Multifunctional partial discharge test shielding case

Abstract

The invention relates to the technical field of shielding cases, in particular to a multifunctional partial discharge test shielding case, which comprises a partial discharge test mechanism, a shielding case body, a power supply mechanism and a power supply mechanism, the two first square grooves are formed in the outer walls of the two sides of the shielding case body respectively; the square shell is fixed to the inner wall of one side of the shielding case body, two second square grooves are formed in the outer wall of the square shell at equal intervals, and a third square groove is formed in the position, below the center, of the outer wall of the square shell; and the conveying mechanism is fixed on the box body and can convey the lightning arrester to the optimal shielding area in the shielding case body. According to the lightning arrester clamping device, the double-shaft motor drives the threaded rod to rapidly rotate to be screwed with the first telescopic rod to adjust the clamping position, flexible adjustment can be conducted according to lightning arresters of different sizes, the compatibility of the device to the lightning arresters of different specifications is improved, and the problem that clamping and positioning are inaccurate due to size differences is solved.

Description

Technical Field

[0001] The invention relates to the technical field of shielding covers, and in particular to a multifunctional partial discharge test shielding cover. Background Art

[0002] In the safety guarantee system of the power system, the arrester is an indispensable key equipment. It can effectively limit overvoltage and protect other electrical equipment from damage caused by lightning strikes and overvoltage inside the system. With the continuous development of the power system and the continuous improvement of the requirements for power supply reliability, the performance and quality of the arrester are crucial. Among them, the partial discharge performance is one of the key indicators to measure the quality of the arrester. Before the new arrester products are put into use, it is a necessary step to conduct partial discharge tests on the entire batch of products to ensure that they meet the design and quality standards. This process can comprehensively detect whether there is partial discharge phenomenon in the arrester under normal working voltage, because even a small partial discharge may gradually develop during long-term operation, resulting in a decrease in the insulation performance of the arrester, and ultimately affecting its protection function.

[0003] The existing multifunctional partial discharge test shielding cover has some limitations in actual operation. When conducting partial discharge tests on lightning arresters, each time a lightning arrester is tested, it is necessary to manually open the shielding cover to remove and install the lightning arrester. This manual operation method is relatively slow when faced with large-scale test tasks. When a large number of lightning arresters need to be tested, such as full inspection or daily sampling of new products in enterprises that mass-produce lightning arresters, the time consumed by manual operation will greatly extend the entire test cycle. This not only affects the speed of product delivery and reduces production efficiency, but may also lead to product delivery delays, thereby affecting the company's market competitiveness. Summary of the invention

[0004] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide a multifunctional partial discharge test shielding cover, which is driven by a dual-axis motor to drive the threaded rod to rotate quickly and screw together with a telescopic rod to adjust the clamping position. It can be flexibly adjusted according to lightning arresters of different sizes, thereby improving the compatibility of the device with lightning arresters of different specifications, and reducing the installation difficulties and inaccurate positioning problems caused by size differences. Through the cooperation of square rod two and L-shaped frame one, rapid limiting of the lightning arrester is achieved. In batch tests, fast and accurate limiting operations can significantly shorten the preparation time of each lightning arrester and improve overall work efficiency.

[0005] A multifunctional partial discharge test shielding cover, comprising:

[0006] A partial discharge test mechanism comprises a box body, wherein a shielding cover body is fixedly connected to the top wall of the box body;

[0007] Two square grooves are provided, which are respectively opened on the outer walls of both sides of the shielding cover body;

[0008] A square shell is fixed to the inner wall of one side of the shielding cover body, the outer wall of the square shell is provided with two square grooves 2 at equal intervals, and the outer wall of the square shell is provided with a square groove 3 at the lower center;

[0009] The conveying mechanism is fixed on the box body and can convey the lightning arrester to the optimal shielding area inside the shielding cover body;

[0010] The closing mechanism is fixed inside the box and can open the square slot 1 to allow the arrester to enter the shielding cover body;

[0011] The automatic limit wiring mechanism is fixed inside the shielding cover body and can limit and connect the lightning arrester.

[0012] Further, the conveying mechanism comprises:

[0013] A plurality of arc-shaped frames are provided and fixed on the conveyor belt of the conveying mechanism at equal intervals, and a plurality of inclined grooves are opened at equal intervals on the outer walls of both sides of the arc-shaped frames;

[0014] The fourth square groove is arranged on the outer wall of one side of the arc-shaped frame and is located at the center.

[0015] Preferably: the closing mechanism comprises:

[0016] An electric push rod 1 is fixed to the inner wall of the box, and one end of the electric push rod 1 is fixedly connected to a square rod 1;

[0017] Two frames are provided and are respectively fixed on the outer walls at both ends of the square rod. One end of the frame is fixedly connected with a square plate. The outer wall of the square plate is slidably plugged into the inside of the square groove.

[0018] Preferably: the automatic limit wiring mechanism comprises:

[0019] An arc-shaped rod is fixed to the inner wall of the box, an L-shaped frame 1 is slidably inserted into the outer wall of the arc-shaped rod, and a spring is fixedly connected between the outer wall of the L-shaped frame 1 and the outer wall of the arc-shaped rod;

[0020] The second square plate is fixed to one end of the L-shaped frame, and the outer wall of one side of the second square plate is fixedly connected with a metal grid.

[0021] Preferably: the automatic limit wiring mechanism comprises:

[0022] A double-axis motor is fixed on the second square plate and located inside the metal grid, and both ends of the rotating shaft of the double-axis motor are fixedly connected with threaded rods;

[0023] The telescopic rod 1 is screwed onto the outer wall of the threaded rod.

[0024] Preferably: the automatic limit wiring mechanism comprises:

[0025] The second electric push rod is fixed on the second square plate and located inside the metal grid. One end of the second electric push rod is fixedly connected to a V-shaped frame, and the outer walls at both ends of the V-shaped frame are respectively fixed to the outer walls of one end of the two telescopic rods.

[0026] Preferably: the automatic limit wiring mechanism comprises:

[0027] An L-shaped frame 3 is fixed to the outer wall of the cannula of the telescopic rod 1, and one end of the L-shaped frame 3 is rotatably connected to the telescopic rod 3;

[0028] A round block is fixed to the third end of the telescopic rod;

[0029] The U-shaped frame is fixed to the outer wall of the V-shaped frame at the center. The outer wall at one end of the U-shaped frame is located on both sides and is rotatably connected to the telescopic rod 2. The outer wall at one end of the telescopic rod 2 is rotatably connected to the one end of the telescopic rod 3. The outer wall at the other end of the U-shaped frame is slidably plugged into the square groove 4.

[0030] Preferably: the automatic limit wiring mechanism comprises:

[0031] A slide rail is fixed on a telescopic rod and a slide rod, wherein an L-shaped frame 2 is slidably inserted inside the slide rail;

[0032] Square rod 2, fixed on the outer wall of L-shaped frame 2;

[0033] The sealing member is fixed between the inside of the slide rail and the two outer walls of the L-shaped frame.

[0034] Preferably: the automatic limit wiring mechanism comprises:

[0035] The alligator clip is fixed to one end of the telescopic rod, and one end of the alligator clip is rotatably connected to a round roller, which can prevent the arrester conductor from being damaged when connecting and unplugging the wires.

[0036] Preferably: the automatic limit wiring mechanism comprises:

[0037] The outer wall of the telescopic rod 1 is slidably plugged with the outer wall of the second square plate, the outer wall of the telescopic rod 1 is fixed with a metal grid at the second square plate, and is slidably plugged with the inside of the second square plate, the outer wall of the telescopic rod 1 is slidably plugged with the second square groove, the outer wall of the telescopic rod 1 is fixedly connected with a metal grid at the second square groove, and is slidably plugged with the inside of the second square groove;

[0038] The second outer wall of the electric push rod is slidably plugged into the third inner wall of the square groove; the second outer wall of the electric push rod is fixedly connected with a metal grid at the third position of the square groove and is slidably plugged into the inside of the third square groove.

[0039] Beneficial effects of the present invention:

[0040] 1. The arrester is quickly transported into the shielding cover body by the conveying mechanism. In the case of batch testing, compared with the method of manually opening the shielding cover body to put it in, the time for each arrester to enter the shielding cover is greatly saved. In batch testing, this time saving effect is more significant, and a large number of arresters can be put in place in a short time, thereby improving the efficiency of the entire partial discharge test, reducing the test cycle, and improving production efficiency.

[0041] 2. The threaded rod is driven by a dual-axis motor to quickly rotate and screw with the telescopic rod to adjust the clamping position. It can be flexibly adjusted according to lightning arresters of different sizes, which improves the compatibility of the device with lightning arresters of different specifications and reduces the installation difficulties and inaccurate positioning problems caused by size differences. The lightning arrester can be quickly limited by cooperating with the square rod 2 and the L-shaped frame 1. In batch tests, fast and accurate limiting operations can significantly shorten the preparation time of each lightning arrester and improve overall work efficiency.

[0042] 3. The automatic limit wiring mechanism can be used to adjust the position together with the lightning arrester, which can always ensure the wiring stability of the lightning arrester. The linkage design reduces the position deviation that may be caused by adjusting the lightning arrester and the clamping mechanism separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The present invention will be further described below in conjunction with the accompanying drawings.

[0044] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0045] Figure 2 It is a schematic diagram of the local structure of the conveying mechanism in the present invention;

[0046] Figure 3 It is a schematic diagram of the arc frame structure in the present invention;

[0047] Figure 4 It is a schematic diagram of the structure of the closing mechanism in the present invention;

[0048] Figure 5 It is a schematic diagram of the internal structure of the shielding cover body in the present invention;

[0049] Figure 6 It is a structural schematic diagram of the automatic limit wiring mechanism in the present invention;

[0050] Figure 7 It is a schematic diagram of the arc rod structure in the present invention;

[0051] Figure 8 This is a schematic diagram of the outer wall structure on one side of the middle plate 2 of the present invention;

[0052] Fig. 9 It is a partial structural schematic diagram of the automatic limit wiring mechanism in the present invention;

[0053] Fig.10 It is a schematic diagram of the alligator clip structure in the present invention.

[0054] In the figure: 100, partial discharge test mechanism; 110, box; 111, shielding cover body; 112, square slot 1; 113, square shell; 114, square slot 2; 115, square slot 3; 200, conveying mechanism; 210, arc frame; 211, inclined slot; 212, square slot 4; 300, closing mechanism; 310, electric push rod 1; 311, square rod 1; 312, frame; 313, square plate 1; 400, automatic limit wiring mechanism; 410, arc rod ; 411, L-shaped frame one; 412, spring; 413, square plate two; 420, double-axis motor; 421, threaded rod; 422, telescopic rod one; 423, slide rail; 424, seal; 425, L-shaped frame two; 426, square rod two; 427, L-shaped frame three; 430, electric push rod two; 431, V-shaped frame; 432, U-shaped frame; 433, telescopic rod two; 440, telescopic rod three; 441, round block; 450, crocodile clip; 451, round roller. DETAILED DESCRIPTION

[0055] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] See also Figure 1-10As shown, a multifunctional partial discharge test shielding cover includes a partial discharge test mechanism 100, which includes a box body 110 and the following parts: a shielding cover body 111 is fixedly connected to the top wall of the box body 110, and two square grooves 112 are provided, which are respectively opened at the outer walls of the two sides of the shielding cover body 111, and a square shell 113 is fixed to the inner wall of one side of the shielding cover body 111, and two square grooves 114 are opened at equal intervals on the outer wall of the square shell 113, and a square groove 3 115 is opened at the lower center of the outer wall of the square shell 113, and the conveying mechanism 200 is fixed on the box body 110, and can convey the lightning arrester to the best shielding area inside the shielding cover body 111, and the closing mechanism 300 is fixed inside the box body 110, and can open the square groove 112 to allow the lightning arrester to enter the shielding cover body 111, and the automatic limit wiring mechanism 400 is fixed inside the shielding cover body 111, and can limit and wire the lightning arrester The conveying mechanism 200 includes the following parts: a plurality of arc-shaped frames 210 are provided, which are fixed on the conveying belt of the conveying mechanism 200 at equal intervals, and a plurality of inclined grooves 211 are opened at equal intervals on the outer walls of both sides of the arc-shaped frame 210, and a square groove 212 is opened on the outer wall of one side of the arc-shaped frame 210 at the center. The closing mechanism 300 includes the following parts: an electric push rod 1 310 is fixed to the inner wall of the box body 110, and a square rod 1 311 is fixedly connected to one end of the electric push rod 1 310, and two frames 312 are provided, which are respectively fixed to the outer walls of the two ends of the square rod 1 311, and a square plate 1 313 is fixedly connected to one end of the frame 312, and the outer wall of the square plate 1 313 is slidably plugged into the inside of the square groove 112, and the lightning arrester is quickly conveyed to the shielding cover body 111 through the conveying mechanism 200. In the case of batch testing, compared with the method of manually opening the shielding cover body 111 to put it in, the time for each lightning arrester to enter the shielding cover is greatly saved.

[0057] The automatic limit wiring mechanism 400 includes the following parts: a dual-axis motor 420 is fixed on a square plate 413 and located inside the metal grid, threaded rods 421 are fixedly connected to the rotating shafts at both ends of the dual-axis motor 420, a telescopic rod 422 is screwed onto the outer wall of the threaded rod 421, and an electric push rod 430 is fixed on a square plate 413 and located inside the metal grid, a V-shaped frame 431 is fixedly connected to one end of the electric push rod 430, and the outer walls at both ends of the V-shaped frame 431 are respectively fixed to the outer walls of one end of the two telescopic rods 422, an L-shaped frame 427 is fixed to the outer wall of the insertion tube of the telescopic rod 422, a telescopic rod 440 is rotatably connected to one end of the L-shaped frame 427, a round block 441 is fixed to one end of the telescopic rod 440, and a U-shaped frame 432 is fixed to the outer wall of the V-shaped frame 431 at the center, and the outer wall of one end of the U-shaped frame 432 is rotatably connected to the telescopic rods 440 at both sides. The retractable rod 433 is rotatably connected to one end of the telescopic rod 433 and the telescopic rod 3 440 on the outer wall at one end. The slide rail 423 is fixed on the slide rod of the telescopic rod 1 422. An L-shaped frame 425 is slidably inserted inside the slide rail 423, and the square rod 426 is fixed on the outer wall of the L-shaped frame 2 425. The seal 424 is fixed between the inside of the slide rail 423 and the outer wall of the L-shaped frame 2 425. The crocodile clip 450 is fixed to one end of the telescopic rod 1 422. A round roller 451 is rotatably connected to one end of the crocodile clip 450, which can prevent damage to the conductor of the lightning arrester during wiring and unplugging. The threaded rod 421 is driven by the dual-axis motor 420 to quickly rotate and screw with the telescopic rod 1 422 to adjust the clamping position. It can be flexibly adjusted according to lightning arresters of different sizes, thereby improving the compatibility of the device with lightning arresters of different specifications and reducing the installation difficulties and inaccurate positioning problems caused by size differences.

[0058] The automatic limit wiring mechanism 400 includes the following parts: the arc rod 410 is fixed to the inner wall of the box body 110, an L-shaped frame 411 is slidably inserted on the outer wall of the arc rod 410, and a spring 412 is fixedly connected between the outer wall of the L-shaped frame 411 and the outer wall of the arc rod 410, the square plate 413 is fixed to one end of the L-shaped frame 411, a metal grid is fixedly connected to the outer wall of one side of the square plate 413, and the outer wall of the other end of the U-shaped frame 432 is slidably inserted with the square groove 4212, and the outer wall of the telescopic rod 422 is slidably inserted with the outer wall of the square plate 413, and a metal grid is fixed on the outer wall of the telescopic rod 422 at the square plate 413, and is connected with the square plate 413 It is slidably connected inside, and the outer wall of the telescopic rod 422 is slidably connected with the square groove 2 114. The outer wall of the telescopic rod 422 is located at the square groove 2 114 and is fixedly connected with a metal grid, and is slidably connected with the inside of the square groove 2 114. The outer wall of the electric push rod 430 is slidably connected with the inner wall of the square groove 3 115, and the outer wall of the electric push rod 430 is located at the square groove 3 115 and is fixedly connected with a metal grid, and is slidably connected with the inside of the square groove 3 115. The position can be adjusted together with the lightning arrester through the automatic limit wiring mechanism 400, which can always ensure the wiring stability of the lightning arrester. The linkage design reduces the position deviation that may be caused by adjusting the lightning arrester and the clamping mechanism separately.

[0059] Specifically, during operation, the personnel place the lightning arrester on the arc frame 210, the conveying mechanism 200 drives the lightning arrester to move into the shielding cover body 111, the electric push rod 1 310 drives the frame 312 to move upward, drives the square plate 1 313 to slide in the square groove 112, and the lightning arrester enters the shielding cover body 111 along the square groove 112, and moves to the center position, which is in the best shielding area, the dual-axis motor 420 drives the threaded rod 421 to rotate quickly and screw with the telescopic rod 1 422, and adjusts the clamping position according to the size of the lightning arrester. After the adjustment is completed, the electric push rod 2 430 drives one end of the telescopic rod 1 422 to extend outward, and the telescopic rod 3 440 is driven by the U-shaped frame 432 to rotate, so that the round block 44 1 sticks to the outer wall of one end of the lightning arrester. At the same time, the square rod 426 contacts one end of the lightning arrester. The square rod 426 is squeezed and slides along the inside of the slide rail 423, and cooperates with the round block 441 to limit the two ends of the lightning arrester. The electric push rod 430 continues to push until the two crocodile clips 450 are respectively in contact with the conductors at both ends of the lightning arrester. The crocodile clips 450 are squeezed to unfold and stick to the conductors. One crocodile clip 450 is connected to the high-voltage line, and the other crocodile clip 450 is connected to the grounding line. At this time, one end of the U-shaped frame 432 will be plugged into the corresponding square slot four 212. After the wiring is completed, the lightning arrester will be measured. After the measurement is completed, the automatic limit wiring mechanism 400 is driven back to the original state and separated from the lightning arrester, and the conveying mechanism 200 drives it out.

[0060] Embodiment 1

[0061] like Figure 1-4 As shown, in this embodiment, the conveying mechanism 200 includes the following parts: a plurality of arc-shaped frames 210 are provided, which are fixed on the conveyor belt of the conveying mechanism 200 at equal intervals, a plurality of inclined grooves 211 are evenly spaced on the outer walls on both sides of the arc-shaped frame 210, and a square groove 212 is opened on the outer wall of one side of the arc-shaped frame 210 at the center, and the closing mechanism 300 includes the following parts: an electric push rod 1 310 is fixed to the inner wall of the box body 110, a square rod 1 311 is fixedly connected to one end of the electric push rod 1 310, two frames 312 are provided, which are respectively fixed to the outer walls at both ends of the square rod 1 311, a square plate 1 313 is fixedly connected to one end of the frame 312, and the outer wall of the square plate 1 313 and the inside of the square groove 112 are slidably plugged.

[0062] In this embodiment, personnel place the lightning arrester on the arc frame 210, the conveying mechanism 200 drives the lightning arrester to move into the shielding cover body 111, the electric push rod 310 drives the frame 312 to move upward, drives the square plate 313 to slide in the square groove 112, and the lightning arrester enters the shielding cover body 111 along the square groove 112, and moves to the center position, which is in the best shielding area. The lightning arrester is quickly conveyed to the shielding cover body 111 by the conveying mechanism 200. In the case of batch testing, compared with the method of manually opening the shielding cover body 111 to put it in, the time for each lightning arrester to enter the shielding cover is greatly saved. In batch testing, this time saving effect is more significant, and a large number of lightning arresters can be put in place in a short time, thereby improving the efficiency of the entire partial discharge test. The test efficiency is improved, the test cycle is reduced, and the production efficiency is improved. When a larger lightning arrester exceeds the optimal shielding range, the position of the lightning arrester can be adjusted through the conveying mechanism 200. This function ensures that no matter how big or small the lightning arrester is, it can be adjusted to a suitable position in the shielding cover body 111 so that it is within the optimal shielding range, thereby ensuring that the shielding effect of each lightning arrester is consistent during the test and ensuring the reliability and comparability of the test data. In addition, a sealing strip is provided on the edge of the square plate 313 to make it close to the conveyor belt of the conveying mechanism 200, thereby ensuring the electromagnetic shielding integrity of the shielding cover body 111, so that during the test, a relatively pure electromagnetic environment can be maintained in the shielding cover body 111, effectively avoiding the influence of external interference on the partial discharge measurement results and improving the accuracy of the test results.

[0063] like Figure 8-10As shown, in this embodiment, the automatic limit wiring mechanism 400 includes the following parts: a dual-axis motor 420 is fixed on the second square plate 413 and located inside the metal grid, and the rotating shafts at both ends of the dual-axis motor 420 are fixedly connected with threaded rods 421, and the telescopic rod 1 422 is screwed on the outer wall of the threaded rod 421, and the electric push rod 2 430 is fixed on the second square plate 413 and located inside the metal grid, and a V-shaped frame 431 is fixedly connected at one end of the electric push rod 2 430, and the outer walls at both ends of the V-shaped frame 431 are respectively fixed to the outer walls of one end of the two telescopic rods 1 422, and the L-shaped frame 3 427 is fixed to the outer wall of the insertion tube of the telescopic rod 1 422, and the telescopic rod 3 440 is rotatably connected at one end of the L-shaped frame 3 427, and the round block 441 is fixed to the telescopic rod 440. One end of the retractable rod three 440, and the U-shaped frame 432 is fixed to the outer wall of the V-shaped frame 431 at the center, and the outer wall of one end of the U-shaped frame 432 is rotatably connected with the telescopic rod two 433 on both sides, and the outer wall of one end of the telescopic rod two 433 is rotatably connected with one end of the telescopic rod three 440, its slide rail 423 is fixed on the slide rod of the telescopic rod one 422, and an L-shaped frame two 425 is slidably inserted inside the slide rail 423, and the square rod two 426 is fixed on the outer wall of the L-shaped frame two 425, and the seal 424 is fixed between the inside of the slide rail 423 and the outer wall of the L-shaped frame two 425, and the crocodile clip 450 is fixed to one end of the telescopic rod one 422, and a round roller 451 is rotatably connected to one end of the crocodile clip 450, which can prevent damage to the arrester conductor during wiring and unplugging.

[0064] During specific implementation, the dual-axis motor 420 drives the threaded rod 421 to rotate rapidly and screw with the telescopic rod 1 422 to adjust the clamping position according to the size of the lightning arrester. After the adjustment is completed, the electric push rod 2 430 drives and drives one end of the telescopic rod 1 422 to extend outward, and the telescopic rod 3 440 is pushed by the U-shaped frame 432 to rotate, so that the round block 441 sticks to the outer wall of one end of the lightning arrester. At the same time, the square rod 2 426 contacts one end of the lightning arrester, and the square rod 2 426 is squeezed and slides along the inside of the slide rail 423, and cooperates with the round block 441 to limit the two ends of the lightning arrester. The electric push rod 2 430 continues to push until the two crocodile clips 450 are respectively in contact with the conductors at both ends of the lightning arrester, and the crocodile clips 450 are squeezed to expand and stick to the conductors. One crocodile clip 450 is connected to the high-voltage line, and the other crocodile clip 450 is connected to the grounding line. The dual-axis motor 420 drives the threaded rod 421 to rotate rapidly and screw with the telescopic rod 1 422 to adjust the clamping position The arrangement can be flexibly adjusted according to lightning arresters of different sizes, thereby improving the compatibility of the device with lightning arresters of different specifications and reducing the installation difficulties and inaccurate positioning problems caused by size differences. Through the cooperation of the square rod 426 and the L-shaped frame 411, the lightning arrester can be quickly limited. In batch tests, the fast and accurate limit operation can significantly shorten the preparation time of each lightning arrester and improve the overall work efficiency. The round block 441 can be made of silicone rubber material, which has excellent flexibility and resilience, and avoids damage to the lightning arrester when it is squeezed. The contact area between the square rod 426 and the L-shaped frame 411 and the lightning arrester is small, which will not affect the heat dissipation of the lightning arrester. In addition, the electric push rod 430 pushes the two crocodile clips 450 to contact the conductors at both ends of the lightning arrester respectively, and they are squeezed to expand and stick to the conductors to realize automatic wiring. In batch working mode, this automatic wiring function does not require manual intervention, which greatly improves the wiring speed.

