Line post insulator porcelain bushing

Abstract

The utility model relates to the technical field of insulator porcelain bushings, and provides a line post insulator porcelain bushing, which comprises a mounting tube, two elastic pieces, a fixing block and a fixing block, the fixing block is fixedly mounted at one end of the mounting tube, and the two elastic pieces are fixedly mounted on the inner wall, far away from the fixing block, of the mounting tube. An extension rod is fixedly mounted at one end, far away from the fixed block, of one elastic piece; the mounting block is fixedly mounted at the end, located outside the mounting pipe, of the extension rod, and a plurality of limiting holes are formed in the outer surface of the extension rod; during use, the limiting block does not limit the extension rod any more when the limiting block is not located on the inner wall of the limiting hole, the extension rod is pushed outwards from the interior of the installation pipe under the action of the elastic piece, the installation block is driven to move when the extension rod moves, and the extension rod is driven to move. The distance between the fixing block and the mounting block is convenient to adjust, the device is suitable for the distances between different line frames and cables, and the application range is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of insulator porcelain sleeves, in particular to a line support insulator porcelain sleeve. Background Art

[0002] Insulator porcelain sleeve is an important insulating component in high-voltage power lines and electrical equipment in the power system. Its main function is to provide electrical insulation, prevent current leakage, and ensure that power equipment and lines work safely and stably under high-voltage operating conditions.

[0003] In the prior art, such as the Chinese patent number: CN218482025U, the utility model relates to the field of insulator technology, and discloses a line post insulator porcelain sleeve, including a porcelain sleeve, the inner wall of the porcelain sleeve is threaded, and both ends are open, and are provided with: the installation mechanism includes: bolt one is threadedly connected to the top of the inner wall of the porcelain sleeve, the bottom of the outer wall of the U-shaped lower clamp is fixedly connected to the top of the bolt one, the right ear end of the U-shaped upper clamp is hinged to the right ear end of the U-shaped lower clamp through a hinge, the buckle is fixedly installed on the left side of the outer wall of the U-shaped lower clamp, the slot is fixedly installed on the left side of the outer wall of the U-shaped upper clamp, the bottom end of the screw rod one is threaded downward through the U-shaped upper clamp, and the top of the screw rod one is fixedly installed with a hand wheel. By rotating bolt one and bolt two, the U-shaped lower clamp and the steel foot are disassembled, and the porcelain sleeve is convenient for installation and disassembly between the hardware and the steel foot, providing convenient use.

[0004] However, the above technology will have the following disadvantages when used: the distance between the U-shaped lower clamping plate and the steel foot in the above technology is fixed. When the distance between the line frame and the cable is greater than the distance between the U-shaped lower clamping plate and the steel foot in the above technology, when the steel foot is placed on the line frame, the cable cannot be placed in the U-shaped lower clamping plate, resulting in a smaller scope of application of the above technology. In addition, the clamping and fixing work of the cable by the above technology is relatively complicated, which is not conducive to simplifying the working process and improving work efficiency. Therefore, a line support insulator porcelain sleeve is urgently needed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that the distance between the U-shaped lower clamping plate and the steel foot is fixed in the above-mentioned technology. When the distance between the line rack and the cable is greater than the distance between the U-shaped lower clamping plate and the steel foot in the above-mentioned technology, when the steel foot is placed on the line rack, the cable cannot be placed in the U-shaped lower clamping plate, resulting in a smaller scope of application of the above-mentioned technology. In addition, the above-mentioned technology is relatively complicated in clamping and fixing the cable, which is not conducive to simplifying the working process and improving work efficiency.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a line post insulator porcelain sleeve, comprising: a mounting tube, one end of which is fixedly mounted with a fixing block, and further comprising:

[0007] Two elastic members are fixedly mounted on the inner wall of the mounting tube away from the fixing block, wherein an extension rod is fixedly mounted on one end of one of the elastic members away from the fixing block;

[0008] A mounting block fixedly mounted on one end of the extension rod located outside the mounting tube, wherein a plurality of limiting holes are formed on the outer surface of the extension rod;

[0009] An installation cavity is provided at one end of the installation tube close to the limiting hole, and a sliding frame is slidably installed on the inner wall of the installation cavity;

[0010] Two limit blocks are respectively fixedly mounted on the two ends of the sliding frame located inside the mounting cavity, and one end of one of the limit blocks away from the sliding frame is slidably connected to the inner wall of the limit hole.

[0011] Preferably, two springs 1 are fixedly mounted on one side of the sliding frame away from the limiting block, and the other ends of the two springs 1 are fixedly mounted on the inner wall of the mounting cavity.

[0012] The technical effect of adopting the above-mentioned further scheme is: the staff pulls the sliding frame to drive the two limit blocks to slide in the installation cavity, and the sliding frame compresses the two springs when moving. When the two limit blocks move, one end thereof retracts from the limit hole, and when the limit block is not on the inner wall of the limit hole, the limit block no longer restricts the extension rod. Under the action of the elastic part, the extension rod is pushed out from the inside of the installation tube to the outside, and when the extension rod moves, it drives the installation block to move, which is convenient for adjusting the distance between the fixed block and the installation block, is conducive to adapting to the distance between different line racks and cables, and improves the scope of application.

[0013] Preferably, the telescopic rod is fixedly mounted on one end of the other elastic member away from the extension rod, and the end of the other limit block away from the spring is movably embedded in one end of the telescopic rod.

[0014] The technical effect of adopting the above further solution is that after the limit block moves with the sliding frame, one end of the limit block leaves the interior of one end of the telescopic rod, the limit block no longer restricts the telescopic rod, and the elastic member pushes the telescopic rod toward the fixed block.

[0015] Preferably, a plurality of limiting grooves are provided on the outer surface of the telescopic rod, and a clamping block is fixedly mounted on one end of the telescopic rod passing through the fixing block.

[0016] The technical effect of adopting the above further solution is that the movement of the telescopic rod drives the clamping block and the limit groove to move, and the clamping block moves toward the direction of the external cable.

[0017] Preferably, an insulating pad 1 is fixedly mounted on one end of the clamping block away from the telescopic rod, and an insulating pad 2 is fixedly mounted on one end of the fixing block away from the insulating pad 1.

[0018] The technical effect of adopting the above further solution is: when the clamping block moves, it drives the insulating pad 1 and the external cable to move towards the insulating pad 2, and finally cooperates with the top of the fixing block to clamp and fix the external cable.

[0019] Preferably, a limiting plate is rotatably mounted on one end of the fixing block close to the second insulating pad, and one end of the limiting plate away from the second insulating pad contacts the outer surface of the fixing block.

[0020] The technical effect of adopting the above-mentioned further scheme is: after the staff presses the limit plate against the external cable, the fixed block continues to move toward the cable direction, and the limit plate is squeezed by the external cable and moves toward the inside of the fixed block. When the limit plate is no longer squeezed by the external cable, it returns to its original position, and the limit plate can only move in one direction toward the inside of the fixed block.

[0021] Preferably, a limit hook is rotatably mounted on one end of the mounting tube close to the fixing block, and two springs are fixedly mounted on one end of the limit hook close to the mounting tube.

[0022] The technical effect of adopting the above further solution is: Spring 2 pulls one end of the limit hook toward the limit slot, so that one end of the limit hook is against the inner wall of the limit slot.

[0023] Preferably, the opposite ends of the two springs 2 are fixedly mounted on one end of a mounting tube, and an insulator body is fixedly sleeved on the outer surface of the mounting tube away from the sliding frame.

[0024] The technical effect of adopting the above further solution is that a plurality of insulator bodies are fixed on the mounting tube, which facilitates the workers to perform creepage insulation operations.

[0025] Compared with the prior art, the advantages and positive effects of the utility model are:

[0026] 1. In the utility model, when in use, when the limit block is not on the inner wall of the limit hole, the limit block no longer restricts the extension rod. Under the action of the elastic member, the extension rod is pushed out from the inside of the installation tube to the outside. When the extension rod moves, it drives the installation block to move, which is convenient for adjusting the distance between the fixed block and the installation block, is conducive to adapting to the distance between different line racks and cables, and improves the scope of application.

[0027] 2. In the utility model, when in use, the clamping block drives the insulating pad 1 and the external cable to move toward the insulating pad 2 when it moves, and finally cooperates with the top of the fixing block to clamp and fix the external cable. One end of the limiting hook abuts against the inner wall of the limiting groove, which is convenient for preventing the telescopic rod from retracting into the inside of the installation tube, enhancing the stability of the clamping block and the insulating pad on the external cable, which is conducive to simplifying the working process of clamping and fixing the external cable and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1A three-dimensional structural schematic diagram of a line support insulator porcelain sleeve provided by the utility model;

[0029] Figure 2 A schematic diagram of the cross-sectional three-dimensional structure of a line support insulator porcelain sleeve provided by the utility model;

[0030] Figure 3 A line support insulator porcelain sleeve provided by the utility model Figure 2 A magnified image of point A;

[0031] Figure 4 A line support insulator porcelain sleeve provided by the utility model Figure 2 Enlarged view of point B.

[0032] Legend: 1. Mounting tube; 101. Mounting cavity; 102. Sliding frame; 103. Limit block; 104. Spring 1; 105. Spring 2; 2. Fixing block; 3. Limit plate; 4. Insulating pad 2; 5. Clamping block; 6. Insulating pad 1; 7. Telescopic rod; 701. Limit groove; 8. Elastic part; 801. Extension rod; 802. Limit hole; 803. Mounting block; 9. Limit hook; 10. Insulator body. DETAILED DESCRIPTION

[0033] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0035] Embodiment 1, as Figure 1 - Figure 4 As shown, the utility model provides a line support insulator porcelain sleeve, including: a mounting tube 1, one end of which is fixedly mounted with a fixing block 2, and also includes:

[0036] Two elastic members 8 are fixedly mounted on the inner wall of the mounting tube 1 away from the fixing block 2, wherein an extension rod 801 is fixedly mounted on one end of one of the elastic members 8 away from the fixing block 2;

[0037] The mounting block 803 is fixedly mounted on one end of the extension rod 801 located outside the mounting tube 1. The outer surface of the extension rod 801 is provided with a plurality of limiting holes 802;

[0038] The installation cavity 101 is provided at one end of the installation tube 1 close to the limiting hole 802, and a sliding frame 102 is slidably installed on the inner wall of the installation cavity 101;

[0039] The two limiting blocks 103 are respectively fixedly mounted at two ends of the sliding frame 102 located inside the installation cavity 101 , and one end of one of the limiting blocks 103 away from the sliding frame 102 is slidably connected to the inner wall of the limiting hole 802 .

[0040] In this embodiment, when in use, the staff pulls the sliding frame 102 to drive the two limit blocks 103 to slide in the installation cavity 101. When the sliding frame 102 moves, the two springs 104 are compressed. When the two limit blocks 103 move, one end thereof retracts from the limit hole 802. When the limit block 103 is not on the inner wall of the limit hole 802, the limit block 103 no longer restricts the extension rod 801. Under the action of the elastic member 8, the extension rod 801 is pushed out from the inside of the installation tube 1 to the outside. When the extension rod 801 moves, it drives the installation block 803 to move, which is convenient for adjusting the distance between the fixed block 2 and the installation block 803, is conducive to adapting to the distance between different line racks and cables, and improves the scope of application.

[0041] Embodiment 2, as Figure 1 - Figure 4 As shown, two springs 104 are fixedly installed on one side of the sliding frame 102 away from the limit block 103, and the other ends of the two springs 104 are fixedly installed on the inner wall of the installation cavity 101. The end of another elastic member 8 away from the extension rod 801 is fixedly installed with a telescopic rod 7, and the end of another limit block 103 away from the spring 104 is movably embedded in one end of the telescopic rod 7. A plurality of limit grooves 701 are provided on the outer surface of the telescopic rod 7. A clamping block 5 is fixedly installed on one end of the telescopic rod 7 that passes through the fixed block 2, and an insulating Pad 1 6, an insulating pad 2 4 is fixedly installed on the end of the fixed block 2 away from the insulating pad 1 6, a limiting plate 3 is rotatably installed on the end of the fixed block 2 close to the insulating pad 2 4, and the end of the limiting plate 3 away from the insulating pad 2 4 contacts the outer surface of the fixed block 2, a limiting hook 9 is rotatably installed on the end of the mounting tube 1 close to the fixed block 2, and two springs 2 105 are fixedly installed on the end of the limiting hook 9 close to the mounting tube 1, and the opposite ends of the two springs 2 105 are fixedly installed on one end of the mounting tube 1, and an insulator body 10 is fixedly sleeved on the outer surface of the mounting tube 1 away from the sliding frame 102.

[0042] In the present embodiment, when in use, after the staff member presses the limit plate 3 against the external cable, the fixed block 2 continues to move in the direction of the cable, and the limit plate 3 is squeezed by the external cable to move into the fixed block 2. When the external cable enters the fixed block 2, the insulating pad 6 at one end of the fixed block 2 is fitted against the external cable. The limit plate 3 returns to its original position when it is not squeezed by the external cable, and the limit plate 3 can only move unidirectionally into the fixed block 2. After the limit block 103 moves with the sliding frame 102, one end of the limit block 103 leaves the interior of one end of the telescopic rod 7. The limit block 103 no longer restricts the telescopic rod 7, and the elastic member 8 pushes the telescopic rod 7 toward the fixed block 2. The movement of the telescopic rod 7 drives the clamping block 5 to move, and the movement of the clamping block 5 drives the insulating The pad 1 6 and the external cable move toward the insulating pad 2 4, and finally cooperate with the top of the fixing block 2 to clamp and fix the external cable. When the telescopic rod 7 moves, it drives the limit slot 701 to move. When the limit slot 701 moves, it drives the limit hook 9 to rotate at one end of the mounting tube 1. The spring 2 105 pulls one end of the limit hook 9 toward the limit slot 701, so that one end of the limit hook 9 is against the inner wall of the limit slot 701, which is convenient for preventing the telescopic rod 7 from retracting into the interior of the mounting tube 1, enhancing the stability of the clamping block 5 and the insulating pad 1 6 in clamping the external cable, which is beneficial to simplifying the working process of clamping and fixing the external cable and improving work efficiency. Multiple insulator bodies 10 are fixed on the mounting tube 1, which is convenient for the staff to perform creepage insulation operations.

[0043] Working principle: When in use, the staff pulls the sliding frame 102 to drive the two limit blocks 103 to slide in the installation cavity 101. When the sliding frame 102 moves, it compresses the two springs 104. When the two limit blocks 103 move, one end of each limit block 103 retracts from the limit hole 802. When the limit block 103 is not on the inner wall of the limit hole 802, the limit block 103 no longer restricts the extension rod 801. Under the action of the elastic member 8, the extension rod 801 is pushed out from the inside of the installation tube 1 to the outside. When the extension rod 801 moves, it drives the installation block 803 It is convenient to move the fixing block 2 and the installation block 803 to adjust the distance between the fixing block 2 and the installation block 803, which is conducive to adapting to the distance between different line racks and cables and improving the scope of application. When in use, after the staff puts the limiting plate 3 against the external cable, the fixing block 2 continues to move in the direction of the cable, and the limiting plate 3 is squeezed by the external cable to move inside the fixing block 2. When the external cable enters the inside of the fixing block 2, the insulating pad 6 at one end of the fixing block 2 is pressed against the external cable. When the limiting plate 3 is not squeezed by the external cable, it returns to its original position, and the limiting plate 3 can only move toward the fixing block 2. The inner part of block 2 performs unidirectional movement, and the limit block 103 follows the movement of the sliding frame 102, and one end of the limit block 103 leaves the inner part of one end of the telescopic rod 7. The limit block 103 no longer restricts the telescopic rod 7, and the elastic member 8 pushes the telescopic rod 7 toward the fixed block 2. When the telescopic rod 7 moves, the clamping block 5 is driven to move. When the clamping block 5 moves, it drives the insulating pad 1 6 and the external cable to move toward the insulating pad 2 4, and finally cooperates with the top of the fixed block 2 to clamp and fix the external cable. When the telescopic rod 7 moves, it drives the limit slot 701 to move, and the limit When the groove 701 moves, it drives the limiting hook 9 to rotate at one end of the mounting tube 1, and the spring 105 pulls one end of the limiting hook 9 toward the limiting groove 701, so that one end of the limiting hook 9 is against the inner wall of the limiting groove 701, which is convenient for preventing the telescopic rod 7 from retracting into the interior of the mounting tube 1, enhancing the stability of the clamping block 5 and the insulating pad 6 in clamping the external cable, which is beneficial to simplifying the working process of clamping and fixing the external cable and improving work efficiency. Multiple insulator bodies 10 are fixed on the mounting tube 1, which is convenient for the staff to perform creepage insulation operations.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A line post insulator porcelain sleeve, comprising a mounting tube (1), one end of which is fixedly mounted with a fixing block (2), characterized in that: Also includes: Two elastic members (8) are fixedly mounted on the inner wall of the mounting tube (1) away from the fixing block (2), wherein an extension rod (801) is fixedly mounted on one end of one of the elastic members (8) away from the fixing block (2); A mounting block (803) fixedly mounted on one end of the extension rod (801) located outside the mounting tube (1), wherein a plurality of limiting holes (802) are formed on the outer surface of the extension rod (801); An installation cavity (101) is provided at one end of the installation tube (1) close to the limiting hole (802), and a sliding frame (102) is slidably mounted on the inner wall of the installation cavity (101); Two limit blocks (103) are respectively fixedly mounted on the two ends of the sliding frame (102) located inside the mounting cavity (101), wherein one end of the limit blocks (103) away from the sliding frame (102) is slidably connected to the inner wall of the limit hole (802).

2. A line post insulator porcelain sleeve according to claim 1, characterized in that: Two springs 1 (104) are fixedly mounted on one side of the sliding frame (102) away from the limiting block (103), and the other ends of the two springs 1 (104) are fixedly mounted on the inner wall of the mounting cavity (101).

3. A line post insulator porcelain sleeve according to claim 2, characterized in that: The telescopic rod (7) is fixedly mounted on one end of the other elastic member (8) away from the extension rod (801), and the end of the other limit block (103) away from the spring 1 (104) is movably embedded in one end of the telescopic rod (7).

4. A line post insulator porcelain sleeve according to claim 3, characterized in that: The outer surface of the telescopic rod (7) is provided with a plurality of limiting grooves (701), and one end of the telescopic rod (7) passing through the fixed block (2) is fixedly mounted with a clamping block (5).

5. The line post insulator porcelain sleeve according to claim 4, characterized in that: An insulating pad 1 (6) is fixedly mounted on one end of the clamping block (5) away from the telescopic rod (7), and an insulating pad 2 (4) is fixedly mounted on one end of the fixing block (2) away from the insulating pad 1 (6).

6. A line post insulator porcelain sleeve according to claim 5, characterized in that: A limiting plate (3) is rotatably mounted on one end of the fixing block (2) close to the second insulating pad (4), and one end of the limiting plate (3) away from the second insulating pad (4) contacts the outer surface of the fixing block (2).

7. The line post insulator porcelain sleeve according to claim 6, characterized in that: A limit hook (9) is rotatably mounted on one end of the installation tube (1) close to the fixed block (2), and two springs (105) are fixedly mounted on the limit hook (9) on one end close to the installation tube (1).

8. The line post insulator porcelain sleeve according to claim 7, characterized in that: The opposite ends of the two springs (105) are fixedly mounted on one end of a mounting tube (1), and an insulator body (10) is fixedly sleeved on the outer surface of the mounting tube (1) away from the sliding frame (102).

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