CN111396672A - Large-diameter electric melting pipe connector - Google Patents
Large-diameter electric melting pipe connector Download PDFInfo
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- CN111396672A CN111396672A CN202010372719.3A CN202010372719A CN111396672A CN 111396672 A CN111396672 A CN 111396672A CN 202010372719 A CN202010372719 A CN 202010372719A CN 111396672 A CN111396672 A CN 111396672A
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- sleeve
- electric
- pipe fitting
- electric smelting
- connector according
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/02—Welded joints; Adhesive joints
- F16L47/03—Welded joints with an electrical resistance incorporated in the joint
Abstract
The invention discloses a large-caliber electric smelting pipe connector, which comprises: the connecting pipe comprises a sleeve, an inserting groove is formed in the upper end of the sleeve, a connecting end is fixedly installed inside the lower end of the inserting groove, a fixed curved surface is formed on the surface of the sleeve, and an electric heating wire is fixedly installed inside the sleeve; a plug bush; the electric melting connector comprises a protective sleeve, a binding post is fixedly arranged in the protective sleeve, a protective cap is sleeved at the upper end of the protective sleeve, and a clamping edge is fixedly connected to the lower end of the surface of the protective sleeve; the connecting pipe is simple in structure and novel in design, the problem of difficult connection caused by out-of-roundness of large-diameter pipes and outside diameter size deviation can be effectively solved, the welding process can be prevented from being expanded under pressure and contracted after cooling, and the stability after connection is effectively enhanced.
Description
Technical Field
The invention relates to the technical field of electric smelting pipes, in particular to a large-caliber electric smelting pipe fitting connector.
Background
At present, electric hot melting connecting pipe fittings of pipes in the market are generally divided into two categories, one category is socket type electric hot melting pipe fittings, and the other category is electric hot melting belts. The maximum production caliber of the polyethylene full-plastic pipeline at present reaches Dn 1600mm, and the large-caliber pipe is mainly connected in a hot-melt butt joint mode; the pipe with the caliber less than Dn which is 630mm can be connected by adopting an electric melting pipe fitting, and particularly, the pipe is most widely applied to a gas pipeline, and has the main characteristics of high connection strength, high safety coefficient and convenient use, but the pipe generally adopts an injection molding process, namely a one-step method and a two-step method, a pipe fitting injection molding machine has a large mold, expensive equipment and high production cost, so that the pipe fitting price is very high, the pipe fitting is mainly used for water supply pipe repair engineering, gas engineering and steel wire mesh framework composite pipes at present, large-scale production does not exist at home and abroad for the production of electric melting pipe fittings with larger calibers due to various reasons, and polyethylene pipes (Dn is more than or equal to 630mm) with larger calibers almost adopt a.
However, the conventional electric fuse tube has some disadvantages in the use process, such as:
1. the large-size electric melting pipe fitting has the advantages that as the welding time is long, the size of a raw material melting pool for melting a welding surface is large, and under the action of thermal expansion and cold contraction, the welding surface can form a remarkable hole phenomenon in the cooling process, so that the welding strength is remarkably reduced;
2. most of the carbon black adopted by PE raw materials in the market at present is carbon black with a common size, although the carbon black has better weather resistance, the risk of aging under the action of environmental factors still exists in the service life of the pipeline, so that the pipeline strength is obviously reduced, and the hidden trouble is more prominent particularly under the condition that the pipeline must be exposed or other special occasions are provided;
3. the electrofusion connector can remain on the surface of the electrofusion pipe after welding is finished, and often influences are caused when the electrofusion pipe needs to be fixed or fixed in other ways, and sometimes the electrofusion pipe can be broken due to careless touch, so that leakage is caused at the connection position.
Disclosure of Invention
The invention aims to provide a large-caliber electric melting pipe connector to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the method comprises the following steps:
the connecting pipe comprises a sleeve, an inserting groove is formed in the upper end of the sleeve, a connecting end is fixedly installed inside the lower end of the inserting groove, a fixed curved surface is formed on the surface of the sleeve, and an electric heating wire is fixedly installed inside the sleeve;
a plug bush;
the electric melting connector comprises a protective sleeve, a binding post is fixedly arranged in the protective sleeve, a protective cap is sleeved at the upper end of the protective sleeve, and a clamping edge is fixedly connected to the lower end of the surface of the protective sleeve;
the electric melting connector is fixedly inserted into the two ends of the upper end of the connecting pipe.
Furthermore, the inserting groove is provided with two groups, the heating wire is provided with two groups, and the lower end of the connecting end at the lower end in the inserting groove is fixedly connected with one end of the heating wire.
Furthermore, the lag passes through inserting groove and sleeve fixed connection, and carries out the joint through the joint arris and fix.
Further, the lower end of the binding post is connected with the connecting end through a protective sleeve in an inserting connection mode inside the inserting connection groove, and the binding post and the connecting end are electrically connected after being connected with a power supply.
Furthermore, the inserting sleeve is a conical inserting port with a large outer part and a small inner part, and the inserting sleeve is made of soft elastic rubber.
Furthermore, the fixed curved surface is a slotted structure surrounding the surface of the sleeve, the fixed curved surface on the surface of the sleeve is subjected to mechanical reinforcement treatment through steel wire bundling, and the steel wire is a stainless steel wire.
Furthermore, the distance between the electric heating wire and the inner wall of the sleeve is 0.4 +/-0.1 mm, the electric heating wire is made of copper wires or copper-nickel alloy wires, and the electric heating wire is spirally arranged on the inner wall of the sleeve.
Furthermore, the structure of helmet is the trapezium structure, helmet upper end diameter slightly is less than the diameter of inserting groove.
Furthermore, the connecting pipe is made of high-density polyethylene or medium-density polyethylene.
Further, the cross section of electric smelting connector is circular, the joint arris is provided with the multiunit, and is the annular cylinder structure.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the inserting sleeve is arranged, is provided with the conical inserting port with the large outer part and the small inner part, and is made of soft elastic rubber, so that the large-diameter pipe can be inserted more conveniently during inserting, and the problem of difficult connection caused by out-of-roundness and outer diameter size deviation of the large-diameter pipe is solved;
2. according to the invention, the protective sleeve is fixedly connected with the sleeve through the inserting groove, and is clamped and fixed through the clamping edge, so that the protective sleeve can be pulled out after electric smelting connection, the influence on the pipeline during fixing is avoided, cracks between the connecting pipe and the electric smelting connector caused by careless contact during construction can be prevented, and the protective cap is in a trapezoidal structure, the diameter of the upper end of the protective cap is slightly smaller than that of the inserting groove, so that the inserting groove can be sealed, and dust caused by leakage is prevented from gathering;
3. according to the invention, through the arranged fixed curved surface, the axial line of the pipe can have a telescopic space under the condition of temperature change of expansion with heat and contraction with cold, the fixed curved surface on the surface of the sleeve is subjected to mechanical reinforcement treatment through steel wire bundling, and the steel wire is a stainless steel wire, so that the pipe can be prevented from being expanded under pressure and contracted after being cooled in the welding process, and the stability after connection is effectively enhanced;
4. the invention has simple structure and novel design, can effectively solve the problem of difficult connection caused by out-of-roundness of the large-diameter pipe and the deviation of the outer diameter size, can also prevent the pipe from being compressed and expanded in the welding process and from shrinking after cooling, and effectively enhances the stability after connection.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of a connecting tube according to the present invention;
fig. 4 is a schematic structural view of the electrofusion connector of the present invention.
In FIGS. 1-4: 10-connecting pipe; 11-a sleeve; 12-electric heating wire; 13-a connection end; 14-a fixed curved surface; 15-inserting grooves; 20-a plug bush; 30-an electrofusion connector; 31-a protective sleeve; 32-terminal post; 33-protective cap; 34-clamping edge.
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: the method comprises the following steps: a connecting pipe 10, a plug bush 20 and an electric smelting connector 30.
The connecting pipe 10 comprises a sleeve 11, an insertion groove 15 is formed in the upper end of the sleeve 11, a connecting end 13 is fixedly installed inside the lower end of the insertion groove 15, a fixed curved surface 14 is formed in the surface of the sleeve 11, and an electric heating wire 12 is fixedly installed inside the sleeve 11;
the electric smelting connector 30 comprises a protective sleeve 31, a binding post 32 is fixedly mounted inside the protective sleeve 31, a protective cap 33 is sleeved at the upper end of the protective sleeve 31, and a clamping edge 34 is fixedly connected to the lower end of the surface of the protective sleeve 31;
wherein, both ends of the connecting pipe 10 are fixedly connected with the plug bushes 20, and both ends of the upper end of the connecting pipe 10 are fixedly plugged with the electric melting connectors 30.
Further, the insertion groove 15 is provided with two sets, the heating wire 12 is provided with two sets, and the lower end of the connecting end 13 at the lower end inside the insertion groove 15 is fixedly connected with one end of the heating wire 12.
The electric melting connector 30 may be inserted into the insertion groove 15 to be connected to the connection end 13, and may be electrically melted by the heating wire 12 during the electric melting connection.
Furthermore, the protective sleeve 31 is fixedly connected with the sleeve 11 through the insertion groove 15, and is clamped and fixed through the clamping edge 34.
The protective sleeve 31 can be fixed by the snap-in rib 34, and the fixed protective sleeve 31 can connect the terminal 32 with the connection end 13.
Further, the lower end of the binding post 32 is inserted into the insertion groove 15 through the protective sleeve 31 and connected with the connecting end 13, and the binding post 32 and the connecting end 13 are electrically connected after being connected with a power supply.
The electric melting connector 30 may be inserted into the insertion groove 15 to be connected to the connection end 13, and may be electrically melted by the heating wire 12 during the electric melting connection.
Further, the plug bush 20 is a tapered plug socket with a large outer part and a small inner part, and the plug bush 20 is made of soft elastic rubber.
Wherein, make can be more convenient insert when carrying out heavy-calibre pipeline grafting, solve the problem of the difficult connection that heavy-calibre tubular product out of roundness and external diameter size deviation caused.
Further, the fixed curved surface 14 is a slotted structure surrounding the surface of the sleeve 11, the fixed curved surface 14 on the surface of the sleeve 11 is mechanically reinforced by steel wire bundling, and the steel wire is a stainless steel wire.
Wherein, can have flexible space at expend with heat and contract with cold temperature change condition tubular product axial line down to the fixed curved surface on sleeve surface ties up through the steel wire and carries out mechanical enhancement processing, and the steel wire is the stainless steel wire, makes can prevent that welding process pressurized rises and cooling back shrink, the effectual stability of connecting of having strengthened.
Further, the distance between the electric heating wire 12 and the inner wall of the sleeve 11 is 0.4 ± 0.1mm, the electric heating wire 12 is made of copper wires or copper-nickel alloy wires, and the electric heating wire 12 is spirally arranged on the inner wall of the sleeve 11.
The electric melting connection method can better stabilize the electric melting connection when the electric melting connection is needed, and ensure the stability after electric melting.
Further, the structure of the protective cap 33 is a trapezoidal structure, and the diameter of the upper end of the protective cap 33 is slightly smaller than that of the insertion groove 15.
Wherein, make can carry out the closing cap with inserting groove 15, avoid gathering because of the dust that spills and lead to.
Further, the connection pipe 10 is made of high density polyethylene or medium density polyethylene.
Wherein, can be better carry out electric smelting and melt, guarantee to melt when the beautiful fixed connection of gold star and be connected to the pipeline surface.
Further, the cross section of the electric smelting connector 30 is circular, and the clamping ribs 34 are provided with multiple groups and are of annular cylindrical structures.
Wherein, can be better insert the inside of inserting groove 15 and fix, prevent to drop when not using, and unstable with being connected of link 13 during the electric smelting.
The working principle is as follows: when in use, the two ends are inserted through the plug bush 20, after the plug is stably inserted, the power supply is connected to the wiring terminal 32 in the electric smelting connector 30, so that current can be output to the heating wire 12 through the connection terminal 13 through the binding post 32, the heating wire 12 welds the connection, after the welding is completed, the fixed curved surface 14 of the surface of the sleeve 11 may be mechanically reinforced by wire bonding, so that the welding process can be prevented from being pressed and expanded and cooled and then contracted, the stability after connection is effectively enhanced, then the electric smelting connector 30 is pulled out from the inside of the inserting groove 15, and the protective cap 33 at the upper end of the protective sleeve 31 is reversely buckled into the inside of the inserting groove 15 for sealing, thereby avoiding dust accumulation caused by leakage, and can be better fixed, can also prevent because of the careless fracture between connecting pipe and the electric smelting connector that leads to of touching during the construction.
In the several embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a heavy-calibre electric smelting pipe fitting connector which characterized in that includes:
the connecting pipe (10) comprises a sleeve (11), an inserting groove (15) is formed in the upper end of the sleeve (11), a connecting end (13) is fixedly installed inside the lower end of the inserting groove (15), a fixed curved surface (14) is formed in the surface of the sleeve (11), and an electric heating wire (12) is fixedly installed inside the sleeve (11);
a plug-in sleeve (20);
the electric melting connector (30) comprises a protective sleeve (31), a binding post (32) is fixedly installed in the protective sleeve (31), a protective cap (33) is sleeved at the upper end of the protective sleeve (31), and a clamping edge (34) is fixedly connected to the lower end of the surface of the protective sleeve (31);
the electric melting connector is characterized in that plug bushes (20) are fixedly connected to two ends of the connecting pipe (10), and electric melting connectors (30) are fixedly plugged into two ends of the upper end of the connecting pipe (10).
2. The large-caliber electric smelting pipe fitting connector according to claim 1, further comprising:
the electric heating wire heating device is characterized in that the insertion grooves (15) are provided with two groups, the electric heating wires (12) are provided with two groups, and the lower ends of the connecting ends (13) at the lower end in the insertion grooves (15) are fixedly connected with one ends of the electric heating wires (12).
3. The large-caliber electric smelting pipe fitting connector according to claim 1, further comprising:
the protective sleeve (31) is fixedly connected with the sleeve (11) through the insertion groove (15) and is clamped and fixed through the clamping edge (34).
4. The large-caliber electric smelting pipe fitting connector according to claim 1, further comprising:
the lower end of the binding post (32) is connected with the connecting end (13) through a protective sleeve (31) in an inserting connection mode inside the inserting connection groove (15), and the binding post (32) is electrically connected with the connecting end (13) after being connected with a power supply.
5. The large-caliber electric smelting pipe fitting connector according to claim 1, further comprising:
the plug bush (20) is a conical plug port with a large outer part and a small inner part, and the plug bush (20) is made of soft elastic rubber.
6. The large-caliber electric smelting pipe fitting connector according to claim 1, further comprising:
the fixed curved surface (14) is of a slotted structure surrounding the surface of the sleeve (11), the fixed curved surface (14) on the surface of the sleeve (11) is subjected to mechanical reinforcement treatment through steel wire bundling, and the steel wire is a stainless steel wire.
7. The large-caliber electric smelting pipe fitting connector according to claim 1, further comprising:
the distance between the electric heating wire (12) and the inner wall of the sleeve (11) is 0.4 +/-0.1 mm, the electric heating wire (12) is made of copper wires or copper-nickel alloy wires, and the electric heating wire (12) is spirally arranged on the inner wall of the sleeve (11).
8. The large-caliber electric smelting pipe fitting connector according to claim 1, further comprising:
the structure of the protective cap (33) is a trapezoidal structure, and the diameter of the upper end of the protective cap (33) is slightly smaller than that of the insertion groove (15).
9. The large-caliber electric smelting pipe fitting connector according to claim 1, further comprising:
the connecting pipe (10) is made of high-density polyethylene or medium-density polyethylene.
10. The large-caliber electric smelting pipe fitting connector according to claim 1, further comprising:
the cross section of the electric smelting connector (30) is circular, and the clamping edges (34) are provided with a plurality of groups and are of annular cylindrical structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010372719.3A CN111396672A (en) | 2020-05-06 | 2020-05-06 | Large-diameter electric melting pipe connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010372719.3A CN111396672A (en) | 2020-05-06 | 2020-05-06 | Large-diameter electric melting pipe connector |
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| Publication Number | Publication Date |
|---|---|
| CN111396672A true CN111396672A (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010372719.3A Pending CN111396672A (en) | 2020-05-06 | 2020-05-06 | Large-diameter electric melting pipe connector |
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| CN (1) | CN111396672A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873712A (en) * | 2021-01-14 | 2021-06-01 | 重庆西洲管业有限公司 | Preparation method of antibacterial capacitor tube |
-
2020
- 2020-05-06 CN CN202010372719.3A patent/CN111396672A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873712A (en) * | 2021-01-14 | 2021-06-01 | 重庆西洲管业有限公司 | Preparation method of antibacterial capacitor tube |
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