An explosion-proof electrical product test box

Abstract

The present invention discloses an explosion-proof electrical product test box, comprising: a test box body, a sealed box door, a self-shrinking explosion-proof test mechanism, a pressure relief and flow guiding mechanism, and a dust removal and cooling mechanism. The self-shrinking explosion-proof test mechanism comprises an explosion-proof inner shell, an explosion-proof buffer air bag layer is fixedly connected between the explosion-proof inner shell and the inner wall of the test box body, a linkage air guide is fixedly assembled on the top of the test box body, a compression air cavity is opened in the linkage air guide, and a plurality of evenly distributed control air cavities are opened in the linkage air guide. The pressure relief and flow guiding mechanism comprises a pair of air collecting parts, and exhaust pipes are plugged into one end of the pair of air collecting parts located outside the test box body. The present invention can provide multi-faceted explosion-proof protection for the explosion-proof electrical product test box by arranging a self-shrinking explosion-proof test mechanism and a pressure relief and flow guiding mechanism, significantly improving the explosion-proof protection effect of the explosion-proof electrical product test box, and greatly improving the safety and reliability of the use of the explosion-proof electrical product test box.

Description

Technical Field

[0001] The invention belongs to the technical field of explosion-proof test boxes, and in particular relates to an explosion-proof electrical product test box. Background Art

[0002] Explosion-proof electrical product test chamber is a type of equipment used to test the safety performance of electrical products. It is designed to simulate the safety performance of electrical products under extreme environmental conditions such as high temperature, low temperature, high pressure, and low pressure. It is especially suitable for testing the explosion-proof performance of electrical products. By simulating the explosion environment, it detects the safety and reliability of electrical products. It is widely used in the testing of electrical products in the fields of electronics, electrical appliances, automobiles, aviation, etc.

[0003] The design and manufacture of explosion-proof electrical product test chambers need to follow strict standards to ensure the safety and reliability of the test chambers. They adopt explosion-proof design and have pressure relief system, exhaust system, over-temperature alarm, leakage protection and other functions.

[0004] The explosion-proof electrical product test box in the prior art mainly adopts the method of discharging the gas generated by the explosion in the box to provide explosion-proof protection for the inner wall of the test box. However, since the explosion occurs in a short period of time, a large amount of energy is released in the test box in a short period of time, and a large amount of high-temperature gas is generated. This makes the effect of using only the exhaust method to provide explosion-proof protection for the inner wall of the test box poor. The explosion-proof electrical product test box will still be damaged during actual use, resulting in poor safety and reliability in the use of the explosion-proof electrical product test box.

[0005] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0006] The object of the present invention is to provide an explosion-proof electrical product test box, which can improve the use safety and reliability of the explosion-proof electrical product test box.

[0007] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0008] An explosion-proof electrical product test box comprises: a test box body, a sealed box door, a self-shrinking explosion-proof test mechanism, a pressure relief and flow diversion mechanism, and a dust removal and cooling mechanism.

[0009] A sealed door is hingedly mounted on one side of the test box.

[0010] The self-shrinking explosion-proof test mechanism is fixedly assembled in the test box, and the self-shrinking explosion-proof test mechanism includes an explosion-proof inner shell, and the explosion-proof inner shell is fixedly assembled in the test box. An explosion-proof buffer airbag layer is fixedly connected between the explosion-proof inner shell and the inner wall of the test box, and a linkage air guide is fixedly assembled on the top of the test box. A compressed air cavity is opened in the linkage air guide, and a plurality of evenly distributed control air cavities are opened in the linkage air guide, and the plurality of control air cavities are evenly arranged on the outside of the compressed air cavity. A jet fire extinguishing assembly is fixedly assembled on the inner wall of the explosion-proof inner shell, and the jet fire extinguishing assembly is communicated with the compressed air cavity.

[0011] The pressure relief and guide mechanism is fixedly assembled on the outside of the test box body, and the pressure relief and guide mechanism includes a pair of air collecting parts, and the pair of air collecting parts are fixedly assembled on the inner wall of the explosion-proof inner shell, and the ends of the pair of air collecting parts outside the test box body are both connected with exhaust pipes, and the ends of the pair of exhaust pipes away from the air collecting parts are both connected with exhaust gas purification guide components, and the exhaust gas purification guide components are connected with the linkage air guide parts.

[0012] The dust removal and cooling mechanism is assembled in an explosion-proof inner shell, and is used for performing dust removal and cooling treatment on electrical products.

[0013] In one or more embodiments of the present invention, a plurality of evenly distributed elastic damping blocks are fixedly assembled in the explosion-proof buffer airbag layer, and the plurality of elastic damping blocks are all hollow. By arranging a plurality of hollow elastic damping blocks in the explosion-proof buffer airbag layer, the explosion-proof inner shell can be auxiliary supported and limited. At the same time, the explosion-proof inner shell can be buffered and limited by contracting and resetting the plurality of elastic damping blocks. Conical exhaust holes are provided on the outer sides of the plurality of elastic damping blocks, and the diameter of the conical exhaust hole at one end outside the elastic damping block is smaller than the diameter of the other end. By providing a conical exhaust hole on the outer side of the elastic damping block, it is convenient to make the exhaust speed of the elastic damping block when compressed greater than the intake speed when expanded and reset, so that the elastic damping block can buffer and limit the explosion-proof inner shell.

[0014] In one or more embodiments of the present invention, a plurality of connecting holes are provided in the linkage air guide, and the compression air chamber and the plurality of control air chambers are connected through the connecting holes. The compression air chamber and the plurality of control air chambers are connected through the plurality of connecting holes so that the air in the plurality of control air chambers can be transported along the connecting holes to the compression air chamber, thereby facilitating the control of the air compression state in the compression air chamber. A compression piston block is slidably mounted in the compression air chamber. The gas in the compression air chamber is compressed and transported by sliding the compression piston block in the compression air chamber, thereby facilitating the expansion and rupture of the storage air bag. A return spring is fixedly connected between the compression piston block and the linkage air guide, and the return spring is arranged above the compression piston block. The return spring serves to connect the compression piston block and the linkage air guide, and the compression piston block is connected and limited by the contraction and resetting of the return spring.

[0015] In one or more embodiments of the present invention, a plurality of the control air cavities are slidably equipped with a driving piston block. The air in the control air cavity is compressed and transported by sliding the driving piston block in the control air cavity. A connecting spring is fixedly connected between the driving piston block and the linkage air guide, and the connecting spring is arranged below the driving piston block. The connecting spring serves to connect the driving piston block and the linkage air guide, and supports and limits the driving piston block through the contraction and resetting of the connecting spring. A ventilation air pipe is connected between the plurality of the linkage air guides and the explosion-proof buffer air bag layer, and the ventilation air pipe is connected to the control air cavity. The ventilation air pipe serves to connect the explosion-proof buffer air bag layer and the control air cavity, so that the air in the explosion-proof buffer air bag layer is transported to the control air cavity along the ventilation air pipe, thereby facilitating the pushing and control of the driving piston block.

[0016] In one or more embodiments of the present invention, the jet fire extinguishing assembly includes a jet deflector, which is fixedly mounted on the inner wall of the explosion-proof inner shell, and the jet deflector is arranged between a pair of air collecting parts. The jet deflector plays a role in assembling and fixing the storage airbag. A storage airbag is fixedly mounted inside the jet deflector. The storage airbag plays a role in storing, limiting, and jetting the dry powder fire extinguishing agent. The storage airbag is filled with dry powder fire extinguishing agent. By spraying dry powder fire extinguishing agent into the explosion-proof inner shell, the electrical products that explode in the explosion-proof inner shell are extinguished and protected from combustion and explosion, thereby improving the explosion-proof protection effect of the electrical products. A connecting air pipe is connected between the storage airbag and the compressed air cavity. The connecting air pipe plays a role in connecting the storage airbag and the compressed air cavity, so that the air in the compressed air cavity is transported to the storage airbag along the connecting air pipe.

[0017] In one or more embodiments of the present invention, an exhaust gas guide cavity is provided on the side wall of the gas collecting member, and the exhaust gas guide cavity is connected to the exhaust pipe. The exhaust gas generated during the test of the electrical product in the explosion-proof inner shell is guided by the exhaust gas guide cavity. A sealing plate is hingedly connected to one end of the exhaust pipe away from the gas collecting member. The exhaust pipe is sealed and protected by the sealing plate.

[0018] In one or more embodiments of the present invention, the exhaust gas purification and diversion assembly includes an exhaust gas purification cylinder, which is fixedly mounted on the side wall of the test box. The exhaust gas purification cylinder provides a purification space for the exhaust gas collected by the gas collecting component, thereby improving the environmental protection and safety of the explosion-proof electrical product test box. An air guide dust collection pipe is fixedly connected to the bottom of the exhaust gas purification cylinder, and the air guide dust collection pipe is connected to the exhaust pipe. The air guide dust collection pipe serves to connect the exhaust gas purification cylinder and the exhaust pipe, so as to facilitate the diversion of the exhaust gas collected by the gas collecting component into the exhaust gas purification cylinder. At the same time, the impurities filtered out of the exhaust gas purification cylinder can be diverted and collected through the air guide dust collection pipe. The lower end of the air guide dust collection pipe is threadedly connected to a dust storage cylinder, and the dust storage cylinder is arranged below the exhaust pipe. The impurities filtered out of the exhaust gas purification cylinder are stored by the dust storage cylinder.

[0019] In one or more embodiments of the present invention, an assembly shaft is rotatably mounted in the exhaust gas purification cylinder. The assembly shaft plays the role of assembling, fixing and rotating driving multiple groups of assembly frames. Multiple groups of evenly distributed assembly frames are fixedly mounted on the outer side of the assembly shaft. Multiple groups of assembly frames play the role of assembling and fixing the filter screen. Multiple groups of assembly frames are fixedly mounted with filter screens. The exhaust gas in the exhaust gas purification cylinder is filtered for impurities by rotating multiple groups of filter screens.

[0020] In one or more embodiments of the present invention, multiple groups of assembly frames are equipped with exhaust fans above. The air in the exhaust gas purification cylinder is extracted and diverted by controlling the operation of the exhaust fan, so as to facilitate the collection and extraction of exhaust gas in the explosion-proof inner shell. An exhaust gas diversion pipe is fixedly connected to the top of the exhaust gas purification cylinder. The exhaust gas diversion pipe serves to connect the three-way connecting end with the exhaust gas purification cylinder, so as to facilitate the diversion and transportation of the exhaust gas filtered in the exhaust gas purification cylinder. A three-way connecting end is fixedly connected to the end of the exhaust gas diversion pipe away from the exhaust gas purification cylinder. The three-way connecting end serves to connect the exhaust gas diversion pipe with the exhaust gas purification cylinder, so as to facilitate the transportation of the purified exhaust gas diverted in the exhaust gas diversion pipe to the one-way air inlet pipe.

[0021] In one or more embodiments of the present invention, a one-way air intake pipe is connected between the three-way connection end and the compressed air cavity. The one-way air intake pipe serves to connect the three-way connection end and the compressed air cavity, so as to facilitate the delivery of the purified exhaust gas transported in the three-way connection end to the compressed air cavity, thereby facilitating the driving and control of the compression piston block. The one-way air intake pipe is fixedly connected to a limited filter screen at one end close to the three-way connection end. The limited filter screen serves as a sliding limit for the T-shaped assembly rod and the support spring. A T-shaped assembly rod is inserted into the limited filter screen. The T-shaped assembly rod serves to support, fix and move the blocking block. A support spring is sleeved on the outer side of the T-shaped assembly rod. The T-shaped assembly rod is supported and limited by the contraction and reset of the support spring. The one-way air intake pipe is fixedly connected to a blocking block at one end of the T-shaped assembly rod located in the one-way air intake pipe, and the blocking block is arranged in cooperation with the three-way connection end. The one-way air intake pipe is closed and limited by the blocking block, so that the conduction state of the one-way air intake pipe is controlled by controlling the movement of the blocking block.

[0022] Compared with the prior art, the present invention can provide multi-faceted explosion-proof protection for the explosion-proof electrical product test box by arranging a self-contracting explosion-proof test mechanism and a pressure relief and diversion mechanism, which significantly improves the explosion-proof protection effect of the explosion-proof electrical product test box and greatly improves the safety and reliability of the use of the explosion-proof electrical product test box. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A three-dimensional diagram of an explosion-proof electrical product test box in one embodiment of the present invention;

[0025] Figure 2 It is a three-dimensional diagram of another state of the explosion-proof electrical product test box in one embodiment of the present invention;

[0026] Figure 3 It is a front cross-sectional view of an explosion-proof electrical product test box in one embodiment of the present invention;

[0027] Figure 4 for Figure 3 Schematic diagram of the structure at A in the middle;

[0028] Figure 5 for Figure 3 Schematic diagram of the structure at B in the middle;

[0029] Figure 6 for Figure 3Schematic diagram of the structure at C in the middle;

[0030] Figure 7 for Figure 3 Schematic diagram of the structure at D in the middle;

[0031] Figure 8 A side cross-sectional view of an explosion-proof electrical product test box in one embodiment of the present invention;

[0032] Fig. 9 for Figure 8 Schematic diagram of the structure at E in the middle;

[0033] Fig.10 for Figure 8 Schematic diagram of the structure at F in the middle;

[0034] Fig.11 A top sectional view of an explosion-proof electrical product test box in one embodiment of the present invention;

[0035] Fig.12 for Fig.11 Schematic diagram of the structure at G in the middle.

[0036] Description of main reference numerals:

[0037] 1-test box, 101-sealed box door, 2-self-shrinking explosion-proof test mechanism, 201-explosion-proof inner shell, 202-explosion-proof buffer airbag layer, 203-linked air guide, 204-compression air chamber, 205-control air chamber, 206-elastic damping block, 207-compression piston block, 208-reset spring, 209-driving piston block, 210-connecting spring, 211-conducting air pipe, 212-injection guide cover, 213-storage airbag, 214-dry powder fire extinguishing agent, 215-connecting air pipe, 3-pressure relief guide mechanism, 301-gas collecting part, 302-exhaust pipe, 303-blocking plate, 304-exhaust gas purification Cylinder, 305-air guide dust removal pipe, 306-dust storage cylinder, 307-assembly shaft, 308-assembly frame, 309-filter, 310-exhaust fan, 311-exhaust guide pipe, 312-three-way connecting end, 313-one-way air inlet pipe, 314-limiting filter, 315-T-shaped assembly rod, 316-support spring, 317-blocking block, 4-dust removal cooling mechanism, 401-test bench, 402-supporting net, 403-blowing pipe, 404-one-way exhaust pipe, 405-pressure relief exhaust pipe, 406-exhaust limiting net, 407-limiting assembly rod, 408-exhaust limiting spring, 409-exhaust blocking block. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0039] like Figures 1 to 12 As shown, an explosion-proof electrical product test box in one embodiment of the present invention includes: a test box body 1, a sealed box door 101, a self-shrinking explosion-proof test mechanism 2, a pressure relief and diversion mechanism 3, and a dust removal and cooling mechanism 4.

[0040] like Figure 1 to Figure 2 As shown, a sealed door 101 is hingedly mounted on one side of the test box 1. The sealed door 101 cooperates with the test box 1 to form a closed test cavity, providing an explosion-proof test space for electrical products.

[0041] like Figures 1 to 8 As shown, the self-shrinking explosion-proof test mechanism 2 is fixedly assembled in the test box 1, and the self-shrinking explosion-proof test mechanism 2 includes an explosion-proof inner shell 201, which is fixedly assembled in the test box 1. The explosion-proof inner shell 201 is used to provide impact and explosion-proof protection for the electrical product to be tested.

[0042] like Figures 3 to 7 As shown, an explosion-proof buffer airbag layer 202 is fixedly connected between the explosion-proof inner shell 201 and the inner wall of the test box 1. The explosion-proof buffer airbag layer 202 plays a buffering and limiting role on the explosion-proof inner shell 201 through the contraction and reset of the explosion-proof buffer airbag layer 202, thereby improving the impact resistance and explosion-proof protection performance of the explosion-proof inner shell 201 during use.

[0043] like Figures 3 to 7 As shown, a plurality of uniformly distributed elastic damping blocks 206 are fixedly installed in the explosion-proof buffer airbag layer 202, and the plurality of elastic damping blocks 206 are all hollow. By arranging a plurality of hollow elastic damping blocks 206 in the explosion-proof buffer airbag layer 202, the explosion-proof inner shell 201 can be auxiliary supported and limited. At the same time, the explosion-proof inner shell 201 can be buffered and limited by the contraction and reset of the plurality of elastic damping blocks 206.

[0044] It is worth noting that a plurality of elastic damping blocks 206 are provided with conical exhaust holes on their outer sides, and the diameter of the conical exhaust holes at one end of the elastic damping blocks 206 is smaller than the diameter of the other end. By providing the conical exhaust holes on the outer sides of the elastic damping blocks 206, it is convenient to make the exhaust speed of the elastic damping blocks 206 when compressed greater than the intake speed when expanded and reset, so that the elastic damping blocks 206 buffer and limit the explosion-proof inner shell 201.

[0045] like Figures 3 to 6 As shown, a linkage air guide 203 is fixedly mounted on the upper part of the test box 1, and a compressed air cavity 204 is provided in the linkage air guide 203. The storage air bag 213 is inflated by controlling the gas compression in the compressed air cavity 204, so as to facilitate the spraying control of the dry powder fire extinguishing agent 214.

[0046] like Figures 3 to 6 As shown, a plurality of evenly distributed control air chambers 205 are provided in the linkage air guide 203, and the plurality of control air chambers 205 are evenly arranged outside the compression air chamber 204. By compressing the plurality of control air chambers 205, the gas in the control air chamber 205 can be transported to the compression air chamber 204 along the connecting hole, thereby facilitating the driving control of the compression piston block 207.

[0047] Specifically, a plurality of connecting holes are provided in the linkage air guide 203, and the compressed air cavity 204 is connected with the plurality of control air cavities 205 through the connecting holes. The compressed air cavity 204 and the plurality of control air cavities 205 are connected through the plurality of connecting holes so that the air in the plurality of control air cavities 205 can be transported to the compressed air cavity 204 along the connecting holes, thereby facilitating the control of the air compression state in the compressed air cavity 204.

[0048] like Figures 3 to 6 As shown, a compression piston block 207 is slidably mounted in the compression air chamber 204. The compression piston block 207 slides in the compression air chamber 204 to compress and transport the gas in the compression air chamber 204, thereby making it easier for the storage air bag 213 to expand and rupture.

[0049] like Figures 3 to 6 As shown, a return spring 208 is fixedly connected between the compression piston block 207 and the linkage air guide 203, and the return spring 208 is arranged above the compression piston block 207. The return spring 208 serves to connect the compression piston block 207 and the linkage air guide 203, and the compression piston block 207 is connected and limited by the contraction and reset of the return spring 208.

[0050] like Figures 3 to 6 As shown, a plurality of control air chambers 205 are slidably equipped with driving piston blocks 209. The driving piston blocks 209 slide in the control air chambers 205 to compress and transport the air in the control air chambers 205.

[0051] like Figures 3 to 6As shown, a connecting spring 210 is fixedly connected between the driving piston block 209 and the linkage air guide 203, and the connecting spring 210 is arranged below the driving piston block 209. The connecting spring 210 serves to connect the driving piston block 209 and the linkage air guide 203, and the driving piston block 209 is supported and limited by the contraction and reset of the connecting spring 210.

[0052] like Figures 3 to 7 As shown, a plurality of linkage air guides 203 and the explosion-proof cushion airbag layer 202 are connected with a conducting air pipe 211, and the conducting air pipe 211 is connected with the control air cavity 205. The conducting air pipe 211 serves to connect the explosion-proof cushion airbag layer 202 with the control air cavity 205, so that the air in the explosion-proof cushion airbag layer 202 is transported to the control air cavity 205 along the conducting air pipe 211, thereby facilitating the pushing control of the driving piston block 209.

[0053] like Figures 3 to 7 As shown, a jet fire extinguishing assembly is fixedly mounted on the inner wall of the explosion-proof inner shell 201 , and the jet fire extinguishing assembly is connected to the compressed air chamber 204 .

[0054] like Figures 3 to 7 As shown, the jet fire extinguishing assembly includes a jet deflector 212, which is fixedly mounted on the inner wall of the explosion-proof inner shell 201 and arranged between a pair of gas collecting members 301. The jet deflector 212 plays a role in assembling and fixing the storage airbag 213.

[0055] like Figures 3 to 7 As shown, a storage airbag 213 is fixedly installed in the spray deflector 212. The storage airbag 213 plays the role of storing, limiting, spraying and conveying the dry powder fire extinguishing agent 214.

[0056] like Figures 3 to 7 As shown, the storage airbag 213 is filled with a dry powder fire extinguishing agent 214. By spraying the dry powder fire extinguishing agent 214 into the explosion-proof inner shell 201, the electrical products that explode in the explosion-proof inner shell 201 are extinguished and protected from combustion and explosion, thereby improving the explosion-proof protection effect of the electrical products.

[0057] like Figures 3 to 7 As shown, a connecting air pipe 215 is connected between the storage air bag 213 and the compressed air cavity 204. The connecting air pipe 215 serves to connect the storage air bag 213 and the compressed air cavity 204, so that the air in the compressed air cavity 204 is transported to the storage air bag 213 along the connecting air pipe 215.

[0058] like Figures 1 to 4As shown, the pressure relief and flow guiding mechanism 3 is fixedly assembled on the outside of the test box 1, and the pressure relief and flow guiding mechanism 3 includes a pair of gas collecting pieces 301, and the pair of gas collecting pieces 301 are fixedly assembled on the inner wall of the explosion-proof inner shell 201. The exhaust gas generated during the test in the explosion-proof inner shell 201 is collected and guided by the pair of gas collecting pieces 301.

[0059] The side wall of the gas collecting member 301 is provided with an exhaust gas guiding cavity, which is connected to the exhaust pipe 302. The exhaust gas generated during the electrical product testing process in the explosion-proof inner shell 201 is guided through the exhaust gas guiding cavity.

[0060] like Figures 1 to 4 As shown, one end of a pair of gas collecting parts 301 outside the test box 1 is plugged with an exhaust pipe 302. The exhaust pipe 302 connects the gas collecting parts 301 with the air guide dust removal pipe 305, so that the exhaust gas collected by the gas collecting parts 301 can be transported to the air guide dust removal pipe 305 along the exhaust pipe 302.

[0061] like Figures 1 to 4 As shown, a sealing plate 303 is hingedly connected to one end of the exhaust pipe 302 away from the gas collecting member 301. The sealing plate 303 is used to seal and protect the exhaust pipe 302. The stability of the exhaust pipe 302 in guiding the gas collecting member 301 is improved, and the impurities falling into the exhaust pipe 302 during the dust falling process of the exhaust gas purification cylinder 304 is avoided, and the conduction stability of the exhaust pipe 302 is ensured.

[0062] like Figures 1 to 4 As shown, one end of a pair of exhaust pipes 302 away from the air collecting member 301 is connected to an exhaust gas purification guide component, and the exhaust gas purification guide component is connected to the linkage air guide component 203.

[0063] like Figures 1 to 4 As shown, the exhaust gas purification guide assembly includes an exhaust gas purification cartridge 304, which is fixedly mounted on the side wall of the test box 1. The exhaust gas purification cartridge 304 provides a purification space for the exhaust gas collected by the gas collecting member 301, thereby improving the environmental protection and safety of the explosion-proof electrical product test box.

[0064] like Figures 1 to 4 As shown, an air guide dust removal pipe 305 is fixedly connected to the lower part of the exhaust gas purification cylinder 304, and the air guide dust removal pipe 305 is connected to the exhaust pipe 302. The air guide dust removal pipe 305 serves to connect the exhaust gas purification cylinder 304 and the exhaust pipe 302, so as to facilitate the exhaust gas collected by the gas collecting member 301 to be guided into the exhaust gas purification cylinder 304. At the same time, the impurities filtered out in the exhaust gas purification cylinder 304 can be guided and collected by the air guide dust removal pipe 305.

[0065] like Figures 1 to 4As shown, the lower end of the air guide dust removal pipe 305 is threadedly connected with a dust storage barrel 306, and the dust storage barrel 306 is arranged below the exhaust pipe 302. The dust storage barrel 306 collects impurities filtered out in the exhaust gas purification barrel 304.

[0066] like Figures 1 to 5 As shown, an assembly shaft 307 is rotatably mounted in the exhaust gas purification cartridge 304. The assembly shaft 307 plays the role of assembling, fixing and rotating driving the multiple assembly frames 308.

[0067] like Figures 1 to 5 As shown, multiple sets of evenly distributed assembly frames 308 are fixedly assembled on the outer side of the assembly shaft 307. The multiple sets of assembly frames 308 play a role in assembling and fixing the filter screen 309.

[0068] like Figures 1 to 5 As shown, filter screens 309 are fixedly installed in the multiple assembly frames 308. The exhaust gas in the exhaust gas purification cylinder 304 is filtered for impurities by the rotation of the multiple assembly frames 308.

[0069] like Figures 1 to 5 As shown, an exhaust fan 310 is installed above the multiple assembly frames 308. The exhaust fan 310 is controlled to extract and guide the air in the exhaust gas purification cylinder 304, so as to facilitate the collection and extraction of the exhaust gas in the explosion-proof inner shell 201.

[0070] like Figures 1 to 5 As shown, an exhaust gas guide pipe 311 is fixedly connected to the upper part of the exhaust gas purification cylinder 304. The exhaust gas guide pipe 311 serves to connect the three-way connection end 312 with the exhaust gas purification cylinder 304, so as to facilitate the flow and transportation of the exhaust gas filtered in the exhaust gas purification cylinder 304.

[0071] like Figures 1 to 5 As shown, one end of the exhaust gas guide pipe 311 away from the exhaust gas purification cylinder 304 is fixedly connected with a three-way connection end 312. The three-way connection end 312 serves to connect the exhaust gas guide pipe 311 with the exhaust gas purification cylinder 304, so as to facilitate the delivery of the purified exhaust gas guided in the exhaust gas guide pipe 311 to the one-way air inlet pipe 313.

[0072] like Figures 8 to 9 As shown, a one-way air inlet pipe 313 is connected between the three-way connecting end 312 and the compressed air chamber 204. The one-way air inlet pipe 313 serves to connect the three-way connecting end 312 and the compressed air chamber 204, so as to facilitate the transportation of the purified exhaust gas transported in the three-way connecting end 312 to the compressed air chamber 204, thereby facilitating the driving control of the compression piston block 207.

[0073] like Figures 8 to 9As shown, one end of the one-way air inlet pipe 313 close to the three-way connection end 312 is fixedly connected to a limit filter 314. The limit filter 314 plays a role of sliding limit for the T-shaped assembly rod 315 and the support spring 316.

[0074] like Figures 8 to 9 As shown, a T-shaped assembly rod 315 is inserted into the limiting filter screen 314. The T-shaped assembly rod 315 plays a role in supporting, fixing and moving the blocking block 317.

[0075] like Figures 8 to 9 As shown, a support spring 316 is sleeved on the outer side of the T-shaped assembly rod 315. The T-shaped assembly rod 315 is supported and limited by the contraction and reset of the support spring 316.

[0076] like Figures 8 to 9 As shown, one end of the T-shaped assembly rod 315 located in the one-way air inlet pipe 313 is fixedly connected with a blocking block 317, and the blocking block 317 is arranged in cooperation with the three-way connection end 312. The one-way air inlet pipe 313 is closed and limited by the blocking block 317, so that the conduction state of the one-way air inlet pipe 313 is controlled by controlling the movement of the blocking block 317.

[0077] like Figures 8 to 10 As shown, the dust removal and cooling mechanism 4 is assembled in the explosion-proof inner shell 201, and the dust removal and cooling mechanism 4 is used to perform dust removal and cooling treatment on the electrical products.

[0078] like Figures 8 to 10 As shown, the dust removal and cooling mechanism 4 includes a test bench 401, which is fixedly installed directly below the spray deflector 212. The test bench 401 is hollow, and a supporting net 402 is fixedly installed above the test bench 401. The electrical product to be tested is supported and limited by the cooperation between the test bench 401 and the supporting net 402. At the same time, the electrical product to be tested can be dusted and cooled by blowing air through the supporting net 402.

[0079] like Figure 11 to Figure 12 As shown, a blow pipe 403 is fixedly connected to one side of the test bench 401. The blow pipe 403 delivers gas into the test bench 401, so as to facilitate the blow treatment of the electrical product to be tested.

[0080] like Figure 11 to Figure 12 As shown, one end of the air blowing pipe 403 outside the test box 1 is fixedly connected to a one-way exhaust pipe 404. The one-way exhaust pipe 404 serves to connect the air blowing pipe 403 with the pressure relief exhaust pipe 405. The one-way exhaust pipe 404 is connected to the compressed air cavity 204 via the pressure relief exhaust pipe 405. The compressed air cavity 204 is depressurized and exhausted through the pressure relief exhaust pipe 405.

[0081] like Figure 11 to Figure 12As shown, one end of the one-way exhaust pipe 404 close to the pressure relief exhaust pipe 405 is fixedly connected with an exhaust limiter net 406. The exhaust limiter net 406 plays a role of sliding limit for the limiter assembly rod 407.

[0082] like Figure 11 to Figure 12 As shown, a limiting assembly rod 407 is inserted into the exhaust limiting net 406. The limiting assembly rod 407 plays the role of assembling and fixing the exhaust blocking block 409 and limiting the movement.

[0083] like Figure 11 to Figure 12 As shown, an exhaust limit spring 408 is sleeved on the outer side of the limit assembly rod 407. The limit assembly rod 407 is supported and reset by the contraction and reset of the exhaust limit spring 408.

[0084] like Figure 11 to Figure 12 As shown, one end of the limit assembly rod 407 away from the exhaust limit spring 408 is fixedly connected to an exhaust blocking block 409, and the exhaust blocking block 409 is arranged in cooperation with the pressure relief exhaust pipe 405. The conduction state of the pressure relief exhaust pipe 405 is controlled by the exhaust blocking block 409.

[0085] In specific use, when it is necessary to test an electrical product, the sealed box door 101 is opened, and the electrical product to be tested is placed on the supporting net 402. Subsequently, a reliability test can be performed on the electrical product. When the electrical product to be tested explodes during the test in the explosion-proof electrical product test box, the electrical product can be explosion-protected by the explosion-proof inner shell 201.

[0086] When an electrical product in the explosion-proof inner shell 201 explodes, the explosion-proof inner shell 201 can squeeze the explosion-proof buffer airbag layer 202 under the impact of the explosion and the action of high-temperature gas, and the explosion-proof buffer airbag layer 202 shrinks to buffer and absorb energy for the explosion-proof inner shell 201. In addition, the explosion-proof inner shell 201 is buffered and shock-absorbed by the shrinkage and reset of multiple elastic damping blocks 206, thereby improving the safety of the explosion-proof electrical product test box.

[0087] At the same time, when the explosion-proof buffer airbag layer 202 shrinks under the squeezing action of the explosion-proof inner shell 201, the gas in the explosion-proof buffer airbag layer 202 can be transported along the air pipe 211 to the multiple control air cavities 205, and the driving piston blocks 209 in the multiple control air cavities 205 can move under the action of the gas in the air pipe 211, and compress the gas in the control air cavity 205. The gas in the control air cavity 205 can be transported along the connecting hole to the compression air cavity 204 under the action of the driving piston block 209, thereby pneumatically pushing and controlling the compression piston block 207.

[0088] By pushing the compression piston block 207, the gas in the compression air chamber 204 can be transported to the storage air bag 213 along the connecting air pipe 215, so that the storage air bag 213 expands under the action of inflation, and when the storage air bag 213 expands to the limit state, the dry powder fire extinguishing agent 214 will be sprayed toward the electrical product under the action of air pressure as the storage air bag 213 ruptures, thereby providing fire extinguishing and explosion-proof protection for the electrical product.

[0089] At the same time, the exhaust gas generated by the test in the explosion-proof inner shell 201 and a large amount of other gases generated during the combustion and explosion process can be collected and diverted by controlling the operation of the exhaust fan 310. The exhaust gas in the explosion-proof inner shell 201 can be transported to the exhaust gas purification cylinder 304 along the gas collecting piece 301, the exhaust pipe 302, and the air guide dust removal pipe 305, and filtered through multiple groups of filter screens 309. The filtered exhaust gas can be transported to the compressed air chamber 204 along the exhaust gas guide pipe 311, the three-way connecting end 312, and the one-way air inlet pipe 313, thereby further improving the effect of spraying and transporting the dry powder fire extinguishing agent 214.

[0090] In addition, the filtered exhaust gas in the exhaust gas purification cylinder 304 is continuously transported to the compressed air chamber 204 under the action of the exhaust fan 310, and part of the gas will be transported to the control air chamber 205 along the connecting hole. The connecting spring 210 is compressed and moved by transporting gas into the control air chamber 205. The gas under the connecting spring 210 can flow back to the explosion-proof buffer airbag layer 202 along the guide air pipe 211 as the driving piston block 209 moves. The explosion-proof buffer airbag layer 202 is expanded by transporting gas into the explosion-proof buffer airbag layer 202. The expansion of the explosion-proof buffer airbag layer 202 can correct the deformation of the explosion-proof inner shell 201.

[0091] Finally, when the driving piston block 209 and the compression piston block 207 move to the limit position under the action of gas, the filtered exhaust gas delivered by the one-way air intake pipe 313 can be delivered along the pressure relief exhaust pipe 405, and the exhaust blocking block 409 moves under the action of gas pressure, so that the one-way exhaust pipe 404 and the pressure relief exhaust pipe 405 are in a conducting state. That is, the filtered exhaust gas delivered by the one-way air intake pipe 313 can be delivered to the test bench 401 along the pressure relief exhaust pipe 405, the one-way exhaust pipe 404, and the blowing pipe 403. By blowing air to the electrical product through the test bench 401, not only can the electrical product be cleaned, but also the electrical product can be cooled, which provides convenience for the subsequent removal of the electrical product.

[0092] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0093] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An explosion-proof electrical product test box, characterized in that: include: A test box, one side of which is hingedly equipped with a sealed door; A self-shrinking explosion-proof test mechanism is fixedly assembled in the test box, the self-shrinking explosion-proof test mechanism comprises an explosion-proof inner shell, the explosion-proof inner shell is fixedly assembled in the test box, an explosion-proof buffer airbag layer is fixedly connected between the explosion-proof inner shell and the inner wall of the test box, a linkage air guide is fixedly assembled on the top of the test box, a compressed air cavity is opened in the linkage air guide, a plurality of evenly distributed control air cavities are opened in the linkage air guide, and the plurality of control air cavities are evenly arranged on the outside of the compressed air cavity, a jet fire extinguishing assembly is fixedly assembled on the inner wall of the explosion-proof inner shell, and the jet fire extinguishing assembly is connected to the compressed air cavity; A plurality of uniformly distributed elastic damping blocks are fixedly installed in the explosion-proof buffer airbag layer, and the plurality of elastic damping blocks are all hollow, and a conical exhaust hole is provided on the outer side of the plurality of elastic damping blocks, and the diameter of the conical exhaust hole at one end outside the elastic damping block is smaller than the diameter of the other end. A plurality of connecting holes are provided in the linkage air guide, and the compression air chamber is communicated with the plurality of control air chambers through the connecting holes. A compression piston block is slidably installed in the compression air chamber, and a return spring is fixedly connected between the compression piston block and the linkage air guide, and the return spring is arranged above the compression piston block. A driving piston block is installed, a connecting spring is fixedly connected between the driving piston block and the linkage air guide, the connecting spring is arranged below the driving piston block, a plurality of linkage air guides are connected with air guide pipes between the explosion-proof buffer airbag layer, the air guide pipes are connected with the control air cavity, the jet fire extinguishing assembly includes a jet guide cover, the jet guide cover is fixedly installed on the inner wall of the explosion-proof inner shell, and the jet guide cover is arranged between a pair of air collecting parts, a storage air bag is fixedly installed in the jet guide cover, the storage air bag is filled with dry powder fire extinguishing agent, and a connecting air pipe is connected between the storage air bag and the compressed air cavity; A pressure relief and flow guiding mechanism is fixedly mounted on the outside of the test box, and the pressure relief and flow guiding mechanism includes a pair of gas collecting parts, which are fixedly mounted on the inner wall of the explosion-proof inner shell, and the ends of the pair of gas collecting parts outside the test box are both plugged with exhaust pipes, and the ends of the pair of exhaust pipes away from the gas collecting parts are both connected to exhaust gas purification and flow guiding components, and the exhaust gas purification and flow guiding components are in conduction with the linkage gas guiding parts; The dust removal and cooling mechanism is assembled in the explosion-proof inner shell, and is used for performing dust removal and cooling treatment on the electrical products.

2. The explosion-proof electrical product test box according to claim 1, characterized in that: An exhaust gas guide cavity is provided on the side wall of the gas collecting member, and the exhaust gas guide cavity is communicated with the exhaust pipe. A sealing plate is hingedly connected to one end of the exhaust pipe away from the gas collecting member.

3. The explosion-proof electrical product test box according to claim 2, characterized in that: The exhaust gas purification and diversion assembly includes an exhaust gas purification cylinder, which is fixedly mounted on the side wall of the test box. An air guide and dust collection pipe is fixedly connected to the bottom of the exhaust gas purification cylinder. The air guide and dust collection pipe is connected to the exhaust pipe. The lower end of the air guide and dust collection pipe is threadedly connected to a dust storage cylinder, and the dust storage cylinder is arranged below the exhaust pipe.

4. The explosion-proof electrical product test box according to claim 3, characterized in that: An assembly shaft is rotatably mounted in the exhaust gas purification cylinder, and multiple groups of evenly distributed assembly frames are fixedly mounted on the outer side of the assembly shaft, and filter screens are fixedly mounted in the multiple groups of assembly frames.

5. The explosion-proof electrical product test box according to claim 4, characterized in that: Exhaust fans are installed on the top of the multiple groups of assembly frames, an exhaust gas guide pipe is fixedly connected to the top of the exhaust gas purification tube, and a three-way connecting end is fixedly connected to the end of the exhaust gas guide pipe away from the exhaust gas purification tube.

6. The explosion-proof electrical product test box according to claim 5, characterized in that: A one-way air inlet pipe is connected between the three-way connecting end and the compressed air cavity, and one end of the one-way air inlet pipe close to the three-way connecting end is fixedly connected to a limited filter screen, a T-shaped assembly rod is inserted in the limited filter screen, a supporting spring is sleeved on the outer side of the T-shaped assembly rod, and one end of the T-shaped assembly rod located in the one-way air inlet pipe is fixedly connected to a blocking block, and the blocking block is arranged in cooperation with the three-way connecting end.

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