An operating mechanism based on a double-throw four-pole switch

Abstract

The present invention discloses an operating mechanism based on a double-throw four-pole switch, which mainly includes: a first fixed plate module, a second fixed plate module, a transmission mechanism module, a four-pole knife head module and an operating mechanism module. The transmission mechanism module is rotatably arranged between the first fixed plate module and the second fixed plate module through a main shaft thereon; the four-pole knife head module is sleeved on the main shaft of the transmission mechanism module; the operating mechanism module is drivingly connected to the transmission mechanism module, and drives the transmission mechanism module to drive the four-pole knife head module thereon to rotate between the first fixed plate module and the second fixed plate module. The operating mechanism based on the double-throw four-pole switch provided by the present invention lays a technical foundation for realizing the maintenance of power distribution equipment, effectively guarantees the maintenance process of power distribution equipment, and ensures the safety of the maintenance of power distribution equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of switches, and particularly to an operating mechanism based on a double-throw four-pole switch. Background Art

[0002] At present, during the maintenance of power distribution equipment, especially when the upper-level power supply at the site needs to be repaired while the lower-level power supply needs to continue to supply power, the existing method is to first remove the sealing plate, then remove the primary connection bus, form a break between the transformer and the low voltage, and then connect an emergency power supply to the low-voltage bus to ensure the continuity of low-voltage power supply. The whole process is rather cumbersome, and when the operation is improper, it is extremely easy to cause equipment damage and personal injury to the operators. Summary of the Invention

[0003] To make up for the misoperations existing in the maintenance process of existing power distribution equipment, or equipment damage and personal injury to operators caused by improper operation, the present invention provides an operating mechanism based on a double-throw four-pole switch, including: a first fixing plate module, a second fixing plate module, a transmission mechanism module, a four-pole knife head module, and an operating mechanism module. The transmission mechanism module is rotatably arranged between the first fixing plate module and the second fixing plate module through a main shaft thereon; the four-pole knife head module is sleeved on the main shaft of the transmission mechanism module; the operating mechanism module is drivingly connected to the transmission mechanism module, and drives the transmission mechanism module to drive the four-pole knife head module thereon to rotate between the first fixing plate module and the second fixing plate module.

[0004] Further, the transmission mechanism module is composed of a driving mechanism module and a driven mechanism module. The driving mechanism module is sleeved on the driven mechanism module and is connected to the operating mechanism module, and can drive the driven mechanism module under the drive of the operating mechanism module.

[0005] Further, the driving mechanism module mainly consists of a main shaft sleeve, a hook plate, a first torsion spring, a baffle, a first connecting plate, and a first inferior arc plate. The hook plate is arranged on the main shaft sleeve; the first torsion spring is sleeved on the main shaft sleeve; the baffle and the first connecting plate are sleeved on the main shaft sleeve and are connected by a shaft pin; the first inferior arc plate is fixedly arranged on the baffle and is arranged in cooperation with one end of the first torsion spring; the first connecting plate is used to be connected to the operating mechanism module.

[0006] Further, the driven mechanism module mainly consists of a base assembly and a main shaft. The base assembly is composed of a base, a second inferior arc plate, a first pawl, a second pawl, a shaft pin, a second torsion spring, a shaft sleeve, and a stop block. The second inferior arc plate is fixedly arranged on the base for cooperating with the other end of the first torsion spring;

[0007] The first pawl and the second pawl are symmetrically arranged on the base through pivot pins respectively, and the stop blocks are arranged on the base and correspondingly distributed at the bottoms of the first pawl and the second pawl;

[0008] The second torsion spring is arranged on the base through a pivot pin, and its two ends are respectively matched with the first pawl and the second pawl to drive the first pawl and the second pawl to be perpendicular to the stop blocks at their bottoms respectively;

[0009] Bushing sleeves are further respectively arranged on the first pawl and the second pawl for matching with the hook plate in the active mechanism module.

[0010] Furthermore, the four-pole cutter head module is composed of four single-pole cutter head components sleeved on the main shaft, separated by bushing sleeves in the middle, and fixed at both ends by retaining rings and circlips respectively.

[0011] Furthermore, the operating mechanism module mainly consists of a trapezoidal lead screw, a threaded pin, a first bearing, a second bearing, and a second connecting plate. The threaded pin is screwed on the trapezoidal lead screw. One end of the trapezoidal lead screw is inserted into the first bearing, and the other end is inserted into the second bearing. One end of the second connecting plate is connected to the threaded pin, and the other end is connected to the transmission mechanism module.

[0012] The present invention provides an operating mechanism based on a double-throw four-pole switch, laying a technical foundation for realizing the maintenance of power distribution equipment, effectively guaranteeing the maintenance process of power distribution equipment, and ensuring the safety of the maintenance of power distribution equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0014] Figure 1 It is a schematic structural diagram of the double-throw four-pole knife switch operating mechanism in this embodiment;

[0015] Figure 2 It is a schematic structural diagram of the first fixing plate module in this embodiment;

[0016] Figure 3 It is a schematic structural diagram of the second fixing plate module in this embodiment;

[0017] Figure 4 It is a rear view schematic diagram of the structure of the transmission mechanism module in this embodiment;

[0018] Figure 5 It is a front view schematic diagram of the structure of the transmission mechanism module in this embodiment;

[0019] Figure 6a It is a front view schematic diagram of the active mechanism module in this embodiment;

[0020] Figure 6b It is a rear view schematic diagram of the active mechanism module in this embodiment;

[0021] Figure 7 It is a schematic structural diagram of the base assembly in the driven mechanism module of this example;

[0022] Figure 8a It is a schematic overall structural diagram of the driven mechanism module of this example;

[0023] Figure 8b It is a schematic partial structural diagram of the driven mechanism module of this example;

[0024] Figure 9a It is a schematic side view of the assembly of the single-pole cutter head component of this example;

[0025] Figure 9b It is a schematic rear view of the assembly of the single-pole cutter head component of this example;

[0026] Figure 10a It is a schematic front view of the operating mechanism module of this example;

[0027] Figure 10b It is a schematic rear view of the operating mechanism module of this example;

[0028] Figure 11 It is a schematic diagram of the operation of the operating mechanism of this example;

[0029] Figure 12 It is an example diagram of the transmission when performing the upper and lower combination operation of this example;

[0030] Figure 13 It is an example diagram of the transmission when performing the lower and upper combination operation of this example.

[0031] Meanings of the reference numerals in the figure: First fixed plate module 1, second fixed plate module 2, transmission mechanism module 3, four-pole cutter head module 4, operating mechanism module 5, operating handle 6, first fixed plate 1.1, needle roller bearing 1.2, second fixed plate 2.1, needle roller bearing 2.2, major arc plate 2.3, shaft pin 2.4, shaft pin 2.6, bush 2.5, nut 2.7, main shaft sleeve 3.1.1, hook plate 3.1.2, flat base screw 3.1.3, first torsion spring 3.1.4, baffle 3.1.5, minor arc plate 3.1.6, first connecting plate 3.1.7, shaft pin 3.1.8, snap ring 3.1.9, shaft pin 3.1.10, base 3.2.1, second minor arc plate 3.2.2, first pawl 3.2.3, second pawl 3.2.4, shaft pin 3.2.5, second torsion spring 3.2.6, bush 3.2.7, stop block 3.2.8, sector plate 3.2.9, flat base screw 3.2.10, bush 3.2.11, snap ring 3.2.12, main shaft 3.2.13, single-pole cutter head assembly 4.1, snap ring 4.2, retaining ring 4.3, intermediate bush 4.4, mechanism box 5.1, trapezoidal lead screw 5.2, threaded pin 5.3, first bearing 5.4, second bearing 5.5, support plate 5.6, screw assembly 5.7, second connecting plate 5.8, snap ring 5.9. Detailed implementation manners

[0032] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below with reference to specific drawings.

[0033] See Figure 1 , the operating mechanism of the double-throw four-pole switch includes: a first fixed plate module 1, a second fixed plate module 2, a transmission mechanism module 3, a four-pole cutter head module 4, and an operating mechanism module 5. Specifically, the transmission mechanism module 3 is fixed by the first fixed plate module 1 and the second fixed plate module 2; the four-pole cutter head module 4 is arranged on the transmission mechanism module 3; the operating mechanism module 5 is connected to the transmission mechanism module 3.

[0034] The operating mechanism of the double-throw four-pole switch thus constituted, by rotating and driving the operating mechanism module 5, the operating mechanism module 5 will rotate between the first fixed plate module 1 and the second fixed plate module 2 through the transmission mechanism module 3, and the transmission mechanism module 3 will drive the four-pole cutter head module 4 thereon to rotate between the first fixed plate module 1 and the second fixed plate module 2; at the same time, by switching the rotation driving direction of the operating mechanism module 5, the rotation direction of the four-pole cutter head module 4 can be controlled; the transmission mechanism module 3 can be limited at corresponding stations during the rotation process to control the rotation stroke of the four-pole cutter head module 4 to achieve corresponding switching operations.

[0035] Specifically, as Figure 2As shown, the first fixed plate module 1 is composed of a first fixed plate 1.1 and a needle roller bearing 1.2, and the needle roller bearing 1.2 is embedded in the first fixed plate module 1.

[0036] See Figure 3 , the second fixed plate module is composed of a second fixed plate 2.1, a needle roller bearing 2.2, a major arc plate 2.3, a shaft pin 2.4, a shaft pin 2.6, a bush 2.5, and a nut 2.7. Among them, the needle roller bearing 2.2 is embedded in the second fixed plate 2.1, the shaft pins 2.4 and 2.6 are fixedly arranged on the second fixed plate 2.1, the bush 2.5 is sleeved on the shaft pin 2.4, the major arc plate 2.3 passes through the shaft pins 2.4 and 2.6, and is fixed by the nut 2.7.

[0037] As Figure 4 , Figure 5 shown, the transmission mechanism module 3 is mainly composed of a driving mechanism module 3.1 and a driven mechanism module 3.2. Among them, the driving mechanism module 3.1 passes through the driven mechanism module 3.2, and can form a rotational limit for the driven mechanism module 3.2. At the same time, the driving mechanism module 3.1 is also connected to the operating mechanism module 5, and can form a drive for the driven mechanism module 3.2 under the drive of the operating mechanism module 5.

[0038] As Figure 6a , 6b shown, the driving mechanism module 3.1 is mainly composed of a main shaft sleeve 3.1.1, a hook plate 3.1.2, a first torsion spring 3.1.4, a baffle 3.1.5, a minor arc plate 3.1.6, and a first connecting plate 3.1.7.

[0039] Among them, the hook plate 3.1.2 is arranged on the main shaft sleeve 3.1.1 and fixed by a flat head machine screw 3.1.3; the first torsion spring 3.1.4 is sleeved on the main shaft sleeve 3.1.1; the baffle 3.1.5 and the first connecting plate 3.1.7 pass through the main shaft sleeve 3.1.1, and the two are connected by a shaft pin 3.1.8, and the two ends of the shaft pin 3.1.8 are fixed by a circlip 3.1.9 to prevent the shaft pin 3.1.8 from falling during movement; the minor arc plate 3.1.6 is welded to the baffle 3.1.5 and cooperates with one end of the first torsion spring 3.1.4; the shaft pin 3.1.10 passes through the first connecting plate 3.1.7 and is used to connect with the operating mechanism module 5.

[0040] See Figure 7 , 8a , 8b, it can be seen from the figure that the driven mechanism module 3.2 is mainly composed of a base assembly and a main shaft. Among them, the base assembly is mainly composed of a base 3.2.1, a minor arc plate 3.2.2, a first pawl 3.2.3, a second pawl 3.2.4, a shaft pin 3.2.5, a second torsion spring 3.2.6, a bush 3.2.7, a stop block 3.2.8, and a sector plate 3.2.9.

[0041] Specifically, the second minor arc plate 3.2.2 is fixedly arranged on the base 3.2.1 and is arranged in cooperation with the other end of the first torsion spring 3.1.4; the shaft pin 3.2.5 passes through the first pawl 3.2.3 and the second pawl 3.2.4 and is inserted into the corresponding hole arranged on the base 3.2.1; as Figure 7 shown, corresponding to the hole positions of the base 3.2.1, the second torsion spring 3.2.6, the shaft sleeve 3.2.7 and the stop block 3.2.8 are arranged, and both ends of the second torsion spring 3.2.6 fall into the card slots of the first pawl 3.2.3 and the second pawl 3.2.4, and then the flat base screw 3.2.10 passes through Figure 7 each component in, and the sector plate 3.2.9 is arranged on the base 3.2.1 to cover the first pawl 3.2.3, the second pawl 3.2.4 and the second torsion spring 3.2.6 arranged on the base 3.2.1, forming a limit for them to ensure the reliability of the cooperation structure between them. In addition, the sector plate 3.2.9 is provided with installation slot openings in the corresponding areas corresponding to the first pawl 3.2.3 and the second pawl 3.2.4 to cooperate with the shaft sleeve 3.2.11.

[0042] The shaft sleeve 3.2.11 is sleeved on the first pawl 3.2.3 and the second pawl 3.2.4, and the two are fixed by a snap ring 3.2.12.

[0043] The main shaft 3.2.13 is inserted into the central hole of the base 3.2.1 at a certain angle.

[0044] As Figure 9a 、 9b shown, the four-pole cutter head module 4 is mainly composed of four single-pole cutter head components 4.1.

[0045] The four single-pole cutter head components 4.1 are inserted on the main shaft 3.2.13 at a certain angle, separated by a shaft sleeve 4.4 in the middle, and fixed at both ends by a retaining ring 4.3 and a snap ring 4.2.

[0046] Among them, the specific structure of the single-pole cutter head component is well-known technology to those skilled in the art and will not be elaborated here.

[0047] As Figure 10a 、 10b shown, the operating mechanism module 5 is mainly composed of a trapezoidal lead screw 5.2, a threaded pin 5.3, a bearing 5.5, and a second connecting plate 5.8.

[0048] Among them, bearings 5.4 and 5.5 are respectively embedded in the corresponding holes of the mechanism box 5.1 and the support plate 5.6. The threaded pin 5.3 is screwed on the trapezoidal lead screw 5.2. One end of the trapezoidal lead screw 5.2 is inserted into the first bearing 5.4, and the other end is inserted into the second bearing 5.5. The support plate 5.6 is arranged on the mechanism box 5.1. The mechanism box 5.1 is fixed on the second fixing plate 2.1 through the screw assembly 5.7. One end hole of the second connecting plate 5.8 is passed through the threaded pin 5.3 and fixed by a circlip 5.9. The other end of the second connecting plate 5.8 is connected to the transmission mechanism module 3.

[0049] For the solution provided by the present invention, the application process is illustrated by the following examples.

[0050] I. Realize the operation of upper separation and lower combination

[0051] Refer to Figure 11 , when realizing the operation of upper separation and lower combination, first insert the end hexagonal head of the operating handle 6 into the hexagonal hole of the trapezoidal lead screw 5.2, and shake the operating handle 6 clockwise to drive the trapezoidal lead screw 5.2 to rotate clockwise. Through the threaded connection, the threaded pin 5.3 is driven to move forward along the mechanism box 5.1, thereby driving the second connecting plate 5.8 to drive the first connecting plate 3.1.7, realizing the force transmission from the operating mechanism module 5 to the driving mechanism module 3.1.

[0052] In the driving mechanism module 3.1, the force drives the first connecting plate 3.1.7 to rotate clockwise around the main shaft 3.2.13, driving the connected main shaft sleeve 3.1.1 and the baffle 3.1.5, and driving the hook plate 3.1.2 fixed on the main shaft sleeve 3.1.1 and the first inferior arc plate 3.1.6 welded on the baffle 3.1.5. At this time, one end of the first torsion spring 3.1.4 is compressed due to the driving force of the first inferior arc plate 3.1.6; in the driven mechanism module 3.2, due to the torsion of the second torsion spring 3.2.6, the first pawl 3.2.3 and the second pawl 3.2.4 are Figure 7 as shown, perpendicular to the left and right side blocks 3.2.8, so that the first pawl 3.2.3 and the second pawl 3.2.4 are Figure 12 as shown and collide with the upper and lower shaft sleeves 2.5, realizing the limit and retention of the driven mechanism module 3.2 and keeping the base 3.2.1 stationary. The second inferior arc plate 3.2.2 welded on the base 3.2.1 also remains stationary accordingly, so that the other end of the first torsion spring 3.1.4 also remains stationary; in the driving mechanism module 3.1, the hook plate 3.1.2 and the first inferior arc plate 3.1.6 rotate clockwise around the main shaft 3.2.13 due to the driving force. During the rotational movement, the first inferior arc plate 3.1.6 continuously does work on one end of the first torsion spring 3.1.4. Because the other end of the first torsion spring 3.1.4 is in a stationary state, the first torsion spring 3.1.4 is compressed, thereby realizing the motion energy storage of the transmission mechanism module 3, as Figure 12As shown, when the hook plate 3.1.2 in the driving mechanism module 3.1 hooks the bushing 3.2.11 in the driven mechanism module 3.2 due to rotation, the first pawl 3.2.3 is driven to rotate clockwise around the pivot pin 3.2.5, and the second torsion spring 3.2.6 is compressed. In the driven mechanism module 3.2, the first pawl 3.2.3 is disengaged from the lower bushing 2.5 due to rotation, realizing the release of the limiting state of the driven mechanism module 3.2. The static state of the other end of the first torsion spring 3.1.4 is broken, and the kinetic energy stored in the driven mechanism module 3.2 due to the torsion of the first torsion spring 3.1.4 is released. The driven mechanism module 3.2 rotates clockwise, realizing the upper opening and lower closing of the double-throw four-pole knife switch. After the first pawl 3.2.3 is disengaged from the lower bushing 2.5, the torsion of the second torsion spring 3.2.6 causes the first pawl 3.2.3 to reset immediately and collide with the right bushing 2.5, realizing the limiting and holding of the driven mechanism module 3.2 and maintaining the closing state of the double-throw four-pole knife switch.

[0053] II. Realize the lower opening and upper closing operation

[0054] See Figure 11 , when realizing the lower opening and upper closing operation, first shake the operating handle 6 counterclockwise. The operating handle 6 drives the shaft trapezoidal screw rod 5.2 to rotate counterclockwise, drives the threaded pin 5.3 to move backward through threaded connection, and then drives the second connecting plate 5.8 to drive the first connecting plate 3.1.7, realizing the transmission of force from the operating mechanism module 5 to the driving mechanism module 3.1.

[0055] In the driving mechanism module 3.1, the force drives the first connecting plate 3.1.7 to rotate counterclockwise around the main shaft 3.2.13, drives the connected main shaft sleeve 3.1.1 and the baffle 3.1.5, and drives the hook plate 3.1.2 fixed on the main shaft sleeve 3.1.1 and the first inferior arc plate 3.1.6 welded on the baffle 3.1.5. At this time, one end of the first torsion spring 3.1.4 is compressed by the driving force of the first inferior arc plate 3.1.6; while in the driven mechanism module 3.2, due to the torsion of the second torsion spring 3.2.6, the first pawl 3.2.3 and the second pawl 3.2.4 are Figure 7 As shown, perpendicular to the left and right stoppers 3.2.8, making the first pawl 3.2.3 and the second pawl 3.2.4 as Figure 13As shown in the figure, it collides with the left and right shaft sleeves 2.5 to realize the limit holding of the driven mechanism module 3.2 and keep the base 3.2.1 stationary. The second inferior arc plate 3.2.2 welded on the base 3.2.1 also remains stationary accordingly, so that the other end of the first torsion spring 3.1.4 also remains stationary. In the active mechanism module 3.1, the hook plate 3.1.2 and the first inferior arc plate 3.1.6 rotate counterclockwise around the main shaft 3.2.13 due to the driving force. During the rotational movement, the first inferior arc plate 3.1.6 continuously does work on one end of the first torsion spring 3.1.4. Since the other end of the first torsion spring 3.1.4 is in a stationary state, the first torsion spring 3.1.4 is compressed, thus realizing the motion energy storage of the transmission mechanism module 3, as Figure 13 shown in the figure. When the hook plate 3.1.2 in the active mechanism module 3.1 hooks the shaft sleeve 3.2.11 in the driven mechanism module 3.2 due to rotation, it drives the second pawl 3.2.4 shown to rotate counterclockwise around the pivot pin 3.2.5 and compresses the second torsion spring 3.2.6. In the driven mechanism module 3.2, the second pawl 3.2.4 is disengaged from the right shaft sleeve 2.5 due to rotation, realizing the release of the limit state of the driven mechanism module 3.2. The stationary state of the other end of the first torsion spring 3.1.4 is broken, and the motion energy storage generated by the torsion of the first torsion spring 3.1.4 in the driven mechanism module 3.2 is released. The driven mechanism module 3.2 rotates counterclockwise to realize the lower break and upper make of the double-throw four-pole knife switch. After the second pawl 3.2.4 is disengaged from the right shaft sleeve 2.5, the torsion of the second torsion spring 3.2.6 causes the second pawl 3.2.4 to reset immediately and collide with the left shaft sleeve 2.5, realizing the limit holding of the driven mechanism module 3.2 and maintaining the closing state of the double-throw four-pole knife switch.

[0056] From the above example, it can be seen that this solution uses a trapezoidal lead screw as the transmission component to convert the rotary motion into a linear motion. Moreover, due to its small frictional resistance, the overall mechanism has good transmission efficiency. At the same time, the trapezoidal lead screw also has a certain self-locking property, ensuring the safety and reliability of the operation, and the structure is relatively simple with good economy.

[0057] The operating mechanism based on the double-throw four-pole switch provided by the present invention lays a technical foundation for realizing the maintenance of power distribution equipment, effectively guarantees the maintenance process of power distribution equipment, and ensures the safety of the maintenance of power distribution equipment.

[0058] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An operating mechanism based on a double-throw four-pole switch, comprising: The first fixed plate module, the second fixed plate module, the transmission mechanism module, the four-pole cutter head module and the operating mechanism module. The transmission mechanism module is rotatably arranged between the first fixed plate module and the second fixed plate module through the main shaft thereon; the four-pole cutter head module is sleeved on the main shaft of the transmission mechanism module; the operating mechanism module is drivingly connected to the transmission mechanism module to drive the transmission mechanism module to drive the four-pole cutter head module thereon to rotate between the first fixed plate module and the second fixed plate module; the transmission mechanism module is composed of a driving mechanism module and a driven mechanism module. The driving mechanism module is sleeved on the driven mechanism module and is connected to the operating mechanism module, and can drive the driven mechanism module under the drive of the operating mechanism module; the driving mechanism module is composed of a main shaft sleeve, a hook plate, a first torsion spring, a baffle plate, a first connecting plate and a first inferior arc plate. The hook plate is arranged on the main shaft sleeve; the first torsion spring is sleeved on the main shaft sleeve; the baffle plate and the first connecting plate are sleeved on the main shaft sleeve and are connected by a shaft pin; the first inferior arc plate is fixedly arranged on the baffle plate and is arranged in cooperation with one end of the first torsion spring; the first connecting plate is used for connecting with the operating mechanism module; the four-pole cutter head module is composed of four single-pole cutter head assemblies sleeved on the main shaft, separated by a second shaft sleeve in the middle, and fixed at both ends by a retaining ring and a circlip respectively.

2. The operating mechanism based on a double-throw four-pole switch according to claim 1, characterized in that, The driven mechanism module is composed of a base assembly and a main shaft. The base assembly is composed of a base, a second inferior arc plate, a first pawl, a second pawl, a shaft pin, a second torsion spring, a first shaft sleeve and a stop block. The second inferior arc plate is fixedly arranged on the base for cooperating with the other end of the first torsion spring; The first pawl and the second pawl are symmetrically arranged on the base through the shaft pin respectively. The stop block is arranged on the base and is correspondingly distributed at the bottoms of the first pawl and the second pawl; The second torsion spring is arranged on the base through the shaft pin, and its two ends are respectively in cooperation with the first pawl and the second pawl to drive the first pawl and the second pawl to be perpendicular to the stop blocks at their bottoms respectively; The first pawl and the second pawl are also respectively provided with a first shaft sleeve for cooperating with the hook plate in the driving mechanism module.

3. The operating mechanism based on a double-throw four-pole switch according to claim 1, characterized in that The operating mechanism module is composed of a trapezoidal lead screw, a threaded pin, a first bearing, a second bearing and a second connecting plate. The threaded pin is screwed on the trapezoidal lead screw. One end of the trapezoidal lead screw is inserted into the first bearing, and the other end is inserted into the second bearing. One end of the second connecting plate is connected to the threaded pin, and the other end is connected to the transmission mechanism module.

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