CN208778773U - A kind of check-valves that can be flowed back with liquidproof - Google Patents
A kind of check-valves that can be flowed back with liquidproof Download PDFInfo
- Publication number
- CN208778773U CN208778773U CN201821614274.XU CN201821614274U CN208778773U CN 208778773 U CN208778773 U CN 208778773U CN 201821614274 U CN201821614274 U CN 201821614274U CN 208778773 U CN208778773 U CN 208778773U
- Authority
- CN
- China
- Prior art keywords
- backflow preventer
- valves
- check
- welded
- liquidproof
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Check Valves (AREA)
Abstract
The utility model provides a kind of check-valves that can be flowed back with liquidproof, including water inlet pipe, curved water pipe and drainpipe, water inlet pipe is welded in curved water pipe one end, drainpipe is welded in the other end of curved water pipe, water inlet pipe includes the first backflow preventer, reverse flow baffle, sealing block and torsional spring, and water inlet pipe inner end is welded with the first backflow preventer, and the first backflow preventer and water inlet pipe junction lower end are fixed with sealing block, first backflow preventer inner upper end is welded with torsional spring, and reverse flow baffle is welded in torsional spring.By the way that the first backflow preventer and the second backflow preventer are arranged in the present invention, check-valves is allowed to carry out double protection to withdrawing fluid, so that in the case where the damage of the second backflow preventer can not work, first backflow preventer can also carry out non-return to the liquid of reflux, so that check-valves has preferable practicability, production and use suitable for the check-valves that can be flowed back with liquidproof, have good development prospect.
Description
Technical field
The utility model relates to check-valves technical field, specially a kind of anti-return check-valves.
Background technique
In fluid line, power often is provided for the fluid flowing in pipeline by power source, makes fluid in a certain direction
Flowing.When power source stops working or pipeline unusual condition occurs, the phenomenon that fluid in pipeline often will appear refluence, make
To influence the operation of production safety accident can occur for the pollution of forming apparatus or the damage of power source device when serious, threaten life
The safety of life and property.
Therefore it is needed in fluid circuit in the place installation anti-backflow device often flow backwards, come for avoiding falling for fluid
Stream.
There are the periodical and document of many research check-valves in the prior art, wherein a Patent No.
201320228312.9 utility application, this application provides downflow system liquidproof counterflow unit, but this kind of flows down
During use, although can be realized the anti-backflow function to liquid, structure is simple for formula liquidproof counterflow unit, needs
It wants larger fluid pressure to be washed open, when fluid flow is smaller, is easy blocking pipeline, will lead to liquid and be difficult to flow in pipeline
It is dynamic, and the device only has anti-backflow at single, without multiple back flow protection, cannot achieve liquid anti-backflow once damage, therefore,
It needs further to be studied on existing anti-return check-valves, a kind of new anti-return check-valves is provided.
Utility model content
The existing anti-return check valve structure that is intended to solve of the utility model simply cannot achieve multiple anti-backflow guarantor
It the technical issues of shield, provides a kind of check-valves that can be flowed back with liquidproof, passes through the first backflow preventer of setting and the in the device
Two backflow preventer components have been more effectively prevented from the reflux of liquid by the double protection that two components are formed, can be improved
Liquidproof reflowing result has wide applicability, to solve existing anti-return check-valves mentioned above in the background art
Structure simply cannot achieve the problem of multiple anti-backflow protection.
To achieve the above object, the utility model provides the following technical solutions: a kind of check-valves that can be flowed back with liquidproof,
Including water inlet pipe, curved water pipe and drainpipe, water inlet pipe is welded in curved water pipe one end, and drainpipe is welded in the other end of curved water pipe；
Water inlet pipe includes the first backflow preventer, reverse flow baffle, sealing block and torsional spring, and water inlet pipe inner end is welded with first
Backflow preventer, the first backflow preventer and water inlet pipe junction lower end are fixed with sealing block, the welding of the first backflow preventer inner upper end
There is torsional spring, reverse flow baffle is welded in torsional spring；
Curved water pipe includes valve and water chamber, and through there is valve, curved water pipe, which is internally provided with, to be deposited for curved water pipe bending place welding
Water cavity；
Drainpipe lateral ends are welded with the second backflow preventer.
As a further solution of the present invention: reverse flow baffle and the first backflow preventer vertical are connect in 90 °.
As a further solution of the present invention: sealing block is NBR nitrile rubber, SIL silicon rubber, VITON fluorine element rubber
Any one in glue, FLS fluorine silicone rubber.
It as a further solution of the present invention: curved water pipe is the curved water pipe of " u "-shaped, and is hollow form inside curved water pipe.
As a further solution of the present invention: torsional spring and reverse flow baffle expansible angle are 0-50 °.
As a further solution of the present invention: torsional spring is stainless steel torsional spring.
The utility model has the following beneficial effects:
(1) by the way that the first backflow preventer and the second backflow preventer are arranged in the present invention, allow check-valves right
Withdrawing fluid carries out double protection, so that the first backflow preventer may be used also in the case where the damage of the second backflow preventer can not work
To carry out non-return to the liquid of reflux, so that check-valves has preferable practicability.
(2) the advantages of check-valves that this kind can be flowed back with liquidproof, is, is provided with sealing block, passes through sealing block and reflux
Baffle fit closely so that anti-backflow valve port have leakproofness, completely cut off flow backwards liquid reflux, will flow backwards liquid get lodged in it is anti-
It flows backwards outside valve port.
(3) this kind can be provided with water chamber with the check-valves that liquidproof flows back, and water chamber sends as an envoy in liquid flow and has part
Liquid resides in wherein, and deposits together inside liquid reflux Shi Huiyu water chamber when having, and passes through valve opening next time and liquid
Drainpipe is flowed out together.
To sum up, the check-valves of liquidproof reflux can be improved liquidproof reflowing result, there is very high promotional value.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the schematic diagram of the section structure of the utility model.
In Fig. 1-2: 1- valve, 2- water inlet pipe, the first backflow preventer of 3-, the curved water pipe of 4-, the second backflow preventer of 5-, 6- draining
Pipe, 7- reverse flow baffle, 8- sealing block, 9- water chamber, 10- torsional spring.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Valve 1, water inlet pipe 2 used in the utility model, curved water pipe 4, drainpipe 6, torsional spring 10 can pass through market
Purchase or private customized gained.
Please refer to Fig. 1~2, in the utility model embodiment, a kind of check-valves that can be flowed back with liquidproof, including water inlet pipe
2, curved water pipe 4 and drainpipe 6, water inlet pipe 2 are welded in curved 4 one end of water pipe, and drainpipe 6 is welded in the other end of curved water pipe 4；
Water inlet pipe 2 includes the first backflow preventer 3, reverse flow baffle 7, sealing block 8 and torsional spring 10, and the welding of 2 inner end of water inlet pipe is solid
Surely have the first backflow preventer 3, the first backflow preventer 3 is fixed with sealing block 8 with 2 junction lower end of water inlet pipe, by sealing block 8 with
Reverse flow baffle 7 fits closely so that anti-backflow valve port has leakproofness, and 3 inner upper end of the first backflow preventer is welded with torsional spring
10, the suit of reverse flow baffle 7 is welded in torsional spring 10；
Curved water pipe 4 includes valve 1 and water chamber 9, and curved 4 bending place of water pipe welding is set inside curved water pipe 4 through there is valve 1
It is equipped with water chamber 9, water chamber 9 sends as an envoy in liquid flow and has partially liq and reside in wherein, and when there is liquid reflux Shi Huiyu to deposit
It is deposited inside water cavity 9 together, and drainpipe 6 is flowed out together with liquid by valve opening next time；
6 lateral ends of drainpipe are welded with the second backflow preventer 5, by the way that the first backflow preventer is arranged in the present invention
3 and second backflow preventer 5, allow check-valves to carry out double protection to withdrawing fluid.
When can be with the check-valves of liquidproof reflux using the utility model one kind, firstly, when liquid enters from water inlet pipe
After flow through and be discharged by drain valve 6 after the first backflow preventer 3, curved water pipe 4, the second backflow preventer 5, there is liquid when flow is excessive
When reflux, the reverse flow baffle 7 that the inside of the second backflow preventer 5 is welded to connect with torsional spring 10, by being bonded with sealing block 8 so that returning
Flowing liquid can not be flow backwards, if withdrawing fluid the pressure more conference of reverse flow baffle 7 is made it is even closer with being bonded for sealing block 8,
When the damage of the second backflow preventer 5 can not carry out preventing from flowing backwards work, withdrawing fluid can be stored in curved 4 inside water chamber 9 of water pipe,
Store it is a certain amount of after can be discharged with drainpipe 6, and the first backflow preventer 3 is identical with 5 principle function of the second backflow preventer, to time
Flowing liquid equally has anti-backflow effect.
The above are merely preferred embodiments of the present invention, it is noted that for those skilled in the art,
Without departing from the concept of the premise utility, several modifications and improvements can also be made, these also should be considered as practical
Novel protection scope, these all will not influence the effect and patent practicability of the utility model implementation.
Claims (6)
1. the check-valves that one kind can be flowed back with liquidproof, including water inlet pipe (2), curved water pipe (4) and drainpipe (6), water inlet pipe (2)
It is welded in curved water pipe (4) one end, drainpipe (6) is welded in the other end of curved water pipe (4)；
It is characterized by: water inlet pipe (2) includes the first backflow preventer (3), reverse flow baffle (7), sealing block (8) and torsional spring (10),
Water inlet pipe (2) inner end is welded with the first backflow preventer (3), and the first backflow preventer (3) and water inlet pipe (2) junction lower end are solid
Surely have sealing block (8), the first backflow preventer (3) inner upper end is welded with torsional spring (10), and reverse flow baffle (7) is welded in torsional spring
(10)；
Curved water pipe (4) includes valve (1) and water chamber (9), and curved water pipe (4) bending place welding, which runs through, valve (1), curved water pipe
(4) water chamber (9) are internally provided with；
Drainpipe (6) lateral ends are welded with the second backflow preventer (5).
2. the check-valves that one kind according to claim 1 can be flowed back with liquidproof, it is characterised in that: the reverse flow baffle
(7) it vertical is connect with the first backflow preventer (3) in 90 °.
3. the check-valves that one kind according to claim 1 can be flowed back with liquidproof, it is characterised in that: the sealing block (8)
For any one in NBR nitrile rubber, SIL silicon rubber, VITON fluorine element rubber, FLS fluorine silicone rubber.
4. the check-valves that one kind according to claim 1 can be flowed back with liquidproof, it is characterised in that: the curved water pipe (4)
It for the curved water pipe of " u "-shaped (4), and is hollow form inside curved water pipe (4).
5. one kind according to claim 1 can with liquidproof flow back check-valves, it is characterised in that: the torsional spring (10) with
Reverse flow baffle (7) expansible angle is 0-50 °.
6. the check-valves that one kind according to claim 5 can be flowed back with liquidproof, it is characterised in that: the torsional spring (10) is
Stainless steel torsional spring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821614274.XU CN208778773U (en) | 2018-09-30 | 2018-09-30 | A kind of check-valves that can be flowed back with liquidproof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821614274.XU CN208778773U (en) | 2018-09-30 | 2018-09-30 | A kind of check-valves that can be flowed back with liquidproof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208778773U true CN208778773U (en) | 2019-04-23 |
Family
ID=66161542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821614274.XU Expired - Fee Related CN208778773U (en) | 2018-09-30 | 2018-09-30 | A kind of check-valves that can be flowed back with liquidproof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208778773U (en) |
-
2018
- 2018-09-30 CN CN201821614274.XU patent/CN208778773U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190423 Termination date: 20210930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |