CN110701410B - Shear-resistant positioning connecting device for water supply pipeline - Google Patents
Shear-resistant positioning connecting device for water supply pipeline Download PDFInfo
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- CN110701410B CN110701410B CN201911015989.2A CN201911015989A CN110701410B CN 110701410 B CN110701410 B CN 110701410B CN 201911015989 A CN201911015989 A CN 201911015989A CN 110701410 B CN110701410 B CN 110701410B
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- water supply
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- supply pipe
- connecting piece
- supply pipeline
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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
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Abstract
The invention discloses a shear-resistant positioning connecting device of a water supply pipeline, which comprises a connecting piece body and water supply pipelines at two ends, wherein the connecting piece body comprises annular positioning pieces positioned at two ends of the connecting piece body and an intermediate body between the two positioning pieces, grooves are uniformly distributed on the end surfaces of the annular positioning pieces in an annular shape, positioning holes are formed in the bottoms of the grooves and penetrate through the side walls of the annular positioning pieces, positioning rods matched with the positioning holes are inserted in the positioning holes in a penetrating manner, stop blocks matched with the grooves are arranged at one ends of the positioning rods, the other ends of the positioning rods extend to the outside of the positioning holes, the ends of the grooves of the annular positioning pieces and the connecting piece body are subjected to hot-melt welding, and when the connecting device is installed, the positioning rods are inserted into corresponding positioning grooves in the water supply pipeline and then subjected to hot-melt welding, and the coaxiality after the welding positioning is high, and the shear-resistant capability is strong.
Description
Technical Field
The invention relates to the technical field of water supply pipeline connection, in particular to a shearing-resistant positioning connection device of a water supply pipeline.
Background
The water supply pipeline is used as a supporting body of drinking water and needs to be applied in a large quantity, the PE water supply pipeline with the highest use frequency is used, the PE pipe is in the municipal pipe market in China at present, the plastic pipe is steadily developed, the PE pipe, the PP-R pipe and the UPVC pipe all occupy a place, and the strong development of the PE pipe is most attractive. PE pipe's application is extensive. The water supply pipe and the gas pipe are two largest application markets. The PE resin is polymerized from monomer ethylene, and can obtain resins of different densities due to different polymerization conditions such as pressure and temperature during polymerization, and is classified into high density polyethylene, medium density polyethylene and low density polyethylene. When processing different grade type PE tubular product, according to the difference of its application condition, choose for use corresponding resin trade mark, also different to the requirement of extruder and mould simultaneously, adopt the electrothermal welding mode to connect between the polyethylene pipe-line system, the intensity that connects is higher than pipeline body intensity, the step of connecting is: clamping and cleaning the port, adjusting and grinding the port, aligning the port, applying pressure for fusion welding, relieving pressure for cooling, before welding the water supply pipeline, checking the coaxiality of the pipe (the maximum misalignment amount is 10% of the wall thickness of the pipe), the prior connecting technology is to fix the water supply pipeline together by adopting a fixing device, because the structure of the fixing device is unreasonable, the thickness of the pipeline is different, the qualified coaxiality can not be achieved during butt joint, or because of external force reasons, such as earthquake, a shearing force can be given to the water supply pipeline, cracks or fractures can appear at the butt joint of the water supply pipeline, drinking water leakage is caused, resource waste is caused, and safety hidden dangers are easy to bring.
Disclosure of Invention
The invention aims to provide a shearing-resistant positioning connecting device of a water supply pipeline, which is used for solving the problems of unqualified coaxiality and poor shearing resistance when the water supply pipeline is butted, so that the butted part is cracked or broken, water resource waste is caused, and potential safety hazards are caused.
In order to solve the technical problem, the invention adopts the following scheme:
the utility model provides a water supply pipe's positioning connection device that shears, water supply pipe including connecting piece body and both ends, the connecting piece body is including the ring shape setting element that is located the connecting piece body both ends and the midbody between two ring shape setting elements, annular evenly distributed is fluted on the ring shape setting element terminal surface, the recess bottom is equipped with the locating hole and runs through the lateral wall of ring shape setting element, alternate in the locating hole has the locating lever that matches with the locating hole, and locating lever one end is equipped with the dog that matches with the recess, and the locating lever other end extends to the locating hole outside, and hot melt welding between ring shape setting element fluted end and the connecting piece body, during the installation, the locating lever inserts in the last corresponding constant head tank of water supply pipe, then hot melt welding.
