121 results about "Explosion protection" patented technology

The present invention discloses a portable explosion protection device for underground ore mining, which relates to the field of mine blasting technology. The device comprises a protection unit for cooperating with the mine tunnel ground to form a sealed protection space, providing all-round and no-dead-angle protection for personnel entering the protection space. The protection unit can be folded and retracted, and the protection device is configured as a semicircular structure, cooperating with the ground to form a sealed protection space, which has a good protection effect on personnel. The semicircular structure can guide air flow more smoothly and has less resistance to wind, thereby reducing the airflow impact on the protective cover during explosion, and the device can be folded and carried.

The invention relates to a level measuring device (1) for determining a level (L) of a filling material (2), which comprises the following components: - A high-frequency unit (10) for generating and transmitting radar signals (S HF ) along a beam axis (a) towards the filling material (2), and for receiving corresponding reception signals (R HF ) after reflection at the product surface, - an evaluation unit for determining the fill level (L) based on the received signal (R HF ), and - two radar lenses (11, 12) arranged one behind the other in the beam axis (a). According to the invention, the apertures of the radar lenses (11, 12) are selected such that their distance (b 11 + f 12 ) to each other the sum of the image distance (b 11 ) of the first radar lens (11), and the focal length (f 12 ) of the second radar lens (12). This allows the radar signals (S HF , R HF) through a thermally insulating housing neck (131). Furthermore, the inventive design of the apertures within the housing neck (131) allows a radar window (14) serving as explosion protection to be arranged in such a way that the beam guidance is only minimally restricted.

The invention relates to the technical field of explosion prevention, and discloses an explosion splash protection structure, which comprises a fixed frame, a first fixed part and a second fixed part, and is characterized in that the fixed frame comprises a top frame, at least three support columns for supporting the top frame, and the first fixed part and the second fixed part are used for supporting the top frame; the first fixing piece and the second fixing piece are fixedly connected to the top frame and / or the supporting columns. And the protective net bodies are arranged between every two adjacent supporting columns, and the protective net bodies are connected with the fixing frame through first fixing pieces and second fixing pieces correspondingly. The protection structure provided by the invention can realize certain deflection and buffering on explosion splashes, so that a better interception effect on the explosion splashes is achieved.

The utility model discloses an experimental device for anti-explosion protection of an arch dam, and belongs to the field of simulation explosion tests. The experimental device comprises a fixing mechanism, an explosive module, a displacement sensor module and an acceleration sensor module, wherein the fixing mechanism is used for supporting a high polymer plate; the explosive module is arranged above the high polymer plate and is used for carrying out an anti-explosion test on the high polymer plate; the displacement sensor module and the acceleration sensor module are fixedly mounted on the high polymer plate; the shock wave sensor modules are symmetrically arranged on the two sides of the high polymer plate. According to the experimental device, shock wave sensor modules are installed on the upper side and the lower side of a high polymer plate, an explosive module is installed above the high polymer plate, the explosive module is detonated through an exploder, shock waves on the explosion facing face and the explosion backing face of the high polymer plate are detected through the shock wave sensor modules on the two sides, and displacement data are tested through a displacement sensor module. Acceleration data are tested through the acceleration sensor module, so that comprehensive anti-explosion analysis is carried out on the high polymer plate, and the method is more comprehensive and fine.

The present invention discloses an underground engineering protection structure and method for enhancing the total reflection of explosion stress waves, belonging to the technical field of underground engineering anti-explosion protection. The structure comprises a plurality of fracturing devices arranged in multiple rows on a horizontal plane projection, with adjacent rows of fracturing devices arranged in a staggered manner. The fracturing devices comprise a fracturing disk and a conduit, the conduit being connected to the center of the fracturing disk, and the fracturing disks on the adjacent rows of fracturing devices being orthogonal. The conduit is provided with a detonating cord, and the chamber inside the fracturing disk comprises an annular explosive chamber arranged on the periphery and an annular detonator chamber arranged between the explosive chamber and the conduit. When the fracturing disk is in an inclined state and undergoes a fracturing explosion, a fracture surface extending in an inclined direction is formed. When the explosion stress wave propagates to the lower surrounding rock, it forms a large-angle incidence with these inclined intersecting fracture surfaces. According to wave theory, the inclined fracture surface greatly increases the reflection effect of the stress wave, effectively reducing the impact of the explosion on the underground engineering.

