High-voltage handcart type switch cabinet and breaking method thereof

Abstract

The invention relates to the technical field of switch cabinets, in particular to a high-voltage handcart type switch cabinet and a breaking method thereof.The high-voltage handcart type switch cabinet comprises a cabinet body and a sliding groove formed in the cabinet body, a handcart is installed in the sliding groove in a sliding mode, and a fixing plate is arranged in the cabinet body; the displacement locking mechanism is arranged on the fixing plate, is connected with the handcart and is used for adjusting the locking state of the handcart; the controller is installed in the cabinet body, a connection and disconnection regulation and control mechanism connected with the controller is arranged on the fixing plate, a follow-up rotating mechanism is arranged on the displacement locking mechanism, and the follow-up rotating mechanism can adjust the on-off state of the controller through the connection and disconnection regulation and control mechanism when the displacement locking mechanism moves; and the trigger reset mechanism is arranged on the displacement locking mechanism and is connected with the follow-up rotating mechanism, and according to the position of the handcart, on-off of the circuit breaker can be automatically controlled so as to ensure that the switch cabinet is always kept in a safe state when being used.

Description

Technical Field

[0001] The invention relates to the technical field of switch cabinets, in particular to a high-voltage trolley-type switch cabinet and a disconnecting method thereof. Background Art

[0002] The trolley switch cabinet consists of a fixed cabinet and a removable trolley. This design makes the trolley part have good interchangeability. The trolley track can be located on the ground or in the middle of the switch cabinet, depending on the design.

[0003] The trolley-type switchgear relies on the trolley to dial in and out the electrical components such as disconnectors and circuit breakers to achieve the switching, distribution, protection and control of the circuit in different states. When the trolley is dialed into the corresponding position, the transmission mechanism of the mechanical part will automatically start to easily dial in or out the electrical components. When the trolley is in motion, the transmission mechanism of the mechanical part will automatically disconnect the power system to achieve the separation and isolation of the electrical components.

[0004] The use of the trolley is to control the locking of the trolley and the opening and closing of the circuit breaker by interlocking. However, when the existing trolley is being repaired, the circuit breaker needs to be disconnected first, and then the trolley is unlocked by other tools. The opening and closing of the circuit breaker is basically unrelated to the locking of the trolley, which may cause the circuit breaker to be closed when the trolley is not in the test position or the working position. Summary of the invention

[0005] The object of the present invention is to provide a high-voltage trolley-type switch cabinet and a disconnecting method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A high-voltage trolley-type switch cabinet, comprising: A cabinet body, and a slide groove provided in the cabinet body, a trolley is slidably installed in the slide groove, and a fixing plate is provided in the cabinet body; Also includes: A displacement locking mechanism, disposed on the fixed plate and connected to the trolley, for adjusting a locking state of the trolley; A controller is installed in the cabinet, a connection and disconnection regulating mechanism connected to the controller is provided on the fixing plate, a follow-up rotating mechanism is provided on the displacement locking mechanism, and the follow-up rotating mechanism can adjust the switch state of the controller through the connection and disconnection regulating mechanism when the displacement locking mechanism moves; A trigger reset mechanism is arranged on the displacement locking mechanism and connected to the follow-up rotating mechanism. The trigger reset mechanism can be activated when the displacement locking mechanism locks the trolley to control the reset of the connection and disconnection regulating mechanism through the follow-up rotating mechanism.

[0007] As a further solution of the present invention: the displacement locking mechanism comprises a screw rod rotatably mounted on the fixed plate, a hand wheel is arranged at the end of the screw rod, and a first threaded sleeve matched with the screw rod thread is movably mounted on the screw rod; It also includes a rotating rod rotatably mounted on the fixed plate, a first guide sleeve slidably mounted on the rotating rod, the first guide sleeve is connected to the first threaded sleeve, and the first threaded sleeve is provided with a guide assembly connected to the trolley.

[0008] As a further solution of the present invention: the guide assembly includes a support plate installed on the side wall of the first threaded sleeve, the support plate is provided with a guide groove, a limiting column is slidably installed in the guide groove, and a guide groove slidably connected to the limiting column is provided at the bottom of the trolley.

[0009] As a further solution of the present invention: the connection and disconnection control mechanism includes a support rod installed on the fixed plate, a sliding sleeve is slidably installed on the support rod, a moving contact is arranged on the side wall of the sliding sleeve, a static contact cooperating with the moving contact is arranged at the end of the support rod, and a driven component connected with the sliding sleeve is arranged on the rotating rod.

[0010] As a further solution of the present invention: the driven assembly includes a rotating ring installed at the end of the rotating rod, a third spiral groove is provided on the outer wall of the rotating ring, and a protruding column slidably connected to the third spiral groove is provided on the side wall of the sliding sleeve.

[0011] As a further solution of the present invention: the follow-up rotating mechanism includes a second threaded sleeve movably mounted on the screw and threadably matched with the screw, and a second guide sleeve connected to the second threaded sleeve is slidably mounted on the rotating rod; It also includes a second vertical groove and an annular groove opened on the rotating rod, a push ring which is slidably installed on the rotating rod and cooperates with the second guide sleeve, a second limit block which is slidably connected to the second vertical groove and the annular groove is arranged on the inner wall of the push ring, and an elastic component connected to the push ring is arranged on the rotating rod.

[0012] As a further solution of the present invention: the elastic component includes a second spiral groove provided on the rotating rod, a movable plate slidably connected to the screw rod is slidably mounted on the rotating rod, and a third limit block slidably connected to the second spiral groove is provided on the inner wall of the movable plate; It also includes a second spring and a third spring sleeved on the rotating rod, two ends of the second spring are respectively in contact with the movable plate and the pushing ring, and the third spring is in contact with the movable plate.

[0013] As a further solution of the present invention: the trigger reset mechanism includes a guide column slidably mounted on the first guide sleeve, the guide column is slidably connected to the push ring, the guide column is equipped with a first movable ring sleeved on the rotating rod, and the rotating rod is provided with a limit assembly connected to the guide column.

[0014] As a further solution of the present invention: the limiting assembly includes a first vertical groove and a first spiral groove provided on the rotating rod, the guide column is provided with a second movable ring sleeved on the rotating rod, and the inner wall of the second movable ring is provided with a first limiting block slidably connected with the first vertical groove and the first spiral groove; It also includes a first spring sleeved on the rotating rod, and two ends of the first spring are respectively in contact with the first guide sleeve and the second movable ring.

[0015] A method for disconnecting a high-voltage trolley-type switch cabinet comprises the following steps: Step 1: In the initial state, the position of the opponent car is locked under the action of the displacement locking mechanism; Step 2: When the trolley position needs to be adjusted, the follow-up rotating mechanism and the trigger reset mechanism are controlled to move under the action of the displacement locking mechanism, and the controller is controlled to disconnect through the disconnection regulating mechanism to put the circuit breaker in the disconnected state; Step 3: At this time, the position of the trolley can be adjusted. When the trolley moves to the test position, under the action of the displacement locking mechanism, the follow-up rotating mechanism is reset by triggering the reset mechanism, so as to drive the controller to be connected again through the disconnection regulating mechanism; Step 4: The displacement locking mechanism can also lock the position of the trolley again to ensure that the position of the trolley will not change when the circuit breaker is turned on.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the present application can control the circuit breaker on the trolley in a closed state by an interlocking manner, so that the trolley cannot move; when the circuit breaker is in an open state, the trolley can move and the circuit breaker cannot be closed, so as to ensure the normal use of the switch cabinet; when the circuit breaker is in a closed state, under the action of the displacement locking mechanism, the trolley is ensured not to move; when the trolley needs to be repaired or tested, the displacement locking mechanism is controlled to move, and under the action of the follow-up rotating mechanism and the disconnection regulating mechanism, the controller is in an disconnected state to open the circuit breaker; at this time, the displacement locking mechanism no longer locks the trolley, and the trolley can move freely; during the movement of the trolley, the disconnection regulating mechanism is reversely locked by the displacement locking mechanism to ensure that the circuit breaker will not be closed when the trolley moves, thereby ensuring the correct operation of the switch cabinet and the personal safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a structural schematic diagram of an embodiment of a high-voltage trolley-type switch cabinet.

[0018] Figure 2 The figure is a schematic diagram of the structure inside the cabinet in one embodiment of a high-voltage trolley-type switch cabinet.

[0019] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at point A in the middle.

[0020] Figure 4 The present invention is a schematic diagram of the connection relationship among a trolley, part of the connection and disconnection control mechanism, and part of the follow-up rotating structure in one embodiment of a high-voltage trolley-type switch cabinet.

[0021] Figure 5 for Figure 4 Schematic diagram of the structure from another angle.

[0022] Figure 6 The present invention is a schematic structural diagram of a trolley and a guide groove in an embodiment of a high-voltage trolley-type switch cabinet.

[0023] Figure 7 The present invention is a schematic diagram of the connection relationship among a partial displacement locking mechanism, a partial disconnection regulating mechanism, a partial trigger reset mechanism, a partial follow-up rotation mechanism, and a controller in an embodiment of a high-voltage trolley-type switch cabinet.

[0024] Figure 8 The present invention is a schematic diagram of the connection relationship among a partial displacement locking mechanism, a partial disconnection regulating mechanism, a partial trigger reset mechanism, and a partial follow-up rotation mechanism in an embodiment of a high-voltage trolley-type switch cabinet.

[0025] Fig. 9 It is a structural schematic diagram of a part of the disconnection and regulation mechanism, a part of the trigger reset mechanism, and a part of the follow-up rotation mechanism in an embodiment of a high-voltage trolley-type switch cabinet.

[0026] Fig.10 The diagram is a schematic diagram of the exploded structure of a rotating rod and a trigger reset mechanism in an embodiment of a high-voltage trolley-type switch cabinet.

[0027] Fig.11 This is a schematic diagram of a partially half-section structure of a high-voltage trolley-type switch cabinet in an embodiment.

[0028] Fig.12 The exploded structural diagram of a rotating rod and a follow-up rotating mechanism in an embodiment of a high-voltage trolley-type switch cabinet is shown.

[0029] Fig.13 The present invention is a structural schematic diagram of a partial disconnection and regulation mechanism in an embodiment of a high-voltage trolley-type switch cabinet.

[0030] In the figure: 1, cabinet; 101, slide; 2, handcart; 201, first straight groove; 202, first transverse groove; 203, second transverse groove; 204, second straight groove; 205, third transverse groove; 3, fixed plate; 4, handwheel; 5, screw rod; 6, first threaded sleeve; 7, support plate; 8, guide groove; 9, limit column; 10, rotating rod; 1001, first vertical groove; 1002, first spiral groove; 1003, second vertical groove; 1004, annular groove; 1005, second spiral groove; 11, first guide Sleeve; 12. first movable ring; 13. guide column; 14. second movable ring; 15. first limit block; 16. first spring; 17. second threaded sleeve; 18. second guide sleeve; 19. push ring; 20. second limit block; 21. second spring; 22. movable plate; 23. third limit block; 24. third spring; 25. rotating ring; 2501. third spiral groove; 26. support rod; 27. sliding sleeve; 28. protruding column; 29. ​​moving contact; 30. static contact; 31. controller. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0033] See also Figure 1 to Figure 13In the embodiment of the present invention, a high-voltage trolley-type switch cabinet includes: a cabinet body 1, a slide 101, a trolley 2, a fixing plate 3, a displacement locking mechanism, a controller 31, a connection and disconnection regulating mechanism, a follow-up rotating mechanism, and a trigger reset mechanism. In order to ensure the normal use of the switch cabinet, it is necessary to control the trolley 2 by interlocking. When the circuit breaker on the trolley is in the closed state, the trolley 2 cannot move. When the circuit breaker is in the open state, the trolley 2 can move, and the circuit breaker cannot be closed. When the circuit breaker is in the closed state, under the action of the displacement locking mechanism, the trolley 2 can be ensured to be in the closed state. The trolley will not move. When the trolley needs to be repaired or tested, the displacement locking mechanism is controlled to move, and under the action of the follow-up rotating mechanism and the disconnection regulating mechanism, the controller 31 is in the disconnected state to open the circuit breaker. At this time, the displacement locking mechanism no longer locks the trolley 2, and the trolley can move freely. During the movement of the trolley, the disconnection regulating mechanism is reversely locked by the displacement locking mechanism to ensure that the circuit breaker will not be closed when the trolley moves, thereby ensuring the correct operation of the switch cabinet and the personal safety of the operator.

[0034] The details are as follows, including: A cabinet body 1, and a slide groove 101 provided in the cabinet body 1, a trolley 2 is slidably installed in the slide groove 101, and a fixing plate 3 is provided in the cabinet body 1; Also includes: See also Figure 1 , Figure 2 , Figure 4-Figure 8 , a displacement locking mechanism is arranged on the fixed plate 3 and connected to the trolley 2, and is used to adjust the locking state of the trolley 2. The displacement locking mechanism includes a screw rod 5 rotatably mounted on the fixed plate 3, a handwheel 4 is arranged at the end of the screw rod 5, and a first threaded sleeve 6 which is threadedly matched with the screw rod 5 is movably mounted on the screw rod 5; it also includes a rotating rod 10 rotatably mounted on the fixed plate 3, a first guide sleeve 11 is slidably mounted on the rotating rod 10, and the first guide sleeve 11 is connected to the first threaded sleeve 6, and a guide assembly connected to the trolley 2 is arranged on the first threaded sleeve 6, wherein the guide assembly includes a support plate 7 mounted on the side wall of the first threaded sleeve 6, a guide groove 8 is opened on the support plate 7, a limiting column 9 is slidably installed in the guide groove 8, and a guide groove slidably connected to the limiting column 9 is opened at the bottom of the trolley 2.

[0035] In detail, the structures at the bottom of the trolley 2 are symmetrically arranged, so there are two handwheels 4, one of which is used to control the opening and closing of the circuit breaker, and the other handwheel 4 is used to control the opening and closing of the grounding switch. The guide groove is also divided into two parts. The first part includes a first straight groove 201, a first transverse groove 202, and a second transverse groove 203. This part is located at the position of the handwheel 4 for controlling the circuit breaker switch, and the other part includes a second straight groove 204 and a third transverse groove 205. This part is located at the position of the handwheel 4 for controlling the grounding switch. When the trolley 2 is in use, it is divided into a working position, a test position, and an inspection position. In the initial state, the trolley 2 is located at the working position. At this time, the circuit breaker is in the on state and the grounding switch is in the open state. In order to ensure the correct operation of the switch cabinet In common use, it is necessary to lock the position of the handcart 2. At this time, one of the limit posts 9 in the same group as the handwheel 4 for controlling the circuit breaker is located at a position where the first transverse groove 202 is away from the first straight groove 201, so that the support plate 7 and the guide groove 8 are located at the end of the stroke in the direction of the handwheel 4. Under the action of the limit post 9 and the first transverse groove 202, the handcart 2 is locked to ensure that the handcart 2 does not slide along the slide groove 101. The other limit post 9 in the same group as the handwheel 4 for controlling the grounding switch is located at an end of the second straight groove 204 away from the third transverse groove 205. Under the action of the limit post 9 and the second straight groove 204, the movement of the support plate 7 and the guide groove 8 is restricted to ensure that the handwheel 4 cannot rotate, thereby ensuring that the grounding switch is always in the disconnected state.

[0036] Preferably, when the trolley 2 needs to be controlled to move to the test position, the circuit breaker needs to be disconnected, so the hand wheel 4 that controls the opening and closing of the circuit breaker can be driven to rotate, and the screw rod 5 can be driven to rotate, thereby driving the first threaded sleeve 6 to move, and the first threaded sleeve 6 can also drive the first guide sleeve 11 to move along the length direction of the rotating rod 10. The rotating rod 10 and the first guide sleeve 11 have a guiding function to ensure that the first threaded sleeve 6 does not rotate with the screw rod 5 during movement. The first threaded sleeve 6 can also drive the support plate 7 to move, and under the action of the guide groove 8, the control The limiting column 9 is controlled to move along the length direction of the guide groove 8 and along the length direction of the first transverse groove 202 until the limiting column 9 moves to the connection position between the first transverse groove 202 and the first straight groove 201. The trolley 2 can slide along the slide groove 101. At this time, the trolley 2 can be moved to the test position. When the trolley 2 moves to the test position, the circuit breaker or the earthing switch can be turned on again. At this time, the handwheel 4 can be controlled to rotate, and the two limiting columns 9 can be controlled to enter the second transverse groove 203 and the third transverse groove 205 respectively, so as to achieve the purpose of turning on the circuit breaker or the earthing switch.

[0037] Among them, the first transverse groove 202 and the second transverse groove 203 are respectively adapted to the working position and the test position of the trolley 2. By simply adjusting the position of the limit column 9 in the guide groove, the position of the trolley 2 or the handwheel 4 can be automatically locked according to the state of the trolley 2, so as to achieve the effect of quickly switching the locking state of the trolley 2 and the handwheel 4 according to the operator's needs. At the same time, in the process of adjusting the position of the limit column 9, if the trolley 2 is in the working position, the limit column 9 is located at the end of the first transverse groove 202 and can only move toward the first straight groove 201. If the trolley 2 moves from the working position to the implementation position, the limit column 9 is located in the first straight groove 201 and can only move toward the second transverse groove 203. Therefore, when the operator adjusts the circuit breaker switch, he only needs to turn it in the direction in which the handwheel 4 can turn, so as to achieve the effect of facilitating the operator's use.

[0038] See also Figure 2 , Figure 4 , Figure 5 , Figure 7-Figure 9 , Figure 11-13 , a controller 31 is installed in the cabinet 1, and a connection and disconnection regulating mechanism connected to the controller 31 is provided on the fixed plate 3, and the connection and disconnection regulating mechanism includes a support rod 26 installed on the fixed plate 3, and a sliding sleeve 27 is slidably installed on the support rod 26, and a moving contact 29 is provided on the side wall of the sliding sleeve 27, and a static contact 30 cooperating with the moving contact 29 is provided at the end of the support rod 26, and a driven component connected to the sliding sleeve 27 is provided on the rotating rod 10, wherein the driven component includes a rotating ring 25 installed at the end of the rotating rod 10, and a third spiral groove 2501 is opened on the outer wall of the rotating ring 25, and a protruding column 28 slidably connected to the third spiral groove 2501 is provided on the side wall of the sliding sleeve 27.

[0039] It should be noted that the controller 31 is used to control the opening and closing of the circuit breaker and the earthing switch, and the contact state of the two sets of moving contacts 29 and the two sets of static contacts 30 controls the switch corresponding to the controller 31. In the initial state, the trolley 2 is in a working state. Since one of the limit columns 9 that cooperate with the earthing switch is located in the second straight groove 204, the earthing switch is in a disconnected state. When the position of the trolley 2 is adjusted, this part always maintains the original state. Therefore, it is described in terms of the structure of the control circuit breaker. Under the action of the third spiral groove 2501 and the protruding column 28, the sliding sleeve 27 is located at the end of the stroke in the direction away from the fixed plate 3, so that the moving contact 29 and the earthing switch are in contact with each other. The static contact 30 is in the on state, so the circuit breaker is controlled to be in the on state through the controller 31. When it is necessary to adjust the position of the trolley 2 to the test position, the hand wheel 4 can be driven to rotate and drive the screw rod 5 to rotate. The screw rod 5 will control the rotation of the rotating rod 10 through the follow-up rotation mechanism, thereby driving the rotating ring 25 to rotate, so that the third spiral groove 2501 moves. At this time, the protruding column 28 will slide along the trajectory of the third spiral groove 2501, so that the sliding sleeve 27 moves along the length direction of the support rod 26 and moves in the direction away from the static contact 30, so as to control the separation of the moving contact 29 and the static contact 30. At this time, the circuit breaker is disconnected.

[0040] Preferably, by cooperating with the movement of the limit column 9 and the rotation of the rotating rod 10, it is achieved that when the circuit breaker is turned on, the trolley 2 is in a locked state and cannot move, and when the circuit breaker is turned off, the trolley 2 can move freely along the slide groove 101, and during the movement of the trolley 2, the rotation of the rotating rod 10 is restricted to ensure that the circuit breaker will not be turned on.

[0041] See also Figure 2-Figure 5 , Figure 7-Figure 9 , Fig.11 , Fig.12The displacement locking mechanism is provided with a follow-up rotating mechanism, and the follow-up rotating mechanism can adjust the switch state of the controller 31 through the disconnection regulating mechanism when the displacement locking mechanism moves. The follow-up rotating mechanism includes a second threaded sleeve 17 movably mounted on the screw rod 5 and threadedly matched with the screw rod 5, and a second guide sleeve 18 connected to the second threaded sleeve 17 is slidably mounted on the rotating rod 10; it also includes a second vertical groove 1003 and an annular groove 1004 provided on the rotating rod 10, and a push ring 19 is slidably mounted on the rotating rod 10 to abut against the second guide sleeve 18, and the inner wall of the push ring 19 is provided with a second vertical groove 1003 and an annular groove 1004. 003 and the second limit block 20 slidably connected to the annular groove 1004, the rotating rod 10 is provided with an elastic component connected to the pushing ring 19, wherein the elastic component includes a second spiral groove 1005 opened on the rotating rod 10, and a movable plate 22 slidably connected to the screw rod 5 is slidably installed on the rotating rod 10, and the inner wall of the movable plate 22 is provided with a third limit block 23 slidably connected to the second spiral groove 1005; it also includes a second spring 21 and a third spring 24 mounted on the rotating rod 10, the two ends of the second spring 21 are respectively abutted against the movable plate 22 and the pushing ring 19, and the third spring 24 is abutted against the movable plate 22.

[0042] Furthermore, in order to reduce the arc generated when the circuit breaker is disconnected, it is necessary to control the moving contact 29 to quickly separate from the static contact 30. In the initial state, the trolley 2 is in the working position, the second threaded sleeve 17 is at the end of the stroke toward the handwheel 4, the second spring 21 and the third spring 24 are both in a pre-compression state, and the elastic potential energy of the second spring 21 is less than the elastic potential energy of the third spring 24. Therefore, the thrust of the second spring 21 on the movable plate 22 is less than the thrust of the third spring 24 on the movable plate 22, so that the third limit block 23 is located at the end of the stroke of the second spiral groove 1005 toward the handwheel 4 side, the second spring 21 and the third spring 24 will also control the push ring 19 to be in a position in contact with the second guide sleeve 18, so that the second limit block 20 is located at the end of the stroke of the second vertical groove 1003 away from the annular groove 1004 side.

[0043] When the position of the trolley 2 needs to be adjusted, the circuit breaker needs to be disconnected. At this time, the handwheel 4 rotates and drives the screw rod 5 to rotate, thereby driving the second threaded sleeve 17 to move. The second threaded sleeve 17 will also drive the second guide sleeve 18 to move along the length direction of the rotating rod 10, thereby driving the pushing ring 19 to move synchronously. The pushing ring 19 will drive the second limit block 20 to move along the length direction of the second vertical groove 1003 and compress the second spring 21. When the pushing ring 19 moves, under the action of the triggering reset mechanism, it is ensured that the pushing ring 19 will not rotate. Therefore, the second limit block 20 and the second vertical groove 1003 will limit the rotation of the rotating rod 10, and under the action of the second spiral groove 1005 and the third limit block 23, it is ensured that the position of the movable plate 22 will not change.

[0044] As the push ring 19 moves, the elastic potential energy of the second spring 21 will gradually exceed the elastic potential energy of the third spring 24. When the second limit block 20 moves to the connection position between the second vertical groove 1003 and the annular groove 1004, the second limit block 20 can slide along the track of the annular groove 1004. Therefore, the rotating rod 10 can rotate in one direction. Since the elastic potential energy of the second spring 21 is greater than the elastic potential energy of the third spring 24, the movable plate 22 will move in the direction away from the push ring 19 to drive the third limit block 23 to slide along the track of the second spiral groove 1005, so that The rotating rod 10 rotates, and at this time, the second limit block 20 will enter the annular groove 1004. When the third limit block 23 moves to the end of the stroke on the other side of the second spiral groove 1005, the second limit block 20 also moves to the end of the annular groove 1004, and the limit column 9 just disengages from the first transverse groove 202 and enters the first straight groove 201. At this time, the trolley 2 can move freely along the slide groove 101. When the rotating rod 10 rotates, it will also drive the rotating ring 25 to move, and under the action of the third spiral groove 2501 and the protruding column 28, the moving contact 29 is separated from the static contact 30, thereby controlling the circuit breaker to disconnect.

[0045] Preferably, in the process of disconnecting the circuit breaker, by limiting the rotation of the rotating rod 10 and gradually increasing the elastic potential energy of the second spring 21, it can be achieved that when the rotating rod 10 is able to rotate, the second spring 21 is elastically released quickly, so that the rotating rod 10 rotates quickly, thereby accelerating the separation speed of the moving contact 29 and the static contact 30 to reduce the generation of arcs. At the same time, the rotating rod 10 can only rotate when the second limit block 20 moves to the connection position between the annular groove 1004 and the second vertical groove 1003, and at this time the limit column 9 just breaks away from the first transverse groove 202 and enters the first straight groove 201, so that the trolley 2 is no longer locked. In this process, the handwheel 4 needs to be rotated several times to achieve the above operation. Therefore, the problem of circuit breaker disconnection and trolley 2 movement caused by slight rotation of the handwheel 4 due to operator misoperation is avoided, which has a fool-proof effect.

[0046] See also Figure 2 , Figure 4 , Figure 5 , Figure 7-Figure 11 , a trigger reset mechanism is arranged on the displacement locking mechanism and connected to the follow-up rotating mechanism. The trigger reset mechanism can be actuated when the displacement locking mechanism locks the trolley 2, so as to control the reset of the disconnection regulating mechanism through the follow-up rotating mechanism. The trigger reset mechanism includes a guide column 13 slidably mounted on the first guide sleeve 11, the guide column 13 is slidably connected to the push ring 19, a first movable ring 12 sleeved on the rotating rod 10 is installed on the guide column 13, and the rotating rod 10 is provided with a first movable ring 12 connected to the guide column 1 3, wherein the limiting assembly includes a first vertical groove 1001 and a first spiral groove 1002 provided on the rotating rod 10, a second movable ring 14 sleeved on the rotating rod 10 is installed on the guide column 13, and a first limiting block 15 slidably connected to the first vertical groove 1001 and the first spiral groove 1002 is provided on the inner wall of the second movable ring 14; and further includes a first spring 16 sleeved on the rotating rod 10, and the two ends of the first spring 16 are respectively abutted against the first guide sleeve 11 and the second movable ring 14.

[0047] To go further, in the initial state, the trolley 2 is in a working state, the first threaded sleeve 6 is located at the end of the stroke toward the handwheel 4, the first spring 16 is in a compressed state, and provides a certain thrust to the second movable ring 14, so that the second movable ring 14 is located at the end of the stroke away from the first guide sleeve 11, and the second movable ring 14 will also control the first movable ring 12 to fit with the first guide sleeve 11 through the guide column 13. When the position of the trolley 2 needs to be adjusted, at this time, the handwheel 4 rotates and drives the screw rod 5 to rotate, thereby driving the first threaded sleeve 6 and the second threaded sleeve 17 to move. The first threaded sleeve 6 will drive the first guide sleeve 11 to move, and push the second movable ring 14 to move synchronously through the first spring 16, so as to control the first movable ring 12 to always be in a fit state with the first guide sleeve 11 through the guide column 13, and the second movable ring 14 will also control the first limit block 15 to move along the length direction of the first vertical groove 1001 , the second threaded sleeve 17 will drive the second guide sleeve 18 to move, so as to control the second limit block 20 to move along the length direction of the second vertical groove 1003 through the pushing ring 19. When the first limit block 15 moves to the connection position of the first vertical groove 1001 and the first spiral groove 1002, the second limit block 20 is still in the second vertical groove 1003, and the rotating rod 10 will not rotate. Therefore, the second movable ring 14 no longer moves. At this time, the first guide sleeve 11 will compress the first spring 16 and separate from the first movable ring 12. When the second limit block 20 moves to the connection position of the second vertical groove 1003 and the annular groove 1004, the rotating rod 10 will rotate, so that the second limit block 20 enters the annular groove 1004. At the same time, the first spring 16 is elastically released and controls the first limit block 15 to enter the first spiral groove 1002 through the second movable ring 14. At this time, the circuit breaker is disconnected and the trolley 2 can move freely.

[0048] Preferably, when the trolley 2 moves to the test position, if the circuit breaker needs to be turned on, at this time, the hand wheel 4 is reversed, so that the first threaded sleeve 6 and the second threaded sleeve 17 move toward the initial position, so as to drive the first guide sleeve 11 and the second guide sleeve 18 to move. Since the second limit block 20 is located in the annular groove 1004, the push ring 19 will not move with the second guide sleeve 18. When the first guide sleeve 11 moves to the position of contact with the first movable ring 12, the first movable ring 12 is driven to move, thereby controlling the movement of the second movable ring 14 through the guide column 13, so that the first limit block 15 slides along the first spiral groove 1002 to rotate the rotating rod 10 toward the initial angle. When the first limit block 15 disengages from the first spiral groove 1002, the second limit block 20 just disengages from the annular groove 1004. At this time, the moving contact 29 moves again to the position of contacting with the static contact 30, so that the circuit breaker is turned on again. At this time, the second spring 21 and the third spring 24 are elastically released, so that the push ring 19 moves with the second guide sleeve 18 until the first threaded sleeve 6 and the second threaded sleeve 17 are reset, and under the action of the limit column 9, the trolley 2 is locked in the test position again.

[0049] Among them, during the disconnection process of the circuit breaker, the first limit block 15 will not affect the disconnection of the circuit breaker. When the trolley 2 moves to the test position, it is only necessary to simply adjust the position of the first limit block 15 to control the circuit breaker to be turned on again, thereby realizing the locking of the trolley 2 and the opening and closing states of the circuit breaker and the grounding switch by controlling the rotation of the handwheel 4.

[0050] A method for disconnecting a high-voltage trolley-type switch cabinet comprises the following steps: Step 1: In the initial state, the position of the opponent car 2 is locked under the action of the displacement locking mechanism; Step 2: When the position of the trolley 2 needs to be adjusted, the follow-up rotating mechanism and the trigger reset mechanism are controlled to move under the action of the displacement locking mechanism, and the controller 31 is controlled to disconnect through the disconnection regulating mechanism to put the circuit breaker in the disconnected state; Step 3: At this time, the position of the trolley 2 can be adjusted. When the trolley 2 moves to the test position, under the action of the displacement locking mechanism, the follow-up rotating mechanism is reset by triggering the reset mechanism, so as to drive the controller 31 to be turned on again through the disconnection regulating mechanism; Step 4: The displacement locking mechanism can also lock the position of the trolley 2 again to ensure that the position of the trolley 2 does not change when the circuit breaker is turned on.

[0051] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0052] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-voltage trolley-type switch cabinet, comprising: A cabinet (1), and a slide groove (101) provided in the cabinet (1), a trolley (2) being slidably mounted in the slide groove (101), and a fixing plate (3) being provided in the cabinet (1); It is characterized by further comprising: A displacement locking mechanism, arranged on the fixing plate (3) and connected to the trolley (2), and used for adjusting the locking state of the trolley (2); A controller (31) is installed in the cabinet (1); a connection and disconnection regulating mechanism connected to the controller (31) is provided on the fixing plate (3); a follower rotating mechanism is provided on the displacement locking mechanism; the follower rotating mechanism can adjust the switch state of the controller (31) through the connection and disconnection regulating mechanism when the displacement locking mechanism moves; A trigger reset mechanism is arranged on the displacement locking mechanism and connected to the follower rotating mechanism. The trigger reset mechanism can be activated when the displacement locking mechanism locks the trolley (2) to control the reset of the disconnection regulating mechanism through the follower rotating mechanism.

2. A high-voltage trolley-type switch cabinet according to claim 1, characterized in that: The displacement locking mechanism comprises a screw rod (5) rotatably mounted on the fixing plate (3), a hand wheel (4) being arranged at the end of the screw rod (5), and a first threaded sleeve (6) being movably mounted on the screw rod (5) and threadably matched with the screw rod (5); It also comprises a rotating rod (10) rotatably mounted on the fixed plate (3), a first guide sleeve (11) being slidably mounted on the rotating rod (10), the first guide sleeve (11) being connected to the first threaded sleeve (6), and a guide assembly connected to the trolley (2) being provided on the first threaded sleeve (6).

3. A high-voltage trolley-type switch cabinet according to claim 2, characterized in that: The guide assembly comprises a support plate (7) mounted on the side wall of the first threaded sleeve (6), a guide groove (8) being provided on the support plate (7), a limit column (9) being slidably mounted in the guide groove (8), and a guide groove slidably connected to the limit column (9) being provided at the bottom of the trolley (2).

4. A high-voltage trolley-type switch cabinet according to claim 2, characterized in that: The connection and disconnection regulating mechanism comprises a support rod (26) mounted on the fixed plate (3), a sliding sleeve (27) being slidably mounted on the support rod (26), a moving contact (29) being arranged on a side wall of the sliding sleeve (27), a stationary contact (30) cooperating with the moving contact (29) being arranged at an end of the support rod (26), and a driven component connected to the sliding sleeve (27) being arranged on the rotating rod (10).

5. A high-voltage trolley-type switch cabinet according to claim 4, characterized in that: The driven assembly comprises a rotating ring (25) mounted on the end of the rotating rod (10), a third spiral groove (2501) being provided on the outer wall of the rotating ring (25), and a protruding column (28) being slidably connected to the third spiral groove (2501) being provided on the side wall of the sliding sleeve (27).

6. A high-voltage trolley-type switch cabinet according to claim 2, characterized in that: The follow-up rotating mechanism comprises a second threaded sleeve (17) movably mounted on the screw rod (5) and threadably matched with the screw rod (5); a second guide sleeve (18) connected to the second threaded sleeve (17) is slidably mounted on the rotating rod (10); The invention also comprises a second vertical groove (1003) and an annular groove (1004) provided on the rotating rod (10); a push ring (19) is slidably mounted on the rotating rod (10) and is in contact with the second guide sleeve (18); a second limit block (20) is slidably connected to the second vertical groove (1003) and the annular groove (1004) on the inner wall of the push ring (19); and an elastic component connected to the push ring (19) is provided on the rotating rod (10).

7. A high-voltage trolley-type switch cabinet according to claim 6, characterized in that: The elastic component comprises a second spiral groove (1005) formed on the rotating rod (10); a movable plate (22) slidably connected to the screw rod (5) is slidably mounted on the rotating rod (10); and a third limit block (23) slidably connected to the second spiral groove (1005) is provided on the inner wall of the movable plate (22); It also includes a second spring (21) and a third spring (24) sleeved on the rotating rod (10), wherein two ends of the second spring (21) are respectively in contact with the movable plate (22) and the pushing ring (19), and the third spring (24) is in contact with the movable plate (22).

8. A high-voltage trolley-type switch cabinet according to claim 6, characterized in that: The trigger reset mechanism comprises a guide column (13) slidably mounted on the first guide sleeve (11), the guide column (13) being slidably connected to the push ring (19), a first movable ring (12) sleeved on the rotating rod (10) being mounted on the guide column (13), and a limit assembly connected to the guide column (13) being provided on the rotating rod (10).

9. A high-voltage trolley-type switch cabinet according to claim 8, characterized in that: The limiting assembly comprises a first vertical groove (1001) and a first spiral groove (1002) provided on the rotating rod (10); a second movable ring (14) sleeved on the rotating rod (10) is mounted on the guide column (13); and a first limiting block (15) slidably connected to the first vertical groove (1001) and the first spiral groove (1002) is provided on the inner wall of the second movable ring (14); It also includes a first spring (16) sleeved on the rotating rod (10), with two ends of the first spring (16) respectively abutting against the first guide sleeve (11) and the second movable ring (14).

10. A method for disconnecting a high-voltage trolley-type switch cabinet, using the high-voltage trolley-type switch cabinet as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: In the initial state, the position of the opponent vehicle (2) is locked under the action of the displacement locking mechanism; Step 2: When the position of the trolley (2) needs to be adjusted, the follow-up rotating mechanism and the trigger reset mechanism are controlled to move under the action of the displacement locking mechanism, and the controller (31) is controlled to disconnect through the disconnection regulating mechanism, so that the circuit breaker is in the disconnected state; Step 3: At this time, the position of the trolley (2) can be adjusted. When the trolley (2) moves to the test position, the follow-up rotating mechanism is reset by triggering the reset mechanism under the action of the displacement locking mechanism, so as to drive the controller (31) to be connected again through the disconnection regulating mechanism; Step 4: The displacement locking mechanism can also lock the position of the trolley (2) again to ensure that the position of the trolley (2) does not change when the circuit breaker is turned on.

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