Combined high-explosive power distribution device

Abstract

The invention relates to the technical field of power distribution equipment, and discloses a combined high-explosive power distribution device which comprises a shell and electrical elements arranged in the shell, a plurality of partition plates are arranged in the shell, and mounting cavities used for mounting the electrical elements of different power distribution devices are formed between the two partition plates and between the partition plates and the shell. Busbars used for connecting different power distribution devices are arranged in the shell, and connecting holes used for allowing the busbars to penetrate through are formed in the partition plate. According to the invention, the electrical elements of the plurality of power distribution devices are all installed in the housing, and the electrical elements of the plurality of power distribution devices are electrically connected together through the busbar, so that the occupied space of the power distribution devices is reduced, and the wiring steps are simplified.

Description

Technical Field

[0001] The present application relates to the technical field of electric power distribution equipment, and in particular to a combined high-explosive power distribution device. Background Art

[0002] High-explosive power distribution units (HEPDUs) are specifically designed for use in flammable and explosive environments. Through specialized structural design and material selection, they prevent the spread of flames and high-temperature gases to the external environment in the event of an internal explosion, thereby preventing a wider explosion. These units not only provide power distribution and control but also ensure the safe and reliable operation of electrical systems in hazardous environments.

[0003] In the related art, the distribution device includes a flameproof casing and electrical components arranged in the casing. The distribution device adopts a single integrated structure and is connected to other distribution devices through a wiring barrel, resulting in a complex wiring structure. In addition, multiple distribution devices are arranged horizontally and occupy a large amount of space, which leads to low space utilization. Therefore, there is room for improvement. Summary of the Invention

[0004] In order to reduce the space occupied by the power distribution device, the present application provides a combined high-explosive power distribution device.

[0005] The combined high-explosive power distribution device provided in this application adopts the following technical solution: A combined high-explosive power distribution device comprises a shell and electrical components arranged in the shell. A plurality of partitions are provided in the shell. An installation cavity for installing electrical components of different power distribution devices is formed between two of the partitions and between the partitions and the shell. A busbar for connecting different power distribution devices is provided in the shell, and connection holes for the busbar to pass through are opened on the partitions.

[0006] By adopting this technical solution, when multiple power distribution devices need to be connected together, the electrical components of different power distribution devices can be installed in different installation cavities and then connected together via busbars. Connecting multiple power distribution devices in this way enables a three-dimensional arrangement of multiple power distribution devices. Compared to connecting single power distribution devices via wiring barrels, this eliminates the need for wiring barrels and shortens the gap between two power distribution devices, thereby reducing the space occupied by the power distribution devices and improving their space utilization.

[0007] Furthermore, the busbars enable electrical connections between multiple distribution units. When additional equipment needs to be connected to the distribution unit, it can be connected directly to the busbars, a quick and easy plug-and-play experience. Partitions also physically separate devices at different voltage levels, reducing the possibility of explosions caused by arc crosstalk and improving the safety of the distribution unit.

[0008] Optionally, it further includes a first combined box and a second combined box, which are overlapped in the vertical direction, and each of the first combined box and the second combined box includes a main feeder box, multiple branch feeder boxes and a control box. The busbar is respectively provided in the first combined box and the second combined box, and the busbar is used to connect the main feeder box, the branch feeder box and the control box. The main feeder boxes are both connected to a power supply, one of the power supplies supplies power to the first combined box, and the other power supply supplies power to the second combined box.

[0009] By adopting the above technical solution, the space occupied by the power distribution device is further reduced by stacking the first and second combined boxes. The first and second combined boxes are powered independently, and a failure of a single power supply does not affect the normal operation of the other layer.

[0010] Optionally, a connecting switch is provided in the feeder box, and the connecting switch is electrically connected to the control box. The connecting switch also includes a moving contact and a static contact. The connecting switch can connect and disconnect the connection between the moving contact and the busbar. One of the feeder boxes is provided with a connecting terminal, and the two ends of the connecting terminal are respectively arranged in the feeder boxes of the first combined box and the second combined box. The connecting terminal connects the static contact in the first combined box and the busbar of the second combined box.

