JP2841234B2 - Automatic connection system for multiple pipes - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an apparatus for automatically connecting simultaneously a plurality of fluid supply pipes provided in each of a moving-side facility and a fixed-side facility in a moving tank type batch production system. About.

[Conventional technology and its problems]

With the diversification of demand in recent years, the trend of the era is changing to a multi-product variable production system. As a result, various production systems have been studied and developed. At this stage, the moving tank batch production system is the most efficient. It is often desirable and has already been partially implemented.

Here, the moving tank type batch production method means that an automatic transfer cart loaded with a moving tank truck having a tank mounted thereon sequentially runs along a transfer path to each station provided for each operation of the same system. In this system, independent work is processed in a station, and in this system, piping connection between the mobile equipment and the fixed equipment is a particularly important factor.

Conventionally used piping connection means include a manual connection and manual operation, or an automatic connection device using a device using magnetic force, a connection device using an actuator such as air or hydraulic pressure, or the like.

However, also in the automatic connection device, when an unexpected trouble such as a decrease in magnetic force due to a rise in temperature or a drop in output of an actuator due to a sudden stop of supply of air or the like occurs, there is a possibility that a connection portion between pipes may be disconnected.

To cope with this, a method of fixing the pipes with the claws or providing a lock mechanism such as driving a pin is conceivable, but none of these methods is sufficient.

Further, in the above-described production method, the type is frequently switched, and the pipe must be disconnected and connected every time the type is switched.
The problem of dripping also needed to be solved.

[Problems to be solved by the invention]

The present invention solves the above-mentioned problems of the conventional apparatus, and there is no fear that the piping is disconnected even if the magnetic force or the output of the actuator or the like is reduced, and it is possible to sufficiently cope with frequent product switching. An object of the present invention is to provide a device for automatically connecting a plurality of pipes at the same time.

[Means for solving the problem]

The simultaneous automatic connection device for a plurality of pipes according to the present invention is provided with one flange equipped with pipe ends of a plurality of pipes connected to equipment on one side, and a plurality of pipes connected to equipment on the other side. A gas injection pipe is provided at each of the plurality of pipe ends mounted on the two flanges, the other flange having the pipe ends mounted thereon, and a means for bringing the one flange into contact with the other flange and tightening the flanges. Along with providing an open valve seat, a plurality of pipes connected to the equipment on one side and a plurality of pipes connected to the other side by moving a valve body operated by separate operating means to each of the plurality of valve seats. It is characterized in that a plurality of pipes connected to the equipment can be individually communicated.

[Operation] The simultaneous automatic connection apparatus for a plurality of pipes according to the present invention includes a plurality of pipes connected to one side of the equipment, one flange attached to a pipe end, and a plurality of pipes connected to the other side of the equipment. Since the other flange to which the pipe end of the pipe is attached and the one flange is brought into surface contact with the other flange and a tightening means is provided, for example, even if there is a decrease in the output of the actuator, the pipe end of the pipe Are not separated, and at the end of each of the pipes mounted on the two flanges, a valve seat with an open gas injection pipe is provided, and each valve body is separately operated by the operating means provided at each of the valve seats. Since the pipes are connected to and separated from each other, a plurality of pipes connected to the equipment on one side and a plurality of pipes connected to the equipment on the other side can be individually communicated with each other. When the body comes and goes Since the gas injection pipe is opened in the valve seat, the closed state of the flow path can be confirmed by supplying an inert gas or the like to the valve seat.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an explanatory view showing the entirety of a simultaneous automatic connection device for a plurality of pipes, and FIG. 2 is an explanatory view of the pipe ends of the pipes. One of them is shown.

Figure 1, in Figure 2, 1 is a flange for example upper flange of the one side, the upper flange 1, a plurality of fluid supply tubes 2, 2 ₁ of equipment eg movable equipment A of one side
Pipe ends 4, 4 ₁ of bent pipes 3, 3 ₁ ... connected respectively to ...
.. Are mounted integrally. When these tube end portions 4, 4 ₁ ...... is illustrated by Figure 2 for the one because it is all the same configuration, the above-mentioned pipe end portion while being internally provided valve seat 5, the valve A valve element 6 is provided to be in contact with and separate from the seat 5. The valve element 6 is driven by a rod 8 by a cylinder 8 to be connected to and separated from the valve seat 5. Alternatively, the cylinder 8 may be urged so as to contact the valve seat 5 to close the flow path, and to operate with the cylinder 8 only when the flow path is separated and opened.

9 is a sealing device for preventing leakage from the rod 7 and the pipe end 4, and 10 is an O-ring provided on the valve seat 5.

A plurality of pipe ends 4 mounted on the above-mentioned flange 1
A concave portion 11 is provided between the _first and second concave portions 41, and an opening 12 through which a clamp claw described later can be inserted penetrates the center of the concave portion 11.
Reference numerals 13 and 13 'denote locking claw insertion openings which are respectively opened through both ends of the upper flange 1. Reference numeral 15 denotes the other flange, for example, a lower flange, both ends of which are mounted on the columns 16, 16 in a state of facing the flange 1, and the lower flange 15 is integrally attached to the flange 1 described above. and a plurality of fluid supply tubes 2, 2 ₁ ...... the movable equipment a
Each bent tube 3, 3 ₁ ...... tube end 4 and 4 ₁ ...... consolidated corresponding to the flexible tube 18, 18 ₁ connected to a plurality of tubes on the other side of the equipment such as fixed-side equipment B The tube ends 20, 20 ₁ ... Of the bent tubes 19, 19 ₁ . Since these pipe ends 20, 20 ₁ ... Have the same configuration, only one of them will be described. In FIG. 2, a valve seat 21 is provided at the end of the pipe, and a valve element 24 is provided on the valve seat 21 so that the valve body 24 can be freely moved by a cylinder 22 via a rod 23.

Further, for safety and the like, the valve body 24 may be constantly in contact with the valve seat 21 and urged so as to close the flow path, and the cylinder 22 may be operated only when the flow path is separated and the flow path is opened. Good.

Further, 25 is a sealing device for preventing leakage between the rod 23 and the tube end, 14 of N ₂ such that the opening in the valve seat 5 of the upper flange 1 of the mounting tube end 4 and the It is an inert gas supply pipe.

Locking claw insertion openings 1 which are opened at both ends of the lower flange 15 at both ends of the upper flange 1 respectively.
Openings 26 and 26 'penetrated at positions opposed to 3, 13' are provided. A lower flange 15 has an opening penetrating the center of the recess 11 provided in the upper flange 1. A through hole 27 is provided at a position corresponding to 12.

Cylinders 31, 31 'are placed on frames 30, 30' standing upright on the upper flange 1 so as to straddle the locking claw insertion openings 13, 13 'drilled at both ends of the upper flange 1 described above. And two substantially L-shaped semi-circular ends protruding from the respective ends of the locking claw holding rods 33, 33 'fixed to the piston rods 32, 32' of the cylinders 31, 31 '. engaging claws 34, 34 ', 34 _1, 34 _1' is openably journalled in back-to-back form. 35, 35 'the two locking pawls 34 ₁ and 34 with the backrest shape The aforesaid', 34 ₁ '
Are biased in the closing direction to be connected. 36,3
6 ′ is a column 16,1 in a direction orthogonal to the above-mentioned column 16,16 ′.
6 ′, the arms 36,
Attach cylinders 37, 37 'to 36' and set piston rods 38, 3
Rollers 39, 39 'are rotatably supported at the tip of 8'.
The above-mentioned rollers 39 and 39 ′ are provided with locking claw insertion openings 13 and 1 provided at both ends of the upper flange 1.
Cylinders 37 and 37 'and rod 3
8,38 'are arranged.

