Wall bushing of high-voltage electric box

Abstract

The utility model discloses a wall bushing for a high-voltage electric box, which belongs to the technical field of wall bushings and comprises a partition plate and two bushings, the two bushings are fixedly mounted on two sides of the partition plate respectively, the partition plate and the two bushings are integrally cast and formed, a through hole is formed in the outer end of the partition plate, two symmetrically distributed clamping plates are fixedly connected to the inner side of the through hole, and the two clamping plates are fixedly connected with the partition plate. Mounting grooves are formed in the clamping plates, clamping assemblies are arranged in the mounting grooves, two dustproof assemblies are arranged at the end, away from the partition plate, of the sleeve, a through hole is formed in the outer end of the partition plate so that a busbar can penetrate through the through hole, the two clamping assemblies are arranged on the inner side of the through hole, the driving block can move by rotating the bolt, and the moving driving block can press the abutting block; according to the utility model, the through holes are arranged in the through holes, the through holes move outwards, and the internal sizes of the through holes can be adjusted through the movement of the two abutting blocks, so that busbars with different sizes can be clamped through the two abutting blocks when passing through the through holes, and the through holes can be suitable for the busbars with different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of wall bushings, and more particularly to a high-voltage electrical box wall bushing. Background Art

[0002] A wall bushing is a device specifically used for passing cables through walls. It is a tubular structure that protects cables, reduces the size of the perforation, strengthens the rigidity of the perforation area, and prevents the entry of air, dust, insects, steam, water, etc. High-voltage electrical box wall bushings are mostly used to protect busbars passing through the side walls of electrical cabinets. Busbar wall bushings are similar to wall bushings, but are specifically used for multi-core power cables (busbars) passing through walls.

[0003] The Chinese patent announcement number CN220457077U discloses a fire-resistant electric high-voltage wall bushing. By setting up an installation mechanism, a movable connecting rod is used to quickly align the installation hole on the partition, thereby achieving the purpose of labor-saving and quick installation. When the connecting rod is hidden, the stability and safety are high, and the connecting rod is prevented from injuring personnel. When the movable plate is pushed hard, the limit plate at the left end leaves the limit groove and slides on the slide rail, thereby driving the connecting plate and the connecting rod to move out to the right, and the limit plate is embedded in the limit groove at the right end to stabilize its position, so that the connecting rod can pass through the mounting hole of the partition stably and quickly, achieving quick and labor-saving installation and improving the convenience of installation.

[0004] Busbars are often used in high-voltage electrical cabinets for power transmission. The busbars used for equipment with different voltages or powers have different specifications. The higher the power, the larger the busbar size. The bushings in the above solution cannot be adjusted according to the size of the busbar. When dealing with busbars of different specifications, bushings of different specifications need to be customized. Customizing bushings of different sizes increases production costs and the complexity of inventory management, and also increases the user's purchase cost.

[0005] Therefore, it is necessary to provide a high-voltage electrical box wall bushing to solve the above problems. Utility Model Content

[0006] The utility model provides a high-voltage electrical box wall bushing, which can improve the problem in the related art that the bushing size cannot be adjusted according to the size of the busbar. When dealing with busbars of different specifications, bushings of different specifications need to be customized. Customizing bushings of different sizes will increase production costs and the complexity of inventory management, and also increase the purchase cost of users.

[0007] An embodiment of the present application provides a high-voltage electrical box wall bushing, comprising a partition and two bushings, the two bushings being fixedly mounted on both sides of the partition, the partition and the two bushings being integrally cast, a through hole being provided at the outer end of the partition, two symmetrically distributed clamping plates being fixedly connected to the inner side of the through hole, an installation groove being provided inside the clamping plate, a clamping assembly being provided inside the installation groove, two dustproof assemblies being provided at one end of the bushing away from the partition, the clamping assembly comprising an abutment block and a drive block, the drive block and the abutment block being arranged in a right-angled triangle, and the inclined surfaces of the abutment block and the drive block abutting against each other.

[0008] The above technical solutions in the embodiments of the present application have at least the following technical effects:

[0009] (1) A through hole is provided at the outer end of the partition plate for the busbar to pass through, and two clamping assemblies are provided on the inner side of the through hole. By turning the bolt, the driving block can be moved, and the moving driving block will press the abutment block to move it outward. By moving the two abutment blocks, the internal size of the through hole can be adjusted, so that when busbars of different sizes pass through, they can be clamped by the two abutment blocks, making it suitable for busbars of different sizes.

[0010] (2) Two dustproof components are provided at one end of each bushing. By clamping the clamping ring on the insulating ring and then tightening it with screws, the cover plate and the baffle can be matched to block the outside of the bushing, so that external dust, insects and other debris are not easy to enter, thereby improving the protection of the busbar and reducing its failure rate.

[0011] In some embodiments, the outer end of the sleeve is fixedly connected to a plurality of insulating rings distributed at equal distances, the partition and the two sleeves are made of epoxy resin, and the outer end of the partition is provided with a plurality of bolt holes.

[0012] In some embodiments, the dustproof component includes a baffle, two cover plates are fixedly connected to the outer end of the baffle, and a through groove is provided at the outer end of the baffle.

[0013] In some embodiments, the outer end of the baffle is fixedly connected to a clamping ring, the clamping ring is adapted to the insulating ring, and the outer end of the baffle is fixedly connected to two connecting blocks.

[0014] In some embodiments, both ends of the abutment block are fixedly connected to a slider 1, the abutment block is slidably connected to the inner side wall of the installation groove through the slider 1, and the outer end of the abutment block is provided with an anti-slip groove.

[0015] In some embodiments, the driving block inclined surface is fixedly connected to a second slider, the abutment block inclined surface is provided with a sliding groove, and the second slider is slidably connected to the sliding groove.

[0016] In some embodiments, the clamping assembly also includes a bolt, a threaded sleeve adapted to the bolt is fixed to the outer end of the drive block, the bottom end of the bolt passes through the side wall of the clamp and extends to the inside of the mounting groove, and the bottom end of the bolt is rotatably connected to the bottom end of the inside of the mounting groove, and the bolt is threadedly connected to the threaded sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 This is a schematic diagram of the first overall structure of the utility model;

[0019] Figure 2 This is a second overall structural diagram of the present utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the dustproof component of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the partition of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the clamping assembly of the present utility model;

[0023] Figure 6 This is a schematic diagram of the exploded structure of the clamping assembly of the present invention.

[0024] Description of the numbers in the figure:

[0025] 1. Casing;

[0026] 2. Partition;

[0027] 3. Bolt holes;

[0028] 4. Dustproof assembly; 41. Snap ring; 42. Connecting block; 43. Cover; 44. Baffle;

[0029] 5. Splint;

[0030] 6. Clamping assembly; 61. Abutment block; 62. Bolt; 63. Driving block; 64. Slider 1; 65. Slider 2; 66. Slide; 67. Threaded sleeve;

[0031] 7. Mounting slot;

[0032] 8. Through hole. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the accompanying drawings are intended to cover non-exclusive inclusions.

[0035] Based on this, the problem in related technologies that the size of the sleeve cannot be adjusted according to the size of the busbar can be improved. When dealing with busbars of different specifications, sleeves of different specifications need to be customized. Customizing sleeves of different sizes will increase production costs and the complexity of inventory management, and also increase the purchase cost of users.

[0036] See also Figures 1-6 A high-voltage electrical box wall bushing comprises a partition 2 and two bushings 1, the two bushings 1 are fixedly mounted on both sides of the partition 2, the partition 2 and the two bushings 1 are integrally cast, a through hole 8 is provided at the outer end of the partition 2, two symmetrically distributed plywood 5 are fixedly connected to the inner side of the through hole 8, a mounting groove 7 is provided inside the plywood 5, a clamping assembly 6 is provided inside the mounting groove 7, two dustproof assemblies 4 are provided at one end of the bushing 1 away from the partition 2, the clamping assembly 6 comprises an abutment block 61 and a driving block 63, the driving block 63 and the abutment block 61 are both arranged in a right triangle, and the inclined surfaces of the abutment block 61 and the driving block 63 abut each other.

[0037] The outer end of the sleeve 1 is fixedly connected with a plurality of insulating rings distributed at equal distances. The partition 2 and the two sleeves 1 are made of epoxy resin. The outer end of the partition 2 is provided with a plurality of bolt holes 3.

[0038] The wall pipe sleeve is mainly used to protect cables or busbars when they pass through walls. Whether passing through the building wall or the side wall of the electrical box, the busbar and the cable cannot directly contact it to prevent leakage or damage. The device in this scheme is mainly used for the busbar in the high-voltage electrical cabinet to pass through the electrical box. The main body is composed of two sleeves 1 and a partition 2. The two sleeves 1 are symmetrically fixed on the outer end of the partition 2. The two sleeves 1 and the partition 2 are integrally cast using epoxy resin. Epoxy resin is a commonly used engineering plastic with excellent insulation properties. The bushing 1 has good chemical corrosion resistance and good mechanical properties, including high strength, hardness and wear resistance, and can be used to manufacture wear-resistant parts and structural parts. A plurality of equidistantly distributed insulating rings are provided at the outer end of the bushing 1. The equidistantly distributed insulating rings make the bushing 1 look similar to a corrugated pipe. The insulating rings not only strengthen the structural strength of the bushing 1, but also cooperate with the bushing 1 to prevent arc breakdown. At the same time, due to the isolation of the bushing 1 and the partition 2, the busbar passing through it can be isolated from the wall or metal cabinet, thereby improving safety.

[0039] Four bolt holes 3 are provided at the outer end of the partition 2. By passing the bolts through it and then tightening it, it can be fixed to the side wall of the electrical cabinet. The bolt holes 3 play the role of fixed installation. A through hole 8 is provided inside the partition 2. Two symmetrically distributed clamping plates 5 are fixed on the inner side of the through hole 8. Mounting grooves 7 are provided inside the two clamping plates 5. A clamping assembly 6 is provided inside the mounting groove 7. After the busbar passes through the through hole 8, since two clamping assemblies 6 are provided on the inner side of the through hole 8, the driving block 63 can be moved by rotating the bolt 62. The moving driving block 63 will press the abutment block 61 to move it outward. The internal size of the through hole 8 can be adjusted by moving the two abutment blocks 61, so that busbars of different sizes can be clamped by the two abutment blocks 61 when passing through, so that it can be suitable for busbars of different sizes, more universal, no need to customize busbars of different sizes, and can more conveniently meet the installation requirements of cables of different sizes, thereby improving flexibility and adaptability.

[0040] Optionally, in some embodiments, see Figure 1 and Figure 3 The dustproof component 4 includes a baffle 44, two cover pieces 43 are fixedly connected to the outer end of the baffle 44, and a through groove is provided at the outer end of the baffle 44.

[0041] A clamping ring 41 is fixedly connected to the outer end of the baffle 44 , and the clamping ring 41 is adapted to the insulating ring. Two connecting blocks 42 are fixedly connected to the outer end of the baffle 44 .

[0042] The four dustproof components 4 in this solution are respectively arranged at the outer ends of the two sleeves 1, and are used in pairs. The outer end of the baffle 44 is provided with a through groove, and the outer end of the baffle 44 is fixed with a clamping ring 41. The clamping ring 41 is mainly used to clamp on the outer end of the sleeve 1. The outer end of the sleeve 1 is provided with an insulating ring. By wrapping the outermost insulating ring with the clamping ring 41, the baffle 44 can be installed on the outer end of the sleeve 1. Then, another dustproof component 4 is also installed on one side. The two dustproof components 4 can block the outer end of the sleeve 1. Connecting blocks 42 are fixed on the upper and lower sides of the baffle 44. By locking the two connecting blocks 42 together with screws, the two dustproof components 4 can be fixed together. At the same time, cover pieces 43 are fixed on the upper and lower sides of the through slot at the outer end of the baffle 44. The through slot on the baffle 44 is mainly used for the busbar to pass through. Since the cover piece 43 has a certain elasticity, the cover piece 43 can be rotated up and down slightly. The busbar can be clamped by the upper and lower cover pieces 43, and the through slot of the baffle 44 can be sealed. The shielding effect of the dustproof component 4 makes it difficult for external dust, insects and other debris to enter, thereby improving the protection of the busbar and reducing its failure rate.

[0043] Optionally, in some embodiments, see Figure 4-Figure 6 Both ends of the abutment block 61 are fixedly connected with a slider 64, and the abutment block 61 is slidably connected to the inner wall of the installation groove 7 through the slider 64. The outer end of the abutment block 61 is provided with an anti-slip groove.

[0044] The inclined surface of the driving block 63 is fixedly connected with a second sliding block 65 . The inclined surface of the abutting block 61 is provided with a sliding groove 66 . The second sliding block 65 is slidably connected with the sliding groove 66 .

[0045] The clamping assembly 6 also includes a bolt 62, and a threaded sleeve 67 that is compatible with the bolt 62 is fixed to the outer end of the driving block 63. The bottom end of the bolt 62 passes through the side wall of the splint 5 and extends to the inside of the mounting groove 7. The bottom end of the bolt 62 is rotatably connected to the bottom end of the inside of the mounting groove 7, and the bolt 62 is threadedly connected to the threaded sleeve 67.

[0046] The cam 62 is screwed to the bottom of the mounting groove 7 so that the cam 62 can be rotated to rotate with the cam 62. ...

[0047] When the abutment block 61 needs to be moved, first use a screwdriver to tighten the bolt 62 in the sleeve 1. The rotating bolt 62 will drive the threaded sleeve 67 to move. At this time, the driving block 63 driven by the threaded sleeve 67 will press the abutment block 61. Since the abutment block 61 is not only slidably connected to the driving block 63 through the slide groove 66 and the slider 2 65, but also slidably connected to the inner wall of the mounting groove 7 through the slider 1 64, the abutment block 61 will be squeezed and move outward. By adjusting the two abutment blocks 61 to move outward separately, the abutment block 61 can clamp the busbar. It is not only suitable for busbars of different specifications, but also can clamp them to prevent them from shaking and improve their stability.

[0048] Working principle: When using this device, you first need to fix the partition 2 to the side wall of the electrical cabinet with bolts, and then pass the busbar through the through hole 8 opened on the partition 2. At this time, you can adjust the clamping assembly 6 to clamp it, and use a screwdriver to tighten the bolt 62. The rotating bolt 62 will drive the driving block 63 to move, and the driving block 63 will press the abutment block 61, and then the abutment block 61 will move outward. By adjusting the two abutment blocks 61 to move outward respectively, the abutment block 61 can clamp the busbar, and then you need to install the dustproof assembly 4 on the outer end of the sleeve 1, wrap the clamping ring 41 around the outermost insulating ring, and then install another dustproof assembly 4 on one side. Lock the two connecting blocks 42 together with screws, so that the two dustproof assemblies 4 can be fixed together. Since the cover piece 43 has a certain elasticity, the two cover pieces 43 can clamp the busbar and seal the baffle 44 slot, so that external dust, insects and other debris are not easy to enter.

[0049] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A high-voltage electrical box wall bushing, comprising a partition (2) and two bushings (1), characterized in that: The two sleeves (1) are fixedly mounted on both sides of the partition (2), respectively. The partition (2) and the two sleeves (1) are integrally cast. A through hole (8) is provided at the outer end of the partition (2). Two symmetrically distributed clamping plates (5) are fixedly connected to the inner side of the through hole (8). A mounting groove (7) is provided inside the clamping plate (5). A clamping assembly (6) is provided inside the mounting groove (7). Two dustproof assemblies (4) are provided at one end of the sleeve (1) away from the partition (2). The clamping assembly (6) comprises an abutment block (61) and a driving block (63), wherein the driving block (63) and the abutment block (61) are both arranged in a right triangle, and the inclined surfaces of the abutment block (61) and the driving block (63) abut against each other.

2. The high-voltage electrical box wall bushing according to claim 1, characterized in that: The outer end of the sleeve (1) is fixedly connected to a plurality of insulating rings distributed at equal intervals. The partition (2) and the two sleeves (1) are both made of epoxy resin. The outer end of the partition (2) is provided with a plurality of bolt holes (3).

3. The high-voltage electrical box wall bushing according to claim 2, characterized in that: The dustproof component (4) comprises a baffle (44), the outer end of the baffle (44) is fixedly connected to two cover plates (43), and the outer end of the baffle (44) is provided with a through groove.

4. The high-voltage electrical box wall bushing according to claim 3, characterized in that: The outer end of the baffle (44) is fixedly connected to a clamping ring (41), the clamping ring (41) is adapted to the insulating ring, and the outer end of the baffle (44) is fixedly connected to two connecting blocks (42).

5. The high-voltage electrical box wall bushing according to claim 1, characterized in that: Both ends of the abutment block (61) are fixedly connected with a slider 1 (64), the abutment block (61) is slidably connected to the inner wall of the installation groove (7) through the slider 1 (64), and the outer end of the abutment block (61) is provided with an anti-slip groove.

6. The high-voltage electrical box wall bushing according to claim 5, characterized in that: The inclined surface of the driving block (63) is fixedly connected with a second slider (65), the inclined surface of the abutting block (61) is provided with a sliding groove (66), and the second slider (65) is slidably connected to the sliding groove (66).

7. The high-voltage electrical box wall bushing according to claim 6, characterized in that: The clamping assembly (6) further comprises a bolt (62), a threaded sleeve (67) adapted to the bolt (62) being fixed to the outer end of the driving block (63), the bottom end of the bolt (62) passing through the side wall of the clamping plate (5) and extending to the interior of the mounting groove (7), and the bottom end of the bolt (62) is rotatably connected to the bottom end of the interior of the mounting groove (7), and the bolt (62) is threadedly connected to the threaded sleeve (67).

Images