Portable stray current monitor

Abstract

The utility model relates to the technical field of monitoring equipment, in particular to a portable stray current monitor, which is characterized in that the top of an equipment body is provided with a closing door, a binding post is arranged in a protection box, the left side and the right side of the top of the protection box are respectively provided with a protection groove, and the interior of each protection groove is slidably connected with a first tooth plate; a first sliding rod is fixedly connected into the protection groove, the surface of the first sliding rod is slidably connected with the first tooth plate, a second tooth plate is slidably connected into the protection groove, a second sliding rod is fixedly connected into the protection groove, the surface of the second sliding rod is slidably connected with the second tooth plate, and a gear is rotationally connected into the protection groove. The connection tightness of the device is improved, extremely high practicability is achieved, the situation that a current line is not stable during inspection is avoided, the detection efficiency of workers is improved, better operation of the workers is facilitated, meanwhile, time wasted by manually fixing the line is shortened for the workers, and the use efficiency of the whole device is further improved.

Description

Technical Field

[0001] This utility model relates to the field of monitoring equipment technology, specifically a portable stray current monitor. Background Technology

[0002] The current monitor is a portable rectifier instrument with high sensitivity and multi-range protection circuit. Its features include a wide measurement range with twenty ranges, capable of measuring AC and DC stray voltage and stray current respectively. It does not require a power supply, is safe and reliable, and is suitable for testing the current and voltage generated by steel rails, water pipes, cables, etc. in underground coal mines. It can prevent premature detonation of electric detonators and other combustion and explosion accidents caused by stray current discharge, and minimize the source of fire.

[0003] A search revealed a Chinese patent publication number: CN217766592U, which provides a portable stray current monitor. This patent integrates the handle and buckle of the stray current monitor by setting corresponding upper and lower curved rods on the front face of the device body and the cover plate, using the upper curved rod to set the insert block and self-locking block, and using the insert groove and slot in the lower curved rod for docking and installation. At the same time, the pressure block is used for adjustment, thereby integrating the handle and buckle of the stray current monitor, making it more convenient to carry and move.

[0004] Although the aforementioned patent can integrate the grip and buckle, the device still has the following problems: During the use of the device, since the connecting wire needs to be plugged into the terminal block, and since there is no fixed structure between the connecting wire and the terminal block, the connecting wire is prone to detaching from the terminal block when the operator accidentally touches it after the connection is completed, thereby affecting the detection of the device. In view of the above situation, technical innovation is carried out on the basis of the existing device. Utility Model Content

[0005] The purpose of this invention is to provide a portable stray current monitor to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a portable stray current monitor, wherein a closed door is provided on the top of the device body, a storage box is fixedly connected to the left side of the device body, a protective box is fixedly connected inside the device body, a terminal block is provided inside the protective box, protective grooves are provided on both the left and right sides of the top of the protective box, a first toothed plate is slidably connected inside the protective groove, a first sliding rod is fixedly connected inside the protective groove, the surface of the first sliding rod is slidably connected to the first toothed plate, a second toothed plate is slidably connected inside the protective groove, a second sliding rod is fixedly connected inside the protective groove, the surface of the second sliding rod is slidably connected to the second toothed plate, a gear is rotatably connected inside the protective groove, the first toothed plate and the second toothed plate are connected by meshing with the surface of the gear through teeth, the gear is located between the first toothed plate and the second toothed plate, a first cover plate is fixedly connected to the top of the first toothed plate, and a second cover plate is fixedly connected to the top of the second toothed plate.

[0007] Preferably, the storage box has a pull door on the left side and a pull handle on the left side. The surface of the pull handle has a positioning groove, and the left side of the storage box has a through groove. One side of the pull handle slides through the inside of the through groove, and the surface of the pull handle is inserted into the inside of the through groove.

[0008] Preferably, the storage box has a connecting groove communicating with the through groove inside, and a pull rod is slidably connected inside the connecting groove. The surface of the pull rod is inserted into the inside of the positioning groove. The storage box also has a functional groove communicating with the connecting groove inside.

[0009] Preferably, a functional plate is fixedly connected to the right side of the pull rod, the functional plate is slidably connected to the inside of the functional groove, a return spring is fixedly connected to the top of the functional plate, and the side of the return spring away from the functional plate is fixedly connected to the inside of the functional groove.

[0010] Preferably, a first spring is fixedly connected inside the protective groove. The first spring is movably sleeved on the first slide rod, and the end of the first spring near the first toothed plate is fixedly connected to the surface of the first toothed plate.

[0011] Preferably, a second spring is fixedly connected inside the protective groove. The second spring is movably sleeved on the second slide rod, and one end of the second spring near the second toothed plate is fixedly connected to the surface of the second toothed plate.

[0012] Preferably, the second cover plate and the first cover plate are provided with sliding grooves on their adjacent sides, and a clamping plate is slidably connected inside the sliding grooves. The second cover plate is provided with a fixing groove that communicates with the sliding grooves.

[0013] Preferably, a fixing plate is fixedly connected to both the left and right sides of the clamping plate, the fixing plate is slidably connected to the inside of the fixing groove, and an action spring is fixedly connected to the rear side of the fixing plate, with the end of the action spring away from the fixing plate being fixedly connected to the surface of the fixing groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention allows the device to position and fix connecting wires of different sizes by having the operator loosen the first cover plate, causing the first spring to clamp and reset. At the same time, the clamping plate moves backward, which in turn moves the fixing plate backward. The fixing plate then presses the spring backward, and the compression of the spring allows the device to position and fix connecting wires of different sizes. By positioning the connecting wires, the device is less likely to detach from the terminal block if the operator accidentally touches the connecting wire, thus protecting the testing progress of the device and making it more convenient for the operator to use the device.

[0016] By having the staff pull the lever upwards, the lever moves the function plate upwards, and the lever slides out of the surface of the bottom section of the handle. At this point, the lever no longer fixes the door, and the handle can be pulled outwards. The bottom section of the handle slides out of the through groove, and the door can then be opened. To close the door, simply pull the lever upwards again to let the bottom section of the handle slide back into the through groove for fixation. This device makes it convenient for staff to carry and access the contents of the box at any time, preventing delays in work due to forgetting to bring spare parts or spare wires. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main body of the device of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the device body of this utility model;

[0019] Figure 3 This is a schematic diagram of the protective box of this utility model;

[0020] Figure 4 This is a schematic diagram of the wire clamping plate of this utility model;

[0021] Figure 5 This is a schematic diagram of the storage box of this utility model.

[0022] In the diagram: 1. Equipment body; 2. Closed door; 3. Sliding door; 4. Storage box; 5. Pull handle; 6. Drawer rod; 7. First cover plate; 8. Second cover plate; 9. Protective box; 10. Protective groove;

[0023] 11. First slide bar; 12. Second slide bar; 13. Second toothed plate; 14. First toothed plate; 15. Cable clamping plate; 16. Terminal post; 17. Fixing groove; 18. Fixing plate; 19. Actuating spring; 20. Slide groove; 21. Through groove; 22. Connecting groove; 23. Functional plate; 24. Functional groove; 25. Return spring; 26. Gear; 27. First spring; 28. Second spring; 29. ​​Positioning groove. Specific Embodiments

[0024] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following will detail the specific embodiments, structures, features and their effects of the present utility model in conjunction with the accompanying drawings and preferred embodiments as follows.

[0025] Please refer to Figures 1-5 as shown, a portable stray current monitor,

[0026] including a device body 1, the device body 1 is an existing structure and will not be elaborated here too much. The device body 1 can detect current. A closing door 2 is provided at the top of the device body 1. A storage box 4 is fixedly connected to the left side of the device body 1. A sliding door 3 is provided on the left side of the storage box 4. A pull handle 5 is provided on the left side of the storage box 4. The shape of the pull handle 5 is a U-shape. A positioning groove 29 is provided on the surface of the pull handle 5. A through groove 21 is provided inside the storage box 4. One side of the pull handle 5 slides through the inside of the through groove 21. The surface of the pull handle 5 is inserted into the inside of the through groove 21. A connecting groove 22 communicating with the through groove 21 is provided inside the storage box 4. A draw rod 6 is slidably connected inside the connecting groove 22. The surface of the draw rod 6 is inserted into the inside of the positioning groove 29. A function groove 24 communicating with the connecting groove 22 is provided inside the storage box 4. A function plate 23 is fixedly connected to the right side of the draw rod 6. The function plate 23 is slidably connected inside the function groove 24. A return spring 25 is fixedly connected to the top of the function plate 23. The side of the return spring 25 away from the function plate 23 is fixedly connected to the inside of the function groove 24. Some working parts and spare circuits can be stored inside the storage box 4. When the staff needs parts for current detection, the draw rod 6 needs to be pulled upwards. The draw rod 6带动the function plate 23 upwards. At the same time, the draw rod 6 will slide out of the surface of the positioning groove 29. At this time, the draw rod 6 no longer fixes and restricts the sliding door 3. Then, the pull handle 5 is pulled outwards. The cross-section at the bottom of the pull handle 5 slides out of the inside of the through groove 21. At this time, the sliding door 3 can be opened. When it needs to be closed, just pull the draw rod 6 upwards again to make the cross-section at the bottom of the pull handle 5 slide into the through groove 21 for fixation. Through this device, it is convenient for the staff to carry and access the things inside the box at any time, and the work process will not be delayed due to forgetting to bring parts and spare wires;

[0027] A protective box 9 is fixedly connected inside the device body 1. A wiring column 16 is provided inside the protective box 9. Protective grooves 10 are provided on both the left and right sides of the protective box 9. A first toothed plate 14 is slidably connected inside the protective grooves 10. A first sliding rod 11 is fixedly connected inside the protective grooves 10. The surface of the first sliding rod 11 is slidably connected to the first toothed plate 14;

[0028] It should be noted that there are some inaccuracies in the original Chinese text such as "抽杆6带动the function plate 23 upwards" which should be "抽杆6带动功能板23向上". The above translation has been corrected according to the correct meaning.The protective groove 10 is slidably connected to a second toothed plate 13, which is in the opposite direction to the first toothed plate 14. The protective groove 10 is fixedly connected to a second slide rod 12, which is in the opposite direction to and parallel to the first slide rod 11. The surface of the second slide rod 12 is slidably connected to the second toothed plate 13.

[0029] A first spring 27 is fixedly connected inside the protective groove 10. The first spring 27 is movably sleeved on the first slide rod 11. The end of the first spring 27 near the first toothed plate 14 is fixedly connected to the surface of the first toothed plate 14. A second spring 28 is fixedly connected inside the protective groove 10. The second spring 28 is movably sleeved on the second slide rod 12. The end of the second spring 28 near the second toothed plate 13 is fixedly connected to the surface of the second toothed plate 13. A gear 26 is rotatably connected inside the protective groove 10. The first toothed plate 14 and the second toothed plate 13 are meshed with the surface of the gear 26 through their teeth. The gear 26 is located between the first toothed plate 14 and the second toothed plate 13. It should be noted that when the gear rotates, the movement directions of the first toothed plate 14 and the second toothed plate 13 are always opposite, and there will be no situation where the directions coincide.

[0030] The top of the first toothed plate 14 is fixedly connected to the first cover plate 7, and the top of the second toothed plate 13 is fixedly connected to the second cover plate 8. When it is necessary to fix or release the line, the operator pulls down the first cover plate 7, which in turn moves the first toothed plate 14. At the same time, the first toothed plate 14 drives the gear 26 to rotate, which in turn moves the second toothed plate 13. At this time, the line is fixed. When it is necessary to fix it, simply release the first cover plate 7. The first spring 27 will clamp and reset it due to the inertia of the spring. Similarly, the working principle of pulling the second cover plate 8 is the same. This device improves the tightness of the connection, enhances the convenience of the mechanism, and has high practicality. It avoids the situation of unstable current line during inspection, thereby improving the inspection efficiency of the operator and making it easier for the operator to operate. At the same time, it reduces the time wasted by the operator in manually fixing the line, and further improves the overall efficiency of the device.

[0031] Both the second cover plate 8 and the first cover plate 7 have sliding grooves 20 on their adjacent sides. A wire clamping plate 15 is slidably connected inside the sliding groove 20. The front end of the wire clamping plate 15 is arc-shaped. The second cover plate 8 has a fixing groove 17 communicating with the sliding groove 20 inside. Fixing plates 18 are fixedly connected to both the left and right sides of the wire clamping plate 15. The fixing plates 18 are slidably connected to the inside of the fixing grooves 17. A spring 19 is fixedly connected to the rear side of the fixing plate 18. The end of the spring 19 away from the fixing plate 18 is fixedly connected to the surface of the fixing groove 17. When the operator releases the first cover plate 7, the first spring... When the spring 27 clamps and resets, the second cover plate 8 presses forward against the first cover plate 7. While pressing, the clamping plate 15 moves backward, which in turn moves the fixing plate 18 backward. The fixing plate 18 then presses the action spring 19 backward. Through the compression of the action spring 19, the device can position and fix the connecting wires of different sizes. At the same time, by positioning the connecting wires, it is less likely that the connecting wires will come off the terminals if the operator accidentally touches them, thus protecting the testing progress of the device and making it easier for the operator to use the device.

[0032] Working principle: When the operator starts the device body 1, the device body 1 can monitor stray current through the connecting wire. The operator pulls down the first cover plate 7, which in turn moves the first toothed plate 14. At the same time, the first toothed plate 14 drives the gear 26 to rotate, which in turn moves the second toothed plate 13. This will fix the line. When you want to fix it, just release the first cover plate 7. The first spring 27 will clamp and reset it due to the inertia of the spring. Similarly, pulling the second cover plate 8 will achieve the same working principle. This device improves the tightness of the connection, enhances the convenience of the mechanism, and has extremely high practicality. It avoids the situation of unstable current lines during inspection, thereby improving the operator's detection efficiency and making it easier for the operator to operate. At the same time, it reduces the time wasted by the operator in manually fixing the line, and further improves the overall efficiency of the device.

[0033] When the operator releases the first cover plate 7, the first spring 27 clamps and resets. At this time, the second cover plate 8 presses forward against the first cover plate 7. While pressing, the clamping plate 15 moves backward, which in turn moves the fixing plate 18 backward. The fixing plate 18 then presses the action spring 19 backward. The compression of the action spring 19 enables the device to position and fix connecting wires of different sizes. At the same time, by positioning the connecting wires, it is less likely that the connecting wires will come off the terminals if the operator accidentally touches them, thus protecting the detection accuracy of the device and making it more convenient for the operator to use the device.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A portable stray current monitor comprising a device body (1), characterized in that, Also includes: The top of the device body (1) is provided with a closing door (2), the left side of the device body (1) is fixedly connected with a storage box (4), the inside of the device body (1) is fixedly connected with a protection box (9), the inside of the protection box (9) is provided with a terminal post (16), the left and right sides of the top of the protection box (9) are both provided with a protection groove (10), the inside of the protection groove (10) is slidably connected with a first toothed plate (14), the inside of the protection groove (10) is fixedly connected with a first sliding rod (11), the surface of the first sliding rod (11) is slidably connected with the first toothed plate (14), the inside of the protection groove (10) is slidably connected with a second toothed plate (13), the inside of the protection groove (10) is fixedly connected with a second sliding rod (12), the surface of the second sliding rod (12) is slidably connected with the second toothed plate (13), the inside of the protection groove (10) is rotatably connected with a gear (26), the first toothed plate (14) and the second toothed plate (13) are meshingly connected with the surface of the gear (26) through teeth, the gear (26) is arranged between the first toothed plate (14) and the second toothed plate (13), the top of the first toothed plate (14) is fixedly connected with a first cover plate (7), and the top of the second toothed plate (13) is fixedly connected with a second cover plate (8).

2. The portable stray current monitor of claim 1, wherein: The left side of the storage box (4) is provided with a sliding door (3), the left side of the storage box (4) is provided with a pull handle (5), the surface of the pull handle (5) is provided with a positioning groove (29), the left side of the storage box (4) is provided with a through groove (21), one side of the pull handle (5) slidably penetrates into the inside of the through groove (21), and the surface of the pull handle (5) is inserted into the inside of the through groove (21).

3. A portable stray current monitor according to claim 2, characterised in that: The inside of the storage box (4) is provided with a connecting groove (22) in communication with the through groove (21), the inside of the connecting groove (22) is slidably connected with a drawer rod (6), the surface of the drawer rod (6) is inserted into the inside of the positioning groove (29), and the inside of the storage box (4) is provided with a function groove (24) in communication with the connecting groove (22).

4. The portable stray current monitor of claim 3, wherein: The right side of the drawer rod (6) is fixedly connected with a function plate (23), the function plate (23) is slidably connected with the inside of the function groove (24), the top of the function plate (23) is fixedly connected with a return spring (25), and one side, away from the function plate (23), of the return spring (25) is fixedly connected with the inside of the function groove (24).

5. The portable stray current monitor of claim 1, wherein: The inside of the protection groove (10) is fixedly connected with a first spring (27), the first spring (27) is movably sleeved on the first sliding rod (11), and one end, close to the first toothed plate (14), of the first spring (27) is fixedly connected with the surface of the first toothed plate (14).

6. A portable stray current monitor according to claim 5, characterised in that: The inside of the protection groove (10) is fixedly connected with a second spring (28), the second spring (28) is movably sleeved on the second sliding rod (12), and one end, close to the second toothed plate (13), of the second spring (28) is fixedly connected with the surface of the second toothed plate (13).

7. The portable stray current monitor of claim 1, wherein: The second cover plate (8) and the first cover plate (7) are provided with sliding grooves (20) on the adjacent sides, the sliding grooves (20) are slidably connected with the thread clamping plates (15), and the second cover plate (8) is provided with fixed grooves (17) communicating with the sliding grooves (20).

8. A portable stray current monitor according to claim 7, characterised in that: The left and right sides of the thread clamping plates (15) are fixedly connected with fixed plates (18), the fixed plates (18) are slidably connected with the fixed grooves (17), the rear sides of the fixed plates (18) are fixedly connected with acting springs (19), and the ends, away from the fixed plates (18), of the acting springs (19) are fixedly connected with the surfaces of the fixed grooves (17).

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