Transformer insulating sleeve

Abstract

The utility model discloses a transformer insulating sleeve which comprises an insulating porcelain body, the side wall of the insulating porcelain body is sleeved with a plurality of sets of ceramic chips, the outer wall of the insulating porcelain body is provided with a wiring hole, the side of the wiring hole is provided with a first semicircular pipe and a second semicircular pipe, and the upper end of the insulating porcelain body is provided with a threaded through hole. A threaded rod is arranged in the threaded through hole, a plug is installed at the upper end of the threaded cover, a sleeving seat is fixedly connected to the side wall of the lower end of the insulating porcelain body in a sleeving mode, multiple sets of installation covers are installed on the upper portion of the sleeving seat, installation bolts are arranged in the multiple sets of installation covers, and multiple sets of installation holes are formed in the upper portion of the sleeving seat; and two groups of mounting plates are mounted on the side wall of the insulating porcelain body. The transformer insulating sleeve has the advantages that the first semicircular pipe and the second semicircular pipe are adopted, a high-voltage wire can be conveniently inserted into the wiring hole in a penetrating mode through the first semicircular pipe and the second semicircular pipe, and the use practicability of the transformer insulating sleeve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, and specifically to transformer insulating bushings. Background Art

[0002] The transformer insulating bushing is a connecting insulating structure that leads the high- and low-voltage leads inside the transformer to the outside of the oil tank. It not only serves as the insulation between the lead and the ground, but also plays the role of fixing the lead. In actual use, it has the advantages of simple operation, safe use, stable structure, and good insulation effect.

[0003] The prior art discloses a transformer insulating bushing with the publication number of CN205666130U. In actual use of the above utility model, the high-voltage wire needs to penetrate the wiring hole before the wiring work can be carried out. Due to the narrow space of the wiring hole, it is difficult for the high-voltage wire to accurately penetrate the wiring hole. Multiple attempts will increase the operation steps and reduce the practicality of this utility model. At the same time, the insulating porcelain body needs to be connected to the transformer through a bolt structure. Since most transformers are installed at high places, when the operator uses the bolt structure to carry out the connection work at high places, due to the small size of the bolt structure, it is easy for the bolt structure to fall to the ground, which brings inconvenience to the connection and use of this utility model.

[0004] In view of the problems in the related art, no effective solution has been proposed yet. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides a transformer insulating bushing, which has the advantages of facilitating the insertion of the high-voltage wire through the wiring hole and avoiding the accidental loss of the bolt structure, thereby solving the problems in the above background art.

[0007] (2) Technical Solutions

[0008] In order to achieve the above advantages of facilitating the insertion of the high-voltage wire through the wiring hole and avoiding the accidental loss of the bolt structure, the specific technical solutions adopted by the utility model are as follows:

[0009] Transformer insulating bushing, including an insulating porcelain body, a plurality of porcelain pieces are sleeved on the side wall of the insulating porcelain body, a wiring hole is arranged on the outer wall of the insulating porcelain body, and a first semi-circular tube and a second semi-circular tube are installed on the side of the wiring hole. A threaded through hole is arranged at the upper end of the insulating porcelain body, a threaded rod is arranged inside the threaded through hole, and a plug is installed at the upper end of the threaded cover. A socket seat is fixedly sleeved on the lower side wall of the insulating porcelain body, and a plurality of mounting covers are installed on the upper part of the socket seat. A plurality of mounting bolts are arranged inside the plurality of mounting covers. A plurality of mounting holes are arranged on the upper part of the socket seat. Two mounting plates are installed on the side wall of the insulating porcelain body, and a bidirectional lead screw is installed between the two mounting plates through a bearing. Two lead screw sleeves are sleeved on the side wall of the bidirectional lead screw. Socket plates are fixedly sleeved on the side walls of the two lead screw sleeves. The two socket plates are respectively fixedly connected to the first semi-circular tube and the second semi-circular tube. A guide rod slidably penetrates between the two socket plates, and both ends of the guide rod are fixedly connected to the opposite surfaces of the two mounting plates. A guide hopper is installed at one end of the first semi-circular tube.

[0010] Further, a hand wheel is installed at one end of the bidirectional lead screw.

[0011] Further, the bidirectional lead screw and the two lead screw sleeves are in threaded cooperation with each other.

[0012] Further, a through hole and two jacks are arranged on the upper parts of the plurality of mounting covers. Connecting hole plates are fixedly sleeved on the limiting ends of the plurality of mounting bolts. A plurality of ball sockets are arranged on the outer walls of the plurality of connecting hole plates, and a plurality of balls are arranged inside the plurality of ball sockets. A plurality of magnet columns are installed on the upper parts of the plurality of connecting hole plates. Connecting screws penetrate through the inside of the two jacks on the same side, and the lower ends of the two connecting screws on the same side are fixedly connected to the upper part of the socket seat. Connecting nuts are sleeved on the side walls of the two connecting screws on the same side.

[0013] Further, the two connecting screws on the same side and the two connecting nuts on the same side are in threaded cooperation with each other.

[0014] Further, the plurality of mounting covers are all made of iron materials.

[0015] Further, the threaded through hole and the threaded rod are in threaded cooperation with each other.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present utility model provides a transformer insulating bushing, which has the following beneficial effects:

[0018] (1). This utility model adopts a first semi-circular tube and a second semi-circular tube. When actually using the transformer insulating bushing, the operator rotates the handwheel clockwise by hand, which can drive the bidirectional threaded rod to rotate clockwise. Since the bidirectional threaded rod and the thread of the two sets of lead screw sleeves cooperate with each other, the clockwise rotating bidirectional threaded rod can push the two sets of lead screw sleeves closer to each other. The two sets of lead screw sleeves drive the first semi-circular tube and the second semi-circular tube to move respectively. When the first semi-circular tube and the second semi-circular tube contact each other, the operator can move one end of the high-voltage wire by hand, and insert it into the interior of the first semi-circular tube and the second semi-circular tube through the guiding hopper. One end of the high-voltage wire is guided by the first semi-circular tube and the second semi-circular tube, and can be smoothly inserted into the interior of the wiring hole. After that, the operator rotates the handwheel counterclockwise, which can make the counterclockwise rotating bidirectional threaded rod push the two sets of lead screw sleeves away from each other. The two sets of lead screw sleeves drive the first semi-circular tube and the second semi-circular tube to move respectively. When the first semi-circular tube and the second semi-circular tube do not affect the wiring of one end of the high-voltage wire, stop the handwheel. By setting the first semi-circular tube and the second semi-circular tube, it is convenient to insert the high-voltage wire through the through wiring hole, improving the practicality of the use of the transformer insulating bushing.

[0019] (2). This utility model adopts a socket seat and a mounting cover. When installing the transformer insulating bushing, the operator moves the insulating porcelain body by hand. When the socket seat aligns with the installation location on the transformer outer box, the operator uses a screwdriver to penetrate a set of openings, and then rotates the screwdriver clockwise. A set of mounting bolts on the same side can be inserted into the reserved threaded holes of the transformer outer box clockwise. At the same time, multiple sets of balls on the same side are respectively rolled inside multiple sets of ball sockets on the same side under the frictional force of a set of mounting covers on the same side. When it is necessary to disassemble the insulating porcelain body, the operator uses a screwdriver to penetrate a set of openings, and then rotates the screwdriver counterclockwise. When a set of magnet columns on the same side adsorb to the top of a set of mounting covers on the same side, it can prevent a set of mounting bolts on the same side from shaking inside a set of mounting covers on the same side. By using the threaded cooperation of two sets of connecting screws and two sets of connecting nuts on the same side, the operator can counterclockwise remove the two sets of connecting nuts on the same side, and disassemble a set of mounting covers on the same side. The use of the other sets of mounting covers and mounting bolts can be obtained in the same operation. By setting the socket seat and the mounting cover, it can prevent the accidental loss of the bolt structure, bringing convenience to the connection and use of the transformer insulating bushing. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is a schematic structural diagram of the transformer insulating bushing proposed by the present utility model;

[0022] Figure 2 It is a three-dimensional diagram of the plug proposed by the utility model;

[0023] Figure 3 It is a three-dimensional diagram of the guide bucket proposed by the utility model;

[0024] Figure 4 The utility model proposes Figure 1 A magnified view of middle;

[0025] Figure 5 The utility model proposes Figure 1 Enlarged view of B.

[0026] In the figure:

[0027] 1. Insulating porcelain body; 2. Porcelain piece; 3. Threaded through hole; 4. Threaded rod; 5. Plug; 6. Socket seat; 7. Guide bucket; 8. Mounting plate; 9. Bidirectional screw lever; 10. Screw sleeve; 11. Socket plate; 12. First semicircular tube; 13. Second semicircular tube; 14. Guide rod; 15. Mounting hole; 16. Mounting cover; 17. Opening hole; 18. Mounting bolt; 19. Connecting hole plate; 20. Magnet column; 21. Ball; 22. Socket; 23. Connecting screw; 24. Connecting nut. DETAILED DESCRIPTION

[0028] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] According to an embodiment of the utility model, a transformer insulating bushing is provided.

[0030] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-5As shown in the figure, the transformer insulating bushing according to the embodiment of the present utility model includes an insulating porcelain body 1. A plurality of porcelain pieces 2 are sleeved on the side wall of the insulating porcelain body 1. A wiring hole is provided on the outer wall of the insulating porcelain body 1, and a first semi-circular tube 12 and a second semi-circular tube 13 are installed on the side of the wiring hole. A threaded through-hole 3 is provided at the upper end of the insulating porcelain body 1, and a threaded rod 4 is provided inside the threaded through-hole 3, and a plug 5 is installed at the upper end of the threaded cover. A socket seat 6 is fixedly sleeved on the lower side wall of the insulating porcelain body 1, and a plurality of mounting covers 16 are installed on the upper part of the socket seat 6. A plurality of mounting bolts 18 are provided inside the plurality of mounting covers 16. A plurality of mounting holes 15 are provided on the upper part of the socket seat 6. Two mounting plates 8 are installed on the side wall of the insulating porcelain body 1, and a bidirectional lead screw 9 is installed between the two mounting plates 8 through a bearing. Two lead screw sleeves 10 are sleeved on the side wall of the bidirectional lead screw 9. Socket plates 11 are fixedly sleeved on the side walls of the two lead screw sleeves 10. The two socket plates 11 are respectively fixedly connected to the first semi-circular tube 12 and the second semi-circular tube 13. A guide rod 14 slidably penetrates between the two socket plates 11, and both ends of the guide rod 14 are fixedly connected to the opposite surfaces of the two mounting plates 8. A guiding hopper 7 is installed at one end of the first semi-circular tube 12. By providing the first semi-circular tube 12 and the second semi-circular tube 13, it is convenient to insert and penetrate the high-voltage wire into the wiring hole, improving the practicality of the transformer insulating bushing.

[0031] In one embodiment, a handwheel is installed at one end of the bidirectional lead screw 9, and the handwheel can facilitate the rotation and use of the bidirectional lead screw 9.

[0032] In one embodiment, the bidirectional lead screw 9 and the two lead screw sleeves 10 are in threaded cooperation with each other, facilitating the adjustment of the use positions of the two lead screw sleeves 10.

[0033] In one embodiment, a plurality of through holes 17 and two jacks 22 are provided on the upper parts of the plurality of mounting covers 16. Connecting hole plates 19 are fixedly sleeved on the limiting ends of the plurality of mounting bolts 18. A plurality of ball sockets are provided on the outer walls of the plurality of connecting hole plates 19, and a plurality of ball bearings 21 are provided inside the plurality of ball sockets. A plurality of magnet columns 20 are installed on the upper parts of the plurality of connecting hole plates 19. Connecting screws 23 penetrate through the inside of the two jacks 22 on the same side, and the lower ends of the two connecting screws 23 on the same side are fixedly connected to the upper part of the socket seat 6. Connecting nuts 24 are sleeved on the side walls of the two connecting screws 23 on the same side. By providing the socket seat 6 and the mounting covers 16, the accidental loss of the bolt structure can be avoided, bringing convenience to the connection and use of the transformer insulating bushing.

[0034] In one embodiment, the two connecting screws 23 on the same side and the two connecting nuts 24 on the same side are in threaded cooperation with each other, facilitating the adjustment of the use positions of the two connecting nuts 24 on the same side.

[0035] In one embodiment, the plurality of mounting covers 16 are all made of iron materials, providing a guarantee for the adsorption of the plurality of magnet columns 20.

[0036] In one embodiment, the threaded through-hole 3 and the threaded rod 4 are in threaded engagement with each other, facilitating the adjustment of the use position of the threaded rod 4.

[0037] Working principle:

