CN219029640U - Inflating device suitable for tire air-tonifying - Google Patents

Abstract

The utility model relates to an inflation device suitable for tire air repair. The inflating device is used for a bicycle, the bicycle comprises a saddle and a framework, the framework comprises a saddle pipe with an inner hole, and the saddle can be connected to the saddle pipe in a lifting way so as to cover or expose the saddle pipe; the inflating device comprises a pulling and pressing piece, a piston, a hose, an inflating nozzle and a pressure relief piece; the piston is connected to the bottom of the pulling and pressing piece and is inserted into an inner hole of the saddle pipe; one end of the hose is communicated with the saddle pipe, and the other end of the hose is communicated with the inflating nozzle which is used for locking the air inlet nozzle of the tire; the pressure release piece is communicated with the saddle pipe and used for adjusting the air pressure in the inner hole; when the saddle is lifted from the upper part of the saddle pipe, the pulling and pressing piece can be pulled and pressed; when the saddle is reset, the position of the pulling and pressing piece relative to the saddle pipe can be limited. Therefore, the inflator and the bicycle are integrated, and the problems that the inflator is easy to lose and the application range is limited when the inflator is fixed on the bicycle in the prior art are solved.

Description

Inflating device suitable for tire air-tonifying

Technical Field

The utility model belongs to the technical field of bicycle spare and accessory parts, and relates to an inflation device suitable for tire air repair.

Background

With the improvement of living standard, various interesting outdoor exercises become the first choice of people in holidays. The outdoor riding can not only play a certain role in exercise and body-building, but also can be closely contacted with the nature, and helps people to open the field of vision and relax the mind and body. Therefore, the outdoor activity mode is one of the current mainstream outdoor activity modes.

In the actual riding process, the problem of tyre deficiency often occurs in the bicycle. Although a small inflator is simply fixed on part of the bicycles, the bicycle is only suitable for a very small number of vehicles (such as some mountain sports bicycles), and meanwhile, the bicycle body can vibrate when going up and down a slope, particularly when passing through an uneven road surface, so that the inflator is easy to lose in the riding process. Some bicycles are not provided with an inflator, and when the tire air quantity is insufficient, an external inflator needs to be found in time to inflate the tire. However, many vehicle types do not have an associated pump for convenience of riding, so it is difficult to find a pump that can be used to pump a tire immediately in the event of a tire deficiency.

Therefore, how to use the original parts and structural space of the bicycle to make the bicycle have the inflating function is an important subject to be considered at present.

Disclosure of Invention

The utility model aims to provide an inflation device suitable for tire air supplement, which solves the problems that an inflator is easy to lose when being fixed on a bicycle in the prior art and has a limited application range.

In order to achieve the above object, the present utility model provides an inflation device suitable for tire inflation for a bicycle, the bicycle comprising a saddle and a skeleton, the skeleton comprising a saddle pipe having an inner hole, the saddle being connected to the saddle pipe in a liftable manner so as to be able to cover or expose the saddle pipe; the inflating device comprises a pulling and pressing piece, a piston, a hose, an inflating nozzle and a pressure relief piece;

the piston is connected to the bottom of the pulling and pressing piece and is inserted into the inner hole of the saddle pipe; one end of the hose is communicated with the saddle pipe, the other end of the hose is communicated with the inflating nozzle, and the inflating nozzle is used for locking an air inlet nozzle of a tire;

the pressure release piece is communicated with the saddle pipe and used for adjusting the air pressure in the inner hole;

when the saddle is lifted from the upper part of the saddle pipe, the pulling and pressing piece can be pulled/pressed; when the saddle is reset, the position of the pulling element relative to the saddle tube can be defined.

In one possible design, the pull member includes a pull rod, a first cylinder, a second cylinder, and a third cylinder of sequentially increasing diameter, and the gas seal includes: the second inflator upper seal is matched with the third inflator, the second inflator lower seal is matched with the saddle pipe inner hole, the third inflator upper seal is matched with the third inflator, and the third inflator lower seal is matched with the second inflator;

one end of the third air cylinder is provided with the third air cylinder upper seal, and the other end of the third air cylinder is provided with the third air cylinder lower seal; the upper end of the second air cylinder is provided with a second air cylinder upper seal, and the other end of the second air cylinder is provided with a second air cylinder lower seal;

the pull rod is respectively inserted into the upper seal of the third air cylinder, the upper seals of the third air cylinder and the second air cylinder and is inserted into the first air cylinder; the first air cylinder is respectively inserted into the third air cylinder lower seal and the second air cylinder lower seal;

the second inflator is inserted into the lower seal of the third inflator; the second inflator is arranged in the saddle pipe inner hole in a sealing way;

wherein a sealed space between the tie rod and the third air cylinder is formed as a first air chamber, a sealed space between the first air cylinder and the second air cylinder is formed as a second air chamber, and a sealed space between the tie rod and the first air cylinder is formed as a third air chamber;

so that when a pulling force is applied to the pull rod, gas can be sucked into the first gas chamber; when pressure is applied to the pull rod, the gas in the first gas chamber can be initially compressed and extruded into the second gas chamber; when pulling force is applied to the pull rod again, the primarily compressed gas can enter the third air chamber; when pressure is applied to the pull rod again, the gas in the third air chamber can be compressed again and extruded into the hose.

In one possible design, the second cylinder upper seal, the second cylinder lower seal, the third cylinder upper seal, and the third cylinder lower seal are all provided with one-way valves to enable one-way gas flow.

In one possible design, the pumping device further comprises a handle, which is connected perpendicularly to the pull rod.

In one possible design, the handle is sleeved with an anti-skid sleeve.

In one possible design, the pulling and pressing piece comprises at least three inflators with different pipe diameters, the air sealing piece comprises a plurality of sealing plugs which are arranged in one-to-one correspondence with the inflators, and the sealing plugs are connected with the inflators in one-to-one correspondence;

the small-diameter inflator is inserted into the adjacent inflators, the inflators are sequentially distributed along the direction from top to bottom in the order that the diameters of the inflators are gradually reduced, and the inflators are arranged step by step so as to compress gas in the inner hole when pressure is applied to the inflator with the smallest diameter.

In one possible design, the pumping device further comprises a fixing part, the fixing part is hooped on the saddle pipe, and a buckle is arranged on the fixing part, so that the hose or the pumping nozzle is clamped on the buckle.

In one possible design, one end of the hose is provided with a buckling pipe, and the inner wall of the buckling pipe is provided with internal threads; the bottom of the saddle pipe is provided with a boss communicated with the inner hole, the boss is provided with external threads matched with the internal threads, and the buckling pipe is in threaded connection with the boss.

In one possible design, the saddle is connected to the saddle tube by a bracket that is clasped to the saddle tube;

the saddle is inserted into the positioning hole through a pin shaft so as to be capable of overturning relative to the bracket; the rear end of the support is provided with a clamping table, the saddle is provided with a clamping groove matched with the clamping table, and the clamping groove is clamped in the clamping table.

In one possible design, the pressure relief member is configured as a threaded rod, the bottom of the saddle tube is provided with a threaded hole, and the threaded rod is inserted into the threaded hole.

In one possible design, a seal is provided between the screw and the saddle tube.

The engineering process of the pumping device can be summarized as follows: when inflation of the tyre of the bicycle is required, the saddle can be lifted to expose the pulling and pressing member, in which case the pulling and pressing member can be held and then inflated. When the tire is fully inflated, if redundant gas exists in the saddle pipe, the pressure release part can be opened, so that high-pressure gas in the inner hole is discharged through the pressure release part, and the pressure of the inner hole of the saddle pipe is adjusted. And then resetting the pressure release piece, and finally resetting the saddle, thereby realizing the inflation work of the tire.

Through the technical scheme, the structure of the bicycle body can be utilized to carry out optimal design under the condition that the original main structural characteristics of the bicycle are not changed at all. The cost of the inflating device added on the basis of the original manufacturing cost of the bicycle is lower than that of an equal independent inflator, and the bicycle is convenient to popularize and apply and popularize in a standardized way. In addition, the inflator device is integrated with the bicycle, so that the position of the inflator device is fixed, and the inflator device is not portable and can be detached, so that the inflator device is not easy to lose. The maintenance is convenient, and the bending strength of the saddle pipe can be enhanced to a certain extent. In addition, the air pumping device is directly arranged on the bicycle, so that the air pumping device does not occupy excessive use space, the application range is improved, and the air pumping device can be used for any proper bicycle.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an inflation device for tire inflation according to an embodiment of the present utility model, wherein a saddle is in a locked state;

FIG. 2 is a schematic perspective view of an inflation device for tire inflation according to an embodiment of the present utility model, wherein a portion of the frame is removed;

FIG. 3 is a schematic cross-sectional view of an inflation device for tire inflation according to one embodiment of the present utility model;

FIG. 4 is a schematic perspective view of an inflation device for tire inflation according to an embodiment of the present utility model, wherein the saddle is in an open state;

FIG. 5 is a schematic perspective view of an inflation device for tire inflation according to an embodiment of the present utility model, wherein the saddle is in an open state and is being inflated;

FIG. 6 is a schematic perspective view of an inflation device for tire inflation according to an embodiment of the present utility model, wherein the saddle is in an up state and inflation is being performed;

FIG. 7 is a schematic view of an explosion structure of a pulling and pressing member and an air sealing member in an embodiment of an air pumping device suitable for tire air inflation according to the present utility model;

fig. 8 is a schematic structural view of a pulling and pressing member and an air sealing member in an embodiment of an air pumping device suitable for tire air inflation according to the present utility model.

In the above figures: 1-saddle, 2-skeleton, 21-saddle pipe, 22-boss, 3-casting die, 31-pull rod, 32-first inflator, 33-second inflator, 34-third inflator, 41-second inflator upper seal, 42-second inflator lower seal, 43-third inflator upper seal, 44-third inflator lower seal, 51-hose, 52-inflating valve, 53-buckling pipe, 6-casting die, 7-fixing piece, 8-support, 91-handle, 92-antiskid cover, 101-first air chamber, 102-second air chamber, 103-third air chamber.

Detailed Description

The utility model will be further elucidated with reference to the drawings and to specific embodiments. The present utility model is not limited to these examples, although they are described in order to assist understanding of the present utility model. Specific structural and functional details disclosed herein are merely representative for purposes of describing example embodiments of the present utility model. This utility model may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.

According to a specific embodiment of the present disclosure, there is provided an inflation device suitable for tire inflation. Wherein fig. 1-8 illustrate one embodiment.

Referring to fig. 1 to 8, the inflation device for tire inflation is used for a bicycle, the bicycle comprises a saddle 1 and a framework 2, the framework 2 comprises a saddle pipe 21 with an inner hole, and the saddle 1 can be connected to the saddle pipe 21 in a flip-over manner so as to cover or expose the saddle pipe 21; the pumping device comprises a pulling and pressing part, a piston, a hose 51, a pumping nozzle 52 and a pressure release part 6.

The piston is connected to the bottom of the pulling and pressing piece and is inserted into an inner hole of the saddle pipe 21; one end of the hose 51 is communicated with the saddle pipe 21, the other end is communicated with the inflating nozzle 52, and the inflating nozzle 52 is used for locking an air inlet nozzle of a tire; the pressure release part 6 is communicated with the saddle pipe 21 and is used for adjusting the air pressure in the inner hole; when the saddle 1 is lifted from above the saddle tube 21, the pulling and pressing member can be pulled and pressed; when saddle 1 is reset, the position of the pulling element with respect to saddle tube 21 can be defined.

The engineering process of the pumping device can be summarized as follows: when inflation of the tyre of the bicycle is required, the saddle 1 can be lifted to expose the pulling-on member, in which case the pulling-on member can be held and then inflated. When the tire is fully inflated, if the saddle pipe 21 is filled with redundant gas, the pressure release part 6 can be opened, so that high-pressure gas in the inner hole is discharged through the pressure release part 6, and the inner hole pressure of the saddle pipe 21 is adjusted. After that, the pressure release piece 6 is reset, and finally the saddle 1 is reset, so that the tyre inflation work is realized.

Through the technical scheme, the structure of the bicycle body can be utilized to carry out optimal design under the condition that the original main structural characteristics of the bicycle are not changed at all. The cost of the inflating device added on the basis of the original manufacturing cost of the bicycle is lower than that of an equal independent inflator, and the bicycle is convenient to popularize and apply and popularize in a standardized way. In addition, the inflator device is integrated with the bicycle, so that the position of the inflator device is fixed, and the inflator device is not portable and can be detached, so that the inflator device is not easy to lose. The maintenance is convenient, and the bending strength of the saddle pipe can be enhanced to a certain extent. Because the inflating device is directly arranged on the bicycle, the inflating device does not occupy excessive use space and can improve the application range, thereby being suitable for any proper vehicle type.

In one embodiment provided by the present disclosure, the pulling member 3 includes a pulling rod 31, a first air tube 32, a second air tube 33, and a third air tube 34, which sequentially increase in diameter, and the air seal includes: a second upper cylinder seal 41 adapted to the third cylinder 34, a second lower cylinder seal 42 adapted to the bore of the saddle tube 21, a third upper cylinder seal 43 adapted to the third cylinder 34, and a third lower cylinder seal 44 adapted to the second cylinder 33;

one end of the third air cylinder 34 is provided with a third air cylinder upper seal 43, and the other end is provided with a third air cylinder lower seal 44; the upper end of the second air cylinder 33 is provided with a second air cylinder upper seal 41, and the other end is provided with a second air cylinder lower seal 42;

the pull rod 31 is inserted into the third inflator upper seal 43, the third inflator 34 and the second inflator upper seal 41 respectively and is inserted into the first inflator 32; the first air cylinder 32 is respectively inserted into the third air cylinder lower seal 44 and the second air cylinder lower seal 42;

the second inflator 33 is inserted into the third inflator lower seal 44; the second inflator lower seal 42 is arranged in the inner hole of the saddle pipe 21;

wherein a sealed space between the pull rod 31 and the third air cylinder 34 is formed as a first air chamber 101, a sealed space between the first air cylinder 32 and the second air cylinder 33 is formed as a second air chamber 102, and a sealed space between the pull rod 31 and the first air cylinder 32 is formed as a third air chamber 103;

when a pulling force is applied to the pull rod 31, gas can be sucked into the first gas chamber 101; when pressure is applied to the tie rod 31, the gas in the first gas chamber 101 can be primarily compressed and pushed into the second gas chamber 102; when pulling force is applied again to the pull rod 31, the primarily compressed gas can be made to enter the third air chamber 103; when pressure is again applied to the tie rod 31, the gas in the third gas chamber 103 can be compressed again and pushed into the hose 51.

To ensure the pumping efficiency, check valves are provided on the second cylinder upper seal 41, the second cylinder lower seal 42, the third cylinder upper seal 43, and the third cylinder lower seal 44 so that the gas can flow in one direction.

Based on the design of the pulling and pressing piece 3 and the air sealing piece, the working principle of the inflating device is as follows:

1. when the pull rod 31 is lifted, the pull rod 31 and the third air tube 34 are simultaneously lifted upward, and air is sucked into a closed space surrounded by the pull rod 31 and the third air tube 34 through the one-way intake valve (hereinafter, this space will be referred to as a first air chamber 101).

2. When the tension rod 31 is depressed, the air in the first air chamber 101 is compressed and pushed into the closed space surrounded by the first air tube 32 and the second air tube 33 (hereinafter, this space will be referred to as a second air chamber 102) as the space of the first air chamber 101 is gradually narrowed.

3. When the pull rod 31 is lifted again, the compressed air in the second air chamber 102 is sucked into a closed space (hereinafter, this space will be referred to as a third air chamber 103) formed by the pull rod 31 and the first air tube 32 being nested by the check valve.

4. When the pull rod 31 is depressed again, the space of the third air chamber 103 gradually decreases, and the compressed air in the third air chamber 103 is further compressed by the check valve and then pushed into the air outlet valve to flow into the air hose 51.

Because the space from the first air chamber 101 to the second air chamber 102 and then to the third air chamber 103 is gradually reduced, and the air is gradually compressed and the air pressure is also gradually increased due to the action of the one-way valve, compared with the traditional single-air-chamber inflator, the three-stage booster inflator can instantly compress and output the applicable air pressure in a shorter movement stroke, the stroke distance of the pull rod 31 required to be lifted and pressed is greatly shortened, the inflation efficiency is improved, and the pull rod 31 is convenient to be held by a person for inflation, and the operability is good.

Through the design structure, the air can be compressed step by step, so that the air compression efficiency is improved, and the action stroke of compressed air is greatly shortened. Therefore, compared with the traditional inflator with a single air chamber (air cylinder), the air pump can improve the compression efficiency of air under the condition of the same stroke, and improves the convenience and practicality of the air pump device.

