CN204610984U - A kind of safety check - Google Patents
A kind of safety check Download PDFInfo
- Publication number
- CN204610984U CN204610984U CN201520293343.1U CN201520293343U CN204610984U CN 204610984 U CN204610984 U CN 204610984U CN 201520293343 U CN201520293343 U CN 201520293343U CN 204610984 U CN204610984 U CN 204610984U
- Authority
- CN
- China
- Prior art keywords
- valve seat
- valve body
- flap
- valve
- safety check
- 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 safety check, comprise valve body, valve gap, flap and rocking bar, described valve gap is located at the upper opening place of valve body, described valve body is provided with the fluid passage of through medium fluid vertically, described fluid passage has water intake and water outlet, between water intake and water outlet, valve seat is provided with in described valve body, described flap can the sealing of folding be located on valve seat, described rocking bar is by the rotating top being located at described valve seat in valve body of rotating shaft, the free end of described rocking bar is connected with flap, described flap is respectively equipped with relative to the upper and lower two ends, that side of valve seat the annular relief be connected of conflicting with described valve seat, a toroidal cavity is formed in described annular relief, the ferromagnetic powder that can be adsorbed on valve seat is filled with in described toroidal cavity.The utility model, by increasing magnet adsorbing structure, effectively improves the sealability of this safety check.
Description
Technical field
The utility model relates to a kind of valve, especially relates to a kind of safety check.
Background technique
Safety check is also known as check valve, one-way valve or check valve, refer to and rely on medium itself to flow and automatic open and close flap, be used for the valve preventing medium from flowing backwards, its effect prevents the function safety check of the medium directional flow in pipeline and unlikely refluence to belong to self-acting valve class, be mainly used on the pipeline of medium one-way flow, medium is only allowed to flow to a direction, to try to avert accidents.The auxiliary system that safety check also can be used for may being raised above system pressure to pressure wherein provides on the pipeline of supply.Safety check mainly can be divided into Swing check valve (rotating according to center of gravity) and Lift check valve (moving along axis).In existing safety check, general structure is embedded on flap by soft seal circle, then be fixed on by flap on rocking bar and form motive sealing with valve seat.But safety check is operationally due to the long-term souring of medium, rocking bar there will be slight loosening, and makes the motive sealing deleterious between flap and valve seat, reveals quantitative change large, is unfavorable for the use of operating mode.
Model utility content
Therefore, in order to solve prior art Problems existing, the utility model provides a kind of sealability better safety check.
For solving this technical problem, the utility model takes following scheme: a kind of safety check, comprise valve body, valve gap, flap and rocking bar, described valve gap is located at the upper opening place of valve body, described valve body is provided with the fluid passage of through medium fluid vertically, described fluid passage has water intake and water outlet, between water intake and water outlet, valve seat is provided with in described valve body, described flap can the sealing of folding be located on valve seat, described rocking bar is by the rotating top being located at described valve seat in valve body of rotating shaft, the free end of described rocking bar is connected with flap, described flap is respectively equipped with relative to the upper and lower two ends, that side of valve seat the annular relief be connected of conflicting with described valve seat, a toroidal cavity is formed in described annular relief, the ferromagnetic powder that can be adsorbed on valve seat is filled with in described toroidal cavity.
Further improvement: be bolted between the upper opening place of described valve gap and valve body, and be provided with seal washer between described valve gap and the upper opening place of valve body.
Further improvement: the making material of described valve body and valve seat is nickel.
The beneficial effects of the utility model are: the utility model by increasing the ring magnet adsorption structure that can be adsorbed on valve seat on flap, make to adsorb tightr between flap and valve seat, effectively improve the motive sealing performance between flap and valve seat, and be ferromagnetic powder due to what adopt in ring magnet adsorption structure, plasticity is stronger, is more conducive to improving sealing effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Now with specific embodiment, the utility model is further illustrated by reference to the accompanying drawings.
With reference to figure 1, the utility model embodiment discloses a kind of safety check, comprise valve body 1, valve gap 6, flap 2 and rocking bar 3, described valve gap 6 is located at the upper opening place of valve body 1, be connected by bolt 7 between described valve gap 6 and the upper opening place of valve body 1, seal washer is provided with in the present embodiment between described valve gap 6 and the upper opening place of valve body 1, sealability between the upper opening place that effectively improve valve gap 6 and valve body 1, described valve body 1 is provided with the fluid passage of through medium fluid vertically, described fluid passage has water intake 4 and water outlet 5, between water intake 4 and water outlet 5, valve seat 8 is provided with in described valve body 1, the making material of described valve body 1 and valve seat 8 is nickel in the present embodiment, described flap 2 can the sealing of folding be located on valve seat 8, described rocking bar 3 is by the rotating top being located at described valve seat 8 in valve body 1 of rotating shaft, the free end of described rocking bar 3 is connected with flap 2, described flap 2 is respectively equipped with relative to the upper and lower two ends, that side of valve seat 8 annular relief 9 be connected of conflicting with described valve seat 8, a toroidal cavity 10 is formed in described annular relief 9, the ferromagnetic powder that can be adsorbed on valve seat 8 is filled with in described toroidal cavity 10, effectively can improve the adsorption force between flap 2 and valve seat 8.
The beneficial effects of the utility model are: the utility model by increasing the ring magnet adsorption structure that can be adsorbed on valve seat on flap, make to adsorb tightr between flap and valve seat, effectively improve the motive sealing performance between flap and valve seat, and be ferromagnetic powder due to what adopt in ring magnet adsorption structure, plasticity is stronger, is more conducive to improving sealing effect.
Although specifically show in conjunction with preferred embodiment and describe the utility model; this technological scheme method and access of specific implementation is a lot; the above is only preferred implementation of the present utility model; but those skilled in the art should be understood that; not departing from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection domain of the present utility model.
Claims (3)
1. a safety check, comprise valve body, valve gap, flap and rocking bar, described valve gap is located at the upper opening place of valve body, described valve body is provided with the fluid passage of through medium fluid vertically, described fluid passage has water intake and water outlet, between water intake and water outlet, valve seat is provided with in described valve body, described flap can the sealing of folding be located on valve seat, described rocking bar is by the rotating top being located at described valve seat in valve body of rotating shaft, the free end of described rocking bar is connected with flap, it is characterized in that: described flap is respectively equipped with relative to the upper and lower two ends, that side of valve seat the annular relief be connected of conflicting with described valve seat, a toroidal cavity is formed in described annular relief, the ferromagnetic powder that can be adsorbed on valve seat is filled with in described toroidal cavity.
2. a kind of safety check according to claim 1, is characterized in that: be bolted between the upper opening place of described valve gap and valve body, and be provided with seal washer between described valve gap and the upper opening place of valve body.
3. a kind of safety check according to claim 1, is characterized in that: the making material of described valve body and valve seat is nickel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520293343.1U CN204610984U (en) | 2015-05-08 | 2015-05-08 | A kind of safety check |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520293343.1U CN204610984U (en) | 2015-05-08 | 2015-05-08 | A kind of safety check |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204610984U true CN204610984U (en) | 2015-09-02 |
Family
ID=53963551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520293343.1U Expired - Fee Related CN204610984U (en) | 2015-05-08 | 2015-05-08 | A kind of safety check |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204610984U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107717A (en) * | 2019-04-02 | 2019-08-09 | 商文辉 | A kind of noiseless check-valves of reversed pressure release type |
| CN113202435A (en) * | 2021-03-31 | 2021-08-03 | 深圳大学 | Pressure maintaining control device based on magnetic field effect and fidelity controller |
-
2015
- 2015-05-08 CN CN201520293343.1U patent/CN204610984U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107717A (en) * | 2019-04-02 | 2019-08-09 | 商文辉 | A kind of noiseless check-valves of reversed pressure release type |
| CN113202435A (en) * | 2021-03-31 | 2021-08-03 | 深圳大学 | Pressure maintaining control device based on magnetic field effect and fidelity controller |
| CN113202435B (en) * | 2021-03-31 | 2022-08-23 | 深圳大学 | Pressure maintaining control device based on magnetic field effect and fidelity controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Check valve Effective date of registration: 20180109 Granted publication date: 20150902 Pledgee: Nanan branch of Xingye Bank, Limited by Share Ltd. Pledgor: FUJIAN KE DA FIRE VALVE MANUFACTURING CO.,LTD. Registration number: 2018350000003 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: 362300 13 Baoan Road, Nanan science and Technology Industrial Zone, Nanan, Quanzhou, Fujian Patentee after: KEDA VALVE TECHNOLOGY CO.,LTD. Address before: 362300 Nanan science and Technology Industrial Zone, Nanan, Quanzhou, Fujian Patentee before: FUJIAN KE DA FIRE VALVE MANUFACTURING CO.,LTD. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |