Clamping device for jewelry product detection

By using a vacuum pump to create negative pressure to adsorb and hold the jewelry, combined with rotation adjustment and multi-angle observation of the structure, the problem of damage and falling of the jewelry by the clamping device is solved, and the stability and accuracy of the detection are improved.

CN223711405UActive Publication Date: 2025-12-23NANJING PRODUCT QUALITY SUPERVISION & INSPECTION INSTITUTE (NANJING QUALITY DEVELOPMENT & ADVANCED TECHNOLOGY APPLICATION RESEARCH INSTITUTE)
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Patent Information

Application Number
CN202423269705.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-23
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

Existing clamping devices are prone to causing minor damage or scratches when holding jewelry. If the clamping is too loose, fragile jewelry may fall off, while if it is too tight, it may break, affecting the testing results and increasing the risk of damage.

Method used

A negative pressure environment is created using an air pump. Jewelry is held in place by a soft membrane head and its position is adjusted by rotating the movable tube. The angle and height are adjusted by adjusting the shaft and rotating rod. A reflector and replaceable lenses are provided for multi-angle observation.

Benefits of technology

It achieves flexible clamping, avoids damage to the jewelry surface, ensures stable clamping, improves the comprehensiveness and accuracy of testing, and reduces the risk of jewelry damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a clamping device for jewelry product detection, which comprises a detection table and a support rod movably embedded on the detection table, one side of the detection table is fixedly provided with an air pump, the inner side of the support rod is embedded and fixedly provided with a fixed pipe, an air suction pipe for air circulation is embedded and connected between the air pump and the fixed pipe, and the air suction pipe is connected with the air pump. A movable pipe is movably installed on the inner side of the fixed pipe in an embedded mode, and a threaded groove is formed in the inner side of the fixed pipe. A negative pressure environment is formed through air suction of the air suction pump, at the moment, jewelry is placed on one side of the soft film head, the jewelry is adsorbed and fixed under the action of negative pressure, the length of the movable pipe in the fixed pipe can be adjusted according to needs by rotating the movable pipe, and then the detected position of the jewelry below the mirror disc is adjusted. The jewelry sucking and clamping device is simple in structure, can suck and clamp irregular jewelry under negative pressure, meanwhile avoids damage to the surfaces of the jewelry, and can suck away impurities on the jewelry and prevent the impurities from being sucked into the sucking pump through the filter screen under the negative pressure.
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Description

TECHNICAL FIELD

[0001] The utility model relates to jewelry detection clamping equipment field, specifically a kind of clamping appliance for jewelry product detection. BACKGROUND

[0002] When microscopic examination (such as observation with microscope) is carried out on jewelry, the clamping appliance can stably fix the jewelry in a suitable position, and for some irregularly shaped jewelry, such as some natural pearls or gem jewelry with complex modeling, a stable support point can be found by using the clamping appliance to prevent it from falling during detection, and then the jewelry is detected and observed.

[0003] The "jewelry product detection clamping device" described in the patent application number "CN202320841818.0" can adjust the front and rear positions of the gemstone by rotating the threaded rod II driven by the hand wheel, which is beneficial for detection and identification. At the same time, the up and down height of the gemstone can be adjusted by the lifting sleeve, so that the detection and identification of the gemstone can be more smooth and convenient, which is beneficial for actual use.

[0004] However, when some small or irregularly shaped jewelry is clamped and detected, the existing clamping appliance often causes slight damage or scratches to the jewelry by mechanical rigid clamping. In addition, when some fragile jewelry is detected at different angles, loose clamping can cause the jewelry to accidentally fall during detection, and tight clamping can cause the jewelry to break, which not only reduces the clamping and detection effect of the jewelry, but also greatly increases the risk of damage to the jewelry.

[0005] Therefore, we provide a clamping appliance for jewelry product detection. CONTENT OF THE UTILITY MODEL

[0006] The main purpose of the utility model is to provide a clamping appliance for jewelry product detection, which can effectively solve the problem that the existing clamping appliance often causes slight damage or scratches to the jewelry by mechanical rigid clamping, and in addition, when some fragile jewelry is detected at different angles, loose clamping can cause the jewelry to accidentally fall during detection, and tight clamping can cause the jewelry to break.

