CN204420126U - A kind of novel seal stage clip float valve - Google Patents
A kind of novel seal stage clip float valve Download PDFInfo
- Publication number
- CN204420126U CN204420126U CN201420774099.6U CN201420774099U CN204420126U CN 204420126 U CN204420126 U CN 204420126U CN 201420774099 U CN201420774099 U CN 201420774099U CN 204420126 U CN204420126 U CN 204420126U
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- China
- Prior art keywords
- spool
- water
- stage clip
- water intake
- diameter
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Abstract
The utility model discloses a kind of novel seal stage clip float valve, comprise water intake pipe, water intake opening and closing automatic control device and water storage box, described water intake opening and closing automatic control device comprises water intake opening and closing automatic control device spool and valve element position automatic control device, described valve element position automatic control device comprises stage clip, ball float and valve rod, described water storage box comprises water storage case lid and water storage casing, described water intake pipe is connected by landing nipple with between water storage case lid, connected by adapter sleeve between described landing nipple and water intake pipe, buoyancy of water suffered by ball float is delivered to spool through connected valve rod, the pressure of spool and landing nipple is born at stage clip two ends respectively.Have employed stage clip and ball float two structural members produce thrust to spool, effect is fast fast, can automatically produce different moisturizing speed according to lack of water situation.In the design of whole valve body, each structural member is compact as far as possible, whole valve body is taken up room little.The water level be applicable in agricultural production regulates, to realize the effect of automatic irrigation; Or in other water level self-controlling device.
Description
Technical field
The utility model relates to a kind of internally piloted valve structure-design technique field, particularly a kind of novel seal stage clip float valve.
Background technique
In irrigation in agricultural production, if realize the automatic adjustment of water level, then can realize the Unmanned operation of crop irrigation, save very large labor cost, and can water in real time, keep stable level, be conducive to growing up strong and sturdy of crop; This other water level that needs external regulates in automatic control device, and such as water reservoir, water-flushing device etc., also have demand to the automatic adjustment of water level.Float valve is exactly a kind of like this device that can realize water auto-regulation.Traditional float valve mostly is integral type or open, wherein integral type float valve is when valve inner structural member is due to frequent operation after fatigue ruption, probably scrap with regard to whole, open float valve then has more phenomenons such as now leaking, causes the problems such as pollution; Also the enclosed construction type of part is there is in existing float valve, but attachment portion is simple, valve body is loosening, the chatter of high frequency is there will be during use, permanent use there will be the vibration damage of structural member, as water intake can not be closed in time after the water surface goes up, the problem such as probably cause that valve body is rushed to open.And the many buoyancy only adopting ball float to provide of existing valve body closes water intake, the closedown of water intake is unreliable, occurs problems such as leaking, drip.Therefore, being necessary to design a kind of novel float valve, is be made up of structural member, each structural member has commutativity, and is of compact construction, and is connected firmly, long service life, good airproof performance between structural member, the control that water intake opens and closes will respond fast, closes reliable etc.
Model utility content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of novel seal stage clip float valve, can control the opening and closing of current water intake in real time, open current size can automatically adapt to according to case hydropenia situation and select, valve body soundness is good, compact structure, good airproof performance.
The utility model solves the technological scheme that its technical problem adopts:
A kind of novel seal stage clip float valve, comprise water intake pipe, water intake opening and closing automatic control device and water storage box, described water intake opening and closing automatic control device comprises water intake opening and closing automatic control device spool and valve element position automatic control device, described valve element position automatic control device comprises stage clip, ball float and valve rod, described water storage box comprises water storage case lid and water storage casing, described water intake pipe is connected by landing nipple with between water storage case lid, connected by adapter sleeve between described landing nipple and water intake pipe, buoyancy of water suffered by ball float is delivered to spool through connected valve rod, the pressure of spool and landing nipple is born at stage clip two ends respectively.
In the utility model, described spool tip portion is conical boss shape, and upper surface diameter is d
3ucoordinate with the conical bore of water intake pipe, fitting surface is inclined-plane, is closed and is opened water intake, not only water (flow) direction decomposed by the lifting of spool, alleviate the impact of current to spool face, also by the selection arranging the different water intake velocity of adaptation of slope, described spool annular upper face section coordinates with the intermediate portion of water intake pipe annular bottom surface, and the headstage ground of described spool is designed with annular groove, for being installed into nozzle sealing ring, the middle part of described spool is diameter is d
3mfor cylindrical, the bottom design of described spool has annular boss, and the external diameter of the base circle boss of spool equals the internal diameter of stage clip, and for installing the top of stage clip, being designed with diameter in the base circle boss of described spool is d
3dcylinder shape groove, for the top of fixing valve rod, therebetween for being threaded.
In the utility model, the top cylindrical groove of described water intake pipe is water intake, and the middle part inner hole surface of described water intake pipe is the conical surface of feed water flow process, and the upper surface diameter of conical surface equals d
3u, the bottom cylindrical groove of described water intake pipe is the inner cylindrical surface holding and limit current, and the outside, bottom of described water intake pipe is outside thread face, and coordinate with the top inner face of adapter sleeve, the bottom inner portion of described water intake pipe is diameter is d
1dcylndrical surface, and d
1d>d
3m.
In the utility model, the top inner face of described adapter sleeve is diameter is d
6uinner threaded surface, the bottom endoporus of described adapter sleeve is internal diameter is d
6dcylndrical surface, and be Spielpassung between landing nipple.
In the utility model, described landing nipple top design has the boss of two different-diameters, above the diameter d of boss
7ube less than the diameter d of boss below
7d, lower boss being placed with internal diameter is d
7u, external diameter is d
6uintermediate seal circle, the endoporus of described landing nipple is the ladder endoporus of three different-diameters, and diameter is respectively d
71, d
72and d
73, and d
72<d
71<d
7, wherein d
71equal the outside diameter d of stage clip
4o, d
72be greater than the middle part outside diameter d of valve rod
8m, described landing nipple bottom outer is flank of thread, is threaded with between water storage case lid.
In the utility model, the external diameter of described stage clip is d
4o, internal diameter is d
4i, external diameter equals the uppermost diameter of bore d of landing nipple
71, internal diameter equals the middle part outside diameter d of valve rod
8mthe top of stage clip is connected on the bottom boss of spool, the bottom of stage clip is connected on the uppermost endoporus of landing nipple, and when the top conical face of spool coordinates with the middle part inner circle taper hole of water intake pipe, stage clip is in nature elongation state, when spool declines, to receive the elastic force effect upwards of stage clip, elastic force is less than water flow pressure, to ensure that water can enter, it is lower that spool declines, and suffered elastic force is larger.
In the utility model, described valve rod is three sections of ladder solid cylindrical, and diameter is respectively d
8u, d
8mand d
8d, and d
8u=d
8d<d
8m, valve rod upper end is flank of thread, links together with spool.
In the utility model, described ball float comprises the top cylindrical pipe and bottom hollow spheres that are fixed together, top cylindrical bore d in described ball float
xiequal valve stem end outside diameter d
8u.
In the utility model, be connected between the top of described water storage case lid and the bottom of landing nipple, the bottom of water storage case lid is connected with water storage casing.
In the utility model, described water storage casing bottom design has osculum, is connected with outer tank.
In the utility model, described spool bears the elastic force F upwards of stage clip
4with the buoyancy F upwards that ball float transmits through valve rod
x, meanwhile, the pressure F of the current of the downward water intake that spool also bears
1.By law of connected vessels, the water level of water level in water storage box height and outer tank just equal.Work as F
4+ F
x>=F
1time, spool can seal the middle part endoporus of water intake pipe, and water source cannot flow into, and the water level of water storage box and outer tank remains unchanged.When the discharge reduction in outer tank, water yield water level in water storage box decreases, ball float declines, spool declines thereupon, cause occurring space between the middle part endoporus of spool top and water intake pipe, current flow into through this space, water level in water storage box is lower, it is lower that ball float and spool just decline, space between spool and water intake pipe is larger, and water intake velocity is faster, the rising of groundwater level in water storage box faster, along with the rise of water level, ball float and spool also rise thereupon until water level reaches designated water level close water intake.
In the utility model, described ball float has multiple specification for displacement, can adapt to water surface height in different inlet water pressure sizes, water storage box.
In the utility model, after valve integral installation, the shaft axis of the top of described water intake pipe, spool, stage clip, valve rod, water storage case lid, adapter sleeve and landing nipple on the same line.
