CN205173615U - Gaseous pressure reducer of diaphragm formula - Google Patents
Gaseous pressure reducer of diaphragm formula Download PDFInfo
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- CN205173615U CN205173615U CN201520956520.XU CN201520956520U CN205173615U CN 205173615 U CN205173615 U CN 205173615U CN 201520956520 U CN201520956520 U CN 201520956520U CN 205173615 U CN205173615 U CN 205173615U
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- diaphragm
- membrane gas
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Abstract
The utility model discloses a gaseous pressure reducer of diaphragm formula relates to gaseous pressure reducer field, including diaphragm assembly, safe push rod, be equipped with safe chamber in the diaphragm assembly, safe push rod is the piston form and slide the setting at the safety intracavity, diaphragm assembly one side is equipped with the through -hole with safe chamber intercommunication. The utility model discloses with safe push rod setting on diaphragm assembly, whole relief pressure valve can design into the solid of revolution, the coincidence of the axis of rotation of spool valve, valve body, direction valve seat, diaphragm assembly, safe push rod, it has the integrated level height, simple structure is equitable, outside shape is pleasing to the eye, the valve is small, advantages such as light in weight.
Description
Technical field
The utility model relates to gas pressure reducer field, is specifically related to a kind of membrane gas decompressor.
Background technique
Gas pressure reducer is a kind of device pressurized gas being carried out decompression and Flow-rate adjustment.The utilization of gas pressure reducer is extensive, uses, have to pass through decompressor to reduce pressure when gas cylinder or ducted overpressure are not suitable for work, to reach the pressure required for normal use.The function that decompressor not only has a decompression also has the effect of voltage stabilizing, when gas cylinder or tube outlet flow change, through the decompression pressure regulation of decompressor, can keep stable delivery pressure.
Widely use gas pressure reducer in gas piping system high pressure air reducing extremely required low pressure, meet the needs of system.From step-down aspect, reduction valve and throttle valve all have buck functionality, inlet pressure are down to the outlet pressure of some needs; But though throttle valve is had by the throttling of throttling flap and reduces the effect of system pressure, but due to its orifice size be constant, therefore its outlet pressure changes with the change of inlet pressure, can not be stabilized to a steady state value; The elastic element of reduction valve dependence itself and the energy of medium own, its orifice size is changed with the change of inlet pressure, and its choke pressure drop also changes thereupon, keeps outlet pressure substantially constant from face.In brief, the working principle of reduction valve is throttling, and gas flow, when gap between valve and valve base, produces pressure drop, reaches the object of decompression.
Existing gas pressure reducer is all provided with safety valve, but the position of safety valve is independent, and this just structurally causes reduction valve complexity loaded down with trivial details, can not say that reduction valve is set to a convenient processing, the simple solid of rotation of structure.
Model utility content
In view of this, the purpose of this utility model is to provide a kind of membrane gas decompressor, is arranged on by relief valve assembly in diaphragm unit, complicated to solve existing structure of relief pressure valve, the problem of processing difficulties.
The technological scheme adopted for realizing the purpose of this utility model is: a kind of membrane gas decompressor, it is characterized in that, comprise diaphragm unit, safety push-rod, safe chamber is provided with in described diaphragm unit, described safety push-rod is piston-like and is slidably arranged in safe chamber, and described diaphragm unit side is provided with the through hole be communicated with safe chamber.
Further, described diaphragm unit comprises active base, diaphragm, and described diaphragm is fixed on the outer surface of active base.
Further, the profile of described diaphragm unit and described safety push-rod is solid of rotation.
Further, described safety push-rod end is provided with safety spring.
Further, described diaphragm unit also comprises locking nut, and described active base outer surface is circumferentially provided with step, and described active base outer surface is provided with screw thread vertically, and diaphragm is also pressed on described step by described locking nut and described screw-thread fit.
Further, also comprise valve body, guiding valve base, described valve inner is provided with cavity, and described guiding valve base is arranged in cavity, described valve body and described guiding valve base be solid of rotation.
Further, described guiding valve base two ends are respectively equipped with left chamber and right chamber, valve body wall corresponding between described left chamber and right chamber is provided with suction port, described suction port is communicated with the left chamber of guiding valve base, described left chamber is communicated with right chamber, active base and the right chamber of described diaphragm unit are slidably matched, and the rotary middle spindle of described valve body, described guiding valve base, described diaphragm unit overlaps.
Further, also comprise outlet connection, described outlet connection is connected with one end of described moving valve gate seat, and sliding in the left chamber of described guiding valve base is provided with side valve, be provided with Returnning spring between described side valve and outlet connection, be connected by push rod between side valve with diaphragm unit.
Further, also comprise pressure regulation nut, described pressure regulation nut is fixedly connected on the end of valve body, and the outer rim of described diaphragm is fixed on valve end by described pressure regulation nut; Pressure adjusting spring is provided with between described diaphragm unit and pressure regulation nut.
Further, described pressure regulation nut is connected with the safety spring of safety push-rod end, and the end of described pressure regulation nut is provided with safe air outlet.
The beneficial effects of the utility model:
The utility model has that structure is simple, pressure stability, lightweight, regulate the advantages such as easy for installation, when gas cylinder or pipe outlet flow change, decompression through decompressor regulates, just stable delivery pressure can be kept, during work, the delivery pressure that the overflow effect of safety push-rod and the aperture vary stable decompressor at diverter valve assembly and side valve place export.
Safety push-rod is arranged on diaphragm unit, whole reduction valve can be designed to solid of rotation, the rotational axis of side valve, valve body, guiding valve base, diaphragm unit, safety push-rod overlaps, its level of integration is high, structurally advantages of simple, external shape is attractive in appearance, and reduction valve volume can be made less, and weight is lighter.
Accompanying drawing explanation
Fig. 1 is the structural representation of the membrane gas decompressor that the utility model provides;
Fig. 2 is the structural representation of the membrane gas decompressor diaphragm unit that the utility model provides.
In figure: 1, right chamber; 2, outlet connection; 3, export; 4, Returnning spring; 5, left chamber; 6, side valve; 7, intake duct; 8, suction port; 9, diaphragm unit; 10, pressure adjusting spring; 11, safety spring; 12, safe air outlet; 13, fixing swivel nut; 14, pressure regulation nut; 15, sliding shim; 16, friction top; 17, safety push-rod; 18, cushion block; 19, push rod; 20, valve body; 21, lead valve base; 22, active base; 23, locking nut; 24, through hole; 25, screw thread; 26, diaphragm; 27, safe chamber.
Embodiment
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
Fig. 1 shows a kind of membrane gas decompressor that the utility model provides, comprise diaphragm unit 9, safety push-rod 17, safe chamber 27 is provided with in diaphragm unit 9, safety push-rod 17 is piston-like and is slidably arranged in safe chamber 27, and safe chamber 27 inwall is provided with the through hole 24 be communicated with diaphragm unit side.
Fig. 2 shows the structure of diaphragm unit 9, diaphragm unit 9 includes active base 22, diaphragm 26, locking nut 23, active base 22 outer surface is circumferentially provided with step, and active base 22 outer surface is provided with screw thread 25 vertically, and locking nut 23 coordinates with screw thread 25 and is pressed on step by diaphragm 26.
In the present embodiment, valve body 20, guiding valve base 21, diaphragm unit 9 are all solid of rotation, and their turning axle overlaps, and namely diaphragm unit 9 exists a central shaft, and safe chamber 27 is arranged in active base 22, the central shaft of the two overlaps, safety push-rod 17 in safe chamber 27 is piston-shaped, and can slide in safe chamber 27, and the through hole 24 on the inwall of safe chamber 27 can be one, also can have multiple, through hole 24 leads to that side that safety push-rod 17 stretches out in active base 22 pedestal; As shown in Figure 1, in that side that safety push-rod 17 stretches out, the end face of valve body 20 exceeds the position of diaphragm 26, the inner edge of diaphragm 26 nut 23 that is locked is pressed on the step of active base 22 outer surface, diaphragm 26 outer rim coordinates with the internal surface of valve body 20, the internal surface relevant position of valve body 20 is also provided with step, and the compacted lid 16 of diaphragm 26 outer rim is pressed on the step on valve body 20 internal surface by cushion block 18.Like this, whole valve body 20 inside be divide into two-part of isolation by diaphragm 26 and safety push-rod 17.That fixes in that one end that safety push-rod 17 stretches out is provided with sliding shim 15, it is inner that safety spring 11 and sliding shim 15 are all arranged on a fixing swivel nut 13, fixing swivel nut 13 is fixed on friction top 16 by pressure regulation nut 14, friction top 16 and valve body 20 are also be fixed together by screw-thread fit, pressure adjusting spring 10 is just arranged between locking nut 23 and pressure regulation nut 14, safety spring 11 is arranged between sliding shim 15 and fixing swivel nut 13, the inwall of fixing swivel nut 13 has through hole, fixing swivel nut 13 inner space is communicated with safe chamber 27, in the end of fixing swivel nut 13, be provided with safe air outlet 12.
At the opposite side that valve body 20 is separated by diaphragm 26 and safety push-rod 17, it is inner that guiding valve base 21 is arranged on valve body 20, and guiding valve base 21 two ends have left chamber 5 and right chamber 1 respectively, the active base 22 of valve member 9 above-mentioned is slided setting in right chamber 1, side valve 6 is provided with in the inside, left chamber 5 of guiding valve base, be fixedly installed air outlet joint 2 at the left end of guiding valve base 21, air outlet joint 2 is provided with air outlet 3, is provided with Returnning spring 4 between side valve 6 and air outlet joint 2; Valve body 20 inwall corresponding between the left chamber 5 and right chamber 1 of guiding valve base 21 is provided with suction port 8, guiding valve base 21 offers the intake duct 7 corresponding with suction port 8, gas flows to side valve 6 by intake duct 8, relies on the aperture between side valve 6 and guiding valve base 21 to control the gas pressure of air outlet; Lead between left chamber 5 and right chamber 1 on valve base 21, not only there is intake duct 7 this position, also offering intercommunicating pore along in the left wall circumference in right chamber 1, intercommunicating pore 3 altogether, in FIG, owing to being sectional drawing, we can only see one, and in this hole, have the push rod 19 connecting side valve 6 and active base 22, that is, left chamber 5 has been communicated with right chamber 1 by all the other two holes.
When whole gas pressure reducer work, gas enters valve body from suction port 8, side valve 6 is flowed to along intake duct 7, after side valve 6, the pressure of gas is reduced to certain value, arrive near air outlet 3, while intake duct 7 flows to side valve 6 simultaneously, gas without decompression also leads to right chamber 1, gas pressure in right chamber 1 is in the scope of safety pressure, safety push-rod 17 relies on the impacting force of safety spring 11 to be covered by through hole 24, pressurized gas in right chamber 1 promote diaphragm 26 and compress pressure adjusting spring 10, during normal work, Returnning spring 4, side valve 6, diaphragm unit 9, pressure adjusting spring 10 is in state of equilibrium, when the pressure increase at suction port 8 place, diaphragm 26 makes the decrement of pressure adjusting spring 10 increase to the right, and diaphragm unit 9 drives side valve 6 to move to right, and the aperture between side valve 6 and guiding valve base 21 is reduced, the pressure loss increases, and remains constant to keep the gas pressure of position, air outlet 3, otherwise when suction port 8 pressure reduces, side valve 6 can move to left under the drive of diaphragm unit 9, and aperture increases, and pressure drop reduces, the pressure remained constant at air outlet 3 place.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a membrane gas decompressor, it is characterized in that, comprise diaphragm unit, safety push-rod, in described diaphragm unit, be provided with safe chamber, described safety push-rod is piston-like and is slidably arranged in safe chamber, and described diaphragm unit side is provided with the through hole be communicated with safe chamber.
2. membrane gas decompressor according to claim 1, is characterized in that, described diaphragm unit comprises active base, diaphragm, and described diaphragm is fixed on the outer surface of active base.
3. membrane gas decompressor according to claim 2, is characterized in that, the profile of described diaphragm unit and described safety push-rod is solid of rotation.
4. membrane gas decompressor according to claim 3, is characterized in that, described safety push-rod end is provided with safety spring.
5. membrane gas decompressor according to claim 4, it is characterized in that, described diaphragm unit also comprises locking nut, described active base outer surface is circumferentially provided with step, described active base outer surface is provided with screw thread vertically, and diaphragm is also pressed on described step by described locking nut and described screw-thread fit.
6. membrane gas decompressor according to claim 4, is characterized in that, also comprise valve body, guiding valve base, described valve inner is provided with cavity, and described guiding valve base is arranged in cavity, described valve body and described guiding valve base be solid of rotation.
7. membrane gas decompressor according to claim 6, it is characterized in that, described guiding valve base two ends are respectively equipped with left chamber and right chamber, valve body wall corresponding between described left chamber and right chamber is provided with suction port, described suction port is communicated with the left chamber of guiding valve base, described left chamber is communicated with right chamber, and active base and the right chamber of described diaphragm unit are slidably matched, and the rotary middle spindle of described valve body, described guiding valve base, described diaphragm unit overlaps.
8. membrane gas decompressor according to claim 7, it is characterized in that, also comprise outlet connection, described outlet connection is connected with one end of described moving valve gate seat, slide in the left chamber of described guiding valve base and be provided with side valve, be provided with Returnning spring between described side valve and outlet connection, be connected by push rod between side valve with diaphragm unit.
9. membrane gas decompressor according to claim 7, is characterized in that, also comprises pressure regulation nut, and described pressure regulation nut is fixedly connected on the end of valve body, and the outer rim of described diaphragm is fixed on valve end by described pressure regulation nut; Pressure adjusting spring is provided with between described diaphragm unit and pressure regulation nut.
10. membrane gas decompressor according to claim 9, is characterized in that, described pressure regulation nut is connected with the safety spring of safety push-rod end, and the end of described pressure regulation nut is provided with safe air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520956520.XU CN205173615U (en) | 2015-11-26 | 2015-11-26 | Gaseous pressure reducer of diaphragm formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520956520.XU CN205173615U (en) | 2015-11-26 | 2015-11-26 | Gaseous pressure reducer of diaphragm formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205173615U true CN205173615U (en) | 2016-04-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520956520.XU Active CN205173615U (en) | 2015-11-26 | 2015-11-26 | Gaseous pressure reducer of diaphragm formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205173615U (en) |
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2015
- 2015-11-26 CN CN201520956520.XU patent/CN205173615U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |