CN202733137U

CN202733137U - Lever valve

Info

Publication number: CN202733137U
Application number: CN 201220388049
Authority: CN
Inventors: 王品; 刘迎春
Original assignee: HANWEIER MECHINE (SHANGHAI) CO Ltd
Current assignee: HANWEIER MECHINE (SHANGHAI) CO Ltd
Priority date: 2012-06-28
Filing date: 2012-08-07
Publication date: 2013-02-13
Anticipated expiration: 2022-08-07
Also published as: CN102777670A

Abstract

The utility model discloses a lever valve, which relates to the technical field of valves and aims to solve the technical problem of inconvenience in use of the existing valve. The lever valve comprises a valve body and a valve core, wherein the valve core is installed in the valve body in a sliding way. The lever valve is characterized in that an air inlet and an air outlet of the valve body are separated by a thimble-type valve core, an air inlet of the thimble-type valve core is communicated with the air inlet of the valve body, and an air outlet of the thimble-type valve core is communicated with the air outlet of the valve body; the valve core is in a shape of a column, a sliding axis of the valve core coincides with the central axis of the valve core, the top end of the valve core extends outside the valve body, hermetic seal is performed on the connecting part of the valve core and the inner wall of the valve body, and the bottom end of the valve core just corresponds to a thimble of the valve core; and a telescopic return spring is arranged in the valve body, one end of the return spring is abutted with the valve core, the other end of the return spring is abutted with the valve body, and a telescopic axis of the return spring coincides with the axis of the valve core. A lever is arranged on the top end of the valve body, and the bottom end of the short part of the lever is abutted with the top end of the valve core. The lever valve provided by the utility model is suitable for air path control.

Description

Lever valve

Technical field

The utility model relates to the valve technology, particularly relates to a kind of technology of lever valve.

Background technique

The open and close controlling of air valve all drives valve core movement by valve rod and realizes.Existing air valve is when control opens and closes, and the power that acts on valve rod all is directly passed to spool, therefore need to apply larger pushing dynamics to valve rod, could realize the control of air valve switch, uses very inconvenient.

The model utility content

For the defective that exists in the above-mentioned prior art, technical problem to be solved in the utility model provides a kind of need and applies less pushing dynamics, can realize valve switch control, lever valve easy to use.

In order to solve the problems of the technologies described above, a kind of lever valve provided by the utility model comprises valve body, and is slidingly mounted on the spool in the valve body; It is characterized in that: the suction port of described valve body and air outlet are cut off by a centre lathe type valve inside, and the suction port of described valve inside is communicated with the suction port of valve body, and the air outlet of valve inside is communicated with the air outlet of valve body; Described spool is column, the slip axis of spool and himself central axes, and the top of spool extends the valve body outside, and spool and the hermetic seal of valve interior wall connecting part, and the bottom of spool is over against the thimble of valve inside; Be provided with a return spring in the described valve body, this return spring is a Telescopic spring, and an end of return spring props up spool, and the other end props up valve body, the dead in line of its flexible axis and spool.

The top of described valve body is provided with a lever, and the quarter butt section bottom of described lever props up the spool top.

The lever valve that the utility model provides, the racking that acts on lever is converted to moving axially of spool, thereby promoting valve inside opens, during the inoperation lever, spool automatically resets under the effect of returning spring, valve inside can cut out, amplification by lever, only less pushing dynamics need be applied, valve switch control can be realized, very easy to use.

Description of drawings

Fig. 1 is the sectional view of the utility model embodiment's lever valve.

Embodiment

Below in conjunction with description of drawings embodiment of the present utility model is described in further detail, but present embodiment is not limited to the utility model, every employing analog structure of the present utility model and similar variation thereof all should be listed protection domain of the present utility model in.

As shown in Figure 1, a kind of lever valve that the utility model embodiment provides comprises valve body 5, and is slidingly mounted on the spool 2 in the valve body 5; It is characterized in that: the suction port 7 of described valve body 5 is cut off by a centre lathe type valve inside 4 with air outlet 6, and the suction port of described valve inside 4 is communicated with the suction port 7 of valve body 5, and the air outlet of valve inside 4 is communicated with the air outlet 6 of valve body 5; Described spool 2 is column, the slip axis of spool 2 and himself central axes, and the top of spool 2 extends valve body 5 outsides, and spool 2 and valve body 5 inwall connecting part hermetic seals, and the bottom of spool 2 is over against the thimble 8 of valve inside 4; Be provided with a return spring 3 in the described valve body 5, this return spring 3 is Telescopic springs, and an end of return spring 3 props up spool 2, and the other end props up valve body 5, the dead in line of its flexible axis and spool 2.

The top of described valve body 5 is provided with a lever 1, and the quarter butt section bottom of described lever 1 props up spool 2 tops.

The utility model embodiment's working principle is as follows:

Under original state, the thimble of valve inside is in the ejection state, and this moment, valve inside was blocked suction port and the gas circuit between the air outlet of valve body, and valve body is in blocking state; The stock section of pushing lever, the quarter butt section promotion spool of lever is moved towards the valve inside direction, make the spool top press the thimble of valve inside to the gas circuit conducting that makes valve inside, at this moment suction port and the also thereupon conducting of the gas circuit between the air outlet of valve body, this moment, valve body was on state, can flow to by valve inside the air outlet of valve body from the pressurized gas of valve body suction port inflow; When being on state, unclamps valve body the pushing force that acts on lever stock section, spool namely returns back to initial position under the elastic force effect of return spring, the pressure on top surface that spool acts on the valve inside thimble also removes thereupon, the thimble of valve inside also ejects thereupon, make the gas circuit of valve inside return back to blocking state, this moment, suction port and the gas circuit between the air outlet of valve body were also blocked thereupon, and valve body also returns back to blocking state thereupon.

Claims

1. a lever valve comprises valve body, and is slidingly mounted on the spool in the valve body; It is characterized in that: the suction port of described valve body and air outlet are cut off by a centre lathe type valve inside, and the suction port of described valve inside is communicated with the suction port of valve body, and the air outlet of valve inside is communicated with the air outlet of valve body; Described spool is column, the slip axis of spool and himself central axes, and the top of spool extends the valve body outside, and spool and the hermetic seal of valve interior wall connecting part, and the bottom of spool is over against the thimble of valve inside; Be provided with a return spring in the described valve body, this return spring is a Telescopic spring, and an end of return spring props up spool, and the other end props up valve body, the dead in line of its flexible axis and spool; The top of described valve body is provided with a lever, and the quarter butt section bottom of described lever props up the spool top.