CN201661757U

CN201661757U - Device for directly indicating on-off state on hand wheel of valve

Info

Publication number: CN201661757U
Application number: CN2010200468324U
Authority: CN
Inventors: 吴汉民; 周加国; 郑启成
Original assignee: JIANGSU HAOCHEN MACHINERY MANUFACTURING Co Ltd
Current assignee: JIANGSU HAOCHEN MACHINERY MANUFACTURING Co Ltd
Priority date: 2010-01-13
Filing date: 2010-01-13
Publication date: 2010-12-01
Anticipated expiration: 2020-01-13

Abstract

The utility model relates to a device for directly indicating an on-off state on a hand wheel of a valve. The device contains a rotatable hand wheel (3). The device for directly indicating the on-off state on the hand wheel of the valve is characterized in that a fixed plane spiral groove body (2) is arranged below the hand wheel (3), the upper surface of the plane spiral groove body (2) is engraved with a plurality of turns of spiral lines with equal distance from the inside to the outside, and the number of the turns of the spiral lines is at least equal to the number of the turns of the rotation of the hand wheel when the valve is closed until being completely opened; a pointer groove (7) is arranged on the hand wheel (3) along a radial direction and is used for restricting a slide block part of a pointer (5); and the bottom of the pointer (5) is supported in the spiral lines of the plane spiral groove body (2). The sliding path of the pointer (5) is controlled by the shape of the pointer groove, and the pointer (5) carries out linear reciprocating sliding in the pointer groove (7) under the rotation of the hand wheel (3) by the action of the plane spiral groove. By the utility model, the timely working state of the valve can be visually displayed, and the use of an operator is very convenient.

Description

The device of direct indicator cock state on valve handle

Technical field

The utility model relates to the structure of handwheel rotary switch stop valve, particularly a kind of on valve handle the direct device of indicator cock state.

Background technique

As everyone knows, valve has stop valve, throttle valve, gate valve, ball valve, butterfly valve or the like.Wherein, the switch of ball valve, butterfly valve is that handle drives the spheroid of ball valve by valve rod or the door rotation angle degree of butterfly valve is realized opening or closing, the normal angle of opening fully and closing is 90 °, usually the closed condition handle position is set in the position of 90 ° of valve circulating directions, is not difficult to find out that the working state of this class valve is just known by observing handle position.And stop valve, throttle valve, gate valve are because the stroke of their flap or flashboard switch is longer, all be by the handwheel rotary valve rod, come the lifting flap to reach the open and close action by the screw thread on the valve rod, generally to closing, handwheel will rotate many circles to this type of valve from full open position.So this class valve can't be judged the in good time working state of valve by the outward appearance of handwheel, has only the indication of switch motion sense of rotation on the handwheel, clockwise turns to and closes, be rotated counterclockwise to opening, when the state of emergency, operator tend to take place misoperation on the spot, cause the accident.

The utility model content

Problems such as the purpose of this utility model is, has only the indication of switch motion sense of rotation on the present handwheel for overcoming, and the accident that causes is many, thus provide a kind of on valve handle the direct device of indicator cock state.

The in good time working state of valve of the present utility model is promptly closed, is opened intermediateness, opens fully.Do not change the main structure of former valve, only between handwheel 3 and valve gap 1, do a bit to change, increase a vital part-planar spiral groove 2, handwheel 3 rotating cycles decision when planar spiral groove 2 number of turns is from inside to outside opened from being closed to fully by this valve, when rotating handwheel, pointer slides in planar spiral groove at the effect lower bottom part bulb of power.This moment, pointer was subjected to the restriction of pointer groove 7 on the handwheel again, so pointer moving linearly from inside to outside.

Of the present utility model a kind of on valve handle the direct device of indicator cock state, this device comprises a rotatable handwheel 3, it is characterized in that, the below of described handwheel 3 is provided with fixing snail cell body 2, the upper surface of this snail cell body 2 is carved with the equally spaced from inside to outside helix of some circles, the number of turns of described helix equals valve at least handwheel rotating cycle when opening fully from being closed to; Radially offer a pointer groove 7 on the described handwheel 3, be used to limit the slide section of pointer 5; The bottom of described pointer 5 be butted on snail cell body 2 helix in.The sliding path of this pointer 5 is controlled by the pointer groove shape, and under the effect at planar spiral groove under the rotation of handwheel 3, pointer 5 is made linear reciprocation and slided in pointer groove 7.

Described device also comprises a valve gap 1 and a upper valve rod 8, described handwheel 3 and valve gap 1 coaxial being arranged on the upper valve rod 8; Wherein, described valve gap 1 upper fixed has snail cell body 2.

As an improvement doing invention, described pointer groove 7 is " protruding " font and on handwheel 3, described pointer 5 is " ten " font accordingly, and this pointer 5 is nested in this pointer groove 7.

As another improvement of the present invention, the upper surface of described handwheel 3 is equipped with transparent cover plate 6, the lower surface of described handwheel 3 offers groove, described snail cell body 2 covers in this groove, the top of this groove also is equipped with pointer supporting plate 4, offer groove corresponding to the pointer groove 7 on the handwheel 3 on this pointer supporting plate 4, be used for pointer 5 is further located.

Described transparent cover plate 6 upper surfaces and the inside and outside two ends that are positioned at pointer groove 7 also respectively mark about and the tick lables opened; Described transparent cover plate 6 upper surfaces also mark the handwheel sense of rotation sign that opens or closes.

Advantage of the present utility model is, can show the in good time working state of valve intuitively, and the operator uses very convenient.Particularly use can effectively prevent the accident that operator's misoperation causes on the pipeline of danger medium.

Description of drawings

Fig. 1 is the assembling schematic representation of the utility model embodiment full-gear;

Wherein, Fig. 1 a is an elevation cross-sectional view, and Fig. 1 b is the profile plan view;

Fig. 2 is the assembling schematic representation of the utility model embodiment closed condition;

Wherein, Fig. 2 a is an elevation cross-sectional view, and Fig. 2 b is the profile plan view;

Fig. 3 is the assembling schematic representation of this type of valve wide open state before not inventing;

Wherein, Fig. 3 a is an elevation cross-sectional view, and Fig. 3 b is the profile plan view;

Fig. 4 is valve gap modification figure of the present utility model.Wherein Fig. 4 a is its elevation cross-sectional view, and Fig. 4 b is a plan view;

Fig. 5 is planar spiral groove figure of the present utility model.Wherein Fig. 5 a is its elevation cross-sectional view, and Fig. 5 b is a plan view;

Fig. 6 is handwheel modification figure of the present utility model.Wherein Fig. 6 a is its elevation cross-sectional view (7 are the profile line of pointer groove 7 among the figure), and Fig. 6 b is plan view (7 are the profile line of pointer groove 7 among the figure); Fig. 6 c is the sectional drawing of convex pointer groove 7;

Fig. 7 is pointer supporting plate figure of the present utility model.Wherein Fig. 7 a is its elevation cross-sectional view, and Fig. 7 b is a plan view; 7 is the lower whorl profile of pointer groove 7 among the figure;

Fig. 8 is pointer figure of the present utility model, and wherein Fig. 8 a is its front view, and Fig. 8 b is a plan view;

Fig. 9 is transparent cover plate figure of the present utility model, and wherein Fig. 9 a is its elevation cross-sectional view, and Fig. 9 b is a plan view.

The accompanying drawing sign

1, valve gap 2, snail cell body 3, handwheel

4, pointer supporting plate 5, pointer 6, transparent cover plate

7, pointer groove 8, upper valve rod

Embodiment

Further specify a kind of embodiment of the present utility model below in conjunction with accompanying drawing.

Accompanying drawing 3 is assembly structure schematic representation of a kind of bellows stop valve before the present utility model, its flap open and close is by the realization that moves up and down in threaded stem of flap link internal thread, and upper valve rod except the rotation and not have between the valve gap about displacement, thereby do not have upper and lower displacement between handwheel and the valve gap, so do not see the real-time working state of this valve in appearance at all yet.

Accompanying drawing 1 is the assembling schematic representation of the utility model embodiment full-gear;

Accompanying drawing 2 is assembling schematic representation of the utility model embodiment closed condition;

Accompanying drawing 4～accompanying drawing 9 is parts drawings that the utility model need prepare, and wherein the valve gap 1 of accompanying drawing 4 (accompanying drawing sign 1) is fixing with snail cell body 2 (the accompanying drawing sign 2) combination of accompanying drawing 5; Pointer groove 7 transparent cover plates 6 (accompanying drawing sign 6) interior, accompanying drawing 9 of pointer 5 (the accompanying drawing sign 5) accompanying drawing 6 of packing in advance of the pointer supporting plate 4 (accompanying drawing sign 4) of handwheel 3 of accompanying drawing 6 (accompanying drawing sign 3) and accompanying drawing 7, accompanying drawing 8 make up.

Stop valve of the present utility model is opened handwheel rotation 3 circles half fully from being closed to, so snail cell body 2 is made 4 circles and is left surplus capacity and blocked for preventing pointer, valve sets installs afterwards just, and snail cell body 2 is contained in valve gap 1 top and fix tightly, do not adorn handwheel 3, use the instrument handwheel valve closing.Then the pointer handwheel that combines (making pointer 5 be positioned at the inside " pass " word location of pointer groove 7) is contained in upper valve rod 8 upper ends, fixes with washer nut, this enforcement is promptly finished.

It should be noted last that above embodiment is only unrestricted in order to the explanation the technical solution of the utility model.Although the utility model is had been described in detail with reference to embodiment, those of ordinary skill in the art is to be understood that, the technical solution of the utility model is made amendment or is equal to replacement, the spirit and scope that do not break away from technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. direct device of indicator cock state on valve handle, this device comprises a rotatable handwheel (3), it is characterized in that, the below of described handwheel (3) is provided with fixing snail cell body (2), the upper surface of this snail cell body (2) is carved with the equally spaced from inside to outside helix of some circles, handwheel rotating cycle when the number of turns of described helix is opened from being closed to fully more than or equal to valve at least;

Radially offer a pointer groove (7) on the described handwheel (3), be used to limit the slide section of pointer (5); The bottom of described pointer (5) be butted on snail cell body (2) helix in.

2. according to claim 1 on valve handle the direct device of indicator cock state, it is characterized in that described device also comprises a valve gap (1) and a upper valve rod (8), described handwheel (3) and valve gap (1) are coaxial to be arranged on the upper valve rod (8);

Wherein, described valve gap (1) upper fixed has snail cell body (2).

3. according to claim 1 and 2 on valve handle the direct device of indicator cock state, it is characterized in that, described pointer groove (7) is " protruding " font and on handwheel (3), described pointer (5) is " ten " font accordingly, and this pointer (5) is nested in this pointer groove (7).

4. according to claim 1 on valve handle the direct device of indicator cock state, it is characterized in that the upper surface of described handwheel (3) is equipped with transparent cover plate (6).

5. according to claim 1 on valve handle the direct device of indicator cock state, it is characterized in that the lower surface of described handwheel (3) offers groove, described snail cell body (2) covers in this groove.

6. according to claim 5 on valve handle the direct device of indicator cock state, it is characterized in that, the top of described groove also is equipped with pointer supporting plate (4), this pointer supporting plate (4) is gone up and is offered groove corresponding to the pointer groove (7) on the handwheel (3), is used for pointer (5) is further located.