CN111609225A - Wear-resistant thermoplastic plastic hose - Google Patents
Wear-resistant thermoplastic plastic hose Download PDFInfo
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- CN111609225A CN111609225A CN202010334637.XA CN202010334637A CN111609225A CN 111609225 A CN111609225 A CN 111609225A CN 202010334637 A CN202010334637 A CN 202010334637A CN 111609225 A CN111609225 A CN 111609225A
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- Prior art keywords
- pipe
- inner pipe
- flange
- protective
- ring
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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
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
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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
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
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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
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/28—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses for hoses with one end terminating in a radial flange or collar
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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
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention belongs to the technical field of hoses, and particularly relates to a wear-resistant thermoplastic hose which comprises an inner pipe; the periphery of the inner pipe is sleeved with a wear-resistant protective pipe, the protective pipe is in clearance fit with the inner pipe, and one end of the inner pipe is fixedly connected with a flange; a group of ring grooves are formed between the inner pipe and the protective pipe, talcum powder is filled in the ring grooves, friction between the inner pipe and the protective pipe is reduced through the talcum powder, and the wear resistance of the inner pipe is improved; according to the invention, the group of ring grooves are formed between the inner pipe and the protective pipe, and the talcum powder is filled in the ring grooves, so that a small amount of talcum powder enters a gap between the inner pipe and the protective pipe when the inner pipe is bent, further the friction between the inner pipe and the protective pipe is reduced, the abrasion on the periphery of the inner pipe is reduced, and the abrasion resistance of the inner pipe is improved.
Description
Technical Field
The invention belongs to the technical field of hoses, and particularly relates to a wear-resistant thermoplastic hose.
Background
Hoses are an important component in modern industry. The hose is mainly used as a wire, a cable, a wire and cable protection pipe for automatic instrument signals and a civil shower hose, and the specification is from 3mm to 150 mm. The small-caliber hose (the inner diameter is 3mm-25mm) is mainly used for protecting a sensing circuit of a precision optical ruler and a circuit of an industrial sensor.
Mainly comprises the following components according to the application: threading hose, drainage hose, ventilation hose, gondola water faucet hose, pencil pipe. The material is mainly divided into: stainless steel hose, metal hose, corrugated hose, rubber hose, plastic hose.
Plastic hoses are divided into two types, one being completely airtight and watertight, such as for propellant transport in launch vehicles, gas, water heaters; the other plastic hose is continuously wound by a belt material, the common wound corrugated pipe is used for protecting cables, such as a magnetic card telephone and a machine tool, and the corrugated pipe of the table lamp is clamped with steel wires in the production process; the pneumatic tube is widely introduced in daily life and industrial production, and has high requirements on the material quantity of the tube and cannot introduce new impurities or ions in the pneumatic process for the pneumatic tube used in the production of medicines, chemical engineering and the like. When the pneumatic tube is connected, in order to facilitate connection and improve installation efficiency, a hose is required to be used for connection in many places; the joint and the hose are easy to fall off in the use process of the thermoplastic pneumatic hose.
