High-pressure hand-operating mechanism

A manual mechanism and high-voltage technology, applied in the direction of contact operating parts, air switch components, etc., can solve the problems of laborious closing structure and lack of buffer structure, etc., and achieve the effect of preventing reverse displacement and improving independence

Inactive Publication Date: 2022-07-29
NANTONG QUNYE MECHANICAL PARTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-voltage manual mechanism to solve the problems related to the opening and closing of the existing high-voltage manual structure proposed in the above-mentioned background technology, such as the relatively laborious closing structure and the lack of a buffer structure.

Method used

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  • High-pressure hand-operating mechanism
  • High-pressure hand-operating mechanism
  • High-pressure hand-operating mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1, as Figure 1-3 As shown, when the device is opening the gate, at this time, the manual push rod 206 is pushed to drive the connecting rod 207 to rotate, and the connecting rod 207 drives the inner pawl 203 and the outer pawl 205 provided on the outside thereof to jointly push the ratchet 201 to rotate. , the rotation of the ratchet wheel 201 drives the rotation shaft 17 to rotate, and then the rotation of the rotation shaft 17 drives the hinge block 16 on the outer side to rotate, and the rotation of the hinge block 16 pulls the buffer piston 15 for displacement and pushes the hinge column 8 to move upward. The hinge block 16 is supported by the buffer piston 15. When the connecting rod 207 rotates to a position where it is inconvenient to continue to rotate manually at the top, at this time, the manual push rod 206 is reversely rotated to drive the connecting rod 207 to reset. At this time, the inner pawl 203 The one-way meshing state with the inner ratchet ...

Embodiment 2

[0038] Example 2, as Figure 4-6 As shown in the figure, the piston rod 22 on the side of the buffer piston 15 is driven by the hinge block 16 to displace so as to generate a squeezing or stretching force on the buffer piston 15, and then the control valve 21 is driven by the piston rod 22 to displace inside the buffer piston 15. The inside of the buffer piston 15 is filled with hydraulic oil, and one end of the buffer piston 15 is provided with a high-pressure nitrogen gas tank 19, so that the inside of the buffer piston 15 is in a high pressure state, and when the control valve 21 is displaced, the hydraulic oil on both sides is The pressure is inconsistent, thereby forcing the hydraulic oil to enter the interior of the installation cavity 27 through the oil inlet passage 28 and push the piston 30 to displace, and at the same time, the compression spring B29 generates a rebound force, so that the high pressure hydraulic oil on one side passes through the oil inlet passage 28 ...

Embodiment 3

[0039] Example 3, as Figure 1-6 As shown in the figure, when closing is required, the manual push rod 206 on the other side of the casting base 1 is rotated to drive the connecting rod 207 to push the ratchet wheel 201 to rotate in the reverse direction, thereby driving the rotating shaft 17 to displace in the reverse direction, and to drive the hinged joint through the rotating shaft 17 The block 16 is reversely rotated to reset, thereby further driving each component to reset, thereby realizing the function of closing.

[0040] Working principle: When the device is in use, the manual mechanism assembly 2 with two sets of reverse structures is provided to achieve independent control of the opening and closing of the high-pressure structure, and the one-way rotation structure inside the manual mechanism assembly 2 and the buffer piston 15 The internal pressure change control cooperates with each other, so as to realize the displacement and support functions of the hinge block...

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PUM

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Abstract

The invention discloses a high-voltage hand-operating mechanism which comprises a casting base body, a post insulator A and a post insulator B are arranged on the two sides of the top of the casting base body respectively, and mounting columns are arranged on the top of the post insulator A and the top of the post insulator B; manual mechanism assemblies are arranged on the two sides of the casting base body, a manual push rod is rotated to drive an outer pawl and an inner pawl connected with a connecting rod to push a ratchet wheel to rotate, then a rotating shaft is driven to rotate, and the rotating shaft rotates to drive a hinge block on the outer side of the rotating shaft to rotate; the hinge block further pushes the pull rod insulator at the top of the hinge column to move, the pull rod insulator supports the conductive knife switch to drive the movable contact and the static contact to be opened and closed, the hinge block is supported through the buffer piston at the moment, and therefore reverse displacement of the hinge block is prevented; the weight of the hinge column and the pull rod insulator is pressed down in the rising process, and the falling buffering function is achieved.

Description

technical field [0001] The invention relates to the technical field of high-voltage isolation, in particular to a high-voltage manual mechanism. Background technique [0002] High-voltage isolating switch is an important switching appliance in the electrical system of power plants and substations, and needs to be used in conjunction with high-voltage circuit breakers. The isolating switch is suitable for indoor installations with three-phase AC 50Hz and rated voltage 12KV. It is used to connect, cut off or convert the line under the condition of voltage and load of high-voltage equipment. Its main functions are: to ensure the safety of high-voltage electrical equipment and devices during maintenance work, to isolate the voltage, and its opening and closing structure It is a manual mechanism. The structure of the existing high-voltage isolation switch is divided into single-column type, double-column type and three-column type according to the number of insulating posts. Ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H31/02H01H3/02
CPCH01H31/02H01H3/02
Inventor 丁海群孙米娜蒙朝菊金兴红
Owner NANTONG QUNYE MECHANICAL PARTS CO LTD
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