A manual operation structure based on the GW4-126DW type disconnector

Abstract

The present invention discloses a manual operation structure based on a GW4-126DW type disconnecting switch, belonging to the technical field of power switch devices; it includes a cement pier column; a switch chassis is installed on the upper top of the cement pier column; an operation base is installed on the lower side end face of the cement pier column; the switch chassis and the operation base are connected by a transmission rod; an operation hole is formed in the operation base; an operation rod is detachably installed on the operation base through the operation hole; and a transmission device is arranged in the operation base, and the operation rod is connected to the transmission rod through the transmission device; a pin hole is also formed in the operation base; the pin hole is communicated with the operation hole, and a plug pin is detachably installed on the operation rod through the pin hole. The present invention solves the problem that when using a crank to control the disconnecting switch, the crank is prone to fall off, resulting in an operation interval, and further leading to the generation of an arcing phenomenon, which poses a safety hazard.

Description

Technical Field

[0001] The present invention belongs to the technical field of power switch devices, and particularly relates to a manual operation structure based on a GW4-126DW type disconnector. Background Art

[0002] The GW4-126DW type outdoor high-voltage AC disconnector (hereinafter referred to as the disconnector) is a three-phase high-voltage electrical appliance for outdoor environments. It can be frequently operated or repeatedly interrupted short-circuit current within the working current range, thus achieving the effect of on-off protection control for the circuit system. Its installation mainly uses a cement pier to support the base of the disconnector in the air, and at the same time, an operation base and a transmission rod are set to realize manual operation of the disconnector by humans. During actual operation, one end of the crank is inserted into the operation base, and the crank is rotated to drive the transmission rod, thereby achieving the control effect on the disconnector. However, in this process, due to the lack of effective positioning measures after the crank is inserted into the operation base, it is easy to fall off when manually rotating the crank, which causes intervals in the operation of the disconnector and results in arcing phenomena. This is the problem currently faced. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to provide a manual operation structure based on a GW4-126DW type disconnector to solve the problem that the crank is prone to falling off when the disconnector is controlled by the crank, resulting in intervals in the operation and further causing arcing phenomena, thus posing a safety hazard.

[0004] To solve the above problems, the present invention provides the following technical solutions:

[0005] A manual operation structure based on a GW4-126DW type disconnector, which includes a cement pier column; a switch base is installed on the upper top of the cement pier column; an operation base is installed on the lower side end face of the cement pier column; the switch base and the operation base are connected by a transmission rod; an operation hole is opened on the operation base; an operation rod is detachably installed on the operation base through the operation hole; and a transmission device is arranged in the operation base, and the operation rod is connected to the transmission rod through the transmission device; a pin hole is also opened on the operation base; the pin hole is communicated with the operation hole, and a plug is detachably installed on the operation rod through the pin hole.

[0006] Preferably, the operation hole is a square hole structure; the operation rod includes a straight rod at one end that is matched with the square operation hole; a through hole is axially opened in the middle of the straight rod; a rotating shaft is rotatably installed in the support rod through the through hole.

[0007] Furthermore, a handle in an L-shaped rod structure is installed at the end of the straight rod of the operation rod that is not inserted into the operation base; and an anti-slip sleeve is also arranged on the outer side wall of the handle.

[0008] Preferably, a ring frame is provided on the cement pier column; the operation base is detachably installed on the cement pier column through the ring frame; a fixing sleeve coaxial with the transmission rod is sleeved outside the transmission rod; the fixing sleeve is of a two-piece structure, and its two ends are respectively installed on the switch chassis and the operation base, and a connecting flange is provided in the middle of the fixing sleeve.

[0009] Advantages of the present invention:

[0010] The present invention improves the manual operation result of a common disconnector installed on a cement pier frame. By providing a pin hole and an operation hole communicating with each other on the operation base and respectively using an operation rod and a pin, the operation rod is positioned and installed on the operation base by the pin, thus effectively solving the problem that when using a crank to control the disconnector, the crank is prone to falling off, resulting in an interval in the operation, and further causing the generation of an arcing phenomenon, which poses a safety hazard; on the other hand, the present invention also has the advantages of simple structure, reliable anti-detachment and anti-slip, convenient transformation, and easy disassembly and assembly. Description of the drawings

[0011] Figure 1 is a schematic structural diagram of the present invention in the embodiment;

[0012] Figure 2 is Figure 1 the left view of

[0013] Figure 3 is a partial sectional view at the position of the connecting flange in this embodiment;

[0014] Description of reference numerals: 1, cement pier column; 2, switch chassis; 3, operation base; 4, transmission rod; 5, operation rod; 6, pin; 7, ring frame; 8, fixing sleeve; 31, operation hole; 32, pin hole; 51, straight rod; 52, rotating shaft; 53, handle; 54, anti-slip sleeve; 81, connecting flange. Detailed implementation manners

[0015] The present invention will be further introduced below in conjunction with the drawings and specific embodiments:

[0016] Embodiment:

[0017] Refer to Figure 1, this embodiment provides a manual operation structure based on a GW4-126DW type disconnecting switch, which includes a cement pier 1; a switch chassis 2 is installed on the upper top of the cement pier 1; an operation base 3 is installed on the lower side end face of the cement pier 1; the switch chassis 2 and the operation base 3 are connected by a transmission rod 4; an operation hole 31 is opened on the operation base 3; an operation rod 5 is detachably installed on the operation base 3 through the operation hole 31; and a transmission device is arranged inside the operation base 3, and the operation rod 5 is connected to the transmission rod 4 through the transmission device; a pin hole 32 is also opened on the operation base 3; the pin hole 32 communicates with the operation hole 31, and a plug 6 is detachably installed on the operation rod 5 through the pin hole 32.

[0018] The operation hole 31 is a square hole structure; the operation rod 5 includes a straight rod 51 at one end that matches the operation hole 31 of the square hole; a through hole is axially opened in the middle of the straight rod 51; a rotating shaft 52 is rotatably installed in the support rod 51 through the through hole. The square hole structure of the operation hole 31 and the straight rod 51 as the support kit of the rotating shaft 52 can effectively improve the installation stability of the operation rod 5 in the operation base 3; ensure that the outer circumference of the operation rod 5 does not rotate, and realize the free rotation of the rotating shaft 51.

[0019] An L-shaped rod structure handle 53 is also installed at the end of the straight rod 51 of the operation rod 5 that is not inserted into the operation base; and an anti-slip sleeve 54 is also arranged on the outer side wall of the handle 53. The purpose of setting the handle 53 and the anti-slip sleeve 54 is to improve the operation comfort when manually rotating the operation rod 5 and play a certain anti-slip effect.

[0020] A ring frame 7 is arranged on the cement pier 1; the operation base 3 is detachably installed on the cement pier 1 through the ring frame 7; a fixing sleeve 8 coaxial with the transmission rod 4 is sleeved outside the transmission rod 4; the fixing sleeve 8 is a two-piece structure, and its two ends are respectively installed on the switch chassis 2 and the operation base 3, and a connecting flange 81 is arranged in the middle of the fixing sleeve 8. In this embodiment, since the upper main body of the switch base is a three-phase circuit and the number of cement piers 1 is one, which is only arranged in the middle position of the switch base, the ring frame 7 can be used to control the positions of the switch chassis 2 of adjacent two circuits. At the same time, setting the two-piece structure of the fixing sleeve 8 and the connecting flange 81 at its opposite ends can effectively improve the convenience during the disassembly and assembly of the device.

Claims

1. A manual operation structure based on a GW4-126DW type disconnector, which comprises a cement pier (1); a switch chassis (2) is installed on the upper top of the cement pier (1); an operation base (3) is installed on the lower side end face of the cement pier (1); the switch chassis (2) and the operation base (3) are connected by a transmission rod (4). It is characterized in that: An operation hole (31) is formed in the operation base (3); an operation rod (5) is detachably installed on the operation base (3) through the operation hole (31); and a transmission device is arranged in the operation base (3), and the operation rod (5) is connected to the transmission rod (4) through the transmission device; a pin hole (32) is also formed in the operation base (3); the pin hole (32) communicates with the operation hole (31), and a plug pin (6) is detachably installed on the operation rod (5) through the pin hole (32); the operation hole (31) is a square hole structure; the operation rod (5) includes a straight rod (51) at one end which is matched with the square operation hole (31); a through hole is axially formed in the middle of the straight rod (51); a rotating shaft (52) is rotatably installed in the straight rod (51) through the through hole; a handle (53) in an L-shaped rod structure is also installed at the end of the straight rod (51) of the operation rod (5) where it is not inserted into the operation base; and an anti-slip sleeve (54) is also arranged on the outer side wall of the handle (53); a ring frame (7) is arranged on the cement pier (1); the operation base (3) is detachably installed on the cement pier (1) through the ring frame (7); a fixed sleeve (8) coaxial with the transmission rod (4) is sleeved on the outer side of the transmission rod (4); the fixed sleeve (8) is of a two-section structure, and its two ends are respectively installed on the switch chassis (2) and the operation base (3), and a connecting flange (81) is arranged in the middle of the fixed sleeve (8).

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