CN2209853Y

CN2209853Y - Device for deeply distributing fertilising liquid

Info

Publication number: CN2209853Y
Application number: CN 94229845
Authority: CN
Inventors: 刘文龙
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-11
Filing date: 1994-11-11
Publication date: 1995-10-18
Anticipated expiration: 2004-11-11

Abstract

The utility model relates to a deep-applying device for liquid fertilizer which is matched with an existing sprayer. Liquid fertilizer and pesticide can be injected to soil through the deep-applying device for liquid fertilizer. The deep-applying device for liquid fertilizer is composed of a spray liquid pot, a piston pump, a rocker arm, a liquid outflow valve seat, a one-way ball valve, an infusion pipe, a spray rod, and an injection needle which is provided with pores with equal layer distribution and is arranged at the front end of the spray rod. The opening of the upper end of the liquid outflow valve seat is sealed through a pressurizing screw in which a spring is fixed for pressing the one-way ball valve. Thus, a little liquid in the spray liquid pot can be prevented from flowing through the one-way ball valve and is leaked from the injection needle when the deep-applying device for liquid fertilizer is not operated. A hole is also arranged on the pipe wall of the pressurizing screw. The liquid flowing through the one-way ball valve can smoothly flow to the injection needle for deep applying to crops in a working process.

Description

Device for deeply distributing fertilising liquid

The utility model belongs to agricultural fertilizer machinery, particularly is used with existing sprayer, crops is carried out the liquid fertilizer deep applicator of deep placement.

Existing sprayer generally be with liquid fertilizer or pesticide spraying on crops, can't carry out deep placement.Chinese patent 89200969.1 discloses a kind of " soil injection sprayer ", and this sprayer can help the absorption of crops with the soil of chemical fertilizer or the close crop root part of agricultural chemicals liquid injection.This sprayer is made up of the non-return valve in spraying flow container, piston pump, piston pump connecting rod, rocking arm, amount control, fluid valve seat, the fluid valve seat, fluid tube connector (threeway), transfusion sebific duct, spray boom, injection needle, its fluid valve seat upper end open is the sealing of threeway upper end open, 6 apertures that distributing of the first-class layer of injection needle tube wall.The shortcoming of this patent is: in the course of work not, because the potential energy effect of spray liquid pot liquid will have a spot of liquid by non-return valve, leak from injection needle, thereby cause waste, also be unfavorable for keeping.

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art part, and a kind of liquid fertilizer deep applicator that is used with sprayer is provided, and overcomes the shortcoming that liquid easily leaks in the prior art.

Solution of the present utility model is: a kind of liquid fertilizer deep applicator, form by the non-return valve in spraying flow container, piston pump, piston pump connecting rod, rocking arm, fluid valve seat, the fluid valve seat, fluid tube connector, transfusion sebific duct, spray boom, injection needle, be characterized in that water outlet valve seat upper end open seals it with a supercharging screw, wherein the supercharging screw has blind hole from the end of threaded shank, fix a spring in the blind hole, the spring tail end is pressed on the non-return valve, and the supercharging screw hole walls is provided with fluid hole.Its course of work is: by upwards mentioning rocking arm, driving the piston pump connecting rod moves upward, thereby make piston pump suck liquid, through the fluid valve seat, the jack-up non-return valve, liquid flows into the fluid tube connector from the fluid hole of supercharging screw, through transfusion sebific duct, spray boom, injection needle chemical fertilizer is injected in the soil then.Because fluid valve seat upper end open is pressurized the screw sealing, the liquid that enters the fluid tube connector is the pressure extrusion by piston pump, so the fluid mode is to spray along with shaking of rocking arm forms discontinuous.Under working condition not, because the supercharging screw is to push down non-return valve by spring,, prevent that liquid from flowing through non-return valve so can overcome the potential energy of spray liquid pot liquid, leak from injection needle.In the solution of the present utility model, can make 6 apertures that distributing of the first-class layer of injection needle tube wall, injection head syringe needle needle tubing diameter is 8～9mm, and the deep placement that utilizes fertilizer is arranged so most.

The utility model advantage compared with prior art: since the utility model at fluid valve seat upper end open place with a supercharging screw with closure of openings, and the supercharging screw has blind hole from the end of screw division, fix a spring in the blind hole, the spring tail end is pressed on the non-return valve, the supercharging screw hole walls is provided with fluid hole, so in when work, the liquid that piston pump extrudes backs down behind the non-return valve and can be smoothly to enter the fluid tube connector through the fluid hole of supercharging screw hole walls; And when not working, spring is pushed down non-return valve, has overcome the potential energy of spray liquid pot liquid, has prevented that liquid from flowing through non-return valve, thereby has avoided the leakage at injection needle place again, helps saving fertilizer and is convenient to keeping.

The utility model can further specify in conjunction with the accompanying drawings.

Figure is the utility model supercharging screw, fluid valve seat and fluid tube connector fit structure schematic diagram.

The utility model embodiment is as shown in the figure: non-return valve 2 is arranged in the fluid valve seat 1, fluid valve seat 1 upper end open place by supercharging screw 3 with its sealing, have blind hole 4 on the supercharging screw 3, be fixed with spring 5 in the blind hole 4, spring 5 tail ends are pressed on the non-return valve 2, supercharging screw 3 hole walls 6 are provided with fluid hole 7, and fluid tube connector 8 is fixed on the fluid valve seat 1, and corresponding with fluid hole 7.

Claims

1, a kind of liquid fertilizer deep applicator, by the non-return valve (2) in spraying flow container, piston pump, piston pump connecting rod, rocking arm, fluid valve seat (1), the fluid valve seat (1), fluid tube connector (8), transfusion sebific duct, spray boom, injection needle are formed, it is characterized in that water outlet valve seat (1) upper end open with a supercharging screw (3) with its sealing, wherein supercharging screw (3) has blind hole (4) from the end of threaded shank, fix a spring (5) in the blind hole (4), spring (5) tail end is pressed on the non-return valve (2), and supercharging screw (3) hole wall (6) is provided with fluid hole (7).

2, liquid fertilizer deep applicator according to claim 1 is characterized in that 6 apertures that distributing of the first-class layer of injection needle tube wall, and injection needle needle tubing diameter is 8～9mm.