Insulator fitting capable of preventing wire from falling off

Abstract

The utility model discloses an anti-off-line insulator fitting, which relates to the field of insulator fittings and comprises a top frame plate arranged on the upper side of a fitting main body, two groups of first pressing plates and two groups of second pressing plates, the two groups of first pressing plates are respectively positioned on two sides of a lifting plate, the lifting plate is arranged at the inner top of the fitting main body, and the lifting plate is positioned on the lower side of the fitting main body. A first screw rod is rotatably connected to the middle of the upper surface of the lifting plate, limiting plates are fixedly connected to the positions, close to the edges of the two sides, of the upper surface of the lifting plate, a second screw rod is rotatably connected to the middle of the lower surface of the second pressing plate, and limiting rods are fixedly connected to the positions, close to the edges of the two sides, of the lower surface of the second pressing plate; compared with the prior art, the utility model has the advantages that relative displacement between the cable and the insulator fitting can be avoided, a good anti-off effect is achieved, the use stability of the insulator fitting is ensured, and the step-by-step disassembly function of the insulator fitting is realized, so that fault parts on the insulator fitting can be replaced in time.

Description

Technical Field

[0001] The utility model relates to the field of insulator hardware, in particular to an insulator hardware for preventing line derailment. Background Art

[0002] An insulator is a device installed between conductors at different potentials or between a conductor and a ground potential component, which can withstand voltage and mechanical stress. Insulators play two basic roles in overhead transmission lines, namely supporting the conductors and preventing current from returning to the ground. The two ends of the insulator are insulator fittings, which are the metal ends of the insulator.

[0003] After searching, the patent number is CN213277633U, which discloses a U-shaped corrosion-resistant combined insulator hardware. It is easy to install and has a simple structure. It is convenient for workers to install, improves the work efficiency of workers, avoids replacing the corresponding insulator hardware when replacing the line, and saves labor costs. However, when the existing insulator hardware is connected and used, it is easy to cause relative displacement between the cable due to the loosening of the bolts, thereby causing the hardware to become off-line, and the stability of use is poor. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an insulator hardware that can prevent derailment. When the existing insulator hardware is connected and used, it is easy for the loose bolts to cause relative displacement with the cable, thereby causing the hardware to derail, and the use stability is poor.

[0005] In order to solve the above technical problems, the technical solution of the utility model is a kind of insulator hardware for preventing line derailment, comprising a top frame plate arranged on the upper side of the hardware body, and also comprising two groups of first pressure plates and second pressure plates, and the two groups of first pressure plates are respectively located on both sides of the lifting plate, and a lifting plate is arranged on the inner top of the hardware body, and a first screw rod is rotatably connected to the middle position of the upper surface of the lifting plate, and the upper surface of the lifting plate is fixedly connected to limiting plates near the edge positions on both sides, and a second screw rod is rotatably connected to the middle position of the lower surface of the second pressure plate, and the lower surface of the second pressure plate is fixedly connected to limiting rods near the edge positions on both sides.

[0006] As a further solution of the utility model: limiting openings are opened through the upper surface of the hardware body near both sides, and the two groups of first pressure plates are respectively located on the inner sides of the two groups of limiting openings, the cross-sectional shapes of the two groups of first pressure plates are both U-shaped, and the two groups of limiting plates are symmetrically arranged about the first screw.

[0007] As a further solution of the utility model: the cross-sectional shape of the lifting plate is arc-shaped, the upper surface of the top frame plate is penetrated by a first screw hole and two groups of first sliding holes, the first screw is threadedly connected to the top frame plate through the first screw hole, and the two groups of limit plates are respectively slidably connected to the top frame plate through the first sliding holes.

[0008] As a further solution of the utility model: a plurality of groups of clamping holes are respectively opened at equal intervals on the two groups of limit plates, clamping bolts are respectively provided at the middle positions on both sides of the top frame plate, and the two groups of clamping bolts are respectively clamped with the two groups of limit plates through the clamping holes.

[0009] As a further solution of the utility model: the cross-sectional shape of the second pressure plate is arc-shaped, the lower surface of the hardware body is penetrated by a second screw hole and two groups of second sliding holes, and the second screw rod is threadedly connected to the hardware body through the second screw hole, and the limit rod is slidably connected to the hardware body through the second sliding hole.

[0010] As a further solution of the utility model: the ends of the first screw and the second screw are respectively clamped with the first clamping cap and the second clamping cap, both ends of the top frame plate are fixedly connected with mounting plates, the outer middle positions of the two groups of mounting plates are penetrated with mounting bolts, both ends of the lifting plate are fixedly connected with connecting plates, and connecting ports are penetrated on the two groups of the first pressure plates.

[0011] As a further solution of the utility model: screw grooves are provided at the middle positions on both sides of the hardware body, and two groups of mounting bolts respectively pass through the two groups of mounting plates to match the screw grooves and are threadedly connected to the hardware body.

[0012] As a further solution of the utility model: the two groups of connecting plates are respectively slidably connected to the two groups of first pressing plates through connecting ports, and the cross-sectional shapes of the two groups of connecting plates are both arranged in an arc shape.

[0013] The utility model adopts the above technical scheme, and has the following advantages compared with the prior art: the lifting plate is moved downward by the threaded connection of the first screw and the top frame plate, in cooperation with the two groups of limit plates and the two groups of first sliding holes, thereby driving the two groups of first pressure plates to move downward along the two groups of limit openings respectively, until the two groups of first pressure plates preliminarily press the cables, and the relative position of the limit plate and the top frame plate is fixed by the cooperation of the clamping bolt and the clamping hole, and at the same time, the second screw and the hardware body are threadedly connected, in cooperation with the two groups of limit rods and the two groups of second sliding holes, so that the second pressure plate moves upward until the second pressure plate further presses the cable, which can avoid relative displacement between the cable and the insulator hardware, play a good anti-decoupling effect, and ensure the stability of the insulator hardware.

[0014] By cooperating with two sets of mounting bolts and two sets of screw grooves, the two sets of mounting plates are respectively kept away from the outside of the hardware body, so that the top frame plate can be removed from the upper side of the hardware body, and then by cooperating with the connecting plate and the connecting port, the two sets of first pressure plates are respectively kept away from the two sides of the lifting plate, and the lifting plate can be removed from the inner side of the top frame plate by separating the first clamping cap and the first screw rod, and then the second pressure plate can be taken out from the inner side of the hardware body by separating the second clamping cap and the second screw rod, thereby realizing the step-by-step disassembly function of the insulator hardware, so as to facilitate the timely replacement of faulty parts on the insulator hardware. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an insulator hardware for preventing line derailment in an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the first pressing plate and the second pressing plate in an embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure between the top frame plate and the hardware body in the embodiment of the utility model;

[0018] Figure 4 It is a front view of an insulator hardware for preventing line derailment in an embodiment of the utility model.

[0019] In the figure: 1. hardware body; 2. limiting opening; 3. top frame plate; 4. lifting plate; 5. first pressure plate; 6. first screw rod; 7. first clamping nut; 8. first screw hole; 9. limiting plate; 10. first sliding hole; 11. clamping bolt; 12. clamping hole; 13. second pressure plate; 14. second screw rod; 15. second clamping nut; 16. second screw hole; 17. limiting rod; 18. second sliding hole; 19. mounting plate; 20. mounting bolt; 21. screw groove; 22. connecting plate; 23. connecting opening. DETAILED DESCRIPTION

[0020] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] Example 1, please refer to Figure 1-Figure 4An insulator hardware for preventing derailment includes a top frame plate 3 arranged on the upper side of a hardware body 1, and also includes two groups of first pressing plates 5 and second pressing plates 13, and the two groups of first pressing plates 5 are respectively located on both sides of a lifting plate 4, a lifting plate 4 is arranged on the inner top of the hardware body 1, a first screw rod 6 is rotatably connected to the middle position of the upper surface of the lifting plate 4, and the upper surface of the lifting plate 4 is fixedly connected to a limiting plate 9 near the edge positions on both sides, a second screw rod 14 is rotatably connected to the middle position of the lower surface of the second pressing plate 13, and the lower surface of the second pressing plate 13 is fixedly connected to the limiting rod 17 near the edge positions on both sides.

