Emergency opening device and switch cabinet

Abstract

The utility model belongs to the technical field of electrical switch equipment, and discloses an emergency opening device and a switch cabinet. The emergency opening device comprises a mounting frame, a turnover frame, an operating rod and a transmission assembly. The mounting frame is mounted on the inner wall of the side plate of the cabinet body; one end of the roll-over stand is rotatably connected to the mounting rack, and the roll-over stand has a storage position stored in the side plate under the action of gravity and a pre-operation position for emergency opening operation; the operating rod is installed at the other end of the overturning frame and can move in the axial direction of the operating rod. The transmission assembly is arranged on the mounting frame and connected with the turnover frame, the transmission assembly can drive the turnover frame to rotate to a pre-operation position under the pushing of the cabinet door, and at the moment, the operation rod can touch a mechanical opening button of a circuit breaker in the cabinet body under the pushing of an emergency opening button on the cabinet door. The emergency opening device is automatically unfolded to be in a pre-operation position when the cabinet door is closed, and is automatically stored in the side plate of the cabinet body when the cabinet door is opened, so that the space in front of the cabinet is not occupied, and the arrangement of an observation window on the cabinet door is not influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical switchgear technical field especially relates to an emergency opening device and switch cabinet. BACKGROUND

[0002] In the switch cabinet, when the circuit breaker electrical opening and closing appears the fault and cannot reliably realize opening and closing, need through mechanical device to carry out emergency opening and closing, for this circuit breaker generally all are equipped with the emergency opening and closing button for starting mechanical opening and closing. But because the circuit breaker is located in the switch cabinet, the emergency state comes down not to open the cabinet door, therefore, generally will set up emergency opening and closing device to realize the emergency opening and closing of circuit breaker under the condition of not opening the cabinet door.

[0003] The traditional emergency opening and closing device mainly has two kinds, one is the lengthened push rod installed on the cabinet door, after the cabinet door is closed, the lengthened push rod is aimed at the opening button, and the mechanical opening can be realized by pressing the push rod, but because the push rod is generally longer, the cabinet front maintenance space is affected after opening the cabinet door, and the operator is easily hurt. The other is the folding push rod installed on the inner side of the cabinet door, under the cabinet door closed state, the folding push rod folding mechanism is unfolded to aim at the opening button, and the mechanical opening can be realized by pressing the push rod. But this emergency opening and closing device structure is relatively complex, occupies more space of the cabinet door, will affect the arrangement of the observation window on the cabinet door, and for the situation that the cabinet door width is relatively narrow and the circuit breaker is relatively far from the cabinet door, the length of the push rod is difficult to meet the requirement.

[0004] Therefore, it is urgent to propose an emergency opening device and switch cabinet to solve the above technical problems. INVENTION CONTENTS

[0005] According to one aspect of the utility model, the utility model provides an emergency opening device, unfolds in the pre-operation position automatically when the cabinet door is closed, and is stored in the side plate of the cabinet body automatically when the cabinet door is opened, neither occupies the space in front of the cabinet, nor affects the arrangement of the observation window on the cabinet door, and the operation is relatively simple.

[0006] In order to achieve this purpose, the utility model adopts the following technical scheme:

[0007] The emergency opening device is used for the switch cabinet, the switch cabinet includes a cabinet body and a cabinet door, the cabinet door is equipped with an emergency opening button, and the emergency opening device includes:

[0008] The mounting frame is mounted on the inner wall of the side plate of the cabinet body.

[0009] The turnover frame is rotatably connected to one end of the mounting frame, and the turnover frame has a storage position stored in the side plate under the action of gravity and a pre-operation position for emergency opening operation.

[0010] An operating rod is installed at the other end of the turnover frame and can move along the axial direction of the operating rod, and the turnover frame drives the operating rod to be accommodated in the side plate under the action of gravity;

[0011] A transmission assembly is arranged on the mounting frame and connected with the turnover frame, and the transmission assembly can drive the turnover frame to rotate to the pre-operation position under the pushing of the cabinet door, and when the turnover frame is in the pre-operation position, the operating rod can touch the mechanical tripping button of the circuit breaker in the cabinet under the pushing of the emergency tripping button.

[0012] Optionally, the transmission assembly comprises:

[0013] A push rod is slidingly connected to the mounting frame, and the cabinet door can contact and push the push rod during the closing process;

[0014] A transmission rotating plate is provided with a first connecting portion, a second connecting portion and a third connecting portion arranged on the two sides of the first connecting portion, the first connecting portion is rotationally connected to the mounting frame, and the second connecting portion is rotationally connected to the push rod;

[0015] A connecting rod is rotationally connected to the third connecting portion at one end and rotationally connected to the turnover frame at the other end.

[0016] Optionally, the mounting frame comprises:

[0017] A mounting plate is installed on the side plate, and the mounting plate is provided with a first rotating shaft, and the first rotating shaft is rotationally connected with the first connecting portion;

[0018] Support plates are arranged on the two sides of the mounting plate, and each support plate is provided with a first through hole, and the push rod is slidingly installed in the two first through holes;

[0019] A second rotating shaft is fixedly connected with the two support plates at both ends, and one end of the turnover frame is rotationally connected with the second rotating shaft.

[0020] Optionally, the two ends of the connecting rod are respectively provided with a first hinge hole and a second hinge hole with axes perpendicular to each other, the third connecting portion is a third rotating shaft, the third rotating shaft is connected with the first hinge hole, the turnover frame is provided with an axle connecting lug, the axle connecting lug is provided with a fourth rotating shaft, and the fourth rotating shaft is connected with the second hinge hole.

[0021] Optionally, the end of the fourth rotating shaft is detachably connected with a limiting ring, and the limiting ring and the axle connecting lug are arranged on the two sides of the other end of the connecting rod.

[0022] Optionally, the push rod is provided with a long strip-shaped hole, and the second connecting part is a fifth rotating shaft connected with the long strip-shaped hole.

[0023] Optionally, the turnover frame is provided with a weight-reducing hole.

[0024] Optionally, the turnover frame comprises a turnover plate and turnover edges arranged on both sides of the turnover plate, and the operating rod is slidably arranged through the two turnover edges.

[0025] Optionally, the other end of the turnover frame is provided with a tripping coil, and the tripping coil comprises:

[0026] an outer frame arranged at the other end of the turnover frame;

[0027] the operating rod is slidably arranged through the outer frame;

[0028] a magnet arranged in the outer frame and sleeved on the operating rod;

[0029] a coil arranged in the outer frame and sleeved on the operating rod;

[0030] an adjusting nut arranged at one end of the operating rod close to the mechanical tripping button;

[0031] a resilient member sleeved on the operating rod, one end of the resilient member abutting against one end of the operating rod close to the emergency tripping button, and the other end of the resilient member abutting against the outer wall of the outer frame.

[0032] According to another aspect of the utility model, the utility model also provides a switch cabinet, including cabinet, cabinet door, circuit breaker and the emergency tripping device of any one of the above technical schemes, one side of the cabinet door is hinged with the cabinet, the circuit breaker is arranged in the cabinet, and the emergency tripping device is arranged on the inner wall of the side plate of the cabinet.

[0033] The utility model has the advantages of:

