CN216842096U

CN216842096U - Portable inflator

Info

Publication number: CN216842096U
Application number: CN202220576793.1U
Authority: CN
Inventors: 朱剑勇
Original assignee: Shanghai Shengao Technology Co ltd
Current assignee: Shanghai Shengao Technology Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-06-28
Anticipated expiration: 2032-03-16

Abstract

A portable inflator comprises an air adding nozzle, an air hose, a barometer, an outer cylinder, an inner cylinder, an air adding piston, an air hose piston, a one-way air valve, a sealing ring, a sealing cover and a fixed seat; the lower end of the air adding nozzle is arranged at one end of the air hose, the other end of the air hose is sleeved on the hollow connecting seat of the air hose piston, and the air hose piston, the air hose and the air adding nozzle are sleeved in the inner cylinder; one side end of the sealing cover is arranged on one side of the upper end of the inner cylinder, and the sealing cover is arranged on the inner cylinder; the barometer is arranged at the side end of the inner cylinder; the one-way air valve is arranged at the inner lower end of the inner cylinder, and the O-shaped sealing ring is arranged at the lower part of the one-way air valve positioned at the inner cylinder; the outer barrel is sleeved outside the lower end of the inner barrel, the air-entrapping piston is installed on the fixed seat, the fixed seat is installed at the lower end of the outer barrel, and an air inlet hole is formed in the junction position of the outer barrel and the fixed seat. This novel whole equipment is compacter, pleasing to the eye, has brought the facility for the user, and has improved product market competition. Based on the above, this is novel has good application prospect.

Description

Portable inflator

Technical Field

The utility model relates to a gas filling equipment technical field, especially a portable inflater.

Background

The manual inflator is widely used air-filling equipment, and mainly used for inflating electric bicycles, ball sports goods and the like. The existing inflator is limited by the structure, and the air adding nozzle, the air hose and the inflator main body are of a separating structure, so that the overall equipment is not attractive and compact, and inconvenience is brought to carrying and storage of a user. Along with the technology of industrial products is more and more mature, the people-oriented function of the product is undoubtedly the prerequisite of getting the market first, and based on the aforesaid, provide one kind and not only have the function of aerifing, can also make things convenient for air cock and air hose to accomodate, wholly more pleasing to the eye, it is especially necessary to use the more convenient inflater.

SUMMERY OF THE UTILITY MODEL

In order to overcome current manual inflater because of the structure limit, there is whole pleasing to the eye compactness, can give carrying and accomodating of user and bring inconvenient drawback, the utility model provides a not only have the function of ordinary inflater, can also conveniently realize adding accomodating and pulling out of air cock and air hose around the use, realized that whole equipment is compacter from this, pleasing to the eye, brought the facility for the user, and improved a portable inflater of product market competition.

The utility model provides a technical scheme that its technical problem adopted is:

a portable inflator comprises an air adding nozzle, an air hose, a barometer, an outer cylinder, an inner cylinder, an air adding piston, an air hose piston, a one-way air valve, an O-shaped sealing ring, a sealing cover and a fixing seat; the air hose piston, the air hose and the air adding nozzle are sleeved in the inner cylinder; the sealing cover is arranged on the inner cylinder; the barometer is arranged at the side end of the inner cylinder; the one-way air valve is arranged at the lower end in the inner cylinder, and the O-shaped sealing ring is arranged at the lower part of the one-way air valve positioned in the inner cylinder; the outer barrel is sleeved outside the lower end of the inner barrel, a limit ring is arranged at the inner upper end of the outer barrel, the air-entrapping piston is installed on the fixed seat, the fixed seat is installed at the lower end of the outer barrel, an air inlet hole is formed in the junction position of the outer barrel and the fixed seat, and the air inlet hole is located at the lower end of the air-entrapping piston.

Further, the outer diameter of the O-shaped sealing ring is larger than the inner diameter of the outer cylinder.

Further, the inner diameter of the inner cylinder is smaller than the outer diameter of the air hose piston and larger than the outer diameter of the air hose.

Furthermore, the air-entrapping piston is a leather cup, the outer diameter of the upper end of the leather cup is larger than that of the lower end of the leather cup, the bowl part of the leather cup is positioned at the upper end of the leather cup, and the lower end of the leather cup is in contact with the upper end of the fixing seat.

Further, the inner diameter of a limiting ring at the upper end of the outer barrel is smaller than the outer diameter of the upper end of the fixing seat.

The utility model has the advantages that: the novel inflating device is particularly suitable for inflating bicycles, electric bicycles, inflating balls and the like, the air nozzle and the air hose are pushed downwards to be positioned in the inner barrel and sealed through the sealing cover before use, and the whole device is more compact and attractive. When in use, the air nozzle and the air hose are pulled, and the outer barrel is pulled up and down by hands to inflate the equipment needing inflation. This is novel to have brought the facility for the user, and has improved product market competition. Based on the above, this is novel has good application prospect.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the novel overall sectional plane structure.

Fig. 2 is a schematic diagram of the overall plane structure of the present invention.

Fig. 3 is a schematic diagram of a partial top plan structure of the present invention.

Detailed Description

As shown in fig. 1, 2 and 3, the portable inflator comprises an air adding nozzle 1, an air hose 2, a barometer 3, an outer cylinder 4, an inner cylinder 5, an air adding piston 6, an air hose piston 7, a one-way air valve 8, an O-shaped rubber sealing ring 9 and a sealing cover 10; the air inlet pipe at the lower end of the air adding nozzle 1 is tightly sleeved at one side end of the air hose 2, the middle part of the upper end of the air hose piston 7 is provided with an integrally formed cylindrical hollow connecting seat 71, the other side end of the air hose 2 is tightly sleeved on the outer side of the connecting seat 71, and the air hose piston 7, the air hose 2 and the air adding nozzle 1 are sleeved in the inner barrel 5 from bottom to top; the upper end and the lower end of the inner cylinder 5 are of an open structure, a cylindrical outer shell 51 with the upper end and the lower end of the open structure is installed on the outer side of the middle part of the inner cylinder 5 through threads, one side end of the sealing cover 10 is connected and installed on one side of the upper end of the outer shell 51 through a flexible plastic belt 101, and the lower end of the sealing cover 10 covers the inner upper end of the outer shell 51; the upper part of the right side end of the corresponding position of the inner cylinder 5 and the outer shell 51 is provided with a screw hole communicated with the inside of the inner cylinder, and the barometer 3 is screwed into the screw hole through the external thread of the air inlet pipe and is arranged outside the right side end of the inner cylinder 5 and the outer shell 51; the lower end of the inner cylinder 5 is internally provided with internal threads, the one-way air valve 8 is screwed into the internal lower end internal threads of the inner cylinder 5 through external threads at the outer end of the one-way air valve 8 and is arranged at the inner lower part of the inner cylinder 5, a groove 52 is annularly distributed on the outer side of the one-way air valve 8 below the inner cylinder 5, and an O-shaped sealing ring 9 is tightly sleeved in the groove 52; the outer cylinder 4 is sleeved outside the lower end of the inner cylinder, a limiting ring 41 with the inner diameter slightly larger than the outer diameter of the inner cylinder by 1 mm is installed at the inner upper end of the outer cylinder 4 through threads, internal threads are arranged at the inner lower end of the outer cylinder 4, the middle of the air-entrapping piston 6 is installed on the middle of a fixing seat 11 (a fixing screw 111 is arranged at the middle of the fixing seat 11, the fixing screw 111 penetrates through the middle of the air-entrapping piston to fix the air-entrapping piston through a nut), the fixing seat 11 is screwed into the internal threads at the lower end of the outer cylinder 4 through external threads and installed at the lower end of the outer cylinder 4, an air inlet hole 12 is formed in the junction position of the upper ends of the outer cylinder 4 and the fixing seat 11, and the air inlet hole 12 is located at the lower end of the air-entrapping piston 6.

As shown in fig. 1, 2 and 3, the inner diameter of the O-ring 9 (sealing the air between the inner side of the outer cylinder and the outer end of the inner cylinder) is 2 mm smaller than the inner diameter of the groove 52, and the outer diameter is 2 mm larger than the inner diameter of the outer cylinder 4. The inner diameter of the inner upper end (limiting the upward movement of the piston 7) of the inner cylinder 5 is less than 5 mm of the outer diameter of the air hose piston 7 and greater than the outer diameter of the air hose 2, and the outer diameter of the air hose rubber piston 7 is slightly greater than 1 mm of the inner diameter below the inner upper end of the inner cylinder 5 (ensuring the sealing between the rubber piston 7 and the inner cylinder). The air-entrapping piston 6 is a leather cup (the outer diameter of the upper end is 2 mm larger than the inner diameter of the outer barrel 4), the outer diameter of the upper end of the leather cup 6 is larger than the outer diameter of the lower end of the leather cup, the bowl part of the leather cup 6 is positioned at the upper end, and the lower end of the leather cup 6 is contacted with the upper end of the fixed seat 11. The inner diameter of the limiting ring 41 at the upper end of the outer cylinder 4 is less than the outer diameter of the upper end of the fixed seat 11 by 3 mm.

As shown in figures 1, 2 and 3, the novel inflatable bag is particularly suitable for being used for inflating bicycles, electric bicycles, inflatable balls and the like, before use, a user pushes the air adding nozzle 1, the air hose 2 and the air hose piston 7 downwards to be positioned in the inner barrel 5 and sealed through the sealing cover 10, the whole equipment is more compact and attractive, and the carrying is more convenient. When air is added, the sealing cover 10 is opened, the air adding nozzle 1, the air hose 2 and the air hose piston 7 are pulled out upwards and outwards by hands, the upper end of the air hose piston 7 is contacted with the upper end in the inner cylinder 5 to play a limiting and sealing role, then the air adding nozzle 1 (which is completely consistent with the air nozzle of a common inflator) is sleeved on the air nozzle of a vehicle and the like, then a user repeatedly pulls the outer cylinder 4 up and down by one hand (holds the outer shell 51 by the other hand), when the outer cylinder 4 is pulled down, external air enters the lower end of the leather cup 6 through the air inlet 12 and enters the outer cylinder 4, when the outer cylinder 4 is pushed upwards, the air entering the outer cylinder 4 at the lower end of the O-shaped ring 9 (with the sealing function) on the leather cup 6 is compressed and enters the inner cylinder 5 through the one-way air valve 8, then enters the tire of the vehicle through the hollow connecting seat 71, the air hose 2 and the air adding nozzle 1, and the processes are continuously reciprocated to fill enough compressed air into the inner tire of the vehicle and the like, the user can learn the concrete atmospheric pressure of joining in the vehicle inner tube of a tyre etc. through observing barometer data 3, takes off behind the atmospheric pressure enough and adds air cock 1 and no longer the gassing, then accomodates and adds air cock 1 and gas hose 2, gas hose piston 7, just accomplishes whole gassing process after covering sealed lid 11. This is novel to have brought the facility for the user, and has improved product market competition.

The basic principles and essential features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of being embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, the embodiments do not include only one independent technical solution, and such description is only for clarity, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A portable inflator comprises an air adding nozzle, an air hose, a barometer, an outer cylinder, an inner cylinder, an air adding piston, an air hose piston, a one-way air valve, an O-shaped sealing ring, a sealing cover and a fixing seat; the air hose piston, the air hose and the air adding nozzle are sleeved in the inner cylinder; the sealing cover is arranged on the inner cylinder; the barometer is arranged at the side end of the inner cylinder; the one-way air valve is arranged at the lower end in the inner cylinder, and the O-shaped sealing ring is arranged at the lower part of the one-way air valve positioned in the inner cylinder; the outer barrel is sleeved outside the lower end of the inner barrel, a limit ring is arranged at the inner upper end of the outer barrel, the air-entrapping piston is installed on the fixed seat, the fixed seat is installed at the lower end of the outer barrel, an air inlet hole is formed in the junction position of the outer barrel and the fixed seat, and the air inlet hole is located at the lower end of the air-entrapping piston.

2. The portable pump according to claim 1, wherein the O-ring has an outer diameter larger than an inner diameter of the outer cylinder.

3. The portable pump according to claim 1, wherein the inner diameter of the inner cylinder is smaller than the outer diameter of the air hose piston and larger than the outer diameter of the air hose.

4. The portable inflator according to claim 1, wherein the air charging piston is a cup, an outer diameter of an upper end of the cup is larger than an outer diameter of a lower end of the cup, a bowl portion of the cup is located at the upper end, and the lower end of the cup is in contact with an upper end of the fixing seat.

5. The portable inflator according to claim 1, wherein an inner diameter of the stopper ring at the upper end of the outer cylinder is smaller than an outer diameter of the upper end of the fixing base.