Indoor totally-closed pillar type current transformer

Abstract

The invention discloses an indoor totally-closed pillar-type current transformer, which belongs to the technical field of current transformers and comprises an insulator, a high-voltage primary winding wiring terminal is arranged on the top wall of the insulator, a low-voltage secondary winding plug is arranged on the side wall of the insulator, umbrella skirts are uniformly arranged on the insulator, and the umbrella skirts are connected with the insulator. A cleaning assembly is arranged on the insulator; the cleaning assembly comprises a sliding rail fixedly installed on the side wall of the insulator, an installation frame attached to the insulator is installed on the sliding rail in a sliding mode, and an installation rod is rotatably installed on the installation frame. According to the scheme, by arranging the containing box, cleaning bristles can be separated from the outside, so that the situation that external stains adhere to the surfaces of the cleaning bristles, the cleaning effect is affected, and the pollution grade is lowered is effectively prevented, and by arranging a control rod, a user can conveniently fix the cleaning bristles in the containing box through a mounting rod and a cleaning rod; and therefore, the cleaning bristles can be conveniently fixed in the placement box, and the effect of prolonging the service life of the mutual inductor is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of current transformers, and more particularly to an indoor fully enclosed pillar-type current transformer. Background Art

[0002] Pillar type current transformer (indoor) is a widely used type of transformer. It is connected in series in the measurement and protection lines to support the conductor being measured. Various sizes and models can meet the installation requirements of different cabinet types. It has a fully enclosed structure and is cast in epoxy resin. It has excellent insulation and moisture-proof properties and is suitable for indoor environments. From the perspective of working principle, it transfers electrical quantities through electromagnetic induction; and based on the transformation ratio of the primary and secondary sides, the large current on the primary side of the power system is converted into a small current used by the secondary equipment.

[0003] The fully enclosed multi-winding current transformers used in the existing power system have a low pollution level. During the use of the current transformer, stains will fall onto the surface of the shed and the gap between the sheds, which will reduce the pollution level of the current transformer, resulting in a decrease in insulation performance and an increase in the risk of flashover of electrical equipment in a humid environment, seriously affecting the normal operation and service life of the equipment.

[0004] In view of the above problems, some solutions have been provided in the prior art. For example, the Chinese utility model patent with announcement number CN214203434U discloses an indoor pillar-type high-voltage current transformer. The device uses a sliding cleaning rod to arrange sponge brush heads on one side of the cleaning rod for cleaning. The shed and creepage spacing grooves are spaced apart to effectively remove dirt in the shed and creepage spacing grooves, maintain the dirt level, and extend the service life of the product. However, if the existing cleaning device is disassembled before and after cleaning, the cleaning work will become cumbersome and the cleaning efficiency will be seriously affected. If the cleaning device is not disassembled, the cleaning device will be exposed to the outside world for a long time, and then the external stains will fall onto the surface of the cleaning device, which will seriously affect the cleaning effect. Summary of the invention

[0005] In view of the problems existing in the prior art, the object of the present invention is to provide an indoor fully enclosed pillar-type current transformer, which can improve the cleaning effect of the shed, thereby extending the service life of the transformer.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] An indoor fully enclosed pillar-type current transformer comprises an insulator, a high-voltage primary winding connection terminal is arranged on the top wall of the insulator, a low-voltage secondary winding plug is arranged on the side wall of the insulator, sheds are evenly arranged on the insulator, and a cleaning component is arranged on the insulator;

[0008] The cleaning component includes a slide rail fixedly installed on the side wall of the insulator, a mounting frame that fits the insulator is slidably installed on the slide rail, a mounting rod is rotatably installed on the mounting frame, a cleaning rod is provided on the mounting rod, and cleaning hairs for cleaning the umbrella skirt and the edge of the umbrella skirt are evenly fixedly installed on the cleaning rod, a placement box is fixedly installed on the side wall of the insulator, an inlet and outlet are opened on the side wall of the placement box, a box door is hinged on the inlet and outlet, a connecting groove is opened on the bottom wall of the placement box, and a control component for controlling the mounting rod is provided on the placement box.

[0009] Furthermore, the control component includes a mounting groove on the top wall of the placement box, a control rod is vertically slidably installed in the mounting groove, and the bottom wall of the control rod is an inclined surface, a control port that cooperates with the control rod is opened on the mounting rod, a first spring is directly fixedly installed on the control rod and the mounting groove, and a reset spring is installed between the mounting frame and the mounting rod rotating shaft.

[0010] Furthermore, a first bevel gear is fixedly mounted on the side wall of the insulator, a rotating rod is rotatably mounted on the mounting rod, a second bevel gear meshing with the first gear is fixedly mounted on the rotating rod, a transmission rod is evenly rotatably mounted on the rotating rod, a belt is jointly mounted on the rotating rod and the cleaning rod is detachably mounted on the transmission rod, and a limiting assembly that cooperates with the first bevel gear is provided on the mounting frame.

[0011] Furthermore, the limit assembly includes a slide groove provided on the mounting frame, a plug rod is slidably installed in the slide groove, a second spring is fixedly installed between the plug rod and the slide groove, and a socket cooperating with the plug rod is provided on the slide rail.

[0012] Furthermore, an annular groove is provided on the insulator, an annular plate is slidably and sealably installed in the annular groove, a third spring is fixedly installed between the top wall of the annular groove and the annular groove, vertical rods are symmetrically fixedly installed on the top wall of the annular plate, a cover plate is fixedly installed on the top wall of the vertical rod, a wire hole is provided on the cover plate, a fixing hole is provided on the side wall of the cover plate, a groove is provided on the side wall of the placement box, a horizontal rod is slidably installed in the groove, and a fourth spring is fixedly installed between the horizontal rod and the groove, and a sealing assembly cooperating with the cover plate is provided on the insulator.

[0013] Furthermore, the sealing component is embedded in a sealing gasket on the top wall of the insulator, a sealing cavity is opened on the sealing gasket, a first air pipe is inserted in the sealing cavity, a connecting component is provided on the insulator, and the first air pipe is connected to the annular groove through the connecting component.

[0014] Furthermore, the connecting component includes a linkage groove provided on the insulator, a sealing rod is slidably installed in the linkage groove, and the top wall of the sealing rod is an inclined surface, a fifth spring is fixedly installed between the sealing rod and the linkage groove, a connecting hole connected to the first air pipe is provided on the sealing rod, an air hole connected to the connecting hole is provided on the annular groove, and an exhaust valve whose output end is connected to the annular groove is inserted on the inner bottom wall of the sealing cavity.

[0015] Furthermore, an elastic ring is fixedly installed in the wire hole, and sealing bristles are evenly fixedly installed on the side walls of the connecting groove.

[0016] Furthermore, pull rings are fixedly mounted on the control rod and the limiting rod.

[0017] Furthermore, the inclined surfaces of the horizontal rod and the sealing rod are both smooth mirror surfaces.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) This solution can separate the cleaning wool from the outside world by setting up a placement box, thereby effectively preventing external stains from adhering to the surface of the cleaning wool and affecting the cleaning effect, resulting in a decrease in the dirt level. The setting of the control rod makes it easy for users to fix the cleaning wool in the placement box through the installation rod and the cleaning rod, thereby facilitating the fixing of the cleaning wool in the placement box, thereby improving the service life of the transformer;

[0020] (2) In this solution, the first bevel gear cooperates with the second bevel gear. When the user pushes the installation rod to drive the cleaning rod to rotate around the umbrella skirt, the first bevel gear drives the second bevel gear to rotate. Then, during the rotation of the second bevel gear, the cleaning rod is driven to rotate through the rotating rod and the transmission rod. During the rotation of the cleaning rod, the cleaning bristles are driven to rotate, thereby further improving the cleaning effect of the umbrella skirt and the edge of the umbrella skirt. At the same time, when the cleaning bristles have been used for a long time, the user can replace the cleaning rod with a new one, thereby further improving the service life of the mutual inductor.

