CN212155953U

CN212155953U - Anti-return valve convenient to be connected with pipeline

Info

Publication number: CN212155953U
Application number: CN202020641455.2U
Authority: CN
Inventors: 刘步明; 刘政金; 臧千秋
Original assignee: Yancheng Ourun Petrochemical Equipment Manufacturing Co ltd
Current assignee: Yancheng Ourun Petrochemical Equipment Manufacturing Co ltd
Priority date: 2020-04-25
Filing date: 2020-04-25
Publication date: 2020-12-15
Anticipated expiration: 2030-04-25

Abstract

The utility model discloses an anti-return valve convenient to be connected with pipeline, including valve body, connecting pipe and activity ring, the left and right sides of valve body all is provided with the connector, and the inside of connector is provided with the connecting pipe, and the spout has been seted up at the middle part of connecting pipe moreover, the inside threaded connection of connecting pipe has the connecting plate, and the surface of connecting plate bonds and has the rubber slab to the water inlet has all been seted up at the middle part of rubber slab and connecting plate, the middle part outside nestification of connecting pipe has the activity ring, and all screw threads all around of activity ring run through and install fixing bolt to fixing bolt runs through the spout. This anti-return valve convenient to be connected with the pipeline is provided with fixing bolt and connecting plate, and at the in-process that uses, fixing bolt can effectually carry out the centre gripping to the pipeline of different external diameters and fix to make the rubber slab contact of feeling pipeline and connecting plate surface even, thereby the installation of different diameter pipelines of quick completion increases the convenience of device.

Description

Anti-return valve convenient to be connected with pipeline

Technical Field

The utility model relates to the technical field of valves, specifically be an anti-return valve convenient to be connected with the pipeline.

Background

The backflow prevention valve is a valve for preventing backflow of flow, and comprises a one-way valve, a check valve and the like, however, the existing backflow prevention valve has certain defects and deficiencies in the use process;

the existing anti-backflow valve needs to be connected with a pipeline when in use, however, the existing connection mode is generally divided into flange connection, threaded connection, hot melt connection and the like, however, the connection mode has certain requirements on the diameter of the pipeline, when the outer diameter of the connected pipeline is too large or too small, the diameter connection cannot be achieved, a connector needs to be added or the pipeline needs to be replaced, and the existing anti-backflow valve is inconvenient to use and is inconvenient to connect with various pipelines.

We have therefore proposed a back-flow prevention valve which facilitates connection to a pipe in order to solve the problems set out above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-return valve convenient to be connected with the pipeline to solve the inconvenient problem of being connected with various pipelines of anti-return valve on the existing market that above-mentioned background art provided.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an anti-return valve convenient to be connected with pipeline, includes valve body, connecting pipe and activity ring, the left and right sides of valve body all is provided with the connector, and the inside of connector is provided with the connecting pipe to the both ends surface of connecting pipe is provided with first external screw thread and second external screw thread respectively, and the spout has been seted up at the middle part of connecting pipe moreover, the inside threaded connection of connecting pipe has the connecting plate, and the surface bonding of connecting plate has the rubber slab to the water inlet has all been seted up at the middle part of rubber slab and connecting plate, the middle part outside nestification of connecting pipe has the activity ring, and the equal screw thread all around of activity ring runs through and installs fixing bolt to fixing bolt.

Preferably, the sliding grooves are arranged at equal angles with respect to the center line of the connecting pipe, and the number of the sliding grooves is 4.

Preferably, the center lines of the connecting plate, the rubber plate and the connecting pipe are overlapped, and the connecting plate and the rubber plate are arranged in the connecting pipe.

Preferably, the inner diameter of the movable ring is in clearance fit with the outer diameter of the middle part of the connecting pipe, the periphery of the movable ring is provided with fixing bolts at equal angles, and the central line of each fixing bolt is perpendicular to the central line of the corresponding movable ring.

Preferably, the outer side of the movable ring is provided with an adjusting ring, and the center line of the movable ring and the center line of the adjusting ring are overlapped.

Preferably, the adjusting ring is installed on the outer side of the second external thread in a threaded manner, and a groove is formed in the inner side of the adjusting ring.

Compared with the prior art, the beneficial effects of the utility model are that: the backflow prevention valve is convenient to be connected with a pipeline;

1. the fixing bolt and the connecting plate are arranged, and in the using process, the fixing bolt can effectively clamp and fix the pipelines with different outer diameters, so that the pipelines are in contact with the rubber plate on the outer surface of the connecting plate, the installation of the pipelines with different diameters is rapidly completed, and the convenience of the device is improved;

2. be provided with activity ring and adjustable ring, at the in-process that uses, through rotatory adjustable ring to make the adjustable ring rotate in the second external screw thread outside, thereby move about under the screw motion, make the adjustable ring promote the activity ring and remove, thereby make the activity ring drive the pipeline of connecting through fixing bolt and remove, further increased the leakproofness between pipeline and the rubber slab, avoid leaking.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the connecting tube of the present invention;

FIG. 3 is a schematic view of the connecting pipe of the present invention;

fig. 4 is a schematic side view of the connecting pipe of the present invention.

In the figure: 1. a valve body; 2. a connector; 3. a connecting pipe; 4. a first external thread; 5. a second external thread; 6. a chute; 7. a connecting plate; 8. a rubber plate; 9. a water inlet; 10. a movable ring; 11. fixing the bolt; 12. an adjusting ring; 13. and (4) a groove.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a backflow prevention valve convenient for being connected with a pipeline comprises a valve body 1, a connector 2, a connecting pipe 3, first external threads 4, second external threads 5, a chute 6, a connecting plate 7, a rubber plate 8, a water inlet 9, a movable ring 10, a fixing bolt 11, an adjusting ring 12 and a groove 13, wherein the left side and the right side of the valve body 1 are respectively provided with the connector 2, the connecting pipe 3 is arranged inside the connector 2, the outer surfaces of the two ends of the connecting pipe 3 are respectively provided with the first external threads 4 and the second external threads 5, the middle part of the connecting pipe 3 is provided with the chute 6, the internal threads of the connecting pipe 3 are connected with the connecting plate 7, the surface of the connecting plate 7 is bonded with the rubber plate 8, the middle parts of the rubber plate 8 and the connecting plate 7 are respectively provided with the water inlet 9, the outer side of the middle part of the connecting pipe 3 is, and the fixing bolt 11 penetrates the slide groove 6.

The chutes 6 are arranged at equal angles relative to the central line of the connecting pipe 3, and the chutes 6 are 4 in number, so that the fixing bolt 11 is guided conveniently, the movement of the fixing bolt 11 is limited, and meanwhile, the fixing bolt 11 is convenient to install.

The central lines of the connecting plate 7, the rubber plate 8 and the connecting pipe 3 coincide with each other, and the connecting plate 7 and the rubber plate 8 are both arranged inside the connecting pipe 3, and the alignment of the subsequent pipeline and the water inlet 9 is ensured by the design of the structure, so that the normal flow of fluid is ensured.

The internal diameter of activity ring 10 is clearance fit with connecting pipe 3 middle part external diameter, and activity ring 10 be provided with fixing bolt 11 all around the equal angle to fixing bolt 11's central line and activity ring 10's central line mutually perpendicular, the installation and the dismantlement of the activity ring 10 of being convenient for have ensured simultaneously that fixing bolt 11 is effectual fixes the pipeline of installation.

The adjusting ring 12 is arranged on the outer side of the movable ring 10, the center line of the movable ring 10 and the center line of the adjusting ring 12 coincide with each other, and due to the design of the structure, the adjusting ring 12 can limit the movable ring 10 conveniently, and the stability of the movable ring 10 is guaranteed.

The outside at second external screw thread 5 is installed to adjustable ring 12 screw thread, and the inboard of adjustable ring 12 sets up recess 13, the design of above-mentioned structure, make when the adjustable ring 12 in rotatory second external screw thread 5 outside, adjustable ring 12 can move about under the screw motion, thereby make adjustable ring 12 promote activity ring 10 and remove, thereby make activity ring 10 pass through fixing bolt 11 and drive the pipeline removal of being connected with it, thereby increased the leakproofness between pipeline and the rubber slab 8, avoid taking place the phenomenon of leaking between rubber slab 8 and the pipeline.

The working principle is as follows: when using this anti-return valve convenient to be connected with the pipeline, firstly, as shown in fig. 1-2, insert the pipeline of required connection inside the connecting pipe 3 of valve body 1 both sides, make the tip and the rubber slab 8 of pipeline and contact, then rotate fixing bolt 11 on the activity ring 10, thereby make fixing bolt 11 carry out the centre gripping to the pipeline of being connected, thereby accomplish the fixed operation of pipeline, make the pipeline inside can pass through the water inlet 9 between connecting plate 7 and rubber slab 8 and get into in the valve body 1 through connector 2.

In the use process, as shown in fig. 2-4, the adjusting ring 12 outside the connecting pipe 3 can be rotated, so that the adjusting ring 12 rotates outside the second external thread 5, so that the adjusting ring 12 moves under the thread motion, so that the adjusting ring 12 is matched with the groove 13 to push the movable ring 10, so that the movable ring 10 moves outside the connecting pipe 3, so that the connecting pipe 3 drives the fixing bolt 11 to move, and further the fixing bolt 11 drives the pipe to move, thereby increasing the sealing performance between the pipe and the rubber plate 8 and avoiding water leakage.

To thereby carry out a series of tasks, the contents of which are not described in detail in the present specification are prior art well known to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an anti-return valve convenient to be connected with the pipeline, includes valve body (1), connecting pipe (3) and activity ring (10), its characterized in that: the left and right sides of valve body (1) all is provided with connector (2), and the inside of connector (2) is provided with connecting pipe (3) to the both ends surface of connecting pipe (3) is provided with first external screw thread (4) and second external screw thread (5) respectively, and spout (6) have been seted up at the middle part of connecting pipe (3), the internal thread connection of connecting pipe (3) has connecting plate (7), and the surface bonding of connecting plate (7) has rubber slab (8), and water inlet (9) have all been seted up at the middle part of rubber slab (8) and connecting plate (7), the middle part outside nestification of connecting pipe (3) has activity ring (10), and all screw threads all around of activity ring (10) run through and install fixing bolt (11) to fixing bolt (11) run through spout (6).

2. A backflow prevention valve for facilitating connection to a pipeline as claimed in claim 1, wherein: the sliding grooves (6) are arranged at equal angles relative to the central line of the connecting pipe (3), and the number of the sliding grooves (6) is 4.

3. A backflow prevention valve for facilitating connection to a pipeline as claimed in claim 1, wherein: the center lines of the connecting plate (7), the rubber plate (8) and the connecting pipe (3) are overlapped with each other, and the connecting plate (7) and the rubber plate (8) are arranged inside the connecting pipe (3).

4. A backflow prevention valve for facilitating connection to a pipeline as claimed in claim 1, wherein: the inner diameter of the movable ring (10) is in clearance fit with the outer diameter of the middle of the connecting pipe (3), the periphery of the movable ring (10) is provided with fixing bolts (11) at equal angles, and the center line of each fixing bolt (11) is perpendicular to the center line of the corresponding movable ring (10).

5. A backflow prevention valve for facilitating connection to a pipeline as claimed in claim 1, wherein: the outer side of the movable ring (10) is provided with an adjusting ring (12), and the center line of the movable ring (10) is overlapped with the center line of the adjusting ring (12).

6. A backflow prevention valve for facilitating connection to a pipeline as claimed in claim 5, wherein: the adjusting ring (12) is installed on the outer side of the second external thread (5) in a threaded mode, and a groove (13) is formed in the inner side of the adjusting ring (12).