CN209294486U - A kind of shut-off valve having check function - Google Patents
A kind of shut-off valve having check function Download PDFInfo
- Publication number
- CN209294486U CN209294486U CN201822211526.0U CN201822211526U CN209294486U CN 209294486 U CN209294486 U CN 209294486U CN 201822211526 U CN201822211526 U CN 201822211526U CN 209294486 U CN209294486 U CN 209294486U
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- CN
- China
- Prior art keywords
- valve
- shut
- flap
- rod
- valve rod
- 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 shut-off valve for having check function, belong to valve technology field, including valve body, the lower end of valve body is provided with the port A, one end of valve body is provided with the port B, valve body is internally provided with flap, and valve rod is provided with above flap, and the two sides bottom end of flap opens up fluted, one end of valve rod is provided with the double-deck valve deck, activity is fixedly connected with handwheel, is connected with valve stem nut at the upper side of valve rod through there is valve rod screw in valve deck above valve rod.This kind has the shut-off valve of check function, and stable structure makes this screw down nonreturn valve be provided simultaneously with the function of two kinds of valves, not only can replace shut-off valve use, but also can replace check-valves use by the way that the setting of valve rod and valve deck is arranged.
Description
Technical field
The utility model relates to valve technology field, specifically a kind of shut-off valve.
Background technique
Check-valves is a kind of essential valve in pipeline transmission, and shut-off valve is also that the very extensive one kind of purposes is cut
Disconnected valve, is usually equipped with a stop valve at unit fixed on water pump suction end, is equipped with a stop valve and a check-valves in pump outlet.
For this three deck valves door, the valve that different design engineer selects is also different, but they are in the effect of pipeline
As really, for the stop valve of water pump entrance end primarily to solution overhauls water pump, check-valves is primarily used to protection water pump,
An existing water pump three deck valve doors of necessary mating setting, and must in succession and fill other works an of check-valves and a stop valve
Condition, therefore, for this status, there is an urgent need to develop a kind of shut-off valves for having check function, to overcome in currently practical application
Deficiency.
Summary of the invention
The purpose of this utility model is to provide a kind of shut-off valves for having check function, improve the deficiencies in the prior art, make
This screw down nonreturn valve is provided simultaneously with the function of two kinds of valves, not only can replace shut-off valve use, but also can replace check-valves use.
The embodiments of the present invention are achieved in that
A kind of shut-off valve having check function, including valve body, the lower end of valve body are provided with the port A, one end setting of valve body
There is the port B, valve body is internally provided with flap, and valve rod is provided with above flap, and the two sides bottom end of flap opens up fluted, valve
One end of bar is provided with the double-deck valve deck, and activity is fixedly connected with handwheel, valve rod through there is valve rod screw in valve deck above valve rod
Upper side be connected with valve stem nut.
It preferably, is hollow structure among the lower half portion of the valve rod, and the guide rod clearance fit with flap.
Preferably, it is provided with guide rod above the flap, and is higher by a part of height in a circular table shape at the top of guide rod
Degree.
Preferably, the top half of the valve rod is set as trapezoidal thread, and the top half of valve rod is matched with valve stem nut to be arranged
It sets, is rotated and connected by handwheel.
Preferably, the groove is trapezoidal, and is internally provided with sealing ring, and sealing ring is the sealing ring of rubber material.
Preferably, the port A and the port B are penetrated through by flap connects.
The utility model provides a kind of shut-off valve for having check function, has the advantages that
(1) the utility model provides a kind of shut-off valve for having check function, by the way that the setting of valve rod and valve deck is arranged, makes
This screw down nonreturn valve is provided simultaneously with the function of two kinds of valves, not only can replace shut-off valve use, but also can replace check-valves use.
(2) the utility model has the advantage of be set as trapezoidal thread by the top half of valve rod and formed with valve stem nut
Driving, rotation hand wheel make valve rod move up and down, by being improved on conventional shut-off valve, a guide rod, valve rod are set on flap
Lower end be it is hollow, flap can be moved up and down under valve opening state, the setting of the port A and the port B reaches to this section
Only check-valves is provided simultaneously with the function of two kinds of valves, not only can replace shut-off valve use, but also can replace check-valves use.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is that the medium of the utility model flows into structural schematic diagram from the end A.
Fig. 3 is that the medium of the utility model flows into structural schematic diagram from the end B.
Fig. 4 is enlarged structure schematic diagram at Figure 1A of the utility model.
In figure: 1- valve body；2- flap；3- valve rod；4- valve deck；5- valve stem nut；6- handwheel；The port 7-B；The port 8-A；9-
Valve rod screw；10- groove.
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 body 1, valve deck 4 and handwheel 6 in the utility model, which can be bought or customize from market, to be obtained, and concrete model is this
The conventional technical means in field, is no longer repeated.
