JPH0748863Y2 - Architectural spray gun - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building spray gun for spraying a building spray agent such as mortar, cement or outer wall coating agent.

[0002]

2. Description of the Related Art Conventionally, a building spray gun has a gun body having a spraying agent feed passage communicating with a blowout passage having a blowout opening at its tip, and a jet nozzle disposed at the blowout passage and having a spray nozzle at It is provided with an air ejection pipe facing the vicinity.

In use, a supply hose is connected to the spraying agent supply passage of the gun body, and an air hose is connected to the air ejection pipe. The spraying agent is pressure-fed from the container to the feeding hose via the pump, and the spraying agent is fed from the spraying agent feeding passage of the gun body to the blowing passage. Air is pressure-fed to the air hose via a compressor or the like, and the air is fed to the air ejection pipe.

Therefore, the spraying agent fed to the blowout path is vigorously jetted from the blowout port together with the air jetted from the jetting nozzle, whereby the spraying agent is sprayed on the building.

[0005]

In spray coating a building with a conventional spray gun, first, a pump is started to feed the spray agent from a container to a feed hose, and The compressor is started to force air to be sent to the air hose, and then the worker holds the spray gun and performs the coating work.

In general, since the coating work is performed over a wide area such as a wall surface, the feeding duct and the air hose are long, and the worker keeps the spray gun and separates from the pump and the compressor. Move to a place to work.

For this reason, at least two workers are required to perform the coating work, one person starts or stops the pump and the compressor, and another person holds the spray gun to apply the coating. There is a problem that work efficiency must be performed and work efficiency cannot be improved.

[0008]

[Means for Solving the Problems] The present invention provides a building spray gun that solves the above-mentioned problems. The first means of the present invention is to provide a blowout path having a blowout port at its tip. Construct a body that has a communicating path for spraying agent.
The formed gun body, an air ejection pipe disposed in the ejection passage and having an ejection nozzle facing the vicinity of the ejection port,
In a construction spray gun having an air supply path for supplying air to the air ejection pipe, the spray gun is installed in the spray agent supply path.
A valve housing for supplying the spraying agent into the housing.
Along with the interior of the spray agent valve that opens and closes the feeding path
In addition, the air feeding is performed in the bearing portion protruding from the housing.
Built-in air valve that opens and closes the passage freely
Arrange the valve for the agent and the valve for the air coaxially.
In addition, the operating means to open and close both valves simultaneously is installed.
The valve unit is constructed by
The valve housing that makes up the
The bearing part is inserted in the body and
The point is that it is installed in the air feed path .

Further, the present invention is configured as a second means, in which the spraying agent valve is a disc-shaped butter flap.
It consists of a valve .

[0010]

Embodiments of the present invention will be described in detail below with reference to the drawings.

The gun body 1 has a head 4 having an outlet 3 provided with an outlet 2 at its tip, and a spraying agent feed passage 5 connected to the head 4 and communicating with the outlet 3. And a detaching means 7 facing the opening of the spraying agent feeding passage 5 at the tail end of the body 6. The body 6 sequentially connects the first cylinder body 8, the valve housing 9, the second cylinder body 10, the third cylinder body 11, and the hose connection cylinder body 12 from the tip end side to the tail end side. The outer cylinder for joint of the second cylinder 10 and the third cylinder 11 constitutes the handle portion 13.

A feeding hose 14 is removably inserted into the hose connecting cylinder 12 via a detaching means 7, and the feeding hose 14 is connected to a spraying agent container 16 via a pump 15. Has been done.

In order to configure the attaching / detaching means 7, a plurality of attaching / detaching levers 17 are arranged in the hose connecting cylinder 12 in the radial direction and are rotatably attached, and a attaching / detaching cam is attached to the base end of the attaching / detaching lever 17. 18 are provided. Therefore, when the detachable lever 17 is raised as shown by the solid line in the drawing, the feeding hose 1
4 can be inserted into and removed from the hose connecting cylinder 12. On the other hand, when the attachment / detachment lever 17 is rotated as shown by the chain line in the drawing with the feed hose 14 inserted in the hose connection cylinder 12, the feed hose 14 is tightened by the attachment / detachment cam 18, and the hose connection cylinder is formed. It is fixed to the body 12.

