Jewelry detection support with built-in magnifying glass assembly

Abstract

The utility model relates to the technical field of jewelry detection equipment, in particular to a jewelry detection support with a built-in magnifier component, which comprises a base, a support arm, an objective table and a magnifier module. A first supporting column is arranged on the base, a second supporting arm is installed on the first supporting column through a rotary connecting piece, and an objective table is arranged at the tail end of the second supporting arm. The magnifying lens module is installed on the second supporting arm through a sliding connecting piece. The lens assembly is embedded in the shell, and the position of the lens assembly is adjusted through an adjusting mechanism. According to the jewelry detection device, multi-dimensional adjustment of the magnifying lens module can be achieved, different jewelry detection requirements are met, and meanwhile the detection effect and operation convenience are improved through the light source module and the magnetic fixing design.

Description

TECHNICAL FIELD

[0001] The utility model belongs to jewelry detection equipment technical field, specifically is a kind of jewelry detection support of built-in magnifying glass subassembly. BACKGROUND

[0002] In the field of jewelry detection, the traditional detection method usually relies on handheld magnifying glass or microscope for observation, which requires the detection personnel to maintain a fixed posture for a long time, which is easy to cause fatigue, and the convenience and efficiency of operation are also limited to a certain extent. Although some jewelry detection equipment on the market is equipped with magnifying glass subassembly, most of them are designed externally, which has the problems of large space occupation and inconvenient adjustment. In addition, the external magnifying glass subassembly may affect the accuracy of detection due to light reflection or position deviation during use, and has poor adaptability to different sizes of jewelry, which is difficult to meet the diversified detection needs. SUMMARY

[0003] To solve the problems of the prior art, the utility model adopts the technical scheme of a jewelry detection support with built-in magnifying glass subassembly, which comprises a base, a support arm, a sample holder and a magnifying glass module. A first support column extending vertically is provided on the base, a second support arm extending horizontally is installed on the top of the first support column through a rotary connecting piece, a third support column extending vertically is provided at the end of the second support arm away from the first support column, and a sample holder is fixedly installed at the bottom of the third support column. The magnifying glass module comprises a shell, a lens assembly and an adjusting mechanism. The shell is installed on the second support arm through a sliding connecting piece, the lens assembly is embedded in the shell, and the adjusting mechanism is used to adjust the position of the lens assembly.

[0004] Preferably, the first support column and the base are fixed by screw connection, the bottom of the first support column is provided with an external thread segment, the center of the base is provided with an internal thread hole, and the external thread segment and the internal thread hole cooperate to fix the first support column. The rotary connecting piece comprises a spherical joint provided at the top of the first support column and a spherical clamping groove provided at one end of the second support arm. The spherical joint is embedded in the spherical clamping groove and fixed by a locking bolt. The locking bolt penetrates the spherical clamping groove and contacts the surface of the spherical joint to apply clamping force.

[0005] Preferably, the end of the second support arm close to the first support column is provided with a sliding groove extending along the axis direction, a sliding block is slidingly installed in the sliding groove, and the sliding block is fixed with the sliding connecting piece by screw connection. The sliding connecting piece comprises an L-shaped bracket provided on the sliding block. The vertical section of the L-shaped bracket is fixed with the sliding block by a bolt. The horizontal section of the L-shaped bracket is provided with a guide hole penetrating in the vertical direction. The top of the shell is provided with a mounting hole aligned with the guide hole. A positioning pin is inserted in the guide hole and the mounting hole.

[0006] Preferably, the housing has a lens track extending vertically inside. The lens assembly includes a main lens and an auxiliary lens, which are respectively mounted in the lens track via sliding blocks. The sliding blocks have a rack structure on their sides. The adjustment mechanism includes two gears and a knob. The two gears are respectively engaged with the racks corresponding to the main lens and the auxiliary lens. The knob is connected to the two gears via a coaxially mounted transmission shaft. When the knob rotates, it drives the gears to rotate and drives the sliding block to move along the lens track.

[0007] Preferably, the platform includes a fixed plate and a movable plate. The fixed plate is fixed to the bottom of the third support column by bolts. The upper surface of the fixed plate is provided with a T-shaped groove extending in the horizontal direction. The bottom of the movable plate is provided with a T-shaped protrusion that matches the T-shaped groove. The movable plate is fitted into the T-shaped groove through the T-shaped protrusion and can slide in the horizontal direction. The upper surface of the movable plate is provided with a limiting hole extending in the vertical direction. A limiting rod is inserted into the limiting hole. An elastic pad is provided on the top of the limiting rod. The elastic pad fits against the upper surface of the movable plate after the limiting rod is inserted into the limiting hole.

[0008] Preferably, the upper surface of the movable plate is provided with a plurality of grooves arranged in a horizontal direction, and magnetic sheets are embedded in the grooves for adsorbing metal jewelry; the side of the fixed plate is provided with a scale extending in a horizontal direction, and the side of the movable plate is provided with a pointer aligned with the scale, the pointer being used to indicate the moving distance of the movable plate relative to the fixed plate.

[0009] Preferably, the lens assembly further includes a light source module, which includes LED beads and a light guide plate. The LED beads are embedded in the inner wall of the housing, and the light guide plate is disposed between the main lens and the auxiliary lens. The surface of the light guide plate is provided with a number of microprism structures, which distribute the light emitted by the LED beads evenly to the detection area. The inner wall of the housing is provided with a reflective coating, which is used to reduce light scattering and increase light intensity.

[0010] Preferably, the adjustment mechanism further includes a damping component, which includes a friction plate disposed at the bottom of the knob and an annular groove disposed on the inner wall of the housing. The friction plate is embedded in the annular groove and provides damping force when the knob is rotated. The outer surface of the knob is provided with anti-slip texture, which is evenly distributed along the circumference of the knob.

[0011] Preferably, the sliding connector further includes an elastic limiting component, which includes a spring groove at the bottom of the horizontal section of the L-shaped bracket, a compression spring installed in the spring groove, a steel ball at the top of the compression spring, the steel ball extending out of the spring groove and contacting the inner wall of the slide groove; the inner wall of the slide groove is provided with a plurality of limiting grooves arranged along the axial direction, and the steel ball is embedded in the limiting groove under the elastic force of the compression spring, thereby realizing the positioning of the sliding connector.

[0012] Preferably, the bottom of the outer shell is provided with a transparent protective cover, which is fixed to the outer shell by a snap-fit ​​method. The surface of the transparent protective cover is provided with an anti-reflective coating to reduce external light interference. The top of the outer shell is provided with heat dissipation holes, and a dustproof mesh is installed in the heat dissipation holes to prevent dust from entering the interior of the outer shell.

[0013] In the above technical solution, the first support column and the base are connected by a thread to achieve height adjustment; the rotating connector uses a ball joint and a ball groove to achieve angle adjustment of the second support arm, thereby meeting different detection needs; the sliding connector uses a slider and a groove to achieve horizontal position adjustment of the magnifying glass module, and uses an elastic limiting component to achieve precise positioning; the lens assembly uses an adjustment mechanism to adjust the relative position of the main lens and the auxiliary lens, thereby adapting to the detection needs of jewelry of different sizes and shapes; the stage uses a movable plate and a fixed plate to achieve horizontal fine adjustment, and uses a magnetic sheet and a limiting rod to improve the stability of jewelry fixation; the light source module uses a light guide plate and a reflective coating to improve the uniformity and intensity of illumination, further optimizing the detection effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention, showing the assembly relationship of the base, the first support column, the second support arm, the third support column, the stage, and the magnifying glass module;

[0015] Figure 2 This is a schematic diagram of the internal structure of the magnifying glass module, focusing on the arrangement of the lens assembly, adjustment mechanism, and light source module;

[0016] Figure 3 This is an exploded view of the stage, showing the connection relationships between the fixed plate, movable plate, limiting rod, and magnetic sheet.

[0017] Figure 4 This is a schematic diagram of the cooperation structure between the sliding connector and the second support arm, highlighting the installation details of the slide groove, slider, and elastic limit component.

[0018] The attached figures are labeled as follows:

[0019] 1. Base; 2. First support column; 3. Second support arm; 4. Third support column; 5. Stage; 6. Magnifying glass module; 7. Lens assembly; 8. Adjustment mechanism; 9. Fixing plate; 10. Movable plate; 11. Limiting rod; 12. Magnetic sheet; 13. Slide groove; 14. Slider; 15. Elastic limiting component; 16. Light source module; 17. Transparent protective cover. Detailed Implementation

[0020] This utility model relates to a jewelry testing bracket with a built-in magnifying glass assembly, the specific implementation of which is described in conjunction with the attached diagram.Figure 1 To be continued Figure 4 A detailed description is provided. This jewelry testing stand includes a base 1, a first support column 2, a second support arm 3, a third support column 4, a stage 5, and a magnifying glass module 6. The various components achieve their overall function through specific connections and cooperation methods.

[0021] The base 1 is the fundamental component of the entire device. Its upper surface has a centrally located internally threaded hole for threaded connection with the externally threaded section of the first support column 2. The first support column 2 extends vertically and has an externally threaded section at its bottom. When the externally threaded section is screwed into the internally threaded hole, the first support column 2 is fixed to the base 1. By rotating the first support column 2, its height relative to the base 1 can be adjusted, thereby changing the detection height of the entire device. A spherical connector is located at the top of the first support column 2, and this connector is fitted into a spherical groove at one end of the second support arm 3. A locking bolt is located on the inner wall of the spherical groove, passing through the groove and contacting the surface of the spherical connector. Tightening the locking bolt applies clamping force, fixing the spherical connector in the groove. This structure allows the second support arm 3 to be adjusted at multiple angles around the spherical connector to meet the needs of different detection angles.

[0022] The second support arm 3 extends horizontally, and a third support column 4 is provided at the end away from the first support column 2. The third support column 4 extends vertically and is fixedly installed at the bottom of the stage 5. The stage 5 consists of a fixed plate 9 and a movable plate 10. The fixed plate 9 is fixed to the bottom of the third support column 4 by bolts, and its upper surface is provided with a T-shaped groove extending horizontally. The bottom of the movable plate 10 is provided with a T-shaped protrusion that matches the T-shaped groove. The T-shaped protrusion is embedded in the T-shaped groove, allowing the movable plate 10 to slide horizontally on the fixed plate 9. A scale is provided on the side of the fixed plate 9, and a pointer is provided on the side of the movable plate 10. The pointer is aligned with the scale and is used to indicate the distance the movable plate 10 has moved relative to the fixed plate 9. The upper surface of the movable plate 10 is provided with several grooves, and magnetic sheets 12 are embedded in the grooves. The magnetic sheets 12 are used to attract metal jewelry, improving the stability during testing. In addition, the upper surface of the movable plate 10 is provided with a limiting hole that runs vertically through it. A limiting rod 11 is inserted into the limiting hole. An elastic pad is provided on the top of the limiting rod 11. After the limiting rod 11 is inserted into the limiting hole, the elastic pad fits against the upper surface of the movable plate 10 to further fix the position of the jewelry.

[0023] The magnifying glass module 6 is mounted on the second support arm 3 via a sliding connector, which includes a groove 13, a slider 14, and an L-shaped bracket. The groove 13 is located at one end of the second support arm 3 near the first support column 2 and extends along the axial direction. The slider 14 is slidably mounted within the groove 13. The slider 14 is fixed to the L-shaped bracket via a threaded connection. The vertical section of the L-shaped bracket is fixed to the slider 14 with bolts, and the horizontal section has a guide hole extending vertically. The top of the outer shell of the magnifying glass module 6 has a mounting hole aligned with the guide hole. Positioning pins are inserted into the guide hole and the mounting hole, allowing the magnifying glass module 6 to be fixed on the L-shaped bracket. The sliding connector also includes an elastic limiting component 15, which is located in a spring groove at the bottom of the horizontal section of the L-shaped bracket. A compression spring is installed in the spring groove, and a steel ball is located at the top of the compression spring. The steel ball extends out of the spring groove and contacts the inner wall of the groove 13. The inner wall of the slide groove 13 is provided with several limiting grooves arranged along the axial direction. The steel ball is embedded in the limiting groove under the action of the compression spring, so as to achieve precise positioning of the sliding connector.

