A grounding line collection device for partial discharge test

Abstract

The present invention provides a grounding line collection device for partial discharge testing, and specifically relates to the technical field of grounding devices, including a line collection box, a box cover hinged on the line collection box, and a line collection storage mechanism including a box body one fixedly connected to one side of the line collection box, a box body two fixedly connected to the side of the line collection box away from the box body one, and five shaft bodies one rotatably connected to the bottom surface inside the line collection box. When a user performs a grounding operation during a partial discharge test, the user can only pull the grounding end out of the box body one by pulling a movable frame before performing the grounding process, thereby standardizing the operation sequence of the user's grounding operation, thereby ensuring the safety of the grounding operation. After the partial discharge tester is tested, there is no need to manually reel in the grounding wire, and each grounding wire is pulled out and retracted individually by an independent line collection storage structure, thereby avoiding the situation where multiple grounding wires are scattered and tangled, thereby achieving the effect of efficiently and orderly collecting the grounding wires.

Description

Technical Field

[0001] The invention provides a grounding line collection device for partial discharge test, and particularly relates to the technical field of grounding devices. Background Art

[0002] The existing partial discharge tester consists of five parts: partial discharge meter, control box, isolation filter, transformer, and coupling capacitor. When in use, each part needs to be connected through a connecting wire, and each component equipment needs to be grounded to the ground grid through a ground wire to avoid leakage and electric shock during the test.

[0003] The invention patent with authorization announcement number CN115389876B discloses an integrated intelligent comprehensive tester and test method for spacing equipment. The tester is provided with a combing plate, which can synchronously drive the temperature test module, humidity test module and local discharge detection module to move by driving the connecting frame to move, and gradually move the temperature sensor, humidity sensor and local discharge detection sensor at the integrated spacing equipment to detect the surrounding environment of the integrated spacing equipment, and detect whether local discharge occurs in the integrated spacing equipment to detect the insulation of the spacing equipment. At the same time, the movement of the moving rod and the use of the tooth block can drive the gear to rotate, thereby controlling the rotation of the combing plate and adjusting the angle of the combing plate, thereby realizing the retraction and release of the connecting harness, ensuring the straight extension and storage of the connecting harness, avoiding bending and stacking of the connecting harness, increasing the service life of the connecting harness, and avoiding the risk of leakage due to damage of the connecting harness. In addition, the utility model with authorization announcement number CN218088416U discloses a substation grounding wire collection device that is convenient for operation and maintenance personnel to manage. The collection barrel can be supported by a ring plate, and the collection mechanism can make the collection process more time-saving and labor-saving. The device can be fixed to the ground more firmly by multiple fixing mechanisms to prevent the collection barrel from tipping over. The screw can be driven to rotate by a hand wheel, and the servo motor can be powered by a motor controller. The start and stop and rotation direction of the servo motor can be controlled by a control switch. It can be seen from the above two documents that it is necessary to deal with the problem of grounding wire harness retraction and extension during partial discharge detection operations and other electrical equipment grounding operations.

[0004] Although both of the above two documents can store grounding connection wires, there are still the following deficiencies in specific use: First, multiple devices need to be grounded in the existing partial discharge tester, so multiple grounding wires are required, and the above two documents cannot realize the separate use and storage of multiple grounding wires. If multiple grounding wires are grounded at the same time, there is a lack of independent storage and pull-out control structure. If the operator does not pull the wires properly, it is easy to cause cross-knotting between the grounding wires, thereby affecting the subsequent grounding wire collection and storage effect.

[0005] Therefore, the present invention proposes a grounding line collection device for partial discharge testing to make up for and improve the deficiencies of the prior art. Summary of the invention

[0006] In view of the defects existing in the prior art, the present invention provides a grounding line collection device for partial discharge testing, which can effectively solve the relevant technical problems raised by the background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The present invention discloses a grounding line collection device for partial discharge testing, comprising a line collection box, a box cover hinged on the line collection box, a line collection storage mechanism arranged inside the line collection box, the line collection storage mechanism comprising a box body one fixedly connected to one side of the line collection box, a box body two fixedly connected to the side of the line collection box away from the box body one, five shaft bodies one are rotatably connected to the bottom surface of the line collection box, shaft body two is also rotatably connected at a position of the bottom surface of the line collection box corresponding to the five shaft bodies one, a belt is connected to the shaft body two for transmission, the upper end of the shaft body one is fixedly connected to a line collection disk one, the upper end of the shaft body two is fixedly connected to a line collection disk two, the line collection disk one and the collection A grounding wire is wound together between the two wire reels, and one end of the grounding wire close to the first wire collection reel is fixedly connected to the grounding end, and one end of the grounding wire close to the second wire collection reel is fixedly connected to the connecting end, and one end of the shaft body two close to the bottom surface of the wire collection box is fixedly connected to a ratchet, and a horizontal bar is movably inserted at a position corresponding to the ratchet of the wire collection box, and one end of the horizontal bar close to the ratchet is fixedly connected to a pawl bar, and the pawl bar and the ratchet are meshed with each other, and one end of the horizontal bar away from the ratchet extends to the outside of the wire collection box, and a horizontal spring is fixedly connected between one end of the horizontal bar extending to the external wire collection box and the outer wall of the wire collection box, and a clockwork spring is connected to the rotationally connected portion between the second shaft body and the bottom surface inside the wire collection box.

