CN2354386Y

CN2354386Y - Electric self-controlling pressure sprayer carried on back

Info

Publication number: CN2354386Y
Application number: CN 98222364
Authority: CN
Inventors: 徐爱军
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-11
Filing date: 1998-09-11
Publication date: 1999-12-22
Anticipated expiration: 2008-09-11

Abstract

The utility model relates to an electric knapsack sprayer capable of automatically controlling pressure. The upper part of a housing is provided with a liquid storing cavity, and an accumulator cell which is arranged in the housing and a pressure tank are arranged on one side of the liquid storing cavity. The lower part of the housing is provided with a direct current motor and a pressure pump, the direct current motor uses the accumulator cell as power supply, and the pressure pump which is driven by the direct current motor inputs medicine liquid to the pressure tank from the liquid storing cavity. A pressure automatic control switch which is communicated with the pressure tank is arranged below the pressure tank, and the on-off of electricity for the direct current motor can be controlled by the pressure automatic control switch. The utility model has the advantages of flexible and convenient use and good atomizing quality.

Description

Back-pack electric is from the pressure control sprayer

The utility model relates to the injection apparatus technical field that has pump, more particularly relates to a kind of agricultural knapsack sprayer.

Present general small-sized knapsack sprayer; its housing all has a pressurization handgrip outward; need push handgrip frequently during work pressurizes; labour intensity is big; inconvenient operation, it is inhomogeneous to atomize, especially in plastic tunnel during operation; usually can allow handgrip scratch plastic sheeting for farm use or the crop branches and tendrils are broken, cause unnecessary loss.The patent No. be ZL96244792.7's " backpack antomobile sprayer ", though use pedal pressurization instead, have awkward defective equally.

The purpose of this utility model provides a kind of easy to use, safe, back-pack electric sprayer that atomizing effect is good.

The technical solution of the utility model is: it has a box housing, housing top has reservoir compartment, reservoir compartment top one side has the accumulator that is installed in the housing, and there is the pressurized tank that is installed in the housing accumulator below, and pressurized tank lower ending opening place is connected with the spray boom of band shower nozzle by flexible pipe.In the pump chamber of lower housing portion, be equipped with by cylinder body, cylinder head and be installed in the force pump that the piston in the cylinder body constitutes.Have inlet and liquid outlet, inlet on the cylinder head of force pump and be communicated with the reservoir compartment bottom by feed tube, liquid outlet is connected with the pressurized tank lower ending opening by drain pipe.Also being equipped with in the pump chamber with the accumulator is the electromotor of power supply, and electromotor is reciprocating in cylinder body by the transmission mechanism driven plunger.The power switch of control electromotor work is installed on housing, a pressure automatic control switch that is communicated with and is electrically connected with the motor power circuit with the pressurized tank lower ending opening also is installed below pressurized tank.

Compare with existing small-sized knapsack sprayer, advantage one of the present utility model is to use conveniently, need not a manual operating pressurization handgrip during work, and labour intensity is little, high efficiency; Two are to use safety, are particularly suitable for dredging in the dish booth using, and the phenomenon of hanging breaking plastic sheeting for farm use or damage crop can not occur; The 3rd, pressurized tank pressure is controlled automatically, and atomization quality is good.

Below in conjunction with drawings and Examples, the utility model is described in further detail.

Fig. 1 is a longitudinal sectional view of the present utility model, shows its overall structure;

Fig. 2 is the A-A cutaway view among Fig. 1.

In the embodiment that accompanying drawing provides, the utlity model has the box-type plastic housing 1 of a profile and existing knapsack sprayer basically identical, the top of housing 1 is reservoir compartment 2, its end face filling opening place has top cover 3.Top one side of reservoir compartment 2 has the 12V lead-acid accumulator 20 that is installed in the housing, there is the pressurized tank 17 that is installed in the lower ending opening in the housing accumulator 20 belows, be connected with the spray boom 18 of band shower nozzle 19 at pressurized tank 17 lower ending opening places by flexible pipe, have operating switch on the spray boom 18.The following of reservoir compartment 2 is pump chamber 4, in the pump chamber 4 by bearing 6 be equipped with one by cylinder body 11, be fixed on the cylinder head 13 of cylinder body 11 1 ends and be installed in the force pump that the piston 10 that has piston ring 12 in the cylinder body 11 its constitutes.Have inlet 14 and the liquid outlet 15 of adorning check valve sheet on the cylinder head 13 of force pump, inlet 14 is communicated with reservoir compartment 2 bottoms by feed tube, and liquid outlet 15 is connected with pressurized tank 17 lower ending openings by drain pipe.Also be equipped with in the pump chamber 4 with accumulator 20 is the small-sized DC motor 5 of power supply, electromotor 5 is reciprocating by transmission mechanism driven plunger 10, this transmission mechanism by a worm gear pair 8,22, be installed in the connecting rod 9 that gear pair 7 on 22 of motor shaft and the worm screws and two ends are hinged on respectively on worm gear 8 and the piston 10 and form.The power switch 21 of control electromotor 5 work is installed on housing 1, a pressure automatic control switch 16 that is connected and is electrically connected with the motor power circuit with pressurized tank 17 lower ending openings also is housed below pressurized tank 17.

During work, turn on the power switch 21, motor 5 driven plunger 10 are reciprocating in cylinder body 11, soup in the reservoir compartment 2 is pressed in the pressurized tank 17, when the pressure in the pressurized tank 17 reaches certain value, just can throw off with two contacts in the pressure automatic control switch 16 that pressurized tank 17 is communicated with, motor 5 outages quit work.After opening the switch work a period of time on the spray boom 18, pressure descends in the pressurized tank 17, and two contacts in the pressure automatic control switch 16 engage again, and motor 5 energisings are pressed into soup once more in pressurized tank 17.

Claims

1, a kind of back-pack electric is from the pressure control sprayer, has a box housing (1), the top of housing (1) has reservoir compartment (2), it is characterized in that reservoir compartment (2) top one side has the accumulator (20) that is installed in the housing (1), there is the pressurized tank (17) that is installed in the housing (1) accumulator (20) below, pressurized tank (17) lower ending opening place is connected with the spray boom (18) of band shower nozzle by flexible pipe, in the pump chamber (4) of housing (1) bottom, be equipped with by cylinder body (11), cylinder head (13) and be installed in the force pump that the piston (10) in the cylinder body (11) constitutes, have inlet (14) and liquid outlet (15) on the cylinder head of force pump (13), inlet (14) is communicated with reservoir compartment (2) bottom by feed tube, and liquid outlet (15) is connected with pressurized tank (17) lower ending opening by drain pipe; Also be equipped with in pump chamber (4) with accumulator (20) is the electromotor (5) of power supply, electromotor (5) is reciprocating by transmission mechanism driven plunger (10), on housing (1), be equipped with control electromotor (5) work power switch (21), below pressurized tank (17), also be equipped with one with pressurized tank (17) lower ending opening pressure automatic control switch (16) that be communicated with and that be electrically connected with the motor power circuit.

2, back-pack electric according to claim 1 is from the pressure control sprayer, it is characterized in that the reciprocating transmission mechanism of said driven plunger by a worm gear pair (8) (22), be installed in the connecting rod (9) that gear pair (7) on motor shaft and the worm shaft and two ends are hinged on respectively on worm gear (8) and the piston (10) and form.