CN207364409U - A kind of valve switch instrument - Google Patents

Abstract

The utility model provides a kind of valve switch instrument, including matrix, at least two drag hooks are connected with described matrix, each drag hook relatively moves with matrix assemble in the same plane, each drag hook extends perpendicular to the same plane to matrix the same side, the one end of drag hook away from matrix is equipped with the hook portion for the spoke for drawing valve handle or valve handle when using for hook, and mandril identical with drag hook extending direction, for coordinating with the medium position pushing tow of valve handle is additionally provided with described matrix.The valve switch of the utility model, to the tension of the pushing tow and drag hook of valve handle to valve handle, can ensure that switching tools will not occur twisted with valve handle when exerting a force rotary substrate, easy to be opened and closed valve by mandril.

Description

A kind of valve switch instrument

Technical field

It the utility model is related to a kind of valve switch instrument.

Background technology

Handwheel is the structure for being usually used in being opened and closed valve on valve, since valve in many fields has application, some valves Place is limited installed in underground or operating space, such as fire-fighting system, underground drainage, some valves are in the valve pit of underground, behaviour It is very inconvenient into valve pit opening and closing valve operation to make personnel, if underground valve pit is chronically at closed state, can have been produced in valve pit Malicious pernicious gas, jeopardizes operating personnel's personal safety.

In face of it is such the problem of, the China that applying date 1993.07.09, Authorization Notice No. are CN2166919Y is practical new Type patent discloses a kind of tool for opening hand-wheel valve, and this switching tools include adjustable plate, and adjustable plate is equipped with connection slot hole, And adjustable claw is connected with by the connection slot hole, adjustable claw is fixed on adjustable plate by nut.In adjustable claw not by nut During locking, it can be moved in slot hole is connected so as to adapt to the valve handle of different-diameter.Pin hole is additionally provided with the middle part of adjustable plate, Pin hole can be connected with the tommy bar rotation stop with certain length, when in use, tommy bar be rotated by the reinforcing tommy bar on tommy bar, Adjustable plate can be rotated by tommy bar to make adjustable claw drive valve handle to rotate, realizes valve opening and closing.

But this tool for opening hand-wheel valve is by adjustable claw after handwheel spoke is blocked, adjustable claw and handwheel spoke In the up-down direction it cannot be guaranteed that being relatively fixed, when being exerted a force by reinforcing tommy bar, adjustable plate and adjustable claw are easy to twisted, are made Use inconvenient.

Utility model content

Twisted valve switch instrument will not occur when exerting a force and rotating the purpose of this utility model is to provide a kind of.

To achieve the above object, the technical solution of the utility model valve switching tools is：A kind of valve switch instrument, bag Matrix is included, at least two drag hooks are connected with described matrix, each drag hook relatively moves with matrix assemble in the same plane, respectively A drag hook extends perpendicular to the same plane to matrix the same side, and the one end of drag hook away from matrix, which is equipped with when using, is used for hook Draw the hook portion of the spoke of valve handle or valve handle, be additionally provided with described matrix it is identical with drag hook extending direction, for The mandril that the medium position pushing tow of valve handle coordinates, at least one in mandril and drag hook two can be with respect to matrixes vertical Relatively moved on the conplane direction.The valve switch of the utility model is by mandril to valve handle The tension of pushing tow and drag hook to valve handle, can ensure that switching tools will not occur with valve handle when exerting a force rotary substrate It is twisted, easy to be opened and closed valve.

Drag hook can be relatively moved relative to matrix on the conplane direction.

Matrix is equipped with the connection slot hole equal with drag hook quantity, and each connection slot hole is located in the same plane, Drag hook is connected on matrix by connecting slot hole, and drag hook is connected by connecting slot hole with matrix and realizes move opposite with matrix It is dynamic, it is simple in structure.

Further, stretched out in the connection slot hole of matrix, and locking nut has been screwed on one section stretched out, pass through section of stretching out Locking nut easily drag hook can be locked after drag hook hooks handwheel.

Preferably, matrix is the colyliform with least two disc, and connection slot hole is arranged on the disc, and mandril is set In the position that each disc crosses, so not only save material, mitigate instrument weight, but also personnel easy to operation hold and rotate Matrix.

Since the spoke on valve handle is mostly four, in the utility model by the disc of colyliform matrix be arranged to four and Circular array is versatile.

In addition, on the basis of above-mentioned multiple technical solutions, further optimally make mandril and matrix releasable connection, so Carried easy to the transport of instrument.

Further, matrix is equipped with rotation stop jack, and mandril is installed on matrix by rotation stop jack, can so ensured Mandril is synchronous with matrix, avoids it from relatively rotating between handwheel and produces frictional resistance.

, can also be in the remote matrix of mandril when the valve of expanding-contracting action occurs for valve rod when suitable for some be opened and closed One end sets the counterbore for the valve rod for being used to accommodate valve.

When being used in valve of the valve stem end with external thread section, counterbore could be provided as screw hole, and pass through the screw hole It is connected with valve rod, makes relative stability between valve and switching tools more preferable.

Brief description of the drawings

Fig. 1 is the structure diagram of the embodiment one of the valve switch instrument of the utility model；

Fig. 2 is the top view of Fig. 1；

Fig. 3 is the structure diagram that the valve of the utility model opens the embodiment two of extension instrument.

In attached drawing：1- matrixes, 10- disc, 11- connections slot hole, 12-T shapes groove, 2- drag hooks, 21- hook portions, 3- locking nuts, 4- mandrils, 40- counterbores.

Embodiment

The embodiment of the utility model is described further below in conjunction with the accompanying drawings.

The specific embodiment one of the valve switch instrument of the utility model, as shown in Figure 1 to Figure 2, including matrix 1, matrix 1 For the colyliform with four disc 10.Four disc are uniformly distributed around the center of colyliform matrix, and along disc on each disc Extending direction be equipped with connection slot hole 11.Drag hook 2 is coated with each connection slot hole 11, drag hook 2 can be along connection slot hole 11 Mobile, drag hook 2 extends perpendicular to plane where colyliform matrix and to the same side of colyliform matrix, the one end of drag hook 2 away from matrix 1 Equipped with hook portion 21.The medium position of colyliform matrix, i.e. four disc position that crosses are equipped with rotation stop jack, are fitted with rotation stop jack Mandril 4, mandril 4 is identical with the extending direction of drag hook 2 and is located at the homonymy of matrix with drag hook 2.Use the one end of mandril 4 away from matrix Coordinate in the middle part pushing tow of valve handle.The one end of drag hook 2 away from matrix is stretched out from connection slot hole 11, and is installed with lock thereon Tight nut 3.

In use, mandril 4 to be withstood on to the middle part of valve handle, then adjust position of the drag hook 2 in slot hole 11 is connected with The size of valve handle is adapted to, then screwing locking nut 3 makes the hook portion of drag hook tense the spoke of valve handle, at this time, passes through It is reliably connected between one top, one drawing guarantee instrument and valve, valve handle can be driven by drag hook by rotating colyliform matrix 1 at this time Rotate, realize the opening and closing of valve.

Drag hook and mandril have certain length and allow the operator to open the valve in valve pit on valve pit Closed operation, or operation is opened and closed to the limited valve of surrounding space.On the mandril 4 of the valve opening and closing instrument of the utility model Counterbore 40 also is equipped with one end away from matrix, operation is opened and closed in the valve of valve rod generation expanding-contracting action during to opening and closing When, counterbore 40 can be stretched into for valve rod, avoid interfering between valve rod and mandril.Certainly, counterbore may be set to be screw thread Hole, so when the valve stem end of valve is thread segment, mandril can be connected by threaded hole with valve rod, so be further improved Stability between switching tools and valve.

The utility model additionally provides the embodiment two of valve switch instrument, as shown in figure 3, embodiment two and embodiment one The main distinction be, set on the disc of colyliform matrix 1 to extend to the outer peripheral T-slot 12 of colyliform matrix, drag hook 2 End is slidably mounted in T-slot by the sliding block being adapted to T-slot 12, and at this time, drag hook 2 will not be with respect to matrix perpendicular to wheel Relatively moved on the direction of shape matrix 1.The middle part of colyliform matrix 1 is equipped with screw hole, and mandril 4 is installed in screw hole, screws top Bar can make it be moved with respect to colyliform matrix on the direction of colyliform matrix, so can also hold out against when in use Valve, and drag hook is hooked valve.Certainly, in order to avoid when rotating colyliform matrix mandril relatively rotate with matrix, can Back tightening nut is installed with two side positions respectively positioned at colyliform matrix on mandril, is ensured after mandril holds out against valve handle no longer Relatively rotate with matrix.

In above two embodiment, matrix is the colyliform with four disc, and in other embodiments, matrix can be with For tabular, connection slot hole is set onboard；Or matrix is colyliform, but the number of disc is two or three or five etc.. In above two embodiment, mandril and matrix are releasable connection, and in other embodiments, mandril can be fixedly connected on base On body, such as it is wholely set or welds.

In embodiment one, locked when drag hook is installed on matrix by connecting slot hole by locking nut and matrix, at it In his embodiment, drag hook is that the one end for stretching out connection slot hole is equipped with block away from one end of hook portion, the block and matrix One side block, is also equipped with backing pin on drag hook in another side position of matrix, passes through backing pin and block and the gear of matrix two sides Only, ensure that drag hook is not relatively moved with matrix on drag hook extending direction.

Claims (10)

1. a kind of valve switch instrument, it is characterized in that, including matrix, is connected with least two drag hooks, Ge Gela in described matrix Hook relatively moves with matrix assemble in the same plane, and each drag hook prolongs perpendicular to the same plane to matrix the same side Stretch, the one end of drag hook away from matrix is equipped with the hook portion for the spoke for drawing valve handle or valve handle when using for hook, the base Be additionally provided with body it is identical with drag hook extending direction, for the mandril with the cooperation of the medium position pushing tow of valve handle, mandril and At least one in drag hook two can relatively move with respect to matrix on the conplane direction.

2. valve switch instrument according to claim 1, it is characterized in that, drag hook can be relative to matrix perpendicular to described Conplane direction on relatively move.

3. valve switch instrument according to claim 1, it is characterized in that, described matrix is equipped with equal with drag hook quantity Slot hole is connected, each connection slot hole is located in the same plane, and the drag hook is connected on matrix by connecting slot hole.

4. valve switch instrument according to claim 2, it is characterized in that, described matrix is equipped with equal with drag hook quantity Slot hole is connected, each connection slot hole is located in the same plane, and the drag hook is connected on matrix by connecting slot hole, institute The one end for stating the remote hook portion of drag hook is stretched out from the connection slot hole of matrix, and has screwed locking nut on one section stretched out.

5. the valve switch instrument according to claim 3 or 4, it is characterized in that, described matrix is with least two disc Colyliform, connection slot hole be arranged on the disc, mandril is arranged on the position that each disc crosses.

6. valve switch instrument according to claim 5, it is characterized in that, the disc has four and circular array.

7. according to the valve switch instrument described in any one in claim 1,2,3,4 or 6, it is characterized in that, the mandril with Matrix releasable connection.

8. valve switch instrument according to claim 7, it is characterized in that, described matrix is equipped with rotation stop jack, the top Bar is installed on matrix by rotation stop jack.

9. valve switch instrument according to claim 8, it is characterized in that, one end of the remote matrix of the mandril, which is equipped with, to be used In the counterbore for the valve rod for accommodating valve.

10. valve switch instrument according to claim 9, it is characterized in that, the counterbore is screw hole.