CN2123623U

CN2123623U - Plastic aspirating apparatus

Info

Publication number: CN2123623U
Application number: CN 92210203
Authority: CN
Inventors: 赵前锋
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-01-28
Filing date: 1992-01-28
Publication date: 1992-12-02

Abstract

The utility model relates to a plastic aspirating apparatus, which is a full plastic manual aspirating apparatus, belonging to the liquid transferred device. The utility model is suitable for refueling vehicles, split charging beverage and soya sauce, charging liquid in chemical laboratories, etc. The utility model is composed of a tee diaphragm valve, a liquid inlet pipe, a liquid outlet pipe and an air bag, wherein, the bag membrane of the air bag is made into a smooth continuous wave-shaped structure, a back valve adopts a plastic valve seat and a plastic valve sheet, and the connection of the plastic valve seat and the plastic valve sheet adopts a natural hung joined structure of a frame arranged on the plastic valve seat and a mounting angle arranged on the plastic valve sheet. The utility model has the advantages of simple structure, small size, high speed, high corrosion resistance, time saving and labor saving.

Description

Plastic aspirating apparatus

The utility model relates to a kind of manual plastics syringe, belongs to liquid transporting device.

In the prior art, manually syringe is made of aspirator and liquid inlet and outlet device usually.Wherein the liquid inlet and outlet device is mounted in check valve and the liquid inlet and outlet pipe composition on the three-way pipe liquid in-out mouth.Its aspirator is that the gas that is installed on the three-way pipe pump port is assisted, and gas is assisted the rubber balls that adopt more, and its deficiency is that oil resistance is poor, and application is narrow; Also have the flexible gas of the bellow type of employing to assist, as disclosed novel manual suction pumps among the CN89221235, it is to assist at bellow type contraction gas Joystick is installed, and gas assists the outside to be covered with shell.Its deficiency is, complex structure, and volume is big and cost is high.

It is a kind of simple in structure that the purpose of this utility model is to provide, and volume is little, manual plastics syringe easy to use.

Technical solution of the present utility model is, comprise three-way plastic tube 4, be connected at its liquid entering hole 6 installation check valves 5 and with plastics liquid inlet pipe 7, the plastics syringe of check valves 10 being installed and being connected and composed at liquid outlet 9 with drain pipe 8, the pump port 3 that it is characterized in that three-way pipe 4 assists 2 to be connected with plastic gas, and gas assists 2 the film of assisting to manufacture smooth continuous corrugated membrane 11.

Check valve is made up of plastic seat 12 and plastic valve plate 13 in this programme, at door type framework 14 of the valve opening edge of plastic seat 12 upper-end surfaces fixed installation, the thin bar 15 of straight flange plastics is fixedlyed connected with round plastic valve block 13, and make thin bar 15 and valve block 13 on same plane, one straight flange of thin slice 15 overlaps with a secant of circular valve block 13, form two established angles 16 between the round edge of thin slice 15 and valve block 13, valve block 13 covers on the valve opening of valve seat 12, and thin bar 15 inserts two vertical edges and 16 extensions of the established angle on the valve block that make framework 14 in the framework 14 and closes.

When the utility model uses, liquid inlet pipe inserted transferred in the liquid-container, grasp gas and assist, the pressurized gas of firmly holding with a firm grip is assisted, and forces the gas of gas in assisting to wash the check valve at liquid outlet place open, discharges from drain pipe.During with openhanded opening, gas is assisted by self spring return original shape, form negative pressure in assisting, the liquid outlet check valve is closed, and the liquid entering hole check valve is by breakdown, and being transferred liquid rises along liquid inlet pipe, pushing gas repeatedly assists, two check valves alternately open and close, and can suck three-way pipe again from the drain pipe discharge from liquid inlet pipe with being transferred liquid, reach the purpose of transferring liquid.If when higher liquid level is delivered to low liquid level, as long as satisfy the siphon condition, being transferred liquid will flow out automatically.

Advantage of the present utility model is, because assisting, gas adopts smooth continuous wave structure, the elastic restoring force that gas is assisted is strong, suction force is big, check valve adopts plastic seat and valve block, and their connection is hung the structure of closing naturally by framework on the valve seat and the established angle on the valve block, and not only sealing is reliable, and open and close flexibly, flow resistance is little.Adopted overall plastic structure, the oil resistant corrosion resistance is strong.So, the utlity model has simple in structurely, volume is little, and rate of liquid aspiration is fast, and corrosion resistance is strong, save time, the labour-saving advantage.Be fit to be applied to vehicles such as motorcycle, automobile and refuel, the packing of beverage, soy sauce, chemical experiment indoor liquid, fish jar change water etc.

Following accompanying drawing has been described an embodiment of the present utility model, below in conjunction with accompanying drawing the utility model is described in detail.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the structural representation of check valve.

Fig. 3 is the plan view of Fig. 2.

Fig. 4 is the structural representation of valve block.

The utility model is the main overall plastic syringe that adopts high pressure polythene plastics to make.Liquid inlet pipe 7 is a hard plastic tube among the figure, and the liquid entering hole 6 of three-way plastic tube 4 inserts the upper end-hole of liquid inlet pipe 7, carries out drive fit and connects.Drain pipe 8 is a waved plastic pipe, and its connecting end tightly is enclosed within on the liquid outlet 9 of three-way pipe 4.Gas assists 2 to be high pressure polythene soft plastic spares of making through blowing, in order to improve its elastic restoring force, increases suction force in the present embodiment, and it assists film to adopt smooth continuous corrugated, as shown in Figure 1 the smooth continuous corrugated ribbon of transverse distribution.It is the connection mouth that thickens that gas is assisted 2 lower end, is connected with the pump port 3 of three-way pipe 4 by screw thread.Gas assists 2 upper end to establish a return-air mouth 17, be stamped sealed cap 1 on it, in order to improve sealability, position relative with return-air mouth 17 in sealed cap 1 is provided with a projection 18, can tighten sealed cap 1 in use return-air mouth 17 is shut, work finishes and promptly sealed cap 1 is unscrewed return-air mouth 17 breakdowns, makes to assist internal air pressure to disappear, and the liquid in the liquid in-out pipe falls after rise.In the present embodiment, the structure of check valve such as Fig. 2, Fig. 3 are shown in Figure 4, and 12 is ring high pressure polythene plastic seat among the figure, and 13 is high pressure polythene plastic valve plate, and the linkage structure of valve block 13 and valve seat 12 as shown in the figure.At door type framework 14 of valve opening edge, the upper-end surface of plastic seat 12 fixed installation, valve seat 12 is the one-piece element of single injection-molded with framework 14 in the present embodiment.Connected element on the valve block 13 is that the straight flange plastics of fixedlying connected with round plastic valve block 13 approach bar 15.Thin bar 15 of plastics and valve block 13 are on same plane, and a straight flange of thin bar 15 overlaps with a secant of circular valve block 13.Between thin bar 15 and valve block 13 round edges, form two established angles 16 like this.The thin bar 15 of plastic valve plate 13 and plastics is the one-piece element of single injection-molded in the present embodiment.Valve block 13 is that valve block 13 covers on the valve opening of valve seat 12, in the thin bar 15 insertion frameworks 14, two vertical edges of framework 14 and 16 extensions of the established angle on the valve block is closed with the assembly method of valve seat 12.This linkage structure, more simple in structure, easy for installation than hinge Placement commonly used, and open and close flexibly.

Claims

1, a kind of plastics syringe, comprise three-way plastic tube 4, be connected at its liquid entering hole 6 installation check valves 5 and with plastics liquid inlet pipe 7, be connected at its liquid outlet 9 installation check valves 10 and with drain pipe 8, the pump port 3 that it is characterized in that three-way pipe 4 assists 2 to be connected with plastic gas, and gas assists 2 the film of assisting to make smooth continuous corrugated membrane 11.

2, plastics syringe according to claim 1, it is characterized in that described check valve is made up of plastic seat 12 and plastic valve plate 13, at door type framework 14 of valve opening edge, the upper-end surface of plastic seat 12 fixed installation, the thin bar 15 of straight flange plastics is fixedlyed connected with round plastic valve block 13, and make thin bar 15 and valve block 13 on same plane, one straight flange of thin bar 15 overlaps with a secant of circular valve block 13, form two established angles 16 between thin bar 15 and valve block 13 round edges, valve block 13 covers on the valve opening of valve seat 12, thin bar 15 inserts in the framework 14, and two vertical edges of framework 14 and 16 extensions of the established angle on the valve block are closed.