Multi-channel leakage current tester

Abstract

The utility model discloses a multi-channel leakage current tester, which relates to the technical field of multi-channel leakage current testers and comprises a multi-channel leakage current tester body and a plurality of groups of wiring ports arranged at the front end of the multi-channel leakage current tester body, and movable closing assemblies capable of closing the wiring ports are arranged on the outer sides of the plurality of groups of wiring ports. According to the device, the movable sealing block is pushed through the spring, so that the movable sealing block can be located outside the wiring port for sealing, the situation that dust and other impurities enter the wiring port is reduced, meanwhile, closing assemblies are arranged outside different sets of wiring ports and are independent of one another, and when a wire is inserted into one set of wiring ports, the closing assemblies are closed. The movable sealing block can be used for clamping the wire connector without influencing the closing state of the wiring port when other groups are not in use, and after the wire is inserted, the movable sealing block can be matched with the silica gel gasket to clamp the wire connector, so that the condition that the wire connector is separated from the wiring port is reduced, and the connection stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-channel leakage current testers, and in particular to a multi-channel leakage current tester. Background Technique

[0002] A multi-channel leakage current tester is a test instrument that can simultaneously monitor the leakage current in multiple channels. Through built-in current sensors and safety protection devices, it can accurately and quickly detect the leakage situation in the circuit, and has functions such as data processing, display, and alarm.

[0003] When using a multi-channel leakage current tester, wires need to be connected between the interfaces of the multi-channel leakage current tester and the circuit to be repaired to ensure its connection stability. If the conduction is poor, it will cause errors or even inability to work during data processing, display, etc. The situation of poor conduction is mostly due to the fact that the interface part is usually exposed, dust and other impurities will adhere to the interface, and when the wire is connected and inserted during use, it will cause substances from the outside to enter the inside of the interface more easily. At the same time, after the wire is connected, there is a lack of components to strengthen the connection between the wire and the interface.

[0004] Therefore, we propose a multi-channel leakage current tester to solve the technical problems existing above. Content of the Utility Model

[0005] In view of this, aiming at the deficiencies of the present utility model, its main purpose is to provide a multi-channel leakage current tester, which is used to solve the above problems.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: It includes a multi-channel leakage current tester main body and several groups of wiring ports arranged at the front end of the multi-channel leakage current tester main body. A movable closing component that can close the wiring ports is arranged outside several groups of the wiring ports. The movable closing component includes a support rod, a cross bar, a rectangular groove ring, a rectangular connecting column, a movable closing block and a spring. The support rod is fixed on the side wall of the multi-channel leakage current tester main body. There are multiple groups of cross bars arranged in a mirror image and movably sleeved on the support rod. Several groups of rectangular groove rings corresponding to several groups of the wiring ports are arranged on the side wall of the cross bar. A rectangular connecting column is movably connected inside the rectangular groove ring. The end of the rectangular connecting column pointing to the wiring port is connected with a movable closing block. A spring is connected between the movable closing block and the rectangular groove ring, and the spring is slidably sleeved on the rectangular connecting column.

[0007] As a preferred scheme, a tension spring is connected between multiple groups of the cross bars, and the tension spring is slidably sleeved on the support rod.

[0008] As a preferred scheme, an arc-shaped closing convex plate is arranged at the end of the movable closing block close to the wiring port.

[0009] As a preferred solution, a silica gel washer is provided at one end of the movable closing block away from the rectangular connecting column.

[0010] As a preferred solution, it further includes a driving assembly for moving multiple groups of cross bars. The driving assembly includes a fixed bar, a rotating bar, and a jacking bar. The fixed bar is fixed at one end of the cross bar, and the fixed bar is located on the side wall of the cross bar close to the wiring port. The rotating bar is rotatably connected to the side wall of the multi-channel leakage current tester main body, and the axis of the rotating bar coincides with the midline of the fixed bar. The jacking bar is fixed on the rotating bar.

[0011] As a preferred solution, one end of the fixed bar slidably abuts against the outer wall of the jacking bar. Arc-shaped convex heads are provided at both ends of the jacking bar, and a clamping groove adapted to the arc-shaped convex heads is provided at one end of the fixed bar close to the jacking bar.

[0012] Compared with the prior art, the present utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions, the main ones are:

[0013] This device uses a spring to push the movable closing block, so that the movable closing block can be located outside the wiring port for sealing, reducing the situation that dust and other impurities enter the inside of the wiring port. At the same time, closing assemblies are provided outside different groups of wiring ports and are independent of each other. That is, when inserting a wire into one group of wiring ports, it will not affect the closing state of the wiring ports in other groups that are not in use. And after the wire is inserted, the movable closing block can cooperate with the silica gel washer to clamp the wire joint, reducing the situation that the wire joint falls off from the wiring port and improving the connection stability.

[0014] To more clearly elaborate the structural features and functions of the present utility model, the present utility model will be described in detail below with reference to the attached drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a vertical structural schematic diagram of an embodiment of the present utility model;

[0016] Figure 2 is a rear structural schematic diagram of an embodiment of the present utility model;

[0017] Figure 3 is a bottom structural schematic diagram of an embodiment of the present utility model;

[0018] Figure 4 is a cross-sectional structural schematic diagram of an embodiment of the present utility model;

[0019] Figure 5 is of the present utility model Figure 2 -A partial enlarged schematic diagram;

[0020] Figure 6 is the Figure 4 -B partial enlarged schematic view of the present utility model.

[0021] Explanation of reference numerals in the drawings: 1. Main body of multi-channel leakage current tester; 2. Wiring port; 3. Movable closing block; 4. Rectangular groove ring; 5. Rectangular connecting column; 6. Spring; 7. Cross bar; 8. Support rod; 9. Tensile spring; 10. Fixed rod; 11. Rotating rod; 12. Jacking rod; 13. Silicone gasket. Specific embodiments

[0022] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0024] Please refer to Figures 1 to 6 , the embodiment of the present utility model provides a multi-channel leakage current tester, including the main body 1 of the multi-channel leakage current tester and a plurality of groups of wiring ports 2 provided at the front end of the main body 1 of the multi-channel leakage current tester. A movable closing assembly capable of closing the wiring ports 2 is provided outside the plurality of groups of wiring ports 2. By providing a movable closing assembly outside the wiring ports 2, the wiring ports 2 can be closed, so that when not in use, the wiring ports 2 can be closed to reduce the situation that foreign objects enter the interior of the wiring ports 2;

[0025] Please refer to Figures 1 to 6The movable closing component comprises a support rod 8, a cross bar 7, a rectangular groove ring 4, a rectangular connecting column 5, a movable closing block 3 and a spring 6. The support rod 8 is fixed to the side wall of the multi-channel leakage current tester body 1. The cross bar 7 is provided with multiple groups of mirror-image distribution and movably sleeved on the support rod 8. The cross bar 7 is provided with notches adapted to the support rod 8, so that the cross bar 7 can slide along the support rod 8. The cross bar 7 can be specifically provided with two groups, which are respectively located at the two ends of the support rod 8. The side wall of the cross bar 7 is provided with several groups of rectangular groove rings 4 corresponding to several groups of wiring ports 2. The inner side of the rectangular groove ring 4 is movably connected with a rectangular connecting column 5. The end of the rectangular connecting column 5 pointing to the wiring port 2 is connected with a movable closing block 3. The movable closing block 3 is semicircular, and the wiring port 2 can be closed by two groups of movable closing blocks 3. A spring 6 is connected between the movable closing block 3 and the rectangular groove ring 4, and the spring 6 is slidably mounted on the rectangular connecting column 5. The spring 6 is used to push the movable closing block 3 to move close to the wiring port 2, thereby improving the sealing effect of the movable closing block 3. A tension spring 9 is connected between multiple groups of cross bars 7, and the tension spring 9 is slidably mounted on the support rod 8. The tension spring 9 can pull the cross bar 7 to slide close to each other on the support rod 8, thereby driving the rectangular groove ring 4 to move. When the rectangular groove ring 4 moves, the movable closing block 3 and the rectangular connecting column 5 will be driven to move through the spring 6, thereby achieving sealing.

[0026] See also Figure 6 An arc-shaped closing convex plate is provided at one end of the movable closing block 3 close to the wiring port 2. The arc-shaped closing convex plate is arranged on the periphery of the movable closing block 3. The arc-shaped closing convex plate can be clamped on the outer periphery of the wiring port 2. By limiting the maximum movement of the movable closing block 3 toward the wiring port 2, the sealing effect of the movable closing block 3 on the wiring port 2 can be further improved.

[0027] See also Figure 6 The end of the movable closing block 3 away from the rectangular connecting column 5 is provided with a silicone gasket 13, and the silicone gasket 13 is attached to the end of the movable closing block 3 away from the rectangular connecting column 5. When the movable closing blocks 3 move closer to each other, the silicone gasket 13 attached to one end of the movable closing block 3 will come into contact first, further improving the sealing effect. It should be noted that if a wire connector is plugged into the wiring port 2, the silicone gasket 13 can increase the resistance encountered when the wire connector is pulled out, thereby reducing the possibility of the wire connector connected to the wiring port 2 falling off during misoperation. In this case, since the rectangular connecting column 5 is slidingly connected to the rectangular groove ring 4, when a wire connector is plugged into the wiring port 2, the presence of the wire connector will block the spring 6 from pushing the movable closing block 3. At this time, the elastic force stored in the spring 6 will be transformed into an extrusion force of the movable closing block 3 on the wire connector when the position of the rectangular groove ring 4 is fixed, thereby making it less likely for the wire connector to fall off due to misoperation.

[0028] Please refer to Figures 1 to 6 It further includes a driving component for moving multiple groups of crossbars 7. The driving component includes a fixed rod 10, a rotating rod 11 and a jacking rod 12. The fixed rod 10 is fixed at one end of the crossbar 7, and the fixed rod 10 is located on the side wall of the crossbar 7 close to the wiring port 2. The rotating rod 11 is rotatably connected to the side wall of the multi-channel leakage current tester main body 1, and the axis of the rotating rod 11 coincides with the midline of the fixed rod 10. The jacking rod 12 is fixed on the rotating rod 11. One end of the fixed rod 10 slides and abuts against the outer wall of the jacking rod 12. Arc-shaped convex heads are provided at both ends of the jacking rod 12, and a clamping groove adapted to the arc-shaped convex heads is provided at one end of the fixed rod 10 close to the jacking rod 12. Due to the pulling force of the tension spring 9, the crossbars 7 will move closer to each other, thereby causing the fixed rod 10 to move. At this time, by rotating the rotating rod 11, the jacking rod 12 can be driven to rotate. When the jacking rod 12 rotates, it will jack up the fixed rod 10. It should be noted that through the cooperation of the arc-shaped convex head and the clamping groove, when the jacking rod 12 and the fixed rod 10 are in a vertical state, the rotation of the jacking rod 12 can be fixed at this time. At the same time, this is the maximum distance that the crossbar 7 can move away from the wiring port 2;

[0029] When the crossbar 7 is at the farthest position from the wiring port 2, the pushing force of the spring 6 on the movable closing block 3 is the smallest at this time, and the movable closing block 3 can be easily moved so that the wire connector can be inserted into the wiring port 2 to complete the connection of the wire;

[0030] After the connection is completed, by continuing to rotate the jacking rod 12, the arc-shaped convex head of the jacking rod 12 is disengaged from the clamping groove of the fixed rod 10. With the pulling force of the tension spring 9, the crossbars 7 can be moved closer to each other, driving the rectangular groove ring 4 to move, maintaining the squeezing force of the spring 6 on the movable closing block 3, and maintaining the seal.

[0031] In summary, through the pushing force of the spring 6 on the movable closing block 3, the movable closing block 3 can be located outside the wiring port 2 for sealing, reducing the situation that dust and other impurities enter the inside of the wiring port 2. At the same time, closing components are provided outside each group of wiring ports 2 and are independent of each other. That is, when inserting a wire into one group of wiring ports 2, it will not affect the closing state of other groups of wiring ports 2 that are not in use. And after the wire is inserted, the movable closing block 3 can cooperate with the silica gel gasket 13 to clamp the wire connector, reducing the situation that the wire connector falls off from the wiring port 2 and improving the connection stability.

[0032] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multi-channel leakage current tester, comprising a multi-channel leakage current tester body (1) and a plurality of wiring ports (2) arranged at the front end of the multi-channel leakage current tester body (1), characterized in that: A movable closing component capable of closing the wiring ports (2) is arranged on the outer side of the plurality of groups of wiring ports (2), the movable closing component comprising a support rod (8), a cross rod (7), a rectangular groove ring (4), a rectangular connecting column (5), a movable closing block (3) and a spring (6); the support rod (8) is fixed on the side wall of the multi-channel leakage current tester body (1); the cross rod (7) is provided with a plurality of groups of mirror-image-distributed and movably sleeved on the support rod (8); the side wall of the cross rod (7) is provided with a plurality of groups of rectangular groove rings (4) corresponding to the plurality of groups of wiring ports (2); a rectangular connecting column (5) is movably connected to the inner side of the rectangular groove ring (4); the movable closing block (3) is connected to the end of the rectangular connecting column (5) pointing to the wiring port (2); a spring (6) is connected between the movable closing block (3) and the rectangular groove ring (4), and the spring (6) is slidably sleeved on the rectangular connecting column (5).

2. A multi-channel leakage current tester according to claim 1, characterized in that: Tension springs (9) are connected between the plurality of groups of cross bars (7), and the tension springs (9) are slidably sleeved on the support bars (8).

3. A multi-channel leakage current tester according to claim 1, characterized in that: An arc-shaped closing convex plate is provided at one end of the movable closing block (3) close to the wiring port (2).

4. A multi-channel leakage current tester according to claim 1, characterized in that: A silicone gasket (13) is provided at one end of the movable closing block (3) which is away from the rectangular connecting column (5).

5. A multi-channel leakage current tester according to claim 1, characterized in that: The invention also comprises a driving assembly for moving the plurality of groups of cross bars (7), the driving assembly comprising a fixed rod (10), a rotating rod (11) and a lifting rod (12), the fixed rod (10) being fixed to one end of the cross bar (7), and the fixed rod (10) being located on a side wall of the cross bar (7) close to the wiring port (2), the rotating rod (11) being rotatably connected to the side wall of the multi-channel leakage current tester body (1), and the axis of the rotating rod (11) being coincident with the center line of the fixed rod (10), and the lifting rod (12) being fixed to the rotating rod (11).

6. A multi-channel leakage current tester according to claim 5, characterized in that: One end of the fixing rod (10) slides against the outer wall of the lifting rod (12), both ends of the lifting rod (12) are provided with arc-shaped protrusions, and one end of the fixing rod (10) close to the lifting rod (12) is provided with a clamping groove adapted to the arc-shaped protrusion.

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