A jewelry detection and magnification screen projection device

Abstract

The utility model discloses a jewelry detection amplification screen projection device concretely relates to jewelry detection equipment technical field, including show board, the upper and lower both sides of show board all are provided with the mounting frame, every group mounting frame inside is provided with the sliding slot, the inside of sliding slot is provided with the adjusting assembly, and one group mounting frame bottom is provided with the protective housing, the inside of protective housing is provided with the rotation subassembly, and the cooperation of adjusting assembly screw thread swizzle stick and mobile seat can adjust the hook interval, and the projection curtain cloth of adaptation different width does not need additional replacement fixed component, has improved the versatility of device, the linkage structure of handle, transmission wheel and rack plate can drive hook synchronous pull curtain cloth, makes it keep flat tight state, offsets the shaking influence that the outside air flow brought, guarantees projection picture clear and stable, provides accurate vision for jewelry detail detection.

Description

Technical Field

[0001] This utility model relates to the technical field of jewelry testing equipment, and in particular to a jewelry testing magnifying screen projection device. Background Technology

[0002] In the field of jewelry testing, magnifying projection devices are often needed to clearly observe the details such as surface texture and flaws of jewelry, but existing technologies have many shortcomings.

[0003] Traditional projection devices typically use screens with a fixed width, making it difficult to adapt to the projection needs of jewelry of different sizes for testing. Replacing the screen requires disassembly and reinstallation, which is cumbersome and inefficient. Furthermore, the lack of a stable fixing and tensioning structure makes the screen susceptible to shaking due to external airflow, resulting in a blurry projected image and affecting testing accuracy. In addition, most devices have complex projection angle adjustment methods, requiring multiple steps such as removing screws and using additional locking components to achieve angle adjustment. This makes it difficult to quickly adapt to the multi-directional observation needs of jewelry, and once the angle is fixed, it is prone to shifting, further reducing the convenience and stability of testing. All these problems restrict the efficiency and accuracy of jewelry testing. Utility Model Content

[0004] The main purpose of this invention is to provide a magnifying screen projection device for jewelry testing, which can effectively solve the above problems.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A jewelry testing magnifying screen projection device includes a display panel, with mounting brackets on both the upper and lower sides of the display panel. Each set of mounting brackets has a sliding groove on its inner side, and an adjustment component is provided inside the sliding groove. A protective shell is provided at the bottom of one set of mounting brackets, and a rotating component is provided inside the protective shell.

[0007] The adjustment assembly includes a threaded rotating rod rotatably connected to the inner side of the sliding groove. Each set of sliding grooves has two sets of movable seats slidably connected to the inner side, and the bottom of the movable seats is threadedly connected to the threaded rotating rod. A reset spring is fixedly connected to one side of the movable seat, and a hook is fixedly connected to the other end of the reset spring.

[0008] Preferably, the back of the display panel has a movable cavity, a transmission wheel is rotatably connected to the center of the movable cavity, and rack plates are slidably connected to both sides inside the movable cavity. One end of the rack plate is fixedly connected to one side of the mounting frame, and a throttle handle is fixedly connected to one end of the transmission wheel extending to the outside of the display panel.

[0009] Preferably, there are two sets of rack plates, and each set of rack plates is meshed with the drive wheel.

[0010] Preferably, the rotating assembly includes a mounting ring fixedly connected to the bottom of the inner side of the protective shell, a reset spring fixedly connected to the inner side of the mounting ring, a lower gear plate fixedly connected to one side of the reset spring, an upper gear plate fixedly connected to the top of the inner side of the display panel, and a connecting shaft fixedly connected to the center of the lower gear plate.

[0011] Preferably, the upper gear plate and the lower gear plate are meshed together, and the top of the connecting shaft is fixedly connected to the bottom of one of the mounting brackets.

[0012] Preferably, a tripod is fixedly connected to the bottom of the protective shell.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The adjustment mechanism allows for flexible adjustment of the hook spacing, easily adapting to projection screens of different widths without requiring additional replacement of fixing parts, significantly improving the device's versatility. The linkage structure of the throttle, drive wheel, and rack plate enables the hooks to pull the screen synchronously, keeping it flat and taut, effectively counteracting the shaking caused by external airflow, ensuring a clear and stable projected image, and providing a precise field of view for jewelry detail inspection.

