Portable electric energy quality monitoring equipment

Abstract

The invention relates to the technical field of electric power monitoring technologies, and discloses a portable electric energy quality monitoring device which comprises a monitoring device body, a winding mechanism, an adjusting mechanism and a cleaning mechanism, the winding mechanism comprises a winding shaft, a reciprocating screw rod, a traction ring, a plug cord and a recycling assembly, the winding shaft is rotatably connected to the interior of the monitoring device body, and the reciprocating screw rod is rotatably connected to the monitoring device body. The reciprocating lead screw is rotationally connected to the interior of the monitoring equipment body through the adjusting mechanism, the traction ring is arranged on the reciprocating lead screw, one end of the plug cord is wound around the periphery of the winding shaft, and the other end of the plug cord is wound around the periphery of the traction ring. According to the plug cord detection device, the situation that the plug cords are not effectively stored and managed after detection and are prone to being treaded, pulled or damaged by other external force can be prevented, meanwhile, mutual winding of the plug cords in the winding process is prevented, the working efficiency is improved, and an operator can carry the plug cords more conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power monitoring technology, and in particular to a portable power quality monitoring device. Background Art

[0002] Power quality monitoring equipment is an instrument used to monitor and analyze the power quality in power systems. It can measure and record parameters such as voltage, current, frequency, power factor, harmonics, etc. to evaluate the stability and reliability of the power system. These devices are widely used in multiple scenarios such as the power industry, industrial manufacturing, data centers, and new energy fields. For example, in the power industry, power quality monitoring equipment can help power companies monitor the status of the power grid and promptly detect and resolve power quality problems such as voltage fluctuations and harmonic pollution to ensure the stability and safety of the power supply. In industrial manufacturing, these devices can ensure the normal operation of production equipment and avoid equipment failures or production interruptions due to power quality problems.

[0003] Chinese invention patent publication number CN119165208A discloses a portable power monitoring device and its use method, including a power monitoring device body, a socket, a display screen, a socket dustproof module, a sliding plug module and a plug limit module. When in use, the plug is slid to open the plug limit module, so that the male end of the plug extends outward from the storage slot, the plug is inserted into the energized socket strip to be tested, the socket dustproof module is slid to expose the socket, the device to be monitored is inserted into the socket, the power of the socket strip is monitored, and the monitoring data is displayed on the display screen. After the test is completed, the plug of the device to be tested is unplugged, the socket dustproof module is slid to cover the socket, the plug of the device is slid back into the storage slot, the plug limit module is automatically reset, and the storage slot is closed, which can provide storage protection for the plug, prevent the plug from being exposed to the outside for a long time and causing damage due to bumps, and prevent the socket from being damaged by dirt. The structure is simple and the operation is convenient.

[0004] During the use of existing power quality monitoring equipment in the prior art, it is necessary to insert the plug of the power quality monitoring equipment into the device to be monitored to measure its power quality and analyze its data. However, the plug wire of the power quality monitoring equipment is often not effectively stored and managed after the detection is completed, and is easily damaged by being stepped on, pulled or subjected to other external forces. It also increases the possibility of the plug wires being entangled with each other, causing signal interference or transmission errors, and affecting the accuracy of the detection results.

[0005] Therefore, it is necessary to provide a portable power quality monitoring device to solve the above technical problems. Summary of the Invention

[0006] The object of the present invention is to provide a portable power quality monitoring device to solve the existing problems in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a monitoring device body, a winding mechanism, an adjustment mechanism and a cleaning mechanism, the winding mechanism is arranged inside the monitoring device body, the winding mechanism includes a winding shaft, a reciprocating screw rod, a traction ring, a plug wire and a recovery assembly, the winding shaft is rotatably connected to the inside of the monitoring device body, the reciprocating screw rod is rotated and connected to the inside of the monitoring device body through the adjustment mechanism, and the reciprocating screw rod is arranged close to the winding shaft, the traction ring is arranged on the reciprocating screw rod, one end of the plug wire is wound around the outer periphery of the winding shaft, and the other end of the plug wire is wound around the outer periphery of the traction ring, the recovery assembly is used to make the winding shaft rotate in the opposite direction to rewind the plug wire, the adjustment assembly is used to adjust the distance between the reciprocating screw rod and the winding shaft, and the cleaning mechanism is used to clean the surface of the plug wire.