[0021] (3) In this solution, the cover moves upwards when the user is cleaning the shed, and the user can then check the connection status of the high-voltage primary winding terminal. When the user closes the cover, the airflow in the annular groove flows into the sealing cavity and expands the sealing gasket, thereby improving the sealing performance of the cover and effectively preventing external moisture from contacting the high-voltage primary winding terminal through the gap between the cover and the insulator and affecting its service life, thereby further extending the service life of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a cross-sectional view of the placement box and the mounting rod of the present invention;

[0024] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 For the present invention Figure 2 Enlarged view of point B in the middle;

[0026] Figure 5 It is a combined diagram of the mounting frame and the mounting rod of the present invention;

[0027] Figure 6 It is a combined diagram of the placement box and the box door of the present invention;

[0028] Figure 7 It is a top cross-sectional view of the mounting frame and the slide rail of the present invention;

[0029] Figure 8 It is a combined diagram of the cover plate and the insulator of the present invention;

[0030] Fig. 9 For the present invention Figure 8 Enlarged view of center C.

[0031] Description of the numbers in the figure:

[0032] 1. Insulator; 2. High-voltage primary winding terminal; 3. Low-voltage secondary winding plug; 4. Umbrella skirt; 501. Slide rail; 502. Mounting frame; 503. Mounting rod; 504. Cleaning rod; 505. Cleaning hair; 506. Placement box; 507. Box door; 601. Control rod; 602. Control port; 603. First spring; 604. Reset spring; 701. First bevel gear; 702. Turning rod; 703. Second bevel gear; 704. Transmission rod; 705. Insertion rod; 706. second spring; 707, jack; 708, belt; 801, annular groove; 802, annular plate; 803, third spring; 804, vertical rod; 805, cover plate; 806, fixing hole; 807, horizontal rod; 808, fourth spring; 901, sealing gasket; 902, sealing cavity; 903, first air pipe; 101, sealing rod; 102, fifth spring; 103, connecting hole; 104, air hole; 105, exhaust valve; 11, elastic ring; 12, sealing hair; 13, pull ring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 9 , an indoor fully enclosed pillar-type current transformer, comprising an insulator 1, a high-voltage primary winding terminal 2 is provided on the top wall of the insulator 1, a low-voltage secondary winding plug 3 is provided on the side wall of the insulator 1, sheds 4 are evenly provided on the insulator 1, and a cleaning component is provided on the insulator 1;

[0035] The cleaning component includes a slide rail 501 fixedly installed on the side wall of the insulator 1, a mounting frame 502 that fits the insulator 1 is slidably installed on the slide rail 501, a mounting rod 503 is rotatably installed on the mounting frame 502, a cleaning rod 504 is provided on the mounting rod 503, and cleaning hairs 505 for cleaning the umbrella skirt 4 and the edge of the umbrella skirt 4 are evenly fixedly installed on the cleaning rod 504, a placement box 506 is fixedly installed on the side wall of the insulator 1, an inlet and outlet are opened on the side wall of the placement box 506, a box door 507 is hinged on the inlet and outlet, a connecting groove is opened on the bottom wall of the placement box 506, and a control component for controlling the mounting rod 503 is provided on the placement box 506.

[0036] The control component includes a mounting groove on the top wall of the placement box 506, a control rod 601 is vertically slidably installed in the mounting groove, and the bottom wall of the control rod 601 is an inclined surface, a control port 602 cooperating with the control rod 601 is opened on the mounting rod 503, a first spring 603 is directly fixedly installed on the control rod 601 and the mounting groove, and a reset spring 604 is installed between the mounting frame 502 and the rotating shaft of the mounting rod 503.