In one embodiment provided by the present disclosure, the pumping device further comprises a handle 91, wherein the handle 91 is vertically connected to the pull rod, so as to facilitate holding the handle 91 for effective pumping, and simultaneously, facilitate the saddle 1 to press against the handle 91, thereby defining the position of the pull rod.

In the present disclosure, the anti-slip cover 92 is sleeved on the handle 91, so that friction force with the hand can be conveniently increased, and thus, quick inflation can be performed.

Specifically, the anti-slip handle is provided as a rubber sleeve. Based on the flexible characteristic of the rubber material, the friction force between the saddle and the hand can be ensured, a certain flexible buffer effect can be achieved to a certain extent, and the influence of the saddle 1 on the pulling and pressing piece is reduced.

In this disclosure, the first, second, and third such ordinal words are used to distinguish one element from another element, and are not necessarily sequential or important, and therefore should not be construed as limiting the technical features.

In the embodiment that this disclosure provided, the device of inflating still includes mounting 7, and mounting 7 staple bolt is equipped with the buckle in saddle pipe 21 on the mounting 7 to make hose 51 or inflating valve 52 joint in the buckle, thereby realize the fixed to hose 51 or inflating valve 52, have better practicality.

Specifically, the clasp is made of a rigid plastic material and is capable of slightly deforming when subjected to an external force, thereby snapping into the hose 51 or the inflation nozzle 52.

Specifically, the hose 51 is provided as a rubber tube so as to be bendable to accommodate tires of different positions.

Of course, the hose 51 may be provided as a flexible hose pipe, and a person skilled in the art may flexibly provide the hose according to actual needs.

In the present disclosure, one end of the hose 51 is provided with a buckling pipe 53, and an inner wall of the buckling pipe 53 is provided with an internal thread; the bottom of saddle pipe 21 is equipped with boss 22 with hole intercommunication, is equipped with the external screw thread that cooperates with the internal screw thread on the boss 22, detains tub 53 threaded connection in boss 22. By the arrangement, the buckling pipe 53 and the boss 22 can be conveniently disassembled and maintained, and the flexibility and the applicability are good.

In one embodiment provided by the present disclosure, saddle 1 is connected to saddle tube 21 by bracket 8, bracket 8 being clasped to saddle tube 21; the support 8 is provided with a front end and a rear end which are opposite, the front end of the support 8 is provided with a positioning hole, and the saddle 1 is inserted into the positioning hole through a pin shaft so as to be capable of overturning relative to the support 8; the rear end of the bracket 8 is provided with a clamping table, the saddle 1 is provided with a clamping groove matched with the clamping table, and the clamping groove is clamped on the clamping table. Thus, the locking between the saddle 1 and the clamping table can be released, so that the saddle 1 is lifted for inflation. After tyre inflation is completed, the saddle 1 can be reset, and the clamping groove on the saddle 1 is clamped in the clamping table, so that the position of the pulling and pressing piece is limited, and seating is convenient.

In one embodiment provided by the present disclosure, the pressure release member 6 is configured as a screw, the bottom of the saddle pipe 21 is provided with a screw hole, and the screw is inserted into the screw hole, thereby screwing out the screw to enable the inner hole to communicate with the atmosphere, thereby realizing pressure release.

In this disclosure, be equipped with sealed pad between screw rod and the saddle pipe 21, on the one hand can play better sealed effect, on the other hand, can avoid screw rod direct contact saddle pipe 21, and make both wearing and tearing each other, guaranteed the result of use and the life of screw rod to a certain extent from this.

Finally, it should be noted that the utility model is not limited to the alternative embodiments described above, but can be used by anyone in various other forms of products in the light of the present utility model. The above detailed description should not be construed as limiting the scope of the utility model, which is defined in the claims and the description may be used to interpret the claims.

Claims (10)

1. An inflation device suitable for tire inflation, which is used for a bicycle, and comprises a saddle (1) and a framework (2), wherein the framework (2) comprises a saddle pipe (21) with an inner hole, and the saddle (1) is connected to the saddle pipe (21) in a liftable way so as to cover or expose the saddle pipe (21); the inflating device comprises a pulling and pressing piece, an air sealing piece, a hose (51), an inflating nozzle (52) and a pressure release piece (6);

the air seal piece is connected to the pulling and pressing piece and is inserted into an inner hole of the saddle pipe (21); one end of the hose (51) is communicated with the saddle pipe (21), the other end of the hose is communicated with the inflating nozzle (52), and the inflating nozzle (52) is used for locking an air inlet nozzle of a tire;

the pressure release piece (6) is communicated with the saddle pipe (21) and is used for adjusting the air pressure in the inner hole;

when the saddle (1) is lifted from the upper part of the saddle pipe (21), the pulling and pressing piece can be pulled and pressed; when the saddle (1) is reset, the position of the pulling and pressing piece relative to the saddle pipe (21) can be limited.

2. The inflation device for tire puncture according to claim 1, wherein the pulling member (3) comprises a pulling rod (31), a first air cylinder (32), a second air cylinder (33) and a third air cylinder (34) which are sequentially increased in diameter; the gas seal includes: a second inflator upper seal (41) matched with the third inflator (34), a second inflator lower seal (42) matched with the inner hole of the saddle pipe (21), a third inflator upper seal (43) matched with the third inflator (34) and a third inflator lower seal (44) matched with the second inflator (33);

one end of the third air cylinder (34) is provided with the third air cylinder upper seal (43), and the other end is provided with the third air cylinder lower seal (44); a second air cylinder upper seal (41) is arranged at the upper end of the second air cylinder (33), and a second air cylinder lower seal (42) is arranged at the other end of the second air cylinder;

the pull rod (31) is respectively inserted into the third inflator upper seal (43), the third inflator (34) and the second inflator upper seal (41) and is inserted into the first inflator (32); the first air cylinder (32) is respectively inserted into the third air cylinder lower seal (44) and the second air cylinder lower seal (42);

the second air cylinder (33) is inserted into the third air cylinder lower seal (44); the second inflator lower seal (42) is arranged in the inner hole of the saddle pipe (21);

wherein a sealed space between the pull rod (31) and the third air cylinder (34) is formed as a first air chamber (101), a sealed space between the first air cylinder (32) and the second air cylinder (33) is formed as a second air chamber (102), and a sealed space between the pull rod (31) and the first air cylinder (32) is formed as a third air chamber (103);

when a pulling force is applied to the pull rod (31), gas can be sucked into the first gas chamber (101); when pressure is applied to the pull rod (31), the gas in the first gas chamber (101) can be initially compressed and extruded into the second gas chamber (102); when pulling force is applied to the pull rod (31) again, the primarily compressed gas can enter the third air chamber (103); when pressure is applied to the pull rod (31) again, the gas in the third gas chamber (103) can be compressed again and extruded into the hose (51).

3. The inflation device for tire puncture according to claim 2, wherein the second upper cylinder seal (41), the second lower cylinder seal (42), the third upper cylinder seal (43) and the third lower cylinder seal (44) are each provided with a one-way valve to enable one-way flow of gas.

4. The inflation device for tire inflation according to claim 2, further comprising a handle (91), the handle (91) being vertically connected to the pull rod (31).

5. The inflation device for tire inflation according to claim 4, wherein the handle (91) is sleeved with an anti-slip sleeve (92).

6. The inflation device for tire inflation according to claim 1, further comprising a fixing member (7), wherein the fixing member (7) is hooped to the saddle pipe (21), and a buckle is arranged on the fixing member (7) so that the hose (51) or the inflation nozzle (52) is clamped to the buckle.

7. The inflation device for tire inflation according to claim 1, wherein one end of the hose (51) is provided with a buckling tube (53), and an inner wall of the buckling tube (53) is provided with an inner thread; the bottom of saddle pipe (21) be equipped with boss (22) of hole intercommunication, be equipped with on boss (22) with internal thread matched with external screw thread, detain pipe (53) threaded connection in boss (22).

8. The inflation device for tire inflation according to claim 1, wherein the saddle (1) is connected to the saddle tube (21) by a bracket (8), the bracket (8) being clasped to the saddle tube (21);

the saddle (1) is inserted into the positioning hole through a pin shaft so as to be capable of overturning relative to the bracket (8); the rear end of the support (8) is provided with a clamping table, the saddle (1) is provided with a clamping groove matched with the clamping table, and the clamping groove is clamped in the clamping table.

9. The inflation device for tire inflation according to claim 1, wherein the pressure release member (6) is configured as a screw, a screw hole is provided at the bottom of the saddle tube (21), and the screw is inserted into the screw hole.

10. The inflation device for tire inflation according to claim 9, wherein a gasket is provided between the screw and the saddle tube (21).

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