[0024] The magnifying glass module 6 has a lens track inside its housing, extending vertically. The lens assembly 7 includes a main lens and an auxiliary lens, which are mounted in the lens track via sliding blocks. A rack structure is provided on the side of the sliding block. The adjustment mechanism 8 includes two gears and a knob. The two gears mesh with the racks corresponding to the main and auxiliary lenses, respectively. The knob is connected to the two gears via a coaxially mounted drive shaft. When the knob rotates, the drive shaft drives the two gears to rotate, and the gears drive the sliding block to move along the lens track via the rack, thereby adjusting the relative position of the main and auxiliary lenses. A friction plate is provided at the bottom of the knob, embedded in an annular groove on the inner wall of the housing. When the knob rotates, the friction plate provides damping force to prevent accidental rotation due to external forces. The outer surface of the knob has anti-slip textures evenly distributed around its circumference for easy gripping and rotation.

[0025] The magnifying glass module 6 also includes a light source module 16, which consists of LED beads and a light guide plate. The LED beads are embedded in the inner wall of the housing, and the light guide plate is positioned between the main lens and the auxiliary lens. The surface of the light guide plate has several microprism structures that evenly distribute the light emitted by the LED beads to the detection area. The inner wall of the housing has a reflective coating to reduce light scattering and increase light intensity, thereby optimizing the detection effect. A transparent protective cover 17 is located at the bottom of the housing and is fixed to the housing by a snap-fit ​​mechanism. The surface of the transparent protective cover 17 has an anti-reflective coating to reduce interference from external light. The top of the housing has ventilation holes with dust filters installed inside to prevent dust from entering the housing.

[0026] The specific operation process of this utility model is as follows: First, adjust the height of the first support column 2 according to the testing requirements. Rotate the first support column 2 so that its external thread section moves up and down in the internal thread hole of the base 1 until a suitable height is reached, then stop rotating. Next, adjust the angle of the second support arm 3. Loosen the locking bolt to allow the ball joint to rotate freely in the ball groove. After adjusting to the required angle, tighten the locking bolt to fix the second support arm 3. Then, place the jewelry to be tested on the movable plate 10 of the stage 5. If the jewelry is made of metal, it can be fixed by magnetic sheet 12; if the jewelry is made of non-metallic material, it is fixed by limiting rod 11. The movable plate 10 can slide horizontally on the fixed plate 9. By observing the position of the pointer on the scale, the horizontal position of the jewelry can be precisely controlled.

[0027] When adjusting the position of the magnifying glass module 6, the sliding connector is pushed to move along the slide groove 13. The steel ball in the elastic limiting component 15, under the action of the compression spring, embeds into the limiting groove on the inner wall of the slide groove 13, ensuring the sliding connector is fixed in the desired position. After the position of the magnifying glass module 6 is determined, the relative positions of the main lens and auxiliary lens of the lens assembly 7 are adjusted by rotating the knob, so that the lens focus is aligned with the detection area of ​​the jewelry. The light emitted by the LED beads of the light source module 16 is uniformly irradiated onto the detection area after being processed by the light guide plate and reflective coating. The anti-reflective coating of the transparent protective cover 17 reduces external light interference, ensuring stable lighting conditions in the detection environment.

[0028] Through the above structure and operating steps, this utility model can achieve efficient and accurate detection of jewelry, and has multiple functions such as height adjustment, angle adjustment, horizontal fine adjustment and lens position adjustment to meet the detection needs in different scenarios.

[0029] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the implementation principle of this utility model is provided in conjunction with specific application scenarios.

[0030] In actual operation, the height of the entire device needs to be adjusted according to the testing environment and the size of the jewelry. By rotating the first support column 2, its external threaded section moves up and down in the internal threaded hole of the base 1, thereby changing the overall height. This adjustment method is based on the principle of thread transmission. By rotating the first support column 2, it causes displacement along the thread axis, ensuring that the device can adapt to testing requirements at different heights. Once the appropriate height is reached, rotation is stopped, and the friction between the first support column 2 and the base 1 keeps its position stable.