[0034] This utility model provides an emergency tripping device, including a mounting frame, a flipping frame, an operating lever, and a transmission assembly. During the cabinet door closing process, the cabinet door contacts the transmission assembly, causing the transmission assembly to drive the flipping frame to rotate until the cabinet door is fully closed. At this point, the flipping frame rotates to the pre-operation position. When the flipping frame is in the pre-operation position, both ends of the operating lever are opposite the emergency tripping button and the mechanical tripping button, respectively. This allows pressing the emergency tripping button from outside the cabinet door when the door is closed to push the operating lever axially, thereby activating the mechanical tripping button on the circuit breaker inside the cabinet, thus tripping the circuit breaker. During the cabinet door opening process, the cabinet door separates from the transmission assembly. At this time, the flipping frame moves under gravity to a storage position on the side panel, avoiding occupying space in front of the cabinet and facilitating maintenance by operators. Switching between the storage position and the pre-operation position of the flipping frame is achieved by opening and closing the cabinet door, making operation convenient. Furthermore, installing this emergency tripping device on the cabinet side panel does not occupy cabinet door space, thus not affecting the arrangement of the observation window on the cabinet door, and the length of the operating lever is not limited by the cabinet door size.

[0035] This utility model also provides a switch cabinet, including a cabinet body, a cabinet door, a circuit breaker, and the aforementioned emergency tripping device. Because this switch cabinet employs the aforementioned emergency tripping device, the emergency tripping operation is simple, facilitating maintenance by personnel, and does not obstruct the observation window. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0037] Figure 1 This is a state diagram of the emergency tripping device with the cabinet door open, provided in this embodiment of the utility model.

[0038] Figure 2 This is a state diagram of the emergency tripping device with the cabinet door closed, provided in this embodiment of the utility model.

[0039] Figure 3 This is a structural schematic diagram of a flipping frame provided in an embodiment of the present utility model;

[0040] Figure 4 This is a schematic diagram of the structure of an operating lever provided in an embodiment of this utility model;

[0041] Figure 5 This is a schematic diagram of another flipping frame provided in an embodiment of the present utility model;

[0042] Figure 6 is a structural schematic view of the mounting rack provided by the embodiment of the utility model, and

[0043] Figure 7 is a structural schematic view of the push rod provided by the embodiment of the utility model, and

[0044] Figure 8 is a structural schematic view of the transmission rotating plate provided by the embodiment of the utility model, and

[0045] Figure 9 is a structural schematic view of the connecting rod provided by the embodiment of the utility model.

[0046] In the figure,

[0047] 10, cabinet body; 11, side plate; 20, cabinet door; 21, emergency tripping button; 30, circuit breaker; 31, mechanical tripping button;

[0048] 100, mounting rack; 110, mounting plate; 111, first rotating shaft; 120, supporting plate; 121, first through hole; 130, second rotating shaft;

[0049] 200, turnover frame; 210, turnover plate; 211, weight-reducing hole; 212, shaft connecting lug; 213, fourth rotating shaft; 214, limiting ring; 220, flange; 221, second through hole; 222, third through hole;

[0050] 300, operating rod; 310, annular clamping groove; 320, first limiting plate; 330, second limiting plate; 340, elastic reset member;

[0051] 400, transmission assembly; 410, push rod; 411, long strip-shaped hole; 420, transmission rotating plate; 421, shaft sleeve; 422, fifth rotating shaft; 423, third rotating shaft; 430, connecting rod; 431, first hinged hole; 432, second hinged hole;

[0052] 500, tripping coil; 510, outer frame; 520, magnet; 530, coil; 540, adjusting nut; 550, elastic member. DETAILED DESCRIPTION

[0053] The utility model will be further explained in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0054] In the description of the utility model, unless another definite provision and limitation, the term "link", "connection", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element's mutual action relation. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according of the specific circumstances.

[0055] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional feature between them. Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature. The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.

[0056] In the description of the embodiment, the orientation or position relationship of the terms "on", "under", "left", "right" and the like is based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0057] The embodiment provides an emergency disconnecting device, which is automatically unfolded in a pre-operation position when a cabinet door is closed, and is automatically stored in a side plate of a cabinet body when the cabinet door is opened, so that the emergency disconnecting device does not occupy space in front of the cabinet and does not affect the arrangement of an observation window on the cabinet door, and operation is relatively simple.

[0058] As shown in Figure 1 and Figure 2 , the emergency disconnecting device is used in a switch cabinet, the switch cabinet includes a cabinet body 10 and a cabinet door 20, the cabinet door 20 is provided with an emergency disconnecting button 21, and the cabinet body 10 is provided with a circuit breaker 30 with a mechanical disconnecting button 31. When the cabinet door 20 is closed, the emergency disconnecting button 21 is arranged opposite to the mechanical disconnecting button 31, and the emergency disconnecting device is used to realize the touch of the mechanical disconnecting button 31 by pressing the emergency disconnecting button 21 in the closed state of the cabinet door 20, so that the emergency disconnecting of the circuit breaker 30 is finally realized.

[0059] Specifically, continuing to refer to Figure 1 and Figure 2The emergency disconnecting device comprises a mounting frame 100, a turnover frame 200, an operating rod 300 and a transmission assembly 400. The mounting frame 100 is mounted on the inner wall of the side plate 11 of the cabinet body 10. One end of the turnover frame 200 is rotationally connected to the mounting frame 100, and the other end of the turnover frame 200 is provided with the operating rod 300. The operating rod 300 can move along its own axis. The turnover frame 200 has a storage position in the side plate 11 under the action of gravity and a pre-operation position for emergency disconnecting operation. The transmission assembly 400 is arranged on the mounting frame 100 and connected with the turnover frame 200. The transmission assembly 400 can drive the turnover frame 200 to rotate to the pre-operation position under the pushing of the cabinet door 20. When the turnover frame 200 is in the pre-operation position, the operating rod 300 can touch the mechanical disconnecting button 31 under the pushing of the emergency disconnecting button 21.

[0060] For the convenience of understanding, the working process of the emergency disconnecting device will be briefly introduced as follows:

[0061] During the closing process of the cabinet door 20, the cabinet door 20 will contact the transmission assembly 400, so that the transmission assembly 400 drives the turnover frame 200 to rotate until the cabinet door 20 is completely closed. At this time, the turnover frame 200 rotates to the pre-operation position. At this time, the two ends of the operating rod 300 are opposite to the emergency disconnecting button 21 and the mechanical disconnecting button 31 respectively, so that the pressing of the emergency disconnecting button 21 from the outside of the cabinet door 20 under the closed state of the cabinet door 20 can drive the operating rod 300 to move axially to touch the mechanical disconnecting button 31 through the operating rod 300, thereby achieving the disconnecting of the circuit breaker 30.

[0062] During the opening process of the cabinet door 20, the cabinet door 20 will be separated from the transmission assembly 400. At this time, the turnover frame 200 will drive the operating rod 300 to move to the storage position in the side plate 11 of the cabinet body 10 under the action of gravity, so as to avoid occupying the space in front of the cabinet and facilitate the maintenance of the operating personnel.

[0063] The emergency disconnecting device realizes the switching of the turnover frame 200 between the storage position and the pre-operation position through the opening and closing of the cabinet door 20, which is convenient to operate. Moreover, the emergency disconnecting device is installed on the side plate 11 of the cabinet body 10. On the one hand, it does not occupy the space of the cabinet door 20, thereby not affecting the arrangement of the observation window on the cabinet door 20, which is easy for daily inspection and observation in the power distribution room. On the other hand, the operating rod 300 is stored in the side plate 11 when the cabinet door 20 is opened, which does not occupy the operating space in front of the cabinet, avoids the possibility of misoperation, and makes the maintenance more safe and convenient. On the other hand, the length of the operating rod 300 is not limited by the size of the cabinet door 20. No matter how far the distance between the circuit breaker 30 and the cabinet door 20 is, the required function can be realized.

[0064] Optionally, the emergency disconnecting button 21 has an elastic reset function, so that it can be automatically reset after disconnecting, which is convenient for the next emergency disconnecting.

[0065] Optionally, in the pre-operation position, the axes of the emergency trip button 21, the operating lever 300, and the mechanical trip button 31 are aligned. This configuration provides better stability and reliability for emergency tripping.

[0066] Understandably, the length of the operating lever 300 is adapted to the distance between the emergency trip button 21 and the mechanical trip button 31.

[0067] Furthermore, such as Figures 1-4 As shown, in one possible embodiment, the flip frame 200 includes a flip plate 210 and flanges 220 disposed on both sides of the flip plate 210. An operating lever 300 slides through the two flanges 220. The operating lever 300 has two spaced-apart annular slots 310, which respectively engage with a first limiting plate 320 and a second limiting plate 330. The first limiting plate 320 is disposed between the two flanges 220. An elastic reset member 340 is sleeved on the operating lever 300. One end of the elastic reset member 340 abuts against the flange 220 near the mechanical trip button 31, and the other end abuts against the first limiting plate 320. The second limiting plate 330 is located outside the two flanges 220 and near the mechanical trip button 31.

[0068] When the tilting frame 200 is in the pre-operation position, pressing the emergency trip button 21 pushes the operating lever 300. At this time, the operating lever 300 moves along its own axial direction toward the mechanical trip button 31, causing the first limiting plate 320 to approach the flange 220 closer to the mechanical trip button 31 and compress the elastic reset member 340, which stores elastic potential energy. After the mechanical trip button 31 completes the tripping of the circuit breaker 30, the pressure applied to the emergency trip button 21 is removed. At this time, the elastic reset member 340 will reset the operating lever 300 under the action of elastic restoring force. At the same time, the second limiting plate 330 will press against the flange 220 near the mechanical trip button 31 to prevent the operating lever 300 from disengaging from the flange 220 due to excessive elastic force of the elastic reset member 340.

[0069] Through the combined action of the elastic reset component 340, the first limiting plate 320, and the second limiting plate 330, the elastic reset function of the operating lever 300 can be achieved, while the movement stroke of the operating lever 300 can be limited, thus improving the reliability of the operating lever 300. Furthermore, the assembly between the first limiting plate 320 and the operating lever 300, and between the second limiting plate 330 and the operating lever 300, is achieved through a snap-fit ​​mechanism, resulting in a simple structure and convenient installation and disassembly.

[0070] It is understandable that the elastic reset element 340 is optional but not limited to a spring.

[0071] Optionally, both the first limiting plate 320 and the second limiting plate 330 may be circlips.

[0072] Alternatively, the flange 220 can be formed by bending.

[0073] Optionally, two opposing second through holes 221 can be provided on the two flanges 220, and the operating rod 300 can slide through the two second through holes 221.

[0074] Furthermore, such as Figure 5 As shown, in another possible embodiment, a tripping coil 500 is provided at the other end of the tilting frame 200. The tripping coil 500 includes an outer frame 510, an operating rod 300, a magnet 520, a coil 530, an adjusting nut 540, and an elastic element 550. The outer frame 510 is located at the other end of the tilting frame 200, and the operating rod 300 slides through the outer frame 510. The magnet 520 is located inside the outer frame 510 and sleeved on the operating rod 300, and the coil 530 is located inside the outer frame 510 and sleeved on the operating rod 300. The adjusting nut 540 is located at the end of the operating rod 300 near the mechanical tripping button 31. The elastic element 550 is sleeved on the operating rod 300, with one end of the elastic element 550 abutting against the end of the operating rod 300 near the emergency tripping button 21, and the other end abutting against the outer wall of the outer frame 510.

[0075] By setting the trip coil 500, this emergency tripping device has two operating modes:

[0076] Mode 1: By pressing the emergency trip button 21 on the cabinet door 20, the operating lever 300 is pushed to trigger the mechanical trip button 31 on the circuit breaker 30, realizing manual emergency tripping. After the external force is removed, the operating lever 300 automatically resets under the action of the elastic element 550.

[0077] Mode 2: When coil 530 is energized, it generates a magnetic field, which is transmitted to operating lever 300 through magnet 520. The operating lever 300, under the influence of the magnetic field, will move along its axial direction towards mechanical trip button 31, ultimately triggering mechanical trip button 31 to achieve remote emergency tripping. When coil 530 is de-energized, operating lever 300 will automatically reset under the action of elastic element 550.

[0078] By setting the trip coil 500, not only can manual emergency tripping be achieved outside the cabinet, but also remote emergency tripping can be achieved through a remote electric operating system independent of the switch cabinet control system, which is more intelligent.

[0079] Optionally, the elastic element is a spring.

[0080] Optionally, see [link to relevant documentation] Figure 3 and Figure 5The overturning frame 200 is provided with a weight-reducing hole 211. By arranging the weight-reducing hole 211, the weight of the overturning frame 200 can be reduced, so that the transmission assembly 400 can more easily drive the overturning frame 200 to rotate, and the reliability of the work of the transmission assembly 400 driving the overturning frame 200 to rotate is improved.

[0081] It can be understood that a plurality of weight-reducing holes 211 can be arranged according to actual needs.

[0082] Further, continuing to refer to Figure 1 and Figure 2 In the embodiment, the transmission assembly 400 includes a push rod 410, a transmission rotating plate 420, and a connecting rod 430. The push rod 410 is slidingly connected to the mounting frame 100, and the cabinet door 20 can contact and push the push rod 410 to move during the closing process. The transmission rotating plate 420 is provided with a first connecting portion, and a second connecting portion and a third connecting portion arranged on the two sides of the first connecting portion. The first connecting portion is rotationally connected to the mounting frame 100, the second connecting portion is rotationally connected to the push rod 410, and the third connecting portion is rotationally connected to one end of the connecting rod 430. The other end of the connecting rod 430 is rotationally connected to the overturning frame 200.

[0083] The working principle of the transmission assembly 400 is as follows:

[0084] During the closing process, the cabinet door 20 touches the push rod 410 and pushes the push rod 410 to slide into the cabinet 10. The sliding of the push rod 410 moves through the second connecting portion on the transmission rotating plate 420, so that the transmission rotating plate 420 rotates by a certain angle around the first connecting portion, thereby causing the third connecting portion to drive the connecting rod 430 to move. The movement of the connecting rod 430 pulls the overturning frame 200 to rotate upward, and after the cabinet door 20 is closed in place, the overturning frame 200 rotates to the pre-operation position.

[0085] The transmission mechanism has a simple structure and good smoothness and reliability of transmission.

[0086] Further, as shown in Figure 1 , Figure 2 and Figure 6 The mounting frame 100 includes a mounting plate 110, a support plate 120, and a second rotating shaft 130. The mounting plate 110 is mounted to the side plate 11, and the mounting plate 110 is provided with a first rotating shaft 111 rotationally connected to the first connecting portion. The support plate 120 is arranged on both sides of the mounting plate 110, and each support plate 120 is provided with a first through hole 121. The push rod 410 is slidingly installed in the two first through holes 121. The second rotating shaft 130 is fixedly connected to the two support plates 120 at both ends, and one end of the overturning frame 200 is rotationally connected to the second rotating shaft 130. The mounting frame 100 has a simple structure and is easy to process.

[0087] Optionally, as shown in Figure 6 and Figure 8 , the first connecting part can be a shaft sleeve 421, which is rotationally connected with the first rotating shaft 111. The structure is simple, the reliability of the rotational connection is better, and the shaft sleeve 421 has high strength and is not easy to be damaged.

[0088] Optionally, continuing to refer to Figure 3 and Figure 6 , in the embodiment, the two flanges 220 of the turnover frame 200 are provided with opposite third through holes 222, and the second rotating shaft 130 is rotationally connected with the two third through holes 222 to realize the rotational connection of the turnover frame 200 and the mounting frame 100. The structure is simple, and the rotational smoothness is better.

[0089] Further, as shown in Figure 1 , Figure 7 and Figure 8 , the push rod 410 is provided with an elongated hole 411, and the second connecting part is a fifth rotating shaft 422 connected with the elongated hole 411. The rotational connection between the push rod 410 and the transmission rotating plate 420 is realized through the elongated hole 411 and the fifth rotating shaft 422. The structure is simple, and the installation and disassembly are convenient.

[0090] Further, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 8 and Figure 9 , the two ends of the connecting rod 430 are respectively provided with a first hinge hole 431 and a second hinge hole 432 with axes perpendicular to each other. The third connecting part is a third rotating shaft 423 connected with the first hinge hole 431. The turnover frame 200 is provided with a shaft connecting lug 212, and the shaft connecting lug 212 is provided with a fourth rotating shaft 213 connected with the second hinge hole 432. The rotational connection between the connecting rod 430 and the transmission rotating plate 420 is realized through the first hinge hole 431 and the third rotating shaft 423, and the rotational connection between the connecting rod 430 and the turnover frame 200 is realized through the second hinge hole 432 and the fourth rotating shaft 213. The structures are relatively simple, the rotational smoothness is ensured, and the installation and disassembly are convenient.

[0091] Optionally, continuing to refer to Figure 3 , the end of the fourth rotating shaft 213 is detachably connected with a limiting ring 214, and the limiting ring 214 and the shaft connecting lug 212 are arranged on the two sides of the other end of the connecting rod 430. By arranging the limiting ring 214, the limiting ring 214 and the shaft connecting lug 212 can limit the axial movement of the connecting rod 430 on the fourth rotating shaft 213, so that the connecting rod 430 is prevented from being separated from the fourth rotating shaft 213, and the reliability of the connection between the connecting rod 430 and the turnover frame 200 is improved.

[0092] The embodiment also provides a switch cabinet, which comprises a cabinet body 10, a cabinet door 20, a circuit breaker 30 and the emergency tripping device.

[0093] The switch cabinet has the emergency tripping device, so that the emergency tripping operation is simple, the staff can easily perform maintenance, and the observation window is not blocked.

[0094] Optionally, the diameter of the mechanical tripping button 31 can be set to be small, so that the mechanical tripping button 31 cannot be pressed manually to perform tripping operation when the cabinet door 20 is opened, and the manual tripping can only be completed by pressing the emergency tripping button 21 when the cabinet door 20 is closed, so as to realize the interlocking function of mechanical operation and closing of the cabinet door 20.

[0095] Obviously, the above embodiment of the utility model is only for clear illustration of the utility model, and is not a limitation on the implementation mode of the utility model. For ordinary skilled persons in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the utility model. Here, it is unnecessary and impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. Emergency opening device for a switchgear cabinet, said switchgear cabinet comprising a cabinet body (10) and a cabinet door (20), said cabinet door (20) being provided with an emergency opening button (21), characterized in that The emergency opening device comprises: a mounting frame (100) mounted on the inner wall of the side plate (11) of the cabinet body (10); a turnover frame (200) rotatably connected to one end of the mounting frame (100), the turnover frame (200) having a storage position stored in the side plate (11) under the action of gravity and a pre-operation position for emergency opening operation; an operating rod (300) mounted on the other end of the turnover frame (200) and movable along the axial direction of the operating rod (300); a transmission assembly (400) arranged on the mounting frame (100) and connected to the turnover frame (200), the transmission assembly (400) being capable of driving the turnover frame (200) to rotate to the pre-operation position under the pushing of the cabinet door (20), and the operating rod (300) being capable of touching the mechanical opening button (31) of the circuit breaker (30) in the cabinet body (10) under the pushing of the emergency opening button (21) when the turnover frame (200) is in the pre-operation position.

2. The emergency opening device according to claim 1, characterized in that The transmission assembly (400) comprises: a push rod (410) slidably connected to the mounting frame (100), the cabinet door (20) being capable of contacting and pushing the push rod (410) to move during the closing process; a transmission rotating plate (420) provided with a first connecting portion and a second connecting portion and a third connecting portion separately arranged on the two sides of the first connecting portion, the first connecting portion being rotatably connected to the mounting frame (100), and the second connecting portion being rotatably connected to the push rod (410); a connecting rod (430) having one end rotatably connected to the third connecting portion and the other end rotatably connected to the turnover frame (200).

3. The emergency opening device according to claim 2, characterized in that The mounting frame (100) comprises: a mounting plate (110) mounted on the side plate (11), the mounting plate (110) being provided with a first rotating shaft (111), the first rotating shaft (111) being rotatably connected to the first connecting portion; a support plate (120) arranged on the two sides of the mounting plate (110), each of the support plates (120) being provided with a first through hole (121), and the push rod (410) being slidably mounted in the two first through holes (121); a second rotating shaft (130) having two ends fixedly connected to the two support plates (120), one end of the turnover frame (200) being rotatably connected to the second rotating shaft (130).

4. The emergency opening device of claim 2, wherein The two ends of the connecting rod (430) are respectively provided with a first hinge hole (431) and a second hinge hole (432) having axes perpendicular to each other; the third connecting portion is a third rotating shaft (423), the third rotating shaft (423) being connected to the first hinge hole (431); the turnover frame (200) is provided with an axle connecting lug (212), the axle connecting lug (212) being provided with a fourth rotating shaft (213), and the fourth rotating shaft (213) being connected to the second hinge hole (432).

5. The emergency opening device of claim 4, wherein The end of the fourth rotating shaft (213) is detachably connected with a limiting ring (214), and the limiting ring (214) and the shaft connecting lug (212) are arranged on the two sides of the other end of the connecting rod (430).

6. The emergency opening device of claim 2, wherein The push rod (410) is provided with an elongated hole (411), the second connecting part is a fifth rotating shaft (422), and the fifth rotating shaft (422) is connected with the elongated hole (411).

7. The emergency opening device of claim 1, wherein The turnover frame (200) is provided with a weight-reducing hole (211).

8. The emergency opening device according to any one of claims 1 to 7, characterized in that The turnover frame (200) comprises a turnover plate (210) and turnover edges (220) arranged on the two sides of the turnover plate (210), and the operating rod (300) is slidably arranged through the two turnover edges (220); the operating rod (300) is provided with two annular clamping grooves (310) arranged at intervals, and the two annular clamping grooves (310) are clamped with a first limiting plate (320) and a second limiting plate (330) respectively, the first limiting plate (320) is arranged between the two turnover edges (220), an elastic reset member (340) is sleeved on the operating rod (300), one end of the elastic reset member (340) abuts against the turnover edge (220) close to the mechanical tripping button (31), and the other end abuts against the first limiting plate (320); and the second limiting plate (330) is located outside the two turnover edges (220) and close to the mechanical tripping button (31).

9. The emergency opening device according to any one of claims 1 to 7, characterized in that The other end of the turnover frame (200) is provided with a tripping coil (500), and the tripping coil (500) comprises: an outer frame (510) arranged at the other end of the turnover frame (200); the operating rod (300) slidably arranged through the outer frame (510); a magnet (520) arranged in the outer frame (510) and sleeved on the operating rod (300); a coil (530) arranged in the outer frame (510) and sleeved on the operating rod (300); an adjusting nut (540) arranged at one end of the operating rod (300) close to the mechanical tripping button (31); and an elastic member (550) sleeved on the operating rod (300), one end of the elastic member (550) abuts against one end of the operating rod (300) close to the emergency tripping button (21), and the other end abuts against the outer wall of the outer frame (510).

10. Switchgear cabinet, characterized in that The emergency tripping device comprises a cabinet body (10), a cabinet door (20), a circuit breaker (30) and the emergency tripping device according to any one of claims 1-9, one side of the cabinet door (20) is hinged to the cabinet body (10), the circuit breaker (30) is arranged in the cabinet body (10), and the emergency tripping device is arranged on the inner wall of the side plate (11) of the cabinet body (10).

Images