CN2254633Y

CN2254633Y - Knapsack sprayer

Info

Publication number: CN2254633Y
Application number: CN 96223672
Authority: CN
Inventors: 魏登忠
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-09-12
Filing date: 1996-09-12
Publication date: 1997-05-28
Anticipated expiration: 2006-09-12

Abstract

The utility model discloses an agricultural knapsack sprayer. A spray rod of the agricultural knapsack sprayer is composed of two sections or more than two sections of sleeve pipes which are sheathed. One end of an inner sleeve pipe is connected with a spray head, and one end of an outer sleeve pipe is provided with a joint which is connected with a valve. The connecting position of the inner sleeve pipe with the outer sleeve pipe is fixed by screw nuts. The circumference of a center hole of a fixing seat is provided with a groove, the bottom of the groove is provided with a refluxing hole, and The upper part of a medicine liquid barrel is provided with a via hole corresponding to the refluxing hole. The length of the spray rod of the utility model can be adjusted at will, and the utility model has the advantages of medicine spraying range enlargement, labor intensity reduction for a user, and convenient use. The arrangement of the refluxing hole solves the phenomenon that medicine liquid is leaked because of the work of a piston rod.

Description

Knapsack sprayer

The utility model relates to a kind of agricultural knapsack sprayer.

Mainly there are following two problems in the at present domestic knapsack sprayer that generally uses: the one, and spray boom is a single pole, length is fixed, as running into rainy day ground mire, the quite difficulty of just spraying insecticide in the field is in addition because spray boom is shorter, spray medicine scope is little, has increased the weight of peasant's labour intensity; The 2nd, the piston rod head place lacks leak-proof measure, often has soup to overflow from here during piston rod work, causes user's clothes, skin to sustain damage, and can cause poisoning when serious.

The purpose of this utility model is to provide the knapsack sprayer that a kind of spray bar length is adjustable, prevent medicine liquid leakage.

The purpose of this utility model is achieved through the following technical solutions: this sprayer comprises that mainly medicinal liquor barrel, high pressure kettle, infusion tube, spray boom, shower nozzle, swing arm, piston tube and holder constitute, piston tube places in the medicinal liquor barrel, the piston tube upper end stretches out medicinal liquor barrel and is threaded with holder, the high pressure kettle is connected with piston tube by tube connector, infusion tube one end is communicated with the high pressure kettle, the other end is connected with handle, valve, spray boom and shower nozzle in turn, piston rod is stretched out by the centre bore on the holder, swing arm and the loose joint of piston club head; Spray boom is to be socketed to form by two joints or the above sleeve pipe of two joints, the inwall matched in clearance of the outer wall of inner sleeve and outer tube, and an end of inner sleeve connects with shower nozzle, and an end of outer tube is provided with joint, and joint connects with valve, and inside and outside sleeve pipe junction is fixed by nut; Around the centre bore of holder is groove, and bottom portion of groove has return port, and medicinal liquor barrel top and return port corresponding position have through hole.

As seen from the above technical solution, spray boom of the present utility model adopts the above sleeve pipe of two joints to be socketed to form, length can be regulated arbitrarily, has enlarged spray medicine scope, and the work that has solved existing sprayer is subjected to the spray bar length restriction and causes the problem that inconvenience and labour intensity strengthen when using; Have return port on the degree of fixation, fundamentally stopped because piston rod work causes the phenomenon of medicine liquid leakage.

Description of drawings:

Fig. 1 is the utility model structural representation;

Fig. 2 is the spray boom structural representation;

Fig. 3 is the fixed seat structure schematic diagram.

The utility model is described in further detail below in conjunction with accompanying drawing:

Referring to shown in Figure 1, the utility model comprises that mainly medicinal liquor barrel 1, high pressure kettle 2, infusion tube 3, spray boom 4, shower nozzle 5, swing arm 6, piston tube 7 and holder 8 constitute, piston tube 7 places in the medicinal liquor barrel 1, piston tube 7 upper ends stretch out medicinal liquor barrel 1 and are threaded with holder 8, high pressure kettle 2 is connected with piston tube 7 by tube connector 17, infusion tube 3 one ends are communicated with high pressure kettle 2, the other end is connected with handle 10, valve 11, spray boom 4 and shower nozzle 5 in turn, piston rod 9 is stretched out by the centre bore on the holder 8 15, and swing arm 6 is hinged with piston rod 9 bar heads; Referring to shown in Figure 2, spray boom 4 is socketed to form by two joint sleeve pipes, the inwall matched in clearance of the outer wall of inner sleeve 18 and outer tube 19, one end of inner sleeve 18 has external screw thread to connect with shower nozzle 5, one end setting of outer tube 19 is furnished with the joint 12 of internal thread, and joint 12 connects with valve 11, and inside and outside sleeve pipe junction is fixing by nut 13, also be provided with a limit screw 20 on the nut 13, leak-proof gasket 14 is set in the nut 13; Referring to shown in Figure 3, be groove around the centre bore of holder 8, bottom portion of groove has return port 16, and medicinal liquor barrel 1 top and return port 16 corresponding positions have through hole 21.Processing technology of the present utility model and manipulate same as the prior art.

Claims

1, a kind of knapsack sprayer, mainly comprise medicinal liquor barrel (1), high pressure kettle (2), infusion tube (3), spray boom (4), shower nozzle (5), swing arm (6), piston tube (7) and holder (8) constitute, piston tube (7) places in the medicinal liquor barrel (1), piston tube (7) upper end stretches out medicinal liquor barrel (1) and is threaded with holder (8), high pressure kettle (2) is connected with piston tube (7) by tube connector (17), infusion tube (3) one ends are communicated with high pressure kettle (2), the other end is connected with handle (10) in turn, valve (11), spray boom (4) and shower nozzle (5), piston rod (9) is stretched out by the centre bore (15) on the holder (8), swing (6) bar and the loose joint of piston rod (9) bar head; It is characterized in that: spray boom (4) is to be socketed to form by two joints or the above sleeve pipe of two joints, the inwall matched in clearance of the outer wall of inner sleeve (18) and outer tube (19), one end of inner sleeve (18) connects with shower nozzle (5), one end of outer tube (19) is provided with joint (12), joint (12) connects with valve (11), and inside and outside sleeve pipe junction is fixing by nut (13); The centre bore (15) of holder (8) is groove all around, and bottom portion of groove has return port (16), and medicinal liquor barrel (1) top and return port (1 6) corresponding position have through hole (21).

2, knapsack sprayer according to claim 1 is characterized in that: a leak-proof gasket (14) is set in the nut (13).