[0008] As a further solution of the present invention, the outer circumference of the reciprocating screw is provided with a forward groove and a reverse groove along the length direction. The forward groove and the reverse groove are arranged crosswise, and the forward groove and the reverse groove have the same size and width.

[0009] As a further solution of the present invention, a slider is connected to the forward groove, and the slider slides back and forth alternately in the forward groove and the reverse groove, and the bottom of the traction ring is fixedly connected to the upper surface of the slider.

[0010] As a further solution of the present invention, the recovery component includes a ratchet, a clockwork spring, a spring and a clamping strip, the ratchet is fixedly connected to one end of the winding shaft, the clockwork spring is sleeved on the outer periphery of the rotating axis of the winding shaft, and one end of the clockwork spring is fixedly connected to one end of the winding shaft, the other end of the clockwork spring is fixedly connected to the inner wall of the monitoring device body, and an installation opening is opened on the outer wall of the monitoring device body. The clamping strip is rotatably connected in the installation opening, and one end of the clamping strip is located inside the monitoring device body and clamped with the ratchet, and the other end of the clamping strip is located outside the monitoring device body, and the spring is fixedly connected between the bottom of the clamping strip and the bottom wall inside the monitoring device body.

[0011] As a further solution of the present invention, the adjustment mechanism includes a stud, an extrusion block, a compression spring and a limit assembly. Installation grooves are provided on the inner walls on both sides of the monitoring equipment body. The extrusion block is slidably connected in the installation groove. The compression spring is fixedly installed between the rear wall of the extrusion block and the rear wall of the installation groove. Threaded holes are provided on the front wall of the installation groove and the front wall of the extrusion block. The stud is threadedly connected to the threaded hole. The limit assembly is used to limit the moving direction of the extrusion block.

[0012] As a further solution of the present invention, the limiting assembly includes a limiting block and a limiting groove, the limiting groove is opened at the top and bottom of the installation groove, the limiting block is fixedly connected to the top and bottom of the extrusion block, and the limiting block is slidably connected in the limiting groove.

[0013] As a further solution of the present invention, a wire outlet is also provided on the front end surface of the monitoring device body, and a placement shell is slidably arranged in the wire outlet. The placement shell is located at one end inside the monitoring device and is fixedly connected to a mounting plate. A connecting hole is provided on the mounting plate, and the connecting hole is the same size as the diameter of the plug wire. A plug is provided at the end of the plug wire away from the winding shaft, and the plug is arranged in the placement shell.

[0014] As a further solution of the present invention, the cleaning mechanism includes a group of arc-shaped abutment plates, cleaning cotton and a group of extrusion springs. One group of the arc-shaped abutment plates is fixedly installed inside the placement shell and is respectively located on both sides of the plug wire. One group of the extrusion springs is respectively fixedly connected between the outer periphery of the arc-shaped abutment plate and the inner wall of the placement shell. The cleaning cotton is fixedly installed on the inner wall of the arc-shaped abutment plate.

[0015] As a further solution of the present invention, a protective component is also provided on the monitoring device body, and the protective component includes a protective shell, a slide rail and a fixing stud. The slide rail is fixedly installed on the outer walls on both sides of the monitoring device body, the protective shell is slidably connected to the slide rail, and the fixing stud is threadedly connected to the protective shell and the slide rail.

[0016] The present invention cooperates with the winding shaft, ratchet, spring, spring and clamping strip to quickly retract and release the plug wire when performing power quality detection, which can prevent the plug wire from being effectively stored and managed after the detection is completed, and being easily damaged by being stepped on, pulled or subjected to other external forces. At the same time, it prevents the plug wires from being entangled with each other, improves work efficiency, effectively performs power quality monitoring work, and makes it more convenient for operators to carry. A reciprocating screw rod, a traction ring and a slider are further provided to cooperate with the winding shaft to effectively avoid cable entanglement and tangling when the plug wire is reeled in, and avoid uneven force or repeated force on the plug wire. The bending situation is eliminated, thereby extending its service life. At the same time, the plug wire can be released quickly during the release process to ensure smooth use. An adjustment mechanism is further provided to adjust the distance between the reciprocating screw rod and the reel, thereby changing the tension of the plug wire when it is reeled, avoiding the situation where the plug wire is reeled too tightly or too loosely. A cleaning mechanism is further provided to remove dust, dirt and other contaminants on the surface of the plug wire through friction with the cleaning cotton inside the arc-shaped abutment plate during the reeling and releasing process, thereby preventing the insulation performance of the plug wire from deteriorating, avoiding short circuits, and improving the service life of the plug wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and examples.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention after the protective shell is removed;

