TW201821694A - Air pump capable of inflating tubeless tires characterized by not requiring frequently operating the switch valve among the first air port, the second air port and the air exhausting port, and not spending a lot of time pumping air to reach the required pressure - Google Patents

Abstract

An air pump capable of inflating tubeless tires includes: an air pumping set consisting of an outer cylinder body, an air storing cylinder, a piston and an one-way valve, wherein the piston is slidably installed inside the outer cylinder body, the one-way valve is installed inside the outer cylinder body, and an air chamber is formed among the outer cylinder body, the piston and the one-way valve; an air flow channel consisting of an air storing section and an air inflating section, wherein the air storing section is installed at the air storing cylinder, the air inflating section can be communicated with the air storing section, and the air chamber is unidirectionally communicated with the air flow channel via the one-way valve; an air inflating set connected to the air pumping set and consisting of an air inflating nozzle, wherein the air inflating nozzle can be connected to an object to be inflated; and a switch device consisting of an air flow valve set and a switch member. The air inflating section is installed between the air inflating nozzle and the switch device. The air flow valve set is received in the air flow channel and includes a top core. The switch member includes an abutting portion. The abutting portion selectively abuts against the top core so as to allow the air storing section to communicate with the air inflating section and further communicate with the object to be inflated via the air inflating nozzle.

Description

Pumps capable of pumping tubeless tires

The invention discloses a pump, especially a pump capable of pumping a tubeless tire.

Reference is made to Chinese Patent No. 100357593C for an air pump for bicycles, wherein the air storage bottle is composed of a tank portion capable of storing compressed air and a connection port, and a check valve is provided on the connection port. The check valve is set to store the air storage bottle. Opens when connected to the switch and closes when the air storage bottle is removed. The manual pump injects compressed air into the air storage bottle and is composed of a cylinder, a piston inserted into the cylinder, a piston rod connected to the upper surface of the piston, and a holding portion connected to the other end of the piston rod. The piston rod is inserted and passed through the rear of the cylinder. End of the circular plug. An air supply port for exhausting air from the cylinder is formed at the front end of the cylinder. The switching valve is composed of a first air port connected to a connection port of an air storage bottle, a second air port connected to an air supply port of a manual pump, and an air discharge port for exhausting compressed air in a tank or air in a cylinder.

When a user uses the above air pump to pump a tubeless tire, the air discharge port is connected to the tubeless tire. First, the switching valve is rotated to communicate the first air port with the second air port. The manual pump injects compressed air into the air storage bottle, and then rotates The switching valve connects the first air port to the air exhaust port, and the compressed air contained in the air storage bottle is quickly filled into the tubeless tire. However, the compressed air contained in the air storage bottle cannot inflate the tubeless tire to the tire pressure required by the user. Therefore, it is necessary to turn the switching valve to connect the second air port to the air exhaust port, and inflate the manual pump to The inner tube tire makes the user need to frequently operate the switching valve to switch between the first air port, the second air port, and the air discharge port when using the air pump to inflate the tubeless tire, which is not convenient. The volume of the air storage bottle is greater than the maximum volume of the manual pump's one-way stroke, which requires the user to spend a lot of time to move the manual pump back and forth to reach the required pressure in the air storage bottle, and the air storage bottle stores too much High-pressure gas can't inflate tubeless tires to the proper tire pressure. Users still need to use a manual pump to inflate, but the maximum volume of a manual pump in one stroke is less than the volume of the air storage bottle, which causes the user to spend a lot of energy and Time to inflate the tubeless tire to the proper tire pressure.

In view of the fact that the above-mentioned problems of the prior art cannot be effectively solved and overcome, the applicant filed this patent application to solve the foregoing problems.

The technical problem to be solved by the present invention is that the compressed air contained in the air storage bottle of the conventional air pump cannot inflate the tubeless tire to the tire pressure required by the user. The air port communicates with the air exhaust port, and the manual pump is pumped into the tubeless tire, so that when the user uses the air pump to pump the tubeless tire, the switching valve needs to be frequently operated between the first air port, the second air port and the air exhaust port. It is not convenient to change from time to time. The volume of the air storage bottle is larger than the maximum volume of the manual pump in one stroke. This makes it necessary for the user to spend a lot of time to reciprocate the manual pump to reach the required pressure in the air storage bottle.

The pump for pumping tubeless tires according to the present invention comprises: a pump set including an outer cylinder, an air cylinder, a piston and a one-way valve, and the piston is slidably arranged in the outer cylinder. There is a changeable displacement length between the piston and the check valve. The check valve is arranged in the outer cylinder. An air chamber is formed between the outer cylinder, the piston and the check valve. The volume is increased or decreased with the change of the displacement length; an air flow channel including an air storage section and an inflation section, the air storage section is arranged on the gas storage cylinder, and the inflation section can communicate with the air storage section, and the gas The chamber communicates with the airflow channel unidirectionally through the one-way valve, and the volume of the air chamber with the largest displacement length is greater than the volume of the gas storage section; an inflation group connected to the inflation group and including an inflation Mouth, the inflatable mouth can be connected to the object to be inflated; a switching device comprising an airflow valve group and a switching element, an inflation section of the airflow channel is arranged between the inflation nozzle and the switching device, and the airflow valve group is accommodated In the airflow channel and includes The top center, the switch member comprises a resisting portion, which selectively abuts the top bearing against the top center of the gas stream such that the gas valve can be in communication with the inflatable section and communication section were to be inflated via the inflation nozzle.

When the user needs to use the pump to inflate the tubeless tire, connect the inflator to the tubeless tire, and drive the top of the switch member away from the airflow valve group, so that the gas storage section cannot communicate with the inflatable section, and then reciprocate Pressing the pump causes the gas chamber to generate pressurized gas. The pressurized gas is stored in the gas storage section through the one-way valve unidirectionally. The gas in the gas storage section is compressed as the pump moves back and forth to be compressed. Generate high pressure gas. Then the top of the switch is pushed against the top center of the air valve group, so that the gas storage section communicates with the inflation section, and the high-pressure gas contained in the gas storage section passes through the inflation section and rapidly through the inflation nozzle. Inflating into the tubeless tire causes the tube lip of the tubeless tire to quickly fit the frame edge of the wheel frame, so that the gas in the tubeless tire cannot leak. If the tire pressure of the tubeless tire does not reach the pressure required by the user, the user only needs to reciprocate the pump to fill the tube with the pressure gas generated by the air chamber, so that the tubeless tire is continuously inflated to the user. Required tire pressure.

In summary, the user only needs to selectively abut the top of the switch against the top center of the air valve group and reciprocate the pump to complete the operation of pumping the entire tubeless tire, which is convenient. Moreover, as the volume of the gas chamber with the maximum displacement length is larger than the volume of the gas storage section, the user can easily reciprocate the pump to store high-pressure gas in the gas storage section easily.

Other objects, advantages, and novel features of the present invention will be more apparent from the following detailed description and the accompanying drawings.

Regarding the technology, means and effects used in the present invention, two preferred embodiments are described in detail below with reference to the drawings. This is for illustration purposes only, and is not limited by such structures in patent applications.

Refer to Figures 1 to 6. The first embodiment of the present invention which can inflate a tubeless tire includes a pump group 10, an air flow channel 20, an inflatable group 30, and a switching device 40. The pump group 10 has an air chamber 101, and the air chamber 101 is unidirectionally connected to the airflow channel 20, the inflation group 30 is connected to the inflator group 10, the switching device 40 is disposed in the airflow channel 20, the inflation group 30 can be connected to the tubeless tire A, and the airflow channel 20 is connected by the switch The device 40 selectively communicates with the tubeless tire A via the inflation group 30. In this embodiment, the air pump capable of inflating a tubeless tire further includes a base 50 and a pressure gauge 60, and the base 50 is disposed on one side of the air pump group 10, and the pressure gauge 60 is connected to the air pump group 10, The pressure gauge 60 can measure the gas pressure of the airflow channel 20.

The pumping group 10 includes an outer cylinder 11, an air reservoir 12, a piston 13, a check valve 14, a base 15 and a cover 16. The air reservoir 12 is connected to one side of the outer cylinder 11, The outer cylinder 11 extends along a first axis L1, the gas storage cylinder 12 extends along a second axis L2, the first axis L1 and the second axis L2 are parallel to each other, and the piston 13 is slidably disposed on the In the outer cylinder 11, the one-way valve 14 is disposed in the outer cylinder 11. The piston 13 and the one-way valve 14 have a changeable displacement length H between the outer cylinder 11 and the piston 13. The air chamber 101 is formed between the check valve 14, and the air chamber 101 can increase or decrease the volume with the change of the displacement length H. The base 15 is connected to the check valve 14, and the cover 16 is disposed on the The outer cylinder 11 is opposite to one end of the one-way valve 14 and covers the gas cylinder 12. The pressure gauge 60 is disposed on the cover 16.

In this embodiment, the pumping group 10 further includes a rod member 17, an end cap 18, and a grip 19, and the rod member 17 connects the piston 13 away from one end of the check valve 14 and along the first axis L1. Extended, the end cap 18 is disposed in the outer cylinder 11, and the end cap 18 and the check valve 14 are respectively disposed at opposite ends of the outer cylinder 11 along the first axis L1, and the rod member 17 The end cap 18 is slidably passed through. The grip 19 is disposed at one end of the rod 17 opposite to the piston 13 and is held by a user. When the piston 13 slides to the outer cylinder 11 adjacent to the end cap 18 On one side, the piston 13 and the check valve 14 have the largest displacement length H, the piston 13 slides to the outer cylinder 11 adjacent to the one side of the check valve 14, the piston 13 and the check valve 14 There is a minimum displacement length H between the directional valve 14. The base 50 is disposed on one end of the pumping group 10 opposite to the end cover 18 and sleeves the outer cylinder 11, the gas reservoir 12 and the base 15.

The air flow channel 20 includes a gas transmission section 21, a gas storage section 22, a pipeline section 23, a first-rate track section 24, and an inflation section 25. The gas transmission section 21 is disposed on the base 15, and the air chamber 101 passes through the The one-way valve 14 communicates with the gas transmission section 21 unidirectionally. The gas storage section 22 is disposed on the gas storage cylinder 12 and communicates with the gas transmission section 21. The gas storage section 22 extends along the second axis L2. The pipeline section 23 is provided on the cover 16 and communicates with the gas storage section 22 and the pressure gauge 60, the flow channel section 24 communicates with the gas transmission section 21, and the inflation section 25 can communicate with the flow channel section 24 and the gas storage section 22 The volume is 40CC to 240CC. In this embodiment, the cross-sectional area taken by the air chamber 101 perpendicular to the first axis L1 is larger than the cross-sectional area taken by the gas storage section 22 perpendicular to the second axis L2, and the air chamber 101 follows the largest The displacement length H has a volume larger than that of the gas storage section 22.

The inflatable group 30 includes an inflatable nozzle 31 and an inflatable hose 32. The opposite ends of the inflatable hose 32 are connected to the inflatable nozzle 31 and the base 15, respectively. The flow channel section 24 is disposed on the inflatable hose 32. The inflation nozzle 31 can be connected to the tubeless tire A. In this embodiment, the inflatable nozzle 31 includes a through hole 311, which penetrates the inflatable nozzle 31 and communicates with the inflatable section 25.

The switching device 40 includes an airflow valve group 41 and a switching member 42. The inflation section 25 is disposed between the inflation nozzle 31 and the switching device 40. The airflow valve group 41 is disposed in the airflow channel 20. The switching member 42 The through hole 311 is rotatably penetrated and selectively abuts against the airflow valve group 41, so that the flow passage section 24 can communicate with the inflation section 25 through the airflow valve group 41.

The airflow valve group 41 includes a main body 411, a top core 412, and an elastic member 413. The main body 411 is accommodated in the airflow channel 20. The top core 412 is slidably disposed on the main body 411. The elastic member 413 elastically resists The top core 412 is pressed so that the top core 412 elastically abuts against the main body 411. The switching member 42 includes an abutting top portion 421 which is eccentrically disposed on the switching member 42. The abutting top portion 421 is rotatably received in the airflow passage 20 and selectively abuts a top of the airflow valve group 41. Heart 412.

The main body 411 includes a perforation 4111 and a shoulder 4112. The perforation 4111 runs through the opposite sides of the main body 411 and communicates with the flow channel section 24 and the inflatable section 25. The shoulder 4112 is looped around the perforation 4111. The top core 412 elastically abuts against the shoulder portion 4112 and includes an elastic ring 4121. The elastic ring 4121 is provided on the outer edge of the top core 412. The top core 412 slides relative to the perforation 4111 to enable the elastic ring. 4121 seals the shoulder 4112. When the elastic ring 4121 seals the shoulder 4112, the gas storage section 22 cannot communicate with the inflatable section 25. When the elastic ring 4121 is away from the shoulder 4112, the gas storage section 22 communicates with the inflatable section 25.

Refer to Figures 3 to 6. The switch device 40 can be switched between a closed position (shown in FIG. 3) and an open position (shown in FIG. 7). When the switch device 40 is in the closed position, the top portion 421 of the switch member 42 is far away from the airflow valve group 41, the top core 412 elastically presses against the shoulder portion 4112, and the elastic ring 4121 seals the shoulder portion 4112. As a result, the flow channel section 24 cannot communicate with the inflatable section 25, the user holds the grip 19 and reciprocates the pump, the piston 13 slides back and forth relative to the outer cylinder 11, so that the Pressurized gas flows unidirectionally into the gas delivery section 21 of the airflow channel 20 through the check valve 14, and sequentially flows into the gas storage section 22, the pipeline section 23 and the pressure gauge 60, and into the flow channel section 24. The pressurized gas located in the flow passage section 24 is blocked by the elastic ring 4121 of the airflow valve group 41 and cannot flow into the inflation section 25. The user moves the pump so that the pressurized gas generated by the air chamber 101 is stored in the gas storage section 22, and the gas storage section 22 generates high-pressure gas as the pressurized gas from the pump is filled.

Continuing to refer to FIGS. 7 to 10. When the user changes the switch device 40 from the closed position to the open position, the switch member 42 is pulled, and the switch member 42 rotates relative to the through hole 311 of the inflation nozzle 31, and the abutting portion 421 follows the switch The member 42 rotates against the top core 412, so that the elastic ring 4121 is far away from the shoulder portion 4112, and the flow channel section 24 communicates with the inflatable section 25. When the switch device 40 is in the open position, the high-pressure gas in the gas storage section 22 sequentially passes through the gas transmission section 21 and the flow channel section 24, enters the perforation 4111, and passes through the elastic ring 4121 and the shoulder The gap between 4112 flows into the inflated section 25, and the inflated nozzle 31 quickly inflates into the tubeless tire A, which causes the tube lip of the tubeless tire A to quickly fit the frame edge of the wheel frame, so that the tubeless tire A The gas cannot leak.

Refer to FIGS. 11 and 12. The structure of the second embodiment of the air pump capable of inflating the tubeless tire is substantially the same as that of the first embodiment, and the operation of the second embodiment of the air pump capable of inflating the tubeless tire is substantially the same as that of the first embodiment. . The difference is that the inflatable hose 32a is connected to the cover 16, the gas transmission section 21a of the air flow channel 20a is disposed on the base 15 and communicates with the gas storage section 22, and the air chamber 101 is unidirectionally connected with the gas transmission section 21a The flow passage section 24a of the airflow passage 20a is disposed on the inflatable hose 32a and communicates with the pipeline section 23. The switch device 40 a is disposed at one end of the gas storage cylinder 12 adjacent to the cover 16 and between the gas storage section 22 and the pipeline section 23. The perforation 4111a of the switch device 40a communicates with the gas storage section 22 and the pipeline section 23, and the top core 412 slides relative to the perforation 4111a to selectively communicate the gas storage section 22 with the pipeline section 23 through the perforation 4111a. The body 411a further includes a rotation hole 4113a, which runs through the opposite sides of the body 411a and communicates with the perforation 4111a. The switch 42a rotatably passes the gas cylinder 12 and the rotation hole 4113a. 421a is rotatably received in the rotation hole 4113a.

To sum up, the inventor capable of inflating a tubeless tire has the following advantages:

1. When the user needs to use the pump to inflate the tubeless tire A, the inflating nozzle 31 is connected to the tubeless tire A, and the top part 421 of the switch 42 is driven away from the airflow valve group 41, so that the gas storage section 22 is unable to communicate with the inflatable section 25, the switching device 40 is changed to the closed position, and then the pump is moved to cause the gas chamber 101 to generate pressurized gas. The pressurized gas is stored unidirectionally through the check valve 14 to the storage. The gas section 22 generates high-pressure gas as the pressure gas of the pump is filled. Then, the abutment top 421 of the switch 42 is pressed against the atop center 412 of the airflow valve group 41, so that the gas storage section 22 communicates with the aeration section 25, and the switch device 40 is changed to the open position and accommodated in the gas storage The high-pressure gas in the section 22 passes through the inflation section 25 and quickly inflates into the tubeless tire A through the inflation nozzle 31, causing the tube lip of the tubeless tire A to quickly fit the frame edge of the wheel frame, so that the tubeless tire A The gas cannot leak. If the tire pressure of the tubeless tire A does not reach the pressure required by the user, the switch device 40 is also located in the open position. The user only needs to move the pump back and forth to fill the pressure gas generated by the air chamber 101 into the The inner tube tire A makes the tubeless tire A continue to inflate to the tire pressure required by the user. The user only needs to operate the switch device 40 to switch between the closed position and the open position and move the pump back and forth to complete the operation of pumping the entire tubeless tire A, which is convenient.

2. The cross-sectional area taken by the air chamber 101 perpendicular to the first axis L1 is larger than the cross-sectional area taken by the gas storage section 22 perpendicular to the second axis L2, and the air chamber 101 follows the maximum displacement The length H has a volume greater than the volume of the gas storage section 22. When the switch device 40 is changed to the closed position, the user can reciprocate the pump to fill the pressure gas in the gas chamber 101 into the gas storage section 22 to easily generate high-pressure gas. When a user needs to inflate the tubeless tire A, the high-pressure gas contained in the gas storage section 22 is quickly inflated into the tubeless tire A through the inflation nozzle 31, causing the tubeless tire A to quickly attach the lip of the tubeless tire A. The frame edge of the closed wheel frame prevents the gas in the tubeless tire A from leaking, and the user can continue to inflate the tubeless tire A to the required tire pressure.

3. The volume of the gas storage section 22 is 40CC to 240CC. When the volume of the gas storage section 22 is 40CC, the user changes the switch device 40 to the closed position and moves the pump to make the gas storage section 22 easily generate a high-pressure gas of 500 PSI. When the volume of the gas storage section 22 is 240CC, the user changes the switch device 40 to the closed position and moves the pump to make the gas storage section 22 easily generate a high-pressure gas of 200 PSI.

However, the above are only the preferred embodiments of the present invention. When the scope of implementation of the present invention cannot be limited by this, the changes in numerical values or the replacement of equivalent elements, or the equivalent according to the scope of the patent application of the present invention Changes and modifications should all fall within the scope of the invention patent.

10‧‧‧ pumping group

101‧‧‧Air chamber

11‧‧‧ Outer cylinder

12‧‧‧Gas tank

13‧‧‧Piston

14‧‧‧ Check valve

15‧‧‧ base

16‧‧‧ cover

17‧‧‧ Rod

18‧‧‧ end cap

19‧‧‧ Grip

20‧‧‧Airflow channel

21‧‧‧gas transmission section

22‧‧‧Gas storage section

23‧‧‧Pipeline section

24‧‧‧ runner section

25‧‧‧ Inflatable section

30‧‧‧ inflatable group

31‧‧‧ inflatable mouth

311‧‧‧through hole

32‧‧‧ inflatable hose

40‧‧‧ Switchgear

41‧‧‧Airflow valve group

411‧‧‧Body

4111‧‧‧perforation

4112‧‧‧Shoulder

412‧‧‧ Top heart

4121‧‧‧Elastic ring

413‧‧‧Elastic piece

42‧‧‧Switch

421‧‧‧ arrived at the top

50‧‧‧ base

60‧‧‧Pressure gauge

20a ‧‧‧Airflow channel

21a ‧‧‧gas transmission section

24a ‧‧‧ runner section

32a ‧‧‧ inflatable hose

40a ‧‧‧ Switchgear

411a‧‧‧Body

4111a‧‧‧perforation

4113a‧‧‧Swivel hole

42a ‧‧‧Switch

421a‧‧‧arrived at the top

A‧‧‧ Tubeless Tire

L1‧‧‧ first axis

L2‧‧‧Second axis

H ‧‧‧Displacement length

FIG. 1 is a perspective view of a first embodiment of a pump for inflating a tubeless tire according to the present invention. FIG. 2 is a partial cross-sectional view taken from FIG. 1. FIG. 3 is a schematic diagram of a first embodiment of a pump for inflating a tubeless tire according to the present invention, showing that the switch device is in a closed position. Fig. 4 is a continuation of Fig. 3, which shows that the user reciprocates the pump to cause the gas chamber to generate pressure gas, and the pressure gas flows in the direction of the arrow. FIG. 5 is a continuation of FIG. 4, which shows that the pressure gas in the flow channel section flows in the direction of the arrow, but is blocked by the air valve group of the switching device and cannot enter the inflation section. FIG. 6 is a schematic diagram showing the use of another perspective taken in FIG. 4. FIG. 7 is a schematic diagram of a first embodiment of a pump capable of inflating a tubeless tire according to the present invention, showing that the switch device is in an open position. FIG. 8 is a continuation of FIG. 7 and shows that the high-pressure gas contained in the gas storage section flows in the direction of the arrow. FIG. 9 is a continuation of FIG. 7, showing that the high-pressure gas located in the flow channel section flows in the direction of the arrow and unidirectionally flows into the inflation section through the air valve group of the switching device and continues to inflate into the tubeless tire. FIG. 10 is a schematic view of using another view taken from FIG. 7. FIG. 11 is a schematic diagram of a second embodiment of the air pump capable of inflating a tubeless tire according to the present invention, showing that the switch device is in a closed position, and the pressurized gas generated by the air chamber flows in the direction of the arrow. FIG. 12 is a continuation of FIG. 11, showing that the switchgear is in the on position and the high-pressure gas contained in the gas storage section flows in the direction of the arrow.

Claims (11)

An air pump capable of inflating a tubeless tire includes: an air pump group including an outer cylinder, an air cylinder, a piston and a one-way valve, and the piston is slidably disposed in the outer cylinder. A check valve is disposed in the outer cylinder. The piston and the check valve have a changeable displacement length. An air chamber is formed between the outer cylinder, the piston and the check valve. The air chamber can follow The volume is increased or decreased as the length of the displacement changes; an air flow channel including an air storage section and an inflation section, the air storage section is arranged on the air storage cylinder, and the inflation section can communicate with the air storage section and the air chamber The one-way valve communicates with the airflow channel unidirectionally, and the volume of the air chamber with the maximum length of the displacement is greater than the volume of the gas storage section; an inflatable group connected to the inflatable group and including an inflatable nozzle, The inflation nozzle can be connected to an object to be inflated; a switching device including an airflow valve group and a switching element, an inflation section of the airflow channel is disposed between the inflation nozzle and the switching device, and the airflow valve group is accommodated in the airflow valve group; Airflow channel and includes a Top center, the switch includes an abutment top, which abuts the top center of the air valve group selectively so that the gas storage section can communicate with the inflation section and communicate with the object to be inflated through the inflation nozzle. The air pump capable of inflating a tubeless tire according to claim 1, wherein the air cylinder is connected to one side of the outer cylinder, the outer cylinder extends along a first axis, and the air cylinder extends along a second The axis extends, and the cross-sectional area taken by the gas chamber perpendicular to the first axis is larger than the cross-sectional area taken by the gas storage segment perpendicular to the second axis. The inflator capable of inflating a tubeless tire according to claim 2, wherein the air chamber extends along the first axis, the gas storage section extends along the second axis, and the first axis and the second axis The axes are parallel to each other. The air pump capable of inflating a tubeless tire as described in claim 3, wherein the volume of the air storage section is 40CC to 240CC. The inflator capable of inflating a tubeless tire according to any one of claims 1 to 4, wherein the inflating nozzle includes a through hole, the through hole communicates with the inflating section, and the switch member rotatably passes through the through hole. And the abutting portion is rotatably accommodated in the airflow channel. The inflator capable of inflating a tubeless tire according to claim 5, wherein the inflating group includes a base, the base is connected to the check valve, the inflating group includes an inflating hose, and the inflating hose is opposite two The ends are respectively connected to the inflatable nozzle and the base. The air flow channel includes a gas transmission section and a first-rate channel section. The gas transmission section is arranged on the base and communicates with the gas storage section. The air chamber communicates with the gas transmission unidirectionally. The flow channel section is arranged on the inflation hose and communicates with the gas transmission section, and the flow channel section can communicate with the inflation section. The inflator capable of inflating a tubeless tire according to claim 6, wherein the airflow valve group includes a body, the body has a perforation, the perforation runs through opposite sides of the body and communicates the inflatable section and the flow channel respectively Segment, the top center slides relative to the perforation to selectively connect the flow channel segment of the airflow channel to the inflatable segment via the perforation. The inflator capable of inflating a tubeless tire according to any one of claims 1 to 4, wherein the inflator group includes a cover member disposed on an end of the outer cylinder body opposite to the one-way valve and The gas storage tube is shielded, the airflow channel includes a pipeline section, the pipeline section is disposed on the cover, and the switch device is disposed on one end of the gas storage cylinder adjacent to the cover and is accommodated between the gas storage section and the pipeline section In the meantime, the pipeline section communicates with the inflation section, and the gas storage section can selectively communicate with the pipeline section via the switch device. The inflator capable of inflating a tubeless tire as described in claim 8, wherein the airflow valve group includes a body having a perforation that penetrates the opposite sides of the body and communicates the gas storage section and the tube respectively. In the section, the top center slides relative to the perforation to selectively connect the gas storage section of the airflow channel to the pipeline section through the perforation. The inflator capable of inflating a tubeless tire according to claim 9, wherein the body includes a rotation hole that penetrates the opposite sides of the body and communicates with the perforation, and the switch member rotatably passes through the rotation hole. And the abutting portion is rotatably received in the rotating hole. The inflater capable of inflating a tubeless tire according to claim 8, wherein the inflating group includes a base, the base is connected to the check valve, the inflating group includes an inflating hose, and the inflating hose is opposite two The ends are respectively connected to the inflation nozzle and the cover. The airflow channel includes a gas transmission section and a first-rate channel section. The gas transmission section is arranged on the base and communicates with the gas storage section. The air chamber communicates with the gas transmission unidirectionally. The flow channel section is arranged on the inflatable hose and communicates with the pipeline section and the inflatable section.