CN211259748U

CN211259748U - A prevent valve against current for water conservancy pipeline

Info

Publication number: CN211259748U
Application number: CN201921745853.2U
Authority: CN
Inventors: 王镇江
Original assignee: Shanghai Hengzhe Electromechanical Engineering Co ltd
Current assignee: Shanghai Hengzhe Electromechanical Engineering Co ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-08-14
Anticipated expiration: 2029-10-17

Abstract

The utility model discloses a prevent valve against current for water conservancy pipeline, relate to water conservancy pipeline technical field, which comprises a housin, the fixed intercommunication in left side of casing has the water inlet, the fixed intercommunication in left side inside wall fixedly connected with valve of casing, the fixed intercommunication in right side of casing has the delivery port, two fixed blocks of the inboard wall fixedly connected with in the right side of casing, the equal first screwed pipe of fixedly connected with in one end that two fixed block left sides are close to each other, the inside threaded connection of first screwed pipe has first threaded rod, first threaded rod runs through first screwed pipe and extends to the inside of fixed block, the one end threaded connection that the fixed block was kept away from to first threaded rod has the filter screen, the bottom of casing is seted up flutedly, the bottom of recess is equipped with the baffle, the inside fixedly connected with second screwed pipe at baffle both ends. This a prevent valve against current for water conservancy pipeline possesses simple structure, prevents the advantage of blocking, has solved the problem that water conservancy pipeline blocks the maintenance difficulty.

Description

A prevent valve against current for water conservancy pipeline

Technical Field

The utility model relates to a water conservancy pipeline technical field specifically is a prevent valve against current for water conservancy pipeline.

Background

The valve is a device for controlling the direction, pressure and flow of fluid in a fluid system, and is a device capable of controlling the flow of a medium (liquid, gas or powder) in a pipe or equipment by flowing or stopping the medium.

The existing agricultural water conservancy irrigation anti-reflux valve is high in manufacturing cost and complex in maintenance, and the valve is easy to block due to more sundries in the agricultural water conservancy irrigation pipeline.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a prevent valve against current for water conservancy pipeline possesses simple structure, prevents obstructed advantage, has solved the problem of water conservancy pipeline jam maintenance difficulty.

Technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a prevent valve against current for water conservancy pipeline, includes the casing, the fixed intercommunication in left side of casing has the water inlet, the inside wall fixedly connected with valve in the left side of casing, the fixed intercommunication in right side of casing has the delivery port, two fixed blocks of the inside wall fixedly connected with in the right side of casing, two the first screwed pipe of the equal fixedly connected with in one end that the fixed block left side is close to each other, the inside threaded connection of first screwed pipe has first threaded rod, first threaded rod runs through first screwed pipe and extends to the inside of fixed block, the one end threaded connection that the fixed block was kept away from to first threaded rod has the filter screen.

The bottom of the shell is provided with a groove, the bottom of the groove is provided with a baffle, the inner parts of the two ends of the baffle are fixedly connected with second threaded pipes, the upper parts of the second threaded pipes are in threaded connection with second threaded rods, and the second threaded rods penetrate through the second threaded pipes and extend to the inner parts of the shell.

Furthermore, the valve comprises a valve shell, six symmetrical drain holes are formed in the top wall and the bottom wall of the valve shell, the upper portion and the lower portion of the left inner side wall of the valve shell are fixedly connected with spring seats, each spring seat is fixedly connected with a spring, the two springs are fixedly connected with the same rubber valve at the top, the six drain holes are formed in the top wall and the bottom wall of the valve shell, the water pressure inside the valve can be reduced, the service life of the valve is prolonged, and the springs can effectively reset after the water inlet stops supplying water to prevent backflow.

Further, the aperture of filter screen is 1cm, the diameter of filter screen is less than the diameter of recess, and the filter screen can prevent effectively that debris from getting into the delivery port, causes the pipeline to block.

Furthermore, the maximum stretching amount of the spring within the elastic limit is larger than the length of the valve shell, the spring is prevented from being damaged and being incapable of resetting to cause valve failure, and the diameter of the rubber valve is matched with the diameter of the valve shell to prevent water from seeping back.

Furthermore, the length of the baffle is greater than that of the groove, so that sundries can be temporarily stored in the groove, and the baffle can be conveniently processed when the sundries are cleaned.

Furthermore, the diameter of the water inlet is the same as that of the water outlet, the water discharge quantity of the water inlet is the same as that of the six drain holes, when the water flow of the water inlet is overlarge, the water outlet can still normally discharge water, and the pressure inside the valve is guaranteed to be normal.

1. This a prevent valve against current for water conservancy pipeline can make rubber valve automatic switch through the pressure of rivers to the spring, can effectively avoid the delivery port blocking phenomenon to appear through the filter screen, can effectively prevent through setting up six wash ports that the internal damage that causes of too big pressure in the valve.

2. This a prevent valve against current for water conservancy pipeline can make debris can concentrate on fixed position through setting up the recess, can conveniently handle during clearance debris, can effectively wash in the pipeline through setting up the baffle, and equipment conveniently maintains and maintains.

Drawings

FIG. 1 is a sectional view of the present invention;

fig. 2 is an enlarged schematic view of the valve structure of fig. 1 according to the present invention.

In the figure: the device comprises a shell 1, a valve 2, a valve shell 201, a rubber valve 202, a spring seat 203, a water discharging hole 204, a spring 205, a water inlet 3, a filter screen 4, a water outlet 5, a groove 6, a baffle 7, a second threaded pipe 8, a second threaded rod 9, a first threaded pipe 10, a first threaded rod 11 and a fixed block 12.

Detailed Description

As shown in fig. 1-2, the utility model provides a technical solution: the utility model provides a prevent valve against current for water conservancy pipeline includes casing 1, the fixed intercommunication in left side of casing 1 has water inlet 3, the diameter of water inlet 3 is the same with the diameter of delivery port 5, water inlet 3 is the same with the displacement of six wash ports 204, casing 1 left side inside wall fixedly connected with valve 2, valve 2 includes valve housing 201, six symmetrical wash ports 204 have been seted up to valve housing 201's roof and diapire, the upper portion and the equal fixed connection spring holder 203 in lower part of valve housing 201 left side inside wall, the equal fixedly connected with spring 205 in inside of every spring holder 203, prevent that spring 205 from damaging the unable valve 2 that resets and cause and become invalid, the diameter of rubber valve 202 and the diameter looks adaptation of valve housing 201, it seeps back to prevent water, the maximum tensile volume of spring 205 in elastic limit is greater than the length of valve housing 201, the diameter of rubber valve 202 and the diameter looks adaptation of valve housing 201.

The top of the two springs 205 is fixedly connected with the same rubber valve 202, the top wall and the bottom wall of the valve shell 201 are provided with six drain holes 204 which can reduce the water pressure inside the valve 2 and prolong the service life of the valve 2, the springs 205 can effectively reset after the water inlet stops 3 water supply to prevent backflow, the right side of the shell 1 is fixedly communicated with a water outlet 5, the right inner side wall of the shell 1 is fixedly connected with two fixed blocks 12, the ends, close to each other, at the left sides of the two fixed blocks 12 are fixedly connected with first threaded pipes 10, the inner threads of the first threaded pipes 10 are connected with first threaded rods 11, the first threaded rods 11 penetrate through the first threaded pipes 10 and extend into the fixed blocks 12, one ends, far away from the fixed blocks 12, of the first threaded rods 11 are connected with filter screens 4 in a threaded manner, the apertures of the filter screens 4 are 1cm, the diameters of the filter screens 4 are, causing the pipe to become clogged.

Recess 6 has been seted up to the bottom of casing 1, debris can be temporarily stored to recess 6, can conveniently handle during clearance debris, the bottom of recess 6 is equipped with baffle 7, the length of baffle 7 is greater than the length of recess 6, the upper portion and the recess 6 looks adaptation of baffle 7, the inside fixedly connected with second screwed pipe 8 at baffle 7 both ends, the upper portion threaded connection of second screwed pipe 8 has second threaded rod 9, second threaded rod 9 runs through second screwed pipe 8 and extends to the inside of casing 1.

When the water flow cleaning device is used, when water flows through the water inlet 3, the water flow pressure pushes the rubber valve 202 to move backwards, at the moment, the valve 2 opens the water flow to flow into the shell 1 through the water discharge hole 204, the water flow is filtered through the filter screen 4 in the shell 1 and flows out from the water outlet 5, if the water flow of the water inlet 3 is interrupted, the spring 205 pulls the rubber valve 202 to reset to prevent the backflow, and when the shell 1 needs to be cleaned, the baffle 7 is opened to clean sundries in the groove 6.

Claims

1. The utility model provides a prevent valve against current for water conservancy pipeline, includes casing (1), its characterized in that: a water inlet (3) is fixedly communicated with the left side of the shell (1), a valve (2) is fixedly connected to the left inner side wall of the shell (1), a water outlet (5) is fixedly communicated with the right side of the shell (1), two fixing blocks (12) are fixedly connected to the right inner side wall of the shell (1), a first threaded pipe (10) is fixedly connected to one end, close to the left side of each fixing block (12), of each fixing block, a first threaded rod (11) is connected to the inner side of each first threaded pipe (10) in a threaded mode, each first threaded rod (11) penetrates through each first threaded pipe (10) and extends into each fixing block (12), and a filter screen (4) is connected to one end, far away from each fixing block (12), of each first threaded rod (11) in;

the bottom of casing (1) is seted up flutedly (6), the bottom of recess (6) is equipped with baffle (7), the inside fixedly connected with second screwed pipe (8) at baffle (7) both ends, the upper portion threaded connection of second screwed pipe (8) has second threaded rod (9), second threaded rod (9) run through second screwed pipe (8) and extend to the inside of casing (1).

2. The anti-backflow valve for water conservancy pipelines according to claim 1, wherein: the valve (2) comprises a valve shell (201), six symmetrical drain holes (204) are formed in the top wall and the bottom wall of the valve shell (201), the upper portion and the lower portion of the left inner side wall of the valve shell (201) are fixedly connected with spring seats (203), each spring seat (203) is fixedly connected with a spring (205), the top of each spring (205) is fixedly connected with the same rubber valve (202), and the top wall and the bottom wall of the valve shell (201) are arranged.

3. The anti-backflow valve for water conservancy pipelines according to claim 1, wherein: the aperture of the filter screen (4) is 1cm, and the diameter of the filter screen (4) is smaller than that of the groove (6).

4. An anti-reflux valve for water conservancy pipelines according to claim 2, wherein: the maximum stretching amount of the spring (205) within the elastic limit is larger than the length of the valve shell (201), and the diameter of the rubber valve (202) is matched with that of the valve shell (201).

5. The anti-backflow valve for water conservancy pipelines according to claim 1, wherein: the length of the baffle (7) is greater than that of the groove (6), and the upper part of the baffle (7) is matched with the groove (6).

6. The anti-backflow valve for water conservancy pipelines according to claim 1, wherein: the diameter of the water inlet (3) is the same as that of the water outlet (5), and the water discharge quantity of the water inlet (3) is the same as that of the six water discharge holes (204).