[0037] In the initial state, the first spring 603 is in a freely extended state, and the return spring 604 is in a force storage state. When in use, the control rod 601 can be pulled first to compress the first spring 603. When the control rod 601 is out of contact with the control port 602, the return spring 604 is extended and drives the mounting rod 503 to rotate. During the rotation of the mounting rod 503, it gradually contacts the box door 507 and drives the box door 507 to rotate around the hinge point. After the box door 507 is out of contact with the mounting rod 503, the box door 507 is automatically closed. Then, during the rotation of the mounting rod 503, the cleaning hair 505 on the cleaning rod 504 is driven to contact the umbrella skirt 4. At this time, the user can push the mounting rod 503 to move, and during the movement of the mounting rod 503, the mounting frame 502 is driven to rotate along the slide rail 501, that is, the mounting rod 503 drives the cleaning hair 505 to rotate around the umbrella skirt 4 through the cleaning rod 504, and cleans the stains on the umbrella skirt 4 and the edge of the umbrella skirt 4. When the cleaning is completed, the user can push the installation rod 503 to rotate around the hinge point again and enter the placement box 506 through the entrance and exit. In the process of the installation rod 503 entering the placement box 506, it gradually contacts the inclined surface of the control rod 601 and applies a thrust to the inclined surface of the control rod 601. Then, under the action of the thrust, the control rod 601 moves upward and compresses the first spring 603. When the control rod 601 contacts the control port 602, the first spring 603 stretches and drives the control rod 601 to insert into the control port 602 to limit the installation rod 503. At the same time, in the process of the installation rod 503 entering the placement box 506, the cleaning hair 505 is driven to enter the placement box 506 through the cleaning rod 504, thereby effectively preventing external stains from adhering to the surface of the cleaning hair 505 and affecting the cleaning effect, resulting in a decrease in the dirt level, thereby playing a role in improving the service life of the mutual inductor.

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 As shown, a first bevel gear 701 is fixedly mounted on the side wall of the insulator 1, a rotating rod 702 is rotatably mounted on the mounting rod 503, a second bevel gear 703 meshing with the first gear is fixedly mounted on the rotating rod 702, a transmission rod 704 is evenly rotatably mounted on the rotating rod 702, a belt 708 is commonly mounted on the rotating rod 702 and the transmission rod 704, and the cleaning rod 504 is detachably mounted on the transmission rod 704, and a limiting component cooperating with the first bevel gear 701 is provided on the mounting frame 502.

[0039] The limit assembly includes a slide groove provided on the mounting frame 502 , in which a plug rod 705 is slidably installed, a second spring 706 is fixedly installed between the plug rod 705 and the slide groove, and a socket 707 cooperating with the plug rod 705 is provided on the slide rail 501 .

[0040] By adopting the above technical solution, in the process that the reset spring 604 drives the cleaning hair 505 to contact the umbrella skirt 4 through the installation rod 503 and the cleaning rod 504, the installation rod 503 drives the second bevel gear 703 to engage with the first bevel gear 701, and then in the process that the user pushes the installation rod 503 to drive the cleaning rod 504 to rotate around the umbrella skirt 4, the first bevel gear 701 drives the second bevel gear 703 to rotate, and then in the process that the second bevel gear 703 rotates, the cleaning rod 504 is driven to rotate through the rotating rod 702 and the transmission rod 704, and the cleaning hair 505 is driven to rotate in the process that the cleaning rod 504 rotates, thereby further improving the cleaning effect of the umbrella skirt 4 and the edge of the umbrella skirt 4, and at the same time, when the cleaning hair 505 has been used for a long time, the user can replace the new cleaning rod 504, thereby further improving the service life of the mutual inductor.

[0041] In the initial state, the second spring 706 is in a freely extended state, and at this time the plug rod 705 is inserted into the hole 707, and then the position of the mounting bracket 502 is fixed under the action of the plug rod 705 and the hole 707, that is, at this time, the mounting rod 503 can drive the second bevel gear 703 to mesh with the first bevel gear 701 during the rotation around the rotating shaft, and then when the return spring 604 drives the second bevel gear 703 to mesh with the first bevel gear 701 through the mounting rod 503, the user can first pull the plug rod 705 to make the plug rod 705 disengage from the hole 707, at this time the second spring 706 is stretched and has a tendency to recover, at this time the fixing effect of the mounting bracket 502 is in contact, and then the user can To push the installation rod 503 to move, and during the movement of the installation rod 503, the installation frame 502 is driven to rotate around the slide rail 501. After the installation frame 502 rotates around the slide rail 501 for one circle, the umbrella skirt 4 is cleaned, and then the installation frame 502 drives the insertion rod 705 to contact the socket 707 again. At this time, the second spring 706 contracts and drives the insertion rod 705 to be inserted into the socket 707 again, and then the installation frame 502 is fixed, so that the second bevel gear 703 can be limited, ensuring that the second bevel gear 703 can be driven to engage with the first bevel gear 701 during the rotation of the installation rod 503, thereby ensuring that the cleaning hair 505 can be driven to rotate normally during the movement of the installation rod 503.

[0042] like Figure 4 , Figure 8 , Fig. 9As shown, the insulator 1 is provided with an annular groove 801, an annular plate 802 is slidably and sealably installed in the annular groove 801, a third spring 803 is fixedly installed between the top wall of the annular groove 801 and the annular groove 801, a vertical rod 804 is symmetrically fixedly installed on the top wall of the annular plate 802, a cover plate 805 is fixedly installed on the top wall of the vertical rod 804, a wire hole is provided on the cover plate 805, a fixing hole 806 is provided on the side wall of the cover plate 805, a groove is provided on the side wall of the placement box 506, a horizontal rod 807 is slidably installed in the groove, and a fourth spring 808 is fixedly installed between the horizontal rod 807 and the groove, and a sealing component matching the cover plate 805 is provided on the insulator 1

[0043] The sealing component is embedded in a sealing gasket 901 on the top wall of the insulator 1, a sealing cavity 902 is opened on the sealing gasket 901, a first air pipe 903 is inserted in the sealing cavity 902, a connecting component is provided on the insulator 1, and the first air pipe 903 is connected to the annular groove 801 through the connecting component.

[0044] The connecting component includes a linkage groove opened on the insulator 1, a sealing rod 101 is slidably installed in the linkage groove, and the top wall of the sealing rod 101 is an inclined surface, a fifth spring 102 is fixedly installed between the sealing rod 101 and the linkage groove, a connecting hole 103 connected to the first air pipe 903 is opened on the sealing rod 101, an air hole 104 connected to the connecting hole 103 is opened on the annular groove 801, and an exhaust valve 105 whose output end is connected to the annular groove 801 is inserted on the inner bottom wall of the sealing cavity 902.

[0045] By adopting the above technical solution, in order to improve the service life of the transformer, it is necessary to regularly check the connection status of the high-voltage primary winding terminal 2. In the initial state, the third spring 803 and the fourth spring 808 are both in a stretched state. At this time, the output end of the horizontal rod 807 is located in the fixing hole 806 and fixes the cover 805. Then, when the mounting rod 503 is out of contact with the placement box 506, the mounting rod 503 gradually disengages from the horizontal rod 807. At this time, the fourth spring 808 contracts and drives the horizontal rod 807 to disengage from the fixing hole 806. Then, the third spring 803 contracts and drives the cover 805 to move upward through the annular plate 802 and the vertical rod 804. Then, the user can check the connection status of the high-voltage primary winding terminal 2 while cleaning, thereby improving the convenience of inspection, and can also effectively prevent problems with the connection of the high-voltage primary winding terminal 2 after the transformer has been used for a long time, affecting the service life of the transformer, thereby improving the service life of the transformer.

