CN104154311B - Ratchet mechanical count inverse-stopping type water trap - Google Patents
Ratchet mechanical count inverse-stopping type water trap Download PDFInfo
- Publication number
- CN104154311B CN104154311B CN201410359932.5A CN201410359932A CN104154311B CN 104154311 B CN104154311 B CN 104154311B CN 201410359932 A CN201410359932 A CN 201410359932A CN 104154311 B CN104154311 B CN 104154311B
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- China
- Prior art keywords
- ratchet
- spool
- central tube
- axle
- inner sleeve
- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000012634 fragment Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 6
- 208000031481 Pathologic Constriction Diseases 0.000 claims 1
- 210000001215 vagina Anatomy 0.000 claims 1
- 239000003673 groundwater Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 108091006146 Channels Proteins 0.000 description 3
- 206010016807 Fluid retention Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002352 surface water Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
- B01D35/046—Plug, tap, or cock filters filtering elements mounted in or on a faucet the filtering element being mounted in the faucet plug
-
- 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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/16—Valves
- B01D2201/167—Single-way valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
A kind of ratchet mechanical count inverse-stopping type water trap, belong to hydraulic engineering ground water drainage facility technology field, including valve pocket, inner sleeve, central tube, spool, top cover, ratchet, counting plate, spool post, filter screen, it is attached forming linker at the bottom of described valve pocket and pond, connecting in valve pocket has inner sleeve, inner sleeve to be attached by rubber ring a with valve pocket, is provided with central tube in described inner sleeve, being attached with inner sleeve outside central tube, inner side is connected with spool；Being provided with ratchet and counting plate on described central tube inner spool, counting plate is fixed together with ratchet, and inverse-stopping type water trap of the present invention has counting and anti-silting function, simple in construction, length in service life compared with other like products, can realize one-way check function.
Description
Technical field
The invention belongs to hydraulic engineering ground water drainage facility technology field, particularly to one, there is counting merit
The inverse-stopping type water trap of energy.
Background technology
Inverse-stopping type water trap is to be specially adapted for the hydraulic engineerings such as channel in the case of phreatic high, cistern
A kind of special equipment, its objective is to cut down subsoil water to the osmotic pressure of liner structure and floating torr impact, reach
To reducing the thickness of liner structure, guarantee structural safety of reducing investment outlay and improving the purpose in structure service life.
And the structure the most existing inverse-stopping type water trap constituting inverse-stopping type water trap is mainly by intake chamber, water-supplying chamber and inverse
Only dodge gate composition, check dodge gate is between intake chamber and water-supplying chamber.Level of ground water is higher than earth's surface water level
Time, check dodge gate moves upward and opens, and intake chamber and water-supplying chamber are connected state, and then reach water-retention
Purpose, water-retention complete after check dodge gate deadweight and earth's surface hydraulic pressure effect under be automatically switched off, cut off row
Aquaporin, prevents surface water from permeating the ground, and keeps the dynamic equilibrium of surface and ground water.
At present, although inverse-stopping type water trap on the market can reach to reduce structural thickness, reduce investment outlay, protects
Card structural safety and the purpose of raising durability, but still there are some problems.Such as CN201020117008.3
Disclosed a kind of inverse-stopping type water trap；A kind of anti-alluvial inverse-stopping type water trap disclosed in CN201120174836.5；
First, existing inverse-stopping type water trap can realize water-retention, but does not possess tally function, brings very for maintenance provider
Big inconvenience；Secondly, the existing anti-silting effect of inverse-stopping type water trap can further be improved；Finally, existing
Although the check dodge gate of some inverse-stopping type water traps can realize function, but only by deadweight and earth's surface hydraulic pressure
Effect is the most unreliable.
Summary of the invention
For shortcomings and deficiencies of the prior art, the technical problem to be solved in the present invention is to provide one can be real
Now counting, anti-silting and be easy to maintenance and change water inlet new-type a kind of ratchet mechanical count inverse-stopping type draining
Device.
In order to achieve the above object, the present invention designs a kind of ratchet mechanical count inverse-stopping type water trap, its feature
It is: include valve pocket, inner sleeve, central tube, spool, top cover, ratchet, counting plate, spool post, filter screen,
Being attached forming linker at the bottom of described valve pocket and pond, there is inner sleeve valve pocket interior connection, and inner sleeve leads to valve pocket
Cross rubber ring a to be attached, in described inner sleeve, be provided with central tube, carry out with inner sleeve outside central tube
Connecting, inner side is connected with spool；Wherein center, spool upper end is provided with screwed hole, passes through screw thread with spool post
Connect；Described inner sleeve top is provided with top cover, and top cover is attached by screw with inner sleeve；
Being provided with ratchet and counting plate on described central tube inner spool, counting plate is fixed together with ratchet, meter
Number dish and ratchet are provided with axle a, axle a two ends and are fixed on central tube with central tube interference fit, in the middle of axle a with
Ratchet and counting plate matched in clearance, make ratchet and counting plate rotate on axle a, and axle a is also the heart of ratchet a
Axle, central tube and ratchet a matched in clearance, ratchet a rotates around axle a；
Described filter screen is fixed with central tube, is arranged above with circular hole, radial, posts yarn on whole filter screen
Net.
The cylindrical side of described spool is provided with axial groove, passes through bottom rubber ring b and central tube bottom spool
Sealing, spool upper end is provided with annular deep trouth.
In described inner sleeve, there is gathering sill.
Described top cover bottom surface is provided with annular groove, and side has ladder hole wherein, is provided with inside macropore
Screw thread coordinates with trim ring a, is pressed in macropore by one piece of plus lens, and aperture is observation port.
Described spool post is connected together with ratchet b by axle b, and wherein ratchet b rotates around axle b, spine
Pawl a is connected together around axle a rotation with central tube by axle a, is respectively provided with one below ratchet a, ratchet b
Shell fragment, for shell fragment a and shell fragment b, provides restoring force for ratchet.
Being carved with equally spaced scale on described counting plate, spool often rises counting plate one registration of note.
Described spool post lower end has screw thread to link together with spool, upper end evolution groove make ratchet b in groove around
Axle b rotates.
Described axle b two ends and spool post interference fit are fixed on spool post, and axle b is the mandrel of ratchet b,
Middle part and ratchet b interference fits, ratchet b rotates thereon.
The top of described spool is provided with stage clip, and stage clip is mainly the sealing at spool top and central tube top and provides
Pretightning force, falls after rise for spool simultaneously and provides restoring force.
Stage clip is provided with trim ring b, provides for stage clip and supports.
The invention has the beneficial effects as follows: owing to the present invention devises the frame mode of ratchet and counting plate, so
The present invention has tally function, improves the work efficiency of water trap, and the present invention is provided with filter screen, filter
Net is fixed with central tube, has circular hole radial above, pastes gauze, prevent sandstone from entering on whole filter screen
Enter water trap, affect it and normally work.In inner sleeve of the present invention, setting tool has gathering sill, limits the rotation of spool
Turning, make spool to move up and down in central tube again, the cylindrical side of spool opens axial groove, convenient
The outflow of water, is sealed bottom central tube by rubber ring bottom spool, and annular is opened in spool upper end
Deep trouth alleviates the deadweight that spool is overall.When under water trap side hydraulic pressure and upper survey hydraulic pressure the poorest more than spool deadweight,
When the deadweight of spool post is with stage clip pressure sum, spool moves up, and at this moment produces with bottom central tube bottom spool
Raw gap makes water pass through spool cylinder side channel, inner sleeve rectangular opening flows out.When under water trap side hydraulic pressure with upper
Survey hydraulic pressure the poorest less than spool deadweight, spool post deadweight with stage clip pressure sum time, spool is moved downwardly until
Reseal with contacting bottom central tube bottom spool.This design frame mode changes setting of prior art
Meter theory, frame mode more rationalizes, and improves work efficiency.
Accompanying drawing explanation
The invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings；
Fig. 1 is overall structure schematic diagram of the present invention
1-valve pocket in figure, 2-inner sleeve, 3-central tube, 4-spool, 5-top cover, 6-axle a, 7-ratchet, 8-
Counting plate, 9-spool post, 10-axle b, 11-ratchet a, 12-ratchet b, 13-shell fragment a, 14-shell fragment b,
15-rubber ring a, 16-rubber ring b, 17-filter screen, 18-stage clip, 19-trim ring a, 20-trim ring b
Detailed description of the invention
As it is shown in figure 1, the present invention designs a kind of ratchet mechanical count inverse-stopping type water trap, including valve pocket 1, interior
Sleeve 2, central tube 3, spool 4, top cover 5, ratchet 7, counting plate 8, spool post 9, filter screen 17, institute
Stating valve pocket 1 and be attached being formed linker at the bottom of pond, connecting in valve pocket 1 has inner sleeve 2, inner sleeve 2 and valve
Set 1 is attached by rubber ring a, is provided with central tube 3 in described inner sleeve 2, outside central tube 3 and
Inner sleeve 2 is attached, and inner side is connected with spool 4；Wherein center, spool 4 upper end is provided with screwed hole,
It is threaded connection with spool post 9；Described inner sleeve 2 top is provided with top cover 5, top cover 5 and inner sleeve 2
It is attached by screw；
Being provided with ratchet 7 and counting plate 8 on described central tube 3 inner spool 4, counting plate and ratchet are fixed on one
Rising, counting plate and ratchet common axis a, axle a two ends and central tube interference fit are fixed on central tube, axle a
Centre and ratchet and counting plate matched in clearance, can make ratchet and counting plate rotate on axle a, and axle a is also
The mandrel of ratchet a, central tube and ratchet a matched in clearance, ratchet a can rotate around axle a；
Described filter screen 17 is fixed with central tube, is arranged above with circular hole, radial, posts on whole filter screen
Gauze.
Illustrate for water trap each component working principle and function as follows:
Part 1 is valve pocket, it has at the bottom of installing hole and pond and is attached forming linker.
Part 2 is inner sleeve, and it is attached by rubber ring a with valve pocket, can the dress of water trap easy to loading and unloading
Unloading, several rectangular opening are opened on top simultaneously, make water to flow out.
Cylinder centered by part 3, is attached inner side and is connected with spool, make spool in inner sleeve with inner sleeve outside it
Upper and lower movement is carried out in Tong.Having gathering sill simultaneously in inner sleeve and limit the rotation of spool, central tube is also
There is provided for ratchet and pawl b axle and support.
Part 4 is spool, and spool can move up and down in central tube again, and the cylindrical side of spool opens axle
To groove, facilitate the outflow of water, sealed bottom central tube, on spool by rubber ring b bottom spool
End is driven annular deep trouth and is alleviated the deadweight that spool is overall.Screwed hole is beaten at center, spool upper end, with spool post
Threaded.When under water trap, side hydraulic pressure is the poorest with upper survey hydraulic pressure more than spool deadweight, the deadweight of spool post and pressure
During spring pressure sum, spool moves up, and at this moment produces gap bottom spool ground portion and central tube and water is led to
Cross spool cylinder side channel, inner sleeve rectangular opening flows out.It is less than when under water trap, side hydraulic pressure is the poorest with upper side hydraulic pressure
When spool deadweight, the deadweight of spool post are with stage clip pressure sum, spool is moved downwardly until bottom spool and center
Bottom Tong, contact reseals.
Part 5 is top cover, and being attached top cover bottom surface with inner sleeve by screw has annular groove, facilitate water by
Flowing out in central tube, side has ladder hole wherein, has screw thread to coordinate with trim ring 1 inside macropore, will
One piece of plus lens is pressed in macropore, and aperture is observation port, can be observed the registration of counting plate by aperture.
Part 6 is the axle that axle a is ratchet and counting plate, and axle a two ends and central tube interference fit are fixed on center
On cylinder, with ratchet and counting plate matched in clearance in the middle of axle a, ratchet and counting plate can be made to rotate on axle a.
Axle a is also the mandrel of ratchet a, and two ends interference fit is fixed on central tube, central tube and ratchet a gap
Coordinate.
Part 7 is ratchet, and ratchet coordinates with ratchet a, ratchet b, and ratchet is connected together by screw with counting plate,
Counting plate and ratchet synchronous axial system when pawl wheel.
Ratchet counting principle: ratchet is connected by screw with counting plate, can rotate around axle a.Ratchet and
Two ratchets match, and ratchet b is connected together by axle b can rotate around axle with spool post, ratchet a
Connect together by axle a can rotate around axle with central tube, below ratchet a, ratchet b, be respectively arranged with a shell fragment,
Restoring force is provided for ratchet.When under water trap, side hydraulic pressure is the poorest with upper survey hydraulic pressure more than spool deadweight, spool post
When deadweight and stage clip pressure sum, spool moves up.Spool cornice can be made to move owing to it is connected with spool post
Ratchet moves up, and ratchet a straight-tooth coordinates with ratchet straight-tooth will stir one angle of pawl wheel, now
Ratchet b is that helical teeth coordinates with ratchet helical teeth, and ratchet can rotate.When side hydraulic pressure and upper survey hydraulic pressure under water trap
The poorest less than spool deadweight, spool post deadweight with stage clip pressure sum time, ratchet a moves down with spool post,
Now ratchet a helical teeth coordinates with ratchet helical teeth, and ratchet b straight-tooth coordinates with ratchet straight-tooth, and ratchet b is around axle b
Rotate and ratchet is motionless.
Part 8 is together with counting plate is fixed by screws in ratchet, can rotate around axle a with ratchet.Its
On be carved with equally spaced scale, spool often rises counting plate one registration of note.
Part 9 is spool post, and spool post lower end has screw thread to link together with spool, and upper end evolution groove can make
Ratchet b rotates around axle b in groove.
Part 10 is the mandrel that axle b is ratchet b, and axle b two ends and spool post interference fit are fixed on spool post,
Middle part and ratchet b interference fit, ratchet b can rotate thereon.
Part 11 is ratchet a, coordinates with ratchet.
Part 12 is ratchet b, coordinates with ratchet.
Part 13 is shell fragment a, is connected with ratchet a and spool post, provides restoring force for ratchet a.
Part 14 is shell fragment b, is connected with ratchet b and central tube, provides restoring force for ratchet b.
Part 15 is rubber ring a, for providing good sealing between valve pocket and inner sleeve.
Part 16 is rubber ring b, for providing good sealing bottom spool and bottom central tube.
Part 17 is filter screen, and filter screen is fixed with central tube, has circular hole radial above, on whole filter screen
Patch gauze, prevents sandstone from entering water trap, affects it and normally work.
Part 18 is stage clip, and the predominantly sealing at spool top and central tube top provides pretightning force, is valve simultaneously
Core falls after rise provides restoring force.
For trim ring a, fixing lens make lens fasten with top cover.
Part 20 is trim ring b, provides for stage clip and supports.
This inverse-stopping type water trap has counting and anti-silting function, simple in construction compared with other like products, makes
By life-span length, one-way check function can be realized.
Claims (10)
1. a ratchet mechanical count inverse-stopping type water trap, is characterized in that: include valve pocket (1), inner sleeve (2),
Central tube (3), spool (4), top cover (5), ratchet (7), counting plate (8), spool post (9), filter
Net (17), is attached forming linker at the bottom of described valve pocket (1) and pond, and there is inner sleeve valve pocket (1) interior connection
Cylinder (2), inner sleeve (2) is attached by rubber ring a (15) with valve pocket (1), described inner sleeve (2)
Inside being provided with central tube (3), central tube (3) outside is attached with inner sleeve (2), inner side and spool
(4) connect；Wherein spool (4) center, upper end is provided with screwed hole, with spool post (9) by screw thread even
Connect；Described inner sleeve (2) top is provided with top cover (5), and top cover (5) and inner sleeve (2) pass through screw
It is attached；
Be provided with ratchet (7) and counting plate (8) on described central tube (3) inner spool (4), counting plate with
Ratchet is fixed together, and counting plate and ratchet are provided with axle a (6), and axle a (6) two ends are joined with central tube interference
Conjunction is fixed on central tube, with ratchet and counting plate matched in clearance in the middle of axle a (6), makes ratchet and counting plate
In the upper rotation of axle a (6), axle a (6) is also the mandrel of ratchet a (11), central tube and ratchet a (11)
Matched in clearance, ratchet a (11) rotates around axle a (6)；
Described filter screen (17) is fixed with central tube, is arranged above with circular hole, and radial, on whole filter screen
Post gauze.
A kind of ratchet mechanical count inverse-stopping type water trap the most according to claim 1, is characterized in that: institute
The cylindrical side of the spool (4) stated is provided with axial groove, spool (4) bottom by rubber ring b (16) with in
Heart cylinder (3) bottom seals, and spool (4) upper end is provided with annular deep trouth.
A kind of ratchet mechanical count inverse-stopping type water trap the most according to claim 1, is characterized in that: institute
In the inner sleeve stated, there is gathering sill.
A kind of ratchet mechanical count inverse-stopping type water trap the most according to claim 1, is characterized in that: institute
Top cover (5) bottom surface stated is provided with annular groove, and side has ladder hole wherein, is provided with spiral shell inside macropore
Stricture of vagina coordinates with trim ring a (19), is pressed in macropore by one piece of plus lens, and aperture is observation port.
A kind of ratchet mechanical count inverse-stopping type water trap the most according to claim 1, is characterized in that: institute
The spool post (9) stated is connected together by axle b (10) and ratchet b (12), wherein ratchet b (12) around
Axle b (10) to rotate, ratchet a (11) is connected together around axle a (6) with central tube by axle a (6)
Rotating, ratchet a (11), ratchet b (12) lower section is respectively provided with a shell fragment, for shell fragment a (13) and shell fragment
B (14), provides restoring force for ratchet.
A kind of ratchet mechanical count inverse-stopping type water trap the most according to claim 1, is characterized in that: institute
Being carved with equally spaced scale on the counting plate (8) stated, spool often rises counting plate one registration of note.
A kind of ratchet mechanical count inverse-stopping type water trap the most according to claim 1, is characterized in that: institute
Stating spool post (9) lower end has screw thread to link together with spool, and upper end evolution groove makes ratchet b (12) at groove
Interior around axle b (10) rotation.
A kind of ratchet mechanical count inverse-stopping type water trap the most according to claim 5, is characterized in that: institute
Axle b (10) two ends stated and spool post (9) interference fit are fixed on spool post (9), axle b (10)
Being the mandrel of ratchet b (12), middle part and ratchet b (12) interference fits, ratchet b (12) turns thereon
Dynamic.
A kind of ratchet mechanical count inverse-stopping type water trap the most according to claim 1 and 2, is characterized in that:
The top of described spool is provided with stage clip (18), and stage clip is mainly the sealing at spool top and central tube top and provides
Pretightning force, falls after rise for spool simultaneously and provides restoring force.
A kind of ratchet mechanical count inverse-stopping type water trap the most according to claim 9, is characterized in that:
Stage clip (18) is provided with trim ring b (20), provides for stage clip and supports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410359932.5A CN104154311B (en) | 2014-07-25 | 2014-07-25 | Ratchet mechanical count inverse-stopping type water trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410359932.5A CN104154311B (en) | 2014-07-25 | 2014-07-25 | Ratchet mechanical count inverse-stopping type water trap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104154311A CN104154311A (en) | 2014-11-19 |
| CN104154311B true CN104154311B (en) | 2016-08-17 |
Family
ID=51879885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410359932.5A Active CN104154311B (en) | 2014-07-25 | 2014-07-25 | Ratchet mechanical count inverse-stopping type water trap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104154311B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2869516Y (en) * | 2006-02-14 | 2007-02-14 | 浙江沁园水处理科技股份有限公司 | Metering tap |
| CN201159335Y (en) * | 2008-03-04 | 2008-12-03 | 井朝清 | Check drainer |
| CN202501047U (en) * | 2012-03-26 | 2012-10-24 | 楚凤池 | Anti-siltation check type drainer |
| CN203948769U (en) * | 2014-07-25 | 2014-11-19 | 长春市艾必利务科技有限公司 | Ratchet mechanical count reverse-stop type hydathode |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPP432898A0 (en) * | 1998-06-25 | 1998-07-16 | W.G. Goetz & Sons Limited | Improved check valve arrangement for a diagnostic test point |
| US8978696B2 (en) * | 2012-09-10 | 2015-03-17 | Flomatic Corporation | Check valve |
-
2014
- 2014-07-25 CN CN201410359932.5A patent/CN104154311B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2869516Y (en) * | 2006-02-14 | 2007-02-14 | 浙江沁园水处理科技股份有限公司 | Metering tap |
| CN201159335Y (en) * | 2008-03-04 | 2008-12-03 | 井朝清 | Check drainer |
| CN202501047U (en) * | 2012-03-26 | 2012-10-24 | 楚凤池 | Anti-siltation check type drainer |
| CN203948769U (en) * | 2014-07-25 | 2014-11-19 | 长春市艾必利务科技有限公司 | Ratchet mechanical count reverse-stop type hydathode |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104154311A (en) | 2014-11-19 |
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