frame 1 close to the sleeve 5. A circular ring 6 is fixedly sleeved on one end of the sleeve 5 located outside the circular frame 1. A spring telescopic cylinder 3 is provided on the circular ring 6. The spring telescopic cylinder 3 is an existing structure, in which a compression spring is provided in two cylinders that slide and fit with each other, and the telescopic end of the spring telescopic cylinder 3 is in contact with the inner wall of the planar groove 2. Under the action of the compression spring, the telescopic end of the spring telescopic cylinder 3 is tightly attached to the planar groove 2, causing a certain amount of damping, so that the second clamping rod 4 is not easy to rotate without being subjected to force.

[0025] A connecting rod 18 is arranged in the circular frame 1, and both ends of the connecting rod 18 are respectively fixedly connected to the first clamping rod 11 and the sleeve 5. The arrangement of the connecting rod 18 enables the second clamping rod 4 and the first clamping rod 11 to rotate together. A connecting column 10 is arranged above the circular frame 1, and an elastic U-shaped clip 12 is fixedly connected to the connecting column 10, and a fill light 17 is clamped in the elastic U-shaped clip 12. A rubber pad 13 is arranged inside the elastic U-shaped clip 12, and the fill light 17 is embedded in the rubber pad 13. The bottom of the connecting column 10 is rotatably connected to two connecting rods 14, and the end of the connecting rod 14 away from the connecting column 10 is rotatably connected to a slider 15. A slide groove 16 adapted to the circular frame 1 is provided on the upper surface of the circular frame 1, and the slider 15 slides inside the slide groove 16. Through the coordinated design of the slider 15, the connecting column 10, the elastic U-shaped clip 12 and the slide groove 16, the fill light 17 can be moved above the circular frame 1, so as to facilitate the fill light of the gemstone. At the same time, the angle of the fill light 17 in the elastic U-shaped clip 12 can be adjusted to facilitate the irradiation of the fill light 17.

[0026] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the embodiments of the utility model have been shown and described, it is understandable to those of ordinary skill in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A gem identification fixture, comprising a circular frame (1), characterized in that: A first clamping rod (11) and a second clamping rod (4) are correspondingly arranged in the circular frame (1); the first clamping rod (11) passes through the circular frame (1) and is rotatably connected to the circular frame (1) through a bearing; an end of the first clamping rod (11) close to the second clamping rod (4) is fixedly connected to a first clamping head (9); an end of the second clamping rod (4) close to the first clamping rod (11) is slidably connected to a square tube (7); and an end of the square tube (7) away from the second clamping rod (4) is slidably connected to a second clamping head (21); an elastic spring (22) for providing a clamping force for the gemstone is arranged in the square tube (7), and two ends of the elastic spring (22) are respectively connected to the second clamping rod (4) and the second clamping head (21); the second clamping rod (4) passes through the circular frame (1) and slides in the circular frame (1) along the central axis direction of the second clamping rod (4); a locking assembly is installed at the end of the second clamping rod (4).

2. A gem identification fixture according to claim 1, characterized in that: The locking assembly comprises a sleeve (5), the sleeve (5) is slidably mounted on the second clamping rod (4), the sleeve (5) passes through the circular frame (1) and is rotatably connected to the circular frame (1) via a bearing, and a bolt (19) is installed on the sleeve (5).

3. A gem identification fixture according to claim 1, characterized in that: A connecting rod (18) is arranged in the circular frame (1), and two ends of the connecting rod (18) are fixedly connected to the first clamping rod (11) and the sleeve (5) respectively.

4. A gem identification fixture according to claim 1, characterized in that: A plane groove (2) is provided on one side of the circular frame (1) close to the sleeve (5); a circular ring (6) is fixedly sleeved on one end of the sleeve (5) located outside the circular frame (1); a spring telescopic cylinder (3) is provided on the circular ring (6); and the telescopic end of the spring telescopic cylinder (3) is in contact with the inner wall of the plane groove (2).

5. The gem identification fixture according to claim 1, characterized in that: A connecting column (10) is arranged above the circular frame (1), an elastic U-shaped clip (12) is fixedly connected to the connecting column (10), a fill light (17) is clamped inside the elastic U-shaped clip (12), a rubber pad (13) is arranged inside the elastic U-shaped clip (12), and the fill light (17) is embedded in the rubber pad (13), the bottom of the connecting column (10) is rotatably connected to two connecting rods (14), and one end of the connecting rod (14) away from the connecting column (10) is rotatably connected to a slider (15), and a slide groove (16) adapted to the circular frame (1) is provided on the upper surface of the circular frame (1), and the slider (15) slides inside the slide groove (16).

6. The gem identification fixture according to claim 1, characterized in that: A pressure sensor (20) is installed on one side of the square tube (7) close to the second clamping head (21), and the pressure sensor (20) is located between the second clamping head (21) and the square tube (7). A display screen (8) is installed on the circular frame (1), and the display screen (8) and the pressure sensor (20) are electrically connected.

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