CN118149667A - Multilayer pressure relief antiknock case - Google Patents

Abstract

The invention discloses a multilayer pressure relief antiknock box, which comprises a pressure relief base, an antiknock container and an antiknock box body; the pressure relief base is internally provided with a pressure relief channel communicated with the outside of the pressure relief base; the anti-explosion container is fixedly arranged on the pressure release base, an opening and an anti-explosion cover are arranged on the anti-explosion container, a pressure release opening is arranged at the bottom of the anti-explosion container, a pressure release liner is arranged in the pressure release opening, and the connecting cavity is communicated with the inner cavity of the anti-explosion container through the pressure release liner; the anti-explosion box body is covered outside the anti-explosion container and is connected with the pressure relief base, and a box door is arranged on the anti-explosion box body. The invention not only has the anti-theft performance of the traditional anti-explosion box, but also realizes excellent anti-explosion performance through multi-layer pressure relief.

Description

Multilayer pressure relief antiknock case

Technical Field

The invention belongs to the technical field of explosive article storage devices, and particularly relates to a multilayer pressure relief anti-explosion box.

Background

The explosive such as detonator, explosive is the blasting material of blasting engineering, according to stipulation, the explosive that remains in the day needs in time to return to the explosive warehouse, and under the circumstances that the construction point is far away from the explosive warehouse and the next day or near-term is about to use again, can not access the explosive at any time from the warehouse, causes the cost to increase, so can make the explosion proof case of interim storage near the construction point.

The explosion-proof box for storing explosion dangerous articles at present can only generally play roles in preventing explosion, preventing burglary and the like, for example, the functions of shielding electromagnetic signals, eliminating static electricity and the like are realized on the explosion-proof box, the explosion-proof box is poor in explosion-proof performance, the explosion-proof performance is far lower than that of the existing explosion-proof container, and the arrangement of the liner inside the explosion-proof box is one of ways capable of improving the explosion-proof performance of the explosion-proof box. For example, publication number CN204678997U, entitled an explosion hazard disposal anti-explosion case, this anti-explosion case has set up the inner box in the case for traditional explosion-proof case, and be provided with circular explosion venting hole on the inner box, and pack semi-rigid polyurethane foam between inner box and box, when explosion takes place in the inner box, the shock wave that produces can propagate to the semi-rigid polyurethane foam of inner box and box through explosion venting hole in, realize damping explosion shock wave pressure through energy-absorbing buffering, and the shock wave still can produce great impact to the box, and be airtight structure between the box and the case lid of this anti-explosion case, the shock wave in the box can't carry out the pressure release, when the antiknock performance of box is lower, still have great potential safety hazard.

The prior anti-explosion container has excellent anti-explosion performance, but the anti-explosion container does not have the functions of heat insulation, fire resistance, theft resistance and the like of the anti-explosion box, so that the anti-explosion box with multiple layers of pressure relief and no harm to external environment personnel is necessary to be developed.

Disclosure of Invention

The invention provides a multilayer pressure relief antiknock box aiming at the defects.

The invention aims at realizing the following technical scheme: a multilayer pressure relief antiknock box comprises a pressure relief base, an antiknock container and an antiknock box body;

the pressure relief base is internally provided with a pressure relief channel, and the outlet position of the pressure relief channel is communicated with the outer wall of the pressure relief base;

The anti-explosion container is fixedly arranged on the pressure release base, an opening and an anti-explosion cover capable of plugging the opening are arranged on the anti-explosion container, a storage platform with through holes is arranged in the anti-explosion container, a pressure release opening is formed in the bottom of the anti-explosion container, a pressure release inner container positioned below the storage platform is fixedly arranged in the pressure release opening, the upper end of the pressure release inner container stretches into the anti-explosion container, the lower end of the pressure release inner container stretches into a pressure release channel and is close to or attached to the bottom of the pressure release channel, the pressure release inner container can be used for supporting the storage platform when the storage platform deforms, and the pressure release channel is communicated with the inner cavity of the anti-explosion container through the pressure release inner container;

The anti-explosion box body is covered outside the anti-explosion container and is connected with the pressure relief base, and a box door is arranged on the anti-explosion box body.

