CN202790723U - Backflow preventing ball check valve - Google Patents
Backflow preventing ball check valve Download PDFInfo
- Publication number
- CN202790723U CN202790723U CN 201220181576 CN201220181576U CN202790723U CN 202790723 U CN202790723 U CN 202790723U CN 201220181576 CN201220181576 CN 201220181576 CN 201220181576 U CN201220181576 U CN 201220181576U CN 202790723 U CN202790723 U CN 202790723U
- Authority
- CN
- China
- Prior art keywords
- ball
- valve body
- spring
- backflow preventing
- check valve
- 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 discloses a backflow preventing ball check valve which comprises a barrel-shaped valve body. The outer wall of the valve body plumps up outwards, the lower end of the valve body is a water inlet end, and the upper end of the valve body is a water outlet end. A ball cover is fixed in the valve body, a seal ball is placed at the lower end of the ball cover, and a T-shaped support is fixed at the upper end of the seal ball. A support rod of the T-shaped support is provided with external threads, an adjusting nut is spirally arranged on the support rod in a combining mode, and a spring is mounted on the support rod in a sleeved mode. The upper end of the spring is arranged on the adjusting nut in a pressing mode, and the lower end of the spring is arranged on the upper surface of the seal ball in a pressing mode. An arc water passing gap is arranged between one side of the seal ball and the inner side of the ball cover, the water outlet end of the valve body is connected with a backflow preventing plate in a hinged mode, and steps are arranged on the inner surface of the backflow preventing plate. The backflow preventing ball check valve is reasonable in structural design, good in water stopping effects, uses the spring to elastically press the seal ball, and at the same, can rotatably screw the adjusting nut so as to control precompression of the spring. Meanwhile, a rubber anti-wearing layer can further strengthen seal performance, so the backflow preventing ball check valve can be widely applied to high-rise buildings and water supply pipelines.
Description
Technical field
The utility model relates to safety check, specifically belongs to the anti-backflow ball check valve.
Background technique
The open-shut device of safety check leans on
MediumFlow and strength is opened voluntarily or closed, to prevent that valve that medium flows backwards is on safety check.Safety check belongs to
Self-acting valveClass is mainly used in the medium one-way flow
PipelineOn, only allow medium to flow to a direction, to try to avert accidents.The ball-type wastewater stopping valve: valve body adopts the full tunnel structure, has the advantage that flow is large, resistance is little.Adopt ball to do flap, be applicable to high viscosity, industry and the domestic sewage pipe network of suspended matter are arranged.
The model utility content
The purpose of this utility model provides a kind of anti-backflow ball check valve, utilizes the spring suppression ball sealer, but while turn-knob adjusting nut, thereby the precompression of control spring, reasonable in design, stagnant water effect is good, can be widely used in tall building, the water supply and sewerage pipeline.
The technical solution of the utility model is as follows:
The anti-backflow ball check valve, include the valve body of tubular, valve outer wall is outwards heaved, the lower end of valve body is feed-water end, the upper end is the waterexit end, be fixed with ball cover in the valve body, the lower end of ball cover is placed with ball sealer, the upper end of ball sealer is fixed with T shape support, and the pole of T shape support is upper with outside thread, has screwed togather adjusting nut on the pole, pole is set with spring outward, the upper end of spring is pressed on adjusting nut, and the lower end of spring is pressed on the upper surface of ball sealer, and the inwall of ball sealer one side and ball cover has the excessively water space of arc, be hinged with the anti-backflow plate on the waterexit end of valve body, have step on the anti-backflow plate internal surface.
The below of described ball sealer is provided with block.
Described anti-backflow plate is articulated in the waterexit end of valve body by hinge, is set with torsion spring on the hinge.
During the utility model turn on pump, liquid enters valve from inlet channel, opens sealing sphere liquid by a plurality of through flow holes on the panel and just enters a valve body annular space by ball cover sidewall through hole and flow to outlet, and this process is opening process.During termination of pumping, liquid enters valve body from outlet, and ball sealer will be closed on the face of ball cover under the effect of hydraulic pressure, thus the snout cavity that cut-off flows to, and this process is the termination of pumping process.
The utility model utilizes the spring suppression ball sealer, but while turn-knob adjusting nut, thus the precompression of control spring, while rubber wear-resisting layer is sealability further, reasonable in design, stagnant water effect is good, can be widely used in tall building, the water supply and sewerage pipeline.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Referring to accompanying drawing, the anti-backflow ball check valve, include the valve body 1 of tubular, valve body 1 outer wall is outwards heaved, the lower end of valve body 1 is feed-water end 2, the upper end is waterexit end 3, be fixed with ball cover 4 in the valve body 1, the lower end of ball cover 4 is placed with ball sealer 5, and the upper end of ball sealer 5 is fixed with T shape support 6, on the pole 7 of T shape support 6 with outside thread, screwed togather adjusting nut 8 on the pole, be set with spring 9 outside the pole 7, the upper end of spring 9 is pressed on adjusting nut, and the lower end of spring is pressed on the upper surface of ball sealer 5, the inwall of ball sealer one side and ball cover has the excessively water space 10 of arc, be hinged with anti-backflow plate 12 on the waterexit end of valve body 1, have step 13 on anti-backflow plate 12 internal surfaces, the anti-backflow plate is articulated in the waterexit end of valve body by hinge, be set with torsion spring on the hinge, the below of ball sealer is provided with block 11.
Claims (3)
1. anti-backflow ball check valve, include the valve body of tubular, it is characterized in that: valve outer wall is outwards heaved, the lower end of valve body is feed-water end, the upper end is the waterexit end, be fixed with ball cover in the valve body, the lower end of ball cover is placed with ball sealer, the upper end of ball sealer is fixed with T shape support, and the pole of T shape support is upper with outside thread, has screwed togather adjusting nut on the pole, pole is set with spring outward, the upper end of spring is pressed on adjusting nut, and the lower end of spring is pressed on the upper surface of ball sealer, and the inwall of ball sealer one side and ball cover has the excessively water space of arc, be hinged with the anti-backflow plate on the waterexit end of valve body, have step on the anti-backflow plate internal surface.
2. anti-backflow ball check valve according to claim 1, it is characterized in that: the below of described ball sealer is provided with block.
3. anti-backflow ball check valve according to claim 1 is characterized in that: described anti-backflow plate is articulated in the waterexit end of valve body by hinge, is set with torsion spring on the hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220181576 CN202790723U (en) | 2012-04-25 | 2012-04-25 | Backflow preventing ball check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220181576 CN202790723U (en) | 2012-04-25 | 2012-04-25 | Backflow preventing ball check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790723U true CN202790723U (en) | 2013-03-13 |
Family
ID=47817987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220181576 Expired - Fee Related CN202790723U (en) | 2012-04-25 | 2012-04-25 | Backflow preventing ball check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202790723U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454365A (en) * | 2018-11-02 | 2019-03-12 | 苏州睿达矩自动化设备有限公司 | A kind of retinue panel assembly for air-conditioning pipe valve welding equipment |
| CN109865418A (en) * | 2019-03-12 | 2019-06-11 | 淮阴工学院 | A kind of variable diameter carbonators lye anti-return outlet device |
-
2012
- 2012-04-25 CN CN 201220181576 patent/CN202790723U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454365A (en) * | 2018-11-02 | 2019-03-12 | 苏州睿达矩自动化设备有限公司 | A kind of retinue panel assembly for air-conditioning pipe valve welding equipment |
| CN109865418A (en) * | 2019-03-12 | 2019-06-11 | 淮阴工学院 | A kind of variable diameter carbonators lye anti-return outlet device |
| CN109865418B (en) * | 2019-03-12 | 2021-09-17 | 淮阴工学院 | Alkali liquor backflow-preventing outlet device of variable-diameter carbonization tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20140425 |