The invention relates to the technical field of inverters, and discloses an anti-explosion inverter which comprises an anti-explosion inverter body, the anti-explosion inverter body comprises an inversion unit, an anti-explosion unit is arranged on the surface of the inversion unit, and a heat dissipation unit is arranged on the surface of the anti-explosion unit. According to the explosion-proof inverter, through the multi-stage linkage type explosion-proof structure, the electrostatic adsorption and mechanical wiping combined self-cleaning heat dissipation system and the modular collaborative optimization design, the traditional limitation is broken through, and compared with the prior art, the effects that the stress of the explosion-proof shell is more uniform, the deformation quantity is reduced, the heat dissipation efficiency retention rate is remarkably improved, and the maintenance time is greatly shortened are achieved; the environmental adaptability is enhanced, the problems of insufficient explosion prevention, heat dissipation attenuation, complex maintenance and the like of the traditional explosion-proof inverter are effectively solved, and a new design normal form is provided.

1. Name of the product in this design: Explosion-proof ball. 2. Application of this design: This design is for explosion protection. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model discloses a kind of anti-explosion protection devices when gas cylinder is inflated, belong to anti-explosion safety technical field, including explosion-proof cabinet and the cabinet door being rotationally arranged at the opening of the explosion-proof cabinet, the side of the cabinet door towards cabinet is provided with explosion-proof mechanism, the explosion-proof mechanism includes: explosion-proof bucket, the explosion-proof bucket is detachably fixed on the cabinet door;The anti-explosion protection device when the gas cylinder is inflated is directly installed on the cabinet door that can be rotated outward, and the bottom plate driven by cylinder and the clamping limiting structure composed of C-shaped clamping rod are arranged at the bottom of explosion-proof bucket, realize the coherent operation of "open door just put bottle, close door just anti-explosion, one key just jacking ": when cabinet door is opened, explosion-proof bucket is stretched out cabinet body, and operator can put gas cylinder vertically into without exploring into narrow space, whole process does not need manual lifting or secondary handling, significantly reduce labor intensity, simultaneously avoid the explosion risk caused by gas cylinder dumping or impact during inflation process.

The invention relates to the technical field of anti-explosion controllers, in particular to a display device with an anti-impact anti-explosion protection function, which comprises an anti-explosion rear shell and an anti-explosion panel, a sealed anti-explosion cavity is formed between the anti-explosion rear shell and the anti-explosion panel, a liquid crystal screen is arranged on the anti-explosion panel, the liquid crystal screen is connected with a touch screen and window glass, and the anti-explosion panel is connected with the touch screen and the window glass. A glass body of the window glass is explosion-proof glass, due to the fact that the window glass is thick and heavy, a large gap needs to be reserved in the installation process so that it can be guaranteed that the position of the window glass can be adjusted, meanwhile, a large glue solution flowing gap can be formed, a thick buffer layer can be formed after glue injection is completed, 6101 type epoxy resin glue is selected as the glue solution, and the glass body is not damaged. The window glass has low initial viscosity and high aging resistance after curing, and in the mounting process, the gap between the window glass and the window glass mounting groove is filled with the supporting framework, so that the position of the window glass is controlled.

A limiting circuit, particularly for a power supply, includes a first reverse-polarized Zener diode connected and configured to limit a voltage between two output terminals depending on a first breakdown voltage, a second reverse-polarized Zener connected and configured to limit a voltage between two output terminals depending on a second breakdown voltage, a semiconductor switch coupled in series with the second Zener diode to open or close depending on a switching signal, a first shunt resistor coupled in a load path and with the first and second Zener diodes to carry the load current and the currents flowing through the first and second Zener diodes, and a comparating device configured to generate the switching signal depending on a voltage drop over the first shunt resistor.

The utility model relates to the technical field of smelting furnaces, and discloses a smelting furnace with an explosion-proof device, which comprises a smelting furnace body, a sliding door is arranged on the front side of the smelting furnace body, an observation window is arranged on the outer surface of the sliding door, and a pressure relief mechanism is arranged on the side wall of the smelting furnace body. According to the smelting furnace with the explosion-proof device, a plurality of groups of volute spiral springs in mirror symmetry and a movable sleeve are in linkage design, when the pressure in the furnace is abnormal, generated high-temperature and high-pressure airflow pushes a semicircular baffle to rotate, pressure relief work is gradually completed in a multi-stage pipeline, and cooling is achieved in a cooling box in cooperation with a U-shaped pipe; and the structure has the characteristics of multi-stage buffering and quick response, so that the detonation risk caused by an instantaneous pressure peak value can be avoided, the pressure balance in the furnace can be maintained through directional pressure relief, and the safety redundancy in the smelting process is remarkably improved.

The invention discloses a flexible portable explosion protection device capable of being rapidly inflated, folded and unfolded, and relates to the field of explosion impact protection. The device comprises a protection structure, a bracelet, an unlocking button and a gas generator, the protection structure is divided into a folded state and an unfolded state, the protection structure is in a cuboid or cylindrical shape in the folded state and covers the shoulders and the chest after being unfolded, and the gas generator releases gas to drive the protection structure to be rapidly unfolded by pressing the unlocking button; the protective structure is made of a fiber reinforced flexible resin composite material plate, and a high-storage-ratio design is realized by combining a Sanpu paper folding technology. According to the invention, the survivability of a protected object under the attack of unmanned aerial vehicle bombs or short-distance grenades and grenade fragments can be remarkably improved, and the device has the advantages of light weight, quick response, comprehensive protection and efficient storage.

1. Name of the product in this design: Tracked Robot. 2. Application of this design: Robots used in fire fighting, explosion protection, inspection, transportation and other operations. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention relates to the technical field of explosion protection, and discloses an anti-explosion protection device which comprises a vibration reduction partition and a buffer mechanism. The vibration reduction partition comprises a vibration reduction frame and a vibration reduction assembly, a vibration reduction cavity is formed in the vibration reduction frame, the vibration reduction assembly is arranged in the vibration reduction cavity, the vibration reduction assembly comprises elastic pieces and a mass block, the elastic pieces are supported between the vibration reduction frame and the mass block, and the elastic pieces are supported on the two opposite sides of the mass block in the anti-explosion direction of the vibration reduction frame. A deformation gap for deformation of the vibration reduction frame is reserved between the mass block and the vibration reduction frame. The buffering mechanism comprises a mounting assembly, energy absorption connecting pieces and buffering assemblies, the mounting assembly comprises a mounting frame and a connecting frame, one end of each buffering assembly is hinged to the mounting frame, the other end of each buffering assembly is hinged to the connecting frame, each buffering assembly is connected with the corresponding energy absorption connecting piece, and the buffering assemblies are used for being folded under the condition that the damping partition is impacted. And the energy absorption connecting piece is driven to generate elastic deformation.

The utility model provides a positive pressure controller and an explosion-proof device, and relates to the technical field of explosion-proof safety. The positive voltage controller comprises a substrate, a power supply circuit, a purging circuit, a detection circuit, a prompt circuit and a switch assembly. Wherein the power supply circuit, the purging circuit, the detection circuit, the prompt circuit and the switch assembly are arranged on the substrate; the power supply circuit is connected with the purging circuit, the detection circuit and the prompt circuit; the power supply circuit is connected with a control power supply of an external tested device through the switch assembly. The purging circuit is used for replacing gas in an electric control chamber of the tested equipment; the detection circuit is used for detecting the pressure of the electric control chamber to obtain a pressure value; wherein under the condition that the pressure value is greater than or equal to a preset value, the control power supply is conducted by the switch assembly; under the condition that the pressure value is smaller than a preset value, the prompt circuit generates a prompt signal, and the power supply circuit sends the prompt signal to external control equipment connected with the power supply circuit; and turning off the control power supply by the switch assembly.

The utility model discloses an easily assembled anti-explosion cable reel, the anti-explosion cable reel carries out modular design to internal anti-explosion protection electrical component, integrates protection switch in an independent anti-explosion inner bag assembly, can carry out preassembly and test before loading into cable reel body, only needs to put the preassembled whole anti-explosion inner bag assembly from the installation mouth into the accommodation cavity, then through the inner bag flange, one -time fixed to the push hand frame and cable reel body, can greatly reduce the part quantity and complexity of on -line assembly, reduces assembly difficulty and work hour, is favorable to scale production, and moreover seals the component that the electric spark is most likely to produce in the anti -explosion inner bag cavity formed by anti -explosion inner bag assembly completely, makes protection switch action executing mechanism and external environment isolated, significantly promotes the safety level in the flammable and explosive environment, can control the on -off electricity of whole cable reel safely through handle switch outside, satisfies anti -explosion requirement, and also satisfies the operation convenience requirement.

The present application relates to cable joint technical field, disclose a kind of 10kv cable joint is used to prevent explosion protection device, comprising: explosion-proof joint, the detachable connection of sealing plug is detachably connected in the top of explosion-proof joint, butt connector is fixedly installed in the inner cavity of explosion-proof joint, two threaded interfaces are opened symmetrically in the outer circular surface of explosion-proof joint, the axial force generated in the locking process of rotating extension sleeve and butt sleeve pushes armored ring to insert into first armored sleeve inside in the present application, the radial shrinkage of armored ring structure occurs under the limiting action of first armored sleeve, tightly abuts to the outer circular surface of cable, while the metal spring of second armored sleeve end moves when it moves to first armored sleeve, it is guided under chamfer and slides into the inner ring of first armored sleeve and is connected in annular groove, realize the dead lock positioning of both, the structure movement of this double armored locking avoids the problems that cable end and connecting head are only conventionally set, easy to appear and connection loose.

Outdoor unit (1) for a heat displacement system, comprising a housing and at least two housing sections separated from one another, wherein a ventilation duct, a fan (5) and an air-flowable heat exchanger are arranged in a first housing section (2), and wherein the ventilation duct has a non-closable inlet area and a non-closable outlet area for outside air, and wherein a refrigerant compressor and an expansion valve as well as connections for fluid lines for at least one heat sink and at least one heat source are arranged in a second housing section (3), and wherein a separating device is provided between the first and the second housing section, which separates the two gas spaces of the first and the second housing section and optionally further housing sections from one another, the separating device having a non-closable connecting opening (6) in the lower area,which hydraulically connects the first housing section (2) with the second housing section (3), wherein the fan (5) is designed and equipped to run continuously without stopping, and has its own uninterruptible power supply and explosion protection equipment, and the non-closable connecting opening (6) in the separating device is hydraulically connected to the suction side of the fan (5), and the second housing section (3) has an air inlet opening for outside air.

The invention provides a magnesium-based solid hydrogen storage rapid dehydrogenation system rapidly heated by Joule heat, and relates to the technical field of solid hydrogen storage. Comprising a computer, a glove box, a Joule hot solid hydrogen storage tank arranged in the glove box, a programmable regulation and control output direct-current power supply, a hydrogen mass flow meter and a signal integrated collector, and the computer is arranged outside the glove box. The hydrogen storage tank is respectively connected with the power supply and the flowmeter, and the signal integrated collector is respectively connected with the computer, the hydrogen storage tank, the power supply and the flowmeter. And an argon atmosphere is arranged in the glove box for insulation and explosion prevention. A resistance heating element is arranged in the hydrogen storage tank; a power supply is electrified to generate Joule heat to heat a hydrogen storage material; the flow meter measures and outputs a hydrogen mass flow signal; the signal integration collector collects the environment temperature, the tabletting temperature, the carbon felt temperature, the hydrogen flow and the electric load information in the tank. The computer reads and outputs real-time regulation and control signals to the power supply, and closed-loop control over the temperature and the gas flow is achieved. The energy consumption is reduced, the temperature rise and hydrogen desorption response is improved, and the system is simplified.

This invention discloses a method and system for configuring the cooling capacity of a battery compartment air conditioning system based on thermal runaway simulation, specifically relating to the field of battery compartment thermal management safety technology. It addresses the problem that existing air conditioning cooling capacity configuration methods only consider a single heat load while neglecting the coordination of multiple safety objectives. By establishing a battery thermal runaway simulation model to obtain distribution data of heat load, combustible gas concentration, and cabin pressure, multi-objective conflict analysis is used to identify logical conflicts between cooling, explosion protection, and smoke extraction objectives. The impact of these conflicts on system performance is assessed, and the interference relationship between the air conditioning and smoke extraction systems is quantified. Finally, the air conditioning cooling capacity configuration value that coordinates multiple safety objectives is determined. This achieves coordinated operation of the air conditioning system with the gas control and smoke extraction systems, effectively improving the overall safety protection capability of the battery compartment.

The inert gas explosion-proof protection system for the ultra-large oil tanker is applied to the field of ships, dynamic adjustment of the water seal depth is achieved through a segmentation barrel and a hydraulic cylinder, in the gas injection sealing stage, the segmentation barrel and a gas injection pipe are matched to lift up seawater on the upper portion of a tower body, the seawater below the segmentation barrel is made to conduct water seal on the gas injection pipe, and the water seal effect is achieved. Therefore, the water seal depth of the gas injection pipe is reduced, the back pressure which needs to be overcome when the air blower conveys inert gas is reduced, the operation power of the air blower is reduced, the purposes of saving energy and reducing consumption are achieved, and during static sealing, the water seal effect is further improved by increasing the water seal depth. Besides, through a safety pipe and a normally-open solenoid valve on the hydraulic cylinder, under the condition of sudden power failure, the self weight of the segmentation barrel and the weight of seawater in the segmentation barrel are utilized, so that the segmentation barrel moves downwards to return to the initial position and automatically returns to the water seal depth required by static sealing, and the safety and the water seal effect of the water seal tower after power failure are improved.

Battery pack, including: a housing (1) having an internal storage cavity, wherein a battery assembly (11) is arranged in the storage cavity; wherein an explosion protection area (111) is provided on the battery assembly (11); a cover plate assembly (2) which is arranged on the battery assembly (11) and covers a surface of the explosion protection area (111), such that an outlet channel (23) is formed between the cover plate assembly (2) and the surface of the explosion protection area (111), wherein the outlet channel (23) extends in the same direction as battery rows in the battery assembly (11) and each outlet channel (23) corresponds one to one to each battery row.

The present application relates to a kind of polyurethane-liquid filled explosion protection structure, belong to public safety defense equipment technical field.It includes flexible shell, polyurethane foam ball and liquid;Polyurethane foam ball and liquid are filled in flexible shell, column explosive is located at the center of flexible shell, detonator one end is inserted on explosive, and the other end extends to the outside of flexible shell.By selecting the polyurethane of appropriate density and liquid, and controlling the volume ratio of both, fill in flexible shell;Explosive is located at the center of shell, can effectively isolate oxygen, reduce the secondary energy release generated by explosion, reduce explosion reaction degree and its aftereffect reaction;While polyurethane and liquid cooperate to form the flexible protection structure of multiple cavities, effectively improve the energy absorption density of structure in unit protection volume, and energy absorption efficiency is high.

Battery characterized in that it comprises: a housing in which a receiving chamber is formed, wherein an explosion protection valve is provided on a side surface of the housing, and the explosion protection valve is configured to be opened at a preset pressure value; an electrode arrangement that is provided in the recording chamber; a support element provided between the side surface of the housing on which the explosion protection valve is located and the electrode assembly, wherein the support element comprises a support body having an annular shape and a vent channel enclosed and formed by the support body, wherein the vent channel is configured to cover the explosion protection valve, a plurality of projecting sections extending towards the vent channel are provided on two side sections of the support body along a width direction of the support body, and the plurality of projecting sections are arranged at intervals on the same side section along a length direction of the support element.

The invention discloses a transformer bushing explosion-proof method and system. The anti-explosion method for the transformer bushing comprises the following steps: acquiring data of internal oil pressure, hydrogen dissolved quantity and discharge energy of the transformer bushing; data of internal oil pressure, hydrogen dissolved amount and discharge energy of the transformer bushing are compared with corresponding preset thresholds; and when at least two data of the internal oil pressure, the hydrogen dissolved amount and the discharge energy are greater than or equal to the corresponding preset threshold values, controlling a circuit breaker corresponding to the transformer bushing to be disconnected so as to stop supplying the fault arc energy to the transformer bushing. According to the anti-explosion method and system for the transformer bushing, anti-explosion monitoring on the transformer bushing is realized.

The invention discloses a full-automatic ultralow-temperature anti-explosion nitrogen spraying device and system, and relates to the technical field of industrial cooling anti-explosion equipment.The full-automatic ultralow-temperature anti-explosion nitrogen spraying device comprises a nitrogen extraction module, a multi-stage cooling module, a spraying execution module, an intelligent control module and an anti-explosion protection module; and the PSA molecular sieve nitrogen making unit is connected with the air filtering pretreatment device through a pipeline. According to the full-automatic ultralow-temperature anti-explosion nitrogen spraying device and system, nitrogen is prepared on site through PSA molecular sieve nitrogen preparation, liquid nitrogen does not need to be stored, continuous operation is met, and cost and consumption are reduced; multi-stage cooling is matched with the adjustable spraying head, so that the cooling range is wide, and the accuracy is high; the risk of frostbite of personnel is eradicated through intelligent remote control, and safety and reliability are improved through an anti-explosion protection and alarm unit; the integrated design simplifies the process, and the emergency cut-off module and the multi-nozzle layout adapt to various industrial cooling and explosion-proof scenes and are safe and efficient.

The invention relates to the technical field of tunnel engineering equipment, in particular to a multifunctional operation trolley for tunnel in-situ reconstruction and extension and a construction method of the multifunctional operation trolley. One end of the second working platform is fixedly connected with a first working platform used for resisting mechanical tunneling, blasting excavation and rock burst impact, and the other end of the second working platform is provided with a third working platform used for quality monitoring and later construction; the second operation platform is connected with the third operation platform through a connecting mechanism; the bottoms of the first working platform, the second working platform and the third working platform are fixedly connected with a plurality of telescopic hydraulic cylinders, and the other ends of the telescopic hydraulic cylinders are provided with bearing rotating type walking mechanisms. By means of the bearing rotating type walking mechanism, the first working platform, the second working platform and the third working platform, full-process integrated construction of tunneling, supporting, explosion prevention, quality monitoring, later-period construction and movement in tunnel extension can be effectively achieved.

The invention discloses an underground automatic explosion-proof device dismounting touch locking method and a safety mechanism, and relates to the field of coal mine underground explosion-proof safety. The safety mechanism comprises a protective shell, a protective shell safety pin, a trigger device safety pin, a dowel bar and a shaft sleeve, the dowel bar is slidably arranged in the shaft sleeve, and the shaft sleeve is in threaded connection in the protective shell. The dowel bar, the shaft sleeve and the protective shell are provided with a first limiting hole, a second limiting hole and a third limiting hole which are coaxial, the second limiting hole is provided with an internal thread Mb, the external thread mb of the safety pin is matched with the internal thread Mb, the front ends of the two safety pins are mutually locked through connecting threads Mc / mc, one pin is screwed in to push the other pin to be screwed out, and it is ensured that one pin is always locked. The dowel bar is locked by a safety pin of the trigger device during transportation, the protective shell is locked by a safety pin of the protective shell during installation, and the trigger device needs to be locked firstly during disassembly. The safety mechanism solves the problems that a traditional safety mechanism is prone to loosening and false triggering, unlocking and locking are achieved, operation uncertainty is reduced, the safety mechanism is suitable for underground gas / coal dust explosion protection, and safety and environmental adaptability are remarkably improved.

The invention discloses an inflatable tunnel explosion-proof device with a double-layer bag body structure, and belongs to the field of explosion protection in a closed or semi-closed space. According to the structure, a plurality of inflation interference cones are fixedly connected to the front surface of a flexible sealing pressure relief main bag, the roots of the inflation interference cones communicate with one another through inflation channels, a plurality of pressure relief holes are formed in the front surface of the flexible sealing pressure relief main bag, and each pressure relief film is attached to the inner surface of the flexible sealing pressure relief main bag and covers the corresponding pressure relief hole. The pressure relief film is partially and fixedly connected with the inner surface of the flexible sealing pressure relief main bag, and the sealing auxiliary bag is fixedly attached to the peripheral side face of the flexible sealing pressure relief main bag in a shape follow-up mode. When the explosion-proof device is used, the flexible inflation supporting frameworks in the inflation interference cone, the sealing auxiliary bag and the flexible sealing pressure relief main bag are inflated, so that the explosion-proof device is unfolded. After being inflated, the explosion-proof device can be attached to the tunnel wall in shape and achieve tight plugging, a gap between the bag body and the tunnel wall is eliminated, and the overall protection effect is improved. The explosion protection device is suitable for sudden explosion protection in a closed or semi-closed space.

The invention provides a bionic anti-explosion protection unit and a protection structure.The bionic anti-explosion protection unit comprises an upper-layer pyramid structure and a lower-layer pyramid structure, the inner side of the upper-layer pyramid structure is provided with a supporting piece coinciding with the central axis of the upper-layer pyramid structure, and the supporting piece is used for transmitting impact force in the linear direction; the central axis of the lower-layer pyramid structure coincides with the central axis of the upper-layer pyramid structure, the lower-layer pyramid structure is connected to the bottom of the upper-layer pyramid structure, and a hollow part is arranged on the inner side of the lower-layer pyramid structure and used for deformation energy absorption. The upper-layer pyramid structure and the lower-layer pyramid structure form a basic two-layer overlapped pyramid unit structure, the rigidity of the upper-layer pyramid structure is enhanced by adding the supporting pieces, the lower-layer pyramid structure is provided with the hollow part, relative vacancy is kept, and the rigidity of the upper-layer pyramid structure is improved. When the structure is loaded, the structure has the staged energy absorption characteristic that the lower-layer cell elements deform firstly and then the upper-layer cell elements deform, and the deformation energy absorption capacity of the structure unit is improved.