[0031] Subsequently, the angle of the second support arm 3 is adjusted to meet the requirements of the detection viewing angle. After loosening the locking bolt, the ball joint rotates freely in the ball groove, allowing the second support arm 3 to flexibly adjust its angle within a certain range. This structural design utilizes the multi-degree-of-freedom characteristics of the ball joint, combined with the clamping force applied by the locking bolt, to achieve fixation at any angle. After adjustment, the locking bolt is tightened to ensure the stable position of the second support arm 3.

[0032] When the jewelry to be tested is placed on the stage 5, the movable plate 10 can be finely adjusted horizontally according to the specific position of the jewelry. The movable plate 10 is fitted into the T-slot of the fixed plate 9 through a T-shaped protrusion, forming a sliding pair structure, which allows the movable plate 10 to move smoothly in the horizontal direction. The scale on the side of the fixed plate 9 cooperates with the pointer on the side of the movable plate 10. By observing the position of the pointer on the scale, the displacement of the movable plate 10 can be precisely controlled, thereby achieving precise positioning of the jewelry. For metal jewelry, the magnetic field attraction force generated by the magnetic sheet 12 can effectively fix the jewelry; while for non-metallic jewelry, the limiting rod 11 is inserted into the limiting hole, and the pressure provided by the elastic pad is used to fix it.

[0033] The position adjustment of the magnifying glass module 6 relies on the design of the sliding connector. When the sliding connector is pushed along the slide groove 13, the slider 14 slides within the slide groove 13, while the steel ball in the elastic limiting component 15 is embedded in the limiting groove on the inner wall of the slide groove 13 under the action of the compression spring. This design utilizes the elastic restoring force of the spring and the cooperation between the steel ball and the limiting groove to achieve precise positioning of the sliding connector. Once the position of the magnifying glass module 6 is determined, the mounting hole on the top of its housing is aligned with the guide hole of the horizontal section of the L-shaped bracket using a positioning pin and then fixed to ensure the stability of the magnifying glass module 6 during the inspection process.

[0034] The focus adjustment of lens assembly 7 is achieved through adjustment mechanism 8. When the knob is rotated, the drive shaft drives two gears to rotate synchronously. The gears mesh with the rack on the side of the sliding block, driving the sliding block to move along the lens track. Since the main lens and auxiliary lens are mounted on different sliding blocks, their relative positions can be changed by adjusting the knob. This gear and rack transmission method has high precision and can meet the inspection requirements of jewelry of different sizes. At the same time, the friction plate at the bottom of the knob is embedded in the annular groove on the inner wall of the housing, providing damping force to prevent the knob from rotating accidentally due to external vibration, thereby ensuring the stability of lens assembly 7.

[0035] The design of the light source module 16 further optimizes the detection effect. The light emitted by the LED beads is processed by the microprism structure on the surface of the light guide plate and then evenly distributed to the detection area. The microprism structure of the light guide plate disperses the light into multiple directions through refraction and scattering, reducing uneven illumination. Furthermore, the reflective coating on the inner wall of the housing reflects scattered light, reducing light loss and increasing light intensity, thus providing stable light source conditions for jewelry detection. The anti-reflective coating on the surface of the transparent protective cover 17 further enhances the optical stability of the detection environment by reducing interference from external light.

[0036] By combining the above steps and principles, this invention enables efficient and accurate testing of jewelry. From height adjustment to angle adjustment, and then to horizontal fine-tuning and lens focus adjustment, each step ensures convenience and accuracy of the testing process through the synergistic effect of mechanical structure and optical design. This multi-level adjustment mechanism not only meets diverse testing needs but also significantly improves testing efficiency and operational comfort, providing reliable technical support for the field of jewelry testing.

Claims

1. A jewelry testing stand with a built-in magnifying glass assembly, comprising a base (1), a first support column (2), a second support arm (3), a third support column (4), a stage (5), and a magnifying glass module (6), characterized in that, A vertically extending first support column (2) is provided on the base (1). A horizontally extending second support arm (3) is installed on the top of the first support column (2) through a rotating connector. A vertically extending third support column (4) is provided at the end of the second support arm (3) away from the first support column (2). A stage (5) is fixedly installed at the bottom of the third support column (4). The magnifying glass module (6) includes a housing, a lens assembly (7) and an adjustment mechanism (8). The housing is installed on the second support arm (3) through a sliding connector. The lens assembly (7) is embedded inside the housing. The adjustment mechanism (8) is used to adjust the position of the lens assembly (7).