[0020] Figure 3 Schematic diagram of the internal structure of the shell of the present invention;

[0021] Figure 4 It is a structural schematic diagram of the winding mechanism of the present invention;

[0022] Figure 5 It is a schematic structural diagram of the recycling component of the present invention;

[0023] Figure 6 It is a schematic diagram of the reciprocating screw structure of the present invention;

[0024] Figure 7 is a cross-sectional view of the interior of the placement shell of the present invention;

[0025] Figure 8 It is a schematic structural diagram of the regulating mechanism of the present invention;

[0026] Figure 9 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0027] Figure 10 for Figure 9 Enlarged view of part A in the middle.

[0028] In the figure: 1. Monitoring equipment body; 2. Winding mechanism; 21. Winding shaft; 22. Reciprocating screw; 23. Traction ring; 24. Plug wire; 25. Recovery assembly; 251. Ratchet; 252. Clockwork spring; 253. Spring; 254. Snap-on strip; 3. Cleaning mechanism; 31. Arc-shaped abutment plate; 32. Cleaning cotton; 33. Extrusion spring; 4. Adjustment mechanism; 41. Stud; 42. Extrusion block; 43. Compression spring; 44. Limiting assembly; 441. Limiting block; 442. Limiting groove; 5. Forward groove; 6. Reverse groove; 7. Slider; 8. Mounting port; 9. Threaded hole; 10. Mounting slot; 11. Wire outlet; 12. Placement shell; 13. Mounting plate; 14. Connecting hole; 15. Plug; 16. Protective assembly; 161. Protective shell; 162. Slide rail; 163. Fixing stud. DETAILED DESCRIPTION

[0029] Example 1

[0030] like Figure 1-Figure 3As shown, the winding mechanism 2 is arranged inside the monitoring device body 1, and the winding mechanism 2 includes a winding shaft 21, a reciprocating screw rod 22, a traction ring 23, a plug wire 24 and a recovery assembly 25. The winding shaft 21 is rotatably connected to the inside of the monitoring device body 1, and the reciprocating screw rod 22 is rotated and connected to the inside of the monitoring device body 1 through the adjustment mechanism 4. The reciprocating screw rod 22 is arranged close to the winding shaft 21, and the traction ring 23 is arranged on the reciprocating screw rod 22. One end of the plug wire 24 is wound around the outer periphery of the winding shaft 21, and the other end of the plug wire 24 is wound around the outer periphery of the traction ring 23;

[0031] like Figure 4-Figure 5 As shown, the recovery component 25 includes a ratchet 251, a clockwork spring 252, a spring 253 and a snap-on strip 254. The ratchet 251 is fixedly connected to one end of the winding shaft 21. The clockwork spring 252 is sleeved on the outer periphery of the rotating axis of the winding shaft 21, and one end of the clockwork spring 252 is fixedly connected to one end of the winding shaft 21. The other end of the clockwork spring 252 is fixedly connected to the inner wall of the monitoring device body 1. A mounting port 8 is provided on the outer wall of the monitoring device body 1. The snap-on strip 254 is rotatably connected to the mounting port 8, and one end of the snap-on strip 254 is located inside the monitoring device body 1 and is snapped into the ratchet 251. The other end of the snap-on strip 254 is located outside the monitoring device body 1. The spring 253 is fixedly connected between the bottom of the snap-on strip 254 and the bottom wall inside the monitoring device body 1.

[0032] During use, during the process of monitoring the power quality, the plug cord 24 is first pulled to release the plug cord 24 wound on the reel 21. When it is released to a suitable length, the clamping strip 254 is toggled, and the spring 253 first makes the clamping strip 254 contact with the teeth on the ratchet 251, so that the reel 21 stops rotating, and then the plug cord 24 is inserted into the device to be monitored for monitoring. At the same time, during the process of releasing the plug cord 24, the spring spring 252 set at one end of the reel 21 is opened and tightened. When the monitoring is completed, the clamping strip 254 is toggled again, so that the clamping strip 254 is misaligned with the teeth on the ratchet 251 under the action of the spring 253, and the reel 21 is no longer fixed. In the process of the spring spring 252 recovering its deformation, it will drive the reel 21 in the opposite direction to retract the plug cord 24.

[0033] The effect of such a configuration is that the reel 21, the ratchet 251, the spring 252, the spring 253 and the clamping strip 254 cooperate with each other to quickly retract and release the plug cord 24 during power quality testing, thereby preventing the plug cord 24 from being effectively stored and managed after the test is completed and being easily damaged by being stepped on, pulled or subjected to other external forces. At the same time, the plug cords 24 are prevented from being entangled with each other, thereby improving work efficiency and effectively performing power quality monitoring work.

[0034] like Figure 6As shown, the outer circumference of the reciprocating screw 22 is provided with a forward groove 5 and a reverse groove 6 along the length direction. The forward groove 5 and the reverse groove 6 are arranged crosswise, and the forward groove 5 and the reverse groove 6 are the same size and width. A slider 7 is connected to the forward groove 5. The slider 7 slides back and forth alternately in the forward groove 5 and the reverse groove 6. The bottom of the traction ring 23 is fixedly connected to the upper surface of the slider 7.

[0035] When in use, during the process of retrieving and releasing the plug wire 24, the plug wire 24 passes through the traction ring 23 and generates a traction force, causing the traction ring 23 to move along the forward groove 5 or the reverse groove 6 on the reciprocating screw rod 22, thereby causing the traction ring 23 to pull the plug wire 24 and rewind or release it in an orderly manner along the length direction of the reel 21;

[0036] The effect of this arrangement is that the reciprocating screw rod 22, the traction ring 23 and the slider 7 are used in conjunction with the reeling shaft 21, so that the plug cord 24 can effectively avoid cable entanglement and tangling when it is reeled in, and avoid uneven force or repeated bending of the plug cord 24, thereby extending its service life. At the same time, during the release process, the plug cord 24 can be released quickly to ensure smooth use.

[0037] Example 2

[0038] Based on the first embodiment, Figure 8 The adjustment mechanism 4 includes a stud 41, an extrusion block 42, a compression spring 43 and a limit assembly 44. Mounting grooves 10 are provided on the inner walls on both sides of the monitoring device body 1. The extrusion block 42 is slidably connected in the mounting groove 10. The compression spring 43 is fixedly installed between the rear wall of the extrusion block 42 and the rear wall of the mounting groove 10. Threaded holes 9 are provided on the front wall of the mounting groove 10 and the front wall of the extrusion block 42. The stud 41 is threadedly connected to the threaded hole 9. The limit assembly 44 is used to limit the moving direction of the extrusion block 42.

[0039] During use, when the plug wire 24 on the reel 21 is wound too tightly, the stud 41 is twisted inward to move the stud 41 forward, so that the stud 41 pushes the extrusion block 42 forward, and the extrusion block 42 drives the reciprocating screw rod 22 toward the reel 21, thereby reducing the tension of the plug wire 24 when it is wound. When the plug wire 24 on the reel 21 is wound too loosely, the stud 41 is twisted outward to move the stud 41 backward, and cooperate with the force generated by the compression spring 43 to push the extrusion block 42 backward, so that the extrusion block 42 drives the reciprocating screw rod 22 away from the reel 21, thereby increasing the tension of the plug wire 24 when it is wound.

[0040] The effect of this arrangement is to adjust the distance between the reciprocating screw rod 22 and the winding shaft 21, thereby changing the tension of the plug wire 24 when winding, avoiding the plug wire 24 from being wound too tightly or too loosely, and thus avoiding the plug wire 24 from being wound and released unsmoothly.

