JPS6212445Y2 - - Google Patents

Description

[Detailed description of the invention] The invention consists of a cylinder which has a skirt portion and a push-down cap on its base, and pressurizes and seals liquid inside the cylinder;
The present invention relates to a connection adapter that can be easily and reliably connected to a spray gun that discharges liquid in the cylinder.

For example, undercoating agents used for the purpose of repairing automobile bodies, soundproofing, impact mitigation, rust prevention, etc., or gaps between buildings, equipment, and machinery;
Caulking agents for filling joints, etc., and even insecticides,
Liquids such as disinfectants are often filled under high pressure into relatively small-capacity cylinders for convenience of use.
At this time, there is a type in which a nozzle part is provided directly on the cylinder at the upper end of the cylinder, but this has the disadvantage that the liquid splashes back and stains the user when spraying, and such a cylinder usually grips the cylinder itself. It has to be pressed while pressing, and its operability is poor. Furthermore, for example, in an air-type spray gun, in places where there is no high-pressure air source such as a compressor or where it cannot be used, it is possible to liquefy and fill fluorocarbon gas or the like and use the fluorocarbon gas as air for spraying. In such a case, since it is necessary to use a large number of cylinders, it is necessary to easily and simply connect the cylinders and the spraying device.

The present invention provides a connection adapter that can easily and reliably connect such a cylinder and a spraying device that discharges the fluid inside the cylinder, and that sprays the fluid inside the cylinder safely and with good operability. For the purpose of providing this information, one embodiment thereof will be described below based on the drawings.

In the figure, a connecting adapter 1 of the present invention connects a cylinder 2 and a spraying device using, for example, a spray gun 3 for discharging the fluid in the cylinder 2, and has a skirt portion 5 on a base body 4. and a push-down cap 6. The cylinder 2 has a protrusion 9 that bulges outward around a cylindrical press cylinder 7 with a small hole communicating with the inside by pressing down the center of its upper end.
It is a liquid container of a well-known structure that has a standing wall 10 surrounding it, and the liquid such as the caulking agent, medicine, paint, etc. is pressurized and filled using an accumulating gas such as chlorofluorocarbon gas, or High-pressure gas used as a spraying gas or its liquefied fluid itself can be enclosed alone. Hereinafter, a case will be described in which a liquid such as a medicine is sealed together with a pressurized fluid in the cylinder 2. The spray gun 3 is
Therefore, one nipple 16 is provided at the lower end of the gun body 12, and the nipple 16 communicates with the paint nozzle port 14 at the tip of the gun body 12.
is opened and closed by a needle valve 15 that is moved toward and away by pulling a trigger 13 that is pivotally supported on the gun body 12.

The connecting adapter 1 has a screw hole 20 in the upper part of the base body 4 into which the joint 19 connected to the nipple 16 is screwed, and a through hole 21 having approximately the same diameter as the small hole of the press tube 7.
A stepped through hole 25 is continuous with a hole 24 provided with a seat surface 23 into which an O-ring 22 for sealing the periphery of the press tube 7 can be inserted and which can come into contact with the upper end surface of the press tube 7.
The base body 4 has an outer flange portion 27 and
A nut fitting 30 for clamping the skirt portion 5 between the outer flange portion 27 and the outer flange portion 27 is provided. Skirt part 5
In this embodiment, it is a relatively thin conical cylindrical shape that widens downward from the periphery of the disk-shaped upper plate 34 fixed between the flange portion 27 and the nut fitting 30 toward the outer periphery of the vertical wall 10. By providing a plurality of grooves 35 extending upward from the lower end, the groove can be expanded outwardly with elasticity, and a locking portion 36 is provided on the inner surface of the lower edge. Note that when the projection 9 and the locking portion 36 are engaged, the seat surface 23 presses down the upper edge of the push tube 7, and the hanging length is set so that the push tube 7 can be communicated with the fluid inside. is determined. The push-down cap 6 is screwed into a nut portion 39 that is screwed into the base body 4, and comes into contact with the outer surface of the skirt portion 5, thereby reducing the skirt portion 5 and pinching the protrusion 9 and the locking portion 36. The inner surface of the contact portion with the skirt portion 5 is formed into a cone shape with approximately the same taper as the skirt portion 5.

However, the connection adapter 1 of the present invention has the above-mentioned joint 1.
9 to the nipple 16 of the spray gun 3,
With the push-down cap 6 screwed back upwards, the locking portion 36 of the skirt portion 5 is engaged with the protrusion 9 of the cylinder 2. The skirt portion 5 has a spring property and easily engages with the protrusion 9, and at the same time, by attaching the connection adapter 11, the press tube 7 is connected to the seat surface 23 and the O-ring 2.
2, seal the shaft and press to release. Therefore, when the trigger 13 of the spray gun 3 is pulled, the high-pressure liquid that flows out from the pusher cylinder 7 passes through the through hole 25 of the base body 4, the joint 19, and the nipple 16, and reaches the paint nozzle port 14, and flows into the interior of the cylinder 2. For example, the drug may be sprayed by an enclosed pressurized fluid.

Figures 4 to 6 show a case in which the cylinder 2 is filled with a liquefied gas for spraying such as fluorocarbon gas, and the liquid is used to spray other liquids such as paint. In the embodiment, the connecting adapter 1 is connected to the two inlet ports 43, 43 of the pressure reducing valve 42 and arranged in parallel to form a connecting fitting C, and the connecting fitting C is used for spraying the spray gun 3 with the paint tank 40 installed below. Connected to air inlet 41. One connecting adapter 1 is connected to the inlet port 43 using a bent joint 44, and the other connecting adapter 1 is connected via a regulating valve 46 that can block the through hole 25 and adjust its flow rate. . The pressure reducing valve 42 has a hole 50 that communicates with the inflow port 43 and accommodates a valve 49 that is biased by a spring 47, and a valve stem 51 that is erected on the valve 49 is pressed to open the valve 4.
A diaphragm 52 is provided for opening 9, and the diaphragm 52 is provided with an adjustment screw 55 that is pressed through a spring 54. 56 is a lock nut. The pressure reducing valve 42 applies the spring force of a spring 54 to the diaphragm 52 in response to the movement of an adjusting screw 55 to control the liquid flowing in from the inflow port 43, and also senses the pressure of the liquid flowing in through the valve 49. The spring force opens and closes the valve 49 via the valve stem 51 to reduce and adjust the pressure and discharge from the discharge port 57. Furthermore, the flow path can also be blocked by the adjusting screw 55.

Therefore, by pulling the trigger 13, the paint tank 40
The paint inside can be sprayed by pressurized fluid in the cylinder 2. In addition, the connection fittings C include the connection adapters 1, 1.
By connecting the cylinders 2 to the respective cylinders, the spraying time can be extended, and by opening and closing the control valve 46, the cylinders 2 can be used sequentially.

As mentioned above, the connecting adapter of the present invention has a skirt portion and a push-down cap on the base, and as a result can easily and reliably connect the cylinder and the spraying device, it can blow out the fluid in the sealed cylinder at high pressure. It can be easily sprayed and discharged through the spraying device, improving spraying work efficiency,
Work accuracy can be greatly improved, and since a spray gun is used, blowing back of liquid during dispensing work can be reduced, and work safety can also be ensured.
In addition to the gun that simply discharges high-pressure fluid as shown in Figure 1, various types of spray equipment are available depending on the application, such as the air-type spray gun shown in Figure 4, and even the so-called automatic gun. You can adopt things,
Furthermore, the cylinder may be filled with a mixture of chemicals and the like together with liquefied gas for spraying, or may be filled with only liquefied gas to enable spraying in locations where a compressor or the like cannot be used. Further, the connecting adapter can be provided with a suitable locking member for opening and closing the through hole 25, and can be modified into various configurations such as integrally forming the base body and the skirt portion.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional front view showing an embodiment of the present invention with the mounting device and cylinder connected, Fig. 2 is a partially sectional front view, and Fig. 3 shows the skirt portion and the cylinder. Fig. 4 is a front view showing another example of use as a connecting fitting, Fig. 5 is a front view of the connecting fitting, and Fig. 6 is its A.
-A cross-sectional view. 1...Connection adapter, 2...Cylinder, 3...Blowing gas, 4...Base body, 5...Skirt portion, 6...
...Pushing cap, 7...Pushing tube, 9...Protrusion, 1
0... Standing wall, 35... Division groove, 36... Locking part.

Claims (1)

[Scope of utility model registration request] A cylinder which is equipped with a cylinder at the center of the upper end which is connected to the inside by pressing down, and which is surrounded by a standing wall with protrusions extending outward, and which pressurizes and seals fluid inside the cylinder, and which allows the fluid in the cylinder to be A connecting adapter for connecting a spraying device for discharging, the adapter having a spring-like structure extending around the outer periphery of the vertical wall at the lower end of a base having a through hole into which the push tube can be fitted and connected to the spraying device. A skirt portion that can be expanded outwardly and has a locking portion on the inner surface of the lower edge that can be hooked to the protrusion of the cylinder is suspended, while the outer surface of the skirt portion is pressed against the upper part of the base body. A connecting adapter in which a push-down cap that reduces the lower edge of the skirt part inwardly is screwed so as to be movable up and down.