Power-failure-free installation tool for double-confirmation identification device of disconnecting link of transformer substation

Abstract

The utility model relates to a power-failure-free installation tool for a double-confirmation identification device of a disconnecting link of a transformer substation, and belongs to the technical field of installation tools. Comprising a clamping tool and a fixing tool which are mutually independent, the clamping tool comprises a clamping frame, an insulation supporting rod and an insulation rope, the clamping frame is installed at the top end of the insulation supporting rod, the insulation rope is installed at the tail end of the clamping frame and used for opening the clamping frame, and the clamping frame is used for clamping an identification device; the fixing tool comprises a bit, a commutator, a connecting rod, a bearing seat, a rocker and an insulating sleeve, the bit is connected with one end of the commutator, the other end of the commutator is rotatably connected to the top end of the bearing seat through the connecting rod, the insulating sleeve is installed on the bottom face of the bearing seat, the rocker is rotatably connected into the insulating sleeve, and the bottom end of the rocker is located on the bottom face of the insulating sleeve. And the fixing tool is used for fixing the clamping tool to clamp the identification device. According to the utility model, the problem that a conventional disconnecting link position identification device needs to be installed in a power-off manner in the installation process is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of installation tools, and in particular relates to an installation tool for a double confirmation identification device of a transformer substation switch without power outage. Background Art

[0002] The knife switch, also known as the high-voltage disconnector, is a major equipment in the substation. In the long-term operation, various reasons may cause the knife switch to fail to close properly. The existing judgment of closing properly mainly relies on the auxiliary contacts of the knife switch. Since the knife switch is basically placed outdoors for work, it has to face the problems of sun and rain, metal corrosion damage and wear. The abnormality of the auxiliary contacts or its transmission part will lead to misjudgment of the opening and closing positions, upload wrong signals, threaten the safety and life cycle of the equipment, and even cause major power accidents, resulting in significant casualties and property losses. Therefore, the existing inspection of the knife switch is carried out by sending inspection personnel to the site to observe with the naked eye, but since the substations are mostly distributed in more remote places, the number of knife switches in each substation is also large, and on-site observation is not only time-consuming but also laborious. In addition, with the continuous development of society, the number of substations and knife switches used is also increasing. In order to quickly detect the closing status of many knife switches at the same time, more human resources are required than before.

[0003] With the continuous improvement of living standards, it is necessary to comprehensively promote the automation of substations to improve the efficiency of various programmed operations. However, the current situation that the maintenance of knife switches requires substation operators to check the knife switches on site has seriously restricted the advancement of integrated control construction. Therefore, in order to avoid misjudgment of the knife switch position status based on the single criterion of the knife switch auxiliary contact remote signal, it is necessary to install a knife switch position identification device to assist in identifying the knife switch opening and closing status. As a newly added second criterion for the position of non-homologous knife switches, it is combined with the first criterion of the auxiliary remote signal node signal of the knife switch to form a double confirmation. However, the installation of the knife switch position identification device often requires power outage installation due to insufficient safety distance, which seriously affects work efficiency. Utility Model Content

[0004] In order to solve the above-mentioned problems existing in the prior art, the utility model provides a power-off-free installation tool for a substation knife switch double confirmation identification device, which solves the problem that when installing a knife switch position identification device to assist in identifying whether the knife switch is in place, a power outage is required for installation, which affects work efficiency and also affects the normal operation of the power grid.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a power-off-free substation knife switch double confirmation identification device installation tool, including a clamping tool and a fixing tool that are independent of each other, the clamping tool including a clamping frame, an insulating support rod and an insulating rope, the clamping frame is installed at the top of the insulating support rod, the insulating rope is installed at the tail end of the clamping frame and is used to open the clamping frame, the clamping frame is used to clamp the identification device, the fixing tool includes a screwdriver bit, a commutator, a connecting rod, a bearing seat, a remote rod and an insulating sleeve, the screwdriver bit is connected to one end of the commutator, the other end of the commutator is rotatably connected to the top of the bearing seat through a connecting rod, the insulating sleeve is installed on the bottom surface of the bearing seat, the remote rod is rotatably connected to the insulating sleeve and the bottom end is located on the bottom surface of the insulating sleeve, and the fixing tool is used to fix the clamping tool to clamp the identification device.

[0006] As a preferred technical solution of the utility model, the clamping frame includes an upper clamping plate, a lower clamping plate, a pull plate and a torsion spring. The tail ends of the upper clamping plate and the lower clamping plate are rotatably connected to the torsion spring and the front ends of the upper clamping plate and the lower clamping plate abut against each other. One end of the pull plate is connected to the tail end of the upper clamping plate, and the insulating rope is installed at the other end of the pull plate.

[0007] As a preferred technical solution of the utility model, the side walls opposite to each other of the upper clamping plate and the lower clamping plate are provided with a plurality of clamping teeth.

[0008] As an optimal technical solution of the utility model, the clamping tool also includes a deformable metal tube and two connecting brackets, the two connecting brackets are respectively installed at both ends of the deformable metal tube, the clamping frame is installed on the top surface of one connecting bracket, and the insulating support rod is installed on the bottom surface of the other connecting bracket.

[0009] As a preferred technical solution of the present utility model, the commutator is a 90° commutator.

[0010] As a preferred technical solution of the utility model, the fixing tool further includes an extension rod, and the bit is connected to the commutator via the extension rod.

[0011] The beneficial effects of the utility model are as follows: the identification device is clamped by the clamping frame and then the identification device is clamped at the position to be installed on the knife switch, and then the screwdriver bit in the fixing tool is connected to the hexagon socket set screw on the identification device, and then the rocker is rotated to fix and lock the identification device, and then the clamping frame is loosened by pulling the insulating rope, so that the clamping frame loosens the identification device, thereby completing the installation of the identification device. Through the arrangement of the insulating support rod, insulating rope, screwdriver bit, commutator, remote rod and insulating sleeve, during the process of the identification device, it can be ensured that the construction personnel can carry out construction within a safe range and avoid entering the live area, which solves the problem that the existing installation of the knife switch position identification device to assist in identifying the knife switch opening and closing situation requires power outage installation, which affects the work efficiency and also affects the normal operation of the power grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the structure of the clamping tool of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the clamping frame of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the fixing tool of the utility model;

[0016] Main component symbols

[0017] In the figure: 1. Clamping tool; 11. Clamping frame; 111. Upper clamping plate; 112. Lower clamping plate; 113. Pull plate; 114. Torsion spring; 12. Insulating support rod; 13. Insulating rope; 14. Deformed metal tube; 15. Connecting bracket; 2. Fixing tool; 21. Batch bit; 22. Commutator; 23. Connecting rod; 24. Bearing seat; 25. Remote control rod; 26. Insulating sleeve; 27. Extension rod. DETAILED DESCRIPTION

[0018] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0019] See also Figure 1-Figure 3The present embodiment provides a power-off-free substation switch double confirmation identification device installation tool, including a clamping tool 1 and a fixing tool 2 that are independent of each other, the clamping tool 1 includes a clamping frame 11, an insulating support rod 12 and an insulating rope 13, the clamping frame 11 is installed at the top of the insulating support rod 12, the insulating rope 13 is installed at the tail end of the clamping frame 11 and is used to open the clamping frame 11, the clamping frame 11 is used to clamp the identification device, the fixing tool 2 includes a screwdriver 21, a commutator 22, a connecting rod 23, a bearing seat 24, a remote rod 25 and an insulating sleeve 26, the screwdriver 21 is connected to one end of the commutator 22, the other end of the commutator 22 is rotatably connected to the top of the bearing seat 24 through the connecting rod 23, the insulating sleeve 26 is installed on the bottom surface of the bearing seat 24, and the remote rod 25 is rotatably connected to the insulating sleeve 26. The insulating sleeve 26 is inside and the bottom end is located at the bottom surface of the insulating sleeve 26. The fixing tool 2 is used to fix the clamping tool 1 to clamp the identification device. When installing the identification device, the operator clamps the identification device through the clamping frame 11, and then holds the insulating support rod 12 to place the identification device at the position where the knife switch is to be installed. At this time, another operator holds the fixing tool 2, aligns the screwdriver bit 21 with the hexagon socket set screw on the identification device, and then rotates the rocker to drive the screwdriver bit 21 to rotate through the commutator 22 to completely lock the set screw on the identification device, thereby completing the installation of the identification device. After the installation is completed, pull the insulating rope 13 to allow the clamping frame 11 to loosen the identification device, thereby loosening the clamping tool 1 to install the next identification device.

[0020] When the identification device is fixed by the fixing tool 2, the rocker is manually rotated to input power, and the rocker drives the built-in transmission shaft in the insulating sleeve 26 to rotate, thereby driving the connecting rod 23 to rotate, and then the bit 21 is rotated through the commutator 22 to complete the locking of the set screw, thereby completing the installation of the identification device.

[0021] In live working, the most important thing is insulation. The tool shell used in this application is made of insulating material 3240 epoxy tube. The whole tool is connected and disassembled in multiple sections through the connection module, which is determined according to the height of the knife switch device installed on site. In this way, construction workers can carry out construction within a safe range and avoid entering the live area. This avoids the need for power outages for installation.

[0022] In order to better maintain the stability of the identification device during installation and to easily release the clamping of the identification device after fixation, in this embodiment, the clamping frame 11 includes an upper clamping plate 111, a lower clamping plate 112, a pulling plate 113 and a torsion spring 114. The tail ends of the upper clamping plate 111 and the lower clamping plate 112 are rotatably connected to the torsion spring 114, and the front ends of the upper clamping plate 111 and the lower clamping plate 112 abut against each other. One end of the pulling plate 113 is connected to the tail end of the upper clamping plate 111, and the insulating rope 13 is installed on the other end of the pulling plate 113. The tail ends of the upper clamping plate 111 and the lower clamping plate 112 are connected to the torsion spring 114, so that the torsion spring 114 itself is in the initial stage. The elastic force brought about makes the front ends of the upper clamping plate 111 and the lower clamping plate 112 abut against each other, so that there is a continuous clamping force between the upper clamping plate 111 and the lower clamping plate 112, so that when the identification device is clamped by the upper clamping plate 111 and the lower clamping plate 112, a stable clamping force can be maintained by the elastic force of the torsion spring 114. After the identification device is installed, the pulling plate 113 is rotated downward by pulling the insulating rope 13, thereby driving the upper clamping plate 111 to rotate upward, so that the angle between the upper clamping plate 111 and the lower clamping plate 112 is increased, thereby loosening the clamping of the identification device, allowing the clamping tool 1 to be detached from the installed identification device, facilitating the installation of the next identification device.

[0023] In order to make the identification device more stable during the clamping process, in one embodiment, the opposite side walls of the upper clamping plate 111 and the lower clamping plate 112 are provided with a plurality of clamping teeth. The serrated structure formed by the plurality of clamping teeth allows the clamping frame 11 to generate friction during the clamping process, thereby preventing the clamped object from slipping, thereby ensuring stability during the clamping process.

[0024] In order to better install the identification device in place, in one embodiment, the clamping tool 1 also includes a deformable metal tube 14 and two connecting brackets 15, the two connecting brackets 15 are respectively installed at the two ends of the deformable metal tube 14, the clamping frame 11 is installed on the top surface of one connecting bracket 15, and the insulating support rod 12 is installed on the bottom surface of the other connecting bracket 15. When installing the identification device, there is a large angle between the direction in which the operator holds the clamping tool 1 and the direction in which the identification device is installed. Therefore, the clamping direction of the clamping frame 11 is similar to its installation direction through the deformable metal tube 14 and the two connecting brackets 15 with a certain arc. Then, during the installation process, the deformable metal tube 14 itself can produce a certain deformation under the action of external force, so that the identification device can be better aligned with the required installation position during the clamping process, thereby better detecting the knife switch.

[0025] In order to better fix the identification device, in one embodiment, the commutator 22 is a 90° commutator 22, the fixing tool 2 is similar to the clamping tool 1, and the axial direction of the set screw on the identification device is horizontal when fixed. Therefore, the commutator 22 is a 90° commutator 22, which can better connect the bit 21 with the set screw, and at the same time, the rotation direction of the rocker in the vertical state can be converted to the horizontal direction, so as to better fix the identification device.

[0026] The identification device needs to detect the knife switch, and this is a live operation. Therefore, in order to prevent construction workers from working in a safe range and avoid their bodies entering the live area, in one embodiment, the fixing tool 2 also includes an extension rod 27, and the screwdriver bit 21 is connected to the commutator 22 through the extension rod 27. The extension rod 27 is used to extend the horizontal distance between the screwdriver bit 21 and the rocker arm, so that construction workers can work in a safe range, so that the identification device can be installed without power failure.

[0027] The above is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A power outage-free substation switch double confirmation identification device installation tool, characterized by: It comprises a clamping tool and a fixing tool which are independent of each other, the clamping tool comprises a clamping frame, an insulating support rod and an insulating rope, the clamping frame is installed at the top end of the insulating support rod, the insulating rope is installed at the tail end of the clamping frame and is used to open the clamping frame, the clamping frame is used to clamp the identification device, the fixing tool comprises a screwdriver bit, a commutator, a connecting rod, a bearing seat, a remote rod and an insulating sleeve, the screwdriver bit is connected to one end of the commutator, the other end of the commutator is rotatably connected to the top end of the bearing seat through the connecting rod, the insulating sleeve is installed on the bottom surface of the bearing seat, the remote rod is rotatably connected in the insulating sleeve and the bottom end is located on the bottom surface of the insulating sleeve, and the fixing tool is used to fix the clamping tool to clamp the identification device.

2. According to the power outage-free substation switch double confirmation identification device installation tool of claim 1, it is characterized by: The clamping frame includes an upper clamping plate, a lower clamping plate, a pulling plate and a torsion spring. The tail ends of the upper clamping plate and the lower clamping plate are rotatably connected to the torsion spring and the front ends of the upper clamping plate and the lower clamping plate abut against each other. One end of the pulling plate is connected to the tail end of the upper clamping plate, and the insulating rope is installed on the other end of the pulling plate.

3. According to claim 2, a power outage-free substation switch double confirmation identification device installation tool is characterized by: The side walls opposite to the upper clamping plate and the lower clamping plate are both provided with a plurality of clamping teeth.

4. According to the power outage-free substation switch double confirmation identification device installation tool of claim 1, it is characterized by: The clamping tool also includes a deformable metal tube and two connecting brackets, the two connecting brackets are respectively installed at both ends of the deformable metal tube, the clamping frame is installed on the top surface of one connecting bracket, and the insulating support rod is installed on the bottom surface of the other connecting bracket.

5. The installation tool for a power-off-free substation switch double confirmation identification device according to claim 1, characterized in that: The commutator is a 90° commutator.

6. The installation tool for a power-off-free substation switch double confirmation identification device according to claim 1, characterized in that: The fixing tool also includes an extension rod, and the bit is connected to the commutator via the extension rod.

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