CN203286036U

CN203286036U - Novel ball valve

Info

Publication number: CN203286036U
Application number: CN2013202849108U
Authority: CN
Inventors: 徐晓冰
Original assignee: SHENGZHOU LONGWEI VALVE CO Ltd
Current assignee: SHENGZHOU LONGWEI VALVE CO Ltd
Priority date: 2013-05-21
Filing date: 2013-05-21
Publication date: 2013-11-13
Anticipated expiration: 2023-05-21

Abstract

The utility model provides a novel ball valve which comprises a valve body, an upper bearing connected to the valve body, and a valve rod fixedly arranged on the upper bearing, wherein the valve rod adopts three valve blades; one ends of the three valve blades are fixed at the top center of the upper bearing. The novel ball valve has the advantages of simple structure, stable structure, convenience in use, high sealability and the like.

Description

A kind of ball valve

Technical field

The utility model relates to valve field, is specifically related to a kind of ball valve.

Background technique

Ball valve, be defined as in standard GB/T21465-2008 " valve term ": open-shut device is driven by valve rod, and the valve that rotates around the axis of valve rod.Ball valve was come out the 1950's, and along with the develop rapidly of science and technology, updating of production technology and product structure, in the 40 short years, developed rapidly and become a kind of main valve class.In the west flourishing country of industry, the use of ball valve is constantly risen year by year, in China, ball valve is widely used in industries such as petroleum refining, long-distance transport pipes, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, iron and steel, occupies very important status in national economy.It has the action of 90-degree rotation, and faucet body is spheroid, manhole or passage is arranged by its axis.Ball valve is mainly used to make cut-out, distributes and change medium in pipeline flow direction, it only need to just can be closed tightly with the operation of 90-degree rotation and very little moment of rotation.The ball valve optimum is made switch, cut-off valve uses, but recent development has become to make it to have the use of throttling and control flow with ball valve design, as the V-type ball valve.The main feature of ball valve is compact structure own, simple in structure, easy to maintenance, sealing surface and the sphere closed state of being everlasting, be difficult for by the medium erosion easy operating and maintenance, be applicable to the general work media such as water, solvent, acid and rock gas, but also be applicable to the abominable medium of operating conditions,, as oxygen, hydrogen peroxide, methane and ethene etc., in every profession and trade, be widely used.Ball valve body can be whole, can be also knockdown.Although ball valve has obtained great development, but still exist the some shortcomings part, the valve rod of existing ball valve is along with the passing of service time is easily loose, thereby causes opening and closing not convenient, and existing sealing property of ball valves is not strong, easily produces the problems such as leakage of medium.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of ball valve, simple in structure, can make the structure of valve rod more stable, avoid valve rod loose along with the passing of service time, make the opening and closing operation of valve rod more convenient, can greatly improve the sealing of medium transport, avoid medium to produce the situation of leaking in the process of carrying.

For solving above-mentioned existing technical problem, the utility model adopts following scheme: a kind of ball valve, comprise valve body, transfer at the upper bearing (metal) on valve body, fixedly be located at the valve rod on upper bearing (metal), described valve rod adopts three valve discs, and an end of described three valve discs is fixed in the center of top of upper bearing (metal).

As preferably, described three valve discs are vertically set up, thereby make the opening and closing operation of valve rod more convenient.

As preferably, described three valve disc equal and opposite in directions, structure is identical, thereby makes manufacturing easier.

As preferably, the rear and front end of described valve body all is connected with leather pipe joint, thereby has improved the sealing of medium transport, has avoided medium to produce the situation of leaking in the process of carrying.

Beneficial effect:

A kind of ball valve that the utility model adopts technique scheme to provide, simple in structure, can make the structure of valve rod more stable, avoided valve rod loose along with the passing of service time, make the opening and closing operation of valve rod more convenient, can greatly improve the sealing of medium transport, avoid medium to produce the situation of leaking in the process of carrying.

Description of drawings

Fig. 1 is structural representation of the present utility model.

In figure, valve body 1, upper bearing (metal) 2, valve rod 3, valve disc 31, leather pipe joint 4.

Embodiment

As shown in Figure 1, a kind of ball valve, comprise valve body 1, transfer at the upper bearing (metal) 2 on valve body 1, fixedly be located at the valve rod 3 on upper bearing (metal) 2, described valve rod 3 adopts three valve discs 31, one end of described three valve discs 31 is fixed in the center of top of upper bearing (metal) 2, and described three valve discs 31 are vertically set up, described three valve disc 31 equal and opposite in directions, structure is identical, and the rear and front end of described valve body 1 all is connected with leather pipe joint 4.

Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

, although this paper has more used the terms such as valve body 1, upper bearing (metal) 2, valve rod 3, valve disc 31, leather pipe joint 4, do not get rid of the possibility of using other term.Using these terms is only in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.

Claims

1. ball valve, comprise valve body (1), transfer at the upper bearing (metal) (2) on valve body (1), fixedly be located at the valve rod (3) on upper bearing (metal) (2), it is characterized in that: described valve rod (3) adopts three valve discs (31), and an end of described three valve discs (31) is fixed in the center of top of upper bearing (metal) (2).

2. a kind of ball valve according to claim 1, it is characterized in that: described three valve discs (31) are vertically set up.

3. a kind of ball valve according to claim 1, it is characterized in that: described three valve discs (31) equal and opposite in direction, structure is identical.

4. a kind of ball valve according to claim 1, it is characterized in that: the rear and front end of described valve body (1) all is connected with leather pipe joint (4).