JP2013091505A - Manual filling machine and head component thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably connect a socket with a trigger lever to a plug by one-handed operation.SOLUTION: The socket with trigger lever 20A is detachably connected to the plug 10 having an openable/closable first nozzle 12 for passing gas or liquid and a socket locked means. The socket 20A has: an openable/closable second nozzle 23 for passing gas or liquid; a plug locking means; a gripper 36 graspable by one hand; and a trigger lever 37 operable in two stages by one hand. After the socket 20A is connected to the plug 10 with the trigger lever 37 being in an initial state, the plug locking means of the socket 20A is operated by the first-stage operation of the trigger lever 37 to engagingly lock the socket locked means of the plug 10 by the plug locking means, and the first and second nozzles 12, 23 are thereafter opened by the second-stage operation of the trigger lever 37.

Description

  The present invention relates to a manual filling machine.

  When a propane gas cylinder is used as fuel for a vehicle (taxi, etc.), a manual type filling machine is used by a worker for refilling the gas, and the manual type is attached to the plug of the propane gas cylinder (with the plug next to it). A filling machine was inserted to supply gas.

Japanese Patent Laid-Open No. 2001-192099 JP 2009-281539 A JP 2005-155864 A

  However, it is not easy to securely connect the tip of the manual filling machine to the plug of the propane gas cylinder.

  That is, a manual filling machine that can easily fill the gas by easily connecting the tip of the manual filling machine to the plug of the propane gas cylinder is desirable.

The present invention has been made in view of the above problems,
A manual filling machine according to the present invention includes a first flow passage formed in an annular inner peripheral portion for passing a gas or a liquid, and a closing direction by a first compression spring in the first flow passage. A plug having a plug body having a first nozzle that can be opened and closed stored in a biased state and a first concave groove that is circulated along the circumferential direction of the annular outer peripheral portion. A manual filling machine that can be freely connected,
A tip-side round hole formed on the tip side inside an annular shape to detachably fit the tip side of the outer peripheral portion of the plug body, and the gas or liquid connected to the rear of the tip-side round hole A plurality of second flow passages formed to pass therethrough, an annular front end side outer peripheral portion and the front end side round hole are provided so as to penetrate along the circumferential direction, and the axial direction is formed long. A socket body having a plurality of elongated holes and a sliding cylindrical stopper collar formed on the rear end side of the annular outer peripheral portion;
A plurality of balls that are loosely fitted one by one into the plurality of elongated holes of the socket body, and a part of which can protrude into the tip side round hole;
A third flow passage formed inside the ring to allow the gas or liquid to pass therethrough, and an open / close accommodated in the third flow passage while being biased in a closing direction by a second compression spring And an annular outer peripheral portion is urged rearwardly by a third compression spring in the second flow passage of the socket body, and the second flow passage. A nozzle housing cylinder movably provided along the inside,
A round hole that is slidably fitted to the outer peripheral portion of the socket body, and a second hole that is circulated along the circumferential direction of the inner surface of the round hole so that the plurality of balls are slidably engaged. A sliding cylinder having a concave groove;
When the socket body is initially separated from the plug, the sliding cylinder is urged toward the tip end side of the socket body so that the plurality of balls enter the second concave groove. A compression spring of
A gripping body that is integrally attached to the nozzle housing cylinder and can be gripped with one hand;
A trigger lever attached to the gripper and operable in two stages with one hand;
A connecting rod having one end connected to the sliding cylinder in the initial state and the other end connected to the trigger lever in the initial state;
One end is connected to the sliding cylinder, the other end is connected to the gripping body, and the sliding cylinder is slid toward the rear side of the socket body with respect to the sliding cylinder by air pressure or hydraulic pressure. A sliding cylinder driving means for applying a force in a direction to be applied;
With
After connecting the socket to the plug by inserting the tip side of the plug body into the socket body in the initial state of the trigger lever and engaging the plurality of balls in the first concave groove, The sliding cylinder is moved by the movement of the connecting rod against the fourth compression spring so that the plurality of balls are detached from the second concave groove by the first stage operation of the trigger lever. The socket is locked to the plug by sliding toward the sliding cylinder stopper collar, and the movement of the sliding cylinder after the first stage operation of the trigger lever is the sliding cylinder. The nozzle housing cylinder is moved by the reaction force of the sliding cylinder driving means applied to the sliding cylinder by the second stage operation of the trigger lever while being restricted by the stopper flange. 3 compression spring The first and second nozzles are opened by moving the socket body to the tip side in the second flow path of the socket body and pushing the first nozzle with the second nozzle. The gist is that it is configured.

In addition, the manual filling machine of the present invention includes a first flow passage formed in an annular inner peripheral portion for passing gas or liquid, and a first compression spring in the first flow passage. A plug having a plug body having a first nozzle that can be opened and closed and is energized in a closing direction, and a first concave groove that is circulated along a circumferential direction of an annular outer periphery. A manual filling machine detachably connected to
A tip-side round hole formed on the tip side inside an annular shape to detachably fit the tip side of the outer peripheral portion of the plug body, and the gas or liquid connected to the rear of the tip-side round hole A plurality of second flow passages formed to pass therethrough, an annular front end side outer peripheral portion and the front end side round hole are provided so as to penetrate along the circumferential direction, and the axial direction is formed long. A socket body having a plurality of elongated holes and a sliding cylindrical stopper collar formed on the rear end side of the annular outer peripheral portion;
A plurality of balls that are loosely fitted one by one into the plurality of elongated holes of the socket body, and a part of which can protrude into the tip side round hole;
A third flow passage formed inside the ring to allow the gas or liquid to pass therethrough, and an open / close accommodated in the third flow passage while being biased in a closing direction by a second compression spring And an annular outer peripheral portion is urged rearwardly by a third compression spring in the second flow passage of the socket body, and the second flow passage. A nozzle housing cylinder movably provided along the inside,
A round hole that is slidably fitted to the outer peripheral portion of the socket body, and a second hole that is circulated along the circumferential direction of the inner surface of the round hole so that the plurality of balls are slidably engaged. A sliding cylinder having a concave groove;
When the socket body is initially separated from the plug, the sliding cylinder is urged toward the tip end side of the socket body so that the plurality of balls enter the second concave groove. A compression spring of
A gripping body that is integrally attached to the nozzle housing cylinder and can be gripped with one hand;
A trigger lever attached to the gripper and operable in two stages with one hand;
A connecting rod having one end connected to the sliding cylinder in the initial state and the other end connected to the trigger lever in the initial state;
With
After connecting the socket to the plug by inserting the tip side of the plug body into the socket body in the initial state of the trigger lever and engaging the plurality of balls in the first concave groove, The sliding cylinder is moved by the movement of the connecting rod against the fourth compression spring so that the plurality of balls are detached from the second concave groove by the first stage operation of the trigger lever. The socket is locked to the plug by sliding toward the sliding cylinder stopper collar, and the movement of the sliding cylinder after the first stage operation of the trigger lever is the sliding cylinder. The nozzle housing cylinder is moved to the third compression spring by a reaction force of the force from the connecting rod applied to the sliding cylinder by the second stage operation of the trigger lever while being restricted by the stopper flange. Against the above The first and second nozzles are both opened by moving to the tip side in the second flow passage of the ket body and pushing the first nozzle with the second nozzle. It is a summary.

The leading part of the manual-type filling machine of the present invention includes a first flow passage formed in an annular inner peripheral portion for passing gas or liquid, and a first compression spring in the first flow passage. And a plug body having a first nozzle that can be opened and closed stored in a state of being biased in a closing direction, and a first concave groove that is circulated along the circumferential direction of the annular outer peripheral portion. It is a leading part of a manual filling machine that is detachably connected to a plug,
A tip-side round hole formed on the tip side inside an annular shape to detachably fit the tip side of the outer peripheral portion of the plug body, and the gas or liquid connected to the rear of the tip-side round hole A plurality of second flow passages formed to pass therethrough, an annular front end side outer peripheral portion and the front end side round hole are provided so as to penetrate along the circumferential direction, and the axial direction is formed long. A socket body having a plurality of elongated holes and a sliding cylindrical stopper collar formed on the rear end side of the annular outer peripheral portion;
A plurality of balls that are loosely fitted one by one into the plurality of elongated holes of the socket body, and a part of which can protrude into the tip side round hole;
A third flow passage formed inside the ring to allow the gas or liquid to pass therethrough, and an open / close accommodated in the third flow passage while being biased in a closing direction by a second compression spring And an annular outer peripheral portion is urged rearwardly by a third compression spring in the second flow passage of the socket body, and the second flow passage. A nozzle housing cylinder movably provided along the inside,
A round hole that is slidably fitted to the outer peripheral portion of the socket body, and a second hole that is circulated along the circumferential direction of the inner surface of the round hole so that the plurality of balls are slidably engaged. A sliding cylinder having a concave groove;
When the socket body is initially separated from the plug, the sliding cylinder is urged toward the tip end side of the socket body so that the plurality of balls enter the second concave groove. A compression spring of
A disconnection preventing means for preventing the nozzle housing cylinder from slipping out of the second flow passage of the socket body at an initial stage when the socket body is separated from the plug.
The main point is that

  As described above, according to the manual filling machine of the present invention, it is possible to provide a pipe joint and a socket that can easily and reliably connect a socket to a plug by one-hand operation.

