CN2382909Y - Water inlet valve - Google Patents
Water inlet valve Download PDFInfo
- Publication number
- CN2382909Y CN2382909Y CN 99232785 CN99232785U CN2382909Y CN 2382909 Y CN2382909 Y CN 2382909Y CN 99232785 CN99232785 CN 99232785 CN 99232785 U CN99232785 U CN 99232785U CN 2382909 Y CN2382909 Y CN 2382909Y
- Authority
- CN
- China
- Prior art keywords
- valve
- water
- inlet
- water inlet
- valve rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model provides pipeline fittings with the functions of pressure reducing, voltage stabilizing, and automatic cutoff, which is used for a water storage type water inlet valve, and is especially used for a water inlet valve of a water outlet open type water heater. The utility model comprises a joint 1 of an inward opening water inlet hole 3, a valve body 23, a valve cover 21, a film sheet 11, and a compression spring 17; a valve rod 10 makes a reciprocating sliding motion in the valve body 23 and is sealed; a water hole 16 of the valve rod 10, and a side hole 7 are communicated with an interstitial path 6, and the on-off of the water inlet hole 3 is controlled by a valve gasket 4; the sealing area of the water inlet hole 3, which is sealed by a valve gasket 5 is smaller than the effective area of the rubber film sheet 11. The utility model replaces the original water inlet valve and the check valve so as to enable the water heater to start in a low-voltage mode, and supply water in a multipoint mode. The utility model has the advantages of sanitation and convenience, and safety.
Description
The utility model relates to a kind of piping attachment with decompression, voltage stabilizing and automatic cut-off function, and the inlet valve as the storage water heater is particularly useful for being installed on the intake pipe of existing water outlet open type electric water heater or gas water-heater.
The storage water heater can start under low hydraulic pressure than the continuous-flow type water heater, uses increasingly extensive.Storage water heater in the past (hereinafter to be referred as water heater) is divided into two kinds of closed and open types, and safety check (one-way valve) is housed before water intake.Closed water heater or in water storage tank, add the float-ball type Automatic Water System and indirectly join with the tap water pipe network, but the maintenance of float-ball type Automatic Water System is very difficult; Or directly join with the tap water pipe network, bearing the hydraulic pressure of tap water pipe network, can be opened at a plurality of water outlet place mounted valves, so easy to use.But its rated pressure is 0.4-0.8MPa, and container wall is thicker, and consumptive material is many, makes the strictness of (welding) technological requirement, the cost of production height; Because hydraulic pressure is higher, when water, vapour biphase equilibrium, the highest heating water temperature will be lower than open-type water heater 5-10 ℃.The pressure-bearing of open-type water heater is low, the safety pressure of Decompression valves often is 0.10-0.18MPa, rated pressure is 0MPa, must between water intake and tap water pipe network, establish a valve and come the switch current, and prolong the life-span of mixing water valve, water outlet only plays a through hole effect, valve can not be set open and close, and therefore uses extremely inconvenient under the situation at a plurality of waters of need place; And when outlet pipe adopted galvanized welded pipe, because valveless is closed, extraneous oxygen entered, and the moist inwall of oxidation tube when discharging water once more, has rust water to emit, and is very unhygienic.
The purpose of this utility model is to provide a kind of storage water heater's inlet valve, can realize reducing pressure, the function of voltage stabilizing, automatic cut-off, be suitable for wide range hydraulic pressure work, especially can hang down the hydraulic pressure starting in fact, make the closed water heater's who is connected on this valve rated pressure reduction or the heating water temperature is improved, the water outlet open-type water heater and can be provided with in many places the band valve water outlet, other valve must be installed before the water intake, also can cancel the preceding safety check of storage water heater's water intake, safe and reliable, convenient and healthy.
The utility model is achieved in that an end of the joint that has the water inlet in and intake pipe (running water pipe) join, and the other end connects with valve body.Valve body connects with bolton with valve gap again, and the osculum of valve gap and outlet pipe (water inlet tube of water heater) join.Also accompany the outer of elastomer diaphragm between valve body and valve gap, elastomer diaphragm will be divided into air cavity and water containing chamber by the cavity of valve body and valve gap inside, and air cavity communicates with atmosphere by the spiracle on the valve body; Water containing chamber has water channel to communicate with water outlet.The interior edge of elastomer diaphragm is clipped between the step, backing plate of the nut, mat and the valve rod that are spun on the valve rod.Valve rod reciprocatingly slides in the endoporus of valve body, and sealing mutually.Have a water port in the valve rod, an end of water port is directly to the osculum on the valve gap; The other end of water port communicates with clearance channel between the valve rod by at least one side opening and joint, valve body.Order about valve stem slides by elastomer diaphragm, the valve pad control gap passage of the radial location of the drive valve rod the other end and the on-off of the water inlet in the joint.The sectional area of water inlet is less than the useful area of elastomer diaphragm, and (if elastomer diaphragm is non-wrinkled, its useful area then is the sectional area of cavity between valve body and the valve gap; If elastomer diaphragm has gauffer, its useful area then is the area of interior edge of elastomer diaphragm gauffer minimum or interior circle).When this valve itself assembles, pressure spring has precompression, has ultimate range between valve pad on the valve rod and the water inlet end face.When inlet valve is closed, useful area S2 and the ratio N of valve pad at elastomer diaphragm to the sealing area S1 of water inlet, the highest, minimum pressure P1max, the P1min at place, water inlet, the highest, minimum pressure P2max, the P2min of water containing chamber, between the elasticity coefficient K of pressure spring, precompression F0 (F0 〉=0) and the ultimate range L, following relation is arranged:
N＝(P1max-P1min)/(P2max-P2min)，N＞1；
And (KL+F0)/S1=P2min
*N-P1min, (KL+F0)/S1＞0.
The useful area of above-mentioned elastomer diaphragm equals a certain locational area, balances each other in the effective pressure on one side of this position upper diaphragm and the single force of another side, and this single force must the active force that occur balances each other with being acted on by pressure on the diaphragm.Useful area is less than the area of contour of diaphragm, promptly less than the sectional area of internal cavities between valve gap and the valve body.If the radius of cavity is R between valve gap and the valve body, the exradius of backing plate is r, and then the approximative value of the useful area S2 of elastomer diaphragm is:
S2＝(R
2+R
*r+r
2)
*π/3。
After aforesaid inlet valve installs, valve rod wherein can slide in valve body, no matter in what position, always make it be subjected to the thrust to the water inlet direction of elastomer diaphragm, the water that equals the water inlet adds the elastic force (axial component of ignoring the elastic force of the frictional force of valve stem slides and elastomer diaphragm) of upper spring to the thrust to the osculum direction of its generation of valve rod.When the water outlet of water heater is closed, the water inlet of the water containing chamber of inlet valve increases, pressure increases, force elastomer diaphragm water inlet direction to move, the air of air cavity is discharged through spiracle, and drive valve rod and slide, block till water inlet water inlet, water containing chamber hydraulic pressure no longer raise up to valve pad to the water inlet direction, thereby close into water automatically, the water storage tank pressure of water heater no longer increases.Because valve pad is less than the useful area of elastomer diaphragm to the sealing area of water inlet, so the hydraulic pressure in the water storage tank of water heater is less than the hydraulic pressure of tap water pipe network.When the hydraulic pressure of tap water pipe network is 0, the water of water inlet is 0 to the active force of valve pad, the hydraulic pressure of inlet valve water containing chamber makes valve pad be pressed on the interior edge face of water inlet more, inlet valve is closed, water in the water heater water storage tank can not flow backwards to the tap water pipe network, this moment, inlet valve played safety check, the original safety check of alternative water heater.Wherein, pressure spring plays buffering on the one hand and closes the protective action to the water hammering power of valve rod, valve pad and elastomer diaphragm that produces suddenly because of the water heater flowing water Valve, has improved the minimum pressure value in water containing chamber when inlet valve is closed on the other hand.
