Foldable, stowable photodiode detection device
By designing a foldable photodiode detection device, the problems of inconvenience in carrying the device and susceptibility to damage were solved, enabling the device to be easily unfolded and folded, and protecting the display screen and control buttons.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA JILIANG UNIV
- Filing Date
- 2025-07-03
- Publication Date
- 2026-07-21
AI Technical Summary
Existing photodiode detection equipment occupies a large space during transport and use, is cumbersome to access, and is easily damaged.
A foldable photodiode detection device was designed. By using a hinged display box and control box, combined with a locking assembly and a protective strap, the device can be easily unfolded and folded, protecting the display screen and control buttons.
It enables convenient portability and stable use of the device, protects the display screen and control buttons, and avoids damage to the device during folding and carrying.
Smart Images

Figure CN224536123U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of diode testing technology, specifically a foldable and retractable photodiode testing device. Background Technology
[0002] During the production and use of photodiodes, they usually need to be tested to determine whether they can be used normally. During the testing process, equipment such as multimeters are used to test them.
[0003] Since multimeters and other equipment are usually carried and used in a case, the case takes up space and is cumbersome to access each time a test is performed. Some equipment manufacturers have abandoned the case to reduce the cumbersome operation. However, the testing equipment is not effectively protected in this case, and long-term use can easily cause damage to the display screen and control buttons. Therefore, this utility model provides a foldable and retractable photodiode testing device to solve the above-mentioned problems. Utility Model Content
[0004] The purpose of this invention is to provide a foldable and retractable photodiode detection device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A foldable and retractable photodiode testing device includes a display box and a control box. The top ends of the display box and the control box are hinged together. A display screen is mounted on the display box. A control slot is provided on the top of the control box. A control box is movably mounted inside the control box corresponding to the control slot. A control button for adjustment is mounted on the control box. A socket for connecting a detection line is also mounted on the control box. A protective strip is installed between the display box and the control box. A locking assembly is movably mounted on the control box at the end away from the display box.
[0006] As a further embodiment of this utility model, the locking assembly includes a rotating component, an unfolding locking component, and a folding locking component. The rotating component is movably mounted on the end of the control terminal box away from the display terminal box. The unfolding locking component is mounted on the rotating component at the end corresponding to the inner side of the control terminal box, and one end of the unfolding locking component is snapped onto the control box. The folding locking component is mounted on the end of the rotating component away from the unfolding locking component, and the folding locking component can be snapped onto the end of the display terminal box away from the control terminal box.
[0007] As a further embodiment of this utility model, the rotating component includes a rotating block, a rotating handle, a rotating groove, and a shaft disc. The rotating groove is formed on the side wall of the control terminal box away from the display terminal box, and the rotating groove penetrates the side wall of the control terminal box and communicates with the interior of the control terminal box. The shaft disc is inserted into the rotating groove and can rotate within the rotating groove. The rotating block is fixedly installed on the end of the shaft disc away from the inside of the control terminal box. The rotating handle is fixedly installed on the end of the rotating block away from the shaft disc, and the other end of the rotating handle is connected to the folding lock. The end of the shaft disc away from the rotating handle is connected to the unfolding lock.
[0008] As a further embodiment of this utility model, the rotating component also includes a reset torsion spring, which is movably installed in the rotating groove, thereby enabling the shaft disk to be movably installed in the rotating groove.
[0009] As a further embodiment of this utility model, the unfolding locking fastener includes a slot, a limiting groove, an auxiliary block, and a limiting rod. The slot is opened on the control box on the side corresponding to the shaft disk and consists of two sets of rectangular grooves. The limiting groove is opened on the inner side of the control box corresponding to the slot position and consists of two sets of symmetrically arranged arc grooves. The slot penetrates the side wall of the control box at the corresponding position and communicates with the limiting groove. The auxiliary block is fixedly installed on the side of the shaft disk near the control box, and the position of the auxiliary block corresponds to the center position of the slot and the limiting groove. The limiting rod is fixedly installed on the top and bottom of the side wall of the auxiliary block away from the shaft disk.