Embodiment:
Please refer to Fig. 1 to 4, in the utility model embodiment, a kind of shut-off valve having check function, including 1- valve body；2-
Flap；3- valve rod；4- valve deck；5- valve stem nut；6- handwheel；The port 7-B；The port 8-A；9- valve rod screw；10- groove, valve body 1
Lower end be provided with the port A 8, one end of valve body 1 is provided with the port B 7, the port A 8 and the port B 7 and passes through the perforation connection of flap 2, valve
Body 1 is internally provided with flap 2, and the top of flap 2 is provided with guide rod, and is higher by the top of guide rod a part of in a circular table shape
Highly, by the setting port the A 8 and port B 7, can replace shut-off valve use, also can replace check-valves use, flap 2 it is upper
Side is provided with valve rod 3, and the two sides bottom end of flap 2 opens up fluted 10, and groove 10 is trapezoidal, and is internally provided with sealing ring, and
Sealing ring is the sealing ring of rubber material, is sealed by trapezoidal groove 10 to valve, one end of valve rod 3 is provided with bilayer
Valve deck 4, activity is through there is valve rod screw 9 in valve deck 4, and the top of valve rod 3 is fixedly connected with handwheel 6, and the upper side of valve rod 3 is living
Dynamic to be connected with valve stem nut 5, the top half and the mating setting of valve stem nut 5 of valve rod 3 are rotated by handwheel 6 and are connected, pass through valve
The top half of bar 3 is set as trapezoidal thread and valve stem nut 5 is formed and driven, and rotation hand wheel 6 makes valve rod move up and down, valve rod 3
Top half is set as trapezoidal thread, is hollow structure among the lower half portion of valve rod 3, and the guide rod clearance fit with flap 2,
By being improved on conventional shut-off valve, set a guide rod on flap 2,3 lower end of valve rod be it is hollow, allow flap 2 in valve
It can move up and down under open state, reach the function of being provided simultaneously with two kinds of valves to this screw down nonreturn valve.
Working principle passes through firstly, the top half design trapezoidal thread and valve stem nut 5 of valve rod 3 cooperatively form driving
The handwheel 6 of 3 top of rotary valve rod, can make valve rod 3 move up and down under the cooperation of valve stem nut 5, so that valve completion be made to open
The movement closed, valve are in close state, and no matter medium flows into valve or flow through valve from the port B 7 from the port A 8 all cannot
Passing through, valve is in the open state, and medium flows into valve by the port A 8, and it pushes flap 2 to rise, is flowed out by the port B 7, if there is
Particularity condition occurs and has medium refluence when flowing into valve by the port B 7, and medium will drive flap and move downwardly together and allow valve
It closes.
To sum up, whole device stable structure makes this screw down nonreturn valve be provided simultaneously with the function of two kinds of valves, both can replace
Shut-off valve uses, and can replace check-valves use.
Claims (6)
1. a kind of shut-off valve for having check function, including valve body (1), which is characterized in that the lower end of valve body (1) is provided with the port A
(8), one end of valve body (1) is provided with the port B (7), and valve body (1) is internally provided with flap (2), the top setting of flap (2)
Have valve rod (3), the two sides bottom end of flap (2) opens up fluted (10), and one end of valve rod (3) is provided with the double-deck valve deck (4), valve deck
(4) activity is fixedly connected with handwheel (6) through having valve rod screw (9) above valve rod (3) in, and the upper side of valve rod (3) is living
It is dynamic to be connected with valve stem nut (5).
2. the shut-off valve according to claim 1 for having check function, which is characterized in that the lower half portion of the valve rod (3)
Centre is hollow structure, and the guide rod clearance fit with flap (2).
3. the shut-off valve according to claim 1 for having check function, which is characterized in that the top of the flap (2) is arranged
There is guide rod, and is higher by a part of height in a circular table shape at the top of guide rod.
4. the shut-off valve according to claim 1 for having check function, which is characterized in that the top half of the valve rod (3)
It is set as trapezoidal thread, the top half and valve stem nut (5) mating setting of valve rod (3) are rotated by handwheel (6) and connected.
5. the shut-off valve according to claim 1 for having check function, which is characterized in that the groove (10) is trapezoidal, and
It is internally provided with sealing ring, and sealing ring is the sealing ring of rubber material.
6. the shut-off valve according to claim 1 for having check function, which is characterized in that the port A (8) and the port B (7)
It is penetrated through and is connected by flap (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822211526.0U CN209294486U (en) | 2018-12-27 | 2018-12-27 | A kind of shut-off valve having check function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822211526.0U CN209294486U (en) | 2018-12-27 | 2018-12-27 | A kind of shut-off valve having check function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209294486U true CN209294486U (en) | 2019-08-23 |
Family
ID=67649119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822211526.0U Expired - Fee Related CN209294486U (en) | 2018-12-27 | 2018-12-27 | A kind of shut-off valve having check function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209294486U (en) |
-
2018
- 2018-12-27 CN CN201822211526.0U patent/CN209294486U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Stop valve with non-return function Effective date of registration: 20191128 Granted publication date: 20190823 Pledgee: Bank of China Limited by Share Ltd. Hohhot Yuquan branch Pledgor: HUFA TECHNOLOGY HOLDINGS Ltd. Registration number: Y2019150000020 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210918 Granted publication date: 20190823 Pledgee: Bank of China Limited by Share Ltd. Hohhot Yuquan branch Pledgor: HUFA TECHNOLOGY HOLDINGS Ltd. Registration number: Y2019150000020 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190823 Termination date: 20211227 |