CN205745470U - A kind of check-valves of preventing water leakage - Google Patents
A kind of check-valves of preventing water leakage Download PDFInfo
- Publication number
- CN205745470U CN205745470U CN201620462857.XU CN201620462857U CN205745470U CN 205745470 U CN205745470 U CN 205745470U CN 201620462857 U CN201620462857 U CN 201620462857U CN 205745470 U CN205745470 U CN 205745470U
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- Prior art keywords
- valve seat
- flap
- check
- valves
- valve body
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Abstract
This utility model provides the check-valves of a kind of preventing water leakage, including valve body and be installed on the valve gap at valve body upper opening, intake channel and exit passageway is offered in described valve body, in the side of described intake channel, valve seat is installed, on described valve seat can folding be sealed and installed with flap, and in described valve body, it is positioned at the position on valve seat top by the rotating rocking bar that is provided with of rotating shaft, the free end of described rocking bar is connected with flap, annular protrusion it is respectively arranged at two ends with up and down relative to valve seat side at described flap, described valve seat then offers the annular lower concave part matched with described annular protrusion, and be also connected with being fixed with a permanent magnet on the end of described rocking bar free end.Use curved surface to connect between flap and valve seat in this utility model, better seal effect can be played, and the sealing effectiveness between flap and valve seat can be strengthened further, so that the use time of check-valves is longer by the magnetic adsorbability between permanent magnet and valve seat.
Description
Technical field
This utility model relates to fire-fighting equipment technical field, especially relates to the check-valves of a kind of preventing water leakage.
Background technology
Check-valves, also known as check (non-return) valve, check valve or non-return valve, refers to rely on medium itself to flow and automatic open and close flap,
Being used for preventing the valve that medium flows backwards, it acts on the function check-valves being to prevent medium directed flow in pipeline and will not flow backwards
Belong to automatic valve class, be mainly used on the pipeline of medium one-way flow, only allow medium to flow to a direction, to prevent
Accident.
In existing check-valves, general structure is to be embedded on flap by soft seal circle, then flap is fixed on rocking bar
Upper and valve seat constitutes movable sealing.But, the check-valves of prior art after long-term use, due to constantly washing away of current, flap
Good sealing effectiveness can not be formed with seal gasket when closed, be easily caused sealing effectiveness and be deteriorated and pressure release, long-time
Keep sealing effectiveness, prevent pressure release, rubber cushion must and flap between reach close contact, just can make the use time of check-valves more
It is long, so that it maintains good sealing effectiveness.
Utility model content
Therefore, in order to solve the problem that prior art exists, this utility model provides the check-valves of a kind of preventing water leakage.
For solving this technical problem, this utility model takes below scheme: the check-valves of a kind of preventing water leakage, including valve body and
It is installed on the valve gap at valve body upper opening, in described valve body, offers intake channel and exit passageway, lead in described import
The side in road is provided with valve seat, on described valve seat can folding be sealed and installed with flap, and be positioned at valve seat in described valve body
The rotating rocking bar that is provided with of rotating shaft is passed through in the position on top, and the free end of described rocking bar is connected with flap, at described flap
It is respectively arranged at two ends with annular protrusion up and down relative to valve seat side, described valve seat then offers and described convex annular
Go out the annular lower concave part that portion matches, and be also connected with being fixed with a permanent magnet on the end of described rocking bar free end.
Improve further: be connected by screw bolt and nut between described valve body and valve gap.
Improve further: described valve body and valve seat include nickel valve body and nickel valve seat respectively.
Improve further: described flap includes rubber flap.
Improve further: described permanent magnet includes ferrum nickel cobalt permanent magnet or ferrite permanent magnet.
By using preceding solution, the beneficial effects of the utility model are: check-valves of the present utility model changes
Connection interface structure between flap and valve seat, all uses plane to connect between flap and valve seat in conventional check valves, and this reality
Connect with novel then creative employing curved surface, the sealing effectiveness between flap and valve seat can be greatly reinforced, and due to rocking bar
Free end rotatable, after long-term use, the end of its free end the most easily reduces this check valve seal effect, therefore in this reality
In novel, the end of rocking bar free end is designed with permanent magnet, when flap closes, by the magnetic between permanent magnet and valve seat
Absorption affinity can strengthen the sealing effectiveness between flap and valve seat further, so that the use time of check-valves is longer.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment.
Detailed description of the invention
In conjunction with the drawings and specific embodiments, this utility model is further illustrated.
