Coupling device

Abstract

A coupling device (100) is provided with a first member (10) and a coupling part (50). The first member (10) is provided with a first flow path and a mounting part (12). The coupling section (50) is provided with: a first cylinder section (60) having one end section connected to a second cylinder section of a second member having a second flow path; and a disposition section (70) that is disposed at the other end of the first cylinder section (60) and that is attached to the attachment section (12). In the axial direction (AX) of the first cylinder section (60), the movement of the arrangement section (70) relative to the first member (10) is suppressed. The arrangement part (70) is movable relative to the first member (10) in the radial direction (RA) of the first cylinder part (60). The maximum outer diameter (LA) of the arrangement part (70) is smaller than the maximum outer diameter (LB) of the first cylinder part (60).

Description

Technical Field

[0001] The invention relates to a coupling device. Background Art

[0002] The fluid connector includes a tubular member and a coupling mechanism (for example, Patent Document 1). The coupling mechanism is movable inside the tubular member in the radial direction of the tubular member.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Chinese Patent No. 104500887 Summary of the invention

[0006] Problems to be solved by the invention

[0007] In a coupling portion such as the fluid connector of Patent Document 1, a space is required inside the first cylindrical portion for a disposition portion such as a coupling mechanism to move, and therefore the radial size of the coupling portion increases.

[0008] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a coupling device capable of suppressing an increase in the radial size of a coupling portion even when a placement portion is made movable relative to a first member.

[0009] Solutions to Solve Problems

[0010] An exemplary coupling device of the present invention comprises a first component and a coupling portion. The first component comprises a first flow path and a mounting portion. The coupling portion comprises: a first barrel having an end connected to a second barrel of a second component having a second flow path; and a configuration portion, which is configured at the other end of the first barrel and mounted on the mounting portion. In the axial direction of the first barrel, the movement of the configuration portion relative to the first component is suppressed. In the radial direction of the first barrel, the configuration portion is movable relative to the first component. The maximum outer diameter of the configuration portion is smaller than the maximum outer diameter of the first barrel.

[0011] Effects of the Invention

[0012] According to the exemplary present invention, even if the arrangement portion is made movable relative to the first member, it is possible to suppress the radial size of the coupling portion from increasing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an overall perspective view of the connection system according to the first embodiment of the present invention.

[0014] Figure 2 This is an overall perspective view of the connection system according to the first embodiment.

[0015] Figure 3 It is a perspective view showing a cross section of the coupling device according to the first embodiment.

[0016] Figure 4 It is a cross-sectional view of the coupling device according to the first embodiment.

[0017] Figure 5 It is an overall perspective view of a connection system according to Embodiment 2 of the present invention.

[0018] Figure 6 It is a cross-sectional view of the coupling device according to the second embodiment.

[0019] Figure 7 It is a perspective view showing a cross section of the coupling device according to the second embodiment.

[0020] Figure 8 It is an overall perspective view of a connection system according to a third embodiment of the present invention. DETAILED DESCRIPTION

[0021] Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. In addition, in this specification, for easy understanding, mutually orthogonal first direction Z, second direction X and third direction Y are appropriately described. Here, the direction from one end of the first barrel toward the other end of the first barrel is referred to as the "first direction Z". The "first direction Z" is an example of a "predetermined direction". In addition, the direction orthogonal to the first direction Z is referred to as the "second direction X". In addition, the direction orthogonal to the first direction Z and the second direction X is referred to as the "third direction Y".

[0022] In the present specification, the term “orthogonal directions” does not mean orthogonal in a strict sense, but includes, for example, orthogonal to the extent that the effects of the present invention are achieved.

[0023] <Implementation method 1>

[0024] A connection system A according to exemplary embodiment 1 of the present invention will be described. Figure 1 and Figure 2 It is an overall perspective view of the connection system A according to the first embodiment. Figure 3 It is a perspective view showing a cross section of the coupling device 100 according to the first embodiment. Figure 4 It is a cross-sectional view of the coupling device 100 according to the first embodiment. Figure 1 It is an overall perspective view of the connection system A in a state where the first component 10 and the second component 20 are connected. Figure 2 1 is an overall perspective view of the connection system A in a state where the first component 10 and the second component 20 are separated.

[0025] like Figures 1 to 4As shown, the connection system A includes a connection device 100 and a plurality of second members 20. In the first embodiment, the connection device 100 that can be connected to four second members 20 is described, but the connection device 100 only needs to be connected to at least one second member 20.

[0026] The four second components 20 each include a second cylinder 21. The second cylinder 21 is, for example, a cylindrical shape extending along the first direction Z. The second cylinder 21 includes a second flow path 22. Specifically, the second flow path 22 is disposed inside the second cylinder 21. The second flow path 22 extends along the first direction Z. Figure 1 and Figure 2 In FIG. 2 , only two second components 20 are shown.

[0027] The coupling device 100 includes a first member 10 and four coupling portions 50. The first member 10 includes a first flow path 11, four mounting portions 12, and a first member main body 13.

[0028] The first component body 13 has four first openings 14. The four first openings 14 are respectively connected to the first flow path 11. Specifically, the shape of the first component body 13 is, for example, a rectangular parallelepiped. The first flow path 11 is arranged inside the first component body 13. The four first openings 14 are arranged on a surface of the first component body 13 on the opposite side of the first direction Z. The four mounting portions 12 are respectively arranged on the peripheral portions of the four first openings 14.

[0029] In the connection system A of this embodiment, when the first member 10 and the four second members 20 are connected, the fluid flows from the four second flow paths 22 to the first flow path 11. As the fluid, for example, antifreeze such as ethylene glycol aqueous solution or propylene glycol aqueous solution or pure water is used.

[0030] Next, the connection part 50 will be described in detail. The second member 20 is connected to the connection part 50. Specifically, the connection part 50 includes a first cylindrical part 60 and a placement part 70.

[0031] The first tube portion 60 includes a connection flow path 61 , an inclined portion 62 , and a front end portion 63 . The connection flow path 61 extends along the first direction Z. Specifically, the connection flow path 61 is disposed inside the front end portion 63 and inside the inclined portion 62 .

[0032] The first tube 60 further includes one end and the other end. Specifically, the front end 63 is disposed at one end of the first tube 60. The inclined portion 62 is disposed at the other end of the first tube 60. In other words, the front end 63 is disposed on the opposite side of the first direction Z than the inclined portion 62.

[0033] One end of the first cylindrical portion 60 is connected to the second cylindrical portion 21 of the second member 20. In other words, the front end portion 63 is connected to the second cylindrical portion 21 of the second member 20. The outer diameter LB of the front end portion 63 is substantially the same along the first direction Z. Specifically, the shape of the front end portion 63 is, for example, a cylindrical shape extending along the first direction Z.

[0034] The tip portion 63 may include a tapered portion 63 a whose inner diameter decreases along the first direction Z on the opposite side of the tip portion 63 in the first direction Z. As a result, the inner diameter decreases and an inclination toward the center is formed, so that the second tube portion 21 can be easily inserted into the first tube portion 60 .

[0035] The inclined portion 62 is, for example, a truncated cone-shaped cylindrical body extending along the first direction Z. Specifically, along the first direction Z, the outer diameter of the first cylindrical portion 60 and the diameter of the connecting flow path 61 are reduced. As a result, the flow path resistance of the connecting flow path 61 can be reduced, so that the fluid can flow smoothly along the first direction Z.

[0036] The arrangement portion 70 is arranged at the other end of the first tube 60. Specifically, the arrangement portion 70 is arranged at the inclined portion 62. The arrangement portion 70 protrudes outward in the radial direction RA of the first tube 60. The arrangement portion 70 is, for example, a plate-like body in an annular shape perpendicular to the first direction Z. The thickness of the plate-like body is, for example, a distance AA.

[0037] The maximum outer diameter LA of the arrangement portion 70 is smaller than the maximum outer diameter LB of the first cylindrical portion 60. As a result, it is possible to suppress the size of the radial direction RA of the coupling portion 50 from increasing.

[0038] Next, the mounting portion 12 will be described in detail. The arrangement portion 70 is mounted on the mounting portion 12. The mounting portion 12 includes a first plate 15 and a second plate 16.

[0039] The first plate 15 is, for example, a plate-shaped body perpendicular to the first direction Z. The first plate 15 is mounted on the first component body 13. The first plate 15 is fixed to the first component body 13 by screws or the like. Specifically, the first plate 15 is mounted in the opposite direction of the first direction Z of the first component body 13 at a predetermined interval. The predetermined interval is, for example, the same distance as the thickness AA of the configuration portion 70. In detail, the first portion of the configuration portion 70 is configured between the first component body 13 and the first plate 15. In other words, the first portion of the configuration portion 70 is clamped or supported by the first component body 13 and the first plate 15.

[0040] The second plate 16 is, for example, a plate-shaped body perpendicular to the first direction Z. The second plate 16 is mounted on the first component body 13. The second plate 16 is fixed to the first component body 13 by screws or the like. Specifically, the second plate 16 is mounted in the opposite direction of the first direction Z of the first component body 13 at a predetermined interval. The predetermined interval is, for example, the same distance as the thickness AA of the configuration portion 70. In detail, the second portion of the configuration portion 70 is configured between the first component body 13 and the second plate 16. In other words, the second portion of the configuration portion 70 is clamped or supported by the first component body 13 and the second plate 16.

[0041] The second portion of the configuration portion 70 is a portion different from the first portion of the configuration portion 70. As a result, the movement of the configuration portion 70 relative to the first component 10 is suppressed in the axial direction AX of the first cylindrical portion 60. In detail, the second portion of the configuration portion 70 and the first portion of the configuration portion 70 are opposed to each other with the first cylindrical portion 60 as the center. In more detail, the second portion of the configuration portion 70 and the first portion of the configuration portion 70 are opposed to each other in the third direction Y.

