An explosion-proof and increased-safety type distribution cabinet

Abstract

The present invention discloses an explosion-proof and increased-safety type distribution cabinet, comprising: an explosion-proof cabinet body, within which an accommodation space is formed; a partition member, disposed within the explosion-proof cabinet body for dividing the accommodation space into an explosion-proof cavity and an increased-safety cavity having a wiring opening portion, and an installation space communicating the increased-safety cavity and the explosion-proof cavity is formed at the top of the explosion-proof cabinet body; a plurality of electrical components, located within the explosion-proof cavity, and the plurality of electrical components are connected by copper bars; a cable group, assembled on the partition member and located within the increased-safety cavity, which is led out from the top of the increased-safety cavity and is bent within the installation space and then connected to the electrical components located within the explosion-proof cavity. By means of the present invention, the problems in the prior art that the wiring operation of the distribution cabinet is inconvenient and cannot meet the installation requirements of large-current and multi-strand cables needed in the fields of oil exploitation or natural gas exploitation by users are solved.

Description

Technical Field

[0001] The present invention belongs to the field of flameproof cabinets, and particularly relates to an improvement in the structure of a flameproof and increased-safety type power distribution cabinet. Background Art

[0002] For places where explosive gases exist, power distribution cabinets often need to have explosion-proof functions. Especially in the field of oil or natural gas extraction, the performance of Class II explosion protection is a rigid requirement to ensure safety. However, most of the existing explosion-proof cabinets with explosion-proof functions are relatively small in size and are mainly used for low current and low voltage. When wiring, the explosion-proof gland directly enters the explosion-proof cavity formed by the explosion-proof cabinet for wiring. Users need to perform operations such as pressing wires and wiring in the narrow explosion-proof cavity, which is inconvenient to operate and has a low safety factor.

[0003] Moreover, the cables for the incoming and outgoing lines of traditional power distribution cabinets are generally below 80 mm. In the field of oil or natural gas extraction, large current, large voltage, and multi-strand cables are required, and the cable diameter is relatively large. The existing power distribution cabinets cannot meet the installation requirements of the large cable bending radius. Summary of the Invention

[0004] Aiming at the problems that the wiring operation of the power distribution cabinet in the prior art is inconvenient and cannot meet the installation requirements of large current and multi-strand cables in the field of oil or natural gas extraction by users, the present invention provides a flameproof and increased-safety type power distribution cabinet, which is not only convenient for users to wire and operate, but also can meet the installation and layout requirements of large current and large cables, and occupies less space.

[0005] To achieve the above invention object, the present invention adopts the following technical solutions:

[0006] A flameproof and increased-safety type power distribution cabinet, characterized by comprising:

[0007] A flameproof cabinet body, in which an accommodation space is formed;

[0008] A partition member, arranged in the flameproof cabinet body, used to divide the accommodation space into an explosion-proof cavity and an increased-safety cavity, and an installation space communicating the increased-safety cavity and the explosion-proof cavity is formed at the top of the flameproof cabinet body;

[0009] Electrical components, a plurality of which are arranged in the explosion-proof cavity, and the plurality of electrical components are connected by copper bars;

[0010] A cable group, assembled on the partition member and located in the increased-safety cavity, led out from the top of the increased-safety cavity, and bent in the installation space and then connected to the electrical components located in the explosion-proof cavity.

[0011] In some embodiments of the present application, the partition member includes:

[0012] A dividing body part, which is inclined and arranged in the flameproof cabinet body and is connected to both side walls of the flameproof cabinet body at both sides thereof;

[0013] An incoming line part, which is arranged on the dividing body part, and a first interface part is arranged on the incoming line part;

[0014] An outgoing line part, which is arranged on the dividing body part, and a second interface part is arranged on the outgoing line part.

[0015] In some embodiments of the present application, a fixed support device is arranged on the outgoing line part, and a fastening opening for carrying and fastening a cable is arranged on the fixed support device.

[0016] In some embodiments of the present application, an increased safety cavity is formed by enclosing between the outgoing line part, the dividing body part and the side wall of the flameproof cabinet body;

[0017] A second wiring cavity is formed by enclosing between the incoming line part, the dividing body part and the side wall of the flameproof cabinet body, and the second wiring cavity has the incoming line interface part facing the user.

[0018] In some embodiments of the present application, an increased safety door body is further included, and the increased safety door body is rotatably connected to the partition cabinet body, and can rotate relative to the flameproof cabinet body to block or open the increased safety cavity.

[0019] In some embodiments of the present application, the dividing body part includes a first inclined part and a second inclined part which are sequentially connected along the direction from bottom to top, the included angle between the first inclined part and the bottom wall of the flameproof cabinet body is greater than the included angle between the second inclined part and the bottom wall of the flameproof cabinet body, the incoming line part is connected at the connection position of the first inclined part and the second inclined part, and the outgoing line part is connected at the top position of the second inclined part.

[0020] In some embodiments of the present application, a bearing platform is further arranged on the partition cabinet body, and an incoming line fixing clip is fixedly arranged on the bearing platform, and the incoming line fixing clip is arranged at a position below the incoming line interface part.

[0021] In some embodiments of the present application, a flameproof door body is further included, and it is rotatably connected to the flameproof cabinet body and can block the flameproof cavity when closed.

[0022] In some embodiments of the present application, an operating device for operating an internal isolating switch and a locking device for locking and fixing the operating device are arranged on the flameproof cabinet body.

[0023] In some embodiments of the present application, a first quick-connect plug for assembling a cable is provided on the incoming line component, and a second quick-connect plug for assembling a cable is provided on the outgoing line component.

[0024] Compared with the prior art, the advantages and positive effects of the present invention are:

[0025] For the flameproof and increased-safety type distribution cabinet proposed by the present invention, during installation, the flameproof cabinet body is divided by a partition component to form an increased-safety cavity and a flameproof cavity. And the electrical components located in the partition cavity are all connected by copper bars. In this way, the cable wiring operation can be mainly completed inside the increased-safety cavity, so that users do not need to enter the explosion-proof cavity for wiring operation, which facilitates the wiring for users.

[0026] In the flameproof and increased-safety type distribution cabinet of the present invention, installation spaces are also formed at the corresponding positions at the tops of the increased-safety cavity and the flameproof cavity. In this way, the cables led out from the increased-safety cavity can be bent at the installation space above the increased-safety cavity and the flameproof cavity and then connected to the electrical components at the top of the flameproof cavity, meeting the installation requirements for the bending space with a large bending radius of large-diameter cables, so that it can be suitable for installing large-diameter cables.

[0027] In addition, the increased-safety cavity formed in the present invention is located inside the flameproof cabinet body, without the need to additionally occupy external space, reducing the occupied space of the entire flameproof cabinet body.

[0028] After reading the specific embodiments of the present invention in conjunction with the drawings, other features and advantages of the present invention will become clearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the following-described drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0030] Figure 1 is a schematic diagram of the overall structure of the flameproof and increased-safety type distribution cabinet in the embodiment of the present invention;

[0031] Figure 2 is a schematic diagram of the internal structure of the flameproof and increased-safety type distribution cabinet in the embodiment of the present invention Figure 1 ;

[0032] Figure 3 is a schematic diagram of the internal structure of the flameproof and increased-safety type distribution cabinet in the embodiment of the present invention Figure 2 ;

[0033] Figure 4Schematic diagram of the fixed support device in the embodiment of the present invention;

[0034] Figure 5 Schematic diagram of the cooperation between the operating device and the operating rod of the flameproof and increased-safety type distribution cabinet in the embodiment of the present invention;

[0035] Figure 6 Schematic diagram of the cooperation between the operating device and the locking device of the flameproof and increased-safety type distribution cabinet in the embodiment of the present invention;

[0036] Figure 7 Schematic diagram of the locking seat of the flameproof and increased-safety type distribution cabinet in the embodiment of the present invention;

[0037] Figure 8 Schematic diagram of the blocking member of the flameproof and increased-safety type distribution cabinet in the embodiment of the present invention.

[0038] Among them, flameproof cabinet body - 100; installation space - 130;

[0039] Flameproof cavity - 110; flameproof door body - 111;

[0040] Increased-safety cavity - 120; wiring opening part - 121; increased-safety door body - 122;

[0041] Second wiring cavity - 150; bearing platform - 160; incoming line fixing clip - 170;

[0042] Electrical components - 300; copper busbar - 310; operating rod - 320;

[0043] Partition component - 200;

[0044] Partition body part - 210; first inclined part - 211; second inclined part - 212;

[0045] Incoming line component - 220; first interface part - 221; first quick-connect plug - 222;

[0046] Outgoing line component - 230; second interface part - 231; second quick-connect plug - 232;

[0047] Cable group - 400;

[0048] Fixed support device - 500; fastening port - 510;

[0049] Operating device - 600; handle knob part - 610; body part - 611; rotating rod part - 612; knob shaft - 620; fixing part - 630; bushing - 640;

[0050] Locking device - 700; locking fixing part - 710; limiting section - 711; sliding section - 712; locking seat - 720; elastic member - 730; blocking member - 740;

[0051] Guide limiting channel - 810; sliding protrusion - 820; guide channel - 811; limiting channel - 812. Specific implementation mode

[0052] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the present invention in detail with reference to the drawings and embodiments.

[0053] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0054] An embodiment of an explosion-proof and increased-safety distribution cabinet proposed by the present invention includes:

[0055] Explosion-proof cabinet body 100, in which an accommodation space is formed; in some embodiments of the present application, the explosion-proof cabinet body 100 is a cuboid, and electrical components 300 are arranged inside it.

[0056] Of course, the explosion-proof cabinet body 100 can also be a cube structure, etc., and no specific limitation is made here.

[0057] Partition member 200, arranged in the explosion-proof cabinet body 100, used to divide the accommodation space into an explosion-proof cavity 110 and an increased-safety cavity 120 with a wiring opening 121;

[0058] When the partition member 200 is arranged, it can be inclined from bottom to top in the explosion-proof cabinet body 100, and it is connected to at least two opposite side walls of the explosion-proof cabinet body 100 to divide the accommodation space.

[0059] Through the partition member 200, the division of the accommodation space is correspondingly realized, so that an increased-safety cavity 120 and an explosion-proof cavity 110 are divided from the accommodation space.

[0060] Electrical components 300, arranged in the explosion-proof cavity 110, there are multiple, and the multiple electrical components 300 are connected by copper bars 310.

[0061] In some embodiments of the present application, the increased safety cavity 120 and the flameproof cavity 110 are arranged in parallel. When looking at the flameproof cabinet 100 from the front to the back, the increased safety cavity 120 is located on the front side of the flameproof cavity 110.

[0062] The incoming line interface part below the increased safety cavity 120 is located on the front side and faces the user.

[0063] An installation space 130 communicating the increased safety cavity 120 and the flameproof cavity 110 is formed at the top of the flameproof cabinet 100.

[0064] The cable group 400 is assembled on the partition member 200 and is located in the increased safety cavity 120. It is led out from the top of the increased safety cavity 120, bent in the installation space 130, and then connected to the electrical components 300 located in the flameproof cavity 110.

[0065] The cable group 400 includes multiple cables, and the wiring connection of the cables is mainly completed in the increased safety cavity 120.

[0066] The electrical components 300 in the flameproof cavity 110 may include, for example, a disconnector, a relay, a reactor, etc.

[0067] To simplify the wiring operation, in this embodiment, the electrical components 300 located in the flameproof cavity 110 are inserted into each other through copper bars 310, which avoids using cable wiring and eliminates the need for the user to enter the flameproof cavity 110 for wiring.

[0068] In the flameproof and increased safety type power distribution cabinet proposed in this embodiment, an increased safety cavity 120 is separated by the partition member 200. And during the setting, all the electrical components 300 in the flameproof cavity 110 are connected through copper bars 310, so that all the cable wiring work can be carried out in the increased safety cavity 120. When the user performs wiring, there is no need to use cables to connect the various electrical components 300 in the flameproof cavity 110. Wiring operations are carried out in the increased safety cavity 120, which facilitates the user to perform wiring.

[0069] Moreover, in this embodiment, an installation space 130 communicating the increased safety cavity 120 and the flameproof cavity 110 is correspondingly provided at the top position of the flameproof cabinet 100. In this way, the cables led out from the increased safety cavity 120 can be bent in the installation space 130 in this top area and then connected to the electrical components 300. The installation space 130 in the top area realizes the accommodation of the cables, meets the requirements of the large bending radius of large-diameter cables for the installation space 130, and enables the flameproof cabinet 100 in this embodiment to meet the installation requirements of large-diameter cables;

[0070] In the explosion-proof and increased-safety type distribution cabinet of this embodiment, an increased-safety cavity 120 is correspondingly arranged inside the partition cabinet body, which reduces the occupation of the external space by the entire explosion-proof cabinet body 100 compared with the method of arranging the increased-safety cavity 120 outside the explosion-proof cabinet body 100.

[0071] In some embodiments of the present application, the partition member 200 includes:

[0072] A partition main body member 210, which is inclined and arranged inside the explosion-proof cabinet, and its two sides are connected to the two side walls of the explosion-proof cabinet. In some embodiments of the present application, the partition main body member 210 includes a first inclined portion 211 and a second inclined portion 212 connected in sequence along the direction from bottom to top, and the included angle between the first inclined portion 211 and the bottom wall of the explosion-proof cabinet body 100 is greater than the included angle between the second inclined portion 212 and the bottom wall of the explosion-proof cabinet body 100.

[0073] The first inclined portion 211 corresponds to a first inclined plate, the second inclined portion 212 corresponds to a second inclined plate, and the inclination angle of the first inclined plate is greater than that of the second inclined plate.

[0074] When connecting, the first inclined plate can be connected to the front side wall and the left and right side walls of the explosion-proof cabinet body 100, and the second inclined plate is connected to the left and right side walls of the explosion-proof cabinet body 100.

[0075] The first inclined portion 211 and the second inclined portion 212 can be formed by welding during molding. It is arranged at the middle position of the explosion-proof cabinet body 100.

[0076] Since the partition main body member 210 is inclined, the top area of the corresponding explosion-proof cavity 110 formed by its partition is narrow and the bottom area is wide.

[0077] Moreover, by adopting the inclined setting method for the partition main body member 210, the occupied space can also be reduced.

[0078] An incoming line component 220, which is arranged on the partition main body member 210, and a first interface portion 221 is provided on the incoming line component, and the first interface portion 221 corresponds to a first installation port.

[0079] To achieve the quick plug-in installation of the cable, a first quick-connect plug 222 for assembling the cable is correspondingly installed at the first interface portion 221. The first quick-connect plug 222 is a connector component such as an aviation plug. When wiring the cable, it can be directly connected to the first quick-connect plug 222 for wiring connection, and the operation is simple and convenient.

[0080] The incoming line component 220 is an incoming line board, which can be arranged perpendicular to the partition main body member 210 or inclined at a certain angle with respect to the partition main body member 210.

[0081] The outgoing line component 230 is arranged on the split body component 210, and a second interface portion 231 is provided on the outgoing line component 230.

[0082] The outgoing line component 230 is an outgoing line board, and when it is arranged, it can also be arranged perpendicular to the split body component 210 or be arranged obliquely at a certain angle with respect to the split body component 210.

[0083] The second interface portion 231 is a second mounting port opened on the outgoing line component 230, and a second quick-connect plug 232 is correspondingly assembled in the second mounting port. The second quick-connect plug 232 can be selected as an explosion-proof gland, so that the incoming line reaches the explosion-proof performance requirements.

[0084] When connecting, the incoming line component 220 is connected to the connection position of the first inclined portion 211 and the second inclined portion 212, and the outgoing line component 230 is connected to the top position of the second inclined portion 212.

[0085] In this embodiment, by installing the incoming line component 220 and the outgoing line component 230 on the inclined split body, the outgoing line component 230 and the incoming line component 220 are also arranged obliquely. The oblique arrangement is more convenient for operation when wiring;

[0086] Moreover, the way that the split body component 210, the incoming line component 220 and the outgoing line component 230 are all arranged obliquely can also achieve a good waterproof effect.

[0087] When wiring, the user can first dock the cable with the first quick-connect plug 222 located on the incoming line component 220, and then the cable led out from the first plug 222 enters the explosion-proof cavity 110 through the second quick-connect plug 232 on the outgoing line component 230 to connect the electrical component 300.

[0088] In some embodiments of the present application, a fixed support device 500 is provided on the outgoing line component 230, and a fastening port 510 for carrying and fastening the cable is provided on the fixed support device 500.

[0089] The outgoing line fixing device includes an outgoing line board and a support board arranged below the outgoing line board for supporting the outgoing line board. A plurality of fastening ports 510 are correspondingly arranged on the outgoing line board, and the fastening ports 510 can be arranged along the length direction of the outgoing line board when arranged.

[0090] The fixing and supporting of the cable are realized through the outgoing line fixing device to prevent the cable from shaking inside the explosion-proof cabinet 100.

[0091] In some embodiments of the present application, the outgoing line board includes a plurality of outgoing line sub-boards, each outgoing line sub-board is provided with a notch, and after adjacent outgoing line sub-boards are spliced, they are locked and fixed by a locking bolt, and the notches on the corresponding two outgoing line sub-boards are butted together to form a fastening port 510.

[0092] Since the fastening port 510 is formed by butting two notches, it can adapt to the clamping and fixing of cables within a certain radial value range, and has good versatility.

[0093] In some embodiments of the present application, an increased safety cavity 120 is formed by enclosing between the outgoing line component 230, the dividing body component 210, and the side wall of the flameproof cabinet 100. The wiring operation between the first quick-connect plug 222 and the explosion-proof gland 232 can be carried out within the increased safety cavity 120.

[0094] A second wiring cavity 150 is formed by enclosing between the incoming line component, the dividing body component 210, and the side wall of the flameproof cabinet 100. The second wiring cavity 150 has the incoming line interface portion facing the user.

[0095] The wiring operation between the cable and the first quick-connect plug 222 can be carried out within the second wiring cavity 150.

[0096] In some embodiments of the present application, it further includes an increased safety door body 122, the increased safety door body 122 is rotatably connected to the partition cabinet body, and it can rotate relative to the flameproof cabinet 100 to block the increased safety cavity 120 or open the increased safety cavity 120. By opening or closing the increased safety door body 122, it is convenient to carry out the wiring operation on the cable in the increased safety cavity 120.

[0097] In some embodiments of the present application, a bearing platform 160 is further provided on the partition cabinet body, and an incoming line fixing clip 170 is fixedly arranged on the bearing platform 160. The incoming line fixing clip 170 is arranged at a position below the incoming line interface portion. Before the cable is wired, it can first pass through the incoming line fixing clip 170, and then enter the increased safety cavity 120 through the first quick-connect plug 222.

[0098] The incoming line fixing clip 170 can provide a certain support and bearing for the cable, and can also effectively avoid the problem of damage to the first quick-connect plug 222 caused by the overweight of the cable.

[0099] The structure of the incoming line fixing clip 170 is the same as that of the fixing and supporting device 500, and it is mainly used to realize the locking and positioning of the cable, which will not be elaborated here one by one.

[0100] In some embodiments of the present application, it further includes a flameproof door body 111, which is rotatably connected to the flameproof cabinet 100 and can block the flameproof cavity 110 when closed.

[0101] When the explosion-proof door body 111 is arranged, two explosion-proof door bodies 111 can be arranged from top to bottom along the height direction of the explosion-proof cabinet body 100. By opening the upper explosion-proof door body 111, connection operations can be carried out between the cables led out from the increased-safety cavity 120, the electrical components 300 in the explosion-proof cavity 110, and the copper busbars 310 of the electrical components 300 located in the upper area. By opening the explosion-proof door body 111 located in the lower area, wiring connection operations of the copper busbars 310 can be carried out between the electrical components 300 in the explosion-proof cavity 110.

[0102] In some embodiments of the present application, a support plate is further arranged in the explosion-proof cavity 110. The support plate is arranged at the bottom area position. An explosion-proof gland is arranged on the support plate. For the electrical component 300 located at the bottom of the explosion-proof cavity 110, it is led out through a cable, and the cable lead-out end is directly led out through the explosion-proof gland.

[0103] In some embodiments of the present application, an operating device 600 for operating the internal disconnector and a locking device 700 for locking and fixing the operating device 600 are arranged on the explosion-proof cabinet body 100.

[0104] Since the inside of the explosion-proof cabinet body 100 is flammable and explosive, when operating the disconnector, it is required not to open the explosion-proof cabinet body 100. The operating device 600 arranged in this embodiment can realize the operation of the internal disconnector from the outside, which not only ensures safety but also ensures the normal operation of the disconnector.

[0105] In some embodiments of the present application, the disconnector is configured with an operating rod 320 for operating it. The operating device 600 includes:

[0106] A handle screwing assembly, assembled on the explosion-proof door body 111, for cooperating with the operating rod 320. The handle screwing assembly can be separated from the operating rod 320 when the explosion-proof door body 111 is opened, and can be connected to the operating rod 320 when the explosion-proof door body 111 is closed to drive the operating rod 320 to act when it rotates.

[0107] The handle screwing assembly includes:

[0108] A handle knob 610;

[0109] A knob shaft 620, at least part of the knob shaft 620 passes through the explosion-proof door body 111 and is fixedly connected to the handle knob 610. The knob shaft 620 and the operating rod 320 are inserted and matched.

[0110] During installation, a U-shaped groove can be provided on the rotating shaft, and the operating rod 320 is inserted into the U-shaped groove. When the explosion-proof door body 111 is opened, the rotating shaft and the operating rod 320 are separated. When the explosion-proof door body 111 is closed, the rotating shaft and the operating rod 320 are inserted and can achieve power transmission.

[0111] The handle screwing assembly further includes:

[0112] A fixing component 630, which is welded and fixed on the door body. The fixing component 630 can be a fixing plate, which is welded and fixed on the explosion-proof door body 111.

[0113] A bushing 640, which is inserted into the door body. An insertion cavity for inserting the rotating knob shaft is provided inside the bushing 640.

[0114] The handle knob 610 includes: a body part 611, and the body part 611 passes through the fixing component 630;

[0115] A rotating rod part 612, which is connected to one side of the body part 611. The rotating rod part 612 corresponds to a rotating rod.

[0116] During operation, by rotating the handle knob 610, the rotating shaft connected thereto can be driven to rotate, and the rotating shaft drives the operating rod 320 connected and cooperated therewith to move, thereby realizing the operation of the disconnect switch.

[0117] To lock the handle knob 610, that is, the operating position of the disconnect switch, a locking device 700 is also correspondingly provided during the installation of this embodiment.

[0118] The locking device 700 includes:

[0119] A locking and fixing part 710, which is assembled on the explosion-proof door body 111; the locking and fixing part 710 is a locking slideway, which is welded and fixed on the explosion-proof door body 111.

[0120] The locking slideway includes a limiting section 711 in the middle and sliding sections 712 at both ends. The slideway width of the limiting section 711 is smaller than that of the sliding sections 712.

[0121] A locking seat 720, which is assembled in the locking and fixing part 710. The locking seat 720 is specifically clamped in the locking and fixing part 710. The locking seat 720 is a locking cylinder, and its top has an opening.

[0122] An elastic locking assembly, which is arranged in the locking seat 720. It can be locked in the locking seat 720 after being compressed and rotated, and automatically pop out of the locking seat 720 after being rotated in the reverse direction to limit the rotating rod part 612.

[0123] The elastic locking assembly includes:

[0124] An elastic member 730 is assembled within the locking seat 720, and one end thereof is fixedly connected to the bottom of the locking seat 720.

[0125] The elastic member 730 is a spring, which is vertically arranged within the locking seat 720, and its bottom end is fixedly welded to the bottom of the locking seat 720.

[0126] A blocking member 740 is disposed above the elastic member 730, and its bottom is fixedly connected to the other end of the elastic member 730.

[0127] The blocking member 740 is a blocking post, and its bottom is fixedly welded to the top of the elastic member 730.

[0128] A guiding and limiting structure is disposed between the locking seat 720 and the blocking member 740 for guiding and limiting the sliding of the blocking member 740.

[0129] The guiding and limiting structure includes a guiding and limiting channel 812810 provided on the inner wall of the locking seat 720 and a sliding protrusion 820 provided on the blocking member 740.

[0130] When the sliding protrusion 820 is provided, it is provided at a side position of the blocking member 740.

[0131] The sliding protrusion 820 is located within the guiding and limiting channel 810, and the sliding protrusion 820 can slide along the guiding and limiting channel 810.

[0132] The guiding and limiting channel 810 includes a guiding channel 811 and a limiting channel 812. The guiding channel 811 is opened on the side wall of the locking seat 720 and is opened along the axial direction of the locking seat 720. The limiting channel 812 is located at the bottom of the guiding channel 811 and is communicated with the guiding channel 811. The limiting channel 812 is opened along the circumferential direction of the locking seat 720.

[0133] The guiding channel 811 corresponds to a guiding groove, and the limiting channel 812 corresponds to a limiting groove. The guiding groove is opened from top to bottom along the height direction of the locking seat 720.

[0134] When it is not necessary to lock and limit the handle knob member 610 through the elastic locking assembly, the blocking member 740 can be pressed down. At the same time, the blocking member 740 presses down the elastic member 730, and the elastic member 730 stores energy. During the process of pressing down the blocking member 740, the sliding protrusion 820 slides along the vertically opened guiding channel 811. After pressing down in place, the blocking member 740 is rotated so that the sliding protrusion 820 slides into the limiting channel 812 and is limited. At this time, since the blocking member 740 is pressed down and limited, it will not limit the handle knob member 610. At this time, the isolating switch can be operated by rotating the handle knob member 610 to drive the operating rod 320 to rotate.

[0135] When it is necessary to lock the handle knob member 610, the blocking member 740 can be rotated in the reverse direction so that the sliding protrusion 820 is separated from the limiting channel 812. At this time, under the reverse acting force of the elastic member 730, the blocking member 740 can be automatically bounced up. After bouncing up, the blocking member 740 can resist against the side surface of the rotating rod portion 612 to limit and lock the handle screwing assembly, thereby realizing the locking and fixing of the isolating switch.

[0136] The width of the slideway of the limiting section 711 is less than or equal to the outer diameter of the locking seat 720, and the width of the slideway of the sliding section 712 is greater than the outer diameter of the locking seat 720. This can enable the locking seat 720 to be clamped and fixed on the limiting section 711.

[0137] At the same time, when the elastic member 730 of the elastic locking assembly located in the locking seat 720 is damaged, the locking seat 720 can be slid from the limiting section 711 to the sliding section 712 located at both ends of the limiting section 711. Since the width of the slideway of the sliding section 712 is greater than that of the locking seat 720, the locking seat 720 can be taken out to replace the elastic member 730 inside it.

[0138] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, for those of ordinary skill in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some of the technical features can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions required to be protected by the present invention.

Claims

1. An explosion-proof and increased-safety type distribution cabinet, characterized in that, Includes: An explosion-proof cabinet body, wherein a receiving space is formed inside the explosion-proof cabinet body; A partition component is provided in the flameproof cabinet to divide the accommodating space into a flameproof cavity and an increased safety cavity, and an installation space is formed on the top of the flameproof cabinet to communicate with the increased safety cavity and the flameproof cavity; There are multiple electrical components located in the flameproof cavity, and the multiple electrical components are connected by copper busbars; a cable assembly, mounted on the partition member and located in the increased safety cavity, led out from the top of the increased safety cavity, bent in the installation space, and connected to the electrical components located in the flameproof cavity; The partition component includes: The split body is obliquely arranged in the flameproof cabinet, with two sides thereof connected to the two side walls of the flameproof cabinet; A line inlet component is provided on the split body component, and a first interface portion is provided on the line inlet component; An outlet component is provided on the split main body, and a second interface portion is provided on the outlet component; A fixing support device is provided on the outlet component, and a fastening opening for carrying and fastening the cable is provided on the fixing support device; An increased safety cavity is formed between the outlet component, the split main body component, and the side wall of the explosion-proof cabinet; A second wiring cavity is formed between the line-incoming component, the split body component, and the side wall of the flameproof cabinet, and the second wiring cavity has an incoming line interface portion facing the user; The split main body includes a first inclined portion and a second inclined portion connected in sequence from bottom to top, the angle between the first inclined portion and the bottom wall of the explosion-proof cabinet is greater than the angle between the second inclined portion and the bottom wall of the explosion-proof cabinet, the incoming wire component is connected at the connection position of the first inclined portion and the second inclined portion, and the outgoing wire component is connected at the top position of the second inclined portion.

2. The flameproof and increased safety type distribution cabinet according to claim 1, characterized in that, The increased safety door is also included. The increased safety door is rotatably connected to the flameproof cabinet and can be rotated relative to the flameproof cabinet to seal or open the increased safety cavity.

3. The flameproof and increased-safety type distribution cabinet according to claim 2, wherein, A bearing platform is further provided on the flameproof cabinet, and an incoming line fixing clamp is fixedly provided on the bearing platform. The incoming line fixing clamp is provided at a position below the incoming line interface portion.

4. The explosion-proof and increased safety distribution cabinet according to claim 1, characterized in that: It also includes a flameproof door body, which is rotatably connected to the flameproof cabinet body and can seal the flameproof cavity when closed.

5. The flameproof and increased safety distribution cabinet according to claim 1, characterized in that: An operating device for operating the internal isolating switch and a locking device for locking and fixing the operating device are provided on the flameproof cabinet.

6. The flameproof and increased safety type distribution cabinet according to claim 1, characterized in that, The incoming line component is provided with a first quick-connect plug for assembling a cable, and the outgoing line component is provided with a second quick-connect plug for assembling a cable.

Images