CN2143740Y - Pressure reducing needle valve - Google Patents
Pressure reducing needle valve Download PDFInfo
- Publication number
- CN2143740Y CN2143740Y CN 92240540 CN92240540U CN2143740Y CN 2143740 Y CN2143740 Y CN 2143740Y CN 92240540 CN92240540 CN 92240540 CN 92240540 U CN92240540 U CN 92240540U CN 2143740 Y CN2143740 Y CN 2143740Y
- Authority
- CN
- China
- Prior art keywords
- pressure reducing
- needle
- needle valve
- valve
- long tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Feeding And Controlling Fuel (AREA)
Abstract
The utility model relates to a pressure reducing needle valve. The pressure reducing needle valve is applicable to a liquid fuel cooker. The purpose of pressure reducing twice can be achieved. The pressure reducing needle valve is characterized in that an annular groove which is communicated with an oil inlet is arranged inside the pressure reducing needle valve, and the annular groove is communicated with another small hole to play the function of one-time pressure reducing. A pressure reducing rubber ring is arranged between the long pipe seat of the pressure reducing needle valve and a screw rod. The size of the deformation amount of the pressure reducing rubber ring is used for achieving the purpose of quadratic pressure reducing to control the normal fuel of flame. The pressure reducing needle valve has the advantage that the pressure reducing needle valve has the function of twice pressure reducing, and therefore, pressure reducing devices are not needed to be installed on the liquid fuel cooker and a liquid fuel cylinder. The pressure reducing needle valve only can move, and can not rotate, and therefore, the abrasion of a spraying nozzle is reduced.
Description
The utility model relates to a kind of parts of fuel kitchen range, particularly a kind of be applicable to liquid fuel cooking range can twice decompression Pressure reducing needle valve.
At present, add liquid fuel with oil liquefied gas steel cylinder repacking back, and then charge into gas, make the interior liquid fuel of bottle flow to liquid fuel cooking range under pressure and make it burning.When bringing into use, pressure of the inside of a bottle is higher, and in order to make liquid fuel range prodigiosin normal combustion under certain pressure, liquid fuel is decompression earlier before entering burner.Common way is that the front end at oil inlet hose adds a special pressure reducer.Because the complex structure of liquid fuel pressure reducer, cost is higher, so just substitute with the liquefier pressure-reducing valve.And the liquefied gas pressure regulator outlet pressure can only be stabilized in 300 millimeters of water, can not satisfy the instructions for use of liquid fuel cooking range, and the nozzle of oil oven control valve (being needle-valve) front end, in the process of switch, be subjected to needle spin friction effect, wearing and tearing are very fast, destroyed the normal combustion performance of kitchen range.
The purpose of this utility model is: disclose a kind of Pressure reducing needle valve at the deficiency of prior art, when making it to be used in liquid fuel cooking range, on the liquid fuel steel cylinder and all need not to install additional more special pressure-reducing valve on the kitchen range, liquid fuel is fully burnt.And needle has only and moves and do not have rotation, thereby reduced the wearing and tearing of needle and nozzle.
The utility model is achieved in that the right-hand member at the needle seating 17 of Pressure reducing needle valve is equipped with knob 19, left end at needle seating 17 is equipped with needle-valve long tube 2, nozzle 1 and needle-valve long tube 2 link, screw rodb base 10 is housed in needle seating 17, screw mandrel 8 and needle seat 9, wherein: left end is equipped with needle-valve long tube seat 6 in the needle seating 17, needle-valve long tube seat 6 forms a cannelure 21 with screw rodb base 10 contact positions, there is aperture 22 to communicate on the needle-valve long tube seat 6 with cannelure 21, decompression cushion rubber 7 is housed between needle-valve long tube seat 6 and screw mandrel 8, in needle-valve long tube 2, adorning every spring 3, in spring 3, adorning needle 4, suit needle seat 9 on the needle 4, and the right-hand member of needle 4 is being adorned nut 11, pad 12 and spring 13.
Good effect of the present utility model is: this Pressure reducing needle valve not only has the effect of needle-valve but also has the effect of decompression, and has the performance of twice decompression.Because knob when rotated, needle only moves forward and backward does not do rotation, so protected the unlikely wearing and tearing of the spray orifice of nozzle.Stablize the combustibility of burner like this, prolonged the service life of nozzle.
