JPH018797Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a connector for multiple pipes, and more specifically, for connecting multiple pipes each having a plurality of fluid passages formed to the input ports and output ports of pneumatic equipment such as solenoid valves and cylinders. Concerning multiple pipe connectors.

2. Description of the Related Art Various devices for driving or controlling objects using fluids such as air have been widely used. In this case, the various devices described above usually include an input port for introducing air and an output port for removing air. Therefore,
Pipe lines are connected to the input port and the output port, respectively.

Conventionally, therefore, in order to minimize the installation space for these pipes and to facilitate their maintenance and management, the pipes for introducing and discharging the fluid have been arranged in a group as much as possible. A specific example is shown in FIG.

That is, an input (output) port 4 and an output (input) port 6 are formed in the device 2, and conduits 8 and 10 are connected to these ports 4 and 6, respectively. A first connector 12 is interposed between the conduit 8 and the port 4, while a first connector 12 is interposed between the port 6 and the conduit 1.
A second connector 14 is interposed between the connector 0 and the connector 0. In fact, the first connector 12 and the second connector 14 are threaded into the ports 4, 6, respectively, and the conduit 8 and the conduit 10 are connected to the first connector 12, respectively.
The second connector 14 is fitted into and connected to engagement conduits 16 and 18 formed integrally with the second connector 14.

Therefore, in such a configuration, pipe line 8 and pipe line 1
0 is bundled with strings 20 or bands, etc., in an effort to reduce the installation space as much as possible and to facilitate maintenance and management. However, in this prior art, for example, in a device with many output ports such as a manifold type solenoid valve, the pipes 8 and 10 are
The number of tubes that make up the system increases, and the configuration itself becomes more complex. Furthermore, as described above, since the conduit itself must be secured at several locations with strings 20, bands, etc., a considerable number of man-hours are required for the tightening. Furthermore, the number of piping steps increases in proportion to the number of tubes, and as a result, there is a considerable risk of erroneous connections between ports, so-called erroneous piping. In addition, if multiple tubes are tightened with strings or bands, in the prior art as mentioned above, as the piping pitch becomes narrower, even if an attempt is made to use a connector, the tube itself is not connected to the connector due to the narrow piping pitch. It's not easy to plug into. Moreover, the number of connectors increases, which inconveniently increases the number of piping steps.

Therefore, as a result of intensive research and ingenuity, the inventors of the present invention focused on a multi-tube in which multiple fluid passages are defined within a single tube, and found that A connector defining a fluid passage is prepared, and the multi-pipe is airtightly connected to the pipe portion protruding from the connector, and a bolt that is screwed into a device such as a solenoid valve or cylinder is engaged with the connector. If the multiple tubes and equipment are connected through holes drilled in these bolts, there is no need to tighten the tubes with strings, bands, etc., and there is less possibility of incorrect piping. It has been found that a multi-pipe connector capable of simply and reliably connecting a fluid passage to a device without particularly considering the piping pitch can be obtained, and that the various problems described above can be solved at once.

Therefore, the purpose of the present invention is to provide a multi-pipe connector that can minimize the installation space, avoid incorrect piping, minimize the number of connectors, and can be manufactured at low cost. It is in.

In order to achieve the above object, the present invention provides a body including at least one fluid passage and a first clamping means and a second clamping means defining the fluid passage, the first clamping means The means enters the body, and the first tightening means and the body have portions protruding from each other to form conduits in which the multiple pipes engage, and a sharp annular protrusion is provided at the multiple pipe engaging portion. the first clamping means and the second clamping means are screwed into a fluid passage formed in the object through the body, and the first clamping means is screwed into a fluid passage formed in the object. The multiple pipes communicate with the fluid passage of the object through the fluid passage, while the second tightening means communicates the fluid passage of the body with the fluid passage of the object through the fluid passage, and It is characterized by being configured to be attached to an object.

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

2 and 3, reference numeral 30 indicates a multi-pipe connector according to the present invention. This connector 30 has a rectangular parallelepiped body 32 with steps.
The body 32 includes a first fluid passage 34 that bends from the center thereof. The first fluid passage 34 communicates with a large diameter hole 36 that passes through the body 32 in the vertical direction in the figure.
Corresponding to the upper end and lower end of the hole 36,
Annular grooves 38a, 38b are cut into the body 32, and seal rings 40a, 40b are fitted into the annular grooves 38a, 38b. On the other hand, body 3
2, a hole 42 having a slightly wider diameter than the first fluid passage 34 is vertically formed on the opposite side of the hole 36, and the open end thereof is exposed to the stepped portion 43 of the body 32. An annular groove 46 into which a seal ring 44 is fitted is formed at the lower end of the hole 42 .

Incidentally, a first conduit 48 is formed extending above the first fluid passage 34 and protrudes from the body 32, and a bolt-shaped first tightening member 47 is fitted into the hole 42. A second conduit 50 is made to protrude from the upper end of the first tightening member 47,
On the other hand, a screw groove 47a is carved in the lower end portion.
In this case, a second fluid passage 49 penetrating from the upper end to the lower end of the first tightening member 47 is defined. Therefore, the first pipe line 48 and the second pipe line 50
and have the same height, and sharp annular protrusions 52 and 54 are formed on the outside near the upper end thereof, respectively. As shown in FIGS. 2 and 3, it will be easily understood that the annular protrusions 52, 54 have downwardly oriented inclined surfaces.

Next, the present invention further provides a bolt, that is, a second tightening member 56. Second tightening member 5
6 has a threaded groove 56a formed at its lower end, and a curved fluid passage 58 provided inside its elongated body.

The connector for multiple pipes according to the present invention is basically constructed as described above.Next, the function and effect when connecting multiple pipes to a solenoid valve, cylinder, etc. using this connector will be explained. .

First, an object 70 having holes corresponding to the holes 36 and 42, such as a solenoid valve or a cylinder, is prepared in advance. In this case, device 70 is provided with fluid passages 72 and 74, respectively. On the other hand, the multiple pipe 76 is connected to the pipe line 48,
It has fluid passages 78, 80 corresponding to 50.
It is preferable that the multi-tube 76 is made of a highly flexible member made of soft synthetic resin or the like.

Next, the seal ring 40b is fitted into the annular groove 38b, and the seal ring 40a is fitted into the annular groove 38a. A seal ring 4 is provided in the annular groove 46.
Fit 4. In the above arrangement, the body 32 is placed on the device 70, and the hole 3 is
6 and the fluid passage 74 as well as the second fluid passage 49 and the fluid passage 72 are installed in a state of communication. In this state, the first tightening member 47 and the second
The tightening member 56 passes through the holes 42 and 36 and is fitted into the fluid passages 72 and 74, respectively. That is,
The fluid passages 72, 74 of the device 70 have threaded grooves 82.
Since the hexagonal head 47b of the first tightening member 47a and the head 56b of the second tightening member 56 are rotated, the threaded grooves 47a, 56a at the tips of the hexagonal heads 47b of the device 70 are carved. Screw groove 82
a, 82b, and as a result, the second
These fastening members 47, 56 securely secure the body 32 to the device 70 as shown. For this reason, the fluid passage 5 of the second tightening member 56
8 communicates with the first fluid passage 34, and also communicates with the second fluid passage 34.
As shown in the figure, since a slight gap 84 is formed between the hole 36 and the wall of the second tightening member 56, the first fluid can flow regardless of the helical angle of the second tightening member 56. The fluid passage 34 and the fluid passage 58 of the second tightening member 56 can be maintained in a communicating state.

Therefore, the multiple pipe 76 is fitted into the pipes 48 and 50 to connect the fluid passages 78 and 34, and the fluid passages 80 and 49, respectively. In this case, since the multiple tube 76 is formed of a flexible member, the annular protrusion 52,
54 press against the sides of the multi-tube 76 to ensure fluid tightness. That is, the annular protrusion 5
2 and 54 have downwardly oriented inclined surfaces, so that the multiple tubes 76 can be fitted smoothly,
Once engaged, it reliably prevents insertion and removal, and also serves as a sealing member during fluid flow.

In such an assembly configuration, if fluid, for example, air, is sent from the multiple pipe 76 side through the fluid passage 78, the air passes through the first fluid passage 34, the hole 58, and the fluid passage 74 to the device 70. It reaches the inside of the body and performs the specified function. On the other hand, the recirculating air passes from the fluid passage 72 through the second fluid passage 49, reaches the fluid passage 80 of the multiple pipe 76, and returns.

Further, when removing the multiple tube 76 from the multiple tube connector 30 according to the present invention, it is sufficient to simply pull it out by hand while shaking it from side to side.

Next, FIG. 5 shows another embodiment of the multiple pipe connector according to the present invention. In this embodiment, the same reference numerals as in the previous embodiment indicate the same components.

Therefore, the difference between this embodiment and the previous embodiment lies in the fact that the shapes of the multiple tubes are different. That is, as shown in FIG. 6, the multiple tube 90 according to this embodiment is a double tube composed of a large-diameter tube 90a and a small-diameter tube 90b arranged concentrically in a plane. Multi-pipe 90 shaped like this
In order to fit together, the connector 30 employs a double-tube structure, especially for the tube body having an annular protrusion formed protrudingly formed on the body. That is, as can be understood from FIG. 5, from the body 32, the pipe body 9
A large diameter tube body 92 into which Oa fits is formed protrudingly, and a first tightening member 47 having a tube body 94 formed in a protrusive manner is fitted inside the tube body 92 to fit thereinto a tube body 90b. The annular protrusion 52 is provided on the outside of the tube body 92.
An annular protrusion 96 having a similar shape is formed,
On the other hand, an annular protrusion 98 having a similar structure is formed protrudingly on the outside of the tube body 94.

In such a configuration, for example, multiple pipes 9
First, the inner tube body 90b constituting the tube body 9
4, and then insert the tube body 90a into the outer tube body 9.
2, the multiplex tube 90 and the device 70 are effectively connected via the connector 30.

FIG. 7 shows yet another embodiment of the multiple pipe connector according to the present invention. In this embodiment as well, the same reference numerals as in the previous embodiment indicate the same components.

This embodiment is similar to the embodiment shown in FIG. A particular difference is that the annular protrusion 100 of the tube 92 protruding from the body 32 is formed to protrude inward. Therefore, in such a shape, the multiple tube 90 shown in FIG. 6 or the multiple tube 102 shown in FIG. 8 fits suitably. Multiple tube 102
As can be easily understood from FIG. 8, stays 104a and 10 are provided to keep the outer tubular body 102a always a certain distance apart from the inner tubular body 102b.
4b, 104c and 104d are formed. The stays 104a to 104d prevent the fluid passage defined between the tubes 102a and 102b from deforming even if the multiple tube 102 is made of a flexible member.

Therefore, the multiple pipe connector 30 shown in FIG.
For example, the outer tube 102a of the multiple tube 102 fits into the tube 92, and the inner tube 102a fits into the tube 92.
b fits into the tube body 94. In this way, the multiple pipe 102 and the device 70 can be conveniently and continuously connected by the connector 30.

According to the present invention, as described above, it has become possible to communicate airtightly and reliably between multiple pipes forming a plurality of fluid passages and various devices such as solenoid valves and cylinders in a small space. Therefore, it is possible to easily avoid the work of bundling the tubes constituting the fluid introduction system and the fluid extraction system, or the possibility of incorrect piping. In addition, the connector according to the present invention requires less space for installation, and furthermore, it can be easily fixed to the device itself, so it has the practical effect of being extremely easy to handle.

Although the present invention has been described above with reference to a preferred embodiment, the present invention is not limited to this embodiment. For example, a square hole may be formed inside the fluid passage of the first tightening member. Of course, various improvements and changes in design are possible without departing from the gist of the present invention, such as the possibility of engaging a wrench with the tightening member to lock the tightening member to an object.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram showing the coupling relationship between a multiple tube and a device according to the prior art, and FIG. 2 is a partially omitted vertical cross-sectional view showing the coupling relationship between a multiple tube connector, a multiple tube, and a device according to the present invention. , FIG. 3 is an exploded perspective explanatory view of the multiple tube, connector, and device shown in FIG. 2, FIG. 4 is a partial cross-sectional perspective view of the multiple tube incorporated in FIGS. 2 and 3, and FIG. FIG. 6 is a partially omitted vertical sectional view showing another embodiment of the multiple pipe connector according to the present invention, FIG. 6 is a partially sectional perspective view of the multiple pipe connected to the multiple pipe connector shown in FIG. 5, and FIG. FIG. 8 is a partially omitted vertical cross-sectional view showing still another embodiment of the multiple pipe connector according to the present invention, and FIG. 8 is a partially sectional perspective view of the multiple pipe connected to the multiple pipe connector shown in FIG. 7. 30...Connector, 32...Body, 34...
...Fluid passage, 36... Hole, 38a, 38b...
...Annular groove, 40a, 40b...Seal ring, 4
2... Hole portion, 43... Step portion, 44... Seal ring, 46... Annular groove, 47... Tightening member, 48
...Pipe line, 49...Fluid passage, 50...Pipe line,
52, 54... Annular protrusion, 56... Second tightening member, 58, 60... Fluid passage, 70... Device,
72, 74...Fluid passage, 76...Multiple pipes, 7
8, 80...Fluid passage, 90...Multiple pipes, 9
2, 94... Tube body, 96, 98, 100... Annular protrusion, 102... Multiple tube, 102a, 102b...
...Pipe body, 104a to 104d...Stay.

Claims (1)

[Claims for Utility Model Registration] (1) The body includes at least one fluid passage and has a first clamping means and a second clamping means defining the fluid passage, the first clamping means enters the body, and the first tightening means and the body have portions protruding from each other to form conduits in which the multiple pipes engage, and a sharp annular protrusion is provided at the multiple pipe engaging portion. the first tightening means and the second tightening means are threaded through the body into a fluid passage formed in the object;
The tightening means communicates the multiple pipe with the fluid passage of the object via a fluid passage provided therein, while the second tightening means communicates the fluid passage of the body with the object through the fluid passage. A multi-pipe connector characterized in that it is configured to communicate with a fluid passage of an object and to attach a body to the object. (2) In the connector described in claim 1 of the utility model registration claim, the fluid passage provided in the second fastening means is a multilayer connector formed by bending so as to communicate with the fluid passage provided in the body. Pipe connector. (3) In the connector described in claim 1 or 2 of the utility model registration claim, the conduit protruding from the first fastening means is a multiple conduit formed concentrically with the conduit protruding from the body. Pipe connector.