[0010] As a further embodiment of this utility model, the folding lock includes a locking block and a locking groove. The locking groove is a U-shaped groove, which is arc-shaped and formed on the side wall of the control box with the rotating block as the axis. The locking groove is also formed on the display box. After the display box and the control box are folded and closed, the locking grooves on the display box and the control box are on the same arc, and the outer end of the locking groove penetrates the side wall of the display box and the control box. The locking block is a U-shaped block, and the shape and size of the locking block are adapted to the shape and size of the locking groove. The outer end of the locking block is fixedly installed on the rotating handle.
[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. When using this utility model, the folding lock can be adjusted by rotating the handle. At this time, the display box and the control box can be unfolded. When unfolded, the protective strap will push the control box to the corresponding position of the control slot. At this time, the testing operation can be performed. After the test is completed, by folding the display box and the control box, the display box will pull the control box to move by the protective strap, causing the control box and the control slot to be misaligned. At the same time, the display screen on the display box will be snapped into the control slot. Thus, while achieving convenient carrying of the testing equipment, it can also effectively protect the display screen and control buttons of the testing equipment.
[0012] 2. When using this utility model, the rotating component can adjust the unfolding lock and the folding lock, so that the equipment can be effectively locked when unfolded and folded. This effectively ensures the stable use of the equipment during testing operations and also allows it to be carried stably after folding. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of a foldable and retractable photodiode detection device.
[0014] Figure 2 This is a partial cross-sectional view of the control box in a foldable and retractable photodiode detection device.
[0015] Figure 3 This is a partial disassembly diagram of the unfolding locking mechanism in a foldable photodiode testing device.
[0016] Figure 4 This is a partial structural diagram of the display terminal box and control terminal box in a foldable photodiode detection device after folding.
[0017] In the diagram: 1. Display end box; 2. Control end box; 3. Display screen; 4. Control slot; 5. Control box; 6. Control button; 7. Socket; 8. Rotating block; 9. Locking block; 10. Rotating handle; 11. Locking slot; 12. Rotating groove; 13. Shaft disc; 14. Return torsion spring; 15. Protective belt; 16. Slot; 17. Limiting slot; 18. Auxiliary block; 19. Limiting rod. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figures 1-4In this embodiment of the utility model, the foldable and retractable photodiode detection device includes a display box 1 and a control box 2. The top ends of the display box 1 and the control box 2 are hinged to each other. A display screen 3 is installed on the display box 1. The interior of the control box 2 is hollow. A control groove 4 is opened on the top of the control box 2. The control groove 4 passes through the control box 2 and communicates with the interior of the control box 2. A control box 5 is movably installed inside the control box 2 corresponding to the position of the control groove 4. The control box 5 can move inside the control box 2. A control button 6 for adjustment is installed on the control box 5. A socket 7 for connecting the detection line is also installed on the control box 5. A protective strip 15 is installed between the display box 1 and the control box 5. The protective strip 15 can be bent and deformed. The interior of the protective strip 15 is hollow. The protective strip 15 can protect the transmission line connecting the display box 1 and the control box 5. When the display box 1 is rotated and adjusted on the control box 2, the control box 5 can be moved accordingly inside the control box 2 through the protective strip 15.
[0020] A locking assembly is movably installed on the control terminal box 2 at the end furthest from the display terminal box 1. The locking assembly can lock the detection equipment when it is unfolded and folded. The locking assembly includes a rotating part, an unfolding locking part, and a folding locking part. The rotating part is movably installed at the end of the control terminal box 2 furthest from the display terminal box 1. The unfolding locking part is installed on the rotating part at the inner end of the control terminal box 2, and one end of the unfolding locking part is snapped onto the control box 5. The unfolding locking part can snap and limit the control box 5 when the display terminal box 1 and the control terminal box 2 are in the unfolded state. Thus, under the fixed length limitation of the protective belt 15, the display terminal box 1 cannot be rotated and adjusted on the control terminal box 2, so that the detection operation can be carried out stably. The folding locking part is installed on the end of the rotating part furthest from the unfolding locking part. The folding locking part can snap and be installed on the end of the display terminal box 1 furthest from the control terminal box 2. The folding locking part can lock the display terminal box 1 when the display terminal box 1 and the control terminal box 2 are in the folded state.
[0021] The rotating component includes a rotating block 8, a rotating handle 10, a rotating groove 12, a shaft disc 13, and a return torsion spring 14. The rotating groove 12 is formed on the side wall of the control terminal box 2 away from the display terminal box 1. The rotating groove 12 penetrates the side wall of the control terminal box 2 and communicates with the interior of the control terminal box 2. The shaft disc 13 is inserted into the rotating groove 12 and can rotate within the rotating groove 12. The rotating block 8 is fixedly installed on the inner side of the shaft disc 13 away from the control terminal box 2. The rotating handle 10 is fixedly installed on the end of the rotating block 8 away from the shaft disc 13, and the other end of the rotating handle 10 is connected to the folding lock. The end of the shaft disc 13 away from the rotating handle 10 is connected to the unfolding lock. The return torsion spring 14 is movably installed in the rotating groove 12, and the shaft disc 13 is movably installed in the rotating groove 12 through the return torsion spring 14.
[0022] The unfolding locking mechanism includes a slot 16, a limiting groove 17, an auxiliary block 18, and a limiting rod 19. The slot 16 is located on the control box 5 on the side corresponding to the shaft disc 13 and consists of two sets of rectangular grooves. The limiting groove 17 is located on the inner side of the control box 5 corresponding to the position of the slot 16 and consists of two sets of symmetrically arranged arc-shaped grooves. The slot 16 penetrates the corresponding side wall of the control box 5 and communicates with the limiting groove 17. The auxiliary block 18 is fixedly installed on the side of the shaft disc 13 near the control box 5, and the position of the auxiliary block 18 corresponds to the center position of the slot 16 and the limiting groove 17. The limiting rod 19 is fixedly installed on the top of the side wall of the auxiliary block 18 away from the shaft disc 13. At the bottom, the length of the limiting rod 19 is matched with the length of the slot 16. By rotating the handle 10, the handle 10 drives the shaft disk 13 to rotate, which in turn causes the auxiliary block 18 to drive the two sets of limiting rods 19 to a horizontal state. At this time, through the slot 16 on the control box 5, the auxiliary block 18 can drive the limiting rod 19 to insert into the limiting groove 17. When the handle 10 is released, the elastic reset of the return torsion spring 14 causes the auxiliary block 18 to drive the limiting rod 19 to rotate inside the limiting groove 17, thereby causing the limiting rod 19 and the slot 16 to be misaligned. At this time, under the restriction of the side wall of the control box 5, the control box 5 can be effectively limited.
[0023] The folding lock fastener includes a locking block 9 and a locking groove 11. The locking groove 11 is a "U"-shaped groove. The locking groove 11 is arc-shaped and opened on the side wall of the control box 2 with the rotating block 8 as the axis. The locking groove 11 is also opened on the display box 1. After the display box 1 and the control box 2 are folded and closed, the locking groove 11 on the display box 1 and the control box 2 are on the same arc. The outer end of the locking groove 11 penetrates the side wall of the display box 1 and the control box 2. The locking block 9 is a "U"-shaped block. The shape and size of the locking block 9 are adapted to the shape and size of the locking groove 11. The outer end of the locking block 9 is fixedly installed on the rotating handle 10. By rotating the rotating handle 10, the locking block 9 can be rotated and adjusted in the locking groove 11.
[0024] When the display box 1 and the control box 2 need to be folded, the handle 10 is rotated so that the handle 10 drives the unfolding locking member to release the lock through the shaft disc 13. At this time, the display box 1 and the control box 2 can be folded. After the display box 1 and the control box 2 are folded, the handle 10 is released. At this time, the locking block 9 on the handle 10 will move from the locking slot 11 on the control box 2 to the locking slot 11 on the display box 1, thereby completing the locking of the display box 1 and the control box 2 after folding.
[0025] A through groove is provided on the side wall of the rotating handle 10, extending through both ends of the rotating handle 10. When the display end box 1 and the control end box 2 are folded, the rotating handle 10 will be located at the center of the display end box 1 and the control end box 2. At this time, the detection equipment can be suspended through the through groove on the rotating handle 10. Since the rotating handle 10 is located at the center of the display end box 1 and the control end box 2, during the suspension and carrying process, the rotating handle 10 will not rotate on the control end box 2 due to the displacement of the force point, thus preventing the display end box 1 and the control end box 2 from accidentally separating. At the same time, when unfolding operations are performed, if no rotational force is applied to the rotating handle 10, the rotating handle 10 will be reset by the return torsion spring 14, thus forming a vertical control end. In the state of the top surface of box 2, when the device falls due to an accident, the rotating handle 10 forms a triangular state with the display box 1, the control box 2, and the rotating handle 10. When the top surfaces of the display box 1 and the control box 2 come into contact with the ground, it can effectively prevent the display screen 3 on the display box 1 and the control box 5 on the control box 2 from directly impacting the ground. This avoids damage to the display screen 3 on the display box 1 and the control button 6 on the control box 5 due to an accidental fall. At the same time, the return torsion spring 14 on the rotating handle 10 can form a buffer state when the fall occurs, further reducing the direct impact damage to the display screen 3 and the control button 6.
[0026] The working principle of this utility model is as follows: In use, by rotating the handle 10, the locking block 9 is moved from the slot 11 on the display box 1 to the slot 11 on the control box 2. At this time, the display box 1 and control box 2 are unfolded. During unfolding, the display box 1, through the protective strap 15, pushes the control box 5 towards the side closer to the shaft disc 13, exposing the control box 5 in the control slot 4. Simultaneously, the auxiliary block 18 drives the limiting rod 19 to insert into the limiting slot 17 through the slot 16. When the handle 10 is released, it rotates due to the elastic reset of the return torsion spring 14. The rotating handle 10 then drives the auxiliary block 18 and the limiting rod 19 to rotate in the limiting slot 17 through the shaft disc 13, thus completing the snap-fit connection between the control box 5 and the shaft disc 13. At this point, one end of the detection line is inserted into the socket 7, and the other end is connected to the diode pin. By operating the control button 6 on the control box 5, the device is started and corresponding detection is performed. Simultaneously, the detected... Data is displayed on the screen 3. After the operation is completed, the handle 10 is rotated again, causing the locking block 9 to rotate into the slot 11 on the control box 2. At this time, the rotation of the handle 10 causes the auxiliary block 18 to drive the limiting rod 19 to rotate in the limiting slot 17, thereby allowing the auxiliary block 18 and the limiting rod 19 to disengage from the control box 5 through the slot 16. When the display box 1 and the control box 2 are folded, the bending of the protective strap 15 will cause the control box 5 to move away from the shaft disc 13 in the control box 2, causing the control box 5 to be misaligned with the control slot 4. At the same time, the display screen 3 on the display box 1 will be locked into the control slot 4. After the display box 1 and the control box 2 are closed, the handle 10 is released, and the handle 10 is reset by the torque of the reset torsion spring 14, thereby causing the handle 10 to drive the locking block 9 to rotate into the slot 11 on the display box 1, thus completing the locking of the display box 1 and the control box 2 after folding and closing.
[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A foldable and retractable photodiode detection device, comprising a display terminal box (1) and a control terminal box (2), wherein the top ends of the display terminal box (1) and the control terminal box (2) are hinged to each other, characterized in that: The display box (1) is equipped with a display screen (3). The top of the control box (2) is provided with a control slot (4). The control box (2) is movably installed with a control box (5) inside the control box (2) corresponding to the control slot (4). The control box (5) is equipped with a control button (6) for adjustment. The control box (5) is also equipped with a socket (7) for connecting the detection line. A protective strip (15) is installed between the display box (1) and the control box (5). A locking assembly is movably installed on the control box (2) at the end away from the display box (1).
2. The foldable and retractable photodiode detection device according to claim 1, characterized in that: The locking assembly includes a rotating component, an unfolding locking component, and a folding locking component. The rotating component is movably installed on the control terminal box (2) at the end away from the display terminal box (1). The unfolding locking component is installed on the rotating component at the inner end of the control terminal box (2), and one end of the unfolding locking component is snapped onto the control box (5). The folding locking component is installed on the rotating component at the end away from the unfolding locking component, and the folding locking component can be snapped onto the display terminal box (1) at the end away from the control terminal box (2).
3. The foldable and retractable photodiode detection device according to claim 2, characterized in that: The rotating component includes a rotating block (8), a rotating handle (10), a rotating groove (12), and a shaft disc (13). The rotating groove (12) is opened on the side wall of the control end box (2) away from the display end box (1). The rotating groove (12) passes through the side wall of the control end box (2) and communicates with the inside of the control end box (2). The shaft disc (13) is inserted into the rotating groove (12) and can rotate within the rotating groove (12). The rotating block (8) is fixedly installed on the inner side of the shaft disc (13) away from the control end box (2). The rotating handle (10) is fixedly installed on the end of the rotating block (8) away from the shaft disc (13), and the other end of the rotating handle (10) is connected to the folding lock. The end of the shaft disc (13) away from the rotating handle (10) is connected to the unfolding lock.
4. The foldable and retractable photodiode detection device according to claim 3, characterized in that: The rotating component also includes a reset torsion spring (14), which is movably installed in the rotating groove (12). The reset torsion spring (14) enables the shaft disk (13) to be movably installed in the rotating groove (12).
5. The foldable and retractable photodiode detection device according to claim 3, characterized in that: The unfolding locking fastener includes a slot (16), a limiting groove (17), an auxiliary block (18), and a limiting rod (19). The slot (16) is opened on the control box (5) on the side corresponding to the shaft disk (13). The slot (16) is composed of two sets of rectangular grooves. The limiting groove (17) is opened on the inner side of the control box (5) corresponding to the position of the slot (16). The limiting groove (17) is composed of two sets of symmetrically arranged arc grooves. The slot (16) penetrates the side wall of the control box (5) at the corresponding position and communicates with the inside of the limiting groove (17). The auxiliary block (18) is fixedly installed on the side of the shaft disk (13) near the control box (5). The position of the auxiliary block (18) corresponds to the center position of the slot (16) and the limiting groove (17). The limiting rod (19) is fixedly installed on the top and bottom of the side wall of the auxiliary block (18) away from the shaft disk (13).
6. The foldable and retractable photodiode detection device according to claim 3, characterized in that: The folding lock includes a locking block (9) and a locking groove (11). The locking groove (11) is a "U"-shaped groove. The locking groove (11) is arc-shaped and opened on the side wall of the control box (2) with the rotating block (8) as the axis. The locking groove (11) is also opened on the display box (1). After the display box (1) and the control box (2) are folded and closed, the locking groove (11) on the display box (1) and the control box (2) are on the same arc. The outer end of the locking groove (11) penetrates the side wall of the display box (1) and the control box (2). The locking block (9) is a "U"-shaped block. The shape and size of the locking block (9) are adapted to the shape and size of the locking groove (11). The outer end of the locking block (9) is fixedly installed on the rotating handle (10).