JP2013002502A - Pipe joint and pipe joint connection system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pipe joint and a pipe joint connection system that prevent trouble caused by proceeding the connection between a first joint and a second joint in a state that the first joint and the second joint are displaced from each other.SOLUTION: The pipe joint connection system 90 includes a pipe joint 10 and a moving device 91. The pipe joint has: a male member 20 having male joints 21; a female member 30 having female joints 31 connected with the male joints 21 by inserting the male joints 21 thereinto; each guide pin 23 provided on the male member 20; and each guide member 33 provided on the female member 30 and having a guide hole 34 into which the guide pin 23 is insertable. The moving device is configured to move the male member 20. A piezoelectric element 60 is arranged at the tip 23a of the guide pin 23. The moving device 91 includes a control part 93 which receives a voltage signal sent from the piezoelectric element 60 and stops the movement of the male member 20 toward the female member 30.

Description

  The present invention relates to a pipe joint that is connected to each other by inserting a male joint into a female joint so that fluid can flow therethrough, and a male joint using a device that shortens the distance between the male joint and the female joint. The present invention relates to a pipe joint connection system for connecting a female joint and a female joint.

  2. Description of the Related Art Conventionally, pipe joints that are connected to each other by inserting a male joint into a female joint so that fluid can flow are known. Moreover, regarding such a pipe joint, Patent Document 1 discloses a pipe joint connection system that connects a female joint and a male joint using a moving device that moves the male joint along the insertion direction. .

  A pipe joint connection system described in Patent Document 1 includes a male member in which a plurality of male joints are fixed to a flat male side base, and a plurality of female joints corresponding to each male joint are flat female. A female member fixed to the side base and a moving device for moving the male side base along the insertion direction are provided. On the male base body, guide pins extending in the insertion direction in a tapered shape are projected at predetermined positions, and the male joints are arranged with reference to the guide pins. On the other hand, a guide member having a guide hole into which the guide pin is inserted is disposed on the female side base, and each female joint is arranged with reference to the guide hole.

  When inserting the male joint into the female joint, first, the female side base and the male side base are arranged so that the guide hole and the guide pin face each other in the insertion direction. And if a male side base | substrate is moved to an insertion direction using a moving apparatus, a male pin will be guided to each female type joint by inserting a guide pin in a guide hole. Thus, each male joint is inserted into a corresponding female joint.

  Further, the pipe joint connection system is provided with detection means for detecting that the connection between each female joint and each male joint is completed. The detection means includes an air discharge port formed in the male base, an air receiving seat formed in the female base, and a pressure sensor that detects the pressure in the pipe that supplies air to the air discharge port. ing. The air discharge port is disposed at a predetermined position with reference to the guide pin, and the air receiving seat is disposed at a position corresponding to the air discharge port with reference to the guide member. When the male joint is inserted into the female joint, the pressure in the pipe rises due to the air outlet being blocked by the air receiving seat, and the measured value of the pressure sensor exceeds the predetermined value, so that the female mold It is detected that the connection between the joint and the male joint has been completed.

JP-A-5-256739

  By the way, in the pipe joint connection system having the above-described configuration, since the guide pin is formed to be tapered, the guide pin is easily inserted into the guide hole. Therefore, the male joint can be inserted into the female joint even if a slight displacement occurs between the female joint and the male joint.

  However, there may be a large displacement between the female joint and the male joint such that the end of the guide pin comes into contact with the end face of the guide member. Although the detection means described above can detect that the connection between the female joint and the male joint has been completed, it detects a positional shift that has occurred between the female joint and the male joint. It is difficult. Therefore, even if the guide pin is in contact with the end face of the guide member, the moving device continues to be driven, and the guide pin may be deformed or damaged, as well as the female joint and the male joint. May be deformed or damaged.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a pipe capable of suppressing problems caused by the advancement of the connection between the first joint and the second joint in a misaligned state. It is to provide a joint and a pipe joint connection system.

  The pipe joint according to claim 1 is provided in the first member having the first joint, the second member having the second joint, and the first member, and the first joint with respect to the second joint. A guide pin that extends along a direction in which the second joint is connected, and a guide member that is provided on the second member and has a guide hole that extends along the direction in which the second joint is connected to the first joint. In the pipe joint in which the first joint and the second joint can be connected by inserting the guide pin into the guide hole, at least one of the guide pin and the guide member has a tip of the one The gist of the invention is that a signal output unit is provided for outputting a signal when the unit and another member come into contact with each other.

