High-voltage large-current flexible alternating-current wall bushing

Abstract

The utility model discloses a high-voltage heavy-current flexible alternating-current wall bushing, which belongs to the technical field of cable laying and comprises a bushing, a plurality of copper bars are fixedly connected to the outer sides of the two ends of the bushing, a mounting plate is arranged at one end of the bushing, and two mounting blocks located between the mounting plate and a copper plate on the other side of the bushing are arranged on the outer wall of each side of the bushing. A mounting groove is formed in each mounting block, a mounting cavity is formed in the inner bottom wall of each mounting groove, a connecting plate is arranged in each mounting groove, a supporting plate is arranged on the top surface of each connecting plate, and two threaded rods penetrate through the mounting plates; the rotation of the threaded rod enables the driving assembly in the mounting block to move the connecting plate upwards, the movement of the connecting plate enables the supporting plate to abut against the inner wall of the pre-buried hole, the threaded rod is rotated by the outer side wall of the sleeve on each side, the supporting plate on each side abuts against the inner wall of the pre-buried hole, and the mounting stability of the sleeve is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable laying, and particularly relates to a high-voltage large-current flexible AC wall bushing. Background Technique

[0002] The wall bushing is also called a wall pipe, a waterproof bushing, a wall embedded pipe. The waterproof bushing is divided into a rigid waterproof bushing and a flexible waterproof bushing. The one used for conduction in electricity is called an AC wall bushing. It can be divided into a dry-type capacitive AC wall bushing and a porcelain-insulated AC wall bushing according to the material, and the abbreviations are silicone rubber bushing and porcelain bushing respectively.

[0003] When installing the existing wall bushing, a pre-embedded hole is left first, and then the wall bushing is placed in it. However, when there is a pre-embedded hole in the wall, it needs to be slightly larger. But after the wall bushing is placed, the wall bushing may shake in the pre-embedded hole, making the installation of the wall bushing unstable.

[0004] Therefore, we propose a high-voltage large-current flexible AC wall bushing to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problem of the stable installation of the wall bushing in the prior art, and to propose a high-voltage large-current flexible AC wall bushing.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A high-voltage large-current flexible AC wall bushing includes a bushing. A plurality of copper bars are fixedly connected to the outer sides of both ends of the bushing. One end of the bushing is provided with a mounting plate, and mounting holes are opened at the four corners of the mounting plate. Two mounting blocks are provided on each outer wall of the bushing between the mounting plate and the copper plate on the other side of the bushing. Each mounting block is provided with a mounting groove, and a mounting cavity is provided on the inner bottom wall of each mounting groove. A connecting plate is provided in each mounting groove. A support plate is provided on the top surface of the connecting plate. Two threaded rods penetrate through the mounting plate. One end of each threaded rod facing the mounting block is fixedly connected with a rotating shaft. Each rotating shaft extends into the mounting cavity of the mounting block. A driving component for driving the support plate upward is provided in each mounting cavity.

[0008] Preferably, the driving component includes a gear fixedly connected to the rotating shaft. A rack meshing with the gear is fixedly connected to the bottom of the connecting plate, and one end of the rack extends into the mounting cavity.

[0009] Preferably, the two mounting cavities are respectively arranged staggeredly in the two mounting blocks.

[0010] Preferably, an H-shaped slot is formed in the top surface of the connecting plate, and an H-shaped insertion plate inserted into the H-shaped slot is provided on one side of the support plate facing the connecting plate.

[0011] Preferably, lifting pieces are provided on both sides of the support plate, and the width of both sides of the lifting piece is greater than the width of the mounting block.

[0012] Preferably, the height of the top surface of the support plate received in the installation groove is flush with the height of the copper bar.

[0013] In summary, the technical effects and advantages of the present utility model are as follows: through the provided driving assembly, threaded rod, rotating shaft, mounting block, support plate and connecting plate, first insert the sleeve into the embedded hole, and then rotate the threaded rod on one side of the mounting plate. The rotation of the threaded rod causes the driving assembly in the mounting block to move the connecting plate upward. The movement of the connecting plate causes the support plate to abut against the inner wall of the embedded hole. Rotate the threaded rod on the outer side wall of each sleeve so that each support plate abuts against the inner wall of the embedded hole, realizing the installation stability of the sleeve; through the provided H-shaped slot and H-shaped insertion plate, insert the H-shaped insertion plate of the support plate into the H-shaped slot of the connecting plate to realize the replacement of the support plate after the sleeve is disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of a high-voltage large-current flexible AC wall bushing;

[0015] Figure 2 is a schematic structural diagram of a mounting block in a high-voltage large-current flexible AC wall bushing;

[0016] Figure 3 is a schematic structural diagram of a driving assembly in a high-voltage large-current flexible AC wall bushing;

[0017] Figure 4 is a schematic structural diagram of the inner wall of a mounting block in a high-voltage large-current flexible AC wall bushing.

[0018] In the figure: 1, sleeve; 2, copper bar; 3, mounting plate; 4, mounting block; 5, support plate; 6, lifting piece; 7, rotating shaft; 8, threaded rod; 9, connecting plate; 10, rack; 11, installation groove; 12, installation cavity; 13, gear; 14, H-shaped slot; 15, H-shaped insertion plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0020] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments.

[0021] Referring to Figures 1 - 3 , a high-voltage and large-current flexible AC wall bushing, comprising a bushing 1. A plurality of copper bars 2 are fixedly connected to the outer sides of both ends of the bushing 1. One end of the bushing 1 is provided with a mounting plate 3. Mounting holes are formed at the four corners of the mounting plate 3. The bushing 1 is fixed to the outer side of the wall through the mounting holes. Two mounting blocks 4 are provided on each outer wall of the bushing 1 between the mounting plate 3 and the copper plate on the other side of the bushing 1. An installation groove 11 is provided in each mounting block 4. An installation cavity 12 is provided on the inner bottom wall of each installation groove 11. A connecting plate 9 is provided in each installation groove 11. A support plate 5 is provided on the top surface of the connecting plate 9. Two threaded rods 8 penetrate through the mounting plate 3. Each threaded rod 8 is threadedly connected in the mounting plate 3. One end of each threaded rod 8 facing the mounting block 4 is fixedly connected with a rotating shaft 7. Each rotating shaft 7 extends into the installation cavity 12 of the mounting block 4. The rotating shaft 7 rotates in the mounting block 4. A driving component for driving the support plate 5 upward is provided in each installation cavity 12. By inserting the bushing 1 into the embedded hole, and then rotating the threaded rod 8 on one side of the mounting plate 3, the rotation of the threaded rod 8 causes the driving component in the mounting block 4 to move the connecting plate 9 upward. The movement of the connecting plate 9 causes the support plate 5 to abut against the inner wall of the embedded hole. The threaded rod 8 on the outer side wall of each side of the bushing 1 is rotated, so that the support plates 5 on each side abut against the inner wall of the embedded hole, realizing the installation stability of the bushing 1.

[0022] Referring to Figure 3 , the driving component includes a gear 13 fixedly connected to the rotating shaft 7. A rack 10 meshing with the gear 13 is fixedly connected to the bottom of the connecting plate 9, and one end of the rack 10 extends into the installation cavity 12. Through the rotation of the rotating shaft 7, the gear 13 on the rotating shaft 7 rotates synchronously, and then the gear 13 meshes with the rack 10, causing the rack 10 to move upward, pushing the support plate 5 outward. Since the two threaded rods 8 respectively control the two support plates 5 and support the two ends of one side of the bushing 1 respectively, the applicability of the support is improved.

[0023] Referring to Figure 3 , the two installation cavities 12 are respectively arranged staggered in the two mounting blocks 4. The two threaded rods 8 are respectively rotated, so that the gears 13 in each mounting block 4 rotate, and at the same time, the support plates 5 on both sides respectively abut against the inner wall of the embedded hole.

[0024] Referring to Figure 4 , an H-shaped slot 14 is formed on the top surface of the connecting plate 9. An H-shaped plug 15 inserted into the H-shaped slot 14 is provided on the side of the support plate 5 facing the connecting plate 9. When the bushing 1 is disassembled, since the support plate 5 abuts against the inner wall of the embedded hole for a long time, the top surface of the support plate 5 is damaged, which is convenient for replacement and reduces the reuse of the bushing 1.

[0025] Referring to Figures 2 - 4, lifting pieces 6 are provided on both sides of the support plate 5, and the widths of both sides of the lifting piece 6 are greater than the width of the mounting block 4.

[0026] Refer to Figure 1 , the top surface height of the support plate 5 received in the installation groove 11 is flush with the height of the copper bar 2, which is convenient for inserting the sleeve 1 into the reserved hole.

[0027] Working principle:

[0028] First, insert the sleeve 1 into the embedded hole, and then rotate the threaded rod 8 on one side of the mounting plate 3. When the threaded rod 8 rotates, the threaded rod 8 and the rotating shaft 7 rotate synchronously. Due to the rotation of the rotating shaft 7, the gear 13 fixedly connected to the rotating shaft 7 rotates synchronously. Then, the gear 13 meshes with the rack 10, causing the rack 10 to move upward, pushing the support plate 5 outward. The movement of the connecting plate 9 makes the support plate 5 abut against the inner wall of the embedded hole, realizing the installation stability of the sleeve 1.

[0029] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A high-voltage and high-current flexible AC wall bushing, comprising a bushing (1), characterized in that: A plurality of copper bars (2) are fixedly connected to the outer sides of both ends of the sleeve (1); a mounting plate (3) is provided at one end of the sleeve (1); mounting holes are provided at four corners of the mounting plate (3); two mounting blocks (4) are provided on the outer wall of each side of the sleeve (1) and are located between the mounting plate (3) and the copper plate on the other side of the sleeve (1); a mounting groove (11) is provided in each mounting block (4); a mounting cavity (12) is provided on the inner bottom wall of each mounting groove (11); a connecting plate (9) is provided in each mounting groove (11); a support plate (5) is provided on the top surface of the connecting plate (9); two threaded rods (8) are provided through the mounting plate (3); one end of each threaded rod (8) facing the mounting block (4) is fixedly connected to a rotating shaft (7); each rotating shaft (7) extends into the mounting cavity (12) of the mounting block (4); and a driving component for driving the supporting plate (5) upward is provided in each mounting cavity (12).

2. A high-voltage and high-current flexible AC wall bushing according to claim 1, characterized in that: The driving assembly comprises a gear (13) fixedly connected to the rotating shaft (7); a rack (10) meshing with the gear (13) is fixedly connected to the bottom of the connecting plate (9); and one end of the rack (10) extends into the mounting cavity (12).

3. The high-voltage and high-current flexible AC wall bushing according to claim 1, characterized in that: The two installation cavities (12) are respectively arranged alternately in the two installation blocks (4).

4. The high-voltage and high-current flexible AC wall bushing according to claim 1, characterized in that: An H-shaped slot (14) is provided on the top surface of the connecting plate (9), and an H-shaped plug plate (15) inserted into the H-shaped slot (14) is provided on the side of the supporting plate (5) facing the connecting plate (9).

5. The high-voltage and high-current flexible AC wall bushing according to claim 1, characterized in that: Lifting pieces (6) are provided on both sides of the support plate (5), and the width of both sides of the lifting pieces (6) is greater than the width of the mounting block (4).

6. The high-voltage and high-current flexible AC wall bushing according to claim 5, characterized in that: The top surface height of the support plate (5) received in the mounting groove (11) is flush with the height of the copper busbar (2).

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