Connecting device

Abstract

A connecting device (10) is provided with a first joined body (16A) and a second joined body (16B). The first joined body (16A) extends in the insertion / extraction direction (DA) and has an extension section (22) that is inserted into an insertion hole (30IH) formed in the second joined body (16B). The outer peripheral surface of the extension section (22) has a first step section (22X) and a second step section (22Y). The second step section (22Y) is located further inward than the first step section (22X) between the first step section (22X) and the base end of the extension section (22), and engages with the second joining body (16B). The first step section (22X) engages with the second joining body (16B) after the engagement of the second step section (22Y) is released.

Description

Technical Field

[0001] This invention relates to a connecting device for connecting flow paths. Background Technology

[0002] For example, Japanese Patent Application Publication No. 02-113195 discloses a multi-connector having a multi-connector integrally formed with a fluid-connecting pipe.

[0003] In the case of a connected flow path, it is assumed that the connection is disconnected by the pressure of the fluid flowing through that flow path. Therefore, it is desirable to take measures to safely disconnect the connection. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned technical problems.

[0005] A first aspect of the present invention is a connecting device for connecting flow paths, comprising: a male connector component having a plurality of convex flow path ends; a female connector component having concave flow path ends configured to engage one-to-one with the plurality of convex flow path ends; a first engaging body disposed on one of the male connector component and the female connector component; and a second engaging body disposed on the other of the male connector component and the female connector component, wherein a through hole is formed in the second engaging body extending along an insertion / removal direction, the insertion / removal direction being the direction in which the convex flow path ends and the concave flow path ends are inserted; the first engaging body comprising: an insertion member, wherein, in an engaged state where the convex flow path ends and the concave flow path ends are engaged, the tip portion of the insertion member is inserted into the through hole; a base component; and a cylindrical portion. The device comprises: a cylindrical component disposed on the base component and extending in a pull-out direction opposite to the insertion direction of the insertion component into the through hole; the cylindrical component covering the outer periphery of the base end of the insertion component and supporting the insertion component; a first force-applying component applying force to the insertion component relative to the cylindrical component in the pull-out direction; a first locking component disposed on the insertion component, which, in the engaged state, locks the first engagement body relative to the second engagement body in the pull-out direction by means of the through hole and the first opening edge located in the insertion direction; and a limiting portion located in the insertion component relative to the first locking component in the pull-out direction, thereby limiting the movement of the first engagement body relative to the second engagement body in the pull-out direction; and a limiting portion located in the insertion component relative to the first locking component in the pull-out direction, thereby limiting the movement of the first engagement body relative to the second engagement body in the pull-out direction.

[0006] A second aspect of the present invention is a connecting device for connecting flow paths, comprising: a male connector component having a plurality of convex flow path ends; a female connector component having concave flow path ends configured to engage one-to-one with the plurality of convex flow path ends; a first engaging body disposed on one of the male connector component and the female connector component; and a second engaging body disposed on the other of the male connector component and the female connector component, the first engaging body having: a first base portion; and an extension portion extending from the first base portion along an insertion / removal direction and inserted into... The extension is inserted into the insertion hole formed in the second coupling body. The insertion and extraction direction is the direction of insertion and extraction of the convex flow path end and the concave flow path end. The outer peripheral surface of the extension has a first step portion and a second step portion. The second step portion is located inside the first step portion compared to the base end of the extension portion. In the engaged state where the convex flow path end and the concave flow path end are engaged, the second step portion engages with the second coupling body to prevent the extension portion inserted into the insertion hole from disengaging from the insertion hole. After the engagement of the second step portion is released, the first step portion engages with the second coupling body to prevent the extension portion from disengaging from the insertion hole.

[0007] According to the present invention, the connection can be safely terminated. Attached Figure Description

[0008] Figure 1 This is a schematic diagram illustrating the connection device in the non-connected state according to the first embodiment.

[0009] Figure 2 This is a schematic diagram illustrating the connection device in the first embodiment.

[0010] Figure 3 This is an exploded perspective view showing the second joint body according to the first embodiment.

[0011] Figure 4 This is a cross-sectional view showing the second joint body according to the first embodiment.

[0012] Figure 5 This is a cross-sectional view showing state 1 of the loading and unloading structure according to the first embodiment.

[0013] Figure 6 This is a cross-sectional view showing state 2 of the loading and unloading structure according to the first embodiment.

[0014] Figure 7 This is a cross-sectional view showing state 3 of the loading and unloading structure according to the first embodiment.

[0015] Figure 8 This is a cross-sectional view showing state 4 of the loading and unloading structure according to the first embodiment.

[0016] Figure 9 This is a cross-sectional view showing state 5 of the loading and unloading structure according to the first embodiment.

[0017] Figure 10 This is a schematic diagram illustrating the connection device in the non-connected state according to the second embodiment.

[0018] Figure 11 This is a schematic diagram illustrating the connection device involved in the second embodiment.

[0019] Figure 12 This is a cross-sectional view showing the first joint body according to the second embodiment.

[0020] Figure 13 This is a cross-sectional view showing the second joint body according to the second embodiment.

[0021] Figure 14 yes Figure 13 A three-dimensional image.

[0022] Figure 15 This is a front view of the insertion hole involved in the second embodiment, viewed from the pull-out direction.

[0023] Figure 16 This is a cross-sectional view showing state 1 of the loading and unloading structure according to the second embodiment.

[0024] Figure 17 This is a cross-sectional view showing state 2 of the loading and unloading structure according to the second embodiment.

[0025] Figure 18 This is a cross-sectional view showing state 3 of the loading and unloading structure according to the second embodiment.

[0026] Figure 19 This is a diagram showing state 4 of the loading and unloading structure according to the second embodiment.

[0027] Figure 20 This is a schematic diagram illustrating the connection device in the non-connected state according to the third embodiment.

[0028] Figure 21 This is a schematic diagram illustrating the connection device involved in the third embodiment.

[0029] Figure 22 This is an exploded perspective view showing the second joint body according to the third embodiment.

[0030] Figure 23 This is a cross-sectional view showing the loading and unloading structure according to the third embodiment.

[0031] Figure 24 This is a cross-sectional view showing state 1 of the loading and unloading structure according to the third embodiment.

[0032] Figure 25 This is a cross-sectional view showing state 2 of the loading and unloading structure according to the third embodiment.

[0033] Figure 26 This is a diagram showing state 3 of the loading and unloading structure according to the third embodiment.

[0034] Figure 27 This is a cross-sectional view showing state 4 of the loading and unloading structure according to the third embodiment.

[0035] Figure 28 This is a schematic diagram illustrating the connection device in the non-connected state according to the fourth embodiment.

[0036] Figure 29 This is a schematic diagram illustrating the connection device in the fourth embodiment.

[0037] Figure 30 This is a cross-sectional view of the first and second joints.

[0038] Figure 31 This is a cross-sectional view showing state 1 of the loading and unloading structure according to the fourth embodiment.

[0039] Figure 32 This is a cross-sectional view showing state 2 of the loading and unloading structure according to the fourth embodiment.

[0040] Figure 33 This is a cross-sectional view showing state 3 of the loading and unloading structure according to the fourth embodiment.

[0041] Figure 34 This is a cross-sectional view showing state 4 of the loading and unloading structure according to the fourth embodiment. Detailed Implementation

[0042] (First Implementation)

[0043] Figure 1 This is a schematic diagram showing the connection device 10 in the non-connected state according to the first embodiment. Figure 2 This is a schematic diagram illustrating the connection device 10 according to the first embodiment. The connection device 10 is a device for connecting flow paths. The connection device 10 includes a male connector component 12, a female connector component 14, and a mounting / unmounting structure 16.

[0044] The male connector component 12 is a male connector that can be attached and detached from the female connector component 14. The male connector component 12 is, for example, formed in a cuboid shape. The male connector component 12 has a plurality of convex flow path ends 12A and a plurality of tube connection portions 12B.

[0045] Multiple convex flow path ends 12A protrude from the first surface 12F1 of the male connector component 12. The first surface 12F1 is the surface facing the female connector component 14 during installation. The convex flow path ends 12A can also be output ends that output fluid to the female connector component 14, or input ends that input fluid supplied from the female connector component 14. The multiple convex flow path ends 12A can also be arranged in three or more rows spaced apart in one direction. Figure 1 This represents an example where two column groups are configured on the first face 12F1.

[0046] Multiple tube connectors 12B protrude from the second surface 12F2 of the male connector component 12. The second surface 12F2 is the surface of the male connector component 12 opposite to the first surface 12F1. The multiple tube connectors 12B are provided corresponding to multiple convex flow path ends 12A. The tube connectors 12B communicate with their corresponding convex flow path ends 12A. A tube (not shown) is mounted at one end of each tube connector 12B.

[0047] The female connector component 14 is a female connector that can be attached and detached from the male connector component 12. The female connector component 14 is, for example, formed in a cuboid shape. The female connector component 14 has a plurality of concave flow path ends 14A and a plurality of tube connection portions 14B.

[0048] Multiple concave flow path ends 14A are configured to engage one-to-one with multiple convex flow path ends 12A. Each concave flow path end 14A is a hole formed from the first surface 14F1 of the female connector component 14 towards the interior. The first surface 14F1 is the surface facing the male connector component 12 during installation. When the convex flow path ends 12A engage with the concave flow path ends 14A, the flow path of the concave flow path ends 14A communicates with the flow path of the convex flow path ends 12A. In this case, a sealing member (not shown) is provided at the concave flow path ends 14A to seal the gap between the concave flow path ends 14A and the engaged convex flow path ends 12A, thereby suppressing fluid leakage. The multiple concave flow path ends 14A can also be arranged in three or more rows spaced apart in one direction. Figure 1 This represents an example where two column groups are configured on the first face 14F1.

[0049] Multiple tube connectors 14B protrude from the second surface 14F2 of the female connector component 14. The second surface 14F2 is the side of the female connector component 14 opposite to the first surface 14F1. The multiple tube connectors 14B are provided corresponding to multiple concave flow path ends 14A. The tube connectors 14B communicate with their corresponding concave flow path ends 14A. A tube (not shown) is mounted at one end of each tube connector 14B.

[0050] The loading / unloading structure 16 is a part formed to be capable of loading and unloading. The loading / unloading structure 16 includes a first engaging body 16A and a second engaging body 16B. The first engaging body 16A is provided on one side of the male connector component 12 and the female connector component 14. The second engaging body 16B is provided on the other side of the male connector component 12 and the female connector component 14.

[0051] In this embodiment, the first connector 16A is disposed on the female connector component 14, and the second connector 16B is disposed on the male connector component 12. Alternatively, the first connector 16A may be disposed on the male connector component 12, and the second connector 16B may be disposed on the female connector component 14.

[0052] First couplings 16A are disposed at both ends of the female connector member 14 in the direction in which the convex flow path ends 12A constituting the row group are arranged. Similarly, second couplings 16B are disposed at both ends of the male connector member 12 in the direction in which the concave flow path ends 14A constituting the row group are arranged. In this embodiment, there are two first couplings 16A, but it is not limited to this; there may be three or more, or there may be one. The number of second couplings 16B is also the same.

[0053] The first connector 16A has a first base portion 20, an extension portion 22, and a base applying portion 24. The first base portion 20 is the base portion of the extension portion 22. The first base portion 20 may also be plate-shaped. In this embodiment, the first base portion 20 is integrally formed with the female connector component 14, but it may also be separate. Furthermore, when the first connector 16A is provided on the male connector component 12, the first base portion 20 is integrally formed with the male connector component 12. A recess 20A for arranging the base applying portion 24 is formed in the first base portion 20.

[0054] The extension 22 extends from the first base portion 20 along the insertion / removal direction DA. One side of the insertion / removal direction DA is the insertion direction DA1, in which the convex flow path end portion 12A is inserted into the concave flow path end portion 14A. The other side of the insertion / removal direction DA is the removal direction DA2, in which the convex flow path end portion 12A is pulled out from the concave flow path end portion 14A.

[0055] The extension 22 has a base end portion 22A, a first intermediate portion 22B, a second intermediate portion 22C, and a top end portion 22D. The base end portion 22A is fixed to the bottom surface of the recess 20A of the first base portion 20. The first intermediate portion 22B is disposed between the base end portion 22A and the second intermediate portion 22C, and is formed, for example, in a cylindrical shape. The second intermediate portion 22C is disposed between the first intermediate portion 22B and the top end portion 22D, and is formed, for example, in a cylindrical shape. The diameter of the second intermediate portion 22C is larger than the diameter of the first intermediate portion 22B. The top end portion 22D is formed, for example, in a hemispherical shape. The diameter of the top end portion 22D is larger than the diameter of the second intermediate portion 22C. An arc-shaped inclined surface 22SL is formed on the top end portion 22D. The inclined surface 22SL is inclined such that it gets closer to the axis of the extension 22 the closer it is to the top end of the extension 22. Furthermore, when the extension 22 is not cylindrical but a polygonal prism, the cross-sectional area of ​​the second intermediate portion 22C is larger than the cross-sectional area of ​​the first intermediate portion 22B. Additionally, the cross-sectional area of ​​the top portion 22D is larger than the cross-sectional area of ​​the second intermediate portion 22C.

[0056] The outer peripheral surface of the extension 22 has a first stepped portion 22X and a second stepped portion 22Y. The first stepped portion 22X is a step formed by a second intermediate portion 22C and a top portion 22D. The second stepped portion 22Y is a step formed by a first intermediate portion 22B and a second intermediate portion 22C. The second stepped portion 22Y is located between the first stepped portion 22X and the base end of the extension 22, and is located inside the first stepped portion 22X. Furthermore, the base end of the extension 22 is one end (fixed end) fixed to the base end portion 22A of the first base portion 20.

[0057] The base force-applying part 24 applies force to the second coupling body 16B in such a way that the first base part 20 disengages from the second coupling body 16B. The base force-applying part 24 may also be a helical spring. For example, the base force-applying part 24 may be composed of a coil part 24A and a coil seat part 24B.

[0058] The coil portion 24A and the coil seat portion 24B are inserted through the extension portion 22 and disposed between the first base portion 20 and the second engaging body 16B. The coil seat portion 24B is slidable relative to the extension portion 22. The coil portion 24A is extendable and retractable in the insertion / removal direction DA. One end of the coil portion 24A in the insertion / removal direction DA is fixed to the bottom surface of the recess 20A of the first base portion 20. The other end of the coil portion 24A in the insertion / removal direction DA is fixed to the coil seat portion 24B. When the extension portion 22 is inserted into the insertion hole 30IH, the coil seat portion 24B abuts against the first surface 12F1 of the male connector component 12.

[0059] In the non-engaged state where the convex flow path end 12A and the concave flow path end 14A are not engaged (refer to...) Figure 1In this state, the coil portion 24A is elongated. A portion of the coil portion 24A and the coil seat portion 24B protrude from the recess 20A of the first base portion 20. On the other hand, in the engaged state where the convex flow path end 12A and the concave flow path end 14A are engaged (see reference...). Figure 2 When the coil portion 24A is compressed, the entire base force-applying portion 24 is housed within the recess 20A of the first base portion 20.

[0060] The second mating body 16B is disposed on the second surface 12F2 of the male connector component 12. Figure 3 This is an exploded perspective view showing the second joint 16B according to the first embodiment. Figure 4 This is a cross-sectional view showing the second coupling body 16B according to the first embodiment. The second coupling body 16B has a second base portion 30, a stop portion 32, a stop force-applying portion 34, and an operating portion 36.

[0061] The second base portion 30 is the base portion of the second coupling body 16B. The second base portion 30 may also be plate-shaped. An insertion hole 30IH and a locking hole 30EH are formed in a cross manner on the second base portion 30. The insertion hole 30IH is a hole through which the extension portion 22 can be inserted, extending along the insertion / removal direction DA. The locking hole 30EH is a hole for engaging the stop portion 32 with the first step portion 22X and the second step portion 22Y in the extension portion 22, extending along the engagement / disengagement direction DB.

[0062] The engagement / disengagement direction DB is a direction intersecting the insertion / removal direction DA. Preferably, the engagement / disengagement direction DB is orthogonal to the insertion / removal direction DA. The engagement / disengagement direction DB may also be orthogonal to the direction in which the concave flow path ends 14A constituting the column group are arranged (see reference). Figure 1 Furthermore, one side of the engagement / disengagement direction DB is engagement direction DB1, and the other side of the engagement / disengagement direction DB is disengagement direction DB2.

[0063] The second base portion 30 can also be formed by joining the insertion cylinder portion 30A and the engaging cylinder portion 30B. The insertion cylinder portion 30A is inserted through a through hole H1 formed in the engaging cylinder portion 30B. The insertion hole 30IH is formed in the internal space S1 of the insertion cylinder portion 30A. A through hole H2 is formed in the insertion cylinder portion 30A. This through hole H2 communicates with the internal space S2 formed in the engaging cylinder portion 30B. An engaging hole 30EH is formed through the through hole H2 and the internal space S2. Furthermore, the end of the engaging cylinder portion 30B in the engaging / releasing direction DB2 is closed. The end of the engaging cylinder portion 30B in the engaging direction DB1 is open.

[0064] The stop portion 32 is the part that engages with the first step portion 22X and the second step portion 22Y. The stop portion 32 is disposed in the engagement hole 30EH. The stop portion 32 is supported on the second base portion 30 (engaging cylinder portion 30B) in such a way that it can slide within the engagement hole 30EH along the engagement direction DB1 or the engagement release direction DB2. The stop portion 32 has a stop body 32A and a locking portion 32B.

[0065] A notch 36NC extending in the engagement / disengagement direction DB is formed in the stop body 32A. A protrusion 30E protruding into the notch 36NC is provided in the second base portion 30 (engagement sleeve portion 30B). The protrusion 30E may also be a screw. The stop body 32A can slide in the disengagement direction DB2 until the protrusion 30E abuts against the end of the notch 36NC in the engagement direction DB1. On the other hand, the stop body 32A can slide in the engagement direction DB1 until the protrusion 30E abuts against the end of the notch 36NC in the disengagement direction DB2.

[0066] A through hole 32HL communicating with the insertion hole 30IH is formed in the stop body 32A. The through hole 32HL extends along the insertion / removal direction DA and is sized to allow the extension portion 22 to pass through. The through hole 32HL is located at the intersection of the insertion hole 30IH and the engagement hole 30EH. A locking portion 32B is disposed in the through hole 32HL. The locking portion 32B protrudes from the stop body 32A into the through hole 32HL.

[0067] The stop force-applying part 34 is the part that applies force to the stop part 32 (locking part 32B) towards the outer periphery of the extension part 22. The stop force-applying part 34 may also be a coil spring. The stop force-applying part 34 is disposed between the second base part 30 (the end of the locking cylinder part 30B in the locking-unlocking direction DB2) and the stop part 32. The stop force-applying part 34 applies force to the stop part 32 in the locking direction DB1.

[0068] The force applied by the stop force-applying part 34 to the stop part 32 in the engagement direction DB1 (pressing force). Therefore, when the extension part 22 is not inserted into the insertion hole 30IH, as Figure 4 As shown, the protrusion 30E abuts against the end of the notch 36NC in the engagement / disengagement direction DB2. In this case, the locking part 32B is located in the insertion hole 30IH.

[0069] The operating part 36 is the portion that releases the engagement of the stop part 32 by operating it in the direction opposite to the direction in which the force is applied by the stop force application part 34 (engagement direction DB1) (engagement release direction DB2). The operating part 36 is provided at the end of the stop body 32A in the direction in which the force is applied by the stop force application part 34 (engagement direction DB1). In this embodiment, the operating part 36 is integrally formed with the stop body 32A. The operating part 36 has a pressure-receiving surface 36F that is pressed by the user. When the pressure-receiving surface 36F is pressed by the operator, the stop body 32A slides in the engagement release direction DB2. Therefore, the locking part 32B slides in the engagement release direction DB2.

[0070] Next, the operation of the second coupling 16B when the extension 22 is inserted will be described. As the extension 22 is inserted from the convex flow path end 12A to the concave flow path end 14A, the extension 22 begins to move from the inlet 30IN of the insertion hole 30IH (… Figure 4 )insert.

[0071] When the extension 22 is inserted, then as Figure 5 As shown, the top end portion 22D of the extension 22 enters the through hole 32HL of the stop portion 32. Subsequently, the inclined surface 22SL of the top end portion 22D contacts the locking portion 32B of the stop portion 32.

[0072] As the extension 22 is further inserted, the stop body 32A slides in the engagement release direction DB2 via the inclined surface 22SL of the extension 22. As a result, the locking part 32B retracts from the insertion hole 30IH.

[0073] As the insertion of the extension 22 proceeds further and the locking part 32B moves away from the inclined surface 22SL, then as Figure 6 As shown, the stop portion 32 slides in the engaging direction DB1 under the force of the stop force application portion 34. Consequently, the locking portion 32B abuts against the outer peripheral surface of the second intermediate portion 22C of the extension portion 22. When the extension portion 22 is further inserted, as... Figure 7 As shown, the locking part 32B abuts against the outer peripheral surface of the first intermediate part 22B of the extension part 22.

[0074] When the insertion of the convex flow path end 12A into the concave flow path end 14A is completed, and the concave flow path end 14A and the convex flow path end 12A are engaged, the state in which the locking part 32B abuts against the outer peripheral surface of the first intermediate part 22B is maintained by the force of the stop force application part 34. In this state, even if a force is generated to pull out the extension 22, the locking part 32B engages with the second step part 22Y, thereby preventing the extension 22 from falling out of the insertion hole 30IH. Therefore, even if the pressure of the fluid flowing between the convex flow path end 12A and the concave flow path end 14A is high, the accidental disconnection of the male connector component 12 and the female connector component 14 can be avoided.

[0075] Next, the operation of the second engaging body 16B when the extension 22 is pulled out will be explained. With the second step portion 22Y engaged with the locking portion 32B, when the operator presses the pressure surface 36F of the operating portion 36, as follows... Figure 8 As shown, the stop body 32A slides in the engagement release direction DB2. Therefore, the locking part 32B moves in the engagement release direction DB2, and the engagement of the second step part 22Y is released. As a result, the locking part 32B abuts against the outer peripheral surface of the second intermediate part 22C. At this time, the force of the base force application part 24 comes into effect, and the extension part 22 is guided in the direction of being pulled out from the insertion hole 30IH. Therefore, even without user operation of pressing the extension part 22, it is possible to begin pulling the extension part 22 out of the insertion hole 30IH, which is user-friendly.

[0076] At the moment when the extension 22 is guided in the direction of being pulled out from the insertion hole 30IH, a relatively large force may sometimes be applied in that direction. One reason could be the pressure difference generated between the inside and outside of the flow path connecting the convex flow path end 12A and the concave flow path end 14A. In this case, such as... Figure 6 As shown, the locking part 32B engages with the first stepped part 22X. Therefore, the extension 22 will not disengage from the insertion hole 30IH. As a result, it is possible to avoid the situation where the connection between the male connector part 12 and the female connector part 14 is forcibly released.

[0077] When the operator applies pressure to the pressure surface 36F, then as follows: Figure 9 As shown, by sliding the stop body 32A in the engagement release direction DB2, the locking part 32B moves further in the engagement release direction DB2. Therefore, the engagement of the locking part 32B with the first step part 22X is released. In this case, the extension part 22 can be pulled out from the insertion hole 30IH. In this way, the connection and disconnection between the male connector part 12 and the female connector part 14 can be safely performed.

[0078] The first embodiment can also be modified. For example, the second coupling body 16B is not limited to the case where it is provided on the second surface 12F2 of the end of the male connector member 12. The second coupling body 16B can also be installed on the side surface 12F3 of the male connector member 12 in the direction in which the concave flow path ends 14A constituting the row group are arranged. Figure 1 In this case, with the convex flow path end 12A and the concave flow path end 14A engaged, the position of the first coupling body 16A relative to the female connector component 14 is changed so that the extension 22 can be inserted into the insertion hole 30IH.

[0079] There may be two or more extensions 22. In this case, one insertion hole 30IH may be a hole capable of inserting two or more extensions 22. There may also be multiple insertion holes 30IH corresponding to two or more extensions 22. Similarly, one stop 32 may engage with two or more extensions 22 respectively. There may also be multiple stop 32 corresponding to two or more extensions 22 respectively. The same applies to the stop force application part 34 and the operating part 36.

[0080] (Second Implementation)

[0081] Next, the loading and unloading structure 16 according to the second embodiment will be described. Furthermore, in the second embodiment, structural elements identical to those in the loading and unloading structure 16 described above are marked with the same reference numerals, and detailed descriptions thereof are omitted. Figure 10 This is a schematic diagram showing the connection device 10 in the non-connected state according to the second embodiment. Figure 11 This is a schematic diagram showing the connection device 10 in the second embodiment. Figure 12 This is a cross-sectional view showing the first joint 16A according to the second embodiment.

[0082] In the second embodiment, the first connector 16A is disposed on the male connector component 12, and the second connector 16B is disposed on the female connector component 14. Alternatively, the first connector 16A may be disposed on the female connector component 14, and the second connector 16B may be disposed on the male connector component 12.

[0083] In the second embodiment, the structure of the first coupling 16A differs from that in the first embodiment. The first coupling 16A in the second embodiment has a first base portion 20 and an extension portion 22. Furthermore, the first coupling 16A in the second embodiment has an extended force-applying portion 26 (see reference). Figure 12 ) Replaces the base force application part 24.

[0084] In the first base portion 20 of the second embodiment, a sliding hole 20SH is formed instead of a recess 20A. The sliding hole 20SH extends along the engagement / disengagement direction DB. The extension portion 22 of the second embodiment is supported on the first base portion 20 in a manner that allows it to slide in the engagement / disengagement direction DB.

[0085] The extension force-applying part 26 applies force to the extension part 22 in the engagement direction DB1. The extension force-applying part 26 may also be a helical spring. The extension force-applying part 26 is disposed in the sliding hole 20SH, located between the extension part 22 and the first base part 20. The end of the extension force-applying part 26 in the engagement direction DB1 is fixed to the side of the first intermediate part 22B of the extension part 22. The end of the extension force-applying part 26 in the engagement release direction DB2 is fixed to the inner surface of the first base part 20.

[0086] Figure 13 This is a cross-sectional view showing the second joint 16B according to the second embodiment. In the second embodiment, the structure of the second joint 16B differs from that in the second embodiment. The second joint 16B of the second embodiment has a second base portion 30.

[0087] In the first embodiment, the second base portion 30 is disposed on the second surface 12F2 of the male connector component 12. In contrast, in this embodiment, the second base portion 30 is integrally formed with the female connector component 14. Alternatively, the first surface 30F1 of the second base portion 30 may be on the same surface as the first surface 14F1 of the female connector component 14. Similarly, the second surface 30F2 of the second base portion 30 may be on the same surface as the second surface 14F2 of the female connector component 14. Furthermore, the first surface 30F1 of the second base portion 30 faces the first mating body 16A (first base portion 20) during installation. The second surface 30F2 of the second base portion 30 is the surface opposite to the first surface 30F1 of the second base portion 30.

[0088] In the first embodiment, an insertion hole 30IH and a locking hole 30EH are formed in the second base portion 30. In contrast, in this embodiment, the locking hole 30EH is not formed. Instead, the insertion hole 30IH is formed such that the extension portion 22 is slidable in the locking / unlocking direction DB. The insertion hole 30IH extends from the first surface 30F1 of the second base portion 30 in the insertion / removal direction DA to the second surface 30F2, and penetrates through the second base portion 30.

[0089] Figure 14 yes Figure 13 A three-dimensional image. Figure 15This is a front view of the insertion hole 30IH according to the second embodiment, viewed from the pull-out direction DA2. The insertion hole 30IH in this embodiment is composed of a first hole portion HP1, a second hole portion HP2, and a third hole portion HP3. The first hole portion HP1 is located on the side of the insertion hole 30IH in the engagement / disengagement direction DB2. The second hole portion HP2 is located on the side of the insertion hole 30IH in the engagement direction DB1. The third hole portion HP3 is located between the first hole portion HP1 and the second hole portion HP2, and communicates with both the first hole portion HP1 and the second hole portion HP2. When the insertion hole 30IH is viewed from the front in the insertion direction DA1, the second hole portion HP2 and the third hole portion HP3 are formed on the second surface 30F2 of the second base portion 30. On the other hand, when the insertion hole 30IH is viewed from the front in the pull-out direction DA2, the first hole portion HP1, the second hole portion HP2, and the third hole portion HP3 are formed on the first surface 30F1 of the second base portion 30. That is, the insertion hole 30IH penetrates the second base portion 30 through the second hole portion HP2 and the third hole portion HP3, but does not penetrate the second base portion 30 through the first hole portion HP1.

[0090] The first stepped portion 22X and the second stepped portion 22Y can pass through the first hole HP1. The first stepped portion 22X and the second stepped portion 22Y cannot pass through the second hole HP2. The second stepped portion 22Y can pass through the third hole HP3, while the first stepped portion 22X cannot pass through the third hole HP3. Therefore, the extension 22 can only be inserted through the first hole HP1 in the insertion hole 30IH. In addition, when the extension 22 is inserted into the first intermediate portion 22B relative to the first hole HP1, the extension 22 can slide towards the second hole HP2 via the third hole HP3.

[0091] In addition to the second base portion 30 described above, the second coupling body 16B of the second embodiment also has a first stop portion 40 and a second stop portion 42. The first stop portion 40 is the portion that engages with the second step portion 22Y. This first stop portion 40 is the peripheral portion of the second hole portion HP2 in the second surface 30F2 of the second base portion 30. The second stop portion 42 is the portion that engages with the first step portion 22X. This second stop portion 42 is a protrusion that extends from the inner surface of the second base portion 30 into the third hole portion HP3. The second stop portion 42 is located between the first surface 30F1 and the second surface 30F2. Furthermore, the second coupling body 16B of the second embodiment does not include the stop portion 32, the stop force application portion 34, or the operating portion 36.

[0092] Next, the operation of the second engaging member 16B when the extension 22 is inserted will be described. In this embodiment, the operator operates the male connector member 12 and the female connector member 14 to insert the extension 22 into the insertion hole 30IH. Figure 16As shown, the extension 22 is inserted into the first hole HP1 in the insertion hole 30IH. When the extension 22 is inserted, the tip 22D of the extension 22 contacts the inner surface of the second base 30, and the first middle portion 22B of the extension 22 is confined to the first hole HP1. In this case, the extension 22 can slide in the engagement direction DB1.

[0093] When the extension 22 moves in the engaging direction DB1 according to the operator's operation, then as Figure 15 As shown, the outer peripheral surface of the top end portion 22D of the extension 22 contacts the inner surface of the second base portion 30 in the third hole portion HP3. In this case, the extension 22 cannot move in the engaging direction DB1.

[0094] Subsequently, according to the operator's operation, the extension 22 moves in the insertion direction DA1. When the first base portion 20 and the second base portion 30 come into contact, as... Figure 17 As shown, the second intermediate portion 22C and the top portion 22D protrude from the second surface 30F2 of the second base portion 30. In this case, the extension portion 22 can slide in the engagement direction DB1.

[0095] Subsequently, when the extension 22 moves in the engaging direction DB1 according to the operator's operation, then as Figure 18 As shown, the outer peripheral surface of the first intermediate portion 22B of the extension 22 contacts the inner surface of the second base portion 30 in the second hole portion HP2. In this case, the first intermediate portion 22B of the extension 22 is disposed in the second hole portion HP2, and the extension 22 cannot move in the engagement direction DB1.

[0096] Even without operator intervention, the first intermediate portion 22B of the extension 22 is maintained in the position of the second hole HP2 by the force of the extension force application portion 26. In this state, even if a force is applied to pull out the extension 22, the first stop portion 40 engages with the second step portion 22Y, thereby preventing the extension 22 from disengaging from the insertion hole 30IH. Therefore, even if the pressure of the fluid flowing between the convex flow path end 12A and the concave flow path end 14A is high, the accidental disconnection of the male connector component 12 and the female connector component 14 can be avoided.

[0097] Next, the operation of the second engaging member 16B when the extension 22 is pulled out will be described. In this embodiment, the operator operates the male connector member 12 and the female connector member 14 to pull out the extension 22 from the insertion hole 30IH. First, after the extension 22 moves in the engagement release direction DB2 (refer to...), Figure 17 ), and move in the direction of pulling out DA2.

[0098] At this time, as described above, sometimes a relatively large force is applied to the extension 22 in the direction of withdrawal from the insertion hole 30IH (withdrawal direction DA2). In this case, such as Figure 19 As shown, the second stop 42 engages with the first stepped portion 22X of the extension 22 that is to be pulled out in the pull-out direction DA2. Therefore, the extension 22 will not disengage from the insertion hole 30IH. As a result, it is possible to avoid the situation where the connection between the male connector component 12 and the female connector component 14 is forcefully released.

[0099] With the first step portion 22X engaged with the second stop portion 42, the extension portion 22 is allowed to move in the engagement release direction DB2. By moving the extension portion 22 in the engagement release direction DB2, when the extension portion 22 is located at the first hole portion HP1 of the insertion hole 30IH, as... Figure 16 As shown, the extension 22 can be pulled out from the insertion hole 30IH. In this way, the connection and disconnection between the male connector component 12 and the female connector component 14 can be safely performed.

[0100] The second embodiment can also be modified. For example, there may be one extension 22 or more than three extensions 22. When there are multiple extensions 22, the number of insertion holes 30IH corresponds to the number of extensions 22.

[0101] (Third Implementation)

[0102] Next, the loading and unloading structure 16 according to the third embodiment will be described. Furthermore, in the third embodiment, structural elements identical to those in the loading and unloading structure 16 described above are marked with the same reference numerals, and detailed descriptions thereof are omitted. Figure 20 This is a schematic diagram showing the connection device 10 in the non-connected state according to the third embodiment. Figure 21 This is a schematic diagram showing the connection device 10 in the third embodiment.

[0103] In the third embodiment, similar to the first embodiment, the first connector 16A is disposed on the female connector component 14, and the second connector 16B is disposed on the male connector component 12. Alternatively, the first connector 16A may be disposed on the male connector component 12, and the second connector 16B may be disposed on the female connector component 14.

[0104] In the third embodiment, the structure of the first coupling body 16A differs from that in the first embodiment. The first coupling body 16A in the third embodiment has a first base portion 20 and two extension portions 22. Furthermore, the first coupling body 16A in the third embodiment does not have a base applying portion 24. Therefore, a recess 20A for arranging the base applying portion 24 is not formed in the first base portion 20.

[0105] Two extensions 22 are arranged spaced apart, for example, in the width direction of the female connector component 14. The width direction of the female connector component 14 is orthogonal to the insertion / removal direction DA and the engagement / disengagement direction DB, respectively. Each extension 22 is formed with the same structure.

[0106] In the extension 22 of the third embodiment, the stepped portion formed on the outer peripheral surface is one of the first stepped portions 22X. The extension 22 is, for example, composed of a second intermediate portion 22C and a top portion 22D. In this embodiment, one end of the second intermediate portion 22C is the base end of the extension 22 and is fixed to the first base portion 20. The other end of the second intermediate portion 22C is connected to the top portion 22D.

[0107] Figure 22 This is an exploded perspective view showing the second joint 16B according to the third embodiment. Figure 23 This is a cross-sectional view showing the loading and unloading structure 16 according to the third embodiment. The second coupling body 16B has a second base part 30, a first stop part 52, a second stop part 54, a stop force application part 34, and an operation part 36.

[0108] In this embodiment, the second base portion 30 does not have a locking hole 30EH. The second base portion 30 of this embodiment can be configured to join the base body 30C and the cover plate 30D. The base body 30C is formed as a box with an opening on the insertion direction DA1 side. The cover plate 30D covers the opening on the insertion direction DA1 side of the base body 30C. Two inlet openings 30oP for inserting the extension 22 are formed in the cover plate 30D. The space 30S surrounded by the cover plate 30D and the base body 30C, and the two inlet openings 30oP, constitute an insertion hole 30IH for the extension 22.

[0109] The inlet opening 30oP is formed to allow the extension 22 to slide. In this embodiment, the direction in which the extension 22 slides through the inlet opening 30oP is the width direction of the male connector component 12. The inlet opening 30oP has a first inlet portion E1 and a second inlet portion E2. The first stepped portion 22X can pass through the first inlet portion E1. The first stepped portion 22X cannot pass through the second inlet portion E2. Therefore, the extension 22 can be inserted into the insertion hole 30IH from the first inlet portion E1. In addition, when the extension 22 is inserted into the insertion hole 30IH to the second intermediate portion 22C, the extension 22 can slide towards the second inlet portion E2. The peripheral portion of the second inlet portion E2 in the pull-out direction DA2 of the cover plate 30D is a second stop portion 54 that engages with the first stepped portion 22X.

[0110] The first stop 52 penetrates one side wall of the second base portion 30 (base body 30C). The first stop 52 is supported on the second base portion 30 (base body 30C) in a manner that allows it to slide in the engagement direction DB1 or the engagement release direction DB2.

[0111] Two through holes 52HL are formed in the first stop portion 52. The portion of the first stop portion 52 with each through hole 52HL is disposed in the space 30S inside the second base portion 30. Each through hole 52HL extends along the insertion / removal direction DA. The extension portion 22 is capable of being inserted through each through hole 52HL. A portion of the periphery of the through hole 52HL in the first stop portion 52 is a portion that engages with the first step portion 22X.

[0112] An operating part 36 is connected to the end of the first stop 52 in the engagement direction DB1. The end of the first stop 52, to which the operating part 36 is connected, is disposed outside the second base portion 30. A stop force-applying part 34 is disposed between the second base portion 30 (base body 30C) and the operating part 36. The first stop 52 applies force to the stop force-applying part 34 in the engagement direction DB1 via the operating part 36. When the extension 22 is not inserted into the insertion hole 30IH, the first stop 52 is located in the insertion hole 30IH.

[0113] Next, the operation of the second coupling 16B when the extension 22 is inserted will be explained. For example... Figure 24 As shown, the extension 22 is inserted into the first inlet E1 through the inlet opening 30oP. Then, as... Figure 25 As shown, the extension 22 slides until the second middle part 22C of the extension 22 is located at the second inlet part E2.

[0114] When the second intermediate portion 22C of the extension 22 is located at the second inlet portion E2, the through hole 52HL of the first stop portion 52 is located in the pull-out direction DA2 of the extension 22. In this case, when the through hole 52HL is viewed from the front along the pull-out direction DA2, it appears as follows: Figure 26 As shown, the top end 22D of the extension 22 and the through hole 52HL are located at a position offset from the engagement / disengagement direction DB. Therefore, when the extension 22 is inserted into the insertion hole 30IH, the inclined surface 22SL of the top end 22D contacts the first stop 52. As the insertion of the extension 22 continues, the first stop 52 slides in the disengagement direction DB2 through the inclined surface 22SL of the extension 22.

[0115] When the extension 22 is inserted, the tip 22D is pulled out from the through hole 52HL in the pull-out direction DA2, then as Figure 23As shown, the outer peripheral surface of the second intermediate portion 22C abuts against the inner surface of the first stop portion 52, which is connected to the through hole 52HL, due to the force applied by the stop force application portion 34. This state is maintained by the force applied by the stop force application portion 34. In this state, even if a force is generated to pull out the extension portion 22, the peripheral portion of the through hole 52HL in the first stop portion 52 hooks onto the first step portion 22X of the extension portion 22, and the first stop portion 52 engages with the first step portion 22X. Therefore, it is possible to suppress the extension portion 22 from falling out of the insertion hole 30IH. Therefore, even if the pressure of the fluid flowing between the convex flow path end 12A and the concave flow path end 14A is high, it is possible to avoid the situation where the connection between the male connector component 12 and the female connector component 14 is accidentally disengaged.

[0116] Next, the operation of the second coupling 16B when the extension 22 is pulled out will be explained. When the operator presses the pressure surface 36F of the operating part 36, it will... Figure 27 As shown, the first stop 52, connected to the operating part 36, moves in the engagement release direction DB2. Therefore, the peripheral portion of the through hole 52HL in the first stop 52 moves in the engagement release direction DB2. Thus, the extension 22 can pass through the through hole 52HL.

[0117] At this time, as described above, sometimes a large force is applied in the direction in which the extension 22 is pulled out of the insertion hole 30IH. In this case, such as Figure 25 As shown, the second stop 54 engages with the first stepped portion 22X of the extension 22 to be pulled out. As described above, the second stop 54 is the peripheral portion of the second inlet portion E2 in the surface of the cover plate 30D in the pull-out direction DA2. Therefore, the extension 22 will not disengage from the insertion hole 30IH. As a result, it is possible to avoid the situation where the connection between the male connector component 12 and the female connector component 14 is forcefully released.

[0118] After the engagement of the first step portion 22X is released, when the extension portion 22 slides to the point where the second intermediate portion 22C of the extension portion 22 is located at the first entrance portion E1, then as follows Figure 24 As shown, the extension 22 can be pulled out from the insertion hole 30IH. In this way, the connection and disconnection between the male connector component 12 and the female connector component 14 can be safely performed.

[0119] (Fourth Implementation)

[0120] Next, the loading and unloading structure 16 according to the fourth embodiment will be described. In the fourth embodiment, the same reference numerals are used to denote the same constituent elements as described above. Figure 28 This is a schematic diagram showing the connection device 10 in the non-connected state according to the fourth embodiment. Figure 29This is a schematic diagram illustrating the connection device 10 according to the fourth embodiment. The connection device 10 is a device for connecting flow paths. The connection device 10 includes a male connector component 12, a female connector component 14, and a mounting / unmounting structure 16.

[0121] The male connector component 12 is a male connector that can be attached and detached from the female connector component 14. The male connector component 12 has a plate-shaped main body 12X, a plurality of convex flow path ends 12A, and a plurality of tube connection portions 12B.

[0122] Multiple convex flow path ends 12A protrude from the first surface 12F1 of the main body 12X. The first surface 12F1 is the surface facing the female connector component 14 during installation. The convex flow path ends 12A can be either output ends that supply fluid to the female connector component 14 or input ends that supply fluid supplied from the female connector component 14. Two rows of multiple convex flow path ends 12A arranged in a single direction are arranged in a straight line. Furthermore, this row group can be one row or three or more rows.

[0123] Multiple tube connectors 12B protrude from the second surface 12F2 of the male connector component 12. The second surface 12F2 is the surface of the main body 12X opposite to the first surface 12F1. The multiple tube connectors 12B are provided corresponding to multiple convex flow path ends 12A. The tube connectors 12B communicate with the corresponding convex flow path ends 12A. A tube (not shown) is installed at one end of the tube connector 12B.

[0124] The female connector component 14 is a female connector that can be attached to and detached from the male connector component 12. The female connector component 14 has a plate-shaped main body 14X, a plurality of concave flow path ends 14A, and a plurality of tube connection portions 14B.

[0125] Multiple concave flow path ends 14A are configured to engage one-to-one with multiple convex flow path ends 12A. Each concave flow path end 14A is a hole formed from a first surface 14F1 of the main body 14X toward the interior. The first surface 14F1 is the surface facing the male connector component 12 during installation. When the convex flow path ends 12A engage with the concave flow path ends 14A (see reference...) Figure 29The flow path of the concave flow path end 14A is connected to the flow path of the convex flow path end 12A. A sealing member (not shown) is provided at the concave flow path end 14A. This sealing member seals the gap between the concave flow path end 14A and the convex flow path end 12A when they are engaged, thereby suppressing fluid leakage. Two groups of concave flow path ends 14A arranged in one direction are arranged in a straight line. Alternatively, this group can be one column or three or more columns.

[0126] Multiple tube connectors 14B protrude from the second surface 14F2 of the female connector component 14. The second surface 14F2 is the side of the female connector component 14 opposite to the first surface 14F1. The multiple tube connectors 14B are provided corresponding to multiple concave flow path ends 14A. The tube connectors 14B communicate with their corresponding concave flow path ends 14A. A tube (not shown) is mounted at one end of each tube connector 14B.

[0127] The loading and unloading structure 16 has a first engaging body 16A and a second engaging body 16B. The first engaging body 16A is disposed on one of the male connector component 12 and the female connector component 14. The second engaging body 16B is disposed on the other of the male connector component 12 and the female connector component 14.

[0128] In this embodiment, the first connector 16A is disposed on the male connector component 12, and the second connector 16B is disposed on the female connector component 14. Alternatively, the first connector 16A may be disposed on the female connector component 14, and the second connector 16B may be disposed on the male connector component 12.

[0129] The first connector 16A is disposed at both ends of the main body 12X in the direction in which the convex flow path ends 12A constituting the column group are arranged (in the direction of the long side of the main body 12X). Similarly, the second connector 16B is disposed at both ends of the main body 14X in the direction in which the concave flow path ends 14A constituting the column group are arranged (in the direction of the long side of the main body 14X). In this embodiment, there are two first connectors 16A and two connectors 16B, but it is not limited to this.

[0130] The first coupling 16A has a first base portion 20, a cylindrical member 60, an insertion member 70, a shaft member 72, and a retaining member 100. Details of the cylindrical member 60, the insertion member 70, the shaft member 72, and the retaining member 100 will be described later.

[0131] The first base portion 20 is formed separately from the main body portion 12X and is joined to the main body portion 12X. Alternatively, the first base portion 20 may be integrally formed with the main body portion 12X. The first base portion 20 is formed as a plate extending along the long side of the main body portion 12X. The width of the first base portion 20 is the same as the length along the short side of the main body portion 12X, but is not limited thereto. The first base portion 20 has a first surface 20F1 and a second surface 20F2 opposite to the first surface 20F1. The first surface 20F1 is used when the female connector component 14 is mounted relative to the male connector component 12 (see reference). Figure 29 It is connected to the second joint 16B.

[0132] The second coupling 16B has a second base portion 30. The second base portion 30 is integrally formed with the main body portion 14X. The second base portion 30 may also be formed separately from the main body portion 14X and joined to it. The second base portion 30 is formed as a plate extending along the long side direction of the main body portion 14X. The width of the second base portion 30 is the same as the length in the short side direction of the main body portion 14X, but is not limited thereto. The second base portion 30 has a first surface 30F1 and a second surface 30F2 opposite to the first surface 30F1. The first surface 30F1 is used when the female connector component 14 is mounted relative to the male connector component 12 (see reference). Figure 29 It is connected to the first coupling body 16A. A through hole 30TH is formed in the second base portion 30 along the insertion / removal direction DA, penetrating the second base portion 30. The opening size of the through hole 30TH in the insertion / removal direction DA is constant, but not limited thereto.

[0133] Figure 30 This is a cross-sectional view of the first connector 16A and the second connector 16B. A first opening edge 30X and a second opening edge 30Y are formed on both sides (first surface 30F1 and second surface 30F2) of the second base portion 30 of the second connector 16B through the through hole 30TH. The first opening edge 30X is formed on the second surface 30F2. The first opening edge 30X is located in the insertion direction DA1 relative to the second opening edge 30Y. The second opening edge 30Y is formed on the first surface 30F1. The second opening edge 30Y is located in the pull-out direction DA2 relative to the first opening edge 30X. An inclined surface 30F may also be provided on the first opening edge 30X. The inclined surface 30F is inclined such that the opening size of the through hole 30TH increases as it approaches the second surface 30F2.

[0134] A cylindrical member 60 is provided in the first base portion 20. The cylindrical member 60 extends from the first base portion 20 in the pull-out direction DA2. The cylindrical member 60 is composed of a first cylindrical portion 62 and a second cylindrical portion 64.

[0135] The first cylindrical portion 62 engages with a through hole 20TH that penetrates the first base portion 20 along the insertion / removal direction DA. The first cylindrical portion 62 may also be integrally formed with the first base portion 20. The second cylindrical portion 64 engages with the end of the first cylindrical portion 62 that is opposite to the end engaged with the through hole 20TH. The second cylindrical portion 64 may also be integrally formed with the first cylindrical portion 62. In the second cylindrical portion 64, a plurality of holes 64H are formed at intervals along the circumference of the second cylindrical portion 64.

[0136] A first limiting portion 66 and a second limiting portion 68 are provided in the cylindrical member 60. The first limiting portion 66 is a portion that limits the movement of the insertion member 70 in the insertion direction DA1. The first limiting portion 66 is located within the through hole 20TH. The first limiting portion 66 is formed at the end of the first cylindrical member 62 in the insertion direction DA1. The first limiting portion 66 faces the outer peripheral portion (limiting portion 78) of the insertion member 70. The second limiting portion 68 is a portion that limits the movement of the insertion member 70 in the withdrawal direction DA2. The second limiting portion 68 is disposed inside the first cylindrical member 62 (internal space). The second limiting portion 68 is located in the withdrawal direction DA2 relative to the first limiting portion 66. The second limiting portion 68 is formed at the end of the second cylindrical member 64 in the insertion direction DA1. The second limiting portion 68 faces the end of the insertion member 70 in the withdrawal direction DA2.

[0137] The insertion member 70 is a cylindrical member that is inserted into the through hole 30TH of the second base portion 30. The base end portion 74 of the insertion member 70 is covered by the cylindrical member 60. The base end portion 74 of the insertion member 70 is supported inside the cylindrical member 60 in a manner that allows it to slide along the insertion / removal direction DA.

[0138] The top end 76 of the insertion member 70 protrudes from the interior (internal space portion) of the cylindrical member 60. At the top end 76 of the insertion member 70, a plurality of holes 76H are formed at intervals along the circumference of the insertion member 70. The surfaces 76F surrounding each of the plurality of holes 76H slope in such a manner that the opening size of the holes 76H decreases from the inner circumferential surface of the insertion member 70 toward the outer circumferential surface.

[0139] A limiting portion 78 is provided in the insertion member 70. The limiting portion 78 is formed on the outer peripheral surface of the base end portion 74. The limiting portion 78 is located between the first limiting portion 66 and the second limiting portion 68. The limiting portion 78 corresponds to the first stepped portion 22X described above. A first force-applying member 80 is provided between the limiting portion 78 and the second limiting portion 68. The first force-applying member 80 applies force to the insertion member 70 in the pull-out direction DA2 against the cylindrical member 60. The first force-applying member 80 is a helical spring, but is not limited to it.

[0140] The insertion member 70 is provided with a first locking member 82. The first locking member 82 is respectively disposed in a plurality of holes 76H. The first locking member 82 may also be spherical. A portion of the first locking member 82 may protrude from the outer peripheral surface of the insertion member 70.

[0141] An abutment portion 84 is provided in the insertion member 70. The abutment portion 84 is formed on the outer peripheral surface of the top end portion 76. The abutment portion 84 is a stepped portion of the outer peripheral surface of the insertion member 70 due to the difference in outer diameter. The abutment portion 84 is located in the pull-out direction DA2 relative to the hole portion 76H. The abutment portion 84 is disposed between the hole portion 76H and the limiting portion 78. The abutment portion 84 abuts against the second opening edge portion 30Y.

[0142] A first shaft limiting portion 86 and a second shaft limiting portion 88 are formed on the inner peripheral surface of the insertion member 70. The first shaft limiting portion 86 and the second shaft limiting portion 88 are portions that limit the movement of the shaft member 72 in the insertion direction DA1. The first shaft limiting portion 86 and the second shaft limiting portion 88 are stepped portions on the inner peripheral surface of the insertion member 70 due to the difference in their inner diameters. The first shaft limiting portion 86 is located in the insertion direction DA1 compared to the second shaft limiting portion 88. The first shaft limiting portion 86 is located on the inner side compared to the second shaft limiting portion 88.

[0143] The shaft component 72 passes through the cylindrical component 60 and the insertion component 70. In other words, the shaft component 72 is inserted into the interior of the cylindrical component 60 and the interior of the tubular insertion component 70. The shaft component 72 is slidably supported on the insertion component 70 along the insertion / removal direction DA. The shaft component 72 has a first end 72A, a second end 72B, a first intermediate portion 72C, a second intermediate portion 72D, and a third intermediate portion 72E.

[0144] The first end 72A is the end of the shaft member 72 in the insertion direction DA1. The first end 72A protrudes from the insertion member 70. The first end 72A is formed to abut against the end face of the insertion member 70 in the insertion direction DA1. The first end 72A suppresses the pulling out of the shaft member 72 in the pull-out direction DA2. The second end 72B is the end of the shaft member 72 in the pull-out direction DA2. The second end 72B is used as an operating part for pressing in the insertion direction DA1. The second end 72B is formed to abut against the end face of the cylindrical member 60 in the pull-out direction DA2. The second end 72B restricts the pressing of the shaft member 72 in the insertion direction DA1.

[0145] The first intermediate portion 72C is located between the first end portion 72A and the second intermediate portion 72D. The first intermediate portion 72C is, for example, cylindrical. The second intermediate portion 72D is located between the first intermediate portion 72C and the third intermediate portion 72E. The second intermediate portion 72D is, for example, cylindrical. The third intermediate portion 72E is located between the second intermediate portion 72D and the second end portion 72B. The third intermediate portion 72E is, for example, cylindrical. The diameter of the third intermediate portion 72E is larger than the diameter of the second intermediate portion 72D. The diameter of the second intermediate portion 72D is larger than the diameter of the first intermediate portion 72C.

[0146] The first intermediate portion 72C, the second intermediate portion 72D, and the third intermediate portion 72E can be formed as a single unit, but they can also be separate units. The first end portion 72A is separate from the first intermediate portion 72C, but they can also be a single unit. The second end portion 72B is separate from the third intermediate portion 72E, but they can also be a single unit.

[0147] The shaft component 72 is subjected to a pull-out direction DA2 relative to the cylindrical component 60 by a second force-applying component 90. The second force-applying component 90 is disposed between the first shaft limiting portion 86 and the second intermediate portion 72D. The second force-applying component 90 applies a force to the shaft component 72 relative to the insertion component 70 in the pull-out direction DA2. The second force-applying component 90 is a helical spring, but is not limited to this.

[0148] A first recess 92 and a second recess 94 are formed on the outer peripheral surface of the shaft component 72. The first recess 92 is formed in the first intermediate portion 72C. The second recess 94 is formed in the third intermediate portion 72E. The second recess 94 is located in the pull-out direction DA2 relative to the first recess 92. The second recess 94 corresponds to the second stepped portion 22Y described above.

[0149] The retaining member 100 is formed in a cylindrical shape. The retaining member 100 is inserted through the second cylindrical portion 64 of the cylindrical member 60. The retaining member 100 covers and retains the second locking member 102 in such a way that it will not fall off the outside of the cylindrical member 60. The second locking members 102 are respectively disposed in a plurality of holes 64H. The second locking members 102 may also be spherical. The retaining member 100 covers the second recess 94 via the cylindrical member 60.

[0150] The retaining member 100 is slidable along the second cylindrical portion 64 in the insertion / removal direction DA. The sliding of the retaining member 100 in the insertion direction DA1 is restricted by the insertion-side limiting portion 104. On the other hand, the sliding of the retaining member 100 in the removal direction DA2 is restricted by the removal-side limiting portion 106.

[0151] An insertion-side limiting portion 104 is provided on the outer peripheral surface of the cylindrical member 60. The insertion-side limiting portion 104 is a stepped portion of the outer peripheral surface of the cylindrical member 60 formed due to its different outer diameter. The insertion-side limiting portion 104 is located in the insertion direction DA1 relative to the hole portion 64H. The insertion-side limiting portion 104 is disposed between the hole portion 64H and the second limiting portion 68. The end portion of the retaining member 100 in the insertion direction DA1 abuts against the insertion-side limiting portion 104.

[0152] A pull-out side limiting portion 106 is provided on the outer peripheral surface of the cylindrical member 60. The pull-out side limiting portion 106 may also be a ring member that fits into the cylindrical member 60. The pull-out side limiting portion 106 is located in the pull-out direction DA2 relative to the hole portion 64H. The pull-out side limiting portion 106 is located inside the insertion side limiting portion 104. The pull-out side limiting portion 106 is disposed between the hole portion 64H and the end of the cylindrical member 60 in the pull-out direction DA2. A locking portion 108 formed on the inner peripheral surface of the retaining member 100 abuts against the pull-out side limiting portion 106. The locking portion 108 is a stepped portion of the inner peripheral surface of the second cylindrical portion 64 formed due to the difference in inner diameter.

[0153] The retaining member 100 is subjected to a force by the third force-applying member 110 relative to the cylindrical member 60 in the pull-out direction DA2. The third force-applying member 110 is disposed between the retaining member 100 and the cylindrical member 60. The third force-applying member 110 applies a force to the retaining member 100 relative to the cylindrical member 60 in the pull-out direction DA2. The third force-applying member 110 is a helical spring, but is not limited thereto.

[0154] A cutout 112 is formed on the inner peripheral surface of the retaining member 100 in the pull-out direction DA2. The cutout 112 extends from the end of the retaining member 100 in the pull-out direction DA2 toward the insertion direction DA1. A locking portion 108 formed on the inner peripheral surface of the retaining member 100 is located at the end of the cutout 112 in the insertion direction DA1.

[0155] Next, the operation of the first coupling 16A when the extension 22 is inserted into the through hole 30TH will be described.

[0156] First, the user presses the shaft component 72 into the insertion direction DA1. When the second end 72B of the shaft component 72 abuts against the cylindrical component 60, the first recess 92 of the shaft component 72 aligns with the first locking component 82. Thus, the first locking component 82 can retract into the first recess 92. In this state, as... Figure 31 As shown, the user inserts the tip 76 of the insertion component 70 into the through hole 30TH from the first surface 30F1 of the second base portion 30 toward the second surface 30F2. When the abutting portion 84 abuts against the first surface 30F1 of the second base portion 30, the insertion of the insertion component 70 is complete. Figure 31 In the middle, the first locking component 82 is in a state of being retracted into the first recess 92.

[0157] Subsequently, as Figure 32 As shown, the user presses the first base portion 20 into the first base portion 20 along the insertion direction DA1. Simultaneously, the cylindrical member 60 disposed on the first base portion 20 also moves in the insertion direction DA1. Based on this movement, the cylindrical member 60 is forced in the pull-out direction DA2 by the first force-applying member 80. When the first base portion 20 abuts against the first surface 30F1 of the second base portion 30, the concave flow path end 14A ( Figure 28 ) and convex flow path end 12A ( Figure 28 ) Inlay.

[0158] After the first base portion 20 abuts against the first surface 30F1 of the second base portion 30, the user releases the pressing of the shaft member 72 in the insertion direction DA1. When the pressing of the shaft member 72 is released, the shaft member 72 moves in the pull-out direction DA2 via the second force-applying member 90. Accompanying this movement, the first recess 92 also moves in the pull-out direction DA2. As a result, the first locking member 82 is pressed by the shaft member 72, and a portion of the first locking member 82 protrudes from the outer peripheral surface of the shaft member 72. Consequently, the first locking member 82 engages with the first opening edge 30X of the second base portion 30. Even without user operation after the pressing of the shaft member 72 is released, the first locking member 82 remains engaged with the first opening edge 30X, thus being user-friendly.

[0159] With the first locking member 82 locked to the first opening edge 30X, even if a force is applied to pull out the insertion member 70, it is possible to prevent the insertion member 70 from being pulled out of the through hole 30TH. Therefore, even at the convex flow path end 12A ( Figure 28 ) and concave flow path end 14A ( Figure 28 The high pressure of the fluid flowing between the male connector component 12A and the female connector component 14A maintains the engagement between the convex flow path end 12A and the concave flow path end 14A. As a result, it is possible to avoid unintentionally disengaging the male connector component 12 and the female connector component 14, thus ensuring safety.

[0160] With the first locking member 82 locked to the first opening edge 30X, the second recess 94 of the shaft member 72 faces the second locking member 102. Thus, the second locking member 102 can retract into the second recess 94. When the second locking member 102 can retract into the second recess 94, the retaining member 100 moves in the pull-out direction DA2 via the third force-applying member 110. Accompanying this movement, the second locking member 102 is pressed by the retaining member 100, and a portion of the second locking member 102 enters the second recess 94. Thus, the second locking member 102 is locked to the shaft member 72. Even after the pressing of the shaft member 72 is released without user operation, the second locking member 102 remains locked to the shaft member 72, making it user-friendly.

[0161] With the second locking member 102 locked to the shaft member 72, the shaft member 72 will not move in the insertion direction DA1 even if it is pressed. Therefore, the locking of the first locking member 82 relative to the first opening edge 30X is not released. Therefore, the installation state of the male connector member 12 and the female connector member 14 is maintained.

[0162] Next, the operation of the first coupling 16A when the extension 22 is pulled out from the through hole 30TH will be explained.

[0163] When the user Figure 32 When the state of the sliding retaining component 100 of DA1 in the insertion direction is reversed, it becomes... Figure 33 The state is such that, as the retaining member 100 slides, the cut 112 of the retaining member 100 is opposite to the second locking member 102. Thus, the second locking member 102 can retract into the cut 112. When the second locking member 102 can retract into the cut 112, the cylindrical member 60 is forced in the pulling direction DA2 by the first force-applying member 80. Accompanying this, the cylindrical member 60 and the first base portion 20 on which the cylindrical member 60 is provided move in the pulling direction DA2. Thus, the first engaging body 16A separates from the second engaging body 16B, and the convex flow path end 12A ( Figure 28 ) and concave flow path end 14A ( Figure 28 The chimerism state of ) is released.

[0164] Even if the cylindrical member 60 and the first base portion 20 move in the pull-out direction DA2, the first locking member 82 remains locked relative to the first opening edge 30X of the second base portion 30. Therefore, the insertion member 70 is fixed to the second coupling body 16B.

[0165] There is 12A at the end of the convex flow path ( Figure 28 ) and concave flow path end 14A ( Figure 28 The moment the engagement state of the first connector 16A is released, a large force is applied in the pull-out direction DA2. For example, the pressure difference between the inside and outside of the flow path connecting the convex flow path end 12A and the concave flow path end 14A is one reason. In this case, the limiting portion 78 of the insertion member 70 fixed to the second connector 16B engages the first limiting portion 66 of the cylindrical member 60, thereby limiting the movement of the first connector 16A relative to the second connector 16B in the pull-out direction DA2. Therefore, it is possible to prevent the first connector 16A and the second connector 16B from being forcefully separated.

[0166] Even if the cylindrical member 60 moves in the pull-out direction DA2, the shaft member 72 inserted into the insertion member 70 remains stationary. Therefore, according to the movement of the cylindrical member 60 in the pull-out direction DA2, the second locking member 102 is pressed out from the second recess 94 and moves into the cutout 112. As a result, the locking of the second locking member 102 onto the shaft member 72 is released, and the shaft member 72 can be pressed in along the insertion direction DA1. Even if there is no user operation after the holding member 100 slides in the insertion direction DA1, the locking of the second locking member 102 onto the shaft member 72 is released, which is user-friendly.

[0167] Subsequently, as Figure 34 As shown, the user presses the shaft component 72 into the insertion direction DA1. When the second end 72B of the shaft component 72 abuts against the cylindrical component 60, the first recess 92 of the shaft component 72 aligns with the first locking component 82. Consequently, the first locking component 82 can retract into the first recess 92. Therefore, the user can pull out the insertion component 70 through the through hole 30TH, separating the first coupling body 16A and the second coupling body 16B. As a result, the male connector component 12 can be separated from the female connector component 14. Thus, the connection between the male connector component 12 and the female connector component 14 can be safely released.

[0168] Regarding the above disclosure, the following notes are further disclosed.

[0169] (Note 1)

[0170] The present invention is a connecting device 10 for connecting flow paths, comprising: a male connector component 12 having a plurality of convex flow path ends 12A; a female connector component 14 having concave flow path ends 14A configured to engage one-to-one with the plurality of convex flow path ends; a first engaging body 16A disposed on one of the male connector component and the female connector component; and a second engaging body 16B disposed on the other of the male connector component and the female connector component, wherein the second engaging body has a through hole 30TH extending along an insertion / removal direction DA, the insertion / removal direction being the direction for inserting / removing the convex flow path ends and the concave flow path ends; the first engaging body comprising: an insertion member 70, wherein the tip portion 76 of the insertion member is inserted into the through hole in an engaged state where the convex flow path ends and the concave flow path ends are engaged; and a base component 20. A cylindrical component 60 is disposed on the base component and extends in a pull-out direction DA2 opposite to the insertion direction DA1 in which the insertion component is inserted into the through hole. The cylindrical component covers the outer periphery of the base end portion 74 of the insertion component and supports the insertion component. A first force-applying component 80 applies force to the insertion component in the pull-out direction relative to the cylindrical component. A first locking component 82 is disposed on the insertion component and, in the engaged state, locks the first opening edge 30X located in the insertion direction through the through hole and the opening edges formed on both sides of the second engaging body, thereby restricting the movement of the first engaging body relative to the second engaging body in the pull-out direction. A limiting portion 78 is located in the insertion component in the pull-out direction relative to the first locking component and restricts the movement of the first engaging body relative to the second engaging body in the pull-out direction.

[0171] (Note 2)

[0172] According to Appendix 1, the connecting device may also include: a shaft member 72 that passes through the insertion member and the cylindrical member in the insertion direction; a second force-applying member 90 that applies force to the shaft member relative to the insertion member in the pull-out direction; and a first recess 92 that, in the engaged state, is formed in the shaft member on the outer peripheral surface in the pull-out direction relative to the first locking member, and the first recess is used to allow the first locking member to retract.

[0173] (Note 3)

[0174] According to Appendix 2, the connecting device may also include: a second locking member 102 disposed on the cylindrical member to lock the shaft member in the insertion / removal direction; and a cylindrical retaining member 100 inserted into the end of the cylindrical member in the removal direction and retaining the second locking member.

[0175] (Note 4)

[0176] According to the connecting device described in Appendix 3, it may also include a second recess 94 formed on the outer peripheral surface of the shaft member covered by the retaining member, wherein the second locking member engages with the second recess to lock the shaft member in the insertion / removal direction.

[0177] (Note 5)

[0178] According to the connecting device described in Appendix 4, it may also include a third force-applying member 110, which applies force to the retaining member in the pull-out direction relative to the cylindrical member. The retaining member retains the second locking member relative to the second recess when it is not operated in the insertion direction. A cutout 112 is formed in the retaining member, which is used to allow the second locking member to move outward when it is operated in the insertion direction.

[0179] (Note 6)

[0180] According to the connecting device described in Appendix 1, the insertion member may also have an abutment portion 84, which, in the engaged state, abuts against a second opening edge 30Y located in the pull-out direction in the opening edge portion formed on both sides of the second coupling body through the through hole, thereby restricting the movement of the insertion member relative to the second coupling body in the insertion direction.

[0181] (Note 7)

[0182] The present invention is a connecting device 10 for connecting flow paths, comprising: a male connector component 12 having a plurality of convex flow path ends 12A; a female connector component 14 having concave flow path ends 14A disposed in a manner capable of engaging one-to-one with the plurality of convex flow path ends; a first engagement body 16A disposed on one of the male connector component and the female connector component; and a second engagement body 16B disposed on the other of the male connector component and the female connector component. The first engagement body has: a first base portion 20; and an extension portion 22 extending from the first base portion along the insertion / removal direction DA. The extension is inserted into the insertion hole 30IH formed in the second coupling body. The insertion and removal direction is the direction of insertion and removal of the convex flow path end and the concave flow path end. The outer peripheral surface of the extension has a first step portion 22X and a second step portion 22Y. The second step portion is located inside the first step portion compared to the base end of the extension. In the engaged state where the convex flow path end and the concave flow path end are engaged, the second step portion engages with the second coupling body to prevent the extension inserted into the insertion hole from disengaging from the insertion hole. After the engagement of the second step portion is released, the first step portion engages with the second coupling body to prevent the extension from disengaging from the insertion hole.

[0183] (Note 8)

[0184] According to the connecting device described in Appendix 7, the second engaging body may also have: a stop portion 32 that engages with the second step portion in the engaged state and engages with the first step portion after the engagement of the second step portion is released; and a stop force application portion 34 that applies force to the stop portion toward the outer periphery of the extension portion to engage the stop portion with the first step portion and the second step portion.

[0185] (Note 9)

[0186] According to the connecting device described in Appendix 8, the second engaging body may also have an operating part 36 that operates the stop part in the opposite direction to the direction in which the force is applied to the stop force-applying part, thereby releasing the engagement of the stop part.

[0187] (Postscript 10)

[0188] According to the connecting device described in Appendix 9, an inclined surface 22SL may be formed at the top end 22D of the extension so that the stop portion can move in the opposite direction when the extension is inserted into the insertion hole.

[0189] (Postscript 11)

[0190] According to any one of the appendices 7 to 10, the connecting device may also have the first engaging body having a base force-applying portion 24, which applies force to the first base portion in the direction in which the extension is pulled out from the insertion hole.

[0191] (Postscript 12)

[0192] According to the connecting device described in Appendix 7, the insertion hole may also be formed such that the extension can slide in a direction intersecting the insertion / removal direction. The insertion hole has: a first hole portion HP1 through which the first stepped portion and the second stepped portion can pass; a second hole portion HP2 through which the first stepped portion and the second stepped portion cannot pass; and a third hole portion HP3 communicating with the first hole portion and the second hole portion, through which the second stepped portion can pass and the first stepped portion cannot pass. The second engaging body has: a first stop portion 40 that engages with the second stepped portion when the portion between the second stepped portion and the base end in the extension is located in the second hole portion; and a second stop portion 42 that engages with the first stepped portion when the portion between the first stepped portion and the second stepped portion in the extension is located in the third hole portion.

[0193] (Postscript 13)

[0194] According to the connecting device described in Appendix 12, the second engaging body may also have a first surface 30F1 and a second surface 30F2, the first surface facing the first engaging body when the extension is inserted into the insertion hole, the second surface being the surface opposite to the first surface, the first stop being the peripheral portion of the insertion hole in the second surface, and the second stop being a protrusion extending from the second engaging body toward the third hole.

[0195] (Postscript 14)

[0196] According to the connecting device described in Appendix 13, it may also have an extended force-applying portion 26, which is disposed between the first base portion and the extended portion, and applies force to the extended portion in a direction intersecting the insertion / extraction direction.

[0197] (Postscript 15)

[0198] This invention relates to a connecting device 10, connecting flow paths, comprising: a male connector component 12 having a plurality of convex flow path ends 12A; a female connector component 14 having concave flow path ends 14A configured to engage one-to-one with the plurality of convex flow path ends; a first engaging body 16A disposed on one of the male connector component and the female connector component; and a second engaging body 16B disposed on the other of the male connector component and the female connector component. The first engaging body has: a first base portion 20; and an extension portion 22 extending from the first base portion along an insertion / extraction direction DA, and having a stepped portion 22X formed on its outer peripheral surface. The insertion / extraction direction is the direction in which the convex flow path ends and the concave flow path ends are inserted / extracted. The second engaging body has: being hollow. The second base portion 30 of the housing; a first stop portion 52, which supports the second base portion so that it can slide inside the hollow; a stop force application portion 34, which applies force to the first stop portion toward the outer periphery of the extension portion inserted into the hollow; and a second stop portion 54, which prevents the extension portion from being pulled out after the engagement between the first stop portion and the step portion is released. A first inlet portion E1 and a second inlet portion E2 are formed in the second base portion. The step portion can pass through the first inlet portion. The second inlet portion communicates with the first inlet portion and cannot pass through the second inlet portion. The first stop portion engages with the step portion of the extension portion disposed in the second inlet portion to prevent the extension portion inserted into the hollow from being pulled out. The second stop portion is the peripheral portion of the second inlet portion in the second base portion.

[0199] Furthermore, the present invention is not limited to the above disclosure, and various structures can be adopted as long as they do not depart from the spirit of the present invention.

Claims

1. A connecting device (10) for connecting a flow path, characterized in that, have: A male connector component (12) having a plurality of convex flow path ends (12A); A female connector component (14) having a concave flow path end (14A) configured to engage one-to-one with a plurality of the convex flow path ends. A first coupling (16A) is disposed on one of the male connector component and the female connector component; as well as A second coupling (16B) is disposed on the other of the male connector component and the female connector component. The second assembly has a through hole (30TH) extending along the insertion / extraction direction (DA), which is the direction in which the convex flow path end and the concave flow path end are inserted / extracted. The first connector comprises: The insertion component (70) is inserted into the through hole in the fitted state where the convex flow path end and the concave flow path end are engaged; Base component (20); A cylindrical component (60) is disposed on the base component and extends in a pull-out direction (DA2) opposite to the insertion direction (DA1) of the insertion component into the through hole. The cylindrical component covers the outer periphery of the base end (74) of the insertion component and supports the insertion component. A first force-applying component (80) applies force to the insertion component relative to the cylindrical component in the pull-out direction; A first locking component (82) is disposed on the insertion component. In the fitted state, the first locking component locks the first opening edge (30X) located in the insertion direction in the opening edge formed on both sides of the second engaging body through the through hole, thereby restricting the movement of the first engaging body relative to the second engaging body in the pull-out direction. as well as A limiting part (78) is located in the insertion member relative to the first locking member in the pull-out direction, and restricts the movement of the first engaging body relative to the second engaging body in the pull-out direction.

2. The connecting device according to claim 1, characterized in that, have: A shaft component (72) that passes through the insertion component and the cylindrical component along the insertion direction; A second force-applying component (90) applies force to the shaft component relative to the insertion component in the pull-out direction; as well as In the engaged state, the first recess (92) is formed in the shaft member on the outer peripheral surface in the pull-out direction, relative to the first locking member, and the first recess is used to allow the first locking member to retract.

3. The connecting device according to claim 2, characterized in that, have: A second locking component (102) is disposed on the cylindrical component to lock the shaft component in the insertion / removal direction; and A cylindrical retaining member (100) is inserted into the end of the cylindrical member in the pull-out direction and retains the second locking member.

4. The connecting device according to claim 3, characterized in that, The shaft member has a second recess (94) formed on the outer peripheral surface of the shaft member covered by the retaining member. The second locking component engages with the second recess to lock the shaft component in the insertion / removal direction.

5. The connecting device according to claim 4, characterized in that, The device includes a third force-applying component (110) that applies force to the retaining component relative to the cylindrical component in the pull-out direction. When the retaining member is not operated along the insertion direction, it maintains the second locking member relative to the second recess. The retaining member has a cut (112) which, when operated along the insertion direction, allows the second locking member to move outward.

6. The connecting device according to claim 1, characterized in that, The insertion member has an abutment portion (84) that, in the engaged state, abuts against a second opening edge (30Y) in the pull-out direction of an opening edge formed on both sides of the second coupling body through the through hole, thereby restricting the movement of the insertion member relative to the second coupling body in the insertion direction.

7. A connecting device (10) for connecting a flow path, characterized in that, have: A male connector component (12) having a plurality of convex flow path ends (12A); A female connector component (14) having a concave flow path end (14A) configured to engage one-to-one with a plurality of the convex flow path ends. A first coupling (16A) is disposed on one of the male connector component and the female connector component; as well as A second coupling (16B) is disposed on the other of the male connector component and the female connector component. The first coupling has: First base section (20); as well as An extension (22) extends from the first base portion along the insertion / extraction direction (DA) and is inserted into the insertion hole (30IH) formed in the second coupling body. This insertion / extraction direction is the direction in which the convex flow path end and the concave flow path end are inserted / extracted. The outer peripheral surface of the extension has a first stepped portion (22X) and a second stepped portion (22Y), the second stepped portion being located inside the first stepped portion compared to the base end of the extension. In the engaged state where the convex flow path end and the concave flow path end are fitted together, the second stepped portion engages with the second coupling body to prevent the extension portion inserted into the insertion hole from disengaging from the insertion hole. After the engagement of the second step portion is released, the first step portion engages with the second coupling body to prevent the extension portion from disengaging from the insertion hole.

8. The connecting device according to claim 7, characterized in that, The second joint has: The stop part (32) engages with the second step part in the engaged state, and engages with the first step part after the engagement of the second step part is released; as well as The stop force-applying part (34) applies force to the stop part toward the outer periphery of the extension part so that the stop part engages with the first step part and the second step part.

9. The connecting device according to claim 8, characterized in that, The second coupling has an operating part (36) that operates the stop part in the opposite direction to the direction in which the stop force is applied to the stop force application part, thereby releasing the stop part from engaging.

10. The connecting device according to claim 9, characterized in that, In order to move the stop in the opposite direction by inserting the extension into the insertion hole, an inclined surface (22SL) is formed at the top end (22D) of the extension.

11. The connecting device according to any one of claims 7 to 10, characterized in that, The first coupling has a base force-applying portion (24) that applies force to the first base portion in the direction in which the extension is pulled out of the insertion hole.

12. The connecting device according to claim 7, characterized in that, The insertion hole is formed in such a way that the extension can slide in a direction intersecting the insertion / removal direction. The insertion hole has: The first hole (HP1) allows the first stepped portion and the second stepped portion to pass through the first hole; The second hole (HP2) is through which neither the first step nor the second step can pass; as well as The third hole (HP3) communicates with both the first and second holes, allowing the second stepped portion to pass through it, while preventing the first stepped portion from passing through it. The second joint has: The first stop (40) engages with the second step portion when the portion between the second step portion and the base end in the extension is located in the second hole portion; as well as The second stop (42) engages with the first step portion when the portion between the first step portion and the second step portion in the extension is located in the third hole portion.

13. The connecting device according to claim 12, characterized in that, The second coupling has a first surface (30F1) and a second surface (30F2), the first surface facing the first coupling when the extension is inserted into the insertion hole, and the second surface being the surface opposite to the first surface. The first stop is the peripheral portion of the insertion hole in the second surface. The second stop is a protrusion that extends from the second coupling body toward the third hole.

14. The connecting device according to claim 13, characterized in that, It has an extended force-applying part (26) disposed between the first base part and the extension part, and applies force to the extension part in a direction intersecting the insertion and extraction direction.

Images