[0015] 2. The rotating component adopts a "press-unlock - rotate-lock" design, which eliminates the need for complicated tools and allows a single person to quickly adjust the projection angle, adapting to the multi-directional inspection needs of jewelry, including the top, sides, and bottom. The meshing structure of the upper and lower gears provides precise positioning and prevents offset after the angle is fixed, ensuring a stable projection angle during inspection. All components of the device are tightly connected, and the operation steps are simple and easy to understand, improving the efficiency of jewelry inspection and lowering the operating threshold. Attached Figure Description

[0016] Figure 1 This is a front structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the adjustment component structure of this utility model;

[0019] Figure 4 This is a partial structural schematic diagram of the present invention;

[0020] Figure 5 This is a schematic diagram of the rotating component structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the rotating component of this utility model.

[0022] In the diagram: 1. Display board; 2. Mounting rack; 3. Sliding groove; 4. Adjustment assembly; 401. Threaded rotating rod; 402. Moving seat; 403. Return spring; 404. Hook; 405. Movable cavity; 406. Drive wheel; 407. Rack plate; 408. Throttle; 5. Protective shell; 6. Rotating assembly; 601. Mounting ring; 602. Upper gear plate; 603. Lower gear plate; 604. Return spring; 605. Connecting shaft; 7. Tripod. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1-2 As shown, a jewelry testing magnifying screen projection device includes a display board 1. The display board 1 is provided with a mounting bracket 2 on both the upper and lower sides. Each set of mounting brackets 2 has a sliding groove 3 on its inner side and an adjustment component 4 on its inner side. One set of mounting brackets 2 has a protective shell 5 at its bottom and a rotating component 6 on its inner side. A tripod 7 is fixedly connected to the bottom of the protective shell 5.

[0025] As can be seen from the above, the tripod 7 provides stable support for the device and ensures the overall stability of the placement; the mounting brackets 2 on the upper and lower sides of the display board 1 provide the installation base for the adjustment component 4 through the inner sliding groove 3, and the adjustment component can be used to adapt and fix the projection screen of different widths, reducing the shaking of the screen; the rotating component 6 in the protective shell 5 at the bottom of the mounting bracket 2 can flexibly adjust the projection angle of the display board 1 to adapt to the multi-faceted jewelry testing needs.

[0026] like Figures 1-2 As shown, the adjustment component 4 includes a threaded rod 401 rotatably connected to the inner side of the sliding groove 3. Two sets of movable seats 402 are slidably connected to the inner side of each set of sliding grooves 3, and the bottom of the movable seat 402 is threadedly connected to the threaded rod 401. A reset spring 403 is fixedly connected to one side of the movable seat 402, and a hook 404 is fixedly connected to the other end of the reset spring 403. An active cavity 405 is opened on the back of the display panel 1. A transmission wheel 406 is rotatably connected to the center of the active cavity 405. A rack plate 407 is slidably connected to both sides inside the active cavity 405, and one end of the rack plate 407 is fixedly connected to one side of the hanging frame 2. A handle 408 is fixedly connected to one end of the transmission wheel 406 extending to the outer side of the display panel 1. There are two sets of rack plates 407, and each set of rack plates 407 is meshed with the transmission wheel 406.

[0027] As described above, rotating the threaded rod 401 can drive the two sets of movable seats 402 in the sliding groove 3 to slide, adjusting the spacing of the hooks 404 connected to the reset spring 403 to adapt to the installation requirements of projection screens of different widths; rotating the handle 408 on the outside of the display panel 1 can drive the transmission wheel 406 in the center of the movable cavity 405 to rotate. Through the meshing connection between the transmission wheel 406 and the two sets of rack plates 407, the rack plates 407 are driven to move outward synchronously, thereby pulling the mounting bracket 2 to further pull the hooks 404 to keep the screen flat and taut, effectively reducing the shaking caused by external air flow. At the same time, no complicated tools are required, and a single person can quickly complete the spacing adjustment and screen flattening operation, improving the convenience of jewelry projection inspection and the stability of the image.

[0028] like Figures 1-2 As shown, the rotating assembly 6 includes a mounting ring 601 fixedly connected to the bottom of the inner side of the protective shell 5. A reset spring 604 is fixedly connected to the inner side of the mounting ring 601. A lower gear 603 is fixedly connected to one side of the reset spring 604. An upper gear 602 is fixedly connected to the top of the inner side of the display plate 1. A connecting shaft 605 is fixedly connected to the center of the lower gear 603. The upper gear 602 and the lower gear 603 are meshed together. The top of the connecting shaft 605 is fixedly connected to the bottom of one of the sets of mounting brackets 2.

[0029] As described above, when the display panel 1 is pressed down during operation, the lower gear 603 is driven by the connecting shaft 605 to compress the reset spring 604 fixed by the mounting ring 601 inside the protective shell 5, causing the originally engaged lower gear 603 to separate from the upper gear 602 inside the display panel 1. At this time, the display panel 1 can be freely rotated to adjust the projection angle to suit different observation needs. After releasing the press, the reset spring 604 rebounds and pushes the lower gear 603 to reset, re-engage and lock with the upper gear 602, ensuring that the angle is fixed and does not shift. The entire operation requires no additional tools, is simple, efficient and precise in positioning, and improves the observation flexibility and stability during jewelry testing.

[0030] The working principle of this utility model is as follows: the tripod 7 provides a stable foundation for the overall device; the mounting brackets 2 on the upper and lower sides of the display board 1 are equipped with adjustment components 4 through the inner sliding grooves 3; the bottom protective shell 5 of the mounting bracket 2 is provided with a rotating component 6; in the adjustment component 4, rotating the threaded rod 401 can drive the movable seat 402 in the sliding groove 3 to slide, flexibly adjusting the spacing of the hooks 404 connected to the reset spring 403 to adapt to the installation of projection screens of different widths; then rotating the outer handle 408 of the display board 1 drives the transmission wheel 406 in the movable cavity 405 to rotate, which drives the mounting bracket 2 to move outward through meshing with the two sets of rack plates 407, so that the mounting bracket 2 can move outward. Hook 404 pulls the screen to keep it flat and taut, reducing shaking caused by external airflow. In the rotating assembly 6, pressing down on the display panel 1 can drive the lower gear 603 to compress the reset spring 604 on the mounting ring 601 through the connecting shaft 605, causing the lower gear 603 to disengage from the upper gear 602. At this time, the display panel 1 can be freely rotated to adjust the projection angle. After releasing the press, the reset spring 604 rebounds and pushes the lower gear 603 to re-engage and lock with the upper gear 602. The entire device does not require complicated tools and can achieve screen adaptation, flat fixation and angle adjustment through simple operation, ensuring projection stability and observation convenience during jewelry inspection.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A jewelry inspection magnifying screen projection device, comprising a display panel (1), characterized in that: The display board (1) is provided with a mounting bracket (2) on both the upper and lower sides. Each set of mounting brackets (2) has a sliding groove (3) on the inner side. An adjustment component (4) is provided on the inner side of the sliding groove (3). A protective shell (5) is provided at the bottom of one set of mounting brackets (2). A rotating component (6) is provided on the inner side of the protective shell (5). The adjustment assembly (4) includes a threaded rod (401) rotatably connected to the inner side of the sliding groove (3). Two sets of movable seats (402) are slidably connected to the inner side of each set of sliding grooves (3), and the bottom of the movable seat (402) is threadedly connected to the threaded rod (401). A reset spring (403) is fixedly connected to one side of the movable seat (402), and a hook (404) is fixedly connected to the other end of the reset spring (403).

2. The jewelry inspection magnifying screen projection device according to claim 1, characterized in that: The back of the display panel (1) is provided with a movable cavity (405). A transmission wheel (406) is rotatably connected at the center of the movable cavity (405). A rack plate (407) is slidably connected to both sides inside the movable cavity (405). One end of the rack plate (407) is fixedly connected to one side of the mounting frame (2). A throttle (408) is fixedly connected to one end of the transmission wheel (406) extending to the outside of the display panel (1).

3. The jewelry inspection magnifying screen projection device according to claim 2, characterized in that: The number of rack plates (407) is two sets, and each set of rack plates (407) is meshed with the transmission wheel (406).

4. The jewelry inspection magnifying screen projection device according to claim 1, characterized in that: The rotating assembly (6) includes a mounting ring (601) fixedly connected to the bottom of the inner side of the protective shell (5), a reset spring (604) fixedly connected to the inner side of the mounting ring (601), a lower gear plate (603) fixedly connected to one side of the reset spring (604), an upper gear plate (602) fixedly connected to the top of the inner side of the display plate (1), and a connecting shaft (605) fixedly connected to the center of the lower gear plate (603).

5. The jewelry inspection magnifying screen projection device according to claim 4, characterized in that: The upper gear plate (602) and the lower gear plate (603) are meshed together, and the top of the connecting shaft (605) is fixedly connected to the bottom of one of the mounting brackets (2).

6. The jewelry inspection magnifying screen projection device according to claim 1, characterized in that: The bottom of the protective shell (5) is fixedly connected to a tripod (7).

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