Parallel type inflating device

Abstract

The utility model discloses a parallel type inflating device, and belongs to the field of water life-saving equipment. Comprising an inflation device body, an opening is formed downwards in the inflation device body, a containing cavity is formed, and a trigger installation base and a gas cylinder installation base are arranged on the left side and the right side of the upper portion of the inflation device body side by side; the trigger is mounted on the trigger mounting seat and comprises a trigger shell, a trigger assembly, a trigger spring, a buckle and a water-sensitive paper sleeve; the indicator inner shell is arranged in the inflating device main body in a sliding manner; the pricking needle assembly is arranged in the accommodating cavity, is positioned below the gas cylinder mounting seat and can slide up and down; the excitation handle is arranged below the indicator inner shell and the pricking needle assembly and is hinged with the inflating device main body; and the gas cylinder is arranged on the gas cylinder mounting seat and is connected with the trigger in parallel. The device has the advantages that the overall height is reduced, the device is more suitable for small life-saving equipment, and the stability is higher under the conditions of daily storage and low-temperature environment triggering.

Description

Technical Field

[0001] The utility model belongs to the technical field of water lifesaving equipment, and particularly relates to a parallel type inflation device. Background Art

[0002] With the continuous upgrading of lifesaving equipment, safety requirements for these devices are becoming increasingly stringent, and they are gradually trending towards miniaturization and portability. In some self-inflating lifebuoys and life jackets, the inflation device is one of the components that occupies the largest space. Current inflation devices generally employ a linear arrangement in which the inflator body, trigger, and gas cylinder are installed. This linear arrangement results in a long length, which is detrimental to reducing the overall height of the lifesaving device. Furthermore, the trigger, a key component of the inflatable device, generally has both manual and automatic triggering functions. Automatic triggering typically involves releasing spring pressure to push a pin to puncture the gas cylinder. Locking the spring force directly affects the speed and force of the trigger. Faster triggering speed and greater force increase the safety of the lifesaving device. Conversely, if the triggering fails, the lifebuoy may not inflate in time or the gas cylinder may not be punctured, rendering the device ineffective. This poses a safety hazard.

[0003] In the existing technology, such as the "water sensor trigger device" provided by China Utility Model Patent Authorization Announcement No. CN216834217U, and the "dual-purpose life-saving inflatable device on water" disclosed in China Utility Model Patent Authorization Announcement No. CN2685231Y, both adopt the linear installation structure described above, so both have the problem of being unfavorable for reducing the overall height of the life-saving equipment; at the same time, the latter uses a water-soluble detonating piece when releasing the spring elastic force. Although the reaction speed is fast, it is easy to be affected by moisture and has a weak triggering force.

[0004] In view of the above situation, it is necessary to design a parallel inflatable device with a simple structure, low cost, effective reduction in overall height, convenient for daily storage, and more stable operation when activated by water. To this end, the applicant has made a useful design, and the technical solution to be introduced below was produced in this context. Utility Model Content

[0005] The task of the utility model is to provide a parallel inflation device, which helps to improve the main structure of the inflation device so that the trigger and the gas cylinder can be installed in parallel, greatly reducing the overall height and making the inflation device more suitable for life-saving equipment that requires a compact size. It is also beneficial to improve the trigger structure so that the inflation device has better stability during daily storage and when triggered in a low-temperature environment.

[0006] The task of the present utility model is completed as follows. A parallel inflating device includes an inflating device main body. The inflating device main body forms an opening downward and constitutes a receiving cavity within the opening. On the left and right sides above the inflating device main body, a trigger mounting seat and a gas cylinder mounting seat are juxtaposed. A trigger mounted on the trigger mounting seat, which includes a trigger housing, a trigger assembly disposed within and connected to the trigger housing, a trigger spring sleeved on the trigger assembly, a ring buckle sleeved on the trigger assembly and used to compress the trigger spring, and a water-sensitive paper sleeve sleeved on the ring buckle to hold the ring buckle tightly around the trigger assembly. An indicator inner shell, which is slidably disposed up and down within the receiving cavity of the inflating device main body and is located below the trigger mounting seat. A stabbing needle assembly, which is also disposed within the receiving cavity of the inflating device main body and is located below the gas cylinder mounting seat and can slide up and down. An actuating handle, which is disposed below the indicator inner shell and the stabbing needle assembly and is hinged to the inflating device main body. A gas cylinder, which is disposed on the gas cylinder mounting seat and is arranged in parallel with the trigger.

[0007] In a specific embodiment of the present utility model, the inflating device main body forms a through hole in the front and rear direction at the position between the trigger mounting seat and the gas cylinder mounting seat. Sealing rings are respectively embedded at the front and rear edges of the through hole. An air inlet hole is provided on the inner wall of the through hole, and the air inlet hole communicates with the gas cylinder mounting seat.

[0008] In another specific embodiment of the present utility model, on the front and rear side walls of the trigger mounting seat of the inflating device main body, an actuating handle shaft hole is respectively provided. The actuating handle is rotatably supported on the actuating handle shaft hole through an actuating handle shaft. One end of the actuating handle abuts against the lower part of the stabbing needle assembly above, while the other end abuts against the indicator inner shell. A pull rope is also connected to the end of the other end of the actuating handle, that is, the end far from the stabbing needle assembly, and a pull pellet is fixed on the pull rope.

[0009] In yet another specific embodiment of the present utility model, the trigger mounting seat forms a trigger mounting seat cavity with an upward opening and communicating with the receiving cavity of the inflating device main body. The trigger assembly, trigger spring, ring buckle and water-sensitive paper sleeve of the trigger are disposed within the trigger mounting seat cavity. External threads are formed on the outer side wall of the trigger mounting seat, and internal threads for screwing and fixing with the external threads are formed on the inner wall at the lower end of the trigger housing of the trigger. [[ID=eleven]]

[0010] In still another specific embodiment of the present utility model, the gas cylinder mounting seat forms a gas cylinder mounting seat cavity with an upward opening and communicating with the receiving cavity of the inflating device main body. The inner wall of the gas cylinder mounting seat cavity is threadedly connected to the bottle mouth of the gas cylinder, and a sealing gasket is provided between the bottom of the gas cylinder mounting seat cavity and the gas cylinder.

[0011] In still another specific embodiment of the present utility model, the inner shell of the indicator is snapped into the accommodation cavity of the inflation device main body from bottom to top through a set of snap fasteners of the inner shell of the indicator. A clamping groove for cooperating with the snap fasteners of the inner shell of the indicator is formed on the inner wall of the accommodation cavity of the inflation device main body. An inflation device main body indicator window is opened at the position of the inflation device main body corresponding to the inner shell of the indicator. A boosting spring is arranged between the upper part of the inner shell of the indicator and the inflation device main body. A different-color indication area is formed at the lower end on one side of the inner shell of the indicator corresponding to the position of the inflation device main body indicator window. When the inflation device is in an unused state, the different-color indication area is located at the position where the inflation device main body indicator window is located. When the inflation device is in a used state, the different-color indication area is located below the inflation device main body indicator window to display the color of the main body of the inner shell of the indicator, and the two colors are different.

[0012] In a further specific embodiment of the present utility model, a trigger assembly clamping hole is formed in the middle of the upper end of the trigger housing. A connecting rod is formed in the middle of the upper end surface of the trigger assembly. A connecting clamping foot is formed at the upper end of the connecting rod. A groove is formed at the position of the end of the connecting rod close to the connecting clamping foot. The connecting clamping foot is used for snap connection with the trigger assembly clamping hole. An excitation rod extending downward is formed in the middle of the lower end surface of the trigger assembly. The trigger spring and the loop are sleeved on the connecting rod from top to bottom in sequence. The upper end of the trigger spring abuts against the loop, and the lower end abuts against the trigger assembly. A circle of loop clamping feet is formed at intervals around the connecting rod above the loop. A boss protrudes from each of the loop clamping feet toward the groove. The loop is used for tightly clamping the connecting rod by tightening the loop clamping feet so that the bosses are snapped into the grooves. The water-sensitive paper sleeve is sleeved outside the loop clamping feet and keeps the loop clamping feet in a tightened state.

[0013] In an even further specific embodiment of the present utility model, the water-sensitive paper sleeve is wound by a single layer of water-sensitive paper, and the water-sensitive paper is a mesh paper fiber.

[0014] In yet a further specific embodiment of the present utility model, a thimble that penetrates into the gas cylinder mounting seat and abuts against the gas cylinder is formed at the upper end of the thimble assembly. A thimble assembly sealing ring is sleeved on the outer wall of the thimble assembly, and the thimble assembly sealing ring is used to prevent the gas in the gas cylinder from overflowing from around the thimble assembly.

[0015] In yet an even further specific embodiment of the present utility model, the cross section of the mounting hole is in a structure of the letter "D".

