JP6463798B2 - Addition of a group of PD (PDOCJ) systems and PD joints and PD parts - Google Patents

Description

The present invention relates to a group of additional items related to a PD (PDOCJ) system, which is a joint system in which a pipe joint made of a synthetic resin such as polyethylene or vinyl chloride and a part that closes an opening of the opening are welded and fixed or PD-bonded.

The present invention also relates to various groups of PD joints that are joined to a tube made of synthetic resin by PD joining.

The present invention also relates to various groups of PD parts that are joined to a synthetic resin joint by PD joining.

The present invention also relates to a PD (PDOCJ) type large-diameter pipe PD wire of the joining type. Furthermore, it is related with the PD wire for small diameter pipes.

In addition, the present invention relates to a group of PD joints and PD parts to which a group of pressure suppression safety devices are attached.

In addition, the present invention relates to a PD line block arrangement structure corresponding to a large diameter.

In addition, the present invention relates to a structure of a spot PD junction having only one PD terminal and one PD line connected to the terminal.

“PD” and “PDOCJ” used for PD joining, PDOCJ method, PD joint, PD parts, PD welding and PD treatment, etc. were named by Present Dream Our Children all-over Japan. (See Non-Patent Document 1.)

PD bonding means that a light beam including a laser beam or an infrared wavelength is passed through a PD wire that becomes a light path, and the light leaks out of the surface of the PD wire to cause a synthetic resin or vinyl chloride around the PD wire. Is a joining method or a joining method in which the welding surface and other joining surfaces are integrated with the material by heating and melting them.

It should be noted that various joints such as sockets connecting pipes made of synthetic resin or vinyl chloride by the PD bonding or PD method, various saddle-like joints attached to the outer peripheral surface or inner peripheral surface of the pipe, and the end of the conduit A PD joint is generally referred to as a cap that is attached to the pipe, a synthetic resin cap having an opening for purging operation and an opening port, an electric fusion plug, and the like.

A part that closes the opening is referred to as a PD part. A part obtained by replacing the group of EF parts in the prior document with the PD method is referred to as a PD part.

The PD line is a line serving as a path for a single light beam connecting a pair of PD terminals. Also, laser beams embedded in a circumferential surface or plane parallel to the welding surface or the bonding surface, and light beams including wavelengths in the infrared region that enter the PD line leak out of the surface of the PD line. This is a line intended to systematically integrate the surrounding synthetic resin or vinyl chloride by heating and melting.

The structure of only one PD terminal and one PD line connected to the terminal is used in the case of spot PD junction.

Note that spot PD bonding is a structure that does not bond a wide area but PD bonds a specific designated small area. Further, in the case of a normal PD bonding, when a part with a partially unstable light amount is generated, it is used to replenish the spot-like light amount of the part to eliminate the shortage of light amount.

Here, the material of the PD line may be quartz glass, BK7, or other optical fiber materials. Further, a colorless and transparent synthetic resin material such as low density polyethylene may be used.

The term PD used in the above PD lines, PD terminals, PD junctions, PD methods, etc. may be replaced with PDOCJ. Note that Non-Patent Document 1 was used as the source of the text.

Note that a pair of PD terminals is a pair of terminals connected by a PD line, and the pair of terminals is connected to an optical connector attached to the tip of an optical fiber extending from the light source. This is a terminal for transmitting a laser beam incident on an optical fiber or a beam including a wavelength in the infrared region to a PD line. Further, the light beam that has entered from one terminal passes through the PD line, and the remaining light beam returns to the light source from the other terminal.

Patent Document 1 of the prior art proposes a PD joint that is PD-bonded by a bonding method using a PD (PDOCJ) method with a pipe diameter of 300 mm or less.

In addition, in Patent Document 1, a socket of a PD joint is taken up as an example. However, there are few descriptions of other various groups of PD joints.

In addition, there are few descriptions of various groups of PD parts that are joined to the opening of the PD joint and close the opening.

And there is no detailed explanation about the PD line for PD joining the PD joint corresponding to the large diameter pipe.

Moreover, the explanation regarding spot PD bonding was insufficient.

Furthermore, a group of PD joints and a group of PD parts that are fitted with a group of pressure suppression safety devices have not been proposed.

Japanese Patent Application No. 2017-092059 Japanese Patent Application No. 2017-009020 Japanese Patent Application No. 2016-247208 Japanese Patent Application No. 2017-078084 JP2015-212572A

Trademark registration No. 4185426

In view of the background art, in the prior art, there is no proposal regarding the structure of the PD line for PD joining corresponding to a large diameter pipe exceeding 300 mm to 600 mm. Then, this invention makes it the first subject to propose the structure of PD wire corresponding to a large diameter.

Also, a second task is to propose a group of PD joints for caps, elbows, and saddles in which PD wires having the structure are provided.

Furthermore, this invention makes the 3rd subject the proposal of a group of PD components which arrange | positions the PD line of the said structure.

Furthermore, this invention makes the 4th subject the proposal of a group of PD couplings which PD-bond the PD component of the said structure to opening part opening | mouth, and obstruct | occlude.

Next, using the fourth feature from the first feature described later as a means, it is deployed in a group of EF joints and a group of EF parts and a top hat-like part described in Patent Document 2, Patent Document 3, and Patent Document 4. Instead of the EF line and the pair of terminals, the PD line and the pair of PD terminals are replaced, and the EF joint is replaced with the PD joint. Similarly, another group of EF joints is replaced with a group of PD joints.

In this way, the EF wire and the terminal are simply replaced with the PD wire and the pair of PD terminals, and the group of EF joints, the group of EF parts, and the top hat parts are respectively replaced with the PD joint, the PD parts, and the top hat parts. The fifth issue is to propose the fifth feature to be changed.

Furthermore, a sixth object is to propose a spot PD junction structure having only one PD terminal and one PD line connected to the terminal.

The present invention uses the first feature of the structure in which the PD wire connecting the pair of terminals and the terminals is arranged on a circumferential surface parallel to the welding surface or on a parallel plane as a means for solving the first problem. . (Invention 1)

Furthermore, the PD line block arrangement structure having the second feature of arranging a plurality of such combinations is used as means for solving the first problem. (Invention 2)

In addition, the PD line enters from one pair of terminals, and when passing through the embedded portion, light rays leaking out of the line from the inside of the PD line are caused by synthetic resin or chloride around the PD line or on the welding surface. Vinyl and the like are melted and the weld surfaces are integrated with a synthetic resin. Further, the light beam remaining without leaking out of the line returns to the light source from the other pair of terminals. The structure of the PD line having the third feature of the light beam path is used as a means for solving the first problem. (Invention 3)

In addition, the PD line enters from one pair of terminals, and when passing through the embedded portion, light rays leaking out of the line from the inside of the PD line are caused by synthetic resin or chloride around the PD line or on the welding surface. Vinyl and the like are melted, and the weld surfaces are systematically integrated with synthetic resin or vinyl chloride. In this way, the PD has the fourth feature as a heat source that melts synthetic resin, vinyl chloride, or the like by direct irradiation of a light beam including a wavelength in the infrared region or a laser beam without being energized like an EF wire of a conventional EF junction. The PD junction structure by the (PDOCJ) method is a solution to the first problem. (Invention 4)

Next, instead of the EF line and the pair of terminals provided in the group of EF joints described in Patent Document 4, the PD line and the pair of PD terminals are arranged by using the fourth feature from the first feature as a means. To replace the EF joint with the PD joint. Similarly, another group of EF joints is replaced with a group of PD joints. Thus, the fifth feature of simply replacing the EF line and the terminal with the PD line and the pair of PD terminals is a solution for the second problem, the third problem, the fourth problem, and the fifth problem. (Invention 5)

Further, the sixth feature of the spot PD junction structure having only one single PD terminal and one PD line connected to the terminal is a solution to the sixth problem. (Invention 6)

According to the present invention, the structure of a PD line for PD joining corresponding to a large diameter pipe exceeding 300 mm to 600 mm can be proposed, and the first problem can be solved.

Since the group of PD joints with caps, elbows, and saddles for deploying the PD wire having the structure was proposed, the second problem could be solved.

