CN116293439A

CN116293439A - Pressure vessel assembly with safety locking structure

Info

Publication number: CN116293439A
Application number: CN202310588737.9A
Authority: CN
Inventors: 孙博
Original assignee: Zibo Xinhai Machinery Manufacturing Co ltd
Current assignee: Zibo Xinhai Machinery Manufacturing Co ltd
Priority date: 2023-05-24
Filing date: 2023-05-24
Publication date: 2023-06-23
Anticipated expiration: 2043-05-24
Also published as: CN116293439B

Abstract

The invention relates to the technical field of gas storage containers, in particular to a pressure container assembly with a safety locking structure, which comprises a storage unit, wherein the storage unit is fixedly arranged in a transportation carriage in a transportation state, a plurality of safety gas storage units are locked and arranged in the storage unit, the bottom of each safety gas storage unit is safely locked in the storage unit, a middle buffer positioning mechanism is arranged between every two adjacent safety gas storage units, and a middle grid locking part is respectively arranged in a cavity of the storage unit between the adjacent safety gas storage units. The pressure container assembly designed in the invention can be conveniently and stably placed on a transport vehicle, meanwhile, the safety locking of each safety gas storage unit can be effectively ensured in the transportation process of the following vehicle, the bottom positioning locking and the middle-upper side positioning and buffering can be realized in the locking process, and the stability under the condition of bumpy transport road conditions is ensured.

Description

Pressure vessel assembly with safety locking structure

Technical Field

The invention relates to the technical field of gas storage containers, in particular to a pressure container assembly with a safety locking structure.

Background

The pressure vessel has wide application, has important roles and functions in the departments of industry, civil use, military industry and the like and many fields of scientific research, and belongs to closed equipment capable of bearing certain pressure.

The pressure vessel of traditional transportation type adopts single cavity's pressure storage tank, pressure bucket to realize the storage of gaseous material mostly. The pressure vessel needs to be quickly transferred in the process of transporting the vehicles on and off, and meanwhile, the stability of the pressure vessel needs to be controlled in the process of transporting the vehicles on.

The main structures of the existing pressure tank, pressure barrel and the like generally adopt columnar and barrel structures. For example, a novel glass fiber reinforced plastic pressure tank with a composite PE liner layer and a winding layer is disclosed in patent document with a patent publication number of CN204153131U, and the novel glass fiber reinforced plastic pressure tank mainly structurally comprises a glass fiber reinforced plastic tank body, wherein a base is arranged at the lower part of the glass fiber reinforced plastic tank body, tank openings are formed in the top and the bottom of the glass fiber reinforced plastic tank body, the glass fiber reinforced plastic tank body is composed of a liner layer and the winding layer, and the liner layer is a PE liner layer, and the tank openings and the liner layer are integrally formed.

As can be seen from the description of the prior art, the PE liner layer and the glass fiber direct roving are adopted to be mixed with the high-performance epoxy resin winding layer, so that the corrosion resistance, the crack and the leakage of the epoxy resin winding layer are improved, and the sealing performance is improved to a certain extent.

The tank structure can have good sealing effect when storing common liquid materials and solid materials, but when the tank structure is used for storing dangerous explosive gases, certain overpressure risks exist when sealing compressed gases by means of internal blocking, because the gases in a transportation state are different from the materials in a standing state, jolt and shake exist firstly in the transportation process, and then mutual collision exists between adjacent pressure tanks in the shaking process, so that the risk of collision and explosion is easily caused; the tank structure simply supported by the base in the prior art stores explosive gas, so that the safety of the explosive gas is relatively poor in the transportation process.

Therefore, the invention innovates and designs the safety problem existing in the batch transportation process of the existing pressure tank container, and the pressure tank assembly with the safety locking structure, which is applicable to the safety transportation, is developed and designed so as to better solve the problem existing in the prior art.

Disclosure of Invention

The invention aims to solve one of the technical problems, and adopts the following technical scheme: the pressure container assembly with the safety locking structure comprises a storage unit, the storage unit is fixedly placed in a transportation carriage in a transportation state, a plurality of safety gas storage units are locked and placed in the storage unit, the bottoms of the safety gas storage units are safely locked in the storage unit, a middle buffer positioning mechanism is arranged between the adjacent safety gas storage units, two sides of the middle buffer positioning mechanism are respectively abutted to corresponding side walls of the safety gas storage units at corresponding positions, a middle check locking part is respectively installed in a cavity of the storage unit between the adjacent safety gas storage units, a side buffer mechanism is respectively installed on the left side and the right side of the storage unit, and one side check locking part is respectively installed on one side of the storage unit on one side of each safety gas storage unit on two sides.

In any of the above schemes, preferably, the middle grid locking component is used for locking one side of the safety gas storage unit at the corresponding position and the bottom of the middle buffer positioning mechanism at the current position;

the Bian Buge blocking locking component is used for locking the outer side of the safety gas storage unit at the corresponding position and the bottom of the lateral buffer mechanism at the current position.

In any of the above schemes, it is preferable that each of the safety gas storage units can realize three-stage capacity expansion and decompression after being impacted by shaking in a transportation state.

In any of the above schemes, preferably, the safety gas storage unit comprises a vertical pressure tank, a sealing upper cover is arranged at the top inlet of the vertical pressure tank in a sealing way, a gas storage main cavity is arranged in the vertical pressure tank, a sealing expansion disc is horizontally arranged at the lower part of the gas storage main cavity, the sealing expansion disc is in sealing fit with the inner side wall of the gas storage main cavity through a main cavity sealing ring sleeved on the outer side wall of the sealing expansion disc, and locking blind holes are symmetrically arranged at the two sides of the outer side wall of the lower part of the vertical pressure tank;

a first capacity expansion cavity is arranged below the sealed capacity expansion disc, a plurality of first prepressing support springs are arranged in the first capacity expansion cavity at intervals, the tops of the first prepressing support springs are propped against the bottom of the sealed capacity expansion disc, the bottom of the sealed capacity expansion disc is fixedly arranged at the bottom of the gas storage main cavity, a bottom space is further arranged in the vertical pressure tank below the gas storage main cavity, a first safety valve and a second safety valve are fixedly arranged in the middle section top of the bottom space at intervals, air inlet pipelines of the first safety valve and the second safety valve are movable and penetrate into the gas storage main cavity in a sealing mode, the top inlet ends of the first safety valve and the second safety valve are positioned in the gas storage main cavity, and the lower air outlet section is positioned in the bottom space; the middle part of the bottom space is a second expansion cavity, and both sides of the bottom space are third expansion cavities;

After the temperature and pressure of the gas in the gas storage main cavity are raised and boosted due to collision or jolt, the gas in the gas storage main cavity can be guided into the second expansion cavity, and safe gas guiding and pressure reduction of the gas storage main cavity are realized.

In any of the above solutions, it is preferable that a reset type passive pushing expansion member is respectively installed in the two third expansion chambers of the vertical pressure tank, and each reset type passive pushing expansion member moves outwards and realizes expansion of the second expansion chamber after being pushed by the air pressure of the second expansion chamber on the adjacent side.

In any of the above schemes, it is preferable that a safety explosion-proof device is fixedly installed inside the storage unit below each middle grid locking component; and after the reset type passive pushing expansion pieces in the middle are pushed outwards, the safety explosion-proof device at the current position is triggered in a pushing mode.

In any of the above solutions, preferably, the reset passive pushing expansion piece includes a sealing pushing plate sealed inside the second expansion cavity, the sealing pushing plate is in sealing contact with an inner side wall of the second expansion cavity through a sealing ring on an outer side wall of the sealing pushing plate, a horizontal pushing column is fixedly installed on an outer side of the sealing pushing plate, a pushing through hole is formed in a side wall of the vertical pressure tank on an outer side of the horizontal pushing column, a third expansion cavity at a corresponding position is communicated with a cavity of an external storage unit through the pushing through hole, a pushing return spring is sleeved on an outer side wall of the horizontal pushing column, and two ends of the pushing return spring are respectively in contact with a corresponding side wall of the third expansion cavity and a corresponding side wall of the sealing pushing plate.

In any of the above schemes, preferably, the storage unit includes a storage installation base, an installation space is provided at the top of the storage installation base, the installation space is divided into a plurality of installation positioning cavities for storing and fixing the safety gas storage unit at the current position by each middle check lock component, the safety explosion-proof device is installed in a space below the middle check lock component between two adjacent installation positioning cavities in the middle, a spring pressing triggering type networking alarm is installed in a space outside the installation positioning cavities at two sides, and when the air pressure inside the safety gas storage unit at the current position exceeds a preset alarm value, each networking alarm is respectively pressed and triggered by the reset passive pressing expansion component at the corresponding position and realizes alarm and feedback of an alarm signal to a central control center of the transportation vehicle.

In any of the above schemes, preferably, the middle grid blocking locking component comprises a positioning frame fixedly installed in a space between two adjacent installation positioning cavities of the storage unit, the middle bottom of the positioning frame is a main horizontal installation part, two sides of the main horizontal installation part are respectively and integrally bent to form a vertical blocking part, a horizontal supporting part and a vertical clamping part, the two vertical clamping parts realize clamping limit of a middle buffer positioning mechanism installed between the two vertical blocking parts, a middle screwing pressing piece is respectively installed on each horizontal supporting part, the two middle screwing pressing pieces cooperate to realize pressing positioning of the bottoms of the middle buffer positioning mechanisms installed between two adjacent safety gas storage units, and a middle return locking piece is respectively installed on the left side and the right side of the main horizontal installation part of the positioning frame, and a lateral return locking piece is respectively installed in the space of the two networking alarm positions;

The lateral return locking pieces and the middle return locking pieces are respectively used for being in plug-in fit with a locking blind hole on the outer side wall of the lower part of the vertical pressure tank at the current position in a working state and locking the vertical pressure tank.

In any of the above embodiments, it is preferable that the bottom of the lateral cushion mechanism is in a state of being pressed by the lateral screwing pressing piece on the Bian Buge gear locking member when the lateral cushion mechanism is in place.

In any of the above schemes, preferably, the middle buffering positioning mechanism comprises a hollow positioning vertical seat which is vertically arranged, the bottom of the hollow positioning vertical seat is integrally and fixedly connected with a horizontal pressure bearing seat, the middle parts of the horizontal pressure bearing seat and the hollow positioning vertical seat are provided with carbon dioxide air guide pores which are arranged up and down in a penetrating way, the bottom of the carbon dioxide air guide pores is used for being hermetically sleeved on the outer side wall of the vertical air outlet pipe right below the carbon dioxide air guide pores in an installation state, and the two sides of the bottom of the horizontal pressure bearing seat realize pressing triggering of a middle return locking piece corresponding to the lower part of the horizontal pressure bearing seat under the action of a corresponding middle screwing pressing piece;

the left side and the right side of the hollow positioning vertical seat are respectively and fixedly provided with a plurality of lateral pressing springs at intervals from top to bottom, the outer end part of each lateral pressing spring is fixedly provided with a first arc pressing seat, and each first arc pressing seat is respectively used for pressing the outer side wall of the vertical pressure tank of the safety gas storage unit at the corresponding position.

In any of the above schemes, preferably, the middle buffering positioning mechanism includes an integrally formed L-shaped stand, the bottom of the horizontal section of the L-shaped stand is pressed and positioned by the lateral screwing pressing piece above the L-shaped stand, a plurality of lateral pressing springs are fixedly installed on the outer side wall of the vertical section of the L-shaped stand at intervals along the height direction of the vertical section, a second arc pressing seat is fixedly installed at the end of each lateral pressing spring, and each second arc pressing seat is used for pressing the outer side wall of the vertical pressure tank of the safety gas storage unit at the corresponding position.

In any of the above schemes, preferably, the lateral return locking member and the middle return locking member are of a safety locking structure with the same structure;

the safety locking structure comprises a rigid elbow fixedly arranged, a plurality of steel balls connected in series through ropes are arranged in a cavity of the rigid elbow, a locking shaft which is in plug-in fit with a locking blind hole at a corresponding position is inserted into the end part of the horizontal side of the rigid elbow, a pressed short column is inserted into the end part of the vertical section of the rigid elbow, a driven pressing disc is fixedly arranged at the top of the pressed short column, a return spring is sleeved on the outer side wall of the pressed short column between the driven pressing disc and the rigid elbow, two ends of the return spring are fixedly arranged, and two ends of the rope connected with each steel column are fixedly arranged on the pressed short column and the locking shaft at the corresponding position;

When the passive pressing disc is pressed downwards by upper pressure, the outer end of the locking shaft is pushed out to the inside of the locking blind hole, and when the pressure disappears, the locking shaft is pulled back into the cavity of the rigid elbow under the return action of the return spring and the rope.

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

1. the pressure container assembly designed in the invention can be conveniently and stably placed on a transport vehicle, meanwhile, the safety locking of each safety gas storage unit can be effectively ensured in the transportation process of the following vehicle, the bottom positioning locking and the middle-upper side positioning and buffering can be realized in the locking process, and the stability under the condition of bumpy transport road conditions is ensured.

2. In addition, the novel design is carried out on each safety gas storage unit, and each safety gas storage unit is optimized in the safety gas storage unit on the basis of ensuring stable installation, so that the inside of each safety gas storage unit storing explosive gas has the function of three-stage capacity expansion and buffering, the problem of pressure increase caused by the rise of the temperature of the internal gas due to road bump can be ensured, the aim of safely controlling the internal gas pressure can be achieved through capacity expansion and pressure reduction, the capacity expansion and evacuation of the internal gas can be ensured, and the hidden danger of explosion due to high pressure can be reduced.

3. And secondly, the adjacent safety gas storage units of the pressure container assembly realize positioning and pressing, and simultaneously avoid direct rigid contact, and through the designed middle buffer positioning mechanisms and lateral buffer mechanisms, the adjacent safety gas storage units can realize elastic pressing and buffering of the outside after being impacted, so that the influence degree of external impact on internal gas is reduced.

4. After the safety gas storage units are installed by gravity, the corresponding lateral return locking pieces and the middle return locking pieces can be pressed and triggered under the action of the gravity, the safety gas storage units at the corresponding positions are locked at the bottoms by the cooperation of the locking shafts and the locking blind holes, and the firmness of bottom positioning is ensured; meanwhile, the middle buffer positioning mechanisms and the lateral buffer mechanisms on two sides are relied on to support the side, so that the comprehensiveness of support is ensured.

5. In order to reduce the risk caused by gas leakage after collision, the invention also provides the safety explosion-proof device, and when each safety gas storage unit reaches the preset limit of collision, the safety explosion-proof device is triggered to spray the carbon dioxide gas for safety prevention, so that the aim of spraying the carbon dioxide gas onto the safety gas storage units is fulfilled, and the aim of reducing explosion hidden danger is fulfilled.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or features are generally identified by like reference numerals throughout the drawings. In the drawings, the elements or components are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a partially enlarged schematic internal sectional structure of the H portion in fig. 1.

Fig. 3 is a partially enlarged internal sectional structure schematic view of the K portion in fig. 1.

FIG. 4 is a schematic view showing a partially installed state of the safety gas storage unit at the left side portion of the present invention.

Fig. 5 is a schematic view showing the installation state structure of the safety gas storage unit in the middle of the present invention.

FIG. 6 is a schematic view showing the internal structure of the storage unit of the present invention before each safety gas storage unit is mounted.

Fig. 7 is a schematic view of the partial internal cross-sectional structure of fig. 1.

Fig. 8 is a schematic view of the internal sectional structure of the safety gas storage unit of the present invention.

Fig. 9 is a schematic structural view of a middle buffer positioning mechanism of the present invention.

Fig. 10 is a schematic structural view of a lateral buffering mechanism of the present invention.

In the figure, A, a safe gas storage unit; B. a middle buffer positioning mechanism; C. a lateral buffer mechanism; D. reset type passive pushing capacity expansion piece; E. a safety explosion-proof device; F. a storage unit; G. a screwing piece; I. a safety locking structure; 1. a vertical pressure tank; 2. sealing the upper cover; 3. a main gas storage chamber; 4. sealing the expansion disc; 401. a main chamber seal ring; 5. locking the blind hole; 6. a first expansion chamber; 7. a first pre-pressing support spring; 8. a first safety valve; 9. a second safety valve; 10. the second expansion cavity; 11. a third expansion cavity; 12. pre-filling a fire-fighting air bag; 13. an airbag safety valve; 14. a vertical air outlet pipe; 15. sealing the pushing disc; 16. a horizontal pushing column; 17. pushing through the aperture; 18. pushing the return spring; 19. a leak-proof seal ring; 20. storing and installing a base station; 21. installing a positioning cavity; 22. networking alarm; 23. a positioning frame; 2301. a main horizontal mounting portion; 2302. a horizontal support portion; 24. a lateral fixing frame; 25. adjusting the pressing stud; 26. pressing the positioning disc; 27. pressing a screwing knob; 28. a hollow positioning vertical seat; 29. a horizontal pressure-bearing seat; 30. a carbon dioxide gas guide pore; 31. laterally pressing the spring; 32. the first arc-shaped pressing seat; 33. a porous spray cartridge; 34. a rigid elbow; 35. a rope; 36. steel balls; 37. a locking shaft; 38. a pressed short column; 39. a passive platen; 40. a return spring; 41. laterally abutting against the spring; 42. a second arc-shaped pressing seat; 43. an L-shaped standing seat. And (5) standing a seat.

Detailed Description

Embodiments of the technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, and are not intended to limit the scope of the present invention. The specific structure of the invention is shown in fig. 1-10.

Examples: the pressure container assembly with the safety locking structure comprises a storage unit F, the storage unit F is fixedly placed in a transportation carriage in a transportation state, a plurality of safety gas storage units A are locked and placed in the storage unit F, the bottoms of the safety gas storage units A are safely locked in the storage unit F, a middle buffer positioning mechanism B is arranged between the adjacent safety gas storage units A, two sides of the middle buffer positioning mechanism B are respectively abutted to corresponding side walls of the safety gas storage units A at corresponding positions, a middle check locking part is respectively installed in a cavity of the storage unit F between the adjacent safety gas storage units A, a lateral buffer mechanism C is respectively installed at the left side and the right side of the storage unit F, and a side check locking part is respectively installed at one side of the storage unit F at two sides.

The pressure vessel assembly with the safety locking structure can be used for installing and placing the storage unit F in advance and laterally fixing the storage unit F when being installed on a transport vehicle; and then, each safe gas storage unit A is placed in the corresponding installation cavity by using hoisting equipment, each lateral buffer mechanism C and each middle buffer positioning mechanism B are sequentially installed after the safe gas storage unit A is installed, so that the safe positioning of each safe gas storage unit A is realized, and when each lateral buffer mechanism C and each middle buffer positioning mechanism B are installed, the side grid locking part at the corresponding position, the middle screwing pressing part on the middle grid locking part and the lateral screwing pressing part can be utilized to press the corresponding safe gas storage unit A, and at the moment, the corresponding safe locking structure is synchronously triggered and pressed to lock the safe gas storage unit A at the corresponding position.

In any of the above schemes, preferably, the middle grid locking component is used for locking one side of the safety gas storage unit A at the corresponding position and the bottom of the middle buffer positioning mechanism B at the current position;

the Bian Buge gear locking component is used for locking the outer side of the safety gas storage unit A at the corresponding position and the bottom of the lateral buffer mechanism C at the current position.

The middle buffer positioning mechanism B and the lateral buffer mechanism C have three functions, one is: the side wall of the safety gas storage unit A at the current position is abutted and positioned; and the second is: the safety gas storage unit A can be laterally abutted and positioned, and meanwhile, certain lateral buffering can be realized; thirdly, it is: the middle buffer positioning mechanism B and the lateral buffer mechanism C can be mounted in place and simultaneously can press and trigger the safety locking structures below the middle buffer positioning mechanism B and the lateral buffer mechanism C, and the locking shafts 37 on the corresponding safety locking structures are inserted into the locking blind holes 5 of the corresponding safety gas storage units A, so that the purpose of locking the bottoms of the safety gas storage units A is achieved.

In any of the above schemes, it is preferable that each of the safety gas storage units a can realize three-stage capacity expansion and decompression after being impacted by shaking in a transportation state.

The three-stage capacity expansion and decompression can realize the aim of coping with the road conditions of impact and jolt in various degrees, and the explosive gas which is heated and pressurized by impact can be dredged after the capacity expansion, so that the purpose of stable decompression and capacity expansion is achieved; the three-stage capacity expansion and decompression can cope with the rising of gas pressure caused by impact under different degrees, and the safety is higher.

In any of the above schemes, it is preferable that the safety gas storage unit a includes a vertical pressure tank 1, a sealing upper cover 2 is sealed and installed at a top inlet of the vertical pressure tank 1, a gas storage main cavity 3 is provided in the vertical pressure tank 1, a sealing expansion disc 4 is horizontally provided at a lower portion of the gas storage main cavity 3, the sealing expansion disc 4 is in sealing fit with an inner side wall of the gas storage main cavity 3 through a main cavity sealing ring 401 sleeved on an outer side wall thereof, and locking blind holes 5 are symmetrically provided at two sides of an outer side wall of the lower portion of the vertical pressure tank 1;

a first capacity expansion cavity 6 is arranged below the sealed capacity expansion disc 4, the first capacity expansion cavity 6 and the gas storage main cavity 3 are arranged in a sealed partition manner, a plurality of first prepressing support springs 7 are arranged in the first capacity expansion cavity 6 at intervals, the top of each first prepressing support spring 7 is abutted to the bottom of the sealed capacity expansion disc 4, the bottom of each first prepressing support spring is fixedly arranged at the bottom of the gas storage main cavity 3, a bottom space is also arranged in the vertical pressure tank 1 below the gas storage main cavity 3, a first safety valve 8 and a second safety valve 9 are fixedly arranged at the top of the middle section of the bottom space at intervals, the gas inlet pipelines of the first safety valve 8 and the second safety valve 9 are all movable and penetrate into the gas storage main cavity 3 in a sealed manner, the top inlet ends of the first safety valve 8 and the second safety valve 9 are positioned in the gas storage main cavity 3, and the lower gas outlet section is positioned in the bottom space; wherein, the middle part of the bottom space is a second expansion cavity 10, and the two sides are both third expansion cavities 11.

The gas storage main cavity 3 on the vertical pressure tank 1 of the safety gas storage unit A is used as a precondition for storing explosive gas, the inside of the gas storage main cavity 3 is filled with gas with safety pressure when the explosive gas is pre-filled, and the sealing upper cover 2 is screwed, sealed and locked after the gas is filled.

After the safety gas storage unit A is installed at the position corresponding to the storage unit F, the safety gas storage unit A is transported along with a vehicle, and when the safety gas storage unit A encounters bumpy road conditions, the temperature of gas in the vertical pressure tank 1 of the safety gas storage unit A rises and the gas pressure increases along with shaking and impacting, so that the sealing capacity expansion disc 4 is pressed downwards firstly, the elasticity of the first prepressing supporting spring 7 at the bottom of the sealing capacity expansion disc 4 is overcome under the action of the gas pressure, and the first prepressing supporting spring 7 is pressed downwards to move, so that the capacity expansion and the pressure reduction for the first time are realized; if the current air pressure is still higher after the first expansion, the air pressure also triggers the corresponding first safety valve 8 and second safety valve 9, the high-pressure explosive gas in the gas storage main cavity 3 enters the corresponding second expansion cavity 10 below, the second expansion cavity 10 is filled with the explosive gas and then expands towards two sides, the expansion of the second expansion cavity 10 is realized, the expansion of the second expansion cavity 10 is simultaneously compressed into the third expansion cavity 11 at two sides is realized, the purpose of three expansion is achieved, the preset 3 expansion is enough to cope with jolt and moderate and slight impact under most conditions, and therefore, after the gas in the gas storage main cavity 3 is heated and boosted due to collision or jolt, the gas in the gas storage main cavity 3 can be guided into the second expansion cavity 10, the safe gas guiding and pressure reducing of the gas storage main cavity 3 are realized, and the safety is relatively high.

In any of the above schemes, it is preferable that the first expansion chamber 6 and the second expansion chamber 10 each contain a proper amount of inert gas in advance, where the inert gas has an explosion-proof damping effect on the flammable and explosive gas stored in the gas storage main chamber 3.

In any of the above solutions, it is preferable that a reset type passive pushing expansion member D is respectively installed in the two third expansion chambers 11 of the vertical pressure tank 1, and each reset type passive pushing expansion member D moves outwards and expands the second expansion chamber 10 after being pushed by the air pressure of the second expansion chamber 10 on the adjacent side thereof.

In any of the above schemes, it is preferable that a safety explosion-proof device E is fixedly installed in the storage unit F under each middle barrier locking member; and after the reset passive pushing expansion pieces D in the middle are pushed outwards, the safety explosion-proof device E at the current position is triggered in a pushing mode.

When the pressure of the high-pressure gas entering the second expansion cavity 10 is still higher, the reset type passive pushing expansion piece D at the corresponding position is pushed to the two sides continuously, and after the reset type passive pushing expansion piece D is pushed, the safety explosion-proof device E at the corresponding position or the networking alarm 22 at the corresponding position is pushed to the outside, so that carbon dioxide is sprayed outwards to achieve the purposes of safety flame retardance, fire extinguishment and explosion prevention while alarming.

In any of the above schemes, it is preferable that the safety explosion-proof device E includes a pre-filled fire-fighting air bag 12 fixedly installed in the internal cavity of the storage unit F below the middle barrier locking member, an air bag safety valve 13 is installed at the top outlet end of the pre-filled fire-fighting air bag 12, a vertical air outlet pipe 14 is installed at the top of the air bag safety valve 13, and the top outlet end of the vertical air outlet pipe 14 is matched with the middle barrier locking member above the corresponding middle barrier locking member; the inside of the pre-filled fire-fighting air bag 12 is pre-filled with carbon dioxide gas with proper pressure; when the corresponding reset type passive pushing expansion piece D is pressed to trigger the current pre-filled fire-fighting air bag 12, the air bag safety valve 13 is opened, and the carbon dioxide gas in a high-pressure state is sprayed outwards to realize fire fighting explosion prevention or spray fire extinguishing.

The safety explosion-proof device E mainly adopts a mode of pre-charging high-pressure carbon dioxide in the pre-charging fire-fighting air bag 12, when the pressure in the tank body is quickly increased and still can not be completely depressurized through three-stage buffering due to the impact of rice cooker gas, the air bag safety valve 13 which is linked with the reset type passive pushing expansion piece D is arranged, the high-pressure gas in the pre-charging fire-fighting air bag 12 is quickly led out through pushing the triggering air bag safety valve 13, and the carbon dioxide gas guide pores 30 on the middle buffering positioning mechanism B at the corresponding position are used for spraying outwards, and the split-flow spraying is realized by virtue of each porous spraying cylinder 33 in the spraying process, so that the pressurizing effect is achieved.

In any of the above solutions, it is preferable that the reset passive pushing expansion member D includes a sealing pushing plate 15 sealingly mounted inside the second expansion chamber 10, the sealing pushing plate 15 is in sealing contact with an inner side wall of the second expansion chamber 10 through a sealing ring on an outer side wall thereof, a horizontal pushing column 16 is fixedly mounted on an outer side of the sealing pushing plate 15, a pushing through hole 17 is provided on a side wall of the vertical pressure tank 1 outside the horizontal pushing column 16, the pushing through hole 17 communicates the third expansion chamber 11 at a corresponding position with a cavity of the external storage unit F, a pushing return spring 18 is sleeved on an outer side wall of the horizontal pushing column 16, and two ends of the pushing return spring 18 are respectively abutted on a corresponding side wall of the third expansion chamber 11 and a corresponding side wall of the sealing pushing plate 15.

When the reset type passive pushing expansion piece D is pushed by high-pressure gas in the second expansion cavity 10, the preset elastic force of the pushing return spring 18 at the corresponding side is overcome by pushing the sealing pushing disc 15, so that the horizontal pushing column 16 is continuously driven to move outwards and extend to the outer side of the pushing through hole 17 to realize the pressing of the pre-filled fire-fighting air bag 12 at the corresponding position or the pressing of the networking alarm 22, and the explosion-proof treatment of the carbon dioxide is realized by alarming and safely spraying; in addition, when the horizontal pushing column 16 is inserted into the pushing through hole 17, the purpose of blocking the outer side of the third expansion chamber 11 can be achieved, so that the function of blocking pressure is achieved.

In any of the above embodiments, it is preferable that a plurality of leakage-proof sealing rings 19 are fixedly installed on the outer sidewall of each horizontal pushing post 16 at regular intervals along the length direction thereof, and each leakage-proof sealing ring 19 is used for sealing the pushing through hole 17 at the current position. Each leak-proof seal 19 can better improve the sealing effect.

In any of the above solutions, it is preferable that the storage unit F includes a storage installation base 20, an installation space is provided at a top of the storage installation base 20, the installation space is divided into a plurality of installation positioning chambers 21 for storing and fixing the safety gas storage unit a at a current position by each middle grid locking member, the safety explosion-proof device E is installed in a space below the middle grid locking member between two adjacent installation positioning chambers 21 in the middle, a spring pressing triggering type networking alarm 22 is installed in a space outside the installation positioning chambers 21 at both sides, and when the air pressure inside the safety gas storage unit a at the current position exceeds a preset alarm value, each networking alarm 22 is respectively pressed and triggered by the reset type passive pressing expansion member D at the corresponding position and realizes alarm and feedback of an alarm signal to a central control center of the transportation vehicle.

The storage unit F is supported in the cabin of the vehicle by means of the storage mounting base 20 as a main fixing member; the middle grid blocking locking parts and the side grid blocking locking parts on the side parts of the middle part can realize positioning and limiting on two sides of each installation positioning cavity 21, so that the follow-up corresponding limiting of the vertical pressure tank 1 is ensured, and the middle buffer positioning mechanism B and the lateral buffer mechanism C are further positioned and limited in a lateral direction and propped up after being installed in a later stage.

The networking alarm 22 adopts a spring pressing triggering type structure, so that the alarm can be triggered rapidly when the reset type passive pushing expansion piece D presses the expansion piece, and the current danger signal of a vehicle driver can be effectively reminded.

In any of the above solutions, it is preferable that the middle grid blocking locking component includes a positioning frame 23 fixedly installed in a space between two adjacent installation positioning cavities 21 of the storage unit F, a main horizontal installation portion 2301 is provided at a middle bottom of the positioning frame 23, two sides of the main horizontal installation portion 2301 are respectively bent integrally to form a vertical blocking portion, a horizontal support portion 2302 and a vertical clamping portion, the two vertical clamping portions realize clamping limitation of a middle buffer positioning mechanism B installed therebetween, a middle screwing pressing piece is respectively installed on each horizontal support portion 2302, two middle screwing pressing pieces cooperate to realize pressing positioning of bottoms of the middle buffer positioning mechanism B installed between two adjacent safety air storage units a, a middle return locking piece is respectively installed at left and right sides of the main horizontal installation portion 2301 of the positioning frame 23, and a lateral return locking piece is respectively installed in the space at the position of the two networking alarm 22;

The lateral return locking pieces and the middle return locking pieces are respectively used for being in plug-in fit with a locking blind hole 5 on the outer side wall of the lower part of the vertical pressure tank 1 at the current position in the working state and locking the vertical pressure tank 1.

The middle grid locking part has the function of realizing lateral limit on the lower part of the vertical pressure tank 1 of the current safety gas storage unit A, and simultaneously realizing lateral positioning and abutting on the upper part of the vertical pressure tank 1 by matching with the locking of the middle buffer positioning mechanism B and the middle screwing abutting piece.

In any of the above solutions, it is preferable that the Bian Buge blocking locking component includes a lateral fixing frame 24 integrally formed and fixed at a top of one side of the storage and installation base 20 at a corresponding position, a lateral screwing pressing member is rotatably mounted at an upper horizontal section of the lateral fixing frame 24, a lateral return locking member is fixedly mounted in a space right below the lateral screwing pressing member and above the corresponding networking alarm 22, and the lateral return locking member is used for locking a locking blind hole 5 on the vertical pressure tank 1 of the current safety gas storage unit a in cooperation with the middle return locking member at the corresponding side; the lateral screwing abutting piece is used for abutting the bottom of the lateral buffer mechanism C at the current position.

In any of the above schemes, preferably, the middle screwing pressing piece and the lateral screwing pressing piece are screwing pieces G with the same structure; the screwing piece G comprises an adjusting pressing stud 25 screwed in a threaded through hole at a corresponding position, a pressing positioning disc 26 is fixedly arranged at the bottom of the adjusting pressing stud 25, and a pressing screwing knob 27 is fixedly arranged at the top of the adjusting pressing stud 25.

In any of the above schemes, it is preferable that when the middle buffer positioning mechanism B is installed in place, both sides of the bottom of the middle buffer positioning mechanism B are in a state of being pressed by two middle screwing pressing pieces, and the bottom center of the middle buffer positioning mechanism B is matched with the outlet end of the vertical air outlet pipe 14 of the safety explosion-proof device E; when the middle buffer positioning mechanism B is installed in place, the left side and the right side of the middle buffer positioning mechanism B are respectively abutted against the outer side wall of the vertical pressure tank 1 at the corresponding position.

In any of the above embodiments, it is preferable that the bottom of the lateral cushion mechanism C is in a state of being pressed by the lateral screwing pressing piece on the Bian Buge gear locking member when the lateral cushion mechanism C is in place.

The main functions of the middle screwing pressing piece and the lateral screwing pressing piece are two: one is: the middle grid locking part at the current position and the bottom of the lateral buffer mechanism C are pressed and positioned, so that the stability and the safety of the lateral positioning of the vertical pressure tank 1 are ensured; secondly, when the middle grid locking part at the current position and the bottom of the lateral buffer mechanism C are pressed and positioned, the safety locking structure at the corresponding position is triggered to work by virtue of downward pressure, and the locking shaft 37 on the safety locking structure is inserted into the corresponding locking blind hole 5, so that the aim of rapidly locking the inside of the locking blind hole 5 is fulfilled.

The screwing piece G can realize the purpose of rapidly lifting the pressing positioning disk 26 by screwing the pressing screwing knob 27 when in adjustment, and can realize self-locking after lifting in place.

In any of the above schemes, preferably, the middle buffering positioning mechanism B includes a hollow positioning stand 28 that is vertically arranged, the bottom of the hollow positioning stand 28 is integrally and fixedly connected with a horizontal pressure-bearing seat 29, the middle parts of the horizontal pressure-bearing seat 29 and the hollow positioning stand 28 are provided with carbon dioxide air guide holes 30 that are vertically arranged therethrough, the bottom of the carbon dioxide air guide holes 30 is used for being hermetically sleeved on the outer side wall of the vertical air outlet pipe 14 right below the carbon dioxide air guide holes in an installation state, and two sides of the bottom of the horizontal pressure-bearing seat 29 realize pressing triggering on a middle return locking piece corresponding to the lower part of the horizontal pressure-bearing seat 29 under the action of a corresponding middle screwing pressing piece;

a plurality of lateral pressing springs 31 are fixedly arranged at intervals from top to bottom on the left side and the right side of the hollow positioning vertical seat 28, a first arc pressing seat 32 is fixedly arranged at the outer end part of each lateral pressing spring 31, and each first arc pressing seat 32 is used for pressing the outer side wall of the vertical pressure tank 1 of the safety gas storage unit A at the corresponding position.

The main purpose of the carbon dioxide gas guide pore 30 arranged on the middle buffer positioning mechanism B is to connect the vertical gas outlet pipe 14 of the pre-filled fire-fighting air bag 12 on the safety explosion-proof device E at the bottom of the middle buffer positioning mechanism B, so that the aim of spraying high-pressure pre-filled carbon dioxide gas after the air bag safety valve 13 is opened is achieved.

In any of the above embodiments, it is preferable that a porous injection cylinder 33 with a top closed is fixedly connected to the top of each carbon dioxide gas guiding hole 30, and the porous injection cylinder 33 is used for receiving the high-pressure gas from the carbon dioxide gas guiding holes 30 and injecting the high-pressure gas to the periphery to realize safe fire extinguishment or explosion prevention.

The porous injection cylinder 33 can improve the effect when injecting high-pressure carbon dioxide outwards, and the aim of pressurizing and diverging injection is fulfilled.

In any of the above solutions, preferably, the middle buffering positioning mechanism B includes an integrally formed L-shaped stand 43, the bottom of the horizontal section of the L-shaped stand 43 is pressed and positioned by the lateral screwing pressing member above the L-shaped stand 43, a plurality of lateral pressing springs 41 are fixedly installed on the outer sidewall of the vertical section of the L-shaped stand 43 along the height direction thereof at intervals, a second arc pressing seat 42 is fixedly installed at each end of each lateral pressing spring 41, and each second arc pressing seat 42 is respectively used for pressing the outer sidewall of the vertical pressure tank 1 of the safety gas storage unit a at the corresponding position.

The middle buffering positioning mechanism B and the lateral screwing pressing piece are described above, and mainly play roles in pressing the outer side wall of the vertical pressure tank 1 at the current position, and meanwhile, the

lateral pressing springs

41 and 31 are utilized to play a role in buffering, so that the safe buffering effect when the vertical pressure tank is impacted and rocked is ensured.

the safety locking structure I comprises a rigid bent pipe 34 fixedly arranged, wherein a plurality of steel balls 36 which are mutually connected in series through ropes 35 are arranged in a cavity of the rigid bent pipe 34, a locking shaft 37 which is in plug-in fit with a locking blind hole 5 at a corresponding position is inserted into the horizontal side end part of the rigid bent pipe 34, a pressed short column 38 is inserted into the end part of a vertical section of the rigid bent pipe 34, a driven pressing disc 39 is fixedly arranged at the top of the pressed short column 38, a return spring 40 is sleeved on the outer side wall of the pressed short column 38 between the driven pressing disc 39 and the rigid bent pipe 34, two ends of the return spring 40 are fixedly arranged, and two ends of the ropes 35 for connecting steel columns are fixedly arranged on the pressed short column 38 and the locking shaft 37 at the corresponding position;

When the passive pressure disk 39 is pressed downwards by the upper pressure, the outer end of the locking shaft 37 is pushed out into the locking blind hole 5, and when the pressure is lost, the locking shaft 37 is pulled back into the cavity of the rigid elbow 34 under the return action of the return spring 40 and the rope 35.

The safety locking structure mainly adopts a mode of pressing the upper part by pressure when the pressure exists on the upper part, the pressure is acted on the corresponding driven pressing disc 39, the driven pressing disc 39 transmits the pressure to the pressed short column 38, the pressed short column 38 presses the uppermost steel balls 36, and as the steel balls 36 are in a mutually pressed state, the steel balls 36 are continuously pushed in sequence to push the locking shaft 37 at the tail end outwards, so that the locking blind hole 5 at the position is inserted and locked, and the locking of the lower part of the vertical pressure tank 1 is ensured; when the pressure on the upper part disappears, as the steel balls 36, the pressed short columns 38 and the locking shafts 37 are all tied by the ropes 35, the locking shafts 37 are pulled to return together when the return springs 40 return, and the corresponding locking blind holes 5 are separated, so that the aim of unlocking the vertical pressure tank 1 is fulfilled.

The specific working principle is as follows:

the storage unit F may be previously installed and placed and laterally fixed when being installed on the transport vehicle; and then, each safe gas storage unit A is placed in the corresponding installation cavity by using hoisting equipment, each lateral buffer mechanism C and each middle buffer positioning mechanism B are sequentially installed after the safe gas storage unit A is installed, so that the safe positioning of each safe gas storage unit A is realized, and when each lateral buffer mechanism C and each middle buffer positioning mechanism B are installed, the side grid locking part at the corresponding position, the middle screwing pressing part on the middle grid locking part and the lateral screwing pressing part can be utilized to press the corresponding safe gas storage unit A, and at the moment, the corresponding safe locking structure is synchronously triggered and pressed to lock the safe gas storage unit A at the corresponding position. After the safety air storage unit a is installed at the position corresponding to the storage unit F, the following vehicle is transported.

When jolting road conditions are met, the temperature of gas in the vertical pressure tank 1 of the safety gas storage unit A is increased and the gas pressure is increased along with jolt and impact, so that the sealing capacity expansion disc 4 is pressed downwards firstly, the elasticity of the first prepressing supporting spring 7 at the bottom of the sealing capacity expansion disc 4 is overcome under the action of the gas pressure, and the first prepressing supporting spring 7 is pressed downwards to move, so that the capacity expansion and the pressure reduction for the first time are realized; if the current air pressure is still higher after the first expansion, the air pressure also triggers the corresponding first safety valve 8 and second safety valve 9, the high-pressure explosive gas in the air storage main cavity 3 can enter the second expansion cavity 10 below the corresponding air storage main cavity, the second expansion cavity 10 is filled with the explosive gas and then expands towards two sides, and the expansion of the second expansion cavity 10 and the compression of the third expansion cavities 11 at two sides can be realized at the moment, so that the purpose of three expansion is achieved.

The preset 3 expansion steps are enough to cope with bump, moderate and slight impact in most cases, so that after the gas in the gas storage main cavity 3 is heated and boosted due to the bump or bump, the gas in the gas storage main cavity 3 is guided into the second expansion cavity 10, and the safe gas guiding and pressure reduction of the gas storage main cavity 3 are realized, so that the safety is relatively high. When the pressure of the high-pressure gas entering the second expansion cavity 10 is still higher, the reset type passive pushing expansion piece D at the corresponding position is pushed to the two sides continuously, and after the reset type passive pushing expansion piece D is pushed, the safety explosion-proof device E at the corresponding position or the networking alarm 22 at the corresponding position is pushed to the outside, so that carbon dioxide is sprayed outwards to achieve the purposes of safety flame retardance, fire extinguishment and explosion prevention while alarming.

The pressure container assembly designed in the invention can be conveniently and stably placed on a transport vehicle, meanwhile, the safety locking of each safety gas storage unit A can be effectively ensured in the transportation process of a following vehicle, the bottom positioning locking and the lateral positioning and buffering of the middle upper part can be realized in the locking process, and the stability under the condition of bumpy transport road conditions is ensured; according to the invention, a novel design is carried out for each safety gas storage unit A, and each safety gas storage unit A is optimized in the safety gas storage unit A on the basis of ensuring stable installation, so that the inside of each safety gas storage unit A storing explosive gas has a three-stage capacity expansion buffering function, thereby ensuring that the safety can cope with the problem of pressure rise caused by the rise of the temperature of the internal gas due to road bump, achieving the aim of safely controlling the internal gas pressure through capacity expansion and pressure reduction, ensuring the capacity expansion and evacuation of the internal gas, and reducing the hidden danger of explosion caused by high pressure; according to the pressure container assembly, the adjacent safety gas storage units A realize positioning and pressing, direct rigid contact is avoided, and through the design of the middle buffer positioning mechanism B and the lateral buffer mechanism C, the adjacent safety gas storage units A can realize elastic pressing and buffering of the outside after being impacted, so that the influence degree of external impact on internal gas is reduced; after the safety gas storage units A are installed by gravity, the corresponding lateral return locking piece and the middle return locking piece can be pressed and triggered under the action of gravity, the safety gas storage units A at the corresponding positions are locked at the bottom by the cooperation of the locking shafts 37 and the locking blind holes 5, and the positioning firmness of the bottom is ensured; meanwhile, the middle buffer positioning mechanisms B and the lateral buffer mechanisms C on two sides are used for carrying out side support, so that the comprehensiveness of the support is ensured; in order to reduce the risk caused by gas leakage after collision, the safety explosion-proof device E is further arranged, and after each safety gas storage unit A reaches the preset limit of collision, the safety explosion-proof device E is triggered to spray carbon dioxide gas for safety prevention, so that the aim of spraying the carbon dioxide gas onto the safety gas storage units A is fulfilled, and the aim of reducing explosion hidden danger is fulfilled.

The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions; any alternative modifications or variations to the embodiments of the present invention will fall within the scope of the present invention for those skilled in the art.

The present invention is not described in detail in the present application, and is well known to those skilled in the art.

Claims

1. Pressure vessel assembly with safety locking structure, its characterized in that: the safe storage device comprises a storage unit, wherein the storage unit is fixedly placed in a transportation carriage under a transportation state, a plurality of safe gas storage units are locked and placed in the storage unit, the bottoms of the safe gas storage units are safely locked in the storage unit, a middle buffer positioning mechanism is arranged between the adjacent safe gas storage units, two sides of the middle buffer positioning mechanism are respectively abutted to corresponding side walls of the safe gas storage units at corresponding positions, a middle check locking part is respectively installed in a cavity of the storage unit between the adjacent safe gas storage units, a lateral buffer mechanism is respectively installed at the left side and the right side of the storage unit, and a side check locking part is respectively installed at one side of the storage unit at one side of each safe gas storage unit at the two sides.

2. The pressure vessel assembly with safety lockout structure of claim 1, wherein: the middle grid locking component is used for locking one side of the safety gas storage unit at the corresponding position and the bottom of the middle buffer positioning mechanism at the current position;

3. The pressure vessel assembly with safety lockout structure of claim 2, wherein: the safety gas storage unit comprises a vertical pressure tank, a sealing upper cover is arranged at the top inlet of the vertical pressure tank in a sealing way, a gas storage main cavity is arranged in the vertical pressure tank, a sealing expansion disc is horizontally arranged at the lower part of the gas storage main cavity, the sealing expansion disc is in sealing fit with the inner side wall of the gas storage main cavity through a main cavity sealing ring sleeved on the outer side wall of the sealing expansion disc, and locking blind holes are symmetrically arranged at the two sides of the outer side wall of the lower part of the vertical pressure tank;

a first capacity expansion cavity is arranged below the sealed capacity expansion disc, a plurality of first prepressing support springs are arranged in the first capacity expansion cavity at intervals, the tops of the first prepressing support springs are propped against the bottom of the sealed capacity expansion disc, the bottom of the sealed capacity expansion disc is fixedly arranged at the bottom of the gas storage main cavity, a bottom space is further arranged in the vertical pressure tank below the gas storage main cavity, a first safety valve and a second safety valve are fixedly arranged in the middle section top of the bottom space at intervals, air inlet pipelines of the first safety valve and the second safety valve are movable and penetrate into the gas storage main cavity in a sealing mode, the top inlet ends of the first safety valve and the second safety valve are positioned in the gas storage main cavity, and the lower air outlet section is positioned in the bottom space; the middle part of the bottom space is a second expansion cavity, and both sides of the bottom space are third expansion cavities.

4. A pressure vessel assembly with a safety lock arrangement as set forth in claim 3, wherein: and two third expansion cavities of the vertical pressure tank are respectively provided with a reset type passive pushing expansion part, and each reset type passive pushing expansion part can outwards move and realize the expansion of the second expansion cavity after being pushed by the air pressure of the second expansion cavity at the adjacent side of the reset type passive pushing expansion part.

5. The pressure vessel assembly with safety lockout structure of claim 4, wherein: a safety explosion-proof device is fixedly arranged in the storage unit below each middle grid locking component; and after the reset type passive pushing expansion pieces in the middle are pushed outwards, the safety explosion-proof device at the current position is triggered in a pushing mode.

6. The pressure vessel assembly with safety lockout feature of claim 5, wherein: the reset type passive pushing expansion piece comprises a sealing pushing plate which is arranged in the second expansion cavity in a sealing mode, the sealing pushing plate is in sealing butt joint with the inner side wall of the second expansion cavity through a sealing ring on the outer side wall of the sealing pushing plate, a horizontal pushing column is fixedly arranged on the outer side of the sealing pushing plate, a pushing through hole is formed in the side wall of the vertical pressure tank on the outer side of the horizontal pushing column, a third expansion cavity at the corresponding position is communicated with a cavity of an external storage unit through the pushing through hole, a pushing return spring is sleeved on the outer side wall of the horizontal pushing column, and two ends of the pushing return spring are respectively in butt joint with the corresponding side wall of the third expansion cavity and the corresponding side wall of the sealing pushing plate.

7. The pressure vessel assembly with safety lockout structure of claim 6, wherein: the storage unit comprises a storage installation base, an installation space is formed in the top of the storage installation base, the installation space is divided into a plurality of installation positioning cavities for storing and fixing the safety gas storage units at the current position by the middle grid blocking locking parts, the safety explosion-proof devices are installed in the space below the middle grid blocking locking parts between the two adjacent installation positioning cavities in the middle, a spring pressing triggering type networking alarm is installed in the space outside the installation positioning cavities on two sides respectively, and when the air pressure inside the safety gas storage units at the current position exceeds a preset alarm value, each networking alarm is pressed and triggered by the reset type passive pushing expansion part at the corresponding position and an alarm signal is fed back to the central control center of the transport vehicle.

8. The pressure vessel assembly with safety lockout structure of claim 7, wherein: the middle grid blocking locking component comprises a positioning frame fixedly installed in a space between two adjacent installation positioning cavities of the storage unit, the bottom of the middle of the positioning frame is a main horizontal installation part, two sides of the main horizontal installation part are respectively and integrally bent to form a vertical blocking part, a horizontal supporting part and a vertical clamping part, the two vertical clamping parts realize the clamping limit of a middle buffer positioning mechanism installed between the two vertical blocking parts, a middle screwing pressing piece is respectively installed on each horizontal supporting part, the two middle screwing pressing pieces are matched to realize the pressing and positioning of the bottoms of the middle buffer positioning mechanisms installed between two adjacent safety gas storage units, a middle return locking piece is respectively installed on the left side and the right side of the main horizontal installation part of the positioning frame, and a side return locking piece is respectively installed in the space of the two networking alarm positions;

9. The pressure vessel assembly with safety lockout structure of claim 8, wherein: the middle buffering and positioning mechanism comprises a hollow positioning vertical seat which is vertically arranged, a horizontal pressure bearing seat is integrally and fixedly connected with the bottom of the hollow positioning vertical seat, a carbon dioxide air guide pore which is arranged up and down and penetrates through the horizontal pressure bearing seat and the middle of the hollow positioning vertical seat is arranged in the middle of the horizontal pressure bearing seat, the bottom of the carbon dioxide air guide pore is used for being hermetically sleeved on the outer side wall of the vertical air outlet pipe right below the horizontal pressure bearing seat in an installation state, and two sides of the bottom of the horizontal pressure bearing seat realize pressing triggering on a middle return locking piece corresponding to the lower side of the horizontal pressure bearing seat under the action of a corresponding middle screwing pressing piece;

10. The pressure vessel assembly with safety locking arrangement of claim 9, wherein: the lateral return locking piece and the middle return locking piece are of a safe locking structure with the same structure;