WO2022001157A1 - Ensemble tube tressé - Google Patents

Ensemble tube tressé Download PDF

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Publication number
WO2022001157A1
WO2022001157A1 PCT/CN2021/079505 CN2021079505W WO2022001157A1 WO 2022001157 A1 WO2022001157 A1 WO 2022001157A1 CN 2021079505 W CN2021079505 W CN 2021079505W WO 2022001157 A1 WO2022001157 A1 WO 2022001157A1
Authority
WO
WIPO (PCT)
Prior art keywords
connecting rod
outer side
inner tube
shoulder
joint
Prior art date
Application number
PCT/CN2021/079505
Other languages
English (en)
Chinese (zh)
Inventor
黄树堂
赵增虎
蔡星星
Original Assignee
菲时特集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 菲时特集团股份有限公司 filed Critical 菲时特集团股份有限公司
Publication of WO2022001157A1 publication Critical patent/WO2022001157A1/fr

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Classifications

    • 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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
    • 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
    • F16L33/18—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses characterised by the use of additional sealing means
    • 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
    • F16L33/30—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses comprising parts inside the hoses only

Definitions

  • the utility model belongs to the technical field of pipe fittings, and relates to a braided pipe assembly.
  • Braided tube is a type of hose and is widely used in pipelines that require flexible connections.
  • the braided tube includes an inner tube, and the outer side of the inner tube is provided with a stainless steel braided layer or a nylon braided layer to protect the inner tube.
  • the braided tube will be assembled in a factory to form a braided tube assembly.
  • the braided tube assembly includes a braided tube body and joints fixed at both ends of the braided tube body.
  • Ciobium patent literature publicly proposes a stainless steel braided tube [application number: CN 201020284271.1; publication number: CN201757232 U], which is composed of a gasket, an inner tube, a nut, a core, a braided layer, and a steel sleeve.
  • the core includes an end part that is integrated into one body and a connecting rod located below the end part, there is a buckle between the end part and the connecting rod, and the outer surface of the connecting rod has an inverted tooth shape structure.
  • the nut is sleeved on the core, and the buckle forms a snap connection with the shoulder.
  • the end of the core is equipped with a washer, the connecting rod of the core is tightly sleeved with the inner tube, the inner tube is covered with a braided layer, and a steel sleeve is fastened on the outside of the braided layer at the connection between the core and the inner tube.
  • the sub and the inner tube are tightly connected by stamping.
  • the inner tube After the steel sleeve, the core and the inner tube are tightly connected by stamping, the inner tube will form a corresponding toothed structure at the inverted toothed structure on the core connecting rod, so as to produce an anti-separation effect and make the core and the inner tube. Tightly fastened.
  • the inner tube is made of flexible polymer materials, such as rubber, PVC, PEX, etc. After the inner tube is stamped and deformed, it will closely adhere to the outer surface of the core, thereby producing a sealing effect. The sealing effect produced by itself avoids water leakage at the connection between the inner tube and the core.
  • some polymer materials, such as PVC materials will harden in low temperature environments such as northern winter, resulting in a decrease in their sealing performance. Therefore, in a low temperature environment, due to the decrease in the sealing performance of the inner tube itself, the connection between the inner tube and the core is very easy. Water leakage occurs, resulting in waste of resources and loss of property.
  • This utility model is to solve the above problems existing in the prior art, and propose a braided tube assembly, which solves the technical problem that the joint connection of the existing braided tube assembly is prone to liquid leakage in a low temperature environment.
  • a braided tube assembly includes a braided tube body, a left joint and a right joint, the left joint is fixed on the left end of the braided tube body, the right joint is fixed on the right end of the braided tube body, and the braided tube body includes an inner tube and a braided layer arranged on the outer side of the inner tube, the left joint includes a left connecting rod inserted into the inner tube and a left snap portion located outside the inner tube, and the right joint includes a right connection inserted into the inner tube
  • the rod and the right snap portion located outside the inner tube, the outer side of the left connecting rod and the outer side of the right connecting rod are in contact with the inner side of the inner pipe, the outer side of the left connecting rod and the right connecting rod
  • There are serrations on the outer side of the inner tube positioning grooves corresponding to the serrations are arranged on the inner side of the inner tube, the serrations are embedded in the corresponding positioning grooves, and a left nut and a left nut are sle
  • the left sealing washer, the right nut and the right sealing washer are sleeved on the right snap part, and it is characterized in that a protruding convex ring is provided on the outer surface of the left connecting rod and the outer surface of the right connecting rod , the inner surface of the inner tube has a groove corresponding to the convex ring, the convex ring is embedded in the corresponding groove, and the outer surface of the convex ring is provided with an annular fixing groove, the fixing A sealing ring made of EPDM rubber is fixed in the groove, and the outer surface of the sealing ring abuts against the bottom surface of the groove and forms a seal.
  • the serrations are embedded in the positioning groove and the convex ring is embedded in the groove, so that the left joint and the right joint are firmly fixed in the inner pipe, and the liquid leakage caused by the left joint and the right joint coming out of the inner pipe is prevented.
  • the sealing ring is fixed in the fixing groove to ensure that the sealing ring will not be displaced when the left joint and the right joint are installed in the inner pipe, which ensures the accuracy of the position of the sealing ring, and enables the sealing ring to abut against the inner pipe to form a seal.
  • the positioning grooves and grooves in the inner tube will not disappear.
  • the positioning grooves and serrations, as well as the convex ring and the groove can keep the left and right joints fixed in the inner tube , which can prevent liquid leakage caused by the left and right joints coming out of the inner tube.
  • the sealing ring is made of EPDM rubber, which maintains good elasticity at low temperature, and the sealing ring can continue to stick to the bottom surface of the groove to maintain sealing. Therefore, in the braided tube assembly, the connection between the left joint and the inner tube and the connection between the right joint and the inner tube are not prone to liquid leakage in a low temperature environment.
  • the inner surface of the sealing ring is a cylindrical surface
  • the outer surface of the sealing ring is a circular arc surface that protrudes outward
  • the inner surface of the sealing ring is abutted against the fixed groove. underside and form a seal. In this way, the sealing effect of the sealing ring is better, and the braided tube assembly is less prone to liquid leakage in a low temperature environment.
  • the outer surface of the right snap portion has a protruding right shoulder
  • the inner surface of the left end of the right nut has a protruding right shoulder
  • the right shoulder It is located between the inner tube and the right shoulder and can abut on the right shoulder
  • the right sealing washer is located on the right side of the right shoulder
  • the inner side of the right sealing washer abuts against the outer side of the right snap portion to form a seal
  • the left end face of the right sealing washer abuts on the right end face of the right shoulder to form a seal
  • an annular gap is formed between the inner side of the right nut and the outer side of the right shoulder
  • the The left end surface of the right sealing gasket has a protruding annular protrusion
  • the annular protrusion is inserted into the annular gap
  • the inner side of the annular protrusion abuts on the outer side of the right shoulder to form a seal.
  • the arrangement of the convex ring on the right sealing gasket further improves the sealing performance at the right joint, so that the braided tube assembly is less prone to liquid leakage.
  • guide heads are provided on the left end of the right connecting rod and on the right end of the left connecting rod, and a tapered guide surface is provided on the outer side of the guide head.
  • the head is connected with the convex ring, and the guide surface does not protrude from the outer side surface of the convex ring.
  • the guide head has a guiding function, so that the right connecting rod and the left connecting rod can be smoothly installed into the inner pipe when the braided pipe assembly is assembled.
  • a right snap groove is provided on the outer side of the right snap portion on the right side of the right shoulder, and the inner side of the right sealing gasket has a protruding right positioning ring, so The right positioning ring is embedded in the right clamping groove, and the inner surface of the right positioning ring abuts against the bottom surface of the right clamping groove to form a seal.
