Safe and explosion-proof distribution box

Abstract

The invention relates to a safe and explosion-proof distribution box, which comprises a box body, a damping steel frame is arranged in the box body, the damping steel frame is used for surrounding components in the box, and a buffer elastic piece is arranged between the inner wall of the box body and the damping steel frame. If the distribution box is collided, the box body firstly bears and absorbs a part of impact force, the buffer elastic piece absorbs the impact force through deformation, and the damping steel frame finally resists the impact force, so that the components in the box are fully protected through the three-layer structure, and the possibility that the components in the box are damaged by external collision is reduced; and the possibility of electric leakage and short circuit of the box body is reduced.

Description

Technical Field

[0001] The present application relates to the field of distribution boxes, and in particular to a safe and explosion-proof distribution box. Background Art

[0002] Distribution boxes are usually used to transmit and distribute electricity. With the accelerated urbanization process, outdoor distribution boxes are increasingly widely used. Outdoor distribution boxes face many challenges while ensuring power supply stability. Especially when the distribution box is set up in areas with heavy traffic or frequent construction, the box may be damaged due to vehicle collisions, and even lead to leakage, short circuit and other problems, which will not only affect the power supply, but also bring great safety hazards to maintenance personnel.

[0003] In the prior art, the distribution box usually adopts the method of selecting a material with better performance as the box shell to improve the structural strength of the box shell, thereby improving the impact resistance of the distribution box shell. However, relying solely on enhancing the hardness of the shell cannot completely resist the destructive force caused by a strong collision. Summary of the invention

[0004] In order to solve the technical problem in the prior art that relying solely on enhancing the hardness of the shell cannot completely resist the destructive force caused by a strong collision, the present application provides a safe and explosion-proof distribution box.

[0005] The present application provides a safe and explosion-proof distribution box, which adopts the following technical solution: A safe and explosion-proof distribution box comprises a box body, wherein a shock-absorbing steel frame is arranged in the box body, the shock-absorbing steel frame is used to surround components in the box, and a buffer elastic member is arranged between the inner wall of the box body and the shock-absorbing steel frame.

[0006] By adopting the above technical solution, if the distribution box is hit, the box body will first bear and absorb a part of the impact force, and the remaining impact force will be transmitted to the buffer elastic part. The buffer elastic part absorbs the impact force by deformation and transmits the remaining impact force to the shock-absorbing steel frame, which will perform the final resistance. The three-layer structure fully protects the components inside the box, reduces the possibility of damage to the components inside the box caused by external impact, and reduces the possibility of leakage and short circuit of the box.

[0007] Optionally, a rubber cushion layer is provided on the inner wall of the box body, and a rubber layer is formed on the outer surface of the buffer elastic member through a vulcanization process.

[0008] By adopting the above technical solution, the rubber cushion layer is elastic and can absorb and disperse part of the vibration and impact force when the distribution box is hit, thereby achieving a shock-absorbing and buffering effect. In addition, the rubber cushion layer and the rubber layer are insulating. If a vehicle accidentally collides with the distribution box and causes the distribution box to be concave and contact the wires, the rubber cushion layer and the rubber layer can act as an insulator to prevent the distribution box from leaking electricity and causing harm to personnel.

[0009] Optionally, the shock-absorbing steel frame is provided with an emergency trip assembly and an electric switch for controlling the on and off of the circuit in the box, and the emergency trip assembly includes an active rod arranged on the shock-absorbing steel frame, and the active rod is used to turn off the electric switch.

[0010] By adopting the above technical solution, when a vehicle accidentally collides with the distribution box and causes the shock-absorbing steel frame to be concavely deformed, the active rod is driven to move inside the shock-absorbing steel frame and turn off the switch. If the deformation of the shock-absorbing steel frame does not damage the wires, the emergency trip assembly plays a preventive role. If the deformation of the shock-absorbing steel frame damages the wires and causes leakage or short circuit, the emergency trip assembly can reduce the possibility of fire and explosion of the distribution box.

[0011] Optionally, the emergency trip assembly also includes a transmission rod slidably arranged on the shock-absorbing steel frame, the number of the active rods is multiple, the transmission rod is provided with multiple transmission grooves for inserting the movable ends of the active rods, and the inner wall of the transmission groove is inclined to form a transmission slope, and the transmission slope is used for the active rod to contact, so as to drive the transmission rod to push the electric switch to close the circuit breaker.

[0012] By adopting the above technical solution, through the transmission connection between the active rod and the transmission rod, the forces in the collision direction received by the four sides of the shock-absorbing steel frame are converted into forces in the direction of closing the power switch, so that the shock-absorbing steel frame can achieve power closing in a short time after being deformed by the collision. The direction of the force is changed by the transmission inclined surface. The structure is simple but the transmission is fast and stable.

[0013] Optionally, the inner wall of the transmission groove includes groove side walls, and the two groove side walls arranged opposite to each other are fitted and clamped on the side wall of the end of the active rod.

[0014] By adopting the above technical solution, the movement of the active rod can be limited by the groove side wall fitting and clamping the end side wall of the active rod, so that even if the active rod is deformed by collision, it can still move in the transmission groove and cooperate with the transmission inclined surface without slipping out of the transmission groove.

[0015] Optionally, a guide sleeve is provided on the electric switch, a guide cone groove is provided on the guide sleeve, the inner wall of the guide cone groove is inclined, and the inclined guide cone groove is used for the transmission rod to push to close the electric switch.

[0016] By adopting the above technical solution, the movement of the transmission rod is guided and limited by the guide sleeve. Even if the vehicle collision causes the movement of the active rod and the transmission rod to be deformed, the transmission rod can still be smoothly inserted into the guide sleeve and the electric switch can be turned off.

[0017] Optionally, the emergency trip assembly also includes a connecting block, a locking structure and an unlocking structure, the locking structure is used to lock the connection between the connecting block and the power switch, and the unlocking structure is used to unlock and disconnect the connecting block from the power switch when the power switch is turned off, the connecting block is electrically connected to the live wire, and the connecting block is electrically connected to the incoming line terminal of the power switch.

[0018] By adopting the above technical solution, when the power switch is turned off, the incoming line end of the power switch is still energized. Through the cooperation of the connecting block, the locking structure and the unlocking structure, when the power switch is turned off, the connecting block and the live wire are detached from the power switch together, thereby completely cutting off the power of the power switch.

[0019] Optionally, the locking structure includes a locking block arranged on the power switch, the locking block is provided with a locking groove, a locking block is slidably arranged in the locking groove, a locking elastic member is provided between the locking block and the inner wall of the locking groove, the locking elastic member is used to push the locking block to move out of the locking groove, a locking groove is provided on the connecting block, and the locking block is clamped on the inner wall of the locking groove.

[0020] By adopting the above technical solution, the locking block is pushed to move out of the locking groove by the locking elastic member so that the locking block is clamped on the inner wall of the locking groove. The structure is simple, and the connecting block and the electric switch can be locked, and the connection is stable.

[0021] Optionally, the unlocking structure includes an unlocking active rod and an unlocking transmission rod, the unlocking active rod is arranged on the transmission rod, the connecting block is penetrated by a sliding hole connected to the locking groove, the unlocking transmission rod is slidably arranged in the sliding hole, and an unlocking inclined surface is inclined on the unlocking transmission rod, and the unlocking inclined surface is used for the unlocking active rod to contact with it, so as to drive the unlocking transmission rod to push the locking block back into the locking groove, so as to release the interference and engagement between the locking block and the inner wall of the locking groove.

[0022] By adopting the above technical solution, when the transmission rod moves downward to turn off the power switch, the unlocking active rod pushes the unlocking transmission rod to move, and the unlocking transmission rod pushes the locking block into the locking groove, thereby unlocking the locking block and the locking groove, and then unlocking the connecting block and the power switch. The structure is simple, but the transmission is fast and stable.

[0023] Optionally, an energy storage elastic member is provided on the power switch, and a receiving groove is provided on the connecting block, the receiving groove is used to receive the energy storage elastic member, and the energy storage elastic member is used to eject the connecting block in a direction away from the power switch.

[0024] By adopting the above technical solution, the energy storage elastic member can push the connecting block to fall after the connecting block and the electric switch are unlocked, thereby accelerating the response speed and further reducing the possibility of vehicle collision affecting the incoming line terminal of the electric switch.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. If the distribution box is hit, the box body will bear and absorb part of the impact force first, the buffer elastic part will absorb the impact force by deformation, and the shock-absorbing steel frame will provide the final resistance. The three-layer structure fully protects the components inside the box, reducing the possibility of damage to the components inside the box caused by external impact, and reducing the possibility of leakage and short circuit of the box; 2. When a vehicle accidentally hits the distribution box and causes the shock-absorbing steel frame to deform inward, the emergency trip assembly is used to turn off the switch to reduce the possibility of fire and explosion of the distribution box; 3. Through the cooperation of the connecting block, the locking structure and the unlocking structure, when the power switch is turned off, the connecting block and the live wire are separated from the power switch together, so that the power switch is completely cut off. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of Example 1 of the present application.