[0038] During the actual use of the transformer bushing, the operator rotates the handwheel clockwise by hand, which can drive the double-threaded lead screw 9 to rotate clockwise. Since the double-threaded lead screw 9 and the two sets of lead screw sleeves 10 are in threaded engagement with each other, the clockwise-rotating double-threaded lead screw 9 can push the two sets of lead screw sleeves 10 closer to each other. The two sets of lead screw sleeves 10 drive the first semi-circular tube 12 and the second semi-circular tube 13 to move respectively. When the first semi-circular tube 12 and the second semi-circular tube 13 come into contact with each other, the operator can move one end of the high-voltage wire by hand, and insert it into the interior of the first semi-circular tube 12 and the second semi-circular tube 13 through the guiding hopper 7. One end of the high-voltage wire is guided by the first semi-circular tube 12 and the second semi-circular tube 13, and can be smoothly inserted into the interior of the wiring hole. After that, the operator rotates the handwheel counterclockwise, which can make the counterclockwise-rotating double-threaded lead screw 9 push the two sets of lead screw sleeves 10 away from each other. The two sets of lead screw sleeves 10 drive the first semi-circular tube 12 and the second semi-circular tube 13 to move respectively. When the first semi-circular tube 12 and the second semi-circular tube 13 do not affect the wiring of one end of the high-voltage wire, stop the handwheel. By providing the first semi-circular tube 12 and the second semi-circular tube 13, it is convenient to insert the high-voltage wire through the through wiring hole, improving the practicality of the use of the transformer bushing. At the same time, when installing the transformer bushing, the operator moves the insulating porcelain body 1 by hand. When the socket seat 6 is aligned with the installation position of the transformer outer box, the operator uses a screwdriver to penetrate a set of through holes 17, and then rotates the screwdriver clockwise. A set of mounting bolts 18 on the same side can be inserted clockwise into the reserved threaded holes of the transformer outer box. At the same time, multiple sets of balls 21 on the same side are respectively rolled inside multiple sets of ball sockets on the same side under the frictional force of a set of mounting covers 16 on the same side. When it is necessary to disassemble the insulating porcelain body 1, the operator uses a screwdriver to penetrate a set of through holes 17, and then rotates the screwdriver counterclockwise. When a set of magnet columns 20 on the same side adsorbs to the top of a set of mounting covers 16 on the same side, it can prevent a set of mounting bolts 18 on the same side from shaking inside a set of mounting covers 16 on the same side. By using the threaded engagement of two sets of connecting screws 23 and two sets of connecting nuts 24 on the same side, the operator counterclockwise removes the two sets of connecting nuts 24 on the same side, and can disassemble a set of mounting covers 16 on the same side. The use of the remaining sets of mounting covers 16 and mounting bolts 18 can be obtained in the same operation. By providing the socket seat 6 and the mounting covers 16, the accidental loss of the bolt structure can be avoided, bringing convenience to the connection and use of the transformer bushing.

[0039] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installation", "setting", "connection", "fixation", "rotary connection" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] The above description is only the preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. Insulating bushing of transformer, characterized in that, It includes an insulating porcelain body (1). Multiple groups of porcelain pieces (2) are sleeved on the side wall of the insulating porcelain body (1). A wiring hole is provided on the outer wall of the insulating porcelain body (1), and a first semi-circular tube (12) and a second semi-circular tube (13) are installed on the side of the wiring hole. A threaded through-hole (3) is provided at the upper end of the insulating porcelain body (1), and a threaded rod (4) is arranged inside the threaded through-hole (3). A plug (5) is installed at the upper end of the threaded cover. A socket seat (6) is fixedly sleeved on the lower side wall of the insulating porcelain body (1), and multiple groups of mounting covers (16) are installed on the upper part of the socket seat (6). Multiple groups of mounting bolts (18) are arranged inside multiple groups of the mounting covers (16). Multiple groups of mounting holes (15) are provided on the upper part of the socket seat (6). Two mounting plates (8) are installed on the side wall of the insulating porcelain body (1), and a bidirectional lead screw (9) is installed between the two mounting plates (8) through a bearing. Two lead screw sleeves (10) are sleeved on the side wall of the bidirectional lead screw (9). Socket plates (11) are fixedly sleeved on the side walls of the two lead screw sleeves (10). The two socket plates (11) are respectively fixedly connected to the first semi-circular tube (12) and the second semi-circular tube (13). A guide rod (14) slidably penetrates between the two socket plates (11), and the two ends of the guide rod (14) are fixedly connected to the opposite surfaces of the two mounting plates (8). A guiding hopper (7) is installed at one end of the first semi-circular tube (12).

2. The transformer insulating bushing according to claim 1, characterized in that, A hand wheel is installed at one end of the bidirectional lead screw (9).

3. The transformer insulating bushing according to claim 1, wherein, The bidirectional lead screw (9) and the two lead screw sleeves (10) are in threaded cooperation with each other.

4. The transformer insulating bushing according to claim 1, wherein Openings (17) and two jacks (22) are provided on the upper parts of multiple groups of the mounting covers (16). Connection hole plates (19) are fixedly sleeved on the limiting ends of the side walls of multiple groups of the mounting bolts (18). Multiple ball sockets are provided on the outer walls of multiple groups of the connection hole plates (19), and balls (21) are arranged inside multiple groups of the ball sockets. Multiple magnet columns (20) are installed on the upper parts of multiple groups of the connection hole plates (19). Connection screws (23) penetrate through the inside of two jacks (22) on the same side. The lower ends of the two connection screws (23) on the same side are fixedly connected to the upper part of the socket seat (6). Connection nuts (24) are sleeved on the side walls of the two connection screws (23) on the same side.

5. The transformer insulating bushing according to claim 4, characterized in that, The two connection screws (23) and the two connection nuts (24) on the same side are in threaded cooperation with each other.

6. The transformer insulating bushing according to claim 1, wherein, Multiple groups of the mounting covers (16) are all made of iron materials.

7. The transformer insulating bushing according to claim 1, wherein The threaded through-hole (3) and the threaded rod (4) are in threaded cooperation with each other.

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