[0009] Preferably, the box body one is plugged with a box cover one, the box body two is plugged with a box cover two, and the interior of the box body two is evenly and fixedly connected with five bracket plates.

[0010] Preferably, the first and second cable collection trays are made of transparent acrylic material.

[0011] Preferably, the grounding end is initially located in the first box body, the connecting end is initially located in the second box body, and the bottom surface of the connecting end is in contact with the upper surface of the bracket plate.

[0012] Preferably, one end of the clockwork spring is fixedly connected to the second outer wall of the shaft body, and the other end of the clockwork spring is fixedly connected to the inner bottom surface of the junction box.

[0013] Preferably, the notch is located beside the grounding end and the connecting end, and the notch is used for allowing the grounding wire to pass through.

[0014] Preferably, the box body 1 and the box body 2 are both provided with a wire pulling limiting mechanism, and the wire pulling limiting mechanism includes a movable frame movably plugged into the box body 1, and a total of five movable frames are provided, and the five movable frames correspond to five grounding terminals one by one, respectively, and one end of the five movable frames close to the grounding terminal is fixedly connected with a U-shaped bracket 1, and the U-shaped bracket 1 is located at the part where the grounding wire is connected to the grounding terminal, and the box body 1 is provided with a rectangular opening 1 at a position corresponding to the movable frame, and the rectangular opening 1 is located on a side of the movable frame away from the U-shaped bracket 1, and the box body 2 is provided with a rectangular opening 1 at a position corresponding to the connection end. Mouth 2, the rectangular mouth 2 is located on the side of box body 2 away from the junction box, the inner bottom surface of the box body 1 is rotatably connected with gear 1, the side of the movable frame close to gear 1 is fixedly connected with rack 1, the rack 1 and gear 1 are meshed with each other, a penetration bar is movably inserted on the part of the junction box close to gear 1, and five penetration bars are evenly arranged, one end of the penetration bar close to gear 1 is fixedly connected with rack 2, the rack 2 and gear 1 are meshed with each other, one end of the penetration bar close to the connecting end is fixedly connected with U-shaped support 2, and the U-shaped support 2 is located at the connecting part between the connecting end and the grounding wire.

[0015] Preferably, a stabilizing mechanism is provided at the bottom of the wiring collection box, and the stabilizing mechanism includes a T-shaped plate slidably connected to one side of the wiring collection box, the T-shaped plate is fixedly connected to a through bar, and the lower end of the T-shaped plate is fixedly connected to two racks three, and four piston cylinders are fixedly connected to the outer walls around the bottom of the wiring collection box, and the bottoms of the four piston cylinders are respectively fixedly connected to suction cups, and the suction cups and piston cylinders are connected to each other, and a grooved rod is connected to the center rotation inside the piston cylinder, and the grooved rod is slidably connected to a piston disk at one end close to the suction cup, and a straight groove is provided on the inner ring surface of the piston cylinder, and the side of the piston disk close to the straight groove is slidably connected to the straight groove, and the upper end of the grooved rod extends to the top of the piston cylinder, and the two grooved rods close to the two racks three extend to one end above the piston cylinder and are respectively fixedly connected to gear two, and the gear two and the two rack three are meshed with each other.

[0016] Preferably, a synchronous belt is connected to the two grooved rods on one side close to the rack three and the two grooved rods on the other side and are matched with pulleys.

[0017] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0018] The grounding wire collection device for partial discharge test does not need to manually reel in the grounding wire after the partial discharge tester has finished testing. Each grounding wire is pulled out and retracted individually by an independent wire collection and storage structure, thereby avoiding the situation where multiple grounding wires are scattered and tangled, thereby achieving the effect of efficiently and orderly collecting grounding wires.

[0019] The grounding terminal and the connecting terminal are respectively in the box body 1 and the box body 2 before use, and after being pulled out horizontally for connection and use, they can also be easily retracted into the box body 1 and the box body 2, avoiding the situation of untimely recycling. In this way, the grounding terminal and the connecting terminal are externally protected by the box body 1 and the box body 2, thereby ensuring the safety of the grounding terminal and the connecting terminal when not in use;

[0020] In addition, when the user is performing grounding work during partial discharge testing, the user can only pull the grounding terminal out of the box body by pulling the movable frame before performing grounding processing, so as to standardize the operation sequence of the user's grounding work and ensure the safety of the grounding work;

[0021] The negative pressure is generated at the bottom of the suction cup, so that the junction box is stably adsorbed and fixed on the indoor ground, thereby ensuring the stability of the junction box during use, avoiding the displacement of the junction box due to accidental touch by personnel, and causing the grounding wire, grounding terminal, and connection terminal to be accidentally pulled, thereby ensuring the stability and safety of each component equipment in the partial discharge tester after grounding;

[0022] When the partial discharge tester completes the test and retracts the ground wire, the suction cup can be automatically released from its adsorption state, making it easier for the user to take the junction box away for storage, thereby improving the convenience of using the junction box. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a main perspective structural diagram of the present invention;

[0024] Figure 2 It is a three-dimensional structural diagram of the present invention from another viewing angle;

[0025] Figure 3 A three-dimensional structural diagram of the relevant components of the junction box of the present invention in a partially cut-away state;

[0026] Figure 4 The three-dimensional structure display diagram of the cable collection tray 1 and the cable collection tray 2 of the present invention;

[0027] Figure 5 It is a partial three-dimensional structural diagram of the ratchet wheel and the related parts of the pawl bar of the present invention;

[0028] Figure 6 It is a partial three-dimensional structural diagram of the relevant components of the shaft body 1 and the shaft body 2 of the present invention;

[0029] Figure 7 It is a partial three-dimensional structural diagram of the relevant components inside the box body 1 and the box body 2 of the present invention;

[0030] Figure 8 It is a partial three-dimensional structural diagram of the relevant components at both ends of the penetration strip of the present invention;

[0031] Fig. 9 It is a partial three-dimensional structural diagram of the related parts of the U-shaped support 1 and the U-shaped support 2 of the present invention;

[0032] Fig.10 It is a partial three-dimensional structural diagram of the relevant components of the T-shaped plate of the present invention;

[0033] Fig.11 It is a partial three-dimensional structural diagram of the relevant parts of the piston cylinder of the present invention in a cut-away state.

[0034] The numbers in the figure represent:

[0035] 1. Junction box; 101. Notch; 11. Box cover;

[0036] Wire collection and storage mechanism: 21, box body 1; 2101, box cover 1; 22, box body 2; 2201, box cover 2; 2202, bracket plate; 23, shaft body 1; 231, shaft body 2; 24, belt; 25, wire collection disk 1; 26, wire collection disk 2; 27, grounding wire; 271, grounding terminal; 272, connecting terminal; 28, ratchet; 29, horizontal bar; 210, horizontal spring; 211, ratchet bar; 212, spring spring;

[0037] Wire-pulling limiting mechanism: 31, movable frame; 32, rectangular opening 1; 33, U-shaped support 1; 34, rack 1; 35, gear 1; 36, through-bar; 37, rack 2; 38, U-shaped support 2; 39, rectangular opening 2;

[0038] Stabilizing mechanism: 41, T-shaped plate; 42, rack three; 43, piston cylinder; 44, suction cup; 45, grooved rod; 46, piston plate; 461, straight groove; 47, gear two; 48, synchronous belt. DETAILED DESCRIPTION

[0039] The present invention will be further described below in conjunction with the embodiments.

[0040] Embodiment 1: Figures 1 to 9 As shown, a grounding line collection device for partial discharge test includes a line collection box 1, on which a box cover 11 is hinged. To ensure the stability of the partial discharge test, the grounding line collection device needs to be placed horizontally on the indoor floor, and the floor needs to be flat. A line collection storage mechanism is provided inside the line collection box 1;

[0041] The line collection and storage mechanism includes a box body 1 21 fixedly connected to one side of the line collection box 1, a box body 22 fixedly connected to the side of the line collection box 1 away from the box body 1 21, a box cover 1 2101 plugged into the box body 1 21, a box cover 2201 plugged into the box body 22, and five bracket plates 2202 evenly and fixedly connected inside the box body 22. Five shaft bodies 1 23 are rotatably connected to the bottom surface of the line collection box 1, and shaft bodies 2 231 are also rotatably connected at positions corresponding to the five shaft bodies 1 23 on the bottom surface of the line collection box 1. A belt 24 and a synchronous wheel are transmission-connected between shaft bodies 231 and shaft bodies 1 23. Specifically, shaft bodies 1 23 and shaft bodies 2 231 are transmission-connected to belts 24 through synchronous wheels to achieve transmission stability between the two.

[0042] The upper ends of the five shaft bodies 1 23 are fixedly connected with the cable collection disk 1 25, and the upper ends of the shaft bodies 2 231 are fixedly connected with the cable collection disk 2 26. A grounding wire 27 is wound between the cable collection disk 1 25 and the cable collection disk 2 26. The cable collection disk 1 25 and the cable collection disk 2 26 are made of transparent acrylic material, which is convenient for users to observe the condition of the grounding wire 27, so as to replace the grounding wire 27 later, that is, to wind the grounding wire 27 between the cable collection disk 1 25 and the cable collection disk 2 26. The cable collection disk 1 25 and the cable collection disk 2 26 have holes for the grounding wire 27 to pass through. The grounding wire 27 is located between the cable collection disk 1 25 and the cable collection disk 2 26, and is located above the two. One end of the grounding wire 27 near the cable collection disk 1 25 is fixedly connected to a grounding terminal 271, and one end of the grounding wire 27 near the cable collection disk 2 26 is fixedly connected to a connecting terminal 272. The grounding terminal 271 is used to connect to the ground grid, that is, grounding, and the connecting terminal 272 is used to connect to the test equipment. The grounding wire 27 and the grounding terminals 271 and connecting terminals 272 at both ends are a group, and there are no less than five groups in total. The grounding terminal 271 is initially located in the box body 1 21, specifically, the bottom surface of the grounding terminal 271 is in contact with the bottom surface of the inside of the box body 1 21. The connecting terminal 272 is initially located in the box body 22, and the bottom surface of the connecting terminal 272 is in contact with the upper surface of the bracket plate 2202. A ratchet 28 is fixedly connected to one end of the shaft body 231 close to the inner bottom surface of the junction box 1, and a horizontal bar 29 is movably inserted at a position of the junction box 1 corresponding to the ratchet 28. A pawl bar 211 is fixedly connected to one end of the horizontal bar 29 close to the ratchet 28. The pawl bar 211 is arc-shaped and is located on a side of the ratchet 28 close to the shaft body 1 23. The pawl bar 211 and the ratchet 28 are meshed with each other. Specifically, a pawl is provided at the position where the pawl bar 211 meshes with the ratchet 28. Initially, the pawl and the ratchet 28 are meshed with each other, and the ratchet 28 can rotate clockwise, and it will be restricted by the pawl when rotating counterclockwise. One end of the horizontal bar 29 away from the ratchet 28 extends to the outside of the junction box 1, and a horizontal spring 210 is fixedly connected between the end of the horizontal bar 29 extending to the outside of the junction box 1 and the outer wall of the junction box 1. A clockwork spring 212 is connected to the rotationally connected portion between the second shaft body 231 and the inner bottom surface of the junction box 1, and one end of the clockwork spring 212 is fixedly connected to the outer wall of the second shaft body 231, and the other end of the clockwork spring 212 is fixedly connected to the inner bottom surface of the junction box 1. The elastic force of the above-mentioned horizontal spring 210 is greater than the elastic force of the clockwork spring 212, that is, when the clockwork spring 212 is deformed under force, the elastic force of the clockwork spring 212 will not cause the horizontal spring 210 to undergo elastic deformation, so that the horizontal bar 29 and the ratchet bar 211 will not be displaced.

[0043] Note: The existing partial discharge tester consists of five parts: partial discharge instrument, control box, isolation filter, transformer, and coupling capacitor. In this embodiment, there are five sets of grounding wires 27, grounding terminals 271, and connecting terminals 272, which respectively correspond to the grounding of the five components in the partial discharge tester.

[0044] Furthermore, if Figure 1 , Figure 2 , Figure 3 As shown, the junction box 1 is evenly provided with notches 101, which are located beside the grounding terminal 271 and the connecting terminal 272. The notch 101 is used for the grounding wire 27 to pass through. When the user needs to place the grounding wire 27, the grounding wire 27 is first wound between the junction box 1 25 and the junction box 2 26, and then the grounding terminal 271 and the connecting terminal 272 are respectively placed in the box body 1 21 and the box body 2 22 for subsequent use.

[0045] Furthermore, if Figures 7 to 9 As shown, the box body 1 21 and the box body 2 22 are provided with a wire-pulling restriction mechanism, and there are five groups of wire-pulling restriction mechanisms, and each group of wire-pulling restriction mechanisms corresponds to each set of grounding wires 27, grounding terminals 271 and connecting terminals 272. The wire-pulling restriction mechanism includes a movable frame 31 movably plugged into the box body 1 21, and there are five movable frames 31 in total. The five movable frames 31 correspond to the five grounding terminals 271 one by one, and one end of the five movable frames 31 close to the grounding terminals 271 is fixedly connected with a U-shaped bracket 1 33, and the U-shaped bracket 1 33 is located at the part where the grounding wire 27 is connected to the grounding terminal 271. A rectangular opening 1 32 is opened at the position of the box body 1 21 corresponding to the movable frame 31, and the rectangular opening 1 32 allows the grounding terminal 271 to pass horizontally. Rectangular opening 1 32 is located on the side of box body 1 21 away from U-shaped support 1 33. Rectangular opening 2 39 is provided at the position of box body 2 22 corresponding to connection end 272. Rectangular opening 2 39 is located on the side of box body 2 22 away from wire collection box 1. Rectangular opening 2 39 allows connection end 272 to pass horizontally. Gear 1 35 is rotatably connected to the bottom surface of box body 1 21. Rack 1 34 is fixedly connected to the side of movable frame 31 close to gear 1 35. Rack 1 34 and gear 1 35 are meshed with each other. Penetration strip 36 is movably inserted at the part close to wire collection box 1 and gear 1 35. There are five penetration strips 36 in total. The penetration strips 36 can be horizontally displaced on wire collection box 1. Rack 2 37 is fixedly connected to the end of penetration strip 36 close to gear 1 35. Rack 2 37 passes through box body 1 21 and can be horizontally displaced on box body 1 21. The second rack 37 is meshed with the first gear 35 , and one end of the through bar 36 close to the connection end 272 is fixedly connected with the second U-shaped bracket 38 , which is located at the connection portion between the connection end 272 and the grounding wire 27 .

[0046] During use: When the user needs to perform a partial discharge test, the user holds the junction box 1 and places it horizontally in the indoor venue to be used, so that the side of the junction box 1 close to the movable frame 31 is close to the grounding connection in the indoor venue. At this time, since the connection terminal 272 is located in the box body 22, the box cover 2201 above the box body 22 will prevent the user from directly touching the connection terminal 272 with his hands. This setting is to comply with existing grounding operation specifications and grounding processing is required first. When the user performs grounding, he can pull the movable frame 31 by hand so that the U-shaped support 1 33 drives the grounding terminal 271 to move horizontally away from the junction box 1 until the grounding terminal 271 horizontally passes through the rectangular opening 1 32 and moves to the outside of the box body 1 21. Then the user takes out the grounding terminal 271 and releases the movable frame 31, and then holds the grounding terminal 271 and pulls it outward until the grounding terminal 271 is connected to the grounding connection in the venue. When the grounding terminal 271 is pulled out, the grounding wire 27 wound on the cable collection disk 1 25 will be released, driving the cable collection disk 1 25 to rotate clockwise, and then driving the shaft body 231 and the cable collection disk 2 26 to rotate synchronously through the belt 24. At the same time, when the movable frame 31 moves horizontally outward in the direction away from the cable collection box 1, it will also drive the rack 1 34 to move synchronously, causing the gear 1 35 to rotate, and then the gear 1 35 will drive the rack 2 37 and the through-bar 36 to move horizontally in the direction of the box body 2 22, thereby driving the U-shaped support 2 38 to move synchronously through the through-bar 36, and then driving the connecting end 272 along the trajectory of the U-shaped support 2 38 through the U-shaped support 2 38, and horizontally moving in the direction close to the rectangular opening 2 39, and finally moving the connecting end 272 out of the box body 2 22. In this way, the user can perform grounding operations on each grounding terminal 271 and connecting end 272 in turn. Therefore, the grounding terminal 271 and the connecting terminal 272 are placed in the box body 1 21 and the box body 2 22 respectively in advance. When the user performs the grounding operation before the partial discharge test, the user can only pull the grounding terminal 271 out of the box body 1 21 by pulling the movable frame 31 before the grounding process can be performed. This standardizes the operation sequence of the user's grounding operation, thereby ensuring the safety of the grounding operation.

[0047] When a connection end 272 is horizontally moved out from the box body 22, the user can hold the connection end 272 and connect it to the grounding connection part of one of the devices in the partial discharge tester. During this process, as the connection end 272 is pulled out, the grounding wire 27 wound between the cable collection disk 1 25 and the cable collection disk 2 26 will be gradually released. In the process, the cable collection disk 2 26 and the shaft body 2 231 will be driven to rotate clockwise, and the ratchet 28 will also be rotated during the rotation of the shaft body 231. At the same time, as the shaft body 231 rotates, the clockwork spring 212 will be forced to undergo elastic deformation. In the process of the ratchet 28 rotating clockwise, under the action of the pawl bar 211, the horizontal bar 29 and the horizontal spring 210, the ratchet 28 is restricted from rotating counterclockwise. That is, at this time, the elastic restoring force of the clockwork spring 212 cannot drive the shaft body 231 to rotate in the opposite direction, so that the grounding wire 27 will not be retracted into the cable collection box 1 after being pulled out, which is convenient for user operation. According to this operation, the connection terminal 272 can be connected to other devices in the partial discharge tester one by one.