By adopting the technical scheme, the invention comprises a connecting piece body and a water supply pipeline used for hot melting connection of two ends, wherein the connecting piece body consists of a circular ring-shaped positioning piece and a middle body, the circular ring-shaped positioning piece is matched with the end surface of the water supply pipeline, the end surface of the middle body is matched with the circular ring-shaped positioning piece, the coaxiality of the circular ring-shaped positioning piece and the middle body when fixedly connected is ensured to be within an allowable range, the middle body can be in a single-pass shape, a three-pass shape, a four-pass shape or a 90-degree elbow shape, the invention is a single-pass middle body, namely a straight cylinder shape, and has the same inner diameter, outer diameter and wall thickness with the water supply pipeline, grooves are uniformly and annularly distributed on one end surface of the circular ring-shaped positioning piece, four grooves are preferably distributed, the four grooves are distributed in a cross shape by taking the circle center of the circular ring-shaped positioning piece as the center, the four grooves are all circular, and the number of the grooves can influence the self pressure resistance of the water supply pipeline, the bottom of the groove is communicated with a positioning hole which penetrates through the side wall of the annular positioning piece, the penetrating direction is along the length direction of the water supply pipeline, a positioning rod is inserted into the positioning hole, the positioning rod is made of stainless steel, the stainless steel effectively prevents the positioning rod from being corroded and rusted, and influences various performances of the water supply pipeline and the connecting piece body, the positioning rod and the positioning hole are in interference fit and are not easy to loosen, so that the verticality of the positioning rod and the end face of the annular positioning piece can be ensured, the coaxiality of the positioning rod and the water supply pipeline in the later period is ensured, one end of the positioning rod is fixedly provided with a stop block matched with the groove, the stop block is directly clamped into the groove to limit the displacement of the positioning rod and slides out of the positioning hole, the tensile capacity of the water supply pipeline and the connecting piece body in the later period is enhanced, the other end of the positioning rod extends to the outside the end face of the annular positioning piece, and the end of the annular positioning piece provided with the groove is in hot melt welding with the connecting piece body, when the water supply pipe connection installation, because the water supply pipe leaves the factory in advance, be equipped with the constant head tank corresponding with the locating lever at water supply pipe both ends face, the locating lever disect insertion is corresponding in the corresponding constant head tank, because the terminal surface phase-match of water supply pipe terminal surface and connecting piece body, the position of locating lever and constant head tank is corresponding, just can effectively improve the axiality of both ends water supply pipe when connecting, then with connecting piece body and water supply pipe kneck hot melt welding, under the effect of external force, when the earthquake takes place, water supply pipe length is very long, when the water supply pipe is disturbed by external force, can be to shearing force of water supply pipe junction effect, because the inside effect that has the locating lever of junction, the shearing resistance of junction has been strengthened, water supply pipe is difficult for breaking or the crack at the junction like this, solve unnecessary potential safety hazard.
Further, as a preferred technical scheme, a cavity is arranged in the positioning rod, and a heating resistance wire is arranged in the cavity.
Owing to adopt above-mentioned technical scheme, the locating lever is the cavity setting, and inside is equipped with a cavity, has placed the heating resistor silk in the cavity, is connected with positive pole wire and negative pole wire on the heating resistor silk for connect external power source, make the locating lever generate heat, it is easier when inserting the constant head tank on the water supply pipe, polyethylene in the constant head tank on the hot melt water supply pipe, it is higher with the locating lever laminating degree after the cooling, reinforcing locating lever and water supply pipe's firm in connection.
Further, as a preferred technical scheme, a wire groove is formed between the inner surface and the outer surface of the intermediate body, a socket groove is formed in the middle of the intermediate body, a cathode column and an anode column are arranged at the bottom of the socket groove, the anode column is connected with an anode lead of the heating resistance wire, and the cathode column is connected with a cathode lead of the heating resistance wire.
By adopting the technical scheme, the wire groove is arranged between the inner surface and the outer surface of the intermediate body, namely the wire groove is positioned inside the annular wall of the intermediate body, the socket groove is arranged in the middle of the surface of the intermediate body and used for inserting an external power plug in the later period, the anode column and the cathode column are arranged in the socket groove and are respectively connected with the anode lead and the cathode lead in the wire groove, and the 220V power plug is inserted into the socket groove and used for supplying power required by heating of the heating resistance wire.
Further, as a preferred technical scheme, the surface of the positioning rod is provided with a spiral groove, and the spiral groove is filled with filler made of the same material as the water supply pipeline.
Owing to adopt above-mentioned technical scheme, the surface of locating lever is equipped with spiral groove, the spiral groove intussuseption is filled with the filler with the same material of water supply pipe, the filler is the polyethylene, back in the constant head tank on the locating lever inserts the water supply pipe, the switch on, the locating lever heaies up, melt the polyethylene in surface and the constant head tank, it is as an organic whole to make the locating lever bond for water supply pipe, the polyethylene after melting in the constant head tank of water supply pipe bonds the spiral groove again, be equivalent to locating lever and constant head tank formation threaded connection, reinforcing and water supply pipe's fastness, reinforcing tensile strength and shear strength, make the junction be difficult to the emergence fracture or crack.
Further, as a preferred technical scheme, the skin hot melting point of the anode lead and the cathode lead is higher than the hot melting point of the water supply pipeline and the connecting piece body.
By adopting the technical scheme, the hot melting point of the surface skin of the anode lead and the cathode lead is higher than that of the water supply pipeline and the connecting body, so that in the later stage of hot melting welding of the water supply pipeline and the connecting body, the surface skin of the lead can not melt before the water supply pipeline and the connecting body, and the lead is protected.
Further, as a preferred technical solution, the socket groove is filled with polyethylene in a high temperature state.
By adopting the technical scheme, after the connecting piece body and the water supply pipeline are welded in a hot melting mode, the socket groove is filled with polyethylene in a high-temperature state and is filled with the polyethylene.
The invention has the following beneficial effects:
1. when the water supply pipeline is connected and installed, because the water supply pipeline leaves factory in advance, the two end faces of the water supply pipeline are provided with positioning grooves corresponding to the positioning rods, the positioning rods are directly inserted into the corresponding positioning grooves, because the end surface of the water supply pipeline is matched with the end surface of the connecting piece body, the positions of the positioning rod and the positioning groove are corresponding, the coaxiality of the water supply pipelines at two ends can be effectively improved during connection, then the connector body and the water supply pipeline interface are welded by hot melting, when external force is applied, such as earthquake, the length of the water supply pipeline is very long, when the water supply pipeline is disturbed by external force, a shearing force acts on the joint of the water supply pipeline, because the inside effect that has the locating lever of junction, strengthened the ability of shearing of junction, the difficult fracture or the crack of taking place of water supply line in the junction like this can not cause the waste of water resource, solves unnecessary potential safety hazard.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a plan view of a circular ring-shaped spacer;
fig. 3 is a cross-sectional view of fig. 2.
Reference numerals: 1-connector body, 2-intermediate, 3-circular positioning piece, 4-positioning rod, 401-heating resistance wire, 402-spiral groove, 403-polyethylene, 404-anode wire, 405-cathode wire, 406-stop block, 5-positioning groove, 6-socket groove, 7-anode pole, 8-cathode pole, 9-wire groove, 10-water supply pipeline, 11-groove and 12-positioning hole.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", and the like indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, or that are conventionally placed when the product of the present invention is used, and are used only for convenience in describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "open," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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
The utility model provides a water supply pipe's location connecting device that shears, includes this 1 and the water supply pipe 10 at both ends of connecting piece, connecting piece body 1 is including the ring shape setting element 3 that is located 1 both ends of connecting piece body and the midbody 2 between two ring shape setting elements 3, ring shape setting element 3 terminal surface last annular evenly distributed has recess 11, recess 11 bottom is equipped with locating hole 12 and runs through the lateral wall of ring shape setting element 3, alternate locating lever 4 with locating hole 12 matching in the locating hole 12, 4 one ends of locating lever are equipped with the dog 406 that matches with recess 11, and the 4 other ends of locating lever extend to locating hole 12 outside, and ring shape setting element 3 is hot melt welding between recess 11 end and the connecting piece body 1, and during the installation, locating lever 4 inserts in the last corresponding constant head tank 5 of water supply pipe 10, then hot melt welding.
Specifically, as shown in fig. 1-3, the invention includes a connecting piece body 1, a water supply pipe 10 for hot-melting connecting two ends, the connecting piece body 1 is composed of a circular ring-shaped positioning piece 3 and an intermediate body 2, the circular ring-shaped positioning piece 3 is matched with the end surface of the water supply pipe 10, the end surface of the intermediate body 2 is matched with the circular ring-shaped positioning piece 3, the coaxiality of the circular ring-shaped positioning piece 3 and the intermediate body 2 is ensured to be within an allowable range when fixedly connecting, the intermediate body 2 can be in a single-pass, three-pass, four-pass or 90-degree elbow shape, the invention is the single-pass intermediate body 2, namely a straight cylinder shape, the inner diameter, the outer diameter and the wall thickness of the water supply pipe 10 are the same, grooves 11 are uniformly and annularly distributed on one end surface of the circular ring-shaped positioning piece 3, four grooves 11 are preferably distributed, the four grooves 11 are distributed in a cross shape with the center of the circular ring-shaped positioning piece 3 as the center, the four grooves 11 are all circular, the anti-pressure capability of the water supply pipeline 10 is affected by the excessive quantity of the grooves 11, the bottom of each groove 11 is communicated with a positioning hole 12 penetrating through the side wall of the annular positioning piece 3, the penetrating direction is along the length direction of the water supply pipeline 10, a positioning rod 4 is inserted into each positioning hole 12, each positioning rod 4 is made of stainless steel, the stainless steel effectively prevents the positioning rod from being corroded and rusted, various performances of the water supply pipeline 10 and the connecting piece body 1 are affected, the positioning rod 4 and the positioning holes 12 are in interference fit and not easy to loosen, so that the verticality of the end faces of the positioning rod 4 and the annular positioning piece 3 can be ensured, the coaxiality of the water supply pipeline 10 in the later period is ensured, one end of each positioning rod 4 is fixed with a stop block 406 matched with the groove 11, the stop blocks 406 are directly clamped into the grooves 11, the displacement of the positioning rod 4 is limited, the positioning holes 12 slide out, and the tensile capability of the water supply pipeline 10 and the connecting piece body 1 in the later period is enhanced, the other end of the locating rod 4 extends to the outside of the end face of the circular locating piece 3, one end of the circular locating piece 3 provided with the groove 11 is welded with the connecting piece body 1 in a hot melting way, when the water supply pipeline 10 is connected and installed, because the water supply pipeline 10 leaves factory in advance, locating grooves 5 corresponding to the locating rod 4 are arranged on the two end faces of the water supply pipeline 10, the locating rod 4 is directly inserted into the corresponding locating groove 5, because the end face of the water supply pipeline 10 is matched with the end face of the connecting piece body 1, and the locating rod 4 and the locating groove 5 are corresponding in position, the coaxiality of the water supply pipeline 10 at the two ends can be effectively improved when in connection, then the connecting piece body 1 is welded with the interface of the water supply pipeline 10 in a hot melting way, when external force is applied, when an earthquake occurs, the length of the water supply pipeline 10 is very long, when the water supply pipeline 10 is disturbed by external force, a shearing force is applied to the joint of the water supply pipeline 10, because the inside effect that has locating lever 4 of junction, strengthened the ability of shearing of junction, the difficult fracture or the crack of taking place of feed water pipe 10 in the junction just is difficult for taking place the drinking water and leaking like this, can not cause the wasting of resources, solves unnecessary potential safety hazard.
Example 2
A cavity is arranged in the positioning rod 4, and a heating resistance wire 401 is arranged in the cavity.
Specifically, as shown in fig. 1 and 3, the locating lever 4 is a hollow setting, a cavity is arranged inside, a heating resistor wire 401 is placed in the cavity, an anode wire 404 and a cathode wire 405 are connected to the heating resistor wire 401, and are used for connecting an external power supply, so that the locating lever 4 generates heat, when the locating slot 5 on the water supply pipeline 10 is inserted, the polyethylene in the locating slot 5 on the hot-melting water supply pipeline 10 is higher in laminating degree with the locating lever 4 after cooling, and the connecting firmness of the locating lever 4 and the water supply pipeline 10 is enhanced.
On the basis of the above embodiment, a wire groove 9 is arranged between the inner surface and the outer surface of the intermediate body 2, a socket groove 6 is arranged at the middle position of the intermediate body 2, a cathode pillar 8 and an anode pillar 7 are arranged at the bottom of the socket groove 6, the anode pillar 7 is connected with an anode lead 404 of the heating resistance wire 401, and the cathode pillar 8 is connected with a cathode lead 405 of the heating resistance wire 401.
Specifically, be equipped with wire casing 9 between the internal surface of midbody 2 and the surface, be located midbody 2's annular wall inside promptly, be equipped with socket 6 in the middle part position on midbody 2 surface for later stage external power plug inserts, be equipped with positive pole post 7 and negative pole post 8 in the socket 6, positive pole post 7 and negative pole post 8 are connected with positive pole wire 404 and negative pole wire 405 in the wire casing 9 respectively, 220V power plug inserts in the socket 6, be used for supplying the required power of generating heat of resistance wire 401.
In addition to the above embodiments, the positioning rod 4 has a spiral groove 402 on the surface thereof, and the spiral groove 402 is filled with a filler made of the same material as the water supply pipe 10.
Specifically, the surface of locating lever 4 is equipped with spiral groove 402, spiral groove 402 is filled with the filler with the same material of water supply pipe 10, the filler is polyethylene 403, insert back in the constant head tank 5 on the water supply pipe 10 at locating lever 4, switch on, locating lever 4 heaies up, melt polyethylene 403 in surface and the constant head tank 5, it is as an organic whole to make locating lever 4 bond for water supply pipe 10, polyethylene 403 after melting in the constant head tank 5 of water supply pipe 10 bonds spiral groove 402 again, be equivalent to locating lever 4 and constant head tank 5 formation threaded connection, reinforcing and water supply pipe 10's fastness, reinforcing tensile strength and shear strength, make the junction be difficult to breaking or crack.
Example 3
The skin thermal melting point of the anode lead 404 and the cathode lead 405 is higher than the thermal melting point of the water supply pipe 40 and the connector body 1.
Specifically, the hot melting point of the skin of the anode lead 404 and the cathode lead 405 is higher than the hot melting point of the water supply pipe 40 and the connector body 1, so that in the later stage of the hot melting welding mode of the water supply pipe 10 and the connector body 1, the skin of the lead is not melted with the connector body 1 before the water supply pipe 10, and the lead is protected.
Example 4
The socket groove 6 is filled with polyethylene 403 in a high temperature state.
Specifically, after the connector body 1 and the water supply pipe 10 are welded by hot melting, the socket groove 6 is filled with polyethylene 403 in a high temperature state, and the socket groove 6 is filled with the polyethylene 403.
The foregoing is only a preferred embodiment of the present invention, and the present invention is not limited thereto in any way, and any simple modification, equivalent replacement and improvement made to the above embodiment within the spirit and principle of the present invention still fall within the protection scope of the present invention.
Claims (4)
1. The utility model provides a water supply pipe's location connecting device that shears, includes water supply pipe (10) at connecting piece body (1) and both ends, its characterized in that, connecting piece body (1) is including ring shape setting element (3) that are located connecting piece body (1) both ends and intermediate (2) between two ring shape setting element (3), annular evenly distributed recess (11) on ring shape setting element (3) terminal surface, recess (11) bottom is equipped with locating hole (12) and runs through the lateral wall of ring shape setting element (3), locating lever (4) that match with locating hole (12) are alternate in locating hole (12), and locating lever (4) one end is equipped with dog (406) that match with recess (11), and locating lever (4) other end extends to locating hole (12) outside, and hot melt welding between ring shape setting element (3) recess (11) end and connecting piece body (1), during installation, locating lever (4) insert in last corresponding constant head tank (5) of water supply pipe (10), then hot melt welding, connecting piece body (1) and water supply pipe (10) kneck hot melt welding, be equipped with the cavity in locating lever (4), be equipped with heating resistor silk (401) in the cavity, locating lever (4) surface is equipped with spiral groove (402), and spiral groove (402) intussuseption is filled with the filler of the same material with water supply pipe (10), and the filler is polyethylene (403).
2. The shearing-resistant positioning and connecting device for the water supply pipeline is characterized in that a wire groove (9) is formed between the inner surface and the outer surface of the intermediate body (2), a socket groove (6) is formed in the middle of the intermediate body (2), a cathode column (8) and an anode column (7) are arranged at the bottom of the socket groove (6), the anode column (7) is connected with an anode lead (404) of the heating resistance wire (401), and the cathode column (8) is connected with a cathode lead (405) of the heating resistance wire (401).
3. A shear-resistant locating connection for a water supply pipe according to claim 2, characterised in that the sheath thermal melting point of the anode lead (404) and cathode lead (405) is higher than the thermal melting point of the water supply pipe (10) and connector body (1).
4. Shear-resistant positioning connection device for water supply pipes according to claim 2, characterized in that the socket groove (6) is filled with polyethylene (403) in a high temperature state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911015989.2A CN110701410B (en) | 2019-10-24 | 2019-10-24 | Shear-resistant positioning connecting device for water supply pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911015989.2A CN110701410B (en) | 2019-10-24 | 2019-10-24 | Shear-resistant positioning connecting device for water supply pipeline |
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| Publication Number | Publication Date |
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| CN110701410A CN110701410A (en) | 2020-01-17 |
| CN110701410B true CN110701410B (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911015989.2A Active CN110701410B (en) | 2019-10-24 | 2019-10-24 | Shear-resistant positioning connecting device for water supply pipeline |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765316B (en) * | 2020-06-24 | 2021-04-13 | 山东鑫隆管业有限公司 | Reinforcing device and reinforcing method for antibacterial water pipe joint |
| CN112128479B (en) * | 2020-09-23 | 2022-09-30 | 昆山市天工建设工程有限公司 | Hot-melt extrusion welding composite heat-shrinkable belt connecting HDPE pipe and construction method thereof |
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| CH690246A5 (en) * | 1996-03-27 | 2000-06-15 | Fischer Georg Rohrleitung | Electrical butt welding of plastic pipes by inserting an electrical heating mat into a chamber in the pipe ends |
| CN101251217A (en) * | 2007-12-18 | 2008-08-27 | 北京航天凯撒国际投资管理有限公司 | Hot melt spigot-and-socket special pipe fittings for metallic plastic-lining pipe |
| CN102345779A (en) * | 2011-10-28 | 2012-02-08 | 王崇高 | Socket and spigot joint plastic water pipe fitting |
| CN103383044A (en) * | 2013-08-06 | 2013-11-06 | 天津军星管业集团有限公司 | Electromagnetic heating welding method for thermoplastic pipes |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2217488A1 (en) * | 1972-04-12 | 1973-10-31 | Laudon Kg | Pipe connection - with sleeve surrounding pipe ends |
| DE102006010164B4 (en) * | 2006-03-06 | 2010-02-04 | Festo Ag & Co. Kg | Multiple clutch device |
| CN207486278U (en) * | 2017-11-21 | 2018-06-12 | 中国水利水电建设工程咨询渤海公司 | A kind of hydraulic engineering assembling pipe joint |
| CN209026377U (en) * | 2018-08-09 | 2019-06-25 | 浙江伟星新型建材股份有限公司 | Electric melting pipe fittings are routed after a kind of segmented |
| CN110360401B (en) * | 2019-04-25 | 2021-06-18 | 优捷特环保科技有限公司 | Side-connected column type electric melting pipe fitting |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CH690246A5 (en) * | 1996-03-27 | 2000-06-15 | Fischer Georg Rohrleitung | Electrical butt welding of plastic pipes by inserting an electrical heating mat into a chamber in the pipe ends |
| CN101251217A (en) * | 2007-12-18 | 2008-08-27 | 北京航天凯撒国际投资管理有限公司 | Hot melt spigot-and-socket special pipe fittings for metallic plastic-lining pipe |
| CN102345779A (en) * | 2011-10-28 | 2012-02-08 | 王崇高 | Socket and spigot joint plastic water pipe fitting |
| CN103383044A (en) * | 2013-08-06 | 2013-11-06 | 天津军星管业集团有限公司 | Electromagnetic heating welding method for thermoplastic pipes |
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| CN110701410A (en) | 2020-01-17 |
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Denomination of invention: A shear resistance positioning connection device for water supply pipeline Effective date of registration: 20220627 Granted publication date: 20220218 Pledgee: Hefei SME financing Company limited by guarantee Pledgor: ANHUI GUODENG PIPE INDUSTRY TECHNOLOGY Co.,Ltd. Registration number: Y2022980008937 |