[0016] After the utility model adopts the above structure, the beneficial effects are as follows: First, since the trigger mounting seat and the gas cylinder mounting seat for installing the trigger and the gas cylinder are respectively arranged in parallel on the left and right sides above the main body of the inflation device, the two are in a parallel connection state, thus greatly reducing the overall height of the device and making the inflation device more suitable for life-saving equipment with small size requirements; Second, since the structure of using the water-sensitive paper sleeve to hold the snap ring to lock the trigger spring is adopted, and the water-sensitive paper is not easy to be affected by moisture and can also be softened and broken under low water temperature conditions, the stability is higher during daily storage and triggering in a low-temperature environment. Brief Description of the Drawings

[0017] Figure 1 Schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0018] Figure 2 Schematic diagram of the trigger structure of an embodiment of the utility model;

[0019] Figure 3 Schematic diagram of the planar structure of an embodiment of the utility model.

[0020] In the figure: 1. Main body of the inflation device, 11. Trigger mounting seat, 111. Trigger mounting seat cavity, 112. External thread, 12. Gas cylinder mounting seat, 121. Gas cylinder mounting seat cavity, 1211. Sealing gasket, 13. Mounting hole, 131. Air inlet hole, 14. Excitation handle shaft hole, 15. Inflation device main body indication window, 16. Card slot, 17. Mounting hole sealing ring; 2. Trigger, 21. Trigger housing, 211. Internal thread, 212. Trigger assembly card hole, 22. Trigger assembly, 221. Connecting rod, 222. Excitation rod, 223. Groove, 224. Connecting card feet, 23. Trigger spring, 24. Snap ring, 241. Snap ring card feet, 242. Boss, 25. Water-sensitive paper sleeve; 3. Gas cylinder; 4. Indicator inner shell, 41. Boosting spring, 42. Different-color indication area, 43. Indicator inner shell buckle; 5. Needle assembly, 51. Thumb pin, 52. Needle assembly sealing ring; 6. Excitation handle, 61. Excitation handle shaft, 62. Pulling rope, 63. Pulling pellet. Detailed Description of the Specific Embodiment

[0021] The following will describe in detail the specific embodiments of the present utility model in conjunction with the accompanying drawings. However, the description of the embodiments is not a limitation on the technical solution. Any change in form rather than in essence based on the concept of the present utility model should be regarded as the protection scope of the present utility model.

[0022] In the following description, all concepts related to the directionality or orientation, such as up, down, left, right, front, and back, are based on Figure 1 the position shown, and thus cannot be understood as a special limitation on the technical solution provided by the present utility model.

[0023] Please refer to Figure 1 Figure 1 , the utility model relates to a parallel inflating device, which comprises an inflating device main body 1. The inflating device main body 1 forms an opening downward and constitutes a receiving cavity in the opening. On the left and right sides above the inflating device main body 1, a trigger mounting seat 11 and a gas cylinder mounting seat 12 are juxtaposed; a trigger 2 mounted on the trigger mounting seat 11, the trigger 2 comprises a trigger housing 21, a trigger assembly 22 arranged in the trigger housing 21 and connected to the trigger housing 21, a trigger spring 23 sleeved on the trigger assembly 22, a snap ring 24 sleeved on the trigger assembly 22 and used for compressing the trigger spring 23, and a water-sensitive paper sleeve 25 sleeved on the snap ring 24 to hold the trigger assembly 22 tightly; an indicator inner shell 4, which is slidably arranged up and down in the receiving cavity of the inflating device main body 1 and is located below the trigger mounting seat 11; a needle assembly 5, which is also arranged in the receiving cavity of the inflating device main body 1 and is located below the gas cylinder mounting seat 12 and can slide up and down; an actuating handle 6, which is arranged below the indicator inner shell 4 and the needle assembly 5 and is hinged to the inflating device main body 1; a gas cylinder 3, which is arranged on the gas cylinder mounting seat 12 and is arranged in parallel with the trigger 2.

[0024] Further, an installation hole 13 penetrating through the front and back is formed at the position between the trigger mounting seat 11 and the gas cylinder mounting seat 12 of the inflating device main body 1. Installation hole sealing rings 17 are respectively embedded at the front and back side edges of the installation hole 13. An air inlet hole 131 is formed on the inner wall of the installation hole 13, and the air inlet hole 131 is communicated with the gas cylinder mounting seat 12. The cross section of the installation hole 13 is in the shape of the letter "D". Actuating handle shaft holes 14 are respectively formed on the front and back side walls of the trigger mounting seat 11 of the inflating device main body 1. The actuating handle 6 is rotatably supported on the actuating handle shaft holes 14 through an actuating handle shaft 61. One end of the actuating handle 6 abuts against the lower part of the needle assembly 5, and the other end abuts against the indicator inner shell 4. A pull rope 62 is further connected to the other end of the actuating handle 6, that is, the end far from the needle assembly 5, and a pull pill 63 is fixed on the pull rope 62.

[0025] In this embodiment, a trigger mounting seat cavity 111 with an upward opening and communicated with the receiving cavity of the inflating device main body 1 is formed on the trigger mounting seat 11. The trigger assembly 22, the trigger spring 23, the snap ring 24 and the water-sensitive paper sleeve 25 of the trigger 2 are arranged in the trigger mounting seat cavity 111. External threads 112 are formed on the outer side wall of the trigger mounting seat 11, and internal threads 211 for screwing and fixing with the external threads 112 are formed on the inner wall of the lower end of the trigger housing 21 of the trigger 2.

[0026] Furthermore, the aforementioned gas cylinder mounting seat 12 is formed with a gas cylinder mounting seat cavity 121 that is open upward and connected to the accommodating cavity of the inflation device main body 1. The inner wall of the aforementioned gas cylinder mounting seat cavity 121 is threadedly connected to the bottle mouth of the gas cylinder 3, and a sealing gasket 1211 is provided between the bottom of the aforementioned gas cylinder mounting seat cavity 121 and the gas cylinder 3.

[0027] In this embodiment, the aforementioned indicator inner shell 4 is inserted into the accommodating cavity of the inflatable device main body 1 from bottom to top through a group of indicator inner shell buckles 43. The inner wall of the accommodating cavity of the aforementioned inflatable device main body 1 is provided with a card groove 16 for cooperating with the indicator inner shell buckle 43. The aforementioned inflatable device main body 1 is provided with an inflatable device main body indication window 15 at a position corresponding to the indicator inner shell 4. A booster spring 41 is provided between the upper part of the aforementioned indicator inner shell 4 and the inflatable device main body 1. A different-color indication area 42 is formed at the lower end of one side of the aforementioned indicator inner shell 4 at a position corresponding to the position of the inflatable device main body indication window 15. When the inflatable device is in an unused state, the different-color indication area 42 is located at the position of the inflatable device main body indication window 15. When the inflatable device is in an used state, the different-color indication area 42 is located below the inflatable device main body indication window 15 and displays the color of the indicator inner shell 4 body, and the two colors are different.

[0028] See also Figure 2 Combined with Figure 1 The trigger assembly card hole 212 is formed in the middle of the upper end of the trigger housing 21, and the middle of the upper end surface of the trigger assembly 22 is formed with a connecting rod 221. The upper end of the connecting rod 221 is formed with a connecting card foot 224. The end of the connecting rod 221 is close to the connecting card foot 224 and has a groove 223. The connecting card foot 224 is used to be snap-connected with the trigger assembly card hole 212. The lower end surface of the trigger assembly 22 is formed with a downwardly extending excitation rod 222. The trigger spring 23 and the ring buckle 24 are sequentially arranged from top to bottom. It is sleeved on the connecting rod 221, and the upper end of the trigger spring 23 abuts on the ring buckle 24, and the lower end abuts on the trigger assembly 22. A circle of ring buckle feet 241 are formed above the connecting rod 221 at intervals. The ring buckle feet 241 have a boss 242 protruding toward the groove 223. The ring buckle 24 is used to hold the connecting rod 221 by tightening the ring buckle feet 241 so that the boss 242 is stuck in the groove 223. The water-sensitive paper sleeve 25 is sleeved on the outside of the ring buckle feet 241 and keeps the ring buckle feet 241 in a tightened state.

[0029] Furthermore, the aforementioned water-sensitive paper sleeve 25 is formed by winding a single layer of water-sensitive paper, and the water-sensitive paper is a mesh paper fiber.

[0030] Further, the upper end of the aforementioned lancet assembly 5 is formed with a thimble 51 that penetrates into the gas cylinder mounting seat 12 and abuts against the gas cylinder 3. A lancet assembly sealing ring 52 is sleeved on the outer wall of the aforementioned lancet assembly 5, and the lancet assembly sealing ring 52 is used to prevent the gas in the gas cylinder 3 from overflowing around the lancet assembly 5.

[0031] Please refer to Figure 1 , Figure 2 and Figure 3 , during the actual use process, the inflation device is fixed on the lifebuoy or life jacket through the aforementioned mounting hole 13 and screws and nuts. The screw is of a hollow structure and is communicated with the air inlet hole 131. One end of the screw leads to the inside of the lifebuoy or life jacket. When the aforementioned pull tab 63 is pulled, the aforementioned activation handle 6 rotates counterclockwise around the activation handle shaft 61 and the end close to the lancet assembly 5 is lifted upward, causing the thimble 51 of the aforementioned lancet assembly 5 to displace upward and pierce the gas cylinder 3. The gas in the gas cylinder 3 enters the hollow screw through the air inlet hole 131 and then inflates the lifebuoy or life jacket, thereby completing the manual activation process of the inflation device; when the inflation device falls into the water, the aforementioned water-sensitive paper sleeve 25 absorbs water and breaks after touching the water, the aforementioned loop buckle leg 241 opens and unlocks from the connecting rod 221, the aforementioned trigger spring 23 releases elastic potential energy and instantaneously pushes the trigger assembly 22 to eject downward, the activation rod 222 on the aforementioned trigger assembly 22 hits downward on the inner shell 4 of the indicator, causing the inner shell 4 of the indicator to push the activation handle 6 to rotate counterclockwise around the activation handle shaft 61, one end of the aforementioned activation handle 6 pushes the lancet assembly 5 upward, the thimble 51 of the aforementioned lancet assembly 5 displaces upward and pierces the gas cylinder 3, and the gas in the gas cylinder 3 enters the hollow screw through the air inlet hole 131 and then inflates the lifebuoy or life jacket, thereby completing the automatic activation process of the inflation device.

[0032] Due to the adoption of the above structure, the present utility model not only effectively reduces the overall height and volume of the inflation device, but also can inflate the lifebuoy or life jacket through manual and automatic activation processes under actual use and water-falling states. The operation is simple, the working stability is good, the use is safe and reliable, and it can be widely applied to water rescue and disaster relief.

Claims

1. A parallel inflating device, characterized in that: It includes an inflation device main body (1). The inflation device main body (1) has an opening formed downward and a receiving cavity is formed within the opening. On the left and right sides above the inflation device main body (1), a trigger mounting seat (11) and a gas cylinder mounting seat (12) are formed side by side; a trigger (2) mounted on the trigger mounting seat (11), the trigger (2) includes a trigger housing (21), a trigger assembly (22) disposed within the trigger housing (21) and connected to the trigger housing (21), a trigger spring (23) sleeved on the trigger assembly (22), a buckle (24) sleeved on the trigger assembly (22) and used for compressing the trigger spring (23), and a water-sensitive paper sleeve (25) sleeved on the buckle (24) to hold the buckle (24) tightly around the trigger assembly (22); an indicator inner shell (4), the indicator inner shell (4) is slidably disposed up and down within the receiving cavity of the inflation device main body (1) and is located below the trigger mounting seat (11); a needle assembly (5), the needle assembly (5) is also disposed within the receiving cavity of the inflation device main body (1) and is located below the gas cylinder mounting seat (12) and can slide up and down; an activation handle (6), the activation handle (6) is disposed below the indicator inner shell (4) and the needle assembly (5) and is hinged to the inflation device main body (1); a gas cylinder (3), the gas cylinder (3) is disposed on the gas cylinder mounting seat (12) and is arranged in parallel with the trigger (2).

2. The parallel inflating device according to claim 1, characterized in that: At the position between the trigger mounting seat (11) and the gas cylinder mounting seat (12) of the inflation device main body (1), an installation hole (13) penetrating through from front to back is formed. Installation hole sealing rings (17) are respectively embedded at the front and rear side edges of the installation hole (13). An air inlet hole (131) is opened on the inner wall of the installation hole (13), and the air inlet hole (131) communicates with the gas cylinder mounting seat (12).

3. The parallel inflating device according to claim 1, characterized in that: On the front and rear side walls of the trigger mounting seat (11) of the inflation device main body (1), an activation handle shaft hole (14) is respectively opened. The activation handle (6) is rotatably supported on the activation handle shaft hole (14) through an activation handle shaft (61). One end of the activation handle (6) abuts against the lower part of the needle assembly (5) above, while the other end abuts against the indicator inner shell (4). A pull rope (62) is also connected to the end of the other end of the activation handle (6), that is, the end far from the needle assembly (5), and a pull pellet (63) is fixed on the pull rope (62).

4. The parallel inflating device according to claim 1, characterized in that: On the trigger mounting seat (11), a trigger mounting seat cavity (111) with an upward opening and communicating with the receiving cavity of the inflation device main body (1) is formed. The trigger assembly (22), trigger spring (23), buckle (24) and water-sensitive paper sleeve (25) of the trigger (2) are disposed within the trigger mounting seat cavity (111). An external thread (112) is formed on the outer side wall of the trigger mounting seat (11), and an internal thread (211) for screwing and fixing with the external thread (112) is formed on the inner wall at the lower end of the trigger housing (21) of the trigger (2).

5. The parallel inflating device according to claim 1, wherein: The gas cylinder mounting seat (12) is formed with a gas cylinder mounting seat cavity (121) which is open upward and communicates with the accommodating cavity of the inflation device body (1); the inner wall of the gas cylinder mounting seat cavity (121) is threadedly connected to the bottle mouth of the gas cylinder (3); and a sealing gasket (1211) is provided between the bottom of the gas cylinder mounting seat cavity (121) and the gas cylinder (3).

6. The parallel inflating device according to claim 1, characterized in that: The indicator inner shell (4) is inserted into the accommodating cavity of the inflatable device body (1) from bottom to top through a set of indicator inner shell buckles (43). A clamping groove (16) for cooperating with the indicator inner shell buckle (43) is formed on the inner wall of the accommodating cavity of the inflatable device body (1). The inflatable device body (1) is provided with an inflatable device body indicating window (15) at a position corresponding to the indicator inner shell (4). A booster spring is provided between the upper portion of the indicator inner shell (4) and the inflatable device body (1). (41), a different color indicating area (42) is formed at the lower end of one side of the indicator inner shell (4) at a position corresponding to the indicating window (15) of the main body of the inflatable device. When the inflatable device is in an unused state, the different color indicating area (42) is located at the position where the indicating window (15) of the main body of the inflatable device is located. When the inflatable device is in a used state, the different color indicating area (42) is located below the indicating window (15) of the main body of the inflatable device and displays the color of the main body of the indicator inner shell (4), and the two colors are different.

7. The parallel inflating device according to claim 1, wherein: The trigger housing (21) is provided with a trigger assembly clamping hole (212) in the middle of the upper end, the trigger assembly (22) is provided with a connecting rod (221) in the middle of the upper end surface, the connecting rod (221) is provided with a connecting clamping foot (224) at the upper end, the connecting rod (221) is provided with a groove (223) at the end close to the connecting clamping foot (224), the connecting clamping foot (224) is used for clamping connection with the trigger assembly clamping hole (212), the lower end surface of the trigger assembly (22) is provided with a downwardly extending excitation rod (222), the trigger spring (23) and the ring buckle (24) are sequentially sleeved on the trigger assembly (212) from top to bottom. On the connecting rod (221), the upper end of the trigger spring (23) abuts against the ring buckle (24), and the lower end abuts against the trigger assembly (22); a circle of ring buckle clamping feet (241) is formed above the ring buckle (24) and around the connecting rod (221); the ring buckle clamping feet (241) respectively protrude a boss (242) toward the groove (223); the ring buckle (24) is used to hold the connecting rod (221) tightly by tightening the ring buckle clamping feet (241) so that the boss (242) is clamped into the groove (223); the water-sensitive paper sleeve (25) is sleeved on the outside of the ring buckle clamping feet (241) and keeps the ring buckle clamping feet (241) in a tightened state.

8. The parallel inflating device according to claim 1, wherein: The water-sensitive paper sleeve (25) is formed by winding a single layer of water-sensitive paper, and the water-sensitive paper is a mesh-shaped paper fiber.

9. The parallel inflating device according to claim 1, wherein: The upper end of the lancet assembly (5) is formed with a thimble (51) that penetrates into the gas cylinder mounting seat (12) and abuts against the gas cylinder (3). A lancet assembly sealing ring (52) is sleeved on the outer wall of the lancet assembly (5), and the lancet assembly sealing ring (52) is used to prevent the gas in the gas cylinder (3) from overflowing around the lancet assembly (5).

10. The parallel inflating device according to claim 2, characterized in that: The cross-section of the mounting hole (13) is in the shape of the letter "D".

Images