CN101832417A - Reducing valve - Google Patents
Reducing valve Download PDFInfo
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- CN101832417A CN101832417A CN201010171191A CN201010171191A CN101832417A CN 101832417 A CN101832417 A CN 101832417A CN 201010171191 A CN201010171191 A CN 201010171191A CN 201010171191 A CN201010171191 A CN 201010171191A CN 101832417 A CN101832417 A CN 101832417A
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- baffle plate
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Abstract
The invention relates to a reducing valve. A water-seal baffle is arranged between the lower end of a low pressure chamber and a high pressure chamber in the reducing valve, wherein the water-seal baffle comprises valve seats; the open hole in the center part of the water-seal baffle forms a water-seal port; the water-seal baffle is provided with a water runner which is distributed in a radial mode by taking the water-seal port as the center; the high pressure chamber is internally provided with a pressure sensing sealing water pass film of the seal water-seal baffle; the periphery of the pressure sensing sealing water pass film is compressed and fixed between the valve seats and the lower clamping cover; and the center of the pressure sensing sealing water pass film is compressed and fixed between an inner clamping ring formed by the clamping cover body and the water-seal baffle. The structure that the pressure sensing sealing water pass film and the water-seal baffle are arranged in the reducing valve of the invention has buffered action on the water pressure during opening or closing the valve; and compared with the current intercept type valve, the reducing valve of the invention is not easy to shake during operation.
Description
Technical field
The present invention relates to a kind of reduction valve.
Background technique
Along with expanding economy, the trend that water resources situation worsens has appearred in many places, and shortage of water resources and pollution are more and more serious, and city dweller's drinking water safety problem highlights.At the secondary pollution problem of city tap-water and because source water pollutes the harmful matter that renews in tap water, more and more be that the domestic water purifying machine of core filter element enters huge numbers of families with the reverse osmosis membrane.Existing domestic water purifying machine is to be the core filter element with the reverse osmosis membrane, through after the multistage pretreatment and supercharging to tap water, enters reverse osmosis membrane unit again, the pure water that produces can meet the drinking water standard of developed country fully.But in existing domestic water purifying machine, reduction valve adopts blocked or intercept type valve, and the water hydraulic pressure instability that adopts the blocked valve to flow out through reduction valve can increase with the increase that flows to reduction valve hydraulic pressure, and security and stability is lower; Adopt the intercept type valve to form dither easily, be unfavorable for popularizing.
Summary of the invention
Technical problem to be solved by this invention provides a kind of pressure limiting effect stability, is difficult for producing the reduction valve of vibrations.
The present invention solves the problems of the technologies described above the technological scheme that is adopted: reduction valve, comprise valve seat, be provided with hyperbaric chamber in the valve seat, low-pressure cavity, hyperbaric chamber, low-pressure cavity respectively with water intake, water outlet is connected, has the water shutoff baffle plate that valve seat constitutes between low-pressure cavity lower end and the hyperbaric chamber, the perforate of described water shutoff baffle plate central position constitutes the water shutoff mouth, having with the water shutoff mouth on the water shutoff baffle plate is the water flowing runner that the center distributes radially, be provided with the pressure-sensitive sealing water flowing diaphragm of sealing water shutoff baffle plate in the hyperbaric chamber, pressure-sensitive sealing water flowing diaphragm periphery is fixed between valve seat and following friction top, and pressure-sensitive sealing water flowing diaphragm center is fixed between the friction top body constitutes down interior hold-down ring and water shutoff baffle plate; The cavity that described friction top down and pressure-sensitive sealing water flowing diaphragm form constitutes source water and helps the envelope chamber, and source water helps the envelope chamber to connect by source water water flowing runner and hyperbaric chamber; Described low-pressure cavity upper end is provided with the pressure-sensitive diaphragm that bears low-pressure cavity hydraulic pressure, the pressure-sensitive diaphragm periphery is fixed between valve seat and last friction top, also be provided with the center controlling rod that passes the water shutoff mouth in the described valve seat, fixedly connected with the pressure-sensitive diaphragm central position in the upper end that the center controlling rod is positioned at low-pressure cavity, the lower end that the center controlling rod is positioned at hyperbaric chamber has the sealing head of sealing water shutoff mouth; Also be provided with the pressure-sensitive spring in the cavity that described upward friction top and pressure-sensitive diaphragm constitute, the pressure-sensitive both ends of the spring acts on pressure-sensitive diaphragm and last friction top inwall respectively.
The reduction valve of this programme is when opening, the center controlling rod moves down pushes sealing head open, source water helps inflow low-pressure cavity in water source in the envelope chamber, this moment, source water helped in the envelope chamber because water source to flow out, its hydraulic pressure reduces, be that source water helps the envelope chamber that the active force of pressure-sensitive sealing water flowing diaphragm is reduced, pressure-sensitive sealing water flowing diaphragm overcomes source water under the low-pressure cavity hydraulic action helps hydraulic pressure in the envelope chamber that the active force of this pressure-sensitive sealing water flowing diaphragm is moved down to open the water flowing runner; And the periphery of the sealing of the pressure-sensitive in this reduction valve water flowing diaphragm is fixed between valve seat and following friction top, the center is fixed between the friction top body constitutes down interior hold-down ring and water shutoff baffle plate, the suffered low-pressure cavity water pressure of pressure-sensitive sealing water flowing diaphragm front-end face was after overcoming the suffered source water of ear end face and helping envelope chamber water pressure when reduction valve was opened, because the seal membrane center is fixed on the water shutoff baffle plate, has the water flowing runner that distributes radially on the water shutoff baffle plate, the water flowing runner is along the radially-arranged list structure of radiation center, the radial length of this water flowing runner is less than the radius of seal membrane, so that sealing, its periphery was removed each water flowing runner earlier when therefore pressure-sensitive sealing water flowing diaphragm moved down under hydraulic action, the sealing of pressure-sensitive subsequently water flowing diaphragm is removed the water flowing runner by periphery to the center gradually, keeps the water route of reduction valve to be in opening state; When hydraulic pressure surpasses setting value in low-pressure cavity, hydraulic pressure overcomes the pressure-sensitive spring to the active force of pressure-sensitive diaphragm and to the active force of pressure-sensitive diaphragm it is moved up in the low-pressure cavity, fixedly connected with the pressure-sensitive diaphragm central position in controlling rod upper end, center, therefore the center controlling rod is moved upward to till the sealing head sealing water shutoff mouth thereupon, behind the sealing head sealing water shutoff mouth, pressure-sensitive sealing water flowing diaphragm seals the water flowing runner by the place, center portion earlier under the hydraulic action in Yuan Shui helps the envelope chamber, pressure-sensitive sealing water flowing diaphragm seals the water flowing runner gradually along the order from the center to the periphery then.Therefore, this pressure-sensitive sealing water flowing diaphragm of reduction valve and the structure of water shutoff baffle plate all have buffering to hydraulic pressure when opening or closing effect is compared with present intercept type valve, is difficult for producing vibrations in this reduction valve running.
Described center controlling rod sidewall has the side runner that at least one indent groove constitutes.Source water helped water source in the envelope chamber to flow into that the water source flows into the water velocity that source water helps the envelope chamber in the water velocity of low-pressure cavity and the hyperbaric chamber when this structure can be controlled sealing head away from the water shutoff mouth by the runner size of adjusting source water water flowing runner and side runner, help in the envelope chamber because water source to flow out with control source water, its hydraulic pressure reduces makes source water help the envelope chamber that the active force of pressure-sensitive sealing water flowing diaphragm is reduced, pressure-sensitive sealing water flowing diaphragm overcomes source water under the low-pressure cavity hydraulic action helps hydraulic pressure in the envelope chamber that the active force of this pressure-sensitive sealing water flowing diaphragm is moved down to open the water flowing runner, and the matching relationship of the runner size by control source water water flowing runner and side runner can make that this effect is better.
The cross section selfsealings head end of described side runner a to end of connecting low-pressure cavity increases gradually.
Described water shutoff baffle plate is the structure of indent with the end face that pressure-sensitive sealing water flowing diaphragm contacts, and the water flowing runner radially is strip along radiation center and is distributed on the water shutoff baffle plate, and described pressure-sensitive sealing water flowing diaphragm has the shape with water shutoff baffle plate concave inward structure coupling.
Described water shutoff baffle plate is a plane structure with the end face that pressure-sensitive sealing water flowing diaphragm contacts, and the water flowing runner radially is strip along radiation center and is distributed on the water shutoff baffle plate, and described pressure-sensitive sealing water flowing diaphragm has the shape with water shutoff baffle plate coupling.
Described water shutoff baffle plate is the structure of evagination with the end face that pressure-sensitive sealing water flowing diaphragm contacts, and the water flowing runner radially is strip along radiation center and is distributed on the water shutoff baffle plate, and described pressure-sensitive sealing water flowing diaphragm has the shape with water shutoff baffle plate evagination structure matching.
To sum up, the invention has the beneficial effects as follows: the pressure-sensitive sealing water flowing diaphragm that is provided with in the reduction valve and the structure of water shutoff baffle plate all have buffering to hydraulic pressure when opening or closing effect, compare with present intercept type valve, be difficult for producing vibrations in this reduction valve running.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is that the A-A of water shutoff baffle plate among Fig. 1 is to view;
Fig. 3 is the perspective view of Fig. 2;
Fig. 4 is the structural representation of center controlling rod among Fig. 1;
Fig. 5 is the perspective view of Fig. 4;
Fig. 6 is that the B-B of Fig. 4 is to view;
Fig. 7 is the structural representation of the embodiment of the invention 2;
Fig. 8 is that the A-A of water shutoff baffle plate among Fig. 7 is to view;
Fig. 9 is the perspective view of Fig. 8;
Figure 10 is the structural representation of center controlling rod among Fig. 7;
Figure 11 is the perspective view of Figure 10;
Figure 12 is that the B-B of Figure 10 is to view;
Figure 13 is the structural representation of the embodiment of the invention 3;
Figure 14 is that the A-A of water shutoff baffle plate among Figure 13 is to view;
Figure 15 is the perspective view of Figure 14;
Figure 16 is the structural representation of center controlling rod among Figure 13;
Figure 17 is the perspective view of Figure 16;
Figure 18 is that the B-B of Figure 16 is to view;
Figure 19 is the structural representation of the embodiment of the invention 4;
Figure 20 is that the A-A of water shutoff baffle plate among Figure 19 is to view;
Figure 21 is the perspective view of Figure 20;
Figure 22 is the structural representation of center controlling rod among Figure 19;
Figure 23 is the perspective view of Figure 22;
Figure 24 is that the B-B of Figure 22 is to view;
Figure 25 is the structural representation of the embodiment of the invention 5;
Figure 26 is that the A-A of water shutoff baffle plate among Figure 25 is to view;
Figure 27 is the perspective view of Figure 26;
Figure 28 is the structural representation of center controlling rod among Figure 25;
Figure 29 is the perspective view of Figure 28;
Figure 30 is that the B-B of Figure 28 is to view.
Mark and corresponding component title among the figure: 101-water outlet, the 102-valve seat, the 103-low-pressure cavity, the 104-pressure-sensitive diaphragm, 105-center controlling rod, 106-spring pad spare, 107-pressure-sensitive spring, 108-spring adjusting element, the 109-vent, the last friction top of 110-, the 111-hyperbaric chamber, 112-source water water intake, 113-source water water flowing runner, 114-water flowing runner, 115-pressure-sensitive sealing water flowing diaphragm, the 116-water port, 117-water shutoff mouth, 118-sealing head, 119-helps the envelope spring, press ring in the 120-, 121-sealing head fixed block, 122-source water help the envelope chamber, friction top under the 123-, water seal water place, 124-source, 125-water shutoff baffle plate, 126-side runner, the 201-water outlet, the 202-valve seat, 203-low-pressure cavity, 204-pressure-sensitive diaphragm, 205-center controlling rod, 206-spring pad spare, 207-pressure-sensitive spring, 208-spring adjusting element, the 209-vent, the last friction top of 210-, 211-hyperbaric chamber, 212-source water water intake, 213-source water water flowing runner, 214-water flowing runner, 215-pressure-sensitive sealing water flowing diaphragm, 216-water-flowing trough, 217-water shutoff mouth, 218-sealing head, 219-help the envelope spring, 220-sealing head fixed block, press ring in the 221-, 222-source water helps envelope chamber, friction top under the 223-, water seal water place, 224-source, 225-water shutoff plate washer, 226-side runner, 301-water outlet, 302-valve seat, the 303-low-pressure cavity, the 304-pressure-sensitive diaphragm, 305-center controlling rod, 306-spring pad spare, 307-pressure-sensitive spring, 308-spring adjusting element, 309-vent, the last friction top of 310-, the 311-hyperbaric chamber, 312-source water water intake, 313-source water water flowing runner, 314-water flowing runner, 315-pressure-sensitive sealing water flowing diaphragm, the 316-water-flowing trough, 317-water shutoff mouth, 318-sealing head, 319-helps the envelope spring, 320-sealing head fixed block presses ring in the 321-, 322-source water helps the envelope chamber, friction top under the 323-, 324-water shutoff baffle plate, water seal water place, 325-source, 326-side runner, the 401-water outlet, the 402-valve seat, 403-low-pressure cavity, 404-pressure-sensitive diaphragm, 405-center controlling rod, 406-spring pad spare, 407-pressure-sensitive spring, 408-spring adjusting element, the 409-vent, the last friction top of 410-, 411-hyperbaric chamber, 412-source water water intake, 413-source water water flowing runner, 414-water flowing runner, 415-pressure-sensitive sealing water flowing diaphragm, 416-water port, 417-water shutoff mouth, 418-sealing head, 419-help the envelope spring, press ring in the 420-, 421-sealing head fixed block, 422-source water helps envelope chamber, friction top under the 423-, water seal water place, 424-source, 425-water shutoff baffle plate, 426-side runner, 701-water outlet, 702-valve seat, the 703-low-pressure cavity, the 704-pressure-sensitive diaphragm, 705-center controlling rod, 706-spring pad spare, 707-pressure-sensitive spring, 708-spring adjusting element, 709-vent, the last friction top of 710-, the 711-hyperbaric chamber, 712-source water water intake, 713-source water water flowing runner, 714-water flowing runner, 715-pressure-sensitive sealing water flowing diaphragm, the 716-water port, 717-water shutoff mouth, 718-disjunctor sealing head, 719-helps the envelope spring, 720-disjunctor muscle presses ring in the 721-, 722-source water helps the envelope chamber, friction top under the 723-, water seal water place, 724-source, 725-water shutoff baffle plate, 726-side runner.
Embodiment
Embodiment 1:
Extremely shown in Figure 6 as Fig. 1, reduction valve of the present invention comprises valve seat 102, be provided with hyperbaric chamber 111 in the valve seat 102, low-pressure cavity 103, hyperbaric chamber 111, low-pressure cavity 103 respectively with water intake 112, water outlet 101 is connected, has the water shutoff baffle plate 125 that valve seat 102 constitutes between low-pressure cavity 103 lower ends and the hyperbaric chamber 111, the perforate of described water shutoff baffle plate 125 central positions constitutes water shutoff mouth 117, having with water shutoff mouth 117 on the water shutoff baffle plate 125 is the water flowing runner 114 that the center distributes radially, be provided with the pressure-sensitive sealing water flowing diaphragm 115 of sealing water shutoff baffle plate 125 in the hyperbaric chamber 111, pressure-sensitive sealing water flowing diaphragm 115 peripheries are fixed between valve seat 102 and following friction top 123, and pressure-sensitive sealing water flowing diaphragm 115 centers are fixed between friction top 123 bodies constitute down interior hold-down ring 120 and water shutoff baffle plate 125; Described friction top 123 down helps envelope chamber 122 with the cavity formation source water that pressure-sensitive sealing water flowing diaphragm 115 forms, and source water helps envelope chamber 122 by source water water flowing runner 113 and hyperbaric chamber 111 connections, and water water flowing runner 113 in source is made of the water flowing runner that forms on the valve seat 102; Described low-pressure cavity 103 upper ends are provided with the pressure-sensitive diaphragm 104 that bears low-pressure cavity hydraulic pressure, pressure-sensitive diaphragm 104 peripheries are fixed between valve seat 102 and last friction top 110, also be provided with the center controlling rod 105 that passes water shutoff mouth 117 in the described valve seat 102, fixedly connected with pressure-sensitive diaphragm 104 central positions in the upper end that center controlling rod 105 is positioned at low-pressure cavity 103, the lower end that center controlling rod 105 is positioned at hyperbaric chamber 111 has the sealing head 127 of sealing water shutoff mouth 117; Also be provided with pressure-sensitive spring 107 in the cavity that described upward friction top 110 and pressure-sensitive diaphragm 104 constitute, pressure-sensitive spring 107 1 ends act on friction top 110 inwalls, and the other end acts on pressure-sensitive diaphragm 104 by spring pad spare 106; Described center controlling rod 105 sidewalls have the side runner 126 that three equally distributed indent grooves constitute, and the cross section selfsealings head end of this side runner 126 a to end of connecting low-pressure cavity increases gradually; Described water shutoff baffle plate 125 is the structure of indent with the end face that pressure-sensitive sealing water flowing diaphragm 115 contacts, water flowing runner 114 radially is strip along radiation center and is distributed on the water shutoff baffle plate 125, and described pressure-sensitive sealing water flowing diaphragm 115 has the shape with water shutoff baffle plate 125 concave inward structures coupling.
Embodiment 2:
Extremely shown in Figure 12 as Fig. 7, the reduction valve of present embodiment and embodiment's 1 difference is, water shutoff baffle plate 225 in the present embodiment reduction valve is a plane structure with the end face that pressure-sensitive sealing water flowing diaphragm 215 contacts, water flowing runner 214 radially is strip along radiation center and is distributed on the water shutoff baffle plate 225, and described pressure-sensitive sealing water flowing diaphragm 215 has the shape with water shutoff baffle plate 225 couplings.Other each modular constructions of present embodiment and structure are identical with embodiment 1.
Embodiment 3:
Extremely shown in Figure 180 as Figure 13, the reduction valve of present embodiment and embodiment's 1 difference is, water shutoff baffle plate 325 in the present embodiment reduction valve is the structure of evagination with the end face that pressure-sensitive sealing water flowing diaphragm 316 contacts, water flowing runner 315 radially is strip along radiation center and is distributed on the water shutoff baffle plate 325, and described pressure-sensitive sealing water flowing diaphragm 316 has the shape with water shutoff baffle plate 325 evagination structure matching.Other each modular constructions of present embodiment and structure are identical with embodiment 1.
Embodiment 4:
Extremely shown in Figure 24 as Figure 19, the reduction valve of present embodiment and embodiment's 1 difference is, the source water water flowing runner 413 that helps envelope chamber 422 and hyperbaric chamber 411 to connect in source water in the present embodiment reduction valve is not to be made of the water flowing runner that forms on the valve seat 402, but constitute by the perforate on the pressure-sensitive sealing water flowing diaphragm 415, the upper and lower aperture of this perforate helps the envelope chamber to connect with hyperbaric chamber, Yuan Shui respectively, and the number of this perforate can be one or more.Other each modular constructions of present embodiment and structure are identical with embodiment 1.
Obviously, the Jiang Yuanshui on the embodiment of the invention 2, the embodiment 3 helps the structure of the source water water flowing runner of envelope chamber and hyperbaric chamber connection also can be helped the structure of the source water water flowing runner that seals chamber and hyperbaric chamber connection identical by the Jiang Yuanshui among the embodiment 4.
Embodiment 5:
Extremely shown in Figure 30 as Figure 25, the reduction valve of present embodiment and embodiment's 4 difference is, the center of the pressure-sensitive sealing water flowing diaphragm 715 in the present embodiment reduction valve is fixed between the outside gland that the toroidal protrusion of the perforate periphery of interior hold-down ring 721 that following friction top 723 bodies constitute and water shutoff baffle plate 725 central positions constitutes, outside gland is protruded by toroidal and the annular indent groove of lower end constitutes, pressure-sensitive sealing water flowing diaphragm 715 center upsides have protruding in the unidirectional ring of sealing of gland lower end, the outside, seal that unidirectional ring is fixed in the annular indent groove of gland lower end, the outside and with the sealing of gland lower end, outside banding, the center of pressure-sensitive sealing water flowing diaphragm 715 also couples together center portion and the disjunctor sealing head 718 that pressure-sensitive seals water flowing diaphragm 715 by at least one disjunctor muscle 720.Other each modular constructions of present embodiment and structure are identical with embodiment 4.
Obviously, the various embodiments of embodiments of the invention 1 described in the embodiment 4, the center portion of its pressure-sensitive sealing water flowing diaphragm 715 compress the sealing and fixing structure and with the linkage structure of sealing head, can be with reference to the structure setting of present embodiment.
Claims (6)
1. reduction valve, comprise valve seat (102), be provided with hyperbaric chamber (111) in the valve seat (102), low-pressure cavity (103), hyperbaric chamber (111), low-pressure cavity (103) respectively with water intake (112), water outlet (101) is connected, has the water shutoff baffle plate (125) that valve seat (102) constitutes between low-pressure cavity (103) lower end and the hyperbaric chamber (111), it is characterized in that, the perforate of described water shutoff baffle plate (125) central position constitutes water shutoff (117), having with water shutoff mouth (117) on the water shutoff baffle plate (125) is the water flowing runner (114) that the center distributes radially, be provided with the pressure-sensitive sealing water flowing diaphragm (115) of sealing water shutoff baffle plate (125) in the hyperbaric chamber (111), pressure-sensitive sealing water flowing diaphragm (115) periphery is fixed between valve seat (102) and following friction top (123), and pressure-sensitive sealing water flowing diaphragm (115) center is fixed between friction top (123) body constitutes down interior hold-down ring (120) and water shutoff baffle plate (125); Described friction top (123) down helps envelope chamber (122) with the cavity formation source water that pressure-sensitive sealing water flowing diaphragm (115) forms, and source water helps envelope chamber (122) by source water water flowing runner (113) and hyperbaric chamber (111) connection; Described low-pressure cavity (103) upper end is provided with the pressure-sensitive diaphragm (104) that bears low-pressure cavity hydraulic pressure, pressure-sensitive diaphragm (104) periphery is fixed between valve seat (102) and last friction top (110), also be provided with the center controlling rod (105) that passes water shutoff mouth (117) in the described valve seat (102), fixedly connected with pressure-sensitive diaphragm (104) central position in the upper end that center controlling rod (105) is positioned at low-pressure cavity (103), the lower end that center controlling rod (105) is positioned at hyperbaric chamber (111) has the sealing head (127) of sealing water shutoff (117); Also be provided with pressure-sensitive spring (107) in the cavity that described upward friction top (110) and pressure-sensitive diaphragm (104) constitute, pressure-sensitive spring (107) two ends act on pressure-sensitive diaphragm (104) and last friction top (110) inwall respectively.
2. reduction valve according to claim 1 is characterized in that, described center controlling rod (105) sidewall has the side runner (126) that at least one indent groove constitutes.
3. reduction valve according to claim 2 is characterized in that, the cross section selfsealings head end of described side runner (126) a to end of connecting low-pressure cavity increases gradually.
4. according to the described reduction valve of claim 1 to 3, it is characterized in that, described water shutoff baffle plate (125) is the structure of indent with the end face that pressure-sensitive sealing water flowing diaphragm (115) contacts, water flowing runner (114) radially is strip along radiation center and is distributed on the water shutoff baffle plate (125), and described pressure-sensitive sealing water flowing diaphragm (115) has the shape with water shutoff baffle plate (125) concave inward structure coupling.
5. according to the described reduction valve of claim 1 to 3, it is characterized in that, described water shutoff baffle plate (225) is a plane structure with the end face that pressure-sensitive sealing water flowing diaphragm (215) contacts, water flowing runner (214) radially is strip along radiation center and is distributed on the water shutoff baffle plate (225), and described pressure-sensitive sealing water flowing diaphragm (215) has the shape with water shutoff baffle plate (225) coupling.
6. according to the described reduction valve of claim 1 to 3, it is characterized in that, described water shutoff baffle plate (325) is the structure of evagination with the end face that pressure-sensitive sealing water flowing diaphragm (316) contacts, water flowing runner (315) radially is strip along radiation center and is distributed on the water shutoff baffle plate (325), and described pressure-sensitive sealing water flowing diaphragm (316) has the shape with water shutoff baffle plate (325) evagination structure matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010171191A CN101832417A (en) | 2010-05-13 | 2010-05-13 | Reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010171191A CN101832417A (en) | 2010-05-13 | 2010-05-13 | Reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101832417A true CN101832417A (en) | 2010-09-15 |
Family
ID=42716585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010171191A Pending CN101832417A (en) | 2010-05-13 | 2010-05-13 | Reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101832417A (en) |
-
2010
- 2010-05-13 CN CN201010171191A patent/CN101832417A/en active Pending
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| PB01 | Publication | ||
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Open date: 20100915 |