JP2007127265A - Fluid supplying system and fluid coupling - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the fluid from leaking at the connection place between a fluid supplying unit and a fluid receiving unit likely generated when the latter is removed from the former and prevent the fluid from remaining in this connection place as much as practicable. <P>SOLUTION: A fluid supplying system has a first valve FB equipped with a tubular portion 10 furnished at the pipe end 101 with a valve seat 103 facing the pipe base part 102 and a valve element 11 seated on the seat 103 with resilience from the side with the pipe base part 102. A second valve SB is equipped with a plug 20 having a seal passage 201 closed liquid-tightly while the fluid supplying unit C is in the non-filled state, and pushed wider resiliently through insertion of the tubular portion 10. Behind the inner end 202 of the plug 20, a valve opening actuator 21 is installed which intrudes into the pipe end 101 of the tubular portion 10 protruded from the inner end 202 of the plug 20 through the seal passage when the fluid supplying unit is in the filled state, and presses the valve element 11 to cause seating. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention comprises a fluid supply body prepared as a tank or cartridge that stores fluid therein, and a fluid receiving body having a mechanism for consuming the fluid, and the fluid receiving body is loaded with the fluid supply body. The present invention relates to a fluid supply system that supplies fluid stored in a fluid supply body to a fluid receiving body, and further to improvement of a fluid coupling.

  When the supply tank is loaded into the main body, the spherical valve body of the main body that is in the closed position when not loaded is similarly brought into contact with the spherical valve body of the supply tank that is in the closed position when not loaded. There is a mechanism in which the liquid fuel in the supply tank flows into the main body by retreating to the valve opening position. (See Patent Document 1)

However, in such a mechanism, when the liquid fuel is consumed and the supply tank is removed, the both spherical valve bodies are returned to their closed positions, but when the supply tank is loaded, the liquid fuel is not Since both the spherical valve bodies pass through the vicinity of the contact point with the counterpart, the liquid fuel remains in the vicinity of the contact point after the removal.
JP 2004-127824 A

  The main problem to be solved by the present invention is that in this type of mechanism, a disadvantage that occurs when a fluid supply body (for example, a supply tank) is removed from a fluid receiving body (for example, a main body), that is, It is in the point which prevents the leakage of the fluid from a connection location, and the residual of the fluid to this connection location as much as possible.

In order to solve the above-described problems, in the first invention, the fluid supply system has the following configurations (1) to (4).
(1) a fluid supply body having a first flow path and a first valve for opening and closing the first flow path;
A fluid receiving body having a second flow path and a second valve for opening and closing the second flow path;
A fluid supply system that opens a first valve and a second valve to allow communication between a first flow path and a second flow path by loading a fluid supply body into a fluid receiving body,
(2) One of the first valve and the second valve includes a tubular portion having a valve seat facing the tube base side at the tube end, and a valve seated on the valve seat by a spring from the tube base side. Has a body,
(3) The other of the first valve and the second valve is liquid-tightly closed when the fluid supply body is not loaded, and has a sealing passage that is elastically expanded by insertion of the tubular portion. With
(4) In the state where the fluid supply body is loaded in the back of the inner end of the plug body, the valve body is opened through the seal passage and enters the tube end of the tubular portion protruding from the inner end of the plug body to press and separate the valve body. A valve operating body is provided.

When the fluid supply body is not loaded, the first flow path is closed by the first valve and the second flow path is closed by the second valve.
When the fluid supply body is loaded, the tube end of the tubular portion enters the flow path blocked by the plug body while expanding the seal passage of the plug body, and the valve including the plug body is opened. . At the same time, in this state, the valve opening operation body enters the tubular portion from the tube end of the tubular portion, the valve body is pressed and separated, and the valve having the tubular portion is also opened. As a result, the first flow path and the second flow path are communicated, and the fluid stored in the fluid supply body is supplied and supplied to the fluid receiving body side.
When the operation of removing the fluid supply body loaded in the fluid receiving body is started from the fluid receiving body in this way, first, the valve opening operation body is pulled out from the tube end of the tubular portion, and the valve body is seated on the valve seat of the tubular portion. The valve with the tubular part is closed. Thereby, it will be in the state where the 1st channel and the 2nd channel do not communicate. Next, when the tubular portion is moved by the above operation from the inner end of the plug body to a position where it does not protrude from the tube end side, the seal passage is sequentially liquid-tightly closed from the inner end side by the elastic return of the plug body. The valve provided with is also closed. Thus, when the fluid supply body is completely removed from the fluid receiving body, the fluid does not leak from the outer end of the plug body, and the fluid is prevented from adhering to the tube end side of the tubular portion as much as possible. Can do.

  A guide member having an introduction hole in the tubular portion may be provided at the tip of the outer end of the plug body.

  In this case, when the fluid supply body is loaded into the fluid receiving body, the tubular portion can be guided to a position where the tubular portion appropriately enters the sealing passage of the plug body by the introduction hole of the guide member.

Moreover, in order to solve the said subject, in 2nd invention, the fluid supply system shall be provided with the structure of the following (1)-(3).
(1) a fluid supply body having a first flow path and a first valve for opening and closing the first flow path;
A fluid receiving body having a second flow path and a second valve for opening and closing the second flow path;
A fluid supply system that opens a first valve and a second valve to allow communication between a first flow path and a second flow path by loading a fluid supply body into a fluid receiving body,
(2) The second valve closes the tubular portion having the inside of the tube as a part of the second flow path and the tube base portion of the tubular portion in a liquid-tight manner, and elastically deforms and opens when the tubular portion side becomes high pressure. It has a valve body to be valved,
(3) The first valve includes a plug body that is liquid-tightly closed when the fluid supply body is not loaded and has a seal passage that is elastically expanded by insertion of the tubular portion.

When the fluid supply body is not loaded, the first flow path is closed by the first valve and the second flow path is closed by the second valve.
When the fluid supply body is loaded, the tube end of the tubular portion enters the first flow path blocked by the plug body while expanding the seal passage of the plug body, and the first valve is opened. In this state, fluid enters the tubular portion, the tubular portion side becomes high pressure, the valve body is elastically deformed, and the second valve is also opened. As a result, the first flow path and the second flow path are communicated, and the fluid stored in the fluid supply body is supplied and supplied to the fluid receiving body side.
When the operation of removing the fluid supply body loaded in the fluid receiving body from the fluid receiving body is started in this way, the tubular portion extends from the inner end of the plug body closing the first flow path to a position where the tube terminal side does not protrude. The seal passage is sequentially liquid-tightly closed from the inner end side by the elastic return of the plug body, and when the seal passage is closed, no fluid flows into the tubular portion. Decreases, the valve body returns elastically, and the second valve is also closed. Thereby, when the fluid supply body is completely removed from the fluid receiving body, the fluid does not leak as much as possible from the tube end side of the tubular portion, and the fluid does not leak from the outer end side of the plug body.

  The tube end of the tubular portion may be closed and a through hole may be formed in the side portion on the tube end side.

  In this case, when the operation of removing the fluid supply body loaded in the fluid receiving body from the fluid receiving body is started, the through hole is immediately closed by the passage surface of the seal passage and the second valve is immediately closed. Can do.

  A guide member having an introduction hole in the tubular portion may be provided at the tip of the outer end of the plug body.

  In this case, when the fluid supply body is loaded into the fluid receiving body, the tubular portion can be guided to a position where the tubular portion appropriately enters the sealing passage of the plug body by the introduction hole of the guide member.

  A nested body having a liquid storage function may be accommodated in the tubular portion.

  In this case, even if fluid remains in the tubular portion when the fluid supply body is removed from the fluid receiving body, it can be prevented from leaking out from the tube terminal side as much as possible.

Moreover, in order to solve the said subject, in 3rd invention, the fluid supply system shall be provided with the structure of the following (1)-(5).
(1) a fluid supply body having a first flow path and a first valve for opening and closing the first flow path;
A fluid receiving body having a second flow path and a second valve for opening and closing the second flow path;
A fluid supply system that opens a first valve and a second valve to allow communication between a first flow path and a second flow path by loading a fluid supply body into a fluid receiving body,
(2) Either one of the first valve and the second valve includes the inside of the pipe as a part of the first flow path or the second flow path, closes the pipe end, and includes a through hole in a side portion on the pipe end side. Having a tubular portion,
(3) The other of the first valve and the second valve includes a housing having the inside as a part of the first flow path or the second flow path and having a valve seat around the valve hole therein. The urging means that constantly urges the valve body and the direction in which the valve body is seated on the valve seat is contained,
(4) Furthermore, the other of the first valve and the second valve has a through hole through which the tubular portion is elastically expanded, and is combined with the housing from the outside so as to communicate with the valve hole. Having a sealed body,
(5) In the process of loading the fluid supply body into the fluid receiving body, the tube end of the tubular portion is attached after the side portion positioned closer to the base portion side of the tubular portion than the through hole of the tubular portion is sealed by the seal body. The valve body is pressed and separated against the force.

  When the fluid supply body is not loaded, the first flow path is closed by the first valve and the second flow path is closed by the second valve. When the fluid supply body is loaded, the tubular portion enters the valve hole of the housing from the outside while elastically expanding the through hole of the seal body. Thereby, first, the side part located in the base part side of a tubular part rather than the through-hole of a tubular part is sealed with a sealing body. Next, when the fluid supply body is completely loaded, the pipe end of the tubular portion presses and separates the valve body seated on the valve seat of the housing by the urging force of the urging means. As a result, it is possible to create a state in which the first flow path and the second flow path are communicated and the fluid stored in the fluid supply body is supplied and supplied to the fluid receiving body side. When the operation of removing the fluid supply body loaded in the fluid receiving body is started from the fluid receiving body in this way, the tubular portion is moved in a direction to come out from the valve hole of the housing, and the valve body is seated on the valve seat of the housing and the housing side Is closed. Until the flow path on the housing side is closed, the side portion positioned closer to the base portion side of the tubular portion than the through hole of the tubular portion is continuously sealed by the seal body. Thereby, in the process of removing the fluid supply body from the fluid receiving body, it is possible to reliably prevent the fluid from leaking out from the flow path on the housing side.

If a nested body having a liquid storage function is stored in the tubular portion, the fluid is prevented from leaking out from the through hole of the tubular portion as much as possible when the fluid supply body is completely removed from the fluid receiving body. be able to.
Further, if one end of the insert body is located at a position where the end of the insert body enters the tube end side rather than the hole edge on the tube end side in the through hole, the leakage of the fluid from the through hole is more reliably prevented. be able to.

  Moreover, if the recessed part which penetrates the pipe part side of a tubular part is formed in the said valve body, the dimension of the connection direction at the time of the connection of a 1st valve and a 2nd valve can be made as small as possible.

  If the fluid supply body is a fuel cartridge that constitutes a fuel cell of a portable electronic device, the fluid such as methanol used as fuel for the fuel cell is prevented from leaking to the outside as much as possible when the fuel cartridge is replaced. can do.

  Moreover, in order to solve the said subject, in 4th invention, a fluid coupling consists of a 1st valve assembled | attached to the fluid supply body demonstrated above, and a 2nd valve assembled | attached to a fluid receiving body. It is supposed to be.

  According to the fluid supply system and the fluid coupling according to the present invention, the first flow path and the second flow path are communicated only after the tube end of the tubular body enters from the inner end of the plug body. In this case, fluid does not leak out from the outer end of the plug body, and when the fluid supply body is removed from the fluid receiving body, the fluid is prevented from remaining as much as possible at the tube end of the tubular body. be able to.

  The best mode for carrying out the present invention will be described below with reference to FIGS.

  The fluid supply system according to this embodiment includes a fluid supply body C prepared as a tank or cartridge that stores fluid therein, and a fluid receiving body P having a mechanism for consuming this fluid. The fluid stored in the fluid supply body C is supplied to the fluid reception body P by loading the fluid supply body C in the reception body P. When the fluid stored in the fluid supply body C has been supplied, that is, when it has been consumed, the fluid supply body C is removed from the fluid reception body P, and a new fluid supply is supplied to the fluid reception body P. The body C is loaded or the fluid supply C refilled with fluid is loaded again. In particular, when removing the fluid supply body C once loaded in the fluid receiving body P, such a fluid supply system prevents the fluid remaining at the connection portion between the two from leaking out to the outside as much as possible.

  Therefore, when such a fluid supply body C is used as a fuel cartridge constituting a fuel cell of a portable electronic device, a fluid such as methanol used as fuel for the fuel cell leaks to the outside as much as possible when the fuel cartridge is replaced. You can avoid it.

That is, such a fluid supply system is
A fluid supply C having a first flow path F and a first valve FB for opening and closing the first flow path F;
A fluid receiving body P having a second flow path S and a second valve SB for opening and closing the second flow path S;
By loading the fluid supply body P into the fluid receiving body P, the first valve FB and the second valve SB are opened, and the first flow path F and the second flow path S are communicated.

  Further, the first valve FB and the second valve SB constitute a fluid coupling.

(First configuration example)
FIGS. 1-6 shows one of the specific structural examples of a fluid supply system. Here, FIG. 1 shows a state where a fluid supply body C is loaded into a fluid receiving body P constituting such a fluid supply system, and FIG. 2 shows a state where both of them are separated. 3 and FIG. 4 show a state in which the parts constituting the first valve FB constituting the fluid supply system are separated, and FIGS. 5 and 6 show the second valve SB constituting the fluid supply system. Each component constituting the side is shown in a separated state.

  One of the first valve FB and the second valve SB of the fluid supply system includes a tubular portion 10 provided with a valve seat 103 facing the tube base 102 side on the tube terminal 101, and an impact from the tube base 102 side. Is provided with a valve body 11 seated on the valve seat 103. In the illustrated example, a tubular portion 10 and a valve body 11 are provided for the first valve FB.

  The other of the first valve FB and the second valve SB has a seal passage 201 that is liquid-tightly closed when the fluid supply body C is not loaded and is elastically expanded by insertion of the tubular portion 10. A plug 20 is provided. In the example shown in the figure, a plug body 20 for the second valve SB is provided.

  In the state where the fluid supply body C is loaded, the valve body 20 enters the tube terminal 101 of the tubular portion 10 protruding from the inner end 202 of the plug body 20 through the seal passage 201 in the state where the fluid supply body C is loaded. A valve opening operation body 21 that presses and separates the body 11 is provided.

  When the fluid supply body C is not loaded, the first flow path F is closed by the first valve FB, and the second flow path S is closed by the second valve SB.

  When the fluid supply body C is loaded, the tube terminal 101 of the tubular portion 10 is placed in the flow path (second flow path S in the illustrated example) closed by the plug body 20 while expanding the seal passage 201 of the plug body 20. The valve (second valve SB in the illustrated example) provided with the plug 20 enters the opened state. At the same time, in this state, the valve-opening operation body 21 enters the tubular portion 10 from the tube end 101 of the tubular portion 10, the valve body 11 is pressed and separated, and the valve having the tubular portion 10 (the first example in the illustrated example). The valve FB) is also opened. Thereby, the first flow path F and the second flow path S are communicated, and the fluid stored in the fluid supply body C is supplied and supplied to the fluid receiving body P side.

  When the operation of removing the fluid supply body C loaded in the fluid receiving body P from the fluid receiving body P is started in this way, first, the valve opening operation body 21 comes out from the tube terminal 101 of the tubular portion 10 and the valve body 11 is tubular. A valve (first valve FB in the illustrated example) that is seated on the valve seat 103 of the portion 10 and includes the tubular portion 10 is closed. Thereby, the 1st flow path F and the 2nd flow path S will be in the state which does not communicate. Next, when the tubular portion 10 is moved by the above operation from the inner end 202 of the plug body 20 to a position where it does not protrude from the pipe terminal 101 side, the seal passage 201 is sequentially liquidated from the inner end 202 side by the elastic return of the plug body 20. The valve (closed valve SB in the illustrated example) that is tightly closed and includes the plug 20 is also closed. Thereby, when the fluid supply body C is completely removed from the fluid receiving body P, the fluid does not leak from the outer end side of the plug body 20 and the fluid is also possible on the tube terminal 101 side of the tubular portion 10 as much as possible. It can be prevented from sticking.

  In the illustrated example, the tubular portion 10 constituting the first valve FB is mainly configured by a long cylindrical body 104 having both ends of the cylinder open. A circular taper surface 105 is formed at one end of the long cylindrical body 104 so as to narrow the inner diameter of the long cylindrical body 104 toward the opening at one end of the cylinder. It functions as a seat 103. Further, a male screw portion 104 a is formed on the outer periphery of the long cylindrical body 104 on the other end side of the cylinder. Further, a seal ring 106 is formed on the other end side of the cylinder sandwiching the male screw portion 104a, and a circumferential step surface 104c facing the other end side of the tube is formed on one end side of the cylinder sandwiching the male screw portion 104a. A large diameter portion 104b is formed.

  The valve body 11 constituting the first valve FB is provided at the tip of the shaft 12 inserted into the long cylinder body 104 from the other end side of the long cylinder body 104. The shaft 12 has an outer diameter smaller than the inner diameter of the long cylindrical body 104 and is shorter than the long cylindrical body 104, and is housed in the long cylindrical body 104 so as to be movable in the direction of the cylindrical axis. The first flow path F of the fluid is configured between the outer surface of the first cylindrical body 104 and the inner surface of the long cylindrical body 104. The valve body 11 includes a head portion 111 and a leg portion 112, and is made of rubber or plastic having rubber-like elasticity. A longitudinal hole 121 opened at the distal end and continuing in the axial direction of the shaft 12 is provided on the distal end side of the shaft 12, and a lateral hole 122 communicating with the longitudinal hole 121 inside the shaft 12 and opened laterally on the side surface is provided. The valve body 11 is attached to the tip end of the shaft 12 with the leg 112 fitted into the vertical hole 121. The lateral hole 122 functions as an air vent hole for this attachment.

  The first valve FB includes a cylindrical socket 13 with one end of the cylinder closed. The socket 13 has a female screw part 131 in the cylinder from the position approximately in the middle of the cylinder axis direction to the closed surface at one end of the cylinder. A circumferential step surface 132 facing the other end of the cylinder is formed at a position approximately in the middle of the socket 13 in the cylinder axis direction. Further, a connecting pipe portion 133 is formed on one end side of the socket 13 so as to protrude integrally from the side portion of the socket 13 to the side. The inside of the connection pipe part 133 is communicated with the socket 13, and a fluid is fed into the tubular part 10 through the transfer pipe Ca connected to the connection pipe part 133 and the connection pipe part 133. Further, a positioning convex portion 134 of the compression coil spring 14 is formed at a substantially central portion of the closing surface of the socket 13 so as to protrude toward the other end of the cylinder.

  And in the example of illustration, the long cylinder which inserted the shaft 12 which attached the valve body 11 to the position where the circumference step surface 104c of the large diameter part 104b of the long cylinder body 104 abuts on the circumference step surface 132 of the socket 13 is inserted. The first valve FB is configured by inserting the male threaded portion 104 a of the body 104 into the socket 13 and screwing the male threaded portion 104 a to the female threaded portion 131 of the socket 13. In this state, the compression coil spring 14 is accommodated in an elastically deformed state between the closing surface of the socket 13 and the rear end of the shaft 12, and the valve body 11 as described above by this spring 14. Is seated on the valve seat 103.

  In the illustrated example, a mounting plate Cb including a disk-shaped portion Cc and a sleeve portion Ce having a cylindrical end communicated with a through-hole Cd formed at the center of the disk-shaped portion Cc, and a disk of the mounting plate Cb. The first valve FB is assembled to the fluid supply body C by a cylindrical seat Cg that closes one end of the cylinder by the shaped part Cc. That is, when the first valve FB is inserted into the sleeve portion Ce of the mounting plate Cb so that the tubular portion 10 protrudes forward from the through hole Cd of the disc-shaped portion Cc of the mounting plate Cb. A window hole Cf is formed in which the engaging claws 135 formed on the outer peripheral portion of the socket 13 are elastically engaged. Then, after engaging the engaging claw 135 with the window hole Cf and combining the mounting plate Cb and the first valve FB, the mounting plate Cb is attached to the cylindrical seat Cg so that the socket 13 is accommodated in the cylindrical seat Cg. By attaching, the fluid supply body C is provided with the first valve FB via the cylindrical seat Cg. A through hole Ch through which the transfer pipe Ca is passed is formed in a side portion of the cylindrical seat Cg.

  In the illustrated example, the plug body 20 constituting the second valve SB is configured by forming rubber or plastic having rubber-like elasticity into a columnar shape. A recess 204 is formed substantially at the center of the outer end 203 of the plug body 20 (the side end of the plug body 20 not facing the second flow path S). The seal passage 201 is provided between the recess 204 and the substantial center of the inner end 202 of the plug body 20. Further, a circumferential flange 205 is formed on the outer end 203 side of the plug body 20.

  The second valve SB includes a cylindrical valve box 22 having one end opened and the other end closed by a bottom plate 221. A through hole 222 is formed substantially at the center of the bottom plate 221 of the cylindrical valve box 22, and the auxiliary chamber 23 communicates with the cylindrical valve box 22 through the through hole 222. A connecting pipe portion 231 is connected to the side portion of the auxiliary chamber 23, and the fluid is sent to a mechanism for consuming the fluid in the fluid receiving body P by the transfer pipe Pa connected to the connecting pipe 231. Yes. One end of the cylindrical valve box 22 has a large inner diameter, and a circumferential step surface 223 is formed on one end of the cylinder. Further, a rod-like body 232 protruding from the bottom of the auxiliary chamber 23 toward the communication side with the cylindrical valve box 22 is housed in the auxiliary chamber 23, and this rod-like body 232 functions as the valve opening operation body 21. It is supposed to be.

  In the example shown in the figure, liquid is introduced into the cylindrical valve box 22 from the one end side of the cylindrical valve box 22 up to a position where the rotating flange 205 of the plug body 20 abuts the rotating step surface 223 of the cylindrical valve box 22. The second valve SB is configured by closely fitting the plug body 20. A space is formed between the inner end 202 of the stopper 20 and the bottom plate 221 of the cylindrical valve box 22. When the fluid supply body C is loaded, the tubular portion 10 constituting the first valve FB protrudes from the inner end 202 of the plug body 20 and enters the auxiliary chamber 23, and the rod-shaped body 232 accommodated in the auxiliary chamber 23 is piped. The terminal 101 enters the inside.

  In the illustrated example, a guide member 24 including an introduction hole 241 of the tubular portion 10 is provided at the tip of the outer end 203 of the plug body 20. The guide member 24 includes an inner cylinder 242 and an outer cylinder 243, and the inside of the inner cylinder 242 serves as an introduction hole 241. Further, the outer cylinder 243 has an engaging projection 244 on the outer peripheral portion. After the stopper 20 is fitted into the cylindrical valve box 22 as described above, the guide member 24 is fitted into the cylindrical valve box 22 so that the cylindrical valve box 22 The engaging projection 244 is elastically engaged with a window hole 224 formed on one end side of the cylinder so that the cylindrical valve box 22 and the guide member 24 are combined. Then, the recess 204 of the plug 20 is positioned immediately below the introduction hole 241 of the guide member 24 combined in this way.

  Accordingly, in this example, when the fluid supply body C is loaded into the fluid receiving body P, the tubular portion 10 is guided to a position where the tubular section 10 enters the seal passage 201 of the plug body 20 through the introduction hole 241 of the guide member 24. Can be made.

  In the illustrated example, the fluid receiving body P is connected to the fluid receiving body P by a mounting plate Pb including a disk-shaped portion Pc and a sleeve portion Pe having a cylindrical end communicated with a through hole Pd formed at the center of the disk-shaped portion Pc. The two-valve SB is assembled. In other words, the sleeve portion Pe of the mounting plate Pb is a window in which the engaging claws 225 formed on the outer peripheral portion of the cylindrical valve box 22 are elastically engaged when the second valve SB is inserted into the sleeve portion Pe. A hole Pf is formed. Then, by engaging the engaging claw 225 with the window hole Pf and combining the attachment plate Cb and the second valve SB, the fluid receiving body P is provided with the second valve SB via the attachment plate Cb. Yes.

  In the illustrated example, a plurality of circumferential ridges 206 are formed at intervals between the circumferential ridges 206 adjacent to the outer surface portion between the circumferential flange 205 and the inner end 202 of the plug body 20. The stopper 20 is pressed against the inner surface of the cylindrical valve box 22 by the circumferential protrusion 206. Thus, (1) when the tubular portion 10 of the first valve FB is inserted into the seal passage 201, the tubular portion 10 and the tubular valve are disposed between the circumferential flange 205 and the inner end 202 of the plug body 20. When the tubular portion 10 is extracted from the seal passage 201, the seal passage 201 is reliably closed by the elastic return of the plug body 20. (2) When the tubular portion 10 of the first valve FB is inserted into the seal passage 201, the elastic swelling of the plug body 20 is absorbed in the gap between the circumferential protrusions 206, and the resistance of this insertion Can be reduced. Further, (3) when assembling the plug body 20 into the cylindrical valve box 22, the outer peripheral surface of the plug body 20 is not widely brought into contact with the inner surface of the cylindrical valve box 22. Therefore, the insertion is smoothly performed. It can be carried out.

(Second configuration example)
7 to 10 show another example of a specific configuration example of the fluid supply system. Here, FIG. 7 shows a state where the fluid receiving body P constituting the fluid supply system is loaded with the fluid supply body C, and FIG. 8 shows a state where the fluid supply body C is separated from each other. 9 and 10 show examples in which a part of the configuration of the second valve SB constituting the fluid supply system is changed.

  The second valve SB of the fluid supply system closes the tubular portion 40 having the inside of the tube as a part of the second flow path S and the tube base portion 402 of the tubular portion 40 in a liquid-tight manner, and the tubular portion 40 side has a high pressure. And a valve body 41 that is elastically deformed and opened.

  Further, the first valve FB includes a plug body 30 having a seal passage 301 which is liquid-tightly closed when the fluid supply body C is not loaded and which is elastically expanded by insertion of the tubular portion 40. Yes.

  When the fluid supply body C is not loaded, the first flow path F is closed by the first valve FB, and the second flow path S is closed by the second valve SB.

  When the fluid supply body C is loaded, the pipe end 401 of the tubular portion 40 enters the first flow path F closed by the plug body 30 while expanding the seal passage 301 of the plug body 30, and the first valve FB is opened. It will be in the state. In this state, the fluid enters the tubular portion 40, the pressure on the tubular portion 40 side becomes high, the valve body 41 is elastically deformed, and the second valve SB is also opened. Thereby, the first flow path F and the second flow path S are communicated, and the fluid stored in the fluid supply body C is supplied and supplied to the fluid receiving body P side.

  When the operation of removing the fluid supply body C loaded in the fluid receiving body P from the fluid receiving body P is started in this way, the pipe terminal 401 side is moved from the inner end 302 of the plug body 30 closing the first flow path F. The tubular portion 40 is moved to a position where it does not protrude, and the seal passage 301 is sequentially liquid-tightly closed from the inner end 302 side by the elastic return of the plug body 30, and when the seal passage 301 is closed, the inside of the tubular portion 40 is closed. Therefore, the pressure on the tubular portion 40 side is lowered, the valve body 41 is elastically restored, and the second valve SB is also closed. Thereby, when the fluid supply body C is completely removed from the fluid receiving body P, the fluid does not leak as much as possible from the tube terminal 401 side of the tubular portion 40, and the fluid does not leak from the outer end 303 side of the plug body 30. It is possible to prevent leakage.

  In the illustrated example, the tubular portion 40 constituting the second valve SB has a tubular end 401, that is, a sheath shape in which the upper end is closed and the tube base 402, that is, the lower end is opened. It is configured. At the same time, a through hole 403 is formed in the side portion of the tubular portion 40 on the tube end 401 side. The fluid is sent from the first flow path F side through the through hole 403.

  Accordingly, in the illustrated example, when the operation of removing the fluid supply body C loaded in the fluid receiving body P from the fluid receiving body P is started, the through hole 403 is immediately closed by the passage surface of the seal passage 301. The second valve SB can be quickly closed.

  In the illustrated example, the lower end of the tubular portion 40 is connected to a sleeve body 42 having a female screw portion 421 on the inner periphery.

  Further, the valve body 41 constituting the second valve SB is made of rubber or plastic having rubber-like elasticity, and is configured to have an axial shape having a circumferential flange 411 at the upper end. A conical recess 412 is formed at a substantially central portion of the flange. The valve body 41 has a seal passage 413 between the bottom and the lower end of the concave portion 412 and a seal passage 413 serving as a passage through which fluid flows due to elastic deformation of the valve body 41 when the tubular portion 40 side becomes high pressure. I have.

  The second valve SB has a male screw part 431 on the upper end side of the pipe, a flange 432 below the male screw part 431, and further bent to the side at the lower end of the pipe to a transfer pipe (not shown). The elbow body 43 is used as the connection portion 433.

  In this example, the valve body 41 is inserted into the elbow body 43 so that the circumferential flange 411 of the valve body 41 is hooked on the upper end of the pipe of the elbow body 43, and then from the lower end side of the sleeve body 42. By screwing the elbow body 43 to the sleeve body 42, the circumferential flange 411 of the valve body 41 is liquid-tightly sandwiched between the upper end of the elbow body 43 and the surface around the opening of the tube base portion 402 of the tubular portion 40. The second valve SB is configured. In this example, the fluid receiving body P is provided with the second valve SB via a mounting seat indicated by a symbol Pg in the drawing.

  In the illustrated example, the plug body 30 constituting the first valve FB is formed by forming rubber or plastic having rubber-like elasticity into a columnar shape. A recess 304 is formed at the approximate center of the outer end 303 of the plug 30 (the side end of the plug 30 that does not face the first flow path F). The seal passage 301 is provided between the recess 304 and the approximate center of the inner end 302 of the plug 30. A circumferential flange 305 is formed on the outer end 303 side of the plug body 30.

  In addition, the first valve FB includes a cylindrical portion 31 having the inside as a first flow path F. The tubular portion 31 has a circumferential step surface 311 facing downward on the lower end side.

  In the illustrated example, the plug body 30 is liquid-tightly fitted into the cylindrical section 31 from below to the position where the circumferential flange 305 of the plug body 30 is abutted against the circumferential step surface 311 of the cylindrical section 31. A single valve FB is configured.

  In the illustrated example, a guide member 32 including an introduction hole 321 of the tubular portion 40 is provided at the tip of the outer end 303 of the plug body 30. The guide member 32 has a hooking protrusion 322 on the outer peripheral portion. After the plug body 30 is fitted into the tubular portion 31 as described above, the guide member 32 is fitted into the tubular lower end side of the tubular portion 31. The hooking protrusion 322 is elastically hooked into the window hole 312 formed in the above-described manner, and is combined with the cylindrical portion 31. Then, the recess 304 of the plug 30 is positioned immediately above the introduction hole 321 of the guide member 32 combined in this way.

  Accordingly, in this example, when the fluid supply body C is loaded into the fluid receiving body P, the tubular portion 40 is guided to a position where the tubular section 40 enters the seal passage 301 of the plug body 30 through the introduction hole 321 of the guide member 32. Can be made.

  Further, in the illustrated example, two circumferential protrusions 306 are formed on the outer surface portion of the plug body 30 between the circular flange 305 and the inner end 302 so as to be vertically spaced, and the plug body 30 has a cylindrical shape. The circumferential protrusion 306 is pressed against the inner surface of the portion 31. Accordingly, (1) when the tubular portion 40 of the second valve SB is inserted into the seal passage 301, the tubular portion 40 and the tubular portion are arranged between the circumferential flange 305 and the inner end 302 of the plug body 30. When the tubular portion 40 is extracted from the seal passage 301, the seal passage 301 is reliably closed by the elastic return of the plug body 30. (2) When the tubular portion 40 of the second valve SB is inserted into the seal passage 301, the elastic bulge of the plug 30 is absorbed in the gap between the circumferential protrusions 306, and the resistance of this insertion Can be reduced. Further, (3) when assembling the plug body 30 into the cylindrical portion 31, the outer peripheral surface of the plug body 30 is not brought into wide contact with the inner surface of the cylindrical portion 31, so this insertion is performed smoothly. Can do.

  As shown in FIG. 9, if a nested body 44 having a liquid storage function is stored in the tubular portion 40, the fluid remains in the tubular portion 40 when the fluid supply body C is removed from the fluid receiving body P. However, it is possible to prevent this from leaking out from the tube terminal 401 side, specifically from the through hole 403 as much as possible.

  As the nested body 44, a rod-shaped body made of a ceramic porous body whose outer diameter is smaller than the inner diameter of the tubular portion 40, a polyethylene porous sintered body, or the like can be used. The porous sintered body made of polyethylene is particularly suitable for being used as the nesting body 44 because it can be easily formed into a small diameter. Note that reference numeral 45 in the figure denotes a stopper plate for preventing the nest body from descending.

  FIG. 10 includes the valve body 41 of the second valve described above provided with an umbrella part 461 and a leg part 462 projecting integrally from the umbrella part 461 upward from the center part of the back surface of the umbrella part 461. The example comprised by the valve body 46 is shown. The valve body 46 is configured to allow fluid to pass from the upper end of the cylinder toward the lower end of the cylinder, and is supported in the second flow path S by a sleeve 47 in which an intermediate portion of the cylinder is partitioned by a partition plate 471. That is, in the illustrated example, the sleeve 47 is housed in a state in which the space between the inner surface of the elbow body 43 and the outer surface of the sleeve 47 is liquid-tightly sealed above the bent portion of the elbow body 43. The valve body 46 is made of rubber or plastic having rubber-like elasticity, and has a bulging portion 463 at the tip of the leg portion 462, and a through hole formed in the center of the partition plate 471 of the sleeve 47. By inserting the leg portion 462 while elastically deforming the bulging portion 463 from below, the entire periphery of the umbrella portion 461 is pressed against the lower surface of the partition plate 471 and is assembled to the partition plate 471. A liquid passage hole 472 is formed at a portion of the partition plate 471 that is covered with the umbrella portion 461 of the valve body 46.

  When the fluid supply body C is loaded, the pipe end 401 of the tubular portion 40 enters the first flow path F closed by the plug body 30 while expanding the seal passage 301 of the plug body 30, and the first valve FB is opened. It will be in the state. In this state, fluid enters the tubular portion 40, the pressure on the tubular portion 40 side becomes high, the umbrella portion 461 of the valve body 46 is elastically deformed, the peripheral edge thereof is peeled off from the partition plate 471, and the second valve SB is opened. It is like that. When the operation of removing the fluid supply body C loaded in the fluid receiving body P from the fluid receiving body P is started in this way, the pipe terminal 401 side is moved from the inner end 302 of the plug body 30 closing the first flow path F. The tubular portion 40 is moved to a position where it does not protrude, and the seal passage 301 is sequentially liquid-tightly closed from the inner end 302 side by the elastic return of the plug body 30, and when the seal passage 301 is closed, the inside of the tubular portion 40 is closed. Therefore, the pressure on the tubular portion 40 side is lowered, the umbrella portion 461 of the valve body 41 is elastically restored, and the second valve SB is also closed.

(Third configuration example)
11 to 14 show still another specific configuration example of the fluid supply system. 11 and 14 show the loaded state of the fluid supply body C in which both the first valve FB and the second valve SB are opened, FIG. 12 shows the unloaded state, and FIG. 13 shows the first valve. Although the pipe terminal 601 of the tubular portion 60 of the second valve SB is inserted into the recess 512f of the valve body 51 of the FB, the state in the middle of loading of the fluid supply body C in which the valve body 51 is not pushed in and is not separated, Each is shown.

  Either one of the first valve FB and the second valve SB of the fluid supply system has the inside of the pipe as a part of the first flow path F or the second flow path S to close the pipe terminal 601 and to the pipe terminal 601 side. It has the tubular part 60 provided with the through-hole 602 in the side part. In the illustrated example, such a tubular portion 60 is provided on the second valve SB.

  In addition, the other of the first valve FB and the second valve SB includes a housing 50 that has the inside as a part of the first flow path F or the second flow path S and a valve seat 502 that circulates the valve hole 501 inside. In the housing 50, a valve body 51 and a biasing means 52 that constantly biases the valve body 51 in a direction in which the valve body 51 is seated on the valve seat 502 are housed. In the illustrated example, a housing 50, a valve body 51, and an urging means 52 for the first valve FB are provided.

  The other of the first valve FB and the second valve SB, in the illustrated example, the first valve FB has a through-hole 531 through which the tubular portion 60 is elastically expanded, and the through-hole 531 is connected to the valve. The housing 50 has a seal body 53 combined from the outside so as to communicate with the hole 501.

  In this fluid supply system, in the process of loading the fluid supply body C into the fluid receiving body P, the side portion positioned closer to the base portion 603 side of the tubular portion 60 than the through hole 602 of the tubular portion 60 is sealed. After being sealed by the body 53, the pipe end 601 of the tubular portion 60 presses and separates the valve body 51 against the bias.

  When the fluid supply body C is not loaded, the first flow path F is closed by the first valve FB, and the second flow path S is closed by the second valve SB.

  When the fluid supply body C is loaded, the tubular portion 60 enters the valve hole 501 of the housing 50 from the outside while elastically expanding the through hole 531 of the seal body 53. Thereby, first, the side part located in the base part 603 side of the tubular part 60 rather than the through-hole 602 of the tubular part 60 is sealed by the sealing body 53. Next, when the fluid supply body C is completely loaded, the pipe end 601 of the tubular portion 60 presses and separates the valve body 51 seated on the valve seat 502 of the housing 50 by the biasing means 52. As a result, it is possible to create a state in which the first flow path F and the second flow path S communicate with each other and the fluid stored in the fluid supply body C flows into the fluid receiving body P side.

  When the operation of removing the fluid supply body C loaded in the fluid receiving body P in this way from the fluid receiving body P is started, the tubular portion 60 is moved in a direction to come out from the valve hole 501 of the housing 50, and the valve body 51 is moved to the housing 50. The flow path on the housing 50 side (first flow path F in the illustrated example) is closed. Until the flow path on the housing 50 side is closed, the side portion positioned on the base side of the tubular portion 60 with respect to the through hole 602 of the tubular portion 60 is continuously sealed by the seal body 53. Thereby, in the process of removing the fluid supply body C from the fluid receiving body P, the leakage of the fluid from the flow path on the housing 50 side can be reliably prevented.

  In this example, a nested body 64 having a liquid storage function is housed in the tubular portion 60. As the nested body 64, a rod-like body such as a ceramic porous body or a polyethylene porous sintered body can be used as in the second configuration example. Thereby, when the fluid supply body C is completely removed from the fluid receiving body P, the fluid can be prevented from leaking out from the through hole 602 of the tubular portion 60 as much as possible.

  In particular, in this example, one end of the rod-like nested body 64 is positioned at a position where the end of the through hole 602 of the tubular portion 60 enters the tube end 601 side with respect to the hole edge 602a on the tube end 601 side. For this reason, the leakage of fluid from the through hole 602 can be prevented more reliably.

  In the illustrated example, the first valve FB includes the housing 50, a plug-like body 54, and a seal body 53. A valve body 51 and urging means 52 are built in the housing 50.

  The housing 50 is configured to have a cylindrical shape with the upper end of the cylinder being opened and generally closed by a bottom plate 503 provided with a valve hole 501 penetrating in the center at the lower end of the cylinder. A flange 504 projecting outward is provided at the upper end of the cylinder of the housing 50. In this example, the disk-shaped portion Cc and a sleeve portion Ce having one end communicating with a through hole Cd formed in the center of the disk-shaped portion Cc are attached to the fluid supply body C with the disk-shaped portion Cc. The first valve FB is assembled to the fluid supply body C through the attached mounting plate Cb. That is, when the housing 50 is inserted into the sleeve portion Ce from the lower end side of the cylinder until the flange 504 of the housing 50 abuts against the sleeve portion Ce of the mounting plate Cb. A window hole Cf is formed in which the engaging claw 505 formed on the upper end side of the cylinder is elastically engaged. Further, in this example, a fitting gap 506 is formed between the outer peripheral surface of the housing 50 thus combined and the inner peripheral surface of the sleeve portion Ce of the mounting plate Cb so as to form a circular shape with an open bottom surface. It has become.

  The plug-like body 54 has a cylindrical shape having an outer diameter substantially equal to the inner diameter of the housing 50, closes the upper end of the cylinder, and opens the lower end of the cylinder. A connecting pipe portion 541 forming a part of the first flow path F is integrally provided at the upper end of the cylinder. In the illustrated example, on the outside of the plug-like body 54, when the plug-like body 54 is inserted into the housing 50 from the upper end of the cylinder of the housing 50 to the lower end of the cylinder of the plug-like body 54, the housing 50. A hooking claw 542 that is elastically engaged with the window hole 507 formed in the window 50 is formed. The body 54 is assembled. A seal ring 543 is fitted into a circumferential groove formed on the outer surface of the plug-like body 54 on the bottom end side of the plug-like body 54. The seal ring 543 allows the housing 50 to be located below the window hole 507 of the housing 50. The space between the outer surface of 50 and the inner surface of the plug-like body 54 is sealed in a liquid-tight manner. Further, inside the plug-like body 54, there is provided an inner cylinder portion 544 that protrudes downward by integrally connecting the upper end of the cylinder to the approximate center inside the upper end of the plug-like body 54.

  The valve body 51 includes a shaft portion 511 and a head portion 512 provided at the lower end of the shaft portion 511. In the illustrated example, the valve body 51 moves up and down while the shaft portion 511 is inserted into the inner cylinder portion 544 of the plug-like body 54 from below and is guided by the inner surface of the inner cylinder portion 544. In this example, the urging means 52 is constituted by a compression coil spring. Such a spring is arranged so as to be wound around the outer side of the inner cylindrical portion 544 of the plug-like body 54, the upper end of the spring is pressed into the upper end of the plug-like body 54, and the lower end of the spring is the valve body. The head 51 is pressed against the upper surface of the head 512. The head 512 of the valve body 51 is seated by the spring on the valve seat 502, that is, the circumferential surface around the valve hole 501 in the bottom plate 503 of the housing 50, and the first valve FB is closed in this seated state. ing.

  In the illustrated example, the head portion 512 of the valve body 51 includes a main portion 512a integrally formed with the shaft portion 511, and a rubber or rubber that is fitted into a fitting recess 512b formed substantially at the lower center of the main portion 512a. And a valve terminal portion 512c made of plastic having a shape elasticity. The valve terminal portion 512c has a cylindrical upper portion 512d whose upper end is closed and whose lower end is opened, and an outer circumferential flange 512e around the lower end of the cylindrical upper portion 512d. The cylindrical upper part 512d is fitted into the fitting recess 512b of the main part 512a up to a position where the upper surface of the flange 512e is abutted with the main part 512a. The lower surface of the circumferential flange 512e of the valve terminal portion 512c is seated on the valve seat 502. In this seated state, the space in the cylindrical upper portion 512 d of the valve terminal portion 512 c is communicated with the valve hole 501 of the housing 50.

  In the process of loading the fluid supply body C into the fluid receiving body P, the pipe terminal 601 of the tubular portion 60 is located above the through hole 602 at a location positioned above the through hole 602 through the valve hole 501 of the housing 50. The valve body 51 is pressed and separated as described above in a state where the pipe end 601 is inserted into the cylindrical upper part 512d of 512c from the lower side and then the pipe terminal 601 is inserted into the cylindrical upper part 512d as described above.

  In other words, in this example, the cylindrical upper portion 512d of the valve terminal portion 512c forms a concave portion 512f that enters the valve body 51 on the tube terminal 601 side of the tubular portion 60. Thereby, the dimension of the connection direction at the time of connection of the 1st valve FB and the 2nd valve SB is made as small as possible.

  The seal body 53 is made of rubber or plastic having rubber-like elasticity. The seal body 53 has a through hole 531 in the center in a penetrating state, and has a circumferential groove 532 around the through hole 531 at the top. A circular lip 533 is formed between the circular groove 532 and the through hole 531 by the circular groove 532. The inner wall of the circumferential lip 533 is inclined so as to narrow the inner diameter of the through hole 531 as it goes upward, and the inner diameter of the through hole 531 is slightly smaller than the outer diameter of the tubular portion 60 at the upper part. Yes.

  On the other hand, an inner peripheral wall 508 surrounding the valve hole 501 and an outer peripheral wall 509 surrounding the inner peripheral wall 508 are formed in the lower part of the bottom plate 503 of the housing 50. In this example, the inner circumferential wall 508 that fits around the circumferential groove 532 of the seal body 53 is accommodated, and the circumferential groove 532 and the seal body 53 of the seal body 53 are between the inner circumferential wall 508 and the outer circumferential wall 509. The seal body 53 is assembled to the housing 50 by fitting the cap 55 having a through hole communicating with the through hole 531 of the seal body 53 to the outer peripheral wall 509 in a state where the space between the seal body 53 and the outer edge is accommodated. Yes. A gap is formed between the inner surface of the inner circumferential wall 508 of the housing 50 and the outer surface of the circumferential lip 533 of the seal body 53, and is circulated by the tubular portion 60 in the process of loading the fluid supply body C into the fluid receiving body P. The lip 533 is elastically expanded. In the illustrated example, a circumferential convex portion (not shown) is pressed against the inner peripheral surface of the outer peripheral wall 509 of the housing 50 on the outer peripheral surface of the seal body 53 in an elastically deformed state. A space between the outer peripheral wall 509 and the inner surface of the outer peripheral wall 50 is also liquid-tightly sealed.

  On the other hand, in the illustrated example, the second valve SB includes the tubular portion 60, a base 61, a valve body 62, and a cap 63. The tubular portion 60 is supported on the base 61.

  The base 61 includes a small diameter upper portion 611 and a large diameter lower portion 612. Between the small-diameter upper portion 611 and the large-diameter lower portion 612, a circumferential step surface 613 facing upward is formed. In this example, the disk-shaped portion Pc and a sleeve portion Pe having a cylindrical end communicating with a through hole Pd formed at the center of the disk-shaped portion Pc are attached to the fluid supply body C with the disk-shaped portion Pc. The second valve SB is assembled to the fluid receiving body P through the attached mounting plate Pb. That is, a female screw portion (not shown) is formed on the sleeve portion Pe of the mounting plate Pb, and a male screw portion (not shown) is formed on the outer peripheral surface of the large-diameter lower portion 612 of the base 61. The small-diameter upper portion 611 of the base 61 can be screwed into the sleeve portion Pe from below until the position where the circumferential step surface 613 of the base 61 abuts the lower end of Pe. The thin upper portion 611 of the base 61 protrudes upward from the upper surface of the mounting plate Pb.

  The small-diameter upper portion 611 of the base 61 is configured to have a cylindrical shape with an open upper end. The inner diameter is substantially equal to the outer diameter of the housing 50, and the outer diameter is substantially equal to the inner diameter of the through hole Cd of the mounting plate Cb on the first valve FB side.

  The large-diameter lower portion 612 of the base 61 is configured to have a cylindrical shape with the lower end opened. In the large-diameter lower portion 612, a cylindrical core body 65 having a liquid passage hole 651 at the upper end portion of the cylinder and a valve hole 652 at the lower end of the cylinder is housed. A hooking convex portion 653 projecting inward is formed in the core body 65 at a position approximately in the middle in the vertical direction. In the illustrated example, the valve body 62 is made of rubber or plastic having rubber-like elasticity, and includes an umbrella-shaped head 622 formed at the lower end of the leg 621 so that the leg 621 side is the inside of the umbrella. As long as the first flow path F and the second flow path S are not communicated with each other through the inside of the tubular portion 60 by the umbrella-shaped head portion 622, the second valve SB is kept closed. That is, in this example, a circumferential groove 621a is formed at a position approximately halfway in the vertical direction of the leg portion 621 of the valve body 62, and the leg portion 621 is inserted from the bottom end of the cylinder of the core body 65 so that the circumferential groove 621a is By engaging with the engaging projection 653, the peripheral surface of the core body 65 around the valve hole 652 is used as a valve seat 652a so that the edge of the umbrella-shaped head 622 is pressed against the valve seat 652a from below. It has become.

  In this example, the tubular portion 60 is supported by a through hole 614 extending from the center of the bottom portion of the small-diameter upper portion 611 of the base 61 to the center of the top portion of the large-diameter lower portion 612. The tubular portion 60 sharpens the tube end 601 in a conical shape, has through holes 602 on both diametrical sides below the conical portion, and the lower end side of the tube is inserted into the through hole 614 so that the tube The upper end side protrudes upward from the bottom of the narrow upper portion 611. The lower end of the tube of the tubular portion 60 is opened, and a rod-like nested body 64 is housed inside. The lower end of the insert body 64 is supported by the upper end of the cylinder body 65.

  The cap 63 is configured to have a cylindrical shape with an upper surface open and a connecting pipe portion 631 that is a part of the second flow path S at the bottom. In this example, a circumferential groove 615 is formed on the outer peripheral portion of the large-diameter lower portion 612 of the base 61, and when the large-diameter lower portion 612 is placed in the cap 63 from below in the cap 63, the circumferential groove 615 is elastic. Engagement projections 632 to be engaged are formed, and the lower end of the large-diameter lower portion 612 of the base 61 is closed by this engagement. In this example, a seal ring 654 for sealing the outer surface of the core body 65 and the inner surface of the large-diameter lower portion 612 is fitted to the outer periphery of the core body 65 on the cylinder lower end side. A seal ring 616 for sealing the outer surface of the large-diameter lower portion 612 and the inner surface of the cap 63 is fitted to the outer periphery of the lower end of the lower portion 612.

  The fluid supply body C is loaded into the fluid receiving body P so that the small-diameter upper portion 611 of the base 61 of the second valve SB enters the fitting gap 506 on the first valve FB side from below. As a result, the tubular portion 60 provided so as to protrude from the bottom at the center of the small-diameter upper portion 611 is centered, enters the valve hole 501 through the through hole 531 of the seal body 53 of the first valve FB, and enters the valve body 51. bump into. (FIG. 13) At this time, the tubular portion 60 allows only the portion above the through hole 602 to enter the recess 512f of the valve body 51. When the above loading is completed from the state of FIG. 13, the valve body 51 of the first valve FB is pushed upward by the tubular portion 60 and the first valve FB is opened, and the first flow path F in the housing 50 and the tubular portion 60 are opened. The second flow path S is communicated. (FIG. 14) When this happens, fluid enters the tubular part 60 from the connecting pipe part 541 of the plug-like body 54 of the first valve FB through the housing 50, and further, the core body 65 passes through the liquid passage hole 651 of the core body 65. Since the fluid enters the inside, the umbrella-shaped head portion 622 of the valve body 62 of the second valve SB moves its edge downward and the second valve SB is also opened.

The principal part perspective block diagram of the fluid supply system concerning a 1st structural example. The same part separation perspective configuration diagram Separation perspective view of the first valve FB body Primary valve fracture separation perspective configuration diagram of the first valve FB body Separation perspective view of the second valve SB body Main part fracture separation perspective view of the second valve SB body Cross-sectional configuration diagram of the main part of the fluid supply system according to the second configuration example Cross-sectional configuration diagram of the main part Cross-sectional view of the main part showing a modified example of the second valve SB body Cross-sectional configuration diagram of the main part showing still another modification of the second valve SB body Cross-sectional perspective configuration diagram of main parts of a fluid supply system according to a third configuration example Cross-sectional configuration diagram of the main part Cross-sectional configuration diagram of the main part Cross-sectional configuration diagram of the main part

Explanation of symbols

C Fluid supply body P Fluid receiving body F 1st flow path S 2nd flow path FB 1st valve SB 2nd valve 10 Tubular part 101 Pipe end 102 Pipe base 103 Valve seat 11 Valve body 20 Plug body 201 Sealing path 202 Inner end 21 Opening body

Claims (12)

A fluid supply body having a first flow path and a first valve for opening and closing the first flow path;
A fluid receiving body having a second flow path and a second valve for opening and closing the second flow path;
A fluid supply system that opens a first valve and a second valve to allow communication between a first flow path and a second flow path by loading a fluid supply body into a fluid receiving body,
Either one of the first valve and the second valve includes a tubular portion provided with a valve seat facing the tube base side at the tube end, and a valve body that is seated on the valve seat by a bullet from the tube base side. And
The other of the first valve and the second valve includes a plug body that is liquid-tightly closed when the fluid supply body is not loaded and has a seal passage that is elastically expanded by insertion of the tubular portion. And
A valve-opening operation body that enters the tube end of the tubular portion protruding from the inner end of the plug body through the seal passage and presses and separates the valve body behind the inner end of the plug body in a loaded state of the fluid supply body. A fluid supply system comprising:   The fluid supply system according to claim 1, further comprising a guide member provided with an introduction hole of a tubular portion at the tip of the outer end of the stopper. A fluid supply body having a first flow path and a first valve for opening and closing the first flow path;
A fluid receiving body having a second flow path and a second valve for opening and closing the second flow path;
A fluid supply system that opens a first valve and a second valve to allow communication between a first flow path and a second flow path by loading a fluid supply body into a fluid receiving body,
The second valve closes the tube portion having the inside of the tube as a part of the second flow path and the tube base portion of the tubular portion in a liquid-tight manner, and is elastically deformed and opened when the pressure on the tubular portion side becomes high. Equipped with a disc,
The first valve is provided with a plug body having a seal passage that is liquid-tightly closed when the fluid supply body is not loaded and that is elastically expanded by insertion of the tubular portion. Fluid supply system.   The fluid supply system according to claim 3, wherein the tube end of the tubular portion is closed, and a through hole is formed in a side portion on the tube end side.   5. The fluid supply system according to claim 3, further comprising a guide member having an introduction hole of a tubular portion at the tip of the outer end of the plug.   The fluid supply system according to any one of claims 3 to 5, wherein a nested body having a liquid storage function is accommodated in the tubular portion. A fluid supply body having a first flow path and a first valve for opening and closing the first flow path;
A fluid receiving body having a second flow path and a second valve for opening and closing the second flow path;
A fluid supply system that opens a first valve and a second valve to allow communication between a first flow path and a second flow path by loading a fluid supply body into a fluid receiving body,
Either one of the first valve and the second valve has a tubular portion in which the inside of the pipe is a part of the first flow path or the second flow path, closes the pipe end, and has a through hole in a side portion on the pipe end side. Have
The other of the first valve and the second valve includes a housing having the inside as a part of the first flow path or the second flow path and a valve seat that circulates the valve hole. The urging means for always urging the valve body in the direction of seating on the valve seat is stored,
Further, the other of the first valve and the second valve has a through hole through which the tubular portion is elastically expanded, and a seal combined with the housing from the outside so as to communicate with the valve hole. Has a body,
In the process of loading the fluid supply body into the fluid receiving body, the tube end of the tubular portion resists the bias after the side portion positioned on the base side of the tubular portion with respect to the through hole of the tubular portion is sealed by the seal body. Then, the fluid supply system is characterized in that the valve body is pressed and separated.   The fluid supply system according to claim 7, wherein a nested body having a liquid storage function is accommodated in the tubular portion.   The fluid supply system according to claim 8, wherein one end of the nested body is located at a position where the end of the insert body enters the tube end side rather than the hole edge on the tube end side in the through hole.   The fluid supply system according to any one of claims 7 to 10, wherein a concave portion is formed in the valve body so as to enter a tube end side of the tubular portion.   The fluid supply system according to any one of claims 1 to 10, wherein the fluid supply body is a fuel cartridge constituting a fuel cell of a portable electronic device.   The 1st valve assembled | attached to the fluid supply body of any one of Claims 1-11, and the 2nd valve assembled | attached to the fluid receiving body of any one of Claims 1-11. A fluid coupling consisting of

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