JPS605248A - Sprayer - Google Patents

Abstract

PURPOSE:To provide a sprayer always performing good atomization, constituted so that one end of a liquid delivery pipe is certainly brought into contact with the inner surface of a nozzle by the spring interposed between the protrusion provided to the inner surface of a nozzle pipe and the protrusion provided to the outer surface of the liquid delivery pipe. CONSTITUTION:Air delivered under pressure from a pump main body through an inlet 5 is delivered into a nozzle pipe 7 under pressure from an air introducing port 4 and delivered into a container 1 through the inlet 6 thereof. On the other hand, pressure is applied to the liquid level in the container 1 by air delivered into the container 1 under pressure to deliver the liquid in the container 1 from one end of a liquid delivery pipe 9 while the liquid is mixed with air delivered into the nozzle pipe 7 under pressure at the other end of the pipe 9 to be atomized and sprayed from the jet orifice 8' of a nozzle 8. In this case, a protrusion 11 is provided to the inner surface of the pipe 7 so as to protrude into said pipe 7 and a protrusion 12 is further provided to the outer surface of the pipe 9 so as to protrude outwardly and a spring 13 for energizing the other end of the pipe 9 to a direction contacted with the inner surface of the nozzle 8 is interposed between the protrusions 11, 12. Therefore, the contact between the end part of the pipe 9 and the inner surface of the nozzle 8 is ensured and good atomization can be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is capable of pumping air into a container to pump liquid in a container through a liquid pumping pipe, and to combine the pumped liquid with air pumped into a nozzle pipe. The purpose of this is to ensure good atomization by ensuring contact between the end of the liquid pressure pipe and the inner surface of the nozzle. The aim is to make sure that

Hereinafter, the present invention will be explained based on drawings showing one embodiment thereof. In FIGS. 1 to 4, 1 is a container that stores liquid, and the outer periphery of the upper opening of this container 1 has a threaded portion 1'.
has been established. Reference numeral 2 denotes a cap that is detachably attached to the upper end opening of the container 1 by screwing, and a backing is provided between the cap 2 and the upper end opening of the container 1 to ensure liquid tightness and airtightness. 3 is interposed. Reference numeral 4 denotes an air inlet port provided in the cap 2, and this air inlet port 4 receives air pumped through a tube 5 from the pump body (not shown). Reference numeral 6 denotes an air outlet provided in the camp 2 in communication with the air inlet 4;
It is a device that is pumped inside. Reference numeral 7 denotes a nozzle pipe whose one end is removably attached to the cap 2 by screwing so as to communicate with the air inlet 4, and a nozzle 8 is removably attached to the other end of the nozzle pipe 7 by screwing. It is installed.

Reference numeral 9 denotes a liquid pressure-feeding pipe installed in the nozzle pipe 7, one end of which is immersed in the liquid in the container 1, and the other end in contact with the inner surface of the nozzle 8. Further, one end of the liquid pumping pipe 9 is also provided so as to be in contact with the bottom of the container 1 so that all the liquid in the container 1 is pumped. Furthermore, cutouts 9' are provided at both ends of the liquid pressure feeding pipe 9, as shown in FIG. 3, in order to communicate the liquid pressure feeding pipe 9 with the inside of the container 1 and the inside of the nozzle pipe 7. . The relationship between the nozzle pipe 7 and the liquid pressure feeding pipe 9 is such that the air forced through the air introduction port 4 can sufficiently pass between the inner diameter of the nozzle pipe 7 and the outer diameter of the liquid pressure feeding pipe 9. gap 1
The relationship is made to have o.

Reference numeral 11 denotes a protrusion provided on the inner surface of the nozzle pipe 7 so as to protrude inward, and a plurality of protrusions 11 are provided as shown in FIG. Reference numeral 12 denotes a protrusion provided on the outer surface of the liquid pressure pipe 9 so as to protrude outward;
As shown in FIG. 3, a plurality of them are also provided. Reference numeral 13 denotes a coil spring interposed between the protrusion 11 of the nozzle pipe 7 and the protrusion 12 of the liquid pressure pipe 9, and this coil spring 13 keeps the other end of the liquid pressure pipe 9 in constant contact with the inner surface of the nozzle 8. It is biased in the direction of

The operation in the above configuration will be explained. Air is forced from the pump body (not shown) through the tube 6 and is forced into the nozzle pipe 7 through the air inlet 4.
The air is forced into the container 1 through the air outlet 6. and container 1
The air pumped into the container 1 applies pressure to the liquid surface, so the liquid in the container 1 is pumped from one end of the liquid pressure pipe 9 and into the nozzle pipe Y at the other end of the liquid pressure pipe 9. The mixed air is atomized and sprayed from the nozzle 8' of the nozzle 8.

Generally, if the contact between the other end of the liquid pressure pipe 9 and the inner surface of the nozzle 8 in the above configuration is uncertain due to dimensional variations or the assembly condition, atomization cannot be achieved. Therefore, in order to solve this problem, it is possible to increase the amount of air to be pumped or to take measures to increase the pumping pressure, but in these cases, it is necessary to use a large capacity pump to pump air. must be used, and as a result,
It is possible to obtain a small and simple sprayer.

However, according to the present invention, a spring is interposed between the protrusion provided on the inner surface of the nozzle pipe and the protrusion provided on the outer surface of the liquid pressure-feeding pipe, and this spring prevents variations in dimensions and the state of assembly. Since the other end of the liquid pressure pipe is securely in contact with the inner surface of the nozzle, good atomization can be achieved at all times, and
Since the desired purpose can be achieved with a small-capacity pump for pumping air, it is possible to obtain a small and simple sprayer.

[Brief explanation of drawings]

Fig. 1 is a side sectional view of a sprayer showing an embodiment of the present invention, Fig. 2 is an enlarged sectional view of the main part of the sprayer, Fig. 3 is a perspective view of the end of the liquid pressure pipe in the sprayer, and Fig. 4 2 is a sectional view taken along line AA' in FIG. 2. 1...container, 2...cap, 4...
...Air inlet, 6...Air outlet, 7.
...Nozzle pipe, 8...Nozzle, 9.
・・・・・・Liquid pressure pipe, 1o・・・Gap, 1
1.12...protrusion, 13...spring.

Claims (1)

[Claims] a cap that is removably attached to the opening of a container storing a liquid, an air outlet provided in the cap, and a nozzle attached to the cap at one end so as to communicate with the air inlet, and at the other end. a nozzle pipe provided with a nozzle, and a nozzle pipe equipped with a gap for air to pass through the nozzle pipe, one end of which is immersed in the liquid in the container, and the other end of which is in contact with the inner surface of the nozzle. a liquid pressure-feeding pipe that communicates with the inner surface of the nozzle pipe, a protrusion that protrudes inward on the inner surface of the nozzle pipe, a protrusion that protrudes outward on the outer surface of the liquid pressure-feeding pipe, and a gap between these protrusions is provided. The sprayer is characterized by interposing a spring biased in a direction to bring the other end of the liquid pressure pipe into contact with the inner surface of the nozzle.