[0027] Figure 2 is along Figure 1 Section view along line AA.

[0028] Figure 3 It is a schematic diagram of the structure of Example 2 of the present application (the box is not shown).

[0029] Figure 4 It is a structural schematic diagram of the transmission rod, the electric switch and the connecting block in Example 2 of the present application.

[0030] Figure 5 is along Figure 4 Cross-sectional view along line BB.

[0031] Figure 6 is along Figure 4 Sectional view along the CC line.

[0032] Description of reference numerals: 1, box body; 11, inspection door; 2, shock-absorbing steel frame; 21, protection rod; 22, mounting rod; 23, transmission rod sleeve; 3, buffer elastic member; 31, rubber layer; 4, rubber cushion layer; 5, emergency trip assembly; 51, active rod; 52, transmission rod; 521, transmission groove; 522, transmission inclined surface; 523, groove side wall; 524, spring; 53, locking structure; 54, unlocking structure; 541, unlocking active rod; 542 , unlocking transmission rod; 543, unlocking inclined plane; 6, electric switch; 61, locking block; 611, locking groove; 612, locking block; 613, locking elastic member; 614, locking inclined plane; 62, energy storage elastic member; 63, guide rod sleeve; 64, guide rod; 7, guide sleeve; 71, guide cone groove; 8, mounting plate; 9, connecting block; 91, locking groove; 92, sliding hole; 93, receiving groove; 94, socket; 95, metal block; 10, metal connecting member. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-6 This application is described in further detail.

[0034] Embodiment 1: Reference Figure 1 The embodiment of the present application discloses a safe and explosion-proof distribution box, including a box body 1, a shock-absorbing steel frame 2 is provided inside the box body 1, and the shock-absorbing steel frame 2 is a hollow rectangular parallelepiped formed by welding a plurality of square steel pipes. The shock-absorbing steel frame 2 is used to surround the components inside the box, and the shock-absorbing steel frame 2 is fixedly connected to the bottom wall of the box body 1. A mounting plate 8 for mounting the components inside the box is fixed on the shock-absorbing steel frame 2 by welding or other means, and a power switch 6, various electrical components and electrical circuits are fixed on the mounting plate 8, and the power switch 6 is fixed in the middle and upper part of the mounting plate 8. An inspection door 11 is rotatably installed or push-pull installed on the box body 1. The inspection door 11 is located in the middle and upper part of the box body 1, corresponding to the position of the power switch 6, so that the operator can open the inspection door 11 for daily maintenance operations without opening the entire box cover. In order to better adapt to various severe weather conditions, all wire inlet holes are equipped with waterproof sealing rings and connected with waterproof plugs to ensure that rainwater will not enter the box body 1 and cause malfunctions.

[0035] Reference Figure 2 A plurality of buffer elastic members 3 are arranged in the box body 1, a rubber cushion layer 4 is formed on the inner wall of the box body 1 through a vulcanization process, one end of the buffer elastic member 3 is fixed on the shock-absorbing steel frame 2, and the other end is in conflict with the rubber cushion layer 4. In this embodiment, the buffer elastic member 3 is a buffer spring, and a rubber layer 31 is vulcanized on the outer surface of the buffer spring.

[0036] The implementation principle of this embodiment is: when the distribution box is hit, the box body 1 first bears and absorbs a part of the impact force, the rubber cushion layer 4 on the inner wall of the box body 1 absorbs and disperses a part of the vibration and impact force, and the remaining impact force is transmitted to the buffer elastic member 3. The buffer elastic member 3 absorbs the impact force by deformation and transmits the remaining impact force to the shock-absorbing steel frame 2, which performs the final resistance.

