Power transmission line tensioning porcelain insulator

Abstract

The utility model relates to the technical field of porcelain insulators, and provides a transmission line tensioning porcelain insulator, which comprises a plurality of porcelain insulator bodies, connecting rods fixedly mounted on inner rings of the porcelain insulator bodies, and mounting blocks fixedly mounted at one ends, far away from the porcelain insulator bodies, of the connecting rods, a mounting hole is formed in one end, away from the connecting rod, of the mounting block; the fixed frame is fixedly mounted on the inner wall of the mounting hole, and a movable frame is slidably mounted on the inner wall of the mounting hole; the threaded rod is fixedly installed at the end, away from the fixed frame, of the movable frame, and a threaded sleeve is installed on the outer surface of the threaded rod in a threaded mode; during use, the threaded rod moves to drive the movable frame to slide on the inner wall of the fixed frame and clamp and fix an external cable, so that the stability of fixing the porcelain insulator body and the connecting rod on the external cable is improved, the load of a worker is reduced, the working process of the worker is simplified, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of porcelain insulators, in particular to a tension porcelain insulator for a power transmission line. Background Art

[0002] Transmission line tensioning porcelain insulators, also known as suspension porcelain insulators, are one of the key components in high-voltage transmission lines of power systems. They are mainly used to support conductors and maintain sufficient electrical insulation distance, while bearing the tension from the conductors to ensure that current does not leak to the tower or the ground during power transmission.

[0003] However, the prior art has the following disadvantages when used: the existing transmission line tensioning porcelain insulators require a number of auxiliary tools such as wrenches, bolts, nuts and fasteners to cooperate with the installation work, which is not conducive to reducing the weight of the workers and simplifying the work process of the workers, thereby improving work efficiency. In addition, the overall length of the existing transmission line tensioning porcelain insulators is fixed, resulting in the need to carry a variety of transmission line tensioning porcelain insulators of different specifications during installation, which is not conducive to reducing the labor intensity of the workers. Therefore, a transmission line tensioning porcelain insulator is urgently needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that the existing transmission line tensioning porcelain insulators need to carry many auxiliary tools such as wrenches, bolts, nuts and fasteners to cooperate with the installation work, which is not conducive to reducing the weight of the workers and simplifying the work process of the workers, and improving the work efficiency. In addition, the overall length of the existing transmission line tensioning porcelain insulators is fixed, resulting in the need to carry a variety of transmission line tensioning porcelain insulators of different specifications during installation, which is not conducive to reducing the labor intensity of the workers.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a transmission line tension porcelain insulator, comprising: a plurality of porcelain insulator bodies, the inner rings of the plurality of porcelain insulator bodies are all fixedly mounted with connecting rods, and also comprising:

[0006] A mounting block is fixedly mounted on an end of the connecting rod away from the porcelain insulator body, and a mounting hole is formed on the end of the mounting block away from the connecting rod;

[0007] A fixed frame, fixedly mounted on the inner wall of the mounting hole, and a movable frame is slidably mounted on the inner wall of the mounting hole;

[0008] A threaded rod is fixedly mounted on one end of the movable frame away from the fixed frame, and a threaded sleeve is threadedly mounted on the outer surface of the threaded rod;

[0009] A worm wheel and a fixed sleeve are arranged on the outer surface of the threaded sleeve, and a worm is meshedly connected to the outer surface of the worm wheel.

[0010] Preferably, one end of the movable frame away from the threaded rod is slidably connected to the inner wall of the fixed frame, and one end of the threaded sleeve away from the worm gear is rotatably mounted on one end of the mounting block.

[0011] The technical effect of adopting the above further scheme is: one end of the fixed frame is hung on the external cable, and the staff rotates the control block to drive the worm to rotate. When the worm rotates, it drives the worm wheel to rotate inside the through hole. When the worm wheel rotates, it drives the threaded sleeve at one end of the mounting block to rotate. When the threaded sleeve rotates, it drives the threaded rod fixed on the movable frame to move toward the fixed frame. When the threaded rod moves, it drives the movable frame to slide on the inner wall of the fixed frame, clamping and fixing the external cable, which is convenient for improving the stability of the porcelain insulator body and the connecting rod fixed on the external cable, which is beneficial to reduce the weight of the staff and simplify the working process of the staff, and improve work efficiency. The setting of the mounting hole is convenient for storing the movable frame, and at the same time limits the movable frame to move vertically but not rotate.

[0012] Preferably, a through hole is formed on the inner wall of the connecting rod, and the threaded rod is located inside the through hole.

[0013] The technical effect of adopting the above further solution is that the provision of the through hole facilitates the storage of the threaded rod and the sliding column.

[0014] Preferably, the two ends of the worm gear are rotatably mounted on one end of the mounting block away from the worm wheel, and the end of the worm gear that passes through the connecting rod to the outside is fixedly mounted with a control block.

[0015] The technical effect of adopting the above further solution is that the two ends of the worm are rotatably mounted on the mounting block, which is convenient for improving the stability of the worm during rotation, and when the control block is rotated forward and backward, the worm can be driven to rotate forward and backward.

[0016] Preferably, a sliding column is slidably mounted on one end of the through hole away from the mounting block, and a steel foot is fixedly mounted on one end of the sliding column located outside the through hole.

[0017] The technical effect of adopting the above further scheme is: the steel foot is fixed at one end of the sliding column to enhance the stability between the two, and the sliding column slides in the through hole so that the sliding column can be retracted into the through hole or extended from the through hole, which is convenient for shortening the overall length of the utility model or extending the overall length of the utility model.

[0018] Preferably, a plurality of limiting holes are formed on the outer surface of the sliding column, and a through hole is formed at one end of the connecting rod close to the steel foot.

[0019] The technical effect of adopting the above further solution is that the limiting hole on the sliding column is convenient for one end of the limiting rod to enter the limiting hole, thereby limiting the sliding column.

[0020] Preferably, an elastic member is fixedly mounted on the inner wall of the through hole, and a round block is fixedly mounted on the other end of the elastic member.

[0021] The technical effect of adopting the above further solution is that the elastic member fixed on the inner wall of the through hole is stretched when the round block moves.

[0022] Preferably, a limiting rod is fixedly mounted on one end of the round block close to the elastic member, and an end of the limiting rod away from the round block is slidably connected to the inner wall of the limiting hole.

[0023] The technical effect of adopting the above further solution is that when the staff pulls the round block, the limit rod will be driven to move, and when the limit rod moves, it will retract from the limit hole of the sliding column into the through hole.

[0024] Compared with the prior art, the advantages and positive effects of the utility model are:

[0025] 1. In the utility model, when in use, the threaded rod moves to drive the movable frame to slide on the inner wall of the fixed frame, clamping and fixing the external cable, which is convenient for improving the stability of the porcelain insulator body and the connecting rod fixed to the external cable, which is beneficial to reducing the weight of the staff and simplifying the working process of the staff, and improving the work efficiency.

[0026] 2. In the utility model, when in use, the limit rod retracts from the limit hole of the sliding column into the through hole when moving, so that the limit rod no longer rotates the sliding column and the limit hole, and it is convenient for the staff to pull the steel foot to the external circuit frame, which is beneficial to extend the overall length of the utility model, improve the scope of application, avoid the need to carry a variety of transmission line tensioning porcelain insulators of different specifications during installation, and help reduce the labor intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the three-dimensional structure of a tension porcelain insulator for a power transmission line provided by the utility model;

[0028] Figure 2 A schematic diagram of a cross-sectional three-dimensional structure of a tension porcelain insulator for a power transmission line provided by the utility model;

[0029] Figure 3 A transmission line tension porcelain insulator provided by the utility model Figure 2 A magnified image of point A;

[0030] Figure 4 A transmission line tension porcelain insulator provided by the utility model Figure 2Enlarged view of point B.

[0031] Legend: 1. Porcelain insulator body; 101. Connecting rod; 102. Through hole; 103. Through hole; 2. Mounting block; 3. Fixed frame; 4. Mounting hole; 5. Movable frame; 501. Threaded rod; 502. Threaded sleeve; 503. Worm gear; 504. Worm; 6. Round block; 601. Elastic part; 602. Limit rod; 7. Sliding column; 8. Limit hole; 9. Control block; 10. Steel foot. DETAILED DESCRIPTION

[0032] 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.

[0033] 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.

[0034] Embodiment 1, as Figure 1 - Figure 4 As shown, the utility model provides a transmission line tension porcelain insulator, comprising: a plurality of porcelain insulator bodies 1, the inner rings of the plurality of porcelain insulator bodies 1 are all fixedly mounted with connecting rods 101, and further comprising:

[0035] A mounting block 2 is fixedly mounted on an end of the connecting rod 101 away from the porcelain insulator body 1, and a mounting hole 4 is formed on the end of the mounting block 2 away from the connecting rod 101;

[0036] A fixed frame 3 is fixedly mounted on the inner wall of the mounting hole 4, and a movable frame 5 is slidably mounted on the inner wall of the mounting hole 4;

[0037] The threaded rod 501 is fixedly mounted on one end of the movable frame 5 away from the fixed frame 3, and a threaded sleeve 502 is threadedly mounted on the outer surface of the threaded rod 501;

[0038] The worm wheel 503 is fixedly sleeved on the outer surface of the threaded sleeve 502 , and the outer surface of the worm wheel 503 is meshedly connected with the worm 504 .

[0039] When the worm 504 rotates, the worm wheel 503 is driven to rotate inside the through hole 102. When the worm wheel 503 rotates, the threaded sleeve 502 is driven to rotate at one end of the mounting block 2. When the threaded sleeve 502 rotates, it drives the threaded rod 501 fixed on the movable frame 5 to move toward the fixed frame 3. When the threaded rod 501 moves, it drives the movable frame 5 to slide on the inner wall of the fixed frame 3, and clamps and fixes the external cable, which is convenient for improving the stability of the porcelain insulator body 1 and the connecting rod 101 fixed to the external cable, which is beneficial to reducing the weight of the staff and simplifying the working process of the staff, and improving the working efficiency. The setting of the mounting hole 4 is convenient for storing the movable frame 5, and at the same time limits the movable frame 5 to move vertically but not rotate.

[0040] Embodiment 2, as Figure 1 - Figure 4 As shown, the end of the movable frame 5 away from the threaded rod 501 is slidably connected to the inner wall of the fixed frame 3, the end of the threaded sleeve 502 away from the worm gear 503 is rotatably installed at one end of the mounting block 2, the inner wall of the connecting rod 101 is provided with a through hole 102, the threaded rod 501 is located inside the through hole 102, the two ends of the worm 504 away from the worm gear 503 are rotatably installed at one end of the mounting block 2, the worm 504 passes through the connecting rod 101 to the outside and is fixedly installed with the control block 9, and the end of the through hole 102 away from the mounting block 2 is slidably installed A sliding column 7 is installed, and a steel foot 10 is fixedly installed on one end of the sliding column 7 located outside the through hole 102. A plurality of limiting holes 8 are provided on the outer surface of the sliding column 7. A through hole 103 is provided on the end of the connecting rod 101 close to the steel foot 10. An elastic member 601 is fixedly installed on the inner wall of the through hole 103, and a round block 6 is fixedly installed on the other end of the elastic member 601. A limiting rod 602 is fixedly installed on one end of the round block 6 close to the elastic member 601, and the end of the limiting rod 602 away from the round block 6 is slidably connected to the inner wall of the limiting hole 8.

[0041] In this embodiment, when in use, after the porcelain insulator body 1 and the connecting rod 101 are fixed to the external cable, the staff pulls the round block 6 to drive the limiting rod 602 to move. At the same time, when the round block 6 moves, the elastic member 601 fixed on the inner wall of the through hole 103 is stretched. When the limiting rod 602 moves, it retracts from the limiting hole 8 of the sliding column 7 into the through hole 103, so that the limiting rod 602 no longer rotates the sliding column 7 and the limiting hole 8, so that the staff can pull the steel foot 10 to the external circuit frame, and then release the round block 6. Under the action of the elastic member 601, the limiting rod 602 enters the limiting hole 8 again to restrict the sliding column 7, so as to improve the stability of the sliding column 7, the steel foot 10 and the connecting rod 101, which is conducive to extending the overall length of the utility model, improving the scope of application, avoiding the need to carry a variety of transmission line tensioning porcelain insulators of different specifications during installation, and helping to reduce the labor intensity of the staff.

[0042] Working principle: When in use, one end of the fixed frame 3 is hung on the external cable, and the staff rotates the control block 9 to drive the worm 504 to rotate. When the worm 504 rotates, it drives the worm wheel 503 to rotate inside the through hole 102. When the worm wheel 503 rotates, it drives the threaded sleeve 502 to rotate at one end of the mounting block 2. When the threaded sleeve 502 rotates, it drives the threaded rod 501 fixed on the movable frame 5 to move toward the fixed frame 3. When the threaded rod 501 moves, it drives the movable frame 5 to slide on the inner wall of the fixed frame 3, clamping and fixing the external cable, which is convenient for improving the stability of the porcelain insulator body 1 and the connecting rod 101 fixed to the external cable, which is beneficial to reduce the weight of the staff and simplify the work process of the staff, and improve the work efficiency. The setting of the mounting hole 4 is convenient for storing the movable frame 5, and at the same time limits the movable frame 5 to only move vertically and cannot rotate. When in use After the porcelain insulator body 1 and the connecting rod 101 are fixed to the external cable, the staff pulls the round block 6 to drive the limit rod 602 to move. At the same time, when the round block 6 moves, the elastic member 601 fixed on the inner wall of the through hole 103 is stretched. When the limit rod 602 moves, it retracts from the limit hole 8 of the sliding column 7 into the through hole 103, so that the limit rod 602 no longer rotates the sliding column 7 and the limit hole 8, so that the staff can pull the steel foot 10 to the external circuit frame. Then, the round block 6 is released and the limit rod 602 enters the limit hole 8 again under the action of the elastic member 601 to restrict the sliding column 7, so as to improve the stability of the sliding column 7, the steel foot 10 and the connecting rod 101, which is conducive to extending the overall length of the utility model, improving the scope of application, avoiding the need to carry a variety of transmission line tension porcelain insulators of different specifications during installation, and helping to reduce the labor intensity of the staff.

[0043] 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 transmission line tension porcelain insulator, comprising a plurality of porcelain insulator bodies (1), wherein the inner rings of the plurality of porcelain insulator bodies (1) are all fixedly mounted with connecting rods (101), characterized in that: Also includes: A mounting block (2) is fixedly mounted on an end of the connecting rod (101) away from the porcelain insulator body (1), and a mounting hole (4) is formed on the end of the mounting block (2) away from the connecting rod (101); A fixed frame (3) is fixedly mounted on the inner wall of the mounting hole (4), and a movable frame (5) is slidably mounted on the inner wall of the mounting hole (4); A threaded rod (501) is fixedly mounted on one end of the movable frame (5) away from the fixed frame (3), and a threaded sleeve (502) is threadedly mounted on the outer surface of the threaded rod (501); The worm wheel (503) is fixedly sleeved on the outer surface of the threaded sleeve (502), and the outer surface of the worm wheel (503) is meshingly connected with the worm (504).

2. A transmission line tension porcelain insulator according to claim 1, characterized in that: One end of the movable frame (5) away from the threaded rod (501) is slidably connected to the inner wall of the fixed frame (3), and one end of the threaded sleeve (502) away from the worm gear (503) is rotatably mounted on one end of the mounting block (2).

3. A transmission line tension porcelain insulator according to claim 2, characterized in that: A through hole (102) is formed on the inner wall of the connecting rod (101), and the threaded rod (501) is located inside the through hole (102).

4. A transmission line tension porcelain insulator according to claim 3, characterized in that: The two ends of the worm (504) are rotatably mounted on one end of the mounting block (2) away from the worm wheel (503), and the worm (504) passes through the connecting rod (101) to the outside where a control block (9) is fixedly mounted.

5. A transmission line tension porcelain insulator according to claim 4, characterized in that: A sliding column (7) is slidably mounted on one end of the through hole (102) away from the mounting block (2), and a steel foot (10) is fixedly mounted on one end of the sliding column (7) located outside the through hole (102).

6. A transmission line tension porcelain insulator according to claim 5, characterized in that: The outer surface of the sliding column (7) is provided with a plurality of limiting holes (8), and the end of the connecting rod (101) close to the steel foot (10) is provided with a through hole (103).

7. A transmission line tension porcelain insulator according to claim 6, characterized in that: An elastic member (601) is fixedly mounted on the inner wall of the through hole (103), and a round block (6) is fixedly mounted on the other end of the elastic member (601).

8. A transmission line tension porcelain insulator according to claim 7, characterized in that: A limiting rod (602) is fixedly mounted on one end of the round block (6) close to the elastic member (601), and an end of the limiting rod (602) away from the round block (6) is slidably connected to the inner wall of the limiting hole (8).

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