Partial discharge detector

Abstract

The embodiment of the utility model provides a partial discharge detector. Comprising a discharge detector body, a connecting wire which is telescopically arranged in the discharge detector body, a pushing and lifting assembly which is arranged in the discharge detector body and is used for controlling the telescopic length of the connecting wire, and a cleaning assembly which is arranged in the discharge detector body and is used for cleaning the connecting wire, the cleaning assembly comprises a cleaning disc, a cylinder barrel, a piston and a piston rod, the cleaning disc corresponds to the connecting line and communicates with the cylinder barrel, the piston is slidably arranged in the cylinder barrel, the first end of the piston rod is connected with the piston, and the second end of the piston rod is connected with the pushing assembly; and the gas in the cylinder barrel is blown to the surface of the connecting line through the cleaning disc under the driving of the pushing and lifting assembly. Through mechanical linkage, the connecting line is telescopic and cleaned, the problems that in the prior art, the connecting line is prone to being contaminated by dust, and dust is accumulated in the connecting line are effectively solved, the reliability of the detector is improved, the service life of the detector is prolonged, and the detection precision of the detector is improved.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of discharge detection, and particularly relates to a partial discharge detector. Background Art

[0002] In a solid dielectric with gas or liquid, when the local electric field strength exceeds the breakdown field strength of the gas or liquid, partial discharge will occur in this area. This phenomenon is usually caused by the existence of electric field concentration inside or on the surface of the insulator. In order to detect partial discharge, a partial discharge detector is usually used, and this instrument generally includes a detector main body and a connecting wire.

[0003] For example, a partial discharge detector disclosed in Chinese Patent Application No. CN202322775440.1, the specific content of which is as follows: Twist the knob to make the transmission screw rod rotate in the threaded sleeve rod, and make the sliding block move on the traction cavity, so as to facilitate the threaded sleeve rod to drive the operation disk to move, so that the operation disk, the connection disk and the fixed disk are moved out to one side of the detector main body, press the pressing block, so that the fixing plate drives the telescopic spring to contract, and the traction disk drives the clamping rod away from the clamping groove, and the plug on the connecting wire is clamped with the wiring head on the detector main body, and the connecting wire is wound around the connection disk, so that the connecting wire wound around the connection disk is placed in the placement groove, release the pressing block, so that the clamping rod clamps the clamping groove, and the connecting wire can make reasonable use of the length, and will not cause the connecting wire to drag to the ground and be contaminated with dust, affecting placement and use. At the same time, the threaded sleeve rod drives the operation disk to move, so that the operation disk, the connection disk and the fixed disk are convenient to be placed in the placement groove and are convenient to carry. It has the following technical problems:

[0004] When the partial discharge detector is in use, after the connecting wire is drawn out from the fixed disk, the dust in the air will still adhere to the connecting wire. When the connecting wire is put into the fixed disk, the dust will adhere to the inside of the fixed disk. After long-term use, more dust is likely to accumulate in the fixed disk, so that the connecting wire will also be contaminated with dust. It can be seen that the above structure is difficult to clean the dust on the connecting wire. Summary of the Utility Model

[0005] The embodiment of the utility model aims to at least solve one of the technical problems existing in the prior art, and provides a partial discharge detector.

[0006] The embodiment of the utility model provides a partial discharge detector, including: a discharge detector main body, a connecting wire that is telescopically arranged in the discharge detector main body, a lifting component that is arranged in the discharge detector main body and is used to control the telescopic length of the connecting wire, and a cleaning component that is arranged in the discharge detector main body and is used to clean the connecting wire; wherein,

[0007] The cleaning assembly includes a cleaning disk, a cylinder, a piston and a piston rod. The cleaning disk corresponds to the connecting line and is connected to the cylinder. The piston is slidably arranged in the cylinder. The first end of the piston rod is connected to the piston, and the second end of the piston rod is connected to the pushing assembly, so that the gas in the cylinder is blown toward the surface of the connecting line through the cleaning disk under the drive of the pushing assembly.

[0008] In some possible embodiments, a first chamber and a second chamber are provided inside the discharge detector body, and the connecting wire and the cleaning assembly are provided in the second chamber.

[0009] In some possible embodiments, a threaded sleeve is provided at the bottom of the second chamber, a threaded column corresponding to the threaded sleeve is provided at the lower end of the cylinder, the lower end of the threaded column is connected to an air pipe for transporting gas into the cleaning disk, and the threaded column is inserted into the threaded sleeve to limit the cylinder.

[0010] In some possible embodiments, a first limiting rod for guiding the connecting line is provided in the middle of the second chamber, and a partition is provided at the upper end of the second chamber.

[0011] In some possible embodiments, a first connector is installed at one end of the connecting line, and a plug is installed at the other end of the connecting line, and both the first connector and the plug are arranged on a side of the partition away from the threaded sleeve.

[0012] In some possible implementations, the push-up assembly includes a lifting plate, a second limiting rod, a third limiting rod, and a pull rod;

[0013] The lifting plate is provided with through slots for the connecting wire to pass through on both sides along its length direction;

[0014] The second limiting rod is passed through the middle of the through groove to guide the connecting line, the third limiting rod is arranged at both ends of the lifting plate along its length direction, and the third limiting rod is connected to the piston rod; the pull rod is arranged in the middle of the lifting plate to control the lifting plate to move up and down.

[0015] In some possible embodiments, the lifting plate is further provided with limiting holes at both ends along its length direction, and a fourth limiting rod for cooperating with the limiting holes to limit the lifting plate is installed at the upper end of one side of the cylinder.

[0016] In some possible embodiments, the cleaning tray includes a first cleaning block, a second cleaning block, and cleaning brushes disposed on the first cleaning block and the second cleaning block.

[0017] In some possible embodiments, an arc-shaped groove is formed inside the first cleaning block and the second cleaning block, and one end of the arc-shaped groove is connected to a plurality of blowing holes.

[0018] In some possible embodiments, a second connector is installed on one side of the first cleaning block, and a connecting hole for connecting the arc groove and the second connector is opened inside the first cleaning block.

[0019] The partial discharge detector of the present invention integrates a lifting component and a cleaning component to achieve automatic cleaning of the connecting wire during the extension and retraction process, which has the following significant advantages:

[0020] 1. Automatically clean the connecting wires to prevent dust accumulation. When the push-up assembly adjusts the extension or retraction of the connecting wires, the piston rod drives the piston to move in the cylinder, generating airflow that blows toward the surface of the connecting wires through the cleaning disc, effectively removing dust attached to the connecting wires and preventing dust from entering the detector.

[0021] 2. Reduce manual maintenance and improve ease of use. Traditional detectors require manual wiping of the connecting wires, while this embodiment automatically completes cleaning when the connecting wires are extended or retracted, reducing manual intervention and improving operational efficiency.

[0022] 3. Extend equipment life and ensure detection accuracy. Dust accumulation may cause poor connection of connecting cables or affect signal transmission. This solution ensures that the connecting cables are always clean through continuous cleaning, improving detection stability and accuracy.

[0023] 4. Compact structure, without affecting portability. The cleaning components (cylinder, piston, cleaning disc) are linked with the lifting components, eliminating the need for an additional power source. The overall structure is compact, without affecting the portability and storage performance of the detector.

[0024] 5. Prevent dust from contaminating the interior of the detector. In traditional structures, the retraction of the connecting wire may bring external dust into the detector. However, this embodiment simultaneously cleans the detector during the retraction process, preventing dust from contaminating internal components and reducing the failure rate.

[0025] In summary, the partial discharge detector of the embodiment of the utility model realizes the "extension and cleaning" of the connecting wire through mechanical linkage, effectively solving the problem of the connecting wire being easily contaminated by dust and internal dust accumulation in the prior art, improving the reliability, service life and detection accuracy of the detector, while maintaining the characteristics of compact structure and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic diagram of the overall structure of a partial discharge detector according to an embodiment of the present utility model;

[0028] Figure 2 This is a schematic structural diagram of the discharge detector body according to an embodiment of the present utility model;

[0029] Figure 3 This is a schematic structural diagram of a push-up assembly according to an embodiment of the present invention;

[0030] Figure 4 This is a schematic structural diagram of a cleaning component according to an embodiment of the present utility model;

[0031] Figure 5 This is a schematic structural diagram of a cleaning disc according to an embodiment of the present invention.

[0032] In the accompanying drawings, the names of the components represented by the reference numerals are listed as follows:

[0033] 100 - discharge detector body, 10 - connecting wire, 11 - first connector, 12 - plug, 110 - first chamber, 120 - second chamber, 121 - threaded sleeve, 122 - first limiting rod, 123 - partition;

[0034] 200-push assembly, 210-lifting plate, 211-through slot, 212-second limiting rod, 213-pull rod, 215-limiting hole, 216-third limiting rod;

[0035] 300-cleaning assembly, 310-cylinder, 311-threaded column, 312-air pipe, 313-fourth limiting rod, 320-piston, 321-piston rod, 330-cleaning disk, 331-first cleaning block, 332-second cleaning block, 334-second connecting head, 335-arc groove, 336-connecting hole, 337-blowing hole, 338-cleaning brush. DETAILED DESCRIPTION

[0036] To enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0037] Unless otherwise specifically stated, the technical terms or scientific terms used in the embodiments of the present utility model should be the ordinary meanings understood by those with general skills in the field to which the present utility model belongs. The use of "including" or "comprising" and the like in the embodiments of the present utility model neither limits the mentioned shapes, numbers, steps, actions, operations, components, elements and / or their groups, nor excludes the appearance or addition of one or more other different shapes, numbers, steps, actions, operations, components, elements and / or their groups, or the addition of these. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity and order of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0038] Unless otherwise specifically stated, the relative settings, numerical expressions and values of the components and steps described in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. For technologies, methods and devices known to those of ordinary skill in the relevant fields, they may not be discussed in detail, but in appropriate cases, the shown technologies, methods and devices should be regarded as part of the specification. In all the examples shown and discussed here, any specific other example may have different values. It should be noted that similar symbols and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0039] In the description of the embodiments of the present utility model, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In the embodiments of the present utility model, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in the embodiments of the present utility model and the features of different embodiments or examples.

[0040] Next, exemplary embodiments according to the present utility model will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments of the present utility model. It should be understood that the present utility model is not limited by the exemplary embodiments described herein.

[0041] Please refer to Figures 1 - 5 , the present utility model provides a partial discharge detector, including a discharge detector body 100. A connecting wire 10 is placed inside the discharge detector body 100. A first chamber 110 and a second chamber 120 are machined inside the discharge detector body 100, and the second chamber 120 is used for storing the connecting wire 10, and other parts such as headphones are stored in the first chamber 110. A first connector 11 is installed at one end of the connecting wire 10, and a plug 12 is installed at the other end of the connecting wire 10.

[0042] A lifting assembly 200 for controlling the use length of the connecting wire 10 is installed inside the discharge detector body 100. A cleaning assembly 300 for cleaning the connecting wire 10 is installed inside the discharge detector body 100, and two cleaning assemblies 300 are provided, which are respectively located on the left and right sides of the lifting assembly 200. The cleaning assembly 300 includes a cleaning disc 330 for dusting the surface of the connecting wire 10. The cleaning assembly 300 includes a cylinder 310 for delivering gas into the cleaning disc 330. A piston 320 for cooperating with the lifting assembly 200 to control the flow of gas is installed inside the cylinder 310, so that when the lifting assembly 200 moves, the gas blows away the dust on the surface of the connecting wire 10.

[0043] At the left and right ends of the bottom of the second chamber 120, there are fixedly installed thread sleeves 121 for limiting the cylinder barrel 310. In the middle of the second chamber 120, there is installed a first limiting rod 122 for guiding the connecting line 10. At the upper end of the second chamber 120, there is installed a partition plate 123. When the connecting line 10 is stored, the connecting line 10 is inside the partition plate 123. When there is dust on the partition plate 123, a rag can be used to wipe the dust on the partition plate 123.

[0044] The lifting assembly 200 includes a lifting plate 210. Through grooves 211 for the connecting line 10 to pass through are opened on both the left and right sides of the lifting plate 210. In the middle of the through groove 211, there is fixedly installed a second limiting rod 212 for guiding the connecting line 10. Through holes for the connecting line 10 to pass through are opened at both the left and right ends of the partition plate 123, so that the connecting line 10 enters the through groove 211 on the left side of the lifting plate 210 from the left through hole of the partition plate 123. Then the connecting line 10 turns upward from the right side of the cavity of the through groove 211 on the left side of the lifting plate 210, so that the connecting line 10 is at the upper end of the first limiting rod 122, and then turns into the through groove 211 on the right side of the lifting plate 210, and goes upward from the right side of the cavity of the through groove 211 on the right side of the lifting plate 210. Finally, it passes through the right through hole of the partition plate 123. When the lifting plate 210 moves upward, the connecting line 10 can be pulled, so as to facilitate the use of the connecting line 10. When the lifting plate 210 moves downward, the connecting line 10 is stored in the second chamber 120. Limiting holes 215 are opened at both the left and right ends of the lifting plate 210. Third limiting rods 216 are fixedly installed at both the left and right ends of the lifting plate 210. At the upper middle part of the lifting plate 210, there is installed a pull rod 213 for controlling the up and down movement of the lifting plate 210. By pulling the pull rod 213 up and down, the lifting plate 210 controls the up and down movement of the piston 320, so as to facilitate the gas to blow to the surface of the connecting line 10 through the cleaning disc 330.

[0045] At the lower end of the cylinder barrel 310, there is fixedly installed a threaded post 311 for cooperating with the thread sleeve 121 to limit the cylinder barrel 310. When installing the cylinder barrel 310, by rotating the cylinder barrel 310, the threaded post 311 is screwed into the thread sleeve 121, so that the cylinder barrel 310 is limited and the position of the cylinder barrel 310 is not likely to shift.

[0046] The lower end of the threaded post 311 is connected to an air pipe 312 that conveys gas into the cleaning tray 330. At the upper end of one side of the cylinder barrel 310, a fourth limiting rod 313 is fixedly installed for cooperating with the limiting hole 215 to limit the lifting plate 210. The fourth limiting rod 313 slides within the limiting hole 215. Through the limitation of the lifting plate 210 by the fourth limiting rod 313, the lifting plate 210 can only move up and down. At the upper end of the piston 320, a piston rod 321 is installed for cooperating with the third limiting rod 216 to control the movement of the piston 320. The third limiting rod 216 is fixedly installed at the top of the piston rod 321 through a bolt. When the lifting plate 210 moves up and down, the piston rod 321 is driven to move up and down synchronously, so that the piston 320 moves up and down synchronously inside the cylinder barrel 310.

[0047] The cleaning tray 330 includes a first cleaning block 331 and a second cleaning block 332. The first cleaning block 331 and the second cleaning block 332 are fixedly connected by bolts. The first cleaning block 331 is fixedly welded to the partition plate 123. When the connecting line 10 passes through the middle of the first cleaning block 331, the second cleaning block 332 is then fixed to one side of the first cleaning block 331 by bolts. The first cleaning block 331 and the second cleaning block 332 are symmetrically arranged. On one side of the first cleaning block 331, a second connector 334 is installed. The second connector 334 is used to connect with the air pipe 312 to facilitate the entry of gas into the first cleaning block 331. Arc-shaped grooves 335 are opened inside both the first cleaning block 331 and the second cleaning block 332. One end of the arc-shaped groove 335 is connected to a plurality of air blowing holes 337. On the upper ends of both the first cleaning block 331 and the second cleaning block 332, cleaning brushes 338 for cleaning the dust on the surface of the connecting line 10 are installed. The cleaning brushes 338 are arc-shaped plates, and bristles are installed on the inner wall of the arc-shaped plates. A connecting hole 336 for communicating the arc-shaped groove 335 and the second connector 334 is opened inside the first cleaning block 331.

[0048] When the pull rod 213 drives the lifting plate 210 to move upward, the third limiting rod 216 drives the piston rod 321 to move upward synchronously, so that the piston 320 moves to the upper end of the inner cavity of the cylinder barrel 310. After the connecting line 10 is used up, the pull rod 213 drives the lifting plate 210 to move downward. The connecting line 10 moves in the middle of the first cleaning block 331 and the second cleaning block 332. The bristles inside the cleaning brush 338 clean the surface of the connecting line 10. The third limiting rod 216 drives the piston rod 321 to move downward synchronously. The piston 320 pushes the gas at the lower end of the inner cavity of the cylinder barrel 310. When the gas is conveyed into the connecting hole 336 through the air pipe 312 and the second connector 334, the gas can be blown towards the connecting line 10 through the plurality of air blowing holes 337, and the dust on the bristles of the cleaning brush 338 is blown away, so that when the connecting line 10 is retracted into the second chamber 120 after each use, the connecting line 10 remains in a clean state.

[0049] The partial discharge detector of the present invention integrates a lifting component and a cleaning component to achieve automatic cleaning of the connecting wire during the extension and retraction process, which has the following significant advantages:

[0050] 1. Automatically clean the connecting wires to prevent dust accumulation. When the push-up assembly adjusts the extension or retraction of the connecting wires, the piston rod drives the piston to move in the cylinder, generating airflow that blows toward the surface of the connecting wires through the cleaning disc, effectively removing dust attached to the connecting wires and preventing dust from entering the detector.

