CN2331772Y

CN2331772Y - All-pneumatic water pump

Info

Publication number: CN2331772Y
Application number: CN 97242858
Authority: CN
Inventors: 陈文忠
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-12-10
Filing date: 1997-12-10
Publication date: 1999-08-04
Anticipated expiration: 2007-12-10

Abstract

The utility model relates to an all-pneumatic water pump. The utility model is characterized in that a valve body is fixedly arranged in a cylinder and a valve core is contained in the valve body; both sides of the valve body are respectively provided with pistons and the connecting rod connecting two pistons passes through the valve body; both sides of the valve body are also provided with a baffling block which is matched with the valve core and a valve core hole is arranged in the valve core; a through hole matched with the valve core hole and the air hole matched with an air valve are arranged in the valve body and the upper side of the end cover at both ends of the cylinder is respectively provided with two one-way valves communicated with the cylinder. The utility model has the advantages of simple structure, small size, small vibration, noiselessness, stability, reliability and continuous work, and the compressed air is used as the power source and also as a water sucking pump.

Description

Full Pneumatic water pump

The utility model relates to the technical field of water pump, the water supply equipment that specifically a kind of utilization has the body of the calming the anger source that is used as power that water is pressurizeed.

Some area is because tap water quality and hydraulic pressure are undesirable at present; can cause many watering equipments can not bring into play its normal function; water channel stops up in solid impurity regular meeting in the water; particularly the following tubule of diameter 1mm stops up the difficult mediation in back, and impure water also can cause bacterial infection, and water quality is fair; but hydraulic pressure low excessively (＜0.1MPa) can make flow velocity and underfed; influence is normal to be used, and many watering equipments of having relatively high expectations often are in exempts to force the state of using, and this is long-standing old problem.Can only install at present the small-sized electric water pump to hypotensive tap water or and adorn water purification and pressurize and solve water resources problem, but the electric water pump noise is big, hydraulic pressure is difficult for regulating, the system architecture complexity, the installation degrees of freedom is little, and inconvenient maintenance also involves problems such as Electrical Safety, because there are these shortcomings, electric water pump is not desirable water supply equipment in some suitable occasions.Current pneumatics is widely applied to many fields because it has unique advantage, but still find no the report or the product that close Pneumatic water pump so far, through consulting interrelated data, in existing pneumatics, once introduced a kind of control of stroke valve reciprocal pneumatically controlled loop such as Fig. 1 continuously of having, it mainly is made up of double-acting cylinder 14, air valve 10, selector valve 11,

stroke valve

12,13 etc., be connected with joint with tracheae each other, its working procedure is described as follows:

14 fens A of single piston double-acting cylinder, B two air cavitys, Oa and Ob are the ventilating joint of two air cavitys, piston rod right-hand member dress collision block, the piston rod left end can drive reciprocal load.Figure one is depicted as static state, when hand is pressed air valve 10, control gas is by stroke valve 12, enter selector valve left end K1 through air valve 10, make power gas source switch to a, to the inflation of A air cavity, promote piston and move to right through Oa, collision block bruising on piston rod is to stroke valve 13, stroke valve 12 is cut off behind the spring reset simultaneously, and stroke valve 13 connection signal gas also enter selector valve right-hand member K2, and selector valve 11 is switched once more, make power gas source by b, through 0b air cavity B is inflated, air cavity A is through the selector valve exhaust, and the collision block on piston rod is bruising stroke air valve 12 again, repeat above-mentioned working procedure, so realize continuous to-and-fro motion.The piston rod left end can drive the reciprocal water vat of piston type of other design.This technological scheme reliability is not high, not good or fastening piece is slightly loosening as levelling, easily produce misoperation, and the appearance of obstacle signal can destroy whole working procedure, also want specialized designs piston type water vat by cylinder piston drive work in addition, though can reach pneumatic function of drawing water, it is complicated that total seems, is difficult to reach the design of practicability.

The purpose of this utility model is to provide a kind of structure comparatively simple full Pneumatic water pump, and it can reach following basic demand:

1, power source is pressurized air or the inert gas with pressure, can not electricity consumption;

2, continuous operation automatically behind the connection source of the gas;

3, can regulate the pressure of output water easily, without the overflow unloading method;

4, have self-absorption function, need not pour water before starting;

5, simple and practical, reliable and stable, safety;

6, installation, maintenance is convenient.

The technical solution of the utility model is achieved in that full Pneumatic water pump, it comprises cylinder barrel, the end cap at cylinder barrel two ends, be contained in the piston in the cylinder barrel, valve body, be contained in the spool in the valve body, the air valve that is connected with cylinder barrel, it is characterized in that: in cylinder barrel, be fixed with valve body, in valve body, accommodate spool, both sides at valve body respectively are provided with a piston, the connecting rod that connects two pistons passes valve body, both sides at valve body also are fixed with the block that matches with spool, in spool, be provided with spool bore, in valve body, be provided with through hole that matches with spool bore and the pore that matches with air valve, on the end cap of the two ends of cylinder barrel, respectively be provided with two one-way valves that are connected with cylinder barrel.

Use above-mentioned structure characteristic, manufactured experimently the model machine of a full Pneumatic water pump, through more than 200 hours continuous action test, it was quite desirable any fault, effect not to occur, and concluding its characteristics has:

1, the compressed air source is used in not electricity consumption, can be widely used in the unsafe occasion of electricity consumption;

2, utilize the direct bruising block of piston to control that changeover valve core moves and displacement amount, it is good to repeat performance;

3, the power gas double as in the cylinder barrel promotes the control gas of changeover valve core, can not produce obstacle signal;

4, moving of piston changes no overflow requirement, and energy saving with water consumption;

5, regulate the water pressure that input air pressure gets final product synchronous change output;

Noiseless when 6, working, friction, and safety must not poured water:

7, integral body is closed shape, do not have to expose movable part, and simple in structure, volume is little;

8, the installation degrees of freedom is big, directionless requirement, and easy maintenance, and maintenance expenses is few.

Fig. 1 is the prior art constructions schematic representation

Fig. 2 is a structural representation of the present utility model

The utility model will be further described below in conjunction with drawings and Examples.

The utility model comprises cylinder barrel 1, be contained in the piston 2 in the cylinder barrel 1, valve body 3, be contained in the spool 6 in the valve body 3, the air valve 10 that is connected with cylinder barrel 1, it is different from prior art: be fixed with valve body 3 in cylinder barrel 1, valve body 3 is general near the neutral position in the cylinder barrel, in valve body 3, cavity is arranged, this cavity can ccontaining spool 6, the both sides of the valve body 3 in cylinder barrel 1 respectively are provided with a piston 2, each piston 2 all is the drive fit of sealing with the inwall of cylinder barrel 1,2 in two pistons connect by a connecting rod 4, these connecting rod 4 operated by rotary motion are at the center of two pistons 2, the connecting rod 4 that connects two pistons 2 passes valve body 3, be fixed with the block 5 that matches with spool 6 in the both sides of valve body 3, be provided with fixed block 16 in the both sides of valve body in the present embodiment, block 5 has the unequal leg of approximate L type, block 5 one ends are mobilizable the connection with a fixed block 16, the other end of this block 5 is connected with an end of a spring 9, the other end of this spring 9 also is packed on the valve body 3, in spool 6, be provided with spool bore 7, in valve body 3, be provided with through hole 17 that matches with spool bore 7 and the pore 18 that matches with air valve 10, for fear of spool 6 block 5 when valve body 3 intrinsic displacements spool bore 7 of spool 6 is stopped up, also be provided with the air drain 19 that matches with block at two ends near spool 6; On the two ends of cylinder barrel 1 end cap 20, respectively be provided with two and cylinder barrel, the one-way valve 8 that is connected, two valve openings 21 promptly respectively are set on the end cap 20 of cylinder barrel 1 two ends, cylinder barrel is connected with separately one-way valve 8 by each valve opening 21, among the embodiment on the end cap of cylinder barrel two ends respectively two one-way valves 8 of setting be one-in-and-one-out.

Cylinder double as water vat of the present utility model, the inboard of two pistons is cylinder A chamber and B chamber, the outside is water vat C chamber and D chamber, initial state of the present utility model shown in Figure 2, spool travel stretches into the A chamber, there is the body of calming the anger to enter the A chamber by the input spool of the P1 hole in the through hole and through spool bore, the chamber internal air pressure increases, push the piston in left side to left, piston by connecting rod drive right side moves to left synchronously again, this moment, the B intracavity gas entered atmosphere by the 0b3 hole in spool bore and the through hole, piston when the right side brushes up against block, make the short pin of block break away from the spool right side, the body of calming the anger in the A chamber is pushed spool to the B chamber at this moment at once, brush up against till the long pin of right side block, left side block in the A chamber is upspring immediately simultaneously, its short pin blocks the spool left side, realize automatic reverse, to the inflation of B chamber, the exhaust of A chamber, two pistons all move to right, brush up against corresponding block until left hand piston, spool is newly pushed to the A chamber by the body weight of calming the anger in the B chamber, once more commutation, effect so repeatedly, make the continuous to-and-fro motion of two pistons, alternately change C chamber and D chamber volume, realize suction and setting-out start, if two pistons and spool are in very position, can not start voluntarily after the ventilation, can push the manual two-position three way air valve several seconds, make source of the gas directly enter the A chamber by pore P2 place, promote piston to stroke terminal, this water pump of back continuous operation automatically of letting go.

Claims

1. full Pneumatic water pump, it comprises cylinder barrel, the end cap at cylinder barrel two ends, be contained in the piston in the cylinder barrel, valve body, be contained in the spool in the valve body, the air valve that is connected with cylinder barrel, it is characterized in that: in cylinder barrel, be fixed with valve body, in valve body, accommodate spool, both sides at valve body respectively are provided with a piston, the connecting rod that connects two pistons passes valve body, both sides at valve body also are fixed with the block that matches with spool, in spool, be provided with spool bore, in valve body, be provided with through hole that matches with spool bore and the pore that matches with air valve, on the end cap of the two ends of cylinder barrel, respectively be provided with two one-way valves that are connected with cylinder barrel.

2. by the described full Pneumatic water pump of claim 1, it is characterized in that: the both sides at valve body are provided with fixed block, block has unequal leg, approximate L-shaped, one end of block is mobilizable the connection with fixed block, the other end of this block is connected with an end of a spring, and the other end of spring also is packed on the valve body.

3. by the described full Pneumatic water pump of claim 1, it is characterized in that: two valve openings respectively are set on the end cap of cylinder barrel two ends, and cylinder barrel is connected with separately one-way valve by each valve opening; Each two one-way valve that are provided with is one-in-and-one-out on the end cap of cylinder barrel two ends.