    Furthermore, according to the leading part, when the durability of some members provided on the leading side in the socket deteriorates, only the leading side (leading part) can be replaced at low cost.

It is the perspective view which showed the socket with a trigger lever of this Embodiment 1 applied to a pipe joint. It is the longitudinal cross-sectional view which cut and showed the plug attached to the cylinder or the tank. It is sectional drawing which showed the principal part of the socket with a trigger lever of this Embodiment 1. FIG. In this Embodiment 1, it is the 1st operation | movement figure for demonstrating the initial state of the trigger lever which a plug and a socket space apart, and a two-step operation is possible with one hand, (a) showed the whole Side view, (b) is a longitudinal sectional view showing a partially broken and enlarged view. In this Embodiment 1, it is a 2nd operation | movement figure for demonstrating the state which connected the socket to the plug when the trigger lever is an initial state, (a) is a side view which showed the whole, (b) is a part It is the longitudinal cross-sectional view shown fractured and enlarged. In this Embodiment 1, it is a 3rd operation | movement figure for demonstrating the state which locked the socket to the plug by operation of the 1st step of a trigger lever, (a) is the side view which showed the whole, (b) is It is the longitudinal cross-sectional view shown partially enlarged and fractured. In this Embodiment 1, it is the 4th operation figure for explaining the state where the 1st and 2nd nozzle was opened by operation of the 2nd step of a trigger lever, (a) is a side view showing the whole, (B) is the longitudinal cross-sectional view shown partially expanded and expanded. It is the perspective view which showed the socket with a trigger lever of this Embodiment 2 applied to a pipe joint. In this Embodiment 2, it is the 1st operation | movement figure for demonstrating the initial state of the trigger lever which a plug and a socket space apart, and a two-step operation is possible with one hand, (a) showed the whole Side view, (b) is a longitudinal sectional view showing a partially broken and enlarged view. In this Embodiment 2, it is a 2nd operation | movement figure for demonstrating the state which connected the socket to the plug when the trigger lever is an initial state, (a) is a side view which showed the whole, (b) is a part It is the longitudinal cross-sectional view shown fractured and enlarged. In this Embodiment 2, it is a 3rd operation | movement figure for demonstrating the state which locked the socket to the plug by operation of the 1st step of a trigger lever, (a) is a side view which showed the whole, (b) is It is the longitudinal cross-sectional view shown partially enlarged and fractured. In this Embodiment 2, it is the 4th operation figure for explaining the state where the 1st and 2nd nozzle was opened by operation of the 2nd step of a trigger lever, (a) is a side view showing the whole, (B) is the longitudinal cross-sectional view shown partially expanded and expanded. It is the perspective view which showed the whole structure of the socket head part of this Embodiment 3, (a) shows the case where a socket head part is applied to Embodiment 1, (b) is a socket head part embodiment. FIG. It is the longitudinal cross-sectional view which expanded and showed the socket head component of this Embodiment 3.

  Hereinafter, a socket with a trigger lever and a socket head part according to the present invention will be described in detail in the order of Embodiment 1, Embodiment 2, and Embodiment 3 with reference to FIGS.

Embodiment 1

  FIG. 1 is a perspective view showing a manual filling machine (also referred to as a socket with a trigger lever) 20A according to the first embodiment. However, in FIG. 1, the plug 10 attached to the propane gas cylinder B or the tank T is also shown, and the pipe joint 1A in the first embodiment is composed of the plug 10 and the socket 20A with the trigger lever of the first embodiment. Configure.

For example, in a propane gas cylinder (hereinafter referred to as cylinder B) B used in the present embodiment, a plug 10 is provided beside the cylinder.

  FIG. 2 is a cross-sectional view of the plug 10 attached to the cylinder B or the tank T. Further, FIG. 3 is a cross-sectional view showing a main part of the socket 20A with a trigger lever of the first embodiment.

  As shown in FIG. 1, the socket 20A with a trigger lever according to the first embodiment is configured as a manual filling machine that is detachably attached to the plug 10 and can fill the cylinder B or the tank T with gas or liquid. ing.

  The main constituent members of the socket 20A with the trigger lever (hereinafter referred to as the socket 20A) of the first embodiment described above are the socket body 21 and the socket-side nozzle 23 (FIG. 3) that can move in the socket body 21. The accommodated nozzle housing cylinder 28, the flow path coupling cylinder 28, the sliding cylinder 34 that slides on the socket body 21, the gripping body 36, and a trigger lever 37 that can be operated in two steps with one hand. The connecting rod 40 connected between the sliding cylinder 34 and the trigger lever 37 and the sliding cylinder driving means 50 for applying a force by air pressure or hydraulic pressure to the sliding cylinder 34 by operating the trigger lever 37. These main constituent members will be described in detail later.

  With the above-described configuration, the trigger plug lever 37 that can be operated in two steps with one hand can be easily attached to and detached from the male plug 10 fixedly attached to the cylinder B or the tank T.

  Then, after the socket 20A is held and connected to the plug 10 on the fixed side in the initial state of the trigger lever 37 by one hand, the socket 20A is locked (locked) to the plug 10 by the first stage operation of the trigger lever 37. ) Thereafter, the plug-side nozzle (first nozzle) 12 provided in the plug 10 and the socket-side nozzle (second nozzle) 23 provided in the socket 20A are opened by the second operation of the trigger lever 37. , Gas or liquid can be reliably passed between the plug 10 and the socket 20A.

  In the following description, the side where both 10 and 20A are connected is referred to as the front end side, and the side opposite to the front end side is referred to as the rear end side.

  As shown in FIGS. 1 to 3, the pipe joint 1 </ b> A according to the first embodiment can be operated in two steps with one male hand and a male plug 10 fixedly attached to a cylinder B or a tank T that contains gas or liquid. The female socket 20A according to the first embodiment is provided with a trigger lever 37 that is detachable from the plug 10.

  At this time, the cylinder B is installed, for example, outdoors, and accommodates gas such as propane gas, while the tank T is provided, for example, in the body of an automobile and accommodates liquid such as gasoline or heavy oil. And the cylinder B or the tank T is formed in a suitable shape according to the use.

  First, as shown in FIG. 1 and FIG. 2, the male plug 10 described above has a plug body 11 formed in a ring shape with a flange to allow gas or liquid to pass through, and is connected to the socket 20A. A flange portion 11c1 is formed at a middle portion between the leading end portion 11a and the rear end portion 11b to be larger in diameter than the leading end side outer peripheral portion 11c.

  In addition, the male plug 10 is formed by screwing a screw portion 11c3 formed on the outer periphery of the rear end portion 11b side of the plug body 11 to the plug support member PS attached to the cylinder B or the tank T, so that the flange portion 11c1 is formed. The plug body 11 is fixed to the cylinder B or the tank T by being brought into contact with the cylinder B or the tank T.

  Further, on the front end side outer peripheral portion 11c of the plug main body 11, a tapered concave groove (first concave groove) 11c2 having a taper in the front and rear in the axial direction of the plug main body 11 is provided on the front side of the flange portion 11c1. The tapered groove 11c2 is circulated along the direction and has a smaller diameter than the distal end outer peripheral portion 11c. The tapered groove 11c2 locks the socket 20A so as to lock the socket 20A, which will be described later. A plurality of balls 22 attached to can be engaged with each other so as to advance and retreat.

  Further, a plug side flow passage (first flow passage) 11d through which a gas or a liquid flows is pierced through the inside of the plug main body 11 between the front end portion 11a and the rear end portion 11b, and this plug The plug-side nozzle (first nozzle) 12 is fitted in the plug-side nozzle bearing 14 supported by the first bearing support member 13 in the side flow passage 11d and can be opened and closed by the biasing force of the first compression spring 15. It is stored in.

  The plug-side nozzle (first nozzle) 12 is formed to have a tapered tip flange 12a on the tip side and a diameter smaller than the tapered tip collar 12a connected to the rear of the tapered tip collar 12a. The intermediate shaft portion 12b and the rear end shaft portion 12c connected to the rear of the intermediate shaft portion 12b and having a smaller diameter than the intermediate shaft portion 12b are integrally formed concentrically.

  At this time, the plug-side flow passage 11d of the plug body 11 has a tapered inner surface 11d1 inclined in a conical shape so that the inner diameter gradually decreases toward the tip end portion 11a side. The plug-side nozzle 12 can be opened and closed by contacting and separating the tapered tip flange 12a of the plug-side nozzle 12.

  Further, the first bearing support member 13 provided at the intermediate portion in the plug side flow passage 11d of the plug main body 11 has a plurality of penetrations by a plurality of spokes provided radially along the outer periphery of the central plug side nozzle bearing 14. Holes are formed, and the plurality of through holes allow gas or liquid to pass through the plug side flow passage 11d without any trouble.

  Since the rear end shaft portion 12c of the plug-side nozzle 12 is fitted to and supported by the plug-side nozzle bearing 14, the plug-side nozzle 12 can slide in the axial direction of the plug-side nozzle bearing 14. Yes.

  Further, the plug-side nozzle 12 is biased by the urging force of the first compression spring 15 fitted into the intermediate shaft portion 12 b of the plug-side nozzle 12 between the tapered tip flange 12 a of the plug-side nozzle 12 and the plug-side nozzle bearing 14. When the plug 10 is separated from the socket 20A at the initial stage, the twelve tapered tip flanges 12a are in contact with a tapered inner surface 11d1 formed to be inclined in the plug side flow passage 11d. The plug-side nozzle 12 housed in the flow passage 11d is in a closed state.

