CN203463773U

CN203463773U - Valve

Info

Publication number: CN203463773U
Application number: CN201320615962.9U
Authority: CN
Inventors: 应晓燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-09-29
Filing date: 2013-09-29
Publication date: 2014-03-05
Anticipated expiration: 2023-09-29

Abstract

The utility model provides a valve, and belongs to the technical field of valve components. The problem that an existing valve is easy to open by mistake is solved. The valve comprises a valve body, a valve rod is rotatably connected to the valve body, a valve clack is fixedly connected at one end of the valve rod, the other end of the valve rod stretches out of the valve body, a blind hole is axially formed in the end face of the stretching end of the valve rod, two rod-shaped handles are arranged in the blind hole, two guide grooves are axially formed in the inner wall of the blind hole, groove mouths of the two guide grooves are opposite, one ends of the handles are connected in the two guide grooves through pin shafts in a rotating and sliding mode, and two gaps allowing the handles to be embedded in are formed in the opening end of the blind hole of the valve rod. The valve can be prevented from being opened by mistake, and safety performance is improved.

Description

A kind of valve

Technical field

The utility model belongs to valve part technical field, relates to a kind of valve.

Background technique

Valve is industrial a kind of important fluid control devices, relates to national economy many departments, is the development fundamental equipments of national economy.Through the development of decades, China's valve products has formed tens large classes, especially surely at the forefront in the world aspect number of the enterprise and volume of production and marketing two.Valve has cut-off, adjusting, water conservancy diversion, prevents the functions such as adverse current, voltage stabilizing, shunting or overflow pressure relief.For the valve of liquid control system, from the simplest stop valve to very complicated robot control system(RCS) various valves used, 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.Valve is also divided into the valve materials such as cast iron valve, cast steel valve, stainless valve, Plastic valve according to material.

Valve generally comprises valve body, flap and controls the valve rod that flap rotates, and on valve rod, also can be connected with valve handle, and for rotation valve rod, due to the frequent stressed use of valve handle, so its structure is important.Chinese utility model patent application (201120119236.9) discloses a kind can multiple tooth work, and bearing capacity is high, centering is good, stress is concentrated minor valve handle, comprise handle body, handle body is provided with the hole being connected with valve rod, and the hole being connected with valve rod on described handle body is splined hole.Adopt the valve handle of the utility model structure, adopt splined hole structure, can effectively solve defect of the prior art, increase the working life of valve handle, and improve the performance accuracy of valve.But in real life process, outside valve is often exposed to, meeting rotating valve handle when some children play, thus cause valve to be opened by mistake, in some field, this will cause serious consequence.

Summary of the invention

The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of valve, and this valve can avoid valve to be opened by mistake, improves Safety performance.

The purpose of this utility model can realize by following technical proposal: a kind of valve, comprise the valve body with entrance point and outlet end, on described valve body, be rotatably connected to a valve rod, one end of described valve rod is fixed with a flap, the other end stretches out valve body, it is characterized in that, on the external part end face of described valve rod, axially offer a blind hole, in blind hole, be provided with two and be shaft-like handle, on the inwall of described blind hole, axially offer two guiding grooves, described two guiding groove notches are relative, one end of described handle is all rotated and is slidably connected in two guiding grooves by a bearing pin, described valve rod offers two breach that embed for handle at the opening end of blind hole.

The entrance point of valve body and outlet end are used for respectively connecting pipeline, and the rotation of valve rod drives flap to realize and opens with closed; Therefore because two shaft-like handles can move and rotate relative to guiding groove, be hidden in blind hole not using to shrink, and the outer side wall of valve rod is a circumferential surface, there is no point of application of force, therefore can avoid being opened by mistake, improves Security; While needing rotation valve rod, handle is moved, move to when outlet handle with sleeve, two handles embed respectively two breach, handle keep with stem shaft to plumbness, handle provides point of application of force for rotation valve rod, and breach plays circumferential position-limiting action to handle.

In above-mentioned valve, described two breach are symmetrical arranged.The bearing pin of two handles is parastate, and two handles are to be also symmetry status after launching.

In above-mentioned valve, the cross section of described handle is rectangular, and the thickness of handle is less than the degree of depth of breach.Be that handle can embed in breach completely, the rectangular handle of cross section has two working flanks relative with breach sidewall.

In above-mentioned valve, the length of described guiding groove is greater than the length of handle, and the length of described handle is greater than the external diameter of valve rod.Be that handle can be completely hiding while shrinking into blind hole, and can extend radially out valve rod while launching.

In above-mentioned valve, on the end face of described valve rod external part, be also hinged with an end cap, on described end cap, offer a through hole, on described valve rod end face, there is an inserting pin, when end cap covers, described inserting pin, through through hole, also offers the attachment hole connecting for snap close on described inserting pin.End cap can be avoided accumulating the foreign matters such as too much dust or rainwater in blind hole, simultaneously also can be locked by snap close mirror end cap, and avoid other people to usurp.

In above-mentioned valve, the equal arc transition of long arris of described handle.Handle is for grasping and application of force operation, and arc transition is convenient to be grasped, and facilitates the application of force.

Compared with prior art, this valve has the following advantages:

Therefore 1,, because two shaft-like handles can move and rotate relative to guiding groove, be hidden in blind hole not using to shrink, and the outer side wall of valve rod is a circumferential surface, there is no point of application of force, therefore can avoid being opened by mistake, improves Security.

2, owing to being also hinged with an end cap on the end face of valve rod external part, therefore can avoid accumulating the foreign matters such as too much dust or rainwater in blind hole, simultaneously also can be locked by snap close mirror end cap, avoid other people to usurp.

3, due to the equal arc transition of long arris of handle, therefore convenient grasping, facilitates the application of force.

Accompanying drawing explanation

Fig. 1 is the structure sectional view of the handle of this valve while drawing in.

Fig. 2 is the structure sectional view of the handle of this valve while launching.

Fig. 3 is the structure sectional view at another visual angle of this valve.

In figure, 1, valve body; 11, entrance point; 12, outlet end; 2, valve rod; 21, blind hole; 211, guiding groove; 22, breach; 3, flap; 4, handle; 5, end cap; 6, inserting pin.

Embodiment

Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.

As shown in Figure 1 and Figure 2, a kind of valve, comprise valve body 1, valve body 1 has entrance point 11 and outlet end 12, on valve body 1, be rotatably connected to a valve rod 2, one end of valve rod 2 is fixed with a flap 3, and the other end stretches out valve body 1, the entrance point 11 of valve body 1 and outlet end 12 are used for respectively connecting pipeline, and the rotation of valve rod 2 drives flap 3 to realize and opens with closed.On the external part end face of valve rod 2, axially offer a blind hole 21, in blind hole 21, be provided with two and be shaft-like handle 4, on the inwall of blind hole 21, axially offer two guiding grooves 211, two guiding groove 211 notches are relative, one end of handle 4 is all connected in two guiding grooves 211 by a bearing pin, this handle 4 can move and rotate relative to guiding groove 211, and valve rod 2 offers two breach 22 that embed for handle 4 at the opening end of blind hole 21.Therefore because two shaft-like handles 4 can move and rotate relative to guiding groove 211, be hidden in blind hole 21 not using to shrink, and the outer side wall of valve rod 2 is a circumferential surface, there is no point of application of force, therefore can avoid being opened by mistake, improves Security; While needing rotation valve rod 2, handle 4 is moved to handle with sleeve 4 while moving to outlet, two handles 4 embed respectively two breach 22, be that handle 4 keeps the plumbnesss axial with valve rod 2, handle 4 provides point of application of force for rotation valve rod 2, and 22 pairs of handles 4 of breach play circumferential position-limiting action.

Specifically, shown in Fig. 3, two breach 22 are symmetrical arranged, and the bearing pin of two handles 4 is parastate, after two handles 4 launch, are to be also symmetry status.The cross section of handle 4 is rectangular, and the thickness of handle 4 is less than the degree of depth of breach 22, and handle 4 can embed in breach 22 completely, and the rectangular handle 4 of cross section has two working flanks relative with breach 22 sidewalls.The equal arc transition of long arris of handle 4, convenient grasping, facilitates the application of force.The length of guiding groove 211 is greater than the length of handle 4, and the length of handle 4 is greater than the external diameter of valve rod 2, can be completely hiding when handle 4 shrinks into blind hole 21, and can extend radially out valve rod 2 while launching.On the end face of valve rod 2 external parts, be also hinged with an end cap 5, on end cap 5, offer a through hole, on valve rod 2 end faces, there is an inserting pin 6, when end cap 5 covers, inserting pin 6, through through hole, also offers the attachment hole connecting for snap close on inserting pin 6, end cap 5 can be avoided the foreign matters such as the too much dust of the interior accumulation of blind hole 21 or rainwater, simultaneously also can be locked by snap close mirror end cap 5, avoid other people to usurp.

Claims

1. a valve, the valve body (1) that comprises there is entrance point (11) and outlet end (12), on described valve body (1), be rotatably connected to a valve rod (2), one end of described valve rod (2) is fixed with a flap (3), the other end stretches out valve body (1), it is characterized in that, on the external part end face of described valve rod (2), axially offer a blind hole (21), in blind hole (21), be provided with two and be shaft-like handle (4), on the inwall of described blind hole (21), axially offer two guiding grooves (211), described two guiding grooves (211) notch is relative, one end of described handle (4) is all rotated and is slidably connected in two guiding grooves (211) by a bearing pin, described valve rod (2) offers two breach (22) that embed for handle (4) at the opening end of blind hole (21).

2. valve according to claim 1, is characterized in that, described two breach (22) are symmetrical arranged.

3. valve according to claim 2, is characterized in that, the cross section of described handle (4) is rectangular, and the thickness of handle (4) is less than the degree of depth of breach (22).

4. valve according to claim 3, is characterized in that, the length of described guiding groove (211) is greater than the length of handle (4), and the length of described handle (4) is greater than the external diameter of valve rod (2).

5. according to the valve described in claim 3 or 4, it is characterized in that, on the end face of described valve rod (2) external part, be also hinged with an end cap (5), described end cap offers a through hole on (5), on described valve rod (2) end face, there is an inserting pin (6), when end cap (5) covers, described inserting pin (6), through through hole, also offers the attachment hole connecting for snap close on described inserting pin (6).

6. valve according to claim 1, is characterized in that, the equal arc transition of long arris of described handle (4).