A special tool for operating high clearance

Abstract

The application provides a special tool for operating high air switch, which comprises an operating rod and an operating head. The operating rod is made of non-conductive material. One end of the operating rod is used for holding by an operator, and the other end is provided with the operating head. The operating head is a resilient clamping jaw, and the resilient clamping jaw has a resilient clamping position for clamping the air switch. The operating head at the distal end of the operating rod with a certain length is clamped on the gate operating handle of the air switch, and the gate operating handle of the air switch is pulled upward or downward to realize the closing or opening of the air switch. The special tool with the above structure is small and light, and is convenient to take and use in the electrical panel operation process of the nuclear power station.

Description

Technical Field

[0001] This invention belongs to the technical field of power plant operation and construction tools, and specifically relates to a special tool for operating high-altitude circuit breakers. Background Technology

[0002] In nuclear power plants, the medium voltage switchgear is a key component of the power distribution system. It is responsible for converting high-voltage power to medium voltage and further distributing it to various load points. The main functions of the medium voltage switchgear include power distribution, protection, and control.

[0003] Typically, existing medium-voltage electrical panels are divided into upper and lower sections. When operating the air switch in the upper section, a ladder or stool is required for assistance due to its height. Furthermore, the operating equipment is bulky and inconvenient, and there is a significant risk of accidental contact.

[0004] In emergency operations, the need to move ladders or stools from a distance also affects the efficiency of intervention, making intervention untimely.

[0005] To facilitate operation, a special tool can be developed to overcome technical difficulties based on the actual site conditions, thereby improving work efficiency and reducing the risk of accidental equipment contact. Summary of the Invention

[0006] The purpose of this invention is to provide a special tool for operating high-level circuit breakers, which is easy to pick up and use.

[0007] To solve the above-mentioned technical problems, the present invention provides a special tool for operating high-altitude air switches, including an operating rod and an operating head. The operating rod is made of a non-conductive material. One end of the operating rod is for the operator to hold, and the other end is provided with the operating head. The operating head is an elastic pawl, and the elastic pawl has an elastic clamping position for clamping the gate operating handle of the air switch.

[0008] Optionally, in the above-mentioned special tool for operating high-altitude air switches, the operating lever and the operating head are either an integral structure or detachably connected.

[0009] Optionally, in the above-mentioned special tool for operating high-altitude switches, one end of the operating lever is provided with anti-slip treads or an anti-slip pad.

[0010] Optionally, in the above-mentioned special tool for operating high-altitude circuit breakers, the operating lever is a rigid plastic operating lever or a rubber operating lever.

[0011] Optionally, in the above-mentioned special tool for operating high-altitude open switches, the elastic chuck includes multiple short rods, and one end of each short rod is provided with a protrusion facing the elastic clamping position.

[0012] Optionally, in the above-mentioned special tool for operating high-altitude open circuits, the other end of each of the short rods is disposed on the other end side wall of the operating rod.

[0013] Optionally, in the special tool for operating the high-altitude open circuit described above, the protrusion of the short rod is hemispherical.

[0014] Optionally, in the above-mentioned special tool for operating high-altitude switches, the operating lever is a telescopic structure.

[0015] Optionally, in the above-mentioned special tool for operating high-altitude circuit breakers, the operating lever includes an inner tube, an outer tube, and a fastener. The outer tube is sleeved on the outside of the inner tube, and the fastener is used to restrict the relative movement of the inner tube and the outer tube.

[0016] Optionally, in the above-mentioned special tool for operating high-altitude circuit breakers, the operating lever includes an inner tube, an outer tube, and a linear motor. The outer tube is sleeved on the outside of the inner tube, and the two ends of the linear motor are respectively connected to the inner tube and the outer tube.

[0017] This invention provides a special tool for operating high-altitude circuit breakers, which has the following advantages:

[0018] Using an operating lever of a certain length, the distal end of which is engaged with the operating handle of the air switch, the air switch is closed or opened by moving the operating handle upwards or downwards. This specialized tool is compact, lightweight, and easy to handle, making it convenient for use during the operation of electrical panels in nuclear power plants. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a special tool for operating a high-level circuit breaker, provided in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of a nuclear power plant air switch provided in an embodiment of the present invention.

[0022] In the image above:

[0023] 100 - Operating lever; 200 - Operating head; 210 - Protrusion;

[0024] A - Air switch; B - Gate operating handle. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] The core of this invention is to provide a special tool for operating high-level circuit breakers, which is easy to pick up and use.

[0027] To enable those skilled in the art to better understand the technical solutions provided by the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] For details, please refer to Figures 1-2 The present invention provides a special tool for operating a high-level circuit breaker, comprising an operating lever 100 and an operating head 200.

[0029] The operating lever 100 is made of non-conductive material. One end of the operating lever 100 is for the operator to hold, and the other end is equipped with an operating head 200. The operating lever 100 has a certain length, and its operating head 200 can be sent to the gate operating handle B of the air switch A at a high altitude.

[0030] The operating head 200 is a flexible jaw, which has a flexible clamping position for clamping the gate operating handle B of the air switch A.

[0031] The specialized tool provided in this solution for operating high-level circuit breakers utilizes an operating rod 100 of a certain length, with its distal operating head 200 engaging with the gate operating handle B of circuit breaker A. Moving the gate operating handle B of circuit breaker A upwards or downwards closes or opens circuit breaker A. This specialized tool is compact, lightweight, and easy to handle, facilitating its use during the operation of electrical panels in nuclear power plants.

