CN116826535B

CN116826535B - Safety distribution box

Info

Publication number: CN116826535B
Application number: CN202310732588.9A
Authority: CN
Inventors: 王彩庆; 李雪建; 谭青松
Original assignee: Yaxu Intelligent Technology Co ltd
Current assignee: Yaxu Intelligent Technology Co ltd
Priority date: 2023-06-19
Filing date: 2023-06-19
Publication date: 2023-12-08
Anticipated expiration: 2043-06-19
Also published as: CN116826535A

Abstract

The application relates to the field of distribution boxes, in particular to a safe distribution box which comprises a box body, wherein a power supply module used for being electrically connected with a bus is arranged in the box body, a circuit board electrically connected with the power supply module is also arranged in the box body, the power supply module is used for supplying power to the circuit board, a plurality of relays are electrically connected to the circuit board, a sub-level switch is electrically connected to the relays, the output end of the sub-level switch is output to electric equipment, and a communication module used for realizing remote communication and a remote control module used for being matched with the communication module to realize on-off of a remote control circuit are electrically connected to the circuit board. The application has the effect of reducing the switch cost.

Description

Safety distribution box

Technical Field

The application relates to the field of distribution boxes, in particular to a safety distribution box.

Background

The block terminal is a common distribution equipment, and the electric brake in the family is installed in the block terminal often, and domestic block terminal is for taking into account aesthetic property and security, often for inlaying the style of establishing in the wall, inlays the level and smooth that establishes can ensure the wall in the wall, guarantees pleasing to the eye, and cement wall itself possesses great resistance, can effectively strengthen insulating properties.

The switch for controlling the on-off of the corresponding circuit is arranged in the distribution box, the traditional switch adopts a breaker, the switch can be manually closed, the switch can be opened when overload is over-current, a controller is further added in the current switch along with intelligent lifting, whether the circuit, the load and the like are recovered to be normal or not is judged by the controller, the automatic switch-on of the circuit is realized, the monitoring of the circuit is realized by the chip to assist in the on-off control of the circuit, and the controller comprises the chip and a control device, so that the function is more perfect, but the cost is higher.

Disclosure of Invention

In order to solve the problem of high switching cost, the application provides a safety distribution box.

The application provides a safe distribution box, which adopts the following technical scheme:

the utility model provides a safe block terminal, includes the box, be provided with the power module that is used for being connected with the bus electricity in the box, still be provided with the circuit board of being connected with the power module electricity in the box, the power module is used for supplying power for the circuit board, the electricity is connected with a plurality of relays on the circuit board, the electricity is connected with sub-level switch on the relay, sub-level switch output is exported for the consumer, the electricity is connected with the communication module that is used for realizing remote communication and is used for cooperating the remote control module to realize remote control circuit break-make on the circuit board.

By adopting the technical scheme, the on-off control of the relays and the sub-level switches is simultaneously carried out through one circuit board, so that the number of chips is greatly reduced, and the cost is reduced; the power supply module is used for storing energy and supplying power to the circuit board, so that when the bus fluctuates, the power supply module can be used for releasing and compensating the electric energy stored by the power supply module when the bus power supply is reduced, or when the bus power supply is increased, the power supply module can be used for absorbing and storing the redundant electric energy, the influence of the bus fluctuation on the work of the circuit board is reduced, and the stability of the circuit board is improved; the remote on-off control of the relay by the user is realized through the communication module and the remote control module, and the operation is convenient.

Optionally, the extension leads to the groove has been run through to be seted up on the box, it is provided with the extension board to rotate in the box, the circuit board with the sub-level switch is all installed on the extension board, it is provided with the safety cover to extend to lead to the inslot to slide, the safety cover is used for covering the opening that leads to the groove with extending in, it is used for supplying the extension board axis of rotation to step down the groove to have been seted up on the safety cover.

Through adopting above-mentioned technical scheme, when user's consumer increases and needs more circuits, can pull out the safety cover, then install sub-level switch and circuit board at the opposite side of extension board for just increasing the degree of depth and having increased the quantity that can hold sub-level switch promptly, and carrying out the switching of different sub-level switches through the upset, reduced the probability that increases the quantity of sub-level switch and need enlarge the area of box, make inlay the required opening area of establishing in the wall unchanged, improved space utilization, make the box can adapt to the condition that needs different sub-level switch quantity, the scope that the box can adapt has been enlarged.

Optionally, when the protection cover slides to the inside of the box body to enclose the expansion board, the inner wall of the protection cover is attached to the outer ring side wall of the expansion board.

Through adopting above-mentioned technical scheme, when not needing more sub-level switches, the safety cover can contract on the box, surrounds the extension board spacing through the safety cover this moment for the extension board is difficult to take place to rotate, makes the extension board more stable, has improved the stability of extension board.

Optionally, slide on the safety cover tip and be provided with flexible conflict piece, the safety cover orientation when the box slides to the maximum distance outward, flexible conflict piece inner circle lateral wall is contradicted and is laminated on the extension board outer lane lateral wall, flexible conflict piece be used for towards the direction flexible outside the box in order to remove with the conflict of extension board.

By adopting the technical scheme, after the protective cover slides to the limit distance outside the box body, space is provided for the rotation of the expansion plate, and the protective cover is used for sealing protection, so that the probability of electric leakage to the outside is reduced, and the protective effect is achieved; when the expansion board needs to rotate, the telescopic conflict piece of steerable is flexible to be relieved the conflict spacing to expansion board outer lane lateral wall, and the expansion board alright rotate and switch sub-level switch this moment, and when the expansion board need not rotate, the accessible is flexible to conflict spacing on expansion board outer lane lateral wall to the rotation to the expansion board has been spacing, makes the expansion board more stable in sub-level switch's installation, has improved the stability of expansion board.

Optionally, be provided with on the box inner wall and press the pole, press the pole and be used for supplying the user to press, flexible jack has been seted up on the conflict piece, press sliding on the pole tip and be provided with and be used for inserting the jack is in order to drive flexible inserted bar of conflict piece, the inserted bar with press and be provided with the ejector piece between the pole, the ejector piece is used for with the inserted bar is towards inserting the direction of jack is flexible.

Through adopting above-mentioned technical scheme, when the user needs to rotate the extension board, pressing the flexible conflict piece of push rod control and flexible, having relieved the conflict spacing to the extension board, made things convenient for the operation greatly.

Optionally, the flexible piece that contradicts is slided and is provided with and is used for supplying the trigger piece that the inserted bar pushed up, still slide in the flexible piece that contradicts and be provided with the locking lever, offer on the safety cover inner wall and be used for supplying the locking lever inserts with the locking of flexible conflict piece position the locking groove has been offered on the locking lever, trigger the groove, be formed with on the trigger piece tip lateral wall and trigger the inclined plane, trigger the inclined plane and be used for contradicting trigger on the inslot wall in order to drive the locking lever is followed withdraw from in the locking groove.

Through adopting above-mentioned technical scheme, flexible conflict piece is in the same place through locking lever and safety cover locking, when the safety cover is in the outside slip in-process of towards the box, jack and inserted bar are aligned the time, the jack top moves the trigger piece under the effect of ejecting, the trigger piece moves the locking lever through triggering the inclined plane top and withdraws from the locking inslot, thereby the locking spacing of flexible conflict piece and safety cover has been relieved, the safety cover continues outwards to slide this moment, and flexible conflict piece and the spacing stay of inserted bar locking on extension board lateral wall, thereby make the spacing to the extension board, the rigid spacing of follow safety cover has been converted into the controllable spacing of flexible conflict piece.

Optionally, a locking elastic element is arranged between the inner wall of the locking rod and the inner wall of the telescopic interference element, and the locking elastic element is used for stretching along the direction that the locking rod is inserted into the locking groove.

Through adopting above-mentioned technical scheme, realized through locking the elastic component that the continuation of locking lever inserts in the locking inslot for locking between flexible conflict piece and the safety cover is spacing more stable, has reduced the spacing probability of having relieved between flexible conflict piece and the safety cover because of vibrations lead to the locking lever slip in the transportation, has improved the stability of flexible conflict piece.

Optionally, the quantity of trigger piece and pressing the pole is a plurality of, and is a plurality of trigger piece all is circumference evenly distributed with pressing the pole, a plurality of tooth's sockets have been seted up on pressing the pole, rotate in the box and be provided with the transfer line, the both ends of transfer line all be provided with tooth's socket engaged drive gear, the transfer gear at transfer line both ends meshes respectively on adjacent pressing the pole.

Through adopting above-mentioned technical scheme, through a plurality of flexible conflict pieces that trigger piece and are supporting, the atress that makes between flexible conflict piece and the expansion board is more even, has improved the spacing stability of flexible conflict piece to the expansion board, has realized a plurality of transmission relations between pressing the pole through transfer line and drive gear for the user only presses one and presses the pole, can drive a plurality of pressing the pole simultaneously and press down, releases a plurality of flexible conflict pieces simultaneously to the spacing of expansion board, makes the operation more convenient.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the cost is reduced, and the stability of the circuit board is improved; the remote on-off control of the relay by the user is realized through the communication module and the remote control module, and the operation is convenient.

2. The opening area required by embedding in the wall is unchanged, the space utilization rate is improved, the box body can adapt to the condition that the number of the switches of different sub-levels is required, and the range of the box body can be enlarged.

3. The extension board is more stable in the installation process of the sub-level switch, and the stability of the extension board is improved.

Drawings

Fig. 1 is a schematic view showing the overall structure of a safety distribution box according to embodiment 1 of the present application.

Fig. 2 is a schematic view showing an explosive structure of the inside of the case.

Fig. 3 is a schematic view showing the overall structure of a safety distribution box according to embodiment 2 of the present application.

FIG. 4 is a schematic view showing the structure of the relief groove.

Fig. 5 is a schematic cross-sectional view taken along line A-A in fig. 3.

Fig. 6 is an enlarged schematic view of the structure at B in fig. 5.

Fig. 7 is a schematic view showing the structure of the transmission rod.

Reference numerals illustrate: 1. a case; 11. extending the through groove; 12. an expansion board; 13. a protective cover; 14. a yielding through groove; 15. plugging the groove; 151. a plugging plate; 2. a power supply module; 21. a circuit board; 22. a relay; 23. a sub-level switch; 24. a communication module; 25. a remote control module; 3. a telescopic abutting member; 31. pressing a rod; 311. a telescopic slot; 312. pressing the groove; 313. an insertion groove; 314. a mounting groove; 315. a reset member; 32. a jack; 33. a rod; 34. an ejector; 4. a trigger block; 41. a locking lever; 411. a transmission groove; 412. a locking groove; 42. a locking groove; 43. a trigger slot; 44. triggering an inclined plane; 45. a locking elastic member; 5. tooth slots; 51. a transmission rod; 52. a transmission gear.

Detailed Description

The application is described in further detail below with reference to fig. 1-7.

The embodiment 1 of the application discloses a safety distribution box. Referring to fig. 1 and 2, the safety distribution box comprises a box body 1, the box body 1 comprises a box door used for opening and closing, the box door is opened to install electrical equipment into the box body 1, a main switch, a power supply module 2, a circuit board 21, a relay 22 and a sub-level switch 23 are installed in the box body 1, the input end of the main switch, which is inserted into the box body 1 from the outside, of the main switch is electrically connected, the input end of the power supply module 2 is electrically connected to the output end of the main switch, the power supply input end of the circuit board 21 is electrically connected to the output end of the power supply module 2, a chip used for processing circuit signals is contained on the circuit board 21, and the power supply module 2 is used for storing energy and supplying power for the circuit board 21.

Referring to fig. 1 and 2, an input end of a relay 22 is electrically connected to a circuit board 21, an output end of the relay 22 is electrically connected to an input end of a sub-level switch 23, and an output end of the sub-level switch 23 is electrically connected to a cable penetrating through a side wall of the case 1 to the outside to supply power to electric equipment. The circuit board 21 is further electrically connected with a communication module 24 and a remote control module 25, the communication module 24 is used for sending a status signal of the current on-off status of the circuit board 21 to a user, receiving a control signal sent by the user to realize remote communication, and the communication module 24 outputs a corresponding remote control signal to the remote control module 25 to perform on-off control on the relay 22 through the remote control module 25. In this embodiment, the chip may employ an MCU, the power module 2 may employ a capacitor, the communication module 24 may employ a bluetooth or WIFI module, and the sub-level switch 23 may employ a circuit breaker.

The implementation principle of the safety distribution box provided by the embodiment of the application is as follows: the output current and voltage of the bus are shunted or divided into the cables output by each sub-level switch 23 through the circuit board 21, mechanical closing and switching on are realized through the sub-level switches 23, automatic closing and switching on are realized through the circuit board 21 and the relays 22, the work of a plurality of relays 22 is processed through one chip at the same time, cost saving is realized, and the on-off of the relays 22 is controlled by a user remotely through the communication module 24, the chip and the remote control module 25.

Example 2:

unlike embodiment 1, referring to fig. 3 and 4, an extension through groove 11 is formed in the bottom wall of the case 1, an extension plate 12 is rotated in the case 1, and a rotation shaft of the extension plate 12 is inserted into the inner wall of the case 1. The circuit board 21 and the sub-level switch 23 are both installed on the expansion board 12, and rails for installing the sub-level switch 23 are both installed on the side walls of the two sides of the expansion board 12, and when the expansion board 12 rotates, the end of the expansion board 12 passes through the extending through groove 11 to the outside of the box body 1. The inner wall of the extending through groove 11 is provided with a protective cover 13 in a sliding manner, the protective cover 13 is used for covering the opening of the extending through groove 11 in the inner part, and the upper side wall of the protective cover 13 is provided with a yielding through groove 14 for yielding the rotating shaft of the extending plate 12 in a penetrating manner.

Referring to fig. 4, the inner wall of the yielding through groove 14 is provided with a plugging groove 15, a plugging plate 151 slides in the plugging groove 15, the whole plugging plate 151 is located in the plugging groove 15, when the protective cover 13 slides to the limit position towards the outside of the box body 1, the plugging plate 151 is used for sliding out to plug the opening of the yielding through groove 14, a bump is fixedly connected to the inner wall of the box body 1, a rotating shaft of the expansion plate 12 is inserted in the bump, at this moment, the plugging plate 151 is in abutting seal with the side wall of the bump, a plugging elastic piece is mounted between the side wall of the plugging plate 151 and the inner wall of the plugging groove 15, one end of the plugging elastic piece is fixedly connected to the side wall of the end part of the plugging plate 151 located in the plugging groove 15, the other end of the plugging elastic piece is fixedly connected to the bottom wall of the plugging groove 15 facing the opening surface of the plugging groove, and the plugging elastic piece stretches out and stretches along the direction of the plugging groove 15 to plug the yielding through groove 14 when sliding out of the plugging plate 151.

Referring to fig. 3 and 4, when the protective cover 13 slides toward the case 1 to a limit distance, the expansion plate 12 is surrounded, the inner wall of the inner ring of the protective cover 13 abuts against the outer side wall of the expansion plate 12, and then the protective cover 13 is fixedly connected to the case 1 by bolts.

Referring to fig. 3, four telescopic interference pieces 3 are slid on the end of the protective cover 13 near the door, the four telescopic interference pieces 3 are respectively located at four corners of the protective cover 13, and the telescopic interference pieces 3 slide toward a direction near or far from the door. When the protection cover 13 slides to the maximum distance outside the box body 1, the four telescopic conflict pieces 3 slide along with the sliding of the protection cover 13 towards the direction outside the box body 1 until the four telescopic conflict pieces 3 are all in conflict fit on the outer ring side wall of the expansion plate 12 towards the side wall of the expansion plate 12, the protection cover 13 is fixed on the box body 1 through bolts, and the telescopic conflict pieces 3 are used for stretching towards the direction outside the box body 1 to release the conflict with the expansion plate 12.

Referring to fig. 5 and 6, four telescopic grooves 311 are formed in the side wall of the protective cover 13 facing the door, the telescopic abutting pieces 3 are inserted into the telescopic grooves 311, and the cross-sectional diameter of the end of each telescopic abutting piece 3, which is close to the door, is larger than the diameter of the opening surface of the telescopic groove 311.

Referring to fig. 3 and 6, a pressing groove 312 is formed in the inner wall of the case 1, the pressing groove 312 is formed to extend in the sliding direction of the protective cover 13, a pressing rod 31 is slid in the pressing groove 312, the pressing rod 31 slides in the opening direction of the pressing groove 312, and the end of the pressing rod 31 extends out of the pressing groove 312 to be pressed by a user. The end of the telescopic abutting piece 3 in the telescopic groove 311 is provided with an inserting hole 32, the inserting hole 32 is formed in the side wall of the telescopic abutting piece 3 facing the corresponding pressing rod 31, the inner wall of the pressing groove 312 is provided with an inserting groove 313, the inserting groove 313 penetrates to the inner wall of the box body 1, and the inserting groove 313 is used for corresponding to the inserting hole 32.

