72.5 kV handcart type disconnecting switch

Abstract

The utility model discloses a 72.5 kV handcart type disconnecting switch structure, which relates to the field of electric power and comprises a handcart, a support is mounted on the handcart, a cross beam is mounted on the support, a supporting insulator and a connecting conductor are mounted above the cross beam, an isolating plug is mounted on one side of the connecting conductor, one end of the isolating plug is fixed with one end of the connecting conductor, and the other end of the isolating plug is fixed with the other end of the connecting conductor. The other end of the isolation plug can be connected with a circuit breaker. According to the utility model, the problem that the 72.5 kV disconnecting switch in the prior art cannot be moved independently is solved, and the moving requirement of indoor power equipment on the disconnecting switch is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the electric power field especially is related to a 72.5kV handcart type isolating switch. BACKGROUND

[0002] In the electric power industry, the isolating switch is a very important switch device in power plant, substation and other occasions. The main function of the isolating switch is to ensure that the circuit is completely disconnected during maintenance and maintenance, and to avoid accidental power-on of electrical equipment in the case of not being completely disconnected. The isolating switch has the characteristics of relatively simple structure and low cost.

[0003] At present, most of the 72.5kV isolating switches are fixed on the base and cannot be moved or integrated in the handcart type circuit breaker. When there is a need to move indoors, it is often integrated with the handcart type circuit breaker. In the indoor environment, when facing the actual demand to move the isolating switch, due to the close integration with the handcart type circuit breaker, the isolating switch cannot be operated alone, and can only be moved together with the handcart type circuit breaker.

[0004] Therefore, there is a lack of separate 72.5kV handcart type isolating switch design in the prior art, which is difficult to meet the demand of indoor power equipment for separate movement of the isolating switch. SUMMARY

[0005] The embodiment of the present application provides a 72.5kV handcart type isolating switch, which solves the problem that the existing 72.5kV isolating switch cannot be moved alone, and meets the demand of indoor power equipment for separate movement of the isolating switch.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme, a 72.5kV handcart type isolating switch structure, including handcart, the support is installed on the handcart, the crossbeam is installed on the support, the support insulator and the connecting conductor are installed above the crossbeam, the isolating plug is installed on one side of the connecting conductor and the isolating plug is fixed with one end of the connecting conductor, and the other end of the isolating plug can be connected with the circuit breaker.

[0007] As a further improvement of the above scheme, the handcart includes a chassis, wheels are installed below the chassis, and a handle is installed on one side of the chassis.

[0008] As a further improvement of the above scheme, the connecting conductor includes a conductive plate and a terminal block, one end of the terminal block is installed on one side of the conductive plate, the middle part of the terminal block can be fixed with the support insulator, and the other end of the terminal block is connected with the isolating plug.

[0009] As a further improvement of the above-mentioned scheme, the cross beam comprises a transversely extending base body, upper and lower edges of the base body are bent towards the same side to form bent portions, and a through hole is arranged on the bent portion, the through hole being capable of fixing the cross beam, the support and the support insulator by cooperating with the bolt.

[0010] As a further improvement of the above-mentioned scheme, the isolation plug comprises an isolation movable contact, a movable contact seat, a static contact and a circuit breaker connecting seat, the isolation movable contact is connected with the terminal seat, the movable contact seat is fixed on one side of the isolation movable contact and cooperates with the static contact, and the static contact is capable of being fixed with the circuit breaker through the circuit breaker connecting seat.

[0011] As a further improvement of the above-mentioned scheme, the handcart is further provided with an isolation net, and the isolation net comprises a frame and a steel wire mesh in the frame, and edges of the steel wire mesh are welded and fixed with the frame.

[0012] Through the above technical scheme, the utility model has at least the following technical effects or advantages:

[0013] The utility model discloses a handcart, support, cross beam and other components are integrated together to form a movable integral structure. Thus, the operator can conveniently push or pull the handcart to move, and the isolating switch can be moved to the required position. The flexibility of the isolating switch is improved, and the moving requirement of the 72.5kV isolating switch for indoor power equipment is met. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the utility model, the following will briefly introduce the drawings needed to be used in the description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor:

[0015] Figure 1 It is the overall structure schematic view of the utility model;

[0016] Figure 2 It is Figure 1 the side view of the utility model;

[0017] Figure 3 It is the structure schematic view of the handcart;

[0018] Figure 4 It is the structure schematic view of the conductive plate in the connecting conductor;

[0019] Figure 5 It is the structure schematic view of the terminal seat in the connecting conductor;

[0020] Figure 6 It is Figure 5 the top view of the utility model;

[0021] Figure 7 This is a schematic diagram of the structure connecting the conductors;

[0022] Figure 8 This is a schematic diagram of the isolation net structure.

[0023] Explanation of reference numerals in the attached drawings: 1. Handcart; 101. Base frame; 102. Wheel; 103. Handle; 2. Bracket; 3. Crossbeam; 4. Support insulator; 5. Connecting conductor; 501. Conductive plate; 502. Terminal block; 6. Isolation plug; 601. Isolation moving contact; 602. Moving contact seat; 603. Stationary contact; 604. Circuit breaker connection seat; 7. Isolation net; 701. Frame; 702. Wire mesh; 703. Steel plate. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, other embodiments obtained by those skilled in the art without creative effort are all within the scope of protection of this patent.

[0025] Example 1

[0026] Reference Figures 1 to 8 This embodiment provides a 72.5kV handcart-type disconnect switch, the structure of which includes a handcart 1, a bracket 2, a crossbeam 3, a supporting insulator 4, a connecting conductor 5, an isolation plug 6, and an isolation net 7.

[0027] The handcart 1 is the moving carrier of the entire disconnecting switch, and its structure is as follows: Figure 3 As shown, the device includes a base frame 101, wheels 102, and a handle 103. The base frame 101 serves as the support structure for the entire handcart. The wheels 102 are installed below the base frame 101, allowing the handcart 1 to move freely on the ground, meeting the movement requirements of indoor power equipment for the 72.5kV disconnector. The handle 103 is installed on one side of the base frame 101, allowing operators to easily push or pull the handcart 1 to move it.

[0028] Bracket 2 is mounted on the handcart 1 to support components such as the crossbeam 3. The crossbeam 3 is mounted above bracket 2 and includes a laterally extending base. The upper and lower edges of the base are bent towards the same side to form a bend, and a through hole is provided in the bend. Through the engagement of bolts with the through holes, the crossbeam 3, bracket 2, and supporting insulator 4 can be fixed together to form a stable structural system. The supporting insulator 4 is mounted above the crossbeam 3 to support components such as the connecting conductor 5 and to ensure that the entire disconnecting switch has sufficient insulation performance.

[0029] The structure of the connecting conductor 5 can be seen from Figure 1 and Figures 4 to 6 which comprises a conductive plate 501 and a terminal block 502. One end of the terminal block 502 is mounted on one side of the conductive plate 501, the middle part of the terminal block 502 can be fixed with the support insulator 4, and the other end of the terminal block 502 is connected with the isolation plug 6. In this way, the connecting conductor 5 can stably transmit current.

[0030] The structure of the isolation plug 6 can be seen from Figure 7 which comprises an isolation moving contact 601, a moving contact seat 602, a static contact 603 and a circuit breaker connecting seat 604. The isolation moving contact 601 is connected with the terminal block 502, the moving contact seat 602 is fixed on one side of the isolation moving contact 601 and cooperates with the static contact 603. The static contact 603 can be fixed with the circuit breaker through the circuit breaker connecting seat 604, so as to realize the isolation and connection of the circuit.

[0031] On the other hand, in order to improve safety, the handcart 1 is also provided with an isolation net 7. The structure of the isolation net 7 can be seen from Figure 5 which comprises a frame 701 and a steel wire mesh 702 inside the frame 701. The edges of the steel wire mesh 702 are welded and fixed with the frame 701, forming a stable protection structure. The setting of the isolation net 7 can prevent the operator from accidentally touching the live parts, ensuring the safety of the operation process. In addition, the frame 701 is welded by angle steel, and a steel plate 703 is also arranged inside the frame 701, the two ends of the steel plate 703 are respectively welded and fixed with the frame, when the steel wire mesh 702 is installed, the steel wire mesh 702 is fixed with the angle steel by spot welding, and then the steel plate 703 is crimped, the steel plate 703 is welded and fixed with the steel wire mesh, so as to improve the reliability of the steel wire mesh.

[0032] In actual use, the operator can push or pull the handcart 1 by the handle 103 to move it to the desired position. Then, by operating the connection and disconnection of the isolation plug 6 with the circuit breaker, the isolation and connection of the circuit are realized. The whole operation process is simple, flexible and safe and reliable.

[0033] Example 2

[0034] The difference between this embodiment and example 1 is that the specific structure of the cross beam 3 and the support 2 is different.

[0035] In this embodiment, the number of through holes provided on the bent part of the cross beam 3 can be adjusted according to actual needs to adapt to different installation requirements. At the same time, the shape and size of the support 2 can also be designed according to actual needs to ensure its stable connection with the cross beam 3, the support insulator 4 and other components.

[0036] In summary, the 72.5kV handcart type isolating switch has the advantages of simple structure, safety and reliability, flexible operation, and can meet the mobile demand of indoor power equipment for 72.5kV isolating switch.

[0037] In the description of the utility model, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of describing the utility model and not for requiring the utility model to be necessarily constructed or operated in a particular orientation, and therefore should not be understood as limiting the utility model. In the utility model, "connected" and "connected" should be understood broadly, for example, it can be connected, or it can be detachably connected, it can be directly connected, or it can be indirectly connected through an intermediate component, and those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novelty disclosed herein.

Claims

1. A 72.5 kV trolley disconnector, characterized in that, The utility model provides a kind of isolating device, including handcart (1), bracket (2) is installed on handcart (1), crossbeam (3) is installed on bracket (2), support insulator (4) and connecting conductor (5) are installed above crossbeam (3), isolating plug (6) is installed on the side of connecting conductor (5) and one end of isolating plug (6) is fixed with the one end of connecting conductor (5), the other end of isolating plug (6) can be connected with circuit breaker.

2. The 72.5 kV handcart disconnect switch of claim 1, wherein, The handcart (1) includes a chassis (101), and a wheel (102) is installed below the chassis (101). A handle (103) is installed on one side of the chassis (101).

3. The 72.5 kV handcart disconnect switch of claim 2, wherein, The crossbeam (3) includes a horizontally extending base body, and the upper and lower edges of the base body are bent towards the same side to form bent portions. The bent portions are provided with through holes that cooperate with bolts to fix the crossbeam (3) with the bracket (2) and the support insulator (4).

4. The 72.5 kV handcart disconnect switch of claim 3, wherein, The connecting conductor (5) includes a conductive plate (501) and a terminal block (502). One end of the terminal block (502) is installed on one side of the conductive plate (501), the middle part of the terminal block (502) can be fixed with the support insulator (4), and the other end of the terminal block (502) is connected with the isolating plug (6).

5. A 72.5 kV handcart disconnector according to any one of claims 1 to 4, characterized in that, The isolating plug (6) includes an isolating movable contact (601), a movable contact seat (602), a static contact (603), and a circuit breaker connecting seat (604). The isolating movable contact (601) is connected with the terminal block (502). The movable contact seat (602) is fixed on one side of the isolating movable contact (601) and cooperates with the static contact (603). The static contact (603) can be fixed with the circuit breaker through the circuit breaker connecting seat (604).

6. The 72.5 kV handcart disconnect switch of claim 1, wherein, The handcart (1) is further provided with an isolating net (7). The isolating net (7) includes a frame (701) and a steel wire mesh (702) inside the frame (701). The edges of the steel wire mesh (702) are welded and fixed with the frame (701).

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