[0022] The upper surface of the hardware body 1 is penetrated by limiting openings 2 near both sides, and the two groups of first pressure plates 5 are respectively located on the inner sides of the two groups of limiting openings 2. The cross-sectional shapes of the two groups of first pressure plates 5 are both U-shaped, the two groups of limiting plates 9 are symmetrically arranged about the first screw 6, the cross-sectional shape of the lifting plate 4 is arc-shaped, and the upper surface of the top frame plate 3 is penetrated by a first screw hole 8 and two groups of first sliding holes 10. The first screw 6 is threadedly connected to the top frame plate 3 through the first screw hole 8, and the two groups of limiting plates 9 are slidingly connected to the top frame plate 3 through the first sliding holes 10.

[0023] In this embodiment, the first screw rod 6 is threadedly connected to the top frame plate 3 to cooperate with two groups of limit plates 9 and two groups of first sliding holes 10 to facilitate the lifting and lowering of the lifting plate 4.

[0024] The two groups of limit plates 9 are respectively provided with a plurality of clamping holes 12 at equal intervals, and clamping bolts 11 are respectively provided at the middle positions on both sides of the top frame plate 3, and the two groups of clamping bolts 11 are respectively clamped with the two groups of limit plates 9 through the clamping holes 12.

[0025] In this embodiment, the relative positions of the limiting plate 9 and the top frame plate 3 are fixed by the cooperation between the clamping bolt 11 and the clamping hole 12 .

[0026] The cross-sectional shape of the second pressure plate 13 is arc-shaped, and a second screw hole 16 and two sets of second sliding holes 18 are penetrated through the lower surface of the hardware body 1. The second screw rod 14 is threadedly connected to the hardware body 1 through the second screw hole 16, and the limit rod 17 is slidably connected to the hardware body 1 through the second sliding hole 18.

[0027] In this embodiment, the second screw rod 14 is threadedly connected to the hardware body 1 to cooperate with two groups of limit rods 17 and two groups of second sliding holes 18 to facilitate the lifting and lowering of the second pressing plate 13 .

[0028] Specifically, the lifting plate 4 is moved downward by the threaded connection between the first screw 6 and the top frame plate 3, in cooperation with the two groups of limit plates 9 and the two groups of first sliding holes 10, thereby driving the two groups of first pressure plates 5 to move downward along the two groups of limit openings 2 respectively, until the two groups of first pressure plates 5 preliminarily press the cables, and the relative positions of the limit plates 9 and the top frame plate 3 are fixed by the cooperation of the clamping bolts 11 and the clamping holes 12. At the same time, the second screw 14 is threadedly connected to the hardware body 1, in cooperation with the two groups of limit rods 17 and the two groups of second sliding holes 18, so that the second pressure plate 13 moves upward until the second pressure plate 13 further presses the cables, which can avoid relative displacement between the cables and the insulator hardware, play a good anti-decoupling effect, and ensure the stability of the insulator hardware.

[0029] Example 2, please refer to Figure 1-Figure 4 , an insulator hardware to prevent line derailment, the ends of the first screw 6 and the second screw 14 are respectively clamped with the first clamping cap 7 and the second clamping cap 15, both ends of the top frame plate 3 are fixedly connected with the mounting plates 19, the middle positions of the outer sides of the two groups of mounting plates 19 are penetrated with mounting bolts 20, both ends of the lifting plate 4 are fixedly connected with connecting plates 22, and the two groups of first pressing plates 5 are penetrated with connecting ports 23.

[0030] Screw grooves 21 are provided in the middle of both sides of the hardware body 1 , and two groups of mounting bolts 20 pass through the two groups of mounting plates 19 respectively and are matched with the screw grooves 21 to be threadedly connected with the hardware body 1 .

[0031] In this embodiment, the mounting plate is clamped with the hardware body by the cooperation of the mounting bolts and the screw grooves.

[0032] The two groups of connection plates 22 are slidably connected to the two groups of first pressing plates 5 through the connection ports 23 , respectively, and the cross-sectional shapes of the two groups of connection plates 22 are both arc-shaped.

[0033] In this embodiment, the two groups of first pressing plates 5 are respectively installed on both sides of the lifting plate 4 through the cooperation of the connecting plate 22 and the connecting port 23 .

[0034] Specifically, by cooperating with two groups of mounting bolts 20 and two groups of screw grooves 21, the two groups of mounting plates 19 are respectively moved away from the outside of the hardware body 1, so that the top frame plate 3 can be removed from the upper side of the hardware body 1, and then by cooperating with the connecting plate 22 and the connecting port 23, the two groups of first pressure plates 5 are respectively moved away from the two sides of the lifting plate 4, and by separating the first clamping cap 7 from the first screw 6, the lifting plate 4 can be removed from the inner side of the top frame plate 3, and then by separating the second clamping cap 15 and the second screw 14, the second pressure plate 13 can be taken out from the inner side of the hardware body, thereby realizing the step-by-step disassembly function of the insulator hardware, so as to facilitate the timely replacement of faulty parts on the insulator hardware.

[0035] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. An insulator fitting for preventing line derailment, comprising a top frame plate (3) arranged on the upper side of a fitting body (1), characterized in that: The hardware body (1) further comprises two groups of first pressing plates (5) and second pressing plates (13), and the two groups of first pressing plates (5) are respectively located on both sides of the lifting plate (4); a lifting plate (4) is arranged on the inner top of the hardware body (1); a first screw rod (6) is rotatably connected to the middle position of the upper surface of the lifting plate (4); the upper surface of the lifting plate (4) is fixedly connected to a limiting plate (9) near the edge positions on both sides; a second screw rod (14) is rotatably connected to the middle position of the lower surface of the second pressing plate (13); and the lower surface of the second pressing plate (13) is fixedly connected to a limiting rod (17) near the edge positions on both sides.

2. The insulator hardware for preventing line derailment according to claim 1, characterized in that: The upper surface of the hardware body (1) is provided with limit openings (2) near both sides, and the two groups of first pressure plates (5) are respectively located on the inner sides of the two groups of limit openings (2), and the cross-sectional shapes of the two groups of first pressure plates (5) are both U-shaped, and the two groups of limit plates (9) are symmetrically arranged with respect to the first screw rod (6).

3. The insulator hardware for preventing line derailment according to claim 2, characterized in that: The cross-sectional shape of the lifting plate (4) is arranged in an arc shape, and a first screw hole (8) and two groups of first sliding holes (10) are provided through the upper surface of the top frame plate (3); the first screw rod (6) is threadedly connected to the top frame plate (3) through the first screw hole (8), and the two groups of limit plates (9) are respectively slidably connected to the top frame plate (3) through the first sliding holes (10).

4. The insulator hardware for preventing line derailment according to claim 3, characterized in that: A plurality of groups of clamping holes (12) are respectively provided on the two groups of limit plates (9) at equal intervals, and clamping bolts (11) are respectively provided at the middle positions on both sides of the top frame plate (3), and the two groups of clamping bolts (11) are respectively clamped with the two groups of limit plates (9) through the clamping holes (12).

5. The insulator hardware for preventing line derailment according to claim 1, characterized in that: The cross-sectional shape of the second pressure plate (13) is arranged in an arc shape, and a second screw hole (16) and two groups of second sliding holes (18) are provided through the lower surface of the hardware body (1), and the second screw rod (14) is threadedly connected to the hardware body (1) through the second screw hole (16), and the limit rod (17) is slidably connected to the hardware body (1) through the second sliding hole (18).

6. The insulator hardware for preventing line derailment according to claim 1, characterized in that: The ends of the first screw rod (6) and the second screw rod (14) are respectively clamped with a first clamping cap (7) and a second clamping cap (15); both ends of the top frame plate (3) are fixedly connected with a mounting plate (19); the middle positions of the outer sides of the two groups of mounting plates (19) are penetrated with mounting bolts (20); both ends of the lifting plate (4) are fixedly connected with a connecting plate (22); and the two groups of the first pressing plates (5) are penetrated with a connecting port (23).

7. The insulator hardware for preventing line derailment according to claim 6, characterized in that: Screw grooves (21) are provided at the middle positions on both sides of the hardware body (1), and two groups of mounting bolts (20) pass through the two groups of mounting plates (19) respectively and cooperate with the screw grooves (21) to be threadedly connected with the hardware body (1).

8. The insulator hardware for preventing line derailment according to claim 6, characterized in that: The two groups of connecting plates (22) are respectively slidably connected to the two groups of first pressing plates (5) via connecting ports (23), and the cross-sectional shapes of the two groups of connecting plates (22) are both arranged in an arc shape.

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