CN203023725U - Horizontal pipeline backflow preventing device - Google Patents
Horizontal pipeline backflow preventing device Download PDFInfo
- Publication number
- CN203023725U CN203023725U CN2012207298003U CN201220729800U CN203023725U CN 203023725 U CN203023725 U CN 203023725U CN 2012207298003 U CN2012207298003 U CN 2012207298003U CN 201220729800 U CN201220729800 U CN 201220729800U CN 203023725 U CN203023725 U CN 203023725U
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- China
- Prior art keywords
- pipeline
- piston
- spherical cavity
- inlet pipe
- support
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Abstract
The utility model discloses a horizontal pipeline backflow preventing device. The horizontal pipeline backflow preventing device comprises a piston and an outer pipe, wherein the outer pipe comprises a spherical cavity, an inlet pipe and an outlet pipe; one end of the spherical cavity is connected with the inlet pipe, and the other end of the spherical cavity is connected with the outer pipe; the piston comprises a piston body, a support and supporting legs; the piston body is in a circular truncated cone shape and is connected with the support, the periphery of the support is provided with the supporting legs; the piston is placed in the spherical cavity, the piston body is matched with the spherical cavity, and a sliding leg is connected with the inner wall of the inlet pipe in a sliding manner; the supporting legs are pulleys or skates, the piston body of the piston is made of hard aluminium alloy, and a rubber material or silica gel are packed on the periphery of piston body; and the inlet pipe and the outlet pipe are used on a thread connecting end connected with a pipeline or a bayonet type connecting end. The horizontal pipeline backflow preventing device provided by the utility model has the advantages that structure is simple, the pressure change of current is utilized when an input end pipeline is ruptured, the current is automatically cut off, the water in an output end pipeline is effectively prevented from flowing back to a fracturing position, the loss is reduced, and the maintenance of a pipeline is convenient.
Description
Technical field
The utility model relates to fluid technique field, particularly a kind of horizontal pipe back-flow preventer.
Background technique
The water of pipeline is the equipment that needs of being sent into by water supply station by pressure under normal conditions, when in the process of carrying due to pipeline breaking, rent can leak, will inevitably cause so the pressure decreased in the rent downstream line, thereby the water that causes rent to flow to the downstream is back to rent, causes waste.And normally by manually carrying out throttle down, if but find untimely can cause greater loss.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of horizontal pipe back-flow preventer, when input end pipeline breaking, can automatically block current, and anti-sealing refluxes.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of horizontal pipe back-flow preventer comprises piston and outer tube; Outer tube comprises spherical cavity, inlet pipe and goes out pipe, and an end of spherical cavity is connected with inlet pipe, and the other end is connected with going out to manage; Piston comprises cock body, support and leg, and cock body is frustoconic shape and is connected with support, and the periphery of support is provided with leg; Piston is placed in spherical cavity, and cock body and spherical cavity are suitable, and the inwall of shoes and inlet pipe is slidably connected.
As preferably, leg is pulley, and pulley and support are hinged.
As preferably, leg is skid, and skid is fixed on the outer end of support.
As preferably, the cock body of piston is that hard aluminum alloy is made, the gum cover that the periphery parcel of cock body is made with flexible material.
As preferably, flexible material is rubber material or silica gel.
As preferably, inlet pipe, go out pipe and be equipped with the threaded ends that is connected for pipeline.
As preferably, inlet pipe, go out pipe and be equipped with for the bayonet coupling end that is connected with pipeline.
The beneficial effects of the utility model are:
Simple in structure, when utilizing input end pipeline breaking, the pressure of current changes, and automatically blocks current, can prevent effectively that the water in pipeline at output is back to rent, thereby can reduce the loss, and facilitates the maintenance of pipeline.
Description of drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the utility model horizontal pipe back-flow preventer embodiment 1 structural drawing (piston unlatching).
Fig. 2 is the utility model horizontal pipe back-flow preventer embodiment 1 structural drawing (piston is blocked).
Fig. 3 is the utility model horizontal pipe back-flow preventer embodiment 2 structural drawing.
In figure, 1-goes out pipe, 2-spherical cavity, 3-inlet pipe, 4-cock body, 5-gum cover, 6-support, 7-pulley, 8-skid.
Embodiment
Embodiment 1:
Fig. 1 is a kind of horizontal pipe back-flow preventer, is comprised of piston and outer tube.Outer tube is by spherical cavity 2, inlet pipe 3 and go out pipe 1 and form, and an end of spherical cavity 2 is connected with inlet pipe 3, the other end of spherical cavity 2 with go out to manage 1 and be connected.Piston is comprised of cock body 4, support 6 and pulley 7, and cock body 4 is frustoconic shape, and the small end of round platform is connected with support, is provided with pulley 7 in the periphery of support.
Piston is placed in spherical cavity, and the cavity geometry of the periphery of cock body 4 and spherical cavity inlet is suitable, just in time the inlet of spherical cavity can be blocked.Support 6 is positioned at inlet pipe 3, and outer end and the pulley of support are hinged, is provided with the groove suitable with pulley at the inwall of inlet pipe 3, and pulley 7 slides in the groove of inlet pipe 3 inwalls.
Outer effective stainless steel material is made.
The cock body 4 use hard aluminum alloys of piston are made, and the periphery of cock body is surrounded by the gum cover that rubber is made.
Be equipped with the port that is connected pipe the internal thread that is connected for pipeline at inlet pipe.
Working principle:
When installing and using, inlet pipe is connected with input end pipeline (intake pipe), goes out pipe and be connected with pipeline at output (outlet pipe), and require this device is horizontal setting (this device is at non-horizontal position cisco unity malfunction).Current are flowed through from input end pipeline (intake pipe) after this device, then flow out from pipeline at output (outlet pipe).
Under normal circumstances, water (flow) direction is from A → B, and under the effect of hydraulic pressure, pushing piston is moved to the left along inlet pipe inwall level, and current are flow through from the surrounding of cock body.
When the input end pipeline (intake pipe) that is connected with inlet pipe 3 causes when breaking down when smooth into water, reverse flow occurs from B → A in current, due to the water velocity of the cock body surrounding water velocity greater than the pipe middle part, so pressure herein is less than managing the pressure of middle part for the cock body top, ordering about whole piston moves horizontally to the right along the inlet pipe inwall, cock body is blocked the import (Fig. 2) of spherical inner chamber, reaches sealing effect.
The present embodiment breaks and under the current leakage situation at input end pipeline (intake pipe), make piston automatically block the import of spherical cavity, block current, prevent that the water interior with going out pipe 1 pipeline at output that is connected (outlet pipe) is back to rent, thereby can reduce the loss, be convenient to the maintenance of pipeline.
Embodiment 2:
In Fig. 3, the outer end of support 6 is fixedly connected with skid 8, and skid 8 slides in the groove of inlet pipe 3 inwalls.Adopt skid to replace rotatable parts, make device more durable.
Cock body 4 peripheries coat the gum cover 5 that silica gel is made, and its sealing and working life are good than rubber material.
Inlet pipe is the bayonet coupling end with the port that goes out pipe, can be connected with pipeline quickly and easily.Be applicable to temporary construction or rescue the place.
Other structures of the present embodiment are identical with embodiment 1.
The utility model is not limited to above-mentioned two embodiments, and every foundation technical spirit of the present utility model all falls into the protection domain of technical solutions of the utility model to any simple modification, equivalent variations and modification that above embodiment does.
Claims (10)
1. a horizontal pipe back-flow preventer, is characterized in that: comprise piston and outer tube; Described outer tube comprises spherical cavity, inlet pipe and goes out pipe, and an end of described spherical cavity is connected with inlet pipe, and the other end is connected with going out to manage; Described piston comprises cock body, support and leg, and cock body is frustoconic shape and is connected with support, and the periphery of support is provided with leg; Described piston is placed in spherical cavity, and described cock body and spherical cavity are suitable, and the inwall of described shoes and inlet pipe is slidably connected.
2. horizontal pipe back-flow preventer according to claim 1, it is characterized in that: described leg is pulley, and pulley and support are hinged.
3. horizontal pipe back-flow preventer according to claim 1, it is characterized in that: described leg is skid, and skid is fixed on the outer end of support.
4. horizontal pipe back-flow preventer according to claim 1, it is characterized in that: described piston cock body is that hard aluminum alloy is made, the gum cover that the periphery parcel of cock body is made with flexible material.
5. horizontal pipe back-flow preventer according to claim 4, it is characterized in that: described flexible material is rubber material.
6. horizontal pipe back-flow preventer according to claim 4, it is characterized in that: described flexible material is silica gel.
7. according to claim 1-6 any one described horizontal pipe back-flow preventer, it is characterized in that: described inlet pipe is provided with the threaded ends that is connected for pipeline.
8. according to claim 1-6 any one described horizontal pipe back-flow preventer is characterized in that: describedly go out pipe and be provided with the threaded ends that is connected for pipeline.
9. according to claim 1-6 any one described horizontal pipe back-flow preventer, it is characterized in that: described inlet pipe is provided with for the bayonet coupling end that is connected with pipeline.
10. according to claim 1-6 any one described horizontal pipe back-flow preventer is characterized in that: describedly go out pipe and be provided with for the bayonet coupling end that is connected with pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207298003U CN203023725U (en) | 2012-12-27 | 2012-12-27 | Horizontal pipeline backflow preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207298003U CN203023725U (en) | 2012-12-27 | 2012-12-27 | Horizontal pipeline backflow preventing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023725U true CN203023725U (en) | 2013-06-26 |
Family
ID=48647710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207298003U Expired - Lifetime CN203023725U (en) | 2012-12-27 | 2012-12-27 | Horizontal pipeline backflow preventing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023725U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989908A (en) * | 2015-05-26 | 2015-10-21 | 成都高普石油工程技术有限公司 | Connector of petroleum pipeline |
| CN105972274A (en) * | 2016-08-03 | 2016-09-28 | 氟络塞尔特种阀门(苏州)有限公司 | Lift check valve |
-
2012
- 2012-12-27 CN CN2012207298003U patent/CN203023725U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989908A (en) * | 2015-05-26 | 2015-10-21 | 成都高普石油工程技术有限公司 | Connector of petroleum pipeline |
| CN105972274A (en) * | 2016-08-03 | 2016-09-28 | 氟络塞尔特种阀门(苏州)有限公司 | Lift check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |
|
| CX01 | Expiry of patent term |