[0037] Embodiment 2: Reference Figure 3 , which is different from the embodiment 1, further comprises an emergency trip assembly 5 fixedly mounted on the shock-absorbing steel frame 2, the emergency trip assembly 5 comprises an active rod 51, and the shock-absorbing steel frame 2 comprises a protection rod 21. There are four protection rods 21, and the four protection rods 21 are respectively fixedly connected between adjacent square steel pipes of the shock-absorbing steel frame 2, and the four protection rods 21 are evenly distributed on the sides and extend in the transverse direction, and there are also four active rods 51, and the active rods 51 correspond to the protection rods 21 one by one, and the active rods 51 are "L"-shaped rods, one end of the active rod 51 is fixedly connected to the corresponding protection rod 21, and the other end is a movable end.

[0038] Reference Figure 3 The emergency trip assembly 5 further includes a transmission rod 52, and the shock-absorbing steel frame 2 further includes a mounting rod 22. The mounting rod 22 is fixedly connected between adjacent square steel pipes at the top of the shock-absorbing steel frame 2, and a transmission rod sleeve 23 is fixed on the lower end surface of the mounting rod 22, and the transmission rod sleeve 23 extends downward along the gravity direction.

[0039] Reference Figure 4 and Figure 5 A spring 524 is fixed in the transmission rod sleeve 23, one end of the spring 524 is fixedly connected to the transmission rod 52, and the other end of the spring 524 is fixedly connected in the transmission rod sleeve 23, and the spring 524 is extended and retracted along the direction of gravity, so that the transmission rod 52 is slidably installed in the transmission rod sleeve 23.

[0040] Reference Figure 4 and Figure 5 A plurality of transmission grooves 521 are arranged on the sides of the transmission rod 52 and are staggered along the length direction of the transmission rod 52 . The plurality of transmission grooves 521 correspond to the four active rods 51 one by one, and the active ends of the active rods 51 are inserted into the transmission grooves 521 .

[0041] Reference Figure 4 and Figure 5The transmission groove 521 includes a transmission slope 522 and a groove side wall 523. The transmission slope 522 is formed on the inner wall of the transmission groove 521 at the bottom. The transmission slope 522 is inclined in the direction of going upward as it goes deeper into the transmission groove 521. The groove side wall 523 serves as several inner walls of the transmission groove 521 other than the transmission slope 522. The transmission slope 522 and multiple groove side walls 523 enclose the transmission groove 521. The transmission slope 522 is used to slide with the active end of the active rod 51. When the active rod 51 is in the initial position, the active end of the active rod 51 contacts three of the groove side walls 523, thereby ensuring that the active rod 51 is inserted into the transmission groove 521. The two opposite groove side walls 523 fit and clamp the active rod 51 so that the active rod 51 can only move in the up and down direction. The two oppositely arranged groove side walls 523 are used to guide and limit the movement of the active rod 51.

[0042] Reference Figure 4 A guide rod sleeve 63 is fixed on the side wall of the electric switch 6, and a guide rod 64 is slidably installed in the guide rod sleeve 63. The guide rod sleeve 63 extends downward along the direction of gravity, and a telescopic spring is fixed in the guide rod sleeve 63. One end of the telescopic spring is fixedly connected to the guide rod 64, and the other end of the telescopic spring is fixedly connected in the guide rod sleeve 63. The telescopic spring is telescopic along the direction of gravity, so that the guide rod 64 is slidably installed in the guide rod sleeve 63. The guide rod 64 is an L-shaped rod, and a guide sleeve 7 is fixed on the end of the guide rod 64. The guide sleeve 7 is located above the switch of the electric switch 6 and contacts the switch. A guide cone groove 71 is provided on the guide sleeve 7, and the inner wall of the guide cone groove 71 is inclined. The inner wall of the guide cone groove 71 is funnel-shaped, and the opening surface size of the guide cone groove 71 is larger than the end size of the transmission rod 52, so that the end of the transmission rod 52 can be inserted into the guide cone groove 71 and contact the side wall of the guide cone groove 71 during the movement.

[0043] Reference Figure 4 and Figure 6 The emergency trip assembly 5 further includes a connection block 9, a locking structure 53 and an unlocking structure 54. The locking structure 53 and the unlocking structure 54 are provided in two groups, and the two groups of locking structures 53 and unlocking structures 54 are symmetrically arranged. The connection block 9 is provided with a socket 94 for inserting the live wire, and a metal connector 10 is fixed on the inlet end of the switch 6. When the connection block 9 and the switch 6 are fixedly connected through the locking structure 53, the metal connector 10 is electrically connected to the live wire inserted into the socket 94. The connection block 9 is provided with a slot hole connected to the socket 94, and a metal block 95 is installed in the slot hole. When the metal connector 10 is inserted into the socket, the side wall of the metal connector 10 conflicts with the side wall of the metal block 95. In this way, even if the live wire does not contact the metal connector 10 after being inserted into the socket 94, it can still be electrically connected by relying on the metal block 95. The connection block 9 is made of insulating material as a whole.

[0044] Reference Figure 6 The locking structure 53 includes a locking block 61 fixed on the bottom wall of the electric switch 6, a locking groove 611 is provided on the side wall of the locking block 61, a locking block 612 and a locking elastic member 613 are installed in the locking groove 611, and the locking elastic member 613 is a compression spring, one end of the locking elastic member 613 is fixed on the bottom wall of the locking groove 611, and the other end is fixedly connected to the locking block 612, and the locking elastic member 613 is extended and retracted in the direction of pushing the locking block 612 out of the locking groove 611, so that the locking block 612 is slidably assembled in the locking groove 611. A locking groove 91 with an L-shaped cross section is provided on the connecting block 9, and the locking groove 91 is configured to be constricted, that is, the cross-sectional size inside the locking groove 91 is larger than the size of the opening surface of the locking groove 91, and the locking block 612 is abutted and clamped on the inner wall of the locking groove 91 close to the opening surface. The locking block 612 includes a locking inclined surface 614 , which is inclined in a direction where the locking block 612 goes deeper into the locking groove 611 and further away from the electric switch 6 .

[0045] Reference Figure 4 and Figure 6 The unlocking structure 54 includes an unlocking active rod 541 and an unlocking transmission rod 542. One end of the unlocking active rod 541 is fixed to the side wall of the transmission rod 52, and the other end is used to abut against the unlocking transmission rod 542. A sliding hole 92 communicating with the locking groove 91 is provided through the connecting block 9. The unlocking transmission rod 542 slides in the sliding hole 92. The sliding hole 92 points to the locking block 612, so that the unlocking transmission rod 542 slides in the direction of pushing the locking block 612 to retreat into the locking groove 611. One end of the unlocking transmission rod 542 abuts against the locking block 612, and the other end is inclined to form an unlocking inclined surface 543. The unlocking inclined surface 543 is inclined in a direction that is farther away from the locking block 612 and farther away from the unlocking active rod 541. The unlocking inclined surface 543 is used for the unlocking active rod 541 to abut against.

[0046] Reference Figure 6 An energy storage elastic member 62 is fixed on the bottom wall of the electric switch 6 , and the energy storage elastic member 62 is a compression spring. An accommodating groove 93 is opened on the connecting block 9 , and the accommodating groove 93 is used to accommodate the energy storage elastic member 62 .

[0047] The implementation principle of this embodiment is: when installing the connecting block 9, first move the connecting block 9 close to the power switch 6. At this time, the top wall of the connecting block 9 contacts the locking block 612 and pushes the locking block 612 into the locking groove 611 until the top wall of the connecting block 9 contacts the bottom wall of the power switch 6. The locking elastic member 613 pushes the locking block 612 to move out of the locking groove 611 until the locking block 612 contacts and engages with the inner wall of the locking groove 611, and the connecting block 9 and the power switch 6 are fixedly connected.

[0048] When the distribution box is in use, if the protection rod 21 is deformed by collision, the active rod 51 is driven to move toward the transmission rod 52, and the active end of the active rod 51 is inserted into the transmission groove 521 and slides along the transmission inclined surface 522, thereby driving the transmission rod 52 to move toward the power switch 6, and the transmission rod 52 is inserted into the guide sleeve 7 and continues to move until the power switch 6 is turned off. At this time, the active end of the active rod 51 conflicts with the groove side wall 523, and the transmission rod 52 stops moving; while the transmission rod 52 moves downward, the release The locking active rod 541 moves with the transmission rod 52, and the unlocking active rod 541 slides along the unlocking inclined surface 543, thereby pushing the unlocking transmission rod 542 to move toward the locking groove 91, and the unlocking transmission rod 542 pushes the locking block 612 to retreat into the locking groove 611, thereby unlocking the locking block 612 and the contact connection with the inner wall of the locking groove 91, and the connecting block 9 is separated from the power switch 6 under the action of gravity and the push of the energy storage elastic member 62, and the live wire is separated from the metal connecting member 10, thereby achieving complete power off of the power switch 6.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A safe explosion-proof distribution box, characterized by: The invention comprises a box body (1), wherein a shock-absorbing steel frame (2) is arranged inside the box body (1), and the shock-absorbing steel frame (2) is used to surround the components inside the box, and a buffer elastic member (3) is arranged between the inner wall of the box body (1) and the shock-absorbing steel frame (2).

2. The safe explosion-proof distribution box according to claim 1 is characterized in that: A rubber cushion layer (4) is provided on the inner wall of the box body (1), and a rubber layer (31) is formed on the outer surface of the buffer elastic member (3) through a vulcanization process.

3. The safe and explosion-proof distribution box according to claim 1 is characterized in that: An emergency trip assembly (5) and an electric switch (6) for controlling the on and off of a circuit in the box (1) are arranged on the shock-absorbing steel frame (2); the emergency trip assembly (5) comprises an active rod (51) arranged on the shock-absorbing steel frame (2); the active rod (51) is used to switch off the electric switch (6).

4. The safety and explosion-proof distribution box according to claim 3 is characterized in that: The emergency trip assembly (5) further comprises a transmission rod (52) slidably arranged on the shock-absorbing steel frame (2); the number of the active rods (51) is plural; the transmission rod (52) is provided with a plurality of transmission grooves (521) for inserting the movable ends of the active rods (51); the inner walls of the transmission grooves (521) are inclined with transmission slopes (522); the transmission slopes (522) are used for the active rods (51) to abut against, so as to drive the transmission rod (52) to push the electric switch (6) to close the switch.

5. The safety and explosion-proof distribution box according to claim 4 is characterized in that: The inner wall of the transmission groove (521) comprises groove side walls (523), and the two groove side walls (523) arranged opposite to each other are fitted and clamped on the end side walls of the active rod (51).

6. The safety and explosion-proof distribution box according to claim 4 is characterized in that: The electric switch (6) is provided with a guide sleeve (7), the guide sleeve (7) is provided with a guide cone groove (71), the inner wall of the guide cone groove (71) is arranged inclined, and the inclined guide cone groove (71) is used for the transmission rod (52) to push and close the electric switch (6).

7. The safety and explosion-proof distribution box according to claim 4 is characterized in that: The emergency trip assembly (5) further comprises a connection block (9), a locking structure (53) and an unlocking structure (54); the locking structure (53) is used to connect and lock the connection block (9) and the electric switch (6); the unlocking structure (54) is used to unlock and disconnect the connection block (9) and the electric switch (6) when the electric switch (6) is turned off; the connection block (9) is electrically connected to a live wire; and the connection block (9) is electrically connected to an incoming line terminal of the electric switch (6).

8. The safety and explosion-proof distribution box according to claim 7 is characterized in that: The locking structure (53) comprises a locking block (61) arranged on the electric switch (6), the locking block (61) being provided with a locking groove (611), a locking block (612) being slidably arranged in the locking groove (611), a locking elastic member (613) being provided between the locking block (612) and the inner wall of the locking groove (611), the locking elastic member (613) being used to push the locking block (612) to move out of the locking groove (611), the connecting block (9) being provided with a locking groove (91), and the locking block (612) being snap-connected to the inner wall of the locking groove (91).

9. The safe explosion-proof distribution box according to claim 8, characterized in that: The unlocking structure (54) comprises an unlocking active rod (541) and an unlocking transmission rod (542); the unlocking active rod (541) is arranged on the transmission rod (52); a sliding hole (92) communicating with the locking groove (91) is formed through the connecting block (9); the unlocking transmission rod (542) is slidably arranged in the sliding hole (92); an unlocking inclined surface (543) is formed on the unlocking transmission rod (542) in an inclined manner; the unlocking inclined surface (543) is used for the unlocking active rod (541) to contact, so as to drive the unlocking transmission rod (542) to push the locking block (612) back into the locking groove (611), so as to release the contact and engagement between the locking block (612) and the inner wall of the locking groove (91).

10. The safety and explosion-proof distribution box according to claim 7, characterized in that: The electric switch (6) is provided with an energy storage elastic member (62), and the connecting block (9) is provided with a receiving groove (93), the receiving groove (93) is used to receive the energy storage elastic member (62), and the energy storage elastic member (62) is used to eject the connecting block (9) in a direction away from the electric switch (6).

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