JP2006316871A - Safety joint coupling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety joint coupling device for easily coupling a safety joint with human power in the state of shutting off flammable fluid with a valve element. <P>SOLUTION: When an operator turns a handle 11, a shaft 5 is turned and angular moment is transmitted to a movable unit 4 via the shaft 5. The movable unit 4 is moved to a female joint 105b held by a fixed unit 3 in the state of holding a male joint 105a with the angular moment as motive power, and finally the male joint 105a is coupled with the female joint 105b. In this way, the angular moment is utilized for moving the movable unit 4 to couple the safety joint 105, and so great workload is produced with small force to couple the safety joint 105 with only human power even in the state that it is impossible to couple the safety joint 105 with only human power. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a safety joint connecting device that can easily connect a safety joint in a state where a flammable fluid is blocked by a valve body by human power.

  In recent years, consumer bulk supply systems have become widespread as LP gas supply systems. As shown in FIG. 16 (a), the consumer bulk supply system has a bulk storage tank S installed in a site such as a general house H, an apartment house, or a restaurant, and an LP gas tank mounted on the bulk lorry R to the bulk storage tank S. This is a system for supplying LP gas from T.

  FIG. 16B schematically shows the piping unit 100 connected to the LP gas tank T. The piping unit 100 includes a valve 101, a pump 102, a filling hose 104 wound around a hose reel 103, a safety joint 105, and a coupling connected to the bulk storage tank S in order from the upstream side. 106.

  When supplying LP gas from the LP gas tank T to the bulk storage tank S, the filling hose 104 wound around the hose reel 103 is extended and the coupling 106 is connected to the bulk storage tank S. When the pump 102 is driven using the driving force transmitted from the bulk lorry R, the LP gas stored in the LP gas tank T is supplied to the bulk storage tank S through the piping unit 100.

  FIG. 17 is a diagram showing, in time series, a state in which the safety joint 105 included in the above-described piping unit 100 is connected, FIG. 17A is separated, FIG. 17B is temporarily fixed, and FIG. Shows the safety joint 105 in a connected state.

  The safety joint 105 is a joint for connecting / separating the filling hose 104 and the coupling 106, and is constituted by a pair of joints of a male joint 105a and a female joint 105b. The male joint 105 a is connected to one end side of the filling hose 104. The female joint 105 b is connected to one end side of the coupling 106.

  As shown in FIG. 17A, when the safety joint 105 is separated, the flow path R1 of the male joint 105a is blocked by the first valve body 110, and the flow path R2 of the female joint 105b is the second valve. The body 111 is in a state of being blocked.

  Next, a case where the safety joint 105 is connected will be described. When connecting the safety joint 105, the sleeve 113 urged to the male joint 105a side by the coil spring 112 of the female joint 105b shown in FIG. The ball 116 protruding in the fitting groove 115 to be fitted with the outer cylinder 114 of the joint 105a is moved outward.

  When the outer cylinder 114 of the male joint 105a is pushed into the fitting groove 115 in this state, the ball 113 is supported by the outer cylinder 114 of the male joint 105a as shown in FIG. The body 110 and the second valve body 111 collide. Further, when the outer cylinder 114 of the male joint 105a is pushed into the fitting groove 115, as shown in FIG. 17C, the ball 116 is recessed in the outer cylinder 114 of the male joint 105a. The male joint 107a and the female joint 107b are connected to each other in the groove 117. The flow path R1 of the male joint 105a communicates with the first valve body 110 being pulled away from the seating portion, and the first valve body 110 also presses the second valve body 111 of the flow path R2 of the female joint 105b. As a result, the second valve body 112 is separated from the seating portion and communicates.

  Thus, by connecting the safety joint 105, the flow path of the filling hose 105 connected to the safety joint 105 and the flow path of the coupling 106 can be brought into communication. When the safety joint 105 is separated, the flow path is blocked by the first valve body 110 for the male joint 105a and the second valve body 111 for the female joint 105b. Even if the safety joint 105 is separated, it is possible to prevent the LP gas from being discharged from the filling hose 105 and the coupling 106 to the outside.

  However, when the safety joint 105 described above is separated during the supply of LP gas, the first valve body 110 and the second valve body 111 will receive the internal pressure of LP gas, for example, the environmental temperature is high in summer, When the internal pressure of LP gas is high, there is a problem that the separated safety joint cannot be connected manually again unless the internal pressure of LP gas is lowered or the LP gas is discharged to the outside. .

  Therefore, conventionally, when such a situation occurs, LP gas cannot be discarded on the spot due to the property of being flammable, and the LP gas collected on the filling hose or coupling is purposely returned to the base. As a result, it was necessary to recover the gas, which was an obstacle to efficient LP gas filling work.

  The present invention has been made to solve the above-described problems, and provides a safety joint coupling device that can easily connect a safety joint in a state where a flammable fluid is blocked by a valve body by human power. It is intended to provide.

  In order to achieve this object, a safety joint connecting device according to claim 1 includes a pair of joints that connect each of two flow path forming members that form a flow path of a flammable fluid, and the pair of joints. By connecting, the flow path of the two flow path forming members is communicated, and the pair of joints are separated to connect a safety joint including a valve body that blocks the two flow paths. A base portion placed on the placement surface, a holding body that holds one of the pair of joints with respect to the base portion, and the other joint that is coaxial with the one joint held by the holding body. And a coupling mechanism for coupling the pair of joints by pushing the other joint into the one joint against the drag of the valve body using a given rotational moment. ing.

  The safety joint coupling device according to claim 2 is the safety joint coupling device according to claim 1, wherein the coupling mechanism transmits a power for coupling the pair of joints as a rotational moment, and its power. Using the rotational moment transmitted from the transmission mechanism as a motive power, while holding the other joint coaxially with the one joint held by the holding body, it is directed toward the one joint integrally with the other joint. And a movable body configured to be movable substantially linearly.

  The safety joint coupling device according to claim 3 is the safety joint coupling device according to claim 2, wherein the power transmission mechanism extends along a moving direction of the moving body, and the moving body is screwed in the middle thereof. The shaft includes a shaft rotatably supported with the extending direction as a central axis, and a handle coupled to one end of the shaft.

  The safety joint coupling device according to claim 4 is the safety joint coupling device according to claim 2, wherein the power transmission mechanism is coupled to the moving body and pivotally supported with respect to the base portion. It is composed of levers.

  The safety joint coupling device according to claim 5 is the safety joint coupling device according to claim 4, wherein the lever is configured to be detachable, and the mounting position of the lever is at least along the moving direction of the movable body. There are more than two places.

  The safety joint coupling device according to claim 6 is the safety joint coupling device according to claim 4 or 5, wherein the bottom surface of the base portion is a direction in which the moving body faces one of the joints held by the holding body. Inclined so as to rise.

  The safety joint coupling device according to claim 7 is the safety joint coupling device according to any one of claims 1 to 6, wherein the holding body includes a first standing wall standing from the base portion, and a first standing wall of the first standing wall. A first cutout portion formed by cutting out a part and holding at least one of the one joints.

  A safety joint coupling device according to an eighth aspect is the safety joint coupling device according to the seventh aspect, wherein a second vertical wall standing in parallel with the first vertical wall and a part of the second vertical wall are notched. And a second cutout portion for holding the one type of joint different from the type that can be held by the first cutout portion.

  According to the safety joint coupling device of the first aspect, the other joint is held coaxially with the one joint by the coupling mechanism, and the other joint is attached to the one joint by using the applied rotational moment. The pair of joints are connected by being pushed against the drag. In other words, since a larger amount of work can be generated with a small force by using the rotational moment, even a pair of joints that cannot be connected with only human power can be connected with only human power. There is an effect.

  According to the safety joint coupling device according to claim 2, in addition to the effect exhibited by the safety joint coupling device according to claim 1, the other joint is configured to be movable substantially linearly toward one joint. Since the rotational moment is used as the power of the moving body, it is possible to equalize the pressure when pushing the other joint into the one joint. .

  In the safety joint coupling device according to the first aspect, for example, the coupling mechanism can be configured by a lever that can rotate with respect to the base portion while holding the other joint. However, in such a case, since the lever holding the other joint is directly rotated, the other joint cannot be pushed substantially linearly into the one joint, and the pair is distorted. There is a possibility that an adverse effect that the joints are connected. On the other hand, according to the safety joint coupling device of the second aspect, it is possible to suppress the occurrence of this adverse effect and to push the other joint into the one joint with a good balance.

  According to the safety joint coupling device of the third aspect, in addition to the effect of the safety joint coupling device of the second aspect, the power for moving the moving body is such that the shaft is rotated by the operator turning the handle. And transmitted to the moving body through the shaft. Therefore, there is an effect that a rotational moment can be given to the moving body with a simple configuration.

  According to the safety joint coupling device of the fourth aspect, in addition to the effect exhibited by the safety joint coupling device according to the second or third aspect, the power for moving the moving body is obtained by rotating the lever by the operator. Then, it is transmitted to the moving body through the connecting portion with the lever. Therefore, there is an effect that a rotational moment can be given to the moving body with a simple configuration.

  According to the safety joint coupling device of claim 5, in addition to the effect of the safety joint coupling device of claim 4, the lever is configured to be detachable, and the mounting position of the lever is the moving direction of the moving body. Accordingly, at least two or more types of joints having different sizes can be connected, and the versatility of the apparatus can be improved.

  According to the safety joint coupling device of the sixth aspect, in addition to the effect exhibited by the safety joint coupling device according to the fourth or fifth aspect, the bottom surface of the base portion is connected to the one joint held by the holding body. Therefore, when the base portion is placed on a horizontal plane, the moving body is inclined downward in the direction toward the holding body. In this case, a large force is required in the vertical direction to rotate the lever, but it is easy to apply a large force in the vertical direction by, for example, a method of applying its own weight. There is an effect that can be done.

  According to the safety joint coupling device according to claim 7, in addition to the effect of the safety joint coupling device according to any one of claims 1 to 6, the holding body is formed by cutting out a part of the first standing wall, Since the 1st notch part which hold | maintains at least 1 type of one coupling is provided, at least 1 type or more of one coupling can be hold | maintained and there exists an effect that the versatility of an apparatus can be improved. .

  According to the safety joint coupling device according to claim 8, in addition to the effect produced by the safety joint coupling device according to claim 7, a part of the second standing wall standing in parallel with the first standing wall is cut out, Since the second cutout portion that holds one type of joint different from the type that can be held by the first cutout portion is provided, it is possible to connect at least two types of pairs of joints.

  Further, for example, when connecting the second one joint formed shorter than the length of the first one joint held in the first cutout portion, it is erected on the moving body side in parallel with the first standing wall. By holding the second one joint in the second notch formed in the second standing wall, the connection position of the second one joint and the connection position of the first one joint are brought closer to each other. be able to. Therefore, for example, by setting the connection position in the middle of a highly stable device, there is an effect that at least two types of pairs of joints can be connected in a stable state.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the accompanying drawings. First, the configuration of the safety joint coupling device 1A of the first embodiment will be described with reference to FIGS. 1A is a side view of the safety joint coupling device 1A, FIG. 1B is a plan view of the safety joint 1A in the direction of arrow Ib in FIG. 1A, and FIG. 2A is FIG. FIG. 2B is a side view of the safety joint 1A as viewed in the direction of arrow IIb in FIG. 1A. The safety joint connecting device 1A is a device that can easily connect the safety joint 105 (see FIG. 17) in a state where LP gas (flammable fluid) is blocked by the valve body by human power. In this embodiment, the case where the safety joint 105 described in FIG. 17 is connected will be described.

  1 A of safety coupling coupling devices are mainly arrange | positioned so that reciprocation is possible in the arrow R direction and the arrow L direction with respect to the base part 2, the fixed unit 3 currently fixed on the base part 2, and the fixed unit 3 And a shaft 5 extending along the moving direction of the moving unit 4.

  The base portion 2 is a portion that becomes a base of the safety joint coupling device 1A, and is along a substantially rectangular bottom wall 2a, a side wall 2b that hangs down from a longitudinal edge of the bottom wall 2a, and a lower end portion of the side wall 2b. And a flange 2c extending in the horizontal direction. The safety joint coupling device 1A is used with the flange 2c mounted on the mounting surface, and the bottom wall 2a is configured as a raised bottom type that is raised from the mounting surface by the height of the side wall 2b. Operability is improved.

  The fixed unit 3 is a unit that holds the female joint 105b of the safety joint 105 with respect to the base portion 2, and includes a rectangular bottom wall 3a fixed on the bottom wall 2a of the base portion 2, and a bottom And four side walls standing from the edge of the wall 3a. The four side walls are two inverted L-shaped walls 3b, 3b of a substantially inverted L shape (see FIG. 1A) standing from the longitudinal edge of the bottom wall 3a, and an inverted L-shaped wall 3b. The first holding wall 3c standing from the edge in the short direction of the bottom wall 3a on the side where the height of the bottom wall 3a is high (the right side in FIG. 1A), and the bottom wall 3a facing the first holding wall 3c And an opposing wall 3d erected from the edge in the short direction.

