CN201593628U - Anti-channeling liquid operating valve - Google Patents

Abstract

An anti-channeling liquid operating valve comprises hand grips, press blocks, micro-compression springs, hollow valves, equipment return liquid openings, one-way valves, springs, a liquid inlet, a valve body, a return liquid opening and crown bars. The press blocks corresponding to two crown bars are arranged at one end of the valve body; each hand grip is arranged at the center position of each press block; the equipment return liquid openings are arranged at the center positions of two long side edges of the valve body; the return liquid opening is arranged at one end inside the valve body closest to the hand grips under the condition that the equipment return liquid openings are centered; the liquid inlet is arranged at the other end inside the valve body; an upper hollow valve and a lower hollow valve in the same types are arranged inside the valve body and connected with the return liquid opening; the crown bars are arranged at one end of each hollow valve close to the press blocks; and the micro-compression springs are sleeved into the crown bars. Besides, an upper one-way valve and a lower one-way valve in the same types are arranged inside the valve body and connected with the liquid inlet; one end of each one-way valve is connected with the hollow valves; and the other end of each one-way valve is connected with the springs. The anti-channeling liquid operating valve has the advantages of simple integral structure, convenient operation and use, fine anti-channeling liquid effect and guarantee for reliable movement.

Description

A kind of leakage-proof control valve

Technical field:

The utility model relates to hydraulically operated valve, relates in particular to a kind of leakage-proof control valve.

Background technique:

Hydraulically operated valve is the combination brake switch and proporting that the control selector valve is used, and needs central controlled mechanically use that has in operation mechanism more.But the control valve of prior art, ubiquity the drawback of string liquid, and the hydraulic control equipment malfunction is done, and cause a hidden trouble to production.

The model utility content:

The purpose of this utility model is, overcomes the deficiencies in the prior art part, and a kind of leakage-proof control valve is provided, and avoids control valve that the problem of string liquid takes place, and guarantees production safety.

A kind of leakage-proof control valve described in the utility model includes handgrip, briquetting, little spring, hollow core valve, equipment liquid return hole, one-way valve, spring, liquid entering hole, valve body, liquid return hole and push rod composition of defeating.Said valve body is a main component of the present utility model, and at an end of said valve body, corresponding two push rods are provided with briquetting, and the middle position at said briquetting is provided with handgrip.Two long side middle positions at said valve body are provided with the equipment liquid return hole, and under said equipment liquid return hole condition placed in the middle, the end near handgrip in the valve body is provided with liquid return hole, is provided with liquid entering hole in the valve body of the other end.Be connected with said liquid return hole, in valve body, be provided with the hollow core valve of two same form up and down.The end that said hollow core valve relies on briquetting is provided with push rod, and the form to be inserted on said push rod is provided with little spring of defeating.Be connected with said liquid entering hole, be provided with the one-way valve of two same form up and down in valve body, said one-way valve one end is connected with hollow core valve, and the other end of one-way valve is connected with spring.

When starting hydraulic control equipment, pull handgrip, make briquetting promote push rod and move to the right, promptly close the hollow core valve of a side, also just opened one-way valve simultaneously.At this moment pressure liquid by this one-way valve, enters hydraulic control equipment from the equipment liquid return hole of the same side from liquid entering hole, makes equipment work.Meanwhile, hydraulic control equipment output liquid is through the equipment liquid return hole of valve body opposite side, and the hollow core valve by this side returns liquid from liquid return hole.Because the liquid return hole on each valve body all communicates, thus when the pressure liquid of hydraulic control equipment output hollow core valve by this side, when arriving liquid return hole, also arrived on the same group simultaneously in the liquid return hole of each valve body.Again because the valve port of the both sides hollow core valve of each valve body all often open, so pressure liquid arrives from the both sides hollow core valve of other valve bodies again, enter other hydraulic control equipment from the equipment liquid return hole of valve body both sides, therefore guaranteed that equipment can not produce misoperation, has eliminated potential safety hazard.

A kind of leakage-proof control valve described in the utility model, overall structure is simple, and is easy for operation, and leakage-proof is effective, guarantees reliable in action.Especially the utility model is provided with little spring of defeating on push rod, under this little effect of defeating spring, makes the hollow core valve of both sides be in normally off.Because the pressure liquid that comes from liquid return hole is consistent with little direction of defeating spring, so though little spring force of defeating spring is very little, pressure liquid still can not enter into the equipment liquid return hole by hollow core valve, is other equipment feed flows.But when pressure liquid when equipment liquid return hole direction is returned liquid because that little on the push rod defeats the spring force of spring is very little,, can not influence hydraulic control equipment output liquid so pressure liquid can easily pass through, therefore also avoided the string liquid problem of control valve.

