CN210566455U

CN210566455U - Double valve capable of preventing backflow

Info

Publication number: CN210566455U
Application number: CN201921684500.6U
Authority: CN
Inventors: 郜明珠
Original assignee: Nanjing Keshu Intelligent Technology Co Ltd
Current assignee: Nanjing Keshu Intelligent Technology Co Ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-05-19
Anticipated expiration: 2029-10-10

Abstract

The utility model discloses a can prevent dual valve that refluence was used, including first connecting pipe, second connecting pipe and third connecting pipe, first connecting pipe, second connecting pipe and third connecting pipe intercommunication set up, the one end difference fixedly connected with pipeline of first connecting pipe and third connecting pipe, the middle part of third connecting pipe is connected with the studio, the studio sets up with third connecting pipe intercommunication, the side fixedly connected with installing frame of first connecting pipe and third connecting pipe. The utility model discloses, through the lateral wall contact of gasbag and third connecting pipe, the gasbag is supported and is pushed down the third connecting pipe and get the export, the effectual rivers refluence that has prevented, the simple mode of having avoided conventional control rivers to flow backwards and only controlling the rivers and control the refluence through removing stagnant water valve, the characteristic of this mode application rivers refluence, realized automatically that the rivers to the refluence seal, dual control rivers flow backwards, avoided the possibility of refluence greatly.

Description

Double valve capable of preventing backflow

Technical Field

The utility model relates to the technical field of valves, especially, relate to a can prevent dual valve of refluence usefulness.

Background

Valves are mechanical devices that control the flow, direction, pressure, temperature, etc. of a flowing fluid medium, valves are basic components in piping systems, valves for fluid control, ranging from the simplest shut-off valves to the various valves used in extremely complex autonomous systems, and are of a wide variety of types and specifications.

Traditional valve is exactly be used for controlling rivers, adjusts the effect of rivers, not only can block rivers when closing the valve, has also realized preventing the condition of rivers refluence simultaneously and has taken place, and the rivers of avoiding the refluence get into the delivery port that forward flows, arouses corresponding drawback, however conventional method of controlling rivers refluence is not perfect enough, only controls the refluence through removing stagnant water valve control rivers, for this reason, provides a dual valve that can prevent the refluence usefulness.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defect that the method for controlling water flow backflow in the prior art is not perfect enough, and providing a dual valve for preventing backflow, dual control water flow backflow.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a can prevent dual valve of refluence usefulness, includes first connecting pipe, second connecting pipe and third connecting pipe, first connecting pipe, second connecting pipe and third connecting pipe intercommunication set up, the one end difference fixedly connected with pipeline of first connecting pipe and third connecting pipe, the middle part of third connecting pipe is connected with the studio, the studio sets up with third connecting pipe intercommunication, the side fixedly connected with installing frame of first connecting pipe and third connecting pipe, two the fixed cover of one side fixedly connected with that the installing frame is relative, be connected with slewing mechanism on the fixed cover, the last slide mechanism that is connected with of slewing mechanism, the inside wall of studio is connected with drive mechanism and keeps off the mechanism.

Preferably, slewing mechanism includes the same sliding sleeve of fixed connection on two fixed cover sides, the top fixedly connected with of sliding sleeve lateral wall rotates the handle, the internal thread groove has been seted up to the inside wall of sliding sleeve, the inside wall threaded connection of internal thread groove has the lead screw.

Preferably, slide mechanism includes the valve of pressing of fixed connection at the lead screw tip, the side fixedly connected with who presses the valve supports the baffle, the installing port has been seted up to the side of second connecting pipe, the inside wall fixedly connected with sealing washer of installing port, the inside wall and the valve sliding connection that presses of sealing washer, just the inside wall sliding connection of the inside wall and the second connecting pipe that press the valve.

Preferably, drive mechanism includes two fixed blocks of fixed connection on the studio lateral wall, fixedly connected with connecting rod between the inside wall of fixed block and studio, the sliding block has been cup jointed in the slip on the lateral wall of connecting rod, the cover is equipped with the spring on the lateral wall of connecting rod, the both ends of spring respectively with fixed block and sliding block fixed connection.

Preferably, one side of each of the two sliding blocks opposite to each other is fixedly connected with the same air bag, and the side surface of each air bag is abutted against the side wall of the third connecting pipe.

Preferably, a sliding opening is formed in the sliding block, and the inner side wall of the sliding opening is in sliding connection with the outer side wall of the connecting rod.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the lateral wall contact of gasbag and third connecting pipe, the gasbag pushes down the third connecting pipe and gets the export, the effectual rivers refluence that has prevented, the simple mode of having avoided conventional control rivers refluence only to control the rivers through removing stagnant water valve and controlling the refluence, the characteristic of this mode application rivers refluence, automatic realized sealing the rivers of refluence, dual control rivers refluence, the possibility of having avoided the refluence greatly, make the effect rationalize more.

2. Because the first connecting pipe and the third connecting pipe are arranged in a vertically staggered manner, water flows reversely flow back to the inner side wall of the third connecting pipe through a rising water level difference, and a small amount of water flow is remained on the inner side wall of the third connecting pipe, so that the water flow is prevented from flowing backwards.

Drawings

Fig. 1 is a schematic structural view of a dual valve for preventing backflow provided by the present invention;

fig. 2 is an enlarged view of a point a in fig. 1.

In the figure: the air bag comprises a first connecting pipe 1, a second connecting pipe 2, a third connecting pipe 3, a working chamber 4, a pressure resisting valve 5, a mounting frame 6, a fixing sleeve 7, a sliding sleeve 8, a lead screw 9, a rotating handle 10, a sliding block 11, a connecting rod 12, a spring 13, a fixing block 14 and an air bag 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a dual valve capable of preventing backflow comprises a first connection pipe 1, a second connection pipe 2 and a third connection pipe 3, wherein the first connection pipe 1, the second connection pipe 2 and the third connection pipe 3 are communicated with each other, one end of the first connection pipe 1 and one end of the third connection pipe 3 are respectively fixedly connected with a pipeline, the middle part of the third connection pipe 3 is connected with a working chamber 4, the working chamber 4 is communicated with the third connection pipe 3, because the first connection pipe 1 and the third connection pipe 3 are arranged in a vertically staggered manner, the water flows reversely flow through a rising water level difference, a small amount of water flow is remained on the inner side wall of the third connection pipe 3 to prevent the water flow from reversely flowing, the side surfaces of the first connection pipe 1 and the third connection pipe 3 are fixedly connected with mounting frames 6, one side opposite to the two mounting frames 6 is fixedly connected with a fixing sleeve 7, and through the arrangement of the mounting frames 6 and, a internal thread groove has been seted up to the top fixedly connected with rotation handle 10 of 8 lateral walls of sliding sleeve, and the inside wall threaded connection of sliding sleeve 8 has lead screw 9 for fixed sliding sleeve 8's position avoids sliding sleeve 8 unstable, is connected with slewing mechanism on the fixed cover 7, and slewing mechanism includes same sliding sleeve 8 of fixed connection on two fixed cover 7 sides.

The rotating mechanism is connected with a sliding mechanism which comprises a pressing valve 5 fixedly connected with the end part of a screw rod 9, the pressure-resisting valve 5 is contacted with the side wall of the third connecting pipe 3 to stop the water flow introduced into the first connecting pipe 1, so as to achieve the effect of stopping water, meanwhile, the situation of blocking the backflow of water flow is also achieved, the side surface of the pressure-resisting valve is fixedly connected with a baffle plate, the baffle plate is always contacted with the water flow through the design of the baffle plate on the pressure-resisting valve 5, the pressure-resisting valve 5 is prevented from being always contacted with the water flow to cause the damage of the pressure-resisting valve 5, the side surface of the second connecting pipe 2 is provided with a mounting opening, the inner side wall of the mounting opening is fixedly connected with a sealing ring, the inner side wall of the sealing ring is in sliding connection with the pressure-resisting, and the inner side wall of the abutting valve 5 is in sliding connection with the inner side wall of the second connecting pipe 2, and the water is prevented from flowing out from the mounting hole through the design of the sealing ring, so that the waste of a water source is caused.

The inner side wall of the working chamber 4 is connected with a transmission mechanism and a resisting mechanism, the transmission mechanism comprises two fixed blocks 14 fixedly connected on the side wall of the working chamber 4, a connecting rod 12 is fixedly connected between the fixed blocks 14 and the inner side wall of the working chamber 4, a sliding block 11 is sleeved on the outer side wall of the connecting rod 12 in a sliding manner, a sliding port is formed in the sliding block 11, the inner side wall of the sliding port is connected with the outer side wall of the connecting rod 12 in a sliding manner, the sliding block 11 slides on the side wall of the connecting rod 12 to limit the movement of the air bag 15, so that the air bag 15 can not move in a deviation manner, a spring 13 is sleeved on the outer side wall of the connecting rod 12, two ends of the spring 13 are respectively fixedly connected with the fixed blocks 14 and the sliding block 11, one side opposite to the two sliding blocks 11 is fixedly connected with the same air bag 15, the gasbag 15 supports and withholds third connecting pipe 3 and gets the export, the effectual rivers refluence that has prevented, avoided conventional control rivers refluence only to control the simple mode that the rivers controlled the refluence through removing stagnant water valve, this mode application rivers refluence's characteristic, realized automatically that the rivers to the refluence seal, dual control rivers refluence, avoided the possibility of refluence greatly, make the effect rationalize more.

