CN201554911U - Thermal fogger air passage one-way valve - Google Patents
Thermal fogger air passage one-way valve Download PDFInfo
- Publication number
- CN201554911U CN201554911U CN2009202053544U CN200920205354U CN201554911U CN 201554911 U CN201554911 U CN 201554911U CN 2009202053544 U CN2009202053544 U CN 2009202053544U CN 200920205354 U CN200920205354 U CN 200920205354U CN 201554911 U CN201554911 U CN 201554911U
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- valve
- ring
- way valve
- heating power
- gas circuit
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Abstract
The utility model discloses a thermal fogger air passage one-way valve, which comprises a valve body, a bonnet, a valve plate and a central screw. The valve body includes a joint and an annular valve seat. The bonnet includes an air outlet joint. The center of the annular valve seat includes a projecting round table; the center of the round table includes central screw mounting threads. The center of the bonnet includes a hollow column body, the central screw penetrates through the column body so as to mount the bonnet on the valve body, and the lower end face of the column body contacts with the upper end face of the round table. The lower end face of the column body, the outer circumference of the round table and the inner annular face of the valve seat form a mounting annular groove of the valve plate. Compared with the prior art, the valve has the advantages of simple structure, easy processing, long service life and lower cost.
Description
[technical field]
The utility model relates to the heating power smoke machines, relates in particular to a kind of gas circuit one-way valve of heating power smoke machines.
[background technique]
As shown in Figure 1, the heating power smoke machines needs unidirectional air supply systems (pump or air pump) to give the Carburetor air feed when starting, otherwise Carburetor is cisco unity malfunction, and one-way valve plays the effect of unidirectional ventilation as the assembly of this system.The heating power smoke machines in the course of the work, following cyclic process is being carried out in the firing chamber: air-breathing oil suction-mixed explosion-exhaust aerosol spraying.The pressure of medicine-chest spray medicine comes the moment as for the mixture combustion blast, gas during for air-breathing oil suction in the medicine-chest is not sucked out, cut off gas circuit between medicine-chest and the firing chamber (in Fig. 1,1. firing chamber, 2. medicine-chest, 3. one-way valve, 4. balance cylinder's body, 5. fuel tank, 6. carburetter body, 7. pump) so need use one-way valve.
The structure of tradition one-way valve is (in Fig. 2,1. copper screw cap, 2. asbestos packing, 3. unidirectional valve gap, 4.O shape circle, 5. one-way valve diaphragm, 6. one-way valve sealing gasket, 7. check valve body) as shown in Figure 2.There is following shortcoming in the one-way valve of this structure:
1. one-way valve diaphragm 5 and O shape circle 4 is installed in the annular groove of check valve body 7, after O shape circle is subjected to the compression of annular groove, it is just pasted on the valve seat for suitable impacting force of one-way valve diaphragm, each and every one impacting force is too big as this, the periphery of one-way valve diaphragm 5 can stick up, and leaks gas when causing back-pressure.For this reason, on technology, need thickness, the O shape circle cross-sectional diameter of strict controlling non-return valve diaphragm, and the width of annular groove, difficulty of processing is big, the processing cost height.
One-way valve diaphragm 5 and O shape enclose 4 every in the annular groove of check valve body 7, install once or dismounting once, all need once the internal diameter expansion, the result of expansion can cause expendable distortion, reduces the working life of part.
3. the length of copper check valve body 7 is big, and consumable material is many, and difficulty of processing is big, and copper screw cap 1 is non-tender, has increased cost of production.
[summary of the invention]
The technical problems to be solved in the utility model provides a kind of simple in structure, easy processing, long service life, lower-cost heating power smoke machines gas circuit one-way valve.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of heating power smoke machines gas circuit one-way valve, comprise valve body, valve gap, valve block and central screw, described valve body comprises joint and ring-shaped valve seats, described valve gap comprises air outlet adapter, and the central authorities of described ring-shaped valve seats comprise the round platform of projection, and the center of round platform comprises central screw installation screw thread; The central authorities of described valve gap comprise the cylinder of hollow, and central screw passes described cylinder valve gap is installed on the valve body, and the lower end surface of cylinder contacts with the upper-end surface of round platform; The inner ring surface of the lower end surface of cylinder, the periphery of round platform and valve seat constitutes the installation annular groove of valve block.
Above-described heating power smoke machines gas circuit one-way valve, described valve block in height with described installation annular groove interference fit.
Above-described heating power smoke machines gas circuit one-way valve, described valve block is a ring film, and described ring film comprises the installing ring of 1 circle projection, and the upper end of described installing ring contacts with the lower end surface of cylinder, and the lower surface of ring film is pressed on the inner ring surface of valve seat.
Above-described heating power smoke machines gas circuit one-way valve, the endoporus of described installing ring is greater than the endoporus of ring film.
Above-described heating power smoke machines gas circuit one-way valve, described valve block comprises O shape cushion rubber and annular flat diaphragm, the upper end of described O shape cushion rubber contacts with the lower end surface of cylinder, and the lower end of O shape cushion rubber is pressed in the upper surface of annular flat diaphragm, and the lower surface of annular flat diaphragm is pressed on the inner ring surface of ring-shaped valve seats.
Above-described heating power smoke machines gas circuit one-way valve, the outer ring surface of ring-shaped valve seats is higher than the inner ring surface of ring-shaped valve seats
The width of the utility model heating power smoke machines gas circuit one-way valve valve block installing ring groove is by the decision of the height of ring-shaped valve seats central protrusion round platform, adds to be easy to control than the width of groove man-hour, and difficulty of processing is little; The length of copper valve body shortens dramatically, and consumable material is little, and nonstandard copper screw cap replaces and can reduce production costs with the screw of standard; It is split that the utility model valve block is installed annular groove, the valve block installation or removal, and its internal diameter need not expansion, and be improved the working life of part.
[description of drawings]
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a heating power smoke machines gas circuit one-way valve mounting point schematic representation.
Fig. 2 is the structural representation of prior art heating power smoke machines gas circuit one-way valve.
Fig. 3 is the utility model heating power smoke machines gas circuit one-way valve embodiment 1 a structural representation.
Fig. 4 is one of structural representation of the utility model heating power smoke machines gas circuit one-way valve embodiment 2.
Fig. 5 be the utility model heating power smoke machines gas circuit one-way valve embodiment 2 structural representation two.
Fig. 6 is the structural representation of the utility model heating power smoke machines gas circuit one-way valve embodiment 2 valve blocks.
[embodiment]
In the utility model heating power smoke machines gas circuit one-way valve embodiment 1 shown in Figure 3, comprise valve body 6, valve gap 3, O shape circle 7, annular flat diaphragm 4 and central screw 1.Air input joint 601 and ring-shaped valve seats 602 are arranged on the valve body 6, and 602 central authorities of ring-shaped valve seats have the round platform 603 of 1 projection, the center of round platform 603 to have central screw 1 that screw thread is installed.Valve gap 3 has air outlet adapter 301, and there is the cylinder 302 of hollow in the central authorities of valve gap 3, and central screw 1 passes cylinder 302 valve gap 3 is fixed on the valve body 6, and the lower end surface of cylinder 302 contacts with the upper-end surface of round platform 603.The periphery of the lower end surface of cylinder 302, round platform 602 and the inner ring surface of valve seat 604 constitute the installation annular groove of valve block.
The valve block of present embodiment comprises O shape cushion rubber 7 and annular flat diaphragm 4.O shape cushion rubber 7 and annular flat diaphragm 4 all are installed in the annular groove.The upper end of O shape cushion rubber 7 contacts with the lower end surface of cylinder 302, and the lower end of O shape cushion rubber 7 is pressed in the upper surface of annular flat diaphragm 4, and the lower surface of annular flat diaphragm 4 is pressed on the inner ring surface 604 of ring-shaped valve seats.O shape cushion rubber 7 and the total height of annular flat diaphragm 4 under free state are greater than the width that annular groove is installed, so valve block is an interference fit with annular groove is installed in height.
