A wire tester
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN HEFENG ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-04-02
- Publication Date
- 2026-07-07
AI Technical Summary
Existing wire testers lack protective devices, making them susceptible to damage from the external environment, which affects their performance and shortens their lifespan.
A wire tester with a protective device was designed, including a sliding cover, a limiting block, and a cooling fan. The instrument can be opened and closed by sliding the limiting block, providing protection and facilitating operation.
It effectively protects the wire tester from damage such as dust, moisture and impact, extends its service life and improves testing efficiency.
Smart Images

Figure CN224471702U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing instrument technology, and in particular to a wire tester. Background Technology
[0002] A tester is a device or instrument used to test, measure, and verify various physical quantities, electrical signals, performance parameters, etc. Among them, a wire tester is an instrument used to test the performance of connectors with multiple strands or multiple joints. It can detect the continuity, short circuit, crossing, instantaneous continuity and disconnection of the wire, as well as safety parameters such as withstand voltage insulation between wires and between wires and shielding layers.
[0003] Because existing wire testers lack protective devices, they are easily damaged by the external environment during use, such as drops, collisions, dust, and moisture. This not only affects the performance of the tester but also shortens its lifespan. Utility Model Content
[0004] The technical problem to be solved by this utility model is that the existing wire testers lack protection devices. Therefore, we propose a wire tester.
[0005] To achieve the above objectives, this application adopts the following technical solution: a wire tester, including a protective device, the main body of the wire tester is installed inside the protective device, a sliding cover is slidably connected to one end of the protective device, a handle is installed at the top of the protective device, two square grooves are opened at one end of the sliding cover, a limit block is slidably connected inside the square groove, two limit grooves are opened on both sides inside one end of the protective device, the surface of the limit block is slidably connected to the inside of the limit groove, and a plurality of heat dissipation grooves are opened at the end of the protective device away from the sliding cover.
[0006] Preferably, sliding grooves are provided on both sides of one end of the protective device, and sliding blocks are fixedly connected to both sides of the sliding cover plate, with the surface of the sliding block slidably connected to the inside of the sliding groove.
[0007] Preferably, the bottom end of the sliding block is provided with a circular groove, and a first spring is fixedly connected to the bottom end of the circular groove, and the bottom end of the first spring is fixedly connected to the bottom end of the sliding groove.
[0008] Preferably, the top and bottom of the square groove are provided with straight grooves, and the top and bottom of the limiting block are fixedly connected with straight blocks, and the surface of the straight blocks is slidably connected to the inside of the straight grooves.
[0009] Preferably, a second spring is fixedly connected to one side of the limiting block, and the other end of the second spring is fixedly connected to one side of the inside of the square groove.
[0010] Preferably, a heat sink is fixedly connected to the end of the protective device away from the sliding cover, and a connecting rod is fixedly connected to the end of the heat sink away from the sliding cover. Two cooling fans are rotatably connected to the surface of the connecting rod.
[0011] Preferably, an anti-collision pad is installed at the bottom end of the sliding cover.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] In this invention, by pulling the two limiting blocks at one end of the sliding cover, the limiting blocks are disengaged from the limiting groove, thus releasing the limiting position of the sliding cover. Then, by pulling the sliding cover upwards, the interior of the protective device is opened. When the sliding cover is moved to a designated position, the limiting blocks are moved back into the upper limiting groove, allowing the sliding cover to regain its limiting position. At this point, the wire tester body can be operated. After using the wire tester body, the limiting blocks are moved again, removing them from the limiting groove, thus restoring the limiting position between the sliding cover and the protective device. Release the switch, pull down the sliding cover to reset it, allowing the limit block to return to the limit groove at the lower end, thus restoring the sliding cover and the protective device to their original positions. At this point, the protective device re-establishes its protection for the wire tester body. This design effectively protects the wire tester body when not in use, preventing damage from the external environment such as dust, moisture, and impacts, thereby extending the tester's lifespan. It also allows users to quickly open the tester when needed and easily reset it after testing, improving testing efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of the wire tester of this utility model;
[0015] Figure 2 This is a schematic diagram of the protective device structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the limiting groove structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the square groove structure of this utility model;
[0018] Figure 5 This is a schematic diagram of the first spring structure of this utility model;
[0019] Figure 6 This is a schematic diagram of the cooling fan structure of this utility model.
[0020] Legend: 1. Protective device; 2. Main body of wire tester; 3. Sliding cover; 4. Handle; 5. Square groove; 6. Limiting block; 7. Limiting groove; 8. Heat dissipation groove; 9. Sliding groove; 10. Sliding block; 11. Circular groove; 12. First spring; 13. Straight groove; 14. Straight block; 15. Second spring; 16. Heat dissipation plate; 17. Connecting rod; 18. Cooling fan; 19. Anti-collision pad. Detailed Implementation
[0021] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.
[0022] Reference Figure 1 - Figure 4 As shown, this utility model provides a technical solution: a wire tester, including a protective device 1, with a wire tester body 2 installed inside the protective device 1. A sliding cover 3 is slidably connected to one end of the protective device 1, and a handle 4 is installed at the top of the protective device 1. Two square grooves 5 are opened at one end of the sliding cover 3, and limit blocks 6 are slidably connected inside the square grooves 5. Two limit grooves 7 are opened on both sides inside one end of the protective device 1, and the surface of the limit block 6 is slidably connected to the inside of the limit groove 7. Several heat dissipation grooves 8 are opened at the end of the protective device 1 away from the sliding cover 3. By pulling the two limit blocks 6 at one end of the sliding cover 3, the limit blocks 6 are disengaged from the inside of the limit grooves 7, and the limit of the sliding cover 3 is released. Then, the sliding cover 3 is pulled upward to open the inside of the protective device 1. When the sliding cover 3 is moved to a designated position, the limit blocks 6 are moved to the upper end. The sliding cover 3 is repositioned in the limiting groove 7, allowing operation of the wire tester body 2. After use, the limiting block 6 is moved out of the limiting groove 7, releasing the limiting between the sliding cover 3 and the protection device 1. Pulling down the sliding cover 3 resets it, returning the limiting block 6 to the lower limiting groove 7, and repositioning the sliding cover 3 and the protection device 1. The protection device 1 then re-establishes protection for the wire tester body 2. This design effectively protects the wire tester body 2 from external environmental damage such as dust, moisture, and impacts when not in use, extending the tester's lifespan. It also allows users to quickly open the tester when needed and easily reset it after testing, improving testing efficiency.
[0023] Reference Figure 2 , Figure 3 and Figure 5As shown in this embodiment: sliding grooves 9 are provided on both sides of one end of the protective device 1, and sliding blocks 10 are fixedly connected to both sides of the sliding cover plate 3. The surface of the sliding block 10 is slidably connected to the inside of the sliding groove 9. By allowing the sliding block 10 to slide inside the sliding groove 9, the movement position of the sliding cover plate 3 can be restricted, preventing the sliding cover plate 3 from shifting during movement, and making the movement of the sliding cover plate 3 more stable.
[0024] Reference Figure 5 As shown in this embodiment: a circular groove 11 is provided at the bottom end of the sliding block 10, and a first spring 12 is fixedly connected to the bottom end of the circular groove 11. The bottom end of the first spring 12 is fixedly connected to the bottom end of the sliding groove 9. By setting the first spring 12, the limiting block 6 can be moved out of the limiting groove 7 after the use of the wire tester body 2 is completed. After the limiting of the sliding cover plate 3 is released, the elasticity of the first spring 12 will automatically pull the sliding block 10 to drive the sliding cover plate 3 to reset, reducing the user's operation steps and making it more convenient for the user.
[0025] Reference Figure 4 As shown in this embodiment: straight grooves 13 are provided at the top and bottom of the square groove 5. Straight blocks 14 are fixedly connected to the top and bottom of the limiting block 6. The surface of the straight block 14 is slidably connected to the inside of the straight groove 13. By making the straight block 14 slide inside the straight groove 13, the movement of the limiting block 6 can be linearly guided, so that the limiting block 6 moves along a predetermined route, and the movement is more stable.
[0026] Reference Figure 4 As shown in this embodiment: a second spring 15 is fixedly connected to one side of the limiting block 6, and the other end of the second spring 15 is fixedly connected to one side of the inside of the square groove 5. By setting the second spring 15, the movement of the limiting block 6 can be restricted. The elasticity of the second spring 15 abuts against the limiting block 6, preventing the limiting block 6 from detaching from the inside of the limiting groove 7 due to the shaking and collision of the equipment.
[0027] Reference Figure 6 As shown in this embodiment: a heat sink 16 is fixedly connected to the end of the protective device 1 away from the sliding cover 3, and a connecting rod 17 is fixedly connected to the end of the heat sink 16 away from the sliding cover 3. Two cooling fans 18 are rotatably connected to the surface of the connecting rod 17. By setting the cooling fans 18, the heat generated by the tester during operation can be effectively reduced, ensuring that the tester operates stably for a long time.
