CN205618744U - Sealed check valve - Google Patents
Sealed check valve Download PDFInfo
- Publication number
- CN205618744U CN205618744U CN201620199135.XU CN201620199135U CN205618744U CN 205618744 U CN205618744 U CN 205618744U CN 201620199135 U CN201620199135 U CN 201620199135U CN 205618744 U CN205618744 U CN 205618744U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- spring
- cylinder
- cylindrical groove
- 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 sealed check valve, relates to the sealing technique of check valve, and it includes two valve bodies, the valve clack, the valve rod, the spring, the valve body inner wall that links to each other with the inlet tube has cylindrical flange, the valve body that links to each other with the outlet pipe leans on fixed the being provided with cylinder of proximal end portion department, has cylindrical groove in the middle of the cylinder, and the cylinder passes through the pole with cylindrical groove to be connected, and the centre is porose, and the rivers clearing hole flows to out the water end (W. E. ), the valve rod is the T shape, and the spring has been cup jointed to the centre, and one end sliding connections is to the cylindrical groove in, and the other end is connected to the valve clack. Through having cup jointed the spring the valve rod in the middle of, an effort is left exerted to the valve clack to the spring for even the reverse flow volume is very little also to have fine sealed effect, it is can not be backward fine sealed not enough to have compensatied general check valve.
Description
Technical field
This utility model relates to valve body technical field, is specifically related to the Sealing Technology of a kind of check-valves.
Background technology
Check-valves refers to rely on medium itself to flow and automatic open and close flap, is used for preventing medium from flowing backwards
Valve, also known as non-return valve, check valve, reflux valve and counterbalance valve.Check-valves belongs to a kind of automatic valve,
Its Main Function is to prevent medium from flowing backwards, prevent pump and drive motor reversion, and the letting out of vessel media
Put.Check-valves can be additionally used in the aid system offer supply that may be raised above system pressure to pressure therein
Pipeline on.Check-valves can be divided mainly into swing check valve (rotating according to center of gravity) and lift check valve
(moving along axis).The effect of check-valves is only to allow medium to flow to a direction, and stops anti-
Flow in direction.Usual this valve is work automatically, under the fluid pressure effect of a direction flowing,
Flap is opened；During the flowing of fluid opposite direction, the gravity closing flap of fluid pressure and flap act on valve
Seat, thus cut off flowing.But check-valves in the market there is a problem that when fluid occurs
Opposed flow, flap generally can not act on valve seat and form preferably sealing, and this is for sealing requirements
Higher occasion can not meet requirement.
Utility model content
Technical problem to be solved in the utility model is to overcome existing technological deficiency, it is provided that Yi Zhongmi
Envelope check-valves.
Technical problem to be solved in the utility model uses following technical scheme to realize:
A kind of seal check-valves, including two valve bodies, flap, valve rod, spring, a described wherein valve body with
Water inlet pipe is connected, and another valve body is connected with outlet pipe, and junction all adds sealing ring.Two valve bodies
Being closely joined together, the valve interior wall that is connected with water inlet pipe has cylindrical flange, and be connected valve body with outlet pipe
It is fixedly installed cylinder near end, in the middle of cylinder, has cylindrical groove, cylinder and cylindrical groove
Being connected by bar, middle porose, current flow to water side by hole.Described valve rod is T-shape, middle
Being socketed with spring, one end is slidably connected in cylindrical groove, and the other end is connected to flap, when current side
To during from water inlet pipe to outlet pipe, described flap passes through valve body away from the flange on described valve body, current,
When water (flow) direction is from outlet pipe to water inlet pipe, described flap covers the flange on valve body, and current are cut off
Valve body can not be passed through.
When water inlet pipe does not has current, described flap is no longer influenced by active force to the right, and spring can be to flap
Applying one active force to the left, even if in the case of reverse flow amount is the least, valve body also can be had very by flap
Good sealing effectiveness.
Further, the valve body flange that is connected with water inlet pipe adds sealing filler ring, when flap covers flange,
Better seal effect can be played.
The valve interior wall that two valve body junctions are connected with outlet pipe is set to curved surface and can reduce fluid at stream
The resistance run into time dynamic.
The beneficial effects of the utility model are: by being connected to spring in valve rod intermediate sleeve, flap is executed by spring
Add one active force to the left so that even if reverse flow amount is the least also good sealing effectiveness, compensate for one
As the deficiency that can not the most well seal of check-valves.
Accompanying drawing explanation
Fig. 1 is front cross-sectional view of the present utility model.
Fig. 2 is valve body 2 mediate cylindrical 12 front elevation of the present utility model.
Detailed description of the invention
For the technological means making this utility model realize, creation characteristic, reach purpose and be prone to bright with effect
White understanding, below in conjunction with being specifically illustrating, is expanded on further this utility model.
Check-valves is sealed as it is shown in figure 1, a kind of, including valve body 1,2, flap 4, valve rod 8, spring 7,
Valve body 1 is connected with water inlet pipe 10, and valve body 2 is connected with outlet pipe 11, and junction all adds sealing ring 5.
Valve body 1,2 is closely joined together, and valve body 1 inwall has cylindrical flange 6, valve body 2 to fix near end
It is provided with in the middle of cylinder 12, cylinder 12 and has cylindrical groove 3, cylinder 12 and cylindrical groove 3 to pass through bar
13 connect, and middle porose 14, current flow to water side by hole 14.Valve rod 8 is T-shape, intermediate sleeve
Being connected to spring 7, one end is slidably connected in cylinder shape groove 3, and the other end is connected to flap 4, works as current
Direction from water inlet pipe 10 to outlet pipe 11 time, flap 4 passes through valve body 1,2 away from valve body 1 flange 6, current,
When water (flow) direction from outlet pipe 11 to water inlet pipe 10 time, flap 4 covers valve body 1 flange 6, and current are cut off not
Valve body can be passed through.
When water inlet pipe 10 does not has current, flap 4 is no longer influenced by active force to the right, and spring 7 can be to flap 4
Applying one active force to the left, even if in the case of reverse flow amount is the least, valve body also can be had very by flap
Good sealing effectiveness.
Further, valve body 1 flange 6 adds sealing filler ring 9, when flap 4 covers flange 6, can play
Better seal effect.
Valve body 2 inwall that two valve body 1,2 junctions are connected with outlet pipe 11 is set to curved surface 15 can reduce
The resistance that fluid is run into when flowing.
Of the present utility model ultimate principle and principal character and of the present utility model excellent have more than been shown and described
Point.Skilled person will appreciate that of the industry, this utility model is not restricted to the described embodiments, above-mentioned
Principle of the present utility model is simply described, without departing from this utility model described in embodiment and description
On the premise of spirit and scope, this utility model also has various changes and modifications, these changes and improvements
In the range of both falling within claimed this utility model.This utility model claims scope by appended power
Profit claim and equivalent thereof define.
Claims (3)
1. a sealing check-valves, including two valve bodies, flap, valve rod, spring, a described wherein valve body
Being connected with water inlet pipe, another valve body described is connected with outlet pipe, and junction all adds sealing ring,
Described two valve bodies are closely joined together, it is characterised in that: the described valve interior wall that is connected with water inlet pipe has circle
Cylindrical lip, the described valve body that is connected with outlet pipe is fixedly installed cylinder near end, in cylinder
Between have cylindrical groove, cylinder to be connected by bar with cylindrical groove, middle porose, current are flowed to by hole
Water side, described valve rod is T shape, and intermediate sleeve is connected to spring, and one end is slidably connected in cylindrical groove,
The other end is connected to flap.
The most according to claim 1 a kind of seal check-valves, it is characterised in that: described with water inlet pipe phase
Even add sealing filler ring in valve body flange.
A kind of sealing check-valves the most according to claim 1 and 2, it is characterised in that: by described two valves
The valve interior wall that body junction is connected with outlet pipe is set to curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620199135.XU CN205618744U (en) | 2016-03-15 | 2016-03-15 | Sealed check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620199135.XU CN205618744U (en) | 2016-03-15 | 2016-03-15 | Sealed check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205618744U true CN205618744U (en) | 2016-10-05 |
Family
ID=57031536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620199135.XU Expired - Fee Related CN205618744U (en) | 2016-03-15 | 2016-03-15 | Sealed check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205618744U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927747A (en) * | 2020-08-07 | 2020-11-13 | 台州市日达泵业有限公司 | Water pump pressure device |
| CN112128437A (en) * | 2020-09-15 | 2020-12-25 | 湖南常德牌水表制造有限公司 | External backflow prevention mechanism for high-fall installation environment water meter |
-
2016
- 2016-03-15 CN CN201620199135.XU patent/CN205618744U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927747A (en) * | 2020-08-07 | 2020-11-13 | 台州市日达泵业有限公司 | Water pump pressure device |
| CN112128437A (en) * | 2020-09-15 | 2020-12-25 | 湖南常德牌水表制造有限公司 | External backflow prevention mechanism for high-fall installation environment water meter |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20180315 |