JPH0130198Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a medical outlet and suction inlet connection mechanism that completes the connection of an adapter plug of a connecting hose to the medical outlet and suction inlet.

Conventionally, medical outlet and suction inlet mechanisms for inhaling oxygen and laughing gas using a vacuum device for delivering oxygen and laughing gas required simply inserting a connecting hose directly into the spout or inlet, so it was difficult to ensure that the connection was complete. I couldn't confirm what was going on.
Also known are plugging type connection mechanisms for fitting and connecting the plug of a medical gas hose to a valve, as described in French Patent No. 2421328 and Japanese Utility Model Publication No. 13978/1983. The former has an engaging protrusion on the plug, and a double annular groove with a communication passage on the outer periphery of the other valve, inserts the engagement protrusion of the plug through the communication passage and rotates the plug to open the inner annular groove. It is designed to engage the valve at a predetermined position. This plug-in connection mechanism has the problem that it requires two rotation operations and a communication passage insertion operation, making attachment and detachment operations cumbersome. The latter has a structure in which a diagonal groove is bored in the inner wall of the valve, a pin is fitted into the diagonal groove, and a groove for engaging the pin is provided in the outer wall of the plug.The plug is inserted into the valve and the pin on the valve side is inserted into the plug. It is fixed by fitting into the engagement groove. This latter type had the problem that the connection between the pin and the engagement groove was insufficient, and the plug could easily come off if force was applied from the outside.

The object of the present invention is to solve the above-mentioned problems and provide a medical outlet and suction inlet connection mechanism that allows complete connection of the connection hose to the medical outlet and suction inlet.

The gist of the present invention is that it is composed of a hollow cylinder, a guide tube that is slidably fitted into the cylinder, a locking pin, and an adapter plug. In the peripheral wall of the guide tube, two slits in the shape of 〓 or 〓 are provided at corresponding positions, a locking pin is slidably attached through each slit, and the adapter plug can be engaged with the locking pin. The present invention relates to a medical outlet and suction inlet connection mechanism characterized by providing a groove.

Embodiments of the present invention will be described with reference to the drawings. 1st
The figure is an exploded perspective view of an embodiment of the present invention, and FIG. 2 is a partially cutaway assembled perspective view of the same embodiment. In the figure, 1 is a button plate, 2 is a fixed body, and 3 is a valve built-in part.

The fixed body 2 is provided with slits 5, 5 at predetermined positions on both sides of the cylindrical portion 4, and through holes 6, 6 are similarly provided on both sides, and the bottom plate 7 has protrusions 8, which protrude upward on both sides. 8 are provided, and screw holes 9, 9 are provided in the projections 8, 8.
The lower guide member 1 is attached to the cylindrical portion 4 of this fixed body 2.
0 is slidably inserted into the upper guide member 1.
1 in the same way. In this case, the lower guide member 10 has a square-shaped recess 12 on both sides of the upper part, and the upper guide member 11 has a square-shaped protrusion 13.
When these are engaged, square-shaped guide slits 14 are formed on both sides. Also, through the slit 5 and the guide slit 17,
Lock pins 15, 15 are slidably provided. Further, the lower guide member 10 has four notches 16 at predetermined positions, each of which has a spring 1.
7 is provided. Also, O-shaped through holes 18 on both sides
is provided. Furthermore, guide members 10,1
1, the cylindrical portion 19 of the button plate 1 is fitted into the button plate 1.
The cylindrical portion is provided with a notch 20 at a position corresponding to the notch 16, an O-shaped through hole 21 is provided at a position corresponding to the O-shaped through hole 18, and an O-shaped through hole 21 is provided at a position corresponding to the O-shaped through hole 18. A circular step 22 is provided near the top. Furthermore, the locking pin 23 is inserted into the through hole 21, through hole 18,
It is slidably inserted through the through hole 6 and biased by a spring 24, which is fixed by a screw 25 screwed into the screw hole 9 of the projection 8. In this case, the tip of the locking pin 23 has a locking portion 26 that also serves as a spring receiver, and the screw rod 25 is also hollow inside, so that the spring 24 is stably held.

The assembly assembled as described above is attached to the seat plate 27. The valve built-in part 3 is attached to the bottom surface of the seat plate 27, and the gas outlet 28 projects to the top surface of the seat plate 27. Here, 29 is a rubber gasket. A through hole 31 is provided in the seat plate 27 and the wall hole mounting plate 30, into which a key pin 32 can be inserted, so if the position is changed depending on the type of gas, etc., erroneous connection can be prevented. 33 in the figure is an adapter plug, and the pipe portion 34 has a groove 35 that can be engaged with the lock pin 15 at a predetermined position.
Further, the outer circumference of the lower part 36 of the tube is narrowed into a funnel shape. In the figure, 37 is a pin, and 38 is an engagement hole of the pin 37. Further, 30 is a wall hole mounting plate, and 40 is a delivery pipe.

The operating functions of the embodiment of the present invention in use will be explained with reference to the drawings. FIG. 3 is an explanatory diagram showing the behavior of the button board 1, and FIG. 4 is an explanatory diagram showing the locking mechanism.

When the adapter plug is not inserted, the tip of the locking pin 23 protrudes into the hole of the cylindrical portion 4 (not shown) as shown in FIG. Since the button plate 1 is locked by the step 22, the button plate is in a lowered state. Here, when the adapter plug 33 is inserted, the lower part 36 of the tube part 34 is formed in a funnel shape, so when the adapter plug 33 is pushed in, the tip of the locking pin 23 is pushed, and at the same time, the locking pin 23 also serves as a spring receiver. Since the portion 26 is also pushed, the spring receiving and locking portion 26 is disengaged from the circular stage 22 (see FIG. 3B), and the lock is released, and the button plate 1 is urged upward by the spring 17. It rises upward (see Figure 3, c). Regarding the locking mechanism of the locking pin 15, as shown in Fig. 4A, if the adapter plug 33 is not inserted,
As mentioned above, the button plate 1 is locked downward,
The guide members 10 and 11 are pressed upwardly by the spring 17 and are pressed against the button plate 1, so that they are located below like the button plate 1. Here, the lock pin 15 is connected to the slit 5 provided in the cylindrical portion 4 of the fixed body 2 and the guide member 1.
Since the lock pin 15 is slidably provided through the square-shaped guide slit 14 formed by the engagement of the lock pins 1 and 10, when the guide member is positioned downward, the lock pin 15 moves above the square-shaped guide slit 14. The distance between the two lock pins 15, 15 is wide and does not prevent the adapter plug 33 from being inserted (see FIG. 4B). Furthermore, when the adapter plug 33 is inserted as shown in FIG. become,
The distance between each of the two lock pins 15, 15 is narrowed, and the groove 35 of the adapter plug 33 is locked,
Lock this completely.

Next, in the case of detachment, by pushing the button plate 1 downward, the locking part 26 which also serves as a spring receiver will fit into the circular step 22, and the button plate will be locked in the lower position, so that the lock pin will also be placed above the guide slit 14. The two lock pins 15, 1
5 becomes wider and the lock is released.

Next, the structure of the valve built-in portion 3 will be explained based on the explanatory diagrams shown in FIGS. 5A and 5B showing the operation of the embodiment of the present invention. In the figure, 41 is a slide valve, 42 is a seal portion, 43 is a filter, 44 is a slide valve, 45 is a seal portion,
46 is a clearance seal, and 47 and 48 are springs. FIG. 5A shows the clearance mechanism when it is extended to its maximum extent, and FIG. 5 shows it when it is at its minimum extent. FIG.
Since the slide valves 41 and 44 are urged toward the gas outlet 28 by the springs 47 and 48,
In the state shown in A when the adapter plug 33 is not inserted, the slide valves 41 and 44 and the seal parts 42 and 4
5 completely stops the gas ejection, and when the adapter plug 33 is inserted, the slide valves 41 and 4 are closed by the pressure of the adapter plug.
4 is pushed in the insertion direction, the space between the slide valves 41, 44 and the seal portions 42, 45 is opened, and gas is communicated. Note that the arrows in the figure indicate gas flow paths. Further, in the figure, 29 is a rubber gasket, 49 is a wall mounting plate, 50 is a wall hole mounting plate, and 30 is a wall hole mounting plate.

Since the embodiment of the present invention has the structure as described above, when the adapter plug is not inserted, the locking pin 2
3 is biased by a spring 24, and a locking part 26 that also serves as a spring retainer locks the button plate at a low position at a circular step 22 of the cylindrical part 19 of the button plate 1, and the depth of the wall hole where the button plate is to be installed is fixed. If you adjust the clearance depending on the state of the adapter and set it so that the button 1' of the button plate 1 is on the same plane as the wall mounting plate 49, the locking pin 23 will be pushed when the adapter plug is inserted. , the spring receiver/locking part 26 is removed from the circular step 22 of the button plate 1, and the spring 1
The button plate 1 rises due to the bias of 7, and the button plate 1
The button 1' protrudes from the same plane of the wall mounting plate 49, and at the same time, the lock pins 15, 15 pass through the square guide slit 14 and the slit 5 provided in the fixed body, and the guide member 10, which has the square guide slit 14, 11 decreases the distance and locks the adapter plug in the groove 35 of the adapter plug 33. Moreover, the gas flow path is opened by pushing the slide valves 41 and 44 by inserting the adapter plug. Then, by pressing button 1' on button board 1, the 〓 type guide slit 1
The guide member with 4 is lowered and the locking pin 1
5 and 15 widens, the locking of the adapter plug is released, and the adapter plug 33 is pushed out by the springs 47 and 48 in the built-in part of the valve. The button 1' is then located on the same plane as the wall mounting plate 49 as before. Furthermore, when the adapter plug 33 is removed, the slide valve is pushed by the springs 47 and 48 and closes the gas flow path. The embodiment of the present invention is not limited to the above, and the slit in the circumferential wall of the guide tube may have a square shape, but in this case, the locking and releasing is performed by reversing the movement of the button plate from the above embodiment. There is a need to. It goes without saying that the operating mechanism of the button plate 1 is not limited to the embodiment of the present invention.

As described above, the present invention has the excellent effect that the adapter plug can be completely connected.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of an embodiment of the present invention, Fig. 2 is a partially cutaway assembled perspective view of the same embodiment, Fig. 3 is an explanatory view showing the behavior of the operation plate, and Fig. 4 is an explanatory view showing the lock mechanism. FIG. 5 is an explanatory diagram showing the operation of the same embodiment. 4: cylindrical part, 10: lower guide member, 11: upper guide member, 12: square-shaped recess, 13: square-shaped protrusion, 14: square-shaped guide slit, 15: lock pin.

Claims (1)

[Scope of utility model registration request] It consists of a hollow cylindrical body, a guide tube slidably fitted into the cylindrical body, a locking pin, and an adapter plug. On the peripheral wall, two slits in the shape of 〓 or 〓 are provided at corresponding positions,
A medical outlet and suction inlet connection mechanism, characterized in that a locking pin is slidably attached through each slit, and an adapter plug is provided with a groove capable of engaging with the locking pin.