[0042] The first component main body 13 also has four hollow portions 17. The four hollow portions 17 are arranged on a surface of the first component main body 13 on the opposite side of the first direction Z. In detail, the four hollow portions 17 are arranged around the four first openings 14, respectively. The hollow portion 17 has a space that is recessed by a predetermined distance toward the first direction Z. The predetermined distance is, for example, the same distance as the thickness AA of the configuration portion 70. The shape of the hollow portion 17 is, for example, a cylindrical shape extending along the first direction Z. The diameter LC of the hollow portion 17 is larger than the maximum outer diameter LA of the configuration portion 70. As a result, the configuration portion 70 can move relative to the first component 10 in the radial direction RA of the first cylinder 60. In detail, the configuration portion 70 can move within the hollow portion 17 in the radial direction RA of the first cylinder 60.

[0043] Here, a connection method for connecting the connection device 100 and the four second components 20 is described. When connecting the connection device 100 and the four second components 20, the four second barrels 21 are inserted into the four first barrels 60. When the positions of the four first barrels 60 are offset relative to the positions of the four second barrels 21, the positions of the four first barrels 60 are moved relative to the first component 10 in the radial direction RA. The four first barrels 60 move independently relative to the first component 10. As a result, the four first barrels 60 and the four second barrels 21 can be properly connected. Therefore, poor connection can be suppressed and fluid leakage can be suppressed.

[0044] As mentioned above Figures 1 to 4As described above, in the first embodiment, even if the arrangement portion 70 is movable relative to the first member 10 , since the maximum outer diameter LA of the arrangement portion 70 is smaller than the maximum outer diameter LB of the first tube portion 60 , the radial size of the coupling portion 50 can be prevented from increasing.

[0045] Here, a manufacturing method of the coupling device 100 is described. The arrangement portion 70 of the coupling portion 50 is arranged in the hollow portion 17. The first plate 15 is fixed to the first component body portion 13 by screws or the like. The second plate 16 is fixed to the first component body portion 13 by screws or the like. As a result, the coupling device 100 of the present embodiment can be easily manufactured simply by fixing the first plate 15 and the second plate 16 to the first component body portion 13.

[0046] Next, refer to Figure 4 , the connection device 100 is described in detail. Figure 4 As shown, a first sealing member 80 is disposed between the disposition portion 70 and the mounting portion 12 .

[0047] The first sealing member 80 is disposed between the configuration portion 70 and the mounting portion 12 in the axial direction AX. Specifically, the first sealing member 80 is disposed in the first direction Z of the configuration portion 70. The shape of the first sealing member 80 is, for example, an annular shape. The material of the first sealing member 80 is, for example, rubber. As a result, leakage of the fluid from between the configuration portion 70 and the mounting portion 12 can be suppressed.

[0048] In more detail, the size of the diameter LD of the first opening 14 is greater than or equal to the size of the diameter LE of the opening of the configuration portion 70. As a result, when the first cylindrical portion 60 moves in the radial direction RA, the pressure loss caused by the opening of the configuration portion 70 and the first component main body 13 being opposed can be suppressed. In addition, the configuration portion 70 includes a groove portion 70a for arranging the first sealing member 80. The distance from the inner end of the groove portion 70a to the inner end of the configuration portion 70 is more than half of the difference between the diameter LC of the cavity 17 and the maximum outer diameter LA of the configuration portion 70. As a result, even if the configuration portion 70 moves in the mounting portion 12, it is possible to suppress the first sealing member 80 from being exposed at the first opening 14.

[0049] Furthermore, grease may be arranged between the configuration portion 70 and the mounting portion 12. Specifically, grease is applied to at least one of the surface of the configuration portion 70 and the surface of the mounting portion 12. As a result, the configuration portion 70 can be easily moved by sliding relative to the first component 10 in the radial direction RA of the first cylindrical portion 60. The grease is, for example, a fluorine-based grease. As a result, in addition to the grease being difficult to flow in the fluid, the grease is also difficult to dissolve relative to the fluid.

[0050] In more detail, the first barrel 60 also has a recess 64. The recess 64 is recessed from the outer peripheral surface of the first barrel 60 toward the inner side of the radial direction RA. When, for example, observed from the first direction, the recess 64 is annular. The recess 64 is arranged in the opposite direction of the first direction Z of the configuration portion 70. The first plate 15 and the second plate 16 are arranged inside the recess 64. As a result, in the axial direction AX of the first barrel 60, the movement of the configuration portion 70 relative to the first component 10 is suppressed. In addition, even if the maximum outer diameter LA of the configuration portion 70 is smaller than the maximum outer diameter LB of the first barrel 60, the amplitude that the connecting portion 50 can move relative to the first component 10 can be increased in the radial direction RA.

[0051] The first tube portion 60 further includes a protrusion 65. The protrusion 65 protrudes inward in the radial direction RA from the inner circumferential surface of the first tube portion 60. The protrusion 65 is arranged on the inner circumferential surface of the front end portion 63. Specifically, the protrusion 65 is arranged on the first direction Z side of the front end portion 63. When viewed from the first direction Z, for example, the shape of the protrusion 65 is an annular shape.

[0052] The coupling portion 50 also includes an elastic component 51, a valve portion 52 and a connecting mechanism 59. The connecting mechanism 59 is arranged along the first direction Z at the center of the first barrel 60. The valve portion 52 is arranged on the opposite direction side of the first direction Z of the elastic component 51. The first direction Z side of the elastic component 51 is fixed to the opposite direction side of the first direction Z of the protrusion 65. When the first barrel 60 and the second barrel 21 are not connected, the valve portion 52 pushed out to the opposite direction side of the first direction Z by the elastic component 51 contacts the connecting mechanism 59, thereby suppressing the leakage of fluid to the outside. In addition, when the first barrel 60 and the second barrel 21 are connected, the second barrel 21 faces the opposite direction side of the first direction Z of the valve portion 52, and by moving the valve portion 52 along the first direction Z, the fluid can be circulated between the connecting mechanism 59 and the valve portion 52. By arranging the protrusion 65 at the front end 63, the displacement or falling off of the elastic component 51 when the valve portion 52 moves can be suppressed.

[0053] The valve portion 52 is an annular body. A second sealing member 81 is disposed on the radial RA inner side of the valve portion 52. The shape of the second sealing member 81 is, for example, an annular shape. The material of the second sealing member 81 is, for example, rubber. As a result, it is possible to suppress leakage of fluid from between the connection mechanism 59 and the valve portion 52 when the first cylinder 60 and the second cylinder 21 are not connected.

[0054] The second sealing member 81 is fixed to the valve portion 52 by an adhesive. As a result, it is possible to prevent the second sealing member 81 from falling off from the valve portion 52 when an external force is applied to the second sealing member 81. In addition, the adhesive is, for example, an epoxy-based adhesive, which can prevent the generation of outgassing. As a result, it is possible to prevent the shrinkage of the cured adhesive, and it is possible to further prevent the second sealing member 81 from falling off from the valve portion 52.

[0055] <Implementation method 2>

[0056] A connection system B according to an exemplary embodiment 2 of the present invention will be described. Figure 5 It is an overall perspective view of the connection system B according to the second embodiment. Figure 6 2 is a cross-sectional view of the coupling device 200 according to Embodiment 2. Figure 5 and Figure 6 1 is a perspective view of the connection system B in a state where the first component 110 and the second component 120 are connected.

[0057] like Figure 5 and Figure 6 As shown, the coupling system B includes a coupling device 200 , a first pump device 310 , and a second pump device 320 .

[0058] The first pump device 310 and the second pump device 320 each include two second components 120 . In other words, the coupling system B includes four second components 120 .

[0059] The four second members 120 each include a second tube 121. The second tube 121 is, for example, a polygonal tube extending along the first direction Z. The second tube 121 includes a second flow path 122. Specifically, the second flow path 122 is disposed inside the second tube 121. The second flow path 122 extends along the first direction Z.

[0060] The coupling device 100 includes a first member 210 and four coupling portions 150. The first member 210 includes a first flow path 111, four mounting portions 112, and a first member body portion 113.

[0061] The first component body 113 has four first openings 114. The four first openings 114 are respectively connected to the first flow path 111. Specifically, the shape of the first component body 113 is, for example, a rectangular parallelepiped. The first flow path 111 is arranged inside the first component body 113. The four first openings 114 are arranged on a surface of the first component body 113 on the opposite side of the first direction Z. The four mounting portions 112 are respectively arranged on the peripheral portions of the four first openings 114.

[0062] In the connection system B of the second embodiment, when the first component 110 of the connection device 200 and the two second components 120 of the first pump device 310 are connected, the fluid flows from one second flow path 122 to the first flow path 111 and from the first flow path 111 to the other second flow path 122.

[0063] In the connection system B of the second embodiment, when the first component 110 of the connection device 200 and the two second components 120 of the second pump device 320 are connected, the fluid flows from the second flow path 122 on one side to the first flow path 111, and flows from the first flow path 111 to the second flow path 122 on the other side.

[0064] Next, the connection part 150 will be described in detail. The second member 20 is connected to the connection part 150. Specifically, the connection part 150 includes a first cylindrical part 160 and a placement part 170.

[0065] The first cylindrical portion 160 includes a connecting flow path 161 , a front end portion 163 , and a step portion 162 . The connecting flow path 161 extends along the first direction Z. Specifically, the connecting flow path 161 is disposed inside the front end portion 63 and inside the step portion 162 .

[0066] The first tube 160 further includes one end and the other end. Specifically, the front end 163 is disposed at one end of the first tube 160. The step 162 is disposed at the other end of the first tube 160. In other words, the front end 163 is disposed on the opposite side of the first direction Z than the step 162.

[0067] A sealing member 181 and a sealing member 182 are disposed inside the radial direction RA of the front end portion 163. In other words, two sealing members 181 and 182 are disposed inside the radial direction RA of the front end portion 163. The shapes of the sealing members 181 and 182 are, for example, annular. The materials of the sealing members 181 and 182 are, for example, rubber. As a result, when the first barrel 160 and the second barrel 121 are connected, it is possible to suppress leakage of the fluid from the inner peripheral surface of the first barrel 160 and the outer peripheral surface of the second barrel 121.

[0068] The step portion 162 is, for example, a cylindrical body extending along the first direction Z. Specifically, the outer diameter of the step portion 162 is smaller than the outer diameter of the front end portion 163 .

[0069] One end of the first cylindrical portion 160 is connected to the second cylindrical portion 121 of the second member 120. In other words, the front end portion 163 is connected to the second cylindrical portion 121 of the second member 120. The outer diameter LB of the front end portion 163 is substantially the same along the first direction Z. Specifically, the shape of the front end portion 163 is, for example, a cylindrical shape extending along the first direction Z.

[0070] The arrangement portion 170 is arranged at the other end of the first tube portion 160. The arrangement portion 170 protrudes outward in the radial direction RA of the first tube portion 160. The arrangement portion 170 is, for example, a plate-like body in an annular shape perpendicular to the first direction Z. The thickness of the plate-like body is, for example, a distance AA.

[0071] The maximum outer diameter LA of the arrangement portion 170 is smaller than the maximum outer diameter LB of the first cylindrical portion 160. As a result, it is possible to suppress an increase in the radial direction RA of the coupling portion 50.

[0072] Next, refer to Figure 7 The mounting portion 112 will be described in detail. Figure 7 2 is a perspective view showing a cross section of the coupling device of the second embodiment. Figure 7 As shown, the arrangement portion 170 is mounted on the mounting portion 112. The mounting portion 112 includes a plurality of first plates 115 and a plurality of second plates 116.

[0073] The first plate 115 is, for example, a plate-shaped body perpendicular to the first direction Z. The first plate 115 is mounted on the first component body 113. The first plate 115 is fixed to the first component body 113 by screws or the like. Specifically, the first plate 115 is mounted in the opposite direction of the first direction Z of the first component body 113 at a predetermined interval. The predetermined interval is, for example, the same distance as the thickness AA of the configuration portion 170. In detail, the first portion of the configuration portion 170 is configured between the first component body 113 and the first plate 115. In other words, the first portion of the configuration portion 170 is clamped or supported by the first component body 113 and the first plate 115.

[0074] The second plate 116 is, for example, a plate-shaped body perpendicular to the first direction Z. The size of the second plate 116 is larger than that of the first plate 115. The second plate 116 corresponds to the four configuration portions 170. The second plate 116 is mounted on the first component main body 113. The second plate 116 is fixed to the first component main body 113 by screws or the like. Specifically, the second plate 116 is installed in the opposite direction of the first direction Z of the first component main body 113 at a predetermined interval. The predetermined interval is, for example, the same distance as the thickness AA of the configuration portion 170. In detail, the second portions of the four configuration portions 170 are arranged between the first component main body 113 and the second plate 116. In other words, the second portions of the four configuration portions 170 are clamped or supported by the first component main body 113 and the second plate 116.

[0075] In detail, the second plate 116 overlaps both the first component 110 and the other first components 110 in both the second direction X and the third direction Y. The four first plates 115 each cover half of the outer circumference of one first component 110, and the second plate 116 covers half of the outer circumference of the four first components 110. The first plate 115 and the second plate 116 are opposed to each other in a straight line portion in the third direction Y. For example, the lower end of the first plate 115 and the upper end of the second plate 116 are opposed, or the upper end of the first plate 115 and the lower end of the second plate 116 are opposed. Since the first plate 115 is inserted along the third direction Y, it is easy to arrange and can reduce misalignment.

[0076] The second portion of the configuration portion 170 is a portion different from the first portion of the configuration portion 170. As a result, the movement of the configuration portion 170 relative to the first component 110 is suppressed in the axial direction AX of the first cylinder 160. In detail, the second portion of the configuration portion 170 and the first portion of the configuration portion 170 are opposed to each other with the first cylinder 160 as the center. In more detail, the second portion of the configuration portion 170 and the first portion of the configuration portion 170 are opposed to each other in the third direction Y.

[0077] The first component main body 113 also has four hollow portions 117. The four hollow portions 117 are arranged on a surface of the first component main body 113 on the opposite side of the first direction Z. Specifically, the four hollow portions 117 are arranged around the four first openings 114, respectively. The hollow portion 117 has a space that is recessed by a predetermined distance toward the first direction Z. The predetermined distance is, for example, the same distance as the thickness AA of the configuration portion 170. The shape of the hollow portion 117 is, for example, a cylindrical shape extending along the first direction Z. The diameter LC of the hollow portion 117 is greater than the maximum outer diameter LA of the configuration portion 170. As a result, the configuration portion 170 can move relative to the first component 110 in the radial direction RA of the first cylinder 160. In detail, the configuration portion 170 can move within the hollow portion 117 in the radial direction RA of the first cylinder 160.

[0078] Here, a connection method for connecting the connection device 200 and the four second components 120 is described. When the connection device 200 and the first pump device 310 are connected, the two second barrels 121 are inserted into the two first barrels 160. When the positions of the two first barrels 160 are offset relative to the positions of the two second barrels 121, the positions of the two first barrels 160 are moved in the radial direction RA relative to the first component 110. The two first barrels 160 move independently relative to the first component 110. As a result, the two first barrels 160 and the two second barrels 121 can be properly connected. Therefore, poor connection can be suppressed and fluid leakage can be suppressed.

[0079] In addition, when connecting the coupling device 200 and the second pump device 320, the two second barrels 121 are inserted into the two first barrels 160. When the positions of the two first barrels 160 are offset relative to the positions of the two second barrels 121, the positions of the two first barrels 160 are moved relative to the first component 110 in the radial direction RA. The two first barrels 160 move independently relative to the first component 110. As a result, the two first barrels 160 and the two second barrels 121 can be properly connected. Therefore, poor connection can be suppressed, and fluid leakage can be suppressed.

[0080] As mentioned above Figures 5 to 7As described, in the second embodiment, even if the arrangement portion 170 is movable relative to the first member 110 , the maximum outer diameter LA of the arrangement portion 170 is smaller than the maximum outer diameter LB of the first tube portion 160 , thereby preventing the radial size of the coupling portion 150 from increasing.

[0081] Here, a method for manufacturing the coupling device 200 is described. The second plate 116 is fixed to the first component body 113 by screws or the like. The arrangement portion 170 of the coupling portion 150 is arranged in the cavity 117. The first plate 115 is fixed to the first component body 113 by screws or the like. As a result, the coupling device 200 of the present embodiment can be easily manufactured simply by fixing the first plate 115 and the second plate 116 to the first component body 113.

[0082] Next, refer to Figure 6 The coupling device 200 is described in detail. Figure 6 As shown, a first sealing member 180 is disposed between the disposition portion 170 and the mounting portion 112 .

[0083] The first sealing member 180 is disposed between the configuration portion 170 and the mounting portion 112 in the axial direction AX. Specifically, the first sealing member 180 is disposed in the first direction Z of the configuration portion 170. The shape of the first sealing member 180 is, for example, an annular shape. The material of the first sealing member 180 is, for example, rubber. As a result, leakage of the fluid from between the configuration portion 170 and the mounting portion 112 can be suppressed.

[0084] More specifically, the diameter LD of the first opening 114 is greater than or equal to the diameter LE of the opening of the arrangement portion 170. As a result, when the first cylinder 160 moves in the radial direction RA, pressure loss caused by the opening of the arrangement portion 170 facing the first member body 113 can be suppressed.

[0085] The first tube 160 further includes a protrusion 165. The protrusion 165 protrudes inward in the radial direction RA from the inner circumferential surface of the first tube 160. The protrusion 165 is arranged on the inner circumferential surface of the front end 163. Specifically, the protrusion 165 is arranged on the first direction Z side of the front end 163. When viewed from the first direction Z, for example, the shape of the protrusion 165 is an annular shape.

[0086] The second cylinder 121 includes an elastic member 123, a connection mechanism 124, and a protrusion 125 in addition to the second flow path 122. The protrusion 125 protrudes inward in the radial direction RA from the inner circumferential surface of the second cylinder 121. The first direction Z side of the elastic member 151 is fixed to the first direction Z side of the protrusion 125. The connection mechanism 124 is arranged along the first direction Z at the center of the second cylinder 121. The connection mechanism 124 is arranged on the first direction Z side of the elastic member 123.

[0087] When the first cylinder 160 and the second cylinder 121 are not connected, the connection mechanism 124 pushed out to the first direction Z by the elastic member 123 contacts the front end of the second cylinder 121, thereby preventing the fluid from leaking to the outside. In addition, when the first cylinder 160 and the second cylinder 121 are connected, the first cylinder 160 faces the connection mechanism 124 on the opposite side of the first direction Z, and by moving the connection mechanism 124 in the opposite direction of the first direction Z, the fluid can flow between the connection mechanism 124 and the front end of the second cylinder 121.

[0088] The coupling portion 150 also includes an elastic member 151, a valve portion 152, a coupling mechanism 159 and a check valve 190. The coupling mechanism 159 is arranged along the first direction Z at the center of the first cylinder 160. The valve portion 152 is arranged on the opposite direction side of the first direction Z of the elastic member 151. The first direction Z side of the elastic member 151 is fixed to the opposite direction side of the first direction Z of the protrusion 165. When the first cylinder 160 and the second cylinder 121 are not connected, the valve portion 152 pushed out by the elastic member 151 to the opposite direction side of the first direction Z contacts the coupling mechanism 159, thereby suppressing the leakage of the fluid to the outside. In addition, when the first cylinder 160 and the second cylinder 121 are connected, the second cylinder 121 faces the valve portion 152 on the opposite direction side of the first direction Z, and by moving the valve portion 152 to the first direction Z, the fluid can be circulated between the coupling mechanism 159 and the valve portion 152.

[0089] The valve portion 152 is an annular body. A second sealing member 181 is disposed on the radially inner side of the valve portion 152 in the radial direction RA. The shape of the second sealing member 181 is, for example, a circular ring shape. The material of the second sealing member 181 is, for example, rubber. As a result, when the first cylinder 160 and the second cylinder 121 are not connected, leakage of the fluid from between the connection mechanism 159 and the valve portion 152 can be suppressed.

[0090] The second sealing member 181 is fixed to the valve portion 152 by an adhesive. As a result, it is possible to suppress the second sealing member 181 from being separated from the valve portion 152.

[0091] The check valve 190 is disposed on the first direction Z side of the connection mechanism 159 . The check valve 190 allows the fluid to flow from the second flow path 122 to the connection flow path 161 , but prevents the fluid from flowing from the connection flow path 161 to the second flow path 122 .

[0092] Specifically, the check valve 190 includes a hinge 191, a first semicircular plate 192, and a second semicircular plate 193. The hinge 191 is arranged on the first direction Z side of the connection mechanism 159. The first semicircular plate 192 and the second semicircular plate 193 rotate around the rotation axis along the second direction X through the hinge 191. The first semicircular plate 192 and the second semicircular plate 193 open the connection flow path 161 in a state of being inclined relative to the first direction Z. On the other hand, the first semicircular plate 192 and the second semicircular plate 193 block the connection flow path 161 in a state of being orthogonal to the first direction Z. In addition, in the present embodiment 2, the connection part 150 that allows the fluid to flow from the second flow path 122 to the connection flow path 161 is described, but the check valve 190 can also be arranged on the connection part 150 that allows the fluid to flow from the connection flow path 161 to the second flow path 122. The check valve 190 can also further include a first buffer material 190a and a second buffer material 190b. The first buffer material 190a is disposed on the surface of the first semicircular plate 192 on the side opposite to the first direction Z. The second buffer material 190b is disposed on the surface of the second semicircular plate 193 on the side opposite to the first direction Z. As a result, the first semicircular plate 192 and the second semicircular plate 193 are in contact with the protrusion 165 when blocking the connecting flow path 161, but the impact with the protrusion 165 can be suppressed.

[0093] The first cylinder 160 also includes a cutout 199. The cutout 199 is disposed on the outer peripheral surface of the first cylinder 60 on the second direction X side. In detail, the cutout 199 is disposed on the rotation axis of the check valve 190. As a result, by disposing the cutout 199 on the second direction X, the first semicircular plate 192 and the second semicircular plate 193 can be suppressed from rotating due to gravity. In addition, the cutout 199 can also be disposed on the outer peripheral surface of the first cylinder 60 on the direction side opposite to the second direction X.

[0094] <Implementation method 3>

[0095] A connection system C according to an exemplary embodiment 3 of the present invention will be described. Figure 8 : is a cross-sectional view of the connection system C of the present embodiment 3. Figure 8 As shown, the coupling system C includes a coupling device 300 .

[0096] The coupling device 300 includes the first member 10 , a coupling portion 50 , an elastic member 410 , and a main body 420 . The main body 420 surrounds the first member 10 .

[0097] The material of the elastic member 410 is, for example, a spring or rubber. The elastic member 410 is disposed between the first member 10 and the main body 420. Specifically, the elastic member 410 is disposed between a surface on the one direction Z side of the first member 10 and a surface on the opposite direction side of the one direction Z of the main body 420. As a result, the first member 10 can move relative to the main body 420 in the axial direction AX of the first cylinder 60.

[0098] As mentioned above Figure 8 As explained above, in the present embodiment 3, when the coupling device 300 and the second component 20 are connected, the second cylinder 21 is inserted into the first cylinder 60. When the position of the first cylinder 60 is offset relative to the position of the second cylinder 21, the position of the first cylinder 60 moves relative to the first component 10 in the radial direction RA, and the position of the first cylinder 60 moves relative to the main body 420 in the axial direction AX. As a result, the first cylinder 60 and the second cylinder 21 can be properly connected. Therefore, poor connection can be suppressed, and fluid leakage can be suppressed.

[0099] Please refer to the attached Figure 1 The embodiments of the present invention are described. However, the above embodiments are merely examples of the present invention, and the present invention is not limited to the above embodiments, and can be implemented in various ways without departing from the main purpose thereof. For ease of understanding, the drawings schematically illustrate each component as the main body, and the thickness, length, number, etc. of each component illustrated in the drawings are different from the actual ones due to the convenience of making the drawings. In addition, the material, shape, size, etc. of each component shown in the above embodiments are only examples, and are not particularly limited. Various changes can be made within the scope of the effect of the present invention. The structure of the embodiments can also be appropriately changed within the scope of the technical idea of ​​the present invention. In addition, the embodiments can also be implemented in combination within the possible scope.

[0100] In addition, the present technology may also adopt the following structures.

[0101] (1) A coupling device comprising: a first component having a first flow path and a mounting portion; and a coupling portion, the coupling portion comprising: a first barrel having an end portion connected to a second barrel portion of a second component having a second flow path; and a configuration portion, which is configured at the other end portion of the first barrel portion and is mounted on the mounting portion, wherein the configuration portion is restrained from moving relative to the first component in an axial direction of the first barrel portion, and is movable relative to the first component in a radial direction of the first barrel portion, and wherein a maximum outer diameter of the configuration portion is smaller than a maximum outer diameter of the first barrel portion.

[0102] (2) The coupling device according to (1), wherein the arrangement portion protrudes radially outward of the first cylindrical portion, and a first sealing member is arranged between the arrangement portion and the mounting portion.

[0103] (3) A connecting device according to (1) or (2), wherein the mounting portion comprises: a first plate mounted on a first component body, wherein the first component body comprises a first opening connected to the first flow path; and a second plate mounted on the first component body, wherein the first portion of the configuration portion is disposed between the first component body and the first plate, and the second portion of the configuration portion is disposed between the first component body and the second plate, and the second portion is a portion different from the first portion.

[0104] (4) The coupling device according to (3), wherein a diameter of the first opening is equal to or larger than a diameter of an opening of the arrangement portion.

[0105] (5) A connecting device according to any one of (1) to (4), wherein the first barrel portion comprises: a connecting flow path extending along a predetermined direction; and an inclined portion which reduces the outer diameter of the first barrel portion and the diameter of the connecting flow path along the predetermined direction, wherein the predetermined direction indicates a direction from the one end portion of the first barrel portion toward the other end portion of the first barrel portion.

[0106] (6) The coupling device according to (5), wherein the first cylindrical portion includes a recessed portion recessed radially inward from an outer peripheral surface of the first cylindrical portion, and the recessed portion is arranged in a direction opposite to the predetermined direction of the arrangement portion.

[0107] (7) A connecting device according to any one of (1) to (6), wherein the first barrel portion further comprises: a front end portion, which is arranged on the opposite side of the predetermined direction than the inclined portion; and a protrusion, which protrudes radially inward from the inner circumferential surface of the first barrel portion, and the connecting portion further comprises: an elastic component; and a valve portion, which is arranged on the opposite side of the predetermined direction of the elastic component, the outer diameter of the front end portion is substantially the same along the predetermined direction, the protrusion is arranged on the inner circumferential surface of the front end portion, and the predetermined direction side of the elastic component is fixed to the opposite side of the predetermined direction of the protrusion.

[0108] (8) The coupling device according to (7), wherein the valve portion is an annular body, and a second sealing member is arranged radially inside the valve portion.

[0109] (9) The coupling device according to (8), wherein the second sealing member is fixed to the valve portion by an adhesive.

[0110] Explanation of symbols

[0111] 10—first component, 12—installation portion, 50—connection portion, 60—first cylinder portion, 70—configuration portion, 100—connection device.

Claims

1. A connecting device, characterized in that: have: A first component including a first flow path and a mounting portion; and Connection part, The connecting portion comprises: a first cylindrical portion having one end portion connected to a second cylindrical portion of a second member having a second flow path; and a configuration portion, which is configured at the other end of the first cylindrical portion and mounted on the mounting portion, In the axial direction of the first cylindrical portion, the movement of the arrangement portion relative to the first member is suppressed. In the radial direction of the first cylindrical portion, the arrangement portion is movable relative to the first member. The maximum outer diameter of the arrangement portion is smaller than the maximum outer diameter of the first cylindrical portion.

2. The coupling device according to claim 1, characterized in that: The configuration portion protrudes toward the radially outer side of the first cylindrical portion, A first sealing member is disposed between the disposition portion and the mounting portion.

3. The coupling device according to claim 1, characterized in that: The mounting portion comprises: a first plate mounted on a first component body, wherein the first component body has a first opening communicating with the first flow path; and a second plate mounted on the first component body, The first portion of the arrangement portion is arranged between the first component body and the first plate. The second portion of the arrangement portion is arranged between the first component body and the second plate, The second portion is a portion different from the first portion.

4. The coupling device according to claim 3, characterized in that: The diameter of the first opening is equal to or larger than the diameter of the opening of the arrangement portion.

5. The coupling device according to claim 1, characterized in that: The first cylinder portion comprises: a connecting flow path extending along a predetermined direction; and an inclined portion that reduces the outer diameter of the first cylindrical portion and the diameter of the connecting flow path along the predetermined direction, The predetermined direction indicates a direction from the one end portion of the first cylindrical portion toward the other end portion of the first cylindrical portion.

6. The coupling device according to claim 5, characterized in that: The first tube portion includes a recessed portion recessed radially inward from an outer peripheral surface of the first tube portion. The recessed portion is arranged in a direction opposite to the predetermined direction of the arrangement portion.

7. The coupling device according to claim 5, characterized in that: The first barrel portion further comprises: a front end portion disposed on the opposite side of the predetermined direction from the inclined portion; and a protrusion protruding radially inward from the inner circumferential surface of the first cylindrical portion, The connecting portion further comprises: elastic member; and a valve portion disposed on the opposite side of the predetermined direction of the elastic member, The outer diameter of the front end portion is substantially the same along the predetermined direction, The protrusion is arranged on the inner peripheral surface of the front end portion, The predetermined direction side of the elastic member is fixed to the opposite direction side of the predetermined direction of the protrusion.

8. The coupling device according to claim 7, characterized in that: The valve portion is an annular body, A second sealing member is arranged radially inside the valve portion.

9. The coupling device according to claim 8, characterized in that The second sealing member is fixed to the valve portion by an adhesive.

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