CN203099050U - Anti-theft valve handle - Google Patents

Abstract

The utility model relates to an anti-theft valve handle. The handle is connected with a valve rod, and a thin and long center rod is arranged in the center of the handle. The center rod comprises a connecting rod and a matched rod, and the matched rod is connected with the valve rod in a matched mode. The section of the matched rod is oval or regular-triangle-shaped or square or regular-hexagon-shaped. According to the anti-theft valve handle, opening and closing of a valve are achieved through matching of the handle center rod in a specific shape and the valve rod; on one hand, the section shape of the handle center rod is optimized, and the handle is long in service life and can not fail easily; and on the other hand, the section of the handle center rod is in the specific shape, any other valve handle operation can be prevented, therefore an anti-theft function is achieved to a certain extent, and an implementation effect is good.

Description

A kind of valve for guarding against theft handwheel

Technical field

The utility model relates to a kind of valve handle, especially a kind of valve for guarding against theft handwheel.

Background technique

Valve is the crucial controlling component in the fluid delivery system, have by, adjusting, water conservancy diversion, prevent functions such as adverse current, voltage stabilizing, shunting or overflow pressure release.The valve that is used for liquid control system, from the simplest stop valve to very complicated robot control system(RCS) used various valves, its kind and specification are quite various.Valve can be used for controlling flowing of all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.

Existing valve mechanism generally drives valve plate by the handwheel rotation and moves up and down, and realizes closing or opening of valve like this.But such valve much is installed in the biotope, have in addition be installed in the field, be in unserviced state.Valve is easy on the one hand by misoperation, and slight rotation hand wheel all causes the valve opening and closing state labile; Handwheel and valve rod are used more on the other hand, and it skids easily, cause handwheel work actual effect.

The model utility content

The deficiency that the utility model exists at prior art just provides a kind of valve for guarding against theft handwheel.

For addressing the above problem, technical solution adopted in the utility model is as follows:

A kind of valve for guarding against theft handwheel, described handwheel and valve rod link together, and the handwheel center is provided with elongated center-pole, and described center-pole comprises connecting rod and depending post, and depending post and valve rod cooperate together.

As improvement of the technical scheme, the sectional shape of described depending post is the oval type.

As improvement of the technical scheme, the sectional shape of described depending post is equilateral triangle or square.

As improvement of the technical scheme, the sectional shape of described depending post is a regular hexagon.

The utility model compared with prior art, implementation result of the present utility model is as follows:

Valve for guarding against theft handwheel described in the utility model utilizes the handwheel center-pole of given shape to cooperate with valve rod, has realized valve opening and has closed, and has optimized the sectional shape of handwheel center-pole on the one hand, and handwheel is long service time, is difficult for losing efficacy; Handwheel center-pole cross section is a given shape on the other hand, in case any other operated by handwheel plays antitheft effect to a certain extent, implementation result is good.

Description of drawings

Fig. 1 is a valve for guarding against theft structural representation described in the utility model;

Fig. 2 is the handwheel structural representation of valve for guarding against theft described in the utility model;

Fig. 3 ~ Fig. 6 is the A-A view (enlarged view) of various embodiments among Fig. 2.

Embodiment

Content of the present utility model is described below in conjunction with specific embodiments.

As shown in Figure 1, be valve for guarding against theft structural representation described in the utility model.Described valve comprises valve body 10, valve gap 20, valve plate 30, valve rod 40, valve plate seal ring 50, gland 60, handwheel 70 and valve seals 80.The inside of valve body 10 is provided with bigger cavity, and there is unlimited opening at two ends, is convenient to entering and flowing out of fluid like this.Valve gap 20 is installed in the top of valve body 10, and valve gap 20 inside are provided with certain cavity, and the cavity of this cavity and valve body 10 inside mates mutually.Be provided with valve seals 80 between valve gap 20 and the valve body 10,, utilize the locking nut (not shown) that the three tightly is locked together in case fluid is revealed.The oral area of valve gap 20 upper ends is less, and the oral area inboard is provided with internal thread.

Bigger cavity central position at valve body 10, valve plate 30 is installed, between the both sides of valve plate 30 and the valve body 10 valve plate seal ring 50 is installed, valve plate 30 is flat tabular, its size is bigger slightly than the cavity in the valve body 10, just in time can stop fluid to flow in valve body 10.Valve rod 40 is installed directly over the valve plate 30, and valve rod 40 is provided with outside thread.Valve rod 40 passes the oral area of valve gap 20 upper ends, and the internal thread of outside thread on the valve rod 40 and valve gap 20 oral areas is meshing with each other.

Be provided with gland 60 in valve gap 20 upper ends, gland 60 neutral positions are provided with center hole, gland 60 and valve gap 20 screw-threaded couplings.Gland 60 upper ends are provided with handwheel 70, and handwheel 70 centers are provided with elongated center-pole 71, and center-pole 71 passes the center hole of gland 60, are connected and fixed with valve rod 40.

When rotation hand wheel 70, center-pole 71 drives valve rod 40 rotations, and under valve gap 20 oral area screw-thread fit, valve rod 40 rotations also move up and down, and drive moving up and down of valve plate 30 by moving up and down of valve rod 40 like this, finally realize the open and close of valve.

As shown in Figure 2, be handwheel 70 structural representations of valve for guarding against theft described in the utility model; Fig. 3 ~ Fig. 6 is the A-A view (enlarged view) of various embodiments among Fig. 2.Center-pole 71 comprises connecting rod 71a and depending post 71b.Depending post 71b is used for cooperating with valve rod 40 and being connected, and connecting rod 71a is connected and fixed depending post 71b and handwheel rotating disk.For rotation valve rod 40 effortlessly fast, the sectional shape of depending post 71b has certain requirement.As Fig. 3 ~ shown in Figure 6, be the sectional shape of various embodiments' depending post 71b.Depending post 71b sectional shape among Fig. 3 is the oval type, and it is easy to process, only need two side millings to put down and get final product, and its running torque is bigger.Fig. 4 is an equilateral triangle, and Fig. 5 is a square, and Fig. 6 is a regular hexagon.In fact regular hexagon is after long-time the use, and its corner angle are caused being easy to skid by rounding, are easy to generate inefficacy.Therefore, depending post 71b sectional shape is preferably the oval type, is equilateral triangle or square secondly, is regular hexagon secondly again.。

Above content is the detailed description of the utility model being done in conjunction with concrete preferred implementation, can not assert that the concrete enforcement of the utility model only limits to these explanations.For the utility model person of ordinary skill in the field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to the scope of the utility model protection.

Claims (4)

1. valve for guarding against theft handwheel, described handwheel (70) links together with valve rod (40), handwheel (70) center is provided with elongated center-pole (71), it is characterized in that, described center-pole (71) comprises connecting rod (71a) and depending post (71b), and depending post (71b) cooperates together with valve rod (40).

2. a kind of valve for guarding against theft handwheel as claimed in claim 1 is characterized in that the sectional shape of described depending post (71b) is the oval type.

3. a kind of valve for guarding against theft handwheel as claimed in claim 1 is characterized in that the sectional shape of described depending post (71b) is equilateral triangle or square.

4. a kind of valve for guarding against theft handwheel as claimed in claim 1 is characterized in that the sectional shape of described depending post (71b) is a regular hexagon.

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