Angle-adjustable and disassembly-free four-to-two wire clamp
By designing an adjustable-angle four-to-two wire clamp, the safety hazards and increased construction time caused by the fixed angle of the traditional four-to-two wire clamp are solved, achieving flexible connection and economic benefits.
Patent Information
- Application Number
- CN202423086750.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-13
AI Technical Summary
The fixed angle of the traditional four-to-two line clamp cannot adapt to the actual conditions of the substation site, resulting in safety hazards and increased construction time.
Design an adjustable four-to-two cable clamp. Through a disc and extension plate structure, combined with fastening bolts and a rotating shaft, it can achieve free adjustment of 0 degrees, 30 degrees, 45 degrees and 60 degrees, avoiding disassembly operations.
It reduces safety hazards, saves construction time and wiring hardware costs, and adapts to different connection needs.
Smart Images
Figure CN223527577U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to a kind of electric power fittings, specifically related to a four-to-two wire clamp with adjustable angle and removable, mainly applied in the connection between four split conductors and two split conductors in 500kV, 220kV voltage grade substation, switch station, power plant, etc., which is used to replace traditional four-to-two wire clamp. BACKGROUND
[0002] Traditional four-to-two wire clamp only has one angle, and typical application scenarios are as follows:
[0003] (1) Selection of four-to-two wire clamp for new out-of-line of substation, switch station or power plant
[0004] When new out-of-line of substation is built, the hanging points of A, B and C three-phase out-of-line are not at the same horizontal height, which may result in different angles of four-to-two wire clamp. Due to different time sequences, the design professionals or their units are inconsistent, and there is often lack of effective cooperation between inside and outside of substation. In the traditional design, only one angle is listed when four-to-two wire clamp is designed, which cannot effectively adapt to the actual site conditions of substation. After long-term operation, due to uneven stress of four-to-two wire clamp, four-to-two wire clamp may break in substation, which brings certain hidden danger to long-term safe operation of substation.
[0005] (2) Out-of-line modification of substation, switch station or power plant
[0006] When traditional out-of-line needs to be modified, due to inconsistency of line conductor sag, line tower shape and early stage, the angle of four-to-two wire clamp is often adjusted, but the angle of traditional four-to-two wire clamp is fixed, which cannot adapt to the angle of newly modified out-of-line, so four-to-two wire clamp needs to be replaced on site.
[0007] (3) Connection between removable conductor of series reactor station and line four split conductor
[0008] Due to the requirement of two operation modes of line series reactor and line non-series reactor for electrical main wiring form of series reactor station. Mode 1 is that current limiting reactor is connected in line; mode 2 is that line continues to operate under voltage through bypass conductor when current limiting reactor is withdrawn. When series reactor needs to be withdrawn, line is short-circuited, and then the connection (removable conductor in the figure) between series reactor and line is disconnected to restore line connection. The angle of four-to-two wire clamp in mode 1 is 0 degree, and the angle of four-to-two wire clamp in mode 2 is 30 degrees. If four-to-two wire clamp is not used, two conductors and two sets of four-to-two wire clamp are needed, which increases the use of wire clamp and conductor by 1 times, and greatly increases the cost of conductor and fitting and construction time when conductor is replaced. INVENTION CONTENTS
[0009] The utility model wants to solve the technical problem of the safety hidden danger, the increased construction time and other problems of four changes two line clamps in prior art, provides a four changes two line clamps of angle adjustable, exempt from demolition.
[0010] The technical scheme of the utility model is specifically as follows:
[0011] A four changes two line clamps of angle adjustable, exempt from demolition, including disc, the disc is connected with incoming line connecting device and outgoing line connecting device, and the wire is from the incoming line connecting device incoming line, outgoing line from the outgoing line connecting device after the disc;
[0012] The incoming line connecting device is provided with the first extension plate, the outgoing line connecting device is provided with the second extension plate, and the first extension plate and the second extension plate are provided with step holes, and the disc is arranged in the step holes on the first extension plate and the second extension plate;At least two fastening bolts are arranged on the circumference of the disc.
[0013] The axis of the disc is provided with a rotating shaft, and the rotating shaft is bolted.
[0014] The utility model has the advantages of the following aspects: the utility model can realize the free adjustment of 0 degrees, 30 degrees, 45 degrees and 60 degrees, can adapt to the connection between all four split conductors and two split conductors in 500kV, 220kV voltage grade transformer substation, switch station, power plant, reduces the security risk, and can save the time of removing the four changes two line clamps side conductor. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the four changes two line clamps wiring diagram of the new outgoing line of transformer substation, switch station or power plant in prior art;
[0016] Figure 2 It is the wiring diagram when the outgoing line of transformer substation, switch station or power plant is changed in prior art;
[0017] Figure 3 It is the wiring diagram of detachable conductor and line four split conductor in series resistance station in prior art;
[0018] Figure 4 It is the overall structure diagram of the utility model;
[0019] Figure 5 It is the side view of the utility model;
[0020] Figure 6 It is the angle adjustment diagram of the utility model. DETAILED DESCRIPTION
[0021] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.
[0022] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.
[0023] As shown in Figure 4 , Figure 5 A four-to-two wire clamp with adjustable angle and no need to remove, comprising a disc 6, the disc 6 is connected with incoming line connecting device 1 and outgoing line connecting device 2, the wire is from the incoming line connecting device 1, and the wire is from the outgoing line connecting device 2 after the disc 6.
[0024] It should be noted that the incoming line connecting device 1 is provided with a first extension plate 7, the outgoing line connecting device 2 is provided with a second extension plate 8, the first extension plate 7 and the second extension plate 8 are provided with stepped holes, and the disc 6 is arranged in the stepped holes on the first extension plate 7 and the second extension plate 8, so that the incoming line connecting device 1 and the outgoing line connecting device 2 can rotate around the disc 6.
[0025] Further, at least two fastening bolts 3 are arranged on the circumference of the disc 6, the fastening bolts 3 make the disc 6 press the first extension plate 7 and the second extension plate 8, so that the incoming line connecting device 1 and the outgoing line connecting device 2 cannot rotate relative to the disc 6.
[0026] Further, a rotating shaft 4 is arranged at the axis of the disc 6, and the rotating shaft 4 adopts a bolt.
[0027] As shown in Figure 6 , the working principle of the utility model is:
[0028] (1) When the four-to-two wire clamp of the utility model is selected for the new outgoing line of the transformer substation, switch station or power plant, a bolt 4 in the disc 6 of the four-to-two wire clamp is used as a rotating shaft, when the angle is adjusted, the surrounding fastening bolts 3 are removed first, then the rotating shaft 4 is rotated, and after the appropriate angle is rotated, the fastening bolts 3 are fixed, which can better use the scene that the outgoing line three-phase angles are inconsistent.
[0029] (2) when the substation, switch station or power plant out line is changed, the four-to-two wire clamp can better adapt to the problem, the purchasing cost of the four-to-two wire clamp and the time of replacing the four-to-two wire clamp on site are saved, and the four-to-two wire clamp has better economic benefits and popularization value.
[0030] (3) when the connection between the detachable conductor of the series reactor station and the four-split conductor of the line is achieved, the four-to-two wire clamp is adopted, and the time of removing the side conductor of the four-to-two wire clamp is saved.
[0031] The preferred embodiments of the utility model are described above, and it should be noted that, for those skilled in the art, without departing from the overall concept of the utility model, a number of changes and improvements can be made, and these should also be considered as the protection range of the utility model.
Claims
1. An adjustable angle, demolition-free four-to-two wire connector, characterized by: The utility model relates to a kind of wire connecting device, including disc (6), the disc (6) is connected with incoming line connecting device (1) and outgoing line connecting device (2), wire is from incoming line connecting device (1) incoming line, outgoing line from outgoing line connecting device (2) after disc (6); Incoming line connecting device (1) is provided with first extension plate (7), outgoing line connecting device (2) is provided with second extension plate (8), first extension plate (7) and second extension plate (8) are all provided with step hole, disc (6) is arranged in the step hole on first extension plate (7) and second extension plate (8);Disc (6) is provided with at least two fastening bolts (3) on circumference.
2. The adjustable angle, demolition-free four-to-two wire connector of claim 1, wherein: The axis of disc (6) is provided with rotating shaft (4), and rotating shaft (4) is bolted.