[0041] like Figure 3 and Figure 8 The limiting assembly 44 includes a limiting block 441 and a limiting groove 442. The limiting groove 442 is opened at the top and bottom of the installation groove 10. The limiting block 441 is fixedly connected to the top and bottom of the extrusion block 42, and the limiting block 441 is slidably connected in the limiting groove 442.

[0042] During use, as the extrusion block 42 moves, the limit block 441 slides back and forth in the limit groove 442, so that the extrusion block 42 can only move along the direction within the installation groove 10, avoiding the extrusion block 42 from being misplaced during movement, thereby causing tension adjustment failure.

[0043] Example 3

[0044] On the basis of embodiment 1 or 2, Figure 2 and Figure 7 As shown, the cleaning mechanism 3 includes a set of arc-shaped abutment plates 31, cleaning cotton 32 and a set of extrusion springs 33. A set of arc-shaped abutment plates 31 are fixedly installed inside the placement shell 12 and are respectively located on both sides of the plug wire 24. A set of extrusion springs 33 are respectively fixedly connected between the outer periphery of the arc-shaped abutment plates 31 and the inner wall of the placement shell 12. The cleaning cotton 32 is fixedly installed on the inner wall of the arc-shaped abutment plates 31.

[0045] The front end surface of the monitoring device body 1 is also provided with a wire outlet 11, and a placement shell 12 is slidably provided in the wire outlet 11. One end of the placement shell 12 located inside the monitoring device is fixedly connected to a mounting plate 13. A connecting hole 14 is provided on the mounting plate 13. The connecting hole 14 has the same diameter as the plug wire 24. A plug 15 is provided at the end of the plug wire 24 away from the reel 21. The plug 15 is arranged in the placement shell 12.

[0046] During use, when the plug wire 24 is being retrieved and released, the plug wire 24 passes through the connection hole 14 on the mounting plate 13 and passes through the arc-shaped abutment plate 31 in sequence to form an annular ring. Under the pressure of the extrusion spring 33, the surface of the plug wire 24 rubs against the cleaning cotton 32 inside the arc-shaped abutment plate 31, thereby cleaning the surface of the plug wire 24.

[0047] The effect of this arrangement is that during the process of winding and releasing the plug wire 24, the plug wire 24 generates friction with the cleaning cotton 32 inside the arc-shaped abutment plate 31, thereby removing dust, dirt and other contaminants on the surface of the plug wire 24, preventing the insulation performance of the plug wire 24 from being degraded, avoiding the occurrence of short circuits, and extending the service life of the plug wire 24;

[0048] At the same time, a placement shell 12 is provided so that the plug 15 on the plug wire 24 can be accommodated in the placement shell 12 to prevent the plug 15 from being placed in the outside and colliding with objects, which would affect the normal use of the plug 15. An outlet 11 is provided so that the placement shell 12 can move along the outlet 11 to prevent the plug 15 from not being able to move with the plug wire 24, thereby preventing the plug 15 from being pulled during the winding process of the plug wire 24, which would affect the normal winding.

[0049] like Figure 7 As shown, the monitoring device body 1 is further provided with a protective assembly 16, which includes a protective shell 161, a slide rail 162 and a fixing stud 163. The slide rail 162 is fixedly mounted on the outer walls of both sides of the monitoring device body 1, the protective shell 161 is slidably connected to the slide rail 162, and the fixing stud 163 is threadedly connected to the protective shell 161 and the slide rail 162;

[0050] When the monitoring device is used, the protective shell 161 is inserted into the slide rail 162 and moved along the slide rail 162. When the protective shell 161 completely covers the front surface of the monitoring device, it is fixed by tightening the fixing screws, and then the monitoring device is folded up and stored.

[0051] The effect of this arrangement is that, by providing a protective shell 161, the monitoring device can be protected when not in use to avoid collisions with the front face of the air flow, thereby affecting its normal use. At the same time, the protective shell 161 can also block dust and other pollutants from entering the interior of the monitoring device body 1 through the outlet 11, further improving the practicality of the device.

[0052] Working principle: When in use, first pull the plug line 24 to release the plug line 24 wound on the reel 21. When it is released to a suitable length, toggle the clamping strip 254. Under the action of the spring 253, the clamping strip 254 first contacts the teeth on the ratchet 251, so that the reel 21 stops rotating. Then, the plug line 24 is inserted into the device to be monitored for monitoring. At the same time, during the process of releasing the plug line 24, the spring spring 252 at one end of the reel 21 opens and tightens. When the monitoring is completed, toggle the clamping strip 254 again to tighten the clamping strip 254. Under the action of the spring 253, the spring 252 is misaligned with the teeth on the ratchet 251 and no longer fixes the reel 21. When the spring 252 recovers its deformation, it drives the reel 21 in the opposite direction to retract the plug cord 24. The plug cord 24 is quickly retracted and released, which can prevent the plug cord 24 from being damaged by being stepped on, pulled or subjected to other external forces after the test is completed. At the same time, it prevents the plug cords 24 from being entangled with each other, thereby improving work efficiency and effectively monitoring the power quality.

[0053] During the process of retrieving and releasing the plug wire 24, the plug wire 24 will pass through the traction ring 23 and generate a traction force, so that the traction ring 23 moves along the forward groove 5 or the reverse groove 6 on the reciprocating screw rod 22, so that the traction ring 23 pulls the plug wire 24 and rewinds or releases it in an orderly manner along the length direction of the reel 21, effectively avoiding cable entanglement and tangling, and avoiding uneven force or repeated bending of the plug wire 24, thereby extending its service life. At the same time, during the release process, the plug wire 24 can be released quickly to ensure smooth use.

[0054] When the plug wire 24 on the take-up shaft 21 is too tight, the stud 41 is twisted inwardly to move the stud 41 forward, thereby pushing the extrusion block 42 forward, so that the extrusion block 42 drives the reciprocating screw rod 22 toward the take-up shaft 21, reducing the tension of the plug wire 24 when it is reeled in. When the plug wire 24 on the take-up shaft 21 is too loose, the stud 41 is twisted outwardly to move the stud 41 backward, and the force generated by the compression spring 43 is used to push the extrusion block 42 backward, so that the extrusion block 42 drives the reciprocating screw rod 22 away from the take-up shaft 21, increasing the tension of the plug wire 24 when it is reeled in, adjusting the distance between the reciprocating screw rod 22 and the take-up shaft 21, thereby changing the tension of the plug wire 24 when it is reeled in, avoiding the situation where the plug wire 24 is reeled in too tight or too loose, thereby avoiding the situation where the plug wire 24 is not reeled in and released smoothly.

[0055] During the movement of the extrusion block 42, the limiting block 441 slides back and forth in the limiting groove 442, so that the extrusion block 42 can only move along the direction within the installation groove 10, thereby preventing the extrusion block 42 from being misplaced during the movement, thereby causing tension adjustment failure.

[0056] When the plug wire 24 is recovered and released, the plug wire 24 will pass through the connecting hole 14 on the mounting plate 13 and pass through the arc-shaped abutment plate 31 in turn to form an annular ring. Under the pressure of the extrusion spring 33, the surface of the plug wire 24 will rub against the cleaning cotton 32 inside the arc-shaped abutment plate 31, thereby cleaning the surface of the plug wire 24, preventing the insulation performance of the plug wire 24 from deteriorating, avoiding short circuits, and improving the service life of the plug wire 24. When the monitoring device is used up, the protective shell 161 is inserted into the slide rail 162 and moved along the slide rail 162. When the protective shell 161 completely covers the front end surface of the monitoring device, it is fixed by tightening the fixing screws, and then the monitoring device is put away and stored to avoid collisions on the front end surface, thereby affecting its normal use. At the same time, the protective shell 161 can also block dust and other pollutants from entering the interior of the monitoring device body 1 through the outlet 11, further improving the practicality of the device.