Referring to fig. 6, a mounting groove 314 is formed in the end of the push rod 31, the mounting groove 314 is formed in the side wall of the push rod 31 facing the corresponding telescopic contact member 3, the mounting groove 314 corresponds to the insertion groove 313, the insertion rod 33 slides in the mounting groove 314, the insertion rod 33 penetrates through the insertion groove 313 and is inserted into the insertion hole 32 to drive the telescopic contact member 3 to slide, an ejector 34 is mounted between the side wall of the end of the insertion rod 33 and the bottom wall of the mounting groove 314, one end of the ejector 34 is fixedly connected to the side wall of the end of the insertion rod 33 located in the mounting groove 314, the other end of the ejector 34 is fixedly connected to the bottom wall of the mounting groove 314 facing the opening surface of the ejector 34, and the ejector 34 stretches and contracts along the direction of inserting the insertion rod 33 into the insertion hole 32.

Referring to fig. 3 and 6, in the present embodiment, the telescopic supporting member 3 is L-shaped and clamps the side wall at the corner of the expansion board 12 therebetween, the telescopic supporting member 3 is further provided with a transmission slot 411, the transmission slot 411 is communicated with the jack 32, the extending direction of the transmission slot 411 is perpendicular to the extending direction of the jack 32, the triggering block 4 slides in the transmission slot 411, the telescopic supporting member 3 is further provided with a locking slot 412, and the locking slot 412 and the jack 32 are respectively communicated with two ends of the transmission slot 411.

Referring to fig. 6, the side wall of the end portion of the trigger block 4 inserted into the insertion hole 32 is inclined, and the inclined side wall of the trigger block 4 is inclined in a direction away from the transmission slot 411 as it is farther from the opening surface of the insertion hole 32, for guiding the trigger block 4 to slide in a direction of inserting the lock slot 412 when the insert rod 33 is pushed. The locking groove 412 is slidably provided with a locking lever 41, and the inner wall of the telescopic groove 311 is provided with a locking groove 42 for inserting the locking lever 41, and the locking lever 41 is inserted into the locking groove 42 to lock the positional relationship between the telescopic interference member 3 and the protection cover 13.

Referring to fig. 6, a trigger groove 43 is formed on a sidewall of the locking lever 41 facing the driving groove 411, a trigger slope 44 is formed on an end sidewall of the trigger block 4 inserted into the locking groove 412, the trigger slope 44 is inclined in a direction that the further from the driving groove 411, the further from the locking groove 42, the trigger slope 44 is used to abut on an inner wall of the trigger groove 43, which is far from the locking groove 42, so as to guide the locking lever 41 to withdraw from the locking groove 42.

Referring to fig. 6, a restoring member 315 is mounted between the end of the pressing rod 31 and the inner wall of the pressing groove 312, one end of the restoring member 315 is fixedly connected to the side wall of the end of the pressing rod 31 located in the pressing groove 312, the other end of the restoring member 315 is fixedly connected to the bottom wall of the pressing groove 312 facing the opening surface of the pressing rod, and the restoring member 315 stretches and contracts in the direction of sliding the pressing rod 31 outside the pressing groove 312. A locking elastic piece 45 is installed between the inner wall of the locking rod 41 and the inner wall of the locking groove 412, one end of the locking elastic piece 45 is fixedly connected to the side wall of the end part of the locking rod 41 positioned in the locking groove 412, the other end of the locking elastic piece 45 is fixedly connected to the bottom wall of the locking groove 412 facing the opening surface of the locking elastic piece 45, and the locking elastic piece 45 is used for stretching along the direction that the locking rod 41 is inserted into the locking groove 42. In this embodiment, the return member 315 and the locking elastic member 45 can be springs.

Referring to fig. 3 and 6, the number of the trigger blocks 4 and the pressing rods 31 is four, the four trigger blocks 4 and the pressing rods 31 are uniformly distributed in the circumferential direction, and the trigger blocks 4, the pressing rods 31 and the telescopic collision pieces 3 are in one-to-one correspondence. However, only one pressing groove 312 of the four pressing bars 31 penetrates through the side wall of the box body 1 to the outside, and the other three pressing grooves 312 are all completely positioned inside the side wall of the box body 1, and only one pressing bar 31 penetrates to the outside of the side wall of the box body 1 for pressing by a user.

Referring to fig. 5 and 7, a plurality of tooth grooves 5 are formed in the side wall of the pressing rod 31, the tooth grooves 5 are uniformly distributed along the sliding direction of the pressing rod 31, a transmission rod 51 is rotated in the side wall of the box body 1, the length direction of the transmission rod 51 extends from the pressing rod 31 to the position of the adjacent pressing rod 31, both ends of the transmission rod 51 are fixedly connected with transmission gears 52, the transmission gears 52 are used for being meshed with the tooth grooves 5, the transmission gears 52 at both ends of the transmission rod 51 are respectively meshed with the adjacent pressing rod 31, and in the embodiment, the transmission gears 52 are straight gears.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. A safe block terminal, its characterized in that: the intelligent power supply device comprises a box body (1), wherein a power supply module (2) used for being electrically connected with a bus is arranged in the box body (1), a circuit board (21) electrically connected with the power supply module (2) is further arranged in the box body (1), the power supply module (2) is used for supplying power to the circuit board (21), a plurality of relays (22) are electrically connected to the circuit board (21), a sub-level switch (23) is electrically connected to the relays (22), the output end of the sub-level switch (23) is output to electric equipment, and a communication module (24) used for realizing remote communication and a remote control module (25) used for being matched with the communication module (24) to realize on-off of a remote control circuit are electrically connected to the circuit board (21);

an extending through groove (11) is formed in the box body (1) in a penetrating mode, an expansion plate (12) is rotationally arranged in the box body (1), the circuit board (21) and the sub-level switch (23) are both arranged on the expansion plate (12), a protective cover (13) is arranged in the extending through groove (11) in a sliding mode, the protective cover (13) is used for covering an opening of the extending through groove (11) in the protective cover, and a yielding through groove (14) for yielding a rotating shaft of the expansion plate (12) is formed in the protective cover (13);

when the protective cover (13) slides into the box body (1) to surround the expansion plate (12), the inner wall of the protective cover (13) is attached to the outer ring side wall of the expansion plate (12);

the utility model discloses a flexible expansion board, including expansion board (12), safety cover (13), flexible conflict piece (3) are provided with to slide on safety cover (13) tip, safety cover (13) orientation when box (1) is slided to the maximum distance outward, flexible conflict piece (3) inner circle lateral wall conflict laminating is in on expansion board (12) outer lane lateral wall, flexible conflict piece (3) are used for towards the direction outside box (1) flexible in order to relieve with the conflict of expansion board (12).

2. A safety distribution box according to claim 1, characterized in that: be provided with on box (1) inner wall and press pole (31), press pole (31) and be used for supplying the user to press, jack (32) have been seted up on flexible conflict piece (3), slide on pressing pole (31) tip and be provided with and be used for inserting jack (32) are in order to drive flexible inserted bar (33) of flexible conflict piece (3), inserted bar (33) with be provided with between pressing pole (31) and pop out piece (34), pop out piece (34) be used for with inserted bar (33) are towards inserting the direction of jack (32) is flexible.

3. A safety distribution box according to claim 2, characterized in that: the utility model discloses a trigger piece, including flexible conflict piece (3), flexible conflict piece (3) are provided with in the slip and are used for supplying trigger piece (4) that inserted bar (33) held up, still slide in flexible conflict piece (3) and be provided with locking lever (41), offer on safety cover (13) inner wall and be used for supplying locking lever (41) are inserted in order to lock locking slot (42) in flexible conflict piece (3) position, trigger slot (43) have been offered on locking lever (41), be formed with on trigger piece (4) tip lateral wall and trigger inclined plane (44), trigger inclined plane (44) are used for contradicting on trigger slot (43) inner wall in order to drive locking lever (41) follow withdraw from in locking slot (42).

4. A safety distribution box according to claim 3, characterized in that: a locking elastic piece (45) is arranged between the inner wall of the locking rod (41) and the inner wall of the telescopic abutting piece (3), and the locking elastic piece (45) is used for stretching along the direction that the locking rod (41) is inserted into the locking groove (42).

5. A safety distribution box according to claim 3, characterized in that: the number of the trigger blocks (4) and the number of the pressing rods (31) are multiple, the trigger blocks (4) and the pressing rods (31) are uniformly distributed in the circumferential direction, a plurality of tooth grooves (5) are formed in the pressing rods (31), a transmission rod (51) is rotationally arranged in the box body (1), transmission gears (52) meshed with the tooth grooves (5) are arranged at two ends of the transmission rod (51), and the transmission gears (52) at two ends of the transmission rod (51) are respectively meshed with adjacent pressing rods (31).