CN203477348U

CN203477348U - Rubber-hung butterfly valve capable of being accurately controlled

Info

Publication number: CN203477348U
Application number: CN201320488427.1U
Authority: CN
Inventors: 王志喜; 刘浩
Original assignee: TIANJIN LEICESTER VALVE Co Ltd
Current assignee: TIANJIN LEICESTER VALVE Co Ltd
Priority date: 2013-08-09
Filing date: 2013-08-09
Publication date: 2014-03-12
Anticipated expiration: 2023-08-09

Abstract

The utility model relates to a rubber-hung butterfly valve capable of being accurately controlled. A valve seat is of a rubber-hung structure, the valve seat is formed by integrated pouring and molding in a valve body in a coaxial mode, flanges are arranged at the two ends of the valve seat in the axial direction, and two grooves are formed in the surface of each flange in the radial direction; the upper end, extending out of the valve body, of a valve rod is provided with a control handle, the upper end face of the valve rod is designed to be circular-bead rectangular and is flush with the upper end face of the control handle, long edges of the circular-bead rectangle at the upper end of the valve rod and a valve plate fixedly arranged on the lower portion of the valve rod are the same in direction, and a fine regulation bolt used for regulating the radial position of the valve plate is arranged on the lower portion of the valve plate. According to the rubber-hung butterfly valve, the valve rod is matched with a lock disk, and therefore accurate control over opening angles is facilitated; the rubber-hung butterfly valve is simple in structure, easy to control and capable of helping operators to master flow conditions more easily; in addition, installation of valve components is simple, and the service life is long.

Description

The kiss-coating butterfly valve of accurately controlling

Technical field

The utility model belongs to valve field, especially a kind of kiss-coating butterfly valve of accurate control.

Background technique

Use at engineering pipeline transportation art valve is very extensive, the basic structure of valve is co-axial seal setting-in valve seat in valve body now, valve rod is radially installed on valve body, on valve rod in valve body, be fixedly mounted with valve plate, valve plate coordinates with valve base sealing, thereby valve plate rotation or movement under the driving of valve rod open and close the runner in valve seat; Valve body is shaped with the flange plate being connected with pipeline outward.

For needs, accurately control switching, and the accessory of valve is more, installs loaded down with trivial detailsly, and sign arrow and dial easily damage, and working life is shorter.

Model utility content

The purpose of this utility model is to overcome the deficiencies in the prior art part, and a kind of kiss-coating butterfly valve of accurate control of reasonable in design, simple in structure, easy to operate, long service life is provided.

The utility model solves its technical problem and takes following technological scheme to realize:

A kiss-coating butterfly valve for accurate control, comprises valve body, valve seat, valve rod, valve plate and flanged plate, and in valve outer wall both sides, equal symmetry is shaped with flanged plate, on the valve body between flanged plate, is shaped with stiffening rib; Valve block internal diameter is to valve rod is installed, co-axial seal setting-in valve seat in valve body, on valve rod in valve seat, be fixed with valve plate, it is characterized in that: described valve seat is kiss-coating structure, valve seat coaxial one moulding by casting in valve body is made, and the axial two ends of this valve seat are all shaped with flanging, and this flanging radial surface interval is shaped with two grooves; Valve rod upper end outside stretching out valve body is provided with a Joystick, valve rod upper-end surface is made as the long rectangle of fillet and flushes with Joystick upper-end surface, the long limit of the long rectangle of fillet of valve rod upper end is identical with the valve plate direction that is packed in stem lower portion, and valve plate bottom is provided with the radial position that a trimming bolt regulates valve plate.

And, on the valve body between described Joystick and valve body, being fixed with a lock collar, this lock collar one interval, side outer is shaped with two catch, and on the lock collar outer between these two catch, uniform interval is shaped with a plurality of draw-in grooves; Described handle, at its lower end is hinged with a spring sheet, and the position of the corresponding draw-in groove in this spring sheet lower end is shaped with a projection.

And the middle part, valve plate surface of described valve rod both sides all symmetry is shaped with a stiffening rib.

Advantage of the present utility model and good effect are:

1, the utility model is simple in structure, adopts valve rod end construction to replace sign arrow, not fragile, and the integrative-structure of valve rod own can guarantee to indicate rotation angle more accurate, and simplified structure accessory, simplifies installation steps.

2, the default closure of lock collar of the present utility model, small flow, intermediate flow and completely a plurality of gears such as unlatching, and handle position correspondence corresponding to gear made to draw-in groove in lock collar, standard more when operator operate, is convenient to accurately manage the flow situation of pipeline.

3, the utility model valve plate and valve rod are fixedly mounted with and can regulate by trimming bolt, guarantee that the indication of valve plate and valve rod end is accurate in the same way, and indication is accurate, thereby guarantee that the angle control accuracy of valve is high.

4, the utility model adopts the kiss-coating valve seat of moulding by casting, valve seat two ends are all shaped with the flanging affixed with valve body, can effectively guarantee axial stability and the sealed precision of valve seat, avoid because of the long-term loosening problem of valve seat that causes of using, extend valve working life.

5, valve rod of the present utility model coordinates with lock collar, is convenient to accurately control opening angle, simple in structure, easily controls, and helps operator to be more prone to grasp flow situation, and simple in structure, and the installation of valve part is simple, long service life.

Accompanying drawing explanation

Fig. 1 is structural front view of the present utility model;

Fig. 2 is the left view (partly cuing open) of Fig. 1;

Fig. 3 is the plan view of Fig. 1.

Embodiment

Below in conjunction with accompanying drawing and by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.

A kiss-coating butterfly valve for accurate control, comprises valve body 8, valve seat 11, valve rod 6, valve plate 12 and flanged plate 9, and in valve outer wall both sides, equal symmetry is shaped with flanged plate, is shaped with stiffening rib 10 on the valve body between flanged plate; Valve block internal diameter is to valve rod is installed, and co-axial seal setting-in valve seat in valve body, is fixed with valve plate on the valve rod in valve seat, thus the keying of this valve plate rotation control valve under the twisting force of valve rod.

Innovative point of the present utility model is:

Described valve seat is kiss-coating structure, and valve seat coaxial one moulding by casting in valve body is made, and the axial two ends of this valve seat are all shaped with flanging, and this flanging radial surface interval is shaped with two grooves, guarantees that valve seat cannot move axially in valve body.

Valve rod upper end outside stretching out valve body is provided with a Joystick 1, valve rod upper-end surface is made as the long rectangle of fillet and flushes with Joystick upper-end surface, the long limit of the long rectangle of fillet of valve rod upper end is identical with the valve plate direction that is packed in stem lower portion, valve plate bottom is provided with a trimming bolt 13 and regulates the radial position of valve plate to make valve plate and valve rod upper end direction indication keep precision consistent, and valve rod itself replaces sign arrow indication valve opening state; On valve body between Joystick and valve body, be fixed with a lock collar 7, this lock collar one interval, side outer is shaped with two catch 5, and on the lock collar outer between these two catch, uniform interval is shaped with a plurality of draw-in grooves 4, and handle is rotation within the scope of draw-in groove.

Opening state for accurate control valve, several gears of the corresponding valve in a plurality of draw-in grooves position of described lock collar, handle, at its lower end is hinged with a spring sheet 2, the position of the corresponding draw-in groove in this spring sheet lower end is shaped with a projection 3, this projection is installed in draw-in groove angle that can locking handle, thereby need to first compress spring sheet during adjusting, make projection depart from draw-in groove, thus then the opening degree of handle with sleeve regulating valve.

In order to strengthen the intensity of valve plate, middle part, the valve plate surface of described valve rod both sides all symmetry is shaped with a stiffening rib.

Although disclose for the purpose of illustration embodiment of the present utility model and accompanying drawing, but it will be appreciated by those skilled in the art that: within not departing from the spirit and scope of the utility model and claims, various replacements, variation and modification are all possible, therefore, scope of the present utility model is not limited to embodiment and the disclosed content of accompanying drawing.

Claims

1. a kiss-coating butterfly valve of accurately controlling, comprises valve body, valve seat, valve rod, valve plate and flanged plate, and in valve outer wall both sides, equal symmetry is shaped with flanged plate, on the valve body between flanged plate, is shaped with stiffening rib; Valve block internal diameter is to valve rod is installed, co-axial seal setting-in valve seat in valve body, on valve rod in valve seat, be fixed with valve plate, it is characterized in that: described valve seat is kiss-coating structure, valve seat coaxial one moulding by casting in valve body is made, and the axial two ends of this valve seat are all shaped with flanging, and this flanging radial surface interval is shaped with two grooves; Valve rod upper end outside stretching out valve body is provided with a Joystick, valve rod upper-end surface is made as the long rectangle of fillet and flushes with Joystick upper-end surface, the long limit of the long rectangle of fillet of valve rod upper end is identical with the valve plate direction that is packed in stem lower portion, and valve plate bottom is provided with the radial position that a trimming bolt regulates valve plate.

2. the kiss-coating butterfly valve of accurate control according to claim 1, it is characterized in that: on the valve body between described Joystick and valve body, be fixed with a lock collar, this lock collar one interval, side outer is shaped with two catch, and on the lock collar outer between these two catch, uniform interval is shaped with a plurality of draw-in grooves; Described handle, at its lower end is hinged with a spring sheet, and the position of the corresponding draw-in groove in this spring sheet lower end is shaped with a projection.

3. the kiss-coating butterfly valve of accurate control according to claim 1, is characterized in that: the middle part, valve plate surface of described valve rod both sides all symmetry is shaped with a stiffening rib.