According to the present invention, it is possible to propose a group of PD parts in which PD lines having the structure are arranged, and the third problem can be solved.

Furthermore, the present invention can propose a group of PD joints in which PD parts having the structure are PD-bonded to the opening and closed, and the fourth problem can be solved.

As described above, the EF wire and the terminal are simply replaced with the PD wire and the pair of PD terminals, and the group of EF joints, the group of EF parts, and the top hat-like parts are respectively replaced with the PD joint, the PD parts, and the top hat-like parts. The fifth problem was solved by the proposal of the fifth feature to be changed to the part.

Furthermore, the sixth problem has been solved by the invention of the sixth feature of the spot PD junction structure having only one PD terminal and one PD line connected to the terminal.

Overall perspective view of large-diameter socket PD joint Sectional view of FIG. AA-AA cross section Pipe insertion positioning plate Installation of conduit insertion positioning plate and sectional view of conduit insertion Conventional EF joint socket Conventional EF joint cap Conventional EF joint elbow Conventional EF joint service team Conventional EF joint Bypass saddle PD component with single terminal and PD line CC-CC sectional view of Fig. 11 Cross sectional view of spot PD bonding

In the present invention, unlike a conventional EF junction for energizing an EF line, a light beam having a wavelength in a laser beam or an infrared region is passed through a PD line serving as a light path, and the light beam leaks out of the surface of the PD line. The socket body made of synthetic resin or vinyl chloride and the outer peripheral surface of the tube are heated and melted, and the joining surface is systematically integrated with the synthetic resin.

Since the present invention uses PD joining, which is a joining method in which the joining surfaces are systematically integrated with synthetic resin by melting with light rays, joining work between tubes in the buried hole, and various PD joints and PD parts It is also a form in which electricity is not used at all for joining work of PD joints and PD parts.

The present invention has a feature that it is possible to completely prevent the generation of sparks that are the ignition source of the three elements of combustion, and further, the ignition source of the three elements of combustion is removed from the work site in the buried hole and is safe. It is in the form of a PD bonding method having the first feature that can perform various bonding operations.

The PD joining method of the joining means which is the first feature is the form of the first invention.

In addition, by inventing a joining method that does not generate electrical sparks, the generation of sparks, which are the ignition source of the three elements of combustion, is completely sealed, and the ignition source of the three elements of combustion is removed from the construction site and is safe. It is applied to a group of EF joints and a group of EF parts to be joined by the joining method for performing work, and has become a new form of construction material as a group of PD joints and a group of PD parts.

Examples of the present invention will be described. FIG. 1 is an overall perspective view of a large-diameter socket PD joint. FIG. 2 illustrates a cross-sectional view of FIG. FIG. 3 illustrates an AA-AA cross-sectional view. FIG. 4 illustrates a conduit insertion positioning plate. FIG. 5 illustrates the installation of the conduit insertion positioning plate and the cross-sectional view of the conduit insertion.

FIG. 1 is an overall perspective view of a large-diameter socket PD joint for connecting a large-diameter pipe made of synthetic resin or vinyl chloride to extend the pipe line.

The large-diameter socket PD joint illustrated in FIG. 1 includes one PD line, three pairs of PD terminals, and seven indicators. PD line block arrangement 1 of PD 1 and PD line block arrangement 2 of similar PD 2 and PD line block arrangement 3 of similar PD 3 and PD line block arrangement 4 of similar PD 4, 9 conduit insertion positioning plate mounting grooves, 9 It is constructed by -1 conduit insertion positioning plate and 10 large-diameter socket PD joint body.

Next, one PD line is parallel to the inner peripheral surface of the large-diameter socket PD joint body 10 in order to join the outer peripheral surfaces of the conduits 20 and 21 to be inserted and the inner peripheral surface of the large-diameter socket PD joint body 10. It is embedded and deployed on the circumferential surface (see FIGS. 1 and 2 and FIGS. 3 and 5).

Further, one PD line is a passage path of a light beam including a laser beam and a wavelength in the infrared region in the PD line serving as a light beam path. While the light beam passes through the PD wire, the synthetic resin or vinyl chloride around the PD wire is heated and melted by the light beam leaking out from the surface of the wire, and the welding surface and other joint surfaces are made of the synthetic resin. It is a PD wire deployed for the purpose of integration with PVC or vinyl chloride.

Both ends of the PD line are connected to a pair of three PD terminals (see FIGS. 2 and 3). The PD terminal is connected from the fiber to the PD terminal by connecting a connector (not shown) to which the light beam transmitted from the light source (not shown) by the optical fiber is attached to the tip of the optical fiber, and further to the PD terminal. The light beam is transmitted to the PD line connected to the.

The material of the PD line may be a material used for quartz glass, BK7, or other optical fibers. Further, a colorless and transparent synthetic resin material such as low density polyethylene may be used.

Next, 7 is an indicator, which is provided on the outer surface of the 10 large-diameter socket PD joint body on the PD line so that it can be visually checked whether melting and welding by the PD line have been normally performed. (See FIGS. 1 and 3). The indicator 7 is the same as the indicator provided in a general EF joint, and there is no problem. Also, even better and cheaper indicators will not cause any problems.

Next, the conduit insertion positioning plate 9-1 has the shape shown in the front view and the side view shown in FIG. In addition, there is no hindrance even if the shape is other forms, and it is attached to 9 conduit insertion positioning plate mounting grooves provided integrally with the 10 large-diameter socket PD joint body, and if possible, the positioning of the inserted conduit can be performed. good.

Next, with reference to FIG. 5, 20 synthetic resin or vinyl chloride right-side conduits inserted into the 10 large-diameter socket PD joint main body from the right side have a conduit tip of 9-1 as shown in the figure. The insertion position of the conduit 20 is determined by hitting the conduit insertion positioning plate. Similarly, 21 synthetic resin or vinyl chloride left-side conduits inserted from the left side abut and the position of the conduit 21 is determined.

The conduits 20 and 21 inserted in this way are not limited to a cut tube or a straight straight tube, but may be a bent tube N described in Japanese Patent Application Laid-Open No. 2015-212572. In addition, after passing through the buried object, a fixed-length conduit or cutting tube may be connected to the bent pipe N shown in FIG. 6 of this document using 10 large-diameter socket PD joint bodies.

Furthermore, a part of the bent pipe N shown in FIG. 16 of this document is cut out, and when the buried hole and the axis of the pipe are displaced by only 3 degrees or 5 degrees, the connection is made with the 10 large-diameter socket PD joint body. There are many scenes that are often needed in the field. In addition, pipes with a large diameter of 200 mm or more are not easily bent and it is very difficult to apply an external force to bend the shaft slightly to match the buried hole, as with a pipe with a small diameter. Therefore. The need for the bent pipe N described in this document as well as similar documents is notable in that it is used in combination with the large-diameter socket PD joint of the present invention, and the workability on the site is remarkably improved.

Next, with reference to FIGS. 1, 2, 3, and 5, a PD line block arrangement structure corresponding to a large-diameter PD line block arrangement structure is shown in FIG. It consists of one block consisting of PD line and 7 indicators.

Further, in FIG. 5, 10 large-diameter sockets are inserted from the right side of the PD joint main body until it hits the 9-1 conduit insertion positioning plate, 20 outer peripheral surfaces of the right-side conduit made of synthetic resin or vinyl chloride, and the 10 large-diameter sockets. The PD line for PD-bonding the inner peripheral surface of the PD joint main body has two arrangement structures, PD line block arrangement 1 of PD1 and PD line block arrangement 2 of PD2.

Further, in FIG. 5, 10 large-diameter sockets are inserted from the left side of the PD joint main body until they hit the 9-1 conduit insertion positioning plate, 21 outer peripheral surfaces of the plastic or vinyl chloride right-side conduit, and the 10 large-diameter sockets. The PD line for PD-bonding the inner peripheral surfaces of the PD joint main body has two arrangement structures, PD line block arrangement 3 of PD3 and PD line block arrangement 4 of PD4.

Further, referring to FIG. 2 and FIG. 5, HT described at the lower side of the figure is a hot part and is a part that becomes a main melting part. Moreover, CD is a cold part and is a part which is not related to main melting. From the left side of the figure, the CD at the left socket end is necessary so that the synthetic resin, vinyl chloride, or the like of the melted material of the HT portion in the adjacent PD 4 does not flow out of the socket. The CD Note 1 between PD4 and PD3 can be omitted, but in order to increase the pressure when the HT part of PD4 melts, the HT part of PD4 is confined with the CD and CD Note 1 at the left end. Can reliably maintain the molten pressure.

Next, there is an HT portion of PD3, and the CD on the left side of 9 conduit insertion positioning plate mounting groove is made of 21 synthetic resin or vinyl chloride made of synthetic resin or vinyl chloride of the molten material of HT portion of PD3. It is necessary to prevent the flow from the end of the left conduit toward the conduit insertion positioning plate mounting groove 9 and to prevent the pressure drop of the molten synthetic resin or vinyl chloride in the HT portion of the PD3.

Next, the same applies to the right side of the 9 conduit insertion positioning plate mounting groove.

The above describes the overall structure of the large-diameter socket PD joint. Further, the small-diameter socket PD joint has a structure in which PD2 and PD3 are removed.

Moreover, the socket which is the conventional EF joint quoted in Japanese Patent Application No. 2017-092059 of patent document 1 is illustrated. In this figure, the conduit insertion positioning plate mounting groove and the conduit insertion positioning plate are omitted. FIG. 7 shows a cap which is a conventional EF joint. FIG. 8 shows an elbow that is a conventional EF joint. 9 shows a service chi which is a conventional EF joint. FIG. 10 shows a bypass saddle which is a conventional EF joint.

In the group of EF joints, which are typical representative EF joints, the EF wire for EF joining is changed to the PD wire of the present invention. Furthermore, the EF terminal for EF joining is changed to the PD terminal of the present invention. The indicator may be the same for an EF joint or a PD joint. By simply making the above changes, the conventional EF joint is reborn as the PD joint of the present invention.

Further, the EF component in Japanese Patent Application No. 2017-009020 of Patent Document 2 is reborn as a PD component when similar changes are made. Further, the top hat-shaped protective EF component in Japanese Patent Application No. 2016-247208 of Patent Document 3 is reborn as a top-hat-shaped protective PD component when the same changes are made. Further, a group of EF joints and a group of EF parts in Japanese Patent Application No. 2017-078084 of Patent Document 4 are also reborn as a group of PD joints and a group of PD parts when similar changes are made.

Next, FIG. 11 is a front view of a PD component having a single terminal and a PD line with respect to a spot PD junction structure having a single PD terminal and a single PD line connected to the terminal. It is a side view. FIG. 12 illustrates a CC-CC cross-sectional view of FIG. FIG. 13 is an explanatory sectional view of spot PD bonding.

In FIG. 11, 30 is a PD component having a single terminal and a PD line. 31 is a PD line. Reference numeral 33 denotes a PD terminal. 37 is an indicator. Reference numeral 40 denotes a joint surface. Reference numeral 48 denotes a spot melting portion.

11, 12, and 13, a PD component having 30 single terminals and PD lines is composed of one PD line 31 and single PD terminals 33 and 37 indicators. Composed. The 30 PD component bodies are made of synthetic resin or vinyl chloride.

The PD line 31 is a PD line according to the present invention, and is arranged on a plane parallel to the plane of the welding surface or the joint surface opposite to the terminal as shown in the sectional view of FIG. Embedded in the joint surface side of a PD component having one terminal and a PD line. The materials are the same as described above.

Next, 33 is a PD terminal, which is a single terminal. The terminal is connected to one end of 31 PD lines. In addition, a light source is transmitted from the light source to the PD terminal and further to the PD line connected to the PD terminal by connecting a provided connector to the tip of the optical fiber as a transmission path from the light source to the 33 PD terminal. The indicator 37 is located directly above the open end of the PD line and is provided on the outer surface side shown in the drawing so that the molten state can be visually checked. Moreover, it is the same as the indicator used for the conventional EF joint, and there is no trouble.

Next, referring to FIG. 13, reference numeral 40 denotes a joint surface on which 30 PD parts are spot PD joined. Reference numeral 48 denotes a spot melting portion. A light ray entering from the PD terminal 33 passes through the PD line 31 and more light rays leak out of the open end of the PD line. It is the open end that emits light most in the entire length of the PD line. Utilizing this feature, the open end portion is spot-melted with synthetic resin, vinyl chloride, or the like, and systematically integrated and joined. In this manner, the spot color is referred to as a spot PD junction with the spot color as a name.

Since it is spot-like, it is not used for the part where the bonding strength is discussed, but for example, it is used when attaching a plate such as a nameplate or a cautionary note. Furthermore, as another utilization method, in the PD bonding method having a pair of terminals of the present invention, when the light quantity of the light beam is partially insufficient, a PD different from the normal PD line is used in the vicinity of the light quantity shortage. An open end of the wire is arranged to increase the amount of light, and there is an advantage that it can be used as an auxiliary method for performing stable PD bonding.

The spot bonding has a possibility that it can be used in various places in the industry except for the attachment of the nameplate. In addition, since the present invention can perform welding and fixing without energizing electricity, it is most suitable for a site where the ignition source is particularly dangerous, for example, a work site of hydrogen conduit piping.

1 PD line 3 PD terminal 7 Indicator 9 Conduit insertion positioning plate mounting groove 9-1 Conduit insertion positioning plate 10 Large-diameter socket PD joint body PD1 PD line block arrangement 1
PD2 PD line block arrangement 2
PD3 PD line block arrangement 3
PD4 PD line block arrangement 4
HT hot part (main melting part)
CD cold part (part not related to main melting)
20 Synthetic resin or vinyl chloride right side conduit 21 Synthetic resin or vinyl chloride left side conduit 30 PD component 31 having a single terminal and a PD line PD line 33 PD terminal
37 Indicator 40 Joining surface 48 Spot melting part

Claims (9)

By leaking the light beam from the surface of the PD line to the outside of the line, the welded surface of the pipe and various joints around the PD line is heated and melted, and the welded surface of the pipe and the various joints is structured. A group of PD joints in which at least one pair of PD terminals of a connection part for transmitting a light beam transmitted by an optical fiber to the PD line is provided at both ends of the PD or PDOCJ to be integrated with each other and the PD line for bonding. And a group of PD parts. The PD wire connecting the pair of PD terminals is disposed on the inner peripheral surface and the outer peripheral surface parallel to the welding surface or the bonding surface, or embedded in the welding surface or a plane parallel to the bonding surface. A PD line arrangement structure having a PD line arrangement structure, and a group of PD joints and a group of PD parts according to claim 1. In the pair of terminals, the laser beam transmitted from one terminal to the PD line and the light beam including the wavelength in the infrared region are obtained by returning the remaining beam other than the beam used for melting to the light source side from the other terminal. 3. A group of PD joints and a group of PD parts according to claim 1 having a path. The arrangement shape of the PD line has a feature of being arranged on the inner peripheral surface or the outer peripheral surface or on a plane, and the PD line has a spiral, wave-shaped or lightning-type arrangement example, and a spiral or circular arrangement example. Placement shape. The group of PD joints and PD parts according to any one of claims 1 to 3, further comprising an arrangement shape of a PD line. A group of PD joint and PD component according to any of the請Motomeko 1-4 with PD line block arrangement of a plurality of blocks deploying a combination of PD line connecting a pair of terminals and the terminal. The material of the PD wire is a material of an optical fiber such as quartz glass or BK7, and a material of the PD wire which is a material such as colorless and transparent low-density polyethylene . Furthermore, a group of PD joints and PD parts in any one of Claims 1-5 which arrange | position the PD wire of the said material. A group of PD joints and PD parts according to any one of claims 1 to 6, which are equipped with a group of pressure suppression safety devices. The light beam for reinforcing the unstable PD joints in a group of PD joints and a group of PD parts is arranged with a single PD terminal and an open end of a single PD line connected to the terminal. A structure that makes the PD junction stable by increasing the usage. Furthermore, the group of PD joints and PD parts according to any one of claims 1 to 7 having the auxiliary usage . The group of PD joints and the group of PD parts according to any one of claims 1 to 8, which have a structure of PD junction having only one PD terminal and one PD line connected to the terminal .