An explosion-proof cabinet

Abstract

The application discloses a flame-proof cabinet, which comprises a flame-proof cabinet body, a door body, a disconnecting switch, a handle screwing assembly and a locking device. The flame-proof cabinet body is internally provided with a containing cavity. The door body is connected to the flame-proof cabinet body and can be opened or closed relative to the flame-proof cabinet body. The disconnecting switch is arranged in the containing cavity and is provided with an operating rod for operating the disconnecting switch. The handle screwing assembly is assembled on the door body and is used for cooperating with the operating rod. The handle screwing assembly can be separated from the operating rod when the door body is opened and can be connected to the operating rod to drive the operating rod to move when the door body is closed. The locking device is used for locking and fixing the handle screwing assembly at a first position corresponding to the closing of the disconnecting switch and the handle screwing assembly at a second position corresponding to the opening of the disconnecting switch. The application solves the problems of difficult live operation and inability to realize safe locking of the existing flame-proof cabinet.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of power distribution cabinet equipment, and particularly relates to an improved explosion-proof cabinet structure with an explosion-proof function. BACKGROUND

[0002] The explosion-proof power distribution cabinet is also called an explosion-proof cabinet. The explosion-proof cabinet needs to be frequently powered off and powered on during use. In order to ensure its safety, the switch handle of the disconnector needs to be led out and subjected to certain safety protection.

[0003] The existing explosion-proof power distribution cabinet does not have any locking structure during use. In the use process, since there is no locking, the situation of accidental touch by other workers may occur. Some explosion-proof cabinets are provided with a simple locking handle which is built in the explosion-proof cabinet. When the disconnector is rotated to the position of the locking handle, it is resisted at this position to achieve locking. The locking and fixing of the disconnector are not firm, and effective misuse protection cannot be achieved. SUMMARY

[0004] The present application is directed to the problem of the locking of the switch handle of the existing explosion-proof cabinet which cannot achieve effective misuse protection. The present application proposes a new type of explosion-proof cabinet which can operate the disconnector in the explosion-proof cabinet through the handle screwing assembly on the outside, and after the operation is completed, the handle screwing assembly corresponding to the position of the closing and opening of the disconnector can be locked and fixed, ensuring the locking and fixing of the disconnector, thereby solving the problem of misuse.

[0005] To achieve the above-mentioned application purposes, the present application adopts the following technical solutions:

[0006] An explosion-proof cabinet comprises:

[0007] An explosion-proof cabinet body, an accommodating cavity is formed in the explosion-proof cabinet body;

[0008] A door body connected to the explosion-proof cabinet body and capable of being opened or closed relative to the explosion-proof cabinet body;

[0009] A disconnector arranged in the accommodating cavity, the disconnector is provided with an operating rod for operating the disconnector;

[0010] A handle screwing assembly assembled on the door body and used to cooperate with the operating rod, the handle screwing assembly can be separated from the operating rod when the door body is opened, and connected to the operating rod to drive the operating rod to act when the door body is closed and the operating rod is rotated;

[0011] A locking device used to lock and fix the handle screwing assembly corresponding to the first position of the disconnector when the disconnector is closed and the handle screwing assembly corresponding to the second position of the disconnector when the disconnector is opened.

[0012] In some embodiments of the present application, the handle screwing assembly comprises:

[0013] a handle knob member;

[0014] a knob shaft partially penetrating the door body and fixedly connected with the handle knob member, the knob shaft and the operating rod being insertedly fitted.

[0015] In some embodiments of the present application, a slot is provided on the knob shaft, the operating rod being insertedly fitted in the slot, the slot being polygonal in cross section, the cross sectional shape of the operating rod and the inserted fitting shape being adapted.

[0016] In some embodiments of the present application, a U-shaped groove is provided on the outer side of the knob shaft, the operating rod being insertedly fitted in the U-shaped groove.

[0017] In some embodiments of the present application, the handle screwing assembly further comprises a fixing member weldedly fixed on the door body.

[0018] a shaft sleeve insertedly fitted in the door body, the shaft sleeve being provided with an inserted fitting cavity for the knob shaft.

[0019] the handle knob member comprising a body portion penetrating the fixing member;

[0020] a rotating rod portion connected to one side of the body portion.

[0021] In some embodiments of the present application, the locking device comprises:

[0022] a locking fixing member assembled on the door body;

[0023] a locking seat assembled in the locking fixing member;

[0024] a resilient locking assembly provided in the locking seat, the resilient locking assembly being capable of being locked in the locking seat after being pressed and rotated and being automatically popped out of the locking seat after being reversely rotated to limit the rotating rod portion.

[0025] In some embodiments of the present application, the resilient locking assembly comprises:

[0026] a resilient member assembled in the locking seat, one end of the resilient member being fixedly connected with the bottom of the locking seat;

[0027] a blocking member provided above the resilient member, the bottom of the blocking member being fixedly connected with the other end of the resilient member, the blocking member being formed with a blocking limiting portion;

[0028] a guiding limiting structure provided between the locking seat and the blocking member, the guiding limiting structure being used to guide and limit the sliding of the blocking member.

[0029] In some embodiments of the present application, the guide limiting structure comprises a guide limiting channel arranged on the inner wall of the locking seat and a sliding protrusion arranged on the blocking member, the sliding protrusion is located in the guide limiting channel, the guide limiting channel comprises a guide channel and a limiting channel, the guide channel is arranged on the side wall of the locking seat and extends along the axial direction of the locking seat, the limiting channel is located at the bottom of the guide channel and communicates with the guide channel, and the limiting channel extends along the circumferential direction of the locking seat.

[0030] In some embodiments of the present application, the locking fixing member is a locking slide, the locking slide is located on the rotation contour line formed by the rotation of the end portion of the rotating rod, and the locking slide comprises a limiting section located in the middle and sliding sections located at both ends, the slide width of the limiting section is less than or equal to the outer diameter of the locking seat, and the slide width of the sliding section is greater than the outer diameter of the locking seat.

[0031] In some embodiments of the present application, the blocking member is further provided with a locking hole penetrating through the blocking member, a bolt is arranged in the locking hole, and a padlock is arranged on the bolt.

[0032] Compared with the prior art, the present application has the following advantages and positive effects:

[0033] In the present application, the handle screwing assembly is arranged outside the door body, and when the isolating switch inside the explosion-proof cabinet is operated, the handle screwing assembly outside the door body is rotated to operate the isolating switch inside, and the safety of operation and use is ensured by the external operation mode.

[0034] In addition, a locking device is separately arranged in the present application, which cooperates with the handle screwing assembly to lock and fix the handle screwing assembly at the first position of the isolating switch in the closed state and the handle screwing assembly at the second position corresponding to the isolating switch in the open state, so that the isolating switch at the corresponding position in the closed and open states can be locked and fixed, the locking state is ensured, the misoperation is avoided, and the misoperation protection is realized.

[0035] Other characteristics and advantages of the present application will become more apparent after reading the specific embodiments of the present application in combination with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0037] Figure 1 It is a three-dimensional structure diagram of the explosion-proof cabinet in the embodiment of the present application.

[0038] Figure 2 It is a structure schematic diagram of the handle screwing assembly of the explosion-proof cabinet in the embodiment of the present application.

[0039] Figure 3 It is a partial enlarged view of A in Figure 2

[0040] Figure 4 It is a structure schematic diagram of the handle screwing assembly and the locking device cooperation of the explosion-proof cabinet in the embodiment of the present application.

[0041] Figure 5 It is a structure schematic diagram of the locking seat of the explosion-proof cabinet in the embodiment of the present application.

[0042] Figure 6 It is a B-B sectional view of Figure 5

[0043] Figure 7 It is a structure schematic diagram of the blocking piece of the explosion-proof cabinet in the embodiment of the present application.

[0044] Among them, the explosion-proof cabinet body-100;

[0045] The door body-200; the disconnector-300; the operating rod-310;

[0046] The handle screwing assembly-400; the handle knob piece-410; the body part-411; the rotating rod part-412;

[0047] The knob shaft-420; the insertion slot-421; the fixed part-430; the shaft sleeve-440;

[0048] The locking device-500; the locking fixed piece-510; the limiting section-511; the sliding section-512;

[0049] The locking seat-520; the elastic locking assembly-530; the elastic piece-531; the blocking piece-532; the locking hole-5321;

[0050] The guide limiting channel-610; the sliding protrusion-620;

[0051] The guide channel-611; the limiting channel-612; the bolt-700; the padlock-800. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the present application will be further described in detail below with the aid of the drawings and examples.

[0053] ​​It should be noted that in the description of the present application, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the direction or positional relationship of the terms based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0054] The present application proposes an embodiment of an explosion-proof cabinet, comprising: an explosion-proof cabinet body 100, an accommodation cavity is formed inside the explosion-proof cabinet body 100, and corresponding electrical elements are installed inside the explosion-proof cabinet body 100 to realize the use requirements of the explosion-proof cabinet. The explosion-proof cabinet body is composed of an explosion-proof shell.

[0055] The explosion-proof shell is used to put parts that may generate sparks, arcs and dangerous temperatures inside it, and the explosion-proof cabinet shell separates the internal space of the device from the surrounding environment. The explosion-proof shell has gaps, and due to the breathing effect and gas permeation effect of electrical equipment, there may be explosive gas mixtures inside, which can withstand the explosion pressure generated when it explodes without damage, and the explosion-proof shell gap can cool the flame, reduce the flame propagation speed or terminate the acceleration chain, so that the flame or dangerous flame products cannot cross the explosion-proof gap to ignite the external explosive environment, thereby achieving the purpose of explosion-proof.

[0056] The electrical elements in the partition cabinet body include: disconnecting switches 300, relays, and electric reactors.

[0057] In order to reduce the occupied space of the entire explosion-proof cabinet body 100, when setting, the disconnecting switches 300, relays and electric reactors can be arranged from top to bottom along the height direction of the explosion-proof cabinet body.

[0058] In order to realize connection and fixation, a reinforcing block and a support plate can also be correspondingly arranged on the explosion-proof cabinet body 100, the support plate is used to bear the electrical elements, and the support plate can be detachably connected with the reinforcing block, such as being connected and fixed by bolts, etc., which is convenient for disassembly and installation, so as to increase the installation space for installing all electrical elements.

[0059] The door body 200 is connected to the explosion-proof cabinet body 100 and can be opened or closed relative to the explosion-proof cabinet body 100.

[0060] In some embodiments of the present application, the door body 200 is rotatably connected to the explosion-proof cabinet, which can be rotatably connected to the explosion-proof cabinet through a hinge or the like, and when overhauling, the user can open the door body 200 by rotating to overhaul or install the internal electrical elements.

[0061] The isolating switch 300 is arranged in the accommodating cavity, and the isolating switch 300 is provided with an operating rod 310 for operating the isolating switch 300. The operating rod 310 can be connected with the isolating switch 300, and the operating rod 310 can be a T-shaped extension column fixed in a rotating port of the isolating switch 300, so that the isolating switch 300 can be controlled.

[0062] When the operating rod 310 is subjected to a force, the isolating switch 300 can be operated correspondingly.

[0063] The handle screw assembly 400 is arranged on the door body 200 and connected with the operating rod 310. The handle screw assembly 400 can be separated from the operating rod 310 when the door body 200 is opened, and the handle screw assembly 400 can be connected with the operating rod 310 when the door body 200 is closed, so that the operating rod 310 can be driven to rotate when the handle screw assembly 400 rotates.

[0064] The locking device 500 is used to lock and fix the handle screw assembly 400 at a first position corresponding to the closing of the isolating switch 300 and the handle screw assembly 400 at a second position corresponding to the opening of the isolating switch 300.

[0065] In use, the handle screw assembly 400 is rotated to drive the operating rod 310 connected with the handle screw assembly 400 to rotate, so that the isolating switch 300 can be operated.

[0066] Since the explosion-proof cabinet is prohibited from opening the door body 200 during use, and dangerous accidents such as explosion may occur if the door body 200 is opened, the handle screw assembly 400 arranged outside the door body 200 can drive the operating rod 310 to operate the isolating switch 300, so that the related electrical components in the explosion-proof cabinet can be operated under the premise of ensuring the safety of the isolation cabinet, and the normal electrical operation requirements can be ensured.

[0067] In addition, only the handle screw assembly 400 needs to be rotated during operation, and the operation is more simple and convenient.

[0068] In addition, the handle screw assembly 400 and the operating rod 310 in the embodiment can be connected when the door body 200 is closed and can be separated when the door body 200 is opened, so that the normal opening of the door body 200 when the door needs to be opened is ensured, and the linkage operation between the two after the door body 200 is closed is also ensured.

[0069] In addition, the locking device 500 is arranged correspondingly in the embodiment, and the locking device 500 can be connected with the handle screw assembly 400 to lock and fix the handle screw assembly 400 at different positions, so that the locking and fixing of the isolating switch 300 at different positions can be ensured.

[0070] As the handle screw assembly 400 in the embodiment is used, the operating rod 310 can drive the isolating switch 300 to change between the open and closed states. With continuous rotation of the handle screw assembly 400, the operating rod 310 drives the isolating switch 300 to be in the open state. At this time, to prevent external personnel from misoperation, the locking device 500 can be used to lock the isolating switch 300.

[0071] Similarly, the handle screw assembly 400 can also drive the operating rod 310 to operate the isolating switch 300 to be in the closed state. At this time, the closed state of the isolating switch 300 also needs to be locked, and the locking device 500 can also be used to lock the isolating switch 300 in the closed state.

[0072] Through the locking device 500, the handle screw assembly 400 corresponding to the isolating switch 300 in different states can be locked, thereby achieving locking of the isolating switch 300 and ensuring safety during use.

[0073] In some embodiments of the present application, the handle screw assembly 400 comprises:

[0074] a handle knob 410;

[0075] a knob shaft 420, the knob shaft 420 partially penetrates the door body 200 and is fixedly connected with the handle knob 410, and the knob shaft 420 and the operating rod 310 are inserted and fitted.

[0076] The handle knob 410 and the knob shaft 420 can be directly welded and fixed, or a mounting groove can be formed on the handle knob 410, and the knob shaft 420 can be inserted and fixed in the mounting groove. As long as the connection between the handle knob 410 and the knob shaft 420 can be achieved, specific limitations are not made here.

[0077] The inserted and fitted connection between the knob shaft 420 and the operating rod 310 can ensure that the two are separated after the door body 200 is opened and are automatically connected after the door body 200 is closed.

[0078] In some embodiments of the present application, the knob shaft 420 is provided with a slot 421, the operating rod 310 is inserted in the slot 421, the slot 421 is polygonal in cross section, and the cross-sectional shape of the operating rod 310 is adapted to the shape of the slot.

[0079] The polygon can be a triangle, a quadrilateral, a pentagon, etc. As long as the knob shaft 420 and the operating rod 310 can be inserted and fitted, and the power can be transmitted to the operating rod 310 to make it rotate when the knob shaft 420 rotates, specific limitations are not made here.

[0080] In some embodiments of the present application, the knob shaft 420 is provided with a U-shaped groove on the outer side, and the operating rod 310 is inserted into the U-shaped groove. When the knob shaft 420 rotates, the side wall of the operating rod 310 is brought into contact with the side wall of the U-shaped groove and is driven to rotate by the knob shaft 420.

[0081] In some embodiments of the present application, the handle screwing assembly 400 further comprises a fixing component 430 which is welded and fixed on the door body 200. The fixing component 430 is a fixing disc or a fixing plate which is directly formed integrally with the door body 200.

[0082] The shaft sleeve 440 is inserted into the door body 200, and an insertion cavity for inserting the knob shaft 420 is arranged in the shaft sleeve 440. An installation hole is formed in the door body 200 along the thickness direction of the door body 200, and the shaft sleeve 440 is installed in the installation hole.

[0083] The knob shaft 420 is inserted into the shaft sleeve 440, and the shaft sleeve 440 supports and protects the knob shaft 420.

[0084] The handle knob 410 comprises a body part 411 which passes through the fixing component 430.

[0085] A rotating rod part 412 is connected to one side of the body part 411.

[0086] The body part 411 is a body shaft, and the rotating rod part 412 is a rotating rod which is arranged perpendicularly to the side wall of the body shaft. The body shaft passes through the fixing component 430.

[0087] In use, a force is applied to the rotating rod, the rotating rod drives the body shaft and the knob shaft 420 connected to the body shaft to rotate relative to the shaft sleeve 440, and the knob shaft 420 drives the operating rod 310 connected thereto to rotate, so as to operate the disconnecting switch 300.

[0088] In some embodiments of the present application, the locking device 500 comprises:

[0089] The locking fixing component 510 is assembled on the door body 200, and the locking fixing component 510 is a locking slide which is arc-shaped.

[0090] The locking slide comprises a sliding bearing bottom wall and slide side walls arranged on both sides of the slide bearing bottom wall. The distance between the two slide side walls corresponds to the width of the locking slide.

[0091] When assembled, the locking slide can be directly welded and fixed on the door body 200.

[0092] In some embodiments of the present application, the locking slide is located on the rotation contour line formed by the rotation of the end of the rotating rod portion 412, and is the same as the rotation contour line of the end of the rotating rod portion 412.

[0093] The locking slide includes a middle limiting section 511 and two end sliding sections 512, and the slide width of the limiting section 511 is smaller than the slide width of the sliding section 512.

[0094] The length of the limiting section 511 is much greater than the length of the sliding section 512.

[0095] The locking seat 520 is assembled in the locking fixing member 510, and the locking seat 520 is specifically clamped in the locking fixing member 510. The locking seat 520 is a locking cylinder, and the top of the locking seat 520 has an opening.

[0096] The elastic locking assembly 530 is arranged in the locking seat 520, and can be locked in the locking seat 520 after being pressed and rotated, and automatically pops out of the locking seat 520 after being reversely rotated to limit the rotating rod portion 412.

[0097] In some embodiments of the present application, the elastic locking assembly 530 includes:

[0098] The elastic member 531 is assembled in the locking seat 520 and is fixedly connected to one end of the bottom of the locking seat 520.

[0099] The elastic member 531 is a spring, which is vertically arranged in the locking seat 520, and the bottom end of the elastic member 531 is fixedly welded to the bottom of the locking seat 520.

[0100] The blocking member 532 is arranged above the elastic member 531 and is fixedly connected to the other end of the bottom of the elastic member 531.

[0101] The blocking member 532 is a blocking column, and the bottom of the blocking member 532 is fixedly welded to the top of the elastic member 531.

[0102] The guide limiting structure is arranged between the locking seat 520 and the blocking member 532 to guide and limit the sliding of the blocking member 532.

[0103] In some embodiments of the present application, the guide limiting structure includes a guide limiting channel 610 arranged on the inner wall of the locking seat 520 and a sliding protrusion 620 arranged on the blocking member 532.

[0104] When the sliding protrusion 620 is arranged, the sliding protrusion 620 is arranged at one side of the blocking member 532.

[0105] The sliding protrusion 620 is located in the guide limiting channel 610, and the sliding protrusion 620 can slide along the guide limiting channel 610.

[0106] Specifically, the guide limiting channel 610 comprises a guide channel 611 and a limiting channel 612. The guide channel 611 is arranged on the side wall of the locking seat 520 and extends in the axial direction of the locking seat 520. The limiting channel 612 is arranged at the bottom of the guide channel 611 and communicates with the guide channel 611. The limiting channel 612 extends in the circumferential direction of the locking seat 520.

[0107] The guide channel 611 corresponds to a guide groove, and the limiting channel 612 corresponds to a limiting groove. The guide groove is arranged from top to bottom in the height direction of the locking seat 520.

[0108] When the handle knob 410 does not need to be locked and limited by the elastic locking assembly 530, the blocking piece 532 can be pressed down. At the same time, the blocking piece 532 presses down the elastic piece 531, and the elastic piece 531 accumulates energy. In the process of pressing down the blocking piece 532, the sliding protrusion 620 slides along the vertically arranged guide channel 611. After being pressed down to the position, the blocking piece 532 is rotated, so that the sliding protrusion 620 slides into the limiting channel 612 and is limited. At this time, the blocking piece 532 is not limited to the handle knob 410 due to the pressing and limiting. At this time, the handle knob 410 can be rotated to drive the operating rod 310 to rotate and operate the disconnecting switch 300.

[0109] When the handle knob 410 needs to be locked, the blocking piece 532 can be reversely rotated, so that the sliding protrusion 620 is separated from the limiting channel 612. At this time, the blocking piece 532 can be automatically popped up under the reverse action of the elastic piece 531. The popped-up blocking piece 532 can be blocked on the side surface of the rotating rod part 412 to limit and lock the handle knob assembly 400, so as to lock and fix the disconnecting switch 300.

[0110] Specifically, in order to lock and fix the handle knob assembly 400 corresponding to the two positions of the closing and opening of the disconnecting switch 300 in the embodiment, two elastic locking assemblies 530 and two locking seats 520 cooperating with the elastic assemblies are arranged in the embodiment. The two locking seats 520 are respectively arranged at the two end positions of the limiting section 511 of the locking slide.

[0111] In some embodiments of the present application, the slide width of the limiting section 511 is less than or equal to the outer diameter of the locking seat 520, and the slide width of the sliding section 512 is greater than the outer diameter of the locking seat 520.

[0112] In this way, the locking seat 520 can be clamped and fixed on the limiting section 511.

[0113] Meanwhile, when the elastic piece 531 of the elastic locking assembly 530 in the locking seat 520 is damaged, the locking seat 520 can be slid from the limiting section 511 to the sliding section 512 at the positions of the two ends of the limiting section 511, and since the sliding channel of the sliding section 512 is wider than the locking seat 520, the locking seat 520 can be taken out for replacement of the elastic piece 531 inside.

[0114] In some embodiments of the present application, the blocking piece 532 is further provided with a locking hole 5321 penetrating through the blocking piece 532, and a latch 700 is arranged in the locking hole 5321, and a padlock 800 is arranged on the latch 700.

[0115] By arranging the padlock 800, the safety of the explosion-proof cabinet during use can be further enhanced, and when the padlock 800 is arranged on the blocking piece, other workers can know that the explosion-proof cabinet is in a locked state and cannot be operated, thus effectively avoiding the occurrence of misoperation.

[0116] When the user does not want to be operated by people who are not familiar with the working condition or for a long time, the user can pass the latch 700 out of the hole in the blocking piece and lock it with the padlock 800, so as to ensure the safety.

[0117] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent ones; and these modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions claimed by the present application.

Claims

1. An explosion-proof cabinet, comprising: An explosion-proof cabinet, wherein an accommodating cavity is formed inside the explosion-proof cabinet; The door is connected to the explosion-proof cabinet and can be opened or closed relative to the explosion-proof cabinet. Its features are, It also includes: A disconnect switch is disposed within the accommodating cavity, and the disconnect switch is equipped with an operating lever for operating it. A handle turning assembly is mounted on the door body to cooperate with the operating lever. The handle turning assembly can be separated from the operating lever when the door body is open, and connected to the operating lever when the door body is closed so as to drive the operating lever to move when it is rotated. The handle screwing assembly includes: A handle knob, including a rotating lever; A knob shaft passes through the door body and is fixedly connected to the handle knob. The knob shaft and the operating lever are fitted together by an insert. Locking device for locking and fixing the handle turning assembly at the first position corresponding to the closing of the disconnecting switch and the handle turning assembly at the second position corresponding to the opening of the disconnecting switch; The locking device includes: Locking fasteners are assembled onto the door body; Locking seat, assembled inside the locking fastener; An elastic locking assembly is provided inside the locking seat, which can lock itself inside the locking seat after being rotated under pressure, and automatically pop out of the locking seat after being rotated in the opposite direction to limit the rotation rod portion; The elastic locking assembly includes: An elastic element is assembled inside the locking seat, with one end fixedly connected to the bottom of the locking seat; A retaining element is disposed above the elastic element, and its bottom is fixedly connected to the other end of the elastic element; A guide and limiting structure is provided between the locking seat and the stop member to guide and limit the sliding of the stop member; The guide limiting structure includes a guide limiting channel disposed on the inner wall of the locking seat and a sliding protrusion disposed on the stop member. The sliding protrusion is located within the guide limiting channel. The guide limiting channel includes a guide channel and a limiting channel. The guide channel is opened on the side wall of the locking seat and is opened along the axial direction of the locking seat. The limiting channel is located at the bottom of the guide channel and communicates with the guide channel. The limiting channel is opened along the circumferential direction of the locking seat. The locking fastener is a locking slide, which is located on the rotational contour line formed by rotating the end of the rotating rod. The locking slide includes a limiting section in the middle and sliding sections at both ends. The width of the limiting section is less than or equal to the outer diameter of the locking seat, and the width of the sliding section is greater than the outer diameter of the locking seat.

2. The explosion-proof cabinet according to claim 1, characterized in that, A slot is provided on the knob shaft, and the operating lever is inserted into the slot. The slot has a polygonal cross-section, and the cross-sectional shape of the operating lever is adapted to the shape of the slot.

3. The explosion-proof cabinet according to claim 2, characterized in that, The outer surface of the knob shaft is provided with a U-shaped groove, and the operating lever is inserted into the U-shaped groove.

4. The explosion-proof cabinet according to any one of claims 1-3, characterized in that, The handle turning assembly also includes: Fixed components, which are welded and fixed to the door body; A bushing is inserted into the door body, and an insertion cavity for inserting a knob shaft is provided inside the bushing; The handle knob includes: a body portion that passes through the fixing member; The rotating rod is connected to one side of the main body.

5. The explosion-proof cabinet according to claim 4, characterized in that, The stop member is also provided with a locking hole that penetrates the stop member, a pin is provided in the locking hole, and a padlock is provided on the pin.

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