  Next, as shown in FIGS. 1 and 3, the female socket (socket with trigger lever) 20A described above is a socket in which a second flow passage 21h is formed in an annular shape so as to allow gas or liquid to pass therethrough. One piece is loosely fitted into each of a plurality of long holes 21g formed between the main body 21, the front end side outer peripheral portion 21c of the socket main body 21 and the front end side round hole 21f, and a part projects into the front end side round hole 21f. A plurality of possible balls 22 and a socket side nozzle (second nozzle) 23 that can be opened and closed in a third flow passage 28e formed inside the annular shape are urged in a closing direction by a second compression spring 26. The annular outer periphery moves along the second flow passage 21h while being urged rearward by the third compression spring 27 in the second flow passage 21h of the socket body 21. For nozzle storage provided as possible And a body 28.

In addition, a state in which the front end side is integrally connected to the nozzle housing cylinder 28 and the hose 32 is connected to the rear end via an O-ring 29 and a seal member 30 provided in the inner rear portion of the nozzle housing cylinder 28. A flow passage coupling cylinder 31 having a flow passage 31c through which gas or liquid is circulated, and a rear end side outer peripheral portion 21d of the socket body 21 slidably provided in the axial direction, and a plurality of balls And a sliding cylindrical body 34 in which a tapered groove 34e1 is circulated along the circumferential direction of the inner surface of the distal end side round hole 34e so that the front and rear end holes 22e can be engaged and retracted.

  Furthermore, a gripping body 36 that is attached to the flow passage coupling cylinder 31 integrated with the nozzle housing cylinder 28 and can be gripped with one hand, a trigger lever 37 that is attached to the gripping body 36 and can be operated in two steps with one hand, A switch 39 with a knob attached to the grip body 36 facing the trigger lever 37, one end is connected to the sliding cylinder 34 in the initial state, and the other end is connected to the trigger lever 37 in the initial state. One end is connected to the connecting rod 40 and the sliding cylinder 34 and the other end is connected to the gripping body 36. The sliding cylinder 34 is connected to the sliding cylinder 34 by air pressure or hydraulic pressure. 21 and a sliding cylinder driving means 50 for applying a force in the direction of sliding to the rear side of 21.

  At this time, as shown in FIG. 1, the gripping body 36 for the user to grip the socket 20A with one hand is formed in an L-shaped box and is attached to the lower surface of the rectangular outer peripheral portion 31b of the flow path connecting cylinder 31. An air flow path (not shown) is formed in the interior between the front end portion 36a and the rear end portion 36b of the gripping body 36, and a sliding cylinder is driven in the rear end portion 36b of the gripping body 36. One end of the air hose 51 of the means 50 is connected, and the other end of the air hose 51 is connected to an air pump (not shown).

  The grip body 36 is attached to the flow path connecting cylinder 31 integrally connected to the nozzle housing cylinder 28, but the grip body 36 may be directly attached to the nozzle housing cylinder 28.

  Further, a trigger lever 37 that can be operated in two steps with one hand is rotatably attached to the side of the distal end portion 36a of the gripping body 36 via a pin 38, and is pressed according to the operation of the trigger lever 37. A switch 39 with a knob is provided to face the trigger lever 37.

  At this time, the trigger lever 37 is moved by the stroke S1 (FIG. 6) by the first stage operation, and is moved by the stroke S2 (FIG. 7) by the second stage operation, for a total stroke of S1 + S2. The amount is to be obtained.

  Then, when the switch 39 with a knob is pressed by the trigger lever 37, the sliding cylinder driving means 50 is actuated to open the air valve (not shown) provided in the gripping body 36 to start application of air pressure. It is supposed to be.

  Accordingly, when the user holds the grip body 36 with one hand and pulls the trigger lever 37 by one hand operation, the air sent from the air pump (not shown) from the rear end portion 36b side of the grip body 36 to the front end portion 36a. It is designed to flow toward the side.

  Further, a connecting rod 40 is interposed between the sliding cylinder 34 and the trigger lever 37. One end of the connecting rod 40 is located below the flange 34d of the sliding cylinder 34 in the initial state. And the other end is connected to an intermediate portion of the trigger lever 37 in the initial state via a pin 42.

  One end of a bifurcated pipe 52 is connected to the distal end portion 36 a of the gripping body 36, and the other end of the bifurcated pipe 52 is bifurcated. Two pipes 53 connected to the other end of the bifurcated pipe 52, 53 is connected to each front air chamber among the two air cylinders 54 and 54 attached to the projecting pieces 31d and 31d projecting from the left and right side surfaces of the rectangular outer peripheral portion 31b of the flow path coupling cylinder 31. Yes.

  Furthermore, two pistons 55, 55 projecting forward from the two air cylinders 54, 54 respectively are provided with nuts 56, 56 at left and right portions of the flange 34d formed on the rear end side of the sliding cylinder 34. Therefore, the sliding cylinder 34 is allowed to slide in the axial direction along the rear end side outer peripheral portion 21d (FIG. 3) of the socket body 21.

  In the first embodiment, the sliding cylinder driving means 50 is operated by air pressure, but hydraulic pressure may be used instead of air pressure.

  Here, the female socket 20A in the first embodiment will be described in detail. As shown in an enlarged view in FIG. 3, the socket main body 21 is located between the front end portion 21a and the rear end portion 21b. The formed front end side outer peripheral portion 21c, the rear end side outer peripheral portion 21d formed on the rear end side with a diameter larger than that of the front end side outer peripheral portion 21c, and the rear end side outer peripheral portion 21d. Is formed in a stepped annular shape with a sliding cylinder stopper flange portion 21e formed so as to protrude partly and having a larger diameter than the rear end side outer peripheral portion 21d.

  Further, a distal end side round hole 21f into which the distal end side outer peripheral portion 11c (FIGS. 1 and 2) of the plug body 11 is inserted and fitted is opened on the distal end portion 21a side of the socket body 21, and the distal end side An intermediate part round hole 21h (second flow passage) through which a gas or liquid flows following the round hole 21f is formed to have a diameter larger than the diameter of the front end side round hole 21f, and the intermediate part round hole 21h is continued. The rear end side round hole 21i is formed to a diameter larger than the diameter of the intermediate part round hole 21h up to the rear end part 21b.

  Further, between the distal end side outer peripheral portion 21c of the socket main body 21 and the distal end side round hole 21f, a plurality of long holes 21g penetrates at substantially equal intervals along the circumferential direction slightly behind the distal end portion 21a. A plurality of balls 22 are loosely fitted in the plurality of long holes 21g.

  At this time, the balls 22 loosely fitted in the long holes 21g of the socket body 21 are inserted into the round holes 21f on the distal end side of the socket body 21 at the initial stage when the plug body 11 (FIGS. 1 and 2) is not inserted. Each of the long holes 21g is inclined along the inner surface of the long hole 21g so that the diameter of each long hole 21g becomes smaller than the diameter of each ball 22 toward the tip-side round hole 21f. Only can protrude toward the tip side round hole 21f.

  In addition, a third compression spring 27 is fitted into the front portion of the intermediate round hole 21 h of the socket body 21, and the middle round hole 21 h and the rear end side round behind the third compression spring 27. A nozzle housing cylinder 28 is fitted into the hole 21i so as to be capable of reciprocating in the front-rear direction while the tip side is urged rearward by a third compression spring 27.

  The above-described nozzle housing cylinder 28 has a front end side outer peripheral portion 28c formed on the front end side between the front end portion 28a and the rear end portion 28b, and the front end side outer peripheral portion 28c and the front end side outer peripheral portion 28c. It is formed in a stepped annular shape with a rear end side outer peripheral portion 28d formed with a large diameter toward the rear end portion 28b.

  Further, a socket side flow passage (third flow passage) 28e for allowing gas or liquid to flow from the front end portion 28a side to the rear end portion 28b side inside the nozzle housing cylinder 28, and a socket side flow passage 28e. A rear end side round hole 28f having a diameter larger than the diameter is formed concentrically.

  Then, the socket side nozzle (second nozzle) 23 is fitted in the socket side nozzle bearing 25 supported by the second bearing support member 24 in the socket side flow passage 28e of the nozzle housing cylinder 28, and the second side. The compression spring 26 is housed so as to be freely opened and closed.

  The socket-side nozzle (second nozzle) 23 includes a tip shaft portion 23a on the tip side that contacts and separates from the tapered tip flange 12a (FIG. 2) of the plug-side nozzle 12 housed in the plug body 11, and a tip. A tapered intermediate flange 23b connected to the rear of the shaft portion 23a and having a diameter larger than that of the distal end shaft portion 23a, and connected to the rear of the tapered intermediate flange 23b and connected to the tapered intermediate flange 23b. Also, an intermediate shaft portion 23c having a small diameter and a rear end shaft portion 23d having a smaller diameter than the intermediate shaft portion 23c connected to the rear of the intermediate shaft portion 23c are integrally formed.