After the water heater flowing water Valve was opened, hydraulic pressure reduced in the water heater water storage tank, and the hydraulic pressure in the inlet valve water containing chamber is higher, and the safety check of washing the water heater water intake open flows to the water storage tank of water heater.At this moment, the water containing chamber hydraulic pressure of inlet valve reduces, under the synergy of the hydraulic pressure of water inlet and pressure spring elastic force, valve rod slides to the water outlet direction, and the high pressure water of water inlet produces impact force to valve pad, and via side opening, the water port of clearance channel, valve rod, flow to the water outlet of valve gap, the hydraulic pressure in the water in the injection water containing chamber, water containing chamber further reduces, valve rod continues to slide to the water outlet direction, make current through this inlet valve the pressure loss reduce to minimum.So constantly adjustment process repeatedly makes the pressure of water outlet keep constant, thereby plays the effect of step-down and voltage stabilizing.
The useful area of selected elastomer diaphragm and valve pad are to the suitable ratio of the sealing area of water inlet and the precompression and the suitable maximum range value of sealing gasket and water inlet of pressure spring, when the hydraulic pressure of tap water pipe network is 0.03-0.8MPa, hydraulic pressure minimum in the water storage tank of water heater is 0.01-0.03MPa, peak is 0.05-0.7MPa, in this range hydraulic pressure, hydraulic pressure can be delivered to or pass through the place that is higher than inlet valve 1-7m, therefore can water outlet be installed at arbitrary place of ordinary family; And this hydraulic pressure is less than the safety pressure 0.10-0.18MPa of the Decompression valves of existing open-type water heater, farther rated pressure 0.4-0.8MPa less than the closed water heater.This shows, water heater of the present utility model is housed, can water outlet be installed, realize wide range hydraulic pressure work, especially can hang down the hydraulic pressure starting in fact at arbitrary place of ordinary family.
Even inlet valve can not make valve pad normally close into water because of manufacturing or improper use, make the static pressure of water storage tank of water heater, that is the static pressure of the water containing chamber of inlet valve increases, but because the tensile strength of elastomer diaphragm will be lower than the tensile strength of the water storage tank wall material of water heater, therefore elastomer diaphragm must break earlier, water enters air cavity, overflows via the spiracle on the valve body, thereby has guaranteed the safety of water heater.
In sum, adopt storage water heater of the present utility model, can realize reducing pressure, the function of voltage stabilizing, automatic cut-off, realized wide range hydraulic pressure work, especially can hang down the hydraulic pressure starting in fact; Compare with the closed water heater, make with the cost of material is low, the little or the highest heating water temperature of working pressure improves, and is more safe and reliable; Compare with water outlet open type water storage formula water heater, but can realize the water supply point of a plurality of switches, and can guarantee water heater safe handling, go out the water hygiene, and can save a stop valve and a safety check at the water heater water intake.The utility model is particularly useful for being installed on the intake pipe of existing water outlet open type electric water heater or gas water-heater.
Fig. 1 is a plan view of the present utility model.
Fig. 2 is the left view of Fig. 1.
Below in conjunction with Fig. 1, Fig. 2 structure of the present utility model and working principle are described.