In order to improve the reverse sealing of one-way valve, the outer ring surface 605 of ring-shaped valve seats is a little more than the inner ring surface 604 of ring-shaped valve seats.
Between valve body 6 and the valve gap 3 sealing gasket 5 is arranged on junction plane, between the screw head of central screw 1 and the valve gap 3 sealing gasket 2 is arranged.
The utility model heating power smoke machines gas circuit one-way valve embodiment 2 structure such as Fig. 4 are that with embodiment's difference valve block is different to shown in Figure 6.Embodiment 2 valve block is a ring film 8, and ring film 8 is enclosed within the outside of round platform 603.Ring film 8 has the installing ring 801 of 1 circle projection, and the upper end of installing ring 801 contacts with the lower end surface of cylinder 302, and the lower surface of ring film is pressed on the inner ring surface 602 of valve seat.Ring film 8 in the overall height H at installing ring 801 places greater than the width B that annular groove is installed, so ring film 8 is an interference fit with annular groove is installed in height.The endoporus D of installing ring 801 is greater than the endoporus d of ring film, the sealing when helping improving valve block and closing.
Claims (6)
1. heating power smoke machines gas circuit one-way valve, comprise valve body, valve gap and valve block, described valve body comprises joint and ring-shaped valve seats, described valve gap comprises air outlet adapter, it is characterized in that, comprise central screw, the central authorities of described ring-shaped valve seats comprise the round platform of projection, and the center of round platform comprises central screw installation screw thread; The central authorities of described valve gap comprise the cylinder of hollow, and central screw passes described cylinder valve gap is installed on the valve body, and the lower end surface of cylinder contacts with the upper-end surface of round platform; The inner ring surface of the lower end surface of cylinder, the periphery of round platform and valve seat constitutes the installation annular groove of valve block.
2. heating power smoke machines gas circuit one-way valve according to claim 1 is characterized in that, described valve block in height with described installation annular groove interference fit.
3. heating power smoke machines gas circuit one-way valve according to claim 2, it is characterized in that, described valve block is a ring film, described ring film comprises the installing ring of 1 circle projection, the upper end of described installing ring contacts with the lower end surface of cylinder, and the lower surface of ring film is pressed on the inner ring surface of valve seat.
4. heating power smoke machines gas circuit one-way valve according to claim 3 is characterized in that the endoporus of described installing ring is greater than the endoporus of ring film.
5. heating power smoke machines gas circuit one-way valve according to claim 3, it is characterized in that, described valve block comprises O shape cushion rubber and annular flat diaphragm, the upper end of described O shape cushion rubber contacts with the lower end surface of cylinder, the lower end of O shape cushion rubber is pressed in the upper surface of annular flat diaphragm, and the lower surface of annular flat diaphragm is pressed on the inner ring surface of ring-shaped valve seats.
6. heating power smoke machines gas circuit one-way valve according to claim 2, the outer ring surface of ring-shaped valve seats is higher than the inner ring surface of ring-shaped valve seats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202053544U CN201554911U (en) | 2009-09-29 | 2009-09-29 | Thermal fogger air passage one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202053544U CN201554911U (en) | 2009-09-29 | 2009-09-29 | Thermal fogger air passage one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201554911U true CN201554911U (en) | 2010-08-18 |
Family
ID=42614593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202053544U Expired - Fee Related CN201554911U (en) | 2009-09-29 | 2009-09-29 | Thermal fogger air passage one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201554911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519648A (en) * | 2018-12-20 | 2019-03-26 | 北京宇航系统工程研究所 | A kind of rocket low temperature control gas circuit waterproof end plug |
-
2009
- 2009-09-29 CN CN2009202053544U patent/CN201554911U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519648A (en) * | 2018-12-20 | 2019-03-26 | 北京宇航系统工程研究所 | A kind of rocket low temperature control gas circuit waterproof end plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20140929 |
|
| EXPY | Termination of patent right or utility model |