Power transmission line high-voltage insulator replacement support

Abstract

The utility model discloses a power transmission line high-voltage insulator replacement support, belongs to the technical field of power supply equipment, and particularly relates to a power transmission line high-voltage insulator replacement support which comprises an upper support, an electric control pressurization rod, a lower support and a reinforcing ring. The lower support is of a bent sheet structure and is located at the rear end of the electric control pressurization rod, and the reinforcing ring is of an annular cylindrical structure and is located at the rear portion of the lower support. The technical problem that an existing high-voltage insulator of a power transmission line is large in replacement strength and long in working time is solved, and the high-voltage insulator which is capable of stretching out and drawing back automatically, convenient to replace and high in practicability is provided. And the power transmission line high-voltage insulator replacement bracket is labor-saving, time-saving and high-efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of power supply equipment technology, specifically relating to a replacement bracket for high-voltage insulators of power transmission lines. Background Technology

[0002] High-voltage insulators are widely used in high-voltage transmission lines and substations, serving as electrical isolation and protection devices. They are insulating devices used in high-voltage and ultra-high-voltage overhead transmission lines and substations, isolating high-voltage current and preventing it from flowing to the ground, thus ensuring the safe operation of the power system. During use, the charge can generate corona discharge on the conductor, potentially causing sparks on the insulator surface and damaging it. Because insulators are heavy and subjected to pressure at both ends, replacing them is a very laborious task. Existing technology, "Cantilever Insulator Replacement Device" (authorized announcement number CN 220281175U), describes a cantilever insulator replacement device, including an adjusting rod, a first movable latch, a second movable latch, and a telescopic adjusting component. The adjusting rod is telescopic. The first end of the adjusting rod is connected to the cantilever arm via the first movable latch. The second end of the second movable latch adjusting rod is connected to the support post via the second movable latch, and the insulator is located between the first and second movable latches. The telescopic adjusting component is configured such that: by the user's retraction operation, the adjusting rod shortens, providing tension between the first and second movable latches to resist the tension received by the insulator; and by the user's extension operation, the adjusting rod extends, providing pressure between the first and second movable latches to resist the pressure received by the insulator. This device can replace insulators on flat and angled cantilever arms, improving replacement efficiency. However, this cantilever arm insulator replacement device still requires full manual operation. If the operator lacks strength, it is difficult to complete the replacement, resulting in excessive difficulty in insulator replacement and maintenance, affecting work efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a replacement bracket for high-voltage insulators of transmission lines, so as to solve the problems of high intensity and long working time in the replacement of high-voltage insulators of existing transmission lines.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-voltage insulator replacement bracket for transmission lines, comprising an upper bracket, an electrically controlled pressure rod, a lower bracket, and a reinforcing ring. The electrically controlled pressure rod is a columnar structure, the upper bracket is an annular plate-like structure located at the front end of the electrically controlled pressure rod, the lower bracket is a bent plate-like structure located at the rear end of the electrically controlled pressure rod, and the reinforcing ring is an annular columnar structure located at the rear of the lower bracket.

[0005] The electrically controlled pressure rod includes a push rod base, a push rod outer tube, a motor, a lead screw, a push rod piston, an electrical control panel, and a positioning aluminum tube. The push rod base is a columnar structure, the push rod outer tube is a tubular structure located at the rear of the push rod base, the motor is located inside the push rod outer tube, the lead screw is rod-shaped and connected to the motor, the push rod piston is a tubular structure partially nested inside the push rod outer tube, the lead screw is inserted into the hollow part of the push rod piston shaft, and the electrical control panel is located on the side of the electrically controlled pressure rod and connected to the positioning aluminum tube and the motor.

[0006] The positioning aluminum tube includes a sliding sleeve, a piston positioning screw, and a positioning optical shaft. The sliding sleeve is nested on the positioning aluminum tube and is located between the positioning aluminum tube and the positioning optical shaft. The piston positioning screw passes through the positioning optical shaft and connects the positioning optical shaft to the push rod piston.

[0007] The electronic control panel includes a power charging port, a power switch, a power display screen, and a three-position switch. The power charging port, power switch, power display screen, and three-position switch are connected to the motor via circuitry.

[0008] It also includes a sliding sleeve, a piston positioning screw, and a positioning optical axis. The sliding sleeve has a tubular structure, and the positioning optical axis has a cylindrical structure. The sliding sleeve is nested on the positioning aluminum tube and is located between the positioning aluminum tube and the positioning optical axis. The piston positioning screw passes through the positioning optical axis, so that the positioning optical axis is connected to the push rod piston.

[0009] It also includes a power supply. The electronic control panel includes a power charging port, a power switch, a power display screen, and a three-position switch. The power charging port, power switch, power display screen, and three-position switch are arranged on the electronic control panel. The power charging port, power switch, and power display screen are connected to the power supply, and the three-position switch is connected to the motor via an electrical signal. More preferably, the power supply, power switch, three-position switch, and motor are connected in series. The three-position switch is connected to the motor via an electrical signal. The three-position switch includes a jog extension switch, a default neutral position, and a jog retraction switch. By selecting the jog extension switch, the motor is powered on, controlling the motor to extend the electronically controlled pressure rod, tightening the equipment and replacing the force borne by the insulator, thus loosening the insulator for easy disassembly. After replacement, selecting the jog retraction switch controls the motor to rotate in reverse, shortening the electronically controlled pressure rod, applying force to the insulator, and loosening the high-voltage insulator replacement bracket of the transmission line, completing the replacement work.

[0010] The upper support includes an upper support connecting shaft, an upper support fixing plate, an upper support movable plate, an upper support fastening bolt, and an upper support movable bolt. The upper support connecting shaft is located at the top of the upper support, passes laterally through the front end of the pressure fixing rod, and fixes the upper support to the electrically controlled pressure rod. The upper support fixing plate is a semi-circular ring located below the upper support connecting shaft. The upper support movable plate is a semi-circular ring and is connected to the bottom of the upper support fixing plate by the upper support movable bolt. The upper support fastening bolt passes laterally through the top positions of the upper support fixing plate and the upper support movable plate and connects them together.

[0011] The lower bracket includes a lower bracket connecting piece, a lower bracket support piece, a lower bracket fixing piece, a lower bracket fixing screw hole, and a lower bracket fixing bolt. The lower bracket connecting piece is a double-layered sheet structure, and the lower bracket is connected to the electrically controlled pressure rod by the lower bracket fixing bolt that passes through laterally. The lower bracket support piece is a sheet structure located on the side of the lower bracket connecting piece, and there are two of them. The lower bracket fixing piece is a sheet structure located at the bottom of the lower bracket connecting piece and connected to the lower bracket support piece. The lower bracket fixing bolt is a columnar body that passes through the lower bracket connecting piece laterally. The lower bracket fixing screw hole is a through hole that passes through the lower bracket fixing bolt longitudinally, and there are two or more of them, preferably two.

[0012] The reinforcing ring includes a sleeve and a fastening valve. The reinforcing ring is a ring-shaped structure, and its two ends are fixed to the lower bracket by bolts passing through the fixing screw holes of the lower bracket. The fastening valve is located on the side of the sleeve.

[0013] The angle between the two lower support plates is 120°-140°, preferably 135°.

[0014] In use, the lower support plate rests against the insulator mounting column, the reinforcing ring is fitted onto the insulator mounting column, and the tightening valve is used for contraction and tightening. The upper support fixed plate and the upper support movable plate are fitted onto the front support of the insulator. Tighten the upper support movable bolt, start the electrical control panel, and the pressure fixed rod and pressure movable rod will extend laterally to release the pressure at both ends of the insulator. Remove the old insulator and replace it with a new insulator. Reverse the operation of the electrical control panel, and the front support of the insulator will fall back, and the insulator will enter the pressure-bearing state and work normally.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] Type 1 replaces insulators by transferring the pressure borne by the insulators to the high-voltage insulator replacement bracket of the transmission line. The insulators are replaced by an electrically controlled pressure rod, which is convenient to operate, saves time and effort, and is fast and accurate.

[0017] 2. The high-voltage insulator replacement bracket uses an electrically controlled pressure rod for automated tightening and loosening. Electricity can easily achieve a force that is difficult to achieve manually, saving operators a lot of physical effort. It eliminates the physical requirements for operators, greatly improving personnel efficiency and preventing operators from being unable to complete the replacement of high-voltage insulators on transmission lines due to insufficient strength. At the same time, it makes the replacement faster and more convenient. The insulator replacement can be completed with simple installation, saving a lot of operation time. Attached Figure Description

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

[0019] Figure 2This is a top view of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the main structure of the upper bracket of this utility model;

[0021] Figure 4 This is a side view of the upper support structure of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the upper support of this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the lower support of this utility model;

[0024] Figure 7 This is a top view of the lower support structure of this utility model;

[0025] Figure 8 This is a side view of the structure of the present invention in use.

[0026] Figure 9 This is a three-dimensional structural diagram of the present invention in use.

[0027] Figure 10 This is a schematic diagram of the electrically controlled pressure rod structure of this utility model;

[0028] Figure 11 Schematic diagram of the electronic control panel structure of this utility model;

[0029] Figure 12 This utility model presents a schematic diagram of the circuit structure of an electrically controlled pressure rod.

[0030] In the diagram: 1-Upper bracket, 2-Electrically controlled pressure rod, 3-Lower bracket, 4-Reinforcing ring, 7-Electrical control panel, 8-Upper bracket connecting shaft, 9-Upper bracket fixing plate, 10-Upper bracket movable plate, 11-Upper bracket fastening bolt, 12-Upper bracket movable bolt, 13-Lower bracket connecting plate, 14-Lower bracket support plate, 15-Lower bracket fixing plate, 19-Lower bracket fixing bolt, 16-Lower bracket fixing screw hole, 17-Sleeve, 18-Fastening valve, 5-Power charging port, 20-Power switch, 21-Power display screen, 22-Three-position switch, 23-Push rod base, 24-Push rod outer tube, 25-Motor, 26-Screw rod, 27-Push rod piston, 28-Positioning aluminum tube, 29-Sliding sleeve, 30-Piston positioning screw, 31-Positioning optical axis. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-12 This utility model provides a technical solution: a high-voltage insulator replacement bracket for transmission lines, comprising an upper bracket 1, an electrically controlled pressure rod 2, a lower bracket 3, and a reinforcing ring 4. The electrically controlled pressure rod is a columnar structure, the upper bracket is an annular plate structure located at the front end of the electrically controlled pressure rod, the lower bracket is a bent plate structure located at the rear end of the electrically controlled pressure rod, and the reinforcing ring is an annular columnar structure located at the rear of the lower bracket.

[0033] The electrically controlled pressure rod 2 includes a push rod base 23, a push rod outer tube 24, a motor 25, a lead screw 26, a push rod piston 27, an electrical control panel 7, and a positioning aluminum tube 28. The push rod base is a cylindrical structure, the push rod outer tube is a tubular structure located at the rear of the push rod base, the motor is located inside the push rod outer tube, the lead screw is rod-shaped and connected to the motor, and the push rod piston is a tubular structure partially nested inside the push rod outer tube 24. The lead screw is inserted into the hollow part of the push rod piston shaft. The electrical control panel is located on the side of the electrically controlled pressure rod and is connected to the positioning aluminum tube and the motor. It also includes a sliding sleeve 29 and a positioning optical shaft 31.

[0034] The motor is a bidirectional motor; it also includes a power supply, in this embodiment a rechargeable lithium battery is used as the power supply; the electronic control panel 7 includes a power charging port 5, a power switch 20, a power display screen 21, and a three-position switch 22. The power charging port, power switch, power display screen and power supply are connected to the power supply via electrical signals. The power supply, power switch, three-position switch and motor are connected in series. The three-position switch is connected to the motor via electrical signals. The three-position switch includes a jog extension switch, a default neutral position, and a jog retraction switch; by selecting the jog extension switch, the motor is powered on, the motor is controlled, the electronically controlled pressure rod extends, the equipment is tightened, replacing the force borne by the insulator, so that the insulator is loosened, making it easy to disassemble. After replacement, by selecting the jog retraction switch, the motor is controlled to rotate in the reverse direction, the electronically controlled pressure rod shortens, the insulator is stressed, the high-voltage insulator replacement bracket of the transmission line is loosened, and the replacement work is completed.

[0035] More specifically, pressing the switch turns on the power, selecting the three-position switch, the motor controls the lead screw to rotate, moving forward and backward, pushing the push rod piston 27 to move forward or backward; the positioning optical axis 31 positions the aluminum tube 28 to control the position of the push rod piston 27 so that it does not deviate.

[0036] The upper bracket 1 includes an upper bracket connecting shaft 8, an upper bracket fixing plate 9, an upper bracket movable plate 10, an upper bracket fastening bolt 11, and an upper bracket movable bolt 12. The upper bracket connecting shaft is located at the top of the upper bracket and passes laterally through the front end of the pressure fixing rod to fix the upper bracket to the electrically controlled pressure rod. The upper bracket fixing plate is a semi-circular ring located below the upper bracket connecting shaft. The upper bracket movable plate is also a semi-circular ring and is connected to the bottom of the upper bracket fixing plate by the upper bracket movable bolt. The upper bracket fastening bolt passes laterally through the top of the upper bracket fixing plate and the upper bracket movable plate and connects them together.

[0037] The lower bracket 3 includes a lower bracket connecting piece 13, a lower bracket support piece 14, a lower bracket fixing piece 15, a lower bracket fixing screw hole 16, and a lower bracket fixing bolt 19. The lower bracket connecting piece is a double-layered sheet structure, and the lower bracket is connected to the electrically controlled pressure rod by the lower bracket fixing bolt passing through laterally. The lower bracket support piece is a sheet structure, located on the side of the lower bracket connecting piece, and there are two of them. The lower bracket fixing piece is a sheet structure, located at the bottom of the lower bracket connecting piece, and connected to the lower bracket support piece. The lower bracket fixing bolt is a columnar body that passes through the lower bracket connecting piece laterally. The lower bracket fixing screw hole is a through hole that passes through the lower bracket fixing bolt longitudinally, and there are two of them.

[0038] The reinforcing ring 4 includes a ring 17 and a fastening valve 18. The reinforcing ring is a ring structure, and both ends are fixed to the lower bracket by bolts passing through the fixing screw holes of the lower bracket. The fastening valve is located on the side of the ring.

[0039] The positioning aluminum tube 28 includes a sliding sleeve 29, a piston positioning screw 30, and a positioning optical shaft 31. The sliding sleeve 29 is nested on the positioning aluminum tube 28 and is located between the positioning aluminum tube 28 and the positioning optical shaft 31. The piston positioning screw 30 passes through the positioning optical shaft 31 and connects the positioning optical shaft 31 to the push rod piston 27.

[0040] The angle between the two lower support plates is 135°.

[0041] The working principle and usage process of this utility model are as follows: During use, the lower support plate 14 rests against the insulator mounting column, the reinforcing ring 4 is sleeved on the insulator mounting column, and is tightened by the tightening valve 18. The upper support fixing plate 9 and the upper support movable plate 10 are sleeved on the front end support of the insulator. The upper support movable bolt 12 is tightened. The electric control panel 7 is activated, causing the pressure fixing rod 5 and the pressure movable rod 6 to rotate and extend. The electric control pressure rod 2 extends, making the support tighten and relieving the pressure at both ends of the insulator. The old insulator is removed and replaced with a new insulator. The electric control panel 7 is operated, the pressure movable rod 6 rotates in the opposite direction, the electric control pressure rod 2 shortens, and the high-voltage insulator replacement support of the transmission line is loosened. After removal, the insulator enters the pressure-bearing state and works normally.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A replacement bracket for high-voltage insulators of transmission lines, comprising an upper bracket, an electrically controlled pressure rod, a lower bracket, and a reinforcing ring, characterized in that: The electrically controlled pressure rod is a columnar structure, the upper support is an annular plate structure located at the front end of the electrically controlled pressure rod, the lower support is a bent plate structure located at the rear end of the electrically controlled pressure rod, and the reinforcing ring is an annular columnar structure located at the rear of the lower support.

2. The high-voltage insulator replacement bracket for transmission lines according to claim 1, characterized in that: The electrically controlled pressure rod includes a push rod base, a push rod outer tube, a motor, a lead screw, a push rod piston, an electrical control panel, and a positioning aluminum tube. The push rod base is a columnar structure, the push rod outer tube is a tubular structure located at the rear of the push rod base, the motor is located inside the push rod outer tube, the lead screw is rod-shaped and connected to the motor, the push rod piston is a tubular structure partially nested inside the push rod outer tube, the lead screw is inserted into the hollow part of the push rod piston shaft, and the electrical control panel is located on the side of the electrically controlled pressure rod and connected to the positioning aluminum tube and the motor.

3. A high-voltage insulator replacement bracket for transmission lines according to claim 2, characterized in that: It also includes a power supply. The electronic control panel includes a power charging port, a power switch, a power display screen, and a three-position switch. The power charging port, power switch, power display screen, and three-position switch are arranged on the electronic control panel. The power charging port, power switch, and power display screen are connected to the power supply. The three-position switch is connected to the motor via an electrical signal.

4. A high-voltage insulator replacement bracket for transmission lines according to claim 3, characterized in that: It also includes a sliding sleeve, a piston positioning screw, and a positioning optical shaft. The sliding sleeve is nested on the positioning aluminum tube and is located between the positioning aluminum tube and the positioning optical shaft. The piston positioning screw passes through the positioning optical axis, connecting the positioning optical axis to the push rod piston.

5. A high-voltage insulator replacement bracket for transmission lines according to claim 1, characterized in that: The upper support includes an upper support connecting shaft, an upper support fixing plate, an upper support movable plate, an upper support fastening bolt, and an upper support movable bolt. The upper support connecting shaft is located at the top of the upper support, passes laterally through the front end of the pressure fixing rod, and fixes the upper support to the electrically controlled pressure rod. The upper support fixing plate is a semi-circular ring located below the upper support connecting shaft. The upper support movable plate is also a semi-circular ring, connected to the bottom of the upper support fixing plate by the upper support movable bolt. The upper support fastening bolt passes laterally through the top positions of the upper support fixing plate and the upper support movable plate, connecting them together.

6. A high-voltage insulator replacement bracket for transmission lines according to claim 1, characterized in that: The lower bracket includes a lower bracket connecting piece, a lower bracket support piece, a lower bracket fixing piece, a lower bracket fixing screw hole, and a lower bracket fixing bolt. The lower bracket connecting piece is a double-layered sheet structure, connecting the lower bracket to the electrically controlled pressure rod via a transversely passing lower bracket fixing bolt. The lower bracket support piece is a sheet structure located to the side of the lower bracket connecting piece, and there are two of them. The lower bracket fixing piece is a sheet structure located at the bottom of the lower bracket connecting piece and connected to the lower bracket support piece. The lower bracket fixing bolt is a columnar body that transversely passes through the lower bracket connecting piece. The lower bracket fixing screw hole is a through hole that longitudinally passes through the lower bracket fixing bolt, and there are two of them.

7. A high-voltage insulator replacement bracket for transmission lines according to claim 6, characterized in that: The angle between the two lower support plates is 120°-140°.

8. A high-voltage insulator replacement bracket for transmission lines according to claim 7, characterized in that: The angle between the two lower support plates is 135°.

9. A replacement bracket for high-voltage insulators of transmission lines according to claim 1, characterized in that: It also includes a reinforcing ring and a fastening valve; the reinforcing ring is a ring-shaped structure, and its two ends are fixed to the lower bracket by bolts passing through the fixing screw holes of the lower bracket, and the fastening valve is located on the side of the ring.

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