JP3179314U - Piping connection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pipe connection device capable of preventing a high pressure gas from being ejected when a member to be connected is removed.
A body 1 has a plurality of receiving holes 14 and a plurality of sliding grooves 16 formed therein. The accommodation hole 14 is provided with a first engagement member 15 that engages with the connection target member. The second engaging member 17 inserted through the sliding groove 16 is displaced in the axial direction of the main body 1 within the sliding groove 16. The first operating member 2 is provided at a position where it can abut on the first engaging member 15, and the second operating member 3 is provided at a position where it can abut on the second engaging member 17. When the first operation member 2 moves to the gas introduction member 7 side, the connection of the connection target member by the first engagement member 15 is released. At this time, the second engagement member 17 is fitted in the groove portion of the connection target member. When the second operation member 3 is moved to the gas introduction member 7 side after the internal pressure is lowered, the second engagement member 17 that is in contact with the second operation member 3 moves along the radially inward direction of the main body 1. Thereby, a connection object member can be removed.
[Selection] Figure 1

Description

  The present invention relates to a pipe connection device.

  The conventional pipe connection device has a sleeve 5 through which the connection target member 6 is inserted as shown in FIG. In the conventional pipe connection device, the ball 51 is engaged with the annular groove 61 formed in the connection target member 6, and the sleeve 5 and the connection target member 6 are firmly connected. After connecting the sleeve 5 and the connection target member 6, a drive target device (not shown) connected to the connection target member 6 is driven using high-pressure gas.

  However, in the conventional pipe connection device, since the high-pressure gas is filled in the sleeve 5, when the connection target member 6 is removed from the sleeve 5, the high-pressure gas is ejected from the connection target member 6 and is in a dangerous state. There is a fear. For this reason, in the conventional pipe connection device, the slot 52 and the plunger 53 are provided above the ball 51. The plunger 53 slides in the slot 52 in conjunction with the operation of the operation member 54 for removing the connection target member 6. When the connection target member 6 is removed from the sleeve 5, as shown in FIG. 9, after the ball 51 is detached from the annular groove 61 of the connection target member 6, the plunger 53 slides into the annular groove 61 to exhibit a different connection function. Then, the connection target member 6 is prevented from being removed at a stretch. At this time, after the high-pressure gas accumulated in the connection target member 6 leaks and the decompression is completed, the operation member 54 is operated to remove the connection target member 6. Thereby, the connection object member 6 can be removed safely.

  However, in the conventional pipe connection device, since the connection target member 6 is removed after decompression in advance, a two-stage operation is required. Further, there is only one operation member 54 for operating the two-stage operation, and the two-stage operation is not clearly divided. For this reason, when the user makes a mistake in operating the operation member 54, for example, when the user is busy with work and lacks attention when pressing the operation member 54, the connection target member before the first-stage decompression operation is completed. 6 may come off, and in this case, high-pressure gas may be ejected.

  The present invention has been made in view of such conventional problems. The objective of this invention is providing the piping connection apparatus which can prevent the ejection of a high pressure gas at the time of removal of a connection object member.

  The present invention is a pipe connection device that causes a high-pressure gas supplied by a pump to flow into a connection target member, and has one opening through which high-pressure gas flows and the other opening to which the connection target member is connected. A plurality of receiving holes on the radially outer side wall on the other opening side, and a plurality of U-shaped slips formed on the other opening side of the plurality of receiving holes and formed obliquely with respect to the central axis A sleeve-shaped main body that forms a groove, a first engagement member that is housed in the plurality of housing holes, a part of which protrudes from the housing hole in a radially outward direction of the body, and a second engagement that is provided in the plurality of sliding grooves A member, and a resistance surface that is provided at a position facing the first engagement member and that can contact or separate from the first engagement member, and an annular groove that is positioned on the other opening side of the resistance surface are formed on the inner wall. A sleeve-shaped first operating member and one opening of the first operating member are provided on the opening side. A first reset spring that urges the first operating member toward the other opening, and a pressing member that is provided at a position facing the second engagement member and that can contact or separate from the second engagement member on the inner wall A sleeve-shaped second operating member that forms a portion, and a second reset spring that is provided on one opening side of the second operating member and biases the second operating member toward the other opening side, When the first operating member is moved to the one opening side, the first engaging member is moved away from the resistance surface and moved into the annular groove, and when the second operating member is moved to the one opening side, the second engaging member is moved. The combined member moves in the radial direction of the main body.

  In the pipe connection device of the present invention, the decompression operation in the first stage and the removal operation of the connection target member in the second stage can be performed independently, thereby preventing the ejection of high-pressure gas and ensuring operational safety. Obtainable.

1 is an exploded perspective view of a pipe connection device according to an embodiment of the present invention. 1 is a side view of a pipe connection device according to an embodiment of the present invention. It is a side view from the angle different from FIG. 2 of the piping connection apparatus by one Embodiment of this invention. It is sectional drawing at the time of use of the piping connection apparatus by one Embodiment of this invention. It is sectional drawing at the time of use of the piping connection apparatus by one Embodiment of this invention, Comprising: It is sectional drawing of a state different from FIG. It is sectional drawing at the time of use of the piping connection apparatus by one Embodiment of this invention, Comprising: It is sectional drawing of a state different from FIG. It is a partial expanded sectional view of the pipe connection device by one embodiment of the present invention. It is sectional drawing at the time of use of the conventional piping connection apparatus. It is sectional drawing at the time of use of the conventional piping connection apparatus.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below.
(One embodiment)
The pipe connection device 100 according to an embodiment includes a sleeve-shaped main body 1, a first engagement member 15, a second engagement member 17, a first operation member 2, a second operation member 3, a first reset spring 24, and a second. A reset spring 18 and a gas introduction member 7 are provided. An opening 11 and an opening 12 are formed at both ends of the main body 1. The opening 11 as “one opening” is provided corresponding to one end of the gas introduction member 7. The opening 12 as the “other opening” is connected to the connection target member 4 that supplies gas, and drives a drive target device (not shown) by supplying high-pressure gas.

  The gas introduction member 7 includes a gas introduction part main body 71 fixed to the main body 1 and a valve set 72 provided between the main body 1 and the gas introduction part main body 71.

The valve set 72 includes a gas introduction ring 721, a valve plug 722, a support ring 723, a support spring 724, and the like.
The gas introduction ring 721 is provided between the main body 1 and the gas introduction portion main body 71. The valve plug 722 is inserted through the gas introduction ring 721. An O-ring 7221 is provided on the gas inlet main body 71 side of the valve plug 722. The end of the valve plug 722 on the main body 1 side abuts on the inner wall of the main body 1 and has a plurality of guide holes 7222. A support spring 724 is provided between the gas introduction ring 721 and the valve plug 722.

  The support ring 723 can cover the accommodation hole 14 of the main body 1. When the support ring 723 moves and presses the valve plug 722, the valve plug 722 is separated from the gas introduction ring 721 and air flows into the main body 1 through the guide hole 7222.

  In the outer wall of the main body 1, a plurality of receiving holes 14 that communicate the inside and the outside are formed in the circumferential direction. A plurality of first engagement members 15 that engage with the connection target member 4 are provided in the plurality of accommodation holes 14. The accommodation hole 14 has an elliptical hole shape having a long axis perpendicular to the axial direction of the main body 1 and a short axis parallel to the axial direction of the main body 1. The accommodation hole 14 has an ellipsoidal ball corresponding to the shape of the accommodation hole 14 corresponding to the first engagement member 15 provided therein.

  A part of the first engagement member 15 protrudes from the accommodation hole 14 toward the radially inward direction of the main body 1. As shown in FIG. 4, the first engagement member 15 engages with the groove 41 of the connection target member 4, and the connection target member 4 and the main body 1 are fixed.

  The main body 1 is formed with a plurality of sliding grooves 16 having a U shape in the circumferential direction at the end on the opening 12 side. As shown in FIGS. 2 and 3, the sliding groove 16 is formed so as to incline in the radially outward direction and to communicate the inside and the outside of the main body 1. The second engaging member 17 is inserted into the sliding groove 16 from one direction.

  A flange 19 is provided between the accommodation hole 14 of the main body 1 and the sliding groove 16. An accommodation groove 191 is formed on the opening 12 side of the flange 19. The accommodation groove 191 is formed so as to surround the opening 12 and accommodates the second reset spring 18 that supports the second engagement member 17.

  The second engaging member 17 is displaced in the axial direction of the main body 1 by sliding in the sliding groove 16. The sliding groove 16 prevents the second engagement member 17 from coming off the sliding groove 16 by a stopper 161 formed on the main body 1.

  A sleeve-like first operation member 2 is provided at a location corresponding to the first engagement member 15 of the main body 1 so as to cover the main body 1. The first operation member 2 is formed with a resistance surface 22 facing the first engagement member 15 in the middle of the inner wall. An annular groove 23 is provided above the resistance surface 22. The first operating member 2 receives a biasing force of a first reset spring 24 provided on the radially outer side of the main body 1 and abuts the bottom 231 of the annular groove 23 with the bottom 192 of the flange 19. As a result, the resistance surface 22 keeps the first engagement member 15 in the groove 41 of the connection target member 4.

  The bottom portion 192 of the flange 19 has an inclination, and the bottom portion 231 of the annular groove 23 of the first operating member 2 also has an inclination corresponding to the bottom portion 192 of the flange 19. As a result, the first operating member 2 receives a biasing force from the first reset spring 24, and the bottom portion 231 of the annular groove 23 abuts against the bottom portion 192 of the flange 19. When the first operating member 2 is moved downward, as shown in FIGS. 4 and 5, the first engaging member 15 loses the resistance from the resistance surface 22, receives the support of the support ring 723, and enters the annular groove 23. Moving. At this time, the first operating member 2 tries to return to the original position after being stopped by the action of the first reset spring 24.

  A sleeve-like second operation member 3 is provided at a location corresponding to the second engagement member 17 of the main body 1. The second operating member 3 is located above the first operating member 2 and is operated separately from the first operating member 2. A pressing portion 31 that abuts against the second engagement member 17 is formed at one end of the second operation member 3. When the second operating member 3 is pressed, the pressing portion 31 moves the second engaging member 17 in the sliding groove 16 along the radially inward direction of the main body 1. After the second operating member 3 moves the second engaging member 17, the second operating member 3 is moved to the original position by the second reset spring 18. A stopper 10 extending radially outward is formed at one end of the main body 1 corresponding to the second operating member 3. The pressing portion 31 of the second operating member 3 is in contact with the stopper 10 and is prevented from coming off from the main body 1.

Next, the effect | action of the piping connection apparatus 100 by one Embodiment is demonstrated based on FIGS. 4-6.
FIG. 4 is a cross-sectional view of the state in which the connection target member 4 is connected to the pipe connection device 100. As shown in FIG. 4, since the first engagement member 15 engages with the groove portion 41 of the connection target member 4, the connection target member 4 is fixed to the pipe connection device 100. At this time, the high-pressure gas supplied from the outside enters from the opening 11 to which the gas introduction member 7 of the main body 1 is connected, and drives a driving target device (not shown) to which the connection target member 4 is connected through the main body 1. To do.

  Next, as shown in FIG. 5, when the first operation member 2 is pushed down toward the gas introduction member 7, the annular groove 23 of the first operation member 2 moves to a position corresponding to the first engagement member 15. When the first engagement member 15 enters the annular groove 23, the first engagement member 15 is detached from the groove portion 41 of the connection target member 4. At this time, the connection target member 4 is pulled out upward in the drawing of FIG. At this time, the second engagement member 17 is supported by the second reset spring 18 to be engaged with the groove portion 41 of the connection target member 4. Thereby, it can prevent that the connection object member 4 remove | deviates immediately.

  As shown in FIG. 6, the high-pressure gas accumulated in the main body 1 leaks to the outside through the gap of the groove portion 41 from which the first engagement member 15 is removed. When the second operating member 3 is pushed down in the drawing of FIG. 6 after waiting for the pressure to drop, the pressing portion 31 comes into contact with the second engaging member 17 and the second engaging member 17 moves in the sliding groove 16. It moves along the radial direction of the main body 1. Thereby, the 2nd engagement member 17 comes off from the groove part 41 of the connection object member 4, and the connection object member 4 can be removed. Therefore, the connection target member 4 can be easily removed and there is no possibility that high-pressure gas will be ejected.

(Other embodiments)
In the above-described embodiment, the pipe connection device includes a main body, a first engagement member, a second engagement member, a first operation member, a second operation member, a first reset spring, a second reset spring, and a gas introduction member. We prepared. However, the components of the pipe connection device are not limited to this. There may be only the main body, the first engagement member, the second engagement member, the first operation member, the second operation member, the first reset spring, and the second reset spring.

As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.

DESCRIPTION OF SYMBOLS 1 ... Main body 2 ... 1st operation member 3 ... 2nd operation member 4 ... Connection object member 5 ... Sleeve 6 ... Connection object member 7 ... Gas introduction member 10 ... Stopper 11 ・ ・ ・ Opening portion 12 ・ ・ ・ Opening portion 14 ・ ・ ・ Accommodating hole 15 ・ ・ ・ first engaging member 16 ・ ・ ・ sliding groove 17 ・ ・ ・ second engaging member 18 ・ ・ ・ second Reset spring 19 ... flange 22 ... resistance surface 23 ... annular groove 24 ... first reset spring 31 ... pressing part 41 ... groove part 51 ... ball 52 ... slot 53 ··· Plunger 54 ··· Operation member 61 ··· Annular groove 71 ··· Gas introduction portion main body 72 ··· Valve set 100 ··· Pipe connection device 161 ··· Stopper 191 · · · Housing groove 192 .... Bottom part 231 ... Bottom part 721 ... Gas introduction ring 722 ... Valve plug 723 ... Support ring 724 ... Support spring 7221 ... O-ring 7222 ... Guide hole

Claims (3)

A pipe connection device for flowing high-pressure gas supplied by a pump into a connection target member,
One opening into which high-pressure gas flows, and the other opening to which the connection target member is connected, a plurality of receiving holes on the radially outer side wall on the other opening side, and a plurality of the holes A sleeve-like body that forms a plurality of sliding grooves having a U-shape that is located on the other opening side of the accommodation hole and is formed obliquely with respect to the central axis;
A first engagement member that is accommodated in the plurality of accommodation holes, and a part of the first engagement member projects from the accommodation hole in a radially outward direction of the main body;
A second engagement member provided in the plurality of sliding grooves;
A resistance surface that is provided at a position where the first engagement member can be contacted, a contact surface that contacts or separates from the first engagement member on an inner wall, and an annular groove that is positioned on the other opening side of the resistance surface. A sleeve-shaped first operating member to be formed;
A first reset spring that contacts the one opening side of the first operating member and biases the first operating member toward the other opening side;
A sleeve-like second operating member that is provided at a position capable of contacting the second engaging member and forms a pressing portion that contacts or separates from the second engaging member on an inner wall;
A second reset spring that contacts the one opening side of the second operating member and biases the second operating member toward the other opening side;
With
When the first operating member is moved toward the one opening, the first engaging member moves away from the resistance surface and moves into the annular groove,
When the second operating member is moved toward the one opening, the second engaging member is moved in the radially inward direction of the main body. A stopper that is formed on the other opening side of the main body with respect to the sliding groove and restricts the movement of the second operating member;
A flange provided between the accommodation hole and the sliding groove, and having a recess formed on the end surface on the other opening side to which one end of the second reset spring is locked;
With
The one opening side of the flange has an inclined surface, and the end surface on the other opening side of the annular groove of the first operating member is an inclined surface on the one opening side of the flange. The pipe connection device according to claim 1, wherein the pipe connection device is inclined so as to be able to come into contact with the pipe connection device. A gas introduction member that flows the high-pressure gas generated by the pump into the main body;
The gas introduction member is composed of a gas introduction part main body connected to the pump, and a valve set connected to the main body and the gas introduction part main body,
The valve set includes a gas introduction ring provided between the main body and the gas introduction main body, and a guide hole that is inserted into the gas introduction ring and abuts one end against the inner wall of the main body to communicate the inside and the outside. A valve plug, a support spring provided between the gas introduction ring and the valve plug, and a support ring that covers the accommodation hole of the main body,
When the support ring moves and presses the valve plug, the gas introduction ring is separated from the valve plug, and high-pressure gas pumped by the pump flows through the main body through the guide hole. The pipe connection device according to claim 1.

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