Joint 1 one ends and the intake pipe (running water pipe) that have water inlet 3 in one join, and the other end connects with valve body 23.Valve body 23 again with valve gap 21 with 8 fastening connections of bolt, the osculum of valve gap 21 18 joins with outlet pipe (water inlet tube of water heater).Also accompany the outer of elastomer diaphragm 11 between valve body 23 and valve gap 21, elastomer diaphragm 11 will be divided into air cavity 22 and water containing chamber 19 by the cavity of valve body 23 and valve gap 21 inside, and air cavity 22 communicates with atmosphere by the spiracle on the valve body 23 20; Water containing chamber 19 communicates with groove 15 on the valve gap 21 with osculum 18.The interior edge of elastomer diaphragm 11 is clipped between the step, backing plate 12 of the nut 14, mat 13 and the valve rod 10 that are spun on the valve rod 10.Valve rod 10 reciprocatingly slides in the endoporus of valve body 23, and seal arrangement between the two is for being enclosed within two seal rings 9 on the valve rod 10.Have a water port 16 in the valve rod 10, an end of water port 16 is directly to the osculum on the valve gap 21 18; The other end of water port 16 communicates with clearance channel 6 between the valve rod 10 by side opening 7 and joint 1, valve body 23.Order about valve rod 10 by elastomer diaphragm 11 and slide, drive by bolt 2, packing ring 4 and be fixed on the valve pad 5 control gap passages 6 of valve rod 10 the other ends and the on-off of the water inlet 3 in the joint 1.The sectional area of water inlet 3 is less than the useful area of elastomer diaphragm 11.When this valve itself assembles, pressure spring 17 has precompression, has ultimate range between valve pad 5 on the valve rod 10 and water inlet 3 end faces.When inlet valve is closed, ratio N at the sealing area S1 of 5 pairs of water inlets 3 of useful area S2 and valve pad of elastomer diaphragm 11, the highest, minimum pressure P1max, the P1min at 3 places, water inlet, the highest, minimum pressure P2max, the P2min of water containing chamber 19 (osculum 18), between the elasticity coefficient K of pressure spring 17, precompression F0 (F0 〉=0) and the ultimate range L, following relation: N=(P1max-P1min)/(P2max-P2min) is arranged, N＞1, and (KL+F0)/S1=P2min
*N-P1min, (KL+F0)/S1＞0.
After aforesaid inlet valve installs, valve rod 10 wherein can slide in valve body 23, no matter in what position, always make it be subjected to the thrust to water inlet 3 directions of elastomer diaphragm 11 to equal water into adds upper spring to the thrust to the osculum direction of its generation elastic force (ignoring the frictional force that valve rod 10 slides and the axial component of elastomer diaphragm 11 elastic force).When the water outlet of water heater is closed, the water inlet of the water containing chamber 19 of inlet valve increases, pressure increases, force elastomer diaphragm 11 water inlets 3 directions to be moved, the air that makes air cavity 22 is discharged through spiracle 20, and drives valve rod 10 and slide to water inlet 3 directions, blocks till water inlet 3 water inlets, water containing chamber 19 hydraulic pressure no longer raise up to valve pad 5, thereby close into water automatically, the water storage tank static pressure of water heater no longer increases.Because the sealing area of 5 pairs of water inlets 3 of valve pad is less than the useful area of elastomer diaphragm 11, so the hydraulic pressure in the water storage tank of water heater will be opened the hydraulic pressure of tap water pipe network for a short time.When the hydraulic pressure of tap water pipe network is 0, the water of water inlet is 0 to the active force of valve pad, the hydraulic pressure of inlet valve water containing chamber 19 makes valve pad 5 be pressed on the interior edge face of water inlet 3 more, inlet valve is closed, water in the water heater water storage tank can not flow backwards to the tap water pipe network, this moment, inlet valve played safety check, the original safety check of alternative water heater.Wherein, pressure spring 17 plays buffering on the one hand and closes the protective action to the water hammering power of valve rod 10, valve pad 5 and elastomer diaphragm 11 that produces suddenly because of the water heater flowing water Valve, has improved the minimum pressure value in the water containing chamber 19 when inlet valve is closed on the other hand.
After the water heater flowing water Valve was opened, hydraulic pressure reduced in the water heater water storage tank, and the hydraulic pressure in the inlet valve water containing chamber 19 is higher, and the safety check of washing the water heater water intake open flows out.At this moment, water containing chamber 19 hydraulic pressure of inlet valve reduce, under the synergy of the hydraulic pressure of water inlet 3 and pressure spring 17 elastic force, valve rod 10 slides to the water outlet direction, the high pressure water of water inlet 3 produces impact force to valve pad 5, and via side opening 7, the water port 16 of clearance channel 6, valve rod 10, flow to the water outlet of valve gap 21, water in the injection water containing chamber 19, hydraulic pressure in the water containing chamber 19 further reduces, valve rod 10 continues to slide to the water outlet direction, make current through this inlet valve the pressure loss reduce to minimum.So constantly adjustment process repeatedly makes the pressure of water outlet keep constant, thereby plays the effect of step-down and voltage stabilizing.
When the useful area of elastomer diaphragm 11 20 times of sealing area of 5 pairs of water inlets 3 of valve pad, and (KL+F0)/S1 is 0.5 o'clock, when the hydraulic pressure of tap water pipe network is 0.03-0.8MPa, the minimum that hydraulic pressure in the water storage tank of water heater is is 0.0265MPa, peak is 0.065MPa, in this range hydraulic pressure, hydraulic pressure can be delivered to or pass through the place that is higher than inlet valve 2.7-6.6m, therefore can water outlet be installed at arbitrary place of ordinary family; And this hydraulic pressure is less than the safety pressure 0.10-0.18MPa of the Decompression valves of existing open-type water heater, farther rated pressure 0.4-0.8MPa less than the closed water heater.This shows, water heater of the present utility model is housed, can water outlet be installed, realize wide range hydraulic pressure work, especially can hang down the hydraulic pressure starting in fact at arbitrary place of ordinary family.
Even inlet valve can not make valve pad 5 normally close into water because of manufacturing or improper use, make the pressure of water storage tank of water heater, that is the pressure of the water containing chamber 19 of inlet valve increases, but because the tensile strength of used elastomer diaphragm 11 will be lower than the tensile strength of the water storage tank wall material of water heater, therefore elastomer diaphragm 11 must break earlier, water enters air cavity 22, overflows via the spiracle on the valve body 23 20, thereby has guaranteed the safety of water heater.
In this embodiment, desirable: N is 9-36, and (KL+F0)/S1 is 0.2-0.8; Scheme is preferably: N is 16-25, and (KL+F0)/S1 is 0.3-0.7; Preferably: N=20, (KL+F0)/S1=0.5.
The sealing area of 5 pairs of water inlets 3 of valve pad is amounted to into circle of the same area, and corresponding radius of a circle is generally got 4-16, and desirable preferably 8-12 gets 10 best.
Ultimate range between valve pad 5 on the valve rod 10 and water inlet 3 end faces, spacing by end face over against the osculum 18 of valve rod 10, or carry out spacing over against water inlet 3 end faces of joint 1 and valve rod 10 cylindrical steps or snap ring between the side opening 7 by valve body 23.Valve body 23 is over against water inlet 3 end faces of joint 1, and between the cylindrical step of valve rod 10, projection, a rubber gasket can be arranged also, the effect of impact when playing sealing and buffering valve rod 10 and opening.
The water channel of valve rod 10 osculums 18 and water containing chamber 19 can be the groove 15 on valve rod 10 end faces of valve gap 21 osculums 18, or hole or the groove 15 opened in valve rod 10 water ports 16 and the nut 14.
The radial location of valve pad 5 on valve rod 10, also direct setting-in or be glued in the hole of valve rod 10 ends, or the center of valve pad 5 and back are fixed by a spool, and this spool can axially float in the smooth hole of valve rod 10 ends.
The quantity of valve rod 10 upper-side holes 7 is preferably 2-4, is preferably 2.Side opening 7 is rectangular opening or circular hole, and is evenly distributed between valve rod 10 corresponding cross section cylindricals and the water port 17.
When the useful area of elastomer diaphragm 20 times of sealing area of 5 pairs of water inlets 3 of valve pad, and (KL+F0)/S1 is 0.5 o'clock, when the hydraulic pressure of tap water pipe network was 0.03-0.8MPa, the minimum that the hydraulic pressure in the water storage tank of water heater is was 0.0265MPa, and peak is 0.065MPa.
