Anti-drop device for insulator
By designing anti-disassembly devices on the insulators and using structures such as pressure plates, push bars and airbags, the problem of unfixed conductors of the 35 kV transmission line is solved, the stability and reliability between the conductors and the insulators are improved, and the circuit is reduced Operational risk.
Patent Information
- Application Number
- CN202420592272.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-26
AI Technical Summary
In the 35 kV transmission line, the wires and insulators are fixed by tied wires, which leads to the problem of wire falling off in harsh environments, reducing the reliability of the line and power supply reliability, especially in wind and micro-terrain areas, the risk is more high. big.
An anti-disengagement device for insulators is designed, including a pressure plate, a push bar, a first latching assembly and a second latching assembly. Through the airbag inflation and spring reset mechanism, the fixing stability between the wire and the insulator is improved, and direct squeeze is avoided. Pressure damage.
It improves the stability and reliability of the wires fixed to the insulator, reduces the risk of wires falling off, and enhances the operating reliability of the transmission line in harsh environments.
Smart Images
Figure CN222145913U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of insulators, in particular to an anti-dropping device for insulators. Background Art
[0002] Composite insulators are often used in 35 kV transmission lines. The conductors and insulators are fixed by binding wires. Since most transmission lines are located in the wild, on mountain tops, in windy areas and in micro-topography areas, the binding wires are used under high voltage for a long time during construction, and they operate in various harsh environments. The top-bearing insulators are prone to poor binding wire workmanship, segmentation, loosening, and falling out, which can cause the live conductors to fall off.
[0003] At present, the conductors and insulators of 35 kV transmission lines are fixed with binding wires, which makes the line operation subject to the risk of live conductors falling off, reducing the reliability of line operation. If the 35 kV transmission line is operated in special areas such as windy areas and micro-topography areas, the risk of operation of the 35 kV transmission line is further increased, resulting in line tripping, reducing power supply reliability and causing adverse effects on society.
[0004] Therefore, it is necessary to propose an anti-dropping device for insulators to solve the above problems. Utility Model Content
[0005] The utility model aims to provide an anti-dropping device for insulators to solve the problem that the current 35 kV transmission line conductors and insulators are fixed with binding wires, which makes the line operation at risk of live conductors falling off, reducing the reliability of line operation. If the 35 kV transmission line is operated in special areas such as windy areas and micro-topography areas, the risk of the 35 kV transmission line operation is further increased, thereby causing line tripping, reducing power supply reliability, and causing adverse effects on society.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-dropping device for an insulator, comprising a pressure plate and a push strip, the bottom of the push strip is provided with a first clamping component for clamping on the top of the insulator, the bottom of the pressure plate is provided with a second clamping component for clamping on the top of the insulator, a clamping groove is provided on the side of the pressure plate facing the push strip, a clamping plate is fixedly connected to the push strip, the clamping plate is plugged into the clamping groove, limiting grooves are provided on both sides of the top of the clamping groove, a square groove is provided on the upper surface of the clamping plate, a square plate is slidably connected to the inside of the square groove, and a limiting tooth is fixedly connected to the top of the square plate, and the limiting tooth cooperates with the limiting groove.
[0007] Preferably, a first spring is fixedly connected between the square plate and the bottom of the square groove, a sliding groove is provided on the inner wall of the square groove, a sliding block is slidably connected inside the sliding groove, and the sliding block is fixedly connected to the square plate.
[0008] Preferably, a sliding channel is provided through the middle section of the top of the slot.
[0009] Preferably, an airbag is fixedly connected to the lower surface of the pressure plate, an air cavity is opened inside the pressure plate, the air cavity is connected with the card slot through a circular groove, the airbag is connected with the air cavity through the air groove, a slide plate is slidably connected to the inside of the air cavity, a round rod is slidably connected to the inside of the circular groove, the slide plate is fixedly connected to the round rod, a second spring is mounted on the outside of the round rod, one end of the second spring is fixedly connected to the slide plate, and the other end of the second spring is fixedly connected to the inner wall of the air cavity.
[0010] Preferably, the first clamping assembly includes a first bracket and a first elastic clamping strip, and the first bracket and the first elastic clamping strip are each provided in two numbers, the two first brackets are respectively fixedly connected to the two ends of the bottom of the push strip, and the first elastic clamping strip is fixedly connected to the corresponding first bracket.
[0011] Preferably, the second clamping assembly includes a second bracket and a second elastic clamping strip, and the second bracket and the second elastic clamping strip are each provided in two numbers, the two second brackets are respectively fixedly connected to the two ends of the bottom of the pressure plate, and the second elastic clamping strip is fixedly connected to the corresponding second bracket.
[0012] Technical effects and advantages of the utility model:
[0013] 1. The utility model solves the problem of low efficiency of wire fixing operation on existing insulators by arranging structures such as a pressing plate, a push bar, a first clamping assembly and a second clamping assembly. The pressing plate presses the wire into the groove at the top of the insulator.
[0014] 2. The airbag is inflated and adaptively abuts against the grooves at the top of the conductor and insulator to improve the stability of the conductor fixation;
[0015] 3. The return force of the second spring causes the round rod to reversely squeeze the card plate, and the limiting teeth can be stably inserted and fitted into the corresponding limiting grooves, thereby improving the stability of the connection between the pressure plate and the push strip;
[0016] 4. The airbags are distributed between the pressure plate and the wire to avoid damage caused by direct squeezing of the pressure plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 The utility model is a schematic structural diagram of an anti-dropping device for an insulator from one perspective.
[0018] Figure 2 This is a schematic structural diagram of the anti-dropping device for insulators of the utility model from another perspective.
[0019] Figure 3 It is a schematic diagram of the structure of the pressing plate and the pushing strip of the utility model.
[0020] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure in the middle.
[0021] Figure 5 This is a schematic diagram of the push strip and the card plate structure of the utility model.
[0022] Figure 6 This is a schematic diagram of the pressing plate and the card slot structure of the utility model.
[0023] In the figure: 1, pressure plate; 2, push strip; 3, card slot; 4, card plate; 5, sliding channel; 6, limit slot; 7, square slot; 8, square plate; 9, limit tooth; 10, first spring; 11, round slot; 12, slide slot; 13, slider; 14, air cavity; 15, slide plate; 16, round rod; 17, second spring; 18, air bag; 19, air slot; 20, first bracket; 21, first elastic card strip; 22, second bracket; 23, second elastic card strip. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clarify the technical solutions in the embodiments of the utility model; it is completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] The utility model provides Figure 1-Figure 6 The insulator anti-drop device shown in the figure includes a pressing plate 1 and a push bar 2. The bottom of the push bar 2 is provided with a first clamping assembly for clamping on the top of the insulator. The first clamping assembly includes a first bracket 20 and a first elastic clamping strip 21. The first bracket 20 and the first elastic clamping strip 21 are both provided with two. The two first brackets 20 are respectively fixedly connected to the two ends of the bottom of the push bar 2, and the first elastic clamping strip 21 is fixedly connected to the corresponding first bracket 20. Specifically, hold the push bar 2 and push it toward the insulator, and the two first elastic clamping strips 21 cooperate and clamp into the groove outside the top of the insulator.
[0026] The bottom of the pressing plate 1 is provided with a second clamping assembly for clamping on the top of the insulator, and the second clamping assembly includes a second bracket 22 and a second elastic clamping strip 23. The second bracket 22 and the second elastic clamping strip 23 are both provided with two, and the two second brackets 22 are respectively fixedly connected to the two ends of the bottom of the pressing plate 1, and the second elastic clamping strip 23 is fixedly connected to the corresponding second bracket 22. Specifically, hold the pressing plate 1 and push it toward the insulator, and the two second elastic clamping strips 23 cooperate and clamp into the groove outside the top of the insulator.
[0027] The first elastic clamping strip 21 and the second elastic clamping strip 23 are staggered up and down so as to be easily clamped on the insulator. During the clamping process, the pressing plate 1 presses the wire into the groove at the top of the insulator.
[0028] A clamping groove 3 is provided on the side of the pressing plate 1 facing the push strip 2, and a clamping plate 4 is fixedly connected to the push strip 2, and the clamping plate 4 is plugged into the clamping groove 3. When in use, the pressing plate 1 and the second clamping assembly are first fixed on the insulator, and the two second elastic clamping strips 23 are matched and clamped into the groove outside the top of the insulator, and the pressing plate 1 presses the wire into the groove at the top of the insulator; then the push strip 2 and the first clamping assembly are fixed on the insulator, and the clamping plate 4 is inserted into the inside of the clamping groove 3.
[0029] Both sides of the top of the card slot 3 are provided with limit slots 6, and the limit slots 6 on both sides are provided with a plurality of them and are continuously distributed. A square slot 7 is provided on the upper surface of the card plate 4, and a square plate 8 is slidably connected inside the square slot 7. The top of the square plate 8 is fixedly connected with a limit tooth 9, and the limit tooth 9 cooperates with the limit slot 6.
[0030] A first spring 10 is fixedly connected between the square plate 8 and the bottom of the square groove 7. In order to improve the stability of the square plate 8 sliding inside the square groove 7, a sliding groove 12 is provided on the inner wall of the square groove 7. A slider 13 is slidably connected inside the sliding groove 12. The slider 13 is fixedly connected to the square plate 8. The limiting groove 6 and the limiting tooth 9 are both in the shape of a right triangle (refer to Figure 4 ), during the process of inserting the card plate 4 into the card slot 3, the limiting teeth 9 and the square plate 8 will move up and down synchronously under the squeezing of the inclined inner walls of the multiple limiting grooves 6 and the return elastic force of the first spring 10. After the card plate 4 is inserted into the appropriate depth, the limiting teeth 9 are located inside one of the limiting grooves 6, and the limiting teeth 9 are completely inserted into the limiting groove 6, so that the card plate 4 will not slide in the opposite direction, completing the assembly connection between the pressure plate 1 and the push strip 2.
[0031] The utility model provides a pressing plate 1, a push bar 2, a first clamping assembly and a second clamping assembly, wherein the pressing plate 1 presses the wire into a groove at the top of the insulator, thereby solving the problem of low wire fixing efficiency on the existing insulator.
[0032] In order to facilitate the card plate 4 to be drawn out from the card slot 3, a sliding channel 5 is provided through the middle section of the top of the card slot 3. Specifically, the staff can press the square plate 8 with fingers or tools such as a screwdriver, and the square plate 8 slides downward inside the square slot 7, and the limiting teeth 9 are retracted into the inside of the square slot 7, so that the card plate 4 can be drawn out from the inside of the card slot 3.
[0033] In order to further improve the stability of the wire fixation, the lower surface of the pressing plate 1 is fixedly connected with an air bag 18, and the inside of the pressing plate 1 is provided with an air cavity 14, which is connected with the card slot 3 through the circular groove 11, and the air bag 18 is connected with the air cavity 14 through the air groove 19. The inside of the air cavity 14 is slidably connected with a slide plate 15, and the inside of the circular groove 11 is slidably connected with a round rod 16, and the slide plate 15 is fixedly connected to the round rod 16, and the outside of the round rod 16 is sleeved with a second spring 17, one end of the second spring 17 is fixedly connected to the slide plate 15, and the other end of the second spring 17 is fixedly connected to the inner wall of the air cavity 14.
[0034] When the card plate 4 is inserted into the card slot 3, the round rod 16 is squeezed to move into the air cavity 14, and the slide plate 15 presses the gas in the air cavity 14 into the air bag 18 through the air groove 19, so that the air bag 18 is inflated and adaptively abuts against the grooves at the top of the conductor and the insulator, thereby improving the stability of the conductor fixation;
[0035] During this process, the restoring elastic force of the second spring 17 causes the round rod 16 to reversely squeeze the clamping plate 4, and the limiting teeth 9 can be stably inserted and fitted in the corresponding limiting grooves 6, thereby improving the stability of the connection between the pressing plate 1 and the push strip 2.
[0036] In addition, the airbag 18 is distributed between the pressing plate 1 and the wire, which can avoid damage caused by direct squeezing of the pressing plate 1.
[0037] At the same time, the airbag 18 can be made of insulating material, and there is no need to use structures such as insulating gaskets.
[0038] When the clamping plate 4 is pulled out from the inside of the clamping slot 3 , the restoring elastic force of the second spring 17 can restore the round rod 16 and the slide plate 15 .
Claims
1. An anti-drop device for an insulator, comprising a pressing plate (1) and a push rod (2), characterized in that: The bottom of the push strip (2) is provided with a first locking component for locking on the top of the insulator, and the bottom of the pressure plate (1) is provided with a second locking component for locking on the top of the insulator. The pressure plate (1) is provided with a locking groove (3) on the side facing the push strip (2). The push strip (2) is fixedly connected with a clamping plate (4), and the clamping plate (4) is plugged into the clamping groove (3). Both sides of the top of the clamping groove (3) are provided with limiting grooves (6). The upper surface of the clamping plate (4) is provided with a square groove (7), and the inside of the square groove (7) is slidably connected with a square plate (8). The top of the square plate (8) is fixedly connected with a limiting tooth (9), and the limiting tooth (9) is matched with the limiting groove (6).
2. The anti-dropping device for an insulator according to claim 1, characterized in that: A first spring (10) is fixedly connected between the square plate (8) and the bottom of the square groove (7); a sliding groove (12) is provided on the inner wall of the square groove (7); a sliding block (13) is slidably connected inside the sliding groove (12); and the sliding block (13) is fixedly connected to the square plate (8).
3. The anti-dropping device for an insulator according to claim 2, characterized in that: A sliding channel (5) is provided through the middle section of the top of the slot (3).
4. The anti-dropping device for an insulator according to claim 1, characterized in that: The lower surface of the pressure plate (1) is fixedly connected to an air bag (18); an air cavity (14) is provided inside the pressure plate (1); the air cavity (14) is connected to the card slot (3) via a circular groove (11); the air bag (18) is connected to the air cavity (14) via an air groove (19); a slide plate (15) is slidably connected to the inside of the air cavity (14); a round rod (16) is slidably connected to the inside of the circular groove (11); the slide plate (15) is fixedly connected to the round rod (16); a second spring (17) is sleeved on the outside of the round rod (16); one end of the second spring (17) is fixedly connected to the slide plate (15); and the other end of the second spring (17) is fixedly connected to the inner wall of the air cavity (14).
5. The anti-dropping device for insulator according to claim 1, characterized in that: The first clamping assembly comprises a first bracket (20) and a first elastic clamping strip (21), and the first bracket (20) and the first elastic clamping strip (21) are both provided in two numbers, and the two first brackets (20) are respectively fixedly connected to the two ends of the bottom of the push strip (2), and the first elastic clamping strip (21) is fixedly connected to the corresponding first bracket (20).
6. The anti-dropping device for insulator according to claim 1, characterized in that: The second clamping assembly comprises a second bracket (22) and a second elastic clamping strip (23), and the second bracket (22) and the second elastic clamping strip (23) are both provided in two pieces, and the two second brackets (22) are respectively fixedly connected to the two ends of the bottom of the pressure plate (1), and the second elastic clamping strip (23) is fixedly connected to the corresponding second bracket (22).