CN203009905U - Decompression reflux flow valve and water purification system formed by decompression reflux flow valve - Google Patents
Decompression reflux flow valve and water purification system formed by decompression reflux flow valve Download PDFInfo
- Publication number
- CN203009905U CN203009905U CN 201320032298 CN201320032298U CN203009905U CN 203009905 U CN203009905 U CN 203009905U CN 201320032298 CN201320032298 CN 201320032298 CN 201320032298 U CN201320032298 U CN 201320032298U CN 203009905 U CN203009905 U CN 203009905U
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- water
- pressure
- cavity
- reduced
- inlet
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 254
- 238000000746 purification Methods 0.000 title claims abstract description 15
- 230000006837 decompression Effects 0.000 title abstract 6
- 238000010992 reflux Methods 0.000 title abstract 6
- 238000007789 sealing Methods 0.000 claims description 21
- 238000001223 reverse osmosis Methods 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 7
- 238000011010 flushing procedure Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005406 washing Methods 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 description 16
- 239000012528 membrane Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses a decompression reflux flow valve. The decompression reflux flow valve comprises a valve body (02) and a lower cover (17), wherein the lower cover (17) is connected with the valve body (02) in a sealed mode, the valve body (02) is provided with a water inlet (01) and a water inlet (02), and the lower cover (17) is provided with a water returning opening (16). A water inlet cavity and a water communication runner (14) are formed inside the valve body (02), wherein the water inlet cavity is communicated with the water inlet (01), the water communication runner (14) is used for communicating the water outlet (11) and the water returning opening (16), and the water communication runner (14) is communicated with the water inlet cavity. A low pressure cavity (09) and a pressure limiting component are arranged on a channel, wherein the channel is capable of communicating the water communication runner (14) and the water inlet cavity, and the pressure limiting component is capable of controlling water flows to be converted under the opened state and the closed state between the water inlet cavity and the low pressure cavity (09) under the water pressure function inside the low pressure cavity (09). The utility model further discloses a water purification system which is formed by the decompression reflux flow valve. The decompression reflux flow valve and the water purification system are simple in whole structure and convenient to achieve, and when the water purification system is applied, recycle to washing water is convenient to carry out, and resources are saved.
Description
Technical field
The utility model relates to the water-treating equipment of a kind of water flow control valve and formation thereof, specifically the pure water machine system of reduced-pressure backflow valve and formation thereof.
Background technique
Water resource pollution is more and more serious now, and city dweller's water safety problem highlights.Pollute the harmful matter that exists in tap water for the secondary pollution problem of city tap-water and because of source water, increasing water purification machine is applied.For the water purification quality that guarantees that water purification machine is made, people usually rinse the reverse osmosis membrane group in pure water machine system, and the sparge water that existing pure water machine system produces when rinsing the reverse osmosis membrane group directly emits, and this has caused the waste of great lot of water resources.
The model utility content
The purpose of this utility model is to solve existing pure water machine system when the reverse osmosis membrane group is rinsed sparge water is the wasting of resources problem that causes of discharging directly, a kind of reduced-pressure backflow valve is provided, it can be controlled in the water making pipe road that sparge water is back to water purification machine, and then reach the recycling purpose of water resources, the pure water machine system that saving resource, the utility model also provide this reduced-pressure backflow valve to consist of.
The purpose of this utility model is achieved through the following technical solutions: the reduced-pressure backflow valve, comprise valve body and the lower cover that is connected with valve seal, described valve body is provided with water intake and water outlet, under be covered with backwater mouth, consist of in valve body the water-inlet cavity of connecting water intake and the water flowing runner of connecting water outlet and backwater mouth are arranged, described water flowing runner and water-inlet cavity are connected, the passage that water flowing runner and water-inlet cavity are connected is provided with low-pressure cavity, and is subjected to the interior Water Pressure of low-pressure cavity to control the pressure limiting assembly that between water-inlet cavity and low-pressure cavity, current are changed under the switching two states.
Described valve body is connected with the water-stop sheet of separating water-inlet cavity and low-pressure cavity, described water-stop sheet consists of the water cut off device of connecting water-inlet cavity and low-pressure cavity, and described pressure limiting assembly comprises and is positioned at water-inlet cavity and is subjected to low-pressure cavity Water Pressure control water cut off device whether to connect the water shutoff plate of water-inlet cavity and low-pressure cavity.Whether pressure limiting assembly of the present utility model seals sealing and controls between water-inlet cavity and low-pressure cavity current and change under the switching two states by controlling the water shutoff plate, simple in structure, convenient operation.
described valve body is connected with upper cover, top cap is connected to adjusting element, described pressure limiting assembly also comprises the pressure-sensitive spring, top board, pressure-sensitive diaphragm, press table and controlling rod, described pressure-sensitive diaphragm peripheral sealing is fixed between valve body and upper cover, pressure-sensitive diaphragm, consist of between upper cover and adjusting element three accommodating cavity is arranged, pressure-sensitive spring and top board all are positioned at this accommodating cavity, top board is connected in the pressure-sensitive diaphragm central position, the pressure-sensitive both ends of the spring acts on respectively top board and adjusting element, press table is positioned at low-pressure cavity and is connected in the central position of pressure-sensitive diaphragm lower end surface, described controlling rod upper end is connected in the press table lower end surface, the controlling rod lower end is passed water cut off device and is arranged in water-inlet cavity, described water shutoff plate is arranged on controlling rod.Low-pressure cavity hydraulic pressure of the present utility model directly acts on pressure-sensitive diaphragm, pressure-sensitive diaphragm passes to controlling rod with the Water Pressure power of the low-pressure cavity that is subject to again, and moved up and down by controlling rod drive water shutoff plate, and then reach the control that in low-pressure cavity, whether hydraulic pressure control water shutoff plate seals water cut off device.In the low-pressure cavity that the control of water shutoff plate sealing water cut off device is mainly born by pressure-sensitive diaphragm, different hydraulic pressure is regulated, when low-pressure cavity to the pressure of pressure-sensitive diaphragm during greater than the force value of the pressure limiting assembly sealing water cut off device of setting, pressure-sensitive diaphragm drives on controlling rod and moves, and then drives water shutoff plate sealing water cut off device.
Described pressure limiting assembly also comprises and helps the envelope spring, and the described envelope both ends of the spring that helps acts on respectively water-inlet cavity inwall and water shutoff plate lower end surface.
Described water-stop sheet lower end surface is connected with sealing gasket, and described sealing gasket consists of water cut off device size coupling, opening corresponding to position.The utility model connects sealing gasket by the lower end surface at water-stop sheet, the water shutoff plate contacts with sealing gasket when the sealing water cut off device, sealability when sealing gasket can not only improve water shutoff plate sealing water cut off device, and can cushion water shutoff plate sealing water cut off device the time to the impact force of water-stop sheet, caused vibrations when having reduced water shutoff plate sealing water cut off device.
The pure water machine system that above-mentioned reduced-pressure backflow valve consists of, comprise former water intake pipe, reduced-pressure backflow valve, first-level filtering group, secondary filter group, three grades of filter groups, supercharging water shutting pump, reverse osmosis filter group, high-voltage switch gear and clear water faucets of connecting in turn, described reverse osmosis filter group is provided with one-way water-purifying joint and dense water swivel, high-voltage switch gear is connected with the one-way water-purifying joint, and the water intake of described reduced-pressure backflow valve, water outlet, backwater mouth three connect with the dense water swivel of former water intake pipe, first-level filtering group and reverse osmosis filter group respectively.
Described pure water machine system also comprises the setting-out water butt, described setting-out water butt is provided with water-purifying cavity and connects the water purification mouth of water-purifying cavity, be serially connected with tee union on pipeline between described high-voltage switch gear and clear water faucet, three interfaces of described tee union are connected with the water purification mouth of high-voltage switch gear, clear water faucet and setting-out water butt respectively.
Described pure water machine system also comprises inlet triplet for water, and described former water intake pipe is connected on inlet triplet for water, and the water intake of described reduced-pressure backflow valve is connected with former water intake pipe by being connected on inlet triplet for water.The utility model is by setting up inlet triplet for water, can open another outer interface of two interfaces that inlet triplet for water connects former water intake pipe and reduced-pressure backflow valve, and then sparge water and Yuan Shui are carried out earial drainage, avoids pure water mechanism water water route to damage because hydraulic pressure is excessive.
Described pure water machine system also comprises the flushing return flow solenoid valve, rinse return flow solenoid valve and be provided with dense water inlet, dense water out and backflow interface, dense water inlet is connected with dense water swivel, and the backwater mouth of described reduced-pressure backflow valve is connected with dense water swivel by being connected on the backflow interface that rinses return flow solenoid valve.The utility model is by setting up the flushing return flow solenoid valve, normally control the dense water inlet that rinses return flow solenoid valve and the pathway closure between the backflow interface during water processed at pure water machine system of the present utility model, dense water is discharged by dense water out, connect and control the dense water inlet and the passage between the backflow interface that rinse return flow solenoid valve when the reverse osmosis membrane group is rinsed, carry out carrying out recycling to sparge water.Because the discharge amount of dense water is few, and the impurity in dense water is more, increases the weight of pollution to water purification machine water making pipe road if dense water is carried out recycling meeting, and this will increase the frequency of flushing.The utility model only carries out recycling to sparge water by the control of flushing return flow solenoid valve, saved resource, and avoided dense water is recycled.
compared with prior art, the utlity model has following beneficial effect: reduced-pressure backflow valve of the present utility model comprises valve body and the lower cover that is connected with valve seal, wherein, valve body is provided with water intake and water outlet, under be covered with backwater mouth, consist of in valve body the water flowing runner is arranged, the passage that water flowing runner and water-inlet cavity are connected is provided with low-pressure cavity and pressure limiting assembly, adopt said structure, overall structure is simple, be convenient to realize, reduced-pressure backflow valve of the present utility model is by arranging the backwater mouth of connecting with water outlet on valve body, the dense water swivel of backwater mouth and reverse osmosis membrane group is connected when using, the sparge water that the reverse osmosis membrane group is rinsed rear discharge can enter in reduced-pressure backflow valve of the present utility model by backwater mouth, and enter the water making pipe road of pure water machine system from water outlet, so, can again utilize sparge water, save water resources.
Description of drawings
Fig. 1 is the structural representation of reduced-pressure backflow valve in the utility model embodiment;
Fig. 2 is the structural representation of pure water machine system in the utility model embodiment.
in accompanying drawing, the corresponding name of reference character is called: 01-water intake, 02-valve body, 03-upper cover, 04-adjusting element, 05-pressure-sensitive spring, 06-top board, 07-pressure-sensitive diaphragm, 08-press table, 09-low-pressure cavity, 10-water-stop sheet, 11-water outlet, 12-sealing gasket, 13-controlling rod, 14-water flowing runner, 15-water shutoff plate, 16-backwater mouth, 17-lower cover, 18-help the envelope spring, 19-seal ring, 20-water cut off device, 101-inlet triplet for water, 102-first-level filtering group, 103-secondary filter group, 104-three grades of filter groups, 105-supercharging water shutting pump, 106-reverse osmosis membrane group, 107-one-way water-purifying joint, 108-high-voltage switch gear, 109-clear water faucet, 110-tee union, the dense water pipe of 111-choked flow row, 112-flushing return flow solenoid valve, 113-pressure water storage barrel, 114-backflow interface, 115-reduced-pressure backflow valve.
Embodiment
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing, but mode of execution of the present utility model is not limited to this.
Embodiment 1:
As shown in Figure 1, the reduced-pressure backflow valve comprises valve body 02 and the upper cover 03 and the lower cover 17 that are connected with valve body 02, and the mode that upper cover 03 mates by screw thread is connected with adjusting element 04.Valve body 02 is provided with water intake 01 and water outlet 11, lower cover 17 is provided with backwater mouth 16, the interior formation of valve body 02 has the water-inlet cavity of connecting water intake 01 and the water flowing runner 14 of connecting water outlet 11 and backwater mouth 16, wherein, the passage that water flowing runner 14 is connected with water-inlet cavity and water flowing runner 14 and water-inlet cavity are connected is provided with low-pressure cavity 09, is provided with in water flowing runner 14 to be connected with lower cover with valve body 02 to be connected and the seal ring 19 of sealed valve body 02 and lower cover 17 gaps.
Valve body 02 is connected with the water-stop sheet 10 of separating water-inlet cavity and low-pressure cavity 09, water-stop sheet 10 consists of the water cut off device 20 of connecting water-inlet cavity and low-pressure cavity 09, and the passage that water flowing runner 14 and water-inlet cavity are connected is provided with and is subjected to the interior Water Pressure of low-pressure cavity 09 to control the pressure limiting assembly that between water-inlet cavity and low-pressure cavity 09, current are changed under the switching two states.The pressure limiting assembly comprises pressure-sensitive spring 05, top board 06, pressure-sensitive diaphragm 07, press table 08, helps envelope spring 18, water shutoff plate 15 and controlling rod 13, wherein, pressure-sensitive diaphragm 07 peripheral sealing is fixed between valve body 02 and upper cover 03, and low-pressure cavity 09 is made of the zone between pressure-sensitive diaphragm 07 and water-stop sheet 10.Consist of between pressure-sensitive diaphragm 07, upper cover 03 and adjusting element 04 three accommodating cavity is arranged, adjusting element 04 consists of the pore of connecting this accommodating cavity, pressure-sensitive spring 05 and top board 06 all are positioned at this accommodating cavity, top board 06 is connected in pressure-sensitive diaphragm 07 central position, pressure-sensitive spring 05 two ends act on respectively top board 06 and adjusting element 04, press table 08 is positioned at low-pressure cavity 09 and is connected in the central position of pressure-sensitive diaphragm 07 lower end surface, controlling rod 13 upper ends are connected in press table 08 lower end surface, and controlling rod 13 lower ends are passed water cut off device 20 and are arranged in water-inlet cavity.Water shutoff plate 15 and help envelope spring 18 all to be positioned at water-inlet cavity helps envelope spring 18 two ends to act on respectively water-inlet cavity inwall and water shutoff plate 15 lower end surfaces.Water shutoff plate 15 is arranged on controlling rod 13, and in order to guarantee the stable of linkage structure between water shutoff plate 15 and controlling rod 13, as preferably, controlling rod 13 becomes one with water shutoff plate 15.Water-stop sheet 10 lower end surfaces are connected with sealing gasket 12, and sealing gasket 12 consists of water cut off device 20 size couplings, opening corresponding to position.When the reduced-pressure backflow valve of the present embodiment is used, the pressure limiting assembly is subjected to the interior Water Pressure of low-pressure cavity 09 to control controlling rod 13 by its pressure-sensitive diaphragm 07 to move, and then control water shutoff plate 15 by controlling rod 13 and whether seal water cut off device 20, so reach the control of whether water cut off device 20 being connected water-inlet cavity and low-pressure cavity 09.
as shown in Figures 1 and 2, the pure water machine system that the reduced-pressure backflow valve consists of, comprise the former water intake pipe of connecting in turn, reduced-pressure backflow valve 115, first-level filtering group 102, secondary filter group 103, three grades of filter groups 104, supercharging water shutting pump 105, reverse osmosis filter group 106, high-voltage switch gear 108 and clear water faucet 109, wherein, reverse osmosis filter group 106 is provided with one-way water-purifying joint 107 and dense water swivel, high-voltage switch gear 108 is connected with one-way water-purifying joint 107, the water intake 01 of reduced-pressure backflow valve 115, water outlet 11, backwater mouth 16 threes respectively with former water intake pipe, the dense water swivel of first-level filtering group 102 and reverse osmosis filter group 106 is connected.Pure water machine system also comprises inlet triplet for water 101 and setting-out water butt 113, wherein, former water intake pipe is connected on inlet triplet for water 101, the water intake 01 of reduced-pressure backflow valve 115 is connected with former water intake pipe by being connected on inlet triplet for water 101, namely two interfaces in 101 3 interfaces of inlet triplet for water respectively with the water intake 01 of reduced-pressure backflow valve be connected the water intake pipe and be connected.Setting-out water butt 113 is provided with water-purifying cavity and connects the water purification mouth of water-purifying cavity, be serially connected with tee union 110 on pipeline between high-voltage switch gear 108 and clear water faucet 109, three interfaces of tee union 110 are connected with the water purification mouth of high-voltage switch gear 108, clear water faucet 109 and setting-out water butt 113 respectively.
Embodiment 2:
The present embodiment and embodiment's 1 the main distinction is that the present embodiment has increased following structure on embodiment 1 basis: the pure water machine system of the present embodiment also comprises flushing return flow solenoid valve 112, rinse return flow solenoid valve 112 and be provided with dense water inlet, dense water out and backflow interface 114, dense water inlet is connected with dense water swivel, the backwater mouth 16 of reduced-pressure backflow valve 115 is connected with dense water swivel by being connected on the backflow interface 114 that rinses return flow solenoid valve 112, and the dense water out that rinses return flow solenoid valve 112 is connected with the dense water pipe 111 of choked flow row.
Above content is the further description of the utility model being done in conjunction with concrete preferred implementation, can not assert that embodiment of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, not breaking away from other mode of executions that draw under the technical solution of the utility model, all should be included in protection domain of the present utility model.
Claims (9)
1. reduced-pressure backflow valve, it is characterized in that: comprise valve body (02) and the lower cover (17) that is tightly connected with valve body (02), described valve body (02) is provided with water intake (01) and water outlet (11), lower cover (17) is provided with backwater mouth (16), consist of the water-inlet cavity that connection water intake (01) is arranged and the water flowing runner (14) of connecting water outlet (11) and backwater mouth (16) in valve body (02), described water flowing runner (14) is connected with water-inlet cavity, water flowing runner (14) is provided with low-pressure cavity (09) with the passage that water-inlet cavity is connected, and be subjected to the interior Water Pressure of low-pressure cavity (09) to control that between water-inlet cavity and low-pressure cavity (09), current are leading to, the pressure limiting assembly of changing under disconnected two states.
2. reduced-pressure backflow valve according to claim 1, it is characterized in that: described valve body (02) is connected with the water-stop sheet (10) of separating water-inlet cavity and low-pressure cavity (09), described water-stop sheet (10) consists of the water cut off device (20) of connecting water-inlet cavity and low-pressure cavity (09), and described pressure limiting assembly comprises and is positioned at water-inlet cavity and is subjected to low-pressure cavity (09) Water Pressure control water cut off device (20) whether to connect the water shutoff plate (15) of water-inlet cavity and low-pressure cavity (09).
3. reduced-pressure backflow valve according to claim 2, it is characterized in that: described valve body (02) is connected with upper cover (03), upper cover (03) is connected with adjusting element (04), described pressure limiting assembly also comprises pressure-sensitive spring (05), top board (06), pressure-sensitive diaphragm (07), press table (08) and controlling rod (13), described pressure-sensitive diaphragm (07) peripheral sealing is fixed between valve body (02) and upper cover (03), pressure-sensitive diaphragm (07), consist of between upper cover (03) and adjusting element (04) three accommodating cavity is arranged, pressure-sensitive spring (05) and top board (06) all are positioned at this accommodating cavity, top board (06) is connected in pressure-sensitive diaphragm (07) central position, pressure-sensitive spring (05) two ends act on respectively top board (06) and adjusting element (04), press table (08) is positioned at low-pressure cavity (09) and is connected in the central position of pressure-sensitive diaphragm (07) lower end surface, described controlling rod (13) upper end is connected in press table (08) lower end surface, controlling rod (13) lower end is passed water cut off device (20) and is arranged in water-inlet cavity, described water shutoff plate (15) is arranged on controlling rod (13).
4. reduced-pressure backflow valve according to claim 3 is characterized in that: described pressure limiting assembly also comprises and helps envelope spring (18), and described envelope spring (18) two ends of helping act on respectively water-inlet cavity inwall and water shutoff plate (15) lower end surface.
5. reduced-pressure backflow valve according to claim 2 is characterized in that: described water-stop sheet (10) lower end surface is connected with sealing gasket (12), and described sealing gasket (12) consists of water cut off device (20) size coupling, opening corresponding to position.
6. the pure water machine system that in claim 1～5, the described reduced-pressure backflow valve of any one consists of, it is characterized in that: comprise the former water intake pipe of connecting in turn, reduced-pressure backflow valve (115), first-level filtering group (102), secondary filter group (103), three grades of filter groups (104), supercharging water shutting pump (105), reverse osmosis filter group (106), high-voltage switch gear (108) and clear water faucet (109), described reverse osmosis filter group (106) is provided with one-way water-purifying joint (107) and dense water swivel, high-voltage switch gear (108) is connected with one-way water-purifying joint (107), the water intake (01) of described reduced-pressure backflow valve (115), water outlet (11), backwater mouth (16) three respectively with former water intake pipe, the dense water swivel of first-level filtering group (102) and reverse osmosis filter group (106) is connected.
7. the pure water machine system that consists of of reduced-pressure backflow valve according to claim 6, it is characterized in that: described pure water machine system also comprises setting-out water butt (113), described setting-out water butt (113) is provided with water-purifying cavity and connects the water purification mouth of water-purifying cavity, be serially connected with tee union (110) on pipeline between described high-voltage switch gear (108) and clear water faucet (109), three interfaces of described tee union (110) are connected with the water purification mouth of high-voltage switch gear (108), clear water faucet (109) and setting-out water butt (113) respectively.
8. the pure water machine system that consists of of reduced-pressure backflow valve according to claim 6, it is characterized in that: described pure water machine system also comprises inlet triplet for water (101), described former water intake pipe is connected on inlet triplet for water (101), and inlet triplet for water (101) is upper to be connected with former water intake pipe the water intake (01) of described reduced-pressure backflow valve (115) by being connected to.
9. the pure water machine system that consists of of reduced-pressure backflow valve according to claim 6, it is characterized in that: described pure water machine system also comprises flushing return flow solenoid valve (112), rinse return flow solenoid valve (112) and be provided with dense water inlet, dense water out and backflow interface (114), dense water inlet is connected with dense water swivel, and the backwater mouth (16) of described reduced-pressure backflow valve (115) is upward connected with dense water swivel by being connected to the backflow interface (114) that rinses return flow solenoid valve (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320032298 CN203009905U (en) | 2013-01-22 | 2013-01-22 | Decompression reflux flow valve and water purification system formed by decompression reflux flow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320032298 CN203009905U (en) | 2013-01-22 | 2013-01-22 | Decompression reflux flow valve and water purification system formed by decompression reflux flow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009905U true CN203009905U (en) | 2013-06-19 |
Family
ID=48601502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320032298 Expired - Fee Related CN203009905U (en) | 2013-01-22 | 2013-01-22 | Decompression reflux flow valve and water purification system formed by decompression reflux flow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009905U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489811A (en) * | 2017-09-30 | 2017-12-19 | 贵州新安航空机械有限责任公司 | A kind of oxygen concentration solenoid relay valve element |
| WO2020199917A1 (en) * | 2019-03-29 | 2020-10-08 | 宿迁菡束环保设备有限公司 | Valve body |
-
2013
- 2013-01-22 CN CN 201320032298 patent/CN203009905U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489811A (en) * | 2017-09-30 | 2017-12-19 | 贵州新安航空机械有限责任公司 | A kind of oxygen concentration solenoid relay valve element |
| WO2020199917A1 (en) * | 2019-03-29 | 2020-10-08 | 宿迁菡束环保设备有限公司 | Valve body |
| US11946556B2 (en) | 2019-03-29 | 2024-04-02 | Nanjing Hanshu Environmental Protection Equipment Co., Ltd | Valve body |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20140122 |