Pressure-adjustable explosion-proof inflatable tank with self-power-off and remote alarm function

Abstract

The application discloses a pressure-adjustable anti-explosion inflation tank with self-power-off and remote alarm functions and relates to the technical field of high-pressure cylinder anti-explosion inflation safety equipment. The pressure-adjustable anti-explosion inflation tank with self-power-off and remote alarm functions is provided with a feeding chute and an anti-abrasion sliding pad to guide a gas cylinder to stably fall into position, and is matched with a floating bearing structure of a buffer spring and a buffer pad to effectively absorb the impact and vibration of the gas cylinder when the gas cylinder is placed. The pressure test of a pressure gauge, the electric control power-off execution of a main control unit and the wireless remote alarm are combined to realize three functions, the pressure parameter can be continuously and steplessly adjusted according to different operation conditions, the application range of the equipment is expanded, when the real-time pressure is higher than a preset safety threshold value, the main control unit immediately outputs an instruction to cut off the main circuit power supply, the equipment is forced to stop, a hardware interlocking protection is formed, overpressure operation is prevented, and when the equipment triggers the protection stop, a fault alarm signal is automatically pushed to a management terminal, and a management personnel can also receive danger information in time without being on site.

Description

Technical Field

[0001] This invention relates to the field of explosion-proof filling safety equipment for high-pressure gas cylinders, and particularly to an adjustable pressure explosion-proof filling box with self-power-off and remote alarm functions. Background Technology

[0002] In fields such as fire rescue, chemical safety, and mining operations, carbon fiber gas cylinders serve as the core high-pressure gas supply carrier for positive-pressure air respirators. Their safe filling is a crucial link in ensuring the reliable operation of protective equipment. Explosion-proof filling boxes, as the core safety protection equipment in the gas cylinder filling process, can effectively block the impact risk caused by accidental gas cylinder explosions. The ease of operation and cylinder protection capabilities of their structural design directly affect the efficiency of filling operations and the safe service life of the gas cylinders. With the increasingly widespread application of large-capacity gas cylinders in the industry, the requirements for the humanization of filling operations and gas cylinder protection are also continuously improving.

[0003] Existing explosion-proof gas filling boxes mostly adopt a side-opening door structure. When operators retrieve or place gas cylinders, they need to reach their arms into the box to complete the alignment. For large-volume and heavy carbon fiber gas cylinders, the operation is labor-intensive and the alignment is difficult, resulting in insufficient convenience of the overall filling operation. In addition, the internal view is limited when the door is open, making it difficult for operators to accurately control the placement of gas cylinders, which can easily lead to misplacement of gas cylinders and workstation deviation. Furthermore, when the pipeline pressure exceeds the standard, the equipment cannot actively cut off the power supply, which can easily lead to safety accidents such as explosion and leakage. Fault information can only be discovered by on-site personnel during inspections, and there is no way to remotely synchronize early warning. Emergency response is delayed, manual on-site operation is costly, the operating conditions are limited, and the versatility is poor. At present, similar pressure control equipment on the market has not yet integrated a three-in-one interlocking control system that combines adjustable pressure, automatic power-off in case of fault, and remote alarm, which represents a significant technological gap. Summary of the Invention

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a pressure-adjustable explosion-proof gas box with self-power-off and remote alarm functions, which can solve the above problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pressure-adjustable explosion-proof gas-filled box with self-power-off and remote alarm functions, including a support base, a box body fixedly connected to the support base, a rotating shaft fixedly connected to one side of the box body, an explosion-proof door rotatably connected to the rotating shaft, a tank support fixedly connected to the bottom of the explosion-proof door, and anti-detachment guardrails fixedly connected to both sides of the explosion-proof door. A door closing sensor is fixedly connected to one side of the box body, and electric push rods are fixedly connected to both sides of the box body. A locking head is fixedly connected to the output end of the electric push rod. Locking slots that are compatible with the locking heads are opened on both sides of the anti-detachment guardrail. An inflation tube is fixedly connected inside the housing, and a pressure sensor is fixedly connected to the inflation tube. The inflation tube is a stretchable hose. A protective operating chamber is fixedly connected to the top of the housing, and a main control unit is fixedly connected inside the protective operating chamber. A pressure reducing valve and a pressure gauge are fixedly connected to the front of the protective operating chamber. The pressure sensor, pressure reducing valve, and pressure gauge are electrically connected to the main control unit through a PCL circuit board.

[0006] Preferably, the explosion-proof door flips up and down along the pivot to open and forms a discharge port on the top of the box.

[0007] Preferably, a partition is fixedly connected to the explosion-proof door, and the partition is located between two anti-detachment guardrails.

[0008] Preferably, buffer grooves are provided on both sides of the can holder, and buffer springs are fixedly connected in both buffer grooves, with buffer pads fixedly connected to the buffer springs.

[0009] Preferably, the explosion-proof door has two feeding grooves on the side facing the inside of the box, and anti-wear pads are fixedly connected to the feeding grooves, so that the gas cylinder can slide along the anti-wear pads into the buffer pad.

[0010] Preferably, a door handle is fixedly connected to the outside of the explosion-proof door.

[0011] Preferably, a pressure relief conduit is fixedly connected to the bottom of the housing.

[0012] Preferably, an audible and visual alarm is fixedly connected to the top of the protective operating cabin, and the audible and visual alarm is electrically connected to the main control unit.

[0013] Preferably, the main control unit includes a remote communication module and is connected to the management terminal of the administrator. The remote communication module is activated when the interlock protection is turned on.

[0014] Preferably, the main control unit includes an electrically controlled power-off execution module, which is activated when the pressure gauge reading exceeds a preset value.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This pressure-adjustable explosion-proof gas filling box with self-power-off and remote alarm functions adopts a structure design with an upward-opening explosion-proof door and an integrated tank support. Compared with the traditional side-opening door that requires leaning out to pick up and put down gas cylinders, the top forms an open discharge port after the door is opened. Operators can directly observe the internal workstations and complete the gas cylinder loading and unloading, making the operation more convenient and labor-saving. At the same time, it is equipped with a feeding chute and anti-wear pad to guide the gas cylinder to land smoothly. With the floating support structure of buffer spring and buffer pad, it can effectively absorb the impact and vibration when the gas cylinder is placed, and avoid the outer wall of the gas cylinder from scratching and bumping against the rigid metal structure. With the anti-detachment guardrail and partition, a dual-workstation stable protection is formed, which not only improves the convenience of gas cylinder filling operation, but also effectively reduces the wear and tear on the outer structure of carbon fiber gas cylinders during the loading and unloading process.

[0016] 2. This pressure-adjustable explosion-proof gas filling box with self-power-off and remote alarm functions uses a mechanical self-locking structure with a door-closing sensor linked to an electric push rod. Combined with the main control unit's door-opening power-off and full-filling self-power-off control logic, and through pressure testing by a pressure sensor, electrical power-off execution by the main control unit, and wireless remote alarm, three functions are linked. The pressure parameter can be continuously and steplessly adjusted according to different operating conditions, expanding the equipment's applicability. When the real-time pressure exceeds the preset safety threshold, the main control unit immediately outputs a command to cut off the main circuit power supply, forcing the equipment to stop, forming a hardware interlock protection to prevent overpressure operation. At the same time as the equipment triggers the protection shutdown, it automatically pushes a fault alarm signal to the management terminal, allowing management personnel to receive emergency information in a timely manner even when they are not on-site. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is an isometric schematic diagram of an adjustable pressure explosion-proof gas-filled box with self-power-off and remote alarm functions according to the present invention. Figure 2 This is a front sectional view of a pressure-adjustable explosion-proof gas-filled box with self-power-off and remote alarm functions according to the present invention. Figure 3 This is a right-side sectional view of a pressure-adjustable explosion-proof gas-filled box with self-power-off and remote alarm functions according to the present invention. Figure 4 This is a top oblique sectional view of an adjustable pressure explosion-proof gas-filled box with self-power-off and remote alarm functions according to the present invention.

[0018] Figure 5 This is a top view schematic diagram of an adjustable pressure explosion-proof gas-filled box with self-power-off and remote alarm functions according to the present invention. Figure 6 This is a front view schematic diagram of an adjustable pressure explosion-proof gas-filled box with self-power-off and remote alarm functions according to the present invention.

[0019] Reference numerals in the attached diagram: 1. Support base; 2. Box body; 3. Rotating shaft; 4. Explosion-proof door; 5. Tank support; 6. Anti-detachment guardrail; 7. Partition; 8. Buffer groove; 9. Buffer spring; 10. Buffer pad; 11. Feed chute; 12. Anti-wear pad; 13. Door closing sensor; 14. Electric push rod; 15. Locking head; 16. Locking slot; 17. Door handle; 18. Pressure relief conduit; 19. Inflation pipe; 20. Protective operating chamber; 21. Main control unit; 22. Audible and visual alarm; 23. Pressure reducing valve; 24. Pressure gauge; 25. Pressure sensor. Detailed Implementation

[0020] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0022] In the description of this invention, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0024] Please see Figure 1-6 The present invention provides a technical solution: a pressure-adjustable explosion-proof gas box with self-power-off and remote alarm functions, including a support base 1, a box body 2 fixedly connected to the support base 1, a rotating shaft 3 fixedly connected to one side of the box body 2, an explosion-proof door 4 rotatably connected to the rotating shaft 3, a tank support 5 fixedly connected to the bottom of the explosion-proof door 4, anti-detachment guardrails 6 fixedly connected to both sides of the explosion-proof door 4, and a partition 7 fixedly connected to the explosion-proof door 4, the partition 7 being located between the two anti-detachment guardrails 6; The tank support 5 has buffer grooves 8 on both sides, and buffer springs 9 are fixedly connected in both buffer grooves 8. Buffer pads 10 are fixedly connected to the buffer springs 9. The buffer springs 9 connected to the bottom of the buffer pads 10 are embedded in the buffer grooves 8 of the tank support 5. They can absorb the vertical impact force when the gas cylinder is placed, and achieve buffering and shock absorption protection. The explosion-proof door 4 has two feeding slides 11 on the side facing the inside of the box. Anti-wear pads 12 are fixedly connected to the feeding slides 11. The cylinder body slides smoothly down the feeding slides 11 on the inside of the explosion-proof door 4. The anti-wear pads 12 on the surface of the feeding slides 11 are in flexible contact with the cylinder body to avoid the metal structure scratching the outer wall of the gas cylinder. A door closing sensor 13 is fixedly connected to one side inside the housing 2, and electric push rods 14 are fixedly connected to both sides inside the housing 2. A locking head 15 is fixedly connected to the output end of the electric push rod 14. Locking slots 16 are opened on both sides of the anti-detachment guardrail 6. After the door closing sensor 13 detects that the door is in place, the electric push rods 14 on both sides inside the housing 2 extend synchronously, driving the locking head 15 at the output end to accurately insert into the locking slots 16 on both sides of the anti-detachment guardrail 6, thus completing the mechanical self-locking of the explosion-proof door 4. A door handle 17 is fixedly connected to the outside of the explosion-proof door 4. A pressure relief conduit 18 is fixedly connected to the bottom of the box 2. An inflation pipe 19 is fixedly connected inside the box 2. The inflation pipe 19 is a stretchable hose. A pressure sensor 25 is fixedly connected to the inflation pipe 19. A protective operating chamber 20 is fixedly connected to the top of the box 2. A main control unit 21 is fixedly connected inside the protective operating chamber 20. The main control unit 21 includes a remote communication module and an electrical control power-off execution module. An audible and visual alarm 22 is fixedly connected to the top of the protective operating chamber 20. A pressure reducing valve 23 and a pressure gauge 24 are fixedly connected to the front of the protective operating chamber 20. The pressure reducing valve 23 and the pressure gauge 24 are electrically connected to the main control unit 21 through a PCL circuit board. The pressure reducing valve 23 can flexibly adjust the output pressure to adapt to the filling needs of carbon fiber gas cylinders with different volumes and rated pressures, realizing universal filling with adjustable pressure.

[0025] Working principle: By gripping the door handle 17 and applying upward force, the explosion-proof door 4 flips open along the pivot 3 on the upper part of the housing 2, forming an open discharge port at the top of the housing 2. The can holder 5, fixed at the bottom of the explosion-proof door 4, swings upward synchronously with the door to below the discharge port. The operator can clearly observe the position of the can holder 5 through the discharge port. The inflation tube 19 is pulled out from inside the housing 2 and connected to the gas cylinder. The carbon fiber gas cylinder to be filled is placed into the top discharge port. The cylinder slides smoothly down the infeed chute 11 on the inner side of the explosion-proof door 4. The anti-wear pad 12 makes flexible contact with the cylinder body to prevent the metal structure from scratching the outer wall of the gas cylinder. The gas cylinder eventually slides down to the buffer pad 10 above the support 5. The buffer spring 9 connected to the bottom of the buffer pad 10 is embedded in the buffer groove 8 of the support 5. It can absorb the vertical impact force when the gas cylinder is placed to achieve buffering and shock absorption protection. The anti-detachment guardrails 6 on both sides of the explosion-proof door 4 and the partition 7 in the middle form a double-station separation protection, which can support two gas cylinders at the same time to prevent the gas cylinders from rolling and misaligning, complete the feeding and positioning, and adapt to the use requirements of filling two cylinders at the same time. Push the explosion-proof door 4 until it is fully closed. The cylinder support 5 then pulls the gas cylinder into the filling station inside the housing 2. After the door is in position, the door closing sensor 13 on the inner wall of the housing 2 sends a door-closing ready signal to the main control unit 21. The main control unit 21 uses a Siemens S7-200 SMART SR20 small programmable controller. The main control unit 21 then controls the electric push rods 14 on both sides inside the housing 2 to extend synchronously, driving the locking head 15 at the output end to accurately insert into the locking slots 16 on both sides of the anti-detachment guardrail 6. The door closing sensor 13 uses a JT-EX-0227 explosion-proof door magnetic switch to complete the mechanical self-locking of the explosion-proof door 4, preventing the door from being accidentally lifted upwards during the filling process. Only after the door is closed and locked in place will the main control unit 21 open the filling permission, thus eliminating the safety hazard of accidental filling when the door is open and constructing an inherently safe interlocking protection logic. The operator sets the target filling pressure through the pressure reducing valve 23 on the front control panel of the protective operating cabin 20. The pressure gauge 24 displays the pressure value of the filling circuit detected by the pressure sensor 25 in real time. The pressure sensor 25 adopts Siemens QBM3120-1B. The pressure gauge 24 provides intuitive feedback on the pressure adjustment result and adopts YN-100 type shock-resistant stainless steel pressure gauge. After completing the parameter setting, the filling passage is opened and the filling process officially begins. The pressure reducing valve 23 can flexibly adjust the output pressure to adapt to the filling needs of carbon fiber cylinders with different volumes and rated pressures, realizing universal filling with adjustable pressure. It adopts VSR-8 type high-pressure piston pressure reducer. Managers can preset pressure thresholds through the management terminal. When the pressure sensor 25 detects that the pressure inside the gas cylinder reaches the preset full-fill pressure threshold, the main control unit 21 immediately executes the shutdown logic. The power-off execution module starts and cuts off the power supply. On the one hand, it directly cuts off the power supply circuit of the air compressor and the main gas filling circuit, realizing automatic power-off when the gas cylinder is full, completely avoiding the risk of overfilling. On the other hand, it simultaneously triggers two-level alarm reminders. The audible and visual alarm 22 on the top of the protective operation cabin 20 is activated, emitting audible and visual prompts to remind on-site personnel that filling is complete. The audible and visual alarm 22 adopts the TBJ-150 industrial integrated audible and visual alarm. The main control unit 21 links with the remote communication module to push fault alarm signals to the management terminal. Managers can receive emergency information in a timely manner even when they are not on-site, realizing remote status notification. If the explosion-proof door 4 is abnormally opened upwards during the filling process, the door closing sensor 13 will instantly send an opening signal to the main control unit 21. The main control unit 21 will immediately cut off the power supply to the air compressor and the filling air circuit, realizing automatic power and gas cut-off in the open state. At the same time, it will trigger the audible and visual alarm 22 and remote alarm push the abnormal door opening information to manage safety risks in the first time. If the gas cylinder accidentally explodes, the high-pressure airflow and impact energy that expands in the box 2 will be conducted downwards and discharged to the outdoor safe area through the pressure relief pipe 18 connected to the bottom of the box 2, so as to avoid the high-pressure airflow from spreading and impacting in the room.

[0026] Structural Description: Support base 1: Used as the bottom support base of the entire explosion-proof air box, and fixedly connected to the box body 2 at the top. It can provide a stable installation foundation for the upper box body 2 and various functional components, ensuring that the equipment is placed stably and avoiding displacement due to vibration during filling. It is suitable for indoor fixed installation scenarios. Box 2: Used as the main protective cavity for explosion-proof filling. A rotating shaft 3 is fixedly connected to one side. A door closing sensor 13, an electric push rod 14 and a filling pipe 19 are installed inside. A pressure relief conduit 18 is fixedly connected to the bottom and a protective operating chamber 20 is fixedly connected to the top. It adopts a closed steel cavity structure, which can block impact energy and fragments in the event of accidental explosion of the gas cylinder, provide core explosion-proof protection for the internal filling station, and provide integrated installation space for various safety mechanisms and gas circuit components. Rotating shaft 3: used to realize the opening and closing of the explosion-proof door 4. It is fixedly connected to the upper side of the box 2 and rotates with the explosion-proof door 4. It supports the explosion-proof door 4 to open up and down. After the door is opened, an open material discharge port is formed at the top of the box 2. The operator can observe the internal work position and complete the loading and unloading of gas cylinders without leaning out, which greatly improves the convenience and visibility of the loading operation. Explosion-proof door 4: Used to close the opening of the box 2 and support the gas cylinder support structure. It is rotatably connected to the rotating shaft 3, the bottom is fixedly connected to the tank support 5, the two sides are fixedly connected to the anti-detachment guardrail 6, the inner side is fixedly connected to the partition 7 and the feeding chute 11, and the outer side is fixedly connected to the door handle 17. When closed, it can form a complete explosion-proof protection space together with the box 2. When opened, it drives the tank support structure to swing synchronously to the bottom of the discharge port, realizing the integrated linkage between the door and the support structure, simplifying the operation process of taking out and putting in the gas cylinder. Tank support 5: Used to support the bottom of the gas cylinder and install a buffer protection structure. It is fixedly connected to the bottom of the explosion-proof door 4. A buffer groove 8 is opened on the surface. It flips synchronously with the explosion-proof door 4. When the door is opened, it is close to the discharge port to receive the gas cylinder. When the door is closed, it brings the gas cylinder into the filling station of the box 2. There is no need for the operator to reach into the box 2 for alignment. At the same time, it provides an installation carrier for the buffer and shock absorption structure to ensure the stability of the gas cylinder placement. Anti-detachment guardrail 6: Used to limit and protect the sides of the gas cylinder. It is fixedly connected to both sides of the explosion-proof door 4. The side has a locking slot 16, which can block the gas cylinder from both sides to prevent the gas cylinder from rolling and misaligning during the loading and unloading process, thus improving the safety of the loading process. At the same time, it can be used with the locking mechanism to realize the mechanical locking of the door. It is a multi-purpose and optimized structural layout. Partition 7: Used to separate the two filling stations. It is fixedly connected to the explosion-proof door 4 and located in the middle of the two anti-detachment guardrails 6. It divides the internal space into two independent gas cylinder filling stations, enabling the simultaneous filling of two cylinders. At the same time, it avoids the two gas cylinders from colliding and interfering with each other during the picking, placing and filling process, thereby improving the regularity of the station layout and the safety of filling. Buffer groove 8: Used to accommodate and limit the buffer spring 9. It is opened inside both sides of the support 5 to provide installation space and lateral limit for the buffer spring 9, ensuring that the spring can stretch and contract smoothly in the vertical direction, avoiding lateral displacement of the spring under force, and ensuring the operational stability of the buffer and shock absorption structure. Buffer spring 9: Used to provide vertical buffering force, fixedly connected inside the buffer groove 8, and fixedly connected to the top of the buffer pad 10. It can absorb the vertical impact force when the gas cylinder is placed, alleviate the rigid collision of the gas cylinder falling, realize buffering and shock absorption protection, avoid structural damage to the bottom of the gas cylinder due to rigid impact, and extend the service life of the gas cylinder. Buffer pad 10: Used to directly support the bottom of the gas cylinder and buffer contact. It is fixedly connected to the top of the buffer spring 9. The soft contact surface can prevent the bottom of the gas cylinder from directly and rigidly contacting the steel tank support 5. Together with the bottom buffer spring 9, it absorbs impact vibration, further improves the shock absorption and protection effect, and increases the friction to prevent the bottom of the gas cylinder from sliding and shifting. Feed chute 11: Used to guide the gas cylinder to slide smoothly into the support station. It is set on the side of the explosion-proof door 4 facing the inside of the box 2. The surface is fixedly connected to the anti-wear sliding pad 12, which can provide a guide slide for the gas cylinder to be put in. The gas cylinder slides smoothly down the chute to the buffer pad 10, without the need for the operator to accurately position and put it down, reducing the difficulty of feeding heavy gas cylinders and improving the convenience of operation. Anti-wear pad 12: Used to protect the outer wall of the gas cylinder from scratches. It is fixedly connected to the surface of the feed chute 11. It is made of soft and wear-resistant material and is in flexible contact with the outer wall of the gas cylinder throughout the process. It avoids friction and scratches between the gas cylinder and the metal chute during the descent of the gas cylinder, effectively protecting the resin and fiber winding structure of the outer layer of the carbon fiber gas cylinder and ensuring the appearance and structural integrity of the gas cylinder. Door closing sensor 13: Used to detect the opening and closing status of explosion-proof door 4. It is fixedly connected to one side inside the housing 2. The signal is connected to the main control unit 21. It can accurately identify the door's closed and open status, providing a status signal basis for door interlock control. It ensures that inflation can only be started after the door is completely closed. It is the core detection element for the door opening power-off and closing self-locking functions. Electric push rod 14: used to drive the locking component to achieve mechanical self-locking of the door. It is fixedly connected to both sides inside the box 2. The output end is fixedly connected to the locking head 15. It is controlled by the main control unit 21 and can automatically complete the locking and unlocking of the door through electric control. There is no need for manual operation of the lock. The locking action is fast and the locking force is stable. It can effectively prevent the door from being accidentally opened during the filling process and improve the reliability of safety protection. Locking head 15: used to insert into the slot to lock the door, fixedly connected to the output end of the electric push rod 14, corresponding to the position of the locking slot 16, and plugged into the locking slot 16. The structure is simple and the locking is reliable. It can withstand the outward impact of the door, ensuring that the door will not be blown open under the impact of explosion, and strengthening the closing protection strength of the explosion-proof door 4. Locking slot 16: Used to cooperate with locking head 15 to complete door locking and positioning. It is opened on both sides of anti-loosening guardrail 6 and precisely aligned with locking head 15. It relies on the structural strength of anti-loosening guardrail 6 to bear the locking force, without the need to add a locking seat structure, simplifying the door structure design, while ensuring that the locking position is evenly and stably stressed. Door handle 17: Used for operators to control the opening and closing of the explosion-proof door 4. It is fixedly connected to the outside of the explosion-proof door 4, providing the operator with a point of force application, making it easy to lift the explosion-proof door 4 upward and close it downward. It conforms to ergonomic design and improves the convenience of opening and closing the door. Pressure relief conduit 18: Used to directionally release the high-pressure gas flow from the explosion. It is fixedly connected to the bottom of the housing 2 and extends to the outdoor safe area. When the gas cylinder physically explodes, it can directionally guide the expanding high-pressure gas flow and debris to the outdoor safe area for discharge, avoiding the high-pressure gas flow from scattering and impacting indoors. It is suitable for indoor use scenarios and eliminates the secondary safety risks caused by indoor explosion relief. Inflation hose 19: This is a stretchable hose used to deliver high-pressure inflation medium to the gas cylinder. It is fixedly connected inside the housing 2 and connected to the inflation circuit. It can be connected to the gas cylinder mouth to stably deliver high-pressure gas to the inside of the gas cylinder to complete the filling. As the end-acting component of the high-pressure gas circuit, it ensures the airtightness and delivery stability of the inflation process. Protective operating chamber 20: Used to install control elements and operating components, it is fixedly connected to the top of the housing 2. The main control unit 21 is fixedly connected inside, and the audible and visual alarm 22 is fixedly connected to the top. The pressure reducing valve 23 and pressure gauge 24 are installed on the front, which physically isolates the control operating area from the lower high-pressure explosion-proof chamber. Operators can complete all parameter settings and operations without contacting the explosion-proof chamber, which not only ensures operational safety but also provides protective installation space for electrical control components. Main control unit 21: Used to coordinate the logic control and signal processing of the equipment, it is fixedly connected inside the protective operating cabin 20. It integrates a remote communication module and an electric control power-off execution module, and is respectively connected to the door closing sensor 13, electric push rod 14, audible and visual alarm 22, pressure reducing valve 23 and pressure detection element. It can centrally process signals such as door status and pressure data, and automatically execute logic such as door closing self-locking, power-off when fully charged, power-off when opening, and alarm push. It is the core control carrier for realizing automated control and safety protection of the equipment. Audible and visual alarm 22: Used to realize local audible and visual status reminders. It is fixedly connected to the top of the protective operating cabin 20 and controlled by the main control unit 21. In the case of gas cylinders being full or abnormal door opening, it will intuitively remind on-site personnel through dual audible and visual prompts. The warning effect is obvious, making it easy for on-site personnel to quickly know the equipment status and deal with the corresponding working conditions in a timely manner. Pressure reducing valve 23: Used to adjust the inflation output pressure. It is fixedly connected to the front of the protective operating chamber 20 and connected in series in the inflation circuit. It can flexibly adjust the inflation output pressure to adapt to the filling needs of carbon fiber gas cylinders with different volumes and rated pressures, realize universal filling with adjustable pressure, and improve the equipment's adaptability to multiple specifications of gas cylinders. Pressure gauge 24: Used to display the pressure value of the inflation circuit in real time. It is fixedly connected to the front of the protective operation chamber 20 and connected to the inflation circuit. It can intuitively reflect the real-time pressure status of the inflation circuit, making it easy for operators to observe the pressure adjustment results and filling progress, clearly grasp the pressure parameters of the filling process, and ensure the accuracy and controllability of pressure adjustment and filling operations.

[0027] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A pressure-adjustable explosion-proof gas-filled box with self-power-off and remote alarm functions, comprising a support base (1), characterized in that: A box (2) is fixedly connected to the support base (1), a rotating shaft (3) is fixedly connected to one side of the box (2), an explosion-proof door (4) is rotatably connected to the rotating shaft (3), a tank support (5) is fixedly connected to the bottom of the explosion-proof door (4), and anti-detachment guardrails (6) are fixedly connected to both sides of the explosion-proof door (4). A door closing sensor (13) is fixedly connected to one side inside the box (2), and an electric push rod (14) is fixedly connected to both sides inside the box (2). A locking head (15) is fixedly connected to the output end of the electric push rod (14). Locking slots (16) adapted to the locking head (15) are opened on both sides of the anti-detachment guardrail (6). An inflation tube (19) is fixedly connected inside the housing (2). A pressure sensor (25) is fixedly connected to the inflation tube (19). A protective operating chamber (20) is fixedly connected to the top of the housing (2). A main control unit (21) is fixedly connected inside the protective operating chamber (20). A pressure reducing valve (23) and a pressure gauge (24) are fixedly connected to the front of the protective operating chamber (20). The pressure sensor (25), the pressure reducing valve (23), and the pressure gauge (24) are electrically connected to the main control unit (21) through a PCL circuit board.

2. The pressure-adjustable explosion-proof gas-filled box with self-power-off and remote alarm functions according to claim 1, characterized in that: The explosion-proof door (4) flips up and down along the pivot (3) to open and form a discharge port on the top of the box (2).

3. The pressure-adjustable explosion-proof gas-filled box with self-power-off and remote alarm functions according to claim 2, characterized in that: The explosion-proof door (4) is fixedly connected to a partition (7), which is located between two anti-detachment guardrails (6).

4. The pressure-adjustable explosion-proof gas-filled box with self-power-off and remote alarm functions according to claim 3, characterized in that: The can holder (5) has buffer grooves (8) on both sides, and buffer springs (9) are fixedly connected in both buffer grooves (8), and buffer pads (10) are fixedly connected on the buffer springs (9).

5. The pressure-adjustable explosion-proof gas-filled box with self-power-off and remote alarm functions according to claim 4, characterized in that: The explosion-proof door (4) has two feeding chutes (11) on one side facing the inside of the box (2). Anti-wear pads (12) are fixedly connected to the feeding chutes (11), and the gas cylinder can slide along the anti-wear pads (12) onto the buffer pads (10).

6. The pressure-adjustable explosion-proof gas-filled box with self-power-off and remote alarm functions according to claim 5, characterized in that: The explosion-proof door (4) is fixedly connected to a door handle (17) on its outer side.

7. The pressure-adjustable explosion-proof gas-filled box with self-power-off and remote alarm functions according to claim 6, characterized in that: The bottom of the box (2) is fixedly connected to a pressure relief pipe (18).

8. The pressure-adjustable explosion-proof gas-filled box with self-power-off and remote alarm functions according to claim 7, characterized in that: The top of the protective operating cabin (20) is fixedly connected to an audible and visual alarm (22), and the audible and visual alarm (22) is electrically connected to the main control unit (21).

9. The pressure-adjustable explosion-proof gas-filled box with self-power-off and remote alarm functions according to claim 8, characterized in that: The main control unit (21) includes a remote communication module and is connected to the management terminal of the management personnel. The remote communication module is activated when the interlock protection is turned on.

10. The pressure-adjustable explosion-proof gas-filled box with self-power-off and remote alarm functions according to claim 9, characterized in that: The main control unit (21) includes an electric power-off execution module, which is activated when the pressure gauge (24) exceeds a preset value.

Images