CN104048086A - Water-leakage protection valve - Google Patents
Water-leakage protection valve Download PDFInfo
- Publication number
- CN104048086A CN104048086A CN201410277032.6A CN201410277032A CN104048086A CN 104048086 A CN104048086 A CN 104048086A CN 201410277032 A CN201410277032 A CN 201410277032A CN 104048086 A CN104048086 A CN 104048086A
- Authority
- CN
- China
- Prior art keywords
- water
- leaks
- valve rod
- valve
- triggering assembly
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Water Treatment By Sorption (AREA)
- Fluid-Driven Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention provides a water-leakage protection valve. The water-leakage protection valve comprises a valve body, a water inlet, a water outlet and an opening and closing assembly which is used for opening or closing a water channel between the water inlet and the water outlet. The water-leakage protection valve further comprises a trigger assembly which is filled with a medium layer, wherein the medium layer is dissolved when making contact with water. A water feeding portion is installed on the lower portion of the trigger assembly, and after the medium layer is dissolved, the opening and closing assembly is driven to close the water channel between the water inlet and the water outlet. When a water purifier leaks, the water inlet can be automatically closed, so that leakage is prevented. The water-leakage protection valve has the advantages of being used repeatedly and having long service life.
Description
Technical field
The present invention relates to water purifier field, relate in particular to a kind of Protective valve that leaks that stops water purifier to leak.
Background technique
At present, in the long-term using process of water purifier, conventionally there will be the phenomenon of water purifier leakage, and then affect normal use and the life-span of water purifier.Existingly for stoping the device that water purifier leaks mostly to adopt valve arrangement, utilize the movement of valve rod, realize the keying to water purifier water route, and then close into water water route when water purifier leaks, reach the function that stops water purifier leakage.But there is following technological deficiency in existing water-leakage protecting device:
1, existing water-leakage protecting device can only once be used, and can not reuse, and the life-span is short;
2, existing water-leakage protecting device needs bending water pipe, and this has certain infringement to water pipe, also affects the working life of water purifier.
Summary of the invention
The object of this invention is to provide a kind of water intake that can automatically cut off and stop leakage when water purifier leaks, and reusable, the Protective valve that leaks of long service life.
For achieving the above object; the present invention proposes a kind of Protective valve that leaks; comprise valve body, water intake, water outlet, for being communicated with or blocking the on-off component of flow channel between described water intake and water outlet; the described Protective valve that leaks also comprises triggering assembly; described triggering assembly comprises meets water-soluble dielectric layer, and described triggering assembly dissolves the described on-off component of triggering by described dielectric layer blocks flow channel between described water intake and water outlet.
The Protective valve that leaks as above, wherein, described on-off component is pilot valve, the pressure release passage between the back pressure chamber of described pilot valve and described water outlet is provided with the switch part with described triggering assembly interlock.
The Protective valve that leaks as above, wherein, described switch part comprises thrust valve rod and is arranged on the Sealing on described thrust valve rod, described thrust valve rod and the interlock of described triggering assembly.
The Protective valve that leaks as above wherein, is arranged with elastic member on described thrust valve rod, and after described triggering assembly triggers, described elastic member promotes described thrust valve rod and blocks described pressure release passage.
The Protective valve that leaks as above; wherein; described triggering assembly is the accommodating cavity of dielectric layer described in a splendid attire, and the dielectric layer in described accommodating cavity is met after water-soluble solution, and the on-off component that is engaged in described triggering assembly resets and cuts off flow channel between water intake and water outlet.
The Protective valve that leaks as above, wherein, described triggering assembly is the holding element of the described dielectric layer of a clamping, and described dielectric layer is met after water-soluble solution, and the described on-off component that is engaged in described holding element resets and cuts off flow channel between water intake and water outlet.
The Protective valve that leaks as above, wherein, described on-off component comprises thrust valve rod and is arranged on the Sealing on described thrust valve rod, described thrust valve rod and the interlock of described triggering assembly.
The Protective valve that leaks as above wherein, is arranged with elastic member on described thrust valve rod, and after described triggering assembly triggers, described elastic member promotes described thrust valve rod and closes described flow channel.
Compared with prior art, the present invention has following characteristics and advantage:
1, the present invention is leaked Protective valve when water purifier leaks; a part for dielectric layer is dissolved, is decomposed or degrade in water; thereby reduced the whole height of dielectric layer in triggering assembly; and therefore thrust valve rod is moved down under the effect of gravity; and then blocking-up water intake, realize and automatically cut off the function that water intake stops leakage.
2, the present invention, after water purifier leakage problem solves, can add and meet water-soluble medium to triggering in assembly again, makes it restore to normal open state position, and then the reset of thrust valve rod, realizes reusing of the Protective valve that leaks.
Accompanying drawing explanation
Accompanying drawing described here is only for task of explanation, and is not intended to limit by any way scope disclosed by the invention.In addition, the shape of each parts in figure and proportional sizes etc. are only schematically, for helping the understanding of the present invention, are not shape and the proportional sizes that specifically limits each parts of the present invention.Those skilled in the art, under instruction of the present invention, can select various possible shapes and proportional sizes to implement the present invention as the case may be.
Fig. 1 is that leak Protective valve embodiment one master of the present invention looks cross-sectional view;
Fig. 2 is leak Protective valve embodiment one normal open state structural representation of the present invention;
Fig. 3 is leak Protective valve embodiment one closed state structural representation of the present invention;
Fig. 4 is leak Protective valve embodiment two the cross-sectional view of normal open state of the present invention;
Fig. 5 is leak Protective valve embodiment two the cross-sectional view of closed state of the present invention.
Description of reference numerals:
1-upper shell; 2-lower shell body; 3-water intake; 4-water outlet; 5-on-off component; 6-switch part; 61-thrust valve rod; 62-elastic member; 63-Sealing; 64-annular protrusion; The accommodating cavity of 7-; 8-meets water-soluble dielectric layer; 9-back pressure chamber; 10-barrier film; 11-by-pass hole; 12-relief hole; 13-thrust valve rod; 14-Sealing; 15-elastic member; 16-holding element.
Embodiment
With the description of the specific embodiment of the invention, can more be well understood to details of the present invention by reference to the accompanying drawings.But the specific embodiment of the present invention described here,, for explaining object of the present invention, is only limitation of the present invention and can not be understood as by any way.Under instruction of the present invention, technician can conceive based on possible distortion arbitrarily of the present invention, and these all should be regarded as belonging to scope of the present invention.
The Protective valve that leaks of the present invention; comprise valve body, water intake, water outlet, for being communicated with or blocking the on-off component of flow channel between described water intake and water outlet; the described Protective valve that leaks also comprises triggering assembly; described triggering assembly comprises meets water-soluble dielectric layer; described triggering assembly is dissolved and is triggered described on-off component by dielectric layer; to block flow channel between described water intake and water outlet, thereby reach, stop the function of leaking.
Please refer to Fig. 1 to Fig. 3, be respectively Fig. 1 and be leak Protective valve embodiment one master of the present invention and look cross-sectional view; Fig. 2 is leak Protective valve embodiment one normal open state structural representation of the present invention; Fig. 3 is leak Protective valve embodiment one closed state structural representation of the present invention.
As shown in Figure 1, the Protective valve that leaks that the present invention proposes comprises the valve body consisting of upper shell 1 and lower shell body 2, upper shell 1 is provided with water intake 3 and the water outlet 4 of connection, for being communicated with or blocking the on-off component 5 of flow channel between water intake 3 and water outlet 4, the Protective valve that leaks is provided with triggering assembly away from a side of described water intake, a side that triggers assembly engages with on-off component 5, its opposite side extends to lower shell body 2 bottoms, in the present embodiment, triggering assembly is the accommodating cavity 7 that a splendid attire is met water-soluble dielectric layer 8, accommodating cavity 7 bottoms are provided with inlet part, dielectric layer 8 in accommodating cavity 7 is met after water-soluble solution, the on-off component 5 that is engaged in triggering assembly 7 resets and cuts off flow channel between water intakes and water outlet, its concrete structure and working procedure will be described in more detail below.
On-off component 5 bottoms stretch into accommodating cavity 7 and with dielectric layer 8 butts, like this when water purifier leaks, the inlet part leaking by accommodating cavity 7 bottoms enters accommodating cavity 7 and makes a part for dielectric layer 8 be dissolved in water, thereby reduced the height of dielectric layer 8 in accommodating cavity 7, and therefore drive on-off component 5 to move down, make on-off component 5 blocking-up water intakes 3, realize and automatically cut off the function that water intake prevention is leaked.
In the present embodiment, at the dielectric layer 8 of lower shell body 2 interior settings, be salt deposit, when running into water, salt is dissolvable in water water.Certainly, the material that dielectric layer 8 also can be met water-soluble solution, degraded or decomposition by other forms, and such as effervescent tablet, the hard scraps of paper etc. dissolved, degrades or decompose as long as can realize dielectric layer 8 when meeting water, and the whole height of dielectric layer 8 is reduced.
In the present embodiment, on-off component 5 adopts the structure of pilot valve, specifically, in upper shell 1, be provided with the inner chamber being connected with water outlet with water intake, on-off component 5 is arranged in this inner chamber, on-off component 5 comprises barrier film 10, back pressure chamber 9 and switch part 6, and barrier film 10 is arranged at back pressure chamber 9 tops, and is separated with switch part 6.Barrier film 10 has the by-pass hole 11 that is communicated with water intake 3 and back pressure chamber 9, water outlet 4 places have relief hole 12 and pass to mutually formation pressure release passage with back pressure chamber 9, be that relief hole 12 communicates with back pressure chamber 9 by pressure release passage, while making water intake 3 conducting, current flow to back pressure chamber 9 by by-pass hole 11, and current are realized pressure release through relief hole 12 and water outlet 4 outflows again.Switch part 6 comprises elastic member 62 and the Sealing 63 that one end extends to the thrust valve rod 61 of back pressure chamber 9 and is located on thrust valve rod 61, thrust valve rod 61 can be along its axially reciprocating, and Sealing 63 is by the motion blocking-up pressure release passage of thrust valve rod 61.When normal open state, thrust valve rod 61 is under the effect of elastic member 62, keep location and with the upper-end surface butt of dielectric layer 8, relief hole 12 is connected with back pressure chamber 9 simultaneously, because the aperture of relief hole 12 is greater than the aperture of by-pass hole 11, the pressure release amount of back pressure chamber 9 is greater than rate of water make-up, under the effect of differential water pressures, thereby on-off component 5 is backed down, make water intake 3 keep on state downwards; When water purifier leaks, dielectric layer 8 reduces height because meeting water-soluble solution, drive thrust valve rod 61 to move down, when thrust valve rod 61 is displaced downwardly to precalculated position, Sealing 63 is by the channel enclosed between back pressure chamber 9 and relief hole 12, make the pressure of back pressure chamber 9 become large and will in on-off component 5, be pushed into water intake 3 gradually, until water intake 3 is sealed completely, realize the automatic water intake that cuts off when water purifier leaks and stop the function of leaking.After water purifier leakage problem solves, then meet water-soluble medium to the interior interpolation of accommodating cavity 7, thrust valve rod 61 is resetted, the Protective valve that leaks returns to normal open state position, realizes reusing of the Protective valve that leaks.Certainly, switch part 6 of the present invention also can not arrange elastic member 62, by the self gravitation of thrust valve rod 61, is realized and being moved down.
Further, the bottom of thrust valve rod 61 is provided with annular protrusion 64, the bottom surface of upper shell 1 is fixed in one end of elastic member 62, its the other end and annular protrusion 64 butts, when thrust valve rod 61 moves down certain distance, because annular protrusion 64 radial dimensions are greater than the diameter of the upper end-hole of accommodating cavity 7, make annular protrusion 64 be pressed on the upper end-hole place of accommodating cavity 7, play the position-limiting action that thrust valve rod 61 is moved down.
In another optional embodiment, valve body also can adopt integrative-structure.
Further, accommodating cavity 7 is cylindricality or other suitable geometrical shape, as long as can realize, is installed in and guarantees that dielectric layer 8 dissolves.
Further, the inlet part of accommodating cavity 7 bottoms is made by steel wire.
