CN2266279Y

CN2266279Y - Efficient multifunction knapsack hand-operated sprayer

Info

Publication number: CN2266279Y
Application number: CN 96239510
Authority: CN
Inventors: 朱若秋
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-09-01
Filing date: 1996-09-01
Publication date: 1997-11-05
Anticipated expiration: 2006-09-01

Abstract

The utility model relates to a high efficiency multifunctional knapsack manual sprayer. A box cover is connected with a medicine box, and the top part of the box cover is provided with a vent hole. The inner surface of the box cover is provided with a vent valve sheet which is corresponding to the vent hole. A valve body which can move up and down is arranged between a pressure chamber and a piston cylinder. A crank mechanism which is composed of a handle and a connecting rod shaft, the connecting rod shaft which is connected with the handle is supported in a shaft sleeve on a machine body, and the connecting rod shaft is connected with a piston through a hinge connecting rod and a crank. Liquid automatically enters the piston cylinder through the medicine liquid box and then enters the pressure chamber.

Description

The high-efficiency multi-function knapsack hand sprayer

The utility model belongs to the knapsack hand sprayer of spray liquid.

Chinese patent communique the 8th volume discloses a kind of Multifunction backpack plastics sprayer notification number CN2095543U that is made up of spray tank, air chamber, piston pump, base, rocking bar, injecting-unit etc. No. 7, has safety, and is reliable, do not decrease advantages such as plant.Because it adopts piston pump to vacuumize earlier, and liquid is sucked air chamber, the operation effort, efficient is lower, and the complete machine sealing property is relatively poor, maintenance inconvenience.

The purpose of this utility model provide a kind of simple in structure, cost is lower, good seal performance, labour-saving high-efficiency multi-function knapsack hand sprayer.

The purpose of this utility model is achieved in that a kind of high-efficiency multi-function knapsack hand sprayer, it comprises spray tank 1, the braces 21 that is connected with spray tank 1, places balancing gate pit 2, injecting-unit in the spray tank 1, it also comprises the spray tank cover, case lid 18 is connected with spray tank 1, case lid 18 tops are provided with air-vent, and the ventilative accordingly valve block 19 of case lid 18 inner surface settings and air-vent, ventilative valve block 19 are withstood on the annulus at case lid top by Cone valve 20; 2 bottoms, balancing gate pit are connected with spray tank 1 bottom, and balancing gate pit 2 is connected with injecting-unit; The valve body that can move up and down is set between balancing gate pit 2 and the piston cylinder 7, and valve body is made up of last valve block 3, lower disc 5, the passage between last valve block sealing load chambers 23 and the piston cylinder 7, the passage between lower disc 5 sealing spray tanks and the piston cylinder; Crank mechanism is connected by handle 4, with handle and is bearing in pitman shaft 11 in the axle sleeve 12 on the body, and pitman shaft 11 connects to form with piston 3 by hinge connecting rod 6 and crank 9; Crank (9), hinge connecting rod (6), piston (3) are formed the eccentric mechanism piston mechanism; Injecting-unit by spray boom 16, be connected with spray boom close valve handle 14, valve body 15 is formed, valve body 15 communicates with balancing gate pit 2 by tube connector.The outer shape of spray tank 1 of the present utility model is a curved surface shaped, and the spray tank bottom is provided with support 8, is taper convergent-divergent pipe in the valve body 15, and piston cylinder (7) all is arranged on spray tank (1) bottom.

Because the utility model adopts excitation connecting rod piston pump configuration, liquid directly enters piston cylinder automatically by spray tank, enters the balancing gate pit then, has rapid operation, characteristic of simple structure; It is lower to have cost simultaneously, and the complete machine sealing is given birth to can good characteristics.

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

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

Among the figure 1, spray tank, 2, the balancing gate pit, 3, go up valve block, 4, handle, 5, lower disc, 6, the hinge connecting rod, 7, piston cylinder, 8, support, 9, crank, 10, piston, 11, axle, 12, axle sleeve, 13, piston ring, 14, close valve handle, 15, valve body, 16, spray boom, 17, soup case lid sealing ring, 18, case lid, 19, ventilative valve block, 20, Cone valve, 21, braces.

Its operation principle is as follows:

Spray tank 1 is connected with case lid 18, and sealing ring 17 is set therebetween, and case lid 18 was both ventilative, again sealing.Even complete machine is inverted, seepage can not take place yet.Ventilative valve block 19 is withstood on by Cone valve 20 on the annulus at case lid 18 tops and keeps sealing.When liquid in the case reduced the formation vacuum, air entered in the casing around ventilative valve block 19 annulus under action of pressure, when external and internal pressure is consistent, keeps sealing property again.

Because case external pressure unanimity in the case, following diaphragm 5 falls to opening because of deadweight, liquid directly enters piston cylinder 7 automatically by spray tank 1 bottom, automatically open again in the collapsible tube that upper diaphragm 3 enters balancing gate pit 2 and valve body 15, until consistent with spray tank 1 pressure, and other sprayer all will vacuumize earlier, liquid suction pressure chamber.

The moment of handle 4 and crank 9 6.5: 1, effective force is amplified 6.5 times.Handle 4 is supported in the little engineering plastics axle sleeve 12 of coefficient of friction with the pitman shaft 11 of crank, and power transmission power consumption is little, and handle is selected the bigger steel pipe of density for use, and handle 4 place's free ends are downward from gravity, reduces pressing power.When last handle 4, liquid flows into piston cylinder 7 automatically.Promptly mention handle so only need overcome the deadweight of handle, stored the potential energy effect for pressing down.Keep during operating grip that arm is vertical on hand, the up and down posture of underarm is the most laborsaving.Handle 4 can be selected arbitrarily in position, the left and right sides.

Handle 4 makes progress, and piston 10 is downward, and upper diaphragm 3 falls confining pressure chamber 2.Following diaphragm 5 falls, and liquid is full of piston cylinder 7 automatically.Pressing lower handle 4, piston 10 makes progress, and following diaphragm 5 has been sealed water inlet.Fluid pressure makes upper diaphragm 3 open liquid inlet pressure chamber 2.Because balancing gate pit 2 has been full of liquid to shut off valve 15, air is few, so several times behind the pressing handle, the very fast pressure that stores needs in balancing gate pit.Close valve handle 14 under the pressing this moment, and valve opening is under the effect of pressure, fluid, and amplifies to opening mouthful pipeline area than being that speed is accelerated rapidly in 450 times the collapsible tube at area, and this moment, liquid velocity continued to strengthen, liquid droplet energy strengthens, and arrives the nozzle place, and pressure is die-offed.Have add macro-energy droplet with good atomizing effect, stronger power of penetrating and range far away eject.So the spray boom of different nozzles, the nozzle of varying number, different length can reach multi-functional effect.The design of de Laval noz(zle) makes operator's strength that expense is not bigger and receives good effect.The sealing of moving component is the unconcerned sealing of oil, more laborsaving.

It is steel pipe fitting that the utility model removes stalk handle and connecting rod support, and all the other are general-purpose plastics and engineering plastics spare, and are not only laborsaving, efficient, and the back is curved surface shaped, and other sprayer is a parabolic cylinder all, and hyperboloid is more suitable for human body back.General spray tank is that cross section is the same up and down, and the utility model top is slightly wideer, thick than the bottom, and bearing at back does not have heavy bearing down, good looking appearance.Spray tank 1 lower support gusset design science, the material saving.

The porch and the jet hole that enter piston 7 at the top and the bottom soup of spray tank 1 all have filter, ensure the unimpeded of fluid passage, and the safe handling and the nozzle bore of protection piston ring 13 and piston cylinder 7 do not stop up.

Claims

1, a kind of high-efficiency multi-function knapsack hand sprayer, it comprises spray tank (1), the braces (21) that is connected with spray tank (1), places balancing gate pit (2), injecting-unit in the spray tank (1), it is characterized in that it also comprises the spray tank cover, case lid (18) is connected with spray tank (1), case lid (18) top is provided with air-vent, and the ventilative accordingly valve block (19) of case lid (18) inner surface setting and air-vent, ventilative valve block (19) are withstood on the annulus at case lid top by Cone valve (20); Bottom, balancing gate pit (2) is connected with spray tank (1) bottom, and balancing gate pit (2) are connected with injecting-unit; The valve body that can move up and down is set between balancing gate pit (2) and the piston cylinder (7), valve body is made up of last valve block (3), lower disc (5), passage between last valve block (3) sealing load chamber (2) and the piston cylinder (7), the passage between lower disc (5) sealing spray tank and the piston cylinder; Crank mechanism is connected by handle (4), with handle and is bearing in pitman shaft (11) in the axle sleeve (12) on the body, pitman shaft (11), connects to form by hinge connecting rod (6) and crank (9) and piston (3); Crank (9), hinge connecting rod (6), piston (3) are formed the eccentric mechanism piston mechanism; Injecting-unit by spray boom (16), be connected with spray boom close valve handle (14), valve body (15) is formed, valve body (15) communicates with balancing gate pit (2) by tube connector.

2, high-efficiency multi-function knapsack hand sprayer according to claim 1 is characterized in that spray tank (1) outer shape is a curved surface shaped.

3, high-efficiency multi-function knapsack hand sprayer according to claim 1 is characterized in that the soup bottom is provided with support 8.

4, high-efficiency multi-function knapsack hand sprayer according to claim 1 is characterized in that being in the valve body (15) taper convergent-divergent pipe.

5, high-efficiency multi-function knapsack hand sprayer according to claim 1 is characterized in that piston cylinder (7) all is arranged on spray tank (1) bottom.