With reference to Fig. 1, this utility model embodiment disclose the check-valves of a kind of preventing water leakage, including valve body 1 be installed on valve body 1
Valve gap 2 at upper opening, is connected by screw bolt and nut between the most described valve body 1 and valve gap 2, described
Offer intake channel 3 and exit passageway 4 in valve body 1, in the side of described intake channel 3, valve seat 5 is installed, at described valve seat
On 5 can folding be sealed and installed with flap 6, the most described flap 6 selects rubber flap, and in described valve body 1
The rotating rocking bar 7 that is provided with of rotating shaft is passed through in the position being positioned at valve seat 5 top, and the free end of described rocking bar 7 is connected with flap 6
Connect, be respectively arranged at two ends with annular protrusion 8 up and down, at described flap 6 relative to valve seat 5 side on described valve seat 5 then
Offer the annular lower concave part 9 matched with described annular protrusion 8, and be also connected with on the end of described rocking bar 7 free end
Being fixed with a permanent magnet 10, the most described permanent magnet 10 selects ferrum nickel cobalt permanent magnet, also can root in actual production
Ferrite permanent magnet is selected according to needs；
And in the present embodiment, described valve body 1 and valve seat 5 all use nickel material.
By using preceding solution, the beneficial effects of the utility model are: check-valves of the present utility model changes
Connection interface structure between flap and valve seat, all uses plane to connect between flap and valve seat in conventional check valves, and this reality
Connect with novel then creative employing curved surface, the sealing effectiveness between flap and valve seat can be greatly reinforced, and due to rocking bar
Free end rotatable, after long-term use, the end of its free end the most easily reduces this check valve seal effect, therefore in this reality
In novel, the end of rocking bar free end is designed with permanent magnet, when flap closes, by the magnetic between permanent magnet and valve seat
Absorption affinity can strengthen the sealing effectiveness between flap and valve seat further, so that the use time of check-valves is longer.
Although specifically showing in conjunction with preferred embodiment and describing this utility model, implement this technical scheme method
A lot of with approach, the above is only preferred implementation of the present 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 can be right
This utility model makes a variety of changes, and is protection domain of the present utility model.
Claims (5)
1. a check-valves for preventing water leakage, including valve body and be installed on the valve gap at valve body upper opening, opens in described valve body
It is provided with intake channel and exit passageway, in the side of described intake channel, valve seat is installed, can folding close on described valve seat
Envelope is provided with flap, and the rotating rocking bar that is provided with of rotating shaft is passed through in the position being positioned at valve seat top in described valve body, described
The free end of rocking bar is connected with flap, it is characterised in that: set respectively relative to the two ends up and down of valve seat side at described flap
There is annular protrusion, described valve seat then offers the annular lower concave part matched with described annular protrusion, and in institute
State and be also connected with on the end of rocking bar free end being fixed with a permanent magnet.
The check-valves of a kind of preventing water leakage the most according to claim 1, it is characterised in that: pass through between described valve body and valve gap
Screw bolt and nut is connected.
The check-valves of a kind of preventing water leakage the most according to claim 1, it is characterised in that: described valve body and valve seat include respectively
Nickel valve body and nickel valve seat.
The check-valves of a kind of preventing water leakage the most according to claim 1, it is characterised in that: described flap includes rubber flap.
The check-valves of a kind of preventing water leakage the most according to claim 1, it is characterised in that: described permanent magnet includes ferrum nickel cobalt forever
Magnet or ferrite permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620462857.XU CN205745470U (en) | 2016-05-20 | 2016-05-20 | A kind of check-valves of preventing water leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620462857.XU CN205745470U (en) | 2016-05-20 | 2016-05-20 | A kind of check-valves of preventing water leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205745470U true CN205745470U (en) | 2016-11-30 |
Family
ID=57364433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620462857.XU Active CN205745470U (en) | 2016-05-20 | 2016-05-20 | A kind of check-valves of preventing water leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205745470U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458138A (en) * | 2018-04-25 | 2018-08-28 | 铜陵市兴达阀门总厂 | A kind of chemical industry check valve special |
| CN108662304A (en) * | 2018-06-25 | 2018-10-16 | 江苏迪威高压科技股份有限公司 | A kind of modified anti-return pipeline |
-
2016
- 2016-05-20 CN CN201620462857.XU patent/CN205745470U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458138A (en) * | 2018-04-25 | 2018-08-28 | 铜陵市兴达阀门总厂 | A kind of chemical industry check valve special |
| CN108662304A (en) * | 2018-06-25 | 2018-10-16 | 江苏迪威高压科技股份有限公司 | A kind of modified anti-return pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |