CN208870756U - A kind of piston of the two-way outlet for inflator - Google Patents
A kind of piston of the two-way outlet for inflator Download PDFInfo
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- CN208870756U CN208870756U CN201821585323.1U CN201821585323U CN208870756U CN 208870756 U CN208870756 U CN 208870756U CN 201821585323 U CN201821585323 U CN 201821585323U CN 208870756 U CN208870756 U CN 208870756U
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- air inlet
- piston
- inflator
- discharge chamber
- gas outlet
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Abstract
The utility model provides a kind of piston of two-way outlet for inflator, belongs to field of mechanical technique.This piston for being used for the two-way outlet of inflator is set in inflator cylinder, including upper cover and lower cover, it is formed with inlet plenum and discharge chamber between upper cover and lower cover and inlet plenum and discharge chamber be mutually indepedent and sealed set, air inlet pipe is threaded on upper lid, it is equipped with escape pipe in air inlet pipe and escape pipe is inserted on upper lid, the air passage being connected with inlet plenum is formed between air inlet pipe and escape pipe, escape pipe is connected with discharge chamber, enterprising port and upper gas outlet are offered on upper lid, lower air inlet and lower gas outlet are offered on lower lid, in enterprising port, upper gas outlet, breathing piece is equipped at lower air inlet and gas outlet, breathing piece in enterprising port and lower air inlet is located on the outside of inlet plenum, breathing piece in lower air inlet and air outlet is on the inside of discharge chamber.The utility model has the advantages that structure is simple, practical and convenient.
Description
Technical field
The utility model belongs to field of mechanical technique, and in particular to a kind of piston of the two-way outlet for inflator.
Background technique
Existing inflator piston can only unidirectional outlet, time-consuming and laborious, low efficiency.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, and it is simple, practical to propose a kind of structure
It is conveniently used for the piston of the two-way outlet of inflator.
The purpose of this utility model can be realized by the following technical scheme: a kind of work of the two-way outlet for inflator
Plug, be set in inflator cylinder, which is characterized in that including upper cover and lower cover, be formed between upper cover and lower cover inlet plenum and
Discharge chamber and inlet plenum and discharge chamber be mutually indepedent and sealed set, air inlet pipe is threaded on upper lid, in air inlet pipe
It is equipped with escape pipe and escape pipe is inserted on lid, the ventilation being connected with inlet plenum is formed between air inlet pipe and escape pipe
Road, escape pipe are connected with discharge chamber, and the enterprising port and two connection outlets of two connection inlet plenums are offered on upper lid
The upper gas outlet of room offers the lower air inlet of two connection inlet plenums and the lower outlet of two connection discharge chambers on lower lid
Mouthful, it is equipped with breathing piece at enterprising port, upper gas outlet, lower air inlet and gas outlet, is in enterprising port and lower air inlet
Breathing piece be located on the outside of inlet plenum, the breathing piece in lower air inlet and air outlet be in discharge chamber inside.
In the piston of the above-mentioned two-way outlet for inflator, breathing piece includes support column and diaphragm seal, is being supported
There is annular lug on column, offer several fixation holes in upper cover and lower cover, support column be arranged in relative to fixation hole
Place, the outer diameter that annular lug and diaphragm seal are located at fixation hole two sides and annular lug are greater than the aperture of fixation hole.
In the piston of the above-mentioned two-way outlet for inflator, the outer wall of upper cover is equipped with ring type seal.
In the piston of the above-mentioned two-way outlet for inflator, there is welding groove in lower cover upper surface, on upper lid
With snap ring and snap ring is by being ultrasonically welded in welding groove.
Compared with prior art, the utility model has the advantage that
1, this piston includes upper cover and lower cover, and upper cover and lower cover are welded by the region of welding groove by ultrasonic wave, made
The two becomes an entirety, and welding groove can be divided into automatically internal piston inlet plenum and discharge chamber, and two gas chambers are independent simultaneously
And seal, respectively there are two air inlet and two gas outlets on the discharge chamber and inlet plenum of the upper and lower cover of piston, in air inlet and
It will be installed eight breathing pieces on gas outlet.Breathing piece plays the role of check valve, and for controlling the disengaging of air, discharge chamber is exhaled
Suction piece can allow air to be exported by interior, and the breathing piece of inlet plenum can allow air internally to be inputted by outside.
2, breathing piece includes support column and diaphragm seal, the corresponding upper and lower air inlet of diaphragm seal energy sealing blocking or upper and lower
Gas outlet has annular lug on the support columns, several fixation holes is offered in upper cover and lower cover, support column is arranged in phase
For fixation hole at, annular lug and diaphragm seal are located at fixation hole two sides and the outer diameter of annular lug is greater than fixation hole
Aperture.Breathe piece by support column pass through fixation hole after, by annular lug can automatic spacing, will not mark and fall.Eight
Breathing piece is that uniform sizes are conducive to installation assembly, it is not easy to obscure error, warehousing pressure is smaller.
3, ring type seal is equivalent to a normally closed valve, can prevent during inflating above and below piston
Cross-ventilation.
Detailed description of the invention
Fig. 1 is structural schematic diagram when the utility model is installed in inflator cylinder.
Fig. 2 is the structural schematic diagram of the utility model.
Fig. 3 is the configuration schematic diagram of the utility model.
Fig. 4 is the structural schematic diagram of lower cover in the utility model.
Fig. 5 is the structural schematic diagram of lower cover in the utility model.
Fig. 6 is the structural schematic diagram that piece is breathed in the utility model.
In figure, 1, upper cover；11, enterprising port；12, upper gas outlet；13, snap ring；2, lower cover；21, lower air inlet；22, under
Gas outlet；23, welding groove；3, inlet plenum；4, discharge chamber；5, air inlet pipe；6, escape pipe；7, air passage；8, ring type seal；9,
Breathe piece；91, support column；92, diaphragm seal；93, annular lug；10, inflator cylinder.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figures 1 to 6, the piston of this two-way outlet for being used for inflator, is set in inflator cylinder 10, including
Upper cover 1 and lower cover 2, are formed with inlet plenum 3 and discharge chamber 4 between upper cover 1 and lower cover 2 and inlet plenum 3 and discharge chamber 4 are mutually indepedent
And sealed set, it is threaded with air inlet pipe 5 in upper cover 1, escape pipe 6 is equipped in air inlet pipe 5 and escape pipe 6 is inserted in
In upper cover 1, the air passage 7 being connected with inlet plenum 3, escape pipe 6 and 4 phase of discharge chamber are formed between air inlet pipe 5 and escape pipe 6
Connection is opened up in upper cover 1 there are two the enterprising port 11 of connection inlet plenum 3 and the upper gas outlet 12 of two connection discharge chambers 4,
The lower air inlet 21 of connection inlet plenum 3 and the lower gas outlet 22 of two connection discharge chambers 4 there are two being opened up on lower cover 2, upper
It is equipped with breathing piece 9 at air inlet 11, upper gas outlet 12, lower air inlet 21 and gas outlet, is in enterprising port 11 and lower air inlet
The breathing piece 9 of mouth 21 is located at 3 outside of inlet plenum, and the breathing piece 9 in lower air inlet 21 and gas outlet is in 4 inside of discharge chamber,
The outer wall of upper cover 1 be equipped with ring type seal 8,2 upper surface of lower cover have welding groove 23, in upper cover 1 have snap ring 13 and
Snap ring 13 is by being ultrasonically welded in welding groove 23.
Breathing piece 9 includes support column 91 and diaphragm seal 92, and diaphragm seal 92 can the corresponding upper and lower air inlet 21 of sealing blocking
Or upper and lower gas outlet 22, there is annular lug 93 on support column 91, offer several fixations in upper cover 1 and lower cover 2
Hole, support column 91 be arranged in relative to fixation hole at, annular lug 93 and diaphragm seal 92 are located at fixation hole two sides and ring
The outer diameter of shape convex block 93 is greater than the aperture of fixation hole.Piece 9 is breathed through support column 91 after passing through fixation hole, by annular lug 93
Can automatic spacing, will not mark and fall.Eight breathing pieces 9 are that uniform sizes are conducive to installation assembly, it is not easy to obscure error,
Warehousing pressure is smaller.
This piston includes upper cover 1 and lower cover 2, and upper cover 1 and lower cover 2 are welded by ultrasonic wave by the region of welding groove 23
It connects, so that the two is become an entirety, and welding groove 23 can be divided into automatically internal piston inlet plenum 3 and discharge chamber 4, two gas
It room independence and seals.
There are two air inlet and two gas outlets respectively on the discharge chamber 4 and inlet plenum 3 of the upper and lower cover 2 of piston, in air inlet
It will be installed eight breathing pieces 9 on mouth and gas outlet.Breathing piece 9 plays the role of check valve, for controlling the disengaging of air, outlet
The breathing piece 9 of room 4 can allow air to be exported by interior, the breathing piece 9 of inlet plenum 3 can allow air by it is external internally
Input.
Ring type seal 8 is equivalent to a normally closed valve, can prevent during inflating above and below piston
Cross-ventilation.
It, can be in a cylindrical enclosure space (i.e. in inflator cylinder 10), internal compression in pistons work
Air is transmitted by piston to delivery outlet, at the same external air by piston to the process transmitted inside stack shell.
When piston pull-up, the piston upper air in inflator cylinder 10 is compressed, and pressure becomes larger, because of the original of pressure
Because the air of top can flow downward, but due to the barrier of ring type seal 8, the air of top can not directly be by convection into lower section,
The air of top makes the breathing piece 9 at upper gas outlet 12 to moving inside discharge chamber 4 by air pressure, makes on inflator cylinder 10
Side space is communicated with discharge chamber 4, so that the air of top can be by two breathing pieces 9 of 4 top of piston discharge chamber (on i.e.
Breathing piece 9 at gas outlet 12) enter discharge chamber 4, and be output to the outside by the discharge chamber 4 of piston into escape pipe 6.Simultaneously
After piston pull-up, the spatial volume of 10 lower section of inflator cylinder becomes larger, and air pressure is to become smaller, so that external air can lead to
The air passage 7 between air inlet pipe 5 and escape pipe 6 is crossed, the inlet plenum 3 of piston is entered, and squeezes the breathing at lower air inlet 21
Piece 9 simultaneously moves down the breathing piece 9, so that outside air is transmitted to below piston.
When piston drop-down, the piston lower air in inflator cylinder 10 is compressed, and pressure becomes larger, because of the original of pressure
Because the air of lower section can flow up, but due to the barrier of ring type seal 8, the air of lower section can not directly be by convection into top,
The air of lower section makes the breathing piece 9 at lower gas outlet 22 to moving inside discharge chamber 4 by air pressure, makes under inflator cylinder 10
Side space is communicated with discharge chamber 4, so that the air of lower section can be by two breathing pieces 9 of 4 top of piston discharge chamber (under i.e.
Breathing piece 9 at gas outlet 22) enter discharge chamber 4, and be output to the outside by the discharge chamber 4 of piston into escape pipe 6.Simultaneously
After piston drop-down, the spatial volume of 10 top of inflator cylinder becomes larger, and air pressure is to become smaller, so that external air can lead to
The air passage 7 between air inlet pipe 5 and escape pipe 6 is crossed, the inlet plenum 3 of piston is entered, and squeezes the breathing at enterprising port 11
Piece 9 simultaneously moves up the breathing piece 9, so that outside air is transmitted to above piston.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (4)
1. a kind of piston of the two-way outlet for inflator, is set in inflator cylinder, which is characterized in that including upper cover and
Lower cover is formed with inlet plenum and discharge chamber between upper cover and lower cover and inlet plenum and discharge chamber is mutually indepedent and sealed set,
Be threaded with air inlet pipe on upper lid, escape pipe be equipped in air inlet pipe and escape pipe is inserted on upper lid, air inlet pipe with go out
The air passage being connected with inlet plenum is formed between tracheae, escape pipe is connected with discharge chamber, and two are offered on upper lid
The upper gas outlet of the enterprising port of connection inlet plenum and two connection discharge chambers offers two connection inlet plenums on lower lid
The lower gas outlet of lower air inlet and two connection discharge chambers is all provided at enterprising port, upper gas outlet, lower air inlet and gas outlet
There is breathing piece, the breathing piece in enterprising port and lower air inlet is located on the outside of inlet plenum, in lower air inlet and air outlet
Breathing piece is on the inside of discharge chamber.
2. the piston of the two-way outlet according to claim 1 for inflator, which is characterized in that breathing piece includes support
Column and diaphragm seal have annular lug on the support columns, several fixation holes are offered in upper cover and lower cover, support column is worn
In relative to fixation hole at, the outer diameter that annular lug and diaphragm seal are located at fixation hole two sides and annular lug, which is greater than, to be fixed
The aperture in hole.
3. the piston of the two-way outlet according to claim 1 for inflator, which is characterized in that set on the outer wall of upper cover
There is ring type seal.
4. the piston of the two-way outlet according to claim 1 for inflator, which is characterized in that in lower cover upper end mask
There is welding groove, there is snap ring on upper lid and snap ring is by being ultrasonically welded in welding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821585323.1U CN208870756U (en) | 2018-09-28 | 2018-09-28 | A kind of piston of the two-way outlet for inflator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821585323.1U CN208870756U (en) | 2018-09-28 | 2018-09-28 | A kind of piston of the two-way outlet for inflator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208870756U true CN208870756U (en) | 2019-05-17 |
Family
ID=66468954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821585323.1U Active CN208870756U (en) | 2018-09-28 | 2018-09-28 | A kind of piston of the two-way outlet for inflator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208870756U (en) |
-
2018
- 2018-09-28 CN CN201821585323.1U patent/CN208870756U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200930 Address after: 315300 No.289 Chaosheng Road, Cixi Binhai Economic Development Zone, Ningbo City, Zhejiang Province Patentee after: Ningbo Zhihai Plastic Technology Co., Ltd Address before: 315800 Second Floor, Building 1, 288 Xiaogang Jing 11 Road, Beilun District, Ningbo City, Zhejiang Province Patentee before: NINGBO ZHIHAI LEISURE PRODUCTS Co.,Ltd. |
|
| TR01 | Transfer of patent right |