  Further, as shown in FIG. 2A, the first holding wall 3 c includes a first cutout portion 6 formed by cutting out in an arc shape from the upper end portion in the drawing downward, and a first cutout portion 6. A second cutout portion 7 is formed which is continuously formed downward and cut in an arc shape smaller than the first cutout portion 6. In the present embodiment, the female joint 105 b of the safety joint 105 is held by the first cutout portion 6, and the second cutout portion 7 has a female joint 105 b held by the first cutout portion 6. Another female joint of different diameter is held.

  Each of the inverted L-shaped walls 3b and 3b has an elliptical long hole 13 formed therein. When the female joint 105b is set in the first notch 6, the long hole 13 is used to pass the string through the two long holes 13 and to fix the female joint 105b more firmly. .

  The moving unit 4 is a unit that moves toward the female joint 105b held by the fixed unit 3 integrally with the male joint 105a while holding the male joint 105a of the safety joint 105. A rectangular bottom wall 4a placed so as to fit on the bottom wall 3a, and four side walls standing from the edge of the bottom wall 4a. The four side walls include two substantially L-shaped walls 4b and 4b standing from both longitudinal ends of the bottom wall 4a (see FIG. 1A), and an L-shaped wall 4b, On the side where the height of 4b is high (the left side in FIG. 1 (a)), a second holding wall 4c erected from the edge in the short direction of the bottom wall 4a, and the bottom wall 4a facing the second holding wall 4c. The movable unit 4 is disposed so as to be surrounded by the fixed unit 3.

  Further, as shown in FIG. 2B, the second holding wall 4c includes a third cutout portion 9 formed by cutting out in an arc shape downward from the upper end portion in the drawing, and a third cutout portion 9. A fourth cutout portion 10 is provided which is continuously formed downward and cut in an arc shape smaller than the third cutout portion 9. In the present embodiment, the male joint 105 a of the safety joint 105 is held by the third cutout portion 9, and the fourth cutout portion 10 is different from the male joint 105 a held by the third cutout portion 9. Another male joint of different diameter is retained.

  Further, the third notch portion 9 and the first notch portion 6 described above are configured so that the male notch 105a is held by the third notch 9 and the female joint 105b is held by the first notch 9, and the male notch 105b is held. The mold joint 105a and the female joint 105b are set to be coaxial. The fourth notch 10 and the second notch 7 described above are set in the same manner. Thus, two types of safety joints with different sizes can be connected by forming two notches with different sizes in the first holding wall 3c and the second holding wall 4c.

  The shaft 5 is for transmitting power for moving the moving unit 4, and includes a first holding wall 3c and an opposing wall 3d of the fixed unit 3, and a second holding wall 4c and an opposing wall 4d of the moving unit 4. , And is supported rotatably about the axial direction. Further, a male screw is threaded on the surface, and a nut 8 welded to the inner surface of the facing wall 4d of the moving unit 4 is screwed onto the male screw. Further, a handle 11 is attached to the end portion on the first holding wall 3c side, and a stopper 12 for preventing the shaft 5 from being pulled out is screwed to the other end side.

  Therefore, when the operator holds the handle 11 and rotates the handle 11 clockwise, the rotational moment is applied to the moving unit 4 via the shaft 5, and the moving unit 4 moves along the shaft 5 to the first support wall 3 c. Move toward (in the direction of arrow R). Conversely, when the handle 11 is rotated counterclockwise, the moving unit 4 moves along the shaft 5 in the direction away from the first support wall 3c (in the direction of the arrow L).

  Next, with reference to FIG. 3, the case where the safety joint 105 in the separated state is connected using the safety joint connecting apparatus 1A will be described. FIGS. 3A and 3B are diagrams showing a state in which the safety joint 105 is connected in time series. FIG. 3A is a separated view, FIG. 3B is a temporary fix, and FIG. 3C is a connected safety joint. 105 is shown. In addition, about 1 A of safety coupling devices, it shall attach | subject a code | symbol only about the main structures.

  When connecting the safety joint 105 in the separated state, first, the handle 11 is rotated counterclockwise, and the distance between the first holding wall 3c and the second holding wall 4c is such that the male joint 105a and the female joint 105b. Adjust so that it is longer than the total length. Then, as shown in FIG. 3A, the portion connected to the male joint 105a is fitted into the third cutout portion 9, and the portion connected to the female joint 105b is fitted into the first cutout portion 6. The male joint 105a and the female joint 105b are held. In this case, since the female joint 105b can be supported by the first holding wall 3c and the male joint 105a can be supported by the second holding wall 4c, the male joint 105a can be pushed against the female joint 105b in a stable state. Can be included.

  When the male joint 105a and the female joint 105b are held, the handle 11 is rotated clockwise while pressing the sleeve 113 of the female joint 105b. Then, the moving unit 4 moves to the first holding wall 3c side (arrow R direction) while holding the male joint 105a, the tip of the male joint 105a engages with the female joint 105b, and the safety joint 105 Then, the temporarily fixed state shown in FIG. When the handle 11 is further rotated clockwise, the moving unit 4 further moves toward the first holding wall 3c (in the direction of the arrow R), and finally, as shown in FIG. The male joint 105a and the female joint 105b constituting the joint 105 are connected.

  Thus, according to the safety joint coupling device 1A of the first embodiment, the power for moving the moving unit 4 is such that the shaft 5 rotates when the operator turns the handle 11, and the shaft 5 rotates through the shaft 5. It is transmitted to the mobile unit 4. Therefore, a rotational moment as power can be given to the moving unit 4 with a simple configuration. Moreover, since the movement unit 4 is moved using the rotational moment and the safety joint 105 is connected, a larger amount of work can be generated with a small force. Therefore, even if the safety joint 105 in a separated state is subjected to a high internal pressure by LP gas, and the safety joint 105 cannot be connected by human power alone, the safety joint 105 is connected by human power alone. can do.

  Next, the configuration of the safety joint coupling device 1B of the second embodiment will be described with reference to FIGS. 4A is a side view of the safety joint coupling device 1B, FIG. 4B is a plan view of the safety joint coupling device 1B as viewed in the direction of arrow IVb in FIG. 4A, and FIG. FIG. 5A is a side view of the safety joint coupling device 1B as viewed in the direction of arrow Va in FIG. 5A, and FIG. 5B is a cross-sectional view of the safety joint coupling device 1B along the arrow Vb-Vb section line in FIG.

  The safety joint coupling device 1 </ b> B is disposed so as to be reciprocally movable in the arrow R direction and the arrow L direction with respect to the base unit 15, the fixed unit 16 fixed on the base unit 15, and the fixed unit 16. A moving unit 17 and a lever 18 that can be rotated about an axis D and an arrow U about a rotating shaft 30 are provided to move the moving unit 17.

  The base portion 15 is a portion that serves as a base of the safety joint coupling device 1B, and has a substantially rectangular bottom wall 15a, a side wall 15b that hangs down from the longitudinal direction of the bottom wall 15a, and a horizontal direction along the end of the side wall 15b And a flange 15c extending in the direction. Further, the side wall 15b is configured such that the height from the bottom wall 15a gradually decreases in the direction of the arrow R. Therefore, when the safety joint coupling device 1B is placed on a horizontal placement surface, it is placed in a state of being inclined downward in the direction of arrow R (see FIG. 7A).

  The fixing unit 16 is a unit that holds the female joint 105b of the safety joint 105 with respect to the base portion 2, and has a rectangular bottom wall 16a fixed on the bottom wall 15a and an edge of the bottom wall 16a. And three side walls standing from the section. The three side walls have two triangular walls 16b and 16b having a substantially triangular shape (see FIG. 4A) standing from both longitudinal edges of the bottom wall 16a, and the height of the triangular wall 16b. On the higher side (the right side in FIG. 4 (a)), a first holding wall 16c is provided standing from the edge of the bottom wall 3a in the short direction.

  Further, as shown in FIG. 5A, the first holding wall 16 c includes a first cutout portion 19 formed by cutting out in an arc shape from the upper end portion in the drawing downward, and a first cutout portion 19. A second cutout portion 20 is provided which is continuously formed downward and cut in an arc shape smaller than the first cutout portion 19. In the present embodiment, the female joint 105 b of the safety joint 105 is held in the first notch 19. Further, in the second cutout portion 7, when a female joint having a different size from the female joint 105 b held in the first cutout portion 19 is held in a third cutout portion 23 described later, the female joint It is a part for letting the flow-path formation member connected to pass through.

  Further, a second holding wall 21 is erected and supported by support walls 22 and 22 protruding from the inner surface of the first holding wall 16c at a position facing the first holding wall 16c. As shown in FIG. 5A, 21 is also provided with a third cutout portion 23 that is formed by cutting out from the upper end portion in an arc shape downward. The third cutout portion 23 is a portion for holding a female joint having a different size from the female joint 105b held by the first cutout portion 19 (see FIG. 8A).

  The moving unit 17 is a unit that moves toward the female joint 105b held by the fixed unit 16 integrally with the male joint 105a while holding the male joint 105a of the safety joint 105. The bottom wall 17a is placed on the bottom wall 16a, and three side walls are erected from the edge of the bottom wall 17a. The three side walls are provided with two triangular walls 17b and 17b having a substantially triangular shape (see FIG. 4A) standing from both longitudinal ends of the bottom wall 17a, and the height of the triangular wall 17b. On the higher side (left side in FIG. 4 (a)), a third holding wall 17c is provided standing from the edge of the bottom wall 17a in the short direction.

  The end of the bottom wall 17a of the moving unit 17 is disposed between the bottom wall 16a of the fixed unit 16 and a tongue piece 33 extending substantially horizontally from the lower end of the second holding wall 21, so that the moving unit 17 moves. In this case, the mobile unit 17 is prevented from floating. The end portion of the tongue piece 33 is formed to warp upward so that the bottom wall 17a can easily enter.

  Further, as shown in FIG. 5 (b), the third holding wall 17 c includes a fourth cutout portion 24 formed by cutting out in a circular arc shape downward from the upper end portion in the drawing, and a fourth cutout portion 24. A fifth cutout portion 25 is provided which is continuously formed downward and cut in an arc shape smaller than the fourth cutout portion 24. In the present embodiment, the male joint 105 a of the safety joint 105 is held by the fourth cutout portion 24. The fifth notch 25 is connected to the male joint when a male joint different from the male joint 105a fitted in the fourth notch 24 is held in a sixth notch 28 described later. It is a part for letting a channel formation member pass.

  Further, a fourth holding wall 26 is erected and supported by support walls 27, 27 protruding from the inner surface of the third holding wall 17c at a position facing the third holding wall 17c. As shown in FIG. 5B, 26 is also provided with a sixth cutout portion 28 that is formed by cutting out in a circular arc shape downward from the upper end portion in the drawing. The sixth cutout portion 28 is a portion that holds a male joint having a size different from that of the male joint 105a held in the fourth cutout portion 24 (see FIG. 8A).

  The lever 18 transmits power for moving the moving unit 17, and is formed so as to surround the two triangular walls 16b, 16b of the fixed unit 16 from the outside in a substantially U-shape. 18a and a handle portion 18b formed by bending one end of the connecting portion 18a.

  The connecting portion 18 a is pivotally supported on the rotary shafts 30, 30 protruding from the two triangular walls 16 b, 16 b of the fixed unit 16. A long hole 31 is formed in the connecting portion 18 a, and a connecting shaft 32 that protrudes from the triangular wall 17 b of the moving unit 17 is inserted into the long hole 31.

  Therefore, when the operator grasps the handle portion 18b of the lever 18 and rotates the lever 18 around the rotation shaft 30 in the direction of the arrow D, the moving unit 17 moves as the connecting shaft 32 moves along the long hole 32. Moves toward the first holding wall 16c (in the direction of arrow R). Conversely, when the lever 18 is rotated in the direction of the arrow U, the moving unit 17 moves in the direction away from the first holding wall 16c (in the direction of the arrow L).

  Next, with reference to FIG. 6, the case where the safety joint 105 in the separated state is connected using the safety joint connecting device 1B will be described. FIGS. 6A and 6B are diagrams showing a state in which the safety joint 105 is connected in time series. FIG. 6A is a separated view, FIG. 6B is temporarily fixed, and FIG. 6C is a connected safety joint. 105 is shown. In addition, about the safety joint coupling device 1B, it shall attach | subject a code | symbol only about the main structures.

  When connecting the safety joint 105 in the separated state, first, the lever 18 is rotated in the direction of the arrow U, and the distance between the first holding wall 16c and the third holding wall 17c is such that the male joint 105a and the female The total length with the joint 105b is adjusted. Then, as shown in FIG. 6A, the portion connected to the male joint 105a is fitted into the fourth cutout portion 24, and the portion connected to the female joint 105b is fitted into the first cutout portion 19. The male joint 105a and the female joint 105b are held.

  When the male joint 105a and the female joint 105b are held, the lever 18 is rotated in the direction of arrow D while holding the sleeve of the female joint 105b. Then, the moving unit 17 moves to the first holding wall 16c side (in the direction of arrow R) while holding the male joint 105a, the tip of the male joint 105a is engaged with the female joint 105b, and the safety joint 105 is Then, the temporarily fixed state shown in FIG. Further, when the lever 18 is further rotated in the direction of arrow D, the moving unit 17 is further moved to the first holding wall 16c side (in the direction of arrow R), and finally, as shown in FIG. The male joint 105a and the female joint 105b constituting the safety joint 105 are connected.

  Thus, according to the safety joint coupling device 1 </ b> B of the second embodiment, the power for moving the moving unit 17 is transmitted to the moving unit 17 by rotating the lever 18. Therefore, a rotational moment as power can be given to the moving unit 17 with a simple configuration. Further, similarly to the first embodiment described above, the safety joint 105 is connected by moving the moving unit 17 using the rotational moment, so that the safety joint 105 can be connected only by human power.

  Next, the force applied to the lever 18 will be described with reference to FIG. FIG. 7A is a side view of the safety joint coupling device 1B in the state of FIG. 6B described above, and FIG. 7B is a safety joint coupling device 1B in the state of FIG. 6B described above. The safety joint coupling device 1X which comprised the base part 15 horizontally is shown.

  The safety joint coupling device 1B is configured such that the bottom surface of the base portion 15 is inclined upward along the moving direction of the moving unit 17, and therefore when the safety joint coupling device 1B is placed on the horizontal placement surface S. As shown in FIG. 7A, the inclination is inclined from the second holding wall 17c side toward the first holding wall 16c side.

  In this case, the lever 18 of the safety joint coupling device 1B shown in FIG. 7 (a) and the lever 18 of the safety joint coupling device 1X shown in FIG. 7 (b) are rotated with the same force. Is broken into a vertical direction and a horizontal direction, the force required in the vertical direction is larger in the safety joint coupling device 1B shown in FIG. 7A, and the force required in the horizontal direction is the safety shown in FIG. 7B. It can be seen that the coupling device 1X is larger. That is, the base portion 15 is configured to be inclined as in the safety joint coupling device 1B, and a large force is required in the vertical direction. 18 can be easily added.

  Next, referring to FIG. 8, the safety joint coupling device 1 </ b> B is used to hold the female joint 205 b in the third cutout portion 23 of the second holding wall 21 and the sixth cutout portion 28 of the fourth holding wall 26. The case where the male joint 205a is held and the male joint 205a and the female joint 205b are connected will be described. FIG. 8A is a view showing a state where the male joint 205a and the female joint 205b are set on the safety joint connecting device 1B, and FIG. 8B is a view shown in FIG. It is the same and is a figure which shows the state which set the male type | mold joint 105a and the female type | mold joint 105b to the safety joint coupling device 1B.

  The lengths of the male joint 205a and the female joint 205b are shorter than the lengths of the male joint 105a and the female joint 105b. When the male joint 205a and the female joint 205b configured as described above are connected, as shown in FIG. 8A, the third holding wall 17c is erected more than the first holding wall 16c. The female joint 205b is held in the third notch 23 formed in the second holding wall 21, and is formed on the fourth holding wall 26 standing on the first holding wall 16c side with respect to the third holding wall 17c. The male joint 205b is held in the sixth cutout portion 28.

  By holding the male joint 205a and the female joint 205b in this manner, the distance between the male joint 205a and the female joint 205b is reduced, and the lever 18 is rotated in the same manner as described above to rotate the male joint. When connecting 205a and female joint 205b, since it can be connected in the position (substantially central part in the longitudinal direction of the fixing unit 16) similar to the case shown in FIG. Can be connected.

  Next, the configuration of the safety joint coupling device 1C of the third embodiment will be described with reference to FIGS. 9A is a side view of the safety joint coupling device 1C, FIG. 9B is a plan view of the safety joint coupling device 1C as viewed in the direction of the arrow IXb in FIG. 9A, and FIG. 10A is a side view of the safety joint coupling device 1C as viewed in the direction of the arrow Xa, FIG. 10B is a side view of the safety joint coupling device 1C as viewed in the direction of the arrow Xb in FIG. 9A, and FIG. It is sectional drawing of the safety joint coupling device 1C in the Xc-Xc sectional line of 9 (b).

  The safety joint coupling device 1 </ b> C mainly includes a base portion 35, a fixed unit 36 fixed on the base portion 35, and a reciprocating movement in the arrow R direction and the arrow L direction with respect to the fixed unit 36. The moving unit 37 is provided, and a lever 38 that can rotate in the direction of the arrow D and the direction of the arrow U about the rotating shaft 45 is provided to move the moving unit 37.

  The base portion 35 is a portion serving as a base of the safety joint 1C, and extends in a horizontal direction along an end portion of the substantially rectangular bottom wall 35a, a side wall 35b hanging from the longitudinal direction of the bottom wall 35a, and the side wall 35b. And a flange 35c. The safety joint coupling device 1C is used with the flange 35c mounted on the mounting surface.

  The fixed unit 36 is a unit that holds the female joint 105b of the safety joint 105 with respect to the base portion 35, and has a substantially L-shaped bottom wall in plan view fixed on the bottom wall 35a of the base portion 35. 36a, a side wall 36b erected from a longitudinal edge of the bottom wall 36a (side where the lever 38 is disposed), and a lateral edge (right side in FIG. 9) of the bottom wall 36a. A first holding wall 36c and a ceiling wall 36d formed in a substantially L shape at a position facing the bottom wall 36a and connected to the upper edge of the side wall 36b and the first holding wall 36c are provided.

  Further, as shown in FIG. 10, a plate-like spacer 43 is welded to the side wall 36b between the side wall 36b and the lever 18. As shown in FIG. 9A, the spacer 43 has a rectangular opening 43a at a substantially central portion thereof, and two substantially U-shapes extending downward at the lower end side of the opening 43a. The grooves 43b and 43b are formed side by side at a predetermined interval. An opening 44 having a size covering the opening 43a of the spacer 43 and the two grooves 43b and 43b is opened in the side wall 36b.

  On the other hand, as shown in FIG. 10 (a), the first holding wall 36c has a first cutout portion 39 formed in a circular arc shape from the right end portion to the left in the drawing, and a first cutout portion 39. And a second cutout portion 40 that is formed to be smaller than the first cutout portion 39 in a circular arc shape continuously to the left. In the present embodiment, the female joint 105b of the safety joint 105 is held by the first cutout 39, and the second cutout 39 has a female joint 105b held by the first cutout 39. Another female joint of different diameter is held.

  The moving unit 37 is a unit that moves toward the female joint 105 b held by the fixed unit 36 while holding the male joint 105 a of the safety joint 105, and a part thereof is a bottom wall 36 a of the fixed unit 36. A bottom wall 37a formed in a substantially L-shape to be placed on the side wall, a side wall 37b erected from a longitudinal edge of the bottom wall 37a (side where the lever 18 is disposed), and a bottom wall A second holding wall 37c standing from an edge in the short direction of 36a (left side in FIG. 9) and a ceiling wall 37d formed in a substantially L shape so as to face the bottom wall 37a. .

  Further, as shown in FIG. 10B, the second holding wall 37 c has a third cutout portion 41 formed by cutting out in a circular arc shape from the left end portion to the right side in the drawing, and a third cutout portion 41. And a fourth cutout portion 42 that is formed in a circular arc shape smaller than the third cutout portion 41 continuously to the right. In the present embodiment, the male joint 105a of the safety joint 105 is held by the third cutout 41, and the fourth cutout 42 has a female joint 105b held by the third cutout 41. Another female joint of different diameter is held.

  The lever 38 transmits power for moving the moving unit 37, and includes a connecting portion 38a formed in a substantially rectangular shape and a handle portion 38b extending in a rod shape from the connecting portion 38a. The unit 36 is detachably attached to the side wall 36b. Specifically, the connecting portion 38 a of the lever 38 is provided with an insertion hole for inserting the rotating shaft pin 45 and an elongated hole 47 for inserting the connecting pin 46.

  As shown in FIG. 10C, the rotary shaft pin 45 passes through a groove 43 b formed in the spacer 43 and is fixed so as to sandwich the spacer 43 and the connecting portion 38 a of the lever 38. On the other hand, the connecting pin 46 is inserted through the insertion hole formed in the side wall 37b of the moving unit 37 and opens to the side wall 36b of the fixed unit 36, the opening 43a of the spacer 43, and the lever. It is fixed through 18 long holes 47.

  Therefore, when the operator holds the handle portion 38b of the lever 38 and rotates the lever 38 in the direction of arrow D around the rotation shaft pin 45, the moving unit 37 connected to the lever 38 via the connection pin 47 is moved. It moves to the first holding wall 36c side (arrow R direction). Conversely, when the lever 18 is rotated in the direction of arrow U, the moving unit 37 moves in a direction away from the first holding wall 36c (in the direction of arrow L).

  Next, with reference to FIG. 11, the case where the safety joint 105 in the separated state is connected using the safety joint connecting device 1C will be described. FIG. 11 is a diagram showing the state of connecting the safety joint 105 in time series, FIG. 11 (a) is separated, FIG. 11 (b) is temporarily fixed, and FIG. 11 (c) is a connected safety joint. 105 is shown. Note that FIG. 11 illustrates a state viewed from the direction of the arrow XI illustrated in FIG.

  When connecting the safety joint 105 in the separated state, first, the lever 38 is rotated in the direction of the arrow U so that the distance between the first holding wall 36c and the second holding wall 37c is such that the male joint 105a and the female type The total length with the joint 105b is adjusted. 11A, the portion connected to the male joint 105a is fitted into the third cutout portion 41, and the portion connected to the female joint 105b is fitted into the first cutout portion 39. Thus, the male joint 105a and the female joint 105b are held.

  When the male joint 105a and the female joint 105b are held, the lever 38 is rotated in the direction of arrow D while pressing the sleeve of the female joint 105b. Then, the moving unit 37 moves to the first holding wall 36c side (arrow R direction) integrally with the male joint 105a, the tip of the male joint 105b fits into the female joint 105b, and the safety joint 105 The temporarily fixed state shown in FIG. If the lever 38 is further rotated in the direction of arrow D, the moving unit 37 further moves toward the first holding wall 36c (in the direction of arrow R), and finally, as shown in FIG. 11 (c). The male joint 105a and the female joint 105b constituting the safety joint 105 are connected.

  Thus, according to the safety joint coupling device 1C of the third embodiment, as in the safety joint coupling device 1B of the second embodiment, the power for moving the moving unit 37 rotates the lever 38. Is transmitted to the moving unit 37. Therefore, a rotational moment as power can be given to the moving unit 37 with a simple configuration. Further, similarly to the first and second embodiments described above, the safety joint 105 is connected by moving the moving unit 37 using the rotational moment, so that the safety joint 105 can be connected only by human power. .

  Furthermore, since the lever 38 is configured to be attachable to the arrow R direction side along the moving direction of the moving unit 37 from the mounting position described above, the lever 38 is a safety joint having a smaller size than the safety joint 105 described above. Even if it exists, a safety joint can be connected like the above by changing the attachment position of the lever 38. FIG.

  Next, the configuration of the safety joint coupling device 1D of the fourth embodiment will be described with reference to FIGS. 12 (a) is a side view of the safety joint coupling device 1D, FIG. 12 (b) is a plan view of the safety joint coupling device 1D in the direction of arrow XIIb in FIG. 12 (a), and FIG. FIG. 13A is a side view of the safety joint coupling device 1D as viewed in the direction of arrow XIIIa in FIG. 12A, and FIG. 13B is a side view of the safety joint coupling device 1D in the direction of arrow XIIIb in FIG.

  The safety joint coupling device 1D is disposed so as to be capable of reciprocating in the arrow R direction and the arrow L direction with respect to the base unit 55, a fixed unit 56 fixed on the base unit 55, and the fixed unit 56. A moving unit 57, a shaft 58 extending along the moving direction of the moving unit 57, and a lever 59 that can rotate in the directions of the arrow D1 and the arrow U1 are provided.

  The base portion 55 is a portion that becomes a base of the safety joint 1D, and includes a substantially rectangular bottom wall 55a and a side wall 55b that hangs down from a peripheral portion of the bottom wall 55a.

  The fixed unit 56 is a unit that holds the female joint 105b of the safety joint 105 with respect to the base portion 55, and includes a rear wall 56a that stands up along the longitudinal direction of the bottom wall 55 of the base portion 55, and a rear wall. 56a is connected to the side edge on the lever 58 side and is erected from the lateral direction of the bottom wall 55 of the base portion 55, and the side wall 56b is connected to the side edge on the opposite side of the rear wall 56a on the lever 58 side. A first holding wall 56c erected from the short direction of the bottom wall 55 of the portion 55, and a substantially L-shape connected to the rear wall 56a, the side wall 56b, and the first holding wall 56c (see FIG. 12B). ) Formed on the ceiling wall 56d.

  Further, as shown in FIG. 13A, the first holding wall 56c has a first cutout portion 59 formed by cutting out in a circular arc shape from the right end portion to the left in the drawing, and a first cutout portion 59. And a second cutout portion 60 that is formed in a circular arc shape that is smaller than the first cutout portion 59 toward the left. In the present embodiment, the female joint 105b of the safety joint 105 is held by the first notch 59, and the second notch 60 has a female joint 105b held by the first notch 59. Another female joint of different diameter is held.

  The moving unit 57 is a unit that moves toward the female joint 105 b held by the fixed unit 56 integrally with the male joint 105 a while holding the male joint 105 a of the safety joint 105. A rear wall 57a facing the rear wall 56a, a side wall 57b connected to the side edge of the rear wall 57a and facing the first holding wall 56c of the fixing unit 56, and a side edge of the rear wall 57a 56, a second holding wall 57c facing the side wall 56b, a rear wall 57a, a side wall 57b, a bottom wall 57d formed in a substantially L shape and connected to the lower side of the first holding wall 57c in a horizontal direction, and a bottom wall 57d. And a ceiling wall 57e that is connected to the rear wall 57a, the side wall 57b, and the upper portion of the first holding wall 57c and is formed in a substantially L shape.

  Further, as shown in FIG. 13B, the second holding wall 57c has a third cutout portion 61 formed by cutting out in a circular arc shape from the left end portion to the right in the drawing, and a third cutout portion 61. And a fourth cutout portion 62 that is formed in a circular arc shape that is smaller than the third cutout portion 61 continuously to the right. In the present embodiment, the male joint 105 a of the safety joint 105 is held by the third cutout portion 61, and the fourth cutout portion 62 is different from the male joint 105 a held by the third cutout portion 61. Another male joint of different diameter is retained.

  The shaft 58 is for transmitting power for moving the moving unit 47, and penetrates the first holding wall 56 c and the side wall 56 b of the fixed unit 56 and the side wall 57 b and the second holding wall 57 c of the moving unit 57. And it is supported rotatably about the axial direction as the center of rotation. A male screw is threaded on the surface, and a nut 63 welded to the outer surface of the side wall 57b of the moving unit 57 is screwed onto the male screw. Furthermore, a handle 64 is attached to the end of the first holding wall 56c.

  Therefore, when the operator holds the handle 64 and rotates the handle 64 clockwise, the rotational moment is applied to the moving unit 47 via the shaft 58, and the moving unit 47 moves along the shaft 58 with the first holding wall 56c. Move to the side (arrow R direction). Conversely, when the handle 64 is rotated counterclockwise, the moving unit 47 moves along the shaft 58 in the direction away from the first holding wall 56c (in the direction of arrow L).

  The lever 59 is for transmitting the power necessary for bringing the safety joint 105 in a temporarily fixed state, which will be described later, into a connected state to the moving unit 47, and extends linearly in the state shown in FIG. A base shaft portion 59 a and a handle portion 59 b that bends and extends from the middle of the base shaft portion 59 a toward the fixed unit 56, and is detachably attached to the base portion 55.

  Specifically, a locking portion 59c that is bent in a substantially reverse letter shape is formed at the end of the base shaft portion 59a. The locking portion 59c is formed in the bottom wall 55a of the base portion 55. The base shaft portion 59a of the lever 59 is inserted into the opening 55c (see FIG. 12B), and the arrow U2 direction and the arrow D2 center around the contact portion between the locking portion 59c and the bottom wall 55a of the base portion 55. It is attached so that it can be rotated in any direction.

  Further, in the lever 59, when the handle portion 59b is rotated in the arrow D1 direction, the base shaft portion 59a that rotates in the arrow D2 direction contacts the end of the shaft 58 (the side opposite to the side on which the handle 64 is attached). Are arranged to be. Therefore, when the operator rotates the handle portion 59b of the lever 59 in the direction of the arrow D1, the base shaft portion 59a rotates in the direction of the arrow D2 and contacts the end of the shaft 58. Here, since the shaft 58 is supported so as to be movable in the direction of the arrow R and the direction of the arrow L, when the base shaft portion 59a of the lever 59 contacts the end of the shaft 58, the shaft 58 and the shaft 58 are screwed together. The moving unit 57 is moved in the direction of the arrow R integrally.

  Next, with reference to FIG. 14 and FIG. 15, the case where the safety joint 105 in the separated state is connected using the safety joint connecting device 1D will be described. FIG. 14 and FIG. 15 are diagrams showing the state of connecting the safety joint 105 in time series, FIG. 14 (a) is separated, FIG. 14 (b) is temporarily fixed, FIG. 15 (c) is temporarily fixed, 15 (d) shows the safety joint 105 in a connected state.

  When connecting the safety joint 105 in the separated state, first, the handle 64 is rotated counterclockwise so that the distance between the first holding wall 56c and the second holding wall 57c is equal to the male joint 105a and the female joint. It adjusts so that it may become more than the total length with 105b. 14A, the portion connected to the male joint 105a is fitted into the third cutout portion 61, and the portion connected to the female joint 105b is fitted into the first cutout portion 59. The male joint 105a and the female joint 105b are held.

  When the male joint 105a and the female joint 105b are held, the handle 64 is rotated clockwise while pressing the sleeve 113 of the female joint 105b. Then, the moving unit 47 moves to the first holding wall 56c side (in the direction of arrow R) integrally with the male joint 105a, the tip of the male joint 105b is engaged with the female joint 105b, and the safety joint 105 is The temporarily fixed state shown in FIG.

  In this state, a lever 59 is attached to the base portion 55 as shown in FIG. That is, since it is not necessary to attach the lever 59 before this state is reached, a work space before this state can be effectively secured. The lever 59 is set, and the handle portion 59b of the lever 59 is rotated in the direction of the arrow D1.

  Here, the handle portion 59b is not provided on the lever 59, and the base shaft portion 59a can be rotated directly by gripping the base shaft portion 59a. However, in such a case, a horizontal force is strongly required. On the other hand, if it is attempted to rotate the lever by grasping the handle 59b, a large force is required in the vertical direction. It is possible to facilitate transmission of a large force.

  When the handle portion 59b of the lever 59 is rotated in the direction of the arrow D1, the base shaft portion 59a rotates in the direction of the arrow D2, and contacts the end of the shaft 58 (the side opposite to the end where the handle 64 is attached). . Then, the shaft 58 receives a rotational moment from the lever 59 and moves in the direction of arrow R integrally with the moving unit 57 screwed. Thus, as shown in FIG. 15D, the male joint 105a and the female joint 105b constituting the safety joint 105 are connected.

  As described above, according to the safety joint coupling device 1D of the fourth embodiment, the moving unit 57 is moved using the rotational moment in the same manner as described in the first to third embodiments. Since the safety joint 105 is connected, the safety joint 105 can be connected only by human power. Moreover, since the space | interval of the 1st holding wall 56c and the 2nd holding wall 57c can be freely adjusted by rotating the handle | steering-wheel 64, it can respond to the safety joint of various sizes. Furthermore, since the lever 59 operates at one point regardless of the size of the safety joint, it is necessary to change the mounting position of the lever 59 according to the type of the size of the safety joint as described in the third embodiment. Therefore, the operability of the apparatus can be improved.

  In the case of the fourth embodiment, since the power applied to finally connect the male joint 105a and the female joint 105b uses the rotational moment given by the lever 59, the safety joint 105 is temporarily fixed. In view of this, the handle 64 of the fourth embodiment can be made smaller than the handle 11 of the first embodiment, considering that it can be performed with a smaller force than the connection.

  The present invention has been described above based on the embodiments. However, the present invention is not limited to the above embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. It can be easily guessed.

  For example, in the above-described embodiment, the case where the male joint 105a is held by the moving unit 4 or the like configured to move substantially linearly toward the held female joint 105b has been described. In addition, a lever that is rotatably arranged with respect to the base portion 2 or the like is provided while holding the male joint 105a, and by rotating the lever, the held male joint 105a is replaced with the female joint 105b. You may comprise so that it may push in. In such a case, since the mechanism for transmitting power and the mechanism for holding the male joint 105b can be made common, the manufacturing cost can be reduced by reducing the number of parts.

  Further, for example, in the above embodiment, in order to improve the mobility of the moving unit 4 and the like, a sheet capable of reducing friction is stuck on the surface where the moving unit 4 and the fixed unit 3 and the like come into contact with each other. You may do it. In such a case, since the moving unit 4 and the like move smoothly, the safety joint 105 can be connected with a smaller force.

  Further, for example, in each of the above-described embodiments, the case where the female joint 105b is fixed and the male joint 105a is moved and pushed into the female joint 105b has been described, but the male joint 105a is fixed. The female joint 105b may be moved and pushed into the male joint 105a.

(A) is a side view of the safety joint coupling device, and (b) is a plan view of the safety joint as viewed in the direction of arrow Ib in FIG. (A) is a side view of the safety joint as viewed in the direction of arrow IIa in FIG. 1 (a), and (b) is a side view of the safety joint as viewed in the direction of arrow IIb in FIG. It is a figure which shows a mode that a safety coupling is connected in time series. (A) is a side view of the safety joint coupling device, and (b) is a plan view of the safety joint coupling device as viewed in the direction of arrow IVb in FIG. 4 (a). (A) is a side view of the safety joint coupling device as viewed in the direction of arrow Va in FIG. 4 (a), and (b) is a cross-sectional view of the safety joint coupling device along the arrow Vb-Vb section line in FIG. 4 (b). It is a figure which shows a mode that a safety coupling is connected in time series. It is a figure for demonstrating the force applied to a lever. It is a figure for demonstrating the case where the male type joint hold | maintained in a 3rd notch part and a 6th notch part, and a female type joint are connected. (A) is a side view of the safety joint coupling device, and (b) is a plan view of the safety joint coupling device as viewed in the direction of arrow IXb in FIG. 9 (a). Next, the configuration of the safety joint coupling device 1C of the third embodiment will be described with reference to FIGS. 9A is a side view of the safety joint coupling device 1C, and FIG. 9B is a plan view of the safety joint coupling device 1C as viewed in the direction of the arrow IXb in FIG. 9A. 9A is a side view of the safety joint coupling device as viewed in the direction of arrow Xa in FIG. 9A, FIG. 9B is a side view of the safety joint coupling device in the direction of arrow Xb in FIG. 9A, and FIG. It is sectional drawing of the safety joint coupling device in the Xc-Xc sectional line of FIG.9 (b). It is a figure which shows a mode that a safety coupling is connected in time series. (A) is a side view of a safety joint coupling device, (b) is a plan view of the safety joint coupling device as viewed in the direction of arrow XIIb in FIG. (A) is a side view of the safety joint coupling device as viewed in the direction of arrow XIIIa in FIG. 12 (a), and (b) is a side view of the safety joint coupling device in the direction of arrow XIIIb in FIG. 12 (a). It is a figure which shows a mode that a safety coupling is connected in time series. It is a figure which shows a mode that a safety coupling is connected in time series. (A) is a figure for demonstrating a consumer bulk supply system, (b) is a figure which shows typically the piping unit 100 connected to the LP gas tank T. FIG. It is a figure which shows a mode that a safety coupling is connected in time series.

Explanation of symbols

1A, 1B, 1C, 1D Safety coupling device 2, 15, 35, 55 Base part 3, 16, 36, 56 Fixing unit (holding body)
4, 17, 37, 57 Moving unit (moving body)
5,58 Shaft 11, 64 Handle 18, 38, 59 Lever 3c, 16c, 36c, 56c First holding wall (first standing wall)
6, 19, 39, 59 First notch 21 Second holding wall (second standing wall)
23 Third notch (second notch)

Claims (8)

A pair of joints that connect each of the two flow path forming members that form the flow path of the combustible fluid, and the flow paths of the two flow path forming members are communicated with each other by connecting the pair of joints. A safety joint connecting device for connecting a safety joint including a valve body that blocks the two flow paths by separating a pair of joints,
A base portion placed on the placement surface;
A holding body for holding one of the pair of joints with respect to the base portion;
While holding the other joint coaxially with the one joint held by the holding body, the other joint is resisted against the drag of the valve body by using the given rotational moment. A safety joint coupling device comprising: a coupling mechanism that couples the pair of joints by pushing. The coupling mechanism is
A power transmission mechanism for transmitting power for connecting the pair of joints as a rotational moment;
The rotational moment transmitted from the power transmission mechanism is used as power to hold the other joint coaxially with the one joint held by the holding body, and to the one joint integrally with the other joint. The safety joint coupling device according to claim 1, further comprising a moving body configured to be movable substantially linearly toward the head. The power transmission mechanism is
A shaft that extends along the moving direction of the moving body, screws the moving body in the middle thereof, and is rotatably supported with the extending direction as a central axis;
The safety joint coupling device according to claim 2, further comprising a handle coupled to one end of the shaft.   The safety joint coupling device according to claim 2, wherein the power transmission mechanism is configured by a lever coupled to the moving body and pivotally supported with respect to the base portion.   5. The safety joint coupling device according to claim 4, wherein the lever is configured to be detachable, and the mounting position of the lever is provided in at least two places along the moving direction of the moving body.   The bottom surface of the base portion is configured to be inclined so as to rise in a direction in which the moving body moves toward one joint held by the holding body. Safety joint coupling device. The holder is
A first standing wall erected from the base portion;
The first standing wall is formed by cutting out a part of the first standing wall, and includes a first cutout portion that holds at least one kind of the one joint. Safety joint coupling device. A second standing wall standing in parallel with the first standing wall;
A second cutout portion formed by cutting out a part of the second standing wall and holding the one joint of a type different from the type that can be held by the first cutout portion. Item 8. The safety joint coupling device according to Item 7.

Images