CN210218773U

CN210218773U - Standard plastic valve

Info

Publication number: CN210218773U
Application number: CN201921248218.3U
Authority: CN
Inventors: Songyue Lin; 林松月
Original assignee: Beijing Matsuda Nomo Science And Technology Co Ltd
Current assignee: Beijing Matsuda Nomo Science And Technology Co Ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-03-31
Anticipated expiration: 2029-08-02

Abstract

The embodiment of the application discloses a standard type plastic valve, which comprises a valve body; two sides of the valve body are respectively provided with an end pipe communicated with the valve body; a valve core is arranged in the inner cavity of the valve body; the valve core is arranged in the valve seat; a valve seat sealing ring is arranged on the contact surface of the valve seat and the valve core; a valve rod is connected above the valve core; the valve rod is rotatably connected with the valve body; the upper end of the valve rod is connected with an operation cap arranged at the top end of the valve body; a plurality of valve rod sealing rings are arranged between the valve rod and the inner wall of the valve body; an operation cap sealing ring is arranged between the operation cap and the valve body; the valve is made of plastic materials. The utility model provides a valve simple structure, easy installation and with low costs, when increasing valve life, the intensity and the leakproofness homoenergetic of product obtain guaranteeing, more are fit for the production of big-and-middle-sized valve enterprise.

Description

Standard plastic valve

Technical Field

The utility model relates to the technical field of valves, in particular to a standard type plastic valve for natural gas and multiple liquid.

Background

The pipe valves can be classified into common carbon steel valves, alloy steel valves, nonferrous metal valves, PE polyethylene plastic valves, and the like according to material classification. With the development of science and technology, the requirements on the service life of valves in natural gas and various liquid conveying pipelines are continuously improved, and the traditional steel valves and alloy steel valves are easily scrapped due to corrosion after being used for a period of time, so that the maintenance and replacement costs are greatly increased; the nonferrous metal valve has long service life, but the material cost is very expensive. Therefore, in recent years, PE plastic pipes are increasingly used in natural gas and liquid transportation pipelines because they are not easily corroded and have low cost.

The existing PE valve is mainly of a spherical sealing structure, the requirement on manufacturing size is high due to the adoption of a spherical surface sealing mode, the processing difficulty of a plastic sphere is quite high, the manufacturing cost is increased, the rejection rate is high, particularly for large and medium valves, a rubber sealing gasket is often arranged outside the sphere to guarantee the sealing effect, the rubber sealing gasket has the defects of easy aging, easy pulling and the like in the long-term use process, and the overall service life of the valve is greatly shortened.

SUMMERY OF THE UTILITY MODEL

The application provides a standard type plastic valve to solve the problem that conventional material valve life is low among the prior art, and the valve structure sealing performance that this application provided is good, and the simple easy manufacturing of structure, installation have low-cost characteristics.

The application provides a standard type plastic valve, which comprises a valve body;

two sides of the valve body are respectively provided with an end pipe communicated with the valve body;

a valve core is arranged in the inner cavity of the valve body; the valve core is arranged in the valve seat; a valve seat sealing ring is arranged on the contact surface of the valve seat and the valve core;

a valve rod is connected above the valve core; the valve rod is rotatably connected with the valve body; the upper end of the valve rod is connected with an operation cap arranged at the top end of the valve body;

a plurality of valve rod sealing rings are arranged between the valve rod and the inner wall of the valve body;

an operation cap sealing ring is arranged between the operation cap and the valve body;

the valve is made of plastic materials.

Optionally, a dispersion port is further arranged on the end pipe at a position close to the valve body, and the dispersion port is in a closed state.

Optionally, the valve further comprises a plurality of reinforcing ribs; the two ends of the reinforcing ribs are respectively fixedly connected with the end pipe and the valve body, and the plurality of reinforcing ribs are uniformly distributed along the circumferential direction of the end pipe.

Optionally, a placing seat is arranged at the bottom end of the valve body.

Optionally, the outer diameter of the valve rod is 80% of the outer diameter of the top end of the valve body.

Optionally, the plastic material is PE plastic.

The beneficial effect of this application:

firstly, the service life of the valve is prolonged and can be the same as that of a pipeline;

secondly, the construction difficulty is reduced, the construction efficiency is improved, the installation cost is saved, and the failure rate is reduced;

thirdly, the number of the constituent elements is reduced, and the space of the valve Regula in the pipeline can be relatively reduced;

fourthly, the sealing is more thorough, the processing difficulty is low, and the valve is more suitable for production and use of large and medium valves;

fifthly, a plurality of reinforcing ribs are additionally arranged on the end pipe, so that the strength of the product is improved;

sixthly, the valve rod handle is lengthened, the contact surface is enlarged, and the bottom of the full-size inner valve rod is sealed and added with a sealing gasket.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.

FIG. 1 is a schematic view of a standard plastic valve according to the present application;

the valve comprises a valve body 1, a valve core 2, a valve seat 3, a valve core 4, a valve seat 5, a valve seat sealing ring 6, a valve rod 7, a valve rod sealing ring 8, an operating cap sealing ring 9, an operating cap 10, a dispersing port 11, a reinforcing rib 12 and a mounting seat.

Detailed Description

Referring to fig. 1, a schematic structural diagram of a standard plastic valve according to the present application is shown;

as can be seen from fig. 1, the embodiment of the present application provides a standard type plastic valve, which includes a valve body 1;

two sides of the valve body 1 are respectively provided with an end pipe 2 communicated with the valve body 1; when in use, the two sides of the end pipe 2 are respectively connected with the pipelines at the two sides;

a valve core 3 is arranged in the inner cavity of the valve body 1; the valve core 3 is arranged in the valve seat 4; a valve seat sealing ring 5 is arranged on the contact surface of the valve seat 4 and the valve core 3; the valve core 3 and the valve seat 4 are matched to provide a valve opening and closing function, specifically, the valve core 3 moves relative to the valve seat 4 through rotation of the valve core 3, so that a contact surface is changed, the end pipes 2 on two sides are in a communicated or non-communicated state, and the valve seat sealing ring 5 can ensure tightness in the non-communicated state.

A valve rod 6 is connected above the valve core 3, and the valve core 3 can be driven to rotate by rotating the valve rod 6, so that the opening and closing operation of the valve is completed; the valve rod 6 is rotatably connected with the valve body 1, and in general, the rotation angle of the valve is 90 degrees, that is, when the valve rotates to 0 degree or 90 degrees, a limiting device (for example, a limiting block, not shown in the figure) for preventing the valve rod 6 from continuously rotating is correspondingly arranged on the valve body 1; the upper end of the valve rod 6 is connected with an operation cap 9 mounted on the top end of the valve body 1, and the operation cap can be provided with various structures, which are not limited in this example, and the operation cap can be suitable for manual operation or mechanical auxiliary operation.

A plurality of valve rod sealing rings 7 are arranged between the valve rod 6 and the inner wall of the valve body 1; the valve rod sealing rings 7 can prevent natural gas or liquid from leaking outwards along the direction of the valve rod 6, and a plurality of valve rod sealing rings 7 are arranged to ensure a higher sealing effect.

An operation cap sealing ring 8 is arranged between the operation cap 9 and the valve body 1, so that external dust, sundries and the like can be prevented from entering the valve.

The valve is made of plastic materials. The plastic material has the characteristics of light weight, acid and alkali resistance, lower cost and the like, and is easy to form. Preferably, the plastic material can be PE plastic, and has high chemical stability; in addition, special rubber materials can be selected to replace common plastic materials, and excellent performance can be achieved.

Optionally, a diffusing port 10 is further disposed on the end pipe 2, which is close to the valve body 1, the diffusing port 10 is in a closed state, and the diffusing port 10 is mainly used for modifying the valve for use, for example, the diffusing pipe may be installed above the diffusing port to provide a diffusing effect, and may be further communicated with other pipelines, or additionally installed with a pressure gauge or other instruments and meters.

Optionally, the valve further comprises a plurality of reinforcing ribs 11; the both ends of strengthening rib 11 respectively with end pipe 2 valve body 1 fixed connection, and a plurality of strengthening rib 11 is followed the circumference of end pipe 2 is evenly arranged, sets up strengthening rib 11 and can effectively increase the structural strength of valve.

Optionally, the bottom end of the valve body 1 is provided with a placing seat 12, and when the valve is arranged on the ground, the placing seat 12 can prevent the bottom surface of the valve body from being abraded and scratched, and the valve can also be stably placed.

Optionally, the outer diameter of the valve rod 6 is 80% of the outer diameter of the top end of the valve body 1, so that the contact area between the valve rod and the valve body is increased, the matching degree between sealing gaskets is increased, the sealing effect of the sealing gaskets is more easily exerted, and the sealing effect is improved; in addition, the valve stem handle can be lengthened, enlarged and the like, and is not limited herein.

According to the technical scheme, the application provides a standard plastic valve, which comprises a valve body; two sides of the valve body are respectively provided with an end pipe communicated with the valve body; a valve core is arranged in the inner cavity of the valve body; the valve core is arranged in the valve seat; a valve seat sealing ring is arranged on the contact surface of the valve seat and the valve core; a valve rod is connected above the valve core; the valve rod is rotatably connected with the valve body; the upper end of the valve rod is connected with an operation cap arranged at the top end of the valve body; a plurality of valve rod sealing rings are arranged between the valve rod and the inner wall of the valve body; an operation cap sealing ring is arranged between the operation cap and the valve body; the valve is made of plastic materials. The utility model provides a valve simple structure, easy installation and with low costs, when increasing valve life, the intensity and the leakproofness homoenergetic of product obtain guaranteeing, more are fit for the production of big-and-middle-sized valve enterprise.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A standard type plastic valve, characterized by comprising a valve body (1);

two sides of the valve body (1) are respectively provided with an end pipe (2) communicated with the valve body (1);

a valve core (3) is arranged in an inner cavity of the valve body (1); the valve core (3) is arranged in the valve seat (4); a valve seat sealing ring (5) is arranged on the contact surface of the valve seat (4) and the valve core (3);

a valve rod (6) is connected above the valve core (3); the valve rod (6) is rotationally connected with the valve body (1); the upper end of the valve rod (6) is connected with an operation cap (9) arranged at the top end of the valve body (1);

a plurality of valve rod sealing rings (7) are arranged between the valve rod (6) and the inner wall of the valve body (1);

an operation cap sealing ring (8) is arranged between the operation cap (9) and the valve body (1);

the valve is made of plastic materials;

the valve further comprises a plurality of reinforcing ribs (11); two ends of the reinforcing ribs (11) are respectively fixedly connected with the end pipe (2) and the valve body (1), and the plurality of reinforcing ribs (11) are uniformly distributed along the circumferential direction of the end pipe (2);

the bottom end of the valve body (1) is provided with a placing seat (12);

the outer diameter of the valve rod (6) is 80% of the outer diameter of the top end of the valve body (1).

2. A modular plastic valve as claimed in claim 1, characterised in that said end pipe (2) is provided with a dispensing opening (10) adjacent to said valve body (1), said dispensing opening (10) being closed.

3. A modular plastic valve as claimed in claim 1, wherein said plastic material is PE plastic.