CN209179961U - Piston type air-inflator - Google Patents
Piston type air-inflator Download PDFInfo
- Publication number
- CN209179961U CN209179961U CN201821766830.5U CN201821766830U CN209179961U CN 209179961 U CN209179961 U CN 209179961U CN 201821766830 U CN201821766830 U CN 201821766830U CN 209179961 U CN209179961 U CN 209179961U
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- piston
- cavity
- closed
- cylinder
- air
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Abstract
A kind of piston type air-inflator provided by the utility model, the bowl bodies including cylinder, piston rod, piston and hard；The opposite end closed at one end and another of the cylinder forms an opening, and a check gas nozzle is provided on its closed end；The piston is slidably mounted in cylinder；Closed air cavity is formed between the piston and cylinder；The bowl bodies are fastened on piston base, and closed cavity is formed between piston；Airflow channel is provided in the side wall of the bowl bodies；The airflow channel is upwardly extended through piston；The transom window being connected to air cavity is provided at the top of the cavity, bottom is provided with the perforation being connected to airflow channel；Check part is installed in the cavity；The check part is to open or closed perforation；The check gas nozzle is to the gas that is discharged in air cavity；It is connect in the piston rod insertion cylinder with piston.Piston type air-inflator provided by the utility model prolongs the service life convenient for improving air-tightness.
Description
Technical field
The utility model relates to inflator fields, and in particular to a kind of piston type air-inflator.
Background technique
As shown in figure 3, the structure of existing inflator includes cylinder and piston rod；One end of the piston rod is equipped with tool
Flexible leather cup 6, and piston rod is equipped in one end insertion cylinder of leather cup.The leather cup to seal in inflator,
It is to play sealing process by the elasticity of itself material.Pull up leather cup, compressive deformation on the outside of leather cup, the leather cup and cylinder point
From gas enters in cylinder；It is pressed downward leather cup, the leather cup is contradicted by compression swelling in cylinder inboard wall, closed barrel, by gas
It is discharged along gas outlet.After a period of use, leather cup is easily flipped, inflator air-tightness existing inflator by abrasion
It reduces.
Utility model content
For the defects in the prior art, piston type air-inflator provided by the utility model extends convenient for improving air-tightness
Service life.
A kind of piston type air-inflator provided by the utility model, including the bowl-shape of cylinder, piston rod, piston and hard
Body；The opposite end closed at one end and another of the cylinder forms an opening, and a check gas nozzle is provided on its closed end；It is described
Piston is slidably mounted in cylinder；Closed air cavity is formed between the piston and cylinder；The bowl bodies are fastened on work
Bottom is filled in, and forms closed cavity between piston；Airflow channel is provided in the side wall of the bowl bodies；The airflow channel
It upwardly extends through piston；It is provided with the transom window being connected to air cavity at the top of the cavity, bottom is provided with to be connected to airflow channel
Perforation；Check part is installed in the cavity；The check part is to open or closed perforation；The check gas nozzle is to arrange
Gas in outlet chamber；It is connect in the piston rod insertion cylinder with piston.
Optionally, the check part is movable balls；The bottom of the cavity is provided with spherical；The perforation is arranged in ball
The bottom in shape face；The movable balls are located in cavity, and are connected to the upper closed perforation of perforation.
Optionally, the axial hole being connected to cavity is provided at the center of the piston；In the piston rod insertion axial hole
It is connect with piston thread；The diameter of the axial hole is greater than the diameter of movable balls.
Optionally, the bottom of the piston rod radially convexes into closed boss；On the bottom surface of the closed boss
It is equipped with rubber bodies flexible.
It optionally, further include cover；The cover is fastened on closed opening at the top of cylinder；The center of the cover is provided with logical
Hole；Several air inlets being connected to cylinder are provided on the cover；The piston rod passes through in through-hole insertion cylinder and piston
Connection.