  • the right slot and the right positioning ring have a positioning function, so that the right sealing washer can be fixed on the right joint stably, preventing the right sealing washer from falling off during transportation and causing the right joint and the pipe fittings to be unable to form a seal during installation, ensuring the right joint is sealed. sex.
  • a chamfer is provided between the right end surface of the right snap portion and the outer side surface of the right snap portion.
  • the chamfer has a guiding function, and it is convenient to put the right sealing gasket on the right snap part.
  • the left connecting rod and the right connecting rod are both provided with a convex ring, the outer surface of the convex ring is provided with a positioning groove, the sealing ring is fixed in the fixing groove, and the outer surface of the sealing ring is abutted on the inner surface of the inner tube and forms It is sealed, so that the left joint connection and the right joint connection of the braided tube assembly are not easy to leak in the low temperature environment, so that the braided tube assembly can be used stably.
  • the sealing ring is a special-shaped structure, which improves the sealing performance.
  • the right sealing gasket is provided with an annular protrusion, which improves the sealing performance at the right joint.
  • the provision of the guide head makes it easier to insert the left connecting rod and the right connecting rod into the inner tube during the assembly stage.
  • the setting of the right snap groove and the right positioning ring makes the right sealing washer more stably fixed on the right joint.
  • Fig. 2 is an enlarged view of the left joint in Fig. 1;
  • FIG. 3 is an enlarged view of the right joint in FIG. 1 .
  • a braided tube assembly includes a braided tube body 1, a left joint 2 and a right joint 6.
  • the left joint 2 is fixed on the left end of the braided tube body 1
  • the right joint 6 is fixed on the braided tube body. 1's right end.
  • the braided tube body 1 includes an inner tube 1a and a braided layer 1b arranged on the outer side of the inner tube 1a.
  • the inner tube 1a is made of PVC material. In a normal temperature environment, the inner tube 1a is a hose. In a low temperature environment such as northern winter The inner tube 1a will become a rigid tube.
  • the braided layer 1b is made of nylon material, such as acrylic filament.
  • the left joint 2 and the right joint 6 are made of metallic material, such as copper or stainless steel.
  • the left joint 2 includes a left connecting rod 2a inserted into the left end of the inner pipe 1a and a left snap portion 2b located outside the inner pipe 1a
  • the right joint 6 includes a right connecting rod 6a inserted into the right end of the inner pipe 1a and located in the inner pipe 1a
  • the outer right snap portion 6b The left end of the braided tube body 1 is covered with a left steel sleeve 3 which is arranged opposite to the left connecting rod 2a.
  • the left steel sleeve 3 cooperates with the left connecting rod 2a to clamp the tube wall at the left end of the braided tube body 1, and the right end of the braided tube body 1 is sheathed.
  • the right steel sleeve 7 disposed opposite to the right connecting rod 6a, and the right steel sleeve 7 cooperates with the right connecting rod 6a to clamp the pipe wall at the right end of the braided pipe body 1 .
  • the outer side of the left connecting rod 2a and the outer side of the right connecting rod 6a are in contact with the inner side of the inner tube 1a.
  • the inner surface of 1a has positioning grooves 1a1 corresponding to the serrations 10, and the serrations 10 are embedded in the corresponding positioning grooves 1a1.
  • the right end of the left connecting rod 2a and the left end of the right connecting rod 6a are provided with guide heads 11, and the guide heads 11 are provided with a tapered guide surface 11a.
  • the outer surface of the left connecting rod 2a and the outer surface of the right connecting rod 6a are provided with a protruding convex ring 12, and the inner surface of the inner tube 1a has a groove 1a2 corresponding to the convex ring 12, and the convex ring 12 is embedded in the groove 1a2. in the corresponding groove 1a2.
  • the guide head 11 On the left connecting rod 2a, the guide head 11 is connected with the convex ring 12 and the guide surface 11a does not protrude from the outer side of the convex ring 12; on the right connecting rod 6a, the guide head 11 is connected with the convex ring 12 and the guide surface 11a does not protrude out of the outer side of the convex ring 12 .
  • An annular fixing groove 12a is opened on the outer surface of the convex ring 12, and a sealing ring 13 made of EPDM rubber is fixed in the fixing groove 12a.
  • the inner surface of the sealing ring 13 is a cylindrical surface
  • the outer surface of the sealing ring 13 is an arc surface protruding outward
  • the inner surface of the sealing ring 13 abuts against the bottom surface of the fixing groove 12a to form a seal.
  • a left nut 4 and a left sealing washer 5 are sleeved on the left snap portion 2b.
  • the outer side of the left snap portion 2b has a protruding left shoulder 2b1
  • the inner side of the right end of the left nut 4 has a protruding left shoulder 4a
  • the left shoulder 4a is located between the inner tube 1a and the left shoulder 2b1. and can abut on the left shoulder 2b1.
  • the left sealing washer 5 is located on the left side of the left shoulder 2b1, and the right end face of the left sealing washer 5 abuts against the left end face of the left shoulder 2b1 to form a seal.
  • a left snap groove 2b2 is provided on the left side of the left shoulder 2b1, the inner side of the left sealing gasket 5 is embedded in the left snap groove 2b2, and the inner side of the left gasket 5
  • the bottom surface of the left card slot 2b2 forms a seal.
  • a chamfer is provided between the left end surface of the left snap portion 2b and the outer side surface of the left snap portion 2b, which facilitates the installation of the left sealing gasket 5 on the left snap portion 2b.
  • a right nut 8 and a right sealing washer 9 are fitted on the right snap portion 6b.
  • the outer side of the right snap portion 6b has a protruding right shoulder 6b1
  • the inner side of the left end of the right nut 8 has a protruding right shoulder 8a
  • the right shoulder 8a is located between the inner tube 1a and the right shoulder 6b1. and can abut on the right shoulder 6b1.
  • the right sealing washer 9 is located on the right side of the right shoulder 6b1, the inner side of the right sealing washer 9 abuts on the outer side of the right snap portion 6b and forms a seal
  • the left end face of the right sealing washer 9 is abutted against the right shoulder 6b1 on the right end face and form a seal.
  • annular gap 14 between the inner surface of the right nut 8 and the outer surface of the right shoulder 6b1, and the left end surface of the right sealing washer 9 has a protruding annular protrusion 9a, and the annular protrusion 9a is inserted into the annular gap 14, The inner side of the annular protrusion 9a abuts against the outer side of the right shoulder 6b1 and forms a seal.
  • the right shoulder 8a abuts on the right shoulder 6b1
  • the left end face of the annular protrusion 9a abuts against the right shoulder 8a and form a seal.
  • a right locking groove 6b2 is provided on the outer side of the right snap portion 6b on the right side of the right shoulder 6b1, and a right positioning ring 9b is protruded on the inner side of the right sealing gasket 9, and the right positioning ring 9b is embedded in the right locking groove 6b2, and the inner surface of the right positioning ring 9b abuts against the bottom surface of the right locking groove 6b2 to form a seal.
  • a chamfer is also provided between the right end surface of the right snap portion 6b and the outer surface of the right snap portion 6b, which facilitates the installation of the right sealing gasket 9 on the right snap portion 6b.
  • the serrations 10 are embedded in the positioning groove 1a1, and the convex ring 12 is embedded in the groove 1a2, so that the left joint 2 and the right joint 6 are firmly fixed in the inner tube 1a, preventing the left joint 2 and the right joint. 6. Liquid leakage caused by the escape of the inner tube 1a.
  • the sealing ring 13 is fixed in the fixing groove 12a. When the left joint 2 and the right joint 6 are inserted into the inner tube 1a, the sealing ring 13 is not displaced, the accuracy of the position of the sealing ring 13 is ensured, and the sealing ring 13 can be connected with the inner tube 1a.
  • the inner tube 1a abuts to form a seal.
  • the inner side of the inner tube 1a abuts against the outer side of the left connecting rod 2a to form a seal
  • the inner side of the inner pipe 1a abuts against the outer side of the right connecting rod 6a to form a seal.
  • the outer side is abutting on the bottom surface of the groove 1a2 to form a seal, which can ensure that the connection between the left joint 2 and the inner tube 1a and the connection between the right joint 6 and the inner tube 1a have sufficient seal to prevent liquid leakage.
  • the positioning groove 1a1 and the groove 1a2 in the inner tube 1a will not disappear.
  • the right joint 6 remains fixed in the inner tube 1a, which can prevent the liquid leakage caused by the left joint 2 and the right joint 6 coming out of the inner tube 1a.
  • the sealing ring 13 is made of EPDM rubber, which maintains good elasticity at low temperature, and the sealing ring 13 can continue to abut against the bottom surface of the groove 1a2 to maintain sealing. Therefore, in the braided tube assembly, the connection between the left joint 2 and the inner tube 1a and the connection between the right joint 6 and the inner tube 1a are not prone to liquid leakage in a low temperature environment.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints That Cut Off Fluids, And Hose Joints (AREA)
  • Gasket Seals (AREA)

Abstract

La présente invention concerne un ensemble tube tressé. L'ensemble tube tressé comprend un corps de tube tressé (1), un joint gauche (2) et un joint droit (6). Le corps de tube tressé comprend un tube interne (1a), le joint gauche comprend une tige de raccordement gauche (2a) insérée dans le tube interne, le joint droit comprenant une tige de raccordement droite (6a) insérée dans le tube interne, une face latérale externe de la tige de raccordement gauche et une face latérale externe de la tige de raccordement droite sont chacune pourvues d'une bague convexe saillante (12), une face latérale intérieure du tube interne est pourvue d'un évidement (1a2) correspondant à la bague convexe, la bague convexe est incorporée dans l'évidement correspondant, une face latérale extérieure de la bague convexe est pourvue d'une rainure de fixation annulaire (12a), une bague d'étanchéité (13) en caoutchouc EPDM est fixée dans la rainure de fixation, et une face latérale extérieure de la bague d'étanchéité vient en butée contre la face inférieure de l'évidement pour former un joint d'étanchéité. Le raccordement du joint gauche et du tube interne et le raccordement du joint droit et du tube interne dans l'ensemble tube tressé ne sont pas sujets à une fuite de liquide dans un environnement à basse température.
PCT/CN2021/079505 2020-06-28 2021-03-08 Ensemble tube tressé WO2022001157A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202021217498.4U CN212455884U (zh) 2020-06-28 2020-06-28 一种编织管总成
CN202021217498.4 2020-06-28

Publications (1)

Publication Number Publication Date
WO2022001157A1 true WO2022001157A1 (fr) 2022-01-06

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Application Number Title Priority Date Filing Date
PCT/CN2021/079505 WO2022001157A1 (fr) 2020-06-28 2021-03-08 Ensemble tube tressé

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CN (1) CN212455884U (fr)
WO (1) WO2022001157A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN212455884U (zh) * 2020-06-28 2021-02-02 菲时特集团股份有限公司 一种编织管总成
WO2022187992A1 (fr) * 2021-03-08 2022-09-15 菲时特集团股份有限公司 Ensemble tuyau de raccordement mobile

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6099045A (en) * 1997-07-30 2000-08-08 Chemidro S.A.S. Di Del Pin Marta & C. Fitting for the connection of pipes by means of pressing
CN201757232U (zh) * 2010-08-06 2011-03-09 李华江 不锈钢编织管
CN207621541U (zh) * 2017-10-18 2018-07-17 攀钢集团工程技术有限公司 一种液压软管接头
CN208886166U (zh) * 2018-09-10 2019-05-21 广东顶尖管业科技有限公司 一种接头密封良好的软管结构
CN210014109U (zh) * 2019-05-21 2020-02-04 王子森 一种解决软管遇高温芯子与软管脱开的新型接头
CN210318881U (zh) * 2019-07-23 2020-04-14 菲时特集团股份有限公司 一种包塑不锈钢编织管总成
CN212455884U (zh) * 2020-06-28 2021-02-02 菲时特集团股份有限公司 一种编织管总成

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6099045A (en) * 1997-07-30 2000-08-08 Chemidro S.A.S. Di Del Pin Marta & C. Fitting for the connection of pipes by means of pressing
CN201757232U (zh) * 2010-08-06 2011-03-09 李华江 不锈钢编织管
CN207621541U (zh) * 2017-10-18 2018-07-17 攀钢集团工程技术有限公司 一种液压软管接头
CN208886166U (zh) * 2018-09-10 2019-05-21 广东顶尖管业科技有限公司 一种接头密封良好的软管结构
CN210014109U (zh) * 2019-05-21 2020-02-04 王子森 一种解决软管遇高温芯子与软管脱开的新型接头
CN210318881U (zh) * 2019-07-23 2020-04-14 菲时特集团股份有限公司 一种包塑不锈钢编织管总成
CN212455884U (zh) * 2020-06-28 2021-02-02 菲时特集团股份有限公司 一种编织管总成

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