Preferably, the pressure relief liner comprises a shell with a hollow structure, the shell is fixedly arranged in a pressure relief opening, at least two transversely arranged wave-absorbing plates are fixedly arranged in the shell, the wave-absorbing plates divide the inner cavity of the shell to form a plurality of first pressure relief cavities which are longitudinally distributed, through holes are distributed on the wave-absorbing plates, adjacent first pressure relief cavities are communicated through the through holes on the wave-absorbing plates, and a first pressure relief hole which enables the uppermost first pressure relief cavity to be communicated with the inner cavity of the antiknock container and a second pressure relief hole which enables the lowermost first pressure relief cavity to be communicated with the pressure relief channel are arranged on the shell.

Preferably, the second pressure relief holes are uniformly distributed around the bottom of the shell.

Preferably, the apertures of the first pressure relief holes, the through holes on the wave absorbing plate and the second pressure relief holes are gradually increased, and the sum of flux areas of all the first pressure relief holes, the sum of flux areas of all the through holes on the wave absorbing plate and the sum of flux areas of all the second pressure relief holes are gradually increased.

Preferably, a connecting rod is fixedly arranged between the adjacent wave-absorbing plates, and the end part of the connecting rod is in threaded connection with the corresponding wave-absorbing plate.

Preferably, the upper end face and the lower end face of the shell are both in spherical structures, and the middle part of the shell is in a circular ring structure.

Preferably, the pressure relief channel comprises a connecting cavity and at least one second pressure relief cavity, the connecting cavity is communicated with the pressure relief opening, and a third pressure relief hole is formed between the second pressure relief cavity and the connecting cavity and between the outer wall of the pressure relief base and the second pressure relief cavity.

Preferably, the inner wall of the connecting cavity is provided with a blocking layer with flame retardant, heat insulation and sound insulation functions, and the blocking layer is provided with a through hole corresponding to the third pressure relief hole.

Preferably, the pressure relief base comprises a top plate, a bottom plate, a supporting circular tube and a shell are fixedly arranged between the bottom plate and the top plate, the supporting circular ring is positioned in the shell, the inner cavity of the supporting circular tube is used as the connecting cavity, the space between the shell and the supporting circular tube is used as the second pressure relief cavity, and the supporting circular tube and the shell are provided with the third pressure relief holes.

Preferably, asbestos is filled between the outer wall of the antiknock container and the inner wall of the antiknock box.

Preferably, the box door is an anti-theft door provided with a coded lock.

Compared with the prior art, the invention has the following beneficial effects:

1. By arranging the anti-explosion container, the anti-explosion box body and the pressure relief base in a combined mode, the anti-explosion box not only has excellent anti-explosion performance, but also has the anti-theft performance of the traditional anti-explosion box;

2. the pressure release base and the pressure release liner are arranged, so that the pressure release can be carried out on shock waves generated by explosion in the anti-explosion container for multiple times, and the anti-explosion performance of the anti-explosion container is further improved;

3. The pressure release liner can realize pressure release, can also support the storage platform, and the shock wave generated by explosion inside the antiknock container can lead the storage platform to deform downwards, so that the pressure release liner can support the storage platform, and the storage platform is prevented from being embedded into the pressure release base under the action of the shock wave, thereby preventing the pressure release performance of the pressure release base from being influenced;

4. The explosion-proof container is characterized in that the explosion-proof articles are stored on the storage platform in the explosion-proof container, when the explosion occurs, the inner cavity of the explosion-proof container is exploded and is decompressed through the decompression inner container and the decompression base, the space between the explosion-proof box body and the explosion-proof container is less affected, the shock wave generated by the explosion cannot be born, and the shock wave cannot directly affect the explosion-proof box body, so that the requirement on the explosion-proof performance of the explosion-proof box body is lower, and only the existing explosion-proof box body is adopted as an explosion-proof box body mechanism;

5. The asbestos has high fire resistance, electrical insulation and heat insulation, and the blocking layer arranged on the inner wall of the connecting cavity has flame retardant, heat insulation and sound insulation functions, so that the invention also has certain fire resistance, and even if a fire occurs outside the invention, the heat can be isolated through the asbestos and the blocking layer, thereby improving the safety performance of the invention.

6. The anti-explosion container is in threaded connection with the pressure relief base through the connecting ring and the connecting sleeve, so that the anti-corrosion treatment and maintenance of the inside of the pressure relief base can be facilitated, and meanwhile, the welding of the inner side of the supporting circular tube can be facilitated;

7. the second pressure relief holes are arranged around the bottom of the shell, so that the drainage direction of the shock wave passing through the pressure relief liner can be changed, and the stability of the pressure relief liner is enhanced.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is an enlarged view of FIG. 2 at A;

FIG. 5 is a schematic view of the internal structure of the pressure relief liner;

The marks in the figure: 1. the pressure release base, 2, antiknock container, 3, antiknock box, 4, the connecting chamber, 5, the second pressure release chamber, 6, the third pressure release hole, 7, the barrier layer, 8, the adapter sleeve, 9, the roof, 10, the bottom plate, 11, support pipe, 12, the shell, 13, asbestos, 14, explosion proof lid, 15, the storing platform, 16, the go-between, 17, first stopper, 18, the second stopper, 19, the pressure release inner bag, 20, the casing, 21, the wave absorbing plate, 22, first pressure release chamber, 23, the connecting rod, 24, the second pressure release hole, 25, the chamber door, 26, fork truck hole, 27, first pressure release hole.

Detailed Description

The invention is further described below with reference to embodiments shown in the drawings in which:

example 1

As shown in fig. 1-5, a multilayer pressure relief antiknock box comprises a pressure relief base 1, an antiknock container 2 and an antiknock box body 3;

The pressure relief base 1 is internally provided with a pressure relief channel communicated with the outside of the pressure relief base 1, the pressure relief channel comprises a connecting cavity 4 and a second pressure relief cavity 5, the second pressure relief cavity 5 is communicated with the connecting cavity 4, the outer wall of the pressure relief base 1 is communicated with the second pressure relief cavity 5 through third pressure relief holes 6, the inner wall of the connecting cavity 4 is provided with a barrier layer 7 with flame retardant, heat insulation and sound insulation functions, and the barrier layer 7 is provided with through holes corresponding to the third pressure relief holes 6; the pressure relief base 1 is fixedly provided with a connecting sleeve 8, and the hollow position of the connecting sleeve 8 is communicated with the connecting cavity 4.

The pressure relief base 1 comprises a top plate 9 and a bottom plate 10, a supporting circular tube 11 and a shell 12 are fixedly arranged between the bottom plate 10 and the top plate 9, a supporting circular ring is positioned in the shell 12, an inner cavity of the supporting circular tube 11 is used as the connecting cavity 4, a space between the shell 12 and the supporting circular tube 11 is used as the second pressure relief cavity 5, and third pressure relief holes 6 are formed in the supporting circular tube 11 and the shell 12. The inner and outer sides of the joint of the upper end of the supporting circular tube 11 and the top plate 9 and the inner and outer sides of the joint of the lower end of the supporting circular tube 11 and the bottom plate 10 are welded and fixed.

The anti-knock container 2 is fixedly arranged on the pressure release base 1, asbestos 13 is filled between the outer wall of the anti-knock container 2 and the inner wall of the anti-knock box body 3, and the asbestos 13 has high fire resistance, electrical insulation and heat insulation, so that the effects of fire resistance, insulation and heat insulation can be achieved. The explosion-proof container 2 is provided with an opening and an explosion-proof cover 14 capable of plugging the opening, the explosion-proof cover 14 is connected with the explosion-proof container 2 in a threaded or clamping or mounting buckle mode, asbestos 13 is not arranged on the outer side of the explosion-proof cover 14, and accordingly the explosion-proof container is convenient to store and take. The anti-explosion container 2 is internally and fixedly provided with a storage platform 15 distributed with through holes, and the storage platform 15 is used for placing explosive articles. The bottom of the inner cavity of the antiknock container 2 supports the storage platform 15, and the edge of the storage platform 15 is welded and fixed with the inner wall of the antiknock container 2.