The beneficial effects of the utility model are:
(1) in valve body current process structure between be all designed to be threaded, avoid valve body key position loosen, enhance soundness;
(2) have employed stage clip and ball float two structural members produce thrust to spool, effect is fast fast, can automatically produce different moisturizing speed according to lack of water situation;
(3), in the design of whole valve body, each structural member is compact as far as possible, whole valve body is taken up room little;
(4) have employed the ball float of multiple different size, and joint, upper end consistent size, the ball float of different size can be changed according to different demand;
(5) water intake is inclined-plane, is closed and is opened, not only water (flow) direction decomposed, alleviate the impact of current to spool face by the lifting of spool, also by the selection arranging the different water intake velocity of adaptation of slope;
(6) between spool and water intake pipe, and all have employed seal ring between water intake pipe and landing nipple, make valve seal good, water-tight, and more clean.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is that the utility model installs schematic appearance and sectional view;
Fig. 2 is top view and the sectional view of water intake pipe in the utility model;
Fig. 3 is top view and the sectional view of inlet seal circle in the utility model;
Fig. 4 is top view and the sectional view of spool in the utility model;
Fig. 5 is top view and the sectional view of intermediate seal circle in the utility model;
Fig. 6 is top view and the sectional view of adapter sleeve in the utility model;
Fig. 7 is top view and the sectional view of landing nipple in the utility model;
Fig. 8 is side view and the top view of valve rod in the utility model;
Fig. 9 is the front elevation of water storage case lid in the utility model, top view and sectional view;
Figure 10 is front elevation and the sectional view of ball float in the utility model;
Figure 11 is the side view of water storage casing in the utility model, top view and sectional view;
Figure 12 is the explosive view of each structure member of the utility model;
In figure: 1---water intake pipe, 2---inlet seal circle, 3---spool, 4---stage clip, 5---intermediate seal circle, 6---adapter sleeve, 7---landing nipple, 8---valve rod, 9---water storage case lid, 10---ball float, 11---water storage casing.
Embodiment
As shown in Fig. 1 ~ Figure 12, a kind of novel seal stage clip float valve, comprise water intake pipe 1, water intake opening and closing automatic control device and water storage box, described water intake opening and closing automatic control device comprises water intake opening and closing automatic control device spool 3 and valve element position automatic control device, described valve element position automatic control device comprises stage clip 4, ball float 10 and valve rod 8, described water storage box comprises water storage case lid 9 and water storage casing 11, described water intake pipe 1 is connected by landing nipple 7 with between water storage case lid 9, connected by adapter sleeve 6 between described landing nipple 7 and water intake pipe 1, buoyancy of water suffered by ball float 10 is delivered to spool 3 through connected valve rod 8, the pressure of spool 3 and landing nipple 7 is born at stage clip 4 two ends respectively.
Described spool 3 tip portion is conical boss shape, in the present embodiment, upper surface diameter is 5mm, coordinates with the conical bore of water intake pipe 1, and fitting surface is inclined-plane, close by the lifting of spool and open water intake, not only water (flow) direction is decomposed, alleviate the impact of current to spool face, also by the selection arranging the different water intake velocity of adaptation of slope, in the present embodiment, inclined-plane and vertical direction are 75 °.Described spool 3 annular upper face section coordinates with the intermediate portion of water intake pipe 1 annular bottom surface, the headstage ground of described spool 3 is designed with annular groove, for being installed into nozzle sealing ring 2, to be diameters be at the middle part of described spool 3 32mm highly for 12mm be cylindrical, the bottom design of described spool 3 has the annular boss of external diameter 12mm internal diameter 8mm, and the external diameter of the base circle boss of spool 3 equals the internal diameter of stage clip 4, for installing the top of stage clip 4, for the top of fixing valve rod 8 in the base circle boss of described spool 3, therebetween for being threaded.The total length of described spool 3 is 25.6mm, and wherein the height of conical surface is 10mm, and the height of draw-in groove is 1.6mm, and the cylindrical height in middle part is 12mm.
The top cylindrical groove of described water intake pipe 1 is the water intake of external diameter 32mm internal diameter 25mm, the middle part inner hole surface of described water intake pipe 1 is the conical surface of feed water flow process, the upper surface diameter of conical surface equals 5mm, the bottom cylindrical groove of described water intake pipe 1 is the inner cylindrical surface holding and limit current, the outside, bottom of described water intake pipe 1 is outside thread face, coordinate with the top inner face of adapter sleeve 6, the bottom inner portion of described water intake pipe 1 is diameter is 42mm cylndrical surface.The total length of water intake pipe 1 is 64mm, and wherein, top female parts length is 18mm, and bottom female parts length is 36mm, and the height of cone shape hole is 10mm, and the length of bottom flank of thread is 16mm.
The top inner face of described adapter sleeve 6 is inner threaded surface, and the overall diameter of described adapter sleeve 6 is 52mm, the cylndrical surface of endoporus to be internal diameter be 34mm bottom it, and is Spielpassung between landing nipple 7.The total length of adapter sleeve 6 is 24mm, and wherein, female parts length is 20mm.
Described landing nipple 7 top design has the boss of two different-diameters, the diameter of boss is 44mm below, it is 40mm that its upper surface is placed with internal diameter, external diameter is the intermediate seal circle 5 of 47mm, the endoporus of described landing nipple 7 is the ladder endoporus of three different-diameters, diameter is respectively 14mm, 11mm and 26mm, and described landing nipple 7 bottom outer is flank of thread, is threaded with between water storage case lid 9.The total height of described landing nipple 7 is 56mm, and first, its middle and upper part annular boss height is 2mm, and the height of second annular boss is 4mm, and bottom level is 50mm.
The external diameter of described stage clip 4 equals the uppermost diameter of bore of landing nipple 7, internal diameter equals the middle part external diameter of valve rod 8, the top of stage clip 4 is connected on the bottom boss of spool 3, the bottom of stage clip 4 is connected on the uppermost endoporus of landing nipple 7, when the top conical face of spool 3 coordinates with the middle part inner circle taper hole of water intake pipe 1, stage clip 4 is in nature elongation state, when spool 3 declines, the elastic force effect upwards of stage clip 4 will be received, elastic force is less than water flow pressure, to ensure that water can enter, it is lower that spool 3 declines, and suffered elastic force is larger.
Described valve rod 8 is three sections of ladder solid cylindrical, and diameter is respectively 8mm, 10mm and 8mm, and the height of three sections is respectively 16mm, 68mm and 16mm, and valve rod 8 upper end is flank of thread, links together with spool (3).
Described ball float 10 comprises the top cylindrical pipe and bottom hollow spheres that are fixed together, and in described ball float 10, top cylindrical bore equals valve rod 8 outer end diameter d
8u.
The top of described water storage case lid 9 is connected with between the bottom of landing nipple 7, and the bottom of water storage case lid 9 is connected with water storage casing 11.
Described water storage casing 11 bottom design has osculum, is connected with outer tank.
Described spool 3 bears the elastic force F upwards of stage clip 4
4with the buoyancy F upwards that ball float 10 transmits through valve rod 8
x, meanwhile, the pressure F of the current of the downward water intake that spool 3 also bears
1.By law of connected vessels, the water level of water level in water storage box height and outer tank just equal.Work as F
4+ F
x>=F
1time, spool can seal the middle part endoporus of water intake pipe 1, and water source cannot flow into, and the water level of water storage box and outer tank remains unchanged.When the discharge reduction in outer tank, water yield water level in water storage box decreases, ball float 10 declines, spool 3 declines thereupon, cause occurring space between the middle part endoporus of spool 3 top and water intake pipe 1, current flow into through this space, water level in water storage box is lower, it is lower that ball float 10 and spool 3 just decline, space between spool 3 and water intake pipe 1 is larger, and water intake velocity is faster, the rising of groundwater level in water storage box faster, along with the rise of water level, ball float 10 and spool 3 also rise thereupon until water level reaches designated water level close water intake.
Described ball float 10 has multiple specification to supply displacement, and can adapt to water surface height in different inlet water pressure sizes, water storage box, in the present embodiment, the internal diameter of ball float is 56mm.
After installation, the shaft axis of the top of described water intake pipe 1, spool 3, stage clip 4, valve rod 8, water storage case lid 9, adapter sleeve 6 and landing nipple 7 on the same line.
