A supercharger device

Abstract

The application relates to an air inflation supercharging device, and relates to the technical field of air inflation devices. The air inflation supercharging device comprises a handle, a tubular structure with a bottom end closed, an air inlet hole arranged at the bottom end of the outer wall of the handle in a circumferential direction, a motor arranged in the handle and fixedly connected with the handle, a fan blade arranged in the handle and coaxially fixedly connected with the output shaft of the motor, used for discharging the gas entering through the air inlet hole from the top end of the handle, an outer cylinder fixedly connected with the top end of the handle and communicated with the handle, an inner cylinder inserted into the outer cylinder, the end of the inner cylinder fixedly connected with the outer cylinder and in a closed state, and the handle connected with the end of the outer cylinder, and an air inflation pipe fixedly connected with the start end of the outer cylinder and communicated with the outer cylinder. The application has the effects of high air inflation efficiency and good use stability.

Description

An air-pressurizing device Technical Field

[0001] This application relates to the technical field of inflation devices, and in particular to an inflation booster device. Background Technology

[0002] An inflation booster device is a device that fills a container with gas; existing inflation boosters include various types, including blower-type inflation devices and booster pump-type inflation devices.

[0003] A reference to existing Chinese patent CN212744244U is available, which discloses a booster pump, including a cylinder body with a partition and a piston connecting rod disposed within the cylinder body. The partition divides the cylinder body into two chambers. The piston connecting rod includes a connecting rod and a first piston and a second piston connected to both ends of the connecting rod. The connecting rod passes through the partition and can slide relative to the partition, so that the first piston and the second piston are located in the chambers on both sides of the partition. An elastic sealing diaphragm is connected between one side of the second piston and the partition, and the elastic sealing diaphragm surrounds the connecting rod, forming a cavity between the elastic sealing diaphragm and the connecting rod. The partition has an exhaust port, which communicates the cavity with the outside of the cylinder body. A booster chamber is formed between the other side of the second piston and the cylinder body. The outer end cap of the cylinder body has an air inlet communicating with the booster chamber. After prolonged use, the partition is prone to wear, resulting in a decrease in inflation efficiency.

[0004] To address the aforementioned issues, reference can be made to Chinese Patent CN201730865U, which discloses a blower comprising a base, a housing mounted on the base, a motor connected to the outside of the housing, an impeller connected to the motor inside the housing, an air outlet at the end of the housing, a connecting plate mounted on the air outlet, a support plate fixed to the air outlet on the rear side of the connecting plate, and a positioning piece that can be bent outwards to fix the connecting plate at the end of the air outlet. Due to this structure, during assembly, the connecting plate is placed between the support plate and the positioning piece, and a mold is used to bend the positioning piece outwards to clamp the connecting plate, which improves processing efficiency and reduces production costs; simultaneously, it prevents wear and tear due to prolonged use.

[0005] Regarding the aforementioned technologies, during use, the motor will heat up and reach a high temperature over a long period of time, which has the drawback of affecting the stability of the inflation booster device. Summary of the Invention

[0006] To address the shortcomings of poor heat dissipation in air-pressurizing devices, which leads to poor operational stability, this application provides an air-pressurizing device.

[0007] This application provides an inflation booster device, which adopts the following technical solution: It includes: a handle, which is a tubular structure closed at the bottom, with an air inlet hole at the bottom of the outer wall around the handle; a motor, located inside the handle and fixedly connected to the handle; a fan, located inside the handle, and coaxially fixedly connected to the motor output shaft, used to discharge the gas entering through the air inlet hole from the top of the handle; an outer cylinder, fixedly connected to the top of the handle and communicating with the handle; an inner cylinder, inserted into the outer cylinder, with its end fixedly connected to the outer cylinder and in a closed state, and the handle connected to the end of the outer cylinder; and an inflation pipe, fixedly connected to the beginning of the outer cylinder and communicating with the outer cylinder.

[0008] By adopting the above technical solution, when in use, the item to be inflated is connected to the inflation tube. At this time, the motor is started, and the output shaft of the motor drives the fan to rotate. At this time, the outside air enters into the handle through the air inlet and is blown out through the gap between the inner and outer cylinders, thereby inflating the item. During the inflation process, all the flowing gas passes through the motor, thus achieving heat dissipation for the motor while inflating. The gap between the inner and outer cylinders is small, which facilitates the increase of gas flow rate. The higher the flow rate, the lower the pressure. At this time, the outside atmospheric pressure gas flows from the inner cylinder to the item to be inflated, which also improves the inflation efficiency.

[0009] Preferably, a reinforcing assembly is provided inside the inner cylinder. The reinforcing assembly includes: a top cover, which is located inside the inner cylinder and fixedly connected to it, forming a pressurization chamber with the inner cylinder; a through hole is provided on the upper surface of the top cover; a reinforcing fan, located between the top cover and the inner cylinder, and used to discharge the gas entering the pressurization chamber through the through hole from the beginning of the inner cylinder; a rotating shaft, which passes through the inner cylinder and is rotatably connected to it, and is coaxial with the output shaft of the motor; a connecting member is provided between the rotating shaft and the output shaft of the motor for connecting them.

[0010] By adopting the above technical solution, when using a motor and a fan to inflate an item, a connector is used to connect the rotating shaft to the motor rotor. At this time, the motor rotor drives the reinforcing fan to rotate, and the outside gas flows into the pressurization chamber through the through hole. This increases the gas flow rate. At the same time, under the action of the reinforcing component, the speed at which the gas flows out of the inflation tube is increased, which causes the pressure at the outlet to decrease, thereby increasing the flow rate of gas from the inner cylinder to the item to be inflated.

[0011] Preferably, the circumferential sidewall of the rotating shaft has a receiving groove, and the connecting component includes: a sleeve, which is slidably sleeved on the circumferential outer wall of the rotating shaft and slides along the length of the rotating shaft; the remaining end of the sleeve is sleeved on the circumferential outer wall of the motor's output shaft and slides along the length of the rotating shaft; a retaining groove is formed on the circumferential inner wall of the sleeve; a retaining ball, which is slidably inserted into the receiving groove and slides along the opening direction of the receiving groove; the retaining ball is engaged in the retaining groove; a retaining spring, located in the receiving groove, and the retaining spring is fixedly connected to the retaining ball and the rotating shaft; a support ring, which is fixedly connected to the circumferential outer wall of the motor's output shaft and is used to support the sleeve; an adjustment component is provided between the sleeve and the handle for adjusting whether the rotating shaft is connected to the output shaft of the motor.

[0012] By adopting the above technical solution, when the connecting assembly is used to connect the rotating shaft to the output shaft of the motor, the adjusting assembly is used to move the sleeve to the side closer to the motor. At this time, the sleeve is fitted on the outer wall of the motor output shaft, thereby realizing that the output shaft of the motor drives the reinforced fan to rotate, and the problem of multiple motors generating heat will not occur; at the same time, the motor can be used for multiple purposes.

[0013] Preferably, the handle has an adjustment hole on its outer circumferential wall, the adjustment hole being oriented in the same direction as the handle's length; the handle has a positioning groove on its inner circumferential wall; the adjustment assembly includes: an adjustment rod, one end of which passes through the adjustment hole and slides along the length of the adjustment hole; a insertion groove is provided on the end face inside the handle; a positioning plate, located inside the handle, and fitted onto the outer circumferential wall of the adjustment rod and fixedly connected to the adjustment rod; the positioning plate is used to close the adjustment hole; a positioning block, fixedly connected to the side wall of the positioning plate near the adjustment rod, and inserted into the positioning groove; a push plate, fixedly connected to the remaining end face of the adjustment rod; an adjustment spring, fitted onto the outer circumferential wall of the adjustment rod, and the adjustment spring being located between the push plate and the handle; and an insertion block, fixedly connected to the outer circumferential wall of the sleeve, for insertion into the insertion groove.

[0014] By adopting the above technical solution, when adjusting the relative position between the sleeve and the motor using the adjusting component, it is only necessary to push the push plate. At this time, the adjusting rod moves to the side closer to the sleeve. When the plug block is inserted into the plug slot, the height of the adjusting rod is adjusted along the length of the adjusting hole, thereby adjusting the position of the sleeve and the motor. At the same time, the positioning plate not only fixes the relative position between the adjusting rod and the handle, but also seals the adjusting hole, thereby ensuring that the gas entering the handle through the air inlet flows out through the gap between the outer and inner cylinders to ensure the gas flow rate.

[0015] Preferably, a portable power supply is fixedly connected to the bottom of the handle, and the portable power supply is connected to the motor to provide power to the motor.

[0016] By adopting the above technical solution, the mobile power bank setup expands the application scenarios of the inflation and pressurization device, eliminating the limitation of power supply.

[0017] Preferably, the insertion block gradually becomes pointed from the end near the sleeve to the end away from the sleeve.

[0018] By adopting the above technical solution, the pointed plug can be easily inserted into the plug slot, achieving the effect of convenient use.

[0019] Preferably, the outer circumferential wall of the inflation tube is fixedly connected with connecting nails.

[0020] By adopting the above technical solution, the connecting nails facilitate the connection of interfaces of different shapes and make it easier to fix the inflation tube to the item to be inflated, thus achieving the effect of convenient use.

[0021] Preferably, a clamping plate is fixed to the end of the connecting nail away from the inflation tube.

[0022] By adopting the above technical solution, the clamping plate, connecting nail, and inflation tube are used together to clamp interfaces that cannot be snapped together, thus achieving the effect of easy use.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Connect the item to be inflated to the inflation tube. Start the motor, and the motor's output shaft drives the fan blades to rotate. At this time, outside air enters the handle through the air inlet and is blown out through the gap between the inner and outer cylinders, thus inflating the item. During the inflation process, all the air flowing through the motor passes through the motor, which not only inflates the item but also dissipates heat from the motor. The small gap between the inner and outer cylinders facilitates a higher airflow rate. The higher the flow rate, the lower the pressure. At this time, the outside atmospheric pressure air flows from the inner cylinder to the item to be inflated, which also improves the inflation efficiency.

[0025] 2. When using a motor and blade fan to inflate an item, connect the shaft to the motor rotor using a connector. The motor rotor drives the reinforcing fan to rotate, and external gas flows from the through hole into the pressurization chamber, increasing the gas flow rate. At the same time, the reinforcing component increases the speed at which gas flows out of the inflation tube, resulting in a decrease in pressure at the outlet, which in turn increases the flow rate of gas from the inner cylinder into the item to be inflated.

[0026] 3. The positioning plate not only fixes the relative position between the adjusting rod and the handle, but also seals the adjusting hole, thereby ensuring that the gas entering the handle through the air inlet flows out through the gap between the outer and inner cylinders to ensure the gas flow rate. Attached Figure Description

[0027] Figure 1 is a schematic diagram of the overall structure of an embodiment of this application;

[0028] Figure 2 is a cross-sectional view showing the inner cylinder;

[0029] Figure 3 is a cross-sectional view showing the motor;

[0030] Figure 4 is a magnified view of part A in Figure 3.

[0031] In the diagram, 1. Handle; 11. Air inlet; 12. Adjustment hole; 13. Positioning slot; 14. Power supply; 2. Motor; 3. Fan blade; 4. Outer cylinder; 5. Inner cylinder; 6. Inflation pipe; 7. Reinforcing assembly; 71. Top cover; 711. Through hole; 712. Pressurization chamber; 72. Reinforcing fan; 73. Shaft; 731. Receiving slot; 8. Connecting piece; 81. Sleeve; 811. Slot; 82. Ball retainer; 83. Snap ring; 84. Support ring; 9. Adjustment assembly; 91. Adjustment rod; 911. Insertion slot; 92. Positioning plate; 93. Positioning block; 94. Push plate; 95. Adjustment spring; 96. Insertion block; 10. Connecting pin; 101. Clamping plate. Detailed Implementation

[0032] The present application will be further described in detail below with reference to Figures 1-4.

[0033] This application discloses an inflation booster device.

[0034] Referring to Figures 1, 2, and 3, the inflation booster device includes a handle 1, a motor 2, a fan blade 3, an outer cylinder 4, an inner cylinder 5, and an inflation pipe 6. The handle 1 is a tubular structure with a closed bottom. An air inlet 11 is provided on the outer circumferential wall of the bottom of the handle 1, and the air inlet 11 penetrates the handle 1. The motor 2 is located inside the handle 1 and is fixedly connected to the handle 1. The outer circumferential wall of the motor 2 does not abut against the inner wall of the handle 1. Specifically, the motor 2 and the handle 1 can be connected by a connecting rod. A mobile power supply 14 is fixedly connected to the end of the handle 1. The mobile power supply 14 is used to supply power to the motor 2. A switch is provided between the mobile power supply 14 and the battery to control whether the motor 2 is started. The fan blade 3 is located inside the handle 1, and the fan blade 3 is coaxially fixedly connected to the output shaft of the motor 2. The fan blade 3 is used to discharge the gas that enters the handle 1 through the air inlet 11 from the top of the handle 1. Specifically, the output shaft of the motor 2 penetrates the fan blade 3, and the upper end surface of the output shaft of the motor 2 is higher than the upper end surface of the fan blade 3.

[0035] Referring to Figures 1 and 2, the outer cylinder 4 is fixedly connected to the top of the handle 1 and communicates with the handle 1; the inner cylinder 5 is inserted into the outer cylinder 4, and the end of the inner cylinder 5 is fixedly connected to the outer cylinder 4 and is in a sealed state, specifically the end of the inner cylinder 5 is fixedly connected to the end of the outer cylinder 4; a cavity is formed between the inner wall of the outer cylinder 4 and the outer wall of the inner cylinder 5; the handle 1 is connected to the end of the outer cylinder 4; the inflation tube 6 is fixedly connected to the beginning of the outer cylinder 4 and is connected to the outer cylinder 4.

[0036] When inflating an item, the switch is turned on. The power bank 14 then supplies power to the motor 2. The output shaft of the motor 2 drives the fan blades 3 to rotate. The fan blades 3 then blow the air flowing from the air inlet 11 into the handle 1 through the gap between the inner cylinder 5 and the outer cylinder 4. During use, outside air flows through the motor 2, thus carrying away the heat generated by the motor 2 and improving the stability of the inflation device. Simultaneously, the power bank 14 allows operators to inflate items in different scenarios without being limited by external power sources. Furthermore, the airflow generated by the rotating fan blades 3 inflates the item; due to the high gas velocity, the pressure decreases at the high velocity points, causing outside air to flow from the inner cylinder 5 to the item being inflated, thereby improving inflation efficiency.

[0037] Referring to Figures 2 and 3, an enhancement component 7 for increasing gas flow rate and velocity is provided inside the inner cylinder 5. The enhancement component 7 includes a top cover 71, a reinforcing fan 72, and a rotating shaft 73. The top cover 71 is located inside the inner cylinder 5 and is fixedly connected to the inner cylinder 5, forming a pressurization chamber 712 with the inner cylinder 5. A through hole 711 is provided on the upper surface of the top cover 71. The reinforcing fan 72 is located between the top cover 71 and the inner cylinder 5, and the reinforcing fan 72 is used to discharge the gas entering the pressurization chamber 712 through the through hole 711 from the beginning of the inner cylinder 5. Specifically, the reinforcing fan 72 is coaxial with the through hole 711. The rotating shaft 73 passes through the inner cylinder 5 and is rotatably connected to the inner cylinder 5, and the rotating shaft 73 is coaxial with the output shaft of the motor 2. A connecting piece 8 is provided between the rotating shaft 73 and the output shaft of the motor 2 to connect them, so that the output shaft of the motor 2 can drive the reinforcing fan 72 to rotate.

[0038] Referring to Figures 3 and 4, the connecting member 8 includes a sleeve 81, a retaining ball 82, a retaining spring 83, and a retaining ring 84; the sleeve 81 is sleeved on the circumferential side wall of the rotating shaft 73 and slides along the length of the rotating shaft 73; the remaining end of the sleeve 81 is slidably sleeved on the circumferential side wall of the output shaft of the motor 2 and slides along the length of the rotating shaft 73; specifically, multiple vertical teeth can be fixed at equal intervals on the circumferential inner wall of the sleeve 81, and the output shaft of the motor 2 has multiple slots for the vertical teeth to be inserted (not shown in the figure). The sleeve 81 has a groove 811 on its inner circumferential wall; the shaft 73 has a receiving groove 731 on its side wall, and the retaining ball 82 is slidably inserted into the receiving groove 731 and slides along the opening direction of the receiving groove 731, and the retaining ball 82 is engaged in the groove 811; the retaining spring 83 is located in the receiving groove 731, and the retaining spring 83 fixes the retaining ball 82 and the shaft 73; when the retaining spring 83 is in its natural state, the spherical surface of the retaining ball 82 protrudes from the side wall of the shaft 73, and when the retaining ball 82 is compressed, the retaining ball 82 retracts into the receiving groove 731, thereby realizing the adjustment of the position between the sleeve 81 and the shaft 73; the support ring 84 is fixedly connected to the outer wall of the output shaft of the motor 2, and is used to support the sleeve 81 when the sleeve 81 is sleeved on the outer wall of the output shaft of the motor 2.

[0039] Referring to Figures 2 and 3, an adjustment assembly 9 is provided between the sleeve 81 and the handle 1 for adjusting whether the rotating shaft 73 is connected to the output shaft of the motor 2. The adjustment assembly 9 includes an adjustment rod 91, a positioning plate 92, a positioning block 93, a push plate 94, an adjustment spring 95, and a plug-in block 96. An adjustment hole 12 is provided on the outer circumferential wall of the handle 1, and the opening direction of the adjustment hole 12 is the same as the length direction of the handle 1. One end of the adjustment rod 91 passes through the adjustment hole 12 and slides along the opening direction of the adjustment hole 12. A plug-in groove 911 is provided on the end face of the adjustment rod 91 located inside the handle 1. Specifically, the adjustment rod 91 can be a rectangular columnar adjustment rod 91. The positioning plate 92 is located inside the handle 1, and the positioning plate 92 is sleeved on the outer circumferential wall of the adjustment rod 91 and fixedly connected to the adjustment rod 91. The positioning plate 92 is used to close the adjustment hole 12.

[0040] Referring to Figures 2 and 3, a positioning groove 13 is formed on the inner wall of the handle 1. The positioning groove 13 does not penetrate the handle 1. The positioning block 93 is fixedly connected to the side wall of the positioning plate 92 near the adjusting rod 91 and is inserted into the positioning groove 13. The push plate 94 is fixedly connected to the remaining end of the adjusting rod 91, that is, the end of the adjusting rod 91 located outside the handle 1. The adjusting spring 95 is sleeved on the outer wall of the adjusting rod 91 and can slide along the outer wall of the adjusting rod 91. The adjusting spring 95 is located between the push plate 94 and the handle 1. When the adjusting spring 95 is in its natural state, the positioning block 93 is inserted into the positioning groove 13, and the positioning plate 92 closes the adjusting hole 12. The plug block 96 is fixedly connected to the outer circumferential wall of the sleeve 81, and the plug block 96 is used to insert into the plug groove 911; the plug block 96 gradually becomes pointed from the end near the sleeve 81 to the end away from the sleeve 81; when the adjusting spring 95 is in a compressed state, the plug block 96 is inserted into the plug groove 911, and at this time, pushing the adjusting rod 91 along the opening direction of the adjusting hole 12 can realize the adjustment of the relative position between the sleeve 81 and the motor 2.

[0041] When the connecting piece 8 is used to connect the rotating shaft 73 to the output shaft of the motor 2, the push plate 94 is pushed, and the push plate 94 drives the adjusting rod 91 to move closer to the sleeve 81. At this time, the insertion block 96 is inserted into the insertion groove 911. The adjusting rod 91 is pushed along the length direction of the adjusting hole 12. At this time, the adjusting rod 91 drives the sleeve 81 to move downward. The retaining spring 83 is compressed and retracts into the receiving groove 731. As the sleeve 81 moves downward, the sleeve 81 is sleeved on the output shaft of the motor 2, thereby realizing the connection between the rotating shaft 73 and the output shaft of the motor 2.

[0042] When the inflation chamber of the item to be inflated is in a fully folded state, motor 2 is started, and motor 2 drives the blade fan 3 to rotate, thereby inflating the item to be inflated and putting it in an unfolded state. The connecting piece 8 is used to connect the rotating shaft 73 to the output shaft of motor 2. At this time, the reinforcing fan 72 improves the inflation efficiency. When there is a certain amount of gas in the item to be inflated, with the rotation of the blade fan 3 and the reinforcing fan 72, the outside gas is filled into the item to be inflated from the end of the inner cylinder 5, thereby achieving the effect of improving the inflation efficiency.

[0043] When the connecting piece 8 is used to connect the rotating shaft 73 to the output shaft of the motor 2, as the motor 2 drives the blade fan 3 to rotate, the motor 2 also drives the reinforcing fan 72 to rotate. The rotation of the reinforcing fan 72 causes the gas that enters the pressurization chamber 712 through the through hole 711 to be discharged through the gap between the top cover 71 and the inner cylinder 5. This increases the gas flow rate and improves the inflation efficiency. At the same time, under the action of the reinforcing fan 72, the gas flow rate discharged from the inflation pipe 6 is accelerated, resulting in lower pressure. Consequently, more gas enters the item to be inflated from the end of the inner cylinder 5, improving the inflation efficiency.

[0044] Referring to Figure 1, a connecting pin 10 is fixedly connected to the outer wall of the inflation tube 6, and a clamping plate 101 is fixedly connected to the end of the connecting pin 10 facing away from the inflation tube 6. The connecting pin 10 facilitates the connection of interfaces of different shapes, making it easy to fix the inflation tube 6 to the item to be inflated; the clamping plate 101, the connecting pin 10, and the inflation tube 6 work together to clamp interfaces that cannot be snapped together, thus achieving the effect of facilitating connection with the interface of the item to be inflated.

[0045] The implementation principle of the inflation booster device in this application embodiment is as follows: The item to be inflated is connected to the inflation tube 6. At this time, the motor 2 is started, and the output shaft of the motor 2 drives the fan blade 3 to rotate. At this time, the outside gas enters the handle 1 through the air inlet 11 and is blown out through the gap between the inner cylinder 5 and the outer cylinder 4, thereby realizing the inflation of the item. During the inflation process, the flowing gas passes through the motor 2, thereby realizing the heat dissipation of the motor 2 while realizing inflation. The gap between the inner cylinder 5 and the outer cylinder 4 is small, which facilitates the increase of gas flow rate. The higher the flow rate, the lower the pressure. At this time, the outside atmospheric pressure gas flows from the inner cylinder 5 to the item to be inflated, which also achieves the effect of improving inflation efficiency.

[0046] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An inflation booster device, characterized in that: include: Handle (1) is a tubular structure with a closed bottom. An air inlet (11) is provided at the bottom of the outer wall of the handle (1). Motor (2) is located inside the handle (1) and fixedly connected to the handle (1). Blade (3) is located inside the handle (1) and is coaxially fixedly connected to the output shaft of the motor (2). It is used to discharge the gas entering through the air inlet (11) from the top of the handle (1). Outer cylinder (4) is fixedly connected to the top of the handle (1) and communicates with the handle (1). Inner cylinder (5) is inserted into the outer cylinder (4). The end of the inner cylinder (5) is fixedly connected to the outer cylinder (4) and is in a closed state. The handle (1) is connected to the end of the outer cylinder (4). Air inlet pipe (6) is fixedly connected to the outer cylinder (4). At the beginning of the outer cylinder (4), and the air inlet pipe (6) is connected to the outer cylinder (4); the reinforcing assembly (7) includes: a rotating shaft (73), which is coaxial with the output shaft of the motor (2); a connecting piece (8) is provided between the rotating shaft (73) and the output shaft of the motor (2) for connecting them; a reinforcing fan (72), located between the top cover (71) and the inner cylinder (5), and used to discharge the gas that enters the pressurization chamber (712) through the through hole (711) from the beginning of the inner cylinder (5); the connecting piece (8) includes a sleeve (81), which is slidably sleeved on the circumferential outer wall of the rotating shaft (73) and slides along the length direction of the rotating shaft (73); the remaining end of the sleeve (81) is sleeved on the output of the motor (2). The shaft extends outward and slides along the length of the shaft (73); the sleeve (81) has a groove (811) on its inner wall; an adjustment assembly (9) for adjusting whether the shaft (73) and the output shaft of the motor (2) are connected is provided between the sleeve (81) and the handle (1); the handle (1) has an adjustment hole (12) on its outer wall, the direction of which is the same as the length of the handle (1); the handle (1) has a positioning groove (13) on its inner wall; the adjustment assembly (9) includes: an adjustment rod (91), one end of which passes through the adjustment hole (12) and slides along the length of the adjustment hole (12); the end face inside the handle (1) has a insertion groove (911). The positioning plate (92) is located inside the handle (1) and is fitted onto the outer circumferential wall of the adjusting rod (91) and fixedly connected to the adjusting rod (91); the positioning plate (92) is used to close the adjusting hole (12); the positioning block (93) is fixedly connected to the side wall of the positioning plate (92) near the adjusting rod (91) and inserted into the positioning groove (13); the push plate (94) is fixedly connected to the remaining end face of the adjusting rod (91); the adjusting spring (95) is fitted onto the outer circumferential wall of the adjusting rod (91) and the adjusting spring (95) is located between the push plate (94) and the handle (1); the insertion block (96) is fixedly connected to the outer circumferential wall of the sleeve (81) and is used to be inserted into the insertion groove (911).

2. The inflation booster device according to claim 1, characterized in that: The inner cylinder (5) is provided with a reinforcing component (7), which includes: a top cover (71), which is located inside the inner cylinder (5) and fixedly connected to the inner cylinder (5), and the top cover (71) and the inner cylinder (5) form a pressurizing chamber (712); a through hole (711) is provided on the upper surface of the top cover (71); and a rotating shaft (73), which passes through the inner cylinder (5) and is rotatably connected to the inner cylinder (5), and the rotating shaft (73) is coaxial with the output shaft of the motor (2).

3. The inflation booster device according to claim 2, characterized in that: The rotating shaft (73) has a receiving groove (731) on its circumferential sidewall. The connecting member (8) includes: a retaining ball (82), which is slidably inserted into the receiving groove (731) and slides along the opening direction of the receiving groove (731); the retaining ball (82) is engaged in the retaining groove (811); a retaining spring (83), which is located in the receiving groove (731) and the retaining spring (83) is fixedly connected to the retaining ball (82) and the rotating shaft (73); and a support ring (84), which is fixedly connected to the circumferential outer wall of the output shaft of the motor (2) and is used to support the sleeve (81).

4. The air-pressurizing device according to claim 1, characterized in that: The bottom of the handle (1) is fixedly connected to a mobile power supply (14), which is connected to the motor (2) to supply power to the motor (2).

5. The air-pressurizing device according to claim 1, characterized in that: The plug block (96) gradually becomes pointed from the end near the sleeve (81) to the end away from the sleeve (81).

6. The air-pressurizing device according to claim 1, characterized in that: The inflation tube (6) is fixedly connected to the outer circumferential wall by a connecting nail (10).

7. The inflation booster device according to claim 6, characterized in that: The end of the connecting nail (10) facing away from the inflation tube (6) is fixed with a clamping plate (101).

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