Adjustable breaker contact baffle opening tool

Abstract

The utility model belongs to the technical field of central switch cabinets, and particularly relates to an adjustable breaker contact baffle opening tool which comprises a horizontal fixing support, a vertical operating rod fixedly connected with the horizontal fixing support is arranged at the bottom of the horizontal fixing support, a gear is arranged in the horizontal fixing support, and racks meshed with the gear are arranged at the top and the bottom of the gear. The two ends of the rack are fixed to the movable support, an adjusting switch is fixed to the gear in the axis direction, and a grooved rail type contact piece is welded to the end of the movable support. The movable baffle is simple in structure, flexible in operation, convenient to carry, low in cost and high in adaptability, an operator can open the movable baffle outside the cabinet, the working efficiency is improved, and the personal safety of the operator is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of center-mounted switch cabinets, and in particular relates to an adjustable circuit breaker contact baffle opening tool. Background Art

[0002] In recent years, the center-mounted switchgear has gradually become the mainstream product of switchgear in substations due to its stable operation, perfect "five protections", and convenient maintenance. This type of switchgear generally has a movable baffle that can automatically lower the circuit breaker contacts and the static contacts in the cabinet when the chassis vehicle is shaken out and pulled out of the cabinet compartment to ensure the safety of personnel during maintenance. However, when it is necessary to clean, repair, or test the electricity and phase of the static contacts, it is impossible to open the baffle conveniently and effectively, which causes inconvenience to maintenance personnel.

[0003] According to the existing technical equipment level, there are two solutions. First, in smaller substations, most switch cabinets are still opened manually, and often require at least two people to manually move the mechanical components in the warehouse, which not only has low labor efficiency, but also poses the risk of electric shock and mechanical strangulation. Second, in large substations with large units in China, special tools have begun to be used to open the baffles, but they are often frame carts made with the prototype of circuit breaker chassis vehicles, which are not only bulky in structure, but also difficult to adjust the width of use, and cannot meet the use requirements of different types of switch cabinets. Utility Model Content

[0004] The utility model aims to provide an adjustable circuit breaker contact baffle opening tool.

[0005] The utility model adopts the following technical solution to solve the technical problem: an adjustable circuit breaker contact baffle opening tool, comprising a horizontal fixed bracket, a vertical operating rod fixedly connected to the horizontal fixed bracket is provided at the bottom of the horizontal fixed bracket, a gear is provided inside the horizontal fixed bracket, a rack meshed with the gear is provided at the top and bottom of the gear, both ends of the rack are fixed to a movable bracket, an adjusting switch is fixed in the direction of the gear axis, and a grooved rail contact piece is welded at the end of the movable bracket.

[0006] Specifically, the front end of the groove-track contact piece is provided with an "eight"-shaped opening.

[0007] Specifically, the top of the vertical operating rod is fixedly connected to the bottom of the horizontal fixing bracket through a vertical operating rod fixing hole.

[0008] Specifically, an insulating protective sleeve is provided at the bottom of the vertical operating rod.

[0009] The utility model has the following beneficial effects: the utility model has a simple structure, flexible operation, convenient carrying, low cost, and high applicability; an operator can open the movable baffle outside the cabinet, which not only improves work efficiency but also ensures the personal safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Figure 2 This is the left side view of the grooved track contact.

[0012] In the figure: 1-insulating protective cover; 2-vertical operating rod; 3-horizontal fixed bracket; 4-movable bracket; 5-groove-type contact piece; 6-gear; 7-rack; 8-adjusting switch; 9-vertical operating rod fixing hole. DETAILED DESCRIPTION

[0013] The utility model will now be further described in detail with reference to the accompanying drawings.

[0014] like Figure 1-2 As shown, an adjustable circuit breaker contact baffle opening tool includes a vertical operating rod 2, an insulating protective cover 1, a horizontal fixed bracket 3, a grooved track contact piece 5, a movable bracket 4, a gear 6, a rack 7, and an adjusting switch 8. One end of the vertical operating rod 2 is connected to the insulating protective cover 1, and the other end is connected to the lower part of the horizontal fixed bracket 3. The grooved track contact piece 5 and the movable bracket 4 are welded together and move horizontally at the left and right ends.

