JPH0443672Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a connecting type pipe joint, and more specifically,
Relates to a connecting type pipe joint that allows pipe joints to be connected as easily as necessary in order to supply pressure fluid derived from at least a plurality of fluid passages to a desired number of fluid pressure devices. .

[Background of the invention] Conventionally, manifolds have been employed to collectively supply fluid such as pressurized air to fluid pressure devices such as actuators disposed inside factories. This is because space saving is promoted and maintenance management is facilitated. Incidentally, manifolds are often made of die-cast products made of light metal. Therefore, there is a limit to the number of fluid pressure devices that should be connected to the manifold via pipes. In other words, if the number of fluid pressure devices is greater than the number of pipes connected to the manifold, a separate manifold must be added. On the other hand, if the number of fluid pressure devices is small, the number of manifolds Because of the large size, it is not possible to save space, and it is complicated to close unnecessary portions of the tube connection holes with blind plugs or the like.

Furthermore, when attempting to supply fluid from a manifold to an actuator or the like, for example, at least two pipe lines connected to an inlet port and an outlet port of each actuator are required. In this case, if a large number of actuators and the like are arranged at a considerable distance from the manifold, the piping of the conduit becomes complicated and maintenance management is not easy. Furthermore, since the pipes are collectively connected to the manifold, pressure loss may occur depending on the length between the pipes and the actuator.

[Purpose of the invention] The present invention has been made to overcome the above-mentioned disadvantages, and includes a main pipe joint defining a plurality of fluid passages, and a number of fluid passages corresponding to the plurality of fluid passages. a plurality of sub-pipe joints that can be connected to each other and define a main pipe joint, and the sub-pipe joints, the number of which corresponds to the number of the main pipe joints and the number of fluid pressure devices, are engaged and connected so as to be linearly pushed into each other. With this structure, the required number of pipe fittings can be placed in the necessary locations, resulting in space savings and making it easier to assemble the pipe fittings themselves. The purpose of the present invention is to provide a connecting type pipe joint that achieves the following.

[Means for Achieving the Object] In order to achieve the above object, the present invention comprises: a main pipe joint defining at least two fluid passages; one or more sub-pipe joints defining first and second fluid passages that communicate with the passage; an end connecting member that closes the first and second fluid passages of the sub-pipe joint; disposed in each fluid passage of the main pipe joint,
a pipe body connection mechanism for connecting a plurality of single pipes or double pipes by leading the fluid to the side of the sub-pipe joint or introducing the fluid from the sub-pipe joint, the two fluids of the main pipe joint; The first fluid passage and the second fluid passage of each of the secondary pipe joint and the main pipe joint are separated by a predetermined distance and extend parallel to each other. It is characterized in that the first fluid passage and the second fluid passage of the auxiliary pipe joint are connected through a claw piece, and the first fluid passage and the second fluid passage are closed through an end connecting member.

[Embodiments] Next, preferred embodiments of the connecting type pipe joint according to the present invention will be described in detail with reference to the accompanying drawings.

The connecting type pipe joint 10 according to the present invention basically includes a main pipe joint 12, a sub pipe joint 14, and an end connecting member 1.
It consists of 6. Therefore, first, the main pipe joint 12 will be explained in detail.

3 to 5, reference numeral 20 indicates a main body, and this main body 20 has a pair of fixing members 22a, 2 for fixed positioning on a base (not shown).
2b, a cylindrical tube 24 integrally formed with the fixing members 22a and 22b, a first connecting portion 26 extending in the axial direction of the tube 24 and formed in a bulging manner, It basically consists of two connecting parts 28. The fixing members 22a, 22b are formed with positioning holes 30a, 30b for fixing the main pipe joint 12 by screwing bolts into a base (not shown). Pipe body 2
Arm members 32a and 32b extending from the first connecting portion 26 and second connecting portion 28 of No. 4 to lock the sub-pipe joint 14 are formed in a protruding manner, and have claw pieces 33a and 33b at their respective tips. is formed.

The first connecting portion 26 and the second connecting portion 28 are cylindrical, and the first tube body 40a, A ring-shaped holding member 42 for seating and holding the tip of the second tubular body 40b
a and 42b are fitted and engaged (see FIG. 8).
That is, the holding member 42a is located at the bottom of the first hole 34 and has a stepped portion 4 that locks the end of the first tube 40a.
3, and the tube connecting mechanism 44 is attached to the first hole 34 in relation to the holding member 42a. The tube connection mechanism 44 is composed of a chuck 46, a collet 48, a release button 50, and a guide 52. Details of this tube connection mechanism 44 are disclosed in, for example, Japanese Utility Model Application No. 61-176988.
In addition, in the figure, reference numeral 51 indicates a seal ring.

A holding member 42b and a tube connection mechanism 44 having the same configuration as the first hole 34 are also attached to the second hole 36, and therefore, detailed explanation thereof will be omitted.

Incidentally, a first passage 54 is defined inside the main body 20 so as to communicate with the first hole 34 and is unevenly distributed from the center of the main body 20 to one side.
A second passage 56 is defined from the second hole 36 so as to be unevenly distributed from the center of the main body 20 to the other side. That is, the first passage 54 and the second passage 56 are fluidly separated by the partition wall 53. In this case, the main body 20 has a circumferential first annular groove 55.
and a second annular groove 57, and further a groove 5 extending in the diameter direction of the annular groove 57 in the partition wall 53.
9 is defined. Annular grooves 55, 57 and groove 59
An integrally formed gasket 61 is fitted into the.

Next, the sub-pipe joint 14 will be explained. The sub-pipe joint 14 includes a cylindrical main body 60, a protrusion 62 extending in the axial direction of the main body 60 and surrounding it, and protrusions 64 each having a semicircular shape inside the protrusion 62.
a, 64b. Arm member 32 of main body 20
Similarly to a and 32b, arm members 66a and 66b extend from this sub-pipe joint 14, respectively, and claw pieces 68a and 68b are directed inward at the tips of the arm members 66a and 66b, respectively. It is formed protrudingly. The proximal ends of the arm members 66a, 66b are provided with claw pieces 33a, 3 of the main pipe joint 12 and the sub pipe joint 14.
3b, 68a, 68b engage with the locking recess 7
0a and 70b are defined.

According to the above configuration, an annular groove 72 is defined between the protrusion 62 and the protrusions 64a and 64b,
A groove 74 is formed between the protrusions 64a and 64b that are spaced apart from each other.
It is easy to understand that this is defined. In addition,
A gasket 61 is inserted into the annular grooves 72 and 74 in the same manner as in the case of the main body 20.

On the other hand, inside the main body 60, a half-moon-shaped third passage 80 for communicating with the first passage 54 is provided in the claw piece 6.
8a side, and on the other hand, a semicircular fourth passage 84 is formed in this main body 60 via the partition wall 53 (see FIG. 8). A cylindrical body 86 extends upward in the upper part of the main body 60, and a fifth passage 88 communicating with the third passage 80 is defined therein, while communicating with the fourth passage 84. A sixth passage 90 extends above the cylinder 86. The cylindrical body 86 has a first hole 34 and a second hole 36.
Similarly, a tube connection mechanism 44 is fitted.
As can be easily understood from FIGS. 3, 6, and 7, in this case, the cylindrical body 86 is erected slightly offset from the main body 60. In the figure, reference numeral 95 indicates a member that is seated on a step formed inside the cylindrical body 86 and holds the inner tube.

Therefore, if the double tube 92 is inserted into the tube connection mechanism 44, the passage 94a defined by the inner tube of the double tube 92 will be in communication with the fifth passage 88,
On the other hand, a passage 94b defined by the inner tube and the outer tube of the double tube 92 is in communication with the sixth passage 90.

Next, the end connecting member 16 will be explained. This end connecting member 16 is for closing the third passage 80 and fourth passage 84 of the plurality of sub-pipe joints 14, and the main body 100 has a cylindrical shape,
A bulging portion 102 circulating around one end side of this main body 100
are formed, and recesses 104a, 104b are defined on the other end side, in which the claw pieces 68a, 68b of the arm members 66a, 66b of the sub-pipe joint 14 engage. A through hole 106 extending in the diametrical direction is formed at the tail end of the main body 100, and a third passage 80 and a fourth passage 84 of the sub-pipe joint 14 are terminated at this end connecting member 16. Sealing holes 108a, 108
Form b.

The connecting type pipe joint according to the present invention is basically constructed as described above, and its operation and effects will be explained next.

First, the required number of sub-pipe joints 14 are connected to the main pipe joint 12. That is, the main pipe joint 12
The main body 20 constituting the sub-pipe joint 14 is arranged coaxially with the main body 60 of the sub-pipe joint 14, and the main pipe joint 12 is connected to the sub-pipe joint 1.
Press linearly to the 4th side. As a result, the claw pieces 33a of the arm members 32a, 32b of the main pipe joint 12,
33b engages with the locking recesses 70a and 70b, respectively. At this time, the gasket 61 fitted into the second annular groove 57 and the groove 59 of the main pipe joint 12 comes into pressure contact with the sub pipe joint 14, thereby ensuring airtightness between the two. Similarly, the claw pieces 68a, 68b of one sub-pipe joint 14 are connected to the locking recesses 70a, 68b of the other adjacent sub-pipe joint 14.
70b and the claw piece 6 of the last sub-pipe joint 14.
8a, 68b into the recess 104 of the end connecting member 16.
a and 104b, respectively. In this way, an arbitrary number of sub-pipe joints 14 are connected to the sub-pipe joints 14 connected to the main pipe joint 12 in correspondence with the number of actuators etc. to which fluid is to be supplied.
As a result, the first passage 54 and second passage 56 of the main pipe joint 12 and the third passage 80 and fourth passage 84 of the sub-pipe joint 14 are brought into airtight communication. That is, the third passages 80 of the plurality of sub-pipe joints 14 are coaxially connected to each other, and the fourth passages 84 are also coaxially connected to each other. In this state, the positioning fixing member 2
Bolts are inserted into the holes 30a, 30b of 2a, 22b and the through hole 106, and the main pipe joint 12, the plurality of sub pipe joints 14, and the end connecting member 16 are integrally fixed on a base (not shown).

Therefore, the first tube 40a is inserted into the tube connection mechanism 44 of the main pipe joint 12. On the other hand, the second hole 36
Similarly, the second tube body 40b is inserted through the tube body 40b. In addition, for a plurality of sub-pipe joints 14, a passage 94a is provided.
A double tube 92 having a passage 94b and a passage 94b defined therein is inserted into a hole defined in the cylindrical body 86. As a result, the first tube 40a communicates with the third passage 80 via the first passage 54, and the third passage 80 communicates with the passage 94a via the fifth passage 88. On the other hand, the second pipe body 40b passes through the second passage 56 to the fourth pipe body 40b.
The fourth passage 84 is in communication with the passage 94b of the double pipe 92 via the sixth passage 90. Therefore, if an actuator or the like is connected to the double pipe 92, the first pipe body 40a and the second pipe body 4
It becomes possible to suitably supply the pressure fluid, for example, air, supplied from the auxiliary pipe joint 14 and the main pipe joint 12 to the actuator (not shown), etc., as described above. , 33b, 68a, 68
In addition, since the main pipe joint 12 and the sub pipe joint 14 are formed with grooves in which the gasket 61 is fitted, there is no risk of pressure fluid leaking to the outside. Further, by sequentially connecting the sub-pipe joints 14 for each pneumatic device that requires this pressure fluid, it is possible to achieve the effect that the required number can be provided.

[Effects of the invention] As described above, the invention has an extremely simple configuration, does not take up much space, and furthermore, only the number of connecting members corresponding to the number of actuators can be prepared. For example, pressure fluid can be supplied to each actuator with a simple connection operation. In this embodiment, the pipes connected to the main pipe joint each have a single pipe structure with only one passage, but for example, the connection mechanism of the double pipe used in the sub pipe joint may be Needless to say, if the main pipe joint is formed as follows, a double pipe can be connected to the main pipe joint.

Although the present invention has been described above with reference to preferred embodiments, the present invention is not limited to this embodiment, and various improvements and changes in design can be made without departing from the gist of the present invention. Of course.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a connecting type pipe joint according to the present invention;
Fig. 2 is an exploded perspective explanatory view of the sub-pipe fitting and the end connecting member in the coupling-type pipe fitting shown in Fig. 1, Fig. 3 is a plan view of the coupling-type pipe fitting shown in Fig. 1, and Fig. 4 is the first
Figure 5 is a left side view of the connecting type pipe fitting shown in Figure 1, Figure 6 is a right side view of the connecting type pipe fitting, and Figure 7 is the connecting type pipe fitting shown in the figure. FIG. 8 is a longitudinal cross-sectional view of the sub-pipe joint constituting the sub-pipe joint, and FIG. 8 is a cross-sectional view of the connecting type pipe joint. 10...Connection type pipe joint, 12...Main pipe joint, 1
4...Sub-pipe joint, 16...End connecting member, 20...
...Body, 22a, 22b...Fixing member, 32a,
32b... Arm member, 33a, 33b... Claw piece, 44... Tube connection mechanism, 60... Main body, 61
...Gasket, 66a, 66b...Arm member, 68a, 68b...Claw piece, 92...Double pipe,
100...Main body, 102...Bulging portion, 108a,
108b...Sealing hole.

Claims (1)

[Claims for Utility Model Registration] A main pipe joint defining at least two fluid passages, and first and second fluid passages connected to the main pipe joint and communicating with respective fluid passages of the main pipe joint. one or more sub-pipe joints defined therein; an end connecting member that closes a first fluid passage and a second fluid passage of the sub-pipe joint; disposed in each fluid passage of the main pipe joint;
a pipe body connection mechanism for connecting a plurality of single pipes or double pipes by leading the fluid to the side of the sub-pipe joint or introducing the fluid from the sub-pipe joint, the two fluids of the main pipe joint; The first fluid passage and the second fluid passage of each of the secondary pipe joint and the secondary pipe joint are separated by a predetermined distance and extend parallel to each other, and the main pipe joint, the secondary pipe joint, and the end connecting member are connected to each other. A connecting type pipe joint characterized in that the first fluid passage and the second fluid passage of the sub-pipe joint are connected through a claw piece and are closed through an end connecting member.