As Fig. 2, shown in Fig. 3, the present invention in use, as shown in Figure 2, in the present invention, leak Protective valve during in normal open state, thrust valve rod 61 is positioned at initial position under the effect of the upper-end surface of elastic member 62 and dielectric layer 8, relief hole 12 is connected with back pressure chamber 9, make the part current that flowed into by water intake 3 to enter back pressure chamber 9 by by-pass hole 11, by relief hole 12, flow to water outlet 4 again, because the aperture of relief hole 12 is greater than the aperture of by-pass hole 11, the pressure release amount of back pressure chamber 9 is greater than rate of water make-up, thereby the barrier film 10 of on-off component 5 is backed down downwards, make water intake 3 keep on state, as shown in Figure 3, when water purifier leaks, due to accommodating cavity 7 bottom openings and contact with ground, water infiltrates dielectric layer 8 bottoms by accommodating cavity 7, dielectric layer 8 reduces height because meeting water-soluble solution, and thrust valve rod 61 moves down thereupon, when the annular protrusion 64 of thrust valve rod 61 is pressed on the upper end-hole place of accommodating cavity 7, Sealing 63 is just by the channel seal between back pressure chamber 9 and relief hole 12, to stop back pressure chamber 9 pressure releases, along with the increase of the back pressure chamber 9 interior water yields, the pressure of back pressure chamber 9 becomes large and will in on-off component 5, be pushed into water intake 3 gradually, until water intake 3 is sealed completely, realizes the automatic water intake that cuts off when water purifier leaks and stops the function of leaking.
As shown in Figure 4, Figure 5, in another optional embodiment of the present invention, on-off component 5 adopts the structure of stop valve, and on-off component 5 comprises thrust valve rod 13 and is arranged on the Sealing 14 on thrust valve rod 13, thrust valve rod 13 and 7 interlocks of triggering assembly.
As shown in Figure 4, triggering assembly 7 is the holding element 16 of a clamping medium layer 8 (effervescent tablet), and dielectric layer 8 is met after water-soluble solution, and the on-off component 5 that is engaged in holding element 16 resets and cuts off flow channel between water intake and water outlet.
As shown in Figure 5, be arranged with elastic member 15 on thrust valve rod 13, the dielectric layer 8 of holding element 16 clampings is met after water-soluble solution, and elastic member 15 promotes thrust valve rod 13 and closes flow channel, plays and stops the function of leaking.
Detailed explanation for the respective embodiments described above, its object is only the present invention to make an explanation, so that can understand better the present invention, but, it is limitation of the present invention that these descriptions can not be construed to any reason, particularly, each feature of describing in different mode of executions is combination in any mutually also, thereby form other mode of executions, except there being clearly contrary description, these features should be understood to can be applied in any one mode of execution, and are also not only confined to described mode of execution.
Claims (8)
1. the Protective valve that leaks; comprise valve body, water intake, water outlet, for being communicated with or blocking the on-off component of flow channel between described water intake and water outlet; it is characterized in that; the described Protective valve that leaks also comprises triggering assembly; described triggering assembly comprises meets water-soluble dielectric layer, and described triggering assembly dissolves the described on-off component of triggering by described dielectric layer blocks flow channel between described water intake and water outlet.
2. the Protective valve that leaks as claimed in claim 1, is characterized in that, described on-off component is pilot valve, and the pressure release passage between the back pressure chamber of described pilot valve and described water outlet is provided with the switch part with described triggering assembly interlock.
3. the Protective valve that leaks as claimed in claim 2, is characterized in that, described switch part comprises thrust valve rod and is arranged on the Sealing on described thrust valve rod, described thrust valve rod and the interlock of described triggering assembly.
4. the Protective valve that leaks as claimed in claim 3, is characterized in that, on described thrust valve rod, is arranged with elastic member, and after described triggering assembly triggers, described elastic member promotes described thrust valve rod and blocks described pressure release passage.
5. the Protective valve that leaks as claimed in claim 1; it is characterized in that; described triggering assembly is the accommodating cavity of dielectric layer described in a splendid attire, and the dielectric layer in described accommodating cavity is met after water-soluble solution, and the on-off component that is engaged in described triggering assembly resets and cuts off flow channel between water intake and water outlet.
6. the Protective valve that leaks as claimed in claim 1; it is characterized in that; described triggering assembly is the holding element of the described dielectric layer of a clamping, and described dielectric layer is met after water-soluble solution, and the described on-off component that is engaged in described holding element resets and cuts off flow channel between water intake and water outlet.
7. the Protective valve that leaks as claimed in claim 1, is characterized in that, described on-off component comprises thrust valve rod and is arranged on the Sealing on described thrust valve rod, described thrust valve rod and the interlock of described triggering assembly.
8. the Protective valve that leaks as claimed in claim 7, is characterized in that, on described thrust valve rod, is arranged with elastic member, and after described triggering assembly triggers, described elastic member promotes described thrust valve rod and closes described flow channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410277032.6A CN104048086B (en) | 2014-01-26 | 2014-06-19 | Water-leakage protection valve |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014200513845 | 2014-01-26 | ||
| CN201420051384.5 | 2014-01-26 | ||
| CN201420051384 | 2014-01-26 | ||
| CN201410277032.6A CN104048086B (en) | 2014-01-26 | 2014-06-19 | Water-leakage protection valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104048086A true CN104048086A (en) | 2014-09-17 |
| CN104048086B CN104048086B (en) | 2017-05-17 |
Family
ID=51501303
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420330647.6U Expired - Lifetime CN203880172U (en) | 2014-01-26 | 2014-06-19 | Water leakage protective valve |
| CN201410277032.6A Active CN104048086B (en) | 2014-01-26 | 2014-06-19 | Water-leakage protection valve |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420330647.6U Expired - Lifetime CN203880172U (en) | 2014-01-26 | 2014-06-19 | Water leakage protective valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN203880172U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106108671A (en) * | 2016-08-29 | 2016-11-16 | 合肥华凌股份有限公司 | Water valve assembly and water dispenser |
| CN106988704A (en) * | 2016-01-21 | 2017-07-28 | 中国石油化工股份有限公司 | A kind of down-hole string pressure-bearing blanking plug |
| CN109463262A (en) * | 2018-02-11 | 2019-03-15 | 徐伟科 | It is a kind of to pour liquid device automatically |
| CN109469752A (en) * | 2018-02-11 | 2019-03-15 | 徐伟科 | A kind of liquid level easing valve |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203880172U (en) * | 2014-01-26 | 2014-10-15 | 艾欧史密斯(中国)热水器有限公司 | Water leakage protective valve |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4516753A (en) * | 1983-06-15 | 1985-05-14 | Thomsen Jack W | Faucet device with replaceable valve cartridge |
| CN2053701U (en) * | 1989-08-31 | 1990-02-28 | 田俊 | Dual valve water tap |
| CN101629645A (en) * | 2008-07-18 | 2010-01-20 | 叶萍 | Leakage disconnecting valve |
| CN201513572U (en) * | 2009-10-30 | 2010-06-23 | 黄彪 | Water leakage prevention valve |
| CN201672106U (en) * | 2010-04-28 | 2010-12-15 | 宏义兴业有限公司 | Anti-leakage cut-off device |
| CN202545928U (en) * | 2012-04-24 | 2012-11-21 | 科斯特(厦门)节水设备有限公司 | Leakage-detecting safety self-closing valve |
| CN203115213U (en) * | 2013-02-01 | 2013-08-07 | 慈溪市润鑫电器有限公司 | Water leakage protective device |
| CN203146957U (en) * | 2013-01-25 | 2013-08-21 | 沁园集团股份有限公司 | Seepage-proof water valve and device using same |
| CN103742708A (en) * | 2014-01-24 | 2014-04-23 | 杭州神林电子有限公司 | Automatic stop valve with water leakage induction function |
| CN203880172U (en) * | 2014-01-26 | 2014-10-15 | 艾欧史密斯(中国)热水器有限公司 | Water leakage protective valve |
-
2014
- 2014-06-19 CN CN201420330647.6U patent/CN203880172U/en not_active Expired - Lifetime
- 2014-06-19 CN CN201410277032.6A patent/CN104048086B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4516753A (en) * | 1983-06-15 | 1985-05-14 | Thomsen Jack W | Faucet device with replaceable valve cartridge |
| CN2053701U (en) * | 1989-08-31 | 1990-02-28 | 田俊 | Dual valve water tap |
| CN101629645A (en) * | 2008-07-18 | 2010-01-20 | 叶萍 | Leakage disconnecting valve |
| CN201513572U (en) * | 2009-10-30 | 2010-06-23 | 黄彪 | Water leakage prevention valve |
| CN201672106U (en) * | 2010-04-28 | 2010-12-15 | 宏义兴业有限公司 | Anti-leakage cut-off device |
| CN202545928U (en) * | 2012-04-24 | 2012-11-21 | 科斯特(厦门)节水设备有限公司 | Leakage-detecting safety self-closing valve |
| CN203146957U (en) * | 2013-01-25 | 2013-08-21 | 沁园集团股份有限公司 | Seepage-proof water valve and device using same |
| CN203115213U (en) * | 2013-02-01 | 2013-08-07 | 慈溪市润鑫电器有限公司 | Water leakage protective device |
| CN103742708A (en) * | 2014-01-24 | 2014-04-23 | 杭州神林电子有限公司 | Automatic stop valve with water leakage induction function |
| CN203880172U (en) * | 2014-01-26 | 2014-10-15 | 艾欧史密斯(中国)热水器有限公司 | Water leakage protective valve |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988704A (en) * | 2016-01-21 | 2017-07-28 | 中国石油化工股份有限公司 | A kind of down-hole string pressure-bearing blanking plug |
| CN106988704B (en) * | 2016-01-21 | 2020-07-10 | 中国石油化工股份有限公司 | Pressure-bearing blanking plug for underground pipe column |
| CN106108671A (en) * | 2016-08-29 | 2016-11-16 | 合肥华凌股份有限公司 | Water valve assembly and water dispenser |
| CN109463262A (en) * | 2018-02-11 | 2019-03-15 | 徐伟科 | It is a kind of to pour liquid device automatically |
| CN109469752A (en) * | 2018-02-11 | 2019-03-15 | 徐伟科 | A kind of liquid level easing valve |
| CN109469752B (en) * | 2018-02-11 | 2020-05-15 | 徐伟科 | Liquid level safety valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN203880172U (en) | 2014-10-15 |
| CN104048086B (en) | 2017-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203880172U (en) | Water leakage protective valve | |
| MY184722A (en) | Electronic rupture discs for interventionless barrier plug | |
| CA2967560A1 (en) | Multilateral junction with wellbore isolation | |
| GB2586758A (en) | Multilateral junction with wellbore isolation using degradable isolation componen | |
| JP6405272B2 (en) | Valve device | |
| PH12015502787A1 (en) | Self-sealing sprinkler seal and methods | |
| RU2642914C1 (en) | Hydraulic drive protection system | |
| WO2012103052A3 (en) | Well deployed heat fin for esp motor | |
| KR101332260B1 (en) | Hydraulic control valve for breaker | |
| CN202064955U (en) | Inner spraying water channel structure for cutting head of excavator | |
| KR101082981B1 (en) | Dual check valve | |
| CN110566683B (en) | Non-frequency-motion hammer-eliminating position control valve and mounting method and position control method thereof | |
| CN104695902A (en) | Hydraulic flushing system | |
| CN207796122U (en) | Liquid inlet and outlet valve for plunger pump, plunger pump and boiler | |
| KR101145007B1 (en) | the structure of nonfreezing valve | |
| CN104832656B (en) | Filtering floating type electromagnetic valve structure for fire water supply | |
| JP2015057527A (en) | Water cutoff steel sheet pile | |
| CN105526390A (en) | Pressing open type deluge valve with piston inner cavity pressure relief device | |
| EP3803031B1 (en) | Downhole completion system | |
| CN203940032U (en) | A kind of ball valve valve rod | |
| KR101311830B1 (en) | Stopper for vertical hole of the pipe | |
| CN203940034U (en) | Ball valve valve rod | |
| CN203023547U (en) | Fire hydrant antifreezing aerial drainage device | |
| KR101817165B1 (en) | Non water blockage piping work method | |
| CN104930330A (en) | Automatic lubricating structure of grab buckets |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |