Heptafluoropropane fire extinguisher high efficiency filling device

Abstract

The utility model discloses a highly efficient filling device for heptafluoropropane fire extinguishers, comprising a base plate, a gantry and a storage box are installed on the upper part of the base plate, four groups of gas cylinders are fixedly penetrated through the upper part of the base plate, a clearance groove is arranged on the end face of the base plate, an exhaust pipe and an exhaust pump are installed on the upper part of the storage box, one end of the exhaust pipe is clamped with the output end of the exhaust pump, a fixed pipe is installed at the input end of the exhaust pump, and one end of the fixed pipe penetrates the gantry, a plurality of groups of shunt pipes are installed on the side wall of the fixed pipe, and a connector is installed at one end of the plurality of groups of shunt pipes, and a connecting pipe is installed at one end of the plurality of groups of connectors. Beneficial effect: The utility model adopts an I-shaped slide plate, and through the I-shaped slide plate, the operator can use his own weight to quickly complete the pre-installation of a plurality of heptafluoropropane fire extinguishers, thereby improving the working efficiency of the highly efficient filling device for heptafluoropropane fire extinguishers.

Description

Technical Field

[0001] The utility model relates to the technical field of heptafluoropropane fire extinguishers, in particular to a high-efficiency filling device for heptafluoropropane fire extinguishers. Background Art

[0002] Heptafluoropropane fire extinguishing agent is clean, low in toxicity, has good electrical insulation, high fire extinguishing efficiency, and does not damage the atmospheric ozone layer. It is the better clean gas to replace halogenated fire extinguishing agents. In actual use, heptafluoropropane fire extinguishing agent needs to be stored in a fire extinguisher. Now, filling devices are mostly used to complete the work of filling the fire extinguisher with heptafluoropropane fire extinguishing agent. In actual use, it has the advantages of simple operation, stable structure and good use effect.

[0003] The prior art discloses a heptafluoropropane filling device with the publication number of CN216743823U, which includes a base, a moving wheel, a storage box, an exhaust pipe, a first fixed frame, a mounting frame, an installation groove, a movable roller, a hinged seat, a bottom block, an adjusting rod, a movable groove, a fixed groove, a fixed block, a limit block, a second fixed frame, a limit baffle, a connecting pipe, a valve, a connector, a fixed seat, a fixed pipeline, a diversion port, an exhaust pump, a connecting block and a slot. When in use, first, the moving wheel can be used to move the device body. When it is moved to the gas cylinder, the limit block is used to press the adjusting rod downward. At this time, the fixed block at the bottom of the limit block will be inserted into the fixed groove and fixed, and the bottom block will be attached to the ground, so that the device body is fixed, so that there is no need to move the device body during filling. The gas cylinder is moved by the mounting frame, which saves time and effort and is more stable. Afterwards, since an installation groove is arranged inside the installation frame and movable rollers are evenly spaced inside the installation groove, when the gas cylinder is carried to the base for filling, the installation frame can be flipped from the top of the base to the ground, and the rolling property of the movable rollers can be used to assist the gas cylinder to be moved above the base, thereby making it more time-saving and labor-saving to place the gas cylinder on the base. Finally, when the gas cylinder is placed on the base, the limit baffle is flipped down and connected to the outside of the connecting block by the card slot, so that the gas cylinder can be limited to prevent it from falling, thereby improving a certain degree of safety. Connect the connecting pipe to the gas cylinder, turn on the vacuum pump, use the vacuum pipe to draw the heptafluoropropane inside the storage box to the fixed pipeline, and use the diversion port to open the valve and inject it into the gas cylinder.

[0004] In the above utility model, when filling the HFC-227ea fire extinguisher, the operator first needs to manually move the multiple HFC-227ea fire extinguishers to the bottom of the multiple connecting pipes through the installation frame. Only then can the multiple HFC-227ea fire extinguishers and the multiple connecting pipes be connected. In this process, the operator needs to move the multiple HFC-227ea fire extinguishers. Since the HFC-227ea fire extinguisher has a certain weight, the operator's physical strength will be consumed faster, and the working time of pre-installing the multiple HFC-227ea fire extinguishers will be increased, thereby reducing the working efficiency of the utility model.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the utility model provides an efficient filling device for heptafluoropropane fire extinguishers, which has the advantage that operators can use their own weight to quickly complete the pre-installation of multiple heptafluoropropane fire extinguishers, thereby solving the problems in the above-mentioned background technology.

[0008] (II) Technical solution

[0009] In order to achieve the advantage that the operator can use his own weight to quickly complete the pre-installation of multiple heptafluoropropane fire extinguishers, the specific technical solution adopted by the utility model is as follows:

[0010] The invention discloses a high-efficiency filling device for heptafluoropropane fire extinguisher, comprising a bottom plate, a gantry and a storage box are installed on the upper part of the bottom plate, four groups of gas storage cylinders are fixedly penetrated on the upper part of the bottom plate, a clearance groove is arranged on the end surface of the bottom plate, an air extraction pipe and an air extraction pump are installed on the upper part of the storage box, one end of the air extraction pipe is clamped with the output end of the air extraction pump, a fixed pipeline is installed on the input end of the air extraction pump, and one end of the fixed pipeline penetrates the gantry, a plurality of groups of shunt pipes are installed on the side wall of the fixed pipeline, and a connector is installed on one end of the plurality of groups of shunt pipes, and a connecting pipe is installed on one end of the plurality of groups of connectors, and a plurality of groups of shunt pipes are installed on one end. The side walls of the connecting pipes in the groups are each provided with valves, an I-shaped slide plate is slidably installed inside the gantry, a fixing plate is installed inside the gantry, and a plurality of through holes are provided on the end surface of the fixing plate, pull ropes are passed through the interiors of the plurality of through holes, mounting rings are installed at one end of the pull ropes, a plurality of threaded through holes are provided on the side walls of the plurality of mounting rings, fastening bolts are passed through the interiors of the plurality of threaded through holes, a plurality of ball sockets are provided on the inner walls of the plurality of through holes, balls are provided inside the plurality of ball sockets, and the other ends of the plurality of pull ropes are fixedly connected to the upper part of the I-shaped slide plate.

[0011] Furthermore, the diameter lengths of the plurality of groups of ball socket openings are the same as the diameter lengths of the plurality of groups of balls.

[0012] Furthermore, the plurality of groups of threaded through holes and the plurality of groups of fastening bolt threads cooperate with each other.

[0013] Furthermore, the interiors of the four groups of air cylinders are slidably mounted with piston plates, and the lower parts of the four groups of piston plates are mounted with T-shaped rods, one ends of the four groups of T-shaped rods slide through the inner bottom surfaces of the four groups of air cylinders respectively, and the lower parts of the four groups of air cylinders are penetrated by two groups of mounting filters, an air storage box is mounted on the upper part of the bottom plate, and a piston block is slidably mounted inside the air storage box, and two groups of connecting rods are mounted on the upper part of the piston block, one end of the two groups of connecting rods slides through the inner top surface of the air storage box, push plates are mounted on the upper ends of the two groups of connecting rods, and the upper part of the push plates is penetrated by mounting screws, and two groups of mounting nuts are sleeved on the side walls of the mounting screws, the lower ends of the mounting screws are mounted on the upper part of the air storage box, air guide pipes are penetrated between the four groups of air cylinders and the air storage box, and two groups of intercepting filters are penetrated through the upper part of the air storage box.

[0014] Furthermore, the mounting screw cooperates with the two sets of mounting nut threads.

[0015] Furthermore, a control panel is installed on one side of the gantry, and the control panel is electrically connected to the vacuum pump through electric wires.

[0016] Furthermore, four sets of universal wheels are installed at the lower part of the base plate.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a high-efficiency filling device for heptafluoropropane fire extinguisher, which has the following beneficial effects:

[0019] (1) The utility model adopts an I-shaped slide plate. When the efficient filling device for HFC-227ea fire extinguisher is actually used, the operator manually sleeves the multiple sets of mounting rings on the side walls of the multiple HFC-227ea fire extinguishers, and then uses the multiple sets of threaded through holes and the multiple sets of fastening bolt threads to cooperate with each other. The operator manually rotates the multiple sets of fastening bolts clockwise. When the multiple sets of fastening bolts are in close contact with the multiple HFC-227ea fire extinguishers, the operator steps on the I-shaped slide plate by hand. The I-shaped slide plate pulls the multiple sets of pull ropes to move the multiple sets of mounting rings and the multiple HFC-227ea fire extinguishers upward. When the multiple HFC-227ea fire extinguishers are moved up to a suitable position, the multiple sets of connecting pipes can be connected to the multiple HFC-227ea fire extinguishers respectively. The fluoropropane fire extinguishers are connected. During this process, multiple groups of balls are subjected to the friction of multiple groups of pull ropes and roll inside the multiple groups of ball sockets respectively. Since the surface of the multiple groups of balls is smooth, the multiple groups of pull ropes can be prevented from being scratched by the fixed plate. Afterwards, the control panel is used to make the vacuum pump work. The vacuum pump can transfer the heptafluoropropane fire extinguishing agent inside the storage box through the vacuum pipe, fixed pipes, multiple groups of manifolds, multiple groups of connectors and multiple groups of connecting pipes into the interior of multiple heptafluoropropane fire extinguishers. Through the I-shaped slide plate, the operator can use his own weight to quickly complete the pre-installation of multiple heptafluoropropane fire extinguishers, thereby improving the working efficiency of the high-efficiency filling device of heptafluoropropane fire extinguishers.

[0020] (2) The utility model adopts an air cylinder. When the bottom plate needs to be stopped, the operator steps on the push plate with his foot, and the push plate drives the piston block to move downward through two sets of connecting rods. The piston block can push the gas inside the air storage box into the inside of the four sets of air cylinders through four sets of air guide pipes. This part of the gas will push the four sets of piston plates, and the four sets of piston plates will drive the four sets of T-shaped rods to move downward. When the four sets of T-shaped rods are in contact with the ground, the installation screw rods and the two sets of installation nut threads cooperate with each other, and the operator rotates the two sets of installation nuts clockwise and counterclockwise by hand. When the two sets of installation nuts are in close contact with the push plate, the use position of the push plate is fixed. The friction between the four sets of T-shaped rods and the ground can be used to ensure the stability of the bottom plate. Through the set air cylinder, the stopping work of the four corners of the lower part of the bottom plate can be achieved in one operation, which brings convenience to the operation of stopping the high-efficiency filling device of the HFC-227ea fire extinguisher. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of a high-efficiency filling device for a heptafluoropropane fire extinguisher proposed by the utility model;

[0023] Figure 2 It is a top view of the air storage box proposed by the utility model;

[0024] Figure 3 It is a cross-sectional schematic diagram of the air storage box proposed by the utility model;

[0025] Figure 4 It is a three-dimensional diagram of the mounting ring proposed by the utility model;

[0026] Figure 5 The utility model proposes Figure 1 A magnified view of middle;

[0027] Figure 6 The utility model proposes Figure 1 Enlarged view of middle B;

[0028] Figure 7 The utility model proposes Figure 1 Enlarged view of C in the middle.

[0029] In the figure:

[0030] 1. Bottom plate; 2. Gantry; 3. Storage box; 4. Air cylinder; 5. Exhaust pipe; 6. Exhaust pump; 7. Fixed pipeline; 8. Diverter pipe; 9. Connector; 10. Valve; 11. Connecting pipe; 12. I-shaped slide plate; 13. Make way groove; 14. Fixed plate; 15. Through hole; 16. Pull rope; 17. Mounting ring; 18. Threaded through hole; 19. Fastening bolt; 20. Ball socket; 21. Ball; 22. Piston plate; 23. T-bar; 24. Install filter; 25. Air storage box; 26. Air guide pipe; 27. Piston block; 28. Connecting rod; 29. ​​Push plate; 30. Install screw; 31. Install nut; 32. Intercept filter. DETAILED DESCRIPTION

[0031] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0032] According to an embodiment of the utility model, a highly efficient filling device for a heptafluoropropane fire extinguisher is provided.

[0033] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-7As shown, according to the embodiment of the utility model, the efficient filling device of heptafluoropropane fire extinguisher includes a base plate 1, a gantry 2 and a storage box 3 are installed on the upper part of the base plate 1, four groups of gas storage cylinders 4 are fixedly penetrated on the upper part of the base plate 1, and a clearance groove 13 is arranged on the end surface of the base plate 1, and an exhaust pipe 5 and an exhaust pump 6 are installed on the upper part of the storage box 3, one end of the exhaust pipe 5 is clamped with the output end of the exhaust pump 6, and a fixed pipe 7 is installed on the input end of the exhaust pump 6, and one end of the fixed pipe 7 penetrates the gantry 2, and multiple groups of manifolds 8 are installed on the side wall of the fixed pipe 7, and connectors 9 are installed at one end of the multiple groups of manifolds 8, and connecting pipes 11 are installed at one end of the multiple groups of connectors 9, and valves 10 are arranged on the side walls of the multiple groups of connecting pipes 11, and the internal sliding of the gantry 2 is installed with an I-shaped slide Plate 12, a fixing plate 14 is installed inside the gantry 2, and the end surface of the fixing plate 14 is provided with multiple groups of through holes 15, and the interiors of the multiple groups of through holes 15 are penetrated by pull ropes 16, and one end of the multiple groups of pull ropes 16 is installed with mounting rings 17, and the side walls of the multiple groups of mounting rings 17 are provided with multiple groups of threaded through holes 18, and the interiors of the multiple groups of threaded through holes 18 are penetrated by fastening bolts 19, and the inner walls of the multiple groups of through holes 15 are provided with multiple groups of ball sockets 20, and the interiors of the multiple groups of ball sockets 20 are provided with balls 21, and the other ends of the multiple groups of pull ropes 16 are fixedly connected to the upper part of the I-shaped slide plate 12. Through the set I-shaped slide plate 12, the operator can use his own weight to quickly complete the pre-installation of multiple HFC-227ea fire extinguishers, thereby improving the working efficiency of the efficient filling device of HFC-227ea fire extinguisher.

[0034] In one embodiment, the diameter length of the openings of the multiple ball sockets 20 is the same as the diameter length of the multiple balls 21 , so as to prevent the multiple balls 21 from moving out of the multiple ball sockets 20 .

[0035] In one embodiment, the threads of the plurality of threaded through holes 18 and the plurality of fastening bolts 19 cooperate with each other to facilitate adjustment of the interior of the plurality of fastening bolts 19 .

[0036] In one embodiment, piston plates 22 are slidably mounted inside the four groups of gas storage cylinders 4, and T-shaped rods 23 are mounted at the bottom of the four groups of piston plates 22, and one end of the four groups of T-shaped rods 23 slides through the inner bottom surface of the four groups of gas storage cylinders 4, respectively. Two groups of installation filters 24 are penetrated at the bottom of the four groups of gas storage cylinders 4, and an air storage box 25 is mounted on the upper part of the bottom plate 1, and a piston block 27 is slidably mounted inside the air storage box 25, and two groups of connecting rods 28 are mounted on the upper part of the piston block 27, and one end of the two groups of connecting rods 28 slides through the inner top surface of the air storage box 25, and the two groups of connecting rods 28 are mounted on the upper part of the piston block 27. A push plate 29 is installed at the upper end of the group connecting rod 28, and a mounting screw 30 is passed through the upper part of the push plate 29, and two groups of mounting nuts 31 are sleeved on the side wall of the mounting screw 30, and the lower end of the mounting screw 30 is installed on the upper part of the air storage box 25, and an air guide pipe 26 is passed through the four groups of air cylinders 4 and the air storage box 25, and two groups of interception filters 32 are passed through the upper part of the air storage box 25. Through the set air cylinders 4, the stopping work of the four corners of the lower part of the bottom plate 1 can be achieved in one operation, which brings convenience to the operation of stopping work of the efficient filling device of the heptafluoropropane fire extinguisher.

[0037] In one embodiment, the threads of the mounting screw 30 and the two sets of mounting nuts 31 cooperate with each other to facilitate adjustment of the interior of the two sets of mounting nuts 31 .

[0038] In one embodiment, a control panel is installed on one side of the gantry 2, and the control panel is electrically connected to the vacuum pump 6 through wires. The control panel can be implemented through simple programming by technicians in this field, which is common knowledge in the field. It is only used without modification, so the control method and circuit connection will not be described in detail.

[0039] In one embodiment, four sets of universal wheels are installed at the lower part of the base plate 1, and the four sets of universal wheels facilitate the movement and use of the base plate 1.

[0040] Working principle:

[0041] When the efficient filling device for heptafluoropropane fire extinguishers is actually used, the operator manually sleeves the multiple sets of mounting rings 17 on the side walls of the multiple heptafluoropropane fire extinguishers, and then uses the multiple sets of threaded through holes 18 and the multiple sets of fastening bolts 19 to cooperate with each other. The operator manually rotates the multiple sets of fastening bolts 19 clockwise. When the multiple sets of fastening bolts 19 are in close contact with the multiple heptafluoropropane fire extinguishers, the operator steps on the I-shaped slide plate 12 by hand. The I-shaped slide plate 12 pulls the multiple sets of pull ropes 16 to move the multiple sets of mounting rings 17 and the multiple heptafluoropropane fire extinguishers upward. When the multiple heptafluoropropane fire extinguishers are in close contact with each other, the operator manually steps on the I-shaped slide plate 12. The I-shaped slide plate 12 pulls the multiple sets of pull ropes 16 to move the multiple sets of mounting rings 17 and the multiple heptafluoropropane fire extinguishers upward. When the device is moved to a suitable position, the multiple groups of connecting pipes 11 can be connected to the multiple heptafluoropropane fire extinguishers respectively. During this process, the multiple groups of balls 21 are subjected to the friction of the multiple groups of pull ropes 16 and roll inside the multiple groups of ball sockets 20 respectively. Since the surfaces of the multiple groups of balls 21 are smooth, the multiple groups of pull ropes 16 can be prevented from being scratched by the fixed plate 14. Afterwards, the control panel is used to make the vacuum pump 6 work. The vacuum pump 6 can pump the heptafluoropropane fire extinguishing agent inside the storage box 3 through the vacuum pipe 5, the fixed pipeline 7, the multiple groups of manifolds 8, the multiple groups of connectors 9 and the multiple groups of connecting pipes 11, and enter the multiple heptafluoropropane fire extinguishers. The inside of the device, through the provided I-shaped slide plate 12, the operator can use his own weight to quickly complete the pre-installation of multiple HFC-227ea fire extinguishers, thereby improving the working efficiency of the HFC-227ea fire extinguisher high-efficiency filling device. At the same time, when it is necessary to stop the bottom plate 1, the operator steps on the push plate 29 with his foot, and the push plate 29 drives the piston block 27 to move downward through the two sets of connecting rods 28. The piston block 27 can push the gas inside the gas storage box 25 into the inside of the four sets of gas storage cylinders 4 through the four sets of air guide pipes 26. This part of the gas will push the four sets of piston plates 22, and the four sets of piston plates 22 will drive the four sets of T The four groups of T-shaped rods 23 move downward, and when the four groups of T-shaped rods 23 are in contact with the ground, the mounting screw 30 cooperates with the two groups of mounting nuts 31 threads, and the operator rotates the two groups of mounting nuts 31 clockwise and counterclockwise by hand. When the two groups of mounting nuts 31 are in close contact with the push plate 29, the use position of the push plate 29 is fixed, and the friction between the four groups of T-shaped rods 23 and the ground can ensure the stability of the base plate 1. Through the set gas storage cylinder 4, the stopping work of the four corners of the lower part of the base plate 1 can be achieved in one operation, which brings convenience to the operation of the stopping work of the efficient filling device of the heptafluoropropane fire extinguisher.

[0042] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. High-efficiency filling device for heptafluoropropane fire extinguisher, characterized in that: The invention comprises a bottom plate (1), a gantry (2) and a material storage box (3) are installed on the upper part of the bottom plate (1), four groups of air storage cylinders (4) are fixedly passed through the upper part of the bottom plate (1), a clearance groove (13) is arranged on the end surface of the bottom plate (1), an air extraction pipe (5) and an air extraction pump (6) are installed on the upper part of the material storage box (3), one end of the air extraction pipe (5) is clamped with the output end of the air extraction pump (6), a fixed pipe (7) is installed on the input end of the air extraction pump (6), and one end of the fixed pipe (7) passes through the gantry (2), a plurality of groups of shunt pipes (8) are installed on the side wall of the fixed pipe (7), and a connector (9) is installed on one end of each of the plurality of groups of shunt pipes (8), and a connecting pipe (11) is installed on one end of each of the plurality of groups of connectors (9), and the side walls of the plurality of groups of connecting pipes (11) are A valve (10) is provided, an I-shaped slide plate (12) is slidably installed inside the gantry (2), a fixing plate (14) is installed inside the gantry (2), and a plurality of through holes (15) are provided on the end surface of the fixing plate (14), a pull rope (16) is passed through the interior of the plurality of through holes (15), a mounting ring (17) is installed at one end of the plurality of pull ropes (16), a plurality of threaded through holes (18) are provided on the side walls of the plurality of mounting rings (17), a fastening bolt (19) is passed through the interior of the plurality of threaded through holes (18), a plurality of ball sockets (20) are provided on the inner walls of the plurality of through holes (15), a ball (21) is provided inside the plurality of ball sockets (20), and the other ends of the plurality of pull ropes (16) are fixedly connected to the upper part of the I-shaped slide plate (12).

2. The efficient filling device for heptafluoropropane fire extinguisher according to claim 1, characterized in that: The diameter lengths of the openings of the plurality of groups of ball sockets (20) are the same as the diameter lengths of the plurality of groups of rolling balls (21).

3. The efficient filling device for heptafluoropropane fire extinguisher according to claim 1, characterized in that: The plurality of groups of threaded through holes (18) and the plurality of groups of fastening bolts (19) threads cooperate with each other.

4. The efficient filling device for heptafluoropropane fire extinguisher according to claim 1, characterized in that: The four groups of gas storage cylinders (4) are all slidably mounted with piston plates (22) inside, and the lower parts of the four groups of piston plates (22) are all mounted with T-shaped rods (23), one end of the four groups of T-shaped rods (23) respectively slides through the inner bottom surface of the four groups of gas storage cylinders (4), and the lower parts of the four groups of gas storage cylinders (4) are all penetrated with two groups of installation filters (24), the upper part of the bottom plate (1) is mounted with a gas storage box (25), and the inner part of the gas storage box (25) is slidably mounted with a piston block (27), and the upper part of the piston block (27) is mounted with two groups of connecting rods (28), the two connecting rods (28) are connected to the piston block (27) and the two connecting rods (28) are connected to the piston block (27). One end of the connecting rod (28) of the group slides through the inner top surface of the air storage box (25), and the upper ends of the two groups of connecting rods (28) are installed with push plates (29), and the upper part of the push plates (29) is penetrated by a mounting screw (30), and the side wall of the mounting screw (30) is sleeved with two groups of mounting nuts (31), the lower end of the mounting screw (30) is installed with the upper part of the air storage box (25), and an air guide pipe (26) is penetrated between the four groups of air storage cylinders (4) and the air storage box (25), and two groups of interception filters (32) are installed through the upper part of the air storage box (25).

5. The efficient filling device for heptafluoropropane fire extinguisher according to claim 4, characterized in that: The mounting screw rod (30) and the two sets of mounting nuts (31) are threadably matched with each other.

6. The efficient filling device for heptafluoropropane fire extinguisher according to claim 1, characterized in that: A control panel is installed on one side of the gantry (2), and the control panel is electrically connected to the air pump (6) via an electric wire.

7. The efficient filling device for heptafluoropropane fire extinguisher according to claim 1, characterized in that: Four sets of universal wheels are installed at the lower part of the base plate (1).

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