CN205618745U - Prevent flowing backwards valve gear and have its solenoid valve - Google Patents
Prevent flowing backwards valve gear and have its solenoid valve Download PDFInfo
- Publication number
- CN205618745U CN205618745U CN201620445478.XU CN201620445478U CN205618745U CN 205618745 U CN205618745 U CN 205618745U CN 201620445478 U CN201620445478 U CN 201620445478U CN 205618745 U CN205618745 U CN 205618745U
- Authority
- CN
- China
- Prior art keywords
- valve
- inlet channel
- backflow preventer
- valve port
- preventer device
- 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.)
- Active
Links
Landscapes
- Check Valves (AREA)
Abstract
The utility model relates to a refluence valve gear, including the valve body that has the inner chamber, the case in the valve body inner chamber is installed in the activity, be equipped with the inhalant canal with valve body inner chamber intercommunication in the valve body, exhalant canal and inlet channel, the case includes the valve block, establish the slide bar on one side of the valve block and establish at the outer end of valve block opposite side opening, the well idle slipping cover in water hole excessively that runs through is seted up to the lateral wall, well idle slipping cover stretch into inhalant canal and with inhalant canal's inner wall clearance fit, the slide bar stretch into inlet channel and inlet channel's inner wall between have a clearance of overflowing, the valve block seals up the cooperation with the valve port of intaking that the inhalant canal end was equipped with, when intaking, the valve block is kept away from into under hydraulic effect, and the water valve port moves and seals up with the valve port that admits air and laminate toward the valve port that admits air that the inlet channel end was equipped with, it is used for carrying out the elastic component that restores to the throne that restores to the throne to the case still to be equipped with one, originally, prevent the valve gear simple structure that flows backwards, the function of preventing flowing backwards is surely leaned on. Furthermore, the utility model also provides a solenoid valve that has the valve gear of preventing flowing backwards.
Description
Technical field
This utility model relates to a kind of backflow preventer device being arranged in water route.
Background technology
In field of sanitary ware, there is the watering equipment being much connected with tap water supply pipe, be generally fitted with switching control pilot between feed pipe and watering equipment in order to control the switch of current, such as angle valve, electromagnetic valve etc..When off working state, above-mentioned valve gear is typically in closure state, when tap water supply Guan Yin cut off the water negative pressure occurs time, owing to now valve gear is closed playing the effect of anti-backflow；But in actually used, be likely to occur when tap water supply pipe cut off the water negative pressure occurs time, above-mentioned valve gear is still in open mode, or although above-mentioned valve gear is closed but there is the reason such as foreign body or sealing gasket deformation at valve port and cause sealing valve port to lose efficacy, now, water in watering equipment flows back in tap water supply pipe possibly through pipeline under suction function, thus produces tap water supply pipe and pollute.Therefore prior art occurs in that the valve gear of some anti-backflows, if notification number is the Chinese utility model patent of CN202646806U, it discloses a kind of multifunction valve, there is the function of anti-backflow, but its backflow preventing structure includes the main valve clack 5 and upper flap 6 being slidably connected, and the spring 9 being arranged between main valve clack 5 and upper flap 6, this backflow preventing structure is more complicated, and owing to spring 9 is arranged between main valve clack 5 and upper flap 6, spring 9 always has a power to upper flap 6 toward the direction sealing air access ports 12, this is easily caused the problem that air access ports 12 cannot normally open air inlet, therefore so anti-backflow function of this multifunction valve may lose efficacy.
Utility model content
This utility model solves problems of the prior art, it is provided that a kind of backflow preventer device that a kind of simple in construction, anti-backflow function are surely leaned on.
nullFor reaching above-mentioned purpose，The technical solution of the utility model is for providing a kind of backflow preventer device，It valve body including there is inner chamber、Activity is installed in the spool in body cavity，The intake tunnel connected with body cavity and exhalant canal it is provided with in described valve body，The inlet channel connected with body cavity it is additionally provided with on described valve body，Described spool includes valve block、It is located at the slide bar of described valve block side and is located at the outer end opening of described valve block opposite side、Sidewall offers the hollow sliding sleeve of the water hole run through，Described hollow sliding sleeve stretches into described intake tunnel the inwall matched in clearance with described intake tunnel，Described slide bar stretch into described inlet channel and and the inwall of described inlet channel between there is ebb interval，The water inlet sealing valve port that described valve block is provided with described intake tunnel end coordinates，During water inlet，The intake valve port that described valve block is provided with away from described water inlet valve port past described inlet channel end under the effect of hydraulic pressure moves and seals laminating with described intake valve port，It is additionally provided with one for the return springs that described spool is resetted.
Preferably, described return springs is stage clip, and the two ends of described stage clip are pushed up on valve interior wall and the described spool of pressure inlet channel side respectively.
Preferably, the endoporus of described hollow sliding sleeve and described water inlet valve port is suitable and matched in clearance therebetween.
Preferably, being additionally provided with guide part in described inlet channel, described slide bar guides with this guide part and is slidably matched.
Preferably, described valve body includes that dismountable valve gap, described inlet channel and described intake valve port are arranged on described valve gap, is communicated with the air inlet of described inlet channel and outside air outside described valve gap.
Further preferred, it is additionally provided with guide part in described inlet channel, described guide part is the fairlead being arranged in the inlet channel of described valve gap, slides in described slide bar inserts described fairlead and in described fairlead, and described fairlead sidewall offers the passage connected with described inlet channel.
Preferably, described intake tunnel and inlet channel are coaxially arranged.
Preferably, described valve block is respectively provided on two sides with and seals, with described water inlet valve port and intake valve port, the sealing gasket coordinated.
Preferably, the cross section of described slide bar is circle, ellipse, cross, I-shaped, annular or polygon.
In addition, this utility model additionally provides a kind of electromagnetic valve, it includes housing, water inlet, outlet, valve core of the electromagnetic valve and electromagnetic valve valve seat, also includes that the backflow preventer device described in any of the above-described item, described outlet are connected with the intake tunnel of described backflow preventer device.
The beneficial effects of the utility model are:
1, a kind of backflow preventer device of the present utility model, it is not when watering supplies water, the water inlet valve port of energy valve body, and open intake valve port simultaneously, can effectively prevent aqueous reflux, when watering cut off the water negative pressure occurs time, even if there is the reason such as foreign body or sealing gasket deformation and cause it to be in the state of not completely enclosing in water inlet valve port, due to now, intake valve port is opened, outside air can enter in valve body, blocking-up negative pressure is formed, make watering negative pressure the water in watering equipment will not be produced siphonage, can function well as the most equally and prevent the water in watering equipment from flowing back to watering, and valve block moves back and forth to match with water inlet valve port and intake valve port under the guide effect of slide bar and hollow sliding sleeve in valve pocket, valve plate movement is smooth and easy freely and steadily, simple in construction, anti-backflow function is surely leaned on.
2, the endoporus of described hollow sliding sleeve and described water inlet valve port is suitable and matched in clearance therebetween, and hollow sliding sleeve can realize guiding and coordinate, make valve core movement more steady, smooth and easy with described water inlet valve port.
3, being additionally provided with guide part in described inlet channel, described slide bar guides with this guide part and is slidably matched, and makes valve core movement more steady, smooth and easy.
4, described intake tunnel and inlet channel are coaxially arranged, and valve body structure can be made the compactest.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by of the present utility model, constitutes a part of the present utility model, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structure sectional view that backflow preventer device of the present utility model is in original state；
Fig. 2 is that backflow preventer device of the present utility model is in the structure sectional view into water state；
Fig. 3 is the structure sectional view that backflow preventer device of the present utility model is in air-suction state；
Fig. 4 is the spool three-dimensional structure diagram of backflow preventer device of the present utility model；
Wherein, accompanying drawing is designated:
1-valve body；12-intake tunnel；122-is intake valve port；14-exhalant canal；16-inlet channel；18-inner chamber；162-intake valve port；2-spool；22-valve block；24-slide bar；26-hollow sliding sleeve；262-water hole；The 264-collar；266-lattice framing；3-valve gap；32-air inlet；34-fairlead；342-passage；4-stage clip.
Detailed description of the invention
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer, clear, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
Refer to Fig. 1 and Fig. 4, a kind of backflow preventer device of this utility model one preferred embodiment, it is arranged on the water route between watering and watering equipment, for preventing the water in watering equipment from flowing back to watering by water route, watering is avoided to be contaminated, it includes the spool 2 having the valve body 1 of inner chamber 18, activity is installed in the inner chamber 18 of valve body 1, is provided with intake tunnel 12, exhalant canal 14 and inlet channel 16 that the inner chamber 18 with valve body 1 connects in valve body 1.Intake tunnel 12 is provided with into water valve port 122 near the end of inner chamber 18, and inlet channel 16 is provided with intake valve port 162 near the end of inner chamber 18.
Spool 2 includes valve block 22, the slide bar 24 being located at valve block 22 side and is located at the hollow sliding sleeve 26 of valve block 22 opposite side, this hollow sliding sleeve 26 outer end opening, sidewall offer the water hole 262 run through, and water hole 262 can connect intake tunnel 12 and exhalant canal 14 when valve block 22 is opened into water valve port 122.Hollow sliding sleeve 26 extends into aquaporin 12 the inwall matched in clearance with intake tunnel 12, and hollow sliding sleeve 26 not only can guide but also can be greatly reduced the resistance causing water inlet current to the slip of spool 2, thus avoid producing bigger hydraulic pressure pressure drop as far as possible.Slide bar 24 stretch into inlet channel 16 and and the inwall of inlet channel 16 between there is ebb interval.When not intaking, the water inlet valve port 122 that valve block 22 is provided with intake tunnel 12 end seals and coordinates, during water inlet, the intake valve port 162 that valve block 22 is provided with away from water inlet valve port 122 past inlet channel 16 end under the effect of hydraulic pressure moves and seals laminating with intake valve port 162, intake tunnel 12 and exhalant canal 14 is made to form a water stream channel closing, complete, water will not be revealed from intake valve port 162, and so, the current of intake tunnel 12 flow to exhalant canal 14 by water hole 262.
In addition, this utility model backflow preventer device is additionally provided with one for the return springs resetting spool 2, the return springs of the present embodiment is stage clip 4, the two ends of stage clip 4 are pushed up on valve body 1 inwall and the spool 2 of pressure inlet channel 16 side respectively, stage clip 4 pushes up pressure valve core 2 and valve block 22 is moved towards water inlet valve port 122 direction and keeps sealing laminating water intaking valve mouth 122, during water inlet, valve block 22 moves towards intake valve port 162 direction under hydraulic pressure effect and compression press spring 4 makes its elastic deformation.
In the present embodiment, hollow sliding sleeve 26 is made up of the collar 264 and a plurality of lattice framing 266 arranged along the collar 264 annular space being arranged on outer end, gap between each lattice framing 266 forms described water hole 262, and lattice framing 266 is fixed on the border of valve block 22 away from one end of the collar 264.Hollow sliding sleeve 26 is suitable with the endoporus of water inlet valve port 122 and matched in clearance therebetween, and the movement of hollow sliding sleeve 26 can be guided by water inlet valve port 122, so that the stable movement of spool 2, smooth and easy.
In the present embodiment, valve body 1 includes that dismountable valve gap 3, inlet channel 16 and intake valve port 162 are arranged on valve gap 3, is communicated with the air inlet 32 of inlet channel 16 and outside air outside valve gap 3, valve gap 3 and valve body 1 cover formation inner chamber 18, and valve gap 3 is provided with sealing ring with the joint of valve body 1.
In the present embodiment, slide bar 24 is solid cylinder structure, slide bar 24 guide effect of column structure is more preferable, simple in construction, certainly its shape is not limited, slide bar 24 can also be flat structure or cross section be ellipse, cross, I-shaped, annular or polygonized structure or other irregular structures of cross section etc., slide bar 24 can be solid construction can also be hollow-core construction.Being additionally provided with guide part in inlet channel 16, slide bar 24 guides with this guide part and is slidably matched.Concrete, this guide part is the fairlead 34 being arranged in the inlet channel 16 of valve gap 3, slide in slide bar 24 inserts fairlead 34 and in fairlead 34, fairlead 34 sidewall offers the passage 342 connected with inlet channel 16, when valve block 22 opens intake valve port 162, in outside air enters inlet channel 16 via the air inlet 32 on valve gap 3 and entered by the passage 342 on fairlead 34 in the inner chamber 18 of valve body 1.
In the present embodiment, it is preferred that intake tunnel 12 and inlet channel 16 are coaxially arranged, exhalant canal 14 and intake tunnel 12 and the perpendicular layout of inlet channel 16, so arrange and valve body 1 can be made simple and compact for structure.
In order to preferably realize sealing to water inlet valve port 122 and intake valve port 162, valve block 22 both sides can be respectively equipped with and seal, with intake valve port 122 and intake valve port 162, the sealing gasket coordinated.
Refer to Fig. 1, Fig. 1 is the structure sectional view that the backflow preventer device of the present embodiment is in original state, now, valve block 22 seals laminating water intaking valve mouth 122, and intake tunnel 12 is closed, simultaneously, valve block 22 is opened away from intake valve port 162, inlet channel 16, therefore, even if there is negative pressure in the intake tunnel 12 now connected with watering, the water in watering equipment also will not from exhalant canal 14 by siphon back in aquaporin 12.
Refer to Fig. 2, Fig. 2 is that the backflow preventer device of the present embodiment is in the structure sectional view into water state, now, the water W with certain pressure from watering collides valve block 22, make valve block 22 away from water inlet valve port 122, intake tunnel 12 is opened, simultaneously, valve block 22 moves to the position sealing laminating intake valve port 162, inlet channel 16 is closed, intake tunnel 12 and exhalant canal 14 form a communicating passage closing, complete, and the water in intake tunnel 12 can be flow in exhalant canal 14 by water hole 262, it is achieved the watering water supply to watering equipment.
Refer to Fig. 3, Fig. 3 is the structure sectional view that the backflow preventer device of the present embodiment is in air-suction state, now, valve block 22 laminating water inlet valve port 122, intake tunnel 12 is closed, simultaneously, valve block 22 is away from intake valve port 162, inlet channel 16 is opened, but owing to there being the reasons such as the sealing gasket on foreign body or valve block 22 deforms to cause the valve block 22 cannot normal sealed feed valve mouth 122 at water inlet valve port 122, there is negative pressure in intake tunnel 12, under this suction function, outside air A can enter in intake tunnel 12 in inlet channel 16 is inhaled into inner chamber 18 and by unsealed water inlet valve port 122 thus break negative pressure, negative pressure is stoped to be formed, and then prevent water in watering equipment from exhalant canal 14 by siphon back in aquaporin 12, realize anti-backflow function.
In addition, this utility model additionally provides a kind of electromagnetic valve (not shown), it includes housing, water inlet, outlet, valve core of the electromagnetic valve and electromagnetic valve valve seat, also includes above-mentioned backflow preventer device, and outlet is connected with the intake tunnel of backflow preventer device, the dependency structure of backflow preventer device and operation principle see above and describe, here repeating no more, such electromagnetic valve can control the break-make of current, has again the function preventing current from flowing backwards, simple in construction, practical.
Although specifically showing in conjunction with preferred embodiment and describing this utility model; but those skilled in the art should be understood that; in the spirit and scope of the present utility model limited without departing from appended claims; in the form and details this utility model is made a variety of changes, be protection domain of the present utility model.
Claims (10)
- null1. a backflow preventer device，Including the valve body with inner chamber、Activity is installed in the spool in body cavity，The intake tunnel connected with described body cavity and exhalant canal it is provided with in described valve body，It is characterized in that，The inlet channel connected with described body cavity it is additionally provided with on described valve body，Described spool includes valve block、It is located at the slide bar of described valve block side and is located at the outer end opening of described valve block opposite side、Sidewall offers the hollow sliding sleeve of the water hole run through，Described hollow sliding sleeve stretches into described intake tunnel the inwall matched in clearance with described intake tunnel，Described slide bar stretch into described inlet channel and and the inwall of described inlet channel between there is ebb interval，The water inlet sealing valve port that described valve block is provided with described intake tunnel end coordinates，During water inlet，The intake valve port that described valve block is provided with away from described water inlet valve port past described inlet channel end under the effect of hydraulic pressure moves and seals laminating with described intake valve port，It is additionally provided with one for the return springs that described spool is resetted.
- A kind of backflow preventer device the most according to claim 1, it is characterised in that described return springs is stage clip, and the two ends of described stage clip are pushed up on the valve interior wall and the described spool that are pressed in inlet channel side respectively.
- A kind of backflow preventer device the most according to claim 1, it is characterised in that described hollow sliding sleeve is suitable with the endoporus of described water inlet valve port and matched in clearance therebetween.
- A kind of backflow preventer device the most according to claim 1, it is characterised in that be additionally provided with guide part in described inlet channel, described slide bar guides with this guide part and is slidably matched.
- A kind of backflow preventer device the most according to claim 1, it is characterized in that, described valve body includes that dismountable valve gap, described inlet channel and described intake valve port are arranged on described valve gap, is communicated with the air inlet of described inlet channel and outside air outside described valve gap.
- A kind of backflow preventer device the most according to claim 5, it is characterized in that, it is additionally provided with guide part in described inlet channel, described guide part is the fairlead being arranged in the inlet channel of described valve gap, sliding in described slide bar inserts described fairlead and in described fairlead, described fairlead sidewall offers the passage connected with described inlet channel.
- A kind of backflow preventer device the most according to claim 1, it is characterised in that described intake tunnel and inlet channel are coaxially arranged.
- A kind of backflow preventer device the most according to claim 1, it is characterised in that described valve block is respectively provided on two sides with and seals, with described water inlet valve port and intake valve port, the sealing gasket coordinated.
- A kind of backflow preventer device the most according to claim 1, it is characterised in that the cross section of described slide bar is circle, ellipse, cross, I-shaped, annular or polygon.
- 10. an electromagnetic valve, including housing, water inlet, outlet, valve core of the electromagnetic valve and electromagnetic valve valve seat, it is characterized in that, also include that the backflow preventer device described in any one of claim 1 to 9, described outlet are connected with the intake tunnel of described backflow preventer device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620445478.XU CN205618745U (en) | 2016-05-17 | 2016-05-17 | Prevent flowing backwards valve gear and have its solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620445478.XU CN205618745U (en) | 2016-05-17 | 2016-05-17 | Prevent flowing backwards valve gear and have its solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205618745U true CN205618745U (en) | 2016-10-05 |
Family
ID=57023558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620445478.XU Active CN205618745U (en) | 2016-05-17 | 2016-05-17 | Prevent flowing backwards valve gear and have its solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205618745U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522326A (en) * | 2016-11-30 | 2017-03-22 | 厦门建霖工业有限公司 | Anti-siphon valve and anti-siphon closestool |
| CN107218400A (en) * | 2017-06-06 | 2017-09-29 | 浙江科欣实业有限公司 | A kind of flushing valve |
| CN108131473A (en) * | 2018-01-31 | 2018-06-08 | 浙江神太太阳能股份有限公司 | The check valve of decompression function built in a kind of band |
| CN109307089A (en) * | 2018-10-22 | 2019-02-05 | 合肥通用机械研究院有限公司 | High frequency opens check-valves fastly |
| CN111455628A (en) * | 2019-01-18 | 2020-07-28 | 青岛海尔滚筒洗衣机有限公司 | Automatic additive feeding device and washing machine |
-
2016
- 2016-05-17 CN CN201620445478.XU patent/CN205618745U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522326A (en) * | 2016-11-30 | 2017-03-22 | 厦门建霖工业有限公司 | Anti-siphon valve and anti-siphon closestool |
| CN107218400A (en) * | 2017-06-06 | 2017-09-29 | 浙江科欣实业有限公司 | A kind of flushing valve |
| CN108131473A (en) * | 2018-01-31 | 2018-06-08 | 浙江神太太阳能股份有限公司 | The check valve of decompression function built in a kind of band |
| CN109307089A (en) * | 2018-10-22 | 2019-02-05 | 合肥通用机械研究院有限公司 | High frequency opens check-valves fastly |
| CN111455628A (en) * | 2019-01-18 | 2020-07-28 | 青岛海尔滚筒洗衣机有限公司 | Automatic additive feeding device and washing machine |
| CN111455628B (en) * | 2019-01-18 | 2022-04-05 | 青岛海尔洗涤电器有限公司 | Automatic additive feeding device and washing machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205618745U (en) | Prevent flowing backwards valve gear and have its solenoid valve | |
| WO2013043911A3 (en) | Three-way flow sub for continuous circulation | |
| WO2008008465A3 (en) | Valve manifold assembly | |
| DE602007003042D1 (en) | Beverage dispenser valve | |
| MX347243B (en) | Flow stop valve. | |
| CN204704452U (en) | Stop valve | |
| GB2489630A (en) | Gas lift barrier valve | |
| CN202012642U (en) | Novel backflow preventer | |
| WO2017024792A1 (en) | Dual volume flow rate switching device | |
| CN103696470B (en) | Three-cavity self-closing time-delay flushing valve core | |
| CN206347148U (en) | Switch valve element, tap and bidet | |
| WO2018045963A1 (en) | Anti-siphon water intake valve and toilet | |
| MX342957B (en) | Flow stop valve. | |
| CN105370924B (en) | Side valve type pressure reduction type backflow preventer | |
| WO2016180252A1 (en) | Structurally improved one-way valve | |
| CN103669521B (en) | Automatic water pressure flushing valve | |
| CN205715844U (en) | A kind of making-up air device of backflow preventer | |
| CN205462804U (en) | Drip proof shower nozzle | |
| CN205857324U (en) | A kind of electromagnetism anti-syphon flushing water valve | |
| CN207999524U (en) | A kind of vacuum brake | |
| CN203546855U (en) | Three-cavity self-closing type delayed flushing valve element | |
| CN206655289U (en) | A kind of water intaking valve of the water shutoff of direction downstream | |
| CN205446803U (en) | Switching structure in water route | |
| CN205136688U (en) | Low resistance backflow preventer | |
| CN105457774A (en) | Drop-proof shower head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |