JP5858732B2 - Gas supply socket - Google Patents

Description

  The present invention is provided in a wall portion of a treatment room and a general hospital room, a console box of a ceiling arm that is suspended from the ceiling of an operating room, and the like, and used for treatment such as oxygen, laughter, and air. The present invention relates to a gas supply socket in a medical outlet device that supplies medical gas or sucks dirt and the like.

  Conventionally, for every medical gas such as oxygen gas, laughter, and air, and suction power for walls such as treatment rooms and general hospital rooms, and console boxes for ceiling arms that are suspended from the ceiling of the operating room. A plurality of gas supply sockets, which are also referred to as outlets, are installed, and plugs corresponding to the respective gas supply sockets are inserted and attached as necessary (see, for example, Patent Document 1).

  FIG. 8 is a cross-sectional view showing a state in which the gas supply socket 100 according to the prior art is installed on the wall W. As shown in FIG. By inserting the plug 200 into the gas supply socket 100 to a predetermined position, the valve body 111 accommodated in the gas supply socket 100 in a state of being elastically urged, The gas discharge port 112 is opened against the force to open the gas discharge port 112, and the medical gas introduced into the gas supply socket 100 is directly discharged from the discharge port 112 to a medical device or a flexible tube such as a tube. It is configured to flow into the gas pipe 210 in the plug 200 connected via the pipe body and can be used for treatment. After use, by removing the plug 200 from the gas supply socket 100, the valve body 111 returns to the position where the discharge port 112 is sealed by the elastic urging force. Stored in the storage location.

  FIG. 9 is a cross-sectional view schematically showing a configuration of the gas supply socket 100 according to the prior art before assembly. As shown in FIG. 9, the gas supply socket 100 is a socket base portion including an inflow port 121 to which a predetermined gas is guided from a medical gas supply source 150 or a suction force is guided from a suction source (not shown). 120, and a socket main body 110 having a discharge port 112 and a valve body 111, and having a socket portion 113 to which the insertion plug 200 is attached, and detachably connected to the socket base portion 120. , And these are connected.

  Conventionally, in the periphery of the insertion plug 200 attached to the gas supply socket 100, the type or suction force of the medical gas to be guided to the insertion plug 200 in the circumferential direction around the axis J <b> 1 of the insertion plug 200. Accordingly, a plurality of (for example, two) pins 220 are provided so as to extend in parallel to the plug-in plug 200 with a predetermined interval. Also in the socket portion 113 of the socket main body portion 110 to which the insertion plug 200 is attached, the pins 220 can be inserted into the respective positions corresponding to the arrangement of the pins 220 provided in the insertion plug 200. A hole 114 is formed.

  Thus, in a state where the insertion plug 200 is attached to the gas supply socket 100, each pin 220 is inserted into the corresponding pin hole 114. As described above, since the interval between the pin 220 and the pin hole 114 is determined in advance according to the type or suction force of the medical gas, for example, a gas supply in which oxygen gas is guided by such a connection structure. The socket 100 is prevented from being erroneously attached to the plug 200 connected to the medical device to which laughter, air, or suction force should be guided.

  Also, at the end 115 of the socket main body 110 on the side connected to the socket pedestal 120, the socket main body 110 can be used for any purpose (oxygen gas supply) in the circumferential direction around the axis J2 of the discharge port 112, as described above. A plurality of (for example, two) pins 116 extend in parallel to the axis J2 with a predetermined interval depending on whether the pin 116 is used for use, laughing air supply, air supply, suction, etc. Is provided. Also in the socket pedestal 120, pin holes 122 through which the pins 116 can be inserted are formed at positions corresponding to the arrangement of the pins 116 provided on the socket body 110.

  Thereby, in the state which connected the socket main-body part 110 to the socket base part 120, each pin 220 will be penetrated by the corresponding pin hole 114. FIG. As described above, the distance between the pin 116 and the pin hole 122 is determined in advance according to the type or suction force of the medical gas, and thus, by such a connection structure, a specific gas supply source 150 or suction source. It is prevented that the socket main body 110 having a different use is erroneously coupled to the socket base 120 attached to the wall W or the console box in a state of being connected to.

JP-A-4-341273

  Conventionally, the socket base 120 is provided with an inlet 121 and a pipe joint 123 connected to a gas supply source 150 or a suction source is viewed from the side to which the socket body 110 is coupled (the right side in FIG. 9). Is provided so as to extend outward. And in the wall part W, such as a treatment room and a general hospital room, and the console box of a sealing arm, the socket base part 120 is attached in such a posture that the pipe joint 123 extends vertically upward as shown in FIG. ing.

  The socket body 110 is connected to the socket pedestal 120 in a state of being positioned in the circumferential direction by inserting a plurality of pins 116 through the pin holes 122. With the posture as a basic posture, the insertion plug 200 is attached to the socket main body 110 in this basic posture so that a medical device such as an oxygen humidifier directly connected to the insertion plug 200 is mounted in an appropriate posture. The formation position of the pin hole 114 through which each pin 220 provided on the side is inserted is determined.

  However, recently, in order to make it possible to design a smaller console box and to flexibly design the layout of piping near the pipe joint 123, the socket pedestal 120 is directed to a direction other than the pipe joint 123 vertically upward. There is a desire to install in a posture that extends.

  However, since the gas supply socket 100 according to the prior art is provided with the pins 116 and the pin holes 122 and 114 on the assumption that the pipe joint 123 is attached in a posture extending vertically upward, the socket base is formed. When the portion 120 is attached in such a posture that the pipe joint 123 extends in a direction other than vertically above, a medical device such as an oxygen humidifier cannot be attached in an appropriate posture. There is a problem of end.

  The objective of this invention is providing the gas supply socket which can attach a medical device with a suitable attitude | position irrespective of the extension direction of a pipe joint.

The present invention is a gas supply socket in which gas is guided from a gas supply source, or suction force is guided, and an insertion plug is detachably attached,
A socket pedestal with an inlet through which gas is drawn or suction is drawn from a gas source;
A socket main body having a discharge port through which gas guided to the inflow port is discharged or suction force is guided and detachably connected to the socket base portion;
A cylindrical socket portion connected coaxially in the axial direction to the discharge port and capable of airtight insertion of the plug;
A socket main body having a plurality of pins protruding from an end portion on the side connected to the socket pedestal portion and extending in a connecting direction to the socket pedestal portion,
The socket pedestal is
A base on which the inflow port is formed, and has a cylindrical tube portion to which the socket main body portion is coupled, and a plurality of locking grooves are formed in the tube portion at predetermined intervals in the circumferential direction. A base having an uneven portion formed;
An annular pin receiving member that is mounted on the cylindrical portion so as to be rotatable about an axis of the cylindrical portion, wherein the receiving portion is formed with a through hole through which each pin provided in the socket main body portion can be inserted. , pin receiving saw including a member having engageable with locking piece with the locking groove,
The cylindrical portion is provided adjacent to the uneven portion, and is provided adjacent to the cylindrical pin receiving member holding portion to which the pin receiving member is rotatably mounted, and the pin receiving member holding portion, A cylindrical retaining portion having an outer diameter larger than the outer diameter of the pin receiving member holding portion,
The gas supply socket is characterized in that the pin receiving member is provided with a locking portion that protrudes inwardly so as to be engageable with the retaining portion when mounted on the pin receiving member holding portion. It is.
Further, the present invention is a gas supply socket in which gas is guided from a gas supply source, or suction force is guided, and a plug is detachably attached.
A socket pedestal with an inlet through which gas is drawn or suction is drawn from a gas source;
A socket main body having a discharge port through which gas guided to the inflow port is discharged or suction force is guided and detachably connected to the socket base portion;
A cylindrical socket portion connected to the discharge port coaxially in the axial direction thereof and capable of airtight insertion of the plug.
A socket main body having a plurality of pins protruding from an end portion on the side connected to the socket pedestal portion and extending in a connecting direction to the socket pedestal portion,
The socket pedestal is
A base on which the inflow port is formed, and has a cylindrical tube portion to which the socket main body portion is coupled, and a plurality of locking grooves are formed in the tube portion at predetermined intervals in the circumferential direction. A base having an uneven portion formed;
An annular pin receiving member that is mounted on the cylindrical portion so as to be rotatable about an axis of the cylindrical portion, wherein the receiving portion is formed with a through hole through which each pin provided in the socket main body portion can be inserted. A pin receiving member having a locking piece engageable with the locking groove,
The locking piece is a gas supply socket that is integrally connected to the receiving portion and is bent with respect to the receiving portion.

In the present invention, the socket body portion
It is installed in a state where it is elastically urged along the axis of the discharge port, and in this state, the discharge port is closed, and when a force against the force of elastically urging acts, A valve body that operates so as to move in a direction opposite to the direction in which it is elastically biased to open the discharge port is incorporated.

  Further, the invention is characterized in that the retaining portion is formed so that the outer diameter becomes smaller as it is separated from the pin receiving member holding portion.

  In the present invention, the retaining portion is formed with a concave groove through which the locking piece can pass when the pin receiving member is inserted through the retaining portion and attached to the pin receiving member holding portion. It is characterized by.

  According to the present invention, the pin receiving member can change the position of the through hole formed in the receiving portion in the circumferential direction as necessary in the mounted state on the base. Therefore, even if the socket pedestal is installed so that the pipe joint extends in a direction other than vertically above, the position of the through hole is changed by rotating the pin receiving member in the circumferential direction accordingly. By doing so, the socket body can be coupled to the socket base so that the medical device can be attached in an appropriate posture.

It is a longitudinal cross-sectional view of the medical gas piping connection apparatus 1 containing the gas supply socket 2 which concerns on one Embodiment of this invention. 3 is a side view of a socket main body portion 5 constituting a gas supply socket 2. FIG. It is the front view which looked at the socket main-body part 5 in FIG. 2 from the arrow III direction. It is the rear view which looked at the socket main-body part 5 in FIG. 2 from arrow IV direction. FIG. 3 is a perspective view of a socket base portion 6 that constitutes a gas supply socket 2. It is the side view which looked at the socket base part 6 in FIG. 1 from the direction perpendicular | vertical to a paper surface. It is a figure which shows the structure of the pin receiving member 33 which comprises the socket base part 6, FIG. 7 (a) is a top view of the pin receiving member 33, FIG.7 (b) is a cut surface line of FIG. It is sectional drawing seen from BB. It is sectional drawing which shows the state which installed in the wall part W the gas supply socket 100 which concerns on a prior art. It is sectional drawing which shows schematically the structure before the assembly of the gas supply socket 100 which concerns on a prior art.

  FIG. 1 is a longitudinal sectional view of a medical gas pipe connection device 1 including a gas supply socket 2 according to an embodiment of the present invention. The illustrated medical gas pipe connection device 1 is housed and provided in a casing installed on a wall of a treatment room, a general hospital room, or the like, or a console box of a ceiling arm installed on a ceiling of an operating room. The gas supply socket 2 including the pin receiving member 33, which is a feature of the present invention, and the plug 3 that is detachably attached to the gas supply socket 2 are configured.

  The gas supply socket 2 is guided with a medical gas from a supply source 4 or a suction force from a suction source (not shown). The gas supply socket 2 according to the present embodiment will be described as being configured to be connected to a supply source 4 of oxygen gas, which is one of medical gases.

  2 is a side view of the socket main body 5 constituting the gas supply socket 2. FIG. 3 is a front view of the socket main body 5 in FIG. 2 as viewed from the direction of the arrow III. FIG. It is the rear view which looked at the socket main-body part 5 in 2 from the arrow IV direction. FIG. 5 is a perspective view of the socket pedestal portion 6 constituting the gas supply socket 2, and FIG. 6 is a side view of the socket pedestal portion 6 in FIG. 1 viewed from a direction perpendicular to the paper surface.

  The gas supply socket 2 includes a socket pedestal portion 6 having an inlet 31 through which oxygen gas is guided from a supply source 4, and a discharge port 11 through which the oxygen gas guided to the inlet 31 is discharged. It consists of a socket body portion 5 that is detachably connected and fixed, and is configured by connecting these.

  As shown in FIG. 1, the socket main body 5 has a direction A2 (hereinafter referred to as “extraction direction A2”) opposite to a direction A1 into which the insertion plug 3 is inserted (hereinafter referred to as “insertion direction A1”). When the force acting against the force of resiliently urging is applied in this state, the discharge port 11 is closed and moved in the insertion direction A1. The valve body 12 that operates to open the discharge port 11 and a plug insertion hole that communicates with the discharge port 11 and that is coaxial with the axis J11 of the discharge port 11 are formed so that the plug 3 can be inserted in an airtight manner. A plurality of (two in this embodiment) protruding from the cylindrical socket portion 13 and the end portion 14 on the side connected to the socket pedestal portion 6 and extending along the axis J11 of the discharge port 11 Pins 15a and 15b are coaxial with the axis J11 of the discharge port 11, and are socket bases 6 configured to include a cylindrical connecting portion 16 which is screwed in. Here, the insertion direction A1 and the drawing direction A2 are directions parallel to the axis J11 of the discharge port 11.

  The socket pedestal portion 6 includes a base 32 on which an inflow port 31 is formed and a pin receiving member 33 described later. The base 32 surrounds the valve body 43, a base body 41, a spherical valve body 42 accommodated in the base body 41, a holder 44 having a valve hole 43 opened and closed by the valve body 42, and the valve hole 43. An annular seal member 45 attached to the holder 44 and a spring 46 that biases the valve body 42 toward the seal member 45 are provided.

  The valve body 42 is made of metal or synthetic resin. The seal member 45 is a member having a circular cross section made of a material having flexibility and elasticity, such as rubber, synthetic rubber, or synthetic resin, and is realized by an O-ring. Such a sealing member 45 constitutes a valve seat on which the valve body 42 is seated. The spring 46 is realized by a compression coil spring, and keeps the valve body 42 seated on the seal member 45. The valve body 42, the holder 44, the seal member 45, and the spring 46 constitute a channel opening / closing means.

  The pedestal main body 41 accommodates the valve body 42 and the spring 46, and has a base 48 that defines a valve chamber 47 in which the holder 44 is mounted together with the seal member 45, and a cylindrical shape that defines a fitting space 49 that communicates with the valve chamber 47. The cylinder part 50 is provided. The base 48 is also formed with a connection hole 51 in which the pipe joint 34 is welded or packed and connected in an airtight manner, and a passage 52 that connects the connection hole 51 and the valve chamber 47.

  The pipe joint 34 is formed in a cylindrical shape, and one end portion in the extending direction of the axis J34 is connected to the base portion 48 of the pedestal main body 41. Specifically, as shown in FIG. 6, the axis line J <b> 34 is connected so as to intersect perpendicularly to the axis line J <b> 50 of the cylindrical portion 50 in the pedestal main body 41. An inlet 31 through which oxygen gas is guided from the supply source 4 is provided at the other end of the pipe joint 34 in the extending direction of the axis J34. A supply source 4 is connected to the pipe joint 34 through a tube body such as a tube, and thereby oxygen gas is introduced into the valve chamber 47 from the supply source 4. The oxygen gas introduced into the valve chamber 47 is introduced into the fitting space 49 when the valve body 42 moves in a direction away from the seal member 45 and the valve hole 43 is opened.

  An inner screw portion 60 in which an inner screw is engraved is formed on the inner peripheral portion of the cylindrical portion 50 that defines the fitting space 49. On the other hand, an outer thread portion 61 is formed on the outer peripheral portion of the cylindrical connecting portion 16 in the socket body portion 5.

  Therefore, the connecting portion 16 is detachably attached to the base body 41 of the base 32 by screwing the outer screw portion 61 of the connecting portion 16 with the inner screw portion 60 of the cylindrical portion 50. An annular seal member 64 is externally attached to the connecting portion 16 adjacent to the outer screw portion 61, and the base body 41 and the connecting portion 16 are airtightly connected by the seal member 64 interposed therebetween. The The seal member 64 is made of, for example, an O-ring.

  A filter 17 made of, for example, a porous material obtained by sintering metal powder is attached to the connection portion 16 in an attachment hole 20 defined by the inner peripheral surface thereof. The filter 17 includes a cylindrical portion 17a having a cylindrical shape, a bottom portion 17b that closes one axial end portion of the cylindrical portion 17a, and a columnar protrusion 17c that protrudes outward from the bottom portion 17b in the axial direction of the cylindrical portion 17a. And a flange portion 17d projecting radially outward from the other axial end of the cylindrical portion 17a. The cylindrical portion 17a, the bottom portion 17b, the protrusion 17c, and the flange portion 17d are integrally formed. Become.

  In the filter 17, a valve seat ring 19 that forms the discharge port 11 is screwed to an end surface of the flange portion 17 d on the side opposite to the side where the tube portion 17 a is connected, and together with the rubber packing 21, It is accommodated in the mounting hole 20 of the connecting portion 16. More specifically, the filter 17 is accommodated in a state in which the protrusion 17 c protrudes outward from the connecting portion 16.

  An inner thread portion 60 in which an inner screw is engraved is formed on the inner circumference portion of the connecting portion 16, and an outer screw portion 61 in which an outer screw that can be screwed into the inner screw is engraved on the outer circumference portion. By screwing the formed nut 22 to the connecting portion 16, the flange portion 17 d and the valve seat ring 19 of the filter 17 accommodated in the mounting hole 20 are sandwiched between the nut 22 and the socket portion 13. . In this way, the filter 17 is detachably attached to the connecting portion 16 and is secured by the nut 22 in the attached state.

  The protrusion 17 c of the filter 17 attached in this way presses the valve element 42 against the urging force of the spring 46 by the connecting portion 16 being screwed relative to the cylindrical portion 50 of the base body 41. Then, the valve body 42 is moved away from the seal member 45. As a result, the valve hole 43 is opened, and the oxygen gas introduced to the valve chamber 47 is introduced into the fitting space 49. That is, oxygen gas is guided to the fitting space 49 in a state where the socket body 5 is connected to the socket base 6.

  The base 17 of the compression spring 23 is in contact with and supported by the bottom 17 b of the filter 17, and the valve body 12 is attached to the distal end of the compression spring 23. The valve body 12 is spring-biased elastically by the compression spring 23 held by the filter 17 toward the discharge port 11 formed in the valve seat ring 19 along the axis J11. A valve seat is formed on the inner peripheral edge of the discharge port 11 with an O-ring 24 attached to the distal end side of the valve body 12 and the valve body 12 being elastically biased. The discharge port 11 is closed by elastically contacting the portion 25.

  Between the discharge port 11 and the cylindrical portion 65 of the socket portion 13, the inner diameter is smaller than that of the insertion cylindrical portion 66, and the cylindrical tip portion 3 a of the insertion plug 3 can be inserted in parallel with the axis J11 and In order to maintain the airtightness between the plug plug 3 inserted into the inner peripheral portion of the throttle portion 67, a throttle portion 67 is formed which holds and holds the packing 21 from the downstream side in the insertion direction A1. A packing 21 is mounted between the throttle portion 67 and the valve seat ring 19. The socket 13 has an opening 68 on the side opposite to the discharge port 11 as an insertion port 68, and the insertion plug 3 can be removably inserted through the insertion port 68.

  When the plug 3 attached through the insertion port 68 is inserted to a position where the tip 3a presses the annular portion 69 of the valve body 12 together with the packing 21, the valve body 12 is compressed by the tip 3a. The spring 23 is pressed against the elastic force of the spring 23, whereby the valve body 12 is retracted and the discharge port 11 is opened. In this way, when the valve body 12 is opened by the insertion plug 3, the oxygen gas in the fitting space 49 is supplied to the passage 3b in the insertion plug 3 through the discharge port 11 and the inflow port 3b. Is done.

  As shown in FIG. 3, the cover ring 70 has an identification mark 71 printed on the surface for clearly indicating that it is for oxygen gas. A circular hole 70a is formed at the center of the cover ring 70, and the end of the socket part 13 is exposed from the circular hole 70a.

  When the insertion plug 3 is inserted into the gas supply socket 2, the insertion plug 3 is inserted from the distal end portion 3 a into the insertion port 68 of the socket portion 13 along the insertion direction A <b> 1. The grip portion 7 on which the insertion plug 3 is protruded has a predetermined interval in the circumferential direction around the axis of the insertion plug 3 according to the type or suction force of the medical gas to be guided to the insertion plug 3. A plurality of (two in the present embodiment) pins 72 a and 72 b are provided so as to extend in parallel to the insertion plug 3. And also in the socket part 13 of the socket main-body part 5 in which the insertion plug 3 is mounted | worn, each pin 72a, 72b is each in the position corresponding to arrangement | positioning of each pin 72a, 72b provided in the insertion plug 3. Insertable pin holes 73a and 73b are formed.

This prevents the plug 3 connected to the medical device to which laughter, air, or suction force should be guided from being erroneously attached to the gas supply socket 2 through which oxygen gas is guided. ing. Similarly, with respect to each gas supply socket to which laughter, air, and suction force are respectively guided, it is possible to prevent erroneous insertion of plugs for different applications due to differences in the pin and pin hole layout depending on the application. Has been.
In the present embodiment, the arrangement of the pins and the pin holes prevents the gas supply socket 2 and the insertion plug 3 for different uses from being erroneously connected, but in other embodiments, the gas supply socket 2 It can also be realized by varying the shape of the plug-in portion (such as a quadrangle, hexagon, and circumferential groove) and the shape of the plug-in plug for each application.

  Also, in the end portion 14 of the socket body portion 5 on the side connected to the socket pedestal portion 6, as shown in FIG. 4, the socket body portion 5 has any application in the circumferential direction around the axis J <b> 11 of the discharge port 11. The two pins 15a and 15b extend in parallel to the axis J11 with a predetermined interval depending on whether they are used (for oxygen gas supply, laughter supply, air supply, suction, etc.). Is provided. In the present embodiment, two pins 15a and 15b are provided at positions where α = β = 20 ° for supplying oxygen gas.

  FIG. 7 is a view showing the configuration of the pin receiving member 33 that constitutes the socket base portion 6. FIG. 7A is a plan view of the pin receiving member 33 and corresponds to the state seen from the right side in FIG. Moreover, FIG.7 (b) is sectional drawing seen from the cut surface line BB of Fig.7 (a). Hereinafter, with reference to FIG. 1 and FIG. 5 to FIG. 7, the configuration of the portion where the two pins 15 a and 15 b provided on the socket body 5 are connected in the socket base portion 6 will be described.

  The cylindrical portion 50 of the base 32 of the socket base 6 is provided adjacent to the concave and convex portions 82 and the concave and convex portions 82 in which a plurality of locking grooves 81 are formed in the outer peripheral portion at predetermined intervals in the circumferential direction. A pin receiving member holding portion 83 having a right cylindrical outer peripheral surface with an outer diameter D1 and a pin receiving member 33 to be described later rotatably mounted thereon, and provided adjacent to the pin receiving member holding portion 83; And a retaining portion 84 having an outer diameter D2 larger than the outer diameter D1 of the receiving member holding portion 83. The retaining portion 84, the pin receiving member holding portion 83, and the concavo-convex portion 82 are provided in this order from the distal end side of the cylindrical portion 50 toward the base portion 48.

  Specifically, the concave and convex portion 82 has a bottom portion 81 a in the locking groove 81 that is flush with the outer peripheral surface of the pin receiving member holding portion 83. Moreover, the convex part 81b provided between the adjacent latching grooves 81 is set so that the height from the bottom part 81a can be engaged with a second part 92b of the receiving part 92 described later. In this embodiment, the concavo-convex portion 82 is configured by forming locking grooves 81 at intervals of 30 ° in the circumferential direction.

  The retaining portion 84 is formed such that a portion connected to the pin receiving member holding portion 83 has an outer diameter D2. Thereby, a stepped portion 84 a is formed in the pin receiving member holding portion 83. Further, the retaining portion 84 is formed so that the outer diameter decreases as the distance from the pin receiving member holding portion 83 increases.

  The pin receiving member 33 is formed in a generally annular shape, and has a plate-like receiving portion 92 formed with through holes 91a and 91b through which the two pins 15a and 15b provided in the socket main body portion 5 can be respectively inserted. And a locking piece 93 that can be engaged with the locking groove 81 of the concavo-convex portion 82.

  The through holes 91a and 91b are formed at positions corresponding to the positions of the respective 15a and 15b provided in the socket main body portion 5, and in this embodiment, as shown in FIG. 7A, α = β = 20. It is formed at the position where it becomes °.

  The receiving portion 92 is an annular plate-like portion having a through-hole through which the pin receiving member holding portion 83 can be inserted, and an outer peripheral surface of a virtual right circular cylinder having an outer diameter d1 larger than the outer diameter D2 of the retaining portion 84. A first portion 92a having an inner peripheral surface corresponding to the first portion 92a, a second portion 92b having a locking portion 94 protruding inward from the outer peripheral surface of the virtual right circular cylinder, and a third portion provided with a locking piece 93. 92c. In the present embodiment, the three second portions 92b are formed at intervals in the circumferential direction, and the third portions 92c are formed 180 ° apart in the circumferential direction.

  The locking piece 93 is integrally connected to the third portion 92 c of the receiving portion 92 and is provided to be bent so as to be substantially perpendicular to the receiving portion 92. The locking piece 93 is provided on the third portion 92c so as to protrude inward from the outer peripheral surface of the virtual right circular cylinder. As shown in FIG. 7, a notch 95 extending from the radially inner side to the outer side is formed between the first portion 92a and the second portion 92b and between the first portion 92a and the third portion 92c. Are formed respectively.

  The socket base 6 has such a pin receiving member 33 mounted on the pin receiving member holding portion 83 of the base 32, and the locking piece 93 of the pin receiving member 33 is engaged with the locking groove 81 of the uneven portion 82. It is composed by doing.

  Thereby, the pin receiving member 33 can change the position of the through-holes 91a and 91b formed in the receiving portion 92 in the circumferential direction as necessary. Therefore, even if the socket pedestal portion 6 is installed so that the pipe joint 34 extends in a direction other than vertically above, the pin receiving member 33 is rotated in the circumferential direction accordingly, and the through hole 91a is provided. , 91b can be changed so that the socket body 5 can be connected to the socket base 6 so that the medical device can be attached in an appropriate posture.

  Further, according to the present embodiment, the pin receiving member 33 attached to the pin receiving member holding portion 83 is configured such that the locking portion 94 is locked to the stepped portion 84 a of the retaining portion 84. Therefore, it is possible to prevent the pin receiving member 33 from being easily detached from the base 32. Therefore, when the pin receiving member 33 is rotated in the pin receiving member holding portion 83, the pin receiving member 33 can be prevented from being detached from the base 32 and falling.

  Further, according to the present embodiment, the retaining portion 84 is formed so that the outer diameter decreases as the distance from the pin receiving member holding portion 83 increases. As described above, since the locking portion 94 is formed so as to be engageable with the stepped portion 84a, when the pin receiving member 33 is inserted into the retaining portion 84 and attached to the pin receiving member holding portion 83, The 2nd part 92b in which the latching | locking part 94 is provided will be mounted | worn with elastic deformation. Therefore, by adopting the above-described configuration, when the retaining portion 84 is inserted, the second portion 92b is mounted while gradually increasing the deformation amount, so that it can be easily mounted.

  Further, according to the present embodiment, since the notch 95 is formed between the first portion 92a and the second portion 92b, when inserting the retaining portion 84 as described above, a slight force is required. The second portion 92b can be elastically deformed.

  Further, according to the present embodiment, it is not necessary to provide the base 32 with pin holes through which the pins 15a and 15b can be inserted, so that the usage to be used (for oxygen gas supply, laughter supply, air supply, The same base 32 can be used regardless of whether it is for suction or the like. In other words, it is possible to eliminate the necessity of manufacturing a plurality of types of bases having different pin hole arrangements depending on the application to be used, which has an advantage in inventory management.

  In the present embodiment, as described above, the locking piece 93 is provided in the third portion 92c so as to protrude inward from the outer peripheral surface of the virtual right circular cylinder. Therefore, as shown in FIG. 5, a concave groove 84 b through which the locking piece 93 can be passed when the retaining portion 84 is inserted is formed in the retaining portion 84 in advance. Therefore, by inserting the retaining portion 84 in a state where the locking piece 93 is aligned with the position of the concave groove 84b, an extra force for elastically deforming the locking piece 93 is not necessary and can be easily mounted. Can do.

DESCRIPTION OF SYMBOLS 1 Medical gas piping connection apparatus 2 Gas supply socket 3 Plug plug 4 Supply source 5 Socket main-body part 6 Socket base part 11 Outlet 12 Valve body 13 Socket part 15a, 15b Pin 31 Inflow port 32 Base 33 Pin receiving member 50 Cylindrical part 81 Locking groove 82 Concavity and convexity part 83 Pin receiving member holding part 84 Retaining part 84b Concave groove 91a, 91b Through hole 92 Receiving part 93 Locking piece 94 Locking part

Claims (5)

A gas supply socket in which gas is guided from a gas supply source or suction force is guided, and a plug is detachably attached,
A socket pedestal with an inlet through which gas is drawn or suction is drawn from a gas source;
A socket main body having a discharge port through which gas guided to the inflow port is discharged or suction force is guided and detachably connected to the socket base portion;
A cylindrical socket portion connected coaxially in the axial direction to the discharge port and capable of airtight insertion of the plug;
A socket main body having a plurality of pins protruding from an end portion on the side connected to the socket pedestal portion and extending in a connecting direction to the socket pedestal portion,
The socket pedestal is
A base on which the inflow port is formed, and has a cylindrical tube portion to which the socket main body portion is coupled, and a plurality of locking grooves are formed in the tube portion at predetermined intervals in the circumferential direction. A base having an uneven portion formed;
An annular pin receiving member that is mounted on the cylindrical portion so as to be rotatable about an axis of the cylindrical portion, wherein the receiving portion is formed with a through hole through which each pin provided in the socket main body portion can be inserted. , pin receiving saw including a member having engageable with locking piece with the locking groove,
The cylindrical portion is provided adjacent to the uneven portion, and is provided adjacent to the cylindrical pin receiving member holding portion to which the pin receiving member is rotatably mounted, and the pin receiving member holding portion, A cylindrical retaining portion having an outer diameter larger than the outer diameter of the pin receiving member holding portion,
The gas supply socket is characterized in that the pin receiving member is provided with a locking portion that protrudes inwardly so as to be engageable with the retaining portion when mounted on the pin receiving member holding portion. . A gas supply socket in which gas is guided from a gas supply source or suction force is guided, and a plug is detachably attached,
A socket pedestal with an inlet through which gas is drawn or suction is drawn from a gas source;
A socket main body having a discharge port through which gas guided to the inflow port is discharged or suction force is guided and detachably connected to the socket base portion;
A cylindrical socket portion connected to the discharge port coaxially in the axial direction thereof and capable of airtight insertion of the plug.
A socket main body having a plurality of pins protruding from an end portion on the side connected to the socket pedestal portion and extending in a connecting direction to the socket pedestal portion,
The socket pedestal is
A base on which the inflow port is formed, and has a cylindrical tube portion to which the socket main body portion is coupled, and a plurality of locking grooves are formed in the tube portion at predetermined intervals in the circumferential direction. A base having an uneven portion formed;
An annular pin receiving member that is mounted on the cylindrical portion so as to be rotatable about an axis of the cylindrical portion, wherein the receiving portion is formed with a through hole through which each pin provided in the socket main body portion can be inserted. A pin receiving member having a locking piece engageable with the locking groove,
The gas supply socket, wherein the locking piece is integrally connected to the receiving portion and is bent with respect to the receiving portion. In the socket body,
It is installed in a state where it is elastically urged along the axis of the discharge port, and in this state, the discharge port is closed, and when a force against the force of elastically urging acts, The gas supply socket according to claim 1 or 2, wherein a valve body that operates to move in a direction opposite to a direction in which it is elastically biased to open the discharge port is incorporated. .   The gas supply socket according to claim 3, wherein the retaining portion is formed so that an outer diameter becomes smaller as it is separated from the pin receiving member holding portion. The retaining portion is formed with a concave groove through which the locking piece can pass when the pin receiving member is inserted through the retaining portion and attached to the pin receiving member holding portion. The gas supply socket according to any one of claims 1 to 4 .