CN2176982Y

CN2176982Y - Liquid control valve

Info

Publication number: CN2176982Y
Application number: CN 93238359
Authority: CN
Inventors: 魏诚
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-22
Filing date: 1993-03-22
Publication date: 1994-09-14
Anticipated expiration: 2003-03-22

Abstract

The utility model provides a fluid control valve which belongs to a sealing device arranged on similar packaging bags, such as a water bag, an air bag, etc., for controlling fluid input and preventing reverse leakage. The control valve made of film material is stuck on a sealing bag in a hot pressing mode; the utility model can conveniently achieve that fluid is input from the control valve and automatically prevent leakage; besides, the utility model has the advantages of good tightness, simple structure, strong practicability and convenient generalization. The utility model is arranged on packaging bags which are used for packing fluid material.

Description

Liquid control valve

The utility model belongs to the control technology of fluid.

At present, make with plastic sheeting, the Ice bag for preservation of splendid attire fluid behind the fluid of packing into, seals with sealing device, can prevent escape of liquid, if just pack fluid into when using this product, this can significantly reduce cost of transportation, but must possess sealing device, therefore, exist contradiction between cost of equipment and the cost of transportation.For example, do not have heat sealing equipment in the mountain area, can't seal after Ice bag for preservation is poured water, and pour water, seal during bag, this will increase cost of transportation widely.

The purpose of this utility model is for addressing the above problem, a kind of control cock made from the membraneous material of antiseep is provided, this valve is placed in the packaging bag, then under need not the sealing device condition, can realize the input of fluid after, automatic airtight prevents to leak.

The utility model is achieved in that this control cock is the pancake fluid conduit systems that constitutes with the antiseep membraneous material, its both sides sealing forms two mouthfuls up and down, and at the latter half two places or more many places connect, the opening end that just becomes suitable for reading like this, end opening becomes anti-adverse current end, control cock by this making is installed on the sealing bags, fluid can be by opening opening end, cross anti-adverse current end from the valve body inner laminar flow, enter in the bag, when closing up opening end, when stopping the fluid input, because the pressure of the cohesive force of each junction of valve block lower half and bag inner fluid is closed anti-adverse current end, thereby makes packaging bag revert to sealing state, prevents the leakage of fluid.When needs are discharged the bag inner fluid, insert from opening end with a thin rod or analogue, will prevent that the adverse current end opens, can realize the discharge of bag inner fluid.

The utility model has the advantages that: (1) but the eliminate fluid packaging bag when sealing, fluid to the operation influence.(2) can realize the repeated usage of packaging bag.(3) compound of solid and fluid, the solid of can packing into earlier, and can reinstall fluid easily when using, this will make things convenient for its transportation to store widely, and reduce cost of transportation, obtain remarkable economic efficiency.

Accompanying drawing has been described two kinds of embodiment of the utility model the best.

Fig. 1: the front elevation of first kind of instantiation of the utility model.

Fig. 2: the exploded drawings that is Fig. 1 control valve for fluids.

Fig. 3: the front elevation of second kind of instantiation of the utility model.

Fig. 4: the exploded drawings that is Fig. 3 control valve for fluids.

The utility model is further described below in conjunction with accompanying drawing.

Example 1, valve body 1 is formed by the plastic sheeting heat seal.With the both sides heat seal, form two mouthfuls up and down, connect in the

connection position

2 and 3 heat seals of the latter half, the length that connects position 3 should surpass dotted line 4, and so the control valve for fluids of making is installed in and can realizes the convenient input of fluid, discharge and leak free function on the sealing bags.

Example 2, this valve body 5 and first kind of valve body 1 difference structurally just connect in the

connection position

6,7 and 8 heat seals of its latter half, and the length that connects position 6 should surpass dotted line 9 and 10.So the control valve for fluids of making has example 1 identical functions.

Claims

1, a kind of control valve for fluids that is used for packaging bag, it is characterized in that, the both sides of two films connect, valve body forms two mouthfuls up and down, horizontal and oblique connection two places that valve block lower half is divided, or many places more, glide path is from suitable for reading curved to end opening, and laterally the vertical projection that is bound up on end opening at place is continual continuous straight line.

2, control cock according to claim 1 is characterized in that: it is 2 and 3 connections that the latter half of valve body 1 connects the position, connects position 3 and intersects with dotted line 4.

3, control cock according to claim 1 is characterized in that the latter half of valve body 5 connects position 6,7 and 8 connections, connects position 6 and intersects with dotted line 9 and 10.