CN2323880Y

CN2323880Y - Improved shell for atomizing powder sprayer

Info

Publication number: CN2323880Y
Application number: CN 98223064
Authority: CN
Inventors: 吴晓龙
Original assignee: JIANGYIN FARMING MACHINERY PLANT
Current assignee: JIANGYIN FARMING MACHINERY PLANT
Priority date: 1998-01-14
Filing date: 1998-01-14
Publication date: 1999-06-16
Anticipated expiration: 2008-01-14

Abstract

The utility model discloses a shell for an atomizing powder sprayer, which can make blades backwards be arranged. The utility model comprises a shell, a discharging pipe and a valve. The utility model is characterized in that the outlet of the discharging pipe is connected with a movable bent pipe; the movable bent pipe can be rotated surrounding a shaft line on the outlet of the discharging pipe; the radius R of a round coroner of an air passage in the shell can gradually change to the equal radius an inner wall on the outlet of the discharging pipe along counterclockwise direction from smallness to bigness. The utility model can reduce the bending amount of soft pipes. The utility model has the advantages of convenient operation and energy saving.

Description

Improved mist duster casing

The utility model is relevant with duster, and particularly a kind of blade that uses is the modified backpack atomizing sprayer casing of back to the impeller that is provided with.

Chinese patent application 96230702.5 has proposed a kind of backpack mist duster casing, comprise casing, discharge pipe, valve and fixing feet, two left and right half shells that casing, discharge pipe and fixing feet are combined by injection mo(u)lding constitute, the shell edge position of the mutual involutory contact of left and right half casing is respectively recessed (protruding), protruding (recessed) structure, the fixedly flange of usefulness is arranged on the periphery of this left and right half shell, and left and right two halves lump together and have formed the duster casing.The external flexible pipe of the discharge pipe of this casing, flexible pipe connects the hard tube that dusts again.

Though, this casing making is simple, corrosion-resistant etc., but still some shortcomings are arranged, for example, discharge pipe is fixed, like this, can not adjust direction during use, the direction of hard tube of dusting must be undertaken by the flexible pipe that is attached thereto, and hose bending is excessive or too frequent, can make it be easy to fatigue damage.Again for example, all rectangular shape of the air flow channel section of casing when air is flowed through runner, easily produce turbulent flow at the place, right angle, thereby this casing has the big shortcoming of energy consumption.

Therefore, the purpose of this utility model be propose a kind of that reduce the hose bending degree and can improve air-flow operating mode in the runner and be specially adapted to use blade to be the mist duster casing of back to the impeller that is provided with.

The purpose of this utility model is to realize like this.

A kind of blade that uses is the mist duster casing of back to the impeller that is provided with, comprise casing, discharge pipe and valve, it is characterized in that described discharge pipe exit is connecting a movable bend pipe, described movable bend pipe can rotate around the axis in described discharge pipe exit.The radius of corner R of the air duct in the described casing, counterclockwise ascending progressively carrying out the transition to described wind tube outlet place inwall radius equates.

Thus, except hose bending can change the direction of the hard tube that dusts, can also reduce the hose bending amount in use, be convenient to adapt to the needs that all directions are dusted, easy operating like this by the rotation of movable bend pipe.

Simultaneously, because the utility model changes over the right angle of air flow channel in the casing from roundlet and contends cylindric that gradual transition equates with the discharge pipe radius to the end, not only make things convenient for the installation of movable bend pipe, and can significantly reduce the turbulent flow that produces when air is flowed through air flow channel.After tested, the utility model energy consumption reduces 18%, and reduces 2-3 decibel of noise.

Embodiment of the present utility model is described with reference to the accompanying drawings.

Fig. 1 is the schematic diagram of the casing of duster of the present utility model.

Fig. 2 is the partial cutaway schematic of the A-A of Fig. 1.

Referring to Fig. 1 and Fig. 2.A kind of improved duster casing comprises casing 1, valve 2, discharge pipe 3, fixing feet 5, fixedly footmuff 6 and air outlet 8.Offer 2 grooves 13,13 on air outlet 8 inwalls.Movable bend pipe 30 can be made bending in various degree on demand, and in this example, angle is about 90 degree, i.e. right angles between the import of movable bend pipe 30 and the outlet.The entrance point of movable bend pipe 30 has pair of flanges 32a, 32b, during installation, movable bend pipe 30 inserts in discharge pipe 3 outlets, flange 32a, 32b are embedded in the discharge pipe 3 inwall corresponding grooves, metal nuts 12 is tightened, the left and right sides two halves of air outlet 3 are closed up, like this, movable bend pipe 30 axis around the exit in discharge pipe 3 freely rotates, and can not deviate from owing to the effect of flange 32a, 32b again.

Be connected in the flexible pipe (not shown) in rotation activity bend pipe 30 exits, the suction inlet 38 on the movable bend pipe 30 is used for sucking and dusts etc.

In order to make air outlet 8 rounded so that be connected with movable bend pipe 30, air flow channel 14 adopts arc transition in the present embodiment, promptly the B from the A-A section begins, the right angle of former air flow channel makes circular arc into, its radius R is with counterclockwise progressively increasing, during to air outlet 8, its radius equals the radius of air outlet 8.

Certainly, the method for attachment of air outlet in the utility model 8 and movable bend pipe 30 has multiple, for example the tongue and groove in the present embodiment is connected to change emboss pit into and connect, and movable bend pipe 30 is enclosed within on the air outlet 8 and in addition tongue and groove connection etc.These methods all should be within the scope of claim protection of the present utility model.

Claims

1. one kind is used blade to be the mist duster casing of back to the impeller that is provided with, comprise casing, discharge pipe and valve, it is characterized in that described discharge pipe exit is connecting a movable bend pipe, described movable bend pipe can rotate around the axis in described discharge pipe exit.

2. casing as claimed in claim 1 is characterized in that the outer tube wall of the import department of described movable bend pipe is provided with flange, is embedded in the groove of described casing wind tube outlet place inwall.

3. casing as claimed in claim 1, it is characterized in that, offer flange on the described casing wind tube outlet place outer wall, offer on import department's inwall of described movable bend pipe and the corresponding groove of above-mentioned flange, the groove of this activity bend pipe is embedded on the flange on the above-mentioned wind tube outlet place outer wall.

4. casing as claimed in claim 1, it is further characterized in that, the radius of corner R of the air duct in the described casing, counterclockwise ascending progressively carrying out the transition to described wind tube outlet place inwall radius equates.