[0046] When the connection status of the high-voltage primary winding terminal 2 is checked, the user can push the cover 805 downward, and the fixing hole 806 moves downward in the process of the cover 805 moving downward. Then, when the user pushes the installation rod 503 into the placement box 506, the installation rod 503 gradually contacts the horizontal rod 807 and applies a thrust to the horizontal rod 807. Then, under the action of the thrust, the horizontal rod 807 moves out of the placement box 506 and stretches the fourth spring 808. During the movement of the horizontal rod 807, the horizontal rod 807 is gradually inserted into the fixing hole 806. Then, under the action of the horizontal rod 807, the cover 805 is fixed. Then, under the action of the cover 805, external stains can be prevented from falling onto the high-voltage primary winding terminal 2 and affecting the service life of the transformer, thereby extending the service life of the transformer.

[0047] During the downward movement of the cover plate 805, the annular plate 802 is driven to move downward by the vertical rod 804 and squeeze the third spring 803. At the same time, during the downward movement of the annular plate 802, the gas in the annular groove 801 is squeezed and flows to the sealing cavity 902 on the sealing gasket 901 through the connecting component and the first air pipe 903. Then, under the action of the gas, the sealing gasket 901 expands and fits tightly to the cover plate 805, thereby effectively preventing external moisture from contacting the high-voltage primary winding terminal 2 through the gap between the cover plate 805 and the insulator 1 and affecting its service life, thereby further extending the service life of the transformer.

[0048] During the downward movement of the annular plate 802, the gas in the annular groove 801 is squeezed and tends to flow to the outside. Then, during the insertion of the horizontal rod 807 into the fixing hole 806, the horizontal rod 807 gradually contacts the inclined surface of the sealing rod 101 and applies a thrust to the inclined surface of the sealing rod 101. Then, under the action of the thrust, the sealing rod 101 moves downward and compresses the fifth spring 102. At the same time, during the downward movement of the sealing rod 101, the connecting hole 103 is driven to connect with the first air pipe 903. At this time, the gas in the annular groove 801 flows into the sealing cavity 902 through the air hole 104, the connecting hole 103, and the first air pipe 903. The sealing pad 901 will expand only after the cover plate 805 is fixed, thereby improving the sealing effect of the cover plate 805.

[0049] Then, when the mounting rod 503 moves outward, the fourth spring 808 drives the horizontal rod 807 to disengage from the sealing rod 101. At this time, the fifth spring 102 drives the sealing rod 101 to reset upward. In the process of the sealing rod 101 resetting upward, the connecting hole 103 is driven to disengage from the first air pipe 903. Then, when the cover plate 805 drives the annular plate 802 to move upward through the vertical rod 804, the gas in the sealing chamber 902 flows into the annular groove 801 through the exhaust valve 105, thereby preparing for work again.

[0050] like Figure 2 , Figure 8 As shown, an elastic ring 11 is fixedly installed in the wire hole, and sealing hairs 12 are evenly fixedly installed on the side wall of the connecting groove.

[0051] By adopting the above technical solution, when the user connects the cable to the high-voltage primary winding terminal 2 through the wire hole, the elastic ring 11 can fit tightly with the cable, thereby further preventing external moisture from entering the cover plate 805, causing the high-voltage primary winding terminal 2 to get damp and affecting the service life of the transformer; and by providing the sealing bristles 12, the connecting groove can be sealed, thereby preventing external dust from adhering to the surface of the cleaning bristles 505 through the connecting groove, thereby affecting the cleaning effect of the umbrella skirt 4.

[0052] like Figure 2 , Figure 3 As shown, a pull ring 13 is fixedly mounted on both the control rod 601 and the limiting rod.

[0053] By adopting the above technical solution, when the user needs to move the control rod 601 or the limit rod, the user can pull the corresponding pull ring 13 to drive the corresponding control rod 601 or the limit rod to move, which makes it easier for the user to move the control rod 601 and the limit rod.

[0054] like Fig. 9 As shown, the inclined surfaces of the horizontal rod 807 and the sealing rod 101 are both smooth mirror surfaces.

[0055] By adopting the above technical solution, when the horizontal rod 807 drives the sealing rod 101 to move, the horizontal rod 807 and the inclined surface of the sealing rod 101 will rub against each other. By making the inclined surface of the sealing rod 101 a smooth mirror surface, the friction between the horizontal rod 807 and the inclined surface of the sealing rod 101 can be reduced, so that the horizontal rod 807 can smoothly drive the sealing rod 101 to move.

[0056] Instructions for use: When in use, the control rod 601 can be pulled first to compress the first spring 603. When the control rod 601 is out of contact with the control port 602, the reset spring 604 stretches and drives the mounting rod 503 to rotate. During the rotation of the mounting rod 503, the mounting rod 503 gradually contacts the box door 507 and drives the box door 507 to rotate around the hinge point. After the box door 507 is out of contact with the mounting rod 503, the box door 507 automatically closes. Then, during the rotation of the mounting rod 503, the cleaning hair 505 on the cleaning rod 504 is driven to contact the umbrella skirt 4. At this time, the user can push the mounting rod 503 to rotate. 503 moves, and during the movement of the mounting rod 503, the mounting frame 502 is driven to rotate along the slide rail 501, and the mounting rod 503 drives the cleaning hair 505 to rotate around the umbrella skirt 4 through the cleaning rod 504, and cleans the stains on the umbrella skirt 4 and the edge of the umbrella skirt 4; when the cleaning is completed, the user can push the mounting rod 503 to rotate around the hinge point again and enter the placement box 506 through the entrance and exit; when the user pushes the mounting rod 503 to drive the cleaning rod 504 to rotate around the umbrella skirt 4, the first bevel gear 701 drives the second bevel gear 703 to rotate, and then the second bevel gear During the rotation of 703, the cleaning rod 504 is driven to rotate through the rotating rod 702 and the transmission rod 704, and the cleaning hair 505 is driven to rotate during the rotation of the cleaning rod 504; when the installation rod 503 is out of contact with the placement box 506, the installation rod 503 gradually disengages from the horizontal rod 807, at which time the fourth spring 808 contracts and drives the horizontal rod 807 to disengage from the fixing hole 806, and then the third spring 803 contracts and drives the cover plate 805 to move upward through the annular plate 802 and the vertical rod 804, and then the user can clean the high-voltage primary winding terminal while cleaning. 2; in the process of the cover plate 805 moving downward, the annular plate 802 is driven to move downward and squeeze the third spring 803 through the vertical rod 804. At the same time, in the process of the annular plate 802 moving downward, the gas in the annular groove 801 is squeezed and flows into the sealing cavity 902 on the sealing gasket 901 through the connecting component and the first air pipe 903. Then, under the action of the gas, the sealing gasket 901 expands and fits tightly to the cover plate 805, thereby effectively preventing external moisture from contacting the high-voltage primary winding terminal 2 through the gap between the cover plate 805 and the insulator 1.

[0057] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An indoor fully enclosed pillar-type current transformer, comprising an insulator (1), a high-voltage primary winding connection terminal (2) being provided on the top wall of the insulator (1), a low-voltage secondary winding plug (3) being provided on the side wall of the insulator (1), shed skirts (4) being evenly provided on the insulator (1), and a cleaning assembly being provided on the insulator (1); Features: The cleaning component comprises a slide rail (501) fixedly mounted on the side wall of the insulator (1); a mounting frame (502) which is slidably mounted on the slide rail (501) and is in contact with the insulator (1); a mounting rod (503) is rotatably mounted on the mounting frame (502); a cleaning rod (504) is provided on the mounting rod (503); cleaning hairs (505) for cleaning the shed (4) and the edge of the shed (4) are evenly fixedly mounted on the cleaning rod (504); a placement box (506) is fixedly mounted on the side wall of the insulator (1); an inlet and outlet are provided on the side wall of the placement box (506); a box door (507) is hinged on the inlet and outlet; a connecting groove is provided on the bottom wall of the placement box (506); and a control component for controlling the mounting rod (503) is provided on the placement box (506).

2. The indoor fully enclosed pillar-type current transformer according to claim 1, characterized in that: The control assembly comprises a mounting groove provided on the top wall of the placement box (506), a control rod (601) being vertically slidably installed in the mounting groove, and the bottom wall of the control rod (601) is an inclined surface, a control opening (602) cooperating with the control rod (601) is provided on the mounting rod (503), a first spring (603) is directly fixedly installed between the control rod (601) and the mounting groove, and a reset spring (604) is installed between the mounting frame (502) and the rotating shaft of the mounting rod (503).

3. The indoor fully enclosed pillar-type current transformer according to claim 2, characterized in that: A first bevel gear (701) is fixedly mounted on the side wall of the insulator (1); a rotating rod (702) is rotatably mounted on the mounting rod (503); a second bevel gear (703) meshing with the first gear is fixedly mounted on the rotating rod (702); a transmission rod (704) is evenly rotatably mounted on the rotating rod (702); a belt (708) is mounted on the rotating rod and the transmission rod (704) together; the cleaning rod (504) is detachably mounted on the transmission rod (704); and a limiting assembly cooperating with the first bevel gear (701) is provided on the mounting frame (502).

4. The indoor fully enclosed pillar-type current transformer according to claim 3 is characterized in that: The limit assembly comprises a slide groove provided on the mounting frame (502), an insertion rod (705) being slidably installed in the slide groove, a second spring (706) being fixedly installed between the insertion rod (705) and the slide groove, and a socket (707) cooperating with the insertion rod (705) being provided on the slide rail (501).

5. The indoor fully enclosed pillar-type current transformer according to claim 4, characterized in that: The insulator (1) is provided with an annular groove (801), an annular plate (802) is slidably installed in the annular groove (801), a third spring (803) is fixedly installed between the top wall of the annular groove (801) and the annular groove (801), a vertical rod (804) is symmetrically fixedly installed on the top wall of the annular plate (802), a cover plate (805) is fixedly installed on the top wall of the vertical rod (804), a wire hole is provided on the cover plate (805), a fixing hole (806) is provided on the side wall of the cover plate (805), a groove is provided on the side wall of the placement box (506), a horizontal rod (807) is slidably installed in the groove, and a fourth spring (808) is fixedly installed between the horizontal rod (807) and the groove, and a sealing component that cooperates with the cover plate (805) is provided on the insulator (1).

6. The indoor fully enclosed pillar-type current transformer according to claim 5, characterized in that: The sealing component is embedded in a sealing gasket (901) on the top wall of the insulator (1); a sealing cavity (902) is provided on the sealing gasket (901); a first air pipe (903) is inserted into the sealing cavity (902); a connecting component is provided on the insulator (1), and the first air pipe (903) is connected to the annular groove (801) through the connecting component.

7. An indoor fully enclosed pillar-type current transformer according to claim 6, characterized in that: The connecting component comprises a linkage groove formed on the insulator (1), a sealing rod (101) being slidably mounted in the linkage groove, and the top wall of the sealing rod (101) being an inclined surface, a fifth spring (102) being fixedly mounted between the sealing rod (101) and the linkage groove, a connecting hole (103) being formed on the sealing rod (101) and being connected to the first air pipe (903), an air hole (104) being formed on the annular groove (801) and being connected to the connecting hole (103), and an exhaust valve (105) having an output end connected to the annular groove (801) being inserted on the inner bottom wall of the sealing cavity (902).

8. The indoor fully enclosed pillar-type current transformer according to claim 7, characterized in that: An elastic ring (11) is fixedly installed in the wire hole, and sealing hairs (12) are evenly fixedly installed on the side wall of the connecting groove.

9. The indoor fully enclosed pillar-type current transformer according to claim 8, characterized in that: Furthermore, a pull ring (13) is fixedly mounted on both the control rod (601) and the limiting rod.

10. The indoor fully enclosed pillar-type current transformer according to claim 8, characterized in that: The inclined surfaces of the horizontal rod (807) and the sealing rod (101) are both smooth mirror surfaces.

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