The valve housing 9 is provided with a spray agent valve 19 such as a butterfly valve, and a lower portion of the valve 19 is rotatably supported by a rotary shaft 20. On the other hand, the upper portion of the valve 19 is connected to an operating shaft 21, and the operating shaft 21 is rotated so that the spraying agent valve 19 can be opened and closed by the spraying agent valve 19. The extension shaft end 22 of 21 is provided with operation means 24 including an operation lever 23.

The head 4 of the gun body 1 is internally provided with an air ejection pipe 25 along the ejection passage 3, and the air ejection pipe 25 has an ejection nozzle 26 facing the vicinity of the ejection port 2.

A tubular bearing portion 27 is projected from the upper portion of the valve housing 9, and hose mounting pipes 28 and 29 are provided in front of and behind the bearing portion 27. Further, in the bearing portion 27, the operation shaft 21 and the extension shaft end 2 described above are provided.
An air valve 30 formed between the valve 2 and the valve 2 is rotatably fitted therein. That is, the tail end 25a of the air ejection pipe 25
The auxiliary hose 31 is connected to the front hose mounting pipe 28 so that air is ejected from the rear hose mounting pipe 29 through the air valve 30, the front hose mounting pipe 28, and the auxiliary hose 31. An air feed path 32 leading to the pipe 25 is formed.

An air hose 33 is detachably inserted into the above-mentioned rear hose mounting tube 29, and the air hose 33 is connected to an air pressure source 34 such as a compressor, an air pump or a blower. . Therefore, the air pressure-fed from the air pressure-feeding source 34 is the air valve 30.
Is pressure-fed to the air feeding path 32 via the air ejection pipe 25
Is ejected from the ejection nozzle 26. Therefore, the air valve 30 is rotated by the operating lever 23 (operating means 24) to open and close the air feeding path 32. However, as shown in the figure, the relationship between the operating shaft 21 and both valves Is
When the spraying agent valve 19 is turned to the "closed" position, the air valve 30 is set to the "closed" position at the same time, and when the spraying agent valve 19 is turned to the "open" position, the air valve 30 is set at the same time. Are set to be in the "open" position.

According to the present invention based on the above embodiment, when performing the coating work using the spray gun 1, one operator holds the spray gun 1 and the operating means 24 operates the spray agent valve 19 and the air. The valve 30 is rotated to the “closed” position, and in this state, the pump 15 and the air pressure supply source 34 are started. In this case, since the spraying agent supply passage 5 is closed by the spraying agent valve 19, the spraying agent is not blown out from the outlet 2, and the air supply passage 32 is closed by the air valve 30. Therefore, the air is not ejected from the ejection nozzle 26. Therefore, in this state, the worker can hold the spray gun 1 and move it to a required work place.

When performing a coating operation at the work site, the operator uses the operating means 24 to operate the spray agent valve 1
9 and the air valve 30 may be rotated to the "open" position, whereby the spraying agent feeding path 5 is opened, so that the spraying agent is fed to the air outlet 2 and the air feeding is also performed. Since the delivery path 32 is opened, air is ejected from the ejection nozzle 26, whereby the spraying agent is blown out from the blow-out port 2 along with the air and is blown to the wall surface of the building.

In order to stop the coating work and take a rest, or to stop the pump 15 and the air pressure source 34 after the coating work is completed, the spraying agent valve 19 and the air are supplied by the operating means 24. It suffices to rotate the valve 30 again to the “closed” position.

As described above, according to the present invention, the operator operates the operating means 24 of the spray gun 1 at his / her hand to start and stop the spraying of the spraying agent from the spray gun 1 easily and quickly. In order to achieve such an object, it is sufficient to provide at least the spraying agent valve 19 for opening and closing the spraying agent feeding path 5, but not necessarily opening and closing the air feeding path 32. It is not necessary to provide the air valve 30 for this purpose.

However, normally, when the coating operation is stopped or completed, even if only the spraying agent feed passage 5 is closed by the spraying agent valve 19, if the air is jetted from the jet nozzle 26, the head 4 Since the spraying agent that has accumulated in the air outlet 3 is scattered from the air outlet 2, it is preferable that the air supply passage 32 is closed by the air valve 30 by the simultaneous operation as in the above embodiment. .

[0023]

According to the present invention, the valve housing 9
However, if the spraying agent valve 19 is installed in the housing,
Both are for air in the bearing portion 27 protruding from the housing.
The valve 30 is installed inside, and the spraying agent valve 19 and the air are provided.
Valve 30 is coaxially connected and arranged, and both valves are
The operating means 24 for simultaneously opening and closing the valves 19 and 30 is provided.
The gun valve unit
It is possible to unitize the structure of the body 1,
And easy to assemble. That is, the valve housing 9 is
As described above, it should be interposed between the first cylinder 8 and the second cylinder 10.
Can form part of the body 6 of the gun body 1.
It is possible and assembled by interposing such a housing
Opening and closing of the spraying agent feeding path 5 by the spraying agent valve 19 alone
The mechanism can be configured. So, one of the body 6
The valve housing 9 installed in the
Since the bearing portion 27 in which the lube 30 is installed is projected,
As described above, the pair of hoses 31 and 33 are connected to the bearing portion 27.
Air supply path by air valve 30 just by connecting
An opening / closing mechanism of 32 can be configured. And this
With such a unitized and simple structure, the operation means 24
By operating the spraying agent feed path 5 and the air feed path
Since 32 can be opened and closed at the same time, the start and stop of the spraying of spraying agent can be stopped.
Prevents the spraying agent from scattering not only when stopping but also when stopping
The effect is that you can.

By the way, according to the present invention, a ball for spraying agent is used.
Bub 19 consists of a disc-shaped butterfly valve and is in the "closed" position.
At the circular passage in the valve housing 9
The agent supply path) can be completely blocked, and the spraying agent is completely eliminated.
It is possible to block it so that it does not pass. Ie example
For example, make a hole in the radial direction of the cylindrical member and rotate the cylindrical member
In the case of a valve member that can be rotated
In the "closed" position, the holes are directly
It is rotated to the intersecting position to block the passage of the spraying agent, but the hole
It inevitable to create a gap at both ends of the
A small amount of spraying agent passes through and leaks from the outlet at the tip.
The spray agent valve 19 of the present invention
No such leakage of spraying agent should occur.
It is said that the spraying agent feed path 5 can be completely shut off without a gap.
effective.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention in an operating state.

FIG. 2 is a vertical sectional view showing an embodiment of the present invention in a rest state.

[Explanation of symbols]

 1 Gun Body 2 Blowout Port 3 Blowway 4 Head 5 Spraying Agent Feeding Path 6 Body 7 Attachment / Detachment Device 9 Valve Housing 14 Feeding Hose 15 Pump 16 Container 19 Spraying Agent Valve 21 Operation Axis 22 Extension Axis End 23 Operation Lever 24 Operation Means 25 Air jet pipe 26 Jet nozzle 27 Bearing portion 30 Air valve 32 Air feed path 33 Air hose 34 Air pressure feed source

Claims (2)

[Scope of utility model registration request] 1. A body having a spray agent feed passage (5) communicating with an outlet passage (3) having an outlet (2) at its tip.
Gun body (1) constituting (6), and the blowout path (3)
And the jet nozzle (26) at the outlet (2).
Air injection tube to face the vicinity of the (25), said air injection
Air supply path (32) for supplying air to the outlet pipe (25)
In a building spray gun including: a valve housing interposed in the spraying agent feed passage (5)
(9) has the spraying agent feed passage (5) in the housing.
With a valve (19) for spraying agent that can be opened and closed freely
In the bearing part (27) protruding from the housing,
Air valve that can open and close the air feed path (32)
(30) is installed inside, and the valve (19) for spraying agent and air
-If the valve (30) for the vehicle is coaxially connected and arranged,
To open and close both valves (19, 30) simultaneously
Constructing a valve unit by providing means (24)
And a valve housing (9) that constitutes the valve unit.
Inserts into the body (6) of the gun body (1)
Together with the bearing portion (27), the air feeding path (3
2) A spray gun for construction, characterized in that 2. The spray agent valve (19) is disc-shaped.
The butterfly valve according to claim 1, characterized in that
This is a building spray gun.