Description of drawings:
Fig. 1 is a structure chart of the present utility model.
Wherein:
1, nozzle 2, needle-valve long tube 3, every spring
4, needle 5, sealing gasket 6, needle-valve long tube seat
7, decompression cushion rubber 8, screw mandrel 9, needle seat
10, screw rodb base 11, nut 12, pad
13, spring 14, sealing ring 15, sealing ring
16, pressure pad 17, needle seating 18, plug wire
19, knob 20, oil-in 21, cannelure
22, aperture
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1.Liquid fuel with pressure is entered in the cannelure 21 between needle-valve long tube seat 6 and the screw rodb base 10 by oil-in 20, and the aperture 22 from needle-valve long tube seat 6 enters inner chamber then, forms decompression for the first time., enter and form decompression for the second time in the needle-valve long tube 2 through the narrow crack between needle-valve long tube seat 6 and the decompression cushion rubber 7 through for the first time post-decompression liquid fuel, under the damping action of spring 3, obtaining preheating, then through nozzle 1 ejection burning.When clockwise rotating knob 19, screw mandrel 8 is pushed ahead under the effect of spiral, compressing decompression cushion rubber 7, and when rotating to a certain degree, oil circuit turn-offs.Screw mandrel 8 moves right when rotating counterclockwise knob 19, has alleviated the pressure of decompression cushion rubber 7, and decompression cushion rubber 7 begins to loosen expansion.When the contacting pressure and be lower than the pressure of fuel of decompression cushion rubber 7 and needle-valve long tube seat 6 inner faces, the fuel just narrow crack between decompression cushion rubber 7 and needle-valve long tube seat 6 is clamp-oned in the needle-valve long tube 2, has so just reached the purpose that reduces pressure for the second time.The advance and retreat of adjusting knob 19, the deflection of change decompression cushion rubber 7 just can be controlled the fuel flow rate that enters in the needle-valve long tube 2, thereby reaches the purpose of regulating flame size.
Claims (1)
1, a kind of Pressure reducing needle valve is equipped with knob 19 at the right-hand member of needle seating 17, at the left end of needle-valve 17 needle-valve long tube 2 is housed, and nozzle 1 and needle-valve long tube 2 link, and screw rodb base 10 is housed in needle seating 17, and screw mandrel 8 and needle seat 9 is characterized in that:
Left end in a, the needle seating 17 is equipped with needle-valve long tube seat 6, and needle-valve long tube seat 6 forms a cannelure 21 with screw rodb base 10 contact positions, has aperture 22 to communicate with cannelure 21 on the needle-valve long tube seat 6,
B, between needle-valve long tube seat 6 and screw mandrel 8, be equipped with the decompression cushion rubber 7,
C, adorning in needle-valve long tube 2 every spring 3, adorning needle 4 in spring 3, suit needle seat 9 on the needle 4, and the right-hand member of needle 4 is being adorned nut 11, pad 12 and spring 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92240540 CN2143740Y (en) | 1992-12-17 | 1992-12-17 | Pressure reducing needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92240540 CN2143740Y (en) | 1992-12-17 | 1992-12-17 | Pressure reducing needle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2143740Y true CN2143740Y (en) | 1993-10-13 |
Family
ID=33780873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92240540 Expired - Fee Related CN2143740Y (en) | 1992-12-17 | 1992-12-17 | Pressure reducing needle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2143740Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997007367A1 (en) * | 1995-08-21 | 1997-02-27 | Cheyuan Chang | A gas-heated water heater with a comburant agent supply means |
| CN102705539A (en) * | 2012-06-21 | 2012-10-03 | 镇江市博林光电科技有限公司 | Constant-pressure needle valve |
-
1992
- 1992-12-17 CN CN 92240540 patent/CN2143740Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997007367A1 (en) * | 1995-08-21 | 1997-02-27 | Cheyuan Chang | A gas-heated water heater with a comburant agent supply means |
| CN102705539A (en) * | 2012-06-21 | 2012-10-03 | 镇江市博林光电科技有限公司 | Constant-pressure needle valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |