JPH0115992Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a multi-pipe connection structure with a speed controller, and more specifically, the present invention relates to a multi-pipe connection structure with a speed controller. A multiple pipe with a speed controller configured to connect to one port of the pneumatic equipment and further connect the other air flow path to another port of the pneumatic equipment via a detour defined in the speed controller. Concerning connection structures.

2. Description of the Related Art Pneumatic equipment has been widely used to drive and control objects using fluid, such as air. In this case, the pneumatic equipment, such as a cylinder, is usually provided with a plurality of ports for introducing and discharging air. Generally, pressurized air is introduced into these ports via a speed controller, and the piston, which is slidably disposed inside the cylinder, is configured to reciprocate at a predetermined speed by this pressurized air. has been done.
In this way, conventionally, when installing an air flow path, that is, a pipe body, to a pneumatic device such as a cylinder, multiple pipes were installed in order to minimize the installation space and to facilitate maintenance management. The pipes are tied together as much as possible.

A specific example is shown in FIG. That is, device 2
A first port 4 and a second port 6 are formed therein, and conduits 8 and 10 are connected to these ports 4 and 6, respectively. In this case, a first pipe joint 12 is interposed between the port 4 and the pipe line 8,
On the other hand, a second pipe joint 14 is interposed between the port 6 and the pipe line 10. In fact, the first pipe fitting 12 and the second pipe fitting 14 are screwed into the ports 4 and 6, respectively,
Further, the pipe line 8 and the pipe line 10 are fitted and connected to engagement pipe lines 16 and 18 that are integrally formed with the first pipe joint 12 and the second pipe joint 14, respectively.

In this case, the speed controller is e.g.
It is generally installed on the upstream side of the first pipe joint 12 and the second pipe joint 14. Therefore, in such a configuration, in order to connect the conduits 8 and 10 together as described above, the conduit 8 and the conduit 10 are connected with the cord 2.
They are bundled with wires or bands, etc., in an effort to minimize the installation space and facilitate maintenance. However, according to this type of conventional technology, even if the two conduits 8 and 10 are bundled together, the area occupied by the conduits 8 and 10 will not be reduced to any small extent. Further, if it is necessary to extend the plurality of conduits for a considerable length, the cords 20 or bands must be used to tighten the conduits at several points along the way. For this reason, a considerable number of strings, bands, etc. are required for tightening.

Furthermore, the number of pipes increases in proportion to the number of pipes, which can lead to incorrect connections between ports.
There is also a considerable possibility that the danger of so-called incorrect piping may occur.

Therefore, in order to overcome the above-mentioned disadvantages, the present applicant has focused on a double-tube structure in which a narrow-diameter tube is inserted into a relatively wide-diameter tube. For example, we have developed a pipe joint for connecting to a cylinder, and have filed numerous patent applications and utility model registration applications.

The present invention combines the pipe connection structure and speed controller related to these patent applications or utility model registration applications, further simplifies the piping configuration, reduces the area required for piping as much as possible, and The connection process itself can also be reduced.
A further object of the present invention is to provide a multi-pipe connection structure with a speed controller that is easy to maintain and manage.

In order to achieve the above object, the present invention includes a first connecting portion at one end of which the outer tube and the inner tube constituting the multiple tube are integrally fitted through a connecting mechanism,
a second connection at the other end, a speed controller disposed between the first connection and the second connection; communicating one of the air passages defined by the pipe and the inner pipe to the second connection part by bypassing the speed controller;
The other air passage is configured to be communicatively connected to the speed controller.

Next, preferred embodiments of the multi-pipe connection structure with speed controller according to the present invention will be described in detail with reference to the accompanying drawings.

In FIG. 2, reference numeral 30 indicates a multi-pipe connection structure with a speed controller according to the present invention, and this connection structure basically consists of a connection mechanism 32 and a speed controller 34. The connection mechanism 32 includes a first connection part 36a and a second connection part 36b configured opposite and symmetrical to the first connection part 36a. The first connecting portion 36a and the second connecting portion 36b have substantially the same configuration around the built-in portion 38 of the speed controller 34. Therefore, the first connecting part 36a will be described in detail, and the second connecting part 36b will be omitted by adding b to the reference numerals related to the same components of the first connecting part 36a. .

Therefore, a large-diameter hole 40a is formed in the first connecting portion 36a to expand to expose the opening to the outside.
A second hole 42a having a slightly narrower diameter is connected from the terminal end of the first hole 40a. The second hole portion 42a communicates with a third hole portion 44a having an even narrower diameter, and a fourth hole portion 46a having an even narrower diameter via the third hole portion 44a. The fourth hole 46a further communicates with a fifth hole 48a having a narrower diameter, and the fifth hole 48a communicates with the speed controller incorporating portion 38.
It is in communication with a hole 50 that opens in the axial direction. In this case, from the third hole 44a, the hole 5
The inclined hole 52a extends slightly above the
Form it.

Therefore, the multiple pipe connection mechanism 54a accommodated in the first hole 40a will be explained. First hole 4
First, a ring-shaped seal member 56 is seated at the bottom of Oa. The sealing member 56 has grooves 58a and 58b carved in its circumferential upper and lower end surfaces in order to increase the sealing effect. Seal member 56
From the viewpoint of its function, it is preferable that it is made of an elastic material such as natural rubber or synthetic rubber.

In the present invention, a check member 60 is further preferably used. The chuck member 60 is generally a ring-shaped flat plate made of highly elastic metal, and a plurality of slits 64 are defined at equal intervals in the main body 62 of the chuck member 60. A claw portion 66 is formed at one end of the main body 62 by bending it inward. As can be easily understood from the figure, it is preferable that the tip of the claw portion 66 be sharpened. A collet 68 fits over the chuck member 60. This collet 68 is also preferably constructed from a flexible member such as synthetic resin,
Like the chuck member 60, a ring-shaped main body 7
A plurality of slits 72 are formed at equal intervals. One end of the main body 70 is formed with a thickened bulge 74 that points outward, and a ring-shaped flange 76 is formed on the other end.
It will be readily appreciated that the presence of the slit 72 allows the body 70 to be bent inwardly or outwardly.

Next, in the present invention, a guide member 78 that fits on the outside of the collet 68 is provided. As can be easily understood from FIG. 4, the guide member 78 has a flange 80 formed at its upper end that extends inwardly, and a flange 80 that extends inwardly at its lower end. An inclined surface 82 having an angle of . Furthermore, an annular protrusion 84 is provided on the ring-shaped guide member 78 at the upper part of the inclined surface 82.
A bulge is formed.

On the other hand, reference numeral 86 indicates a release button. The release button 86 has a cylindrical shape,
An outwardly extending flange 88 is formed at its upper end. Furthermore, an edge 90 having a gentler inclination angle than the claw portion 66 of the chuck member 60 is formed at the lower end of the release bush 86. A plurality of slits 92 are formed in the release button 86 from the middle of the cylindrical body toward the edge 90, and between the slits 92 and the flange 88, the wall thickness of the release button 86 is A stepped portion 94 is formed by thinning.

Next, the speed controller 34 incorporated in the speed controller incorporating section 38 will be explained.

The speed controller 34 is formed into a substantially cylindrical shape, and a protrusion 102 that is exposed to the outside from the speed controller incorporating portion 38 is formed at the tip of a main body 100 of the speed controller 34 made of a metal material. A screw groove 104 is formed at the tip of the protrusion 102 . An annular protrusion 106 is formed in the main body 100 inside the hole 50, and the annular protrusion 106 and the protrusion 10
2, an annular groove 108 located within the hole 50 is defined, and a seal ring 110 is fitted into the annular groove 108.

Furthermore, a second annular groove 112 is carved in the main body 100, which is located above the annular projection 106 and has a reduced diameter, and a check valve 114 made of a flexible member is incorporated into the second annular groove 112. . The bent tip of the check valve 114 therefore connects to the speed controller embedding portion 38 that defines the hole 50.
comes into contact with the inner circumferential wall of the The main body 100 is located above the second annular groove 112 and has a bulge 116 . The bulging portion 116 contacts, on the one hand, the inner circumferential wall portion of the speed controller incorporating portion 38, and a third annular groove 118 is further formed using this bulging portion 116, and the third annular groove 118 is formed using the bulging portion 116. 11
8 has the speed controller built-in part 3 inside.
8, which achieves a sealing effect by pressing against the inner circumferential wall of 8.
The seal ring 120 is fitted. Note that a speed controller 3 is located further above the bulge 116.
4, a fourth annular groove 122 is defined that communicates with the inclined hole 52a. A fifth annular groove 124 is further formed above the annular groove 122, and a fourth seal ring 126 is fitted inside the fifth annular groove 124.

Next, the upper end of the speed controller main body 100 bulges out to engage the upper end of the speed controller incorporating part 38, and the bush 128 is fitted into the center thereof. Butsuyu 128
A spiral groove is carved inside. Therefore, the hole 130 formed along the spiral groove and the axis of the main body 100 reaches the upper part of the check valve 114, and once reduces in diameter to become a hole 132, which further expands. The diameter becomes a hole 134 and opens at the end of the protrusion 102 . in this case,
A hole 136 that crosses the hole 130 communicates with the hole 130, and a hole 138 that crosses the hole 134 similarly to the hole 136 communicates with the hole 134. Therefore, a rod 142 is screwed into the hole 130 by means of a knob member 140. The rod 142 is once smoothed through the threaded portion, and flanges 144 and 146 are formed at a predetermined distance at its tip. flange 144
A seal member 148 is fitted between and 146,
Further, the tip of the flange 146 is formed into a tapered shape to form a valve body 147. The valve body 147 is configured to sit on a seating portion 150 formed at the boundary between the hole portion 132 and the hole portion 130. In addition, in the figure, reference numeral 152 indicates a stopper member that is latched to the speed controller built-in part 38 via the protrusion 102.

Next, a connecting pipe body connecting multiple pipes 200, which will be described later, will be explained. The connecting pipe body 160 has a hole 16
It consists of a large diameter part 164 and a small diameter part 166 through which the ring 2 passes through, and the small diameter part 166 is formed with an annular protrusion 168 that projects outward. A flange 170 is provided between the large diameter portion 164 and the small diameter portion 166, and this flange 170 has notches 172a and 172.
It has b.

The multi-pipe connection structure with a speed controller according to the present invention is basically constructed as described above.Next, its operation and effects will be explained.

First, the speed controller 34 is assembled into the speed controller incorporating section 38. That is, the speed controller main body is inserted into the hole 50 of the speed controller incorporating section 38. As a result, the protruding portion 102 is exposed to the outside from the speed controller incorporating portion 38. As a result, the inclined hole 52a communicates with the annular groove 122, and the annular groove 122 further communicates with the inclined hole 52b. On the other hand, the fifth hole 48a communicates with the hole 50,
Therefore, the holes 136, 132, 134
reaches a state of communication. Moreover, in this case, the hole 13
8 is in communication with the hole 134, but this hole 1
38 is not in communication with the hole 136. That is, this is because the elastic peripheral edge of the check valve 114 is in pressure contact with the inner peripheral wall of the hole 50.
In such a state, the spiral groove 1 of the protrusion 102
04 to connect the first connecting portion 36a and the second connecting portion 3.
6b and the speed controller 34 are integrally screwed into one port 302a of the cylinder 300 (see FIG. 4).

After the preparation stage as described above, the first connection portion 36a is
A double pipe is incorporated in the. First, the first hole 4
The seal member 56, check member 60, collet 68, guide member 78 and release button 86 are assembled into 0a. That is, the seal member 56 is seated at the end portion of the first hole 40a, and after the seal member 56 has been placed and fixed in advance in this manner, the collet 68 is fitted onto the chuck member 60. As a result, the flange 76 of the collet 68 abuts against the circumferential upper end of the chuck member 60. In this manner, chuck member 60 and collet 68 engage the upper end of seal member 56 in a unitary configuration. That is, the inwardly sloping pawls 66 engage the curved inner ends of the seal member 56. Therefore, the guide member 7 is inserted into the first hole 40a.
8 is attached. That is, the metal guide member 78 is introduced into the hole 40a, and the annular protrusion 84 engages with the inner peripheral wall defining the first hole 40a while the first connecting portion 36a is bent. It will be worn.

The release bush 86 is then inserted into the guide member 78 . As described above, the release button 86 has an edge 90 that forms a gentler inclination angle than the claw portion 66, so that the release button 86 can be inserted into the check member 60 via the guide member 78. Then, the tip of the edge 90 comes into contact with the claw portion 66. The preparation stage is completed in such an embedded state,
Next, the multiple tube 200 is connected to the release button 8.
6 is introduced inside.

As shown in FIG. 3, the multiple tube 200 basically consists of an outer tube 202 and an inner tube 204 disposed concentrically within the outer tube 202.
Therefore, a fluid passage 206 is defined between the outer tube 202 and the inner tube 204, and the inner tube 204
A passage 208 is defined in 04.

The multi-tube 200 having the above structure is generally made of a flexible synthetic resin material, and its lower end is deviated by 90 degrees with respect to the axial direction using a common cutter knife, that is, it is cut at a right angle. Cut it into pieces. Therefore, the multi-tube 200 configured in this way
The outer tube 202 and the inner tube 204 are integrally connected to the hole 40.
a, that is, it is inserted through the central part of the release bush 86, and as a result, the outer tube 202 is inserted into the second
While reaching the vicinity of the end of the hole 42a, the inner tube 20
4 is engaged with the small diameter portion 166 of the connecting tube body 160. In this case, the annular protrusion 168 is connected to the inner tube 204.
It functions to prevent the material from slipping out. As a result of inserting the multiple tube 200 into the hole 40a in this way, the passage 20
8 is the hole 162, the hole 48a, the holes 136, 13
2 to reach a state of communication with the hole 134. In addition,
Prior to this, the knob member 140 is screwed in advance to separate the tip of the flange portion 146 from the seating portion 150.

Next, the tube body 402 made of a flexible member is also connected to the second connection portion 36b by the multiple tube connection mechanism 54a.
The connection is made via a multi-pipe connection mechanism 54b that employs substantially the same configuration as . This tube body 402 is in communication with a passage 206 defined by the outer tube 202 and the inner tube 204 of the multiple tube 200 via the inclined hole 52a, the annular groove 122, and the inclined hole 52b. On the other hand, this pipe body 402 can be connected to the other port 302b of the cylinder 300 via a pipe joint 400. In this case, as shown in FIG. 5, the pipe joint 400 differs from the structure shown in FIG. 2 in that it does not have the second connecting portion 36b, but the remaining parts have substantially the same structure. Therefore, the same reference numerals are given to the same components, and detailed explanation thereof will be omitted. In this case, the tubular body 402 may be a steel pipe instead of a particularly flexible tube member. When a steel pipe is used in this manner, the tubular body 402 made of the steel pipe may be locked with a seal member 404 and a locking member 403 (see FIG. 5).

Therefore, the cylinder 3 is connected via a switching valve (not shown).
Pressure fluid is alternately introduced into the two ports 302a and 302b of 00. That is, when pressure fluid is introduced from the flow path defined inside the inner tube 204, this pressure fluid flows through the fifth hole 48a and the hole 1.
36, and is introduced into one port 302a of the cylinder 300 through the hole 132 and the hole 134. At this time, the peripheral edge of the flexible member of the check valve 114 separates from the inner peripheral wall defining the hole 50, thereby substantially opening the valve body and assisting the flow of the pressure fluid. As a result, the piston 304 within the cylinder 300 is displaced toward the other port 302b.

Next, when the switching valve is switched and pressure fluid is introduced into the passage 206 defined by the outer pipe 202 and the inner pipe 204, this pressure fluid is introduced into the inclined hole 52.
a, through the annular groove 122 and the inclined hole 52b to the second connecting part 36b, and is introduced from the pipe line connected to the second connecting part 36b to the other port side, and eventually the piston 304 is connected to this cylinder. 300
the one port 30 by sliding displacement within the
A backward motion is performed to the 2a side. In this backward motion, the pressurized air that has already been introduced into the port 302a side is led out to the inner tube 204 side via the speed controller 34. That is, in the speed controller 34, the distance between the seating portion 150 and the valve body 147 is regulated by the spiral control of the knob member 140. Flow rate control is performed. As a result, the speed of the piston's backward motion becomes slower and speed control is performed.

According to the present invention, it is possible to incorporate a speed controller and multiple pipes with an extremely simple configuration as described above.Therefore, firstly, the number of piping steps can be reduced, and the area occupied by the speed controller and pipes can be reduced. It can be extremely reduced. Furthermore, since piping work can be easily performed via a multiple pipe connection mechanism, such processes can be further simplified.

Furthermore, for example, the speed controller 3
4, the first connecting portion 36a and the second connecting portion 36b
Since it is possible to change the position arbitrarily,
Another advantage is that piping can be done without being restricted by the position of the joint.

Although the present invention has been described above with reference to preferred embodiments, the present invention is not limited to these embodiments, and various improvements and changes in design are possible without departing from the gist of the present invention. Of course.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram schematically showing a piping structure according to the prior art, Fig. 2 is a partially omitted vertical sectional explanatory diagram of a multi-pipe connection structure with a speed controller according to the present invention, and Fig. 3 is the same as Fig. 2. FIG. 4 is a schematic explanatory view of the multi-pipe connection structure with a speed controller installed in a cylinder, and FIG. 5 is a partially omitted exploded perspective view of the multi-pipe connection structure shown in FIG. It is a longitudinal cross-sectional explanatory view when the pipe body connected to is composed of a steel pipe. 30... Multiple pipe connection structure with speed controller, 32... Connection mechanism, 34... Speed controller, 56... Seal member, 60... Chack member, 68... Collet, 78... Guide member, 86... Release button, 114...Check valve, 147...Valve body, 150...Seating portion.

Claims (1)

[Scope of utility model registration request] A first connecting portion for integrally fitting the outer tube and the inner tube constituting the multiple tube through a connecting mechanism is provided at one end, and a second connecting portion is provided at the other end. A speed controller is disposed between the first connection part and the second connection part, and the air passage defined by the inner pipe or the outer pipe and the inner pipe is A multi-pipe connection structure with a speed controller, characterized in that one of the air passages is configured to bypass the speed controller and communicate with the second connection part, and the other air passage is configured to be communicatively connected to the speed controller.