CN113483176A - HDPE water supply pipe - Google Patents
HDPE water supply pipe Download PDFInfo
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- CN113483176A CN113483176A CN202110601867.2A CN202110601867A CN113483176A CN 113483176 A CN113483176 A CN 113483176A CN 202110601867 A CN202110601867 A CN 202110601867A CN 113483176 A CN113483176 A CN 113483176A
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- limiting plate
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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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
- F16F15/085—Use of both rubber and metal springs
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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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- 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
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/03—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube comprising two or more bellows
- F16L51/035—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube comprising two or more bellows for cancelling the axial loading resulting from fluid pressure
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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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
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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
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/005—Protection of pipes or objects of similar shape against external or internal damage or wear specially adapted for the ends of pipes
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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
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention relates to the technical field of water supply pipes, in particular to an HDPE water supply pipe, which comprises a pipeline body, wherein two ends of the pipeline body are respectively and fixedly connected with a stress buffering mechanism; the stress buffering mechanism comprises a flange connection plate, a first protection barrel, a mounting plate, a connecting pipe, a corrugated pipe, a second protection barrel, a pitting corrosion prevention mechanism, a first limiting plate, a second limiting plate, a ball and a rolling groove; the mounting plate is fixedly connected with the pipeline body through a connecting pipe. According to the invention, the corrugated pipes are arranged at the two ends of the pipeline body, so that the compensation of the deformation amount of the telescopic stress borne by the pipeline body can be realized, meanwhile, compared with a comparison patent, the corrugated pipes are prevented from being broken under a larger telescopic stress by arranging the first limiting plate and the second limiting plate, in addition, the protective cylinder is formed at the outer side of the corrugated pipes by the first limiting plate and the second limiting plate, so that the wear resistance and the shearing resistance which are reduced by the arrangement of the corrugated pipes can be improved, and the service life of the positions of the corrugated pipes is further prolonged.
Description
Technical Field
The invention relates to the technical field of water supply pipes, in particular to an HDPE water supply pipe.
Background
With economic development and social progress, environment-friendly products capable of saving resources are favored by people, in the field of building drainage, cast iron pipes and steel pipes are stably placed at the head for a long time in the past, at present, various novel plastic pipes begin to widely occupy the market with more excellent performance and lower price, and high-density polyethylene (HDPE) pipes which are practical, environment-friendly and safe are rapidly applied and developed, and pipes and pipe fittings made of HDPE materials have good ultraviolet resistance, good wear resistance, good low-temperature impact resistance, good chemical resistance and excellent silence performance.
In the journal of Water supply and drainage, the common faults and solutions of PE water supply pipe construction are recorded in a text that the coefficient of expansion with heat and contraction with cold of a PE pipeline is very large, and in addition, other external factors such as the fact that the pipeline is backfilled and not tamped layer by layer are added, so that the PE pipeline is easily pulled apart by cold contraction after being cooled at night when the temperature difference between day and night is large in hot seasons, and the solutions of the PE pipeline are that a telescopic device is not arranged or a double-disk short pipe is used to replace the telescopic device as far as possible, so that the telescopic device is not suitable for solving the problem that the pipeline is damaged by the stress of expansion with heat and contraction with cold of the PE pipeline, particularly an HDPE water supply pipe.
Chinese patent discloses a HDPE feedwater tubular product, and patent application number is CN201821307541.9, including pipeline body and protection device, pipeline body surface encircles and installs the ripple, fixed pipe is installed through the molding screw thread at pipeline body both ends, fixed pipe includes filter layer, screw ring, pressure ring and seal ring, the HDPE pipe is installed to the ripple inboard, the inner tube is installed through gluing agent connection to HDPE intraductal side, and divide into two-layerly inside and outside the inner tube, the inner tube inlayer is heat-resisting steel pipe, the inner tube skin is thermal-insulated pipe, the stop collar is installed through the fastener symmetry of impressing at HDPE intraductal upper and lower both ends, the locating piece is installed through the hot plate butt fusion in HDPE pipe left side, the backup pad is installed in the protection device outside.
The above-mentioned device is through setting up the ripple in the outside of pipeline, realize the problem of the resistant environmental stress fracture of tubular product, and make the pipeline still have better toughness, but it is not carrying out better solution to the expend with heat and contract with cold stress pull-cracking pipeline problem of HDPE feedwater tubular product self, because the contrast patent is through setting up the bellows at pipeline barrel itself, can make HDPE feedwater tubular product lose self wearability and anti-shear property, in the use, can cause the damage to the pipeline because various shearing forces and frictional force, the life of tubular product has been shortened, and simultaneously, under great day and night difference in temperature condition, when the deformation volume that its ripple compensation volume can't satisfy flexible stress needs, still there is the possibility of pull-cracking HDPE feedwater tubular product.
The device still has the problem of thermal expansion and cold contraction stress tension cracking of the pipeline, and the pipeline cannot be well protected.
Therefore, an HDPE water supply pipe is provided.
Disclosure of Invention
The invention aims to provide an HDPE water supply pipe to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the HDPE water supply pipe comprises a pipe body, wherein two ends of the pipe body are respectively and fixedly connected with a stress buffering mechanism;
the stress buffering mechanism comprises a flange connection disc, a first protection cylinder, a mounting plate, a connection pipe, a corrugated pipe, a second protection cylinder, a pitting corrosion prevention mechanism, a first limiting plate, a second limiting plate, a ball and a rolling groove; the mounting plate is fixedly connected with the pipeline body through a connecting pipe, a second protective cylinder is fixedly mounted at the edge position of the outer surface of one end of the mounting plate, a first limiting plate is fixedly mounted at the edge position of the outer circular surface of the second protective cylinder, and an anti-pitting mechanism is arranged at one end of the first limiting plate; the outer surface of one end of the mounting plate is close to the inner side of the second protective cylinder and is fixedly connected with a corrugated pipe; one end of the corrugated pipe is fixedly connected with a flange connecting disc; a first protective cylinder is fixedly arranged on the outer side position, close to the corrugated pipe, of the outer surface of one end of the flange connecting disc, a second limiting plate is fixedly arranged on the edge position of the inner circular surface of the first protective cylinder, and the first limiting plate and the second limiting plate are arranged in opposite directions and used for being clamped and limited mutually; the inner circular surface of the second limiting plate is annularly and fixedly provided with a plurality of groups of balls; the outer circle surface of the second protective cylinder is annular, and a plurality of rolling grooves are formed in positions corresponding to the rolling balls and used for reducing the friction coefficient between the second limiting plate and the second protective cylinder when the second limiting plate moves.
The invention aims at solving the problem that the HDPE water supply pipe material self expands with heat and contracts with cold and does not have better solution, because the comparison patent can cause the HDPE water supply pipe material to lose self wear resistance and shearing resistance by arranging the corrugated pipe on the barrel of the pipe, the pipe can be damaged by various shearing force and friction force in the using process, the service life of the pipe is shortened, meanwhile, under the condition of larger temperature difference between day and night, when the corrugation compensation quantity can not meet the deformation quantity required by the telescopic stress, the possibility of the HDPE water supply pipe material is still fractured, the invention can realize the compensation of the deformation quantity of the telescopic stress borne by the pipe body by the expansion and contraction of the corrugated pipe when the pipe body is subjected to the stress of expansion with heat and contraction with cold by arranging the corrugated pipes at the two ends of the pipe body, and solves the problem of the pipeline which is fractured by the stress of expansion with heat and contraction with cold, simultaneously, for the contrast patent, through setting up first limiting plate and second limiting plate, reach the limit at the bellows compensation, when the deformation volume that its ripple compensation volume can't satisfy flexible stress needs, first limiting plate and second limiting plate carry on spacingly through the mode of joint each other, prevent that the bellows from splitting under great flexible stress, in addition, form a protection section of thick bamboo in the bellows outside through first limiting plate and second limiting plate, can improve because set up the wearability and the anti-shear property that the bellows reduced, and then make the life of bellows position obtain improving.
Preferably, the pitting corrosion prevention mechanism comprises a mounting groove, a spring, a rubber buffer block and a reinforcing cylinder; the mounting groove is embedded in the edge position of one end of the first limiting plate; a spring is fixedly arranged in the mounting groove; one end of the spring extends out of the mounting groove and is fixedly provided with a rubber buffer block; the spring can drive the rubber buffer block to be accommodated in the mounting groove after being completely compressed; one end of the second limiting plate is fixedly provided with a reinforcing cylinder, and the cross section of the reinforcing cylinder is of a triangular structure.
During operation, especially under the great condition of the difference in temperature round the clock, the bellows is flexible repeatedly and is easily compensated the deformation volume that the thermal expansion shrinkage stress that the pipeline received, make first limiting plate and second limiting plate strike repeatedly when the laminating, long-time use forms the point corrosion easily at the contact position, and then destroy the structural strength of first limiting plate and second limiting plate, and then shorten stress buffer mechanism's life, through setting up the mounting groove, spring and rubber buffer block, when first limiting plate and second limiting plate laminate, can cushion the extrusion force through the spring, cooperation rubber buffer block makes first limiting plate and second limiting plate laminate slowly, and then solved the point corrosion effect because the striking brings, stress buffer mechanism's life has been prolonged.
Preferably, a sealing mechanism is fixedly connected between the second limiting plate and the first limiting plate; the sealing mechanism comprises an annular clamping groove, a sealing ring, a clamping cylinder, a first sealing ring and a second sealing ring; the annular clamping groove is embedded in the middle of the other end of the second limiting plate, and one end of the inner surface of the annular clamping groove is provided with a sealing groove; a clamping cylinder is fixedly arranged at a position, corresponding to the annular clamping groove, on the outer surface of one side of the first limiting plate, two sealing rings are symmetrically arranged on the inner and outer circular surfaces of the clamping cylinder, and the sealing rings can be matched with the sealing grooves to seal the first limiting plate and the second limiting plate; a first sealing ring is fixedly arranged at one end of the outer circular surface of the second limiting plate; and one end of the inner circular surface of the first limiting plate is fixedly provided with a second sealing ring.
After the bellows is used for a long time, because stretch out and draw back repeatedly, make the bellows produce fatigue fracture easily, and then cause the effluvium of rivers, cause economic loss simultaneously, through setting up sealing mechanism, after the fatigue fracture takes place at the bellows, because the shrink stress of pipeline body and the pressure of rivers, first limiting plate supports the laminating tightly each other with the second limiting plate, at this moment, the spring contracts completely, it is inside to drive rubber buffer block income mounting groove, make first sealing ring cooperation second sealing ring form primary seal, at the seal groove that sets up through ring groove inside, the sealing washer forms second step and seals, and then make after the bellows uses the fracture, the rivers can not let out through the clearance of first limiting plate and second limiting plate, and then economic loss has been avoided.
Preferably, the length ratio of the stress buffering mechanism to the pipeline body is as follows: 10:1, to ensure that the pipe body still has good bending performance of the HDPE pipe.
The during operation owing to set up stress buffer gear, can reduce the whole pipeline toughness that pipeline body and stress buffer gear formed, the installation of being not convenient for is laid, establishes through the length ratio with stress buffer gear and pipeline body: 10:1, the toughness of the whole pipeline is not greatly influenced, and the installation and the laying are convenient.
Preferably, a sheath is fixedly arranged on the outer surface of one end of the mounting plate at a position close to the outer side of the second casing; one end of the sheath is fixedly connected with the first protective cylinder; the sheath comprises a silica gel cloth layer, an elastic rubber cloth and a rubber asphalt waterproof coating layer; the elastic rubber cloth is fixedly connected with the outer surface of one end of the mounting plate, a silica gel cloth layer is fixedly mounted on the outer circular surface of the elastic rubber cloth, and a rubber asphalt waterproof coating layer is coated on the inner circular surface of the elastic rubber cloth.
The during operation, because the pipeline normally works underground, the hookup location of first limiting plate and second limiting plate is got into easily to ground end earth and grit, influence stress buffer mechanism's normal work, through setting up the sheath, can seal the hookup location of first limiting plate and second limiting plate, prevent the entering of ground end earth and grit, stress buffer mechanism's normal work has been guaranteed, and simultaneously, the sheath is by the rubberized fabric layer, elastic rubber cloth and rubber asphalt waterproof coating layer constitute, better pliability has, when can cooperate stress buffer mechanism work, still have better wearability and waterproof nature, the life of sheath has been prolonged.
Preferably, a connecting pipe is fixedly arranged at the edge of the outer surface of the other end of the mounting plate; the connecting pipe is HDPE material body with the pipeline body, and the connecting pipe equals with the pipeline body diameter, and both adopt hot melt butt joint to carry out fixed connection.
The during operation uses for a long time at the bellows and because fatigue fracture back, needs to change stress buffer gear, through at mounting panel other end surface border position fixed mounting have the connecting pipe, can lift old stress buffer gear off through the mode of cutting the connecting pipe, simultaneously, utilizes hot melt butt joint technique to carry out the hot melt butt joint to connecting pipe and the pipeline body of new stress buffer gear upper end, makes things convenient for stress buffer gear's change.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can lead the pipeline body to be expanded with heat and contracted with cold when the pipeline body is stressed with the stress of expansion with heat, the compensation of the deformation quantity of the telescopic stress borne by the pipeline body is realized through the expansion and contraction of the corrugated pipe, the problem that the HDPE water supply pipe material cracks the pipeline due to the expansion and contraction stress of the HDPE water supply pipe material is solved, meanwhile, compared with the comparison patent, the compensation of the corrugated pipe reaches the limit by arranging the first limit plate and the second limit plate, when the ripple compensation amount can not meet the deformation amount required by the telescopic stress, the first limit plate and the second limit plate are mutually limited in a clamping way, the corrugated pipe is prevented from being broken under the larger telescopic stress, in addition, a protective cylinder is formed outside the corrugated pipe through the first limiting plate and the second limiting plate, so that the abrasion resistance and the shearing resistance which are reduced due to the arrangement of the corrugated pipe can be improved, and the service life of the position of the corrugated pipe is prolonged.
2. According to the invention, through the arrangement of the mounting groove, the spring and the rubber buffer block, when the first limiting plate is attached to the second limiting plate, the extrusion force can be buffered through the spring, and the first limiting plate and the second limiting plate are slowly attached by matching with the rubber buffer block, so that the pitting effect caused by impact is solved, and the service life of the stress buffer mechanism is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of the stress buffering mechanism of the present invention;
FIG. 3 is a cross-sectional view of the stress buffering mechanism of the present invention at position A-A;
FIG. 4 is an enlarged structural view taken at C in FIG. 3 in accordance with the present invention;
FIG. 5 is a structural view of an anti-pitting mechanism of the present invention;
FIG. 6 is a structural view of the sealing mechanism of the present invention;
fig. 7 is a sectional view of the sheath of the present invention at the B-B position.
In the figure: 1. a pipe body; 2. a stress buffering mechanism; 21. a flange connecting plate; 22. a first casing; 23. a sheath; 231. a silica gel cloth layer; 232. an elastic rubber cloth; 233. a rubber asphalt waterproof coating layer; 24. mounting a plate; 25. a connecting pipe; 26. a bellows; 27. a second casing; 28. a pitting corrosion prevention mechanism; 281. mounting grooves; 282. a spring; 283. a rubber buffer block; 284. a reinforcement cylinder; 29. a sealing mechanism; 291. an annular neck; 292. a sealing groove; 293. a seal ring; 294. clamping the cylinder; 295. a first seal ring; 296. a second seal ring; 210. a first limit plate; 212. a second limiting plate; 213. a ball bearing; 214. and (4) rolling the groove.
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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 7, the present invention provides a technical solution of HDPE water supply pipe:
an HDPE water supply pipe, as shown in figures 1 to 4, comprises a pipe body 1, wherein two ends of the pipe body 1 are respectively and fixedly connected with a stress buffering mechanism 2;
the stress buffering mechanism 2 comprises a flange connection disc 21, a first casing 22, a mounting plate 24, a connecting pipe 25, a corrugated pipe 26, a second casing 27, an anti-pitting mechanism 28, a first limiting plate 210, a second limiting plate 212, balls 213 and a rolling groove 214; the mounting plate 24 is fixedly connected with the pipeline body 1 through a connecting pipe 25, a second protection cylinder 27 is fixedly mounted at the edge position of the outer surface of one end of the mounting plate 24, a first limiting plate 210 is fixedly mounted at the edge position of the outer circular surface of the second protection cylinder 27, and an anti-pitting mechanism 28 is arranged at one end of the first limiting plate 210; the outer surface of one end of the mounting plate 24 is close to the inner side of a second protective cylinder 27 and is fixedly connected with a corrugated pipe 26; one end of the corrugated pipe 26 is fixedly connected with a flange connecting disc 21; a first protective cylinder 22 is fixedly arranged at the outer side position of the outer surface of one end of the flange connecting disc 21 close to the corrugated pipe 26, a second limiting plate 212 is fixedly arranged at the edge position of the inner circular surface of the first protective cylinder 22, and the first limiting plate 210 and the second limiting plate 212 are oppositely arranged in the opening direction and used for mutual clamping limiting of the first limiting plate 210 and the second limiting plate 212; the inner circular surface of the second limiting plate 212 is annularly and fixedly provided with a plurality of groups of balls 213; the outer circular surface of the second casing 27 is annular, and a plurality of rolling grooves 214 are formed in positions corresponding to the balls 213, so as to reduce the friction coefficient between the second limiting plate 212 and the second casing 27 during movement.
The invention aims at solving the problem that the HDPE water supply pipe self expands with heat and contracts with cold stress and cracks the pipeline, because the comparison patent can lead the HDPE water supply pipe to lose the self wear resistance and the shearing resistance by arranging the corrugation on the barrel of the pipeline, the pipeline can be damaged by various shearing force and friction force in the using process, the service life of the pipe is shortened, meanwhile, under the condition of larger temperature difference between day and night, the possibility of cracking the HDPE water supply pipe still exists when the corrugation compensation quantity can not meet the deformation quantity required by the telescopic stress, the invention can realize the compensation of the deformation quantity of the telescopic stress borne by the pipeline body 1 by the expansion and contraction of the corrugated pipe 26 by arranging the corrugated pipes 26 at the two ends of the pipeline body 1, and solves the problem that the HDPE water supply pipe self expands with heat and contracts with cold stress and cracks the pipeline, simultaneously, for the contrast patent, through setting up first limiting plate 210 and second limiting plate 212, reach the limit at bellows 26 compensation, when the deformation volume that its ripple compensation volume can't satisfy flexible stress needs, first limiting plate 210 is spacing through the mode of joint each other with second limiting plate 212, prevent bellows 26 fracture under great flexible stress, in addition, form a protective cylinder in the bellows 26 outside through first limiting plate 210 and second limiting plate 212, can improve owing to set up wear resistance and the anti-shear property that bellows 26 and reduce, and then make the life of bellows 26 position obtain improving.
As an embodiment of the present invention, as shown in fig. 5, the pitting corrosion prevention mechanism 28 includes a mounting groove 281, a spring 282, a rubber bumper 283, and a reinforcing cylinder 284; the mounting groove 281 is embedded in the edge position of one end of the first limiting plate 210; a spring 282 is fixedly arranged in the mounting groove 281; one end of the spring 282 extends out of the mounting groove 281 and is fixedly provided with a rubber buffer block 283; the spring 282 can drive the rubber buffer block 283 to be collected into the mounting groove 281 after being completely compressed; one end of the second limiting plate 212 is fixedly provided with a reinforcing cylinder 284, and the cross section of the reinforcing cylinder 284 is of a triangular structure; during operation, especially under the great condition of the difference in temperature round the clock, bellows 26 is flexible repeatedly and is easily compensated the deformation volume that the pipeline received expend with heat and contract with cold stress and bring, make first limiting plate 210 and second limiting plate 212 strike repeatedly when the laminating, long-time use forms the point corrosion easily at the contact position, and then destroy the structural strength of first limiting plate 210 and second limiting plate 212, and then shorten stress buffer mechanism 2's life, through setting up mounting groove 281, spring 282 and rubber buffer block 283, when first limiting plate 210 and second limiting plate 212 laminating, can cushion the extrusion force through spring 282, cooperation rubber buffer block makes first limiting plate 210 and second limiting plate 212 slowly laminate, and then solved the pitting effect 283 that brings because the striking, stress buffer mechanism 2's life has been prolonged.
As an embodiment of the present invention, as shown in fig. 6, a sealing mechanism 29 is fixedly connected between the second limiting plate 212 and the first limiting plate 210; the sealing mechanism 29 comprises an annular clamping groove 291, a sealing groove 292, a sealing ring 293, a clamping cylinder 294, a first sealing ring 295 and a second sealing ring 296; the annular clamping groove 291 is embedded in the middle of the other end of the second limiting plate 212, and one end of the inner surface of the annular clamping groove 291 is provided with a sealing groove 292; a clamping cylinder 294 is fixedly arranged on the outer surface of one side of the first limiting plate 210 at a position corresponding to the annular clamping groove 291, two sealing rings 293 are symmetrically arranged on the inner and outer circular surfaces of the clamping cylinder 294, and the sealing rings 293 can be matched with the sealing groove 292 to seal the first limiting plate 210 and the second limiting plate 212; one end of the outer circular surface of the second limiting plate 212 is fixedly provided with a first sealing ring 295; a second sealing ring 296 is fixedly arranged at one end of the inner circular surface of the first limiting plate 210; after bellows 26 uses for a long time, because stretch out and draw back repeatedly, make bellows 26 produce fatigue fracture easily, and then cause the effluvium of rivers, cause economic loss simultaneously, through setting up sealing mechanism 29, after bellows 26 takes place fatigue fracture, because the shrink stress of pipeline body 1 and the pressure of rivers, first limiting plate 210 supports the laminating tightly each other with second limiting plate 212, at this moment, spring 282 contracts completely, it is inside to drive rubber buffer block 283 income mounting groove 281, make first sealing ring 295 cooperate second sealing ring 296 to form preliminary sealing, at the seal groove 292 through the inside setting of ring groove 291, sealing ring 293 forms the second step and seals, and then make after bellows 26 uses the fracture, the rivers can not let out through the clearance of first limiting plate 210 with second limiting plate 212, and then economic loss has been avoided.
As an embodiment of the present invention, as shown in fig. 1, the length ratio of the stress buffering mechanism 2 to the pipe body 1 is: 10:1, which is used for ensuring that the pipeline body 1 still has good bending performance of the HDPE pipe; the during operation owing to set up stress buffer gear 2, can reduce the whole pipeline toughness that pipeline body 1 and stress buffer gear 2 formed, the installation of being not convenient for is laid, establishes through the length ratio with stress buffer gear 2 and pipeline body 1: 10:1, the toughness of the whole pipeline is not greatly influenced, and the installation and the laying are convenient.
As an embodiment of the present invention, as shown in fig. 7, a sheath 23 is fixedly mounted on an outer surface of one end of the mounting plate 24 at a position close to an outer side of the second casing 27; one end of the sheath 23 is fixedly connected with the first casing 22; the sheath 23 comprises a silica gel cloth layer 231, an elastic rubber cloth 232 and a rubber asphalt waterproof coating layer 233; the elastic rubber cloth 232 is fixedly connected with the outer surface of one end of the mounting plate 24, a silica gel cloth layer 231 is fixedly mounted on the outer circular surface of the elastic rubber cloth 232, and a rubber asphalt waterproof coating layer 233 is coated on the inner circular surface of the elastic rubber cloth; the during operation, because the pipeline normally works underground, earth and grit at the bottom of the earth get into the hookup location of first limiting plate 210 and second limiting plate 212 easily, influence the normal work of stress buffer gear 2, through setting up sheath 23, can seal the hookup location of first limiting plate 210 and second limiting plate 212, prevent the entering of earth and grit at the bottom of the earth, the normal work of stress buffer gear 2 has been guaranteed, and simultaneously, sheath 23 is by silica gel cloth 231, elastic rubber cloth 232 and rubber asphalt waterproof coating layer 233 constitute, better pliability has, when can cooperate the work of stress buffer gear 2, still have better wearability and waterproof nature, the life of sheath 23 has been prolonged.
As an embodiment of the present invention, as shown in fig. 3, a connecting pipe 25 is fixedly installed at an edge position of an outer surface of the other end of the mounting plate 24; the connecting pipe 25 and the pipeline body 1 are both made of HDPE materials, the diameter of the connecting pipe 25 is equal to that of the pipeline body 1, and the connecting pipe 25 and the pipeline body 1 are fixedly connected by hot-melting butt joint; during operation, use for a long time at bellows 26 and because fatigue fracture back, need change stress buffer gear 2, through at mounting panel 24 other end surface border position fixed mounting have connecting pipe 25, can lift old stress buffer gear 2 off through the mode of cutting connecting pipe 25, simultaneously, utilize hot melt butt joint technique to carry out the hot melt butt joint to connecting pipe 25 and the pipeline body 1 of new stress buffer gear 2 upper end, make things convenient for stress buffer gear 2's change.
The using method comprises the following steps: when the pipeline is used, the pipeline body 1 and the stress buffering mechanism 2 are firstly placed in the arranged groove and are mutually connected through the flange connection disc 21 to finish the laying of the pipeline, when the pipeline works, the corrugated pipes 26 are arranged at the two ends of the pipeline body 1, when the pipeline body 1 is subjected to thermal expansion and cold contraction stress, the compensation of the deformation quantity of the telescopic stress borne by the pipeline body 1 is realized through the expansion and contraction of the corrugated pipes 26, the problem that the HDPE water supply pipe per se is cracked due to the thermal expansion and cold contraction stress is solved, meanwhile, compared with the comparison patent, the first limiting plate 210 and the second limiting plate 212 are arranged, when the compensation of the corrugated pipes 26 reaches the limit, and the deformation quantity required by the telescopic stress cannot be met through the compensation quantity of the corrugated pipes, the first limiting plate 210 and the second limiting plate 212 are mutually limited in a clamping mode, so that the corrugated pipes 26 are prevented from being cracked under the larger telescopic stress, in addition, the first limit plate 210 and the second limit plate 212 form a protective sleeve outside the corrugated tube 26, which can improve the wear resistance and the shear resistance reduced by the arrangement of the corrugated tube 26, so as to improve the service life of the position of the corrugated tube 26, especially under the condition of large day and night temperature difference, the corrugated tube 26 repeatedly extends and contracts to easily compensate the deformation amount caused by the thermal expansion and cold contraction stress of the pipeline, so that the first limit plate 210 and the second limit plate 212 repeatedly impact when being attached, pitting corrosion is easily formed at the contact position after long-time use, the structural strength of the first limit plate 210 and the second limit plate 212 is further damaged, the service life of the stress buffering mechanism 2 is further shortened, and by arranging the mounting groove 281, the spring 282 and the rubber buffering block 283, when the first limit plate 210 is attached to the second limit plate 212, the extrusion force can be buffered by the spring 282, the first limiting plate 210 and the second limiting plate 212 are slowly attached by matching with the rubber buffer block 283, so that the pitting effect caused by impact is solved, and the service life of the stress buffering mechanism 2 is prolonged.
The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An HDPE water supply pipe comprises a pipe body (1), and is characterized in that: two ends of the pipeline body (1) are respectively and fixedly connected with a stress buffering mechanism (2);
the stress buffering mechanism (2) comprises a flange connection disc (21), a first protection cylinder (22), a mounting plate (24), a connection pipe (25), a corrugated pipe (26), a second protection cylinder (27), a pitting corrosion prevention mechanism (28), a first limiting plate (210), a second limiting plate (212), balls (213) and a rolling groove (214); the mounting plate (24) is fixedly connected with the pipeline body (1) through a connecting pipe (25), a second protective cylinder (27) is fixedly mounted at the edge position of the outer surface of one end of the mounting plate (24), a first limiting plate (210) is fixedly mounted at the edge position of the outer circular surface of the second protective cylinder (27), and an anti-pitting mechanism (28) is arranged at one end of the first limiting plate (210); the outer surface of one end of the mounting plate (24) is close to the inner side of the second protective cylinder (27) and is fixedly connected with a corrugated pipe (26); one end of the corrugated pipe (26) is fixedly connected with a flange connecting disc (21); a first protective cylinder (22) is fixedly mounted at the outer side position, close to the corrugated pipe (26), of the outer surface of one end of the flange connecting disc (21), a second limiting plate (212) is fixedly mounted at the edge position of the inner circular surface of the first protective cylinder (22), and the first limiting plate (210) and the second limiting plate (212) are oppositely arranged in the opening direction and used for mutual clamping limiting of the first limiting plate (210) and the second limiting plate (212); the inner circular surface of the second limiting plate (212) is annularly and fixedly provided with a plurality of groups of balls (213); the outer circular surface of the second protective cylinder (27) is annular, and a plurality of rolling grooves (214) are formed in positions corresponding to the balls (213) and used for reducing the friction coefficient between the second limiting plate (212) and the second protective cylinder (27) during movement.
2. The HDPE feed water pipe material of claim 1, wherein: the pitting corrosion prevention mechanism (28) comprises a mounting groove (281), a spring (282), a rubber buffer block (283) and a reinforcing cylinder (284); the mounting groove (281) is embedded in the edge position of one end of the first limit plate (210); a spring (282) is fixedly arranged in the mounting groove (281); one end of the spring (282) extends out of the mounting groove (281) and is fixedly provided with a rubber buffer block (283); the spring (282) can drive the rubber buffer block (283) to be collected into the mounting groove (281) after being completely compressed; one end of the second limiting plate (212) is fixedly provided with a reinforcing cylinder (284), and the cross section of the reinforcing cylinder (284) is of a triangular structure.
3. An HDPE water supply pipe material as claimed in claim 2, characterized in that: a sealing mechanism (29) is fixedly connected between the second limiting plate (212) and the first limiting plate (210); the sealing mechanism (29) comprises an annular clamping groove (291), a sealing groove (292), a sealing ring (293), a clamping cylinder (294), a first sealing ring (295) and a second sealing ring (296); the annular clamping groove (291) is embedded in the middle of the other end of the second limiting plate (212), and one end of the inner surface of the annular clamping groove (291) is provided with a sealing groove (292); a clamping cylinder (294) is fixedly mounted on the outer surface of one side of the first limiting plate (210) at a position corresponding to the annular clamping groove (291), two sealing rings (293) are symmetrically mounted on the inner and outer circular surfaces of the clamping cylinder (294), and the sealing rings (293) can be matched with the sealing groove (292) to seal the first limiting plate (210) and the second limiting plate (212); one end of the outer circular surface of the second limiting plate (212) is fixedly provided with a first sealing ring (295); and one end of the inner circular surface of the first limiting plate (210) is fixedly provided with a second sealing ring (296).
4. The HDPE feed water pipe material of claim 1, wherein: the length ratio of the stress buffer mechanism (2) to the pipeline body (1) is as follows: 10:1, so as to ensure that the pipe body (1) still has good bending performance of the HDPE pipe.
5. The HDPE feed water pipe material of claim 1, wherein: a sheath (23) is fixedly arranged on the outer surface of one end of the mounting plate (24) close to the outer side of the second protective cylinder (27); one end of the sheath (23) is fixedly connected with the first protective cylinder (22); the sheath (23) comprises a silica gel cloth layer (231), an elastic rubber cloth (232) and a rubber asphalt waterproof coating layer (233); the elastic rubber cloth (232) is fixedly connected with the outer surface of one end of the mounting plate (24), a silica gel cloth layer (231) is fixedly mounted on the outer circular surface of the elastic rubber cloth, and a rubber asphalt waterproof coating layer (233) is coated on the inner circular surface of the elastic rubber cloth.
6. An HDPE water supply pipe material as claimed in claim 5, characterized in that: a connecting pipe (25) is fixedly arranged at the edge of the outer surface of the other end of the mounting plate (24); connecting pipe (25) and pipeline body (1) are HDPE material body, and connecting pipe (25) and pipeline body (1) diameter equal, and both adopt the hot melt butt joint to carry out fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110601867.2A CN113483176A (en) | 2021-05-31 | 2021-05-31 | HDPE water supply pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110601867.2A CN113483176A (en) | 2021-05-31 | 2021-05-31 | HDPE water supply pipe |
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| Publication Number | Publication Date |
|---|---|
| CN113483176A true CN113483176A (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110601867.2A Pending CN113483176A (en) | 2021-05-31 | 2021-05-31 | HDPE water supply pipe |
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| Country | Link |
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| CN (1) | CN113483176A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116877843A (en) * | 2023-09-04 | 2023-10-13 | 鑫鹏源(聊城)智能科技有限公司 | Corrugated pipe structure for improving axial strength of corrugated pipe |
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| JPH07127777A (en) * | 1993-11-04 | 1995-05-16 | Ben:Kk | Expansion pipe coupling |
| CN2539044Y (en) * | 2001-11-15 | 2003-03-05 | 上海国电燃机技术工程有限公司 | Duplex sealed bellows expansion joint with detachable filling |
| KR101699489B1 (en) * | 2015-10-07 | 2017-01-24 | 심성구 | Expansion joint assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116877843A (en) * | 2023-09-04 | 2023-10-13 | 鑫鹏源(聊城)智能科技有限公司 | Corrugated pipe structure for improving axial strength of corrugated pipe |
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