Claims

1. A portable power quality monitoring device, characterized by: It includes a monitoring device body, a winding mechanism, an adjustment mechanism and a cleaning mechanism. The winding mechanism is arranged inside the monitoring device body. The winding mechanism includes a winding shaft, a reciprocating screw rod, a traction ring, a plug wire and a recovery component. The winding shaft is rotatably connected to the inside of the monitoring device body. The reciprocating screw rod is rotated and connected to the inside of the monitoring device body through the adjustment mechanism, and the reciprocating screw rod is arranged close to the winding shaft. The traction ring is arranged on the reciprocating screw rod. One end of the plug wire is wound around the outer periphery of the winding shaft, and the other end of the plug wire is wound around the outer periphery of the traction ring. The recovery component is used to rotate the winding shaft in the opposite direction to rewind the plug wire. The adjustment component is used to adjust the distance between the reciprocating screw rod and the winding shaft. The cleaning mechanism is used to clean the surface of the plug wire.

2. The portable power quality monitoring device according to claim 1, characterized in that: A forward groove and a reverse groove are provided on the outer circumference of the reciprocating screw rod along the length direction. The forward groove and the reverse groove are cross-arranged, and the forward groove and the reverse groove have the same size and width.

3. A portable power quality monitoring device according to claim 2, characterized in that: A slider is connected in the forward groove, and the slider slides back and forth alternately in the forward groove and the reverse groove, and the bottom of the traction ring is fixedly connected to the upper surface of the slider.

4. The portable power quality monitoring device according to claim 1, characterized in that: The recovery component includes a ratchet, a clockwork spring, a spring and a clamping strip, the ratchet is fixedly connected to one end of the winding shaft, the clockwork spring is sleeved on the outer circumference of the rotating shaft of the winding shaft, and one end of the clockwork spring is fixedly connected to one end of the winding shaft, the other end of the clockwork spring is fixedly connected to the inner wall of the monitoring device body, and a mounting opening is provided on the outer wall of the monitoring device body, the clamping strip is rotatably connected in the mounting opening, and one end of the clamping strip is located inside the monitoring device body and clamped with the ratchet, and the other end of the clamping strip is located outside the monitoring device body, and the spring is fixedly connected between the bottom of the clamping strip and the bottom wall inside the monitoring device body.

5. The portable power quality monitoring device according to claim 4, characterized in that: The adjustment mechanism includes a stud, an extrusion block, a compression spring and a limit assembly. Installation grooves are provided on the inner walls on both sides of the monitoring equipment body. The extrusion block is slidably connected in the installation groove. The compression spring is fixedly installed between the rear wall of the extrusion block and the rear wall of the installation groove. Threaded holes are provided on the front wall of the installation groove and the front wall of the extrusion block. The stud is threadedly connected to the threaded holes. The limit assembly is used to limit the moving direction of the extrusion block.

6. The portable power quality monitoring device according to claim 5, characterized in that: The limiting assembly includes a limiting block and a limiting groove, wherein the limiting groove is opened at the top and bottom of the installation groove, the limiting block is fixedly connected to the top and bottom of the extrusion block, and the limiting block is slidably connected in the limiting groove.

7. The portable power quality monitoring device according to claim 1, characterized in that: A wire outlet is also provided on the front end surface of the monitoring device body, and a placement shell is slidably provided in the wire outlet. One end of the placement shell located inside the monitoring device is fixedly connected to a mounting plate, and a connecting hole is provided on the mounting plate. The connecting hole is the same size as the diameter of the plug wire, and a plug is provided at the end of the plug wire away from the winding shaft, and the plug is arranged in the placement shell.

8. The portable power quality monitoring device according to claim 7, characterized in that: The cleaning mechanism includes a group of arc-shaped abutment plates, cleaning cotton and a group of extrusion springs. One group of the arc-shaped abutment plates is fixedly installed inside the placement shell and is respectively located on both sides of the plug wire. One group of the extrusion springs is respectively fixedly connected between the outer periphery of the arc-shaped abutment plates and the inner wall of the placement shell. The cleaning cotton is fixedly installed on the inner wall of the arc-shaped abutment plates.

9. The portable power quality monitoring device according to claim 1, characterized in that: The monitoring device body is also provided with a protective component, which includes a protective shell, a slide rail and a fixing stud. The slide rail is fixedly mounted on the outer walls on both sides of the monitoring device body, the protective shell is slidably connected to the slide rail, and the fixing stud is threadedly connected to the protective shell and the slide rail.

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