JPS5837486Y2 - spray machine nozzle - Google Patents

Description

[Detailed description of the invention] This invention is used together with a spray machine, and the spray angle can be freely varied in all directions such as up, down, left and right, and the spray machine can be operated freely on the spray surface in narrow spaces in a comfortable posture. The present invention relates to an improvement of a nozzle for a spray bar that enables spraying.

Generally, this type of nozzle has both ends of a connecting tube made of a relatively soft material that connects the nozzle body and a joint that is screwed onto the tip of the spray nozzle of the sprayer, welded to the nozzle body and the joint. When using this device, if you want to spray a narrow spray surface by screwing the joint onto the tip of the spray nozzle of the sprayer, bend the connecting pipe at an arbitrary angle corresponding to the spray surface, and then attach the fitting to the nozzle body. By operating the spray machine by varying the spray angle,
The liquid to be sprayed, such as paint, sucked into the sprayer passes through the tip of the spray nozzle, the connecting pipe, and is sprayed outward from the nozzle hole of the nozzle body.

By the way, with this type of nozzle, the spray angle is variably set by bending the connecting pipe in all directions, such as up, down, left and right, depending on the spray surface being sprayed, so there is no risk of the connecting pipe breaking at the bent part. The nozzle body and joint must be replaced each time, as well as the connecting pipe. At this time, only the damaged connecting pipe needs to be replaced, but both ends of the connecting pipe may be welded to the nozzle body and the joint. Since they are connected, the usable nozzle body and joint also have to be replaced, which is extremely uneconomical.

The present invention solves the above problem by removably connecting the connecting pipe to the nozzle body and the joint using a fastening member, without welding the ends of the connecting pipe to the nozzle body and the joint. Even if the connecting pipe is damaged, the nozzle body and joint can be reused by simply replacing the connecting pipe, making it easy for anyone to assemble and remove, making it easy to replace and repair. The object of the present invention is to provide a nozzle for a spray bar that can be used for spraying.

An embodiment of the present invention will be described in detail below based on the accompanying drawings.

In the figure, 1 is a nozzle main body, and the main body 1 includes a connecting body 2 in which a flow path for liquid such as paint is formed, a swirl head 3 disposed at one end of the opening of the connecting body 2, and a swirl head 3 disposed at one end of the opening of the connecting body 2. 3, a nozzle plate 5 with a nozzle hole 4 formed in the center thereof, and a nozzle cover that is screwed onto the connecting body 2 and fixedly arranges the head 3 and the plate 5 on one end side of the connecting body 2. It consists of 6.

Further, on the other end side of the connecting body 2, an open lower portion is formed in a conical shape, and an external thread 8 is formed on both sides.

Further, one end portion of the connecting tube 9 made of a relatively soft material, for example, copper, is inserted into the open lower portion of the connecting body 2.

Further, the sealing material 10 has a conical outer shape that matches the opening lower part, and has a through hole 11 through which the connecting pipe 9 is inserted, so that one end of the connecting pipe 9 is liquid-tight to the opening lower part. It is held in

A fastening member 13 having an internal thread 12 is screwed onto the external thread 8 of the connecting body 2, and connects one end of the connecting pipe 9 to the connecting body 2 via a sealing material 10.

Reference numeral 14 denotes a joint that is screwed onto the spray nozzle tip 16 of the sprayer main body 15, and an opening 17 is formed in a conical shape at the end of the joint 14 that faces the screwing end from the main body 15. 18 are formed.

Further, the sealing material 19 has a conical outer shape that coincides with the opening 17, and a through hole 20 through which the connecting pipe 9 is inserted.
is formed to hold the other end of the connecting pipe 9 in the opening 17 in a fluid-tight manner.

Further, a fastening member 22 having an internal thread 21 is screwed onto the external thread 18 of the joint 14, and connects the other end of the connecting pipe 9 to the joint 14 via the sealing material 9.

In the above configuration, the fastening portion 13.
22 and both ends of the connecting pipe 9 into which the sealing material 10.19 has been inserted are inserted, and the sealing material 10.19 is opened.
17, and screw the fastening members 13.22 onto the screws 8, 18 of the connecting body 2 and the joint 14, and insert the sealing material 10.19 between the connecting body 2 and the joint 14 to connect both ends of the connecting pipe 9. By connecting the nozzle body 1 and the joint 14 in a liquid-tight manner, even if the connecting pipe 9 that connects the nozzle body 1 and the joint 14 is damaged, the fastening member 13.
22 to separate the seal 10 from the connecting body 2 and the joint 14.
The connecting tube 9 can be replaced by removing the connecting tube 9 and pulling out the connecting tube 9, and there is no need to replace the nozzle body and the joint that can be used together with the connecting tube 9 as in the past.
By replacing only the connecting pipe 9, the nozzle body and joint can be reused, making it possible to construct an economical nozzle, and anyone can easily assemble and remove the nozzle. Damage to the connecting pipe 9 can be easily repaired.

Further, by screwing and connecting both ends of the connecting pipe 9 to the connecting body 2 of the nozzle body 1 and the joint 14 through the sealing material 10.19, the sealing material 10.19 is crushed and the outer peripheral surface of the connecting pipe 9 is The connecting pipe 9 can be held in the connecting pipe 2 and the joint 14 by making the inner surface of the hole 11.20 of the sealing material 10.19, the outer peripheral surface of the sealing material 10.19, the open lower surface, and the inner surface of the opening 17 liquid-tight.

As described in detail above, the present invention connects both ends of the connecting pipe to the nozzle body and the joint in a liquid-tight manner using removable fastening members, so that even if the connecting pipe is damaged, the connecting pipe can be fixed to the nozzle. If it can be removed from the main body and fittings and replaced.
In addition, anyone can easily assemble and remove the nozzle, and it is possible to construct an economical nozzle with a simple structure.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a sectional view of the nozzle of the present invention, and FIG. 2 is a view showing the nozzle of the present invention in use when attached to a sprayer. 1... Nozzle body, 4... Nozzle hole,
7, 17...Opening, 9...Connecting pipe, 1
0.19... Seal material, 13.22...
- Fastening member, 14... joint.

Claims (1)

[Scope of utility model registration request] A nozzle for a spray bar in which a nozzle body having a nozzle hole and a joint are connected by a connecting pipe made of a relatively soft member and whose bending direction can be freely set in any direction, the nozzle body having an opening in the nozzle body and the joint. and inserting both ends of the connecting pipe into each of the openings, screwing a fastening member onto the nozzle body and the joint to removably connect the connecting pipe to the nozzle body and the joint, A nozzle for a spray bar, characterized in that both ends of the connecting pipe are held liquid-tightly in respective openings of the nozzle main body and the joint with a sealing material.