[0015] The movable bracket 4, the horizontal fixed bracket 3, and the vertical operating rod 2 are all rectangular hollow components. The movable bracket 4 and the vertical operating rod 2 are slightly smaller than the horizontal fixed bracket 3 so that both can be inserted therein. The structure is simple, reliable, and easy to operate.

[0016] A through bolt hole is provided at the lower part of the horizontal fixed bracket 3, and a vertical operating rod fixing hole 9 is provided at the upper part of the vertical operating rod 2. The horizontal fixed bracket 3 and the vertical operating rod 2 are fixed by bolt connection. The vertical operating rod 2 can be removed when not in use for easy storage, thus solving the disadvantages of the chassis vehicle type tools being bulky and complicated.

[0017] A gear 6 and a rack 7 are provided in the horizontal fixed bracket 3. The rack 7 is fixedly connected to one end of the movable bracket 4. An adjusting switch 8 is fixed in the axial direction of the gear 6. The adjusting switch 8 can be rotated to drive the gear 6 and the rack 7 to engage and move, so that the movable brackets 4 on both sides can move inward and outward at the same time, thereby changing the tool width. The setting of the gear 6 and the rack 7 increases the telescopic distance of the contact pieces at both ends and improves the adaptability to different switch cabinet sizes.

[0018] A grooved rail contact 5 is welded to the other end of the movable bracket 4. The two grooved rails are opened outwards, and the front end is set to be an "eight"-shaped open shape for pushing and guiding the movement of the circuit breaker baffle component.

[0019] The horizontal fixing bracket 3 is made of stainless steel with high hardness. The material is treated with anti-oxidation and has high oxidation resistance and mechanical strength. Its structure is safe, firm and reliable.

[0020] The material of the vertical operating rod 2 has insulation properties and is made of high-quality epoxy glass fiber reinforced plastic pipe which has excellent insulation properties and mechanical strength, is light in weight, and has been treated with moisture-proofing.

[0021] The insulating protective sleeve 1 is an insulating heat shrink sleeve, which is made of a silicone rubber sleeve and a silicone rubber shed, and has excellent insulation performance and is safe and reliable.

[0022] The method of using the utility model is as follows: when in use, the operator holds the insulating protective cover 1, pushes the tool into the guide rail inside the switch cabinet, makes the groove-rail contact piece 5 touch the movable mechanism of the baffle inside the cabinet, and then compresses and pushes the movable component to slide between the groove rails through the "eight"-shaped open front end, at which time the operation of the component drives the movable baffle to open.

[0023] The stroke of the slotted horizontal contact member 5 can stably generate pressure on the movable component and has a self-locking effect to ensure that the baffle does not rebound.

[0024] The operator can rotate the adjustment switch 8 to drive the gear 6 and the rack 7 to mesh and move, so that the movable brackets 4 at both ends move inward and outward at the same time to achieve the width expansion and contraction effect, so as to be suitable for switch cabinets of different specifications and widths.

[0025] After use, the operator holds the insulating protective cover 1 and withdraws the tool along the original path, and the circuit breaker baffle is automatically closed.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable circuit breaker contact baffle opening tool, characterized in that: It includes a horizontal fixed bracket, a vertical operating rod fixedly connected to the bottom of the horizontal fixed bracket is provided, a gear is provided inside the horizontal fixed bracket, the top and bottom of the gear are provided with racks meshing with the gear, both ends of the rack are fixed to the movable bracket, an adjustment switch is fixed in the direction of the gear axis, and a grooved contact piece is welded at the end of the movable bracket.

2. The adjustable circuit breaker contact baffle opening tool according to claim 1, characterized in that: The front end of the groove-rail contact piece is provided with an "eight"-shaped opening.

3. The adjustable circuit breaker contact baffle opening tool according to claim 1, characterized in that: The top of the vertical operating rod is fixedly connected to the bottom of the horizontal fixing bracket through a vertical operating rod fixing hole.

4. The adjustable circuit breaker contact baffle opening tool according to claim 3, characterized in that: An insulating protective sleeve is provided at the bottom of the vertical operating rod.

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