CN113300293A - MPP cable pipe convenient to butt fusion installation - Google Patents
MPP cable pipe convenient to butt fusion installation Download PDFInfo
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- CN113300293A CN113300293A CN202110526324.9A CN202110526324A CN113300293A CN 113300293 A CN113300293 A CN 113300293A CN 202110526324 A CN202110526324 A CN 202110526324A CN 113300293 A CN113300293 A CN 113300293A
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- butt joint
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
- H02G3/0481—Tubings, i.e. having a closed section with a circular cross-section
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/04—Installations of electric cables or lines in or on the ground or water in surface ducts; Ducts or covers therefor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
Abstract
The invention discloses an MPP cable pipe convenient for welding installation, belonging to the technical field of MPP pipes, wherein a left butt joint part and a right butt joint part are respectively arranged at butt joint ends of a pair of pipe bodies for the embedding connection of the two pipe bodies, the butt joint accuracy is high, a plurality of placing cavities and welding cavities which are in one-to-one correspondence are arranged on the peripheral walls of an inner connecting pipe and a welding pipe, a hot melting extending body is arranged in each placing cavity, the butt joint part of the pipe bodies is heated by an external heating device, the hot melting extending body in each placing cavity generates extending and stretching actions after being heated, the hot melting extending body extends into each welding cavity, in the extending movement process of the hot melting extending body, the hot melting filler which is hot-melted at the inner side of a hollow elastic storage cone is extruded towards the placing cavities and the outer side of the hollow elastic storage cone, so that the hot melting filler which is coated at the inner side and the outer side of the hot melting extending body and the hollow elastic storage cone, and after solidification molding, and finishing layer-by-layer welding among the inner connecting pipe, the welding pipe and the outer connecting pipe.
Description
Technical Field
The invention relates to the technical field of MPP pipes, in particular to an MPP cable pipe convenient to weld and install.
Background
The MPP cable pipe is also called as an MPP power pipe and an MPP power cable protection pipe and is made of modified polypropylene. With the continuous development of society and economy, the building scale is increasing day by day, especially town infrastructure construction, environmental protection facility construction and housing construction increase faster, and the use amount of buried pipes used for municipal communication optical cables, low-voltage cables, cable television networks, multimedia transmission network lines and the like is increasing. Therefore, the conventional hollow cement pipe is replaced by the MPP cable pipe in the prior art.
MPP cable pipe utilizes a plurality of bodys to carry out the piece joint and connects, adopts welding machine hot melt welding usually between body and the body, and two pipe axis need aim at during hot melt butt joint, and the terminal surface cutting is perpendicular level and smooth simultaneously, and the butt fusion precision is comparatively difficult to control, and two terminal surface welding departments are easy to split simultaneously, lead to pipeline quality problem easily.
Therefore, the MPP cable pipe convenient for welding installation is provided to effectively solve the problems in the prior art.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide an MPP cable pipe convenient for welding installation, wherein a left butt joint part and a right butt joint part are respectively arranged at the butt joint ends of a pair of pipe bodies for the embedding connection of the two pipe bodies, the butt joint accuracy is high, a plurality of placing cavities and welding cavities which correspond one to one are arranged on the peripheral walls of an inner connecting pipe and the welding pipe, a hot melting extending body is arranged in each placing cavity, the butt joint part of the pipe bodies is heated by an external heating device, the hot melting extending body in each placing cavity generates extending and stretching actions after being heated, the hot melting extending body extends into the welding cavities, in the extending movement process of the hot melting extending body, the welding filler which is hot-melted on the inner side of a hollow elastic storage cone is extruded towards the placing cavities and the outer side of the hollow elastic storage cone, so that the hot melting filler is coated on the inner side and the outer side of the hot melting extending body and the hollow elastic storage cone, and after curing and forming, completing layer-by-layer welding among the inner connecting pipe, the welding pipe and the outer connecting pipe.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
An MPP cable pipe convenient for butt fusion installation comprises a pair of pipe bodies to be installed in a butt fusion mode, wherein a left butt joint portion and a right butt joint portion are arranged at butt joint ends of the pair of pipe bodies respectively, the left butt joint portion comprises an inner connecting pipe and an outer connecting pipe which are sleeved on inner and outer walls of the pipe bodies, the pipe bodies are located on the inner side of the outer connecting pipe, an annular butt joint cavity is formed between the pipe bodies and the outer connecting pipe, the right butt joint portion comprises a welding pipe connected onto another pipe body, the welding pipe is embedded in the annular butt joint cavity, a plurality of placing cavities are formed in the peripheral side walls of the inner connecting pipe and the outer connecting pipe, a hot melting extending body is embedded in each placing cavity, a plurality of butt fusion cavities corresponding to the positions of the placing cavities are formed in the peripheral side walls of the welding pipe, a hollow elastic storage cone is embedded in each welding cavity and installed in the corresponding welding cavity, and a connecting ring which is movably connected with the inner wall of the top end of the welding cavity is sleeved on the outer side of the hollow elastic storage cone, the hollow elastic storage cone is filled with welding filler, and the welding filler is solid in an initial state.
Further, it expands and prolongs the chamber to have seted up a plurality of arcs on the interior end wall of outer linking pipe, the position one-to-one place chamber, butt fusion chamber and arc and expand and prolong the chamber and communicate the setting each other, place chamber, butt fusion chamber and arc and expand and prolong the chamber and form a cavity ellipse shape structure, all the cladding has the sealed pad of avoiding butt fusion chamber to set up on the interior outer wall of outer linking pipe, places the hot melt of intracavity and expands and prolong the body and inlay after being heated and expand and locate butt fusion chamber and arc and expand and prolong the intracavity, realizes the butt fusion between linking pipe, outer linking pipe and the fusion pipe.
Furthermore, the hot-melting extension body comprises a magnetic sheet layer fixedly connected to the top end wall of the placement cavity, the bottom end of the magnetic sheet layer is connected with an elastic coating bag layer, an embedded ball is embedded in the elastic coating bag layer, the upper end of the embedded ball is coated with a hot-melting magnetic isolating layer connected with the inner wall of the elastic coating bag layer, a second ferromagnetic sheet is filled in the embedded ball, an engaging rod is sleeved in the embedded ball, the top end of the engaging rod penetrates through the embedded ball and is connected to the magnetic sheet layer, the bottom end of the elastic coating bag layer is flush with the outer end of the placement cavity in an initial state, the welding pipe is easily embedded in the annular butt joint cavity, and when welding is carried out, the magnetic isolating function of the magnetic isolating layer is solved by heating of the hot-melting magnetic isolating layer, so that the magnetic sheet layer has outward thrust to the embedded ball, and the elastic coating bag layer is pushed into the welding cavity, the top end of the connecting rod is remained on the magnetic sheet layer, so that the extended embedded welding is realized.
Furthermore, the magnetic sheet layer comprises an elastic sheet connected to the placing cavity, a first ferromagnetic sheet is arranged at the inner end of the elastic sheet, and the first ferromagnetic sheet and the second ferromagnetic sheet are arranged in a magnetic repulsion mode.
Furthermore, the hot-melt magnetic isolation layer comprises a hot-melt resin layer coated on the embedded ball, a layer of densely arranged magnetic isolation particles is attached to the inside of the hot-melt resin layer, the hot-melt magnetic isolation layer plays a role in isolating magnetism between the first ferromagnetic sheet and the second ferromagnetic sheet, when an external heating device is used for heating the welding position of the pipeline, the hot-melt resin layer is heated and melted firstly, so that one layer of magnetic isolation particles is separated from the embedded ball, the embedded ball is pushed towards one end far away from the end of the embedded ball by the magnetic sheet layer by means of the repulsion action of the first ferromagnetic sheet on the second ferromagnetic sheet, meanwhile, the welding filler is heated and melted, the embedded ball and the elastic coating bag layer move towards one side of the welding cavity and are embedded in the welding filler for melting, the elastic coating bag layer has elasticity, and is separated from the magnetic sheet layer and embedded in the welding cavity and the arc-shaped extension cavity along with the elastic coating bag layer after continuously moving away from the magnetic sheet layer along with the embedded ball, after curing, the inner layer and the outer layer of the two can be fixedly connected.
Furthermore, the connecting rod is fixedly connected with the elastic sheet in a locking mode, the elastic coating bag layer is connected with the elastic sheet through the bonding layer, after the embedded ball moves away from one side of the first ferromagnetic sheet, the elastic coating bag layer is separated from the elastic sheet and moves along with the embedded ball, the connecting rod pulls the elastic sheet to expand outwards the placing cavity, the first ferromagnetic sheet has high-performance elasticity, and the connecting rod is connected between the elastic sheet and the elastic extrusion layer to realize that the hot-melting expansion body is connected between the placing cavity and the welding cavity.
Further, place intracavity wall on be equipped with attached in the hot melt expand the body extend the elasticity extrusion layer on the wall all around, elasticity extrusion layer has high performance elasticity equally, play the positioning action to embedded ball under initial condition, when embedded ball breaks away from the outside extrusion butt fusion of flexure strip and packs including, elasticity extrusion layer is not receiving the same elasticity of embedded ball after, aggravate the inside extrusion deformation degree, the flexure strip after the side is to deformation plays the positioning action, on the other hand is favorable to the butt fusion packing extrusion formula contact of extruding to putting chamber one side, improve the adhesion between butt fusion packing and the elasticity extrusion layer, improve the butt fusion effect.
Furthermore, the hollow elastic material storage cone is of a horn-shaped structure with a wide upper part and a wide lower part and a narrow middle part, a plurality of material seepage holes are formed in the inner wall of the hollow elastic material storage cone, when the elastic coating bag layer extrudes and moves towards the welding cavity along with the embedded ball, the elastic hollow elastic material storage cone can realize that the embedded ball expands and extends towards the arc-shaped cavity through the hollow elastic material storage cone, and plays a subsequent positioning role for the embedded ball, meanwhile, in the extrusion movement process, part of welding filler is guided into the placing cavity through a gap between the embedded ball and the welding cavity, the other part of welding filler overflows into the welding cavity space outside the hollow elastic material storage cone through the material seepage holes, and can push the connecting ring outwards under the condition that the welding filler is continuously led out, so that the connecting ring is pushed to the port of the placing cavity, and the elastic extrusion layer in the placing cavity plays a limiting role for the connecting ring, at the moment, the connecting ring is positioned at the butt joint of the welding cavity and the placing cavity, welding fillers are coated on the inner side and the outer side of the connecting ring, and the mechanical connection between the inner connecting pipe and the welding pipe is further improved.
Furthermore, the elastic sheet, the elastic extrusion layer and the connecting ring are all made of metal elastic materials, fiber spines are arranged on the end walls of the elastic sheet, the elastic extrusion layer and the connecting ring, the fiber spines are made of metal materials, and therefore the connecting effect between the welding filler and each connector is effectively improved.
Furthermore, a plurality of material sucking holes are formed in the end face of the embedded ball, after the embedded ball is pushed to the arc-shaped expanding cavity, the welding pipe overflowing to the arc-shaped expanding cavity can well adsorb the outer end face of the embedded ball, and the connecting effect between the welding filler and the embedded ball is easily improved.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme is that a left butt joint part and a right butt joint part are respectively arranged at butt joint ends of a pair of pipe bodies and are used for embedding and connecting the two pipe bodies, the butt joint accuracy is high, a plurality of placing cavities and welding cavities which correspond to each other one by one are arranged on the peripheral walls of an inner butt joint pipe and a welding pipe, a hot melting extending body is arranged in each placing cavity, the butt joint positions of the pipe bodies are heated by an external heating device, the hot melting extending body in each placing cavity generates extending and extending actions after being heated, the hot melting extending body extends into each welding cavity, in the process of extending of the hot melting extending body, the hot melting filler after hot melting on the inner side of a hollow elastic storage cone is extruded towards the placing cavities and the outer side of the hollow elastic storage cone, so that the hot melting filler after storage is coated on the inner side and the outer side of the hot melting extending body and the hollow elastic storage cone, and after solidification, layer-by-layer welding, the cracking of the welding position is not easy to cause.
(2) Set up a plurality of arcs on the interior end wall of outer linking pipe and expand and prolong the chamber, the chamber is expanded to place of position one-to-one, butt fusion chamber and arc expand and prolong the chamber and communicate the setting each other, place the chamber, butt fusion chamber and arc expand and prolong the chamber and form a cavity ellipse shape structure, all the cladding has the sealed pad of avoiding butt fusion chamber to set up on the interior outer wall of outer linking pipe, the hot melt of placing the intracavity expands and prolongs the body and inlay after being heated and extend and locate butt fusion chamber and arc and expand and prolong the intracavity, linking pipe in the realization, butt fusion between outer linking pipe and the butt fusion pipe.
(3) The hot melting extension body comprises a magnetic sheet layer fixedly connected to the top end wall of the placement cavity, the bottom end of the magnetic sheet layer is connected with an elastic coating bag layer, an embedded ball is embedded in the elastic coating bag layer, the upper end of the embedded ball is coated with a hot melting magnetic isolating layer connected with the inner wall of the elastic coating bag layer, a second ferromagnetic sheet is filled in the embedded ball, an attachment rod is sleeved in the embedded ball, the top end of the attachment rod penetrates through the embedded ball and is connected to the magnetic sheet layer, in the initial state, the bottom end of the elastic coating bag layer is flush with the outer end of the placement cavity, a welding pipe is easily embedded in the annular butt joint cavity, when welding is carried out, the magnetic isolating effect is solved by heating the hot melting magnetic isolating layer, so that the magnetic sheet layer has outward thrust on the embedded ball, the embedded ball and the elastic coating bag layer are pushed into the welding cavity, and the top end of the attachment rod is remained on the magnetic sheet layer, realizing the extended embedded welding.
(4) The magnetic sheet layer comprises an elastic sheet connected to the placing cavity, a first ferromagnetic sheet is arranged at the inner end of the elastic sheet, the first ferromagnetic sheet and a second ferromagnetic sheet are arranged in a magnetic repulsion mode, the hot melting magnetic isolating layer comprises a hot melting resin layer coated on the embedded ball, a layer of densely arranged magnetic isolating particles is attached to the inside of the hot melting resin layer, the hot melting magnetic isolating layer has an isolation effect on the magnetism between the first ferromagnetic sheet and the second ferromagnetic sheet, when an external heating device is used for heating the welding position of the pipeline, the hot melting resin layer is heated and melted firstly, so that the layer of magnetic isolating particles is separated from the embedded ball, the embedded ball is pushed towards one end far away from the embedded ball by the magnetic sheet layer depending on the repulsion effect of the first ferromagnetic sheet on the second ferromagnetic sheet, meanwhile, the magnetic sheet is heated and melted, the magnetic sheet ball and the elastic coating bag layer move towards one side of the welding cavity and are embedded in the welding filler for melting, the elastic coating bag layer has elasticity, and can be separated from the magnetic sheet layer and embedded in the welding cavity and the arc-shaped extension cavity along with the elastic coating bag layer after continuously moving away from the magnetic sheet layer along with the embedded ball, and after curing, the fixed connection of the inner layer and the outer layer of the welding cavity and the arc-shaped extension cavity can be realized.
(5) The connecting rod is fixedly connected with the elastic sheet in a locking mode, the elastic coating bag layer is connected with the elastic sheet through the bonding layer, when the embedded ball moves away from one side of the first ferromagnetic sheet, the elastic coating bag layer is separated from the elastic sheet and moves along with the embedded ball, the connecting rod pulls the elastic sheet to expand outwards of the placing cavity, the first ferromagnetic sheet has high-performance elasticity, and the connecting rod is connected between the elastic sheet and the elastic extrusion layer to achieve the effect that the hot-melting expansion body is connected between the placing cavity and the welding cavity.
(6) Place to be equipped with on the intracavity wall and attach in the hot melt expand the body elasticity extrusion layer on the wall all around, elasticity extrusion layer has high performance elasticity equally, play the positioning action to embedded ball under initial condition, when embedded ball breaks away from the outside extrusion butt fusion of flexure strip and packs including, elasticity extrusion layer is not receiving the same elasticity of embedded ball after, the aggravation is to inside extrusion deformation degree, the side plays the positioning action to the flexure strip after the deformation, on the other hand is favorable to the butt fusion that extrudees to putting chamber one side and packs the extrusion formula contact, improve the adhesion between butt fusion packing and the elasticity extrusion layer, improve the butt fusion effect.
(7) The hollow elastic material storage cone is of a horn-shaped structure with a wide upper part and a narrow middle part, a plurality of material seepage holes are formed in the inner wall of the hollow elastic material storage cone, when the elastic coating bag layer extrudes and moves towards the welding cavity along with the embedded ball, the elastic hollow elastic material storage cone can realize that the embedded ball expands towards the arc-shaped cavity through the hollow elastic material storage cone and plays a subsequent positioning role for the embedded ball, meanwhile, in the extrusion movement process, part of welding filler is guided into the placing cavity through a gap between the embedded ball and the welding cavity, the other part of welding filler overflows into the welding cavity space outside the hollow elastic material storage cone through the material seepage holes, the connecting ring can be pushed outwards under the condition that the welding filler is continuously led out, so that the connecting ring is pushed to the port part of the placing cavity, the elastic extrusion layer positioned in the placing cavity plays a limiting role for the connecting ring, and at the moment, the connecting ring is positioned at the butt joint of the welding cavity and the placing cavity, the inner side and the outer side of the connecting ring are coated with welding filler, so that the mechanical connection between the inner connecting pipe and the welding pipe is further improved.
(8) The elastic sheet, the elastic extrusion layer and the connecting ring are all made of metal elastic materials, fiber spines are arranged on the end walls of the elastic sheet, the elastic extrusion layer and the connecting ring, the fiber spines are made of metal materials, and the connecting effect between the welding filler and each connector is effectively improved.
(9) Set up a plurality of material holes of inhaling on the terminal surface of embedded ball, pushing away embedded ball to the arc and expanding and prolong the intracavity back, the overflow expands to the arc and prolongs the fusion pipe of intracavity and can adsorb to the outer terminal surface of embedded ball well, easily improves the welded packing and the embedded ball between the effect of being connected.
Drawings
FIG. 1 is a first schematic view of two tubes of the present invention before butt-jointing;
FIG. 2 is a second schematic view of the present invention before two tubes are butted together;
FIG. 3 is a schematic view of the junction of the left and right docking portions of the present invention;
FIG. 4 is a schematic illustration of the inner and outer adapter tubes of the present invention shown disassembled;
FIG. 5 is a split view of the junction of the fusion pipe and the hollow elastic material storage cone of the invention;
FIG. 6 is a first internal view of two tubes of the present invention after butt-joint;
FIG. 7 is a schematic view of the structure at A in FIG. 6;
FIG. 8 is a second internal view of two tubes of the present invention after butt-jointing;
fig. 9 is a schematic view of the structure at B in fig. 8.
The reference numbers in the figures illustrate:
the device comprises a pipe body 1, an inner connecting pipe 2, a placing cavity 201, an outer connecting pipe 3, an arc-shaped expanding cavity 301, a fusion welding pipe 4, a fusion welding cavity 401, an elastic coating bag layer 5, a hollow elastic storage cone 6, an attached magnetic sheet layer 7, an elastic sheet 701, a first ferromagnetic sheet 702, an elastic extrusion layer 8, an embedded ball 9, a hot-melting magnetic isolation layer 10, a second ferromagnetic sheet 11, a connecting rod 12, a connecting ring 13 and a fusion welding filler 14.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-3 and 6-7, an MPP cable conduit convenient for fusion splicing installation comprises a conduit body 1 to be fusion spliced and installed, wherein a left butt joint part and a right butt joint part are respectively arranged at butt joint ends of a pair of conduit bodies 1, and the connection installation between the pair of conduit bodies 1 is realized by utilizing the fusion splicing of the butt joint parts, wherein the left butt joint part comprises an inner connection pipe 2 and an outer connection pipe 3 which are sleeved on the inner wall and the outer wall of the conduit body 1, the conduit body 1 is positioned at the inner side of the outer connection pipe 3, an annular butt joint cavity is formed between the conduit body 1 and the outer connection pipe 3, the right butt joint part comprises a fusion splicing pipe 4 connected to the other conduit body 1, the fusion splicing pipe 4 is embedded in the annular butt joint cavity, a plurality of placing cavities 201 are arranged on the peripheral side wall of the inner connection pipe 2 facing the outer connection pipe 3, a plurality of thermal fusion expanding bodies are embedded in the placing cavities 201, a plurality of fusion splicing cavities 401 corresponding to the placing cavities are arranged on the peripheral side wall of the fusion splicing pipe 4, it expands and prolongs chamber 301 to have seted up a plurality of arcs on the inner end wall of outer linking pipe 3, the chamber 201 is put to position one-to-one, butt fusion chamber 401 and arc expand and prolong chamber 301 intercommunication setting each other, place chamber 201, butt fusion chamber 401 and arc expand and prolong chamber 301 and form a cavity ellipse shape structure, all the cladding has the sealed pad of avoiding butt fusion chamber 401 to set up on the interior outer wall of outer linking pipe 3, place the hot melt of in the chamber 201 and expand and prolong the body and inlay after being heated and locate butt fusion chamber 401 and arc and expand and prolong in chamber 301, linking pipe 2 in the realization, butt fusion between outer linking pipe 3 and the fusion pipe 4.
Referring to fig. 5-7, a hollow elastic storage cone 6 is embedded in each of the welding cavities 401, a connecting ring 13 connected with the inner wall of the top end of the welding cavity 401 is movably sleeved on the outer side of the hollow elastic storage cone 6, welding filler 14 is filled in the hollow elastic storage cone 6, the welding filler 14 is made of welding material which is sticky in the prior art, the welding filler 14 is solid in an initial state, and a layer of cured film is formed between the upper end surface of the welding filler 14 and the hollow elastic storage cone 6.
Referring to fig. 4-9, specifically, the thermal melting expansion body includes a magnetic sheet layer 7 fixedly connected to the top end wall of the placement cavity 201, the bottom end of the magnetic sheet layer 7 is connected to an elastic coating bag layer 5, an embedded ball 9 is embedded inside the elastic coating bag layer 5, the upper end of the embedded ball 9 is coated with a thermal melting magnetic isolation layer 10 connected to the inner wall of the elastic coating bag layer 5, the embedded ball 9 is filled with a second ferromagnetic sheet 11, an engaging rod 12 is sleeved inside the embedded ball 9, the top end of the engaging rod 12 penetrates through the embedded ball 9 and is connected to the magnetic sheet layer 7, in an initial state, the bottom end of the elastic coating bag layer 5 is flush with the outer end of the placement cavity 201, the fusion pipe 4 is easily embedded in the annular docking cavity, and during fusion, the thermal melting magnetic isolation layer 10 is heated to solve the magnetic isolation effect, so that the magnetic sheet layer 7 has an outward thrust to the embedded ball 9, the embedded ball 9 and the elastic coating capsule layer 5 are pushed into the welding cavity 401, and the top end of the connecting rod 12 is remained on the magnetic sheet attaching layer 7, so that expanded embedding welding is realized.
The magnetic sheet attaching layer 7 comprises an elastic sheet 701 connected to the placing cavity 201, the inner end of the elastic sheet 701 is provided with a first ferromagnetic sheet 702, the first ferromagnetic sheet 702 and a second ferromagnetic sheet 11 are arranged in a magnetic repulsion manner, the hot melting magnetic isolating layer 10 comprises a hot melting resin layer coated on the embedded ball 9, a layer of densely arranged magnetic isolating particles is adhered inside the hot melting resin layer, the hot melting magnetic isolating layer 10 has an isolating effect on the magnetism between the first ferromagnetic sheet 702 and the second ferromagnetic sheet 11, when an external heating device is used for heating the welding position of the pipeline, the hot melting resin layer is heated and melted firstly, so that the magnetic isolating particles laid in a layer are separated from the embedded ball 9, the magnetic shielding effect on the first ferromagnetic sheet 702 is weakened to a certain degree, and the embedded ball 9 is pushed to one end away from the embedded ball by the magnetic sheet attaching layer 7 by virtue of the repulsion effect of the first ferromagnetic sheet 702 on the second ferromagnetic sheet 11, meanwhile, the welding filler 14 is heated to be melted, the embedded ball 9 and the elastic coating bag layer 5 move towards one side of the welding cavity 401 and are embedded in the welding filler 14 to be melted, the elastic coating bag layer 5 has elasticity, the embedded ball 9 continuously moves away from the magnetic sheet layer 7 and then is separated from the magnetic sheet layer 7 and is embedded in the welding cavity 401 and the arc-shaped expanding cavity 301 along with the elastic coating bag layer 5, and after solidification, the fixed connection of the inner layer and the outer layer of the welding filler can be realized.
Referring to fig. 7 and 9, the hollow elastic storage cone 6 is in a horn-shaped structure with a wide top and a narrow bottom, the inner wall of the hollow elastic storage cone 6 is provided with a plurality of material permeating holes, when the elastic coating capsule layer 5 extrudes along with the embedded ball 9 into the welding cavity 401, the elastic hollow elastic storage cone 6 can realize that the embedded ball 9 moves towards the arc-shaped expanding cavity 301 through the hollow elastic storage cone 6 and plays a subsequent positioning role for the embedded ball 9, meanwhile, during the extrusion movement, part of the welding filler 14 is guided into the placing cavity 201 through the gap between the embedded ball 9 and the welding cavity 401, the other part of the welding filler 14 overflows into the welding cavity 401 space outside the hollow elastic storage cone 6 through the material permeating holes, and the connecting ring 13 is pushed outwards under the condition that the welding filler 14 is continuously led out, so that the connecting ring 13 is pushed to the port of the placing cavity 201, and the elastic extrusion layer 8 in the placing cavity 201 plays a role of limiting role for the connecting ring 13, at this time, the joining ring 13 is located at the butt joint of the welding cavity 401 and the placing cavity 201, the inner side and the outer side of the joining ring 13 are both coated with welding filler 14, and the mechanical connection between the inner joining pipe 2 and the welding pipe 4 is further improved.
Referring to fig. 8-9, the connecting rod 12 is fixedly connected with the elastic plate 701, the elastic coating bag layer 5 is connected with the elastic plate 701 through an adhesive layer, when the embedded ball 9 moves away from one side of the first ferromagnetic plate 702, the elastic coating bag layer 5 is separated from the elastic plate 701 and moves together with the embedded ball 9, the connecting rod 12 pulls the elastic plate 701 to expand towards the outside of the placing cavity 201, the first ferromagnetic plate 702 has high-performance elasticity, the connecting rod 12 is connected between the elastic plate 701 and the elastic extrusion layer 8, so that the hot-melting expansion body is connected between the placing cavity 201 and the welding cavity 401, the elastic extrusion layer 8 attached to the peripheral wall of the hot-melting expansion body is arranged on the inner wall of the placing cavity 201, the elastic extrusion layer 8 also has high-performance elasticity, the positioning function is performed on the embedded ball 9 in an initial state, when the embedded ball 9 is separated from the elastic plate 701 to extrude the welding filler 14 outwards, the elastic extrusion layer 8 does not receive the same elasticity as the embedded ball 9, aggravate the degree of extrusion deformation inwards, the elastic sheet 701 after the deformation plays the positioning action on the one hand, and on the other hand is favorable to improving the adhesion between butt fusion filler 14 and the elastic extrusion layer 8 to putting 14 extrusion type contacts of butt fusion filler that chamber 201 one side was extruded, improves the butt fusion effect.
What need to supplement here is, the flexure strip 701, elasticity extrusion layer 8 and link up ring 13 all adopt metal elastic material to make, the flexure strip 701, all be equipped with the fibre thorn on the end wall of elasticity extrusion layer 8 and link up ring 13, the fibre thorn adopts metal fiber material to make, effectively strengthen the connection effect between butt fusion filler 14 and each link, a plurality of material pores of inhaling have been seted up on embedded ball 9's the terminal surface, push away embedded ball 9 to arc expand and prolong the intracavity in 301, the overflow expands to the arc and prolongs the fusion pipe 4 in the intracavity 301 and can adsorb outside the embedded ball 9 well, easily improve the connection effect between butt fusion filler 14 and the embedded ball 9.
The invention is characterized in that a left butt joint part consisting of an inner connecting pipe 2 and an outer connecting pipe 3 and a right butt joint part consisting of a welding pipe 4 are respectively arranged at the butt joint ends of a pair of pipe bodies 1, the inner connecting pipe 2 and the outer connecting pipe 3 form an annular butt joint cavity for the embedded connection of the welding pipe 4, the butt joint precision is high, a plurality of placing cavities 201, welding cavities 401 and arc-shaped extension cavities 301 which are in one-to-one correspondence are arranged on the peripheral side walls of the inner connecting pipe 2, the welding pipe 4 and the outer connecting pipe 3, a hot melting extension body is arranged in the placing cavity 201, after the butt joint of the two pipe bodies 1 is finished, an external heating device is used for heating the butt joint part, the hot melting extension body in the placing cavity 201 generates extension action after being heated, the hot melting extension body extends to the welding cavities 401 and the arc-shaped extension cavities 301, and in the hot melting extension body extension movement, the welding filler 14 after the inner side of the hollow elastic storage cone 6 is hot melted is extruded to the placing cavity 201 and the outer side of the elastic storage cone 6, the hot-melted welding filler 14 is coated on the inner side and the outer side of the hot-melted extension body and the hollow elastic storage cone 6, after solidification, layer-by-layer welding among the inner connecting pipe 2, the welding pipe 4 and the outer connecting pipe 3 is completed, and cracking of a welding position is not easily caused.
The components used in the present invention are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a MPP cable pipe convenient to butt fusion installation, includes a pair of body (1) of treating the butt fusion installation, its characterized in that: a pair of body (1) butt joint end is equipped with left butt joint portion and right butt joint portion respectively, left side butt joint portion is including the interior linking pipe (2) and the outer linking pipe (3) of cover on body (1) inside and outside wall, body (1) is located outer linking pipe (3) inboardly, form annular butt joint chamber between body (1) and the outer linking pipe (3), right side butt joint portion is including connecting in welded pipe (4) on another body (1), welded pipe (4) are inlayed and are located annular butt joint intracavity, interior linking pipe (2) have been seted up a plurality of on the lateral wall all around of outer linking pipe (3) to place chamber (201), and are a plurality of place the body of extending of putting chamber (201) inside all inlaying, set up a plurality of and place chamber (201) butt joint chamber (401) that the position corresponds on welded pipe (4) lateral wall all around, it is a plurality of butt joint chamber (401) inside all inlays to establish and installs cavity elasticity storage awl (6), the outer side of the hollow elastic storage cone (6) is movably sleeved with a connecting ring (13) connected with the inner wall of the top end of the welding cavity (401), welding filler (14) is filled in the hollow elastic storage cone (6), and the welding filler (14) is solid in an initial state.
2. The MPP cable duct for facilitating fusion installation of claim 1, wherein: seted up a plurality of arcs on the interior end wall of outer linking pipe (3) and expanded and prolong chamber (301), position one-to-one place chamber (201), butt fusion chamber (401) and arc and expand and prolong chamber (301) intercommunication setting each other, place chamber (201), butt fusion chamber (401) and arc and expand and prolong chamber (301) and form a cavity ellipse shape structure, all the cladding has the sealed pad of avoiding butt fusion chamber (401) to set up on the interior outer wall of outer linking pipe (3).
3. The MPP cable duct for facilitating fusion installation of claim 1, wherein: the hot melt expands and extends the body and includes that fixed connection attaches magnet piece layer (7) on putting chamber (201) top wall, the bottom that attaches magnet piece layer (7) is connected with elasticity cladding bag layer (5), elasticity cladding bag layer (5) inside is inlayed and is equipped with embedded ball (9), the cladding of embedded ball (9) upper end has hot melt magnetic isolation layer (10) that link up mutually with elasticity cladding bag layer (5) inner wall, the inside packing of embedded ball (9) have with second ferromagnetic piece (11), the inside cover of embedded ball (9) is equipped with linking pole (12), the top of linking pole (12) is run through embedded ball (9) and is connected in on attaching magnet piece layer (7).
4. The MPP cable duct of claim 3, wherein: the magnetic sheet attaching layer (7) comprises an elastic sheet (701) connected to the placing cavity (201), a first ferromagnetic sheet (702) is arranged at the inner end of the elastic sheet (701), and the first ferromagnetic sheet (702) and the second ferromagnetic sheet (11) are arranged in a magnetic repulsion mode.
5. The MPP cable duct of claim 4, wherein: the hot-melting magnetic isolating layer (10) comprises a hot-melting resin layer coated on the embedded ball (9), and a layer of densely arranged magnetic isolating particles is attached to the inside of the hot-melting resin layer.
6. The MPP cable duct of claim 5, wherein: the connecting rod (12) is fixedly connected with the elastic sheet (701) in a locking mode, and the elastic coating bag layer (5) is connected with the elastic sheet (701) through an adhesive layer.
7. The MPP cable duct of claim 6, wherein: the inner wall of the placing cavity (201) is provided with an elastic extrusion layer (8) attached to the peripheral wall of the hot melting extension body.
8. The MPP cable duct for facilitating fusion installation of claim 1, wherein: the hollow elastic storage cone (6) is of a horn-shaped structure with a wide upper part and a wide lower part and a narrow middle part, and a plurality of seepage holes are formed in the inner wall of the hollow elastic storage cone (6).
9. The MPP cable duct of claim 7, wherein: elastic sheet (701), elasticity extrusion layer (8) and link up ring (13) and all adopt metal elastic material to make, all be equipped with the fibre thorn on the end wall of elastic sheet (701), elasticity extrusion layer (8) and link up ring (13), the fibre thorn adopts metal material to make.
10. The MPP cable duct for facilitating fusion installation of claim 1, wherein: and the end surface of the embedded ball (9) is provided with a plurality of material suction holes.
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| CN202110526324.9A CN113300293B (en) | 2021-05-14 | 2021-05-14 | MPP cable pipe convenient to butt fusion installation |
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| CN202110526324.9A CN113300293B (en) | 2021-05-14 | 2021-05-14 | MPP cable pipe convenient to butt fusion installation |
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| CN113300293B CN113300293B (en) | 2022-07-22 |
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| EP0764493A1 (en) * | 1995-09-20 | 1997-03-26 | I.S.C.-Industria Scambiatori Calore S.p.A. | Induction welding method and system for forming a fluidtight joint between metal pipes |
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| CN106439351A (en) * | 2016-08-30 | 2017-02-22 | 天津军星管业集团有限公司 | Hot melting connecting structure between metal-plastic composite pipes and manufacturing method of hot melting connecting structure |
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| CN111637304A (en) * | 2020-06-02 | 2020-09-08 | 杨仁虎 | Novel integrative connection is from melting formula PE pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2007520A1 (en) * | 1989-01-11 | 1990-07-11 | Akio Nakashiba | Electrofusion joint and hot water supply header using the same |
| MC2160A1 (en) * | 1989-11-29 | 1992-04-09 | Gaz De France | METHOD AND CONNECTING PART USING AN ELECTRIC RESISTOR FOR WELDING PLASTIC ELEMENTS |
| EP0764493A1 (en) * | 1995-09-20 | 1997-03-26 | I.S.C.-Industria Scambiatori Calore S.p.A. | Induction welding method and system for forming a fluidtight joint between metal pipes |
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|---|---|
| CN113300293B (en) | 2022-07-22 |
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Effective date of registration: 20220630 Address after: 215200 group 19, shuangtaqiao village, Qidu Town, Wujiang District, Suzhou City, Jiangsu Province Applicant after: Suzhou Haoyue Pipe Co.,Ltd. Address before: 044000 group 5, Xigu Village, BEIXIANG Town, Yanhu District, Yuncheng City, Shanxi Province Applicant before: Chen Yangshi |
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