CN111536355B - Plug-in type PPR plastic pipe fitting - Google Patents
Plug-in type PPR plastic pipe fitting Download PDFInfo
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- CN111536355B CN111536355B CN202010397330.4A CN202010397330A CN111536355B CN 111536355 B CN111536355 B CN 111536355B CN 202010397330 A CN202010397330 A CN 202010397330A CN 111536355 B CN111536355 B CN 111536355B
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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
- F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
- F16L47/08—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket
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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
- F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
- F16L47/12—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with additional locking means
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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
- F16L47/14—Flanged joints
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints With Sleeves (AREA)
Abstract
The invention relates to a plug-in PPR (polypropylene random) plastic pipe fitting, which comprises a pipe fitting I, a plug connector and a pipe fitting II, wherein the plug connector is arranged on the right side of the pipe fitting I, the pipe fitting II is arranged on the right side of the plug connector, and the plug connector comprises a circular thick plate I, a connecting ring, a circular thick plate II, a sealing ring, a steel wire rope and a fastening piece.
Description
Technical Field
The invention relates to the field of pipe fitting processing, in particular to a plug-in PPR plastic pipe fitting.
Background
The PPR pipe is also called a random copolymerization polypropylene pipe, which is a water supply pipeline most adopted in home decoration engineering, and compared with the traditional cast iron pipe, galvanized steel pipe, cement pipe and other pipelines, the PPR pipe has the advantages of energy conservation, material saving, environmental protection, light weight, high strength, corrosion resistance, smooth inner wall, no scaling, simple and convenient construction and maintenance, long service life and the like, so the PPR pipe is widely applied to the building industry, municipal administration, industry and agriculture fields, such as building water supply and drainage, urban and rural water supply and drainage, urban gas, electric power and optical cable sheath, industrial fluid transportation, agricultural irrigation and the like.
In the process of connecting and installing the PPR, due to the structural limitation of the pipe fitting, the following problems exist in the actual operation process:
(1) generally, when the pipe fittings are connected and installed, the surface of the pipe fittings is smooth, so that the pipe fittings are easy to slide in the installation process, and the installation efficiency of the pipe fittings is affected.
(2) Generally when connecting the installation to the pipe fitting, the pipe fitting is after the connection of aliging, and the pipe fitting is because only fix at the kneck, very easily leads to the pipe fitting to produce crooked, and the pipe fitting kneck gap easily grow simultaneously.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides a plug-in PPR plastic pipe fitting.
The technical scheme adopted by the invention to solve the technical problem is as follows: a plug-in PPR plastic pipe fitting comprises a pipe fitting I, a plug connector and a pipe fitting II, wherein the plug connector is mounted on the right side of the pipe fitting I, and the pipe fitting II is mounted on the right side of the plug connector; wherein:
the plug connector comprises a first circular thick plate, a connecting ring, a second circular thick plate, a sealing ring, a steel wire rope and a fastener, wherein the first circular thick plate is clamped at the right end of the pipe fitting, an arc-shaped key groove is uniformly formed in the inner surface of the first circular thick plate along the circumferential direction, the connecting ring is fixedly arranged at the right end of the first circular thick plate, the second circular thick plate is fixedly arranged at the right end of the connecting ring, the sealing ring is fixedly arranged at the inner side of the connecting ring, the steel wire rope is uniformly and fixedly arranged at the left end of the first circular thick plate and the right end of the second circular thick plate along the circumferential direction, and the tail end of the steel wire rope is fixedly connected with the fastener; the first pipe fitting and the second pipe fitting are limited through the first circular thick plate and the second circular thick plate respectively, the connecting ring is matched with the sealing ring, the joint of the first pipe fitting and the second pipe fitting is sealed, the first pipe fitting and the second pipe fitting are supported through the matching of the steel wire rope and the fastening piece, and meanwhile, the first pipe fitting and the second pipe fitting are limited and fixed, so that the first pipe fitting and the second pipe fitting are in further close contact.
The fastener comprises arc plates, a connecting plate, omega-shaped rings, bolts, rubber gaskets and nuts, the tail end of each steel wire rope is fixedly connected with the arc plates, the connecting plate is fixedly installed between the arc plates, the outer sides of the arc plates are connected with the omega-shaped rings in a sliding fit mode, the left side and the right side of the lower end of each omega-shaped ring are provided with threaded through holes, the bolts are connected in the threaded through holes in a threaded connection mode, the left side of each bolt is connected with the corresponding rubber gasket in a threaded connection mode, the left side of each rubber gasket is fixedly installed with the corresponding nut, and the inner side of each nut is connected with the left side of each bolt in a threaded connection mode; carry out the fixed stay to pipe fitting one and pipe fitting two through the arc, make in close contact with between pipe fitting one and the pipe fitting two, make through the connecting plate be in a perpendicular between the arc, give simultaneously and have certain adjustment space between the arc, fix pipe fitting one and pipe fitting two through omega shape ring, bolt and nut, it is locking to carry out between bolt and the nut through the rubber packing ring, fasten simultaneously between bolt and the nut and seal.
The arc-shaped plate comprises an annular plate, a rubber block, a cross-shaped block and a roller, the tail end of the steel wire rope is fixedly connected with the annular plate, the rubber block is fixedly arranged on the inner surface of the annular plate, the surface of the rubber block is rough, the cross-shaped block is uniformly and fixedly arranged on the outer side of the annular plate, the surface of the cross-shaped block is smooth, arc-shaped grooves are formed in the left side and the right side of the cross-shaped block, and the roller is arranged in the arc-shaped grooves through a pin shaft; the first pipe fitting and the second pipe fitting are compressed and fixed through the annular plate and the rubber block with the rough surface, the motion track of the annular plate is limited through the cross-shaped block, and the friction force between the annular plate and the omega-shaped ring is reduced through the cooperation of the cross-shaped block with the smooth surface and the roller.
As a preferred technical scheme of the invention, key grooves are uniformly formed in the right end of the first pipe fitting and the left end of the second pipe fitting along the circumferential direction, the key groove in the first pipe fitting is matched with the key groove in the second pipe fitting, and arc-shaped grooves matched with the arc-shaped key grooves in the first circular thick plate and the second circular thick plate are uniformly formed in the surfaces of the right side of the first pipe fitting and the left side of the second pipe fitting along the circumferential direction; the first pipe fitting and the second pipe fitting are positioned and connected through the key grooves at the right end of the first pipe fitting and the left end of the second pipe fitting, and the first pipe fitting and the second pipe fitting are positioned through the arc-shaped grooves in the first pipe fitting and the second pipe fitting so as to prevent the key grooves at the joint of the first pipe fitting and the second pipe fitting from being aligned and matched.
As a preferred technical scheme of the invention, arc-shaped grooves are uniformly formed in the arc-shaped key grooves on the left side of the first circular thick plate and the right side of the second circular thick plate, small springs are fixedly arranged in the arc-shaped grooves, arc-shaped circular plates are fixedly arranged at the tail ends of the small springs, balls are connected to concave surfaces of the arc-shaped circular plates in a sliding fit manner, and rubber thick plates are fixedly arranged in the arc-shaped key grooves on the right side of the first circular thick plate and the left side of the second circular thick plate; the small spring provides a reverse acting force for the arc circular plate, so that the arc circular plate drives the ball to be in close contact with the first pipe fitting and the second pipe fitting, friction between the first pipe fitting and the first circular ring thick plate and friction between the second pipe fitting and the second circular ring thick plate are reduced, the first pipe fitting and the second pipe fitting smoothly enter the first circular ring thick plate and the second circular ring thick plate respectively, and the first pipe fitting and the second pipe fitting are limited and fixed through the rubber thick plate.
According to a preferred technical scheme, the sealing ring comprises a rubber ring, a key groove strip, a spring and a rubber plate, the rubber ring is fixedly mounted on the inner side of the connecting ring, the key groove strip is uniformly and fixedly mounted on the inner side of the rubber ring along the circumferential direction, the cross-sectional area of the key groove strip is the same as that of key grooves in the first pipe fitting and the second pipe fitting, rectangular grooves are symmetrically formed in the front side and the rear side of the key groove strip, the spring is uniformly and fixedly mounted in each rectangular groove, and the rubber plate is fixedly mounted at the tail end of the spring; the first pipe fitting and the second pipe fitting are sealed through the rubber ring, the key groove strip is positioned and supported, the key groove strip, the spring and the rubber plate are matched, the rubber plate is in close contact with the first pipe fitting and the second pipe fitting, and the purpose of limiting and sealing the first pipe fitting and the second pipe fitting is further achieved.
As a preferred technical scheme of the invention, a small spring is fixedly arranged in the middle of the steel wire rope; give wire rope variability through little spring, tighten up the arc through omega shape ring, thereby when fixing pipe fitting one and pipe fitting two, the distance between the arc reduces, little spring extension gives wire rope certain deflection this moment, after fixing pipe fitting one and pipe fitting two, little spring produces a reaction force owing to receiving the extension, because ring thick plate one and go-between and ring thick plate two all with pipe fitting one, pipe fitting two location are connected, the reaction force pulling arc that little spring produced this moment moves to the go-between, thereby further make pipe fitting one and pipe fitting two in close contact with.
As a preferred technical scheme of the invention, the connecting plate comprises a fan-shaped cylinder block, fan-shaped blocks and special-shaped springs, the fan-shaped cylinder block is fixedly arranged on the front side and the rear side of an arc plate, the other end of the fan-shaped cylinder block is connected with the fan-shaped blocks in a sliding fit manner, one end of each fan-shaped block is fixedly connected with the special-shaped springs, the tail ends of the special-shaped springs are connected with the arc plate, the other ends of the fan-shaped blocks are connected with the fan-shaped cylinder block in a sliding fit manner, the fan-shaped cylinder block is connected with the fan-shaped blocks end to end, the upper side and the lower side of each adjacent fan-shaped block are fixedly connected with the special-shaped springs, the diameters of the special-shaped springs are unchanged, and the angles of the special-shaped springs are bent; the distance between the annular plates is controlled by matching the fan-shaped cylinder blocks with the fan-shaped blocks, and the motion trail of the fan-shaped blocks is limited by the special-shaped springs.
As a preferred technical scheme of the invention, the inside of the omega-shaped ring is uniformly provided with cross-shaped arc grooves along the circumferential direction, and the inner surfaces of the cross-shaped arc grooves are smooth; the motion range and the motion trail of the annular plate are limited by the uniformly arranged cross-shaped arc-shaped grooves, and the friction force between the annular plate and the omega-shaped ring is further reduced by the cross-shaped arc-shaped grooves with smooth inner surfaces.
Compared with the prior art, the invention has the following advantages:
1. the plug-in PPR plastic pipe fitting provided by the invention achieves the purpose of positioning the first pipe fitting and the second pipe fitting through the key groove formed at the interface of the first pipe fitting and the second pipe fitting and the arc-shaped groove formed in the surface of the first pipe fitting and the second pipe fitting, limits the direction in which the first pipe fitting and the second pipe fitting enter the plug connector to prevent the first pipe fitting and the second pipe fitting from sliding, seals the interface of the first pipe fitting and the second pipe fitting through the plug connector, and supports and compresses the left end and the right end of the first pipe fitting and the second pipe fitting simultaneously to enable the first pipe fitting and the second pipe fitting to be further in close contact.
2. According to the invention, the pipe fitting I and the pipe fitting II are pressed and fixed through the annular plate and the rubber block with the rough surface by the aid of the arranged plug, the motion track of the annular plate is limited through the cross-shaped block, and the friction force between the annular plate and the omega-shaped ring is reduced through the cooperation of the cross-shaped block with the smooth surface and the roller.
3. According to the invention, the pipe fitting I and the pipe fitting II are sealed through the rubber ring by the plug connector, the key groove strip is positioned and supported, and the rubber plate is tightly contacted with the pipe fitting I and the pipe fitting II through the matching of the key groove strip and the spring with the rubber plate, so that the purposes of limiting and sealing the pipe fitting I and the pipe fitting II are further achieved.
4. According to the invention, through the arranged plug, the small spring provides a variable quantity for the steel wire rope, when the omega-shaped ring tightens the arc-shaped plate so as to fix the pipe fitting I and the pipe fitting II, the distance between the arc-shaped plates is reduced, at the moment, the small spring extends to provide a certain deformation quantity for the steel wire rope, after the pipe fitting I and the pipe fitting II are fixed, the small spring generates a reaction force due to stretching, and as the circular thick plate I, the connecting ring and the circular thick plate II are both positioned and connected with the pipe fitting I and the pipe fitting II, the reaction force generated by the small spring pulls the arc-shaped plate to move towards the connecting ring, so that the pipe fitting I and the pipe fitting II are further in close contact.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic plan view of the present invention in front elevation;
FIG. 2 is a front cross-sectional plan view of the present invention;
FIG. 3 is a schematic plan view of the seal ring of the present invention;
FIG. 4 is a schematic plan view of the fastener of the present invention;
FIG. 5 is a schematic plan view of an arcuate plate of the present invention;
FIG. 6 is a schematic plan view of the annular thick plate and the seal ring of the present invention.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained with reference to fig. 1 to 6.
A plug-in PPR plastic pipe fitting comprises a pipe fitting I1, a plug-in connector 2 and a pipe fitting II 3, wherein the plug-in connector 2 is installed on the right side of the pipe fitting I1, and the pipe fitting II 3 is installed on the right side of the plug-in connector 2; wherein:
the plug connector 2 comprises a first circular thick plate 21, a connecting ring 22, a second circular thick plate 23, a sealing ring 24, a steel wire rope 25 and a fastener 26, the first circular thick plate 21 is clamped at the right end of the pipe fitting 1, arc-shaped key grooves are uniformly formed in the inner surface of the first circular thick plate 21 along the circumferential direction, the connecting ring 22 is fixedly installed at the right end of the first circular thick plate 21, the second circular thick plate 23 is fixedly installed at the right end of the connecting ring 22, the sealing ring 24 is fixedly installed on the inner side of the connecting ring 22, the steel wire rope 25 is uniformly and fixedly installed at the left end of the first circular thick plate 21 and the right end of the second circular thick plate 23 along the circumferential direction, and the tail end of the steel wire rope 25 is fixedly connected with the fastener 26;
arc-shaped grooves are uniformly formed in the arc-shaped key grooves on the left side of the first circular thick plate 21 and the right side of the second circular thick plate 23, small springs are fixedly arranged in the arc-shaped grooves, arc-shaped circular plates are fixedly arranged at the tail ends of the small springs, the concave surfaces of the arc-shaped circular plates are connected with balls in a sliding fit mode, and rubber thick plates are fixedly arranged in the arc-shaped key grooves on the right side of the first circular thick plate 21 and the left side of the second circular thick plate 23;
the sealing ring 24 comprises a rubber ring 241, a key groove strip 242, a spring 243 and a rubber plate 244, the rubber ring 241 is fixedly installed on the inner side of the connecting ring 22, the key groove strip 242 is uniformly and fixedly installed on the inner side of the rubber ring 241 along the circumferential direction, the cross-sectional area of the key groove strip 242 is the same as that of the key grooves on the first pipe fitting 1 and the second pipe fitting 3, rectangular grooves are symmetrically formed in the front side and the rear side of the key groove strip 242, the spring 243 is uniformly and fixedly installed in the rectangular grooves, and the rubber plate 244 is fixedly installed at the tail end of the spring 243;
a small spring is fixedly arranged in the middle of the steel wire rope 25;
the fastening piece 26 comprises arc-shaped plates 261, connecting plates 262, omega-shaped rings 263, bolts 264, rubber washers 265 and nuts 266, the tail end of each steel wire rope 25 is fixedly connected with the arc-shaped plates 261, the connecting plates 262 are fixedly installed between the arc-shaped plates 261, the outer sides of the arc-shaped plates 261 are connected with the omega-shaped rings 263 in a sliding fit mode, the left sides and the right sides of the lower ends of the omega-shaped rings 263 are respectively provided with threaded through holes, the bolts 264 are connected in the threaded through holes in a threaded connection mode, the left sides of the bolts 264 are connected with the rubber washers 265 in a threaded connection mode, the left sides of the rubber washers 265 are fixedly installed with the nuts 266, and the inner sides of the nuts 266 are connected with the left sides of the bolts 264 in a threaded connection mode;
the arc-shaped plate 261 comprises an annular plate 2611, a rubber block 2612, a cross-shaped block 2613 and rollers 2614, the tail end of the steel wire rope 25 is fixedly connected with the annular plate 2611, the rubber block 2612 is fixedly installed on the inner surface of the annular plate 2611, the surface of the rubber block 2612 is rough, the cross-shaped block 2613 is uniformly and fixedly installed on the outer side of the annular plate 2611, the surface of the cross-shaped block 2613 is smooth, arc-shaped grooves are formed in the left side and the right side of the cross-shaped block 2613, and the rollers 2614 are installed in the arc-shaped grooves through pin shafts;
the connecting plate 262 comprises fan-shaped cylinder blocks 2621, fan-shaped blocks 2622 and special-shaped springs 2623, the fan-shaped cylinder blocks 2621 are fixedly mounted on the front side and the rear side of the arc-shaped plate 261 respectively, the other end of the fan-shaped cylinder block 2621 is connected with the fan-shaped blocks 2622 in a sliding fit manner, one ends of the fan-shaped blocks 2622 are fixedly connected with the special-shaped springs 2623, the tail ends of the special-shaped springs 2623 are connected with the arc-shaped plate 261, the other end of the fan-shaped block 2622 is connected with the fan-shaped cylinder blocks 2621 in a sliding fit manner, the fan-shaped cylinder blocks 2621 are connected with the fan-shaped blocks 2622 end to end, the special-shaped springs 2623 are fixedly connected to the upper side and the lower side of the adjacent fan-shaped blocks 2622, the diameter of the special-shaped springs 2623 is unchanged, and the angle is bent;
cross-shaped arc grooves are uniformly formed in the omega-shaped ring 263 along the circumferential direction, and the inner surfaces of the cross-shaped arc grooves are smooth;
the first pipe fitting 1 and the second pipe fitting 3 are limited through the first annular thick plate 21 and the second annular thick plate 23 respectively, the connecting ring 22 is matched with the sealing ring 24 to seal the joint of the first pipe fitting 1 and the second pipe fitting 3, the first pipe fitting 1 and the second pipe fitting 3 are supported through the matching of the steel wire rope 25 and the fastening piece 26, and meanwhile, the first pipe fitting 1 and the second pipe fitting 3 are further limited and fixed to further enable the first pipe fitting 1 and the second pipe fitting 3 to be in close contact;
the small spring provides a reverse acting force to the arc circular plate, so that the arc circular plate drives the ball to be in close contact with the pipe fitting I1 and the pipe fitting II 3, the friction force between the pipe fitting I1 and the circular ring thick plate I21 and between the pipe fitting II 3 and the circular ring thick plate II 23 is reduced, the pipe fitting I1 and the pipe fitting II 3 smoothly enter the circular ring thick plate I21 and the circular ring thick plate II 23 respectively, and the pipe fitting I1 and the pipe fitting II 3 are limited and fixed through the rubber thick plate;
the first pipe fitting 1 and the second pipe fitting 3 are sealed through the rubber ring 241, the key groove strip 242 is positioned and supported, and the key groove strip 242, the spring 243 and the rubber plate 244 are matched to enable the rubber plate 244 to be in close contact with the first pipe fitting 1 and the second pipe fitting 3, so that the purposes of limiting and sealing the first pipe fitting 1 and the second pipe fitting 3 are further achieved;
the variable quantity is given to the steel wire rope 25 through the small spring, when the arc-shaped plate 261 is tightened through the omega-shaped ring 263, so that the pipe fitting I1 and the pipe fitting II 3 are fixed, the distance between the arc-shaped plates 261 is reduced, the small spring extends to give a certain deformation quantity to the steel wire rope 25, after the pipe fitting I1 and the pipe fitting II 3 are fixed, the small spring generates a reaction force due to stretching, and the ring thick plate I21, the connecting ring 22 and the ring thick plate II 23 are both connected with the pipe fitting I1 and the pipe fitting II 3 in a positioning mode, and the reaction force generated by the small spring pulls the arc-shaped plate 261 to move towards the connecting ring 22, so that the pipe fitting I1 is further in close contact with the pipe fitting II 3;
the pipe fitting I1 and the pipe fitting II 3 are fixedly supported through the arc-shaped plates 261, so that the pipe fitting I1 and the pipe fitting II 3 are in close contact, a vertical plane is formed between the arc-shaped plates 261 through the connecting plates 262, a certain adjusting space is formed between the arc-shaped plates 261, the pipe fitting I1 and the pipe fitting II 3 are fixed through the omega-shaped rings 263, the bolts 264 and the nuts 266 are prevented from loosening through the rubber gaskets 265, and meanwhile, the bolts 264 and the nuts 266 are fastened and sealed;
the pipe fitting I1 and the pipe fitting II 3 are pressed and fixed through the annular plate 2611 and the rubber block 2612 with the rough surface, the motion track of the annular plate 2611 is limited through the cross-shaped block 2613, and the friction force between the annular plate 2611 and the omega-shaped ring 263 is reduced through the matching of the cross-shaped block 2613 with the smooth surface and the roller 2614;
the distance between the annular plates 2611 is controlled through the matching between the fan-shaped cylinder block 2621 and the fan-shaped block 2622, and the motion track of the fan-shaped block 2622 is limited through the special-shaped spring 2623;
the movement range and the movement track of the annular plate 2611 are limited by the uniformly opened cross-shaped arc-shaped grooves, and the friction force between the annular plate 2611 and the omega-shaped ring 263 is further reduced by the cross-shaped arc-shaped grooves with smooth inner surfaces.
Key grooves are uniformly formed in the right end of the first pipe fitting 1 and the left end of the second pipe fitting 3 along the circumferential direction, the key grooves in the first pipe fitting 1 are matched with the key grooves in the second pipe fitting 3, and arc-shaped grooves matched with the arc-shaped key grooves in the first ring thick plate 21 and the second ring thick plate 23 are uniformly formed in the surfaces of the right side of the first pipe fitting 1 and the left side of the second pipe fitting 3 along the circumferential direction; the key grooves at the right end of the first pipe fitting 1 and the left end of the second pipe fitting 3 enable the first pipe fitting 1 and the second pipe fitting 3 to be connected in a positioning mode, the first pipe fitting 1 and the second pipe fitting 3 are positioned through the arc-shaped grooves in the first pipe fitting 1 and the second pipe fitting 3, and therefore the key grooves at the positions of the first pipe fitting 1 and the second pipe fitting 3 are prevented from being aligned and matched.
During the operation, the first annular thick plate 21 is inserted rightwards according to the arc-shaped groove on the surface of the first pipe fitting 1 until the arc-shaped groove on the first pipe fitting 1 contacts with the middle part of the key groove strip 242 on the connecting ring 22, the rubber plate 244 is in close contact with the arc-shaped groove on the first pipe fitting 1 under the action of the reaction force of the spring 243, the second annular thick plate 23 is inserted rightwards according to the arc-shaped groove on the surface of the second pipe fitting 3 until the key groove at the left end of the second pipe fitting 3 is connected and matched with the key groove at the right end of the first pipe fitting 1, the rubber plate 244 is in close contact with the arc-shaped groove on the second pipe fitting 3, the omega-shaped ring 263 is tightened by rotating the nut 266, the distance between the first fan-shaped cylinder block 2621 and the second fan-shaped block 2622 is reduced, the distance between the arc-shaped plates 261 is reduced until the arc-shaped plates 261 fix the first pipe fitting 1 and the second pipe fitting 3, the steel wire ropes 25 at the left and right sides respectively drive the first pipe fitting 1 and the second pipe fitting 3 to move towards the middle part under the action of the small spring, thereby further connecting and fixing the pipe fitting I1 and the pipe fitting II 3.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a cartridge formula PPR plastics pipe fitting, includes pipe fitting (1), bayonet joint (2) and pipe fitting two (3), its characterized in that: the right side of the pipe fitting I (1) is provided with a plug-in connector (2), and the right side of the plug-in connector (2) is provided with a pipe fitting II (3); wherein:
the connecting plug (2) comprises a first circular thick plate (21), a connecting ring (22), a second circular thick plate (23), a sealing ring (24), a steel wire rope (25) and a fastening piece (26), the first circular thick plate (21) is clamped at the right end of the pipe fitting (1), arc-shaped key grooves are uniformly formed in the inner surface of the first circular thick plate (21) along the circumferential direction, the connecting ring (22) is fixedly installed at the right end of the first circular thick plate (21), the second circular thick plate (23) is fixedly installed at the right end of the connecting ring (22), the sealing ring (24) is fixedly installed on the inner side of the connecting ring (22), the steel wire rope (25) is uniformly and fixedly installed at the left end of the first circular thick plate (21) and the right end of the second circular thick plate (23) along the circumferential direction, and the tail end of the steel wire rope (25) is fixedly connected with the fastening piece (26);
the fastening piece (26) comprises an arc-shaped plate (261), a connecting plate (262), an omega-shaped ring (263), a bolt (264), a rubber gasket (265) and a nut (266), the tail end of each steel wire rope (25) is fixedly connected with the arc-shaped plate (261), the connecting plate (262) is fixedly installed between the arc-shaped plates (261), the outer side of each arc-shaped plate (261) is connected with the omega-shaped ring (263) in a sliding fit mode, threaded through holes are formed in the left side and the right side of the lower end of each omega-shaped ring (263), the bolt (264) is connected in each threaded through hole in a threaded connection mode, the rubber gasket (265) is connected to the left side of the bolt (264) in a threaded connection mode, the nut (266) is fixedly installed on the left side of the rubber gasket (265), and the inner side of the nut (266) is connected with the left side of the bolt (264) in a threaded connection mode;
the arc-shaped plate (261) comprises an annular plate (2611), a rubber block (2612), a cross-shaped block (2613) and rollers (2614), the tail end of a steel wire rope (25) is fixedly connected with the annular plate (2611), the rubber block (2612) is fixedly installed on the inner surface of the annular plate (2611), the surface of the rubber block (2612) is rough, the cross-shaped block (2613) is uniformly and fixedly installed on the outer side of the annular plate (2611), the surface of the cross-shaped block (2613) is smooth, arc-shaped grooves are formed in the left side and the right side of the cross-shaped block (2613), and the rollers (2614) are installed in the arc-shaped grooves through pin shafts;
connecting plate (262) are including fan-shaped cylinder piece (2621), sector (2622) and contour spring (2623), the equal fixed mounting in both sides has fan-shaped cylinder piece (2621) around arc (261), the fan-shaped cylinder piece (2621) other end is connected with sector (2622) with sliding fit's mode, sector (2622) one end fixedly connected with contour spring (2623), contour spring (2623) is terminal to be connected with arc (261), sector (2622) other end is connected with sector (2621) with sliding fit's mode, end to end between sector (2621) and sector (2622), equal fixedly connected with contour spring (2623) in both sides about between adjacent sector (2622), contour spring (2623) diameter does not change, and the angle bending.
2. The plug-in type PPR plastic pipe fitting of claim 1, wherein: the right end of the first pipe fitting (1) and the left end of the second pipe fitting (3) are both provided with key grooves uniformly along the circumferential direction, the key grooves in the first pipe fitting (1) are matched with the key grooves in the second pipe fitting (3), and the right side of the first pipe fitting (1) and the left surface of the second pipe fitting (3) are respectively provided with arc-shaped grooves matched with the arc-shaped key grooves in the first ring thick plate (21) and the second ring thick plate (23) uniformly along the circumferential direction.
3. The plug-in type PPR plastic pipe fitting of claim 1, wherein: arc grooves are evenly formed in the arc key grooves in the left side of the first circular thick plate (21) and the right side of the second circular thick plate (23), small springs are fixedly arranged in the arc grooves, arc circular plates are fixedly arranged at the tail ends of the small springs, balls are connected to concave surfaces of the arc circular plates in a sliding fit mode, and rubber thick plates are fixedly arranged in the arc key grooves in the right side of the first circular thick plate (21) and the left side of the second circular thick plate (23).
4. The plug-in type PPR plastic pipe fitting of claim 1, wherein: the sealing ring (24) comprises a rubber ring (241), a key groove strip (242), a spring (243) and a rubber plate (244), the rubber ring (241) is fixedly mounted on the inner side of the connecting ring (22), the key groove strip (242) is uniformly and fixedly mounted on the inner side of the rubber ring (241) along the circumferential direction, the sectional area of the key groove strip (242) is the same as that of a key groove on the first pipe fitting (1) and the second pipe fitting (3), rectangular grooves are symmetrically formed in the front side and the rear side of the key groove strip (242), the spring (243) is uniformly and fixedly mounted in the rectangular grooves, and the rubber plate (244) is fixedly mounted at the tail end of the spring (243).
5. The plug-in type PPR plastic pipe fitting of claim 1, wherein: and a small spring is fixedly arranged in the middle of the steel wire rope (25).
6. The plug-in type PPR plastic pipe fitting of claim 1, wherein: the inside cross arc recess of evenly having seted up along circumference of omega shape ring (263), cross arc recess internal surface is smooth.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010397330.4A CN111536355B (en) | 2020-05-12 | 2020-05-12 | Plug-in type PPR plastic pipe fitting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010397330.4A CN111536355B (en) | 2020-05-12 | 2020-05-12 | Plug-in type PPR plastic pipe fitting |
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| CN111536355A CN111536355A (en) | 2020-08-14 |
| CN111536355B true CN111536355B (en) | 2021-12-17 |
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| CN202010397330.4A Active CN111536355B (en) | 2020-05-12 | 2020-05-12 | Plug-in type PPR plastic pipe fitting |
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| CN113858640B (en) * | 2021-10-22 | 2024-04-16 | 芜湖新磊塑胶科技有限公司 | Sectional plastic pipe and manufacturing method thereof |
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| CN111536355A (en) | 2020-08-14 |
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