Therefore, the cylinders 31 and 31 ′ are mounted on the stands 30 and 30 ′ erected on the upper flange 1 so as to straddle the locking claw insertion openings 13 and 13 ′ provided at both ends of the upper flange 1.
Are simultaneously operated to lower the piston rods 32, 32 ', respectively. When the piston rods 32, 32' are lowered, the since a pair of the locking claws 34 and backrest form a 34 ', and 34 ₁ and 34 _1' is urged in the direction to close the backrest direction of the by the urging force of the spring 35, 35 ', After passing through the locking claw insertion openings 13 and 13 ′ at both ends of the upper flange 1,
Openings 26, 2 at both ends of lower flange 15 placed on 6 '
Pass 6 '. When the locking pawl passes through the openings 26, 26 'at both ends of the lower flange 15, the cylinders 31, 31' stop operating, and the columns 16, 16 'on which the lower flange 15 is placed. The rods 38, 38 'are extended upward by operating the cylinders 37, 37' provided on the arms 36, 36 'transversely arranged in the direction perpendicular to the support, and the rods 38, 38' are rotatably mounted on the tips of the rods 38, 38 '. The springs 35, 3 allow the rollers 39, 39 'to be axially supported to enter the back-to-back portions of the L-shaped locking pawls which are back-to-back.
5 'against the respective locking pawl 34 34', 34 ₁ and 34 ₁ 'to open, respectively, latching pawls 34, 34', 34 _1, 34 ₁ 'tip of the lower flange 15 of the It is in a state of being locked on the lower surface. In this state, 'lower flange 15 is raised to the engagement pawls 34, 34' piston rod 32, 32 by operating the 'cylinder 31, 31' on frame 30, 30 described above, 34 _1, 34 ₁ ′ And rise together to come into contact with the upper flange 1. The interview with the upper flange 1 and the lower flange 15, the tube end 4 and 4 ₁ of a plurality of tubes of the movable equipment A to the upper flange 1 are integrally mounted, together with ...... and the lower flange 15 Pipe ends 20, 20 ₁ ,.
The corresponding tube end 4 and 20, 4 ₁ 20 ₁ ... and are closely each tube end 4 and 4 ₁ of the, ..., 20, 20 _1, ...
The valve seats 5,5, ……, 21,21,… inside are O-rings 10,10,…
Tightly by ..., a plurality of bent tubes 3, 3 ₁ of the movable equipment A from a plurality of tube ends of the, ... and the fixed equipment bent pipe 19 B,
19 ₁ ,... Are in a communicable state. And
Since the flexible tube 18 is connected to the bent pipe 19 of the fixed-side equipment B, the movement of the rise of the lower flange 15 is sufficiently absorbed by the flexible tube 18.

Further, as described above, the lower flange 15 is raised so as to be in close contact with the upper flange 1 so that the plurality of pipe ends of the moving-side equipment A and the plurality of pipe ends of the fixed-side equipment B mounted on both flanges are formed. The respective valve seats 5 and 21 are brought into close contact with each other, and the valve bodies 6 and 24 that are in contact with the respective valve seats 5 and 21 are connected to the cylinders 8, 8 ₁ ,.
, 22 and 22 ₁ are separately operated to separate the valve bodies 6 and 24 from the valve seats 5 and 21, and a plurality of bent pipes 3, 3 ₁ ,. With the bent pipes 19, 19 ₁ ,…,
The fluid of the moving facility A is supplied to the fixed facility. After the work is completed, cylinders 8, 8 ₁ ,…, 22, 22 ₁ ,…
Is operated to advance the respective valve elements 6, 24 to connect them to the valve seats 5, 21, whereby the flow path is completely closed. In this embodiment, in order to confirm that the above-mentioned flow path is closed, an inert gas such as N ₂ is supplied from the inert gas supply pipe 14 to the contact surface of the valve body and the valve seat. I have to. When the above-mentioned closing is confirmed, the cylinders 31, 31 '
Lowering the lower flange 15 by operating the respective tube end portions 4, 4 _1, ..., 20, 20 _1, to release the joint ....

As described above, when allowed the upper flange 1 and the lower flange 15 closely maintains its close state, also, a plurality of the two pipe ends 4 and 4 ₁ of the, ..., 20, 20 _1, ... In this embodiment, the lower flange 15 is tightened to the upper part 1 in order to further strengthen the close contact state of the liquid and to prevent leakage of the fluid. A description will be given based on this.

Figure 1, in FIG. 4, as described above, the recess 11 is provided between the tube end 4 which is mounted on the upper flange 1 and 4 ₁ and the clamp claws to be described later in the center of the concave portion 11 A through-opening 12 through which a 42 can be inserted is provided. A through hole 27 is formed in the lower flange 15 at a position facing the through opening 12 of the recess 11 of the upper flange 1, and a clamp claw 42 is fixedly provided at the tip of the through hole 27. Clamp shaft
43 is loosely fitted loosely.

The lower end of the clamp shaft 43 is integrally fitted to the clamp lever 44. A rocking bracket 48 having a U-shaped cross section is fixed to the tip of a piston rod 47 of a cylinder 46 fixed to the lower end of a rod 45 suspended from the lower surface of the lower flange 15, and the rocking bracket 48 and the clamp described above are fixed. The tip of a clamp lever 44 integrally fitted to the lower end of the shaft 43 is rotatably connected with a pin 49.

Therefore, if the cylinder 46 is operated to rotate the clamp lever 44 via the piston rod 47 and the swing fitting 48,
The clamp shaft 43 integrated with the clamp lever 44 and the clamp claw 42 fixed to the tip thereof also rotate.

A bearing 53, a packing 54, a collar 55, and the like are mounted in the through hole 27 into which the clamp shaft 43 is loosely fitted, so that the rotation of the clamp shaft 43 is smoothed.

The clamp claws 42 are replaceably fastened to the tip of the clamp shaft 43 with bolts or the like.
In elliptical or rectangular block body, the thickness of the block body tapering as has been notched portion 42 ₁ are formed longitudinal length side end for half a circumference is the thickest (Figure 4 ( b)). On the other hand, the upper flange 1
An opening 12 slightly larger than the width and length of the clamp claw 42 penetrates the center of the bottom of the concave portion 11, and the bottom surface of the concave portion 11 is a shoulder portion protruding on both longitudinal sides of the opening 12.
50, 50 are provided, and different one ends of both shoulders 50, 50 are cut off symmetrically to form grooves 51, 51.

Then, the clamp claws 42 are raised by raising the lower flange 15.
Is inserted through the opening 12 of the concave portion 11 of the upper flange 1, and when the upper flange 1 and the lower flange 15 come into face contact with each other, the notch portion 42 pierced deepest at both ends in the longitudinal direction of the clamp claw 42. _The clamp claw 42, the clamp shaft 43, and the shoulder 50 are designed such that ₁ is located slightly above the shoulder 50 of the recess.

Therefore, as described above, the cylinders 31, 31 'mounted on the stands 30, 30' erected over the locking claw insertion openings 13, 13 'provided at both ends of the upper flange 1 are operated. Te, locking pawls 34, 34 ', 34 _1, 34 _1' is lowered and allowed to penetrate into the 'opening 26 of the end portions of the lower flange 15 mounted on top' posts 16 and 16, the The cylinders 37, 37 'provided on the arms 36, 36' horizontally provided on the columns 16, 16 'are actuated to move the rollers 39, 39' at the tips of the rods 38, 38 'to the above-mentioned set of locking members. Open the claw, engage the tip of the locking claw with the lower surface of the lower flange 15,
When the cylinders 31 and 31 'are operated to raise the locking pawls, the lower flange 15 is raised, and the clamp pawls 42 pass through the openings 12 of the upper flange 1 and the recesses 11 are formed. When the lower flange 15 is reached, the lower flange 15 comes into contact with the upper flange 1, and the fixed cylinder 46 is operated on the lower surface of the lower flange 15 to operate the piston rod 47 and the swing metal fitting.
Allowed turning the clamp lever 44 through 48, the clamp lever 44 and the clamp claw 42 of the front end to a fixed clamp shaft 43 which is integral has a thickness of thinnest notch 42 ₁ and the upper flange 1 The upper funnel 1 and the lower flange 15 are tightened with the rotation of the clamp claw 42, and the operation of the cylinder 46 is stopped. And the lower flange 15 are tightened.

Since the present embodiment is configured as described above, for example, a transport trolley loaded with a movable tub truck having a movable tub mounted thereon is self-propelled to an independent processing station installed along the transport path. Then, it is stopped at a predetermined position by the positioning device.

Then, each fluid supply pipe 2,2 ₁ ,
A plurality of pipe ends 4, 41, ... connected via a plurality of flexible tubes 18, _{1 of} a plurality of fixed-side facilities.
A plurality of pipe ends 20,20 ₁ , ... connected via 8 ₁ , ...
, Operate the respective cylinders 8, 8 ₁ ,..., 22, 22 ₁ ,... To close the flow passage by the valve body pressing the valve seat.

The cylinder 31, which is mounted on the gantry 30, 30 'standing upright over the openings 13, 13' at both ends of the upper flange 1,
31 'is actuated to engage the back end of the locking claw holding rods 33, 33' fixed to the piston rods 32, 32 '. Since the claws 34 and 34 ', 34 ₁ and 34 ₁ ' are urged in the closing direction by the springs 35 and 35 ', the claws 34 and 34', 34 ₁ 'and 34 ₁ ' Through openings 2 at both ends of the lower flange 15 placed on top
Penetrates 6,26 '. When this penetrates, the cylinder 31, 31 '
Will be stopped.

Subsequently, the cylinders 37, 37 'fixed to the arms 36, 36' provided on the columns 16, 16 'are actuated to raise the rollers 39, 39' at the tips of the rods 38, 38 '. , 'two are locking claws 34 and 34' 39, interrupt between 34 ₁ and 34 ₁ ', the spring 3
The locking claw is opened outwardly against the urging force of 5,35 ', and the locking claw is locked to the bottom surface of the lower flange 15. The locking pawl 34 and 34 was' not to close by the urging force of the roller 39, 39 '', 34 ₁ and 34 ₁ 'spring 35 actuating the cylinders 31, 31' while pressed against the nail Then, when the locking claw holding rods 33, 33 'are raised via the piston rods 32, 32', the lower flange 15 locked by the locking claw is gently raised and comes into contact with the upper flange.

As described above, since the moving equipment A is stopped at a predetermined position by the positioning device, the lower flange 15
A plurality of tube end 4 and 4 ₁ of interview simultaneously movable equipment A of the upper flange 1, a plurality of tube ends 20 and 20 ₁ of the ...... and the fixed equipment B,
Are also in contact with each other, and the clamp claws 42 of the clamp shaft 43 are also inserted into the central opening 12 of the concave portion 11 of the upper flange 1. At this time, since the clamp jaws 42 are deepest notch 42 ₁ of the clamp jaws both side ends are positioned slightly above the shoulder 50, the clamp lever 44 by operating the lower portion of the cylinder 46 of the lower flange 15 is rotated, the clamp shaft 43, clamp jaws 42 also rotates, tapering been notched portion 42 ₁ of the bottom surface of the clamp jaws 42 are gradually tightened while contacting sequentially shoulder 50, the upper flange 1 and the lower flange 15 rigidly fastened, it is closely simultaneously a plurality of tube end 4 and 4 ₁ of the movable equipment a, ...... a plurality of tube ends 20 and 20 ₁ of the stationary equipment B, and also ...... firmly and .

Subsequently, the cylinders 22, 22 ₁ ,... Of the plurality of pipe ends 20, 20 ₁ ,... Of the fixed-side equipment A are actuated to separate the valve body 24 from the valve seat 21. Multiple pipe ends of facility A
When the respective cylinders 8, 8 ₁ ,... Of 4, 4, ₁ ,... Are actuated to separate the valve 6 from the valve 5, the flow path is communicated and the fluid is supplied from the moving-side equipment to the fixed-side equipment. You.

And since it has the pipe ends of a plurality of pipes, it is also possible to supply the fluid from the moving-side equipment to the fixed-side equipment either simultaneously from each pipe end or with a time lag provided by each pipe, It is also possible to change the supply direction of the fluid from the fixed-side equipment to the movable-side equipment.Furthermore, one flow path is from the fixed side to the moving side, and the other flow path is from the moving side to the fixed side. It is also possible to supply.

Further, at the time of supplying the fluid, the valve seat is provided with an O-ring, so that no liquid leakage or the like occurs.

When a predetermined fluid supply operation is completed, first, the tube end 4 and 4 ₁ of the movable equipment A, the cylinder 8, 8 ₁ ..., presses against the valve body 6 is operated to .... the valve seat 5, Similarly, pipe end 2 of fixed-side equipment B
0,20 _1, cylinder 22 and 22 ₁ of ..., completely blocks the flow path by pressed against the valve body 24 by operating the .... on the valve seat 21. If necessary, an inert gas such as N ₂ gas may be supplied to the valve seat to confirm that the flow path has been closed, or a fluid adhering to the pipe end wall may be blown off.

Subsequently, the cylinder 46 below the lower flange 15 is operated to invert the clamp lever 44 to invert the clamp claw 42 via the clamp shaft 43 to release the tightening of the clamp claw 42 and the shoulder 50, and the cylinder Activate 31,31 'to hold the hook 3
3, 33 'is lowered, and the lower flange 15, which is locked by the locking claw, is placed on the top of the column 16, 16', and the locking claw holding rods 33, 33 'are further lowered slightly. And locking claw are spring 35,3
Closed with 5 'contraction force. At this time, since the rollers 39, 39 'are located below, the rollers 39, 39' do not come into contact with the locking claws.

Subsequently, when the cylinders 31 and 31 'are operated in reverse to raise the locking claw holding rods 33 and 33', the locking claws are closed, so that the openings 26 and 26 'at both ends of the lower flange 15 are closed. Pass through and be located on top. A series of pipe connection and fluid supply operations are completed.

In the above description, the pipe connection in the moving tank type batch production system has been described. However, the present invention is not limited to the moving tank and can be connected not only in the vertical direction but also in the horizontal direction.

The shape of the above-mentioned clamp claw is not particularly limited, as long as it has a function of tightening the shoulder, and the clamp claw is preferably bolted to the clamp shaft so that it can be freely replaced by wear or the like, Further, it is preferable that the shoulder portion is subjected to processing such as crawl plating in consideration of wear resistance.

Since the valve element is pressed by the valve seat and seals the fluid, it is preferable to use, for example, Teflon resin, and the valve seat is also preferably surface-treated by hard chrome plating or the like in consideration of durability and the like. It is preferably a metal.

At the time of supplying the above-mentioned fluid, no dripping occurs because the valve body presses the valve seat, and the cylinder 8,
Since 8 ₁ , ..., 22,22 ₁ , ... use a single-acting cylinder, for example, when the air pressure drops, the spring is activated and the valve body pushes the valve seat as described above, causing mischief. The flow of the fluid is prevented.

The movement and positioning of the moving-side equipment, the operation of each cylinder, the opening and closing of valves, etc. are all centrally controlled in the central control room, and everything from pipe connection to fluid supply is performed automatically.

According to the present embodiment, a valve seat is provided at each of a plurality of pipe ends connected to the moving-side equipment, and a valve body that comes into contact with and separates from the valve seat is operated by different operating means. A valve seat is provided at each of a plurality of pipe ends connected to the equipment, and a valve body that comes into contact with and separates from the valve seat is operated by each of different operating means. Is integrally attached to the upper flange, the plurality of tube ends on the fixed side are integrally attached to the lower flange, and the lower flange is locked and brought into contact with the upper flange. The clamp lever is rotated by a cylinder fixed to the lower flange side, the clamp pawl is rotated via a clamp shaft integrated with the clamp lever, and the clamp pawl is provided on the upper flange by the rotation of the clamp pawl. Lock the shoulder on the bottom of the A plurality of pipe ends are automatically connected by a mechanism.In addition, since each pipe end is provided with a sealing device, liquid leakage does not occur at all. The lock mechanism is designed to tighten the shoulder on the upper flange side with the clamp claw on the lower flange side, so there is no danger that the output of the actuator will drop due to sudden air supply shortage and the piping connection will be incomplete. In addition, since the lower flange is designed to have an ascending width that minimizes the degree of expansion of the flexible tube to which the fixed-side equipment is connected, there is no need to impose an excessive burden on the flexible tube, and to prevent contamination. There is no problem.

The simultaneous automatic connection device for a plurality of pipes according to the present embodiment can be used not only for liquid fluids but also for connection of powdery or gaseous fluids. Since a single-acting cylinder is used, sudden power system troubles can be avoided. Can be adequately dealt with.

〔The invention's effect〕

The simultaneous automatic connection device for a plurality of pipes according to the present invention is configured such that one flange is provided with pipe ends of a plurality of pipes connected to equipment on one side, and the other flange is connected to equipment on the other side. The pipe ends of the plurality of pipes are mounted so as to face each of the pipe ends of the one of the plurality of pipes, and a valve seat is provided at each of the plurality of pipe ends mounted on the two flanges. In addition, a valve body is provided on each of the valve seats to be brought into contact with and separated from each other by individual operating means, and flange contacting / separating means having locking claws at both ends of one of the flanges is provided. When a plurality of pipes are allowed to communicate with each other when they are in contact with each other, and when the plurality of pipes are in communication with each other, means for tightening both flanges is provided. And
Since the interview state was maintained by tightening means,
Leakage of liquid etc. from the pipe end does not occur at all,
Since both flanges are locked by the tightening means, even if there is an unexpected cylinder trouble or the like, there is no possibility that connection of a plurality of pipes will be incomplete.

Further, the flow of the liquid and the like in the plurality of pipes that can be communicated can be simultaneously performed in one direction, and the flow direction can be changed for each pipe.

In addition, when the valve body is brought into contact with or separated from the valve body, a gas injection pipe is opened in the valve seat, so that the closed state of the flow path can be confirmed by supplying an inert gas or the like to the valve seat.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention. FIG. 1 is an explanatory view of the entire apparatus, FIG. 2 is an explanatory view of a pipe end, and FIG. 3 is an explanatory view of a flange lifting / lowering apparatus. , (A) shows the closed state of the locking claw,
(B) shows a state in which the flange is locked using the locking claw. 4A and 4B are explanatory views of a flange tightening device, wherein FIG. 4A is a cross-sectional view at the time of tightening, FIG. 4B is an explanatory view of a clamp claw, and FIG.
FIG. 4 is an explanatory view of a concave portion when tightened. 1: Upper flange 4, 4 ₁ ..., 20, 20 ₁ : Pipe end 5, 21: Valve seat, 6, 24: Valve body 8, 22, 31, 31, 31 ', 37, 37': Cylinder 11: Recess , 15: lower flange 34, 34 ', 34 _1, 34 _1': locking pawl 42: clamp jaws, 43: clamp axis

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F16L 39/04 F16L 23/02

Claims (1)

(57) [Claims] 1. A flange provided with pipe ends of a plurality of pipes connected to equipment on one side and a second flange provided with pipe ends of a plurality of pipes connected to equipment on the other side. A flange and a means for bringing the one flange into contact with the other flange, and having a means for tightening, and providing a valve seat with a gas injection pipe opened at each of a plurality of pipe ends mounted on the both flanges, By moving valve bodies operated by different operating means to each of the plurality of valve seats, a plurality of pipes connected to the equipment on one side and a plurality of pipes connected to the equipment on the other side are arranged. A simultaneous automatic connection device for a plurality of pipes, wherein the pipes can be individually communicated with each other.