  At this time, the socket-side flow passage 28e of the nozzle housing cylinder 28 is formed with a tapered inner surface 28e1 inclined in a conical shape so that the inner diameter gradually decreases toward the distal end portion 28a. The socket-side nozzle 23 can be opened and closed by contacting and separating the tapered intermediate flange 23b of the socket-side nozzle 23 from the inner surface 28e1.

  Further, the second bearing support member 24 provided at an intermediate portion in the socket side flow passage 28e of the nozzle housing cylinder 28 is formed by a plurality of spokes provided radially along the outer periphery of the central socket side nozzle bearing 25. A plurality of through holes are formed, and the plurality of through holes allow gas or liquid to pass through the socket side flow passage 28e without any trouble.

  Since the rear end shaft portion 23d of the socket side nozzle 23 is fitted to and supported by the socket side nozzle bearing 25, the socket side nozzle 23 can slide in the axial direction of the socket side nozzle bearing 25. Yes.

  Further, a second compression spring 26 is fitted into the intermediate shaft portion 23c of the socket-side nozzle 23 between the taper-shaped intermediate flange portion 23b of the socket-side nozzle 23 and the socket-side nozzle bearing 25, and this second compression By the biasing force of the spring 26, the taper-shaped intermediate flange 23b of the socket-side nozzle 23 is brought into contact with the tapered inner surface 28e1 formed in the socket-side flow passage 28e of the nozzle housing cylinder 28, whereby the socket 20A is The socket-side nozzle 23 is in a closed state in an initial state where it is separated from the plug 10.

  In the initial state where the socket 20 </ b> A is separated from the plug 10, the tip end shaft portion 23 a of the socket side nozzle 23 protrudes into the intermediate portion round hole 21 h of the socket body 21. The tip position of the portion 23a is set so that the tapered tip flange portion 12a of the plug-side nozzle 12 provided in the plug body 10 cannot be pushed when connected to the plug 10 in the initial state.

  Further, a sealing member 30 having an O-ring 29 circulated is fitted behind the socket side flow passage 28e of the nozzle housing cylinder 28, and further, the annular tip of the flow passage connection cylinder 31 is placed behind the sealing member 30. A rear end side round hole 28f into which the outer peripheral portion 31a is fitted is opened toward the rear end portion 28b. And the leaking of gas or a liquid is prevented by abutting the front-end | tip part of the annular | circular front-end | tip outer peripheral part 31a of the flow path connection cylinder 31 with the sealing member 30 which made the O ring 29 circulate.

  Further, an O-ring 33 is fitted into an intermediate portion in the front end side round hole 21f of the socket body 21, and the front end side outer peripheral portion 11c (FIG. 1, FIG. 1) of the plug body 11 is inserted into the front end side round hole 21f of the socket body 21. When the 2) is fitted, the O-ring 33 prevents leakage of gas or liquid.

  Further, the sliding cylinder 34 that slides on the outer peripheral portion 21d on the rear end side of the socket body 21 has a connecting rod 40 and two on the rear side of the outer peripheral portion 34c formed between the front end portion 34a and the rear end portion 34b. A flange portion 34d for connecting the piston 55 (FIG. 1) is formed so as to protrude and is formed into a ring shape with a flange.

  Further, the sliding cylinder 34 has a front-end-side round hole 34e that is slightly larger than the diameter of the front-end-side outer peripheral portion 21c of the socket body 21 between the front-end portion 34a and the rear-end portion 34b. Further, the rear end side round hole 34f on the rear end side following the front end side round hole 34e is larger in diameter than the diameter of the front end side round hole 34e and slightly larger than the diameter of the rear end side outer peripheral portion 21d of the socket body 21. It is open.

  And the front end side outer peripheral part 21c and the rear end side outer peripheral part 21d of the socket main body 21 are fitted concentrically in the front end side round hole 34e and the rear end side round hole 34f of the sliding cylinder 34.

  Further, a tapered concave groove (second concave groove) 34e1 having a taper in the front and rear in the axial direction slightly rearward from the distal end portion 34a is formed on the inner surface of the distal end side round hole 34e of the sliding cylinder 34. The tapered groove 34e1 is formed with a diameter larger than the inner diameter of the tip-side round hole 34e, and the tapered groove 34e1 has a plurality of holes attached to the tip side of the socket body 21 to lock the plug 10. The ball 22 can be engaged so as to be able to advance and retract.

  Further, the rear end side round hole 34f of the sliding cylinder 34 and the socket body 21 in a state where the rear end side outer peripheral portion 21d of the socket body 21 is fitted in the rear end side round hole 34f of the sliding cylinder 34. A fourth compression spring 35 is fitted in a space formed between the distal end side outer peripheral portion 21c of the first compression spring 35 and the outer peripheral portion 21c.

  At this time, the fourth compression spring 35 has a tapered concave groove in which a plurality of balls 22 circulate around the inner surface of the distal end side round hole 34e of the sliding cylinder 34 in the initial state in which the socket 20A is separated from the plug 10. The sliding cylinder 34 is urged toward the tip end 21a side of the socket main body 21 so as to enter the inner side 34e1, in other words, the fourth compression spring 35 causes the sliding cylinder 34 to move on the socket main body 21. It has a function to make it an initial state.

  When the sliding cylinder 34 reaches the initial position on the socket body 21, a plurality of long holes 21g formed between the distal end side outer peripheral portion 21c and the distal end side round hole 21f of the socket body 21, and the sliding cylinder A plurality of balls 22 that are opposed to each other with a tapered groove 34e1 formed in the inner surface of the round hole 34e on the distal end side of the cylindrical body 34 and that are loosely fitted in the plurality of long holes 21g are formed on the distal end side of the socket body 21. While facing the round hole 21f, it is engaged with the tapered groove 34e1 of the sliding cylinder 34, and the tip 34a of the sliding cylinder 34 is slightly smaller than the tip 21a of the socket body 21. It protrudes forward.

  Here, operation | movement of 1 A of pipe joints of Embodiment 1 which concerns on this invention comprised as mentioned above is demonstrated in order of operation | movement using FIGS.

  First, in the first operation diagram of the pipe joint 1A according to the first embodiment shown in FIGS. 4A and 4B, the movable socket 20A is separated from the fixed plug 10, and the plug 10 and the socket 20A are separated. Are both in the initial state, and the trigger lever 37 attached to the socket 20A side so as to be operable in two stages is also in the initial state (the state in which 40 is not pulled), and is the state described above with reference to FIGS. It is the same as the state of FIG.

  Further, the male plug 10 attached to the cylinder B or the tank T has a tapered tip flange portion 12a of the plug-side nozzle 12 housed in the plug-side flow passage 11d of the plug body 11 in the first compression spring 15. The plug-side nozzle 12 is in a closed state in contact with the tapered inner surface 11d1 formed in front of the plug-side flow passage 11d by the urging force.

  On the other hand, the movable-side female socket 20A has a nozzle housing cylinder 28 in an intermediate round hole 21h and a rear end side round hole 21i formed in order on the rear side of the front end side round hole 21f of the socket body 21. Is moved to the rear side of the socket body 21 by the urging force of the third compression spring 27.

  Further, a tapered intermediate flange 23b of the socket side nozzle 23 housed in the socket side flow passage 28e of the nozzle housing cylinder 28 is formed in front of the socket side flow passage 28e by the biasing force of the second compression spring 26. The socket side nozzle 23 is in a closed state in contact with the tapered inner surface 28 e 1, and the distal end shaft portion 23 a of the socket side nozzle 23 protrudes into the intermediate portion round hole 21 h of the socket body 21.

  In addition, the trigger lever 37 that can be operated in two steps with one hand is not pulled, and the sliding cylinder 34 that slides along the outer peripheral portion 21d on the rear end side of the socket main body 21 is on the tip end 21a side of the socket main body 21. Move to and keep the initial state.

  Further, the plurality of balls 22 loosely fitted in the plurality of elongated holes 21g formed between the distal end side outer peripheral portion 21c of the socket body 21 and the distal end side round hole 21f are formed into the distal end side round holes 21f of the socket body 21. The front end portion 34a of the sliding cylinder 34 is slightly more than the front end portion 21a of the socket main body 21 while being engaged with a tapered groove 34e1 formed on the inner surface of the front end side round hole 34e of the sliding cylinder 34. Therefore, the sliding cylinder 34 has reached an initial state.

  When the sliding cylinder 34 and the trigger lever 37 are in the initial state, the distance between the flange 34d of the sliding cylinder 34 and the sliding cylinder stopper flange 21e of the socket body 21 is the trigger. The trigger lever 37 is separated from the switch 39 with the knob attached to the holding body 36 with a margin of the stroke S1 due to the first-stage operation. Yes.

  Next, the second operation diagram in the pipe joint 1A of the first embodiment shown in FIGS. 5A and 5B shows the movable side socket on the fixed side plug 10 when the trigger lever 37 is in the initial state. 20A is connected.

  Here, the user inserts the distal end side outer peripheral portion 11c of the plug body 11 into the distal end side round hole 21f of the socket body 21 while gripping the grip body 36 of the socket 20A with one hand.

  At this time, since the sliding cylinder 34 maintains the initial state with respect to the socket main body 21, the distance between the flange 34d of the sliding cylinder 34 and the sliding cylinder stopper flange 21e of the socket main body 21. Is kept separated by the stroke S1 by the first stage operation of the trigger lever 37.

  Further, when the distal end side of the plug body 11 is inserted into the socket body 21, it is loosely fitted into a plurality of long holes 21g formed between the distal end side outer peripheral portion 21c of the socket body 21 and the distal end side round hole 21f. The plurality of balls 22 engage with the tapered groove 11c2 of the plug main body 11 while abutting the front end side outer peripheral portion 11c of the plug main body 11, and the inner surface of the front end side round hole 34e of the sliding cylinder 34. The plug main body 11 is concentrically connected to the socket main body 21 because it engages with the tapered groove 34e1 formed in the above.

  When the plug 10 and the socket 20A are connected, if the user intentionally pulls out the socket 20A from the plug 10, the plurality of balls 22 can be detached from the tapered concave groove 11c2 of the plug body 11. .

  Further, since the nozzle housing cylinder 28 housed in the socket body 21 is moved to the rear side in the socket body 21 by the third compression spring 27, the distal end portion of the plug body 11 is placed in the socket body 21. Even if the 11a side is inserted, the tapered tip flange portion 12a of the plug-side nozzle 12 housed in the plug body 11 and the tip shaft portion 23a of the socket-side nozzle 23 housed in the nozzle housing cylinder 28 are close to each other. In this state, both nozzles 12 and 23 remain closed.

  Next, a third operation diagram in the pipe joint 1A of the first embodiment shown in FIGS. 6A and 6B is a trigger lever 37 that can be operated in two steps with one hand after the socket 20A is connected to the plug 10. The state which locked the socket 20A to the plug 10 by the operation of the 1st step of is shown.

  Here, when the user performs the first-stage operation on the trigger lever 37 while holding the holding body 36 of the socket 20A with one hand, the trigger lever 37 moves backward by the stroke S1 of the first stage. Then, it contacts the switch 39 with knob attached to the gripping body 36.

  A connecting rod 40 having one end connected to the flange 34d of the sliding cylinder 34 in the initial state and the other end connected to an intermediate portion of the trigger lever 37 in the initial state is also the first stage of the trigger lever 37. As the connecting rod 40 moves rearward by the stroke S1, the sliding cylinder 34 resists the urging force of the fourth compression spring 35 as the connecting rod 40 moves rearward. Since it slides toward the sliding cylinder stopper flange 21e along the portion 21d and the flange 34d of the sliding cylinder 34 contacts the sliding cylinder stopper flange 21e of the socket body 21, Further movement of the cylindrical body 34 is restricted.

  Further, when the sliding cylinder 34 slides to the rear side of the socket body 21 together with the connecting rod 40, the plurality of balls 22 loosely fitted in the plurality of long holes 21 g formed in the socket body 21 are slid. The sliding cylinder 34 comes out of the tapered concave groove 34e1 formed in the inner surface of the distal end side round hole 34e of the moving cylinder 34 and comes into contact with the inner surface of the distal end portion of the distal end side round hole 34e of the sliding cylinder 34. By pressing the plurality of balls 22 into the tapered groove 11c2 of the plug body 11 at the inner surface of the distal end portion of the distal end side round hole 34e, the plurality of balls 22 cannot move within the tapered groove 11c2 of the plug body 11. The socket 20A can be securely locked to the plug 10.

  At this time, the nozzle accommodating cylinder 28 accommodated in the socket main body 21 is kept in the state of being moved rearward in the socket main body 21 by the third compression spring 27, so that it is accommodated in the plug main body 11. Both the plug-side nozzle 12 and the socket-side nozzle 23 housed in the socket body 21 remain closed.

  On the other hand, if the user returns the trigger lever 37 to the initial state after locking the socket 20 </ b> A to the plug 10, the sliding cylinder 34 can be returned to the initial state via the connecting rod 30.

  Next, the fourth operation diagram in the pipe joint 1A of the first embodiment shown in FIGS. 7A and 7B shows the second operation of the trigger lever 37 after the socket 20A is locked to the plug 10. The state which opens the 1st, 2nd nozzles 12 and 23 is shown.

  Here, the user operates the trigger lever 37 while holding the holding body 36 of the socket 20A with one hand, and the trigger lever 37 is moved by the stroke S2 of the second step by this second operation. While being able to move to the rear side, the trigger lever 37 is pushed into the switch 39 with the knob attached to the grip body 36 with a click feeling.

  Then, when the switch 39 with the knob is pushed by the second stage operation of the trigger lever 37, an air valve (not shown) provided in the holding body 36 is opened, and the air sent from the pump (not shown) is supplied to the air hose 51. Then, the sliding cylinder driving means 50 is operated so as to be pushed into the front air chambers of the air cylinder 54 through the gripping body 36.

  At this time, the sliding cylinder 34 connecting the connecting rod 40 and the piston 55 has the flange 34d in contact with the sliding cylinder stopper flange 21e of the socket body 21, so that the sliding cylinder 34 is It cannot move to the rear side of the socket body 21.

  On the other hand, a force in the direction of sliding the sliding cylinder 34 toward the rear side of the socket body 21 is applied to the flange 34 d of the sliding cylinder 34 by the air pressure from the sliding cylinder driving means 50. However, the force due to the air pressure applied to the flange 34d becomes a reaction force for maintaining the length of the connecting rod 40, and this reaction force is one end of the connecting rod 40 connected to the flange 34d of the sliding cylinder 34. It is transmitted from the side to the other end side of the connecting rod 40 connected to the trigger lever 37 and transmitted to the gripping body 36 via the rigger lever 37.

  Further, since the reaction force transmitted to the gripping body 36 is transmitted to the nozzle housing cylinder 28 through the flow passage coupling cylinder 31 integral with the gripping body 36, the nozzle housing cylinder 28 has the length of the connecting rod 40. The trigger lever 37 can be moved by the stroke S2 of the second stage by moving to the front side in the intermediate part round hole 21h of the socket body 21 against the third compression spring 27 to maintain the above.

  When the nozzle housing cylinder 28 moves to the front side in the socket body 21, the plug housed in the plug body 11 by the tip shaft portion 23 a of the socket side nozzle 23 housed in the nozzle housing cylinder 28. The rear end of the intermediate shaft portion 23c of the socket-side nozzle 23 abuts against the urging force of the second compression spring 26 while pushing the tapered tip flange portion 12a of the side nozzle 12, A gap for allowing gas or liquid to pass between the tapered intermediate flange 23b of the socket-side nozzle 23 and the tapered inner surface 28e1 of the nozzle housing cylinder 28 is formed.

  At substantially the same time, the rear end of the intermediate shaft portion 12b of the plug-side nozzle 12 pressed by the socket-side nozzle 23 abuts against the plug-side nozzle bearing 14 against the urging force of the first compression spring 15, A gap through which gas or liquid is passed is formed between the tapered tip flange 12 a of the plug-side nozzle 12 and the tapered inner surface 11 d 1 of the plug body 11.

  Thus, after the socket 20A is securely locked to the plug 10, the plug-side nozzle 12 and the socket-side nozzle 23 are both opened by the second-stage operation of the trigger lever 37. There is no leakage of gas or liquid between them, and the gas or liquid can be surely passed from the socket 20A to the plug 10 after the plug 20 is locked to the plug 10.

  Therefore, the user can feel with one hand that the feel by the first stage operation of the trigger lever 37 is different from the feel by the second stage operation. Can be confirmed with certainty.

  Further, as a driving source for moving the nozzle housing cylinder 28 forward in the socket main body 21, the air pressure by the sliding cylinder driving means 50 is used, and the force by the air pressure is applied to the sliding cylinder 34. Thus, the nozzle housing cylinder 28 can be reliably moved to the front side in the socket body 21.

  Therefore, it is possible to provide the pipe joint 1A and the socket 20A according to the first embodiment, in which the socket 20A can be reliably connected to the plug 10 by one-hand operation.

  Although illustration is omitted here, the first embodiment is partially modified until the tip of the switch 39 with the knob attached to the gripping body 36 comes into contact with the trigger lever 37 waiting in the initial state. If the trigger lever 37 is operated, the switch 39 with knob is immediately pressed by the trigger lever 37 to activate the sliding cylinder driving means 50, and the sliding cylinder is operated during the entire stroke (S1 + S2) by the trigger lever 37. It is also possible to apply a force by air pressure (or hydraulic pressure) from the body driving means 50 to the flange 34d of the sliding cylinder 34.

  In this case, since the stroke S1 due to the first stage operation of the trigger lever 37 and the stroke S2 due to the second stage operation are automatically performed continuously, the user operates the trigger lever 37 only once. Therefore, although it is difficult to grasp the feeling with one hand, all the operations of the pipe joint 1A according to the first embodiment can be executed.

Embodiment 2

  FIG. 8 is a perspective view showing a socket 20B with a trigger lever according to the second embodiment. However, FIG. 8 also shows the plug 10 attached to the cylinder B or the tank T as in the embodiment, and the embodiment includes the plug 10 and the socket 20B with the trigger lever of the second embodiment. 1 is configured.

  The socket 20B with a trigger lever of the second embodiment shown in FIG. 8 has the same configuration as that of the socket 20A with the trigger lever of the first embodiment described above except for a part thereof. For the sake of convenience, the same reference numerals are given to the constituent members shown above, and the constituent members shown above will be appropriately described as necessary, and new constituent members different from those of the first embodiment will be described. A description will be given with reference numerals.

  As shown in FIG. 8, the socket 20B with a trigger lever according to the second embodiment (hereinafter referred to as the socket 20B) is also detachably attached to the plug 10 in the same manner as in the first embodiment. It is configured as a manual filling machine capable of filling T with gas or liquid.

  Similarly to the first embodiment, the pipe joint 1B according to the first embodiment also has a male plug 10 fixedly attached to a cylinder B or a tank T that accommodates a gas or a liquid, and two stages with one hand. A female socket 20B according to the second embodiment is provided that has an operable trigger lever 37 and is detachable from the plug 10.

  Then, the socket 20B on the movable side is held and connected to the plug 10 on the fixed side in the initial state of the trigger lever 37 by one hand, and then the socket 20B is connected to the plug 10 by the first stage operation of the trigger lever 37. After securely locking (latching), the plug-side nozzle 12 (FIG. 9) provided in the plug 10 and the socket-side nozzle 23 (FIG. 9) provided in the socket 20B by the second stage operation of the trigger lever 37. ) Is reliably opened, gas or liquid can be reliably passed from the socket 20B to the plug 10 in the same manner as in the first embodiment.

  On the other hand, in the pipe joint 1B of the second embodiment, the socket 20B is only partially different from the first embodiment.

  That is, in the socket (socket with a trigger lever) 20B of the second embodiment, a socket body 21, a plurality of balls 22 loosely fitted one by one in a plurality of long holes 21g formed in the socket body 21, A nozzle housing cylinder 28 that is movably provided in the socket main body 21 and accommodates a socket side nozzle (second nozzle) 23, and a flow path coupling cylinder that is integrally coupled to the nozzle housing cylinder 28. A body 31, a sliding cylinder 34 slidably provided in the axial direction along the rear end side outer peripheral portion 21 d of the socket body 21, and a flow path coupling cylinder 31 integrated with the nozzle housing cylinder 28. Is attached to the gripping body 36 and can be gripped with one hand, the trigger lever 37 is attached to the gripping body 36 and can be operated in two steps with one hand, one end is connected to the sliding cylinder 34 in the initial state, and the other end That it includes a connecting rod 40 connected to the trigger lever 37 in the initial state is the same structure as in the first embodiment.

  However, in the socket 20B of the second embodiment, the sliding cylinder driving means (50) and the sliding cylinder, which are driving sources for moving the nozzle housing cylinder 28 to the front side in the socket body 21 by air pressure. A switch (39) with a knob for operating the body driving means (50) is not provided, and the switch (39) can be moved forward and backward to give a click feeling to the operation of the trigger lever 37 instead of the switch with a knob (39). The only difference from the first embodiment is that the knob 45 is attached to the gripping body 36 so as to face the trigger lever 37.

  In the second embodiment, for convenience of explanation, the lower portion of the flange portion 34 of the sliding cylinder 34 and the intermediate portion of the trigger lever 37 are connected by a single connecting rod 40. If the connecting rod 40 is connected between the left and right sides of the flange 34 of the moving cylinder 34 and the intermediate portion of the trigger lever 37, the sliding cylinder 34 is connected to the socket body as compared with the case of one connecting rod 40. 21 can be smoothly slid along the rear end side outer peripheral portion 21d.

  Here, operation | movement of the pipe joint 2B of Embodiment 2 which concerns on this invention comprised as mentioned above is demonstrated in order of operation | movement using FIGS. 9-12.

  At this time, the operation of the pipe joint 2B of the second embodiment is different from the first embodiment only in that the sliding cylinder driving means (50) is deleted. In the fourth operation diagram (FIGS. 9 to 12), the same operations as those in the first to fourth operation diagrams (FIGS. 4 to 7) of the first embodiment are denoted by the same reference numerals and briefly described. The difference from Embodiment 1 will be mainly described.

  First, in the first operation diagram of the pipe joint 1B of the second embodiment shown in FIGS. 9A and 9B, the movable side socket 20B is separated from the fixed side plug 10, and the plug 10 and the socket 20B. Are both in the initial state, and the trigger lever 37 attached to the socket 20B side so as to be operable in two stages is also in the state in which the initial state is maintained.

  Further, the plug-side nozzle (first nozzle) 12 housed in the plug body 11 of the plug 10 and the movable body urged rearward by the third compression spring 27 in the socket body 21 of the socket 20B. Both the socket side nozzle (second nozzle) 23 housed in the nozzle housing cylinder 28 are in a closed state.

  In addition, the trigger lever 37 that can be operated in two steps with one hand is not pulled, and the sliding cylinder 34 that slides along the outer peripheral portion 21d on the rear end side of the socket main body 21 is on the tip end 21a side of the socket main body 21. Move to and keep the initial state.

  When the sliding cylinder 34 and the trigger lever 37 are in the initial state, the distance between the flange 34d of the sliding cylinder 34 and the sliding cylinder stopper flange 21e of the socket body 21 is the trigger. The trigger lever 37 is separated from the advanceable / retractable knob 45 attached to the holding body 36 with a margin of the stroke S1 due to the first-stage operation. ing.

  Next, the second operation diagram in the pipe joint 1B of the second embodiment shown in FIGS. 10A and 10B shows the movable side socket on the fixed side plug 10 when the trigger lever 37 is in the initial state. It is the state which connected 20B.

  Here, the user inserts the distal end side outer peripheral portion 11c of the plug body 11 into the distal end side round hole 21f of the socket body 21 while gripping the grip body 36 of the socket 20B with one hand.

  At this time, since the sliding cylinder 34 maintains the initial state with respect to the socket main body 21, the distance between the flange 34d of the sliding cylinder 34 and the sliding cylinder stopper flange 21e of the socket main body 21. Is kept separated by the stroke S1 by the first stage operation of the trigger lever 37.

  Further, when the distal end side of the plug body 11 is inserted into the socket body 21, it is loosely fitted into a plurality of long holes 21g formed between the distal end side outer peripheral portion 21c of the socket body 21 and the distal end side round hole 21f. The plurality of balls 22 engage with the tapered groove 11c2 of the plug main body 11 while abutting the front end side outer peripheral portion 11c of the plug main body 11, and the inner surface of the front end side round hole 34e of the sliding cylinder 34. The plug main body 11 is concentrically connected to the socket main body 21 because it engages with the tapered groove 34e1 formed in the above.

  Even if the distal end side of the plug main body 11 is inserted into the socket main body 21, the tapered distal end flange 12 a of the plug-side nozzle 12 accommodated in the plug main body 11 and the socket accommodated in the nozzle accommodating cylinder 28. Since the distal end shaft portion 23a of the side nozzle 23 is opposed to each other in a state of being close to each other, both the nozzles 12 and 23 remain closed.

  Next, a third operation diagram in the pipe joint 1B of the second embodiment shown in FIGS. 11A and 11B is a trigger lever 37 that can be operated in two steps with one hand after the socket 20B is connected to the plug 10. The state which locked the socket 20B to the plug 10 by the operation of the 1st step of is shown.

  Here, when the user performs the first-stage operation on the trigger lever 37 while holding the grip body 36 of the socket 20B with one hand, the trigger lever 37 moves backward by the stroke S1 of the first stage. , Abuts on the knob 45 attached to the gripping body 36.

  A connecting rod 40 having one end connected to the flange 34d of the sliding cylinder 34 in the initial state and the other end connected to an intermediate portion of the trigger lever 37 in the initial state is also the first stage of the trigger lever 37. As the connecting rod 40 moves rearward by the stroke S1, the sliding cylinder 34 resists the urging force of the fourth compression spring 35 as the connecting rod 40 moves rearward. Since it slides toward the sliding cylinder stopper flange 21e along the portion 21d and the flange 34d of the sliding cylinder 34 contacts the sliding cylinder stopper flange 21e of the socket body 21, Further movement of the cylindrical body 34 is restricted.

  Further, when the sliding cylinder 34 slides to the rear side of the socket body 21 together with the connecting rod 40, the plurality of balls 22 loosely fitted in the plurality of long holes 21 g formed in the socket body 21 are slid. The sliding cylinder 34 comes out of the tapered concave groove 34e1 formed in the inner surface of the distal end side round hole 34e of the moving cylinder 34 and comes into contact with the inner surface of the distal end portion of the distal end side round hole 34e of the sliding cylinder 34. By pressing the plurality of balls 22 into the tapered groove 11c2 of the plug body 11 at the inner surface of the distal end portion of the distal end side round hole 34e, the plurality of balls 22 cannot move within the tapered groove 11c2 of the plug body 11. The socket 20B can be securely locked to the plug 10.

  At this time, the nozzle accommodating cylinder 28 accommodated in the socket main body 21 is kept in the state of being moved rearward in the socket main body 21 by the third compression spring 27, so that it is accommodated in the plug main body 11. Both the plug-side nozzle 12 and the socket-side nozzle 23 housed in the socket body 21 remain closed.

  Next, the fourth operation diagram in the pipe joint 1B according to the second embodiment shown in FIGS. 12A) and 12B shows the first operation by the second operation of the trigger lever 37 after the socket 20B is locked to the plug 10. FIG. , The second nozzles 12 and 23 are opened.

  Here, the user operates the trigger lever 37 while holding the holding body 36 of the socket 20B with one hand, and the trigger lever 37 is moved by the stroke S2 of the second step by this second operation. The trigger lever 37 is pushed into the knob 45 attached to the grip body 36 with a click feeling.

  When the second operation of the trigger lever 37 is performed, the sliding cylinder 34 to which the connecting rod 40 is connected has the flange 34 d abutting against the sliding cylinder stopper flange 21 e of the socket body 21. Therefore, the sliding cylinder 34 cannot move to the rear side of the socket body 21.

  On the other hand, a reaction force for maintaining the length of the connecting rod 40 is applied to the flange 34d of the sliding cylinder 34, and this reaction force is applied to the connecting rod 40 connected to the flange 34d of the sliding cylinder 34. It is transmitted from one end side to the other end side of the connecting rod 40 connected to the trigger lever 37, and is transmitted to the gripping body 36 via the rigger lever 37.

  Further, since the reaction force transmitted to the gripping body 36 is transmitted to the nozzle housing cylinder 28 through the flow passage coupling cylinder 31 integral with the gripping body 36, the nozzle housing cylinder 28 has the length of the connecting rod 40. The trigger lever 37 can be moved by the stroke S2 of the second stage by moving to the front side in the intermediate part round hole 21h of the socket body 21 against the third compression spring 27 to maintain the above.

  When the nozzle housing cylinder 28 moves to the front side in the socket body 21, the plug housed in the plug body 11 by the tip shaft portion 23 a of the socket side nozzle 23 housed in the nozzle housing cylinder 28. The rear end of the intermediate shaft portion 23c of the socket-side nozzle 23 abuts against the urging force of the second compression spring 26 while pushing the tapered tip flange portion 12a of the side nozzle 12, A gap for allowing gas or liquid to pass between the tapered intermediate flange 23b of the socket-side nozzle 23 and the tapered inner surface 28e1 of the nozzle housing cylinder 28 is formed.

  At substantially the same time, the rear end of the intermediate shaft portion 12b of the plug-side nozzle 12 pressed by the socket-side nozzle 23 abuts against the plug-side nozzle bearing 14 against the urging force of the first compression spring 15, A gap through which gas or liquid is passed is formed between the tapered tip flange 12 a of the plug-side nozzle 12 and the tapered inner surface 11 d 1 of the plug body 11.

  Thus, after the socket 20B is securely locked to the plug 10, the plug-side nozzle 12 and the socket-side nozzle 23 are both opened by the second-stage operation of the trigger lever 37. There is no leakage of gas or liquid between them, and the gas or liquid can be surely passed from the socket 20B to the plug 10 after the plug 20 is locked to the plug 20.

  Further, since the connecting rod 40 is the only driving source for moving the nozzle housing cylinder 28 forward in the socket body 11, the structure of the socket 20B is simple.

  Therefore, it is possible to provide the pipe joint 1B and the socket 20B according to the second embodiment, in which the socket 20B can be reliably connected to the plug 10 by one-hand operation.

  In the socket with a trigger lever according to the present invention, the plug is not limited to the first and second embodiments, and the plug has a first nozzle that can be opened and closed that allows gas or liquid to pass through, and a socket locking means. The socket has a second nozzle that can be opened and closed to allow gas or liquid to pass through, a plug locking means, a gripping body that can be gripped with one hand, and a trigger lever that can be operated in two steps with one hand, and a trigger. After connecting the socket to the plug in the initial state of the lever, the plug locking means of the socket is operated by the first stage operation of the trigger lever, and this plug locking means is locked to the socket locked means of the plug. Thereafter, any structure is acceptable as long as the first and second nozzles can be opened by the second-stage operation of the trigger lever.

Embodiment 3

  FIG. 13 is a perspective view showing the overall configuration of the socket head part according to the third embodiment of the present invention. FIG. 13A shows a case where the socket head part is applied to the first embodiment, and FIG. The case where the first part is applied to the second embodiment is shown. FIG. 14 is an enlarged longitudinal sectional view showing the socket head part of the third embodiment.

  The socket head component 20C of the third embodiment shown in FIGS. 13A and 13B has the same configuration except for the configuration of the sockets 20A and 20B of the first and second embodiments described above. Here, for convenience of explanation, the same reference numerals are given to the constituent members shown above, and the constituent members shown above will be appropriately described as necessary, and the first and second embodiments will be described. Different constituent members will be denoted by new reference numerals and different points will be mainly described.

  As shown in FIGS. 13A, 13B, and 14, the socket head component 20C of the third embodiment is different from the sockets 20A, 20B of the first and second embodiments described above in that each socket 20A, 20B. The head part (head part) is configured to be replaceable.

  That is, in the sockets 20A and 20B according to the first and second embodiments described above, the socket-side nozzles (inside the nozzle housing cylinder 28 movably provided in the intermediate part round hole 21h of the socket body 21) (Second nozzle) 23, O-rings 29, 33 fitted in the socket body 21, and sliding cylinders engaged with the balls 22 loosely fitted in a plurality of long holes 21g formed in the socket body 21. If the body 34 or the like is used for a long period of time, the durability may deteriorate. In this case, if the entire socket 20A, 20B is replaced, it becomes expensive. Therefore, the leading part (leading part) of the socket 20A, 20B If you only replace it, it becomes cheaper.

  Therefore, as shown in FIG. 13A, when the socket head component 20C of the third embodiment is applied to the socket 20A of the first embodiment, the sliding cylinder previously shown in FIG. 34, the connecting rod 40 and the two pistons 55 are removed from the flange 34e, and the flow path connecting cylinder 31 side is also removed and replaced with a new socket head part 20C. What is necessary is just to connect again.

  On the other hand, as shown in FIG. 13B, when the socket head component 20C of the third embodiment is applied to the socket 20B of the second embodiment, the sliding cylinder shown in FIG. It is only necessary to remove the connecting rod 40 from the flange 34e of 34, and also remove the flow path connecting cylinder 31 side, replace it with a new socket head part 20C, and reconnect each member removed after the replacement.

  At this time, as shown in FIG. 14, in the socket head part 20 </ b> C of the third embodiment, the nozzle housing cylinder 28 movably provided in the intermediate part round hole 21 h of the socket body 21 is provided with the third compression spring 27. A slip prevention means is provided so as not to be pushed out from the rear side in the socket main body 21.

  As the above-described removal prevention means, the removal prevention long hole 21d1 is penetrated in a lower portion of the outer peripheral portion 21d on the rear end side of the socket body 21 with a length having a little margin with respect to the movement amount of the nozzle housing cylinder 28. The removal prevention pin 60 is press-fitted so as not to protrude into the rear end side round hole 28f from the long hole 21d1 for removal prevention toward the rear end side outer peripheral portion 28d of the nozzle housing cylinder 28. .

  Therefore, the socket head component 20C according to the third embodiment includes the socket body 21, the plurality of balls 22 loosely fitted one by one in the plurality of long holes 21g formed in the socket body 21, and the inside of the socket body 21. A nozzle housing cylinder 28 that is movably provided and houses a socket side nozzle (second nozzle) 23 and a rear end side outer peripheral portion 21d of the socket body 21 so as to be slidable in the axial direction. The sliding cylinder 34 has the same configuration as that of the first and second embodiments, but the socket body 21 has a long hole for preventing the removal of the nozzle housing cylinder 28 as a means for preventing the nozzle body 28 from coming out of the socket body 21. 21d1 and a drop prevention pin 60 are added.

  The sliding cylinder 34 is loosely fitted into a plurality of elongated holes 21g formed in the socket body 21 in a tapered concave groove (second concave groove) 34e1 formed in the inner surface of the distal end side round hole 34e. The balls 22 can be prevented from coming off by engaging with each other.

  As a result, according to the socket head component 20C of the third embodiment, when the durability of some members provided on the head side in the sockets 20A and 20B of the first and second embodiments is deteriorated, the head side is inexpensive. Only the (first part) can be replaced.

Note that if the removal preventing means for preventing the nozzle housing cylinder 28 added in the third embodiment from coming out of the socket body 21 is applied to the sockets 20A and 20B in the first and second embodiments, the socket 20A, Assembly work can be improved when assembling members other than the head part of 20B.

1A ... pipe joint in the first embodiment, 1B ... pipe joint in the second embodiment,
10 ... Male plug,
11 ... Plug body, 11a ... Front end, 11b ... Rear end,
11c ... tip side outer periphery, 11c1 ... collar, 11c2 ... first groove (tapered groove),
11d ... 1st flow path (plug side flow path), 11d1 ... Tapered inner surface,
12 ... 1st nozzle (plug side nozzle), 12a ... Tapered tip end collar,
12b: intermediate shaft portion, 12c: rear end shaft portion,
13 ... 1st bearing support member, 14 ... Socket side nozzle bearing,
15 ... first compression spring,
20A ... Socket with trigger lever of Embodiment 1,
20B ... Socket with trigger lever of embodiment 2,
20C—Socket head part of Embodiment 3,
21 ... Socket body, 21a ... Front end, 21b ... Rear end,
21c ... tip side outer peripheral part, 21d ... rear end side outer peripheral part, 21d1 ... elongate hole for omission prevention
21e ... Sliding cylinder stopper collar,
21f: tip side round hole, 21g: a plurality of long holes,
21h: second flow passage (intermediate part round hole), 21i ... rear end side round hole, 22 ... ball,
23 ... 2nd nozzle (socket side nozzle), 23a ... tip shaft part,
23b ... tapered intermediate flange portion, 23c ... intermediate shaft portion, 23d ... rear end shaft portion,
24 ... second bearing support member, 25 ... socket side nozzle bearing,
26 ... second compression spring, 27 ... third compression spring,
28 ... Nozzle housing cylinder, 28a ... tip, 28b ... back end, 28c ... tip side outer periphery,
28d ... rear end side outer periphery, 28e ... third flow passage (plug side flow passage),
28e1 ... tapered inner surface, 28f ... rear end side round hole,
29 ... O-ring, 30 ... sealing member,
31 ... Cylinder for connecting a flow passage, 31a ... An annular tip outer peripheral portion,
31b ... Square outer periphery, 31c ... Flow passage, 31d ... Projection piece,
32 ... Hose, 30 ... O-ring,
34 ... Sliding cylinder, 34a ... Tip, 34b ... Rear end, 34c ... Outer periphery,
34d ... collar part, 34e ... tip side round hole, 34e1 ... second groove (tapered groove),
34f ... Rear end side round hole,
35 ... Fourth compression spring,
36 ... Grasping body, 36a ... Front end, 36b ... Rear end,
37 ... Trigger lever, 38 ... Pin, 39 ... Switch with knob,
40 ... connecting rod, 41 ... pin, 42 ... pin, 45 ... knob,
50 ... Sliding cylinder driving means,
51 ... Air hose, 52 ... Forked pipe, 53 ... Pipe,
54 ... Air cylinder, 55 ... Piston, 56 ... Nut,
60 ... Pull-off prevention pin,
B ... cylinder, T ... tank, PS ... plug support member.

Claims (3)

A first flow passage formed in an annular inner peripheral portion for allowing gas or liquid to pass therethrough and stored in a state of being biased in a closing direction by a first compression spring in the first flow passage. A manual filling machine that is detachably connected to a plug having a plug body having a first nozzle that can be opened and closed, and a first concave groove that circulates in the circumferential direction of an annular outer periphery. Because
A tip-side round hole formed on the tip side inside an annular shape to detachably fit the tip side of the outer peripheral portion of the plug body, and the gas or liquid connected to the rear of the tip-side round hole A plurality of second flow passages formed to pass therethrough, an annular front end side outer peripheral portion and the front end side round hole are provided so as to penetrate along the circumferential direction, and the axial direction is formed long. A socket body having a plurality of elongated holes and a sliding cylindrical stopper collar formed on the rear end side of the annular outer peripheral portion;
A plurality of balls that are loosely fitted one by one into the plurality of elongated holes of the socket body, and a part of which can protrude into the tip side round hole;
A third flow passage formed inside the ring to allow the gas or liquid to pass therethrough, and an open / close accommodated in the third flow passage while being biased in a closing direction by a second compression spring And an annular outer peripheral portion is urged rearwardly by a third compression spring in the second flow passage of the socket body, and the second flow passage. A nozzle housing cylinder movably provided along the inside,
A round hole that is slidably fitted to the outer peripheral portion of the socket body, and a second hole that is circulated along the circumferential direction of the inner surface of the round hole so that the plurality of balls are slidably engaged. A sliding cylinder having a concave groove;
When the socket body is initially separated from the plug, the sliding cylinder is urged toward the tip end side of the socket body so that the plurality of balls enter the second concave groove. A compression spring of
A gripping body that is integrally attached to the nozzle housing cylinder and can be gripped with one hand;
A trigger lever attached to the gripper and operable in two stages with one hand;
A connecting rod having one end connected to the sliding cylinder in the initial state and the other end connected to the trigger lever in the initial state;
One end is connected to the sliding cylinder, the other end is connected to the gripping body, and the sliding cylinder is slid toward the rear side of the socket body with respect to the sliding cylinder by air pressure or hydraulic pressure. A sliding cylinder driving means for applying a force in a direction to be applied;
With
After connecting the socket to the plug by inserting the tip side of the plug body into the socket body in the initial state of the trigger lever and engaging the plurality of balls in the first concave groove, The sliding cylinder is moved by the movement of the connecting rod against the fourth compression spring so that the plurality of balls are detached from the second concave groove by the first stage operation of the trigger lever. The socket is locked to the plug by sliding toward the sliding cylinder stopper collar, and the movement of the sliding cylinder after the first stage operation of the trigger lever is the sliding cylinder. The nozzle housing cylinder is moved by the reaction force of the sliding cylinder driving means applied to the sliding cylinder by the second stage operation of the trigger lever while being restricted by the stopper flange. 3 compression spring The first and second nozzles are opened by moving the socket body to the tip side in the second flow path of the socket body and pushing the first nozzle with the second nozzle. A manual filling machine characterized in that it is configured. A first flow passage formed in an annular inner peripheral portion for allowing gas or liquid to pass therethrough and stored in a state of being biased in a closing direction by a first compression spring in the first flow passage. A manual filling machine that is detachably connected to a plug having a plug body having a first nozzle that can be opened and closed, and a first concave groove that circulates in the circumferential direction of an annular outer periphery. Because
A tip-side round hole formed on the tip side inside an annular shape to detachably fit the tip side of the outer peripheral portion of the plug body, and the gas or liquid connected to the rear of the tip-side round hole A plurality of second flow passages formed to pass therethrough, an annular front end side outer peripheral portion and the front end side round hole are provided so as to penetrate along the circumferential direction, and the axial direction is formed long. A socket body having a plurality of elongated holes and a sliding cylindrical stopper collar formed on the rear end side of the annular outer peripheral portion;
A plurality of balls that are loosely fitted one by one into the plurality of elongated holes of the socket body, and a part of which can protrude into the tip side round hole;
A third flow passage formed inside the ring to allow the gas or liquid to pass therethrough, and an open / close accommodated in the third flow passage while being biased in a closing direction by a second compression spring And an annular outer peripheral portion is urged rearwardly by a third compression spring in the second flow passage of the socket body, and the second flow passage. A nozzle housing cylinder movably provided along the inside,
A round hole that is slidably fitted to the outer peripheral portion of the socket body, and a second hole that is circulated along the circumferential direction of the inner surface of the round hole so that the plurality of balls are slidably engaged. A sliding cylinder having a concave groove;
When the socket body is initially separated from the plug, the sliding cylinder is urged toward the tip end side of the socket body so that the plurality of balls enter the second concave groove. A compression spring of
A gripping body that is integrally attached to the nozzle housing cylinder and can be gripped with one hand;
A trigger lever attached to the gripper and operable in two stages with one hand;
A connecting rod having one end connected to the sliding cylinder in the initial state and the other end connected to the trigger lever in the initial state;
With
After connecting the socket to the plug by inserting the tip side of the plug body into the socket body in the initial state of the trigger lever and engaging the plurality of balls in the first concave groove, The sliding cylinder is moved by the movement of the connecting rod against the fourth compression spring so that the plurality of balls are detached from the second concave groove by the first stage operation of the trigger lever. The socket is locked to the plug by sliding toward the sliding cylinder stopper collar, and the movement of the sliding cylinder after the first stage operation of the trigger lever is the sliding cylinder. The nozzle housing cylinder is moved to the third compression spring by a reaction force of the force from the connecting rod applied to the sliding cylinder by the second stage operation of the trigger lever while being restricted by the stopper flange. Against the above The first and second nozzles are both opened by moving to the tip side in the second flow passage of the ket body and pushing the first nozzle with the second nozzle. A manual filling machine characterized by the fact that A first flow passage formed in an annular inner peripheral portion for allowing gas or liquid to pass therethrough and stored in a state of being biased in a closing direction by a first compression spring in the first flow passage. A manual filling machine that is detachably connected to a plug having a plug body having a first nozzle that can be opened and closed, and a first concave groove that circulates in the circumferential direction of an annular outer periphery. The first part of
A tip-side round hole formed on the tip side inside an annular shape to detachably fit the tip side of the outer peripheral portion of the plug body, and the gas or liquid connected to the rear of the tip-side round hole A plurality of second flow passages formed to pass therethrough, an annular front end side outer peripheral portion and the front end side round hole are provided so as to penetrate along the circumferential direction, and the axial direction is formed long. A socket body having a plurality of elongated holes and a sliding cylindrical stopper collar formed on the rear end side of the annular outer peripheral portion;
A plurality of balls that are loosely fitted one by one into the plurality of elongated holes of the socket body, and a part of which can protrude into the tip side round hole;
A third flow passage formed inside the ring to allow the gas or liquid to pass therethrough, and an open / close accommodated in the third flow passage while being biased in a closing direction by a second compression spring And an annular outer peripheral portion is urged rearwardly by a third compression spring in the second flow passage of the socket body, and the second flow passage. A nozzle housing cylinder movably provided along the inside,
A round hole that is slidably fitted to the outer peripheral portion of the socket body, and a second hole that is circulated along the circumferential direction of the inner surface of the round hole so that the plurality of balls are slidably engaged. A sliding cylinder having a concave groove;
When the socket body is initially separated from the plug, the sliding cylinder is urged toward the tip end side of the socket body so that the plurality of balls enter the second concave groove. A compression spring of
A disconnection preventing means for preventing the nozzle housing cylinder from slipping out of the second flow passage of the socket body at an initial stage when the socket body is separated from the plug.
A leading part of a manual filling machine characterized by comprising:

Images