Portable electroscope for electrical automation
By optimizing the telescopic design of the electroscope through the structure of external toothed plate, spur gear and internal toothed rack, combined with rubber strip layer and storage box, the problems of traditional electroscopes being laborious and easily damaged are solved, and the ease of operation and safety of the electroscope are improved.
Patent Information
- Application Number
- CN202423188252.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Traditional portable voltage detectors are difficult to extend and retract, are easily damaged, and the handle is prone to cracking when dry or exposed to sunlight, posing a safety hazard.
The device uses an external gear plate, spur gear, and internal rack structure to drive the telescopic tube and moving tube. It combines a rubber strip layer and a wear-resistant and crack-resistant layer to increase friction and is equipped with a storage box for temporary tool storage.
It achieves time-saving and labor-saving operation, improves voltage testing efficiency, reduces equipment damage, and enhances safety and portability.
Smart Images

Figure CN223742603U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electroscopes, and in particular to a portable electroscope for electrical automation. Background Technology
[0002] An electric detector is a tool used to detect the presence of voltage in electrical equipment or circuits. It is commonly used in the fields of power and electrical engineering. Its main function is to help workers confirm whether electrical equipment is energized in order to avoid electric shock accidents. A portable electric detector is a lightweight and easy-to-carry electrical testing tool, specifically designed for quickly detecting whether electrical equipment or circuits are energized. Its design takes into account the convenience of on-site work, so it is usually small in size, easy to operate, and can effectively prevent electrical accidents and ensure the safety of workers.
[0003] Traditional portable electroscopes are relatively difficult to retract if stretched too forcefully, and this can easily cause unnecessary damage to the electroscope. In addition, the handle of traditional portable electroscopes is prone to cracking in dry weather or after prolonged exposure to sunlight. Furthermore, the smooth handle can easily fall off during use, damaging the electroscope and posing certain safety hazards.
[0004] Therefore, those skilled in the art have provided a portable detector for electrical automation to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a portable voltage detector for electrical automation. By pressing down the fixed frame, the telescopic tube and the moving tube can be moved outward through the external toothed plate, spur gear and internal rack. When it is completely moved out, the fixed frame is released and it can be fixed by engaging with the fixed hole. When it needs to be retracted, the fixed frame can be pressed down to retract it. It saves time and effort, improves the efficiency of voltage detectors and saves voltage detectors' testing time.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A portable voltage detector for electrical automation includes a voltage detector body, a connecting tube provided on the rear outer wall of the voltage detector body, a telescopic mechanism provided on the rear outer wall of the connecting tube, the telescopic mechanism including a telescopic tube sleeved on the outer wall of the connecting tube, an external toothed plate fixedly connected to the rear outer wall of the telescopic tube, a movable tube sleeved on the rear end of the outer wall of the telescopic tube, a fixing plate fixedly connected to the upper and lower ends of the rear outer wall of the movable tube, and a spur gear provided on one side outer wall of the fixing plate;
[0008] A protective mechanism is provided at the rear end of the outer wall of the moving tube. The protective mechanism includes a handle body provided on the outer wall of the rear end of the moving tube. A rubber strip layer is fixedly connected to the outer wall of the handle body. An internal toothed rack is fixedly connected to both the upper and lower ends of the inner wall of the handle body.
[0009] With the above technical solution, pressing down the fixing frame will drive the telescopic tube and the moving tube to move outward through the outer toothed plate, spur gear, and inner rack. When it is completely moved out, the fixing frame can be released and locked in place by engaging with the fixing hole. When it needs to be retracted, pressing down the fixing frame will retract it. This saves time and effort, improves the efficiency of voltage testers, and saves voltage testers' testing time.
[0010] Furthermore, a cover is provided on the rear outer wall of the handle body, and two snap-fit brackets are fixedly connected to the front outer wall of the cover. A storage box is provided on the outer wall of the snap-fit brackets, and an engagement cavity is provided inside the storage box. A snap-fit groove is provided on the rear outer wall of the storage box.
[0011] The above technical solution, by setting a rubber strip layer and a wear-resistant and crack-resistant layer on the handle body, can greatly increase the friction, and the storage box at the rear of the handle body can be used to store some tools temporarily.
[0012] Furthermore, a wear-resistant and crack-resistant layer is fixedly connected to the outer wall of the rubber strip layer, and the wear-resistant and crack-resistant layer is a composite material of epoxy resin and rubber;
[0013] Through the above technical solution, the rubber strip layer is a composite material of epoxy resin and rubber, which has good corrosion resistance, wear resistance, and strong adhesion.
[0014] Furthermore, a fixed shell is fixedly connected to the front end of the outer wall of the movable tube, a limit frame is fixedly connected to the front end of the outer wall of the fixed shell, a fixed shaft is rotatably connected to the inner wall of the limit frame, a fixed frame is sleeved on the outer wall of the fixed shaft, and a spring is fixedly connected to the rear end of the lower surface of the fixed frame.
[0015] The above technical solution allows the telescopic component to be fixed by a limiting frame, a fixed shaft, and a spring.
[0016] Furthermore, the spur gear meshes with the external tooth groove, the spur gear meshes with the internal rack, and two fixing holes are provided on the upper surface of the telescopic tube;
[0017] Through the above technical solution, the telescopic tube can be moved outward by the meshing of the spur gear with the external tooth groove and the meshing of the spur gear with the internal rack.
[0018] Furthermore, a connecting column is fixedly connected to the outer wall of the rear end of the electroscope body, and an electroscope rod is fixedly connected to the outer wall of the front end of the electroscope body;
[0019] Using the above technical solution, voltage detection can be performed using a voltage tester.
[0020] Furthermore, the external tooth groove slides inside the meshing cavity;
[0021] The above technical solution allows the external toothed plate to be limited by sliding within the meshing cavity via the external tooth groove.
[0022] This utility model has the following beneficial effects:
[0023] 1. The present invention proposes a portable voltage detector for electrical automation. When the fixed frame is pressed, the telescopic tube and the moving tube can be moved outward by the external gear plate, spur gear and internal rack. When it is completely moved out, the fixed frame is released and the fixed frame is locked in place by engaging with the fixed hole. When it needs to be retracted, the fixed frame can be pressed to retract it. It saves time and effort, improves the efficiency of voltage detectors and saves voltage detectors' testing time.
[0024] 2. The portable electroscope for electrical automation proposed in this utility model has a rubber strip layer and a wear-resistant and crack-resistant layer on the handle body. The rubber strip layer can greatly increase the friction. The rubber strip layer is made of epoxy resin and rubber composite material, which has good corrosion resistance, wear resistance and strong adhesion. In addition, a storage box is provided at the rear end of the handle body to store some tools, which can serve as a temporary storage function. Attached Figure Description
[0025] Figure 1 This is an isometric drawing of a portable electroscope for electrical automation proposed in this utility model;
[0026] Figure 2 This is a side sectional view of a portable electroscope for electrical automation proposed in this utility model;
[0027] Figure 3 This is a schematic diagram of the structure of a portable electroscope for electrical automation proposed in this utility model;
[0028] Figure 4 This is a schematic diagram of the telescopic tube in a portable electroscope for electrical automation proposed in this utility model;
[0029] Figure 5 This is a schematic diagram of the handle body of a portable electroscope for electrical automation proposed in this utility model;
[0030] Figure 6 This is a side sectional view of the handle body of a portable electroscope for electrical automation proposed in this utility model;
[0031] Figure 7This is an isometric view of the storage box in a portable electroscope for electrical automation proposed in this utility model;
[0032] Figure 8 This is a schematic diagram of the cover structure of a portable electroscope for electrical automation proposed in this utility model.
[0033] Legend:
[0034] 1. Voltage detector body; 2. Connecting pipe;
[0035] 3. Telescopic mechanism; 301. Telescopic tube; 302. Fixing frame; 303. Fixing shaft; 304. Spring; 305. Fixing shell; 306. Fixing hole; 307. Internal rack; 308. Spur gear; 309. Fixing plate; 3010. External gear groove; 3011. External gear plate; 3012. Moving tube; 3013. Limiting frame;
[0036] 4. Protective mechanism; 401. Handle body; 402. Rubber strip layer; 403. Wear-resistant and crack-resistant layer; 404. Engaging cavity; 405. Storage box; 406. Lid; 407. Snap-fit bracket; 408. Snap-fit groove;
[0037] 5. Test rod; 6. Connecting post. Detailed Implementation
[0038] 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.
[0039] One embodiment of this utility model is provided:
[0040] Reference Figure 1 , Figure 2 and Figure 5 A portable electroscope for electrical automation includes an electroscope body 1, a connecting tube 2 provided on the outer wall of the rear end of the electroscope body 1, a telescopic mechanism 3 provided on the outer wall of the rear end of the connecting tube 2, the telescopic mechanism 3 includes a telescopic tube 301 sleeved on the outer wall of the connecting tube 2, an external toothed plate 3011 fixedly connected to the outer wall of the rear end of the telescopic tube 301, a movable tube 3012 sleeved on the rear end of the outer wall of the telescopic tube 301, a fixing plate 309 fixedly connected to the upper and lower ends of the outer wall of the rear end of the movable tube 3012, and a spur gear 308 provided on one side of the outer wall of the fixing plate 309.
[0041] A protective mechanism 4 is provided at the rear end of the outer wall of the moving tube 3012. The protective mechanism 4 includes a handle body 401 provided on the outer wall of the rear end of the moving tube 3012. A rubber strip layer 402 is fixedly connected to the outer wall of the handle body 401. An internal toothed rack 307 is fixedly connected to both the upper and lower ends of the inner wall of the handle body 401.
[0042] Pressing down the fixing bracket 302 causes the telescopic tube 301 and the moving tube 3012 to move outward via the outer toothed plate 3011, the spur gear 308, and the inner rack 307. When completely moved out, the fixing bracket 302 is released, and the fixing bracket 302 engages with the fixing hole 306 to secure it. When it needs to be retracted, pressing down the fixing bracket 302 will retract it. This saves time and effort, improves the efficiency of voltage testers, and saves voltage testers' testing time.
[0043] Reference Figure 4 , Figure 7 and Figure 8 The handle body 401 has a cover 406 on its rear outer wall. The front outer wall of the cover 406 is fixedly connected to two clip brackets 407. The outer wall of the clip brackets 407 is provided with a storage box 405. The storage box 405 has an engagement cavity 404 inside and a clip groove 408 on its rear outer wall. By setting a rubber strip layer 402 and a wear-resistant and crack-resistant layer 403 on the handle body 401, the rubber strip layer 402 can greatly increase the friction. The storage box 405 at the rear of the handle body 401 can be used to store some tools temporarily. The wear-resistant and crack-resistant layer 403 is fixedly connected to the outer wall of the rubber strip layer 402. The wear-resistant and crack-resistant layer 403 is made of epoxy resin and rubber composite material. The rubber strip layer 402 is made of epoxy resin and rubber composite material, which has good corrosion resistance, wear resistance and strong adhesion.
[0044] Reference Figure 2 , Figure 3 and Figure 6 A fixed housing 305 is fixedly connected to the front end of the outer wall of the movable tube 3012. A limit frame 3013 is fixedly connected to the front end of the outer wall of the fixed housing 305. A fixed shaft 303 is rotatably connected to the inner wall of the limit frame 3013. A fixed frame 302 is sleeved on the outer wall of the fixed shaft 303. A spring 304 is fixedly connected to the rear end of the lower surface of the fixed frame 302. The spur gear 308 of the telescopic component can be fixed to mesh with the outer tooth groove 3010 through the limit frame 3013, the fixed shaft 303, and the spring 304. The spur gear 308 meshes with the inner rack 307. Two fixing holes 306 are opened on the upper surface of the telescopic tube 301. The telescopic tube 301 can be moved outward by the meshing of the spur gear 308 with the outer tooth groove 3010 and the meshing of the spur gear 308 with the inner rack 307.
[0045] Reference Figure 1 , Figure 2 and Figure 6A connecting post 6 is fixedly connected to the outer wall of the rear end of the electroscope body 1, and an electroscope rod 5 is fixedly connected to the outer wall of the front end of the electroscope body 1. The electroscope rod 5 can be used for electrical testing. The outer tooth groove 3010 slides inside the meshing cavity 404. The sliding of the outer tooth groove 3010 inside the meshing cavity 404 can limit the outer tooth plate 3011.
[0046] Working principle: When using the device, first start the electroscope body 1, then press the fixing bracket 302 to disengage it from the fixing hole 306, and then pull out the telescopic tube 301. When pulling the telescopic tube 301, it meshes with the spur gear 308 through the external tooth groove 3010 on the external tooth plate 3011. The spur gear 308 is connected to the fixing plate 309, so when the spur gear 308 moves, it will drive the moving tube 3012 to move. The spur gear 308 also meshes with the internal rack 307, which can make the telescopic component move out more smoothly. Then release the fixing bracket 302, and the fixing bracket 302 will cooperate with the fixing hole 306 to fix the telescopic component. After use, press the fixing bracket 302 to retract the telescopic tube 301. When temporary tools are needed, turn the cover 406 and remove the cover 406 through the snap-fit bracket 407. After removing the cover, the temporary tools or small items can be placed in the storage box 405.
[0047] 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 portable electroscope for electrical automation, comprising an electroscope body (1), characterized in that: The rear end outer wall of the electroscope body (1) is provided with a connecting pipe (2), the rear end outer wall of the connecting pipe (2) is provided with a telescopic mechanism (3), the telescopic mechanism (3) comprises a telescopic pipe (301) sleeved on the outer wall of the connecting pipe (2), the rear end outer wall of the telescopic pipe (301) is fixedly connected with an outer gear plate (3011), the rear end of the outer wall of the telescopic pipe (301) is sleeved with a moving pipe (3012), the upper end and the lower end of the rear end outer wall of the moving pipe (3012) are fixedly connected with a fixed plate (309), and the outer wall of one side of the fixed plate (309) is provided with a straight gear (308). The rear end of the outer wall of the moving pipe (3012) is provided with a protection mechanism (4), the protection mechanism (4) comprises a handle body (401) provided on the rear end outer wall of the moving pipe (3012), the outer wall of the handle body (401) is fixedly connected with a rubber strip layer (402), and the inner wall of the upper end and the lower end of the handle body (401) is fixedly connected with an inner gear rack (307).
2. The portable electroscope for electrical automation according to claim 1, characterized in that: The rear end outer wall of the handle body (401) is provided with a cover (406), the front end outer wall of the cover (406) is fixedly connected with two clamping frames (407), the outer wall of the clamping frame (407) is provided with a storage box (405), the inside of the storage box (405) is provided with an engagement cavity (404), and the rear end outer wall of the storage box (405) is provided with a clamping groove (408).
3. The portable electroscope for electrical automation according to claim 1, characterized in that: The outer wall of the rubber strip layer (402) is fixedly connected with a wear-resistant and anti-cracking layer (403), and the wear-resistant and anti-cracking layer (403) is made of epoxy resin and rubber composite material.
4. The portable electroscope for electrical automation according to claim 1, characterized in that: The front end of the outer wall of the moving pipe (3012) is fixedly connected with a fixed shell (305), the front end of the outer wall of the fixed shell (305) is fixedly connected with a limiting frame (3013), the inner wall of the limiting frame (3013) is rotatably connected with a fixed shaft (303), the outer wall of the fixed shaft (303) is sleeved with a fixed frame (302), and the rear end of the lower surface of the fixed frame (302) is fixedly connected with a spring (304).
5. The portable electroscope for electrical automation according to claim 1, characterized in that: The straight gear (308) is engaged with the outer gear groove (3010), the straight gear (308) is engaged with the inner gear rack (307), and the upper surface of the telescopic pipe (301) is provided with two fixed holes (306).
6. The portable electroscope for electrical automation according to claim 1, characterized in that: The rear end outer wall of the electroscope body (1) is fixedly connected with a connecting column (6), and the front end outer wall of the electroscope body (1) is fixedly connected with an electroscope rod (5).
7. The portable electroscope for electrical automation according to claim 5, characterized in that: The outer gear groove (3010) slides in the inside of the engagement cavity (404).