Some technical scheme about the thermoplastic hose has also appeared among the prior art, has disclosed a thermoplasticity atmospheric pressure hose like chinese patent with application number 2016211897424, including steel wire mesh grid, fastener, quick-operation joint, atmospheric pressure hose, stainless steel wire and glass fiber web, the equal fixed mounting of spring protective sheath is at the both ends of steel wire mesh grid, and is connected through the fastener between spring protective sheath and the quick-operation joint, the one end of quick-operation joint is connected with the rotary joint, joint spare fixed mounting is in the outside of rotary joint, the inside of atmospheric pressure hose is inlayed and is had the stainless steel wire, and the outside of atmospheric pressure hose is equipped with the glass fiber web, atmospheric pressure hose and glass fiber web all set up the inside at steel wire mesh grid, and the atmospheric pressure hose connection is in one side of quick-operation joint. The thermoplastic air pressure hose is provided with a fastener, the falling-off between a quick connector and the air pressure hose is avoided, a steel wire with a spiral structure is embedded in the air pressure hose, the strength of the air pressure hose is increased, but the wear-resisting protection performance of the periphery of the hose in the prior art is not enough, a protective pipe supported by a wear-resisting material is usually sleeved outside the protective pipe for protection, the abrasion of the hose is reduced, but the bending degree between the hose and the protective pipe is different, so that the hose and the protective pipe slide mutually to increase the abrasion of the hose, meanwhile, when the existing protective pipe is connected with a flange, the protective pipe needs to be expanded, the inner diameter of one end, close to the flange, of the protective pipe is slightly larger than the outer diameter of the flange, then the flange can be inserted into the protective pipe, the protective pipe and the flange are fastened through a hoop, but the protective pipe is in the expansion process, because a, the nylon wire is torn off after the protective pipe is expanded, and the strength of the protective pipe is reduced.
Disclosure of Invention
In order to make up the defects of the prior art and solve the problem of insufficient wear resistance and protection performance of the prior art on the periphery of the hose, the hose is usually protected by a protective pipe supported by a wear-resistant material, so that the wear of the hose is reduced, but the bending degree between the hose and the protective pipe is different, so that the hose and the protective pipe slide mutually, the abrasion of the hose is increased, meanwhile, when the existing protective pipe is connected with the flange, the protective pipe needs to be expanded, so that the inner diameter of one end of the protection pipe close to the flange is slightly larger than the outer diameter of the flange, the flange can be inserted into the protection pipe, the protection pipe and the flange are fastened through the hoop, but in the expansion process of the protection pipe, the reticular nylon wire embedded in the protective pipe has no strong elasticity, so that the nylon wire is torn off after the protective pipe is expanded, and the strength of the protective pipe is reduced.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a wear-resistant thermoplastic plastic hose, which comprises an inner pipe; the periphery of the inner pipe is sleeved with a wear-resistant protective pipe, the protective pipe is in clearance fit with the inner pipe, and one end of the inner pipe is fixedly connected with a flange; a group of ring grooves are formed between the inner pipe and the protective pipe, talcum powder is filled in the ring grooves, friction between the inner pipe and the protective pipe is reduced through the talcum powder, and the wear resistance of the inner pipe is improved; when the inner pipe is used, pressure fluid is filled into the inner pipe, the inner pipe is attached to the protective pipe after slight expansion, the abrasion of the periphery of the inner pipe in the moving process is increased through the protective pipe, when the inner pipe needs to be moved and bent continuously, the bending degree between the inner pipe and the protective pipe is different, further the inner pipe and the protective pipe slide mutually, the abrasion of the inner pipe is increased, a group of annular grooves are formed between the inner pipe and the protective pipe at the moment, talcum powder is filled in the annular grooves, a small amount of talcum powder enters a gap between the inner pipe and the protective pipe when the inner pipe is bent, further the friction between the inner pipe and the protective pipe is reduced, the abrasion of the periphery of the inner pipe is reduced.
Preferably, an annular shear ring is arranged in the ring groove, and the sliding between the inner pipe and the protective pipe is reduced through the shear ring, so that the abrasion of the inner pipe is further reduced; through the shearing ring card in the annular for to the shearing ring formation when the inner tube is crooked along inner tube axial shearing force, through blockking of shearing ring, reduce the relative sliding distance between inner tube and the protective tube, and then further reduce the wearing and tearing that the inner tube periphery received, further add the wearability of inner tube.
Preferably, an expansion ring is embedded in one end of the protection pipe close to the flange, and the expansion ring is an annular reinforcing rope arranged in a zigzag manner; the flange is inserted between the inner pipe and the protective pipe; the strength of the protective tube during expansion is increased through the expansion ring, and the connection strength of the flange and the protective tube is increased; when current protecting tube and flange joint, need expand the protecting tube, make the protecting tube be close to the internal diameter of the one end of flange and slightly be greater than the external diameter of flange, later just can insert the flange in the protecting tube, fasten protecting tube and flange through the staple bolt, but the protecting tube is at the expansion in-process, because embedded netted nylon wire does not possess stronger elasticity in the protecting tube, make the protecting tube tear the nylon wire off after expanding, reduce the intensity of protecting tube, the one end that is close to the flange through the protecting tube is embedded to have the expansion ring this moment, the rope is strengthened for the annular that the zigzag was arranged to the expansion ring, make the protecting tube pass through the deformation of expansion ring in the expansion process, absorb the internal diameter expansion deformation of protecting tube, increase the intensity that the protecting tube is close to flange one end, and then increase the joint strength of protecting tube and flange, reduce and leak.
Preferably, a group of barbs are uniformly distributed on the periphery of the flange at positions corresponding to the expansion ring in an annular manner, and the expansion ring is locked by the barbs to further increase the connection strength between the flange and the protective pipe; when the flange inserts between protective tube and the inner tube, through barb embedding protective tube inner wall, the cooperation expansion ring blocks the winding of barb, further increases the joint strength between flange and the protective tube, prevents the pine and takes off, guarantees the normal work of flange, further reduces the leakage of hose.
Preferably, a group of through holes are formed between the ring groove and the expansion ring along the axial direction of the protective pipe, pull ropes are arranged in the through holes, one end of each pull rope is fixedly connected with the shear ring, and the other end of each pull rope is fixedly connected with the expansion ring; the displacement of the shear ring is limited through the pull rope, so that the rolling of the shear ring is reduced, and the abrasion of the inner pipe is further reduced; link firmly shear ring and expansion ring through the stay cord, reduce the roll of shear ring, reduce shear ring roll-off spout, and then guarantee the ability of restriction of relative displacement between shear ring pair inner tube and the protecting tube, when the flange inserts between protecting tube and the inner tube simultaneously, the protecting tube expands together with the expansion ring, and then horizontal shrink pulling stay cord when further expanding through the expansion ring, further promotes the limiting displacement of stay cord to the shear ring, reduces the wearing and tearing of inner tube periphery.
Preferably, the inner periphery of the flange is provided with a clamping groove, and the inner pipe extends into the clamping groove; a group of arc-shaped clamping blocks connected end to end are arranged on the inner periphery of the inner pipe at positions corresponding to the clamping grooves; one end of each fixture block is provided with a trapezoidal protrusion, the other end of each fixture block is provided with a groove matched with the protrusion, the fixture blocks are connected end to form an inner pipe in an annular extruding clamping groove, the sudden change of an effective flowing section in the inner pipe at a flange is reduced, and the abrasion of the inner wall of the inner pipe is reduced; when the inner pipe is inserted into the flange, the end face of the inner pipe is aligned with the end face of the flange, the inner pipe is expanded through the expansion device, the inner pipe is embedded into the clamping groove, the clamping block is spliced in the inner pipe to enable the clamping block to be connected end to form a ring, the expansion device is taken out, the ring support formed by the clamping block abuts against the inner circumference of the inner pipe, the effective flow cross section area mutation when the inner pipe is connected with the flange is reduced, fluid under pressure smoothly flows through the flange, abrasion of the inner diameter of the inner pipe due to fluid impact is reduced, and the service life of the inner.
The invention has the following beneficial effects:
1. according to the wear-resistant thermoplastic plastic hose, the group of ring grooves are formed between the inner pipe and the protective pipe, and the talcum powder is filled in the ring grooves, so that a small amount of talcum powder enters a gap between the inner pipe and the protective pipe when the inner pipe is bent, the friction between the inner pipe and the protective pipe is further reduced, the wear on the periphery of the inner pipe is reduced, and the wear resistance of the inner pipe is improved.
2. According to the wear-resistant thermoplastic plastic hose, the expansion ring is embedded in one end, close to the flange, of the protection pipe, and the expansion ring is the annular reinforcing rope arranged in the zigzag mode, so that the protection pipe absorbs the expansion deformation of the inner diameter of the protection pipe through the deformation of the expansion ring in the expansion process, the strength of one end, close to the flange, of the protection pipe is increased, the connection strength of the protection pipe and the flange is further increased, and leakage is reduced.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is an enlarged view of a portion of FIG. 1 at B;
FIG. 5 is an enlarged view of a portion of FIG. 2 at C;
in the figure: the device comprises an inner pipe 1, a protective pipe 11, a flange 12, a ring groove 13, a shear ring 14, an expansion ring 15, a barb 16, a through hole 17, a pull rope 18, a clamping groove 2, a clamping block 21, a protrusion 22 and a groove 23.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 5, a wear-resistant thermoplastic hose according to the present invention includes an inner tube 1; the periphery of the inner pipe 1 is sleeved with a wear-resistant protective pipe 11, the protective pipe 11 is in clearance fit with the inner pipe 1, and one end of the inner pipe 1 is fixedly connected with a flange 12; a group of annular grooves 13 are formed between the inner pipe 1 and the protective pipe 11, talcum powder is filled in the annular grooves 13, friction between the inner pipe 1 and the protective pipe 11 is reduced through the talcum powder, and the wear resistance of the inner pipe 1 is improved; during the use, fill pressure fluid in inner tube 1, after inner tube 1 slightly expands, with the laminating of protective tube 11, increase the periphery wearing and tearing of inner tube 1 in the removal in-process through protective tube 11, but when inner tube 1 need constantly remove and crooked, the bending degree between inner tube 1 and the protective tube 11 is different, and then make and take place mutual slip between inner tube 1 and the protective tube 11, increase the wearing and tearing of inner tube 1, a set of annular groove 13 has been seted up between inner tube 1 and the protective tube 11 this moment, be equipped with the talcum powder in the annular groove 13, make a small amount of talcum powder get into the clearance between inner tube 1 and the protective tube 11 when inner tube 1 is crooked, and then reduce the friction between inner tube 1 and the protective tube 11, reduce the wearing and tearing that inner tube 1 periphery received, increase the wearability of inner.
As an embodiment of the present invention, an annular shear ring 14 is disposed in the annular groove 13, and the shear ring 14 reduces the sliding between the inner pipe 1 and the protection pipe 11, thereby further reducing the wear on the inner pipe 1; through the shearing ring 14 card in annular 13 for form along the axial shearing force of inner tube 1 to shearing ring 14 when inner tube 1 is crooked, through the blockking of shearing ring 14, reduce the relative sliding distance between inner tube 1 and the protective tube 11, and then further reduce the wearing and tearing that the outer periphery of inner tube 1 received, further add the wearability of inner tube 1.
As an embodiment of the present invention, an expansion ring 15 is embedded in one end of the protection pipe 11 close to the flange 12, and the expansion ring 15 is a ring-shaped reinforcing rope arranged in a zigzag manner; the flange 12 is inserted between the inner pipe 1 and the protective pipe 11; the strength of the protection tube 11 during expansion is increased through the expansion ring 15, and the connection strength of the flange 12 and the protection tube 11 is increased; when the existing protection pipe 11 is connected with the flange 12, the protection pipe 11 needs to be expanded, so that the inner diameter of one end, close to the flange 12, of the protection pipe 11 is slightly larger than the outer diameter of the flange 12, then the flange 12 can be inserted into the protection pipe 11, the protection pipe 11 and the flange 12 are fastened through a hoop, but in the expansion process of the protection pipe 11, because the mesh-shaped nylon wire embedded in the protection pipe 11 does not have strong elasticity, the nylon wire is torn off after the protection pipe 11 is expanded, the strength of the protection pipe 11 is reduced, at this time, an expansion ring 15 is embedded in one end, close to the flange 12, of the protection pipe 11, the expansion ring 15 is an annular reinforcing rope arranged in a zigzag manner, so that the protection pipe 11 absorbs the expansion deformation of the inner diameter of the protection pipe 11 through the deformation of the expansion ring 15 in the expansion process, the strength of one end, close to the flange 12, of the protection pipe 11 is increased, and the connection, and the leakage is reduced.
As an embodiment of the invention, a group of barbs 16 are annularly and uniformly distributed on the outer periphery of the flange 12 at positions corresponding to the expansion ring 15, and the expansion ring 15 is locked by the barbs 16 to further increase the connection strength between the flange 12 and the protective pipe 11; when flange 12 inserts between protective tube 11 and the inner tube 1, through barb 16 embedding protective tube 11 inner wall, cooperation expansion ring 15 blocks the winding of barb 16, further increases the joint strength between flange 12 and the protective tube 11, prevents to loosen, guarantees flange 12's normal work, further reduces the leakage of hose.
As an embodiment of the present invention, a set of through holes 17 is formed between the ring groove 13 and the expansion ring 15 along the axial direction of the protection tube 11, a pull rope 18 is arranged in the through holes 17, one end of the pull rope 18 is fixedly connected with the shear ring 14, and the other end is fixedly connected with the expansion ring 15; the displacement of the shear ring 14 is limited through the pull rope 18, so that the rolling of the shear ring 14 is reduced, and the abrasion of the inner pipe 1 is further reduced; link firmly shear ring 14 and expansion ring 15 through stay cord 18, reduce the roll of shear ring 14, reduce shear ring 14 roll-off spout, and then guarantee the restriction ability of shear ring 14 to relative displacement between inner tube 1 and protective tube 11, when flange 12 inserts between protective tube 11 and the inner tube 1 simultaneously, protective tube 11 expands together with expansion ring 15, and then horizontal shrink pulling stay cord 18 when further expanding through expansion ring 15, further promote the limiting displacement of stay cord 18 to shear ring 14, reduce the wearing and tearing of inner tube 1 periphery.
As an embodiment of the present invention, a clamping groove 2 is formed on the inner periphery of the flange 12, and the inner pipe 1 extends into the clamping groove 2; a group of arc-shaped clamping blocks 21 connected end to end are arranged on the inner periphery of the inner tube 1 and at positions corresponding to the clamping grooves 2; one end of the fixture block 21 is provided with a trapezoidal protrusion 22, the other end of the fixture block 21 is provided with a groove 23 matched with the protrusion 22, the fixture block 21 is connected end to form an annular inner pipe 1 tightly squeezing the clamping groove 2, the sudden change of the effective flow section in the inner pipe 1 at the flange 12 is reduced, and the abrasion of the inner wall of the inner pipe 1 is reduced; when the inner tube 1 inserts in the flange 12, after 1 terminal surface of inner tube aligns with flange 12 terminal surface simultaneously, expand inner tube 1 through the extension fixture, make in inner tube 1 embedding draw-in groove 2, later splice fixture block 21 makes fixture block 21 end to end form the ring shape in inner tube 1, later take out the extension fixture, make the annular that fixture block 21 formed support and support tight inner tube 1 interior week, and then effective circulation sectional area sudden change when reducing inner tube 1 and flange 12 and being connected, make the smooth-going flange 12 that flows through of area pressure fluid, reduce the wearing and tearing of fluid impact to inner tube 1 internal diameter, further increase the life of inner tube 1.
When the inner pipe 1 is used, pressure fluid is filled into the inner pipe 1, the inner pipe 1 is attached to the protective pipe 11 after slight expansion, the abrasion of the periphery of the inner pipe 1 in the moving process is increased through the protective pipe 11, but when the inner pipe 1 needs to be moved and bent continuously, the bending degree between the inner pipe 1 and the protective pipe 11 is different, so that the inner pipe 1 and the protective pipe 11 slide mutually, the abrasion of the inner pipe 1 is increased, at the moment, a group of annular grooves 13 are formed between the inner pipe 1 and the protective pipe 11, and talcum powder is filled in the annular grooves 13, so that a small amount of talcum powder enters a gap between the inner pipe 1 and the protective pipe 11 when the inner pipe 1 is bent, the friction between the inner pipe 1 and the protective pipe 11 is reduced, the abrasion of the periphery of the inner pipe; the shearing ring 14 is clamped in the ring groove 13, so that shearing force along the axial direction of the inner pipe 1 is formed on the shearing ring 14 when the inner pipe 1 is bent, the relative sliding distance between the inner pipe 1 and the protective pipe 11 is reduced by the blocking of the shearing ring 14, the abrasion on the periphery of the inner pipe 1 is further reduced, and the abrasion resistance of the inner pipe 1 is further improved; when the existing protection pipe 11 is connected with the flange 12, the protection pipe 11 needs to be expanded, so that the inner diameter of one end, close to the flange 12, of the protection pipe 11 is slightly larger than the outer diameter of the flange 12, then the flange 12 can be inserted into the protection pipe 11, the protection pipe 11 and the flange 12 are fastened through a hoop, but in the expansion process of the protection pipe 11, because the mesh-shaped nylon wire embedded in the protection pipe 11 does not have strong elasticity, the nylon wire is torn off after the protection pipe 11 is expanded, the strength of the protection pipe 11 is reduced, at this time, an expansion ring 15 is embedded in one end, close to the flange 12, of the protection pipe 11, the expansion ring 15 is an annular reinforcing rope arranged in a zigzag manner, so that the protection pipe 11 absorbs the expansion deformation of the inner diameter of the protection pipe 11 through the deformation of the expansion ring 15 in the expansion process, the strength of one end, close to the flange 12, of the protection pipe 11 is increased, and the connection, leakage is reduced; when the flange 12 is inserted between the protective pipe 11 and the inner pipe 1, the barb 16 is embedded into the inner wall of the protective pipe 11, and the expansion ring 15 is matched to block the barb 16 from winding, so that the connection strength between the flange 12 and the protective pipe 11 is further increased, loosening is prevented, the normal work of the flange 12 is ensured, and the leakage of a hose is further reduced; the shear ring 14 is fixedly connected with the expansion ring 15 through the pull rope 18, so that the rolling of the shear ring 14 is reduced, the sliding of the shear ring 14 out of the sliding groove is reduced, the limiting capability of the shear ring 14 on the relative displacement between the inner tube 1 and the protective tube 11 is further ensured, meanwhile, when the flange 12 is inserted between the protective tube 11 and the inner tube 1, the protective tube 11 and the expansion ring 15 are expanded, the pull rope 18 is further pulled through the transverse contraction during the expansion of the expansion ring 15, the limiting effect of the pull rope 18 on the shear ring 14 is further improved, and the abrasion of the periphery of the inner tube 1 is reduced; when the inner tube 1 inserts in the flange 12, after 1 terminal surface of inner tube aligns with flange 12 terminal surface simultaneously, expand inner tube 1 through the extension fixture, make in inner tube 1 embedding draw-in groove 2, later splice fixture block 21 makes fixture block 21 end to end form the ring shape in inner tube 1, later take out the extension fixture, make the annular that fixture block 21 formed support and support tight inner tube 1 interior week, and then effective circulation sectional area sudden change when reducing inner tube 1 and flange 12 and being connected, make the smooth-going flange 12 that flows through of area pressure fluid, reduce the wearing and tearing of fluid impact to inner tube 1 internal diameter, further increase the life of inner tube 1.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but 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 construed as limiting the scope of the present invention.
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 described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A wear resistant thermoplastic hose characterized by: comprises an inner tube (1); the outer periphery of the inner pipe (1) is sleeved with a wear-resistant protective pipe (11), the protective pipe (11) is in clearance fit with the inner pipe (1), and one end of the inner pipe (1) is fixedly connected with a flange (12); a group of ring grooves (13) are formed between the inner pipe (1) and the protective pipe (11), talcum powder is arranged in the ring grooves (13), friction between the inner pipe (1) and the protective pipe (11) is reduced through the talcum powder, and abrasion resistance of the inner pipe (1) is improved.
2. A wear resistant thermoplastic hose according to claim 1, wherein: an annular shear ring (14) is arranged in the annular groove (13), and the sliding between the inner pipe (1) and the protective pipe (11) is reduced through the shear ring (14), so that the abrasion of the inner pipe (1) is further reduced.
3. A wear resistant thermoplastic hose according to claim 2, wherein: an expansion ring (15) is embedded in one end of the protective pipe (11) close to the flange (12), and the expansion ring (15) is an annular reinforcing rope which is arranged in a zigzag manner; the flange (12) is inserted between the inner pipe (1) and the protective pipe (11); the strength of the protective tube (11) during expansion is increased through the expansion ring (15), and the connection strength of the flange (12) and the protective tube (11) is increased.
4. A wear resistant thermoplastic hose according to claim 3, wherein: a set of barbs (16) are annularly and uniformly distributed on the periphery of the flange (12) and at positions corresponding to the expansion ring (15), and the connection strength between the flange (12) and the protective pipe (11) is further improved by locking the expansion ring (15) through the barbs (16).
5. A wear resistant thermoplastic hose according to claim 4, wherein: a group of through holes (17) are formed between the ring groove (13) and the expansion ring (15) along the axial direction of the protective pipe (11), a pull rope (18) is arranged in each through hole (17), one end of each pull rope (18) is fixedly connected with the shear ring (14), and the other end of each pull rope (18) is fixedly connected with the expansion ring (15); the displacement of the shear ring (14) is limited through the pull rope (18), the rolling of the shear ring (14) is reduced, and the abrasion of the inner pipe (1) is further reduced.
6. A wear resistant thermoplastic hose according to claim 5, wherein: the inner periphery of the flange (12) is provided with a clamping groove (2), and the inner pipe (1) extends into the clamping groove (2); a group of arc-shaped clamping blocks (21) which are connected end to end are arranged on the inner periphery of the inner tube (1) and at positions corresponding to the clamping grooves (2); the fixture block (21) is characterized in that one end of the fixture block (21) is provided with a trapezoidal protrusion (22), the other end of the fixture block is provided with a groove (23) matched with the protrusion (22), the fixture block (21) is connected end to form an inner pipe (1) in an annular extrusion clamping groove (2), the sudden change of an effective circulation section in the inner pipe (1) at a flange (12) is reduced, and the abrasion of the inner wall of the inner pipe (1) is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010334637.XA CN111609225B (en) | 2020-04-24 | 2020-04-24 | Wear-resistant thermoplastic plastic hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010334637.XA CN111609225B (en) | 2020-04-24 | 2020-04-24 | Wear-resistant thermoplastic plastic hose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111609225A true CN111609225A (en) | 2020-09-01 |
| CN111609225B CN111609225B (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010334637.XA Active CN111609225B (en) | 2020-04-24 | 2020-04-24 | Wear-resistant thermoplastic plastic hose |
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| Country | Link |
|---|---|
| CN (1) | CN111609225B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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|---|---|
| CN111609225B (en) | 2021-12-07 |
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Effective date of registration: 20211124 Address after: 241000 No. 44, Gongye Avenue, Anhui Xinwu Economic Development Zone, Wanhe District, Wuhu City, Anhui Province Applicant after: Shengda pipe industry (Wuhu) Technology Co.,Ltd. Address before: 236800 Bozhou vocational and technical college, 1625 Yaodu Road, Bozhou City, Anhui Province Applicant before: Zhang Jialiu |