[0007] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0008] The utility model provides a kind of clamping appliance for jewelry product detection, including detection table and support rod that is embedded and movably installed on detection table, one side of the detection table is fixedly installed with suction pump, the inner side of the support rod is embedded and fixedly installed with fixed tube, suction tube for gas flow is connected between the suction pump and fixed tube, the inner side of the fixed tube is embedded and movably installed with movable tube, and the inner side of the fixed tube is provided with thread groove, the outer side of the movable tube is provided with rotating thread, and rotating thread is movably connected with thread groove by embedding, one side of the movable tube is embedded and installed with suction chuck, and the inner side of the suction chuck is fixedly installed with filter screen, one side of the suction chuck is embedded and installed with soft membrane head.

[0009] In the above-mentioned scheme, preferably, an adjusting shaft is embedded and movably installed on the upper side of one side of the detection table, and the support rod is movably embedded and installed on the detection table through the adjusting shaft, and a clamping plate is movably embedded and installed on one side of the support rod.

[0010] In the above-mentioned scheme, preferably, a mirror is provided below the suction chuck and movably embedded and installed on the inner side of the clamping plate, and a rotating rod is movably embedded and installed above the support rod.

[0011] In the above-mentioned scheme, preferably, the inner side of the rotating rod is provided with a thread tooth, the upper side of one side of the rotating rod is provided with a lifting platform, and the lifting platform is movably embedded and connected with the support rod.

[0012] In the above-mentioned scheme, preferably, the upper side of one side of the lifting platform is provided with a thread clamping groove, and the lifting platform is movably embedded and connected with the support rod through the thread clamping groove and the thread tooth.

[0013] In the above-mentioned scheme, preferably, a detection cylinder is fixedly installed on one side of the lifting platform, and a mirror disc is movably embedded and installed above the suction chuck and on the detection cylinder.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] (1) The clamping appliance for jewelry product detection is provided with a suction pump, a movable tube and a suction chuck, etc., a negative pressure environment is formed by suction of the suction pump, jewelry is placed on one side of the soft membrane head and is fixed by suction under the action of negative pressure, the length of the movable tube in the fixed tube can be adjusted by rotating the movable tube, and the position of the jewelry under the mirror disc for detection is adjusted, the soft membrane head is soft in texture and can clamp irregular jewelry under negative pressure, and damage to the surface of the jewelry is avoided, and secondly, the filter screen can suck away impurities on the jewelry under negative pressure and prevent impurities from being sucked into the suction pump.

[0016] (2) the kind of jewelry product detection clamping appliance, through setting up installed adjusting shaft, rotating lever and screw tooth structure, adjusting shaft makes support rod rotation adjustment angle, rotating lever rotation is driven lifting platform moves along support rod through screw tooth and thread slot meshing, realize detection cylinder height adjustment, mirror disc can replace different lens combination, reflector can reflect the situation of jewelry bottom, convenient for detection personnel to observe the characteristics of jewelry bottom from above, make detection personnel can observe and detect jewelry from different angle and height, improve the comprehensiveness and accuracy of detection. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced the drawings needed to be used in the embodiment, it should be understood, the following drawings only shows some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings.

[0018] Figure 1 It is the overall structure schematic diagram of the utility model.

[0019] Figure 2 It is the connection structure split schematic diagram of screw tooth and thread slot in the utility model.

[0020] Figure 3 It is the split structure schematic diagram of movable pipe in the utility model.

[0021] Figure 4 It is the local structure schematic diagram of fixed pipe in the utility model.

[0022] Figure 5 It is the utility model Figure 4 Local structure amplification schematic diagram in A place in the utility model.

[0023] Figure 1 - Figure 5 In: 1, detection table;2, suction pump;3, suction pipe;301, fixed pipe;302, movable pipe;303, adsorption chuck;304, filter screen;305, soft membrane head;4, adjusting shaft;5, support rod;6, clamping plate;7, reflector;8, rotating lever;801, screw tooth;9, lifting platform;901, thread slot;10, detection cylinder;11, mirror disc. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the following will be further described the utility model in conjunction with specific embodiment.

[0025] For example Figure 1 - Figure 5As shown, in this embodiment, a clamping device for testing jewelry products includes a testing platform 1 and a support rod 5 that is movably mounted on the testing platform 1. A vacuum pump 2 is fixedly mounted on one side of the testing platform 1. A fixed tube 301 is fixedly mounted on the inner side of the support rod 5. A vacuum pipe 3 for gas flow is nested between the vacuum pump 2 and the fixed tube 301. A movable tube 302 is movably mounted on the inner side of the fixed tube 301. The inner side of the fixed tube 301 is provided with a threaded groove. The outer side of the movable tube 302 is provided with a rotating thread. The rotating thread and the threaded groove are movably connected. An adsorption clamp 303 is mounted on one side of the movable tube 302. A filter screen 304 is fixedly mounted on the inner side of the adsorption clamp 303. A soft membrane head 305 is mounted on one side of the adsorption clamp 303.

[0026] Specifically, with this setup, when clamping and inspecting jewelry, the vacuum pump 2 is activated. The vacuum pump 2 extracts air from the fixed tube 301, the connected movable tube 302, and the adsorption clamp 303 through the vacuum pipe 3, creating a negative pressure environment. At this time, the jewelry is placed on one side of the soft membrane head 305, and it is adsorbed and fixed under the negative pressure. By rotating the movable tube 302, its outer rotating thread engages with the inner thread groove of the fixed tube 301, allowing for a movable connection. The length of the movable tube 302 within the fixed tube 301 can be adjusted as needed, thereby adjusting the position of the jewelry under the mirror plate 11 for inspection. Because the soft membrane head 305 is soft, it can adsorb and clamp irregular jewelry under negative pressure, while avoiding damage to the jewelry surface. Furthermore, the filter screen 304 can remove impurities from the jewelry under negative pressure and prevent impurities from being sucked into the vacuum pump 2. At the same time, by changing different adsorption clamps 303 inserted into the movable tube 302, different jewelry can be adsorbed and clamped.

[0027] like Figure 1 - Figure 5 As shown, in this embodiment, an adjustment shaft 4 is fitted and installed on the upper side of one side of the testing platform 1, and a support rod 5 is fitted and movably installed on the testing platform 1 through the adjustment shaft 4. A rotating rod 8 is fitted and movably installed on the upper side of the support rod 5. The inner side of the rotating rod 8 is provided with threaded teeth 801. A lifting platform 9 is provided on one side of the rotating rod 8, and the lifting platform 9 is fitted and movably connected to the support rod 5. A threaded groove 901 is provided on one side of the lifting platform 9, and the lifting platform 9 is fitted and movably connected to the support rod 5 through the engagement of the threaded groove 901 and the threaded teeth 801.

[0028] Specifically, with this setup, the support rod 5 can be rotated on the testing table 1 by adjusting the shaft 4 to adjust the operating angle. When the rotating rod 8 is rotated, the threaded teeth 801 on its inner side engage with the threaded groove 901 on one side of the lifting table 9. Since the lifting table 9 and the support rod 5 are connected in an interlocking manner, the lifting table 9 is moved up and down along the support rod 5 to adjust the height position of the testing cylinder 10.

[0029] As Figure 1 - Figure 5 In this embodiment, one side of the support rod 5 is embedded with the clamping plate 6, the lower side of the suction chuck 303 is provided with the reflector 7, and the reflector 7 is embedded and movably installed on the inner side of the clamping plate 6. One side of the lifting platform 9 is fixedly installed with the detection cylinder 10, the upper side of the suction chuck 303 is provided with the mirror disc 11, and the mirror disc 11 is embedded and movably installed on the detection cylinder 10.

[0030] Specifically, due to the embedded installation of the reflector 7 on the inner side of the clamping plate 6 and the location of the reflector 7 below the suction chuck 303, when the bottom of the jewelry is observed or detected, the reflector 7 can reflect the situation of the bottom of the jewelry, which facilitates the observation of the features of the bottom of the jewelry from above by the detection personnel. Since the mirror disc 11 is embedded and installed on the detection cylinder 10, different lens combinations (such as magnifying glasses with different magnifications) can be selected according to the detection requirements, which are used for more detailed observation and detection of the jewelry.

[0031] It should be noted that when the clamping device is used for jewelry product detection, first, in the process of clamping and detecting the jewelry, the suction pump 2 is started first. The suction pump 2 extracts the air inside the fixed pipe 301, the movable pipe 302 connected thereto, and the suction chuck 303 through the suction pipe 3, thereby creating a negative pressure environment. In this environment, the jewelry is placed on one side of the soft film head 305 and is adsorbed and fixed under the action of negative pressure. By rotating the movable pipe 302, the rotating threads on the outer side of the movable pipe 302 are movably connected with the thread grooves on the inner side of the fixed pipe 301. The user can adjust the length of the movable pipe 302 in the fixed pipe 301 according to the requirements, thereby adjusting the detection position of the jewelry below the mirror disc 11. In addition, the filter screen 304 can adsorb impurities on the jewelry under the action of negative pressure and prevent these impurities from being sucked into the suction pump 2. By replacing the suction chuck 303 and inserting it into the movable pipe 302, various jewelry can be adsorbed and clamped. The adjustment shaft 4 enables the support rod 5 to rotate on the detection table 1 to adjust the angle of use. When the rotating rod 8 is rotated, the thread teeth 801 on the inner side of the rotating rod 8 are engaged with the thread clamping grooves 901 on one side of the lifting platform 9, so that the lifting platform 9 moves up and down along the support rod 5, thereby adjusting the height position of the detection cylinder 10. When the bottom of the jewelry is observed or detected, the reflector 7 can reflect the situation of the bottom of the jewelry, which facilitates the observation of the features of the bottom of the jewelry from above by the detection personnel. Since the mirror disc 11 is embedded and installed on the detection cylinder 10, the user can select different lens combinations according to the detection requirements, so as to observe and detect the jewelry more carefully.

[0032] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific implementation. The utility model is not limited by the above embodiments, and the above embodiments and the description in the specification are only the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which all fall within the scope of the utility model. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A clamping device for testing jewelry products, comprising a testing table (1) and a support rod (5) movably mounted on the testing table (1), characterized in that: A vacuum pump (2) is fixedly installed on one side of the testing platform (1). A fixed tube (301) is fitted and fixedly installed on the inner side of the support rod (5). A vacuum pipe (3) for gas flow is nested between the vacuum pump (2) and the fixed tube (301). A movable tube (302) is fitted and movably installed on the inner side of the fixed tube (301). The inner side of the fixed tube (301) is provided with a threaded groove. The outer side of the movable tube (302) is provided with a rotating thread. The rotating thread and the threaded groove are fitted and movably connected. An adsorption clamp (303) is fitted and installed on one side of the movable tube (302). A filter screen (304) is fixedly installed on the inner side of the adsorption clamp (303). A soft membrane head (305) is fitted and installed on one side of the adsorption clamp (303).

2. The clamping device for testing jewelry products according to claim 1, characterized in that, An adjustment shaft (4) is fitted and installed on one side of the testing platform (1), and a support rod (5) is fitted and movably installed on the testing platform (1) through the adjustment shaft (4). A clamping plate (6) is fitted and movably installed on one side of the support rod (5).

3. The clamping device for testing jewelry products according to claim 1, characterized in that, A reflector (7) is provided below the adsorption clamp (303), and the reflector (7) is fitted and movably installed on the inner side of the clamp (6). A rotating rod (8) is fitted and movably installed above the support rod (5).

4. The clamping device for testing jewelry products according to claim 3, characterized in that, The inner side of the rotating rod (8) is provided with threaded teeth (801), and a lifting platform (9) is provided on one side of the rotating rod (8), and the lifting platform (9) is engaged and movably connected with the support rod (5).

5. A clamping device for testing jewelry products according to claim 4, characterized in that, The lifting platform (9) has a threaded slot (901) on one side, and the lifting platform (9) is movably connected to the support rod (5) through the engagement of the threaded slot (901) and the threaded teeth (801).

6. A clamping device for testing jewelry products according to claim 5, characterized in that, A detection cylinder (10) is fixedly installed on one side of the lifting platform (9), and a mirror plate (11) is provided above the adsorption clamp (303), and the mirror plate (11) is fitted and movably installed on the detection cylinder (10).

Citation Information

Patent Citations

  • Clamping device for jewelry product detection

    CN219212931U