[0032] In one embodiment, the operating lever 100 and the operating head 200 can be an integral structure, which helps to improve the overall structural strength. In another embodiment, the operating lever 100 and the operating head 200 can also be detachably connected, such as by snap-fit ​​connection or other fasteners, so as to facilitate replacement when the operating head 200 is worn or broken.

[0033] To improve handheld stability and anti-slip performance, one end of the operating lever 100 is provided with anti-slip grooves or an anti-slip pad. The anti-slip pad can be attached to one end of the operating lever 100 by adhesive or other means, and the anti-slip grooves can be made by cutting or creating slanted grooves at one end of the operating lever 100.

[0034] Furthermore, the operating lever 100 can be made of non-conductive materials such as hard plastic or rubber. The operating lever 100 can also be a cylindrical lever, specifically, a cylindrical lever with a diameter of 2cm and a length of 40cm can be selected.

[0035] In a specific embodiment, the elastic gripper includes multiple short rods, each short rod having a protrusion 210 at one end facing the elastic clamping position and an operating rod 100 at the other end of its sidewall. The number of short rods can be two, three, or even more, and the multiple short rods are spaced apart circumferentially.

[0036] In a specific embodiment, the protrusion 210 of the short rod is hemispherical, which facilitates the smooth insertion of the gate operating handle B into the elastic clamping position.

[0037] like Figure 1 As shown, the operating head 200 consists of two short rods with inward protrusions. When it is necessary to perform closing or opening operations on the air switch A, the operating head 200 is aligned with the gate operating handle B and the end cover of the air switch A. One end is locked onto the gate operating handle B, and the other end is locked onto the plastic shell on the upper or lower part of the gate operating handle B. The gate operating handle B is then moved up or down to close or open the gate operating handle B.

[0038] In a specific embodiment, the operating lever 100 is a telescopic structure. Specifically, the length of the operating lever 100 can be adjusted by telescopically extending or retracting according to the actual operating height to achieve high-altitude operations.

[0039] In one embodiment, the operating lever 100 includes an inner tube, an outer tube, and a fastener. The outer tube is fitted over the outer side of the inner tube, and the fastener restricts the relative movement of the inner and outer tubes. The relative position of the inner and outer tubes is adjusted by manual pulling, and the fastener further restricts their relative movement. For example, several slots can be provided along the length of the inner and outer tubes, with pins acting as fasteners to engage them. Alternatively, threaded holes can be provided on the outer tube, with locking bolts acting as fasteners. The end of the fastener presses against the inner tube, thus restricting their relative movement.

[0040] In another embodiment, the operating lever 100 includes an inner tube, an outer tube, and a linear motor. The outer tube is fitted over the outer side of the inner tube, and the two ends of the linear motor are connected to the inner tube and the outer tube, respectively. A switch controls the start and stop of the linear motor, thereby moving the inner and outer tubes to the desired position.

[0041] The beneficial effects of the technical solution provided by this invention are as follows:

[0042] 1. Wide range of applications: The integrated design is compact and lightweight. It is non-conductive and can be used not only in 6.6kV medium-voltage electrical panels in nuclear power plants, but also in air switches A at similar heights in all electrical panels.

[0043] 2. Reduced human risk: It reduces the risk of accidental collisions and industrial safety risks caused by moving heavy auxiliary tools.

[0044] 3. Easy to operate: The special tools are small and lightweight, which can save a lot of manpower and resources, and greatly save unnecessary preparation time during emergency intervention.

[0045] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0046] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" are not specifically singular and may include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.

[0047] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0048] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0049] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A special tool for operating high-altitude circuit breakers, characterized in that, It includes an operating lever (100) and an operating head (200). The operating lever (100) is made of a non-conductive material. One end of the operating lever (100) is for the operator to hold, and the other end is provided with the operating head (200). The operating head (200) is an elastic claw, and the elastic claw has an elastic clamping position for clamping the gate operating handle (B) of the air switch (A).

2. The special tool for operating high-level circuit breakers according to claim 1, characterized in that, The operating lever (100) and the operating head (200) are either an integral structure or detachably connected.

3. The special tool for operating high-level air switches according to claim 1, characterized in that, One end of the operating lever (100) is provided with anti-slip twill or anti-slip pad.

4. The special tool for operating high-level circuit breakers according to claim 1, characterized in that, The operating lever (100) is a hard plastic operating lever or a rubber operating lever.

5. The special tool for operating high-level circuit breakers according to claim 1, characterized in that, The elastic gripper includes a plurality of short rods, and one end of each short rod is provided with a protrusion (210) facing the elastic clamping position.

6. The special tool for operating high-level circuit breakers according to claim 5, characterized in that, The other end of each of the short rods is disposed on the other side wall of the operating rod (100).

7. The special tool for operating high-level circuit breakers according to claim 5, characterized in that, The protrusion (210) of the short rod is hemispherical.

8. The special tool for operating high-level circuit breakers according to claim 1, characterized in that, The operating lever (100) is a telescopic structure.

9. The special tool for operating high-level circuit breakers according to claim 8, characterized in that, The operating lever (100) includes an inner tube, an outer tube, and a fastener. The outer tube is sleeved on the outside of the inner tube, and the fastener is used to restrict the relative movement of the inner tube and the outer tube.

10. The special tool for operating high-level circuit breakers according to claim 8, characterized in that, The operating lever (100) includes an inner tube, an outer tube, and a linear motor. The outer tube is sleeved on the outside of the inner tube, and the two ends of the linear motor are connected to the inner tube and the outer tube, respectively.

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