Claims (10)
1, a kind of inlet valve, in have a joint (1) of water inlet (3) an end and intake pipe join, the other end connects with valve body (23), valve body (23) with valve gap (21) with fastening connection of bolt (8), the water outlet (18) of valve gap (21) joins with the heater inleting pipe, it is characterized in that: between valve body (23) and valve gap (21), also accompany elastomer diaphragm (11) cavity that valve body (23) and valve gap (21) is inner and be divided into air cavity (22) and water containing chamber (19), air cavity (19), air cavity (22) communicates with atmosphere by the spiracle (20) on the valve body (23); Water containing chamber (19) has water channel to communicate with water outlet (18); The interior edge of elastomer diaphragm (11) is clipped between the step, backing plate (12) of the nut (14), mat (13) and the valve rod (10) that are spun on the valve rod (10); Valve rod (10) reciprocatingly slides in the endoporus of valve body (23), and seal arrangement is arranged; Have a water port (17) in the valve rod (10), an end of water port (17) is directly to the osculum (18) on the valve gap (21); The other end of water port (17) communicates with clearance channel (6) between the valve rod (10) by at least one side opening (7) and joint (1), valve body (23); The sectional area of water inlet (3) is less than the useful area of sheet rubber (11); When this valve itself assembles, pressure spring (17) has precompression, makes between valve pad (5) on the valve rod (10) and water inlet (3) end face to have maximum distance; When inlet valve is closed, useful area (S2) and the ratio (N) of valve pad (5) in elastomer diaphragm (11) to the sealing area (S1) of water inlet (3), the highest, the minimum pressure (P1max, PImin) that water inlet (3) is located, the highest, the minimum pressure (P2max, P2min) of water containing chamber (19), the elasticity coefficient (K) of pressure spring (17), precompression (F0) and maximum apart between the note (L), following relation: N=(P1max-P2min)/(P2max-P2min) is arranged, N＞1, and (k1+f0)/S1=P2min*N-P1min, (K1+f0)/and S1＞0, F0 〉=0.
2, a kind of inlet valve according to claim 1, the useful area (S2) that it is characterized in that described rubber school diaphragm (11) and valve pad (5) are 9-36 to the ratio (N) of the sealing area (S1) of water inlet (3), and (KL+F0)/S1 is 0.2-0.8.
3, a kind of inlet valve according to claim 2, the useful area (S2) that it is characterized in that described elastomer diaphragm (11) and valve pad (5) are 16-25 to the ratio (N) of the sealing area (S1) of water inlet (3), and (KL+F0)/S1 is 0.3-0.7.
4, a kind of inlet valve according to claim 3, the useful area (S2) that it is characterized in that described elastomer diaphragm (11) and valve pad (5) are 20 to the ratio (N) of the sealing area (S1) of water inlet (3), and (KL+F0)/S1=0.5.
5, a kind of inlet valve according to claim 1 is characterized in that described valve pad (5) is 4-16 to the radius of a circle of the same area of the sealing area (S1) of water inlet (3).
6, a kind of inlet valve according to claim 1, it is characterized in that valve pad (5) on the described valve rod (10) and the ultimate range between the end face of water inlet (3), the end face over against valve rod (10) by osculum (18) is spacing, or carries out spacing by valve body (23) over against the end face of water port (17) and cylindrical step, projection or the snap ring of the valve rod (10) between the side opening (7).
7, a kind of inlet valve according to claim 5, it is characterized in that described valve body (23) over against the water port end face of (17), and between valve rod (10) the cylindrical step between the side opening (7), projection, also have a rubber gasket.
8, a kind of water inlet net according to claim 1, the water channel that it is characterized in that described osculum (18) and water containing chamber (19), be the groove (15) on the end face of valve rod (10) on the valve gap (21), or hole or the groove opened in valve rod (10) and the nut (14).
9, a kind of inlet valve according to claim 1, it is characterized in that the radial location of described valve pad (5) on valve rod (10), be fixed on the valve rod (10) by bolt (2), packing ring (4), perhaps valve pad (5) setting-in or be glued in the hole of valve rod (10) end, or the center and the back of valve pad (5) fixed by spool, and this spool can be at the smooth hole axial float of valve rod (10) end.
10, a kind of inlet valve according to claim 1 is characterized in that the shape rectangular opening or the circular hole of described side opening (7), and side opening (7) is 24, and is evenly distributed between the corresponding cross section cylindrical of valve rod (10) and water port (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99232785 CN2382909Y (en) | 1999-02-05 | 1999-02-05 | Water inlet valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99232785 CN2382909Y (en) | 1999-02-05 | 1999-02-05 | Water inlet valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2382909Y true CN2382909Y (en) | 2000-06-14 |
Family
ID=34021400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99232785 Expired - Fee Related CN2382909Y (en) | 1999-02-05 | 1999-02-05 | Water inlet valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2382909Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100394090C (en) * | 2004-07-24 | 2008-06-11 | 麦广海 | Pressure reducing valve for water storage type water heater |
| CN103479228A (en) * | 2013-09-18 | 2014-01-01 | 宁波全景电器技术有限公司 | Anti-negative-pressure water nozzle |
| CN105298527A (en) * | 2015-11-26 | 2016-02-03 | 巨隆集团芜湖兴隆液压有限公司 | Opening and closing mechanism of overflowing safety valve |
| CN105386782A (en) * | 2015-11-26 | 2016-03-09 | 巨隆集团芜湖兴隆液压有限公司 | Overflow safety valve |
| CN105466004A (en) * | 2014-10-06 | 2016-04-06 | 广东顺德光晟电器股份有限公司 | Electric water heater with pressure adjusting function |
| CN105571113A (en) * | 2014-10-06 | 2016-05-11 | 广东顺德光晟电器股份有限公司 | Light wave heating electric water heater with pressure regulation function |
| CN105650874A (en) * | 2014-12-03 | 2016-06-08 | 广东顺德光晟电器股份有限公司 | External quick-heating type air energy water heater with pressure regulating function |
| WO2016086838A1 (en) * | 2014-12-03 | 2016-06-09 | 广东顺德光晟电器股份有限公司 | Instant photoelectric water heater provided with water flow sensor having depressurizing function |
| CN105716288A (en) * | 2014-12-03 | 2016-06-29 | 广东顺德光晟电器股份有限公司 | Central electric water heater with pressure reduction function |
| CN105716287A (en) * | 2014-12-03 | 2016-06-29 | 广东顺德光晟电器股份有限公司 | External rapid-heating type electric water heater provided with water flow sensor with pressure reduction function |
| CN105715840A (en) * | 2014-12-03 | 2016-06-29 | 广东顺德光晟电器股份有限公司 | Water flow switch with pressure reduction function |
| CN105716266A (en) * | 2014-12-03 | 2016-06-29 | 广东顺德光晟电器股份有限公司 | Optical wave heating non-metal blow-molded water tank electric water heater provided with water flow sensor with pressure reduction function |
| CN107366756A (en) * | 2017-09-27 | 2017-11-21 | 贵州航天新力铸锻有限责任公司 | Compact stop valve |
-
1999
- 1999-02-05 CN CN 99232785 patent/CN2382909Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100394090C (en) * | 2004-07-24 | 2008-06-11 | 麦广海 | Pressure reducing valve for water storage type water heater |
| CN103479228A (en) * | 2013-09-18 | 2014-01-01 | 宁波全景电器技术有限公司 | Anti-negative-pressure water nozzle |
| CN103479228B (en) * | 2013-09-18 | 2015-10-28 | 宁波全景电器技术有限公司 | Anti-negative pressure faucet |
| WO2016054982A3 (en) * | 2014-10-06 | 2016-06-02 | 广东顺德光晟电器股份有限公司 | Electric water heater having pressure adjustment feature |
| WO2016054983A3 (en) * | 2014-10-06 | 2016-06-02 | 广东顺德光晟电器股份有限公司 | Electric water heater using lightwave heating and having pressure adjustment function |
| CN105466004A (en) * | 2014-10-06 | 2016-04-06 | 广东顺德光晟电器股份有限公司 | Electric water heater with pressure adjusting function |
| CN105571113A (en) * | 2014-10-06 | 2016-05-11 | 广东顺德光晟电器股份有限公司 | Light wave heating electric water heater with pressure regulation function |
| CN105716287A (en) * | 2014-12-03 | 2016-06-29 | 广东顺德光晟电器股份有限公司 | External rapid-heating type electric water heater provided with water flow sensor with pressure reduction function |
| CN105650874A (en) * | 2014-12-03 | 2016-06-08 | 广东顺德光晟电器股份有限公司 | External quick-heating type air energy water heater with pressure regulating function |
| WO2016086838A1 (en) * | 2014-12-03 | 2016-06-09 | 广东顺德光晟电器股份有限公司 | Instant photoelectric water heater provided with water flow sensor having depressurizing function |
| CN105716288A (en) * | 2014-12-03 | 2016-06-29 | 广东顺德光晟电器股份有限公司 | Central electric water heater with pressure reduction function |
| CN105715840A (en) * | 2014-12-03 | 2016-06-29 | 广东顺德光晟电器股份有限公司 | Water flow switch with pressure reduction function |
| CN105716266A (en) * | 2014-12-03 | 2016-06-29 | 广东顺德光晟电器股份有限公司 | Optical wave heating non-metal blow-molded water tank electric water heater provided with water flow sensor with pressure reduction function |
| CN105715840B (en) * | 2014-12-03 | 2019-02-01 | 广东光晟物联股份有限公司 | There is the water flow switch of decompression |
| CN105386782A (en) * | 2015-11-26 | 2016-03-09 | 巨隆集团芜湖兴隆液压有限公司 | Overflow safety valve |
| CN105298527A (en) * | 2015-11-26 | 2016-02-03 | 巨隆集团芜湖兴隆液压有限公司 | Opening and closing mechanism of overflowing safety valve |
| CN107366756A (en) * | 2017-09-27 | 2017-11-21 | 贵州航天新力铸锻有限责任公司 | Compact stop valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2382909Y (en) | Water inlet valve | |
| CN204922118U (en) | Relief pressure valve structure with adjustable pressure | |
| CN2531203Y (en) | Water-hammer arresting non-return valve | |
| WO2022127577A1 (en) | Z-shaped liquid control valve without diaphragm, shaft, bushing, or spring | |
| CN2282624Y (en) | Buffer closing silencing check valve | |
| CN220600604U (en) | Novel gas pressure regulator | |
| CN201221632Y (en) | Balance pressure water-compensating valve | |
| CN209705280U (en) | A kind of push-in valve | |
| CN205559898U (en) | Controlling means is closed in delaying of check valve | |
| CN2871924Y (en) | Charging-controlled combined valve | |
| CN214579247U (en) | Drainage valve | |
| CN220151481U (en) | Pulse booster for hydraulic pulse test bed | |
| CN212407743U (en) | Pneumatic regulating valve | |
| CN220320421U (en) | Fire control valve of easy installation | |
| CN219062531U (en) | One-inlet two-outlet reversing valve | |
| CN216788683U (en) | Reciprocating type dephosphorization pump hydraulic end with internal circulation function | |
| CN2186332Y (en) | Energy-saving micro-valve | |
| CN216715326U (en) | K-shaped liquid control valve with no diaphragm, shaft sleeve and spring | |
| CN2594557Y (en) | Straight-through pneuamtic shutoff valves | |
| CN218625563U (en) | Intelligent fluid self-operated control valve | |
| CN220727310U (en) | Multistage noise reduction regulating valve | |
| CN214425119U (en) | Pneumatic cone valve | |
| CN218325545U (en) | Hydraulic control one-way valve | |
| CN215334664U (en) | Mechanical water flow control valve mechanism | |
| CN216519768U (en) | Pneumatic control sheet type water valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |