CN207728970U - A kind of novel screw compressor intake valve - Google Patents
A kind of novel screw compressor intake valve Download PDFInfo
- Publication number
- CN207728970U CN207728970U CN201721617732.0U CN201721617732U CN207728970U CN 207728970 U CN207728970 U CN 207728970U CN 201721617732 U CN201721617732 U CN 201721617732U CN 207728970 U CN207728970 U CN 207728970U
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- China
- Prior art keywords
- flange
- boss
- piston cylinder
- shell
- inclined hole
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses a kind of novel screw compressor intake valves, including shell, piston cylinder, piston and open and close check valve seal component, upper part of the housing is provided with air inlet, the piston cylinder bottom cylindrical week is provided with flange, and it is provided with boss on the excircle of piston cylinder, boss is between piston cylinder and flange, the bottom position of housing cavity is provided with flange groove, it is fastened and is connect with the flange in piston cylinder bottom cylindrical week by flange groove, flange is coordinated with the inner circle in shell by seal with O ring, flange is fixed on by clamp spring in the bottom of the housing cavity, an inclined hole is provided on boss, inclined hole one end is connected with piston cylinder inner cavity, the inclined hole other end is connected with shell, air admission hole is provided on shell, air admission hole is connected with the inclined hole other end, it is sealed by rubber seal between air admission hole and the inclined hole other end.Its structure of the utility model is also relatively simple, easy to manufacture, substantially reduces the input of cost.
Description
Technical field
The utility model is related to technical field of air inlet more particularly to a kind of novel screw compressor intake valves.
Background technology
The structure of usual intake valve is generally made of air inlet, valve chest, upper cover, piston, pedestal and solenoid valve of releasing,
Operation principle is to move up and down control air compressor machine empty and load using air compressor gas valve inner carrier to work, and when air compressor machine startup, is stopped
When machine or zero load, solenoid valve of releasing is supplied using air inlet to piston, and piston is made to close upwards；When air compressor machine full-load operation
Afterwards, solenoid valve of releasing obtains electric stopping and releases, and piston chamber is discharged from exhaust outlet, and air inlet valve piston is because under the relationship of air inlet pressure force difference
Drop, intake valve standard-sized sheet, air compressor machine full-load operation；When pressure reaches setting upper pressure limit, solenoid valve dead electricity of releasing starts to let out
It puts, and air inlet valve piston is pushed to, intake valve is made to be closed, air compressor machine is in light condition at this time.
Typical air inlet valve of screw compressor is as shown in Fig. 1.Wherein structure includes shell A, shell A pedestals, piston cylinder
B, air inlet C, gasket D and bolt E, shell A pedestals and piston cylinder B are cast in same one, and the upper cover of connection shell A is by spiral shell
Bolt E is fixed, and the end face at upper and lower two is sealed with gasket D.Such structure intake valve has a problem that；Piston cylinder B is easy
Wearing part, and shell A is substantially will not damaging easily for semipermanent under normal usage, and piston cylinder B is being used
A certain amount of abrasion is had after a period of time, is thus done for if serious wear means that this deck valve door, due to it
All intake valves are aluminium alloy compression casting forming, processing technology complexity and material expensive, if certain points only in component
Entire valve is scrapped in abrasion, causes the waste of material, it is therefore necessary to make improvements to existing air inlet valve of screw compressor.
Utility model content
In view of the drawbacks of the prior art, the utility model provides a kind of novel screw compressor intake valve, and purpose exists
Structure is lighter and service life is long in providing, while being capable of quick-replaceable helical-lobe compressor after piston cylinder abrasion
Intake valve.
To achieve the goals above, technical solution adopted in the utility model is：
A kind of novel screw compressor intake valve, including shell, upper part of the housing are provided with air inlet, the bottom surface of enclosure interior
It is provided with piston cylinder, piston is installed in piston cylinder, the valve rod of liftable movement is installed in piston, a use is provided on valve rod
Check valve seal component is opened and closed in connection, is provided with flange, and the outer circle of piston cylinder in the piston cylinder bottom cylindrical week
Boss is provided on week, boss is between piston cylinder and flange, and the bottom position of housing cavity is provided with flange groove, by convex
Edge slot fastens with the flange in piston cylinder bottom cylindrical week and connect, and flange is coordinated with the inner circle in shell by seal with O ring, convex
Edge is fixed on by clamp spring in the bottom of the housing cavity, and an inclined hole is provided on boss, and inclined hole one end is connected in piston cylinder
Chamber, the inclined hole other end are connected with shell, and air admission hole is provided on shell, and air admission hole is connected with the inclined hole other end, air admission hole with
It is sealed by rubber seal between the inclined hole other end.
The boss is rectangle, and the housing outer surface that there is interval between boss is provided with boss block, and boss block is thick
Thickness of the degree less than boss.
The boss is dome-shaped, and the hull outside wall of facade is provided with pipeline in boss, and pipeline is connected with method
It is blue.
The beneficial effects of the utility model：It is provided with flange the week of piston cylinder bottom cylindrical described in the utility model, and living
Boss is provided on the excircle of plug cylinder, between piston cylinder and flange, the bottom position of housing cavity is provided with convex boss
Edge slot is fastened with the flange in piston cylinder bottom cylindrical week by flange groove and is connect, convenient for having the case where abrasion in piston cylinder
Under can be only with replacing piston cylinder, it is not necessary to it is whole to be scrapped, reduce scrappage；Its structure of the utility model is also more simple
It is single, it is easy to manufacture, it also allows for reusing its shell, has saved material, while production cost compares existing screw rod pressure
Contracting machine intake valve decreases, and more meets the use demand of modern people.
Description of the drawings
Fig. 1 is air inlet valve of screw compressor schematic diagram in the prior art；
Fig. 2 is one sectional view schematic diagram of the utility model embodiment；
Fig. 3 is piston cylinder schematic diagram in Fig. 2；
Fig. 4 is two schematic diagram of the utility model embodiment；
Fig. 5 is piston cylinder schematic diagram in Fig. 4；
Fig. 6 is the sectional view that shell is separated from Fig. 4.
Specific implementation mode
A kind of novel screw compressor intake valve, including shell 1,1 top of shell are provided with air inlet 11, inside shell 1
Bottom surface be provided with piston cylinder 2, piston 21 is installed in piston cylinder 2, be equipped in piston 21 liftable movement valve rod 3, valve
Be provided on bar 3 one for connect open and close check valve seal component 4,2 bottom cylindrical week of the piston cylinder is provided with convex
Edge 22, and boss 23 is provided on the excircle of piston cylinder 2, boss 23 is between piston cylinder 2 and flange 22,1 inner cavity of shell
Bottom position be provided with flange groove 12, fastened and connect with the flange 22 in piston cylinder 2 bottom cylindrical week by flange groove 12, it is convex
Edge 22, which is sealed with the inner circle in shell 1 by O-ring 5, to be coordinated, and flange 22 is fixed on the bottom of 1 inner cavity of the shell by clamp spring 6
In portion, an inclined hole 231 is provided on boss 23,231 one end of inclined hole is connected with 2 inner cavity of piston cylinder, and 231 other end of inclined hole is connected with shell
Body 1 is provided with air admission hole 13 on shell 1, and air admission hole 13 is connected with 231 other end of inclined hole, and air admission hole 13 and inclined hole 231 are another
It is sealed by rubber seal 7 between end.
Shell 1 in the utility model is pedestal in boss portion, typically rectangle, by being bolted to helical-lobe compressor
Head on, top is the air inlet 11 that the cylindric taper continuously designed extends to another small end cylinder shape, and air inlet 11 is used
Air filter (not shown) outside connection.
The inner wall of the bottom position of shell 1 is processed to be suitble to the flange groove of assembly piston cylinder.
Embodiment one
As shown in Figures 2 and 3, shell 1 in the utility model in the utility model is pedestal in boss portion, typically
Rectangle, by being bolted on the head of helical-lobe compressor, top is that the cylindric taper continuously designed extends to another small end
Cylindric air inlet 11, air inlet 11 are used to connect external air filter (not shown), the bottom position of shell 1
Inner wall be processed to be suitble to the flange groove 12 of assembly piston cylinder, be provided with flange 22 in 2 bottom cylindrical week of the piston cylinder, and living
Boss 23 is provided on the excircle of plug cylinder 2, the boss 23 is rectangle, there is the shell appearance at interval between convex 23
Face is provided with boss block 232, and 232 thickness of boss block is less than the thickness of boss 23, and boss 23 and boss block 232, which are respectively located at, lives
Between plug cylinder 2 and flange 22, the bottom position of 1 inner cavity of shell is provided with flange groove 12, passes through flange groove 12 and 2 bottom of piston cylinder
The flange 22 of excircle fastens connection, and flange 22, which is sealed with the inner circle in shell 1 by O-ring 5, to be coordinated, and flange 22 passes through card
Spring 6 is fixed in the bottom of 1 inner cavity of the shell, and an inclined hole 231 is provided on boss 23, and 231 one end of inclined hole is connected with piston cylinder 2
Inner cavity, 213 other end of inclined hole are connected with shell 1, and air admission hole 13, air admission hole 13 and 231 other end phase of inclined hole are provided on shell 1
It is connected to, is sealed by rubber seal 7 between 231 other end of air admission hole 13 and inclined hole.Such air inlet valve of screw compressor is known as
The vertical intake valve of helical-lobe compressor.
Embodiment two
As shown in Figure 4, Figure 5 and Figure 6, shell 1 in the utility model in the utility model is pedestal in boss portion, is led to
It is often rectangle, by being bolted on the head of helical-lobe compressor, top extends to another for the cylindric taper continuously designed
The air inlet 11 of small end cylinder shape, air inlet 11 are used to connect external air filter (not shown), the bottom of shell 1
The inner wall of position is processed to be suitble to the flange groove 12 of assembly piston cylinder, is provided with flange 22 in 2 bottom cylindrical week of the piston cylinder,
And boss 23 is provided on the excircle of piston cylinder 2, the boss 23 is dome-shaped, and in shell 1 of the boss 23 with respect to facade
Lateral wall is provided with pipeline, and pipeline is connected with flange 8, and boss 23 is between piston cylinder 2 and flange 22, the bottom of 1 inner cavity of shell
Position, which installs, is equipped with flange groove 12, is fastened and is connect with the flange 22 in piston cylinder 2 bottom cylindrical week by flange groove 12, flange 22
It being sealed and is coordinated by O-ring 5 with the inner circle in shell 1, flange 22 is fixed on by clamp spring 6 in the bottom of 1 inner cavity of the shell,
An inclined hole 231 is provided on boss 23,231 one end of inclined hole is connected with 2 inner cavity of piston cylinder, and 231 other end of inclined hole is connected with shell 1,
Air admission hole 13 is provided on shell 1, air admission hole 13 is connected with 231 other end of inclined hole, air admission hole 13 and 231 other end of inclined hole it
Between sealed by rubber seal 7.Such air inlet valve of screw compressor is known as helical-lobe compressor Horizontal admission valve.
The beneficial effects of the utility model：It is provided with flange the week of piston cylinder bottom cylindrical described in the utility model, and living
Boss is provided on the excircle of plug cylinder, between piston cylinder and flange, the bottom position of housing cavity is provided with convex boss
Edge slot is fastened with the flange in piston cylinder bottom cylindrical week by flange groove and is connect, convenient for having the case where abrasion in piston cylinder
Under can be only with replacing piston cylinder, it is not necessary to it is whole to be scrapped, reduce scrappage；Its structure of the utility model is also more simple
It is single, it is easy to manufacture, it also allows for reusing its shell, has saved material, while production cost compares existing screw rod pressure
Contracting machine intake valve decreases, and more meets the use demand of modern people.
Claims (3)
1. a kind of novel screw compressor intake valve, including shell, upper part of the housing is provided with air inlet, and the bottom surface of enclosure interior is set
It is equipped with piston cylinder, piston is installed in piston cylinder, the valve rod of liftable movement is installed in piston, being provided with one on valve rod is used for
Connection opens and closes check valve seal component, it is characterised in that：The piston cylinder bottom cylindrical week is provided with flange, and piston
Boss is provided on the excircle of cylinder, for boss between piston cylinder and flange, the bottom position of housing cavity is provided with flange
Slot is fastened with the flange in piston cylinder bottom cylindrical week by flange groove and is connect, and flange is close by O-ring with the inner circle in shell
Envelope cooperation, flange are fixed on by clamp spring in the bottom of the housing cavity, an inclined hole are provided on boss, inclined hole one end is connected with
Piston cylinder inner cavity, the inclined hole other end are connected with shell, and air admission hole is provided on shell, and air admission hole is connected with the inclined hole other end,
It is sealed by rubber seal between air admission hole and the inclined hole other end.
2. a kind of novel screw compressor intake valve according to claim 1, it is characterised in that：The boss is rectangle,
The housing outer surface that there is interval between boss is provided with boss block, and boss block thickness is less than the thickness of boss.
3. a kind of novel screw compressor intake valve according to claim 1, it is characterised in that：The boss is circular arch
Shape, and the hull outside wall of facade is provided with pipeline in boss, pipeline is connected with flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721617732.0U CN207728970U (en) | 2017-11-29 | 2017-11-29 | A kind of novel screw compressor intake valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721617732.0U CN207728970U (en) | 2017-11-29 | 2017-11-29 | A kind of novel screw compressor intake valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207728970U true CN207728970U (en) | 2018-08-14 |
Family
ID=63088312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721617732.0U Expired - Fee Related CN207728970U (en) | 2017-11-29 | 2017-11-29 | A kind of novel screw compressor intake valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207728970U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949265A (en) * | 2017-05-05 | 2017-07-14 | 珠海格力电器股份有限公司 | Air conditioning equipment, water chilling unit, non-return structure and control method thereof |
| CN111810689A (en) * | 2020-07-27 | 2020-10-23 | 陈俊林 | Air compressor check valve |
-
2017
- 2017-11-29 CN CN201721617732.0U patent/CN207728970U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949265A (en) * | 2017-05-05 | 2017-07-14 | 珠海格力电器股份有限公司 | Air conditioning equipment, water chilling unit, non-return structure and control method thereof |
| CN111810689A (en) * | 2020-07-27 | 2020-10-23 | 陈俊林 | Air compressor check valve |
| CN111810689B (en) * | 2020-07-27 | 2022-02-25 | 北京北方力源智能科技股份有限公司 | Air compressor check valve |
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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: 20180814 Termination date: 20211129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |