CN203413170U

CN203413170U - Operation valve

Info

Publication number: CN203413170U
Application number: CN201320339651.4U
Authority: CN
Inventors: 吴立坤; 张列清
Original assignee: QUZHOU KUNLI PLASTIC FACTORY
Current assignee: QUZHOU KUNLI PLASTIC FACTORY
Priority date: 2013-06-11
Filing date: 2013-06-11
Publication date: 2014-01-29
Anticipated expiration: 2023-06-11

Abstract

The utility model discloses an operation valve, which is formed by an operation valve A and an operation valve B; the operation valves A and B are used for controlling air paths; the operation valve A comprises a valve body A and a valve core A; the operation valve B comprises a valve body B and a valve core B; the valve body A is formed by a plastic member A and a metal valve bush A embedded during injection molding of the plastic member A; the valve body B is formed by a plastic member B and a metal valve bush B embedded during injection molding of the plastic member B; the metal valve bush A is an annular body A contacted with the valve core A and used for controlling the air path by the valve core A; the metal valve bush B is an annular body B contacted with the valve core B used for and controlling the air path by the valve core B. The operation valve has the beneficial effects that the machining difficulty is reduced, the product pass rate is improved and the product cost is reduced.

Description

A kind of control valve

Technical field

The utility model relates to a kind of control valve of engineering machinery, especially relates to the control valve that a kind of many gas circuits are controlled.

Background technique

In engineering machinery as rock drill, the mode that excavator need to pass through to impact is to stone, the article that cement etc. are firm carry out fragmentation, its control section is just completed by control valve, operator controls opening of air-flow by the controlling rod rotating in control valve, thereby close and the big or small action of controlling drift, conventionally, control valve is provided with total gas circuit input end and multi-channel output, not needing of having controlled, needing of having controlled, existing control valve is fixedly comprised of through bolt control valve A and control valve B, wherein, control valve A comprises valve A and spool A, control valve B comprises valve B and spool B, valve A and valve B process by metal valve, complicated shape and the precision-fit of spool and valve body make this control valve processing cost very high, scrappage is very high, final products bring a high price.

Model utility content

The utility model, according to above not enough, provides a kind of control valve, and the valve body in this control valve adopts the composite structure of working of plastics and metal valve pocket, greatly reduces difficulty of processing.

The technical solution of the utility model is:

, comprising: for controlling control valve A and the control valve B of gas circuit;

Control valve A comprises valve A, spool A, spool A is hollow cylinder, and sidewall is provided with some through holes and tapped hole A, is provided with the cavity A coordinating with spool A and the some outlet A that are communicated with this cavity A on valve A, also be provided with peripheral groove A, periphery hole A, the fixed hole A of both sides;

Control valve B comprises valve B, spool B, spool B is hollow cylinder, and sidewall is provided with through hole and tapped hole B, is provided with the cavity B coordinating with spool B and the outlet B being communicated with this cavity B on valve B, also be provided with peripheral groove B, periphery hole B, entrance, the fixed hole B of both sides;

Control valve A and control valve B are fastened by nut clip through fixed hole A and fixed hole B respectively by two bolts, spool A, spool B form sealing configuration by three O shape elastic rings and valve A and valve B are installed on end face, thereby operating handle A is screwed into tapped hole A from peripheral groove A and can controls spool A and rotate to control that spool A is inner to be communicated with certain outlet A, thereby operating handle B is screwed into tapped hole B from peripheral groove B, can controls spool B and rotate and control spool B inside and export B and be communicated with;

The metal valve pocket A that valve A embeds working of plastics A during by working of plastics A and injection moulding forms, and wherein, metal valve pocket A is the cirque body A contacting with spool A and controlled outlet A by spool A;

It should be noted that, on valve A, some outlet A and position need to not controlled by spool A, and metallic material can, without metal valve pocket A, therefore can be saved in these outlet A and position;

The metal valve pocket B that valve B embeds working of plastics B during by working of plastics B and injection moulding forms, and wherein, metal valve pocket B is the cirque body B contacting with spool B and controlled outlet B by spool B; In like manner, metallic material can, without metal valve pocket B, therefore also can be saved in the position that need to do not controlled by spool B on valve B;

Described metal valve pocket A and metal valve pocket B are made by No. 45 steel.

The circumference of described spool A and spool B is provided with step, described valve A on opposite position is provided with the through hole A of inner threaded, described valve B is provided with the through hole B of inner threaded, steel ball, spring is respectively installed in this through hole A and through hole B and by housing screw, steel ball is pressed on step.There is this structure just to have operation gear, output quantity that can control valve.

Described outlet A comprises straight-through not controlled outlet, two not controlled outlets of bent angle, straight-through controlled outlet, two controlled outlets of bent angle; Described outlet B comprises straight-through controlled outlet; The sidewall of described spool A is provided with elongated slot, and under the control of described operating handle A, the inside of spool A can be communicated with any one controlled outlet or any one controlled outlet and straight-through controlled outlet by this elongated slot.

Described outlet A, outlet B are provided with internal thread, and entrance is provided with outside thread.

The utlity model has the beneficial effect that reduces difficulty of processing, raising conforming product rate, reduces product cost.

Accompanying drawing explanation

Fig. 1 is external structure schematic diagram of the present utility model.

Fig. 2 is the external structure schematic diagram of another angle of the utility model.

Fig. 3 is internal structure schematic diagram of the present utility model.

Fig. 4 is the sectional view that the utility model spool A coordinates with metal valve pocket A.

Fig. 5 is a sectional view of the utility model spool A.

Embodiment

Now by reference to the accompanying drawings the utility model is further described:

As shown in the figure, a kind of control valve, comprising: for controlling control valve A and the control valve B of gas circuit;

Control valve A comprises valve A 1, spool A18, spool A18 is hollow cylinder, sidewall is provided with some through holes and tapped hole A180, on valve A 1, be provided with the cavity A coordinating with spool A18 and the some outlet A that are communicated with this cavity A, also be provided with peripheral groove A17, periphery hole A13, the fixed hole A14 of both sides;

Control valve B comprises valve B 5, spool B56, spool B56 is hollow cylinder, sidewall is provided with through hole and tapped hole B560, on valve B 5, be provided with the cavity B coordinating with spool B56 and the outlet B53 being communicated with this cavity B, also be provided with peripheral groove B55, periphery hole B51, entrance 54, the fixed hole B52 of both sides;

Control valve A and control valve B are fastened by nut clip through fixed hole A14 and fixed hole B52 respectively by two bolts 4, spool A18, spool B56 form sealing configuration by three O shape elastic rings 6 are installed on end face with valve A 1 and valve B 5, thereby operating handle A2 is screwed into tapped hole A180 from peripheral groove A17 and can controls spool A18 and rotate to control that spool A18 is inner to be communicated with certain outlet A, thereby operating handle B3 is screwed into tapped hole B560 from peripheral groove B55, can controls spool B56 and rotate and control spool B56 inside and export B53 and be communicated with;

The metal valve pocket A19 that valve A 1 embeds working of plastics A during by working of plastics A and injection moulding forms, and wherein, metal valve pocket A19 is the cirque body A contacting with spool A18 and controlled outlet A by spool A18;

The metal valve pocket B57 that valve B 5 embeds working of plastics B during by working of plastics B and injection moulding forms, and wherein, metal valve pocket B57 is the cirque body B contacting with spool B56 and controlled outlet B by spool B5.

The circumference of spool A18 is provided with step 181, and the described valve A 1 on opposite position is provided with outside threaded through hole A13, steel ball 71, spring 73 is installed in this through hole A13 and by housing screw 72, steel ball 71 is pressed on step.Had this step, the position of operating handle is easier to location.

In like manner, the circumference of spool B56 is provided with step, and opposite position upper valve body B5 is provided with outside threaded through hole B51, steel ball 71, spring 73 is respectively installed in this through hole A13 and through hole B51 and by housing screw 72, steel ball 71 is pressed on step.

Outlet A comprises straight-through not controlled outlet 11, two not controlled outlets 12 of bent angle, straight-through controlled outlet 16, two controlled outlets 15 of bent angle; Described outlet B comprises straight-through controlled outlet 53; The sidewall of spool A18 is provided with elongated slot 181, and under the control of operating handle A2, the inside of spool A18 can be communicated with any one controlled outlet 15 or any one controlled outlet 15 and straight-through controlled outlet 16 by this elongated slot 181.That is to say that the shared arc length of elongated slot 181 is more than or equal to a controlled outlet 15 maximum arc length shared with straight-through controlled outlet 16, but be less than two minimum arc length that controlled outlet 15 is shared.

Outlet A, outlet B are provided with internal thread, and entrance 54 is provided with outside thread and is convenient to connect with outside.

Described metal valve pocket A19 and metal valve pocket B57 are made by No. 45 steel.

Claims

1. a control valve, comprising: for controlling control valve A and the control valve B of gas circuit;

Control valve A comprises valve A (1), spool A(18), spool A(18) be hollow cylinder, sidewall is provided with some through holes and tapped hole A(180), on valve A (1), be provided with and spool A(18) the cavity A coordinating and the some outlet A that are communicated with this cavity A, be also provided with peripheral groove A(17), the fixed hole A(14 of both sides);

Control valve B comprises valve B (5), spool B(56), spool B(56) be hollow cylinder, sidewall is provided with through hole and tapped hole B(560), on valve B (5), be provided with and spool B(56) the cavity B coordinating and the outlet B(53 being communicated with this cavity B), also be provided with peripheral groove B(55), entrance (54), the fixed hole B(52 of both sides);

Control valve A and control valve B pass respectively fixed hole A(14 by two bolts (4)) and fixed hole B(52) by nut clip, fastened, spool A(18), spool B(56) by being installed on end face, three O shape elastic rings (6) form sealing configuration with valve A (1) and valve B (5), operating handle A(2) from peripheral groove A(17) be screwed into tapped hole A(180) can control spool A(18) thereby rotate and control spool A(18) innerly export A with certain and be communicated with, operating handle B(3) from peripheral groove B(55) be screwed into tapped hole B(560) can control spool B(56) thus rotate and control spool B(56) inner with export B(53) be communicated with,

It is characterized in that:

Valve A (1) embeds the metal valve pocket A(19 of working of plastics A during by working of plastics A and injection moulding) form;

Valve B (5) embeds the metal valve pocket B(57 of working of plastics B during by working of plastics B and injection moulding) form;

Wherein, be and spool A(18 described metal valve pocket A(19)) contact and by spool A(18) control the cirque body A of gas circuit; Described metal valve pocket B(57) be and spool B(56) contact and by spool B(5) control the cirque body B of gas circuit.

2. a kind of control valve as claimed in claim 1, is characterized in that, described metal valve pocket A(19) and metal valve pocket B(57) by No. 45 steel, made.