JPS6024431Y2 - Continuous manual sprayer - Google Patents

Description

[Detailed explanation of the idea] This proposal concerns a continuous spray.

Manual sprayers that spray by moving a piston up and down within a cylinder are widely known, but
Normally, the liquid is only sprayed when the piston descends, but is not sprayed when the piston rises because the liquid is sucked into the cylinder.

The present invention is designed to spray when the piston moves up and down, is operable with a lever, and has an excellent appearance.

The drawings will be explained below. 1 is a container body and 2 is a top wall thereof.

A recess 3 is formed on the upper surface of the central portion of the top wall, and a cylinder insertion hole 5 is formed at the center of the bottom wall 4 of the recess.

A cylinder 6 is vertically disposed inside the container body.

The cylinder 6 has a suction valve 7 on the inner surface of the lower part, and a flexible suction pipe 8 is fitted to the lower end to make it possible to suck up the liquid inside the container by creating a negative pressure inside the cylinder. The outward flange 9, which is inserted through the cylinder insertion hole and attached to the upper end, is engaged with the bottom wall of the recess and is caused to hang down.

The lower part of the outflow pipe 11 of the spray member 10 is inserted into the cylinder.

The spray member has an outflow pipe 11 whose upper part is bent forward, and a spray head 12 fitted to the tip of the outflow pipe.A piston 13 is provided on the outer periphery of the lower end of the outflow pipe, and a three-way valve 14 is provided inside the lower end. and has a discharge valve 19 in the tip.

The piston 13 may be formed by attaching a skirt-like part to the outer circumference of the lower end of the outflow pipe, and the three-way valve 14 has a large inner diameter part at the lower part of the outflow pipe hole 11a, which forms the valve chamber 15, and a ball inside the valve chamber. Fit the valve 16.

The outflow pipe opening from the valve chamber to the lower end is the inflow hole 17, and the upper edge on the valve chamber side is the valve seat.

Further, an inlet/outlet hole 18 is bored through which the inside of the valve chamber is constantly communicated with the cylinder chamber 6b above the piston.

The three-way valve will be described later.

The discharge valve 19 may be formed as shown.

The inner diameter of the distal end of the outflow pipe is made into a large inner diameter part 11b, and the spray head 12 having a nozzle hole 2a is fitted into the front end wall with the valve body member 20 mounted therein.

The valve body member 20 has a ring-shaped portion 2 whose middle portion is elastically deformable.
Plate parts 21, 21 are attached to both ends of the rod section 0a, and an insertion rod part 22 is protruded from the center of the rear end surface of one of the plate parts, and the insertion rod part 22 is inserted into the outflow pipe hole. The plate portion 21 on the side having the insertion rod portion 22 is pressed into contact with the outward step portion formed to form the large inner diameter portion 11b to form the discharge valve 19, and the other plate is attached to the inner surface of the front end wall of the spray head. It is only necessary to press the portion 21 into contact with each other.

It is preferable to form a spin groove communicating with the nozzle hole on the inner surface of the front end wall or on the surface of the plate portion that comes into pressure contact with the front end wall.

A backing 24 has an engaging element 23 protruding from the upper outer surface of the outflow pipe, and a backing 24 through which the outflow pipe is inserted onto the flange of the cylinder.
is placed and the backing is fitted into the recess 3.

Further, by inserting the outflow pipe portion between the backing and the engaging element 23 and attaching the coil spring 25, the spray member is biased upward.

26 is a cap in which the upper part of the spraying member is housed inside and fitted onto the upper part of the container body, and a spraying window 28 is provided in the front part of the nozzle hole in the front wall 27, and the spraying window hole 28 is connected to the rear part of the top wall 29. An operation window hole 30 is bored through the upper part of the rear wall.

Further, a lever 31 for pushing down the spray member is attached inside the spray member.

The lever has a pair of parallel side plates 32, 32 connected at their intermediate and rear portions by a connecting plate 33, 34, so that pins 35, 35 protruding from the outer surface of the front end of each side plate are attached to the side wall of the cap. It is rotatably fitted to the inner surface.

The intermediate connecting plate part 33 is placed on the upper surface of the bent part of the outflow pipe with the spray member at the upper limit to form a point of action 36, and the rear connecting plate part 34 is projected rearward and upwardly together with the rear part of the side plate part. It is.

The rear connecting plate portion is engaged with the inner surface, and an operating member 37 having an inverted cross section is provided inside the cap operating window hole.

The operating member has a top wall portion 38 and a hanging wall portion 39, and the outer surface of these walls closes the normal operation window hole 30.

In the above configuration, when the operating member 37 is pressed down, the lever 31 swings downward using the pins 35, 35 as fulcrums by pushing down the rear connecting plate part 34, and the spraying member 10
falls against the elasticity of the coil spring 24.

At this time, since the suction valve 7 is in a closed state, the inside of the cylinder chamber below the piston is pressurized, and the water is sprayed from the nozzle hole 12a through the inlet hole 17 of the three-way valve, the outlet pipe hole 11a1, and the discharge valve 7.

Due to the lowering of the piston, the upper cylinder chamber 6b of the piston
becomes wider and becomes negative pressure, but since the inlet/outlet hole 18 is provided, a portion of the liquid that enters the valve chamber from the inflow hole enters the cylinder chamber above the piston.

Next, when the operating member is released, the spraying member, lever, and operating member are pushed up by the elasticity of the coil spring, but as the piston rises, the suction valve 7 opens and liquid is sucked into the cylinder chamber below the piston, and the ball valve 16 opens the inlet valve 7. The hole 17 is closed, and the cylinder chamber above the piston is narrowed and pressurized, and the liquid in the chamber passes through the inlet/outlet hole 18 and flows into the outflow pipe hole 1.
It is sprayed through the 1a1 discharge valve 19.

As the liquid in the container decreases, the pressure inside the container becomes negative, but another valve may be provided on the top wall of the container to prevent this negative pressure. A slight gap may be provided between them.

The present invention has the above-mentioned structure, in which a three-way valve 14 is formed at the lower end of the outflow pipe inserted into the cylinder, and the cylinder mouth is sealed with a backing 24, so that when the spraying member descends, the liquid in the cylinder chamber below the piston flows out from one side. The liquid is sprayed through the tube hole and the nozzle hole, and on the other hand, it flows into the cylinder chamber above the piston, and when the piston rises, the liquid inside the cylinder above the piston is sprayed, and the liquid inside the container flows into the cylinder chamber below the piston. Therefore, it is convenient to be able to spray continuously in this way, and since the spraying member is pressed down via the lever 31, it can be done with a small amount of force, and furthermore, it is not necessary to directly operate the lever. Instead, the operation is easy because it is only necessary to vertically press down the top wall via the operation member 37.

The structure is relatively simple and can be manufactured at low cost.

[Brief explanation of drawings]

Figure 1 is a vertical cross-sectional view of the proposed spray, Figure 2 is Figure 1 -
(2) A cross-sectional view taken along the line in the direction of the arrow, and FIG. 3 is a vertical cross-sectional view with the operating member in a depressed state. 1...Container body, 6...Cylinder, 10
...Spray member, 26...Cap, ...Operation member. 31...Lever, 7

Claims (1)

[Scope of utility model registration request] A cylinder 6 having a suction valve 7 on the inner surface of the lower part and vertically installed in the container body 1, and the lower part of the outflow pipe 11 to which a piston 13 is attached are inserted into the cylinder, and the liquid in the cylinder is caused to flow out by the movement of the piston. The nozzle hole 1 of the spray head 12 is attached to the tip of the outflow pipe through the pipe hole 11a.
2a The spraying member 10 is biased upward to enable spraying, and the upper part of the spraying member is housed inside and fitted to the upper part of the container body, and a spraying window hole 28 is provided in the front wall in front of the nozzle hole. In addition, a cap 26 is provided with an operating window hole 30 formed in the rear part of the top wall 29 and the upper part of the rear wall continuous with the top wall 29, and a lever 31 is attached therein to make it possible to push down the outflow pipe at the middle part. It consists of an operating member 37 provided inside the cap operating window hole in the cap so that the rear part can be engaged with the inner surface and the cap can be pressed down from the outside. The lower end of the outflow pipe has an inflow hole 17 that communicates between the cylinder chamber 6a below the piston and the outflow pipe hole 11a and is closed when the piston rises, and the cylinder chamber 6b above the piston and the outflow hole 11a. Entrance/exit hole 1 with constant communication
8. A continuous atomizing spray characterized by being provided with a three-way valve 14.