CN113464753A

CN113464753A - Pipeline port hot melting connecting structure

Info

Publication number: CN113464753A
Application number: CN202110783856.0A
Authority: CN
Inventors: 刘永; 姜成旭; 姜雯哲
Original assignee: Shenyang Jiuri Industrial Co ltd
Current assignee: Shenyang Jiuri Industrial Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-10-01

Abstract

The invention discloses a hot-melt connecting structure for a pipeline port, which relates to the technical field of pipeline connection and comprises a pipe, a pipe fitting and a fastening cover, the pipe fitting is fixedly provided with a pipe fitting bell mouth which is of a tubular structure, the pipe is inserted in the pipe fitting bell mouth, the pipe, the pipe bell mouth and the pipe are in rigid connection after being in hot melting connection through the connecting part, the strength and the sealing bearing capacity of the connection part are not less than those of the pipe and the pipe, the sealing performance and the bearing capacity of the pipe and the pipe are greatly improved, the service life of a pipeline system is the same after the hot melting connection, and the service life of the pipeline system is the same after the hot melting connection, and then the life of promotion pipe connection is in the same place after the hot melt connection, prevents that tubular product and pipe fitting from receiving temperature influence or other exogenic actions and axial displacement.

Description

Pipeline port hot melting connecting structure

Technical Field

The invention relates to the technical field of pipeline connection, in particular to a pipeline port hot-melting connection structure.

Background

The pipeline connection means that the prefabricated pipe sections are connected into a complete system according to the requirements of design drawings. In construction, different connection methods are selected according to the materials of the used pipes, the common steel pipes are in threaded connection, flange connection, welding connection, socket connection, pipeline bonding connection and the like, for example, in the invention patent named as a pipeline connection device and with the publication number of CN106545712A, two pipelines are designed to pass through the flanges, and the connection of multiple cylinder sleeve sections can adapt to transverse and longitudinal displacement caused by factors such as uneven settlement of soil layers, motion change of earth crust, earthquakes and the like, so that the pipelines are more flexible; the multi-section cylinder sleeve facilitates the connection of two pipelines, however, the existing pipeline connection mode increases the diameter of the pipeline by the connection mode of externally adding a flange, the pipeline cannot be pre-buried or connected for the connection of pipelines at special positions, and the existing pipeline connection belongs to flexible connection, the bearing capacity of a flexible connection sealing element is influenced by the material and the mechanical property of the sealing element and the compression uniformity of the sealing element in the circumferential direction after being subjected to external force load, the problem of synchronous practical service life needs to be considered for different materials of the sealing element and a pipe fitting system, the problem of axial displacement can occur in the flexible connection, the existing rigid connection mode of partial pipeline connection also has a sealing adhesive connection mode, but the problem of connection separation of the adhesive occurs at the joint position along with the time extension, the system leaks water and the use is influenced, the existing partial pipeline connection adopts a hot melting machine, and the method that the hot melting machine heats the pipe fitting and the pipe fitting respectively and then is spliced together is inconvenient for field construction, and the pipeline butt joint equipment structure of current hot melt machine is loaded down with trivial details, and the cost of manufacture is higher, and then reduces the work efficiency of pipe connection. The invention also relates to an electromagnetic induction heating welding double-hot-melting pipe fitting, a utility model patent with the application number of 201320613261.1 and an invention patent application with the application number of 201210276980.9, wherein resistance wires of the heating welding double-hot-melting pipe fitting are pre-embedded in a pipe fitting main body, the processing technology is complex, the process flows are multiple, the manufacturing cost is high, and the leakage defect of comprehensive welding cannot be ensured. The electromagnetic induction heating type steel-plastic pipe accords with the full butt fusion structure of pipeline, requires to preset the steel-plastic pipe in the tubular product, places the electromagnetic induction ring on the pipe fitting main part, and manufacturing cost is high, and the process is complicated.

Disclosure of Invention

The invention aims to solve the problems and designs a hot melting connection structure for a pipeline port.

The technical scheme of the invention for realizing the aim is as follows: the utility model provides a pipeline port hot melt connection structure, includes tubular product, pipe fitting and buckle lid, be equipped with the pipe fitting bellmouth on the pipe fitting, the pipe fitting bellmouth is the tubular structure, tubular product cartridge is in the pipe fitting bellmouth, tubular product and pipe fitting department of meeting, set up the ring channel in the pipe fitting bellmouth, install adapting unit in the ring channel, adapting unit and ring channel internal face and the outer wall department of meeting of tubular product, the through-hole has been seted up to the buckle lid, the buckle lid is adorned on tubular product and is connected with the pipe fitting bellmouth through the through-hole suit.

Preferably, the connecting part comprises a fused ring plastic main body and a resistance wire.

Preferably, the connecting member further comprises a fused ring plastic body and a metal ring.

Preferably, a pipe socket is arranged on the pipe fitting, the pipe socket is of a tubular structure, the pipe is inserted into the pipe socket, the pipe is connected with the pipe fitting, an annular groove is formed in the pipe socket, a welding ring plastic main body is installed in the annular groove, a resistance wire is wound on the welding ring plastic main body, the resistance wire is connected with the inner wall surface of the annular groove and the outer wall surface of the pipe, a through hole is formed in the fastening cover, and the fastening cover is sleeved on the pipe through the through hole and is connected with the pipe socket.

Preferably, a pipe socket is arranged on the pipe fitting, the pipe socket is of a tubular structure, the pipe is inserted into the pipe socket, a joint of the pipe and the pipe fitting is provided with an annular groove, a welding ring plastic main body is installed in the annular groove, an inner cavity is arranged in the welding ring plastic main body, the metal ring is fixedly installed in the inner cavity, the joint of the welding ring plastic main body and the inner wall surface of the annular groove and the joint of the outer wall surface of the pipe are provided with through holes, and the fastening cover is sleeved on the pipe through the through holes and is connected with the pipe socket.

Preferably, the outer wall surface of the pipe fitting bellmouth is provided with an external thread, the inner wall surface of the fastening cover is provided with an internal thread, the internal thread is matched with the external thread, and the fastening cover is screwed on the pipe fitting bellmouth.

Preferably, the upper wall surface in the fastening cover is connected with the welding ring plastic main body or the resistance wire.

Advantageous effects

The pipe end hot-melt connecting structure manufactured by the technical scheme of the invention has the advantages that the pipe, the pipe socket and the pipe belong to rigid connection after the hot-melt connection of the connecting part, the strength and the sealing bearing capacity of the joint are not less than those of the pipe and the pipe, the sealing performance and the bearing capacity of the pipe and the pipe are greatly improved, the service life of a pipeline system after the hot-melt connection is the same as the service life of the pipe system after the hot-melt connection, the service life of the pipeline connection is prolonged, the pipe and the pipe are combined together after the hot-melt connection, the axial displacement of the pipe and the pipe under the influence of temperature or other external forces is prevented, when the joint of the pipe and the pipe is arranged in a buried layer, the hot-melt rigid connection can not be used according to the specification of national standard GB50015-2019DE, the hot-melt connection can be arranged in the buried layer, the hot-melt connection system is made of the same material, the permanent rigid connection can not be broken, and the problem of water leakage of the pipe can be prevented, resistance and electromagnetic induction hot melt are connected the construction installation of being convenient for in the hot melt after installing well earlier with pipe-line system, the mode through the excessive weld ring plastics main part in the middle of is convenient for operate, the cost of manufacture is low, and under the effect of screwing up the fastening cover, increase the pressure of butt fusion contact, the better more reliable of butt fusion, the work efficiency of pipe connection is improved, through separating weld ring plastics main part and pipe fitting tubular product, the weld ring plastics main part of being convenient for is processed into product with resistance wire or becket, reduce the manufacturing cost of pipe fitting and tubular product.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment 1 of a pipe port hot-melt connection structure according to the present invention.

Fig. 2 is a schematic structural diagram of an embodiment 2 of a pipe port hot-melt connection structure according to the present invention.

Fig. 3 is a schematic structural diagram of a connecting part in embodiment 1 of a pipe port hot-melt connecting structure according to the present invention.

Fig. 4 is a schematic top view of a connecting part of an embodiment 1 of a hot-melt connecting structure for pipeline ports according to the present invention.

In the figure: 1. a pipe; 2. a pipe fitting; 3. fastening the cover; 4. a pipe socket; 5. an annular groove; 6. a fused ring plastic body; 7. a resistance wire; 8. a metal ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a pipeline port hot-melting connecting structure comprises a pipe 1, a pipe 2 and a fastening cover 3, wherein the pipe 2 is provided with a pipe socket 4, the pipe socket 4 is of a tubular structure, the pipe 1 is inserted into the pipe socket 4, the joint of the pipe 1 and the pipe 2 is provided with an annular groove 5, the annular groove 5 is internally provided with a connecting part, the joint of the connecting part and the inner wall surface of the annular groove 5 and the outer wall surface of the pipe 1 is provided with a through hole, the fastening cover 3 is sleeved on the pipe 1 through the through hole and is connected with the pipe socket 4, the connecting part comprises a welding ring plastic main body 6 and a resistance wire 7, the connecting part further comprises a welding ring plastic main body 6 and a metal ring 8, the pipe 2 is provided with the pipe socket 4, the pipe socket 4 is of a tubular structure, the pipe 1 is inserted into the pipe socket 4, the welding joint comprises a pipe 1, a pipe fitting 2, an annular groove 5, a welding ring plastic main body 6, a resistance wire 7, an inner wall surface of the annular groove 5 and an outer wall surface of the pipe 1, a through hole, a fastening cover 3, a pipe 1 and a pipe fitting socket 4, wherein the resistance wire 7 is wound on the welding ring plastic main body 6, the inner wall surface of the annular groove 5 and the outer wall surface of the pipe 1 are connected, the fastening cover 3 is sleeved on the pipe 1 through the through hole and is connected with the pipe fitting socket 4, the pipe fitting 2 is provided with the pipe fitting socket 4, the pipe fitting socket 4 is of a tubular structure, the pipe 1 is inserted on the pipe fitting socket 4, the joint of the pipe 1 and the pipe fitting 2 is provided with the annular groove 5, the welding ring plastic main body 6 is installed in the annular groove 5, an inner cavity is arranged in the welding ring plastic main body 6, a metal ring 8 is fixedly installed in the inner cavity, the welding ring plastic main body 6 is connected with the inner wall surface of the annular groove 5 and the outer wall surface of the pipe 1, the fastening cover 3 is provided with a through hole, the fastening cover 3 is sleeved on the pipe 1 through the through hole and is connected with the pipe fitting bellmouth 4, the outer wall surface of the pipe fitting bellmouth 4 is provided with an external thread, the inner wall surface of the fastening cover 3 is provided with an internal thread, the internal thread is matched with the external thread, the fastening cover 3 is screwed on the pipe fitting bellmouth 4, and the inner upper wall surface of the fastening cover 3 is connected with the welding ring plastic main body 6 or the resistance wire 7.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

Example 1: when the welding device is used, the pipe 1 is inserted into the pipe socket 4, so that the pipe 1 is butted with the pipe 2, the welding ring plastic main body 6 wound with the resistance wire 7 is placed into the pipe socket 4, the welding ring plastic main body 6 wound with the resistance wire 7 is located in the annular groove 5, the resistance wire 7 is connected with the inner wall surface of the pipe socket 4 and the outer wall surface of the pipe 1, the fastening cover 3 is sleeved on the connecting pipe in advance, the resistance wire 7 is electrified at the moment, the temperature of the resistance wire 7 is increased, the welding ring plastic main body 6 is further melted, the melted welding ring plastic main body 6 is used for bonding the pipe socket 4 with the pipe 1, the fastening cover 3 is screwed on the pipe socket 4 at the moment, and the pipe socket 4 is fused with the pipe 1 after the temperature of the pipe socket 4 is reduced.

Example 2: when the welding ring plastic body fusion welding device is used, the pipe 1 is inserted into the pipe socket 4, the pipe 1 is butted with the pipe 2, the fusion welding ring plastic body 6 is placed into the annular groove 5 of the pipe socket 4, the fastening cover 3 is sleeved on the connecting pipe in advance, the fastening cover 3 is screwed on the pipe socket 4, a magnetic field is applied to the outside of the pipe socket 4 at the moment, the magnetic field is located on one side of the fusion welding ring plastic body 6, the metal ring 8 is fixedly installed in the fusion welding ring plastic body 6, the electromagnetic induction is generated between the metal ring 8 and the magnetic field, the metal ring 8 is heated to melt the fusion welding ring plastic body 6, the pipe 1 is fused with the pipe socket 4, and the fusion welding is carried out until the temperature of the pipe socket 4 and the pipe 1 is reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Claims

1. The utility model provides a pipeline port hot melt connection structure, includes tubular product (1), pipe fitting (2) and buckles and covers (3), its characterized in that, be equipped with pipe fitting bellmouth (4) on pipe fitting (2), pipe fitting bellmouth (4) are the tubular structure, tubular product (1) cartridge is in pipe fitting bellmouth (4), tubular product (1) and pipe fitting (2) department of meeting, ring channel (5) have been seted up in pipe fitting bellmouth (4), install adapting unit in ring channel (5), adapting unit meets with ring channel (5) internal face and tubular product (1) outer wall, the through-hole has been seted up on buckling and covering (3), buckle and cover (3) through-hole suit on tubular product (1) and be connected with pipe fitting bellmouth (4).

2. A pipe port hot melt connection structure as claimed in claim 1, wherein said connection member comprises a fused ring plastic body (6) and a resistance wire (7).

3. A pipe port hot melt connection structure as claimed in claim 1, wherein said connection member further comprises a fused ring plastic body (6) and a metal ring (8).

4. The pipeline port hot-melt connection structure as claimed in claim 2, wherein a pipe socket (4) is arranged on the pipe (2), the pipe socket (4) is of a tubular structure, the pipe (1) is inserted on the pipe socket (4), the pipe (1) is connected with the pipe (2), an annular groove (5) is formed in the pipe socket (4), a welding ring plastic main body (6) is installed in the annular groove (5), a resistance wire (7) is wound on the welding ring plastic main body (6), the resistance wire (7) is connected with the inner wall surface of the annular groove (5) and the outer wall surface of the pipe (1), a through hole is formed in the fastening cover (3), and the fastening cover (3) is sleeved on the pipe (1) through the through hole and is connected with the pipe socket (4).

5. The pipe port hot melt connecting structure as claimed in claim 3, the pipe fitting (2) is provided with a pipe fitting bellmouth (4), the pipe fitting bellmouth (4) is of a tubular structure, the pipe (1) is inserted on the pipe fitting bell mouth (4), the joint of the pipe (1) and the pipe fitting (2), an annular groove (5) is formed in the pipe fitting bellmouth (4), a welding ring plastic main body (6) is arranged in the annular groove (5), an inner cavity is arranged in the welding ring plastic main body (6), the metal ring (8) is fixedly arranged in the inner cavity, the welding ring plastic main body (6) is connected with the inner wall surface of the annular groove (5) and the outer wall surface of the pipe (1), the fastening cover (3) is provided with a through hole, and the fastening cover (3) is sleeved on the pipe (1) through the through hole and is connected with the pipe fitting bellmouth (4).

6. The hot-melt connecting structure for the pipeline ports as claimed in any one of claims 4 or 5, wherein external threads are formed on the outer wall surface of the pipe fitting socket (4), internal threads are formed on the inner wall surface of the fastening cover (3), the internal threads are matched with the external threads, and the fastening cover (3) is screwed on the pipe fitting socket (4).

7. The pipe port hot melt connection structure as claimed in any one of claims 4 or 5, wherein the upper inner wall surface of the fastening cover (3) is connected with the welding ring plastic main body (6) or the resistance wire (7).