Air column inflator

Abstract

The utility model discloses an air column inflator which comprises a machine shell, a discharging assembly is arranged on one side of the machine shell, a conveying assembly is arranged on the top wall of the machine shell, the rubber wheel output end of the conveying assembly is arranged on the outer side of the top wall of the machine shell, and the gear input end of the conveying assembly is arranged on the inner side of the top wall of the machine shell. A motor is arranged in the machine shell and is in transmission connection with the gear input end of the conveying assembly. An inflation pipe and a cutter assembly are arranged on the outer side of the top wall of the machine shell, a connecting hole is formed in the top wall of the machine shell, one end of the connecting hole is connected with one end of the inflation pipe, the other end of the inflation pipe extends towards the discharging assembly, and the inflation pipe is arranged in the middle of the rubber wheel output end of the conveying assembly. The cutter assembly is arranged on one side of the connecting hole. An air blower is further arranged in the machine shell and connected with the other end of the connecting hole. A gas source can be provided through the air blower.

Description

TECHNICAL FIELD

[0001] The utility model relates to air column inflation technical field especially relates to an air column inflator. BACKGROUND

[0002] Air column bag (also called air column film) is a new type of packaging material filled with natural air, which is widely used in product packaging, and can be used for directly wrapping products or filling the excess space in the packaging box to prevent the products from being damaged due to collision; before the air column bag is inflated to form a finished product, it is made into a folded or rolled shape for delivery, forming an air column bag roll, which needs to be unfolded and inflated during inflation.

[0003] In the prior art, the air column inflator generally needs to pull out and unfold the air column bag roll and align the air passage of the air column bag with the inflation pipe of the air column inflator for inflation operation. The defect of the prior art is that the existing air column inflator generally needs to be connected with an air compressor for providing gas source, thereby causing inconvenience in carrying or using. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an air column inflator to solve the technical problem that the existing air column inflator generally needs to be connected with an air compressor for providing gas source, thereby causing inconvenience in carrying or using.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the utility model provides an air column inflator, which comprises a shell, a feeding assembly is arranged on one side of the shell, a conveying assembly is arranged on the top wall of the shell, the rubber wheel output end of the conveying assembly is arranged outside the top wall of the shell, the gear input end of the conveying assembly is arranged inside the top wall of the shell, a motor is arranged in the shell, and the motor is in transmission connection with the gear input end of the conveying assembly; an inflation pipe and a cutter assembly are arranged outside the top wall of the shell, a connecting hole is arranged on the top wall of the shell, one end of the connecting hole is connected with one end of the inflation pipe, the other end of the inflation pipe extends towards the feeding assembly, the inflation pipe is arranged in the middle of the rubber wheel output end of the conveying assembly, and the cutter assembly is arranged beside the connecting hole; a blower is further arranged in the shell, and the blower is connected with the other end of the connecting hole.

[0006] Further, a gas source connector is arranged on the shell, a three-way pipe is arranged inside the top wall of the shell, the first pipe opening of the three-way pipe is connected with the other end of the connecting hole, the second pipe opening of the three-way pipe is connected with the blower, and the third pipe opening of the three-way pipe is connected with the gas source connector.

[0007] Further, the air blower is provided with a heat dissipation fan, the casing is further provided with an air outlet, an air inlet, and the heat dissipation fan is matched with the air outlet.

[0008] Further, the feeding assembly is arranged on the right side of the casing, the air source connector is arranged on the right side wall of the casing, the air outlet is arranged on the left side wall of the casing, and the air inlet is arranged on the rear side wall of the casing; the inside of the casing is further provided with a main board and a power supply, and the main board is electrically connected with the power supply, the motor, the air blower and the heat dissipation fan.

[0009] Further, the conveying assembly comprises a fixed bearing seat, a movable bearing seat and a connecting block, two guide shafts are connected between the fixed bearing seat and the connecting block, and the movable bearing seat is movably arranged on the two guide shafts; the fixed bearing seat is provided with a rotatable gear shaft, the movable bearing seat is provided with a rotatable gear shaft, the bottom end of the gear shaft is provided with an input gear, and the top end of the gear shaft is provided with an output rubber wheel; the input gears on the fixed bearing seat and the movable bearing seat are engaged to form a gear input end of the conveying assembly, and the output rubber wheels on the fixed bearing seat and the movable bearing seat are engaged to form a rubber wheel output end of the conveying assembly.

[0010] Further, the fixed bearing seat and the connecting block are fixed to the inner side of the top wall of the casing, and a spring is arranged between the connecting block and the movable bearing seat; the gear shaft on the fixed bearing seat passes through a rotating hole of the top wall of the casing, and the gear shaft on the movable bearing seat passes through an elliptical hole of the top wall of the casing.

[0011] Further, one end of the inflation pipe is a pipe opening, the other end of the inflation pipe is a closed end, and the pipe wall of the inflation pipe is provided with a plurality of inflation holes; one end of the inflation pipe is provided with two groups of the conveying assembly, the connecting hole and the cutter assembly are located between the two groups of the conveying assembly, and the other end of the inflation pipe is provided with one group of the conveying assembly; the motor is provided with a driving gear, a plurality of transition gears are rotatably arranged on the inner side of the top wall of the casing, the driving gear is in transmission cooperation with the input gear on the fixed bearing seat through the transition gears, and the input gears on the fixed bearing seats of the two groups of the conveying assembly are in transmission cooperation through the transition gears.

[0012] Further, the front and rear edges of the top wall of the casing are respectively provided with L-shaped convex covers, and the inflation pipe is provided with a sensing wheel, and the conveying assembly, the inflation pipe, the cutter assembly and the sensing wheel are arranged between the L-shaped convex covers on the two sides.

[0013] Further, the feeding assembly comprises a mounting bracket mounted on the right side wall of the casing, a vertically extending feeding shaft is arranged on the mounting bracket, a tray is arranged on the feeding shaft, a plug capable of moving up and down along the feeding shaft is arranged above the tray, two vertically extending guide rods are arranged between the tray and the inflation pipe, and an elastic member pressing portion is arranged above the tray and capable of approaching and moving away from the feeding shaft.

[0014] Further, the elastic member pressing portion comprises a first fixing shaft and a second fixing shaft extending vertically, the first fixing shaft, the second fixing shaft and the two guide rods are arranged on the right side edge outside the top wall of the casing, the top end of the first fixing shaft is rotationally connected with one end of a rotating rod, the other end of the rotating rod is rotationally provided with a pressing rubber wheel capable of approaching and moving away from the feeding shaft, the top end of the second fixing shaft is connected with one end of a tension spring, and the other end of the tension spring is connected with the middle part of the rotating rod.

[0015] In summary, the technical scheme of the utility model has the following beneficial effects: the utility model has a reasonable structure, (1) a feeding assembly is arranged beside the casing, a conveying assembly is arranged on the top wall of the casing, the rubber wheel output end of the conveying assembly is arranged outside the top wall of the casing, the gear input end of the conveying assembly is arranged inside the top wall of the casing, a motor is arranged in the casing, and the motor is in transmission connection with the gear input end of the conveying assembly; thus, the air column bag roll material can be placed on the feeding assembly, and the motor drives the gear input end and the rubber wheel output end of the conveying assembly in sequence. (2) an inflation pipe and a cutter assembly are arranged outside the top wall of the casing, the top wall of the casing is provided with a connecting hole, one end of the connecting hole is connected with one end of the inflation pipe, the other end of the inflation pipe extends towards the feeding assembly, the inflation pipe is arranged in the middle of the rubber wheel output end of the conveying assembly, and the cutter assembly is arranged beside the connecting hole; thus, under the drive of the rubber wheel output end, the air column bag roll material on the feeding assembly is pulled out and unfolded, and the air column bag moves from the other end of the inflation pipe to one end of the inflation pipe, in this process, the air passage of the air column bag is aligned with the inflation pipe of the air column inflator for inflation operation, and when the air column bag moves to the cutter assembly, the cutter assembly cuts the air passage of the air column bag, so that the air column bag can pass outwards through the inflation pipe of the air column inflator. (3) a blower is further arranged in the casing and connected with the other end of the connecting hole; thus, the blower can provide a gas source for the inflation pipe through the connecting hole. From the above analysis, the utility model does not need to externally connect an air compressor during inflation, but can provide a gas source through the blower, thereby realizing convenient carrying or use. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a rear view of the utility model;

[0017] Figure 2 is a front view of the utility model;

[0018] Figure 3 is a rear view of the utility model when the rear wall of the shell is removed;

[0019] Figure 4 is a view of the utility model when the rear wall and the bottom wall of the shell are removed;

[0020] Figure 5 is a bottom view of the top wall of the shell of the utility model;

[0021] Figure 6 is a view of the utility model when the shell, the material discharging assembly and the elastic member pressing part are removed;

[0022] Figure 7 is a view of the conveying assembly of the utility model;

[0023] Explanation of reference numerals: shell (1), material discharging assembly (2), conveying assembly (3), motor (4), inflation pipe (5), cutter assembly (6), air blower (7), air source connector (8), tee pipe (9), heat dissipation fan (10), main board (11), power supply (12), transition gear (13), L-shaped convex cover (14), elastic member pressing part (15), induction wheel (16);

[0024] connecting hole (101), air outlet (102), air inlet hole (103), rotating hole (104), oval hole (105); mounting bracket (201), material discharging shaft (202), tray (203), plug (204), material guiding rod (205); fixed bearing seat (301), movable bearing seat (302), connecting block (303), guide shaft (304), gear shaft (305), input gear (306), output rubber wheel (307); driving gear (401), inflation hole (501); first fixed shaft (1501), second fixed shaft (1502), rotating rod (1503), pressing rubber wheel (1504), tension spring (1505). DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model, but do not constitute a limitation on the protection scope of the utility model.

[0026] In the utility model, in order to describe more clearly, make the following description: the observer faces the attached Figure 1The left side of the observer is set as left, the right side of the observer is set as right, the front of the observer is set as front, the back of the observer is set as back, the upper side of the observer is set as upper, and the lower side of the observer is set as lower. It should be pointed out that the terms "front end", "rear end", "left side", "right side", "middle", "upper side" and "lower side" in the text indicate the orientation or positional relationship based on the orientation or positional relationship set in the drawings, and are only for the convenience of clearly describing the utility model, and do not indicate or imply that the structures or parts must have a specific orientation or be constructed in a specific orientation, so it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and "fourth" are only used for the purpose of clarity or simplification of description, and cannot be understood as indicating or implying relative importance or quantity.

[0027] Referring to Figures 1 to 7The embodiment provides a gas column inflator, which comprises a shell 1, a feeding assembly 2 arranged on one side of the shell 1, a conveying assembly 3 arranged on the top wall of the shell 1, a rubber wheel output end of the conveying assembly 3 arranged outside the top wall of the shell 1, a gear input end of the conveying assembly 3 arranged inside the top wall of the shell 1, a motor 4 arranged in the shell 1 and in transmission connection with the gear input end of the conveying assembly 3, an inflating pipe 5 and a cutter assembly 6 arranged outside the top wall of the shell 1, a connecting hole 101 arranged on the top wall of the shell 1 and in connection with one end of the inflating pipe 5, the other end of the inflating pipe 5 extending towards the feeding assembly 2, the inflating pipe 5 arranged in the middle of the rubber wheel output end of the conveying assembly 3, the cutter assembly 6 arranged on one side of the connecting hole 101, and a blower 7 arranged in the shell 1 and in connection with the other end of the connecting hole 101. (1) The feeding assembly is arranged on one side of the shell, the conveying assembly is arranged on the top wall of the shell, the rubber wheel output end of the conveying assembly is arranged outside the top wall of the shell, the gear input end of the conveying assembly is arranged inside the top wall of the shell, the motor is arranged in the shell and in transmission connection with the gear input end of the conveying assembly, so that the gas column bag roll material can be placed on the feeding assembly, and the motor drives the gear input end and the rubber wheel output end of the conveying assembly in sequence. (2) The inflating pipe and the cutter assembly are arranged outside the top wall of the shell, the connecting hole is arranged on the top wall of the shell and in connection with one end of the inflating pipe, the other end of the inflating pipe extends towards the feeding assembly, the inflating pipe is arranged in the middle of the rubber wheel output end of the conveying assembly, and the cutter assembly is arranged on one side of the connecting hole, so that the gas column bag roll material on the feeding assembly is pulled out and unfolded under the drive of the rubber wheel output end, the gas column bag moves from the other end of the inflating pipe to one end of the inflating pipe, in the process, the gas column bag is inflated through the inflating pipe of the gas column inflator, and when the gas column bag moves to the cutter assembly, the cutter assembly cuts the gas column bag, so that the gas column bag passes out of the inflating pipe of the gas column inflator. (3) The blower is arranged in the shell and in connection with the other end of the connecting hole, so that the blower can provide gas source for the inflating pipe through the connecting hole. According to the above analysis, the gas column inflator does not need to be connected with an air compressor during the inflating process, but can provide gas source through the blower, so that the gas column inflator is convenient to carry or use.

[0028] Specifically, the air source connector 8 is arranged on the casing 1, the tee pipe 9 is arranged on the inner side of the top wall of the casing 1, the first pipe opening of the tee pipe 9 is connected with the other end of the connecting hole 101, the second pipe opening of the tee pipe 9 is connected with the air blower 7, and the third pipe opening of the tee pipe 9 is connected with the air source connector 8. Action: The tee pipe is arranged, so that the air source connector 8, the third pipe opening of the tee pipe 9, the first pipe opening of the tee pipe 9, the connecting hole 101 and the inflation pipe form a first independent air path, and the air blower 7, the second pipe opening of the tee pipe 9, the first pipe opening of the tee pipe 9, the connecting hole 101 and the inflation pipe form a second independent air path. In this way, when the first independent air path needs to work, the air source connector 8 can be externally connected with the air compressor to provide the air source, and when the second independent air path needs to work, the air blower 7 can be started to work to provide the air source, so that the user can flexibly and diversely select.

[0029] Specifically, the heat dissipation fan 10 is arranged beside the air blower 7, the air outlet 102 and the air inlet hole 103 are further arranged on the casing 1, the heat dissipation fan 10 cooperates with the air outlet 102, and the heat dissipation fan 10 cooperates with the air blower 7 for heat dissipation. Action: The heat dissipation fan 10 cooperates with the air blower 7 for heat dissipation, so that the air blower 7 can be cooled, the hot air generated by the heat dissipation fan 10 can be discharged through the air outlet 102, and the air inlet hole 103 can continuously supply the airflow required by the heat dissipation fan 10.

[0030] Specifically, the discharging assembly 2 is arranged on the right side of the casing 1, the air source connector 8 is arranged on the right side wall of the casing 1, the air outlet 102 is arranged on the left side wall of the casing 1, and the air inlet hole 103 is arranged on the rear side wall of the casing 1; the main board 11 and the power supply 12 are further arranged in the casing 1, and the main board 11 is electrically connected with the power supply 12, the motor 4, the air blower 7 and the heat dissipation fan 10. Action: The motor 4, the air blower 7 and the heat dissipation fan 10 can work in order through the coordinated control of the main board.

[0031] Specifically, the conveying assembly 3 comprises a fixed bearing seat 301, a movable bearing seat 302 and a connecting block 303, two guide shafts 304 are connected between the fixed bearing seat 301 and the connecting block 303, and the movable bearing seat 302 is movably arranged on the two guide shafts 304; a rotatable gear shaft 305 is arranged on the fixed bearing seat 301, and a rotatable gear shaft 305 is arranged on the movable bearing seat 302; an input gear 306 is arranged at the bottom end of the gear shaft 305, and an output rubber wheel 307 is arranged at the top end of the gear shaft 305; the input gears 306 on the fixed bearing seat 301 and the movable bearing seat 302 are engaged to form a gear input end of the conveying assembly 3, and the output rubber wheels 307 on the fixed bearing seat 301 and the movable bearing seat 302 are engaged to form a rubber wheel output end of the conveying assembly 3. Action: The two input gears 306 are engaged to realize synchronous rotation of the two gear shafts 305 and the two output rubber wheels 307, thereby sequentially driving the air column bag to move from the other end of the inflation pipe to one end of the inflation pipe; and the movable bearing seat 302 can move left and right on the two guide shafts 304, thereby adjusting the distance between the fixed bearing seat 301 and the movable bearing seat 302 as needed, and further adjusting the distance between the two output rubber wheels 307.

[0032] Specifically, the fixed bearing seat 301 and the connecting block 303 are fixed inside the top wall of the machine shell 1, and a spring is arranged between the connecting block 303 and the movable bearing seat 302; the gear shaft 305 on the fixed bearing seat 301 passes through the rotating hole 104 in the top wall of the machine shell 1, and the gear shaft 305 on the movable bearing seat 302 passes through the oval hole 105 in the top wall of the machine shell 1. Action: The arrangement of the spring enables the output rubber wheel 307 on the movable bearing seat 302 to cooperate with the output rubber wheel 307 on the fixed bearing seat 301 under the action of the elastic force; and the oval hole 105 facilitates flexible movement of the gear shaft 305 on the movable bearing seat 302.

[0033] Specifically, one end of the inflation pipe 5 is a pipe opening, the other end of the inflation pipe 5 is a closed end, and the pipe wall of the inflation pipe 5 is provided with a plurality of inflation holes 501; one end of the inflation pipe 5 is provided with two groups of conveying assemblies 3, the connecting hole 101 and the cutter assembly 6 are located between the two groups of conveying assemblies 3, and the other end of the inflation pipe 5 is provided with one group of conveying assemblies 3; the motor 4 is provided with a driving gear 401, a plurality of transition gears 13 are rotatably arranged inside the top wall of the machine shell 1, the driving gear 401 is in transmission cooperation with the input gears 306 on the fixed bearing seats 301 through the transition gears 13, and the input gears 306 on the fixed bearing seats 301 of the two groups of conveying assemblies 3 are in transmission cooperation through the transition gears 13. Action: The plurality of inflation holes 501 can be inflated with the air duct of the air column bag, and the plurality of groups of conveying assemblies 3 can better move the air column bag; the motor 4 drives the transition gears 13, the input gears 306 on the fixed bearing seats 301 and the input gears 306 on the movable bearing seats 302 in sequence through the driving gear 401, thereby realizing power transmission.

[0034] Specifically, the front and rear side edges of the top wall outside of the casing 1 are respectively provided with L-shaped covers 14, and one side of the inflation pipe 5 is provided with an induction wheel 16, and the conveying assembly 3, the inflation pipe 5, the cutter assembly 6 and the induction wheel 16 are arranged between the two L-shaped covers 14. Function: the L-shaped cover 14 plays a protective role, and the induction wheel 16 can sense the inflation state of the air column bag.

[0035] Specifically, the feeding assembly 2 comprises a mounting bracket 201 mounted to the right side wall of the casing 1, and the mounting bracket 201 is provided with a vertically extending feeding shaft 202, and the feeding shaft 202 is provided with a tray 203, and the upper portion of the tray 203 is provided with a plug 204 which can move up and down along the feeding shaft 202; two vertically extending material guiding rods 205 are arranged between the tray 203 and the inflation pipe 5, and the upper portion of the tray 203 is provided with a spring pressing portion 15 which can move close to and away from the feeding shaft 202. Function: the air column bag roll is passed through the feeding shaft 202 and placed on the tray 203, and then the plug 204 is used to press down the air column bag roll, and the air column bag roll is pulled out and unfolded and passes through the material guiding rods 205, and the conveying assembly 3 drives the movement of the air column bag, and the spring pressing portion 15 can press the air column bag roll to prevent the air column bag roll from loosening.

[0036] Specifically, the spring pressing portion 15 comprises a first fixed shaft 1501 and a second fixed shaft 1502 which are vertically extended, and the first fixed shaft 1501, the second fixed shaft 1502 and the two material guiding rods 205 are arranged at the right side edge of the top wall outside of the casing 1; the top end of the first fixed shaft 1501 is rotationally connected with one end of a rotating rod 1503, the other end of the rotating rod 1503 is rotationally provided with a pressing rubber wheel 1504 which can move close to and away from the feeding shaft 202, the top end of the second fixed shaft 1502 is connected with one end of a tension spring 1505, and the other end of the tension spring 1505 is connected with the middle portion of the rotating rod 1503. Function: when it is needed to press the air column bag roll, the elastic force of the tension spring 1505 drives the rotating rod 1503 to press the air column bag roll through the pressing rubber wheel 1504; and when it is not needed to press the air column bag roll, the user manually pulls the rotating rod 1503 to move outward, so as to overcome the elastic force of the tension spring 1505, and the pressing rubber wheel 1504 no longer presses the air column bag roll.

[0037] The above is the preferred embodiment of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements are also considered to be within the protection scope of the present application.

Claims

1. A gas column inflator comprising a housing (1), characterised in that: The machine shell (1) is provided with a feeding assembly (2) on one side, the top wall of the machine shell (1) is provided with a conveying assembly (3), the rubber wheel output end of the conveying assembly (3) is arranged outside the top wall of the machine shell (1), the gear input end of the conveying assembly (3) is arranged inside the top wall of the machine shell (1), the inside of the machine shell (1) is provided with a motor (4), the motor (4) is in transmission connection with the gear input end of the conveying assembly (3); the top wall outside of the machine shell (1) is provided with an inflation pipe (5) and a cutter assembly (6), the top wall of the machine shell (1) is provided with a connecting hole (101), one end of the connecting hole (101) is connected with one end of the inflation pipe (5), the other end of the inflation pipe (5) extends towards the feeding assembly (2), the inflation pipe (5) is arranged in the middle of the rubber wheel output end of the conveying assembly (3), the cutter assembly (6) is arranged beside the connecting hole (101); the inside of the machine shell (1) is further provided with a blower (7), the blower (7) is connected with the other end of the connecting hole (101).

2. A gas column inflator as defined in claim 1, wherein: The machine shell (1) is provided with an air source connector (8), the top wall inside of the machine shell (1) is provided with a three-way pipe (9), the first pipe opening of the three-way pipe (9) is connected with the other end of the connecting hole (101), the second pipe opening of the three-way pipe (9) is connected with the blower (7), and the third pipe opening of the three-way pipe (9) is connected with the air source connector (8).

3. A gas column inflator as defined in claim 2, wherein: A cooling fan (10) is arranged beside the blower (7), the machine shell (1) is further provided with an air outlet (102) and an air inlet hole (103), the cooling fan (10) cooperates with the air outlet (102), and the cooling fan (10) cooperates with the blower (7) for heat dissipation.

4. A gas column inflator as defined in claim 3, wherein: The feeding assembly (2) is arranged on the right side of the machine shell (1), the air source connector (8) is arranged on the right side wall of the machine shell (1), the air outlet (102) is arranged on the left side wall of the machine shell (1), and the air inlet hole (103) is arranged on the rear side wall of the machine shell (1); the inside of the machine shell (1) is further provided with a main board (11) and a power supply (12), and the main board (11) is electrically connected with the power supply (12), the motor (4), the blower (7) and the cooling fan (10).

5. A gas column inflator according to any one of claims 1 to 4, wherein: The conveying assembly (3) comprises a fixed bearing seat (301), a movable bearing seat (302) and a connecting block (303), two guide shafts (304) are connected between the fixed bearing seat (301) and the connecting block (303), and the movable bearing seat (302) is movably arranged on the two guide shafts (304); a rotatable gear shaft (305) is arranged on the fixed bearing seat (301) and the movable bearing seat (302), the bottom end of the gear shaft (305) is provided with an input gear (306), and the top end of the gear shaft (305) is provided with an output rubber wheel (307); the input gears (306) on the fixed bearing seat (301) and the movable bearing seat (302) are engaged to form a gear input end of the conveying assembly (3), and the output rubber wheels (307) on the fixed bearing seat (301) and the movable bearing seat (302) are engaged to form a rubber wheel output end of the conveying assembly (3).

6. A gas column inflator as defined in claim 5, wherein: The fixed bearing seat (301) and the connecting block (303) are fixed inside the top wall of the shell (1), and a spring is arranged between the connecting block (303) and the movable bearing seat (302); the gear shaft (305) on the fixed bearing seat (301) passes through a rotating hole (104) in the top wall of the shell (1), and the gear shaft (305) on the movable bearing seat (302) passes through an oval hole (105) in the top wall of the shell (1).

7. A gas column inflator as defined in claim 5, wherein: One end of the inflation pipe (5) is a pipe opening, the other end of the inflation pipe (5) is a closed end, and the pipe wall of the inflation pipe (5) is provided with a plurality of inflation holes (501); one end of the inflation pipe (5) is provided with two groups of the conveying assembly (3), the connecting hole (101) and the cutter assembly (6) are located between the two groups of the conveying assembly (3), and the other end of the inflation pipe (5) is provided with one group of the conveying assembly (3); a driving gear (401) is arranged on the motor (4), a plurality of transition gears (13) are rotatably arranged inside the top wall of the shell (1), the driving gear (401) is in transmission cooperation with the input gear (306) on the fixed bearing seat (301) through the transition gears (13), and the input gears (306) on the fixed bearing seats (301) of the two groups of the conveying assembly (3) are in transmission cooperation through the transition gears (13).

8. A gas column inflator as defined in claim 5, wherein: L-shaped convex covers (14) are arranged on the front and rear edges of the top wall of the shell (1), respectively, a sensing wheel (16) is arranged beside the inflation pipe (5), and the conveying assembly (3), the inflation pipe (5), the cutter assembly (6) and the sensing wheel (16) are arranged between the L-shaped convex covers (14) on both sides.

9. A gas column inflator according to any one of claims 1 to 4, wherein: The feeding assembly (2) comprises a mounting bracket (201) mounted on the right side wall of the casing (1), a vertically extending feeding shaft (202) is arranged on the mounting bracket (201), a tray (203) is arranged on the feeding shaft (202), a plug (204) capable of moving up and down along the feeding shaft (202) is arranged above the tray (203); two vertically extending material guide rods (205) are arranged between the tray (203) and the inflation pipe (5), and an elastic member pressing portion (15) is arranged above the tray (203) and can be close to and away from the feeding shaft (202).

10. A gas column inflator as defined in claim 9, wherein: The elastic member pressing portion (15) comprises a vertically extending first fixing shaft (1501) and a second fixing shaft (1502), the first fixing shaft (1501) and the second fixing shaft (1502) and the two material guide rods (205) are arranged on the right side edge outside the top wall of the casing (1); the top end of the first fixing shaft (1501) is rotationally connected with one end of a rotating rod (1503), the other end of the rotating rod (1503) is rotationally provided with a pressing rubber wheel (1504), the pressing rubber wheel (1504) can be close to and away from the feeding shaft (202), the top end of the second fixing shaft (1502) is connected with one end of a tension spring (1505), and the other end of the tension spring (1505) is connected with the middle part of the rotating rod (1503).

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