JPS63269Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is an outlet device for supplying therapeutic gas to patients, and more specifically, the outlet body is mounted and fixed behind the ceiling, making effective use of the ceiling space of hospital rooms, etc. The present invention relates to a limit switch mechanism for an electric reel type outlet device in which a hose with an outlet valve is moved in and out of the ceiling by a motor using a push button switch in order to conveniently supply gas to a patient.

The above-mentioned outlet device is as shown in FIG.
At the back side of the ceiling a, an electric reel type outlet main body c is placed and fixed on a beam b, and a hose e to which an outlet valve d is attached is moved in and out from the ceiling surface by a motor using a switch (not shown). However, according to the conventional electric reel type outlet device, although the hose e is taken in and out from the ceiling surface by remote switch operation, when the hose e is pulled out, the hose e is marked with a red or yellow color. Because of this, there are many cases where the tape is overlooked due to carelessness and the hose e is pulled out beyond its maximum length, which may overload the motor or cause the pulley to There was a problem with the hoses being scratched due to idling.

As a result of studies in view of the above-mentioned conventional problems, the present invention is equipped with a limit switch for ending and stopping hose unwinding and a limit switch for ending and stopping hose rewinding in the main body of an electric reel type outlet, and the limit switch for ending and stopping hose rewinding is A slide tube that is moved up and down by the unwinding force and spring force of the hose is installed inside the guide tube, and a changeover switch is appropriately arranged so that it can be turned on and off by the up and down movement of the slide tube. The purpose of this system is to solve the problems of the prior art and to ensure that the automatic stop after the end of the hose rewinding is free from malfunction.

The present invention will be described in detail below based on illustrated embodiments.

Figures 2 and 3 show an electric reel type outlet main body 1, and a reel main body 4 on which a hose 3 with an outlet valve is wound is wound around a main body base 2 which is placed and fixed on the aforementioned beam. and motor 5
and a pulley 6 driven and rotated by the motor 5.
and a pulley idler 7, and a gas introduction pipe 8 is attached to the reel body 4 with one end opened at the dome 4a of the reel body 4, and the base end is connected to the opening 8a. By winding the hose 3 around the reel body 4, the distal end side, which is hung around the pulley 6 and equipped with an outlet valve (not shown), is closed as shown in FIG. The pulley 6 is vertically installed from the ceiling through a hole 2a in the main body base 2, and when the motor 5 is rotated forward or reverse by operating up and down switches (not shown) for driving the motor, the pulley 6 is rotated forward or backward. As a result, the hose 3 is sent out and rewound.

Furthermore, on the main body base 2, between the reel main body 4 and the pulley 6, a limit switch 9 for stopping the hose feedout is installed, and at the lower part of the pulley 6, a limit switch 9 is provided for stopping the hose rewinding. A stop limit switch 10 is provided.

The hose 3 is always tensioned in the tangential direction between the drum winding diameter of the reel body 4 and the diameter of the pulley 6, so when the hose 3 is fed out and approaches the limit length, the drum 4a and hose 3
By displacing the connection part of to the pulley 6 side,
The position of the hose 3 is lowered, the switch actuator 9a is pushed down by the hose 3, and the switch 9 is activated.
The switch 9 is electrically connected to the motor 5 and is provided in the above-mentioned relationship with the hose 3 so that the switch 9 is turned off, the power to the motor 5 is cut off and stopped, and the feeding of the hose 3 is stopped. ing.

Further, the limit switch 10 for stopping the hose rewinding according to the present invention is constructed as follows.

As shown in FIGS. 3 and 4, on the main body base 2, the lower part of the pulley 6 includes:
Guide tube 1 coaxial with hole 2a of main body base 2
1 is fixedly erected by welding or the like, and a slide tube 12 is provided on the guide tube 11 so that it can be pushed up by a hose 3 inserted therethrough, and is slidable in the vertical direction and is screwed onto the guide tube 11. A compression spring 14 interposed between the guide tube 11 and the cap 13 pushes the guide tube 11 downwardly, and a slit 11a is vertically provided on one side of the circumferential wall of the guide tube 11.

Further, on the main body base 2, a limit switch main body 15 is disposed on one side of the guide tube 11.
is fixed and electrically connected to the motor 5, and the switch body 15 is provided with an actuator 15a, so that the actuator 15a slightly protrudes into the guide tube 11 through the slit 11a. I have it inserted.

The limit switch main body 15 is fixed to a mounting plate 16 fixed on the main body base 2 with screws 16a.

The center hole 12a of the slide tube 12 is formed to be considerably larger than the diameter of the hose 3, and the inner diameter of a center hole 17a is formed at the lower end of the slide tube 12 to be slightly larger than the diameter of the hose 3. A hose guide 17 made of Teflon or the like is fixed, and in the illustrated example, the upper end of the decorative coating 18 of the hose 3 can be struck.

Here, the slide pipe 12 is connected to the hose guide 1.
7 may be integrally provided, and of course, the hose 3 may be covered with a member for pushing up the hose guide 17 instead of the decorative coating 18.

In the above configuration, when the hose 3 is being fed out, the slide tube 1 is moved by the spring force.
2 is pushed down and hits the main body base 2 as shown by the solid line in FIG. , the changeover limit switch body 15 is in the ON state, and the motor 5 is switched on by operating a push button switch (not shown).
By starting the hose 3 in the rewinding direction, the hose 3 can be rewinded.

In the above state, when the hose 3 is unwound and approaches the unwinding end position, the decorative covering 18 abuts against the hose guide 17 in the illustrated example, and the decorative covering 18 and the slide tube 12 exert the winding force of the hose 3. The actuator 15a is pushed up against the spring force as shown by the two-dot broken line in FIG. By cutting off the power to the motor 5, the rotation of the motor 5 is stopped, and the hose 3 is automatically stopped at the rewinding end position.

Moreover, when the hose 3 is sent out in the above state, the slide tube 12 is lowered by the spring force, and the actuator 1
By releasing the pressing rotation of 5a, the limit switch main body 15 is turned on, and is ready for the next end of hose rewinding and stop.

As explained above, the limit switch mechanism of the electric reel type outlet device according to the present invention includes the feeding and rewinding mechanism for the hose 3, the limit switch 9 for stopping the hose feeding, and the limit switch 10 for stopping the hose rewinding. In an electric reel type outlet device in which a hose 3 with an outlet valve is put in and taken out from the ceiling surface using a switch, the limit switch 10 for stopping the end of the hose rewinding includes:
A limit switch body 15 for ON/OFF switching and a guide tube 11 are installed on the body base 2 and below the pulley 6.
1, a slide tube 12 through which the hose 3 is inserted is pushed down and biased by a spring 14, and a slit 11a provided in the guide tube 11 is inserted into the slide tube 12.
The actuator 15a of the limit switch main body 15 is inserted into the limit switch body 15, and the actuator 15a of the switch main body 15 can be turned ON and OFF by vertical movement of the slide tube 12, so that the hose 3 cannot be rewound. At times, the winding force of the hose 3 pushes up the slide tube 12 against the spring force, turning the switch body 15 OFF, the motor 5 stops, and the hose 3 returns to the unwinding end position. Since the slide tube 12 is always pressed down by the spring 14, the main body 15 is immediately returned to its original position in synchronization with the feeding operation of the hose 3. As a result, the response is quick and accurate, and the hose 3 can be properly stopped at the end of rewinding and released from the stop.However, unlike the conventional example, problems such as overload on the motor and wear and tear on the hose 3 can be avoided. Furthermore, the structure is such that the slide tube 12 is pushed down and biased inside the guide tube 11 by a spring force, and the operation is simple, so it can be manufactured at low cost, and it is difficult to break down and can be used for a long period of time. Watatsute limit switch body 15 ON/OFF
Switching can be performed without malfunction.

[Brief explanation of the drawing]

FIG. 1 is an overall view showing the usage state of the electric reel type outlet device, FIGS. 2 and 3 are a plan view and a front view respectively showing the outlet body of the electric reel type outlet device according to the present invention, and FIG.
The figure is an enlarged longitudinal sectional front view of the limit switch mechanism in the same device. 1... Outlet main body, 2... Main body base,
3... Hose with outlet valve, 4... Reel body, 5... Motor, 6... Pulley, 9
...Limit switch for stopping hose feed,
10... Limit switch for ending and stopping hose rewinding, 11... Guide pipe, 11a... Slit,
12...Slide tube, 14...Spring, 15...
ON/OFF switching limit switch body, 15a
... Actuator, 17... Hose guide.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) The outlet body, which is fixedly installed on the back side of the ceiling, is equipped with a reel body, a motor, a pulley, a limit switch for stopping the hose feedout, and a limit switch for stopping the hose rewinding.
In an electric reel type outlet device in which a hose with an outlet valve is taken in and out from the ceiling surface using a switch, the limit switch for ending and stopping the hose rewinding is located on the main body base and is operated to switch ON and OFF at the lower part of the pulley. A main body and a guide tube are respectively attached, and a slide tube through which a hose is inserted is inserted into the guide tube so as to be pushed down by a spring, and the limit switch body is turned ON by the vertical movement of the slide tube.
A limit switch mechanism for an electric reel type outlet device, in which an actuator is inserted through a slit provided in the guide tube to enable OFF switching operation. (2) A limit switch mechanism for an electric reel type outlet device according to claim 1, wherein the slide pipe is formed with a hose guide provided at its lower end.