[0048] When the local discharge test is completed and the grounding wire 27, the connection terminal 272 and the grounding terminal 271 need to be retracted, the user first disconnects the connection terminal 272 from the equipment in the local discharge test, and then disconnects the grounding terminal 271 from the grounding connection in the field. Then push the horizontal bar 29 horizontally by hand to make it move horizontally in the direction close to the junction box 1. During the process, the horizontal spring 210 is compressed, and then with the horizontal displacement of the horizontal bar 29, the pawl bar 211 will be synchronously displaced, so that the pawl on the pawl bar 211 does not mesh with the teeth on the ratchet 28. At this time, the ratchet 28 is not restricted, and then under the elastic restoring force of the spring spring 212, the shaft body 231 and the ratchet 28 are driven to rotate in the opposite direction at the same time, thereby driving the junction disk 26 to rotate in the opposite direction synchronously, and then the pulled grounding wire 27 is automatically retracted into the junction disk 26, and the connection terminal 272 will be retracted into the box body 22. As shaft body 231 rotates in the opposite direction, shaft body 1 23 will also be driven to rotate synchronously through belt 24, thereby driving collection disk 1 25 to rotate, and then driving the grounding wire 27 released from collection disk 1 25 to be retracted, and at the same time, the grounding end 271 will be retracted into box body 1 21. In the process of retracting the grounding end 271 into box body 1 21, the grounding end 271 will push U-shaped support 1 33, movable frame 31, and rack 1 34 to move horizontally in the opposite direction, that is, move horizontally in the direction close to collection box 1, thereby driving gear 1 35 to rotate in the opposite direction, and then the reverse rotation of gear 1 35 drives rack 2 37, through bar 36, and U-shaped support 2 38 to move horizontally in the opposite direction at the same time. In this way, after the connecting end 272 is retracted into box body 22, the grounding end 271 will also be retracted into box body 1 21. Therefore, when the local discharge tester has completed the test and needs to retract the grounding wire 27, it is only necessary to manually push the horizontal bar 29. With the cooperation of components such as the clockwork spring 212, the pulled-out grounding wire 27 can be automatically retracted and thus retracted into the junction box 1. No manual reeling is required during the process, and since each grounding wire 27 is pulled out and retracted individually by an independent junction storage structure, the situation in which multiple grounding wires 27 are scattered and tangled can be avoided, thereby achieving the effect of efficiently and orderly collecting the grounding wires 27.

[0049] In addition, the grounding terminal 271 and the connecting terminal 272 are located inside the box body 1 21 and the box body 2 22 before use, and after being pulled out horizontally for connection and use, they are also retracted into the box body 1 21 and the box body 2 22, thereby avoiding the situation of untimely recycling. In this way, the grounding terminal 271 and the connecting terminal 272 are externally protected by the box body 1 21 and the box body 2 22, thereby ensuring the safety of the grounding terminal 271 and the connecting terminal 272 when not in use.

[0050] Embodiment 2: Fig.10 , Fig.11As shown, the grounding collection device for partial discharge test also includes a stabilizing mechanism, which is arranged below the collection box 1. The stabilizing mechanism includes a T-shaped plate 41 slidably connected to one side of the collection box 1, one end of the T-shaped plate 41 is located in the collection box 1, and the end located in the collection box 1 is fixedly connected to a through-bar 36 at the outermost edge. Two racks 42 are fixedly connected to the lower end of the T-shaped plate 41, and four piston cylinders 43 are fixedly connected to the outer walls around the bottom of the junction box 1. The bottoms of the four piston cylinders 43 are respectively fixedly connected to suction cups 44, and the suction cups 44 are connected to the piston cylinders 43. The inner center of the piston cylinder 43 is rotatably connected to a grooved rod 45, and the end of the grooved rod 45 close to the suction cup 44 is slidably connected to a piston disk 46. Specifically, a spiral groove is provided on the outer ring surface of the grooved rod 45, and a hemispherical block that slides with the spiral groove is fixedly provided on the side of the piston disk 46 close to the spiral groove, and a sealing gasket is provided at the connection between the piston disk 46 and the grooved rod 45, and a straight groove 461 is provided on the inner ring surface of the piston cylinder 43, and the side of the piston disk 46 close to the straight groove 461 is slidably connected to the straight groove 461, and the piston disk 46 can slide up and down along the straight groove 461. The upper end of the grooved rod 45 extends to the top of the piston cylinder 43, and the two grooved rods 45 extending to the top of the piston cylinder 43 near the two rack three 42 are respectively fixedly connected with gear two 47 at one end, and the gear two 47 is meshed with the two rack three 42. The two grooved rods 45 near one side of the rack three 42 and the two grooved rods 45 on the other side are connected by two synchronous belts 48 and are matched with pulleys. Specifically, the parts where the grooved rod 45 is connected to the two synchronous belts 48 are provided with synchronous wheels to ensure the stability of the rotation of the grooved rod 45 driven by the synchronous belt 48, and two through grooves are provided on the junction box 1 for the two synchronous belts 48 to pass through.

[0051] When in use: When the user places the junction box 1 horizontally in an indoor venue, in the above-mentioned embodiment 1, the user pulls the movable frame 31 to drive the grounding terminal 271 to move horizontally out of the box body 1 21, and drives the through bar 36 to move horizontally toward the direction close to the box body 22, and also drives the T-shaped plate 41 and the rack three 42 to move synchronously, thereby driving the two gears 2 47 to rotate synchronously through the rack three 42, and then driving the two grooved rods 45 to rotate synchronously with the rotation of the gear 2 47, and as the grooved rod 45 rotates, it will be The two grooved rods 45 on one side away from the T-shaped plate 41 are driven to rotate synchronously by the synchronous belt 48, so that the synchronous rotation of the four grooved rods 45 is realized. After the four grooved rods 45 rotate synchronously, the piston plate 46 will be driven to gradually move upward along the trajectory of the straight groove 461 under the extrusion cooperation of the spiral groove and the hemispherical block, so that the air between the suction cup 44 and the indoor venue floor is sucked into the piston cylinder 43. At this time, negative pressure is often generated between the suction cup 44 and the venue floor, so that the suction cup 44 is firmly adsorbed on the venue floor. Therefore, when the user pulls out a grounding terminal 271, the rack three 42, the piston cylinder 43, the suction cup 44 and other components cooperate to generate negative pressure at the bottom of the suction cup 44, so that the junction box 1 is stably adsorbed and fixed on the ground of the indoor venue, thereby ensuring the stability of the junction box 1 during use, avoiding displacement of the junction box 1 due to accidental touch by people, and causing the grounding wire 27, the grounding terminal 271, and the connecting terminal 272 to be accidentally pulled, thereby ensuring the stability and safety of each component equipment in the partial discharge tester after grounding.

[0052] When the grounding terminal 271 and the connecting terminal 272 are retracted, as the through bar 36 is horizontally displaced in the reverse direction and reset, the T-shaped plate 41 and the rack 3 42 will be synchronously reset in the reverse direction, and the grooved rod 45 will be rotated in the reverse direction, so that the piston plate 46 moves down and resets along the track of the straight groove 461, so that the air drawn into the piston cylinder 43 enters the suction cup 44, so that the suction cup 44 no longer generates negative pressure, that is, the suction cup 44 is not adsorbed to the ground of the indoor venue. Therefore, when the partial discharge tester is completed and the grounding wire 27 is retracted, the suction state of the suction cup 44 can be automatically released, so that the user can take away the junction box 1 for storage, thereby improving the convenience of using the junction device.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A grounding line collection device for partial discharge testing, comprising a line collection box (1), characterized in that: The line collection box (1) is hingedly provided with a box cover (11), and a line collection storage mechanism is provided inside the line collection box (1); The line collection and storage mechanism comprises a box body 1 (21) fixedly connected to one side of a line collection box (1); a box body 2 (22) is fixedly connected to a side of the line collection box (1) away from the box body 1 (21); the bottom surface of the line collection box (1) is rotatably connected to five shaft bodies 1 (23); a shaft body 2 (231) is also rotatably connected to a position of the bottom surface of the line collection box (1) corresponding to the five shaft bodies 1 (23); a belt (24) is transmission-connected between the shaft body 2 (231) and the shaft body 1 (23); the upper end of the shaft body 1 (23) is fixedly connected to a line collection disk 1 (25); the upper end of the shaft body 2 (231) is fixedly connected to a line collection disk 2 (26); a grounding wire (27) is wound between the line collection disk 1 (25) and the line collection disk 2 (26); the end of the grounding wire (27) close to the line collection disk 1 (25) is fixedly connected to a grounding terminal (271), one end of the grounding wire (27) close to the second wiring disk (26) is fixedly connected to a connection end (272), one end of the second shaft (231) close to the bottom surface of the wiring box (1) is fixedly connected to a ratchet (28), a horizontal bar (29) is movably inserted at a position corresponding to the ratchet (28) of the wiring box (1), one end of the horizontal bar (29) close to the ratchet (28) is fixedly connected to a pawl bar (211), the pawl bar (211) and the ratchet (28) are meshed with each other, one end of the horizontal bar (29) away from the ratchet (28) extends to the outside of the wiring box (1), one end of the horizontal bar (29) extending to the outside of the wiring box (1) is fixedly connected to a horizontal spring (210) between the outer wall of the wiring box (1), and the rotationally connected portion between the second shaft (231) and the bottom surface inside the wiring box (1) is connected to a clockwork spring (212).

