A drive handle for a circuit breaker truck

Abstract

The application provides a drive handle of a circuit breaker trolley, and relates to the technical field of electrical equipment. The drive handle comprises a handle body and a driving mechanism. The handle body is in transmission connection with a switching piece to drive the circuit breaker trolley to move through the switching piece; the driving mechanism comprises a main driving unit and a displacement driving unit. The main driving unit is in transmission connection with the handle body to drive the switching piece to move through the handle body. The displacement driving unit is connected with the main driving unit to drive the main driving unit to move in at least one direction. The application provides a drive handle of a circuit breaker trolley. The driving mechanism is arranged on the drive handle to drive the handle body to move, the position of the circuit breaker trolley is changed, manual shaking of the handle is not needed, the labor intensity of the operator is reduced, the operation efficiency is improved, the risk of electric shock of the operator is reduced, and the operation safety is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical equipment, in particular to a drive crank of a circuit breaker trolley. BACKGROUND

[0002] Switch cabinets are used for power distribution, control and protection in power systems, mainly for high-voltage and low-voltage power systems, and are widely used in power plants, substations, industrial facilities, commercial buildings and residential areas.

[0003] Circuit breakers are components of switch cabinets, used to disconnect and connect circuits, and provide overcurrent and short-circuit protection. When the circuit breaker trolley is performing a switching operation, the operator needs to manually rotate the drive crank to drive the circuit breaker trolley to move and change the position of the circuit breaker trolley. However, manual rotation is laborious and there is a risk of electric shock. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the present application provides a drive crank of a circuit breaker trolley, which does not need manual rotation of the crank, reduces the labor intensity of the operator, improves the operation efficiency, reduces the risk of electric shock of the operator, and ensures the safety of the operation.

[0005] The present application provides a drive crank of a circuit breaker trolley, the circuit breaker trolley having a switching piece, the drive crank comprising:

[0006] a crank body, the crank body being in transmission connection with the switching piece to drive the circuit breaker trolley to move through the switching piece;

[0007] a drive mechanism, comprising: a main drive unit and a displacement drive unit, the main drive unit being in transmission connection with the crank body to drive the switching piece to move through the crank body, and the displacement drive unit being connected with the main drive unit to drive the main drive unit to move in at least one direction.

[0008] In a possible implementation, the main drive unit comprises a main motor, the main motor having an output shaft, the output shaft being in transmission connection with the crank body to drive the crank body to rotate.

[0009] In a possible implementation, the crank body is detachably connected with the output shaft.

[0010] In a possible implementation, the crank body is provided with a slot, and the drive crank further comprises a mounting mechanism, the mounting mechanism comprising:

[0011] a connecting piece, one end of the connecting piece being fixedly connected with the output shaft, and the other end being inserted into the slot;

[0012] A locking assembly is arranged on the connecting member and adapted to lock the connecting member and the handle body when the connecting member is inserted into the slot.

[0013] In a possible implementation, the locking assembly comprises a locking member and an elastic member arranged between the connecting member and the locking member, the connecting member defines a movable channel, the locking member moves along the movable channel between a first position and a second position,

[0014] wherein, in the first position, the locking member is locked with the handle body, and in the second position, the locking member is separated from the handle body, and the handle body is adapted to be detached from the connecting member.

[0015] In a possible implementation, the displacement driving unit comprises:

[0016] a first driving unit, the main driving unit is arranged on the first driving unit and is adapted to move in a first direction under the driving of the first driving unit;

[0017] a second driving unit, the first driving unit is arranged on the second driving unit and is adapted to move in a second direction under the driving of the second driving unit;

[0018] a third driving unit, the second driving unit is arranged on the third driving unit and is adapted to move in a third direction under the driving of the third driving unit;

[0019] The first direction, the second direction and the third direction are perpendicular to each other.

[0020] In a possible implementation, the first driving unit comprises:

[0021] a first support connected with the second driving unit;

[0022] a first motor arranged on the first support;

[0023] a first transmission assembly comprising a transmission rack and a transmission gear, the transmission gear is connected with a transmission shaft of the first motor, the transmission rack extends in the first direction, the transmission gear is engaged with the transmission rack, and the main driving unit is fixedly connected with the transmission rack.

[0024] In a possible implementation, the second driving unit comprises:

[0025] a second support connected with the third driving unit;

[0026] The telescopic cylinder comprises a cylinder body and a piston rod, the cylinder body is fixed to the second support, the piston rod is telescopic in the second direction, and a free end of the piston rod is connected with the first driving unit.

[0027] In a possible implementation, the third driving unit comprises:

[0028] A third support;

[0029] A third motor is arranged on the third support;

[0030] The second transmission assembly comprises a plurality of gear members, one of the plurality of gear members is connected with a transmission shaft of the third motor, the plurality of gear members form at least one gear pair, the gear member at the transmission end is connected with a screw rod, the screw rod is threadedly connected with a nut, and the nut is connected with the second driving unit.

[0031] In a possible implementation, the driving handle further comprises:

[0032] A control unit is electrically connected with the driving mechanism to control a motion state of the driving mechanism according to a control instruction, the motion state comprises at least one of a start-stop state, a motion direction and a motion speed.

[0033] A remote control handle is in communication connection with the control unit to send the control instruction to the control unit.

[0034] The application provides a driving handle of a circuit breaker trolley, by arranging a driving mechanism on the driving handle, that is, by arranging a main driving unit and a displacement driving unit, the change of the position of the circuit breaker trolley is realized by the movement of the driving handle body, manual shaking of the handle is not needed, the labor intensity of the operating personnel is reduced, and the operation efficiency is improved. In addition, the design reduces the opportunity of manual direct contact with the handle during the switching operation, reduces the risk of electric shock of the operating personnel, and ensures the operation safety. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0036] Figure 1 It is a structural schematic view of the driving handle of the circuit breaker trolley of the embodiment of the application.

[0037] Figure 2 It is a structural schematic view of the remote control handle of the driving handle of the circuit breaker trolley of the embodiment of the application.

[0038] Figure 3 For Figure 1 Structure diagram of the middle handle body installation position;

[0039] Figure 4 For Figure 3 Structure diagram of the middle A part.

[0040] Explanation of reference signs:

[0041] 100-handle body; 110-slot;

[0042] 200-driving mechanism; 210-main driving unit; 211-main motor; 2111-output shaft; 220-displacement driving unit; 221-first driving unit; 2211-first support; 2212-first motor; 2213-transmission rack; 2214-transmission gear; 222-second driving unit; 2221-second support; 2222-cylinder body; 2223-piston rod; 223-third driving unit; 2231-third support; 2232-third motor; 2233-gear piece; 2234-screw rod;

[0043] 300-mounting mechanism; 310-connection piece; 311-movable channel; 312-avoidance notch; 320-locking assembly; 321-locking piece; 322-elastic piece; 323-pushing button;

[0044] 400-control unit;

[0045] 500-remote control handle; 510-handle body; 520-start-stop module; 530-unit selection module; 540-motion direction module; 550-speed control module. DETAILED DESCRIPTION

[0046] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0047] Switch cabinets are used for power distribution, control and protection in power systems, mainly for high-voltage and low-voltage power systems, and are widely used in power plants, substations, industrial facilities, commercial buildings and residential areas.

[0048] The circuit breaker is a component of the switch cabinet, used to disconnect and connect the circuit, and provide overcurrent and short circuit protection. When the circuit breaker trolley is performing the switching operation, the operator needs to shake the drive handle to drive the circuit breaker trolley to move, and change the position of the circuit breaker trolley, for example, from the running position or the disconnected position to the test position or the working position. However, manual shaking is laborious and there is a risk of electric shock.

[0049] Therefore, the application provides a drive handle of a circuit breaker trolley. By providing a drive mechanism on the drive handle, i.e. by providing a main drive unit and a displacement drive unit, the change of the position of the circuit breaker trolley is realized by moving the drive handle body, without manual shaking of the handle, reducing the labor intensity of the operator and improving the operation efficiency. In addition, this design reduces the opportunity for manual direct contact with the handle during the switching operation, reduces the risk of electric shock of the operator, and ensures the safety of the operation.

[0050] The drive handle of the circuit breaker trolley according to the embodiments of the application will be described below. Figures 1 to 4 The drive handle of the circuit breaker trolley according to the embodiments of the application will be described below.

[0051] With reference to Figure 1 The drive handle of the circuit breaker trolley according to the embodiments of the application will be described below.

[0052] The handle body 100 is in transmission connection with the switch piece, so as to drive the circuit breaker trolley to move through the switch piece. Specifically, the handle body 100 transmits the rotary force to the switch piece through rotation, and then drives the circuit breaker trolley to change the position.

[0053] The drive mechanism 200 includes a main drive unit 210 and a displacement drive unit 220. The main drive unit 210 is in transmission connection with the handle body 100, so as to drive the switch piece to move through the handle body 100, i.e. by driving the switch piece to rotate to drive the circuit breaker trolley to move along a preset track. The displacement drive unit 220 is connected with the main drive unit 210, so as to drive the main drive unit 210 to move in at least one direction. Specifically, the direction can be horizontal, vertical or any other direction, which depends on the target position that the circuit breaker trolley needs to reach.

[0054] Thus, by providing the drive mechanism 200 on the drive handle, i.e. by providing the main drive unit 210 and the displacement drive unit 220, the change of the position of the circuit breaker trolley is realized by moving the handle body 100, without manual shaking of the handle, reducing the labor intensity of the operator and improving the operation efficiency. In addition, this design reduces the opportunity for manual direct contact with the handle during the switching operation, reduces the risk of electric shock of the operator, and ensures the safety of the operation.

[0055] In some embodiments, the drive handle of the circuit breaker trolley according to the embodiments of the application will be described below. Figure 1and Figure 2 The drive handle of the circuit breaker trolley further comprises a control unit 400 and a remote handle 500.

[0056] The control unit 400 is responsible for receiving control instructions from the remote handle 500 and controlling the motion state of the drive mechanism 200 according to the instructions. Specifically, the control unit 400 is electrically connected to the drive mechanism 200 to control the motion state of the drive mechanism 200 according to the control instructions, including at least one of the start-stop state, the motion direction, and the motion speed, to ensure that the circuit breaker trolley can move accurately according to the predetermined path and speed.

[0057] The remote handle 500 is in communication connection with the control unit 400 to send control instructions to the control unit 400. The remote handle 500 realizes remote operation of the operator, so that the operator can send control instructions to the control unit 400 within a safe distance. Exemplarily, the connection mode between the remote handle 500 and the control unit 400 can be wireless connection, such as Bluetooth connection, or wired connection, which can be selected according to actual needs.

[0058] By setting the integrated drive mechanism 200 and control unit 400, the automation of the circuit breaker trolley switching operation is realized, the opportunity of directly contacting the circuit breaker trolley by manual is reduced, the risk of electric shock and other safety risks is reduced, the labor intensity of the operator is also reduced, and the work efficiency is improved.

[0059] Optionally, in combination with Figure 1 and Figure 2 The remote handle 500 can comprise a handle body 510, and a start-stop module 520, a unit selection module 530, a motion direction module 540, and a speed control module 550 arranged on the handle body 510. The start-stop module 520 allows the user to control the start and stop of the drive handle. The unit selection module 530 is used to select each module in the main drive unit 210 and the displacement drive unit 220, such as the first drive unit 221, the second drive unit 222, and the third drive unit 223 in Figure 1 , to realize the separate operation and control of each unit. The motion direction module 540 is used to control the motion direction of the drive handle. The speed control module 550 allows the user to adjust the motion speed of the drive handle.

[0060] In some embodiments, in combination with Figure 1 , Figure 3 and Figure 4The main driving unit 210 comprises a main motor 211, and the main motor 211 has an output shaft 2111 which is in driving connection with the handle body 100 to drive the handle body 100 to rotate. Specifically, the main motor 211 receives the control signal of the control unit 400, so that the main motor 211 is turned on, and the main motor 211 drives the handle body 100 to rotate through the output shaft 2111, thereby realizing the adjustment of the position of the circuit breaker trolley, and reducing the complexity and risk of manual operation.

[0061] In some embodiments, in combination with Figure 1 , Figure 3 and Figure 4 , the handle body 100 and the output shaft 2111 are detachably connected; or, the main motor 211 and the displacement driving unit 220 are detachably connected. In this way, the handle body 100 or the handle body 100 and the main motor 211 as a whole can be replaced and maintained to adapt to different specifications or types of circuit breaker trolleys, and compatibility with the circuit breaker trolley can be realized by replacing different handle bodies 100.

[0062] For example, the connection between the handle body 100 and the output shaft 2111 or the connection between the main motor 211 and the displacement driving unit can be flange connection, bayonet connection, threaded connection, plug-in connection, modular interface, etc. The flexibility of the driving handle of the circuit breaker trolley is improved to adapt to different operation requirements.

[0063] For example, in combination with Figure 1 , Figure 3 and Figure 4 , taking the detachable connection between the handle body 100 and the output shaft 2111 as an example, the driving handle further comprises a mounting mechanism 300, and the mounting mechanism 300 comprises a connecting piece 310 and a locking assembly 320.

[0064] The one end of the connecting piece 310 is connected and fixed with the output shaft 2111, and the other end is inserted into the insertion slot 110; the locking assembly 320 is arranged on the connecting piece 310 and is adapted to be locked and matched with the handle body 100 when the connecting piece 310 is inserted into the insertion slot 110. For example, the locking assembly 320 is provided with a plurality of groups, and the plurality of groups of locking assemblies 320 are uniformly arranged on the peripheral wall of the connecting piece 310.

[0065] When it is necessary to fix the handle body 100 and the output shaft 2111, the other end of the connecting piece 310 is aligned with the insertion slot 110 on the handle body 100 and is pushed in, and when the connecting piece 310 is inserted into the insertion slot 110 and reaches a predetermined position, the locking assembly 320 is locked and matched with the handle body 100, realizing the detachable connection of the handle body 100 and the output shaft 2111; when it is necessary to disassemble the handle body 100 and the output shaft 2111, the locking state of the locking assembly 320 is cancelled to realize unlocking.

[0066] In some embodiments, in combination with Figure 3 The locking assembly 320 comprises a locking piece 321 and an elastic piece 322 arranged between the connecting piece 310 and the locking piece 321, the connecting piece 310 is defined with a movable channel 311, the locking piece 321 moves along the movable channel 311 between a first position and a second position, wherein, in the first position, the locking piece 321 is locked with the handle body 100, in the second position, the locking piece 321 is separated from the handle body 100, and the handle body 100 is adapted to be detached from the connecting piece 310.

[0067] The end of the connecting piece 310 is inserted into the slot 110 of the handle body 100, during the insertion process, the locking piece 321 is pressed by the edge of the slot 110 and moves to the second position, when the handle body 100 is inserted to the preset position, the elastic piece 322 releases energy and drives the locking piece 321 to return to the first position and lock with the handle body 100.

[0068] Optionally, the end of the locking piece 321 towards the handle body 100 is provided with a guide surface, during the insertion process, the locking piece 321 is driven to move to the second position by the guide surface.

[0069] In some embodiments, in combination with Figure 3 The locking assembly 320 further comprises a push button 323, the sidewall of the connecting piece 310 is further provided with an avoiding gap 312 which is communicated with the movable channel 311, the push button 323 is arranged in the avoiding gap 312 and is fixedly connected with the locking piece 321 to drive the locking piece 321 to move along the movable channel 311.

[0070] When it is needed to install the handle body 100 on the connecting piece 310, the operator can drive the locking piece 321 to the second position through the push button 323, when the handle body 100 is inserted to the preset position, the operator releases the push button 323, the elastic piece 322 drives the locking piece 321 to return to the first position and lock with the handle body 100; when it is needed to detach the handle body 100, the operator again drives the locking piece 321 to the second position through the push button 323, the locking piece 321 is separated from the handle body 100, and the quick detachment is realized.

[0071] Optionally, the mounting mechanism 300 can further comprise a locking nut, the locking nut is sleeved on any one of the connecting piece 310 and the handle body 100 and is respectively threadedly connected with the two. When the handle body 100 is installed on the connecting piece 310, the further fixation between the two can be realized through the locking nut, and the connection stability and reliability between the handle body 100 and the connecting piece 310 is improved.

[0072] In some embodiments, in combination with Figure 1The displacement driving unit 220 comprises a first driving unit 221, a second driving unit 222 and a third driving unit 223.

[0073] The main driving unit 210 is arranged on the first driving unit 221 to move in a first direction under the driving of the first driving unit 221; the first driving unit 221 is arranged on the second driving unit 222 to move in a second direction under the driving of the second driving unit 222; the second driving unit 222 is arranged on the third driving unit 223 to move in a third direction under the driving of the third driving unit 223; the first direction, the second direction and the third direction are perpendicular to each other.

[0074] When it is needed to connect the driving handle to the switch piece or to move the driving handle along with the movement of the circuit breaker trolley, the third driving unit 223 is moved to a preset position in the third direction, the second driving unit 222 is finely adjusted in the second direction on the basis of the first position, and the first driving unit 221 is positioned in the first direction on the basis of the second position. During the movement, the third driving unit 223, the second driving unit 222 and the first driving unit 221 can be adjusted according to the actual situation to ensure the positioning of the driving handle. By superimposing multiple driving units, each unit is responsible for moving the upper-level unit it carries in a specific direction, thereby realizing the movement and positioning of the driving handle in space.

[0075] In some embodiments, in combination with Figure 1 The first driving unit 221 comprises a first support 2211, a first motor 2212 and a first transmission assembly. The first support 2211 is connected with the second driving unit 222; the first motor 2212 is arranged on the first support 2211; the first transmission assembly comprises a transmission rack 2213 and a transmission gear 2214, the transmission gear 2214 is connected with the transmission shaft of the first motor 2212, the transmission rack 2213 extends in the first direction, the transmission gear 2214 is engaged with the transmission rack 2213, and the main driving unit 210 is fixedly connected with the transmission rack 2213.

[0076] Specifically, when the first motor 2212 rotates, the transmission shaft drives the transmission gear 2214 to rotate synchronously, the transmission gear 2214 is engaged with the transmission rack 2213, so that the transmission rack 2213 moves linearly in the first direction, thereby realizing the movement of the main driving unit 210 and the handle body 100 in the first direction.

[0077] In some embodiments, in combination with Figure 1The second driving unit 222 comprises a second support 2221 and a telescopic cylinder. The second support 2221 is connected with the third driving unit 223. The telescopic cylinder comprises a cylinder body 2222 and a piston rod 2223. The cylinder body 2222 is fixed to the second support 2221. The piston rod 2223 is telescopic in the second direction. The free end of the piston rod 2223 is connected with the first driving unit 221. For example, the telescopic cylinder can be a hydraulic cylinder, a pneumatic cylinder or an electric cylinder.

[0078] For example, when hydraulic oil is pumped into the cylinder body 2222, the piston is pushed to move forward, so that the piston rod 2223 is extended. Correspondingly, when the hydraulic oil is discharged from the cylinder body 2222, the piston is moved backward, and the piston rod 2223 is retracted. By controlling the inflow and outflow of the hydraulic oil, the telescopic amount of the piston rod 2223 is controlled, and the movement of the first driving unit 221 in the second direction is realized.

[0079] In some embodiments, the first driving unit 221, the second driving unit 222 and the third driving unit 223 are connected in series. Figure 1 The third driving unit 223 comprises a third support 2231, a third motor 2232 and a second transmission assembly. The third motor 2232 is arranged in the third support 2231. The second transmission assembly comprises a plurality of gear members 2233. One of the plurality of gear members 2233 is connected with the transmission shaft of the third motor 2232. The plurality of gear members 2233 form at least one gear member 2233 pair. The gear member 2233 at the transmission end is connected with a screw rod 2234. The screw rod 2234 is threadedly matched with a nut. The nut is connected with the second driving unit 222.

[0080] When the third motor 2232 rotates, the transmission shaft drives the gear member 2233 connected with the transmission shaft to rotate. The gear member 2233 drives the next gear member 2233 meshed with the gear member 2233 to rotate. In this way, the gear member 2233 at the transmission end rotates. The rotation of the gear member 2233 is transmitted to the screw rod 2234. When the screw rod 2234 rotates, the nut moves along the axial direction of the screw rod 2234 and drives the second driving unit 222 to move.

[0081] In this way, the third driving unit 223 realizes the conversion of rotary motion into linear motion by the driving of the third motor 2232, the transmission of the second transmission assembly and the thread matching between the screw rod 2234 and the nut, so as to realize the movement of the second driving unit 222 in the third direction.

[0082] It should be noted that the above embodiments of the first driving unit 221, the second driving unit 222 and the third driving unit 223 are only examples in one implementation. The specific structure can be selected according to actual needs, which is not limited herein.

[0083] The embodiments or examples in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between embodiments can be mutually referred to.

[0084] It should be noted that the embodiments referred to in the specification as "one embodiment", "an embodiment", "example embodiment", "some embodiments", etc. can include a specific feature, structure or characteristic, but not necessarily every embodiment. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when a specific feature, structure or characteristic is described in combination with an embodiment, it is within the knowledge of those skilled in the art to implement such a feature, structure or characteristic in combination with other embodiments that are explicitly or implicitly described.

[0085] Generally, the terms should be understood at least in part by the context of their use. For example, the term "one or more" as used herein, depending at least in part upon the context of their use, can be used to describe any feature, structure, or characteristic in a singular sense or can be used to describe combinations of features, structures or characteristics in a plural sense. Similarly, terms such as "a" and "the" can be understood to convey a singular usage or a plural usage, depending at least in part upon the context in which such terms are used.

[0086] It should be readily understood that "on", "above", and "over" in the present disclosure should be interpreted in the broadest context so that "on" not only means "directly on", but also includes the meaning of "on" with intermediate features or layers therebetween, and "above" or "over" not only includes the meaning of "above" or "over", but also can include the meaning of "above" or "over" without intermediate features or layers therebetween (i.e., directly on).

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A drive handle for a circuit breaker truck, comprising: The circuit breaker trolley has a switch piece, the drive handle includes: A handle body (100) in transmission connection with the switch piece to drive the circuit breaker trolley by the switch piece; A drive mechanism (200) including a main drive unit (210) in transmission connection with the handle body (100) to drive the switch piece by the handle body (100), and a displacement drive unit (220) connected with the main drive unit (210) to drive the main drive unit (210) to move in at least one direction.

2. The drive handle for a circuit breaker truck of claim 1 wherein, The main drive unit (210) includes a main motor (211) with an output shaft (2111) in transmission connection with the handle body (100) to drive the handle body (100) to rotate.

3. The drive handle of a circuit breaker truck according to claim 2, wherein, The handle body (100) is detachably connected with the output shaft (2111).

4. The drive handle of a circuit breaker truck according to claim 3, wherein, The handle body (100) is provided with a slot (110), and the drive handle further includes a mounting mechanism (300) including: A connecting piece (310) having one end fixedly connected with the output shaft (2111) and the other end inserted into the slot (110); A locking assembly (320) provided on the connecting piece (310) and adapted to be locked with the handle body (100) when the connecting piece (310) is inserted into the slot (110).

5. The drive handle of a circuit breaker truck according to claim 4, wherein, The locking assembly (320) includes a locking piece (321) and an elastic piece (322) provided between the connecting piece (310) and the locking piece (321), and the connecting piece (310) defines a movable channel (311), and the locking piece (321) moves along the movable channel (311) between a first position and a second position, Wherein, in the first position, the locking piece (321) is locked with the handle body (100), and in the second position, the locking piece (321) is separated from the handle body (100), and the handle body (100) is adapted to be detached from the connecting piece (310).

6. The drive handle of a circuit breaker truck according to any of claims 1-5, characterized in that, The displacement drive unit (220) includes: A first drive unit (221) in which the main drive unit (210) is arranged to move in a first direction under the drive of the first drive unit (221); A second drive unit (222) in which the first drive unit (221) is arranged to move in a second direction under the drive of the second drive unit (222); A third drive unit (223) in which the second drive unit (222) is arranged to move in a third direction under the drive of the third drive unit (223); The first direction, the second direction and the third direction are perpendicular to each other.

7. The drive handle of a circuit breaker truck according to claim 6, wherein, The first drive unit (221) includes: A first support (2211) is connected with the second driving unit (222); A first motor (2212) is arranged on the first support (2211); A first transmission assembly includes a transmission rack (2213) and a transmission gear (2214), the transmission gear (2214) is connected with a transmission shaft of the first motor (2212), the transmission rack (2213) extends along the first direction, the transmission gear (2214) is engaged with the transmission rack (2213), and the main driving unit (210) is fixedly connected with the transmission rack (2213).

8. The drive handle of a circuit breaker truck according to claim 6, wherein, The second driving unit (222) includes: A second support (2221) is connected with the third driving unit (223); A telescopic cylinder includes a cylinder body (2222) and a piston rod (2223), the cylinder body (2222) is fixed on the second support (2221), the piston rod (2223) is telescopic along the second direction, and a free end of the piston rod (2223) is connected with the first driving unit (221).

9. The drive handle of a circuit breaker truck according to claim 6, wherein, The third driving unit (223) includes: A third support (2231); A third motor (2232) is arranged on the third support (2231); A second transmission assembly includes a plurality of gear members (2233), one of the plurality of gear members (2233) is connected with a transmission shaft of the third motor (2232), the plurality of gear members (2233) form at least one gear member (2233) pair, the gear member (2233) located at a transmission end is connected with a screw rod (2234), the screw rod (2234) is threadedly connected with a nut, and the nut is connected with the second driving unit (222).

10. The drive handle of a circuit breaker truck according to any one of claims 1-5, characterized in that, Further comprising: A control unit (400) is electrically connected with the driving mechanism (200) to control a motion state of the driving mechanism (200) according to a control instruction, the motion state includes at least one of a start-stop state, a motion direction and a motion speed; A remote control handle (500) is in communication connection with the control unit (400) to send the control instruction to the control unit (400).

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