[0051] 2. Reduce manual maintenance and improve ease of use. Traditional detectors require manual wiping of the connecting wires, while this embodiment automatically completes cleaning when the connecting wires are extended or retracted, reducing manual intervention and improving operational efficiency.

[0052] 3. Extend equipment life and ensure detection accuracy. Dust accumulation may cause poor connection of connecting cables or affect signal transmission. This solution ensures that the connecting cables are always clean through continuous cleaning, improving detection stability and accuracy.

[0053] 4. Compact structure, without affecting portability. The cleaning components (cylinder, piston, cleaning disc) are linked with the lifting components, eliminating the need for an additional power source. The overall structure is compact, without affecting the portability and storage performance of the detector.

[0054] 5. Prevent dust from contaminating the interior of the detector. In traditional structures, the retraction of the connecting wire may bring external dust into the detector. However, this embodiment simultaneously cleans the detector during the retraction process, preventing dust from contaminating internal components and reducing the failure rate.

[0055] In summary, the partial discharge detector of the embodiment of the utility model realizes the "extension and cleaning" of the connecting wire through mechanical linkage, effectively solving the problem of the connecting wire being easily contaminated by dust and internal dust accumulation in the prior art, improving the reliability, service life and detection accuracy of the detector, while maintaining the characteristics of compact structure and easy operation.

[0056] It is understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art may make various modifications and improvements without departing from the spirit and substance of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A partial discharge detector, characterized in that, include: A discharge detector body, a connecting wire that can be retracted and arranged in the discharge detector body, a lifting component arranged in the discharge detector body and used to control the retractable length of the connecting wire, and a cleaning component arranged in the discharge detector body and used to clean the connecting wire; wherein, The cleaning assembly includes a cleaning disk, a cylinder, a piston and a piston rod. The cleaning disk corresponds to the connecting line and is connected to the cylinder. The piston is slidably arranged in the cylinder. The first end of the piston rod is connected to the piston, and the second end of the piston rod is connected to the pushing assembly, so that the gas in the cylinder is blown toward the surface of the connecting line through the cleaning disk under the drive of the pushing assembly.

2. The partial discharge detector according to claim 1, wherein, A first chamber and a second chamber are provided inside the discharge detector body, and the connecting line and the cleaning component are provided in the second chamber.

3. The partial discharge detector according to claim 2, wherein A threaded sleeve is provided at the bottom of the second chamber, and a threaded column corresponding to the threaded sleeve is provided at the lower end of the cylinder. The lower end of the threaded column is connected to an air pipe for transporting gas into the cleaning disk, and the threaded column is inserted into the threaded sleeve to limit the cylinder.

4. The partial discharge detector according to claim 3, characterized in that, A first limiting rod for guiding the connecting line is provided in the middle of the second chamber, and a partition is provided at the upper end of the second chamber.

5. The partial discharge detector according to claim 4, characterized in that, A first connector is installed at one end of the connecting line, and a plug is installed at the other end of the connecting line. In addition, the first connector and the plug are both arranged on a side of the partition away from the threaded sleeve.

6. The partial discharge detector according to claim 5, characterized in that, The push-up assembly includes a lifting plate, a second limiting rod, a third limiting rod and a pull rod; The lifting plate is provided with through slots for the connecting wire to pass through on both sides along its length direction; The second limiting rod is passed through the middle of the through groove to guide the connecting line, the third limiting rod is arranged at both ends of the lifting plate along its length direction, and the third limiting rod is connected to the piston rod; the pull rod is arranged in the middle of the lifting plate to control the lifting plate to move up and down.

7. The partial discharge detector according to claim 6, characterized in that, The lifting plate is further provided with limiting holes at both ends along its length direction, and a fourth limiting rod for cooperating with the limiting holes to limit the lifting plate is installed on the upper end of one side of the cylinder.

8. A partial discharge detector according to any one of claims 1 to 7, characterized in that The cleaning tray includes a first cleaning block, a second cleaning block, and cleaning brushes arranged on the first cleaning block and the second cleaning block.

9. The partial discharge detector according to claim 8, characterized in that, An arc-shaped groove is provided inside the first cleaning block and the second cleaning block, and one end of the arc-shaped groove is connected to a plurality of blowing holes.

10. A partial discharge detector according to claim 9, characterized in that, A second connector is installed on one side of the first cleaning block, and a connecting hole for connecting the arc groove and the second connector is opened inside the first cleaning block.

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