The utility model discloses in, with the tip of pipeline fixed connection at first connecting pipe 1 and third connecting pipe 3, keep intercommunication between the pipeline, rivers pass through first connecting pipe 1 this moment, second connecting pipe 2 and third connecting pipe 3 flow from third connecting pipe 3, when needs stagnant water stops water, rotate rotation handle 10, corresponding rotation handle 10 drives slip cap 8 and rotates, can down remove with 8 threaded connection's of slip cap lead screw 9, it slides on the lateral wall of second connecting pipe 2 to drive the pressure valve 5, until the lateral wall contact of pressure valve 5 and third connecting pipe 3, the rivers that let in first connecting pipe 1 block, play the effect that stagnant water stops water, the condition that blocks the rivers refluence also plays simultaneously, through the setting of installing frame 6 and fixed cover 7, a position for fixing slip cap 8, avoid slip cap 8 unstability.

Because first connecting pipe 1 and third connecting pipe 3 are the setting of dislocation from top to bottom, make rivers flow back through a rising water head, just on the inside wall of third connecting pipe 3 can be remained to the rivers of a small amount, prevent the rivers refluence, through the design of the baffle on the pressure valve 5, make the baffle contact with rivers all the time, prevent to press valve 5 to bring the damage of pressure valve 5 with rivers contact always, prevent through the design of sealing washer that the rivers from flowing from the installing port, cause the waste at water source.

When rivers are flowing, rivers can extrude gasbag 15 and remove, rivers flow from gasbag 15's side, thereby continue to flow, during the rivers refluence, the rivers of refluence can drive gasbag 15 and remove, sliding block 11 slides on the lateral wall of connecting rod 12 this moment, remove to gasbag 15 is spacing, guarantee that gasbag 15's removal can not squint, until gasbag 15 and the lateral wall contact of third connecting pipe 3, gasbag 15 supports and withstands third connecting pipe 3 and gets the export, the effectual rivers refluence that has prevented, avoided conventional control rivers refluence and only controlled the simple mode of refluence through removing stagnant water valve control rivers, the characteristic of this mode application rivers refluence, automatic rivers that have realized to the refluence seal, dual control rivers refluence, the possibility of refluence has been avoided greatly, make the effect rationalize more.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A dual valve capable of preventing backflow comprises a first connecting pipe (1), a second connecting pipe (2) and a third connecting pipe (3), it is characterized in that the first connecting pipe (1), the second connecting pipe (2) and the third connecting pipe (3) are communicated, one end of the first connecting pipe (1) and one end of the third connecting pipe (3) are respectively and fixedly connected with a pipeline, the middle part of the third connecting pipe (3) is connected with a working chamber (4), the working chamber (4) is communicated with the third connecting pipe (3), the side surfaces of the first connecting pipe (1) and the third connecting pipe (3) are fixedly connected with mounting frames (6), one opposite side of the two mounting frames (6) is fixedly connected with a fixed sleeve (7), the fixed sleeve (7) is connected with a rotating mechanism, the rotating mechanism is connected with a sliding mechanism, and the inner side wall of the working chamber (4) is connected with a transmission mechanism and a resisting mechanism.

2. The dual valve capable of preventing backflow according to claim 1, wherein the rotating mechanism comprises a same sliding sleeve (8) fixedly connected to the side surfaces of two fixed sleeves (7), a rotating handle (10) is fixedly connected to the top of the outer side wall of the sliding sleeve (8), an inner threaded groove is formed in the inner side wall of the sliding sleeve (8), and a screw rod (9) is connected to the inner side wall of the inner threaded groove in a threaded manner.

3. The dual valve capable of preventing backflow according to claim 2, wherein the sliding mechanism comprises a pressure-resisting valve (5) fixedly connected to the end of the screw rod (9), a side-fixing-connecting-plate-resisting plate of the pressure-resisting valve is supported, a mounting opening is formed in the side surface of the second connecting pipe (2), a sealing ring is fixedly connected to the inner side wall of the mounting opening, the inner side wall of the sealing ring is slidably connected to the pressure-resisting valve (5), and the inner side wall of the pressure-resisting valve (5) is slidably connected to the inner side wall of the second connecting pipe (2).

4. The dual valve capable of preventing backflow according to claim 1, wherein the transmission mechanism comprises two fixed blocks (14) fixedly connected to the side walls of the working chamber (4), a connecting rod (12) is fixedly connected between the fixed blocks (14) and the inner side walls of the working chamber (4), a sliding block (11) is slidably sleeved on the outer side wall of the connecting rod (12), a spring (13) is sleeved on the outer side wall of the connecting rod (12), and two ends of the spring (13) are respectively fixedly connected with the fixed blocks (14) and the sliding block (11).

5. A dual valve for backflow prevention according to claim 4, wherein the same air bag (15) is fixedly connected to the opposite side of the two sliding blocks (11), and the side surface of the air bag (15) abuts against the side wall of the third connecting pipe (3).

6. The backflow-preventing dual valve as claimed in claim 4, wherein the sliding block (11) is provided with a sliding opening inside, and the inner side wall of the sliding opening is slidably connected with the outer side wall of the connecting rod (12).