[0065] Embodiment 2

[0066] like Figure 5-7As shown, the automatic limit wiring mechanism 400 includes the following parts: the arc rod 410 is fixed to the inner wall of the box body 110, an L-shaped frame 411 is slidably inserted on the outer wall of the arc rod 410, and a spring 412 is fixedly connected between the outer wall of the L-shaped frame 411 and the outer wall of the arc rod 410, the square plate 413 is fixed to one end of the L-shaped frame 411, a metal grid is fixedly connected to the outer wall of one side of the square plate 413, and the outer wall of the other end of the U-shaped frame 432 is slidably inserted into the square groove 4212, and the outer wall of the telescopic rod 422 is slidably connected to the outer wall of the square plate 413. Insertion, a metal grid is fixed on the outer wall of the telescopic rod 422 at the square plate 413, and is slidably inserted into the inside of the square plate 413, and is slidably inserted into the outer wall of the telescopic rod 422 and the square groove 114, the outer wall of the telescopic rod 422 is located at the square groove 114 and is fixedly connected with the metal grid, and is slidably inserted into the inside of the square groove 114, the outer wall of the electric push rod 430 is located at the square groove 115 and is slidably inserted into the inner wall of the square groove 3 115, and the outer wall of the electric push rod 430 is fixedly connected with the metal grid, and is slidably inserted into the inside of the square groove 3 115.

[0067] In specific implementation, when it is necessary to measure a lightning arrester of a larger size, since one end of the U-shaped frame 432 is plugged into the square groove 412, the automatic limit wiring mechanism 400 can be limited on the corresponding arc frame 210. When the conveying mechanism 200 drives the lightning arrester to adjust its position to the optimal shielding area, it will also drive the automatic limit wiring mechanism 400 to slide on the arc rod 410 to adjust the position. After the measurement, the automatic limit wiring mechanism 400 is separated from the corresponding arc frame 210 and is rebounded by the spring 412 to return to its original position. The automatic limit wiring mechanism 400 can be adjusted in position together with the lightning arrester, so that the wiring stability of the lightning arrester can be always guaranteed. The linkage design reduces the possibility of adjusting the lightning arrester and the clamping mechanism separately. position deviation. In addition, metal grids are slidably inserted in the square grooves 2 114 and 3 115 on the square shell 113 and in the slide grooves of the square plate 2 413, and metal grids are also wrapped at the dual-axis motor 420 and the electric push rod 2 430, which can effectively prevent the electromagnetic signals of the internal dual-axis motor 420 and the electric push rod 2 430 from leaking outward, play the role of electromagnetic shielding, protect the normal test of the lightning arrester, avoid electromagnetic interference from the dual-axis motor 420 and the electric push rod 2 430, and effectively improve the stability. The supporting components of the automatic limit wiring mechanism 400 can all be made of glass fiber reinforced epoxy resin material, which has high hardness and strength. Its excellent insulation performance can avoid affecting the electrical performance of the lightning arrester and ensure the accuracy of the test results.

[0068] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific characteristic structure materials or features described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific characteristic structure materials or features described can be combined in any one or more embodiments or examples in a suitable manner.

[0069] The above contents are merely examples and explanations of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the invention or exceed the scope defined by the claims, they shall all fall within the protection scope of the present invention.

Claims

1. A multifunctional partial discharge test shield, characterized in that: include: A partial discharge test mechanism (100) comprises a box body (110), wherein a shielding cover body (111) is fixedly connected to a top wall of the box body (110); Two square grooves (112) are provided and are respectively opened on the outer walls of both sides of the shielding cover body (111); The square shell (113) is fixed to the inner wall of one side of the shielding cover body (111), the outer wall of the square shell (113) is provided with two square grooves 2 (114) at equal intervals, and the outer wall of the square shell (113) is provided with a square groove 3 (115) at the lower center; A conveying mechanism (200) is fixed on the box body (110) and is capable of conveying the lightning arrester to an optimal shielding area inside the shielding cover body (111); The closing mechanism (300) is fixed inside the box body (110) and is capable of opening the square slot 1 (112) to allow the lightning arrester to enter the shielding cover body (111); The automatic position limiting wiring mechanism (400) is fixed inside the shielding cover body (111) and can limit the position of the lightning arrester and connect the wiring.

2. A multifunctional partial discharge test shield according to claim 1, characterized in that: The conveying mechanism (200) comprises: A plurality of arc-shaped frames (210) are provided and fixed on the conveyor belt of the conveying mechanism (200) at equal intervals, and a plurality of inclined grooves (211) are evenly spaced on the outer walls of both sides of the arc-shaped frames (210); The fourth square groove (212) is provided on the outer wall of one side of the arc-shaped frame (210) and is located at the center.