2. The grounding line concentrator for partial discharge testing according to claim 1, characterized in that: The box body one (21) is plugged with a box cover one (2101), the box body two (22) is plugged with a box cover two (2201), and the interior of the box body two (22) is evenly and fixedly connected with five bracket plates (2202).

3. The grounding line concentrator for partial discharge testing according to claim 1, characterized in that: The first cable tray (25) and the second cable tray (26) are made of transparent acrylic material.

4. The grounding line concentrator for partial discharge testing according to claim 2, characterized in that: The grounding end (271) is initially located in the first box body (21), the connecting end (272) is initially located in the second box body (22), and the bottom surface of the connecting end (272) is in contact with the upper surface of the bracket plate (2202).

5. The grounding line concentrator for partial discharge testing according to claim 1, characterized in that: One end of the spring (212) is fixedly connected to the outer wall of the second shaft body (231), and the other end of the spring (212) is fixedly connected to the inner bottom surface of the junction box (1).

6. The grounding line concentrator for partial discharge testing according to claim 1, characterized in that: The junction box (1) is evenly provided with notches (101), the notches (101) being located beside the grounding end (271) and the connecting end (272), and the notches (101) are used for the grounding wire (27) to pass through.

7. The grounding line concentrator for partial discharge testing according to claim 1, characterized in that: The box body 1 (21) and the box body 2 (22) are both provided with a wire-pulling restriction mechanism, the wire-pulling restriction mechanism comprising a movable frame (31) movably plugged into the box body 1 (21), a total of five movable frames (31) being provided, the five movable frames (31) corresponding to the five grounding terminals (271) respectively, one end of the five movable frames (31) close to the grounding terminal (271) being fixedly connected with a U-shaped bracket 1 (33), the U-shaped bracket 1 (33) being located at a portion where the grounding wire (27) and the grounding terminal (271) are connected, a rectangular opening 1 (32) is provided at a position of the box body 1 (21) corresponding to the movable frame (31), the rectangular opening 1 (32) being located at a side of the movable frame (31) away from the U-shaped bracket 1 (33), a rectangular opening 2 (39) is provided at a position of the box body 2 (22) corresponding to the connection terminal (272), the rectangular opening 1 (39) being located at a side of the movable frame (31) away from the U-shaped bracket 1 (33), and a rectangular opening 2 (39) is provided at a position of the box body 2 (22) corresponding to the connection terminal (272). Mouth 2 (39) is located on the side of box body 2 (22) away from the junction box (1); the bottom surface of the inner part of box body 1 (21) is rotatably connected to gear 1 (35); the side of the movable frame (31) close to gear 1 (35) is fixedly connected to rack 1 (34); the rack 1 (34) and gear 1 (35) are meshed with each other; a through bar (36) is movably inserted at a portion of the junction box (1) close to gear 1 (35); five through bars (36) are evenly arranged; one end of the through bar (36) close to gear 1 (35) is fixedly connected to rack 2 (37); the rack 2 (37) and gear 1 (35) are meshed with each other; one end of the through bar (36) close to the connection end (272) is fixedly connected to U-shaped support 2 (38); the U-shaped support 2 (38) is located at the connection portion between the connection end (272) and the grounding wire (27).

8. The grounding line concentrator for partial discharge testing according to claim 7, characterized in that: A stabilizing mechanism is provided below the junction box (1), and the stabilizing mechanism comprises a T-shaped plate (41) slidably connected to one side of the junction box (1), the T-shaped plate (41) being fixedly connected to a through bar (36), the lower end of the T-shaped plate (41) being fixedly connected to two racks (42), four piston cylinders (43) being fixedly connected to the outer walls around the bottom of the junction box (1), the bottoms of the four piston cylinders (43) being fixedly connected to suction cups (44), the suction cups (44) being connected to the piston cylinders (43), and the inner center of the piston cylinder (43) being rotatably connected to a grooved rod (4 5), one end of the grooved rod (45) close to the suction cup (44) is slidably connected to a piston disc (46), a straight groove (461) is provided on the inner ring surface of the piston cylinder (43), and one side of the piston disc (46) close to the straight groove (461) is slidably connected to the straight groove (461), the upper end of the grooved rod (45) extends to the top of the piston cylinder (43), and the two grooved rods (45) close to the two racks (42) extend to the top of the piston cylinder (43) and are respectively fixedly connected to gears (47), and the gears (47) and the two racks (42) are meshed with each other.

9. The grounding line concentrator for partial discharge testing according to claim 8, characterized in that: A synchronous belt (48) is connected between the two grooved rods (45) on one side close to the rack three (42) and the two grooved rods (45) on the other side and is matched with a pulley.

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