[0011] By adopting the above technical solution, when the power distribution device is operating normally, the movable and stationary contacts of the interconnector switch remain electrically connected, and the power sources connected to the two main feeder boxes supply power to the first and second combined boxes respectively via two busbars. When the power source connected to the main feeder box of the first combined box fails, the control box of the first combined box controls the interconnector switch to connect the movable contacts to the busbar, allowing the power source connected to the main feeder box of the second combined box to connect to the busbar of the first combined box, thereby enabling the power source of the second combined box to simultaneously supply power to the first combined box. When the power source of the second combined box fails, the power switching steps are the same as above. By switching power in this manner, the time required for fault switching is shortened, maximizing the normal operation of the power distribution device. Even if one power source fails, the other layer of boxes can still operate normally, achieving single power source control of multiple layers of boxes, making the power distribution device highly flexible and adaptable. Furthermore, the connection terminals are built into the housing. Compared to the previous method of wiring outside the housing, this method saves wiring steps, makes the connection more stable, and helps protect the connection terminals from damage. The entire operation does not require opening the housing, reducing the risk of live work.

[0012] Optionally, the shell includes side panels and several upper covers, the upper covers are detachably connected to the side panels, a sliding hole is provided on the partition, and several indicating components are provided on the partition, the indicating components include a first travel switch arranged on the side of the partition away from the upper cover, a first elastic member arranged on the side of the partition close to the upper cover, and a trigger rod slidably arranged in the sliding hole, the trigger rod slides in a direction close to or away from the upper cover, the first elastic member can push the trigger rod in a direction close to the upper cover, the first travel switch is electrically connected to the control box, the first travel switch outputs an upper cover closing signal when turned on, and outputs a full-off signal when closed, and when the upper cover is connected to the side panel, one end of the trigger rod abuts against the upper cover and the other end abuts against the first travel switch.

[0013] By adopting the above technical solution, when the box needs to be inspected, the upper cover can be opened first. At this time, the upper cover no longer contacts the trigger rod, and the trigger rod slides toward the upper cover under the action of the first elastic member, thereby releasing the trigger rod from contact with the first travel switch, causing the first travel switch to close. The first travel switch then outputs a full-off signal to the control box, automatically de-energizing the box when the upper cover is opened, facilitating inspection and reducing the risk of accidentally touching live components when the upper cover is opened. When the upper cover is closed, the upper cover pushes the trigger rod toward the partition and compresses the elastic member, causing one end of the trigger rod to contact the upper cover and the other end to contact the first travel switch, thereby turning on the first travel switch. The first travel switch then outputs a cover-closed signal to the control box, indicating that the control box cover is securely closed and allowing the box to be powered on. The box's power on and off are synchronized with the closing and opening of the upper cover, making it convenient for inspection and maintenance, without the need for a separate power switch. The trigger rod is rigidly connected to the upper cover and the first travel switch, which reduces the risk of live unlocking caused by false alarms of the electronic sensor compared to using an electronic sensor.

[0014] Optionally, a sliding ring is provided on the hole wall of the sliding hole, two ends of the sliding ring extend out of the sliding hole, and the trigger rod is slidably arranged in the sliding ring.

[0015] By adopting the above technical solution, when the trigger rod slides in the sliding hole, the sliding ring can guide the sliding of the trigger rod, so that the trigger rod slides more smoothly in the sliding hole, so that the trigger rod can better abut the upper cover and the first stroke switch, thereby ensuring that the box body can automatically power off normally when the cover is opened, and can automatically power on normally when the cover is closed.

[0016] Optionally, the trigger rod includes a sliding portion and an extending portion, the extending portion is detachably connected to the sliding portion, the extending portion is arranged on a side of the sliding portion close to the upper cover plate, and the sliding portion is slidably arranged in the sliding hole.

[0017] By adopting the above technical solution, when the extension part or the sliding part is deformed and worn after long-term use, it is only necessary to replace the extension part or the sliding part alone without replacing the entire trigger rod, thus saving resources.

[0018] Optionally, the first elastic member includes a return spring sleeved on the sliding portion, and a limiting ring is provided at one end of the sliding portion close to the extension portion. One end of the return spring abuts against the limiting ring and the other end abuts against the sliding ring.

[0019] By adopting the above technical solution, when the upper cover is opened, the return spring will extend toward the upper cover, thereby pushing the trigger rod toward the upper cover, so that the trigger rod no longer contacts the first travel switch, thereby closing the first travel switch and de-energizing the box. The limit ring can limit the return spring, making it difficult for the return spring to separate from the sliding portion, thereby effectively pushing the return spring on the trigger rod. The sliding portion can guide the return spring's deformation direction, making it less likely to deform and extending the return spring's service life.

[0020] Optionally, the shell further includes several lower covers, which are detachably connected to the side panels, and each of the main feed box, sub-feeder box, and control box corresponds to an upper cover and a lower cover, and a mounting hole is provided on the partition, and several disconnecting assemblies are provided on the partition, and the disconnecting assemblies include a linkage rod slidably arranged in the mounting hole, a second travel switch arranged on the side of the partition away from the lower cover, and a second elastic member arranged on the side of the partition close to the lower cover, and the linkage rod slides in the mounting hole in a direction close to or away from the lower cover, and the second elastic member can drive the linkage rod to slide in a direction close to the lower cover, and when the lower cover is connected to the side panel, one end of the linkage rod abuts against the lower cover and the other end abuts against the second travel switch, and the second travel switch is electrically connected to the control cabinet, and when the second travel switch is turned on, it outputs a lower cover closing signal, and when the second travel switch is closed, it outputs a break signal to cut off the power to the box with the lower cover opened separately, and when the first travel switch is closed, it outputs a full break signal to cut off the power to the first combination box or the second combination box.

[0021] By adopting the above technical solution, when one of the boxes needs to be inspected, the lower cover of the main feeder box, sub-feeder box or control box that needs to be inspected can be opened, thereby releasing the linkage rod. The linkage rod slides away from the partition under the action of the second elastic member, so that the linkage rod no longer abuts the second travel switch, thereby closing the second travel switch, and the second travel switch outputs a disconnection signal to the control box, thereby cutting off the power to the individual box. When the single cabinet is inspected, other equipment on the same floor operates normally, reducing the power outage time. When the lower cover is closed, the linkage rod abuts the lower cover and the second travel switch, thereby opening the second travel switch, and the second travel switch outputs a lower cover closed signal to the control box, prompting the staff that the lower cover is tightly closed, making it easier to know whether the lower cover is closed.

[0022] When multiple boxes need to be inspected, the upper cover of one of the boxes can be opened first, thereby closing the first travel switch, so that the first travel switch outputs a full-off signal to the control box, thereby cutting off the power to the first combination box or the second combination box, without having to cut off the power to the boxes one by one, which is convenient for inspecting multiple boxes.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. By integrating multiple power distribution devices into the same housing and providing several partitions in the housing to isolate the electrical components in each power distribution device, and by electrically connecting the power distribution devices through busbars, complex wiring steps are saved and the space occupied by the power distribution devices is reduced; 2. The static contacts in the first combined box and the busbars in the second combined box are connected through the built-in connection terminals, and the busbars in the first combined box and the busbars in the second combined box are disconnected and connected through the tie switch to achieve switching between dual power supply and single power supply. Even if one of the power supplies fails, the first and second combined boxes can still operate normally; 3. The indicating components and disconnecting components can cut off the power of the boxes in stages, so that other boxes can work normally when only a single box needs to be repaired. When multiple boxes need to be repaired, all boxes on the same layer will be powered off to facilitate maintenance and reduce the risk of live operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an overall structural diagram of an embodiment of the present application.

[0025] Figure 2 This is a schematic diagram of the structure of the busbar after partially hiding the housing in an embodiment of the present application.

[0026] Figure 3 It is a schematic diagram of the local structure of the indicator component in the embodiment of the present application.

[0027] Figure 4 It is a schematic diagram of the partial structure of the tie switch in the embodiment of the present application.

[0028] Figure 5 It is a schematic diagram of the partial structure of the second travel switch in the embodiment of the present application.

[0029] Description of reference numerals: 1. Casing; 11. Side panel; 12. Upper cover; 13. Lower cover; 14. Partition; 141. Connecting hole; 142. Sliding hole; 143. Mounting hole; 144. Sliding ring; 15. Mounting cavity; 16. Cabinet door; 2. First combined box; 21. Main feeder box; 22. Branch feeder box; 23. Control box; 3. Second combined box; 4. Electrical components; 5. Busbar; 6. Indicating assembly; 61. First travel switch; 62. First elastic member; 621. Return spring; 63. Trigger rod; 631. Sliding portion; 632. Extension portion; 633. Limiting ring; 7. Disconnecting assembly; 71. Linking rod; 72. Second travel switch; 73. Second elastic member; 731. Connecting spring; 8. Contactor; 81. Moving contact; 82. Static contact; 9. Connecting terminal. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-5 This application is described in further detail.

[0031] The embodiments of the present application disclose a combined high-explosive power distribution device.

[0032] Reference Figure 1 and Figure 2 A combined high-explosive power distribution device includes a housing 1, a first combined box body 2 and a second combined box body 3 disposed within the housing 1, and a plurality of electrical components 4 of the power distribution device disposed within the first combined box body 2 and the second combined box body 3. The housing 1 includes side panels 11, a plurality of upper covers 12, a plurality of lower covers 13, and a plurality of cabinet doors 16. The upper covers 12 and the lower covers 13 are detachably connected to the side panels 11. In this embodiment, the upper covers 12 and the lower covers 13 are preferably connected to the side panels 11 by bolts. Other detachable connection methods can also be selected according to customer needs.

[0033] Reference Figure 1 and Figure 2 Multiple partitions 14 are provided within the housing 1. Mounting cavities 15 for mounting electrical components 4 of different power distribution devices are formed between each partition 14 and between each partition 14 and the housing 1. Each mounting cavity 15 corresponds to an upper cover 12, a lower cover 13, and a cabinet door 16. Two layers of mounting cavities 15 are formed within the housing 1, and the two layers of mounting cavities 15 overlap vertically. This arrangement reduces the space occupied when different power distribution devices are combined and connected.

[0034] Reference Figure 1 and Figure 2 The first and second combined enclosures 2 and 3 overlap vertically. The electrical components 4 in the first and second combined enclosures 2 and 3 are housed in two separate mounting cavities 15. The first combined enclosure 2 is positioned above the second combined enclosure 3. Each of the first and second combined enclosures 2 and 3 includes a main feeder box 21, multiple sub-feeder boxes 22, and a control box 23. Both main feeder boxes 21 are connected to a power source (not shown). In this embodiment, the number of sub-feeder boxes 22 is preferably four, and each is positioned between the main feeder box 21 and the control box 23. The electrical components of the main feeder box 21, sub-feeder boxes 22, and control box 23 are housed in separate mounting cavities 15.

[0035] Reference Figure 2 Two sets of busbars 5 are provided within the housing 1. These busbars 5 are located in the first and second combined cabinets 2 and 3, respectively, and are used to connect the main feeder box 21, the branch feeder box 22, and the control box 23 in the first and second combined cabinets 2 and 3, respectively. The partition 14 is provided with connection holes 141 for the busbars 5 to pass through.

[0036] Reference Figure 2 and Figure 3 , a plurality of indicating components 6 and breaking components 7 are provided on the partition 14, and an indicating component 6 and a breaking component 7 are provided in each mounting cavity 15. A sliding hole 142 and a mounting hole 143 are provided on the partition 14 away from the upper cover plate 12 and the lower cover plate 13 of each mounting cavity 15. The sliding hole 142 is provided in an area on the partition 14 that is horizontal with the upper cover plate 12, and the mounting hole 143 is provided in an area on the partition 14 that is horizontal with the lower cover plate 13.

[0037] Reference Figure 3 and Figure 4 The indicator assembly 6 includes a first travel switch 61 disposed on the side of the partition 14 away from the upper cover 12, a first elastic member 62 disposed on the side of the partition 14 closer to the upper cover 12, and a trigger rod 63 slidably disposed in the sliding hole 142. The trigger rod 63 slides in the sliding hole 142 toward or away from the upper cover 12. The first elastic member 62 includes a return spring 621 sleeved on the trigger rod 63. The return spring 621 extends and contracts in the same direction as the sliding direction of the trigger rod 63, and the return spring 621 can drive the trigger rod 63 to slide toward the upper cover 12. When the upper cover 12 is connected to the side plate 11, one end of the trigger rod 63 abuts against the upper cover 12, and the other end abuts against the first travel switch 61, thereby activating the first travel switch 61.

[0038] Reference Figure 3 and Figure 5The disconnect assembly 7 includes a linkage rod 71 slidably disposed in a mounting hole 143, a second travel switch 72 disposed on the side of the partition 14 away from the lower cover 13, and a second elastic member 73 disposed on the side of the partition 14 closer to the lower cover 13. The linkage rod 71 slides in the mounting hole 143 toward or away from the lower cover 13. The second elastic member 73 includes a connecting spring 731 sleeved on the linkage rod 71. The connecting spring 731 extends and contracts in the same direction as the sliding direction of the linkage rod 71, and the connecting spring 731 tends to drive the linkage rod 71 toward the lower cover 13. When the lower cover 13 is connected to the side plate 11, one end of the linkage rod 71 abuts against the lower cover 13, and the other end abuts against the second travel switch 72, thereby turning on the second travel switch 72.

[0039] Reference Figure 3 A sliding ring 144 is provided on the wall of each of the sliding hole 142 and the mounting hole 143. The two ends of the sliding ring 144 extend out of the sliding hole 142 and the mounting hole 143. The trigger rod 63 and the linkage rod 71 are slidably disposed within the sliding ring 144. The trigger rod 63 includes a sliding portion 631 and an extension portion 632. The extension portion 632 is detachably connected to the sliding portion 631. In this embodiment, the extension portion 632 and the sliding portion 631 may be connected by bolts. The extension portion 632 is disposed on the side of the sliding portion 631 close to the upper cover plate 12. The sliding portion 631 is slidably disposed within the sliding hole 142. The linkage rod 71 has the same structure as the trigger rod 63, i.e., the linkage rod 71 also includes an extension portion 632 and a sliding portion 631.

[0040] Reference Figure 3 A limiting ring 633 is provided at one end of the sliding portion 631 close to the extending portion 632 , and one end of the return spring 621 and the connecting spring 731 abuts against the limiting ring 633 , and the other end abuts against the sliding ring 144 .

[0041] Reference Figure 1 、 Figure 2 and Figure 3 The first and second travel switches 61 and 72 are both electrically connected to the control box 23. When the first travel switch 61 is on, it outputs a signal indicating that the upper cover 12 is closed, and when it is off, it outputs a signal indicating that all power is off. When the first travel switch 61 outputs the signal indicating that all power is off to the control box 23, the control box 23 can control the entire first or second combined housing 2 or 3 to be powered off, allowing for maintenance of multiple housings. When the second travel switch 72 is on, it outputs a signal indicating that the lower cover 13 is closed, and when it is off, it outputs a signal indicating that all power is off. When the second travel switch 72 outputs the signal indicating that all power is off to the control box 23, the control box 23 can individually power off the housing with the lower cover 13 open, allowing for maintenance of a single housing.

[0042] Reference Figure 1When the combined power distribution device operates normally, the power supply connected to the main feeder box 21 in the first combined box 2 is used to power the first combined box 2, and the power supply connected to the main feeder box 21 in the second combined box 3 is used to power the second combined box 3.

[0043] Reference Figure 2 and Figure 4 One of the feeder boxes 22 is equipped with a tie switch 8 and connection terminals 9. Tie switch 8 is electrically connected to control box 23 and includes a movable contact 81 and a stationary contact 82. Tie switch 8 can connect and disconnect movable contact 81 from busbar 5. The aforementioned methods for connecting and disconnecting movable contact 81 from busbar 5 are known in the art and will not be described in detail. After tie switch 8 is installed in feeder box 22, movable contact 81 and stationary contact 82 are always connected.

[0044] Reference Figure 1 、 Figure 2 and Figure 4 The two ends of the connecting terminal 9 are respectively arranged in the feeder box 22 of the first combined box body 2 and the second combined box body 3, and one end of the connecting terminal 9 is connected to the static contact 82 of the first combined box body 2 through a wire, and the other end is connected to the busbar 5 of the second combined box body 3 through a wire, so that the static contact 82 of the connecting switch 8 and the busbar 5 of the second combined box body 3 are electrically connected.

[0045] The implementation principle of a combined high-explosive distribution device in an embodiment of the present application is: the casing 1 is divided into multiple installation cavities 15 by a partition 14, and the electrical components 4 of multiple distribution devices are installed in different installation cavities 15, and then the main feeder box 21, the branch feeder box 22 and the control box 23 are connected through the busbar 5. There is no need to configure an additional wiring structure, which simplifies the installation steps and reduces the space occupied by the distribution device.

[0046] When the power supply connected to the main feeder box 21 in the first combination box 2 or the second combination box 3 fails, the control box 23 will automatically control the connecting switch 8 to connect the moving contact 81 with the busbar 5 of the first combination box 2, so that the busbar 5 of the first combination box 2 and the second combination box 3 are connected, so that the first combination box 2 and the second combination box 3 are powered by a single power supply. Even if one power supply fails, the normal operation of the combined power distribution device as a whole can be guaranteed, thereby improving the adaptability and flexibility of the combined power distribution device.

[0047] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A combined high-explosive power distribution device, comprising a housing (1) and an electrical component (4) disposed within the housing (1), characterized in that: A plurality of partitions (14) are provided in the housing (1), and mounting cavities (15) for mounting electrical components (4) of different power distribution devices are formed between two of the partitions (14) and between the partitions (14) and the housing (1). A busbar (5) for connecting different power distribution devices is provided in the housing (1), and connection holes (141) for the busbar (5) to pass through are provided on the partitions (14).

2. A combined high-explosive power distribution device according to claim 1, characterized in that: The invention also includes a first combined box (2) and a second combined box (3), wherein the first combined box (2) and the second combined box (3) are distributed in an overlapping manner in the vertical direction, and each of the first combined box (2) and the second combined box (3) includes a main feed box (21), a plurality of branch feed boxes (22) and a control box (23), and a bus bar (5) is provided in each of the first combined box (2) and the second combined box (3), and the bus bar (5) is used to connect the main feed box (21), the branch feed box (22) and the control box (23), and each of the main feed boxes (21) is connected to a power supply, one of the power supplies supplies power to the first combined box (2), and the other power supply supplies power to the second combined box (3).

3. A combined high-explosive power distribution device according to claim 2, characterized in that: A connecting switch (8) is provided in the feeder box (22), the connecting switch (8) is electrically connected to the control box (23), the connecting switch (8) further comprises a moving contact (81) and a static contact (82), and the connecting switch (8) is capable of connecting and disconnecting the moving contact (81) and the busbar (5). One of the feeder boxes (22) is provided with a connecting terminal (9), and both ends of the connecting terminal (9) are respectively arranged in the feeder boxes (22) of the first combined box body (2) and the second combined box body (3). The connecting terminal (9) connects the static contact (82) in the first combined box body (2) and the busbar (5) of the second combined box body (3).

4. A combined high-explosive power distribution device according to claim 2, characterized in that: The housing (1) comprises a side plate (11) and a plurality of upper covers (12), wherein the upper covers (12) are detachably connected to the side plate (11), a sliding hole (142) is provided on the partition (14), and a plurality of indicator assemblies (6) are provided on the partition (14), wherein the indicator assemblies (6) comprise a first travel switch (61) arranged on a side of the partition (14) away from the upper cover (12), a first elastic member (62) arranged on a side of the partition (14) close to the upper cover (12), and a trigger rod (63) slidably arranged in the sliding hole (142). The trigger rod (63) slides in a direction close to or away from the upper cover (12), and the first elastic member (62) can push the trigger rod (63) in a direction close to the upper cover (12). The first travel switch (61) is electrically connected to the control box (23). When the first travel switch (61) is turned on, it outputs a closed signal of the upper cover (12), and when it is closed, it outputs a full-off signal. When the upper cover (12) is connected to the side plate (11), one end of the trigger rod (63) abuts against the upper cover (12), and the other end abuts against the first travel switch (61).

5. A combined high-explosive power distribution device according to claim 4, characterized in that: A sliding ring (144) is provided on the hole wall of the sliding hole (142), both ends of the sliding ring (144) extend out of the sliding hole (142), and the trigger rod (63) is slidably arranged in the sliding ring (144).

6. A combined high-explosive power distribution device according to claim 5, characterized in that: The trigger rod (63) comprises a sliding portion (631) and an extending portion (632), wherein the extending portion (632) is detachably connected to the sliding portion (631), and the extending portion (632) is arranged on a side of the sliding portion (631) close to the upper cover plate (12), and the sliding portion (631) is slidably arranged in the sliding hole (142).

7. A combined high-explosive power distribution device according to claim 6, characterized in that: The first elastic member (62) includes a return spring (621) sleeved on the sliding portion (631); a limiting ring (633) is provided at one end of the sliding portion (631) close to the extension portion (632); one end of the return spring (621) abuts against the limiting ring (633) and the other end abuts against the sliding ring (144).

8. A combined high-explosive power distribution device according to claim 4, characterized in that: The housing (1) further comprises a plurality of lower covers (13), the lower covers (13) being detachably connected to the side panels (11), each of the main feed box (21), the feeder box (22), and the control box (23) corresponding to an upper cover (12) and a lower cover (13), the partition (14) being provided with a mounting hole (143), the partition (14) being provided with a plurality of disconnecting assemblies (7), the disconnecting assemblies (7) comprising a linkage rod (71) slidingly arranged in the mounting hole (143), a second travel switch (72) arranged on a side of the partition (14) away from the lower cover (13), and a second elastic member (73) arranged on a side of the partition (14) close to the lower cover (13), the linkage rod (71) slidingly arranged in the mounting hole (143) The second elastic member (73) can drive the linkage rod (71) to slide in the direction close to or away from the lower cover (13). When the lower cover (13) is connected to the side plate (11), one end of the linkage rod (71) abuts against the lower cover (13) and the other end abuts against the second travel switch (72). The second travel switch (72) is electrically connected to the control cabinet. When the second travel switch (72) is turned on, it outputs a lower cover (13) closing signal. When the second travel switch (72) is turned off, it outputs an off signal to cut off the power supply to the box body with the lower cover (13) opened separately. When the first travel switch (61) is turned off, it outputs a full off signal to cut off the power supply to the first combined box body (2) or the second combined box body (3).

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