3. A multifunctional partial discharge test shield according to claim 2, characterized in that: The closing mechanism (300) comprises: An electric push rod (310) is fixed to the inner wall of the box (110), and one end of the electric push rod (310) is fixedly connected to a square rod (311); Two frames (312) are provided and are respectively fixed on the outer walls at both ends of the square rod (311). One end of the frame (312) is fixedly connected with a square plate (313). The outer wall of the square plate (313) is slidably plugged into the inside of the square groove (112).

4. A multifunctional partial discharge test shielding cover according to claim 3, characterized in that: The automatic limit wiring mechanism (400) comprises: The arc-shaped rod (410) is fixed to the inner wall of the box body (110); an L-shaped frame (411) is slidably inserted into the outer wall of the arc-shaped rod (410); a spring (412) is fixedly connected between the outer wall of the L-shaped frame (411) and the outer wall of the arc-shaped rod (410); The second square plate (413) is fixed to one end of the first L-shaped frame (411), and the outer wall of one side of the second square plate (413) is fixedly connected with a metal grid.

5. A multifunctional partial discharge test shielding cover according to claim 4, characterized in that: The automatic limit wiring mechanism (400) comprises: A double-axis motor (420) is fixed on the second square plate (413) and is located inside the metal grid. The rotating shafts at both ends of the double-axis motor (420) are fixedly connected to threaded rods (421); The telescopic rod (422) is screwed onto the outer wall of the threaded rod (421).

6. A multifunctional partial discharge test shielding cover according to claim 5, characterized in that: The automatic limit wiring mechanism (400) comprises: The second electric push rod (430) is fixed on the second square plate (413) and is located inside the metal grid. One end of the second electric push rod (430) is fixedly connected to a V-shaped frame (431). The outer walls at both ends of the V-shaped frame (431) are respectively fixed to the outer walls at one end of the two telescopic rods (422).

7. A multifunctional partial discharge test shielding cover according to claim 6, characterized in that: The automatic limit wiring mechanism (400) comprises: L-shaped frame three (427), fixed to the outer wall of the insertion tube of telescopic rod one (422), one end of the L-shaped frame three (427) is rotatably connected to telescopic rod three (440); A round block (441) is fixed to one end of the telescopic rod three (440); The U-shaped frame (432) is fixed to the outer wall of the V-shaped frame (431) at the center. The outer wall at one end of the U-shaped frame (432) is located at both sides and is rotatably connected to the second telescopic rod (433). The outer wall at one end of the second telescopic rod (433) is rotatably connected to one end of the third telescopic rod (440). The outer wall at the other end of the U-shaped frame (432) is slidably plugged into the fourth square groove (212).

8. The multifunctional partial discharge test shielding cover according to claim 7, characterized in that: The automatic limit wiring mechanism (400) comprises: The slide rail (423) is fixed on the slide rod of the telescopic rod (422), and the interior of the slide rail (423) is slidably plugged with the L-shaped frame (425); A second square rod (426) is fixed on the outer wall of the second L-shaped frame (425); The sealing member (424) is fixed between the inside of the slide rail (423) and the outer wall of the second L-shaped frame (425).

9. The multifunctional partial discharge test shielding cover according to claim 8, characterized in that: The automatic limit wiring mechanism (400) comprises: An alligator clip (450) is fixed to one end of a telescopic rod (422), and one end of the alligator clip (450) is rotatably connected to a round roller (451), which can prevent the arrester conductor from being damaged when connecting or disconnecting the wires.

10. The multifunctional partial discharge test shielding cover according to claim 9, characterized in that: The automatic limit wiring mechanism (400) comprises: The outer wall of the telescopic rod 1 (422) is slidably plugged into the outer wall of the square plate 2 (413); the outer wall of the telescopic rod 1 (422) is located at the square plate 2 (413) and is fixed with a metal grid, and is slidably plugged into the inside of the square plate 2 (413); the outer wall of the telescopic rod 1 (422) is slidably plugged into the square groove 2 (114); the outer wall of the telescopic rod 1 (422) is located at the square groove 2 (114) and is fixedly connected with a metal grid, and is slidably plugged into the inside of the square groove 2 (114); The outer wall of the second electric push rod (430) is slidably plugged into the inner wall of the third square groove (115); the outer wall of the second electric push rod (430) is fixedly connected with a metal grid at the third square groove (115) and is slidably plugged into the inside of the third square groove (115).

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