2. The jewelry inspection bracket with a built-in magnifying glass assembly according to claim 1, characterized in that, The first support column (2) is fixed to the base (1) by a threaded connection. The bottom of the first support column (2) is provided with an external thread section, and the center of the base (1) is provided with an internal thread hole. The external thread section and the internal thread hole cooperate to fix the first support column (2). The rotating connector includes a ball joint set on the top of the first support column (2) and a ball groove set at one end of the second support arm (3). The ball joint is embedded in the ball groove and fixed by a locking bolt.

3. A jewelry testing bracket with a built-in magnifying glass assembly according to claim 1, characterized in that, The second support arm (3) is provided with a sliding groove (13) extending along the axial direction at one end near the first support column (2). A slider (14) is slidably installed in the sliding groove (13). The slider (14) is fixed to the sliding connector by a threaded connection. The sliding connector includes an L-shaped bracket set on the slider (14). The vertical section of the L-shaped bracket is fixed to the slider (14) by bolts. The horizontal section of the L-shaped bracket is provided with a guide hole that runs through the vertical direction. The top of the outer shell is provided with a mounting hole aligned with the guide hole. A positioning pin is inserted in the guide hole and the mounting hole.

4. A jewelry testing bracket with a built-in magnifying glass assembly according to claim 1, characterized in that, The housing has a lens track extending vertically inside. The lens assembly (7) includes a main lens and an auxiliary lens. The main lens and the auxiliary lens are respectively installed in the lens track by sliding blocks. The sliding blocks are provided with a rack structure on their side. The adjustment mechanism (8) includes two gears and a knob. The two gears are respectively meshed with the racks corresponding to the main lens and the auxiliary lens. The knob is connected to the two gears through a coaxially mounted transmission shaft. When the knob is rotated, it drives the gears to rotate and drives the sliding block to move along the lens track.

5. A jewelry testing bracket with a built-in magnifying glass assembly according to claim 1, characterized in that, The platform (5) includes a fixed plate (9) and a movable plate (10). The fixed plate (9) is fixed to the bottom of the third support column (4) by bolts. The upper surface of the fixed plate (9) is provided with a T-shaped groove extending in the horizontal direction. The bottom of the movable plate (10) is provided with a T-shaped protrusion that matches the T-shaped groove. The movable plate (10) is fitted into the T-shaped groove through the T-shaped protrusion and can slide in the horizontal direction. The upper surface of the movable plate (10) is provided with a limiting hole that runs through in the vertical direction. A limiting rod (11) is inserted into the limiting hole. An elastic pad is provided on the top of the limiting rod (11). The elastic pad fits against the upper surface of the movable plate (10) after the limiting rod (11) is inserted into the limiting hole.

6. A jewelry testing bracket with a built-in magnifying glass assembly according to claim 5, characterized in that, The upper surface of the movable plate (10) is provided with several grooves arranged in the horizontal direction, and magnetic pieces (12) are embedded in the grooves; the side of the fixed plate (9) is provided with a scale extending in the horizontal direction, and the side of the movable plate (10) is provided with a pointer aligned with the scale.

7. A jewelry testing bracket with a built-in magnifying glass assembly according to claim 1, characterized in that, The lens assembly (7) also includes a light source module (16), which includes LED beads and a light guide plate. The LED beads are embedded in the inner wall of the housing, and the light guide plate is disposed between the main lens and the auxiliary lens. Several microprism structures are disposed on the surface of the light guide plate. The inner wall of the housing is provided with a reflective coating.

8. A jewelry testing bracket with a built-in magnifying glass assembly according to claim 1, characterized in that, A transparent protective cover (17) is provided at the bottom of the outer shell. The transparent protective cover (17) is fixed to the outer shell by a snap-fit ​​method. The surface of the transparent protective cover (17) is provided with an anti-reflective coating. A heat dissipation hole is provided at the top of the outer shell, and a dustproof net is installed in the heat dissipation hole.

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