Description of drawings:

Accompanying drawing 1 is the structural representation of the described a kind of leakage-proof control valve of model utility.The little spring 4-hollow core valve 5-equipment liquid return hole 6-one-way valve 7-spring 8-liquid entering hole 9-valve body 10-liquid return hole 11-push rod of defeating of 1-handgrip 2-briquetting 3-

Embodiment:

Referring now to accompanying drawing 1, be described as follows in conjunction with the embodiments: a kind of leakage-proof control valve described in the utility model includes handgrip 1, briquetting 2, little spring 3, hollow core valve 4, equipment liquid return hole 5, one-way valve 6, spring 7, liquid entering hole 8, valve body 9, liquid return hole 10 and push rod 11 compositions of defeating.Said valve body 9 is main components of the present utility model, and at an end of said valve body 9, corresponding two push rods 11 are provided with briquetting 2, in the middle position of said briquetting 2, are provided with handgrip 1.Two long side middle positions at said valve body 9 are provided with equipment liquid return hole 5, and under said equipment liquid return hole 5 condition placed in the middle, the end near handgrip 1 in the valve body 9 is provided with liquid return hole 10, is provided with liquid entering hole 8 in the valve body 9 of the other end.Be connected with said liquid return hole 10, in valve body 9, be provided with the hollow core valve 4 of two same form up and down.The end that said hollow core valve 4 relies on briquetting 2 is provided with push rod 11, and the form to be inserted on said push rod 11 is provided with little spring 3 of defeating.Be connected with said liquid entering hole 8, be provided with the one-way valve 6 of two same form up and down in valve body 9, said one-way valve 6 one ends are connected with hollow core valve 4, and the other end of one-way valve 6 is connected with spring 7.When starting hydraulic control equipment, pull handgrip 1, make briquetting 2 promote push rod 11 and move to the right, promptly close the hollow core valve 4 of a side, also just opened one-way valve 6 simultaneously.At this moment pressure liquid by this one-way valve 6, enters hydraulic control equipment from the equipment liquid return hole 5 of the same side from liquid entering hole 8, makes equipment work.Meanwhile, hydraulic control equipment output liquid is through the equipment liquid return hole 5 of valve body 9 opposite sides, by the hollow core valve 4 of this side, from 10 times liquid of liquid return hole.Because the liquid return hole 10 on each valve body 9 all communicates, thus when the pressure liquid of hydraulic control equipment output hollow core valve 4 by this side, when arriving liquid return hole 10, also arrived on the same group simultaneously in the liquid return hole 10 of each valve body 9.Again because the valve port of the both sides hollow core valve 4 of each valve body 9 all often open, so pressure liquid arrives from the both sides hollow core valve 4 of other valve bodies 9 again, enter other hydraulic control equipment from the equipment liquid return hole 5 of valve body 9 both sides, therefore guaranteed that equipment can not produce misoperation, has eliminated potential safety hazard.A kind of leakage-proof control valve described in the utility model, overall structure is simple, and is easy for operation, and leakage-proof is effective, guarantees reliable in action.Especially the utility model is provided with little spring 3 of defeating on push rod 11, under this little effect of defeating spring 3, makes the hollow core valve 4 of both sides be in normally off.Because consistent with little direction of defeating spring 3, so though little spring force of defeating spring 3 is very little, pressure liquid still can not enter into equipment liquid return hole 5 by hollow core valve 4, is other equipment feed flows from the pressure liquid of liquid return hole 10.But when pressure liquid when equipment liquid return hole 5 directions are returned liquid because that little on the push rod 11 defeats the spring force of spring 3 is very little,, can not influence hydraulic control equipment output liquid so pressure liquid can easily pass through, therefore also avoided the string liquid problem of control valve.

Claims (2)

1. leakage-proof control valve, valve body (9) is a main component, end at said valve body (9), corresponding two push rods (11), be provided with briquetting (2), middle position in said briquetting (2), be provided with handgrip (1), it is characterized in that two long side middle positions at said valve body (9), be provided with equipment liquid return hole (5), under said equipment liquid return hole (5) condition placed in the middle, the end near handgrip (1) in the valve body (9) is provided with liquid return hole (10), is provided with liquid entering hole (8) in the valve body of the other end (9); Be connected with said liquid return hole (10), in valve body (9), be provided with the hollow core valve (4) of two same form up and down; The end that said hollow core valve (4) relies on briquetting (2) is provided with push rod (11), in the last form to be inserted in of said push rod (11), is provided with little spring (3) of defeating.

2. a kind of leakage-proof control valve according to claim 1, it is characterized in that being connected with said liquid entering hole (8), in valve body (9), be provided with the one-way valve (6) of two same form up and down, said one-way valve (6) one ends are connected with hollow core valve (4), and the other end of one-way valve (6) is connected with spring (7).

Images