Movable locking structure, switch cabinet, locking method

Abstract

The application discloses an activity locking structure, a switch cabinet and a locking method, and belongs to the technical field of power grid equipment, wherein the activity locking structure comprises a cabinet body, a shielding piece, a first supporting rod, a moving rod, a limiting electronic lock and a control console, the shielding piece is sleeved with the first supporting rod and is in sliding cooperation with the first supporting rod, and the moving rod is installed on the shielding piece; the limiting electronic lock is installed on the cabinet body, the limiting electronic lock is provided with a lock tongue plate which is used for cooperating with the moving rod; the control console is electrically connected with the limiting electronic lock, and the control console is used for monitoring the locking state of the limiting electronic lock; and the shielding piece has two moving positions, and the shielding piece is limited by the lock tongue plate at one of the moving positions. The shielding piece is used for shielding a leakage position or a dangerous position in the cabinet body, when the shielding piece moves to one of the moving positions, the shielding piece is limited by the lock tongue plate, and maintenance personnel is prevented from entering the cabinet body and touching dangerous equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power grid equipment, in particular to a movable locking structure, a switch cabinet and a locking method. BACKGROUND

[0002] In the existing power system, a switch cabinet is generally needed to control each power grid module of the power distribution network. In the switch cabinet, when the circuit breaker is pulled out of the cabinet body, the movable contact of the circuit breaker is separated from the static contact, and the switch cabinet is in a power-off state.

[0003] However, when the circuit breaker or the electronic components in the cabinet body are damaged or need to be regularly cleaned of dust and maintained, maintenance personnel need to enter the cabinet body for inspection or maintenance. After the maintenance personnel enter the cabinet body, the static contact is in the cabinet body and is easy to be misoperated by the maintenance personnel. Therefore, the maintenance personnel are prone to electric shock accidents during maintenance. SUMMARY

[0004] The present application aims to improve the problem that the maintenance personnel of the existing switch cabinet are prone to electric shock during maintenance, and provides a movable locking structure, a switch cabinet and a locking method.

[0005] The technical solutions for achieving the above-mentioned purposes include the following:

[0006] The movable locking structure comprises a cabinet body, a shielding piece, a first supporting rod, a moving rod, a limiting electronic lock and a control console. The first supporting rod is installed in the cabinet body. The shielding piece is sleeved on the outside of the first supporting rod and is in sliding cooperation with the first supporting rod. The moving rod is installed on the shielding piece.

[0007] The limiting electronic lock is installed on the cabinet body. The limiting electronic lock has a lock tongue plate for cooperating with the moving rod. The control console is electrically connected with the limiting electronic lock and is used for monitoring the locking state of the limiting electronic lock. The shielding piece has two moving positions. In one of the moving positions, the shielding piece is limited by the lock tongue plate.

[0008] The present application further provides a switch cabinet. The switch cabinet comprises a circuit breaker, a static contact, a driving assembly and the movable locking structure as described above. The cabinet body has a first cavity. The static contact and the circuit breaker are arranged in the first cavity. In a first direction, the circuit breaker is in sliding cooperation with the inner wall of the cabinet body. The circuit breaker has a movable contact for conducting with the static contact.

[0009] The shielding piece is installed on the output end of the driving assembly. The driving assembly is arranged in the cabinet body.

[0010] Two moving positions of the shielding piece are arranged in the second direction, the shielding piece is close to the static contact and shields the opening of the static contact in one of the moving positions, and the shielding piece is limited by the locking tongue plate.

[0011] In one of the embodiments, the switch cabinet further has a sensing assembly installed in the cabinet body and electrically connected with the control console; the circuit breaker has a trigger, which is in sensing cooperation with the sensing assembly.

[0012] In one of the embodiments, the sensing assembly includes a first Hall element and a second Hall element, the trigger includes a first magnetic steel and a second magnetic steel, the first Hall element and the second Hall element are arranged in a first direction, the first magnetic steel is in sensing cooperation with the first Hall element, and the second magnetic steel is in sensing cooperation with the second Hall element; the first Hall element and the second Hall element are both electrically connected with the control console.

[0013] In one of the embodiments, the driving assembly includes a first pushing piece and a fourth pushing piece, the shielding piece includes a first baffle, the first baffle is sleeved on the first supporting rod and in sliding cooperation with the first supporting rod;

[0014] The first pushing piece is in a bent shape, the bent part of the first pushing piece is rotatably installed on the inner wall of the cabinet body; the first end of the first pushing piece is installed on the first baffle and in rotational cooperation with the first baffle; the first end of the fourth pushing piece is rotatably connected with the second end of the first pushing piece, and the second end of the fourth pushing piece is rotatably installed in the cabinet body.

[0015] In one of the embodiments, the shielding piece includes a first baffle and a second baffle, the driving assembly includes a first supporting rod, a first pushing piece, a second pushing piece, and a third pushing piece, the first supporting rod is installed in the cabinet body, and the first baffle and the second baffle are both sleeved on the first supporting rod and in sliding cooperation with the first supporting rod;

[0016] The first end of the first pushing piece is in rotational cooperation with the first baffle, the first end of the second pushing piece is in rotational cooperation with the second baffle, the first end of the third pushing piece is in rotational cooperation with the second end of the first pushing piece, and the second end of the third pushing piece is in rotational cooperation with the second end of the second pushing piece;

[0017] The static contact is arranged between the first baffle and the second baffle; the third pushing piece is in cooperation with the circuit breaker, and the third pushing piece is used to drive the first pushing piece and the second pushing piece to have a moving path of approaching or moving away from each other between the first baffle and the second baffle.

[0018] In one of the embodiments, the driving assembly further comprises a fourth pushing member, a first end of the fourth pushing member is in transmission connection with the third pushing member, and a second end of the fourth pushing member is rotationally arranged in the cabinet body; the fourth pushing member is at least partially arranged in an inclined manner, and the fourth pushing member has a guide inclined surface for sliding cooperation with the circuit breaker.

[0019] The weight of the first baffle is greater than the weight of the second baffle.

[0020] In one of the embodiments, the driving assembly further has a reset member, and the first baffle and the second baffle are connected through the reset member.

[0021] In one of the embodiments, the first pushing member comprises a first connecting rod, a second connecting rod and a pin shaft, a first end of the first connecting rod and a first end of the second connecting rod are fixed, and the first end of the first connecting rod and the first end of the second connecting rod are rotationally arranged on the inner wall of the cabinet body through the pin shaft, and a second end of the second connecting rod is rotationally mounted on the side wall of the first baffle.

[0022] The second pushing member comprises a third connecting rod, a fourth connecting rod and a pin shaft, a first end of the third connecting rod and a first end of the fourth connecting rod are fixed, and the first end of the third connecting rod and the first end of the fourth connecting rod are arranged on the inner wall of the cabinet body through the pin shaft, and a second end of the fourth connecting rod is rotationally mounted on the side wall of the second baffle.

[0023] The application further provides a locking method of the movable locking structure, comprising the following steps:

[0024] Step one: when the shielding member moves to one of the moving positions, the shielding member protects the dangerous position of the cabinet body.

[0025] Step two: the control console acquires the position information of the shielding member, sends an electric signal, and drives the limit electronic lock, the lock tongue plate of the limit electronic lock abuts against the moving rod, and limits the movement of the shielding member.

[0026] The technical scheme provided by the application has the following advantages and effects:

[0027] The shielding member is used for shielding the electric leakage position or the dangerous position in the cabinet body, avoids the maintenance personnel from entering the cabinet body to touch the dangerous equipment, and avoids the risk of electric shock of the maintenance personnel. When the shielding member moves to one of the moving positions, the shielding member is limited by the lock tongue plate, the maintenance personnel is avoided from moving the shielding member, and the mistake operation of the maintenance personnel is avoided. The control console remotely controls the limit electronic lock, improves the safety in the cabinet body, and facilitates the control of the limit electronic lock, so that the shielding member is reset after the maintenance personnel leaves the cabinet body. BRIEF DESCRIPTION OF DRAWINGS

[0028] The drawings here show the specific examples of the technical solutions of the present application, and constitute a part of the specification together with the specific embodiments, for explaining the technical solutions, principles and effects of the present application.

[0029] Unless specifically stated or otherwise defined, the same reference signs in different drawings represent the same or similar technical features, and different reference signs can also be used to represent the same or similar technical features.

[0030] Figure 1 is a schematic diagram of a switch cabinet in an embodiment of the present application Figure 1 ;

[0031] Figure 2 is a schematic diagram of a switch cabinet in an embodiment of the present application Figure 2 ;

[0032] Figure 3 is a schematic diagram of a switch cabinet in an embodiment of the present application Figure 3 ;

[0033] Figure 4 is a front view of a cabinet body in an embodiment of the present application;

[0034] Figure 5 is a sectional view of a switch cabinet in an embodiment of the present application;

[0035] Figure 6 is a schematic diagram of the connection between a drive assembly and a shielding piece in an embodiment of the present application;

[0036] Figure 7 is a schematic diagram of the connection between a drive assembly and a shielding piece in an embodiment of the present application;

[0037] Figure 8 is a schematic diagram of a limit electronic lock in an embodiment of the present application;

[0038] Legend of reference signs:

[0039] 100, switch cabinet;

[0040] 1, cabinet body; 11, first chamber; 12, guide rail; 13, static contact; 14, operating cabinet door;

[0041] 2, circuit breaker; 21, dynamic contact;

[0042] 3, sensing assembly; 31, first Hall element; 32, second Hall element;

[0043] 4, movable locking structure; 40, shielding piece; 41, first baffle; 42, second baffle; 43, drive assembly;

[0044] 431, first pusher; 4311, first connecting rod; 4312, second connecting rod;

[0045] 432, second pushing member; 4321, third connecting rod; 4322, fourth connecting rod;

[0046] 433, third pushing member; 4331, second support rod; 4332, fifth connecting rod; 4333, sixth connecting rod;

[0047] 434, fourth pushing member; 4341, first support plate; 4342, rotating shaft; 4343, pushing rod; 4344, transmission rod; 4345, guide inclined surface;

[0048] 44, limit electronic lock; 441, lock tongue plate; 442, keyhole;

[0049] 45, first support rod;

[0050] 46, moving rod. DETAILED DESCRIPTION

[0051] In order to facilitate the understanding of the present application, specific embodiments of the present application will be described in more detail below with reference to the accompanying drawings.

[0052] Unless specifically stated or otherwise defined, the terms "first", "second" or the like used herein are merely used to distinguish one element from another, and do not necessarily indicate the specific number or order.

[0053] Unless specifically stated or otherwise defined, the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0054] It should be noted that when an element is considered to be "fixed to" another element, it can be directly fixed to the other element or a middle element can exist; when an element is considered to be "connected to" another element, it can be directly connected to the other element or a middle element can exist; when an element is considered to be "mounted on" another element, it can be directly mounted on the other element or a middle element can exist. When an element is considered to be "provided on" another element, it can be directly provided on the other element or a middle element can exist.

[0055] Example one

[0056] The present application discloses a movable locking structure 4, such as Figures 1 to 5 , Figure 8As shown, the cabinet includes a cabinet body 1, a shielding piece 40, a first support rod 45, a moving rod 46, a limiting electronic lock 44, a control console, the shielding piece 40 is sleeved on the first support rod 45 and is in sliding fit with the first support rod 45, the moving rod 46 is installed on the shielding piece 40, the limiting electronic lock 44 is installed on the cabinet body 1, the limiting electronic lock 44 has a lock tongue plate 441 for cooperating with the moving rod 46, the control console is electrically connected with the limiting electronic lock 44, and the control console is used for monitoring the locking state of the limiting electronic lock 44; wherein the shielding piece 40 has two moving positions, in one of the moving positions, the shielding piece 40 is limited by the lock tongue plate 441. Specifically, the shielding piece 40 is used for shielding the electric leakage position or the dangerous position in the cabinet body 1, to avoid the maintenance personnel from entering the cabinet body 1 to touch the dangerous equipment and to avoid the risk of electric shock of the maintenance personnel. Moreover, when the shielding piece 40 moves to one of the moving positions, the shielding piece 40 is limited by the lock tongue plate 441, to avoid the maintenance personnel from moving the shielding piece 40 and to avoid the fault operation of the maintenance personnel. The control console remotely controls the limiting electronic lock 44, to improve the safety of the cabinet body 1 and to facilitate the operation of the limiting electronic lock 44, so that the shielding piece 40 is reset after the maintenance personnel leaves the cabinet body 1.

[0057] In the embodiment, the movable locking structure 4 can be applied to different scenes, as long as it is required to prevent misoperation or to protect the dangerous position, and the structure can be used for protection, which is not particularly limited here.

[0058] Embodiment two

[0059] The application further discloses a switch cabinet 100, as shown in the drawings. Figures 1 to 5 As shown, the switch cabinet includes a circuit breaker 2, a static contact 13, a driving assembly 43, the movable locking structure 4 as described above, the cabinet body 1 has a first cavity 11, the static contact 13 and the circuit breaker 2 are arranged in the first cavity 11; in a first direction, the circuit breaker 2 is in sliding fit with the inner wall of the cabinet body 1; the circuit breaker 2 has a moving contact 21 for conducting with the static contact 13; the shielding piece 40 is installed on the output end of the driving assembly 43, and the driving assembly 43 is arranged in the cabinet body 1; the two moving positions of the shielding piece 40 are arranged in a second direction, in one of the moving positions, the shielding piece 40 is close to the static contact 13 and shields the opening of the static contact 13, and the shielding piece 40 is limited by the lock tongue plate 441.

[0060] Specifically, the two moving positions include a first moving position and a second moving position. When the switch cabinet 100 needs to be overhauled, the maintenance personnel move the circuit breaker 2 out of the cabinet 1, operate the driving assembly 43 to drive the shielding piece 40 to move to the first moving position, and the static contact 13 is shielded by the shielding piece 40, so that the maintenance personnel cannot operate the static contact 13 in the cabinet 1, which can avoid the maintenance personnel from touching the static contact 13 during the overhaul, avoid the maintenance personnel from being electrically shocked due to mistaken operation in the cabinet 1, and improve the safety of the maintenance personnel during the overhaul. After the overhaul of the switch cabinet 100 is completed, the maintenance personnel control the driving assembly 43 to drive the shielding piece 40 to move to the second moving position, so that the static contact 13 is exposed, the circuit breaker 2 is moved into the cabinet 1, the moving contact 21 is in contact with the static contact 13, and conduction is realized, so that the switch cabinet 100 can be normally used.

[0061] In some embodiments, the switch cabinet 100 further has an induction assembly 3 installed in the cabinet 1 and electrically connected with the control console; and the circuit breaker 2 has a trigger piece that is in induction cooperation with the induction assembly 3. Specifically, the induction assembly 3 is arranged to induct the trigger piece on the circuit breaker 2. When the circuit breaker 2 is moved out of the cabinet 1, the trigger piece is in induction cooperation with the induction assembly 3, and an electrical signal is generated and sent to the control console, so that the control console remotely controls the limiting electronic lock 44 to lock the position of the shielding piece 40. The position of the circuit breaker 2 in the cabinet 1 can be inductively detected by the induction assembly 3, so that the control console can timely understand the state of the switch cabinet 100.

[0062] In some embodiments, the induction assembly 3 includes a first Hall element 31 and a second Hall element 32, the trigger piece includes a first magnetic steel and a second magnetic steel (not shown in the figure), the first Hall element 31 and the second Hall element 32 are arranged in a first direction, the first magnetic steel is in induction cooperation with the first Hall element 31, and the second magnetic steel is in induction cooperation with the second Hall element 32; and the first Hall element 31 and the second Hall element 32 are electrically connected with the control console. Specifically, when the first magnetic steel is close to the first Hall element 31, the first Hall element 31 generates a first electrical signal; and when the second magnetic steel is close to the second Hall element 32, the second Hall element 32 generates a second electrical signal.

[0063] In the use scene, when the circuit breaker 2 moves out to a certain distance in the cabinet 1, the moving contact 21 is disconnected with the static contact 13, the first Hall element 31 detects the position of the circuit breaker 2 and generates a first electric signal which is sent to the control console, and the control console knows the position of the circuit breaker 2 in the cabinet 1 and the state of the switch cabinet 100, so that the limiting electronic lock 44 does not need to be controlled at this time. When the circuit breaker 2 is completely moved out of the cabinet 1, the first Hall element 31 and the second Hall element 32 are respectively inducted with the first magnetic steel and the second magnetic steel, and the first electric signal and the second electric signal are generated and sent to the control console. After receiving the two electric signals, the control console knows that the circuit breaker 2 is completely moved out of the cabinet 1, and the cabinet 1 is in a maintenance state, and the control console sends a signal to the limiting electronic lock 44 to limit the movement of the shielding piece 40, thereby further improving the stability of the shielding piece 40 in the cabinet 1.

[0064] In other embodiments, when the circuit breaker 2 moves into the cabinet 1, the first electric signal and the second electric signal of the control console disappear, and the control console can also automatically control the limiting electronic lock 44 to close, thereby canceling the limiting effect on the shielding piece 40, so that the shielding piece 40 can be reset.

[0065] In other embodiments, the limiting electronic lock 44 also has a key hole 442 for inserting a mechanical key, so that the mechanical key can open the limiting electronic lock 44. In special cases, the static contact 13 also needs to be maintained. Of course, when the static contact 13 is maintained, the administrator can control whether the maintenance personnel can maintain the static contact 13 according to the mechanical key.

[0066] In some embodiments, the cabinet 1 also has a second chamber, the first chamber 11 is separated from the second chamber by a partition, and the cabinet 1 has an operating cabinet door 14 which can open or close the second chamber. The second chamber is used for placing a control circuit board and some electronic components, the control circuit board is electrically connected with the limiting electronic lock 44, and the operation button can be arranged on the operating cabinet door 14. The control circuit board is driven by the operation button, so as to drive the limiting electronic lock 44 to limit the movement of the shielding piece 40.

[0067] The application also provides a locking method of the switch cabinet 100 with the movable locking structure 4, which comprises the following steps:

[0068] Step one, when the switch cabinet 100 needs to be maintained, the circuit breaker 2 is moved from the first direction, so that the circuit breaker 2 is moved out of the cabinet 1, and the moving contact 21 is separated from the static contact 13; the shielding piece 40 is moved to the first moving position, and the shielding piece 40 protects the electric leakage position of the cabinet 1;

[0069] Step two, the console obtains the position information of the shielding piece 40, the console sends an electrical signal, and drives the limit electronic lock 44, the lock tongue plate 441 of the limit electronic lock 44 abuts against the moving rod 46, and limits the movement of the shielding piece 40; the static contact 13 is shielded by the shielding piece 40, and the maintenance personnel enter the first cavity 11 for maintenance.

[0070] Step three, after the maintenance is completed, the maintenance personnel move out of the first cavity 11, the drive assembly 43 drives the shielding piece 40 to move to the second moving position, and the circuit breaker 2 moves into the cabinet 1, and the moving contact 21 at least partially inserts into the static contact 13.

[0071] Through this method, when the maintenance personnel maintain the switch cabinet 100, the shielding piece 40 moves to the first moving position to shield the static contact 13, so as to avoid the risk of electric shock caused by the maintenance personnel operating the static contact 13 by mistake.

[0072] In other embodiments, the circuit breaker 2 moves into the cabinet 1, and the circuit breaker 2 can cooperate with the drive assembly 43, the circuit breaker 2 applies the force of the drive assembly 43 in the cabinet 1, so that the drive assembly 43 automatically pushes the shielding piece 40 to move to the second moving position; when the circuit breaker 2 moves out of the cabinet 1, the force of the drive assembly 43 disappears, so that the drive assembly 43 automatically controls the shielding piece 40 to reset and move to the first moving position, so that the movement of the shielding piece 40 can be automatically controlled, and the maintenance personnel do not need to operate the drive assembly 43 again.

[0073] In some embodiments, as shown in Figure 5 and Figure 6 , the shielding piece 40 includes a first baffle 41 and a second baffle 42, the drive assembly 43 includes a first pushing piece 431, a second pushing piece 432, and a third pushing piece 433, the first support rod 45 is installed in the cabinet 1, the first baffle 41 and the second baffle 42 are sleeved outside the first support rod 45 and are in sliding cooperation with the first support rod 45; the first end of the first pushing piece 431 is in rotary cooperation with the first baffle 41, the first end of the second pushing piece 432 is in rotary cooperation with the second baffle 42, the first end of the third pushing piece 433 is in rotary cooperation with the second end of the first pushing piece 431, and the second end of the third pushing piece 433 is in rotary cooperation with the second end of the second pushing piece 432; the static contact 13 is arranged between the first baffle 41 and the second baffle 42; the third pushing piece 433 cooperates with the circuit breaker 2, and the third pushing piece 433 is used to drive the first pushing piece 431 and the second pushing piece 432, so that the first baffle 41 and the second baffle 42 have a moving path of approaching each other or moving away from each other.

[0074] Specifically, as shown in Figure 6As shown, the first push member 431 and the second push member 432 are respectively in rotational cooperation with the third push member 433, and a lever structure is formed between the first push member 431, the second push member 432 and the third push member 433. When the third push member 433 is fixed with the circuit breaker 2, the circuit breaker 2 drives the third push member 433 to move when the circuit breaker 2 moves. When the circuit breaker 2 is moved out of the cabinet 1, the circuit breaker 2 applies a forward force to the third push member 433, so that the third push member 433 simultaneously drives the first push member 431 and the second push member 432 to move close to each other, and the first baffle 41 and the second baffle 42 are close to each other and abutted. The first baffle 41 and the second baffle 42 shield the static contact 13, so that the maintenance personnel cannot touch the static contact 13 when entering the cabinet 1 for maintenance. When the circuit breaker 2 enters the cabinet 1, the circuit breaker 2 applies a reverse force to the third push member 433, so that the third push member 433 simultaneously drives the first push member 431 and the second push member 432 to move away from each other, and the first baffle 41 and the second baffle 42 are both moved away from the static contact 13 and exposed. When the circuit breaker 2 moves to a certain distance and contacts the static contact 13, the switch cabinet 100 is turned on. In this way, the position of the shielding member 40 can be automatically controlled without additional operation.

[0075] In the embodiment, the first push member 431, the second push member 432 and the third push member 433 can be a bent lever transmission structure, or a gear transmission structure or a chain transmission structure. In the gear transmission structure, the gear transmission structure includes a gear and two racks, the gear is respectively engaged with the two racks, the two racks are oppositely arranged, and the gear rotates clockwise or counterclockwise to simultaneously drive the two racks to move close to or away from each other. The two racks correspond to the first push member 431 and the second push member 432, and the gear corresponds to the third push member 433. Through such a gear transmission structure, the first baffle 41 and the second baffle 42 can have a moving path of moving close to or away from each other. Therefore, in the embodiment, the specific structure of the first push member 431, the second push member 432 and the third push member 433 is not particularly limited.

[0076] Preferably, the drive assembly 43 has two groups, and the two groups of drive assemblies 43 are respectively installed on the two sides of the cabinet 1 and are respectively in sliding cooperation with the two ends of the circuit breaker 2. By moving the circuit breaker 2, the two ends of the circuit breaker 2 respectively apply a force to the drive assembly 43, thereby further improving the driving force of the shielding member 40.

[0077] In some embodiments, as Figure 6 and Figure 7As shown, the driving assembly 43 further comprises a fourth pushing member 434, a first end of the fourth pushing member 434 is in transmission connection with the third pushing member 433, and a second end of the fourth pushing member 434 is rotationally arranged in the cabinet 1; the fourth pushing member 434 is at least partially arranged in an inclined manner, and the fourth pushing member 434 has a guide inclined surface 4345 for sliding cooperation with the circuit breaker 2; the weight of the first baffle 41 is greater than the weight of the second baffle 42. Specifically, when the circuit breaker 2 moves into the cabinet 1, the circuit breaker 2 is in sliding cooperation with the guide inclined surface 4345 of the fourth pushing member 434, in the sliding cooperation, the circuit breaker 2 will press the fourth pushing member 434, so as to make the fourth pushing member 434 pull the third pushing member 433 to move, so that the third pushing member 433 generates a reverse force, and drives the first pushing member 431 and the second pushing member 432 to move away from each other, so that the static contact 13 is exposed and contacts with the moving contact 21 of the circuit breaker 2. When the circuit breaker 2 moves out of the cabinet 1, due to the weight of the first baffle 41 being greater than the weight of the second baffle 42, the first baffle 41 slides downward due to gravity and generates a force, the force is transmitted to the second pushing member 432 through the first pushing member 431 and the third pushing member 433, so as to make the second pushing member 432 push the second baffle 42 to move upward, so as to realize the mutual approaching of the first baffle 41 and the second baffle 42, and form a shielding effect on the static contact 13.

[0078] In some embodiments, the driving assembly 43 further has a reset member (not shown in the figure), the first baffle 41 and the second baffle 42 are connected through the reset member. Preferably, the reset member can be a reset spring, when the circuit breaker 2 moves into the cabinet 1, the fourth pushing member 434 generates a force, and the force is transmitted to the first pushing member 431 and the second pushing member 432 through the third pushing member 433, so as to make the first baffle 41 and the second baffle 42 move away from each other, the first baffle 41 and the second baffle 42 pull the reset spring, the reset spring is stretched to generate a reverse force; when the circuit breaker 2 moves out of the cabinet 1, the force of the fourth pushing member 434 disappears, and the reverse force of the reset spring drives the first baffle 41 and the second baffle 42 to move close to each other, so as to shield the static contact 13.

[0079] Preferably, as Figure 7As shown, the first pushing member 431 comprises a first connecting rod 4311, a second connecting rod 4312, and a pin shaft, the first end of the first connecting rod 4311 and the first end of the second connecting rod 4312 are fixed, and the first end of the first connecting rod 4311 and the first end of the second connecting rod 4312 are rotatably arranged on the inner wall of the cabinet body 1 through the pin shaft, and the second end of the second connecting rod 4312 is rotatably mounted on the side wall of the first baffle 41. Specifically, the first connecting rod 4311 and the second connecting rod 4312 are fixed and then rotatably matched with the inner wall of the cabinet body 1 through the pin shaft, and the first connecting rod 4311 and the second connecting rod 4312 have pin holes for the pin shaft to pass through, forming a connection relationship of rotation with the cabinet body 1. The first connecting rod 4311 and the second connecting rod 4312 form a lever structure, when the second end of the first connecting rod 4311 is driven to move downward, the first pushing member 431 rotates around the rotation point between the first connecting rod 4311 and the second connecting rod 4312, and pushes the first baffle 41 to move downward through the second connecting rod 4312. The second end of the first connecting rod 4311 moves upward, and the first baffle 41 moves upward, and the transmission principle is not repeated here.

[0080] Preferably, as Figure 7 As shown, the second pushing member 432 comprises a third connecting rod 4321, a fourth connecting rod 4322, and a pin shaft, the first end of the third connecting rod 4321 and the first end of the fourth connecting rod 4322 are fixed, and the first end of the third connecting rod 4321 and the first end of the fourth connecting rod 4322 are rotatably arranged on the inner wall of the cabinet body 1 through the pin shaft, and the second end of the fourth connecting rod 4322 is rotatably mounted on the side wall of the second baffle 42. Specifically, the third connecting rod 4321 and the fourth connecting rod 4322 are fixed and then rotatably matched with the inner wall of the cabinet body 1 through the pin shaft, and the third connecting rod 4321 and the fourth connecting rod 4322 form a lever structure; when the second end of the third connecting rod 4321 is driven to move upward, the second pushing member 432 rotates around the rotation point between the third connecting rod 4321 and the fourth connecting rod 4322, and pushes the second baffle 42 to move upward through the fourth connecting rod 4322. The second end of the third connecting rod 4321 moves downward, and the second baffle 42 moves downward, and the transmission principle is not repeated here.

[0081] In this embodiment, as Figure 6 As shown, the first pushing member 431 and the second pushing member 432 are arranged in opposite directions, forming completely opposite lever structures, such as the third pushing member 433 controls the first pushing member 431 and the second pushing member 432 to approach each other, and the first pushing member 431 and the second pushing member 432 respectively drive the first baffle 41 and the second baffle 42 to approach each other at the same time; on the contrary, the third pushing member 433 controls the first pushing member 431 and the second pushing member 432 to move away from each other, and the first pushing member 431 and the second pushing member 432 also respectively drive the first baffle 41 and the second baffle 42 to move away from each other.

[0082] Preferred, such as Figure 7 As shown, the third pushing member 433 includes a second support rod 4331, a fifth connecting rod 4332, and a sixth connecting rod 4333. The first end of the fifth connecting rod 4332 is fixed to the second end of the third connecting rod 4321, and the second end of the fifth connecting rod 4332 is rotatably connected to the first end of the sixth connecting rod 4333. The second end of the sixth connecting rod 4333 is rotatably connected to the second end of the first connecting rod 4311. The second ends of the first connecting rod 4311 and the second ends of the third connecting rod 4321 are both rotatably mounted on the second support rod 4331. Bent structures are formed between the fifth connecting rod 4332 and the third connecting rod 4321, and between the sixth connecting rod 4333 and the first connecting rod 4311. Specifically, the second support rod 4331 supports the first connecting rod 4311 and the third connecting rod 4321, improving the stability of the third pushing member 433. When the rotational connection point of the fifth link 4332 and the sixth link 4333 moves toward the first pusher 431 and the second pusher 432, the fifth link 4332 pushes the third link 4321 downward, and the third link 4321 pushes the second baffle 42 downward through the fourth link 4322; while the sixth link 4333 pushes the first link 4311 upward, and the first link 4311 pushes the first baffle 41 upward through the second link 4312. When the third pusher 433 moves toward the first pusher 431 and the second pusher 432, the first pusher 431 moves upward, causing the first baffle 41 to move upward, and the second pusher 432 moves downward, causing the second baffle 42 to move downward. Conversely, when the third pusher 433 moves away from the first pusher 431 and the second pusher 432, the first pusher 431 moves downward, causing the first baffle 41 to move downward, and the second pusher 432 moves upward, causing the second baffle 42 to move upward. This further enables the third pusher 433 to drive the first baffle 41 and the second baffle 42 to move closer to or further away from each other when it moves.

[0083] Preferred, such as Figure 7As shown, the fourth pushing member 434 comprises a first support plate 4341, a rotating shaft 4342, a pushing lever 4343, and a transmission lever 4344. The first end of the transmission lever 4344 is rotatably installed on the third connecting rod 4321, and the second end of the transmission lever 4344 is rotatably arranged on the first end of the first support plate 4341. The rotating shaft 4342 is installed on the first support plate 4341, and the first support plate 4341 is rotatably matched with the cabinet 1 through the rotating shaft 4342. The pushing lever 4343 is installed on the second end of the first support plate 4341, and the pushing lever 4343 is arranged in an inclined manner. The pushing lever 4343 is inclined close to the static contact 13, and the upper end surface of the pushing lever 4343 forms a guide inclined surface 4345. Specifically, when the pushing lever 4343 is pressed by the circuit breaker 2, the pushing lever 4343 drives the first support plate 4341 to rotate, and the first support plate 4341 rotates in the cabinet 1 through the rotating shaft 4342, thereby driving the transmission lever 4344 to move up and down.

[0084] Since the third connecting rod 4321 is fixed with the fifth connecting rod 4332 of the third pushing member 433, when the transmission lever 4344 moves downward, the third pushing member 433 is driven to move towards the first pushing member 431 and the second pushing member 432, so that the first baffle 41 and the second baffle 42 move away from each other. Conversely, when the transmission lever 4344 moves upward, the third pushing member 433 is driven to move away from the first pushing member 431 and the second pushing member 432, so that the first baffle 41 and the second baffle 42 move close to each other.

[0085] Embodiment three

[0086] The shielding piece 40 comprises a first baffle 41, the driving assembly 43 comprises a first pusher 431 and a fourth pusher 434, the first baffle 41 is sleeved on the first supporting rod 45 and is in sliding fit with the first supporting rod 45; the first pusher 431 is in a bent shape, the bent part of the first pusher 431 is rotatably installed on the inner wall of the cabinet body 1; the first end of the first pusher 431 is installed on the first baffle 41 and is in rotary fit with the first baffle 41; the first end of the fourth pusher 434 is rotatably connected with the second end of the first pusher 431, and the second end of the fourth pusher 434 is rotatably installed in the cabinet body 1. Specifically, when the movable locking structure 4 only uses the first baffle 41 to shield the static contact 13, the fourth pusher 434 in the cabinet body 1 is driven to rotate clockwise, so that the first end of the fourth pusher 434 moves, and the second end of the first pusher 431 is pulled to move downward when the fourth pusher 434 moves, so that the bent part of the first pusher 431 rotates, and the first end of the first pusher 431 drives the first baffle 41 to move downward. Conversely, the fourth pusher 434 rotates counterclockwise to drive the first baffle 41 to move upward, so that the first baffle 41 has a first moving position and a second moving position. It should be noted that if only the first baffle 41 is moved, the moving distance of the first baffle 41 is large, and the moving path of the fourth pusher 434 driven by the first baffle 41 is also large.

[0087] It should be noted that in the switch cabinet 100 with the movable locking structure 4, the shielding piece 40 cooperates with the driving assembly 43 to make the shielding piece 40 have a first moving position and a second moving position, and the shielding piece 40 shields the static contact 13 after moving to a preset position to prevent the risk of electric shock. In other switch cabinets 100 with the movable locking structure 4, the shielding piece 40 is moved to shield the static contact 13, which realizes the mode of preventing electric shock, and is within the protection scope of the present application.

[0088] When referring to the drawings, new features appearing are described; in order to avoid repeated reference to the drawings leading to less concise description, the features already described are not repeatedly referred to the drawings.

[0089] The purpose of the above embodiments is to exemplarily reproduce and deduce the technical solutions of the present application, and to completely describe the technical solutions, purposes and effects of the present application, so that the public can understand the disclosure of the present application more thoroughly and comprehensively, and the protection scope of the present application is not limited.

[0090] The above embodiments are not based on an exhaustive enumeration of the present application, and there can be many other unlisted embodiments. Any replacement and improvement made without violating the concept of the present application is within the protection scope of the present application.

Claims

1. An active locking structure, characterized in that, The device includes a cabinet, a shield, a first support rod, a movable rod, a limit electronic lock, and a control console. The first support rod is installed inside the cabinet. The shield is sleeved on the outside of the first support rod and slides with the first support rod. The movable rod is installed on the shield. The limit electronic lock is installed on the cabinet and has a locking tongue plate for cooperating with the moving rod. The control console is electrically connected to the limit electronic lock and is used to monitor the locking status of the limit electronic lock. The blocking member has two moving positions, and in one of the moving positions, the blocking member is restricted by the locking tongue plate.

2. A switch cabinet, characterized in that, The switch cabinet includes a circuit breaker, a stationary contact, a drive assembly, and a movable locking structure as described in claim 1. The cabinet body has a first chamber, in which the stationary contact and the circuit breaker are disposed. In a first direction, the circuit breaker slides against the inner wall of the cabinet. The circuit breaker has a moving contact for communicating with the stationary contact. The shielding component is installed on the output end of the drive assembly, which is located inside the cabinet. The two movable positions of the blocking member are arranged in the second direction. In one of the movable positions, the blocking member is close to the stationary contact and blocks the opening of the stationary contact, and the blocking member is restricted by the locking tongue plate.

3. The switch cabinet as described in claim 2, characterized in that, The switch cabinet also has a sensing component, which is installed inside the cabinet and electrically connected to the control console; the circuit breaker has a trigger element, which senses and engages with the sensing component.

4. The switch cabinet as described in claim 3, characterized in that, The sensing component includes a first Hall element and a second Hall element, and the trigger includes a first magnet and a second magnet. The first Hall element and the second Hall element are arranged in a first direction. The first magnet is inductively coupled with the first Hall element, and the second magnet is inductively coupled with the second Hall element. Both the first Hall element and the second Hall element are electrically connected to the control console.

5. The switchgear as described in claim 2, characterized in that, The driving component includes a first pusher and a fourth pusher, and the blocking component includes a first baffle, which is sleeved on the outside of the first support rod and slides in cooperation with the first support rod; The first pusher is bent, and the bent part of the first pusher is rotatably mounted on the inner wall of the cabinet; the first end of the first pusher is mounted on the first baffle and rotatably engages with the first baffle; the first end of the fourth pusher is rotatably connected to the second end of the first pusher, and the second end of the fourth pusher is rotatably mounted inside the cabinet.

6. The switch cabinet as described in claim 2, characterized in that, The shielding component includes a first baffle and a second baffle. The driving assembly includes a first support rod, a first pusher, a second pusher, and a third pusher. The first support rod is installed inside the cabinet. The first baffle and the second baffle are both sleeved on the outside of the first support rod and are slidably engaged with the first support rod. The first end of the first pusher is rotatably engaged with the first baffle, the first end of the second pusher is rotatably engaged with the second baffle, the first end of the third pusher is rotatably engaged with the second end of the first pusher, and the second end of the third pusher is rotatably engaged with the second end of the second pusher. The stationary contact is disposed between the first baffle and the second baffle; the third pusher cooperates with the circuit breaker, and the third pusher is used to drive the first pusher and the second pusher so that the first baffle and the second baffle have a moving path that moves closer to each other or further away from each other.

7. The switch cabinet as described in claim 6, characterized in that, The drive assembly further includes a fourth pusher, the first end of which is connected to the third pusher, and the second end of which is rotatably disposed within the cabinet; the fourth pusher is at least partially inclined and has a guide slope for sliding engagement with the circuit breaker; The weight of the first baffle is greater than the weight of the second baffle.

8. The switch cabinet as described in claim 7, characterized in that, The drive assembly also has a reset component, and the first baffle and the second baffle are connected by the reset component.

9. The switch cabinet as described in claim 7, characterized in that, The first pusher includes a first connecting rod, a second connecting rod, and a pin. The first end of the first connecting rod is fixed to the first end of the second connecting rod, and the first end of the first connecting rod and the first end of the second connecting rod are rotatably mounted on the inner wall of the cabinet through the pin. The second end of the second connecting rod is rotatably mounted on the side wall of the first baffle. The second pushing component includes a third link, a fourth link, and a pin. The first end of the third link is fixed to the first end of the fourth link, and the first end of the third link and the first end of the fourth link are connected by a pin on the inner wall of the cabinet. The second end of the fourth link is rotatably mounted on the side wall of the second baffle.

10. A locking method based on the movable locking structure according to claim 1, characterized in that, Includes the following steps: When the shielding component moves to one of its positions, it protects the dangerous areas of the cabinet. The control console obtains the position information of the obstruction, sends an electrical signal, and drives the limit electronic lock. The locking tongue of the limit electronic lock abuts against the moving rod, thus restricting the movement of the obstruction.

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