Electric leakage switch tester

Abstract

The utility model discloses an electric leakage switch tester, and relates to the field of testers, the electric leakage switch tester comprises a switch tester main body, the upper top end of the switch tester main body is provided with an inner top groove, and the upper top end of the switch tester main body is uniformly provided with a plurality of plugging holes at the position of the inner top groove. A plurality of plug wire column main bodies are connected to the positions, corresponding to the plug holes, of the upper top end of the switch tester main body in a plug-in mode, secondary limiting of the plug wire column main bodies can be achieved through the clamping assemblies, the situation that in the using process, due to abrasion, the plug wire column main bodies fall off from the switch tester main body is avoided, and the service life of the plug wire column main bodies is prolonged. When the plug wire column main body is connected with the switch tester main body, the clamping assembly can move through rotation of the transmission structure and cooperation of the limiting structure so as to further drive the limiting structure to make contact with the plug wire column main body, and the purpose of clamping the plug wire column main body is achieved.

Description

Technical Field

[0001] This application relates to the field of testers, and particularly to a leakage switch tester. Background Art

[0002] A leakage switch tester, also known as a comprehensive tester for leakage protectors, is an electrical system measuring instrument mainly used to test key parameters such as the leakage operating current, non-leakage operating current, and leakage operating time of leakage protectors. The leakage switch tester is widely used in electrical safety inspections in various fields such as households, industries, and commerce, and is one of the important tools to ensure the safe operation of electrical equipment.

[0003] In the field of electrical detection and maintenance, existing leakage switch testers usually adopt a direct plug-and-play method to connect to the terminal posts. However, this connection method has particularly prominent problems in complex or long-term operating environments. Although the direct plug-and-play connection method is convenient, it lacks sufficient stability. In the case of frequent plugging and unplugging or equipment vibration, the connection between the terminal post body and the switch tester body is likely to become loose or even fall off, resulting in test interruption or data distortion, seriously affecting the accuracy and reliability of the test. Summary of the Utility Model

[0004] In order to solve the problem of insufficient stability, in the case of frequent plugging and unplugging or equipment vibration, the connection between the terminal post body and the switch tester body is likely to become loose or even fall off, resulting in test interruption or data distortion, this application provides a leakage switch tester.

[0005] A leakage switch tester provided by this application adopts the following technical solution:

[0006] A leakage switch tester includes a switch tester body. An inner top groove is opened at the upper top end of the switch tester body. A plurality of insertion holes are evenly opened at the position of the inner top groove at the upper top end of the switch tester body. A plurality of terminal post bodies are inserted and connected at the positions corresponding to the insertion holes at the upper top end of the switch tester body. A protective cover for protecting the end of the terminal post body is fixedly connected to the upper top end of the switch tester body. A clamping assembly for preventing the switch tester body and the terminal post body from falling off is arranged inside the protective cover at the upper top end of the switch tester body.

[0007] By adopting the above technical solution, by cleverly arranging the inner top groove and the insertion holes at the upper top end of its body and equipping with pluggable terminal post bodies, the flexibility and convenience of the test are greatly improved. At the same time, the addition of the protective cover not only protects the terminal post body from external interference and damage, but also enhances the safety of the equipment, preventing potential risks such as accidental touch or short circuit, and ensuring the safety and reliability of the test process.

[0008] Preferably, the clamping assembly includes a clamping structure that directly contacts the outer wall of the plug post body and a transmission structure that drives the clamping structure to work. The clamping structure includes a first moving plate and a second moving plate that are symmetrically and slidably connected to the upper end of the switch tester body. A plurality of first clamping plates are uniformly and fixedly connected to the outer side wall of the first moving plate, and a plurality of second clamping plates are uniformly and fixedly connected to the outer side wall of the second moving plate, and the first clamping plates and the second clamping plates are arranged oppositely.

[0009] By adopting the above technical solution, the clamping assembly realizes the stable clamping and convenient adjustment of the plug post body. The opposite arrangement of the first clamping plates and the second clamping plates further enhances the clamping effect and ensures the signal transmission quality during the test.

[0010] Preferably, the transmission structure includes a transmission gear rotatably connected to the upper end of the switch tester body. A transmission shaft is fixedly connected to the upper end of the transmission gear. Tooth grooves are formed on the opposite sides of the first moving plate and the second moving plate. The transmission gear meshes with the first moving plate and the second moving plate through the tooth grooves for transmission.

[0011] By adopting the above technical solution, the first moving plate and the second moving plate can automatically adjust the distance between them when the transmission shaft rotates through the meshing transmission of the tooth grooves and the transmission gear, so as to closely fit and firmly clamp the plug post bodies with different diameters, simplify the operation process, and ensure the stability and reliability of the clamping, avoiding test errors or safety hazards caused by the loosening of the plug post.

[0012] Preferably, meshing teeth are formed on the outer wall of the transmission shaft, and a rocker arm is fixedly connected to the outer wall of the transmission shaft below the meshing teeth.

[0013] By adopting the above technical solution, the meshing teeth formed on the transmission shaft and the fixedly connected rocker arm provide an intuitive and easy-to-operate control method for users. Users only need to gently rotate the rocker arm to drive the transmission shaft to rotate through the meshing teeth, and then drive the movement of the clamping structure.

[0014] Preferably, a plurality of first through holes for the plug post body to pass through are formed in the upper end of the protective cover. A second through hole is formed in the upper end of the protective cover on one side of the first through holes. An annular magnetic attraction plate is fixedly connected to the upper end of the protective cover at the position of the second through hole.

[0015] By adopting the above technical solution, the first through hole provides a smooth passage for the plug post body, ensuring the smooth connection of the test circuit. The design of the second through hole and the magnetic attraction plate thereon provides a convenient operation space for the adjustment of the transmission shaft, and fixes the resistance sleeve by magnetic attraction connection, preventing it from moving or falling off randomly in the non-operating state. The protective cover is made of transparent material, which can increase the transparency during use.

[0016] Preferably, a resistance sleeve is slidably connected to the upper end of the transmission shaft. A placement hole for placing the rocker arm is formed on the outer wall of the resistance sleeve. The resistance sleeve and the transmission shaft are clamped by meshing teeth.

[0017] By adopting the above technical solution, the resistance sleeve is clamped to the transmission shaft by meshing teeth, ensuring the stability and reliability during the transmission process and being able to limit the position of the transmission shaft.

[0018] Preferably, the resistance sleeve is located at the upper end of the protective cover and corresponds to the position of the second through hole. The magnetic attraction plate is magnetically connected to the resistance sleeve.

[0019] By adopting the above technical solution, the magnetic attraction plate is fixedly connected to the protective cover, providing a convenient adjustment method for the user. The user only needs to gently move the resistance sleeve to adjust the transmission shaft, without using additional tools or performing complex operations. The stability of the magnetic attraction connection also ensures that the resistance sleeve will not fall off or shift during the adjustment process, thus ensuring the smooth progress of the test, being able to achieve the purpose of controlling the transmission shaft and avoiding rotation.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] By providing a clamping assembly, during use, the clamping assembly can achieve secondary limitation of the plug post body, thereby avoiding the situation of detachment from the switch tester main body due to wear during use. After the plug post body is connected to the switch tester main body, the clamping assembly can move through the rotation of the transmission structure and the cooperation of the limiting structure, further driving the contact between the limiting structure and the plug post body and achieving the purpose of clamping the plug post body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is an overall structural schematic diagram of a leakage switch tester according to an embodiment of the present application;

[0023] Figure 2 is a schematic diagram mainly showing the top view structure of the switch tester main body and the protective cover according to an embodiment of the present application;

[0024] Figure 3This is a schematic diagram mainly showing the top view structure of the switch tester main body in the embodiment of the present application;

[0025] Figure 4 This is a schematic diagram mainly showing the separated structure of the clamping component and the plug-in terminal main body in the embodiment of the present application;

[0026] Figure 5 This is a schematic diagram mainly showing the disassembled structure of the clamping component in the embodiment of the present application.

[0027] Reference signs: 1, switch tester main body; 11, protective cover; 12, plug-in terminal main body; 13, first through hole; 14, second through hole; 141, magnetic attraction plate; 15, inner top groove; 16, plug-in hole; 2, drive gear; 21, drive shaft; 211, meshing teeth; 22, rocker arm; 23, resistance sleeve; 231, placement hole; 24, first moving plate; 241, first clamping plate; 25, second moving plate; 251, second clamping plate; 26, tooth groove. Detailed implementation manners

[0028] The following further Figure 1 - Figure 5 describes the present application in detail.

[0029] The embodiment of the present application discloses a leakage switch tester.

[0030] Embodiment

[0031] Referring to Figure 1 , Figure 2 and Figure 3 , a leakage switch tester includes a switch tester main body 1. An inner top groove 15 is opened at the upper top end of the switch tester main body 1. A plurality of plug-in holes 16 are evenly opened at the position of the inner top groove 15 at the upper top end of the switch tester main body 1. The uniform distribution design of the inner top groove 15 and the plug-in holes 16 provides a standardized installation position for the plug-in terminal main body 12, enabling the user to quickly and accurately complete the connection of the test circuit. A plurality of plug-in terminal main bodies 12 are plugged and connected at the positions of the plug-in holes 16 at the upper top end of the switch tester main body 1. A protective cover 11 for protecting the end of the plug-in terminal main body 12 is fixedly connected to the upper top end of the switch tester main body 1. A clamping component for preventing the separation of the switch tester main body 1 and the plug-in terminal main body 12 is arranged inside the protective cover 11 at the upper top end of the switch tester main body 1, effectively preventing the accidental detachment of the plug-in terminal main body 12 caused by vibration or external force during use, and greatly improving the overall connection stability and use safety of the tester. Even in a complex or harsh test environment, it can ensure the stable transmission of the test signal and avoid misjudgment or failure caused by unstable connection.

[0032] Referring to Figure 4 and Figure 5, the clamping assembly includes a clamping structure that directly contacts the outer wall of the terminal block body 12 and a transmission structure that drives the clamping structure. The clamping structure includes a first moving plate 24 and a second moving plate 25 that are symmetrically and slidably connected to the upper end of the switch tester body 1. A plurality of first clamping plates 241 are uniformly and fixedly connected to the outer side wall of the first moving plate 24, and a plurality of second clamping plates 251 are uniformly and fixedly connected to the outer side wall of the second moving plate 25. The first clamping plates 241 and the second clamping plates 251 are arranged oppositely. Through the symmetrical sliding connection of the first moving plate 24 and the second moving plate 25 and the opposite arrangement of the first clamping plates 241 and the second clamping plates 251 evenly distributed on their outer side walls, the outer wall of the terminal block body 12 is accurately clamped.

[0033] Refer to Figure 4 and Figure 5 , the transmission structure includes a transmission gear 2 rotatably connected to the upper end of the switch tester body 1. A transmission shaft 21 is fixedly connected to the upper end of the transmission gear 2. Tooth grooves 26 are formed on the opposite sides of the first moving plate 24 and the second moving plate 25. The transmission gear 2 meshes with the first moving plate 24 and the second moving plate 25 through the tooth grooves 26. Meshing teeth 211 are formed on the outer wall of the transmission shaft 21, and a rocker arm 22 is fixedly connected to the outer wall of the transmission shaft 21 below the meshing teeth 211. The rotation of the transmission gear 2 can accurately drive the first moving plate 24 and the second moving plate 25 to slide synchronously and smoothly, avoiding problems such as uneven clamping force or clamping failure caused by inaccurate transmission. The user can rotate the rocker arm 22 and use the lever principle to easily drive the transmission shaft 21 and the transmission gear 2 to rotate, thereby realizing the control of the clamping structure.

[0034] Refer to Figure 2 , Figure 4 and Figure 5, a plurality of first through holes 13 for the plug post body 12 to pass through are provided at the upper top end of the protective cover 11. It is designed for the plug post body 12 to ensure that the cable can pass through smoothly without obstruction. A second through hole 14 is provided on one side of the first through hole 13 at the upper top end of the protective cover 11. A ring-shaped magnetic attraction plate 141 is fixedly connected to the upper top end of the protective cover 11 at the position of the second through hole 14. A resistance sleeve 23 is slidably connected to the upper top end of the transmission shaft 21. A placement hole 231 for placing the rocker arm 22 is provided on the outer wall of the resistance sleeve 23. The resistance sleeve 23 not only provides stable support for the transmission shaft, but also provides a convenient placement position for the rocker arm 22 through the placement hole 231 on it, avoiding the random swing of the rocker arm when not in use. The resistance sleeve 23 is snap-connected to the transmission shaft 21 through the meshing teeth 211. The resistance sleeve 23 is located at the upper top end of the protective cover 11 and corresponds to the position of the second through hole 14. The magnetic attraction plate 141 is magnetically connected to the resistance sleeve 23. Just gently bring the resistance sleeve 23 close to the magnetic attraction plate 141 to achieve automatic adsorption and fixation, greatly improving the working efficiency during the test process.

[0035] The implementation principle of an earth leakage circuit breaker tester in an embodiment of the present application is as follows: Insert the plug post body 12 from the upper top end of the protective cover 11. The upper top end of the protective cover 11 is provided with a first through hole 13 corresponding to the plug post body 12, and the protective cover 11 is made of a transparent material to meet the line of sight requirements during the connection process with the switch tester main body 1. After the plug post body 12 is inserted into the inside of the insertion hole 16, in order to avoid the wear of the insertion hole 16 caused by long-term use, the user can use the clamping assembly to reinforce the connection between the plug post body 12 and the switch tester main body 1. At this time, move the resistance sleeve 23 out of the upper top end of the protective cover 11, so that the resistance sleeve 23 no longer connects with the magnetic attraction plate 141, and the removal of the resistance sleeve 23 also releases the control of the transmission shaft 21. The user can rotate the rocker arm 22 to drive the transmission shaft 21 and the transmission gear 2 to rotate. After the transmission gear 2 rotates, the first moving plate 24 and the second moving plate 25 on both sides of the transmission gear 2 will move in opposite directions, and the first clamping plate 241 and the second clamping plate 251 fixedly connected to the first moving plate 24 and the second moving plate 25 will approach each other due to the moving direction. The plug post body 12 is located in the middle of the interval between the first clamping plate 241 and the second clamping plate 251. Therefore, with the rotation of the transmission gear 2, the plug post body 12 can be clamped by the first clamping plate 241 and the second clamping plate 251. In this way, the situation of falling off from the switch tester main body 1 can be avoided.

[0036] The above are all preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A leakage switch tester, characterized in that: It includes a switch tester main body (1). An inner top groove (15) is opened at the upper top end of the switch tester main body (1). A number of insertion holes (16) are evenly opened at the position of the inner top groove (15) on the upper top end of the switch tester main body (1). A number of plug-in post bodies (12) are inserted and connected at the positions corresponding to the insertion holes (16) on the upper top end of the switch tester main body (1). A protective cover (11) for protecting the end of the plug-in post body (12) is fixedly connected to the upper top end of the switch tester main body (1). A clamping assembly for preventing the switch tester main body (1) from separating from the plug-in post body (12) is arranged inside the protective cover (11) at the upper top end of the switch tester main body (1).

2. The leakage switch tester according to claim 1, wherein: The clamping assembly includes a clamping structure that directly contacts the outer wall of the plug-in post body (12) and a transmission structure that drives the clamping structure to work. The clamping structure includes a first moving plate (24) and a second moving plate (25) that are symmetrically and slidably connected to the upper top end of the switch tester main body (1). A number of first clamping plates (241) are evenly fixedly connected to the outer side wall of the first moving plate (24). A number of second clamping plates (251) are evenly fixedly connected to the outer side wall of the second moving plate (25). And the first clamping plates (241) and the second clamping plates (251) are arranged oppositely.

3. The leakage switch tester according to claim 2, characterized in that: The transmission structure includes a transmission gear (2) that is rotatably connected to the upper top end of the switch tester main body (1). A transmission shaft (21) is fixedly connected to the upper top end of the transmission gear (2). Tooth grooves (26) are opened on the opposite sides of the first moving plate (24) and the second moving plate (25). The transmission gear (2) is in meshing transmission with the first moving plate (24) and the second moving plate (25) through the tooth grooves (26).

4. The leakage switch tester according to claim 3, characterized in that: Meshing teeth (211) are opened on the outer wall of the transmission shaft (21). An arm (22) is fixedly connected to the outer wall of the transmission shaft (21) below the meshing teeth (211).

5. The leakage switch tester according to claim 4, characterized in that: A number of first through holes (13) for the plug-in post body (12) to pass through are opened at the upper top end of the protective cover (11). A second through hole (14) is opened on one side of the first through hole (13) at the upper top end of the protective cover (11). An annular magnetic attraction plate (141) is fixedly connected to the upper top end of the protective cover (11) at the position of the second through hole (14).

6. The leakage switch tester according to claim 5, characterized in that: A resistance sleeve (23) is slidably connected to the upper top end of the transmission shaft (21). A placement hole (231) for placing the arm (22) is opened on the outer wall of the resistance sleeve (23). The resistance sleeve (23) is clamped to the transmission shaft (21) through the meshing teeth (211).

7. The leakage switch tester according to claim 6, characterized in that: The resistance sleeve (23) is located at the upper top end of the protective cover (11) and corresponds to the position of the second through hole (14). The magnetic attraction plate (141) is magnetically connected to the resistance sleeve (23).

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