[0028] Reference Figure 4 As shown in this embodiment: a shock absorber 19 is installed at the bottom of the sliding cover 3. By setting the rubber shock absorber 19, the sliding cover 3 can play a buffering role when falling, reduce the noise caused by the impact, and protect the bottom of the sliding cover 3.
[0029] Working principle: By pulling the two limiting blocks 6 at one end of the sliding cover 3, the limiting blocks 6 are disengaged from the inside of the limiting groove 7, and the limiting of the sliding cover 3 is released. Then, the sliding cover 3 is pulled upward, opening the inside of the protection device 1. When the sliding cover 3 is moved to the designated position, the limiting blocks 6 are moved so that they enter the limiting groove 7 at the upper end, and the sliding cover 3 is limited again. At this time, the wire tester body 2 can be operated. After the wire tester body 2 is used, the limiting blocks 6 are moved again, removing them from the inside of the limiting groove 7, so that the sliding cover 3 is re-limited by the protection device. When the limit switch between the two devices is released, pull down the sliding cover 3 to reset it, causing the limit block 6 to return to the lower limit groove 7. This re-limits the sliding cover 3 and the protection device 1, restoring the protection of the wire tester body 2 by the protection device 1. This design effectively protects the wire tester body 2 from damage caused by external environmental factors such as dust, moisture, and impacts when not in use, thus extending the lifespan of the tester. It also allows users to quickly open the tester when testing is needed and easily reset it after testing, improving testing efficiency. By allowing the sliding block 10 to slide inside the sliding groove 9, the movement of the sliding cover 3 can be restricted, preventing the sliding cover 3 from shifting during movement and making the movement of the sliding cover 3 more stable. By setting the first spring 12, after the wire tester body 2 is used, the limiting block 6 can be moved out of the limiting groove 7. After the limiting of the sliding cover 3 is released, the elasticity of the first spring 12 will automatically pull the sliding block 10 to drive the sliding cover 3 to reset, reducing user operation steps and providing convenience. By allowing the straight block 14 to slide inside the straight groove 13, the movement of the limiting block 6 can be restricted. The movement has linear guidance, allowing the limit block 6 to move along a predetermined path, making the movement more stable. By setting a second spring 15, the movement of the limit block 6 can be restricted. The elasticity of the second spring 15 abuts against the limit block 6, preventing the limit block 6 from dislodging from the inside of the limit groove 7 due to equipment shaking and collision. By setting a cooling fan 18, the heat generated by the tester during operation can be effectively reduced, ensuring the tester's stable operation for a long time. By setting a rubber anti-collision pad 19, the sliding cover 3 can act as a buffer when falling, reducing noise caused by impact and protecting the bottom of the sliding cover 3.
[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A wire tester, comprising a protection device (1), characterized in that: The protective device (1) has a wire tester body (2) installed inside. A sliding cover plate (3) is slidably connected to one end of the protective device (1). A handle (4) is installed at the top of the protective device (1). Two square grooves (5) are opened at one end of the sliding cover plate (3). A limit block (6) is slidably connected inside the square groove (5). Two limit grooves (7) are opened on both sides inside one end of the protective device (1). The surface of the limit block (6) is slidably connected to the inside of the limit groove (7). Several heat dissipation grooves (8) are opened at the end of the protective device (1) away from the sliding cover plate (3).
2. The wire tester according to claim 1, characterized in that: The protective device (1) has sliding grooves (9) on both sides of one end, and sliding blocks (10) are fixedly connected to both sides of the sliding cover plate (3). The surface of the sliding block (10) is slidably connected to the inside of the sliding groove (9).
3. The wire tester according to claim 2, characterized in that: The bottom end of the sliding block (10) is provided with a circular groove (11), and the bottom end of the circular groove (11) is fixedly connected to a first spring (12), and the bottom end of the first spring (12) is fixedly connected to the bottom end of the sliding groove (9).
4. The wire tester according to claim 1, characterized in that: The square groove (5) has straight grooves (13) at both the top and bottom. The limit block (6) has a straight block (14) fixedly connected to both the top and bottom. The surface of the straight block (14) is slidably connected to the inside of the straight groove (13).
5. A wire tester according to claim 1, characterized in that: A second spring (15) is fixedly connected to one side of the limiting block (6), and the other end of the second spring (15) is fixedly connected to one side of the square groove (5).
6. A wire tester according to claim 1, characterized in that: The protective device (1) has a heat sink (16) fixedly connected to one end away from the sliding cover (3), and a connecting rod (17) fixedly connected to one end away from the sliding cover (3). Two cooling fans (18) are rotatably connected to the surface of the connecting rod (17).
7. A wire tester according to claim 1, characterized in that: The bottom end of the sliding cover (3) is equipped with an anti-collision pad (19).