  According to the pipe joint of the first aspect, when the first joint and the second joint are connected, at least one of the distal end portion of the guide pin and the distal end portion of the guide member based on a signal from the signal output portion. It can be detected whether or not is in contact with another member. Therefore, even when at least one of the guide hole and the guide pin cannot be visually recognized, it is possible to detect that a positional deviation has occurred between the first joint and the second joint. As a result, even when at least one of the guide hole and the guide pin is not visible, it is possible to stop the connecting operation between the first joint and the second joint when a positional shift is detected between them. . Therefore, it is possible to suppress problems caused by the positional deviation between the first joint and the second joint.

  The gist of the pipe joint according to claim 2 is that either the first joint or the second joint can be inserted into the other by inserting the guide pin into the guide hole.

  According to the pipe joint according to claim 2, when there is a displacement between the first joint and the second joint, the distal end surface of the guide pin before the second joint is inserted into the first joint. And the tip surface of the guide member come into contact with each other. That is, even if a positional deviation occurs between the first joint and the male joint, it is possible to suppress contact between the female joint and the male joint. As a result, the female joint and the male joint can be protected preferentially.

The gist of the pipe joint according to claim 3 is that the signal output unit is a piezoelectric element.
According to the pipe joint according to claim 3, when at least one of the distal end portion of the guide pin and the distal end portion of the guide member is in contact with the other member, a voltage signal corresponding to the contraction amount of the piezoelectric element is output. . By utilizing such a piezoelectric effect, it is possible to detect that at least one of the distal end portion of the guide pin and the distal end portion of the guide member is in contact with another member without supplying driving power to the signal output portion. it can.

The gist of the pipe joint according to claim 4 is that at least one of the guide pin and the guide member is supported by an elastic member.
According to the pipe joint of the fourth aspect, since at least one of the guide pin and the guide member is supported by the elastic member, the impact generated when the guide pin and the guide member come into contact can be reduced. Therefore, deformation and breakage of the guide pin and the guide member can be suppressed.

  The pipe joint connection system according to claim 5, wherein a first member having a first joint, a second member having a second joint, and the first member with respect to the second joint are provided on the first member. A guide pin extending along a direction in which the joint is connected; and a guide member provided on the second member and having a guide hole extending along the direction in which the second joint is connected to the first joint. A pipe joint that allows the first joint and the second joint to be connected by inserting the guide pin into the guide hole, and at least one of the first member and the second member is connected to the first member. And a moving device that moves along a direction in which the second member is connected to at least one of the distal end portion of the guide pin and the distal end portion of the guide member. Other parts A signal output unit configured to output a signal upon contact with the signal, and the moving device includes a control unit that receives the signal output from the signal output unit and stops the movement along the connecting direction. The gist.

  According to the pipe joint connection system of the fifth aspect, the moving device to which the signal from the signal output unit is input stops these movements along the direction in which the first joint and the second joint are connected. Therefore, it is possible to suppress problems caused by the connection being advanced in a state where the first joint and the second joint are displaced.

The perspective view which shows the perspective structure of the male member which comprises the pipe joint which concerns on this invention, and a female member, Comprising: The figure which showed the non-connecting state. FIG. 2 is a cross-sectional view showing a cross-sectional structure taken along line 2-2 in FIG. 1 and showing a cross-sectional structure of a left half of a male member and a female member. It is sectional drawing which shows the cross-section of a male member and a female member in a connection state, Comprising: The figure which showed the cross-section of the left half of a male member and a female member. The figure which shows schematic structure of the pipe joint connection system which concerns on this invention. The schematic diagram which shows the state which the guide pin contacted the guide member typically.

Hereinafter, an embodiment of a pipe joint and a pipe joint connecting system according to the present invention will be described with reference to FIGS.
(Overall configuration of pipe fitting)
First, the overall configuration of the pipe joint 10 will be described with reference to FIG. As shown in FIG. 1, the pipe joint 10 includes a male member 20 as a first member having a male joint 21 as a first joint, and the male joint 21 is inserted along the axial direction A. And a female member 30 as a second member having a female joint 31 as a second joint connected to the male joint 21.

  Two male joints 21 are fixed at predetermined intervals along the longitudinal direction of the rectangular flat male side base 22 constituting the male member 20, and the two male joints 21 are elongated. Two guide pins 23 having a substantially cylindrical shape are erected at positions sandwiched in the direction. The male base body 22 is provided with a square cylindrical protective wall 24 so as to surround the male joint 21 and the guide pin 23. In addition, through holes (not shown) are formed in the respective corners of the male base body 22, and bolts 25 used when attaching the male member 20 to, for example, a bracket or the like are screwed into the screw holes from the back surface 22b. It is inserted so that a part may protrude.

  On the other hand, in the rectangular flat female side base 32 constituting the female member 30, two female joints 31 are fixed at the same interval as the male joint 21 along the longitudinal direction thereof. Two guide members 33 having a substantially cylindrical shape are erected at a position where the female joint 31 is sandwiched in the longitudinal direction. The guide member 33 is erected at a position corresponding to each of the two guide pins 23 formed in the male member 20, and a guide hole 34 through which the guide pin 23 can be inserted is formed. Further, through holes (not shown) are formed in the respective corners of the female side base 32, and bolts 35 used when attaching the female member 30 to, for example, a bracket or the like are screwed into the through holes from the back surface 32b. It is inserted so that a part may protrude.

When the male member 20 and the female member 30 are connected, the male member 20 and the female member 30 face each other in the axial direction A so that each guide pin 23 enters the guide hole 34 of the guide member 33. To do. Next, when the male member 20 and the female member 30 are brought close to each other, each male joint 21 is inserted into the female joint 31 while being guided by the guide pin 23 that has entered the guide hole 34. In the connected state, the male joint 21 and the female joint 31 are surrounded by the defense wall 24.
(Male member 20)
As shown in FIG. 2, the male joint 21 is disposed on the male base body 22 so as to pass through a multistage cylindrical mounting hole 41 whose diameter is reduced on the back surface 22b side by the mounting seat 22c. . The male joint 21 includes a male connector 42 to which an external pipe is connected and a male cylinder 43 supported by the male connector 42.

  The male connection body 42 has a multistage cylindrical shape extending along the axial direction A with a flow path 44 formed on the inner side, and is arranged so that its central axis coincides with the central axis of the mounting hole 41. Yes. The male connection body 42 is disposed in the attachment hole 41 and engages with the attachment seat 22c. The male connection body 42 is formed with an outer diameter smaller than that of the engagement portion 45 and is formed from the back surface 22b of the male base body 22. The projecting connecting portion 46 is integrally formed.

  The male side cylinder 43 has a substantially cylindrical shape having an outer diameter larger than the inner diameter of the connection part 46 of the male side connection body 42 and smaller than the inner diameter of the engagement part 45 and extending along the axial direction A. Yes. The male cylinder 43 is disposed with one end loosely fitted inside the engaging portion 45 of the male connector 42 so that the central axis thereof coincides with the central axis of the mounting hole 41. A channel 47 communicating with the channel 44 of the male connector 42 is formed inside.

  At the lower end of the male side cylinder 43, a flange part 43 a having an outer diameter substantially equal to the outer diameter of the engaging part 45 of the male side connection body 42 and disposed in the mounting hole 41 is formed. . The male side cylinder 43 is supported by the male side connection body 42 when the collar portion 43 a abuts on the engagement portion 45 of the male side connection body 42. An annular seal member 49 is disposed in a gap formed between the outer peripheral surface of the male cylinder 43 and the inner peripheral surface of the engagement portion 45 of the male connector 42 so that the internal fluid does not leak through the gap. Has been.

  The male joint 21 is a fixing plate that covers the flange 43a in a state where the engagement portion 45 of the male connector 42 and the flange 43a of the male cylinder 43 are disposed in the mounting hole 41. 50 is fixed to the male base 22 by being screwed onto the surface 22a of the male base 22 with screws (not shown).

  On the other hand, on the upper end of the male side cylinder 43, a male side pressing portion 51 is formed which is inserted into the female joint 31 and presses a later-described female side valve body 84 with a pressing surface 51a. In the male side pressing part 51, the male side valve seat 53 has a male side valve hole 53 having a diameter smaller than the flow path 47 of the male side cylindrical body 43 opened at the pressing surface 51a, and the entire circumference of the outer peripheral surface. An annular seal member 54 is mounted in the groove portion that is recessed over.

  In the male side cylinder 43, a male side valve element 55 is provided that can slide along the axial direction A in the male side cylinder 43. The male side valve body 55 has a substantially covered cylindrical shape, and is arranged so that its central axis coincides with the central axis of the male side cylindrical body 43, and its lower end is supported by the male side connecting body 42. The coil spring 56 is biased toward the male valve hole 53.

  The male side valve body 55 has a base end portion 55a having an outer diameter slightly smaller than the inner diameter of the male side cylindrical body 43, and an outer diameter smaller than the base end portion 55a and blocks the male side valve hole 53. The tip portion 55b is integrally formed. The male valve body 55 has a male end valve hole 53 at a position where the end surface of the distal end portion 55b is flush with the pressing surface 51a of the male side pressing portion 51 by the base end portion 55a coming into contact with the male side valve seat 52. Displacement to the side is restricted. On the peripheral wall of the base end portion 55a, when the male side valve body 55 is displaced toward the male side connection body 42 against the biasing force of the coil spring 56, the male side valve hole 53 and the male side connection body 42 A communication hole 55c for communicating with the flow path 44 is formed. An annular seal member 57 is attached to the groove formed on the outer peripheral surface of the distal end portion 55b to prevent the fluid in the male joint 21 from leaking through the gap between the male valve body 55 and the male pressing portion 51. Has been.

  In addition, a guide pin 23 is disposed on the left side of the male joint 21 in the male base body 22. The guide pin 23 has a substantially cylindrical shape extending along the axial direction A, and a piezoelectric element 60 serving as a signal output unit is fixed to the end surface of the distal end portion 23a, which is a portion gradually reduced in diameter upward. Has been. Electrical wiring (not shown) is connected to the piezoelectric element 60 through the inside of the guide pin 23.

  Of the guide pin 23, a base end portion 23 b that is a portion whose diameter is increased downward is disposed in the case body 61. The case body 61 has a substantially cylindrical shape extending along the axial direction A and accommodates the base end portion 23 b of the guide pin 23. The case body 61 has an inner diameter that allows the base end portion 23b of the guide pin 23 to slide along the axial direction A. The case body 61 is fitted into a recessed portion 62 that is recessed in the surface 22a of the male-side base member 22 so as to be male. The side base 22 is detachably fixed. In the case body 61, the opening at the top of the case body 61 is narrowed, and the base end portion 23 b of the guide pin 23 is in contact with the top from the inside of the case body 61, whereby the case body 61 is separated from the male base body 22. The displacement of the guide pin 23 is restricted.

In the case body 61, a coil spring 63 is disposed as an elastic member whose lower end is supported on the bottom surface of the recess 62. The coil spring 63 biases the guide pin 23 along the axial direction A so as to be separated from the male base body 22. That is, the guide pin 23 is displaced along the axial direction A between a position where the displacement based on the urging force of the coil spring 63 is restricted by the top of the case body 61 and a position where the coil spring 63 is most contracted. In the axial direction A, the guide pin 23 has a length in which the distal end portion 23a is disposed above the pressing surface 51a of the male pressing portion 51 in the axial direction A even when the coil spring 63 is in the most contracted state. It is formed with.
(Female member 30)
As shown in FIG. 2, a female joint 31 is disposed on the female base body 32 so as to pass through a multi-stage cylindrical mounting hole 66 that is reduced in diameter on the back surface 32b side by a mounting seat 32c. . The female joint 31 includes a female side connection body 67 to which an external pipe is connected and a female side cylinder body 68 supported by the female side connection body 67.

  The female connection body 67 has a multistage cylindrical shape extending along the axial direction A with a flow path 69 formed inside, and is disposed so that the central axis thereof coincides with the central axis of the mounting hole 66. Yes. The female connection body 67 is disposed in the mounting hole 66 and engages with the mounting seat 32c. The female connection body 67 is formed with an outer diameter smaller than that of the engaging portion 70 and extends from the back surface 32b of the female base 32. The protruding connection part 71 is integrally formed.

  The female cylinder 68 has a multistage cylindrical shape that has an inner diameter larger than the inner diameter of the connection portion 71 of the female connector 67 and extends along the axial direction A. The female cylinder 68 has a flow path 72 formed inside thereof, and is disposed so that its central axis coincides with the central axis of the mounting hole 66. The female-side cylinder 68 is integrally formed with a large-diameter portion 73 having a base end portion disposed in the mounting hole 66 and a small-diameter portion 75 connected to the distal end portion of the large-diameter portion 73 via a stepped portion 74. Has been. The small diameter portion 75 is formed in a size that allows the male side cylinder 43 to be slidable, and is inserted into the distal end of the small diameter part 75 so that the male side cylinder 43 is inserted into the outside. A portion 75a is formed.

  The base end portion of the large-diameter portion 73 is formed with an outer diameter that is larger than the outer diameter of the large-diameter portion 73 and slightly smaller than the inner diameter of the engaging portion 70 of the female connector 67. A fitting portion 73a is formed to be fitted into the. The male side cylinder 43 is supported by the female side connection body 67 by inserting the fitting part 73 a into the engaging part 70. An annular seal member 76 is provided in the groove formed on the outer peripheral surface of the fitting portion 73 a so that the fluid in the female joint 31 does not leak through the gap between the fitting portion 73 a and the engaging portion 70 of the female connector 67. Is arranged.

  The female joint 31 has a fixing plate 77 that covers the fitting portion 73a in a state in which the engaging portion 70 of the female connection body 67 and the fitting portion 73a of the large-diameter portion 73 are disposed in the mounting hole 66. Is fixed to the female base 32 by being screwed to the surface 32a of the female base 32 with screws (not shown).

  In the female cylinder 68, a valve pusher 80 that presses the male valve 55 is disposed. At one end of the valve pressing body 80, three fixing portions 80a extending radially at 120 ° intervals are formed. The valve pressing body 80 is fixed in the female side cylinder 68 by sandwiching the tip of the fixing portion 80 a between the female side connection body 67 and the female side cylinder 68. The valve pressing body 80 is formed with a substantially cylindrical extending portion 80b extending from the center of the three fixed portions 80a toward the insertion portion 75a.

  On the outer peripheral surface of the extension portion 80b, a recess is provided along the axial direction A between the three fixing portions 80a, and a flow path 69 of the female side connection body 67 and a flow path 72 of the female side cylinder body 68 are provided. A communication path 81 is formed for communicating the.

  A substantially cylindrical female-side pressing portion 82 is formed at the tip of the extending portion 80b. The female-side pressing portion 82 is disposed so that the central axis thereof coincides with the central axis of the mounting hole 66, and has a diameter larger than that of the extending portion 80 b and can be inserted into the male-side valve hole 53. The outer diameter is formed. An annular seal member 83 is attached to the groove formed on the outer peripheral surface of the female-side pressing portion 82.

  In the female cylinder 68, a female valve body 84 is disposed so as to close the annular gap between the female pressing portion 82 and the female cylinder 68. The female valve body 84 has a substantially cylindrical shape extending along the axial direction A, and is disposed such that the central axis coincides with the central axis of the mounting hole 66. The female side valve body 84 is formed in a substantially cylindrical shape having an inner diameter that can slide on the outer peripheral surface of the female side pressing portion 82 and an outer diameter that can slide on the small diameter portion 75 of the female side cylindrical body 68. . An annular seal member 85 that suppresses leakage of fluid in the female joint 31 through a gap between the female side valve body 84 and the female side cylinder 68 is formed in a groove formed on the outer peripheral surface of the female side valve body 84. It is installed. Note that the seal member 85 attached to the female-side pressing portion 82 prevents the fluid in the female joint 31 from leaking through the gap between the female-side pressing portion 82 and the female-side valve body 84.

  The female valve body 84 is urged toward the insertion portion 75a by a coil spring 86 whose one end is supported by the fixed portion 80a of the valve pressing body 80. The female valve body 84 has a flange 84a projecting from the outer peripheral surface at the end on the female connection body 67 side. The flange 84 a abuts on the stepped portion 74 of the female cylinder 68 so that the end surface of the female valve 84 is flush with the pressing surface 82 a of the female pressing portion 82. The displacement to the insertion part 75a side is regulated.

  Further, a cylindrical concealing member 88 made of an elastic material is externally attached to the female-side cylindrical body 68 on the small diameter portion 75. The concealing member 88 is formed with a bellows-like protrusion 88 a that protrudes further toward the male joint 21 than the insertion part 75 a of the female cylinder 68. The projecting portion 88 a has a sufficiently large inner diameter with respect to the male side cylinder 43, and when the male joint 21 is inserted into the female joint 31, the protruding portion 88 a is fixed to the fixing plate 50 screwed to the male side base 22. By abutting, the male joint 21 is obscured in a contracted state. By attaching such a concealing member 88, it is possible to prevent the fluid leaking from the male joint 21 and the female joint 31 in a connected state from being scattered around.

  A guide member 33 is disposed on the left side of the female joint 31 in the female side base 32. The guide member 33 has a bottomed cylindrical shape extending along the axial direction A, and is screwed to the female base body 32 by a screw portion 89 formed to extend from the bottom portion. The guide member 33 is formed with a guide hole 34 having an opening on its end surface 33a and extending along the axial direction A. The guide hole 34 is formed with a diameter larger than the outer diameter of the guide pin 23 and has a length capable of accommodating the guide pin 23. Note that the guide member 33 is formed in such a length that the end surface 33 a is disposed below the insertion portion 75 a of the female joint 31 in the axial direction A in the axial direction A. That is, the male joint 21 is inserted into the female joint 31 after entering the guide pin 23 into the guide member 33.

  Further, the guide hole 34 and the guide pin described above are arranged so that the insertion portion 75a and the male side pressing portion 51 are arranged on the same axis line in a state where the guide hole 34 and the guide pin 23 are arranged on the same axis line. 23. Furthermore, the guide hole 34 and the guide pin are arranged so that the difference between the inner diameter of the guide hole 34 and the inner diameter of the guide pin 23 is smaller than the difference between the inner diameter of the insertion portion 75a and the outer diameter of the male-side pressing portion 51. 23, the insertion part 75a, and the male side press part 51 are formed.

The operation of the pipe joint 10 composed of the male member 20 having the male joint 21 and the female member 30 having the female joint 31 will be described with reference to FIG.
First, the male member 20 and the female member 30 are arranged along the axial direction A so that the guide pin 23 enters the guide hole 34. When the male member 20 and the female member 30 are brought close to each other, the male joint 21 is inserted into the female joint 31 while being guided by the guide pin 23 that has entered the guide hole 34. When the male joint 21 is inserted into the female joint 31, the male side cylinder 43 slides on the small diameter portion 75 of the female side cylinder 68, and the male side pressing part 51 and the female side valve body 84 come into contact with each other. At the same time, the male side valve body 55 and the female side pressing portion 82 come into contact with each other.

When the male joint 21 is further inserted into the female joint 31 from this state, the projection 88a of the concealing member 88 is contracted by the fixing plate 50 of the male member 20 as shown in FIG. The pressing portion 51 presses the female side valve body 84 against the urging force of the coil spring 86 and displaces the female side valve body 84 toward the female side connecting body 67 side. Moreover, the female side pressing part 82 presses the male side valve body 55 against the urging force of the coil spring 56, and the male side valve body 55 is displaced to the male side connection body 42 side. In such a connected state, the flow path 44 of the male connection body 42 and the flow path 69 of the female connection body 67 communicate with each other to allow fluid flow. In the connected state, the seal member 54 attached to the outer peripheral surface of the male side pressing portion 51 leaks fluid through a gap between the outer peripheral surface of the male side cylindrical body 43 and the inner peripheral surface of the female side cylindrical body 68. Suppress it.
(Pipe coupling system 90)
Next, a pipe joint connection system 90 that connects the pipe joint 10 constituted by the male member 20 and the female member 30 described above will be described with reference to FIG.

  Incidentally, the pipe joint 10 mentioned above is used for the cooling system which cools the battery of an electric vehicle, for example. In this cooling system, cooling water cooled by a cooling device arranged on the vehicle body side is circulated between the vehicle body and the battery. In the electric vehicle, since the battery is detachably mounted on the vehicle body, the above-described pipe joint 10 includes, for example, the connecting portion 71 of the female member 30 connected to the piping member on the vehicle body side and the piping member on the battery side. The connection part 46 of the male member 20 is connected. And when attaching a battery to a vehicle body, the apparatus which moves a battery toward a fixed vehicle body is used.

  As shown in FIG. 4, the pipe joint connection system 90 includes a moving device 91 in addition to the male member 20 and the female member 30 described above. The moving device 91 is, for example, a device that moves the battery along the axial direction A. The male member 20 is fixed to the battery so that the extending direction of the guide pin 23 is the axial direction A. Yes.

  As shown in FIG. 4, the input / output unit 92 configuring the moving device 91 displays an operation button (not shown) including a start button, a stop button, a moving amount input button, and the status of the moving device 91. It consists of a display screen. The input / output unit 92 outputs an operation signal based on the operation of the operation button by the operator to the control unit 93 that performs overall control of the moving device 91, and displays information based on the signal from the control unit 93 on the display screen Or display.

  The control unit 93 includes a CPU (not shown), a ROM that stores various control programs and various data, a RAM that temporarily stores various data, and the like. The control unit 93 drives the drive unit 94 based on an operation signal from the input / output unit 92 to move the battery on which the male member 20 is fixed along the axial direction A, or stop the movement. .

In addition, the piezoelectric element 60 fixed to the tip end portion 23a of the guide pin 23 is electrically connected to the control unit 93 via an electric wiring (not shown). The controller 93 outputs a stop signal to the drive unit 94 when a voltage signal indicating a voltage higher than a predetermined value is continuously input for a predetermined time. In other words, the controller 93 immediately stops the drive unit 94 when the tip of the guide pin 23 comes into contact with, for example, the guide member 33 while the drive unit 94 is being driven.
(Function)
Next, the operation of the pipe joint 10 and the pipe joint connection system 90 described above will be described with reference to FIG.

  In the pipe joint connection system 90, when the male member 20 and the female member 30 are arranged so that the guide pin 23 enters the guide hole 34, the input / output unit 92 of the moving device 91 is subsequently operated to operate the male member. 20 moves are started. The moving device 91 drives the drive unit 94 based on an operation signal from the input / output unit 92 to move the male member 20 toward the female member 30 by the input movement amount. Although the male member 20 is arranged so that the guide pin 23 enters the guide hole 34, when the position of the male member 20 is deviated, as shown in FIG. It will collide with the end face 33a of 33.

  At this time, the guide pin 23 is displaced toward the male base 22 against the urging force of the coil spring 63 disposed in the case body 61. Further, the piezoelectric element 60 fixed to the tip of the guide pin 23 contracts, and a voltage signal accompanying the contraction is output to the control unit 93 of the moving device 91. When the voltage signal is continuously input for a predetermined time, the control unit 93 determines that the position of the male member 20 with respect to the female member 30 is shifted, and outputs a stop signal to the driving unit 94 to output the male member. The movement of 20 is stopped. Then, that effect is displayed on the display screen of the input / output unit 92.

As described above, according to the pipe joint 10 and the pipe joint connection system 90 according to the above embodiment, the effects listed below can be obtained.
(1) When the male joint 21 is inserted into the female joint 31, a voltage signal is output from the piezoelectric element 60 when the tip of the guide pin 23 comes into contact with the end surface 33 a of the guide member 33. Then, based on this voltage signal, it is detected that a displacement has occurred between the female joint 31 and the male joint 21. Thereby, even when the guide hole 34 and the guide pin 23 cannot be visually recognized, the movement of the male joint 21 toward the female joint 31 can be stopped. As a result, the displacement between the female joint 31 and the male joint 21 can suppress the deformation and breakage of the guide pin 23 and the guide member 33, and the deformation of the female joint 31 and the male joint 21 Damage can be suppressed. Therefore, it is possible to suppress problems caused by the advancement of these connections while the female joint 31 and the male joint 21 are displaced.

  (2) The piezoelectric element 60 of the guide pin 23 is disposed at a position farther from the male base 22 in the axial direction A than the pressing surface 51 a of the male joint 21, and the end surface 33 a of the guide member 33 is different from the female joint 31. It is arranged at a position farther from the female base 32 in the axial direction A than the insertion portion 75a. That is, in the case where there is a displacement between the male joint 21 and the female joint 31, the piezoelectric element 60 and the guide member 33 of the guide pin 23 before the male joint 21 is inserted into the female joint 31. In contact with the end face 33a. Thereby, when the position shift has arisen between the female joint 31 and the male joint 21, it can suppress that the female joint 31 and the male joint 21 contact. Therefore, even if the guide pin 23 or the guide member 33 is deformed or damaged due to an impact at the time of contact, it is possible to suppress the female joint 31 and the male joint 21 from being deformed or damaged.

  (3) The piezoelectric element 60 outputs a voltage signal corresponding to the contraction amount by the contact between the piezoelectric element 60 of the guide pin 23 and the end face 33 a of the guide member 33. By utilizing such a piezoelectric effect, it is possible to detect the positional deviation between the female joint 31 and the male joint 21 without supplying electric power to the element for detecting the positional deviation. As a result, it is possible to suppress the electric power necessary for detecting the positional deviation.

  (4) Further, when the guide pin 23 immediately enters the guide hole 34 after the piezoelectric element 60 of the guide pin 23 comes into contact with the end surface 33a of the guide member 33, the period during which the piezoelectric element 60 contracts is short. Therefore, it is also possible to detect the positional deviation based on the temporal change of the voltage signal.

  (5) Since the guide pin 23 is urged by the coil spring 63, the impact at the time of collision between the piezoelectric element 60 of the guide pin 23 and the end surface 33a of the guide member 33 can be reduced. Thereby, it is possible to further suppress the deformation and breakage of the guide pin 23 and the guide member 33.

In addition, the said embodiment can also be implemented with the following aspects.
In the above embodiment, the guide pin 23 is supported by the coil spring, which is an elastic member, in order to reduce the impact at the time of the collision between the guide pin 23 and the guide member 33. By changing this, the guide member 33 may be supported by the elastic member, or both the guide pin 23 and the guide member 33 may be supported by the elastic member. The member to be supported is not limited to a coil spring but may be a leaf spring or the like.

  In the above embodiment, a piezoelectric element is used as a signal output unit that outputs an electrical signal. For example, an electrode that is short-circuited by contact between the guide pin 23 and the end surface 33a of the guide member 33 may be used as the signal output unit. The point is that any signal may be output as long as the tip of the guide pin 23 comes into contact with a member other than the guide pin 23 to indicate the contact. Further, the part where the signal output unit is disposed is not limited to the distal end portion of the guide pin 23, and may be, for example, the proximal end portion of the guide pin 23. Any part can be used as long as it can detect the displacement at the tip by contacting with other members.

  In addition, although the signal output unit described above is disposed on the guide pin 23, such a signal output unit may be disposed on the guide member 33, or may be disposed on both the guide pin 23 and the guide member 33. It may be provided.

  In the above embodiment, the male joint 21 is inserted into the female joint 31 after the tip of the guide pin 23 is inserted into the guide hole 34. By changing this, for example, by inserting the insertion portion 75a of the female joint 31 further in the axial direction A, the male joint 31 is inserted into the male joint 31 before the guide pin 23 is inserted into the guide hole 34. A mode in which insertion of the mold joint 21 is started may be employed.

  In the above embodiment, the male member 20 and the female member 30 are provided with the two male joints 21 and the female joint 31, respectively, but the male joints disposed on the male member 20 and the female member 30. The numbers 21 and the female joints 31 are not limited to this.

  In the above embodiment, the guide pin 23 is disposed on the male member 20 and the guide member 33 is disposed on the female member 30. However, by changing this, the guide member 33 and the female member are disposed on the male member 20. A guide pin 23 may be disposed on the member 30.

  In the above-described embodiment, the male member 20 and the female member 30 are provided with two guide pins 23 and a guide member 33, respectively. However, the guide pins 23 and guides provided on the male member 20 and the female member 30 are provided. The number of members 33 is not limited to this.

  A ... axial direction, 10 ... pipe joint, 20 ... male member, 21 ... male joint, 22 ... male side base, 22a ... front surface, 22b ... back surface, 22c ... mounting seat, 23 ... guide pin, 23a ... tip, 23b ... Base end portion, 24 ... Defense wall, 25 ... Bolt, 30 ... Female member, 31 ... Female joint, 32 ... Female base, 32a ... Front surface, 32b ... Back surface, 32c ... Mounting seat, 33 ... Guide member, 33a ... end face, 34 ... guide hole, 35 ... bolt, 41 ... mounting hole, 42 ... male side connection body, 43 ... male side cylinder, 43a ... collar part, 44 ... flow path, 45 ... engagement part, 46 ... Connection part, 47 ... flow path, 49 ... sealing member, 50 ... fixing plate, 51 ... male side pressing part, 51a ... pressing surface, 52 ... male side valve seat, 53 ... male side valve hole, 54 ... sealing member, 55 ... male side valve element, 55a ... base end part, 55b ... tip part, 55c ... communication hole, 56 ... coil spring, 57 ... 60 ... piezoelectric element, 61 ... case body, 62 ... recess, 63 ... coil spring, 66 ... mounting hole, 67 ... female side connection body, 68 ... female side cylinder, 69 ... flow path, 70 ... engagement Joint part 71 ... Connection part 72 ... Flow path 73 ... Large diameter part 73a ... Insertion part 74 ... Step part 75 ... Small diameter part 75a ... Insertion part 76 ... Seal member 77 ... Fixing plate, DESCRIPTION OF SYMBOLS 80 ... Valve pushing body, 80a ... Fixed part, 80b ... Extension part, 81 ... Communication path, 82 ... Female side press part, 82a ... Pressing surface, 83 ... Seal member, 84 ... Female side valve body, 84a ... Gutter part 85 ... Sealing member, 86 ... Coil spring, 88 ... Concealing member, 88a ... Projection part, 89 ... Screw part, 90 ... Pipe joint connection system, 91 ... Moving device, 92 ... Input / output part, 93 ... Control part, 94 …Drive part.

Claims (5)

A first member having a first joint;
A second member having a second joint;
A guide pin provided on the first member and extending along a direction in which the first joint is connected to the second joint;
A guide member provided on the second member and having a guide hole extending along a direction in which the second joint is connected to the first joint;
In the pipe joint in which the first joint and the second joint can be connected by inserting the guide pin into the guide hole,
At least one of the guide pin and the guide member is provided with a signal output portion that outputs a signal when the tip portion of the one and the other member come into contact with each other. The pipe joint according to claim 1, wherein one of the first joint and the second joint can be inserted into the other by inserting the guide pin into the guide hole. The pipe joint according to claim 1 or 2, wherein the signal output unit is a piezoelectric element. The pipe joint according to any one of claims 1 to 3, wherein at least one of the guide pin and the guide member is supported by an elastic member. A first member having a first joint, a second member having a second joint, a guide pin provided on the first member and extending along a direction in which the first joint is connected to the second joint, A guide member provided on the second member and having a guide hole extending along a direction in which the second joint is connected to the first joint, and the guide pin is inserted into the guide hole. A pipe joint that enables the first joint and the second joint to be connected;
A moving device that moves at least one of the first member and the second member along a direction in which the first member and the second member are coupled;
In a pipe joint connection system comprising:
At least one of the distal end portion of the guide pin and the distal end portion of the guide member is provided with a signal output portion that outputs a signal by contact with another member other than the distal end portion,
The said moving apparatus is provided with the control part which receives the said signal output from the said signal output part, and stops the movement along the said connection direction. The pipe joint connection system characterized by the above-mentioned.

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