CN201672097U - Pressure limiting three-way joint - Google Patents
Pressure limiting three-way joint Download PDFInfo
- Publication number
- CN201672097U CN201672097U CN201020190917XU CN201020190917U CN201672097U CN 201672097 U CN201672097 U CN 201672097U CN 201020190917X U CN201020190917X U CN 201020190917XU CN 201020190917 U CN201020190917 U CN 201020190917U CN 201672097 U CN201672097 U CN 201672097U
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- pressure
- water
- filter
- pressure limiting
- controlling rod
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Abstract
The utility model relates to a pressure limiting three-way joint, which comprises a valve seat, wherein a source water inlet, an unfiltered source water outlet and a filtered water outlet which are mutually communicated are arranged in the valve seat, and pressure limiting assemblies are arranged in passages for communicating the filtered water outlet with the source water inlet and the unfiltered source water outlet. The pressure limiting three-way joint of the utility model is additionally provided with the pressure limiting assemblies in the passages for communicating the filtered water outlet with the source water inlet and the unfiltered source water outlet, and can ensure that the pressure of water flown out from the filtered water outlet through the pressure limiting structure is limited within the set water pressure range without causing potential safety hazards on purified water machine systems. Compared with the existing pressure limiting valve or the pressure reducing valve arranged in front of a pressure boosting pump to be singly used as a pressure limiting (reducing) assembly, the pressure limiting assembly adopting the technical scheme save the valve seats of the pressure limiting valve, save the cost and is convenient to install and apply.
Description
Technical field
The utility model relates to a kind of pressure limiting tee union.
Background technique
At present; the three-way valve of pure water machine system or tee union all only have the function of common threeway; the function and the filtering function that do not have pressure limiting; on the one hand; when source water hydraulic pressure is bigger; usually can cause potential safety hazard to pure water machine system, common way is to set up a pressure-limit valve to solve the bigger problem of source water hydraulic pressure in the water route.But, in pure water machine system, not only use reduction valve but also use three-way valve, increase the cost of required accessory of pure water machine system and installation.On the other hand, do not have filtering function, supercharging with the function of cutting off the water supply is cut off the water supply first order filter element that pump can only be installed on pure water machine system is after the PP face lauter tub, that is to say, the cotton lauter tub of PP directly docks with the main water supply tube net, when source water hydraulic pressure was higher, there was bigger pressure-bearing potential safety hazard in this lauter tub; Therefore in order to promote the Safety performance of domestic water purifying machine, to have the pressure limiting tee union of pressure limiting function and filtering function and the supercharging pump stack mounting water purification machine first order filter element of cutting off the water supply is before the cotton lauter tub of PP, promptly becomes the necessary and feasible scheme that improves the domestic water purifying machine Safety performance.
The model utility content
Technical problem to be solved in the utility model provides a kind of tee union with pressure limiting function, and this tee union can solve the potential safety hazard of bringing when water hydraulic pressure in source is big in the pure water machine system.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of pressure limiting tee union, comprise valve seat, the source water inlet, filter preceding source water out, the filter back water out that have mutual connection in the valve seat, water out and source water inlet and filter in the passage of preceding source water out connection and be provided with the pressure limiting assembly after the described filter; Described pressure limiting assembly comprises that the water inlet that is formed by the valve seat body is dammed mouthful, low pressure water shutoff mouth and be positioned at valve seat controlling rod, go up pressure-sensitive diaphragm and following pressure-sensitive diaphragm, the described pressure-sensitive diaphragm periphery of going up is sealingly fastened between valve body and the upper press cover, last pressure-sensitive diaphragm central position is by last pressure-sensitive backing plate and tighten nut seal and be fixed in the controlling rod upper-end surface, the described cavity of going up between pressure-sensitive diaphragm and the valve body constitutes filter opisthogenesis water cavity, and filter opisthogenesis water cavity is connected by water flowing pin hole and filter opisthogenesis water channel; Be provided with the pressure-sensitive spring between described controlling rod and the upper press cover, the pressure-sensitive both ends of the spring acts on upper press cover inwall and controlling rod upper-end surface respectively; Described controlling rod has mouth and the low pressure water shutoff oral-lateral face of damming of intaking that seal, controlling rod sealing water inlet is dammed mouthful, low pressure water shutoff oral-lateral mask has the soft cover of sealing, and described controlling rod sealing water inlet is dammed mouthful, the side and the water inlet of the side of low pressure water shutoff mouth, the soft cover of sealing are dammed mouthful, the open end structure of low pressure water shutoff mouth is complementary; Described valve body is interior to be provided with pressure-sensitive diaphragm down at place, controlling rod lower end surface, following pressure-sensitive diaphragm periphery is sealingly fastened between valve body and the lower cover, following pressure-sensitive diaphragm central position is by pressure-sensitive backing plate and following tightening nut are sealingly fastened in the controlling rod lower end surface down, cavity between described pressure-sensitive diaphragm down and the lower cover constitutes the low pressure water cavity, and the low pressure water cavity is connected by the low-pressure water runner and the water route at water out place, filter back; Drive under the acting in conjunction of described controlling rod hydraulic pressure in pressure-sensitive spring, filter opisthogenesis water cavity and low pressure water cavity that the controlling rod to-and-fro motion constitutes that the control water inlet is dammed mouthful, between the low pressure water shutoff mouth current at the control unit of switching two states conversion.
The tee union of this programme water out and source water inlet and filter in the passage that preceding source water out connects and set up the pressure limiting assembly after filter, this pressure limiting assembly can adopt the pressure limiting structure that is similar in existing water route pressure-limit valve or the reduction valve, after adopting the pressure limiting assembly, can guarantee that the hydraulic pressure that filter back water out flows out behind pressure limiting structure is limited in the range hydraulic pressure of setting, can not cause potential safety hazard to pure water machine system.Compare as the limited (less) pressure assembly separately before pressure-limit valve or reduction valve are located at booster water pump with existing, the pressure limiting assembly of this programme has been saved the pressure-limit valve valve seat, saves cost and is convenient to install and use.
Be provided with the filter screen with hollow duct in the passage that described source water inlet, the preceding source of filter water out are connected, the filter screen two ends are respectively by upper end seal ring, lower end seal ring and valve base inner wall sealing and fixing; Hollow duct in the described filter screen constitutes the preceding source of filter water channel, and the outer basin of filter screen constitutes filter opisthogenesis water channel, and described pressure limiting assembly feed-water end communicates with filter opisthogenesis water channel, and the waterexit end of pressure limiting assembly communicates with filter back water out.This structure can be filtered source water owing to be provided with filter screen in the passage that source water inlet, source water out are connected, and filtered water source is by filtering the position that the back water out can be delivered to needs to use filter back water; Filter screen in this tee union can be made cylindric, the hollow duct of cylindric filter screen is the source water channel, when the source of unlatching water out uses source water, source water in the water channel of source can wash the filter screen inwall, play the effect of cleaning filter screen, therefore the filter screen of this tee union is difficult for stopping up, and can use for a long time also and need not clean.
The end that described filter screen closes on the source water inlet is fixed on the fixed block of filter screen lower end, and the lower end seal ring is located between filter screen lower end fixed block and the valve base inner wall; The end that filter screen closes on the preceding source of filter water out is fixed on the fixed block of filter screen upper end, and the upper end seal ring is located between filter screen upper end fixed block and the valve base inner wall.
Be provided with in the described low pressure water cavity and help the envelope spring, help the envelope both ends of the spring to act on lower cover inwall and controlling rod lower end surface respectively.
Described controlling rod is frustum cone structure.The water shutoff mouth area of contour in the horizontal direction that seals coupling mutually with this texture edge is less than the water shutoff open area of horizontal opening under the equal bore, so this controlling rod that dams can reduce the power of bouncing of hydraulic pressure when sealing water shutoff mouth, reduces the vibrations of reduction valve; The side of the structure of this controlling rod that dams has certain inclination, therefore also is convenient to its better sealing water shutoff mouth when the controlling rod that dams moves up and down.
Described upper press cover inwall and pressure-sensitive spring contact position are provided with spring housing, have by the Regulation spring cover above the spring housing to move back and forth the adjusting element of cutting off the water supply that the sense of control pressing spring is changed between compressive state, nature.
To sum up, the beneficial effects of the utility model are:
1, tee union of the present utility model water out and source water inlet and filter in the passage that preceding source water out connects and set up the pressure limiting assembly after filter, can guarantee that the hydraulic pressure that filter back water out flows out behind pressure limiting structure is limited in the range hydraulic pressure of setting, can not cause potential safety hazard to pure water machine system.Compare as the limited (less) pressure assembly separately before pressure-limit valve or reduction valve are located at booster water pump with existing, the pressure limiting assembly of this programme has been saved the pressure-limit valve valve seat, saves cost and is convenient to install and use.
