Novel telescopic water pipe
Technical Field
The utility model relates to a flexible water pipe technical field especially relates to a novel flexible water pipe and manufacturing method thereof.
Background
The existing telescopic water pipes in the market at present are mostly composed of an inner core elastic pipe and an outer layer protective sleeve, the elastic pipe is made of latex, rubber or TPR thermoplastic elastomer, and when 3-10 kg of pressure water is connected, the radial water passing area and the longitudinal length of the elastic pipe can be expanded and extended by 2-4 times under the protection of the outer layer protective sleeve due to high elasticity of the elastic pipe; when the pressure water source is turned off, the telescopic water pipe discharges the residual water in the pipe rapidly under the effect of the resilience force of the inner core elastic pipe, and the residual water is retracted to the original product size, so that the telescopic water pipe is convenient to use and is deeply loved by customers at home and abroad. However, the service life of the telescopic water pipe with the structure is shorter, the storage volume is larger, and the cloth cover on the outer surface is easy to be polluted, so that the expectation of people cannot be reached.
Detailed market research shows that 70% of the damage of the telescopic water pipe in use is caused by strong friction and tearing of the inner pipe and the outer sleeve, and after the telescopic water pipe is connected with a pressure water source, the elastic pipe of the inner core of the telescopic water pipe rapidly expands and expands to generate strong friction and tearing force with the folded outer sleeve; when the pressure water source is turned off and the retraction process is carried out, the inner core elastic tube and the outer cloth cover can rub again; in addition, sundries such as sand grains, branches and the like penetrate through the cloth sleeve in the using process, so that the water pipe can be fatally damaged in the expansion, extension and retraction processes. In order to solve the above drawbacks, engineers have made many researches, such as the patent with application number 201320166720.6, which discloses "a telescopic water pipe with plastic film inside" utility model, the friction and tear strength is reduced by adding a layer of plastic film between the water-through inner rubber tube and the corrugated outer sheath, but the plastic film has no elasticity and is not wear-resistant, the technical proposal is that the film is broken after being stretched for about forty times in the specific implementation, the broken film fragments which reach about sixty times are agglomerated, the generated conglomerate fragments further increase the friction force of the water-through inner core of the telescopic water pipe, so the scheme has a certain protection function on the water-through inner core in the early stage of use, however, after the use times reach about 60 times, the effect of increasing the friction and tear stress on the water passing inner core can be reversely achieved, and the problem of prolonging the service life of the telescopic water pipe cannot be really solved. In order to solve the problems, the patent with the application number of 201520897299.5 discloses a 'wear-resistant synchronous telescopic water pipe' in the utility model, the bamboo joint type woven mesh outer sleeve is arranged outside the elastic pipe inner core, the bamboo joint type woven mesh outer sleeve and the water elastic pipe inner core are synchronous, radial and axial telescopic, the friction force and the tearing force between the outer sleeve and the water elastic pipe inner core in the telescopic process can be effectively reduced, but the length ratio of the bamboo joint type outer sleeve and the inner core elastic pipe adopted in the patent is 6:1, the weight of the telescopic water pipe is greatly increased, in addition, the adopted outer sleeve is made of textile materials, the outer sleeve is easy to dirty in the using process, inconvenient cleaning and arrangement are realized, the convenience of the telescopic water pipe is greatly reduced, and in addition, the processing and assembling processes of the telescopic water pipe are complicated.
Therefore, the 'high-pressure-resistant and wear-resistant telescopic water pipe without a cloth sleeve' disclosed in the patent No. 201720093703.2 adopts the telescopic water pipe with the elastic inner pipe, the high-strength silk screen and the elastic outer glue layer as the water pipe main body, so that the problem that the service life of the water pipe is reduced due to strong friction force and tearing force generated by the elastic pipe of the inner core and the folded outer sleeve in the traditional telescopic water pipe is solved, and the telescopic water pipe is convenient to carry and easy to clean. However, the telescopic water pipe is only provided with a simple layer of high-strength silk screen added into the elastic pipe, so that the radial and axial extension of the telescopic water pipe is limited, and can only reach 1.5 times at most, and the extension amount is limited. In order to solve the above problems, US20180299038a1, which uses a two-layer weave structure, wherein the outer side of the elastic inner tube adopts a weaving structure which can stretch longitudinally and transversely, then an elastic glue layer is extruded on the weaving structure to fix the woven net, a layer of yarn is wound outside the elastic rubber layer, so that the expansion of the transverse area of the rubber pipe is limited, the expansion length of the rubber pipe can reach 2.5 times, the technology solves the problem that the extension length of the telescopic water pipe without the cloth sleeve is limited, but the processing and the production are complicated due to the adoption of a multi-layer woven structure, in addition, the elasticity of the structure is mainly derived from the elastic glue layer, the elasticity is limited and the retraction process is slow due to the extension and the expansion of the braided layer limiting tube, in addition, when the water pipe is used, the adhesion glue layer in the middle of the water pipe is damaged due to the two-layer woven structure, the local expansion of the telescopic water pipe is too large and the telescopic water pipe is damaged, and the service life is short.
Therefore, the technical staff in the field needs to solve the problem of how to change the current situation that the telescopic water pipe is easy to break due to abrasion, stress and the like in the prior art, prolong the service life of the telescopic water pipe, and improve the convenience and storage cleanliness of the telescopic water pipe.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a novel flexible water pipe to solve the problem that above-mentioned prior art exists, the utility model discloses the water pipe adopts elastic material, changes traditional flexible water pipe structure, has that the shrink is fast, convenient to carry, clean simple, accomodate clean and tidy characteristics, has avoided the strong friction between traditional flexible water pipe inlayer pipe and the cloth cover, improves flexible water pipe's life.
The technical scheme of the utility model is that:
a novel telescopic water pipe is characterized by comprising an elastic inner pipe, an elastic braiding layer and an elastic outer layer which are sequentially arranged; the elastic braided layer is wrapped outside the elastic inner tube, the elastic outer layer is wrapped outside the elastic braided layer and the elastic inner tube, the elastic braided layer and the elastic outer layer are tightly attached to form a tube body;
the elastic weaving layer comprises a yarn weaving layer formed by oblique yarns, and radial elastic yarns are symmetrically distributed in the yarn weaving layer.
The utility model discloses a body structure that elasticity inner tube, elasticity weaving layer and elasticity skin combine closely has changed the mode that inner core elasticity pipe and outer cloth cover looks separation that traditional flexible water pipe adopted for the body volume is littleer, and the structure is compacter. Meanwhile, each layer of the pipe body has elasticity, so that the telescopic water pipe can be extended by 1-5 times under the action of a pressure water source, and can be retracted quickly after the pressure water source is cut off, and the use efficiency of the pipe body is greatly improved.
Further, the elastic yarns are wrapped by the yarn weaving layers, and the elastic weaving layers can limit transverse expansion and achieve longitudinal extension.
Furthermore, the transverse direction of the elastic woven layer can bear 8-30 kilograms of pressure, and the longitudinal length of the elastic woven layer is extended to be 1-7 times of the original longitudinal length.
Furthermore, the number of the elastic threads in the elastic weaving layer is 8-96, and the diameter of the elastic threads is 0.25mm-2 mm.
Furthermore, the yarn woven layer of the elastic woven layer is any one of a polyester woven layer, a polypropylene woven layer, a polyamide woven layer and an acrylic woven layer, and the yarn woven layer is formed by obliquely weaving 10D-5000D yarns.
The utility model discloses in, the yarn weaving layer of elasticity weaving layer adopts elastic material and the fibre class material that contains the warp to weave through the skew and forms, effectively prescribes a limit to its horizontal area's expansion, cooperates the effect of stretch yarn simultaneously, can realize its fore-and-aft drawing to further inject elasticity inner tube and elasticity outer layer and only can realize horizontal shrinkage motion and vertical extension motion, effectively avoid the inflation of body cross section, improve the utilization ratio and the life of body.
Furthermore, the inner diameter of the elastic inner tube is 3mm-95mm, the outer diameter is 3.2mm-100mm, and the wall thickness is 0.2mm-10 mm; the elastic outer layer is a thermoplastic elastic outer layer or a rubber outer layer, and the wall thickness of the elastic outer layer is 0.2mm-10 mm.
The elastic outer layer of the utility model is formed by extruding or coating to coat the elastic braided layer and the elastic braided layer in turn An elastic inner tube.Through the elastic outer layer, on one hand, external foreign matters can be effectively prevented from entering the elastic braided layer, and the elastic inner tube is torn in the dynamic friction between the elastic braided layer and the elastic inner tube, so that the service life of the tube body is influenced; on the other hand, the elastic outer layer enables the elastic braided layer and the elastic inner tube to be tightly combined, synchronous stretching can be basically realized, fluctuation friction between the elastic braided layer and the elastic inner tube is greatly reduced, and the service life of the elastic wire of the elastic braided layer is prolonged; meanwhile, the volume of the pipe body is smaller, the structure is more compact, the elasticity outer layer is beneficial to improving the elongation and the resilience and shrinkage performance of the pipe body, and the use efficiency of the pipe body is further improved. In addition, the elastic outer layer also enables the pipe body to be easier to clean and maintain.
Furthermore, the novel telescopic water pipe also comprises joints, and the joints are respectively arranged at two ends of the pipe body; the joint comprises a convex connecting piece, a buckle and a loose joint thread locking piece, the convex connecting piece is arranged in the elastic inner pipe, the buckle is of a claw type structure, the buckle is arranged on the outer side of the elastic inner pipe, the loose joint thread locking piece is arranged on the outer side of the buckle, and the loose joint thread locking piece is matched and connected with the buckle to lock the elastic inner pipe on the outer side of the convex connecting piece; the elastic inner pipe is characterized in that the convex connecting piece is of a hollow structure and comprises a body and a boss which are connected, the tail end of the boss is symmetrically provided with arc-shaped limiting parts which are beneficial to preventing the displacement of the elastic inner pipe, and the outer side of the body is provided with a threaded part; the threaded part is connected with the loose joint threaded locking part in a matched mode. The joint is provided with a through hole which is communicated with the elastic inner tube, and the joint can be connected with an external water source or a water using component. Through the cooperation connection between convex connecting piece, buckle, the loose joint screw thread retaining member is further detained steadily with buckle locking for the elastic inner tube forms stable structure in the convex connecting piece outside, with the elastic inner tube restriction inside connecting, does not take place the displacement when bearing pressure.
Further, the connector is provided with one of the following external connector structures at the end far away from the pipe body: a quick connect connection structure, an internal thread joint structure or an external thread joint structure.
The manufacturing method of the novel telescopic water pipe is characterized by comprising the following steps:
(1) preparing an elastic inner tube: preparing an elastic inner tube by adopting an extrusion or coating production mode;
(2) preparing an elastic braid layer on the outer side of the elastic inner tube: after the elastic yarn is stretched by 2-7 times in the original state by a knitting machine, the elastic yarn and the yarn are knitted simultaneously, synchronously, the prepared elastic inner tube is sent into the knitting machine in a natural state, and a yarn knitting layer formed by obliquely crossing the knitted elastic yarn and the yarn retracts to the natural state along with the elastic inner tube, so that a stretchable elastic knitting layer can be formed outside the elastic inner tube;
(3) preparing an elastic outer layer: and extruding or coating the elastic inner tube coated by the elastic braided layer to form an elastic outer layer on the surface of the elastic inner tube, and tightly combining the elastic outer layer with the elastic braided layer and the elastic inner tube in sequence to obtain the tube body.
Further, the manufacturing method also comprises the step of performing linkage production or sectional production by adopting an extruder, a knitting machine and a coating machine, wherein the linkage production of the extruder, the knitting machine and the coating machine comprises one of the following four modes: the production line comprises an extruder, a braiding machine and a coating machine, the production line comprises a coating machine, a braiding machine and an extruder, the production line comprises an extruder, a braiding machine and an extruder, and the production line comprises a coating machine, a braiding machine and a coating machine.
In particular, the method for producing the elastic inner tube/elastic outer layer by means of extrusion or coating can be realized by any of the prior art. For example, the coating production mode can be realized by adopting processing equipment and a method of Chinese patent '201610764418.9, a novel latex tube manufacturing device' and Chinese patent '201110458125.5, a novel process for producing a multilayer composite high-elasticity rubber tube'; the extrusion production mode can adopt equipment disclosed in Chinese patent 201820163303.9, a practical rubber tube extruder, Chinese patent 201620129232.1, a vertical extrusion production line of a silicone rubber tube, Chinese patent 201720369419.3 and a rubber extruder for rubber hose production, a preparation method of rubber tubes made of ethylene propylene rubber/polypropylene thermoplastic elastomer and Chinese patent 200610013445.9, design and trial production of an XJWU-120 rubber cold feed rubber tube extruder disclosed in the No. 1 of 1994 in rubber technology and equipment in China journal, and an extrusion production method disclosed in a continuous extrusion production line of knitted rubber tube blanks disclosed in the No. 46 of 1999 in rubber industry in China journal.
The extruder, braiding machine, coating machine can be implemented using any of the prior art equipment in the field.
The beneficial effects of the utility model reside in that:
the novel telescopic water pipe of the utility model adopts the pipe body structure that the elastic inner pipe, the elastic weaving layer and the elastic outer layer are tightly combined, changes the mode that the inner core elastic pipe and the outer cloth cover are separated from each other adopted by the traditional telescopic water pipe, and overcomes the defect of short service life caused by the strong friction of the inner core elastic pipe and the outer cloth cover of the traditional telescopic water pipe; in addition, the inner tube, the woven layer and the outer layer have elasticity, the woven layer is formed by obliquely weaving elastic materials containing warp yarns and fiber materials, the telescopic water pipe can be stretched by 1-5 times under the action of a pressure water source, and can be quickly retracted after the pressure water source is cut off, so that the use is convenient and quick; the outermost layer is made of thermoplastic material or rubber material, so that the cleaning is convenient; adopt three layer construction compound integrative, accomodate neatly.
The utility model discloses a flexible water pipe adopts extruder, braider and coating machine to carry out linkage production or sectional type production to can form different four kinds of linkage production lines through the processing mode that changes interior outer tube, have advantages such as preparation simple process, with low costs.
Drawings
Fig. 1 is a schematic structural view of a pipe body according to an embodiment of the present invention;
FIG. 2 is a schematic view of a tube body in an extended state when the tube body is connected to a pressurized water source and filled with water according to an embodiment of the present invention;
FIG. 3 is a view showing the original contraction state of the retractable water pipe of the present invention during use;
FIG. 4 is a semi-stretching state diagram of the water pipe of the present invention during use;
FIG. 5 is a view showing the fully extended and stretched state of the retractable water pipe of the present invention during use;
fig. 6 is a cross-sectional view of a tube body according to an embodiment of the present invention;
fig. 7 is a cross-sectional view of a tube body according to an embodiment of the present invention;
fig. 8 is a cross-sectional view of a tubular body according to an embodiment of the present invention;
fig. 9 is a schematic structural view illustrating a connection between an external connector structure and an embodiment of the present invention;
fig. 10 is a schematic structural view illustrating a connection between an external connector structure and an embodiment of the present invention;
fig. 11 is a schematic structural view illustrating a connection between an external connector structure and an embodiment of the present invention;
fig. 12 is a schematic structural view illustrating a connection between an external connector structure and an embodiment of the present invention;
fig. 13 is a schematic structural view illustrating a connection between an external connector structure according to an embodiment of the present invention;
fig. 14 is a schematic structural view illustrating a connection between an external connector structure and an embodiment of the present invention;
FIG. 15 is a schematic view of a linkage line for manufacturing the present invention;
FIG. 16 is a schematic view of a linkage line for manufacturing the present invention;
FIG. 17 is a schematic view of a linkage line for manufacturing the present invention;
fig. 18 is a schematic view of a linkage production line for manufacturing the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
A novel telescopic water pipe is characterized by comprising an elastic inner pipe 1, an elastic weaving layer 2 and an elastic outer layer 3 which are sequentially arranged; the elastic braided layer is wrapped outside the elastic inner tube, the elastic outer layer is wrapped outside the elastic braided layer and the elastic inner tube, the elastic braided layer and the elastic outer layer are tightly attached to form a tube body 10;
the elastic woven layer comprises a yarn woven layer 21 formed by obliquely crossing yarns, and radial elastic yarns 22 are symmetrically distributed in the yarn woven layer.
Further, the elastic yarns are wrapped by the yarn weaving layers, and the elastic weaving layers can limit transverse expansion and achieve longitudinal extension.
Further, the transverse direction of the elastic weaving layer can bear 8 kilograms of pressure, under the action of 6 kilograms of water pressure, the longitudinal length of the elastic weaving layer is extended to 4.6 times of the original longitudinal length, and the longitudinal limit extension length of the elastic weaving layer is 7 times of the original longitudinal length.
Furthermore, the number of the elastic threads in the elastic weaving layer is 8, and the diameter of the elastic threads is 1.2 mm.
Furthermore, the yarn weaving layer of the elastic weaving layer is a polypropylene weaving layer, and the yarn weaving layer is formed by obliquely weaving 800D yarns. The stretchable outer diameter of the elastic braided layer is 10 mm.
Furthermore, the elastic inner tube is a thermoplastic elastic inner tube, the inner diameter of the elastic inner tube is 6mm, the outer diameter of the elastic inner tube is 9mm, and the wall thickness of the elastic inner tube is 1.5 mm.
Furthermore, the elastic outer layer is a thermoplastic elastic outer layer, and the thickness of the elastic outer layer is 1 mm.
Furthermore, the novel telescopic water pipe also comprises joints 4, and the joints are respectively arranged at two ends of the pipe body; the joint comprises a convex connecting piece 41, a buckle 42 and a loose joint thread locking piece 43, the convex connecting piece is arranged in the elastic inner pipe, the buckle is of a claw type structure, the buckle is arranged on the outer side of the elastic inner pipe, the loose joint thread locking piece is arranged on the outer side of the buckle, and the loose joint thread locking piece is in fit connection with the buckle to lock the elastic inner pipe on the outer side of the convex connecting piece; the male connecting piece is of a hollow structure and comprises a body 411 and a boss 412 which are connected, the tail end of the boss is symmetrically provided with an arc-shaped limiting part 413, and the outer side of the body is provided with a threaded part 414; the threaded part is connected with the loose joint threaded locking part in a matched mode. The joint is provided with a through hole 44 which communicates with the elastic inner tube, the joint being able to be connected to an external water source or water using means.
Further, the connector is provided with one of the following external connector structures at the end far away from the pipe body: a quick-connect coupling 5, an internal thread coupling 6 or an external thread coupling 7.
Example 2
A novel telescopic water pipe is characterized by comprising an elastic inner pipe 1, an elastic weaving layer 2 and an elastic outer layer 3 which are sequentially arranged; the elastic braided layer is wrapped outside the elastic inner tube, the elastic outer layer is wrapped outside the elastic braided layer and the elastic inner tube, the elastic braided layer and the elastic outer layer are tightly attached to form a tube body 10;
the elastic woven layer comprises a yarn woven layer 21 formed by obliquely crossing yarns, and radial elastic yarns 22 are symmetrically distributed in the yarn woven layer.
Further, the elastic yarns are wrapped by the yarn weaving layers, and the elastic weaving layers can limit transverse expansion and achieve longitudinal extension.
Further, the transverse direction of the elastic weaving layer can bear 10 kilograms of pressure, under the action of 8 kilograms of water pressure, the longitudinal length of the elastic weaving layer is extended to be 3 times of the original longitudinal length, and the longitudinal limit extension length of the elastic weaving layer is 4.5 times of the original longitudinal length.
Furthermore, the number of the elastic yarns in the elastic weaving layer is 16, and the diameter of each elastic yarn is 0.7 mm. The stretchable outer diameter of the elastic braided layer is 13 mm.
Furthermore, the yarn weaving layer of elasticity weaving layer is the dacron weaving layer, the yarn weaving layer is woven by 600D yarn skew.
Furthermore, the elastic inner tube is a thermoplastic elastic inner tube, the inner diameter of the elastic inner tube is 9mm, the outer diameter of the elastic inner tube is 12mm, and the wall thickness of the elastic inner tube is 1.5 mm.
Furthermore, the elastic outer layer is a thermoplastic elastic outer layer, and the thickness of the elastic outer layer is 2 mm.
Furthermore, the novel telescopic water pipe also comprises joints 4, and the joints are respectively arranged at two ends of the pipe body; the joint comprises a convex connecting piece 41, a buckle 42 and a loose joint thread locking piece 43, the convex connecting piece is arranged in the elastic inner pipe, the buckle is of a claw type structure, the buckle is arranged on the outer side of the elastic inner pipe, the loose joint thread locking piece is arranged on the outer side of the buckle, and the loose joint thread locking piece is in fit connection with the buckle to lock the elastic inner pipe on the outer side of the convex connecting piece; the male connecting piece is of a hollow structure and comprises a body 411 and a boss 412 which are connected, the tail end of the boss is symmetrically provided with an arc-shaped limiting part 413, and the outer side of the body is provided with a threaded part 414; the threaded part is connected with the loose joint threaded locking part in a matched mode. The joint is provided with a through hole 44 which communicates with the elastic inner tube, the joint being able to be connected to an external water source or water using means.
Further, the connector is provided with one of the following external connector structures at the end far away from the pipe body: a quick-connect coupling 5, an internal thread coupling 6 or an external thread coupling 7.
Example 3
A novel telescopic water pipe is characterized by comprising an elastic inner pipe 1, an elastic weaving layer 2 and an elastic outer layer 3 which are sequentially arranged; the elastic braided layer is wrapped outside the elastic inner tube, the elastic outer layer is wrapped outside the elastic braided layer and the elastic inner tube, the elastic braided layer and the elastic outer layer are tightly attached to form a tube body 10;
the elastic woven layer comprises a yarn woven layer 21 formed by obliquely crossing yarns, and radial elastic yarns 22 are symmetrically distributed in the yarn woven layer.
Further, the elastic yarns are wrapped by the yarn weaving layers, and the elastic weaving layers can limit transverse expansion and achieve longitudinal extension.
Further, the transverse direction of the elastic knitted layer can bear 30 kilograms of pressure, under the action of 15 kilograms of water pressure, the longitudinal length of the elastic knitted layer is extended to be 1.8 times of the original longitudinal length, and the longitudinal limit extension length of the elastic knitted layer is 3 times of the original longitudinal length.
Furthermore, the number of the elastic threads in the elastic weaving layer is 48, and the diameter of the elastic threads is 2 mm. The stretchable outer diameter of the elastic braided layer is 34 mm.
Furthermore, the yarn weaving layer of the elastic weaving layer is a nylon weaving layer, and the yarn weaving layer is formed by obliquely weaving 3000D yarns.
Furthermore, the elastic inner tube is a rubber inner tube, the inner diameter of the elastic inner tube is 20mm, the outer diameter of the elastic inner tube is 30mm, and the wall thickness of the elastic inner tube is 5 mm.
Furthermore, the elastic outer layer is a rubber outer layer, and the thickness of the elastic outer layer is 4 mm.
Furthermore, the novel telescopic water pipe also comprises joints 4, and the joints are respectively arranged at two ends of the pipe body; the joint comprises a convex connecting piece 41, a buckle 42 and a loose joint thread locking piece 43, the convex connecting piece is arranged in the elastic inner pipe, the buckle is of a claw type structure, the buckle is arranged on the outer side of the elastic inner pipe, the loose joint thread locking piece is arranged on the outer side of the buckle, and the loose joint thread locking piece is in fit connection with the buckle to lock the elastic inner pipe on the outer side of the convex connecting piece; the male connecting piece is of a hollow structure and comprises a body 411 and a boss 412 which are connected, the tail end of the boss is symmetrically provided with an arc-shaped limiting part 413, and the outer side of the body is provided with a threaded part 414; the threaded part is connected with the loose joint threaded locking part in a matched mode. The joint is provided with a through hole 44 which communicates with the elastic inner tube, the joint being able to be connected to an external water source or water using means.
Further, the connector is provided with one of the following external connector structures at the end far away from the pipe body: a quick-connect coupling 5, an internal thread coupling 6 or an external thread coupling 7.
Example 4
A novel telescopic water pipe is characterized by comprising an elastic inner pipe 1, an elastic weaving layer 2 and an elastic outer layer 3 which are sequentially arranged; the elastic braided layer is wrapped outside the elastic inner tube, the elastic outer layer is wrapped outside the elastic braided layer and the elastic inner tube, the elastic braided layer and the elastic outer layer are tightly attached to form a tube body 10;
the elastic woven layer comprises a yarn woven layer 21 formed by obliquely crossing yarns, and radial elastic yarns 22 are symmetrically distributed in the yarn woven layer.
Further, the elastic yarns are wrapped by the yarn weaving layers, and the elastic weaving layers can limit transverse expansion and achieve longitudinal extension.
Furthermore, the transverse direction of the elastic weaving layer can bear 20 kilograms of pressure, under the action of 10 kilograms of water pressure, the longitudinal length of the elastic weaving layer is extended to 2.5 times of the original longitudinal length, and the longitudinal limit extension length of the elastic weaving layer is 4 times of the original longitudinal length.
Furthermore, the number of the elastic threads in the elastic weaving layer is 24, and the diameter of the elastic threads is 1 mm. The stretchable outer diameter of the elastic braided layer is 18 mm.
Furthermore, the yarn weaving layer of the elastic weaving layer is an acrylic weaving layer, and the yarn weaving layer is formed by obliquely weaving 1000D yarns.
Furthermore, the elastic inner tube is a rubber inner tube, the inner diameter of the elastic inner tube is 12mm, the outer diameter of the elastic inner tube is 16mm, and the wall thickness of the elastic inner tube is 2 mm.
Furthermore, the elastic outer layer is a rubber outer layer, and the thickness of the elastic outer layer is 2 mm.
Furthermore, the novel telescopic water pipe also comprises joints 4, and the joints are respectively arranged at two ends of the pipe body; the joint comprises a convex connecting piece 41, a buckle 42 and a loose joint thread locking piece 43, the convex connecting piece is arranged in the elastic inner pipe, the buckle is of a claw type structure, the buckle is arranged on the outer side of the elastic inner pipe, the loose joint thread locking piece is arranged on the outer side of the buckle, and the loose joint thread locking piece is in fit connection with the buckle to lock the elastic inner pipe on the outer side of the convex connecting piece; the male connecting piece is of a hollow structure and comprises a body 411 and a boss 412 which are connected, the tail end of the boss is symmetrically provided with an arc-shaped limiting part 413, and the outer side of the body is provided with a threaded part 414; the threaded part is connected with the loose joint threaded locking part in a matched mode. The joint is provided with a through hole 44 which communicates with the elastic inner tube, the joint being able to be connected to an external water source or water using means.
Further, the connector is provided with one of the following external connector structures at the end far away from the pipe body: a quick-connect coupling 5, an internal thread coupling 6 or an external thread coupling 7.
Example 5
A novel telescopic water pipe is characterized by comprising an elastic inner pipe 1, an elastic weaving layer 2 and an elastic outer layer 3 which are sequentially arranged; the elastic braided layer is wrapped outside the elastic inner tube, the elastic outer layer is wrapped outside the elastic braided layer and the elastic inner tube, the elastic braided layer and the elastic outer layer are tightly attached to form a tube body 10;
the elastic woven layer comprises a yarn woven layer 21 formed by obliquely crossing yarns, and radial elastic yarns 22 are symmetrically distributed in the yarn woven layer.
Further, the elastic yarns are wrapped by the yarn weaving layers, and the elastic weaving layers can limit transverse expansion and achieve longitudinal extension.
Further, the transverse direction of the elastic weaving layer can bear 15 kilograms of pressure, under the action of 7 kilograms of water pressure, the longitudinal length of the elastic weaving layer is extended to 1.5 times of the original longitudinal length, and the longitudinal limit extension length of the elastic weaving layer is 2.5 times of the original longitudinal length.
Furthermore, the number of the elastic threads in the elastic weaving layer is 96, and the diameter of the elastic threads is 1.5 mm.
Furthermore, the yarn weaving layer of elasticity weaving layer is the polypropylene weaving layer, the yarn weaving layer is woven by 5000D's yarn skew.
Furthermore, the elastic inner tube is a thermoplastic elastic inner tube, the inner diameter of the elastic inner tube is 72mm, the outer diameter of the elastic inner tube is 86mm, and the wall thickness of the elastic inner tube is 8 mm.
Furthermore, the elastic outer layer is a rubber outer layer, and the thickness of the elastic outer layer is 5 mm.
Furthermore, the novel telescopic water pipe also comprises joints 4, and the joints are respectively arranged at two ends of the pipe body; the joint comprises a convex connecting piece 41, a buckle 42 and a loose joint thread locking piece 43, the convex connecting piece is arranged in the elastic inner pipe, the buckle is of a claw type structure, the buckle is arranged on the outer side of the elastic inner pipe, the loose joint thread locking piece is arranged on the outer side of the buckle, and the loose joint thread locking piece is in fit connection with the buckle to lock the elastic inner pipe on the outer side of the convex connecting piece; the male connecting piece is of a hollow structure and comprises a body 411 and a boss 412 which are connected, the tail end of the boss is symmetrically provided with an arc-shaped limiting part 413, and the outer side of the body is provided with a threaded part 414; the threaded part is connected with the loose joint threaded locking part in a matched mode. The joint is provided with a through hole 44 which communicates with the elastic inner tube, the joint being able to be connected to an external water source or water using means.
Further, the connector is provided with one of the following external connector structures at the end far away from the pipe body: a quick-connect coupling 5, an internal thread coupling 6 or an external thread coupling 7.
Example 6
A novel telescopic water pipe is characterized by comprising an elastic inner pipe 1, an elastic weaving layer 2 and an elastic outer layer 3 which are sequentially arranged; the elastic braided layer is wrapped outside the elastic inner tube, the elastic outer layer is wrapped outside the elastic braided layer and the elastic inner tube, the elastic braided layer and the elastic outer layer are tightly attached to form a tube body 10;
the elastic woven layer comprises a yarn woven layer 21 formed by obliquely crossing yarns, and radial elastic yarns 22 are symmetrically distributed in the yarn woven layer.
Further, the elastic yarns are wrapped by the yarn weaving layers, and the elastic weaving layers can limit transverse expansion and achieve longitudinal extension.
Furthermore, the transverse direction of the elastic weaving layer can bear 25 kilograms of pressure, under the action of 15 kilograms of water pressure, the longitudinal length of the elastic weaving layer is extended to be 3.5 times of the original longitudinal length, and the longitudinal limit extension length of the elastic weaving layer is 5.5 times of the original longitudinal length.
Furthermore, the number of the elastic threads in the elastic weaving layer is 48, and the diameter of the elastic threads is 1.2 mm.
Furthermore, the yarn weaving layer of the elastic weaving layer is a nylon weaving layer, and the yarn weaving layer is formed by obliquely weaving 500D yarns.
Furthermore, the elastic inner tube is a rubber inner tube, the inner diameter of the elastic inner tube is 40mm, the outer diameter of the elastic inner tube is 52mm, and the wall thickness of the elastic inner tube is 6 mm.
Furthermore, the elastic outer layer is a thermoplastic elastic outer layer, and the thickness of the elastic outer layer is 5 mm.
Furthermore, the novel telescopic water pipe also comprises joints 4, and the joints are respectively arranged at two ends of the pipe body; the joint comprises a convex connecting piece 41, a buckle 42 and a loose joint thread locking piece 43, the convex connecting piece is arranged in the elastic inner pipe, the buckle is of a claw type structure, the buckle is arranged on the outer side of the elastic inner pipe, the loose joint thread locking piece is arranged on the outer side of the buckle, and the loose joint thread locking piece is in fit connection with the buckle to lock the elastic inner pipe on the outer side of the convex connecting piece; the male connecting piece is of a hollow structure and comprises a body 411 and a boss 412 which are connected, the tail end of the boss is symmetrically provided with an arc-shaped limiting part 413, and the outer side of the body is provided with a threaded part 414; the threaded part is connected with the loose joint threaded locking part in a matched mode. The joint is provided with a through hole 44 which communicates with the elastic inner tube, the joint being able to be connected to an external water source or water using means.
Further, the connector is provided with one of the following external connector structures at the end far away from the pipe body: a quick-connect coupling 5, an internal thread coupling 6 or an external thread coupling 7.
Example 7
A method for manufacturing the novel telescopic water pipe applied to the embodiments 1 to 6 is characterized by comprising the following steps:
(1) preparing an elastic inner tube: preparing an elastic inner tube by adopting an extrusion production mode;
(2) preparing an elastic braid layer on the outer side of the elastic inner tube: after the elastic yarn is stretched 6 times in the original state by a knitting machine, the elastic yarn and the yarn are knitted simultaneously, synchronously, the prepared elastic inner tube is sent into the knitting machine in a natural state, and a yarn knitting layer formed by obliquely crossing the knitted elastic yarn and the yarn retracts to the natural state along with the elastic inner tube, so that a stretchable elastic knitting layer can be formed outside the elastic inner tube;
(3) preparing an elastic outer layer: and extruding the elastic inner tube coated by the elastic braided layer to form an elastic outer layer on the surface of the elastic inner tube, and at the moment, tightly combining the elastic outer layer with the elastic braided layer and the elastic inner tube in sequence to obtain the tube body.
Further, the manufacturing method also comprises the step of performing linkage production or sectional production by using the extruder 20, the knitting machine 30 and the coating machine 40, wherein the linkage production is a production line by using the extruder, the knitting machine and the extruder, and the detailed description is provided in fig. 18.
Example 8
A method for manufacturing the novel telescopic water pipe applied to the embodiments 1 to 6 is characterized by comprising the following steps:
(1) preparing an elastic inner tube: preparing an elastic inner tube by adopting an extrusion production mode;
(2) preparing an elastic braid layer on the outer side of the elastic inner tube: after stretching the elastic yarns by 2 times in the original state by a knitting machine, knitting the elastic yarns simultaneously, synchronously feeding the prepared elastic inner tube into the knitting machine in a natural state, and retracting a yarn knitting layer formed by obliquely crossing the knitted elastic yarns and the yarns to the natural state along with the elastic inner tube to form a stretchable elastic knitting layer outside the elastic inner tube;
(3) preparing an elastic outer layer: and (3) forming an elastic outer layer on the surface of the elastic inner tube coated by the elastic braided layer in a coating mode, and at the moment, tightly combining the elastic outer layer with the elastic braided layer and the elastic inner tube in sequence to obtain the tube body.
Further, the manufacturing method also comprises a linkage production or a sectional production by using the extruder 20, the knitting machine 30 and the coating machine 40, wherein the linkage production adopts a production line of the extruder, the knitting machine and the coating machine, and is shown in detail in fig. 16.
Example 9
A method for manufacturing the novel telescopic water pipe applied to the embodiments 1 to 6 is characterized by comprising the following steps:
(1) preparing an elastic inner tube: preparing an elastic inner tube by adopting a coating production mode;
(2) preparing an elastic braid layer on the outer side of the elastic inner tube: after the elastic yarn is stretched by 4 times in the original state by a knitting machine, the elastic yarn and the yarn are knitted simultaneously, synchronously, the prepared elastic inner tube is sent into the knitting machine in a natural state, and a yarn knitting layer formed by obliquely crossing the knitted elastic yarn and the yarn retracts to the natural state along with the elastic inner tube, so that a stretchable elastic knitting layer can be formed outside the elastic inner tube;
(3) preparing an elastic outer layer: and (3) forming an elastic outer layer on the surface of the elastic inner tube coated by the elastic braided layer in a coating mode, and at the moment, tightly combining the elastic outer layer with the elastic braided layer and the elastic inner tube in sequence to obtain the tube body.
Further, the manufacturing method also comprises the step of performing linkage production or sectional production by using the extruder 20, the knitting machine 30 and the coating machine 40, wherein the linkage production adopts a production line of the coating machine-the knitting machine-the coating machine, and the detail is shown in fig. 15.
Example 10
A method for manufacturing the novel telescopic water pipe applied to the embodiments 1 to 6 is characterized by comprising the following steps:
(1) preparing an elastic inner tube: preparing an elastic inner tube by adopting a coating production mode;
(2) preparing an elastic braid layer on the outer side of the elastic inner tube: after the elastic yarn is stretched by 7 times in the original state by a knitting machine, the elastic yarn and the yarn are knitted simultaneously, synchronously, the prepared elastic inner tube is sent into the knitting machine in a natural state, and a yarn knitting layer formed by obliquely crossing the knitted elastic yarn and the yarn retracts to the natural state along with the elastic inner tube, so that a stretchable elastic knitting layer can be formed outside the elastic inner tube;
(3) preparing an elastic outer layer: and extruding the elastic inner tube coated by the elastic braided layer to form an elastic outer layer on the surface of the elastic inner tube, and at the moment, tightly combining the elastic outer layer with the elastic braided layer and the elastic inner tube in sequence to obtain the tube body.
Further, the manufacturing method also comprises the step of performing linkage production or sectional production by using the extruder 20, the knitting machine 30 and the coating machine 40, wherein the linkage production adopts a production line of the coating machine-knitting machine-extruder, and the detail is shown in fig. 17.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention. In particular, all technical details of the present invention, which are not described in detail, can be implemented by any prior art.