As shown from the above technical solution, the utility model has the beneficial effects that a kind of piston type provided by the utility model is beaten
Inflator, the bowl bodies including cylinder, piston rod, piston and hard；The opposite end closed at one end and another of the cylinder is formed
One opening, and a check gas nozzle is provided on its closed end；The piston is slidably mounted in cylinder；The piston and cylinder
Closed air cavity is formed between body；The bowl bodies are fastened on piston base, and closed cavity is formed between piston；It is described
Airflow channel is provided in the side wall of bowl bodies；The airflow channel is upwardly extended through piston；Be provided at the top of the cavity with
The transom window of air cavity connection, bottom is provided with the perforation being connected to airflow channel；Check part is installed in the cavity；The check part
To open or closed perforation；The check gas nozzle is to the gas that is discharged in air cavity；In piston rod insertion cylinder with
Piston connection.Piston type air-inflator provided by the utility model prolongs the service life convenient for improving air-tightness.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar
Element or part are generally identified by similar appended drawing reference.In attached drawing, each element or part might not be according to actual ratios
It draws.
Fig. 1 is the main view of the utility model；
Fig. 2 is enlarged drawing at A in Fig. 1；
Fig. 3 is the structural schematic diagram of existing inflator.
Appended drawing reference:
1- cylinder, 2- piston rod, 3- piston, 4- bowl bodies, 5- cover, 6- leather cup, 11- opening, 12- check gas nozzle, 21-
Closed boss, 31- air cavity, 32- axial hole, 41- cavity, 42- airflow channel, 211- rubber bodies, 311- spherical, 411- gas
Window, 412- perforation, 413- movable balls.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solutions of the utility model.Following embodiment is only
For clearly illustrating the technical solution of the utility model, therefore it is only used as example, and it is originally practical to cannot be used as a limitation limitation
Novel protection scope.
A kind of piston type air-inflator provided in this embodiment referring to FIG. 1-2, including cylinder 1, piston rod 2, piston 3 with
And the bowl bodies 4 of hard；The opposite end closed at one end and another of the cylinder 1 forms an opening 11, and is arranged on its closed end
There is a check gas nozzle 12；The piston 3 is slidably mounted in cylinder 1；It is formed between the piston 3 and cylinder 1 closed
Air cavity 31；The bowl bodies 4 are fastened on 3 bottom of piston, and closed cavity 41 is formed between piston 3；The bowl bodies 4
Airflow channel 42 is provided in side wall；The airflow channel 42 is upwardly extended through piston 3；The top of the cavity 41 is provided with and gas
The transom window 411 that chamber 31 is connected to, bottom is provided with the perforation 412 being connected to airflow channel 42；Check part is installed in the cavity 41；
The check part is to open or closed perforation；The check gas nozzle 12 is to the gas that is discharged in air cavity 31；The piston
Bar 2 is inserted into cylinder and connect with piston 3.When pulling up piston 3 by piston rod 2, the air pressure in air cavity 31 is reduced, to lead
The air pressure in cavity 41 is caused to reduce.It is opened and is perforated by check part, gas flows to cavity 41 by perforating from airflow channel, then leads to
The transom window 411 crossed in cavity 41 enters in air cavity 31.Then, by the closed perforation of check part, piston 3, air cavity 31 are pressed downward
Interior air pressure increases, and gas is flowed out along check gas nozzle, is inflated.Piston type air-inflator provided in this embodiment, convenient for improving
Air-tightness prolongs the service life.
As further improvement to above-mentioned technical proposal, the check part is movable balls 413；The bottom of the cavity 31
It is provided with spherical 311；The bottom of spherical 311 is arranged in the perforation 412；The movable balls 413 are located in cavity 41, and
It is connected to the upper closed perforation 412 of perforation.
When pulling up piston 3, the air pressure in air cavity 31 is reduced, and is reduced so as to cause the air pressure in cavity 41.The work
Dynamic ball 413 floats to 41 top of cavity, opens perforation 412, gas flows to cavity 41 by perforating from airflow channel, then passes through sky
Transom window 411 in chamber 41 enters in air cavity 31.When being pressed downward piston 3, the air pressure in air cavity 31 is increased, so as to cause cavity 41
Interior air pressure increases.The movable balls 413 are pressed in perforation 412, and closed perforation 412, gas is flowed out along check gas nozzle.Knot
Structure is simple, convenient for opening or closed perforation 412.
As further improvement to above-mentioned technical proposal, the axis being connected to cavity 41 is provided at the center of the piston 3
To hole 32；The piston rod 2 is inserted into axial hole and connect with piston thread；The diameter of the axial hole 32 is greater than the straight of movable balls
Diameter.Under original state, the piston rod 2 is inserted into axial hole and connect with piston thread, closed axial hole 32.When needing replacing work
It is described to unload lower piston rod 2 when dynamic ball 413, axial hole 32 is opened, then movable balls 413 are taken out along axial hole 32.It is conveniently replaceable work
Dynamic ball 413.
As further improvement to above-mentioned technical proposal, the bottom of the piston rod 2 radially convexes into closed
Boss 21；It is equipped on the bottom surface of the closed boss 21 with rubber bodies 211 flexible.The closed boss 21 is by rubber bodies
211 are extruded in 32 top of axial hole, are convenient for closed axial hole 32, improve air-tightness.
It further include cover 5 as further improvement to above-mentioned technical proposal；It is close that the cover 5 is fastened on 1 top of cylinder
Make and break mouth 11；The center of the cover 5 is provided with through-hole；Several air inlets being connected to cylinder are provided on the cover；It is described
Piston rod 2, which passes through, to be connect in through-hole insertion cylinder with piston.Through-hole and cylinder 1 on the cover 5 are coaxially disposed；The piston
Bar 2 passes through through-hole and connect with 5 gap of cover, and can slide along the vertical direction.Facilitate ensuring that piston rod 2 and cylinder 1 are coaxially disposed,
It is easy to use.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type, should all cover in the claim of the utility model and the range of specification.
Claims (5)
1. a kind of piston type air-inflator, it is characterised in that: including the bowl-shape of cylinder (1), piston rod (2), piston (3) and hard
Body (4)；The opposite end closed at one end and another of the cylinder (1) forms an opening (11), and it is inverse to be provided with one on its closed end
Only gas nozzle (12)；The piston (3) is slidably mounted in cylinder (1)；It is formed between the piston (3) and cylinder (1) close
The air cavity (31) closed；The bowl bodies (4) are fastened on piston (3) bottom, and form closed cavity between piston (3)
(41)；Airflow channel (42) are provided in the side wall of the bowl bodies (4)；The airflow channel (42) upwardly extends through piston
(3)；The transom window (411) being connected to air cavity (31) is provided at the top of the cavity (41), bottom is provided with airflow channel (42) even
Logical perforation (412)；Check part is installed in the cavity (41)；The check part is to open or closed perforation；It is described
Check gas nozzle (12) is to the gas that is discharged in air cavity (31)；It is connect in piston rod (2) the insertion cylinder with piston (3).
2. piston type air-inflator according to claim 1, it is characterised in that: the check part is movable balls (413)；It is described
The bottom of cavity (41) is provided with spherical (311)；Bottom of perforation (412) setting in spherical (311)；The activity
Ball (413) is located in cavity (41), and is connected to the upper closed perforation (412) of perforation.
3. piston type air-inflator according to claim 2, it is characterised in that: be provided at the center of the piston (3) and sky
The axial hole (32) of chamber (41) connection；It is connect in piston rod (2) the insertion axial hole with piston thread；The axial hole (32)
Diameter be greater than movable balls diameter.
4. piston type air-inflator according to claim 3, it is characterised in that: the bottom of the piston rod (2) radially to
Evagination forms closed boss (21)；It is equipped on the bottom surface of the closed boss (21) with rubber bodies flexible (211).
5. piston type air-inflator according to claim 1, it is characterised in that: further include cover (5)；Cover (5) button
Close the closed opening (11) at the top of cylinder (1)；The center of the cover (5) is provided with through-hole；Be provided on the cover several with
The air inlet of cylinder connection；The piston rod (2), which passes through, to be connect in through-hole insertion cylinder with piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821766830.5U CN209179961U (en) | 2018-10-30 | 2018-10-30 | Piston type air-inflator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821766830.5U CN209179961U (en) | 2018-10-30 | 2018-10-30 | Piston type air-inflator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209179961U true CN209179961U (en) | 2019-07-30 |
Family
ID=67362579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821766830.5U Expired - Fee Related CN209179961U (en) | 2018-10-30 | 2018-10-30 | Piston type air-inflator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209179961U (en) |
-
2018
- 2018-10-30 CN CN201821766830.5U patent/CN209179961U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190730 Termination date: 20201030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |