CN201212463Y

CN201212463Y - Compartment drug supplying pump

Info

Publication number: CN201212463Y
Application number: CNU2008200138651U
Authority: CN
Inventors: 刘万松
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-08
Filing date: 2008-07-08
Publication date: 2009-03-25
Anticipated expiration: 2018-07-08

Abstract

The utility model relates to a segmented pesticide application pump. A pump body is provided with two supporting shells which are communicated with the pump body, the upper parts of the supporting shells are respectively provided with a medical solution inlet valve body and a medical solution outlet valve body, and the medical solution inlet valve body is connected with an inlet valve seat which is internally provided with a spring, wherein the spring is provided with a valve ball. The medical solution outlet valve body is connected with an outlet valve seat, a valve ball is arranged between the outlet valve seat and an outlet valve body, and the valve ball is provided with a spring. The pump body is connected with a pump seat, the middle part of the pump seat is provided with a shaft sleeve, and the shaft sleeve which is provided with outside threads is inserted into a through hole of a fixation plate and is located by a nut. The shaft sleeve is internally provided with a drive rod, the upper end top of the drive rod extending outside the shaft sleeve is provided with a membrane support, the membrane support is provided with a pump membrane, the membrane support and the pump membrane are fixed to the upper end of the drive rod by a sealing screw, and the periphery of the membrane is fixed between the pump body and a flange of the pump seat. A spring is sleeved outside the lower part of the drive rod which extends outside the shaft sleeve, the upper end of the spring is locked on the shaft sleeve, and the lower end of the spring is locked on a plain cushion on the drive rod. The utility model can discontinuously provide power to pesticides injected into the earth and has corrosion resistance.

Description

Compartment dispenser pump

Technical field the utility model relates to the used pump of a kind of pump, particularly farm machinery.

Background technique prevents disease and pest for germ and the parasite of killing in the soil, and people inject agricultural chemicals in soil.Because agricultural chemicals imposes on below the face of land, need apply certain external force when therefore injecting.At present this external force is mostly from manually, and its deficiency is: the toxicity of agricultural chemicals is big, and people and its close contact are toxic to human body.Therefore have the people to adopt common pump that agricultural chemicals is imported in the soil, its deficiency is: the pump that has is continuous operation, causes pump to inject agricultural chemicals continuously in soil, not only cause waste, and bactericidal effect is also bad; Agricultural chemicals corrosivity is stronger in addition, if its moving element generation corrosion can influence the proper functioning of pump.

The summary of the invention the purpose of this utility model is to provide a kind of can provide power and the corrosion resistant special-purpose compartment dispenser pump of moving element to injecting the soil agricultural chemicals.

The utility model mainly includes the pump housing, pump seat and pump diaphragm.The main body of its middle pump body is the arch housing that Open Side Down, can store soup in this arch chamber.Be provided with two housings that is communicated with it on the main body of this pump housing, its free end portion in a tubular form.Soup import valve body is established on the top of one of them housing, and the medicine liquid outlet valve body is established on the top of another housing.No matter be import valve body or outlet valve body, they all are pipe joint shape, the axial hole that runs through two ends are arranged in promptly, nut is established at the middle part, outside, and free end one side is established interface, (preferably establishing the anticreep pressure cap that is threaded with it), fixed end one side is established outside thread, and it is threaded with a housing free end.But the outside thread of soup import valve body fixed end divides two sections, one section internal thread with a housing of major diameter is meshed, the import valve body is fixed on the housing, and one section internal thread with import valve seat upper end of minor diameter is meshed, and the import valve seat is fixed on the import valve body.This import valve seat is the upper shed circular groove, and preferably the outside on top is prismatic, so that install.Bottom land is established into medicine through hole.Establish spring in the bottom land of this valve seat, establishing on it can be with the valve ball of import valve body lower ending opening shutoff, and it is ceramic ball preferably, moves up and down freely from heavy and light first, and it is corrosion-resistant in addition.Medicine liquid outlet valve body fixed end is also established internal thread, and its outside thread with the outlet valve seat is meshed, and the outlet valve seat is fixed on this outlet valve body.This outlet valve seat profile is screw-like, in establish axial hole.Be provided with valve ball in the space between this outlet valve seat upper end and the outlet valve body, preferably ceramic ball is provided with spring on valve ball.

The downward open circumferential of the above-mentioned pump housing is managed orchid, and it links to each other by the link on the flange with pump seat, adopts plastic material as the pump housing, is preferably in pump housing flange outside and establishes the protecting cover that increases its intensity and sealing.The trough-shaped housing that this pump seat has an opening to make progress is established a through hole at this trough-shaped housing middle part, is fixed with the upper end of axle sleeve on it, and this is provided with in the through hole that externally threaded axle sleeve is inserted in fixed plate, and is located by nut.In above-mentioned axle sleeve, be provided with a driveshaft, the top that this drive rods extend goes out axle sleeve is positioned at pump seat, the end top is provided with the holder of a ring film, be preferably the dish pad, in this film holder, be provided with the ring pump diaphragm, the barrier film of this cross section undulate can be a poly tetrafluoroethylene, but the composite membrane that fits together of teflon and rubber preferably.The sealing screw that passes barrier film, film holder central through bore not only is fixed on barrier film the upper end of driveshaft but also makes diaphragms and following face seal.The periphery of above-mentioned barrier film places between the flange of the pump housing and pump seat and is fixing.The outside, bottom that above-mentioned drive rods extend goes out axle sleeve is with spring, and the upper end of this spring is stuck on the axle sleeve, and the lower end is stuck in by on the plain cushion that is fixed on the back-up ring location on the driveshaft.

This pump will link to each other import valve body interface in use on the one hand with the container that stores soup, outlet valve body interface links to each other with device for administration of drugs; By fixed plate this dispenser pump is fixed on and can walks mechanically on the other hand, and the driveshaft lower end is corresponding with the star cam.When external force drove the star cam rotation, during end in contact, the spring on the driveshaft just pushed away driveshaft downwards, so the barrier film that is fixed on the driveshaft just moves downward thereupon under its sunk part and the driveshaft.Because between the pump housing and the barrier film is airtight space, barrier film moves downward just and feeds, outlet valve all applies a downward power.When outlet valve is subjected to downward power, add gravity, valve ball just drops in the upper shed of outlet valve seat, with the outlet valve shutoff.And inlet valve is subjected to downward power, and its valve ball overcomes elastic force and moves downward, and forms the gap between the import valve body under shed, and soup is then from this gap sucks pump chamber on barrier film.When under star cam lobe part and the driveshaft during end in contact, just driveshaft is upwards pushed away, just move upward so be fixed on the barrier film of driveshaft upper end, owing to be airtight space between the pump housing and the barrier film, barrier film moves upward and just feeds, outlet valve all applies a power that makes progress thereupon.When inlet valve is subjected to power upwards, its valve ball upwards is pushed on the under shed of import valve body, stop up medicine liquid channel, and outlet valve is subjected to power upwards, though its valve ball is upwards pushed away,, make between valve ball and the outlet valve body and form the gap because of stopping of spring arranged above it, so the soup on barrier film top just is pushed into outlet valve, and have certain pressure from the discharge of outlet valve body interface.

The utility model compared with prior art has following advantage;

1 can replace manually and applies soup to soil discontinuously, has alleviated people's labor intensity widely.

2 composite membrane good springiness make the soup of discharge have bigger pressure, to enter in the soil smoothly.

3 moving element composite membranes are corrosion-resistant, long service life, be common poly tetrafluoroethylene 3-5 doubly.

4 moving elements potteries valve ball is corrosion-resistant, and flexible operation makes that pump moves reliably and with long-term, formulation rate is accurate.

Description of drawings

Fig. 1 is that the utility model master looks generalized section.

Fig. 2 is Fig. 1 inlet valve part enlarged diagram.

Fig. 3 is Fig. 1 outlet valve part enlarged diagram.

Embodiment is looked in the generalized section the master of compartment dispenser pump shown in Figure 1, the main body of the arch plastics pump housing 1 that Open Side Down is provided with two housings that is communicated with it, its free end top is in a tubular form all advanced 3 outlet valve bodies 4 with soup respectively by the metal sleeve of establishing in separately 2 and is linked to each other, this two valve body all is pipe joint shape, it is imported and exported on the free-ended interface of valve body and all establishes the anticreep pressure cap 5 that is threaded with it, its fixed end one side is established the outside thread that is threaded with a housing free end, but the outside thread of soup import valve body fixed end divides two sections, one section internal thread with a housing of its major diameter is meshed, and one section internal thread with import valve seat 6 upper ends of minor diameter is meshed.Top, this import valve seat outside be prism, and bottom land is established into medicine through hole, in establish spring 7, establish ceramic valve ball 8 on this spring.Medicine liquid outlet valve body fixed end also is provided with internal thread, and its outside thread with outlet valve seat 9 is meshed, and is provided with ceramic valve ball 10 in the outlet valve seat upper end of establishing axial hole in this and the space that exports between the valve body, is provided with spring 11 on valve ball.The above-mentioned pump housing is connected by flange with pump seat, establishes protecting cover 12 in pump housing flange outside.

Through hole is established at the middle part of plastics pump seat 13 trough-shaped housings, is fixed with the upper end of axle sleeve 14 on it, and this is provided with in the through hole that externally threaded axle sleeve is inserted in fixed plate 15, and with nut 16 location.In above-mentioned axle sleeve, be provided with a driveshaft 17, its top of stretching out axle sleeve is positioned at pump seat, the end top is provided with a film holder 18, is provided with the teflon of cross section undulate and the combined pump barrier film 19 of rubber in this film holder, and they are fixed on the driveshaft upper end by sealing screw 20.The periphery of above-mentioned barrier film is fixed between the flange of the pump housing and pump seat.The outside, bottom that above-mentioned drive rods extend goes out axle sleeve is with spring 21, and the upper end of this spring is stuck on the axle sleeve, and the lower end is stuck in by on the plain cushion 23 that is fixed on back-up ring 22 location on the driveshaft.

Claims

1 one kinds of compartment dispenser pumps, it is characterized in that: the main body of the arch pump housing that Open Side Down is provided with two housings that is communicated with it, its free end top is in a tubular form established soup respectively and is imported and exported valve body, this two valve body all is pipe joint shape, its fixed end one side is established the outside thread that is threaded with a housing free end, but the outside thread of soup import valve body fixed end divides two sections, one section internal thread with a housing of its major diameter is meshed, one section internal thread with import valve seat upper end of minor diameter is meshed, this bottom land is established in the import valve seat of medicine through hole into and is provided with spring, establish valve ball on it, medicine liquid outlet valve body fixed end also is provided with internal thread, its outside thread with the outlet valve seat is meshed, should in be provided with valve ball in outlet valve seat upper end of establishing axial hole and the space that exports between the valve body, on valve ball, be provided with spring, the above-mentioned pump housing is connected by flange with pump seat, through hole is established at the middle part of pump seat trough-shaped housing, be fixed with the upper end of axle sleeve on it, this is provided with in the through hole that externally threaded axle sleeve is inserted in fixed plate, and locate with nut, in above-mentioned axle sleeve, be provided with a driveshaft, its top of stretching out axle sleeve is positioned at pump seat, the end top is provided with a film holder, in this film holder, be provided with the pump diaphragm of cross section undulate, they are fixed on the driveshaft upper end by sealing screw, the periphery of above-mentioned barrier film is fixed between the flange of the pump housing and pump seat, the outside, bottom that above-mentioned drive rods extend goes out axle sleeve is with spring, and the upper end of this spring is stuck on the axle sleeve, and the lower end is stuck in by on the plain cushion that is fixed on the back-up ring location on the driveshaft.

2 compartment dispenser pumps according to claim 1, it is characterized in that: barrier film is the composite membrane that teflon and rubber fit together.

3 compartment dispenser pumps according to claim 1 and 2 is characterized in that: the valve ball in the inlet/outlet valve is ceramic ball.

4 compartment dispenser pumps according to claim 3 is characterized in that: the outside on import valve seat top is for prismatic.

5 compartment dispenser pumps according to claim 4 is characterized in that: import and export on the free-ended interface of valve body and establish the anticreep pressure cap that is threaded with it.

6 compartment dispenser pumps according to claim 5 is characterized in that: establish protecting cover in pump housing flange outside.