CN205244526U - Pressure reducer - Google Patents
Pressure reducer Download PDFInfo
- Publication number
- CN205244526U CN205244526U CN201521132037.6U CN201521132037U CN205244526U CN 205244526 U CN205244526 U CN 205244526U CN 201521132037 U CN201521132037 U CN 201521132037U CN 205244526 U CN205244526 U CN 205244526U
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- China
- Prior art keywords
- pressure
- block
- compensation
- diaphragm
- spring
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Abstract
The utility model relates to a pressure reducer has solved the pressure reducer simple structure among the prior art, and the gas pressure of output is undulant great not enough. The utility model provides a pair of pressure reducer is equipped with air inlet filter screen, is equipped with the filter screen of giving vent to anger in the gas outlet in the air inlet, air inlet filter screen, the filter screen of giving vent to anger play and carry out filterable effect to the air current, can also avoid the impurity plug the pipe in the air current when impurity in avoiding the air current stops up the relief pressure valve, has optimized the performance of relief pressure valve, be provided with in the spacing block can gliding compensation the piece, the atmospheric pressure that the compensation piece can compensate in the high pressure chest is undulant because the compensation piece can slide in the accommodation hole, the removal of compensation piece has changed the volumetric size of high pressure chest to play the interior stream pressure's of compensation high pressure chest effect, in addition, spring cooperation diaphragm also can play the effect of stabilizing low pressure intracavity stream pressure, has guaranteed that gas outlet stream pressure is invariable, has optimized the performance of relief pressure valve.
Description
Technical field
The utility model relates to valve field, relates in particular to a kind of pressure reducer.
Background technology
In prior art, because gas cylinder internal pressure is higher, and the on-the-spot needed gas pressure of gas applicationLow, need to after being stored in the gas step-down of elevated pressures in gas cylinder, use with pressure reducer, and should ensure requiredThe operating pressure of gas keeps stable state from start to finish.
Along with the develop rapidly of the industries such as China's medical treatment, space flight, laboratory, carry occasion to gas at gasThe stability requirement of pressure is more and more higher; And in prior art for the pressure reducer structure letter of gas transportation artSingle, when gas output, pressure oscillation is larger; In addition, pressure reducer of the prior art does not have filtering function, mixedThe impurity closing in gas is easy to cause line clogging, uses very inconvenient.
Summary of the invention
A kind of pressure reducer that the utility model provides, is intended to overcome pressure reducer of the prior art simple in structure,The larger deficiency of gas pressure fluctuation of output.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of pressure reducer, bagDraw together the housing with inner chamber, in described housing, be provided with the spacing block that inner chamber is divided into high pressure chest and low-pressure cavity,The cross-sectional area of described low-pressure cavity is greater than the cross-sectional area of high pressure chest, is also provided with air inlet on described housingAnd gas outlet, described air inlet communicates with high pressure chest, and described gas outlet communicates with low-pressure cavity, described air inletInside be provided with inlet air filtration net, in described gas outlet, be provided with the screen pack of giving vent to anger, on described gas outlet, be also connected with clearlyPipe valve; On described housing, be provided with the adjusting handle that regulates gas pressure in low-pressure cavity, on described adjusting handleBe provided with the container cavity of housing case, on the sidewall of described container cavity, offer internal thread, on described housing, offerHave with container cavity sidewall on the external screw thread of screw-internal thread fit, described adjusting handle is provided with column, described housingInside be provided with and control the diaphragm of spacing block, described column between adjusting handle and diaphragm, described column withBetween diaphragm, be provided with spring, described column lower end is fixed with the holder of fixing spring, on described holder, establishesBe equipped with the lead that spring is led, described spring housing is located on lead, and described diaphragm is positioned at springAnd between spacing block, described spacing block is fixedly connected with by connector with diaphragm, on described spacing block, is provided withThe compensation block of compensation high pressure chest internal pressure fluctuation, offers on described spacing block and holds compensation block and make compensationThe accommodation hole that piece can slide, described accommodation hole communicates with high pressure chest, is also provided with joint pin on described spacing block,Described joint pin is positioned at accommodation hole, and described joint pin is coaxial with accommodation hole, and described compensation block slides and connectsBe connected on joint pin, described joint pin lower end is threaded connection avoids compensation block to skid off the spacing of joint pinPiece.
In above-mentioned formation, in air inlet, arrange in inlet air filtration net, gas outlet the screen pack of giving vent to anger, air inlet are setScreen pack and the screen pack of giving vent to anger can filter gas, have avoided the impurity blocking pipe in gas; Separately, compensation block is set in spacing block outward, when larger fluctuation appears in the air-flow in high pressure chest, because compensation block canTo play certain compensating action, greatly optimize the stability of gas outlet stream pressure, and the establishing of springPut the fluctuation that also can compensate stream pressure in high pressure chest, greatly optimized the stability of gas outlet stream pressure;And gas outlet is connected with pipe cleaning valve, pipe cleaning valve plays the effect of cleaning pipeline, has avoided the impurity in air-flow stifledPlug pipeline.
A kind of optional scheme, described adjusting handle and column are connected together, and described adjusting handle is provided withShape of cross section is circular fixture block, offers the draw-in groove coordinating with fixture block on described column, described fixture block withAdjusting handle is integral type structure. Adjusting handle and column are connected together, and column utilizes spring to position,Simplify the manufacturing process of adjusting handle, reduced the manufacturing cost of pressure-reducing valve; Fixture block is set on adjusting handle,And draw-in groove is set on column, has improved the efficiency of assembling of adjusting handle and column.
One is scheme optionally, is fixed with the projection of fixing spring on described diaphragm, and described spring housing is located at protrudingOn piece, described projection and diaphragm are integral type structure. Projection is set on diaphragm, and projection is at fixing springAlso play the effect that spring is led simultaneously, extended the service life of spring.
A kind of optional scheme, described spacing block is provided with convex shoulder, the inwall of described housing be provided with hold protrudingThe breach of shoulder. Convex shoulder coordinates with breach, has optimized the serviceability of pressure-reducing valve.
A kind of optional scheme, described holder and column are together by a threaded connection. Be convenient to pressure-reducing valveAssemble, improved the production efficiency of pressure-reducing valve.
Compared with prior art, a kind of pressure reducer that the utility model provides, tool has the following advantages: in air inletIn mouthful, be provided with inlet air filtration net, in gas outlet, be provided with the screen pack of giving vent to anger, inlet air filtration net, the screen pack of giving vent to angerPlay the effect that air-flow is filtered, in the impurity obstruction pressure-reducing valve of avoiding in air-flow, can also keep awayExempt from the impurity blocking pipe in air-flow, optimized the performance of pressure-reducing valve; In spacing block, be provided with and can slideCompensation block, compensation block can compensate the air pressure fluctuation in high pressure chest, because compensation block can be in accommodation holeSlide, the movement of compensation block has changed the size of high pressure chest volume, presses thereby play air-flow in compensation high pressure chestThe effect of power, in addition, spring matching film plate also can play the effect of stream pressure in stabilizing low voltage chamber, protectsDemonstrate,prove gas outlet stream pressure constant, optimized the performance of pressure-reducing valve; The pipe cleaning valve being connected on gas outlet risesTo the effect of cleaning impurity, further optimize the performance of pressure-reducing valve, avoid the impurity blocking pipe in air-flow.
Brief description of the drawings
Accompanying drawing 1 is the front view of a kind of pressure reducer of the utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of pressure reducer of the present utility model is described further. As shown in Figure 1,A kind of pressure reducer, comprises the housing 1 with inner chamber, and for the ease of assembling, described housing 1 can be by some sectionsAssembling shape, can adopt gas thread to connect between each section, to improve the sealing property of housing 1, described inIn housing 1, be provided with the spacing block 2 that inner chamber is divided into high pressure chest 4 and low-pressure cavity 3, the horizontal stroke of described low-pressure cavity 3Area of section is greater than the cross-sectional area of high pressure chest 4, that is to say, on the inwall of housing 1, has step;
Referring to Fig. 1, described spacing block 2 is provided with convex shoulder 25, the inwall of described housing 1 be provided with hold protrudingThe breach of shoulder 25, to improve the isolation performance of spacing block 2;
Referring to Fig. 1, on described housing 1, be also provided with air inlet 5 and gas outlet 6, described air inlet 5 and high pressureChamber 4 communicates, and described gas outlet 6 communicates with low-pressure cavity 3, in described air inlet 5, is provided with inlet air filtration net 7,In described gas outlet 6, be provided with the screen pack 8 of giving vent to anger, inlet air filtration net 7 and the screen pack 8 of giving vent to anger are prior artIn screen pack, on described gas outlet 6, be also connected with pipe cleaning valve 9, pipe cleaning valve 9 be also in prior art forThe valve of cleaning pipeline;
Referring to Fig. 1, on described housing 1, be provided with the adjusting handle 10 that regulates low-pressure cavity 3 interior gas pressures,Adjusting handle 10 should be the tubular structure of upper end closed, and described adjusting handle 10 is provided with housing case 1Container cavity 11, offers internal thread on the sidewall of described container cavity 11, offers and hold on described housing 1The external screw thread of screw-internal thread fit on 11 sidewalls of chamber, described adjusting handle 10 is provided with column 12, adjusting handleExternal screw thread on internal thread on 10 and housing 1 should have certain height, so that adjusting handle 10 canMove a segment distance to promote column 12, realize by the object of column 12 regulating spring 14 pressure, described inAdjusting handle 10 is connected together with column 12, and described adjusting handle 10 is provided with shape of cross section for circularFixture block 22, on described column 12, offer the draw-in groove 23 coordinating with fixture block 22, described fixture block 22 with adjustJoint handwheel 10 is integral type structure;
Referring to Fig. 1, in housing 1, be provided with the diaphragm 13 of controlling spacing block 2, described column 12 is positioned at tuneBetween joint handwheel 10 and diaphragm 13, between described column 12 and diaphragm 13, be provided with spring 14, described diaphragmOn 13, be fixed with the projection 24 of fixing spring 14, described spring 14 is set on projection 24, described projection24 with diaphragm 13 be integral type structure, described column 12 lower ends are fixed with the holder 15 of fixing spring 14,Described holder 15 is together by a threaded connection with column 12, on described holder 15, is provided with spring14 leads that lead 16, lead 16 is integral type structure with holder 15, described spring 14Be set on lead 16, when column 12 moves down, promoted by adjusting handle 10, column 12 upwards movesWhen moving, rely on the thrust of spring 14 to move up, therefore, spring 14 lower ends can be fixedly connected with diaphragm 13,The lower end of spring 14 also can not be fixedly connected with diaphragm 13, only needs to contact with diaphragm 13;
Referring to Fig. 1, described diaphragm 13 between spring 14 and spacing block 2, described spacing block 2 and diaphragm13 are fixedly connected with by connector 17, and connector 17 can be fixed on diaphragm 13 and isolation by bonding wayBetween piece 2, on described spacing block 2, be provided with the compensation block 18 of compensation high pressure chest 4 internal pressure fluctuations, described inOn spacing block 2, offer the accommodation hole 19 that holds compensation block 18 and compensation block 18 can be slided, described inAccommodation hole 19 communicates with high pressure chest 4, on described spacing block 2, is also provided with joint pin 20, described joint pin 20Be positioned at accommodation hole 19, joint pin 20 be integral type structure with spacing block 2, and described joint pin 20 andAccommodation hole 19 is coaxial, and described compensation block 18 is slidably connected on joint pin 20, described joint pin 20 lower endsBe threaded connection the limited block 21 of avoiding compensation block 18 to skid off joint pin 20.
When concrete enforcement, because compensation block 18 can be in the interior slip of accommodation hole 19, the movement of compensation block 18 changesBecome the size of high pressure chest 4 volumes, thereby played the effect of compensation high pressure chest 4 interior stream pressures, Jin ErbaoCard 6 places, gas outlet stream pressure constant, in addition, spring 14 matching film plates 13 also can play stablize lowPress the effect of chamber 3 interior stream pressures, optimized the performance of pressure-reducing valve.
These are only preferred embodiment of the present utility model, be intended to embody outstanding technology effect of the present utility modelFruit and advantage are not the restrictions to the technical solution of the utility model. Those skilled in the art should understand, all amendments of making based on the utility model technology contents, variation or substitute technology feature,All should be covered by the technology category of the utility model claims opinion.
Claims (5)
1. a pressure reducer, comprises the housing (1) with inner chamber, it is characterized in that: in described housing (1)Be provided with the spacing block (2) that inner chamber is divided into high pressure chest (4) and low-pressure cavity (3), described low-pressure cavity(3) cross-sectional area is greater than the cross-sectional area of high pressure chest (4), and described housing (1) is also upperBe provided with air inlet (5) and gas outlet (6), described air inlet (5) communicates with high pressure chest (4),Described gas outlet (6) communicates with low-pressure cavity (3), and described air inlet is provided with inlet air filtration in (5)Net (7), is provided with the screen pack of giving vent to anger (8) in described gas outlet (6), described gas outlet (6) are also upperBe connected with pipe cleaning valve (9); On described housing (1), be provided with and regulate the interior gas pressure of low-pressure cavity (3)Adjusting handle (10), described adjusting handle (10) is provided with the container cavity (11) of housing case (1),On the sidewall of described container cavity (11), offer internal thread, on described housing (1), offer and holdReceive the external screw thread of screw-internal thread fit on the sidewall of chamber (11), described adjusting handle (10) is provided with column(12), in described housing (1), be provided with the diaphragm (13) of controlling spacing block (2), described column(12) be positioned between adjusting handle (10) and diaphragm (13) described column (12) and diaphragm (13)Between be provided with spring (14), described column (12) lower end is fixed with the fixing of fixing spring (14)Seat (15), is provided with the lead (16) that spring (14) is led on described holder (15),It is upper that described spring (14) is set in lead (16), and described diaphragm (13) is positioned at spring (14)And between spacing block (2), described spacing block (2) is solid by connector (17) with diaphragm (13)Fixed connection, on described spacing block (2), be provided with the compensation block that compensation high pressure chest (4) internal pressure fluctuates(18), on described spacing block (2), offer and hold compensation block (18) and make compensation block (18)The accommodation hole (19) that can slide, described accommodation hole (19) communicates with high pressure chest (4), described everyOn piece (2), be also provided with joint pin (20), described joint pin (20) is positioned at accommodation hole (19),And described joint pin (20) is coaxial with accommodation hole (19), described compensation block (18) is slidably connectedUpper at joint pin (20), described joint pin (20) lower end has been threaded connection avoids compensation block (18)Skid off the limited block (21) of joint pin (20).
2. a kind of pressure reducer according to claim 1, is characterized in that: described adjusting handle (10) withColumn (12) is connected together, and it is circular that described adjusting handle (10) is provided with shape of cross sectionFixture block (22), offers the draw-in groove (23) coordinating with fixture block (22), institute on described column (12)Stating fixture block (22) is integral type structure with adjusting handle (10).
3. a kind of pressure reducer according to claim 1, is characterized in that: described diaphragm (13) is upper fixingHave the projection (24) of fixing spring (14), it is upper that described spring (14) is set in projection (24),Described projection (24) is integral type structure with diaphragm (13).
4. a kind of pressure reducer according to claim 1, is characterized in that: described spacing block is established on (2)Have convex shoulder (25), the inwall of described housing (1) is provided with the breach that holds convex shoulder (25).
5. according to a kind of pressure reducer described in claim 1 to 4 any one, it is characterized in that: described fixingSeat (15) is together by a threaded connection with column (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521132037.6U CN205244526U (en) | 2015-12-31 | 2015-12-31 | Pressure reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521132037.6U CN205244526U (en) | 2015-12-31 | 2015-12-31 | Pressure reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205244526U true CN205244526U (en) | 2016-05-18 |
Family
ID=55943605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521132037.6U Expired - Fee Related CN205244526U (en) | 2015-12-31 | 2015-12-31 | Pressure reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205244526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485391A (en) * | 2015-12-31 | 2016-04-13 | 平湖市瑞阳精密机械有限公司 | Pressure reducer |
-
2015
- 2015-12-31 CN CN201521132037.6U patent/CN205244526U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485391A (en) * | 2015-12-31 | 2016-04-13 | 平湖市瑞阳精密机械有限公司 | Pressure reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Ultra-low temperature measurement system and method for deflation testes of decompressor Effective date of registration: 20180803 Granted publication date: 20160518 Pledgee: Zhejiang Pinghu Rural Commercial Bank branch of the Dai new Limited by Share Ltd Pledgor: Pinghu Ruiyang Precision Machinery Co., Ltd. Registration number: 2018990000644 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190719 Granted publication date: 20160518 Pledgee: Zhejiang Pinghu Rural Commercial Bank branch of the Dai new Limited by Share Ltd Pledgor: Pinghu Ruiyang Precision Machinery Co., Ltd. Registration number: 2018990000644 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20191231 |