JPS5813963Y2 - airless sprayer - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improved structure of a so-called simple airless sprayer that is not equipped with a compressor.
For example, an object of the present invention is to realize an adjustment mechanism that can satisfactorily set the spray state of paint.

Hereinafter, one embodiment of the present invention will be described in detail based on the accompanying drawings.

As shown in the figure, the pump body 1 is molded from synthetic resin, and a cylindrical hollow part 2 is formed in the axial direction, and a depressed part 3 is formed on the upper side by the side vertical wall and the bottom plane. A columnar portion 4 is vertically provided below the columnar portion 4, and a suction hole 5 and a discharge hole 6, which communicate orthogonally to the hollow portion 2, are respectively formed.

Further, a cylindrical portion 7 is provided at the front of the pump body 1 and protrudes concentrically with the hollow portion 2 along its axis, and a threaded portion 8 is formed at the tip of the cylindrical portion 7. Ear pieces 9 are provided protruding from the sides of the main body 1 at symmetrical positions.

Then, the cylinder 10 is fitted into the hollow part 2 from the rear of the pump body 1, and the piston 11 is inserted into the cylinder 10 so that its rear end slightly protrudes from the rear end of the hollow part 2, and the button is pressed. A spring 12 is elastically installed between the cylinder 10 and the piston 11.

Further, the cylinder 10 is formed with holes 13 and 14 that communicate with the suction hole 5 and the discharge hole 6 of the columnar portion 4.

Further, a coil 1 is provided in the depressed portion 3 of the pump body 1.
5 and a core 16 is placed on the bottom plane and fixed with a rivet pin 17 via the side vertical wall.

An armature 18 is swingably supported at its upper part by a single-shaped spring 19 from the core 16, and is suspended such that its lower part contacts the rear end of the piston 11.

Further, the cylindrical portion 7 of the pump body 1 has a built-in valve cone 20 that opens and closes the cylinder 10 by the reciprocating motion of the piston 11 to perform a valve action, and a spring 21 and the cylindrical portion I
The nozzle 22 is screwed onto the threaded portion 8 of.

Further, on the lower side of the main body 1, several grooves 23 (shown in the second to fourth figures) are provided in a direction perpendicular to the axis of the main body 1 and on both left and right sides of the columnar portion 4, and a bottom surface located away from the positions of the grooves 23. A screw hole 24 is formed in the hole.

Further, the adjusting member 25 has a surface 26 that extends in the axial direction of the pump body 1 and is fixed to the bottom surface of the body 1, and both free ends of the surface 26 are bent upward so that one of the surfaces 26 is selectively engaged with the groove 23. 27 and 28, the other side of which comes into contact with the rear of the lower end of the armature 18.
A U-shaped groove portion 29 having a button formed thereon and using the columnar portion 4 as a guide in the extending direction from one white end of the line surface.
is formed, and furthermore, a long hole 31 is screwed into the screw hole 24 of the main body 1 via a screw 30.

In addition, in the drawing, one piece 28 of the adjustment member 25 has a buffer rubber 3.
2 is fitted and fixed, and the lower rear end of the armature 18 is brought into contact with it. However, by forming the adjustment member 25 of an elastic material, the above-mentioned piece 28 is directly attached to the armature 1B.
It can also come into contact with.

Further, a buffer member 33 made of rubber or the like is engaged with the side lug 9 of the main body 1 to surround the main body 1 including the cylindrical portion 7, while the inner wall of the case 34 molded from resin A groove portion 35 is formed in the groove portion 35, into which a portion of the buffer member 33 is locked with the iron lid, and the pump body 1 is connected to the electromagnetic solenoid.
Both are suspended within the case 34.

In this case, the case 34 is molded into two vertically divided parts, and when the end faces of the case 34 are engaged with each other, a part of the buffer member 33 is inserted into the groove 35, and when the case 34 is joined with the screw 36. The pump main body 1 is fixedly suspended within the case 34.

Further, a grip 37 is integrally protruded from the case 34, and a switch 38 is protruded from the grip 37 along with a line (not shown) for supplying current to the solenoid coil 15. A housing container 39 is removable, and suction pipes 40 and 41 are connected to the suction hole 5 and discharge hole 6 of the pump body 1 in the container 39.
It is inserted into and hangs down.

In the above configuration, by connecting a commercial power source to the electric line of the fuselage and closing the switch 38 to energize the coil 15, the piston 11 is moved through the armature 18 to compress the spring 12, to compress the spring 12, and to compress the spring 12. The paint in the container 39 is sucked up from the suction hole 5 through the suction pipe 40, and the valve cone 20 is opened and closed by the valve action caused by the compression and elastic action of the spring 21. For example, painting operations are carried out by spraying.

By the way, the swinging area of the armature 18 is formed by a grating (no reference numeral) formed on the pump body 1 and a piece 28 of the adjusting member 25.
The range of reciprocating movement of the piston 11 is determined accordingly. It is necessary to set an optimal movement area for the armature 18 so as to prevent the liquid from spilling out, but in the present invention, as described above, several armatures are installed at regular intervals on the lower surface of the pump body 1 in a direction orthogonal to this axis. Groove 2
9, a piece 27 formed by bending one end of the adjusting member 25 upward is selectively engaged with the groove 28, and a screw hole 24 formed in the lower surface of the main body 1 is formed. ．． ! ,−
The armature 18 is fixed by means of a screw 30 through a long hole 31 formed in the surface 26 of the adjustment member 25.
The swinging range of the armature 1B can be adjusted by varying the distance between the rear end of the lower end and the piece 28 of the adjustment member 25 that comes into contact with it, thereby eliminating the troublesome work of the user having to adjust the spray state of the liquid one by one. It has the advantage that it can be fixedly set and provided in the manufacturing process of the machine body without adding any burden, and this makes this type of simple spray machine even more convenient.

Further, in this case, the groove portion 23 is formed on the bottom surface located on the left and right sides of the columnar portion 4 vertically provided on the lower side of the pump body 1, and extends from one end of the force adjusting member 25 in the direction of its extension into a U-shape. When the bent piece 27 of the adjustment member 25 is engaged with the groove 23, the U-shaped groove 2 is formed in the columnar portion 4.
9 as a guide, the adjustment member 25
can be arranged along the axis of the pump body 1,
Thereby, the swinging range of the armature 18 can be reliably set using the piece 2B of the adjusting member 25 as a stopper at the rear of the lower end of the armature 18.

Another advantage is that the swinging range of the armature 18 can be adjusted functionally by disposing the electromagnetic solenoid on the upper side of the pump body 1 and the adjustment member 25 on the lower side thereof.

That is, according to the present invention, the cylinder 10 and the piston 1
An electromagnetic solenoid is mounted and fixed on the upper side of the pump body 1 which has a piston 1 inside, the upper end of the armature 18 is pivotally connected to the electromagnetic solenoid, and the lower end is opened so as to hang down so as to come into contact with the rear end of the piston 11. , a locking means for selectively fixing the adjusting member 25 at different positions in the axial direction of the main body 1 is formed on the lower side of the main body 1 and the adjusting member 25, so that the swinging area of the armature 18 is controlled by the adjusting member 25. By setting this, you can permanently adjust the spray pattern when assembling the aircraft.
This has the extremely excellent advantage that the user does not have to worry about adjustment work, and can immediately start painting efficiently by simply filling the container 39 with, for example, liquid paint and connecting the power to the circuit including the switch 38. .

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, and Fig. 1 is a side sectional view of the main part of the proposed product, Fig. 2 is a front sectional view of the main part, Fig. 3 is a side view of the main part, and Fig. 4 is a side sectional view of the main part. is a bottom view of the main part.

Claims (1)

[Scope of utility model registration request] The swinging motion of the armature due to the excitation of an electromagnetic solenoid is
The liquid sucked into the cylinder is injected from a nozzle by converting the reciprocating motion of a piston that comes into contact with the armature and penetrates into the cylinder, and the cylinder and piston are housed in a hollow pump body. Also, the electromagnetic solenoid is mounted and fixed on the upper part of the pump body, the armature is opened in the solenoid so as to come into contact with the piston, and the adjustment member is connected to the lower side of the adjustment member and the body. An airless sprayer comprising locking means for selectively fixing the main body at different positions in the axial direction, and using an adjusting member as a stopper to set the swinging range of the armature.