The bottom of the antiknock container 2 is provided with a pressure relief opening, the pressure relief opening of the antiknock container 2 is fixedly provided with a connecting ring 16, the connecting ring 16 is sleeved in the connecting sleeve 8, the connecting ring 16 is in threaded connection with the connecting sleeve 8, and the connecting ring 16 and the connecting sleeve 8 can have excellent sealing performance in a threaded connection mode. The first stopper 17 of laminating at the top of connecting chamber 4 is fixed to adapter sleeve 8 outer wall, and the adapter ring 16 outer wall is fixed to be equipped with the second stopper 18 of laminating in adapter sleeve 8 upper end, welded fastening between second stopper 18 and the antiknock container 2 outer wall. The pressure relief opening is internally provided with a pressure relief liner 19 positioned below the storage platform 15, and the pressure relief liner 19 is sleeved in the connecting sleeve 8 and is in threaded connection with the inner wall of the connecting sleeve 8. The screwing mode can enable the pressure release liner 19 and the connecting ring 16 to have excellent sealing performance. The pressure release inner bag 19 upper end stretches into antiknock container 2 and leaves the interval between pressure release inner bag 19 and the storing platform 15, and pressure release inner bag 19 lower extreme stretches into connecting chamber 4 and laminating in connecting chamber 4 bottom, and pressure release inner bag 19 can be used for supporting storing platform 15 when storing platform 15 takes place deformation, connecting chamber 4 communicates with antiknock container 2 inner chamber through pressure release inner bag 19. The pressure release liner 19 includes hollow structure's casing 20, casing 20 up end and lower terminal surface are spherical structure, and casing 20 mid portion is the ring structure, and casing 20 internal fixation is equipped with two wave-absorbing plates 21 that transversely set up, and wave-absorbing plate 21 separates the casing 20 inner chamber and forms a plurality of first pressure release cavitys 22 that are longitudinal distribution, and it has the through-hole to distribute on the wave-absorbing plate 21, communicates through the through-hole on the wave-absorbing plate 21 between the adjacent first pressure release cavity 22, is adjacent fixed being equipped with connecting rod 23 between the wave-absorbing plate 21, connecting rod 23 tip and the corresponding wave-absorbing plate 21 spiro union. The casing 20 is provided with a first pressure release hole 27 for communicating the uppermost first pressure release chamber 22 with the inner cavity of the antiknock container 2, and a second pressure release hole 24 for communicating the lowermost first pressure release chamber 22 with the connecting chamber 4. The apertures of the first pressure relief holes 27, the through holes on the wave absorbing plate 21 and the second pressure relief holes 24 are gradually increased, and the sum of the flux areas of all the first pressure relief holes 27, the sum of the flux areas of all the through holes on the wave absorbing plate 21 and the sum of the flux areas of all the second pressure relief holes 24 are gradually increased. The flux area is the pressure release area of the hole, the explosion release effect can be controlled by controlling the ratio of the sum of the flux areas of all the first pressure release holes 27, the sum of the flux areas of the through holes on all the wave absorbing plates 21 and the sum of the flux areas of all the second pressure release holes 24, and if the test effect is not ideal in the test process, the pressure release liner 19 with different flux area ratios of the first pressure release holes 27, the through holes on the wave absorbing plates 21 and the second pressure release holes 24 can be tested again.

The screw pitch of the screw thread of the outer side surface of the connecting ring 16 in screw connection with the connecting sleeve 8 is larger than the screw pitch of the screw thread of the inner side surface of the connecting ring 16 in screw connection with the shell 20.

The anti-explosion box body 3 adopts the existing anti-explosion box body, the anti-explosion box body 3 is covered outside the anti-explosion container 2 and is connected with the pressure relief base 1, the top of the anti-explosion box body 3 is provided with a box door 25, and the box door 25 is a burglary-resisting door with a coded lock. Square tubes are fixedly arranged on the antiknock box body 3 or the pressure relief base 1, and hollow inner cavities of the square tubes serve as forklift holes 26, so that the antiknock box body is convenient to use a forklift to carry the antiknock box.

Because the anti-knock container 2 is in threaded connection with the pressure relief base 1 through the connecting ring 16 and the connecting sleeve 8, before filling asbestos 13, the anti-knock container 2 can be detached from the pressure relief base 1, and the anti-knock container can extend into the pressure relief base 1 from the position of the connecting ring 16, so that the anti-corrosion treatment and maintenance of the pressure relief base 1 can be conveniently performed, and meanwhile, the inner side of the supporting circular tube 11 can be conveniently welded.

The second pressure relief holes 24 are provided around the bottom of the housing 20, so that the direction of the discharge of the shock wave passing through the pressure relief liner 19 can be changed to enhance the stability of the present invention.

By combining the characteristics of the antiknock container, the antiknock container 2 can be made larger appropriately according to the requirements of customers so as to increase the inner cavity capacity of the antiknock container 2, and therefore more explosives can be placed in the antiknock container 2.

The application principle of the invention is as follows:

When explosion occurs in the antiknock container 2, shock waves generated by the explosion can directly act on the inner wall of the antiknock container 2 and the storage platform 15, the storage platform 15 can deform downwards under the action of the shock waves and is pressed on the pressure release liner 19, the pressure release liner 19 is fixed on the connecting ring 16 at the position of the pressure release opening, and the bottom of the pressure release liner 19 is attached to the bottom of the connecting cavity 4, so that the pressure release liner 19 can support the storage platform 15, the storage platform 15 is prevented from being embedded into a pressure release channel of the pressure release base 1 under the action of the shock waves, and the pressure release performance of the pressure release base 1 is prevented from being influenced. The shock wave and flame generated by explosion can instantaneously pass through the through hole on the pressure relief platform, enter the pressure relief liner 19 from the first pressure relief hole 27, sequentially pass through the three first pressure relief cavities 22 in the pressure relief liner 19 and the through holes on the wave-absorbing plate 21, enter the connecting cavity 4 in the pressure relief base 1 from the second pressure relief hole 24, enter the second pressure relief cavity 5 through the third pressure relief hole 6 on the supporting circular tube 11, and finally are discharged to the outside through the third pressure relief hole 6 on the shell 12. The apertures of the first pressure relief holes 27, the through holes on the wave absorbing plate 21 and the second pressure relief holes 24 are gradually increased, and the sum of the flux areas of all the first pressure relief holes 27, the sum of the flux areas of all the through holes on the wave absorbing plate 21 and the sum of the flux areas of all the second pressure relief holes 24 are gradually increased. The drainage area can be gradually enlarged, shock waves, flames and noise are fully relieved after being subjected to multi-layer pressure relief through the first pressure relief cavities 22 in the pressure relief liner 19, the connecting cavity 4 on the pressure relief base 1 and the second pressure relief cavity 5, and when the pressure relief base is finally discharged outside, excellent pressure relief, flame elimination and noise reduction effects can be realized, so that various performance indexes of the pressure relief base are more excellent.

After the shock wave generated by explosion is discharged into the connecting cavity 4 through the pressure release liner 19, the pressure release liner 19 can generate a trend of upward movement, the pressure release liner 19 is in threaded connection with the connecting ring 16, the connecting ring 16 is in threaded connection with the connecting sleeve 8, the first limiting block 17 on the connecting sleeve 8 is abutted against the top of the connecting cavity 4, and the upward movement trend of the pressure release liner 19 can be prevented, so that the effect of the first limiting block 17 can improve the internal structural stability of the invention. The second limiting block 18 can play a role in installation and positioning between the connecting ring 16 and the connecting sleeve 8, meanwhile, the connecting sleeve 8 can also support the second limiting block 18, and the strength of the pressure relief opening of the antiknock container can be enhanced due to the arrangement of the connecting ring 16 and the connecting sleeve 8, so that the pressure relief opening is prevented from being torn.

According to the pressure relief liner 19 disclosed by the invention, the wave-absorbing plates 21 are arranged to separate a plurality of first pressure relief cavities 22, so that the pressure relief and flame-suppressing performances of the pressure relief liner 19 can be improved, the structural strength of the pressure relief liner 19 can be enhanced, and the connecting rods 23 are arranged between the wave-absorbing plates 21, so that the overall structural strength of the pressure relief liner 19 can be further improved, the space of each first pressure relief cavity 22 in the pressure relief liner 19 is kept, the adjacent wave-absorbing plates 21 are prevented from being extruded together under the action of shock waves, and the pressure relief liner 19 can also better support the storage platform 15.

In the whole pressure relief process, shock waves generated by explosion cannot enter the space between the antiknock container 2 and the antiknock box body 3, so that the space between the antiknock container 2 and the antiknock box body 3 is quite safe and cannot generate high pressure.

The asbestos 13 has high fire resistance, electrical insulation and heat insulation, and the blocking layer 7 arranged on the inner wall of the connecting cavity 4 has flame retardant, heat insulation and sound insulation functions, so that the invention also has certain fire resistance, and even if a fire occurs outside the invention, the heat can be isolated through the asbestos 13 and the blocking layer 7, thereby improving the safety performance of the invention.

The anti-explosion box body 3 provided by the invention can use the existing anti-explosion box, so that the anti-theft function of the existing anti-explosion box can be reserved, and the anti-explosion container 2 provided by the invention has excellent anti-explosion performance, and meanwhile, the anti-explosion box body can have excellent effects of pressure relief, flame elimination, noise reduction, heat insulation, fire resistance and the like by arranging the pressure relief liner 19, the pressure relief base 1, the asbestos 13 and the barrier layer 7.

It should be understood that in the claims and the description of the present invention, all "including … …" should be interpreted as an open meaning, i.e. as meaning equivalent to "at least … …", and not as a closed meaning, i.e. as meaning not including … … "only.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. The multilayer pressure relief antiknock box is characterized by comprising a pressure relief base, an antiknock container and an antiknock box body; the pressure relief base is internally provided with a pressure relief channel, and the outlet position of the pressure relief channel is communicated with the outer wall of the pressure relief base;

The anti-explosion container is fixedly arranged on the pressure release base, an opening and an anti-explosion cover capable of plugging the opening are arranged on the anti-explosion container, a pressure release opening is arranged at the bottom of the anti-explosion container, a pressure release liner is fixedly arranged in the pressure release opening, and the pressure release channel is communicated with the inner cavity of the anti-explosion container through the pressure release liner;

The anti-explosion box body is covered outside the anti-explosion container and is connected with the pressure relief base, and a box door is arranged on the anti-explosion box body.

2. The multilayer pressure relief antiknock box according to claim 1, characterized in that the pressure relief liner comprises a hollow shell, the shell is fixedly arranged in the pressure relief opening, at least two transversely arranged wave-absorbing plates are fixedly arranged in the shell, the wave-absorbing plates divide the inner cavity of the shell into a plurality of first pressure relief cavities which are longitudinally distributed, through holes are distributed on the wave-absorbing plates, adjacent first pressure relief cavities are communicated through the through holes on the wave-absorbing plates, a first pressure relief hole which enables the first pressure relief cavity at the uppermost end to be communicated with the inner cavity of the antiknock container, and a second pressure relief hole which enables the first pressure relief cavity at the lowermost end to be communicated with the pressure relief channel are arranged on the shell.

3. The multi-layer pressure relief and antiknock box of claim 2 wherein the second pressure relief holes are evenly distributed around the bottom of the housing.

4. The multilayer pressure relief and antiknock box according to claim 2, characterized in that the apertures of the first pressure relief holes, the through holes on the wave-absorbing plate, and the second pressure relief holes are gradually increased, and the sum of the flux areas of all the first pressure relief holes, the sum of the flux areas of all the through holes on the wave-absorbing plate, and the sum of the flux areas of all the second pressure relief holes are gradually increased. Connecting rods are fixedly arranged between the adjacent wave-absorbing plates, and the end parts of the connecting rods are in threaded connection with the corresponding wave-absorbing plates.

5. The multi-layer pressure relief and antiknock box according to claim 2 wherein the upper and lower end surfaces of the housing are spherical and the middle of the housing is circular.

6. The multilayer pressure relief antiknock box according to claim 2, characterized in that the pressure relief channel comprises a connecting cavity and at least one second pressure relief cavity, the connecting cavity is communicated with the pressure relief opening, and a third pressure relief hole is respectively arranged between the second pressure relief cavity and the connecting cavity and between the outer wall of the pressure relief base and the second pressure relief cavity.

7. The multilayer pressure relief antiknock box according to claim 6, characterized in that the inner wall of the connecting cavity is provided with a barrier layer with flame-retardant, heat-insulating and sound-insulating functions, and the barrier layer is provided with a through hole corresponding to the third pressure relief hole.

8. The multilayer pressure relief antiknock box according to claim 7, characterized in that the pressure relief base comprises a top plate, a bottom plate, a supporting circular tube and a shell are fixedly arranged between the bottom plate and the top plate, the supporting circular ring is positioned in the shell, the inner cavity of the supporting circular tube is used as the connecting cavity, the space between the shell and the supporting circular tube is used as the second pressure relief cavity, and the third pressure relief holes are formed in the supporting circular tube and the shell.

9. The multi-layer pressure relief anti-knock box according to claim 1 wherein asbestos is filled between the outer wall of the anti-knock container and the inner wall of the anti-knock box, and the box door is an anti-theft door provided with a coded lock.

10. The multilayer pressure relief antiknock box according to claim 1, characterized in that a storage platform with through holes distributed therein is arranged in the antiknock container, the upper end of the pressure relief liner stretches into the antiknock container and is positioned below the storage platform, the lower end of the pressure relief liner stretches into the connecting cavity and is close to or attached to the bottom of the connecting cavity, and the pressure relief liner can be used for supporting the storage platform when the storage platform deforms.