Claims (13)
1. a novel seal stage clip float valve, it is characterized in that: comprise water intake pipe (1), water intake opening and closing automatic control device and water storage box, described water intake opening and closing automatic control device comprises water intake opening and closing automatic control device spool (3) and valve element position automatic control device, described valve element position automatic control device comprises stage clip (4), ball float (10) and valve rod (8), described water storage box comprises water storage case lid (9) and water storage casing (11), described water intake pipe (1) is connected by landing nipple (7) with between water storage case lid (9), connected by adapter sleeve (6) between described landing nipple (7) and water intake pipe (1), the suffered buoyancy of water of ball float (10) is delivered to spool (3) through connected valve rod (8), the pressure of spool (3) and landing nipple (7) is born at stage clip (4) two ends respectively.
2. a kind of novel seal stage clip float valve according to claim 1, it is characterized in that: described spool (3) tip portion is conical boss shape, upper surface diameter is d
3ucoordinate with the conical bore of water intake pipe (1), fitting surface is inclined-plane, close by the lifting of spool and open water intake, not only water (flow) direction is decomposed, alleviate the impact of current to spool face, also by the selection arranging the different water intake velocity of adaptation of slope, described spool (3) annular upper face section coordinates with the intermediate portion of water intake pipe (1) annular bottom surface, the headstage ground of described spool (3) is designed with annular groove, for being installed into nozzle sealing ring (2), the middle part of described spool (3) is diameter is d
3mfor cylindrical, the bottom design of described spool (3) has annular boss, and the external diameter of the base circle boss of spool (3) equals the internal diameter of stage clip (4), for installing the top of stage clip (4), being designed with diameter in the base circle boss of described spool (3) is d
3dcylinder shape groove, for the top of fixing valve rod (8), therebetween for being threaded.
3. a kind of novel seal stage clip float valve according to claim 1, it is characterized in that: the top cylindrical groove of described water intake pipe (1) is water intake, the middle part inner hole surface of described water intake pipe (1) is the conical surface of feed water flow process, and the upper surface diameter of conical surface equals d
3uthe bottom cylindrical groove of described water intake pipe (1) is the inner cylindrical surface holding and limit current, the outside, bottom of described water intake pipe (1) is outside thread face, and coordinate with the top inner face of adapter sleeve (6), the bottom inner portion of described water intake pipe (1) is diameter is d
1dcylndrical surface, and d
1d>d
3m.
4. a kind of novel seal stage clip float valve according to claim 1, is characterized in that: the top inner face of described adapter sleeve (6) is diameter is d
6uinner threaded surface, the bottom endoporus of described adapter sleeve (6) is internal diameter is d
6dcylndrical surface, and be Spielpassung between landing nipple (7).
5. a kind of novel seal stage clip float valve according to claim 1, is characterized in that: described landing nipple (7) top design has the boss of two different-diameters, above the diameter d of boss
7ube less than the diameter d of boss below
7d, lower boss being placed with internal diameter is d
7u, external diameter is d
6uintermediate seal circle (5), the endoporus of described landing nipple (7) is the ladder endoporus of three different-diameters, and diameter is respectively d
71, d
72and d
73, and d
72< d
71< d
7, wherein d
71equal the outside diameter d of stage clip (4)
4o, d
72be greater than the middle part outside diameter d of valve rod (8)
8m, described landing nipple (7) bottom outer is flank of thread, is threaded with between water storage case lid (9).
6. a kind of novel seal stage clip float valve according to claim 1, is characterized in that: the external diameter of described stage clip (4) is d
4o, internal diameter is d
4i, external diameter equals the uppermost diameter of bore d of landing nipple (7)
71, internal diameter equals the middle part outside diameter d of valve rod (8)
8mthe top of stage clip (4) is connected on the bottom boss of spool (3), the bottom of stage clip (4) is connected on landing nipple (7) uppermost endoporus, and when the top conical face of spool (3) coordinates with the middle part inner circle taper hole of water intake pipe (1), stage clip (4) is in nature elongation state, when spool (3) declines, to receive the elastic force effect upwards of stage clip (4), elastic force is less than water flow pressure, to ensure that water can enter, it is lower that spool (3) declines, and suffered elastic force is larger.
7. a kind of novel seal stage clip float valve according to claim 1, is characterized in that: described valve rod (8) is three sections of ladder solid cylindrical, and diameter is respectively d
8u, d
8mand d
8d, and d
8u=d
8d< d
8m, valve rod (8) upper end is flank of thread, links together with spool (3).
8. a kind of novel seal stage clip float valve according to claim 1, is characterized in that: described ball float (10) comprises the top cylindrical pipe and bottom hollow spheres that are fixed together, top cylindrical bore d in described ball float (10)
xiequal valve rod (8) outer end diameter d
8u.
9. a kind of novel seal stage clip float valve according to claim 1, it is characterized in that: the top of described water storage case lid (9) is connected with between the bottom of landing nipple (7), the bottom of water storage case lid (9) is connected with water storage casing (11).
10. a kind of novel seal stage clip float valve according to claim 1, is characterized in that: described water storage casing (11) bottom design has osculum, is connected with outer tank.
11. a kind of novel seal stage clip float valves according to claim 1, is characterized in that: described spool (3) bears the elastic force F upwards of stage clip (4)
4with the buoyancy F upwards that ball float (10) transmits through valve rod (8)
x, meanwhile, the pressure F of the current of the downward water intake that spool (3) also bears
1, by law of connected vessels, the water level of water level in water storage box height and outer tank just equal, works as F
4+ F
x>=F
1time, spool can seal the middle part endoporus of water intake pipe (1), water source cannot flow into, the water level of water storage box and outer tank remains unchanged, when the discharge reduction in outer tank, water yield water level in water storage box decreases, ball float (10) declines, spool (3) declines thereupon, cause occurring space between the middle part endoporus of spool (3) top and water intake pipe (1), current flow into through this space, water level in water storage box is lower, it is lower that ball float (10) and spool (3) just decline, space between spool (3) and water intake pipe (1) is larger, water intake velocity is faster, rising of groundwater level in water storage box faster, along with the rise of water level, ball float (10) and spool (3) also rise thereupon until water level reaches designated water level close water intake.
12. a kind of novel seal stage clip float valves according to claim 1, is characterized in that: described ball float (10) has multiple specification for displacement, can adapt to water surface height in different inlet water pressure sizes, water storage box.
13. a kind of novel seal stage clip float valves according to claim 1, it is characterized in that: after installation, the shaft axis of the top of described water intake pipe (1), spool (3), stage clip (4), valve rod (8), water storage case lid (9), adapter sleeve (6) and landing nipple (7) on the same line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420774099.6U CN204420126U (en) | 2014-12-09 | 2014-12-09 | A kind of novel seal stage clip float valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420774099.6U CN204420126U (en) | 2014-12-09 | 2014-12-09 | A kind of novel seal stage clip float valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204420126U true CN204420126U (en) | 2015-06-24 |
Family
ID=53470497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420774099.6U Expired - Fee Related CN204420126U (en) | 2014-12-09 | 2014-12-09 | A kind of novel seal stage clip float valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204420126U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339472A (en) * | 2017-07-18 | 2017-11-10 | 肖海涛 | A kind of farmland Self-control water saving valve |
| CN109258529A (en) * | 2018-11-28 | 2019-01-25 | 中国海洋大学 | Spring up hatching system |
| CN109538814A (en) * | 2018-12-28 | 2019-03-29 | 上海市能水电集成有限公司 | A kind of mute ball-cock assembly |
| CN110800591A (en) * | 2019-11-08 | 2020-02-18 | 龙安 | Multifunctional green belt irrigation device and working method |
-
2014
- 2014-12-09 CN CN201420774099.6U patent/CN204420126U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339472A (en) * | 2017-07-18 | 2017-11-10 | 肖海涛 | A kind of farmland Self-control water saving valve |
| CN109258529A (en) * | 2018-11-28 | 2019-01-25 | 中国海洋大学 | Spring up hatching system |
| CN109538814A (en) * | 2018-12-28 | 2019-03-29 | 上海市能水电集成有限公司 | A kind of mute ball-cock assembly |
| CN109538814B (en) * | 2018-12-28 | 2021-09-03 | 上海市能水电集成有限公司 | Mute ball float valve |
| CN110800591A (en) * | 2019-11-08 | 2020-02-18 | 龙安 | Multifunctional green belt irrigation device and working method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20151209 |
|
| EXPY | Termination of patent right or utility model |