2, owing to be provided with filter screen in the passage that source water inlet, source water out are connected, can filter source water, filtered water source is by filtering the position that the back water out can be delivered to needs to use filter back water; Filter screen in this tee union can be made cylindric, the hollow duct of cylindric filter screen is the source water channel, when the source of unlatching water out uses source water, source water in the water channel of source can wash the filter screen inwall, play the effect of cleaning filter screen, therefore the filter screen of this tee union is difficult for stopping up, and can use for a long time also and need not clean.
Description of drawings
Fig. 1 is the structural representation of the utility model tee union;
Fig. 2 is that the A-A of Fig. 1 is to sectional view;
Fig. 3 is the perspective view of upper press cover among Fig. 1;
Fig. 4 is the sectional view of upper press cover among Fig. 3;
Fig. 5 is the sectional view of upper press cover among Fig. 3;
Fig. 6 is the perspective view of button and the adjusting element assembling of cutting off the water supply of cutting off the water supply among Fig. 1;
Fig. 7 is the sectional view of adjusting element of cutting off the water supply among Fig. 6;
Fig. 8 is the perspective view of adjusting element of cutting off the water supply.
Mark and corresponding component title among the figure: 101, filter back water out 102, valve seat 103, controlling rod 104, low pressure water shutoff mouth 105 seals soft cover 106, filter opisthogenesis water cavity 107, last pressure-sensitive diaphragm 108, last pressure-sensitive backing plate 109 tightens nut 110, pressure-sensitive spring 111, upper press cover 112, spring housing 113, the adjusting element 114 of cutting off the water supply, the button 115 of cutting off the water supply, water flowing pin hole 116, water inlet dams mouthfuls 117, and filter opisthogenesis water channel 118 is filtered preceding source water channel 119, filter screen 120, lower cover 121, low pressure water cavity 122 helps envelope spring 123, following tightening nut 124, following pressure-sensitive backing plate 125, following pressure-sensitive diaphragm 126, press seal backing plate 127, low-pressure water runner 128, filter preceding source water out 129, positioning baffle 130, filter screen upper end fixed block 131, upper end seal ring 132, filter screen lower end fixed block 133, lower end seal ring 134, source water inlet 114-1, attachment post 113-1, attachment hole 113-2, the assembly parts side of cutting off the water supply protuberance 113-3, assembly parts lower end surface 111-1 cuts off the water supply, the groove 111-2 that cuts off the water supply, the water flowing projection.
Embodiment
Extremely shown in Figure 8 referring to Fig. 1, pressure limiting tee union of the present utility model, comprise valve seat 102, the source water inlet 134, filter preceding source water out 128, the filter back water out 101 that have mutual connection in the valve seat 102, described filter back water out 101 and source water inlet 134 and filter in the passage that preceding source water out 128 connects and be provided with the pressure limiting assembly; Be provided with the filter screen 119 with hollow duct in the passage that described source water inlet 134, the preceding source of filter water out 128 are connected, filter screen 119 two ends are fixed with valve seat 102 inner wall sealings by upper end seal ring 131, lower end seal ring 133 respectively; Hollow duct in the described filter screen 119 constitutes the preceding source of filter water channel 118, and filter screen 119 outer basins constitute filter opisthogenesis water channel 117, and described pressure limiting assembly feed-water end communicates with filter opisthogenesis water channel 117, and the waterexit end of pressure limiting assembly communicates with filter back water out 101; The end that described filter screen 119 closes on source water inlet 134 is fixed on the filter screen lower end fixed block 132, and lower end seal ring 133 is located between filter screen lower end fixed block 132 and valve seat 102 inwalls; The end that filter screen 119 closes on the preceding source of filter water out 128 is fixed on the fixed block 130 of filter screen upper end, and upper end seal ring 131 is located between filter screen upper end fixed block 130 and valve seat 102 inwalls; Described pressure limiting assembly comprises that the water inlet that is formed by valve seat 102 bodies dams mouthfuls 116, low pressure water shutoff mouth 104 and the controlling rod 103 that is positioned at valve seat 102, last pressure-sensitive diaphragm 107 and following pressure-sensitive diaphragm 125, described pressure-sensitive diaphragm 107 peripheries of going up are sealingly fastened between valve body 102 and the upper press cover 111, last pressure-sensitive diaphragm 107 central positions are by last pressure-sensitive backing plate 108 and tighten nut 109 and be sealingly fastened in controlling rod 103 upper-end surfaces, the described cavity of going up between pressure-sensitive diaphragm 107 and the valve body 102 constitutes filter opisthogenesis water cavity 106, is provided with water flowing pin hole 115 between filter opisthogenesis water cavity 106 and the filter opisthogenesis water channel 117; Be provided with pressure-sensitive spring 110 between described controlling rod 103 and the upper press cover 111, pressure-sensitive spring 110 two ends act on upper press cover 111 inwalls and controlling rod 103 upper-end surfaces respectively; Described controlling rod 103 has sealing water inlet and dams mouthfuls 116 and low pressure water shutoff mouth 104 sides, controlling rod 103 sealing water inlet dams mouthfuls 116, low pressure water shutoff mouth 104 sides have the soft cover 105 of sealing, and the open end structure of described controlling rod 103 sealing water inlets dam mouthfuls 116, the side and the water inlet of the side of low pressure water shutoff mouth 104, the soft cover 105 of sealing are dammed mouth 116, low pressure water shutoff mouth 104 seals coupling mutually; Be provided with following pressure-sensitive diaphragm 125 at place, controlling rod 103 lower end surfaces in the described valve body 102, following pressure-sensitive diaphragm 125 peripheries are sealingly fastened between valve body 102 and the lower cover 120, following pressure-sensitive diaphragm 125 central positions are by pressure-sensitive backing plate 124 and following tightening nut 123 are sealingly fastened in controlling rod 103 lower end surfaces down, cavity between described pressure-sensitive diaphragm 125 down and the lower cover 120 constitutes low pressure water cavity 121, and low pressure water cavity 121 is connected by the low-pressure water runner 127 and the water route at water out 101 places, filter back; The control unit of drive under the acting in conjunction of described controlling rod 103 hydraulic pressure in pressure-sensitive spring 110, filter opisthogenesis water cavity 106 and low pressure water cavity 121 that controlling rod 103 to-and-fro motion constitute that the control water inlet dams mouthfuls 116, current being changed at the switching two states between the low pressure water shutoff mouth 104; State to be provided with in the low pressure water cavity 121 and help envelope spring 122, help envelope spring 122 two ends to act on lower cover 120 inwalls and controlling rod 103 lower end surfaces respectively; Described controlling rod 103 is frustum cone structure; Described upper press cover 111 inwalls and pressure-sensitive spring 110 contact position are provided with spring housing 112, and spring housing 112 tops have by Regulation spring cover 112 move back and forth the adjusting element 113 of cutting off the water supply that sense of control pressing spring 110 is changed between compressive state, nature.
Claims (6)
1. pressure limiting tee union, comprise valve seat (102), the source water inlet (134), filter preceding source water out (128), the filter back water out (101) that have mutual connection in the valve seat (102), it is characterized in that described filter back water out (101) and source water inlet (134) and filter in the passage that preceding source water out (128) connects and be provided with the pressure limiting assembly; Described pressure limiting assembly comprises the water inlet that is formed by valve seat (102) body dam mouthful (116), low pressure water shutoff mouth (104) and be positioned at the controlling rod (103) of valve seat (102), last pressure-sensitive diaphragm (107) and following pressure-sensitive diaphragm (125), described pressure-sensitive diaphragm (107) periphery of going up is sealingly fastened between valve body (102) and the upper press cover (111), last pressure-sensitive diaphragm (107) central position is by last pressure-sensitive backing plate (108) and tighten nut (109) and be sealingly fastened in controlling rod (103) upper-end surface, the described cavity of going up between pressure-sensitive diaphragm (107) and the valve body (102) constitutes filter opisthogenesis water cavity (106), is provided with water flowing pin hole (115) between filter opisthogenesis water cavity (106) and the filter opisthogenesis water channel (117); Be provided with pressure-sensitive spring (110) between described controlling rod (103) and the upper press cover (111), pressure-sensitive spring (110) two ends act on upper press cover (111) inwall and controlling rod (103) upper-end surface respectively; Described controlling rod (103) has sealing water inlet dam mouthful (116) and low pressure water shutoff mouth (a 104) side, controlling rod (103) sealing water inlet is dammed mouthful (116), low pressure water shutoff mouth (104) side has sealing soft cover (105), and described controlling rod (103) sealing water inlet the dam open end structure of mouth (116), low pressure water shutoff mouth (104) of the side of mouthful (116), low pressure water shutoff mouth (104), the side and the water inlet that seal soft cover (105) of damming seals coupling mutually; Place, the inherent controlling rod of described valve body (102) (103) lower end surface is provided with down pressure-sensitive diaphragm (125), following pressure-sensitive diaphragm (125) periphery is sealingly fastened between valve body (102) and the lower cover (120), following pressure-sensitive diaphragm (125) central position is by pressure-sensitive backing plate (124) and following tightening nut (123) are sealingly fastened in controlling rod (103) lower end surface down, cavity between described pressure-sensitive diaphragm (125) down and the lower cover (120) constitutes low pressure water cavity (121), and low pressure water cavity (121) is connected by the low-pressure water runner (127) and the water route at water out (101) place, filter back; Drive controlling rod (103) to-and-fro motion formation is controlled the control unit that current are changed at the switching two states between mouthful (116), the low pressure water shutoff mouth (104) that dams of intaking under the acting in conjunction of described controlling rod (103) hydraulic pressure in pressure-sensitive spring (110), filter opisthogenesis water cavity (106) and low pressure water cavity (121).
2. pressure limiting tee union according to claim 1, it is characterized in that, be provided with the filter screen (119) with hollow duct in the passage that described source water inlet (134), filter preceding source water out (128) are connected, filter screen (119) two ends are fixed with valve seat (102) inner wall sealing by upper end seal ring (131), lower end seal ring (133) respectively; Hollow duct in the described filter screen (119) constitutes filter preceding source water channel (118), the outer basin of filter screen (119) constitutes filter opisthogenesis water channel (117), described pressure limiting assembly feed-water end communicates with filter opisthogenesis water channel (117), and the waterexit end of pressure limiting assembly communicates with filter back water out (101).
3. pressure limiting tee union according to claim 2, it is characterized in that, the end that described filter screen (119) closes on source water inlet (134) is fixed on the filter screen lower end fixed block (132), and lower end seal ring (133) is located between filter screen lower end fixed block (132) and valve seat (102) inwall; The end that filter screen (119) closes on filter preceding source water out (128) is fixed on the filter screen upper end fixed block (130), and upper end seal ring (131) is located between filter screen upper end fixed block (130) and valve seat (102) inwall.
4. according to any described pressure limiting tee union of claim 1 to 3, it is characterized in that, be provided with in the described low pressure water cavity (121) and help envelope spring (122), help envelope spring (122) two ends to act on lower cover (120) inwall and controlling rod (103) lower end surface respectively.
5. pressure limiting tee union according to claim 4 is characterized in that, described controlling rod (103) is frustum cone structure.
6. pressure limiting tee union according to claim 4, it is characterized in that, described upper press cover (111) inwall and pressure-sensitive spring (110) contact position are provided with spring housing (112), have by Regulation spring cover (112) above the spring housing (112) to move back and forth the adjusting element of cutting off the water supply (113) that sense of control pressing spring (110) is changed between compressive state, nature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020190917XU CN201672097U (en) | 2010-05-12 | 2010-05-12 | Pressure limiting three-way joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020190917XU CN201672097U (en) | 2010-05-12 | 2010-05-12 | Pressure limiting three-way joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201672097U true CN201672097U (en) | 2010-12-15 |
Family
ID=43329509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020190917XU Expired - Fee Related CN201672097U (en) | 2010-05-12 | 2010-05-12 | Pressure limiting three-way joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201672097U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521075A (en) * | 2012-07-05 | 2014-01-22 | 江苏正本净化节水科技实业有限公司 | Three-way joint |
-
2010
- 2010-05-12 CN CN201020190917XU patent/CN201672097U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521075A (en) * | 2012-07-05 | 2014-01-22 | 江苏正本净化节水科技实业有限公司 | Three-way joint |
| CN103521075B (en) * | 2012-07-05 | 2015-07-01 | 江苏正本净化节水科技实业有限公司 | Three-way joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Sichuan Stong OMEX Environmental Engineering Co., Ltd. Assignor: Yiteng Water Purification Equipment Research and Development Center Contract record no.: 2011510000008 Denomination of utility model: Pressure limiting three-way joint Granted publication date: 20101215 License type: Exclusive License Record date: 20110224 |
|
| ASS | Succession or assignment of patent right |
Owner name: WU RUICHANG Free format text: FORMER OWNER: HI-TECH. ZONE YITENG PURIFIED WATER EQUIPMENT RESEARCH AND DEVELOPMENT CENTER Effective date: 20110815 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 610041 CHENGDU, SICHUAN PROVINCE TO: 528322 FOSHAN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110815 Address after: 528322 No. four, No. two industrial road, Leliu Town, Shunde District, Guangdong, Foshan Patentee after: Wu Ruichang Address before: 610041 Sichuan city of Chengdu province high tech Zone Xinbei District No. 132 Xinle South Street Patentee before: Yiteng Water Purification Equipment Research and Development Center |
|
| DD01 | Delivery of document by public notice |
Addressee: Wu Ruichang Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20120512 |