WO2019169537A1 - Feuillard de cale par étayage interne, conduit correspondant, système de raccordement de conduit et procédé de raccordement de conduit - Google Patents

Feuillard de cale par étayage interne, conduit correspondant, système de raccordement de conduit et procédé de raccordement de conduit Download PDF

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Publication number
WO2019169537A1
WO2019169537A1 PCT/CN2018/078061 CN2018078061W WO2019169537A1 WO 2019169537 A1 WO2019169537 A1 WO 2019169537A1 CN 2018078061 W CN2018078061 W CN 2018078061W WO 2019169537 A1 WO2019169537 A1 WO 2019169537A1
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WIPO (PCT)
Prior art keywords
joint portion
hoop
ferrule
clamp
inner ferrule
Prior art date
Application number
PCT/CN2018/078061
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English (en)
Chinese (zh)
Inventor
于德跃
Original Assignee
于德跃
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Publication date
Application filed by 于德跃 filed Critical 于德跃
Priority to PCT/CN2018/078061 priority Critical patent/WO2019169537A1/fr
Publication of WO2019169537A1 publication Critical patent/WO2019169537A1/fr

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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
    • F16L33/20—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members
    • F16L33/213—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being expanded inside the hose

Definitions

  • the invention relates to the connection of pipelines, in particular to an inner support clamp for pipeline connection, a pipeline including the inner clamp clamp, a pipeline connection system and a pipe adopting the inner clamp type clamp Road connection method.
  • connection methods and corresponding connection mechanisms for the connection of pipelines, there are various connection methods and corresponding connection mechanisms in the prior art.
  • a common method is to provide an external thread at one end of one of the pipes, and a sleeve on the other pipe, the inner wall of the sleeve has an internal thread that is screwed with the external thread.
  • the two pipes are connected by the casing.
  • this type of connection requires that the interconnected pipes have a specific structure and size, otherwise an effective connection cannot be made.
  • a special pipe clamp for an intake and exhaust system that is, an outer clamp, includes a plastic liner 101, and a plastic ring liner 101 is externally provided with a fastening ring mechanism.
  • the fastening ring mechanism includes a collar 102 sleeved on the outside of the plastic liner 101.
  • the collar 102 is provided with a stud fastener 103, and the stud fastener 103 is provided with a fastening hole provided on the collar 102.
  • the stud fasteners are arranged in a tangential direction along the circumference of the collar.
  • the outer clamp needs to be sleeved on the outer circumference of the elastic outer tube, so that the outer tube clamps the inner tube. This does not apply to the case where the outer tube is not a flexible pipe.
  • the outer clamp protrudes outward from the outer tube, affecting the overall shape of the pipe connection, it may cause inconvenience or lack of aesthetics.
  • the present invention is directed to solving the problem that the conventional pipe connection method is difficult to handle for a pipe having no specific structure and size, and that the inelastic outer pipe cannot be effectively connected to the inner pipe.
  • the present invention provides an inner support type clamp comprising a hoop, a joint portion and an adjusting member, the hoop ring being formed into an annular shape having a first end and a second end.
  • the first end is fixedly connected to the joint portion; the second end penetrates into the joint portion; the joint portion has a passage through which the hoop can pass; the adjusting member is disposed in the joint portion for adjusting the The second end penetrates the length of the joint portion.
  • the joint portion is tubular having both ends open, and the first end of the hoop is fixed to a side wall of one end of the joint portion.
  • the adjusting member is a cylindrical workpiece, the two ends of which are rotatably hinged to the side walls of the joint portion, respectively.
  • the adjustment member is perpendicular to the plane in which the circle encircled by the hoop is located.
  • the adjusting member includes a rotating shaft, and a plurality of toothed tabs are disposed along an outer circumference thereof in a middle portion of the rotating shaft; and a plurality of adjusting holes are disposed at one side of the second end of the hoop The shape and spacing of the adjustment holes cooperate with the plurality of toothed tabs of the adjustment member.
  • a drive motor is also included, the spindle being driven by the drive motor.
  • the drive motor is controlled by means of a remote control.
  • the drive motor drives the spindle via a timing gear set.
  • the gear wheel of the speed control gear set is locked or unlocked by a locking jaw.
  • the locking cymbal is driven by an electromagnetic force.
  • the rotating shaft has a card slot near the two ends thereof, and the card slot is for engaging with the side wall of the joint portion.
  • one end surface of the rotating shaft is provided with a groove through which an external tool can rotate the rotating shaft to operate the adjusting member.
  • a locking member is also provided, which is capable of locking the second end of the hoop relative to the joint portion.
  • the locking member includes a body including a bent portion on both sides and a flat portion in the middle, and the two bent portions penetrate the first portion of the hoop through the joint portion In the adjustment hole provided on the two end sides.
  • the inner side of the bent portion is respectively provided with a protrusion, and when the bent portion penetrates the adjustment hole, the gap between the protrusion and the flat portion just receives the joint The lower side of the part.
  • the locking member interferes with the toothed paddle such that the adjustment member can only move in a direction that increases the circumference of the hoop.
  • the locking member includes a locking pin, a stopper and a tension spring; one end of the locking pin is hinged to the inner side wall of the joint portion through the pin shaft, and the other end extends To the rotating shaft edge of the adjusting member; the stopper is disposed on one side of the locking pin to block the rotation of the locking pin in one direction.
  • a tension spring is attached to the locking pin for pulling the locking pin back to the locked position.
  • the stop can be adjusted in a locked position and an unlocked position, in which it does not block the rotation of the locking member.
  • the inner side wall of the joint portion and the outer surface of the second end of the hoop are provided with a mating one-way motion locking structure, the one-way locking structure making the second end of the hoop only It can move in the direction in which the joint portion is pulled out.
  • the inner side of the left and right side walls of the joint portion is provided with a reed which protrudes toward the inner side of the joint portion, and divides the inner space of the joint portion into upper and lower halves,
  • the second end of the hoop can pass over the reed after entering the lower half and enter the upper half, and under the blocking of the reed, the second end can closely fit to the upper side of the joint
  • the inner wall of the wall is provided with a reed which protrudes toward the inner side of the joint portion, and divides the inner space of the joint portion into upper and lower halves
  • the position of the hoop near the second end is provided with a first blocking block protruding toward the center of the hoop, and the outer side wall of the joint portion is provided with a first protruding toward the center of the hoop Two blocking blocks.
  • the hoop comprises an elastic compensating mechanism.
  • the elastic compensation mechanism is a prefabricated corrugated structure.
  • a protective sleeve surrounding the hoop and the joint portion is further included.
  • the invention also provides a pipeline connection system, comprising an outer tube, an inner tube and an inner support type clamp, the inner tube has elasticity, and at least a part of the inner tube is sleeved in the outer tube, the inner support card A hoop is disposed within the inner tube and is disposed within a portion of the outer tube for outwardly extending from the portion of the inner tube such that the inner tube is in intimate contact with the outer tube.
  • the inner tube is integrated with the inner support clamp, and the inner support clamp is fixed to the inner side wall of the inner tube.
  • the invention also provides a pipeline connection system, an elastic pipeline, characterized in that an inner support clamp is fixed on the inner wall thereof.
  • the invention also provides a pipeline connection system, a pipeline connection method for tightly connecting an elastic inner tube with an outer tube, the method comprising: at least a part of the inner tube Provided in the outer tube; an inner support type clamp is disposed in the inner tube portion of the inner tube; adjusting the circumference of the inner support type clamp to make the inner tube
  • the inner tube is slid open so that the inner tube is in close contact with the outer tube, wherein the inner ferrule is the inner ferrule of any one of claims 1 to 25.
  • the invention can realize the connection of the elastic inner tube into the outer tube in an inner support manner, and has the advantages of convenient use and good versatility. Moreover, the present invention does not damage the external structure of the pipe, and is suitable for occasions having special requirements for the appearance of the pipe and the external structure.
  • FIG. 1 is a schematic view of a prior art pipeline structure connected by screwing
  • FIGS. 2A and 2B are schematic views showing a pipe connection structure based on an outer clamp according to the prior art
  • Figure 3 is a schematic view showing the installation of the inner support type clamp in the pipe connection system of the present invention.
  • FIGS 4 and 5 show the working principle of the pipe connection system of the present invention
  • FIG. 6 is a schematic structural view of an inner bracket type clamp having an adjusting member according to an embodiment of the present invention.
  • Figure 7 is a cross-sectional view taken along the dashed line in Figure 6;
  • Figure 8 is a top plan view showing the structure of the embodiment shown in Figure 6;
  • Figure 9 is a front elevational view showing the overall structure of the adjusting member of the embodiment shown in Figure 6;
  • Figure 10 is a right side view of Figure 9;
  • Figure 11 is a schematic view of an inner stay type clamp having a lock member according to a second embodiment of the present invention.
  • Figure 12 is a schematic view showing the structure of the lock member of Figure 11;
  • FIG. 13 and FIG. 14 are schematic views of an inner stay type clamp having a lock member according to a third embodiment of the present invention, which respectively show an operation state of the adjuster at different positions;
  • Fig. 15 is a view showing the structure of the adjustable state of the stopper processing in the third embodiment of the present invention.
  • Figure 16 is a schematic view of a hoop portion of an inner support type clamp having an elastic compensating mechanism in a fourth embodiment of the present invention.
  • Figure 17 is a schematic view of a motor-driven inner bracket according to a fifth embodiment of the present invention.
  • Figure 18 is a bottom view of Figure 17;
  • Figure 21 is a schematic view of a self-locking inner stay type clamp according to a sixth embodiment of the present invention.
  • Figure 22 is a cross-sectional view taken along the broken line in Figure 21;
  • Figure 23 is an enlarged view of a partial area of Figure 22;
  • Figure 26 is a schematic view of an inner stay type clamp having a protective cover according to a seventh embodiment of the present invention.
  • Figure 27 is a schematic view showing a piping connection system in which an inner tube and a clamp are integrated according to an eighth embodiment of the present invention.
  • FIG. 3 is a schematic view showing the installation of the inner ferrule in the pipe connection system of the present invention.
  • the pipe connection system comprises an outer pipe 1, an inner pipe 2 and an inner support type clamp 3.
  • the outer pipe 1 may be made of a non-elastic material such as metal, hard plastic or the like, and the inner pipe 2 has elasticity. , for example, a hose.
  • At least a portion of the inner tube 2 is sleeved in the outer tube 1.
  • the inner ferrule 3 is located within the portion of the inner tube 2 that is sleeved in the outer tube 1.
  • Figures 4 and 5 show the operation of the pipe connection system of the present invention.
  • the diameter of the inner tube 2 is slightly smaller than the diameter of the outer tube 1, so that the inner tube 2 can be inserted into the outer tube 1.
  • the inner ferrule 3 is placed in the inner tube 2 and placed in a portion where the inner tube overlaps the outer tube.
  • the inner stay type clamp 3 is adjusted so that its circumference becomes long, and the hoop diameter becomes large. Since the inner tube has elasticity, the inner stay type clamp 3 will be from the inside of the inner tube 2 This portion of the inner tube 2 is flared outwardly so that the portion of the inner tube 2 is brought into close contact with the outer tube 1.
  • the inner ferrule includes a hoop 31, a joint portion 32, and an adjustment member 33.
  • the hoop 31 is a flat strip-shaped workpiece and is formed into an annular shape.
  • the ring includes a first end A and a second end B. The end of the first end A forms a joint portion 32, or the first end A is fixed.
  • the hoop 31 may be formed of a metal having sufficient strength and ductility such as steel or aluminum alloy, or may be formed of a polymer material such as plastic.
  • the joint portion 32 and the hoop 31 may be integrally formed, or may be fixed by welding or the like.
  • the joint portion 32 is tubular with both ends open, and the first end A of the hoop 31 is fixed to the side wall of one end of the tubular joint portion 32.
  • the second end B of the hoop 31 is bent into the inside from the other end of the tubular joint portion 32, and can also pass through from the other end to partially overlap the first end A of the hoop 31.
  • the second end B of the hoop only penetrates into the tubular joint portion 32 and is received in the tubular joint portion 32, and the portion of the joint portion 32 near the A end can be closed.
  • the joint portion 32 of the present invention has a passage through which the hoop 31 can be inserted.
  • the present invention does not limit the specific shape of the tubular joint portion 32, and the tubular shape may be either a round tube or a square tube.
  • the joint portion 32 is a square tube having a rectangular cross section.
  • an adjustment member 33 is provided in the joint portion 32 for adjusting the length at which the second end B penetrates the joint portion 32, thereby changing the circumference of the clamp.
  • the structure and working principle of the adjusting member 33 will be specifically described below.
  • 6 to 10 show the structure of the inner stay type clamp and its adjusting member 33 according to an embodiment of the present invention.
  • 6 to FIG. 8 are a structure in which an adjusting member is mounted on an inner bracket type clamp, FIG. 6 is a front view, FIG. 7 is a cross-sectional view along a broken line in FIG. 6, and FIG. 8 is a top view of the structure shown in FIG. Fig. 9 is a front view showing the entire structure of the adjusting member of the embodiment, and Fig. 10 is a right side view of Fig. 9.
  • the adjusting member 33 is a cylindrical workpiece, and its both ends are rotatably hinged to one side wall of the tubular joint portion 32 so as to be entirely perpendicular to the annular plane surrounded by the hoop 31. .
  • the second end B of the hoop 31 penetrates into the tubular joint portion 32 from the upper gap of the adjusting member 33.
  • the adjusting member 33 includes a cylindrical rotating shaft 331, and a plurality of toothed tabs 332 are provided along the outer circumference thereof in the middle portion of the rotating shaft 331.
  • the number of the tabs 332 is six, but the present invention is not limited thereto, and the number thereof may be any number of four or more.
  • the portions of the adjusting member 33 may be integrally formed or may be formed by a plurality of partial segments.
  • a groove 333 may be provided on one end surface of the rotating shaft 331 so that the external tool rotates the rotating shaft by the rotation of the fitting groove 333 to operate the adjusting member 33.
  • the shape of the groove 333 is not limited to the one-line shape shown in FIG. 10, and may be a cross shape, a hexagon shape, or the like.
  • a plurality of adjusting holes 315 are provided on one side of the second end B of the hoop 31, and the shape, the spacing thereof and the plurality of toothed tabs 332 of the adjusting member 33 are provided.
  • the shape and the spacing are matched. Therefore, when the adjusting member 33 is rotated, the toothed tab 332 is just snapped into the adjusting hole 315, and the second end B of the hoop 31 is moved forward and backward along the circumference thereof, thereby adjusting The circumference of the clamp realizes the tightness adjustment of the inner clamp of the pipe.
  • FIG. 11 is a schematic view of an inner stay type clamp having a lock member according to a second embodiment of the present invention
  • Figure 12 is a schematic view showing the structure of the lock member of the embodiment.
  • a locking member is used to lock the second end B of the hoop relative to the joint portion 32.
  • the lock member 4 includes a body having a sheet-like structure in which both ends are bent by about 90 degrees, that is, a bent portion 43 including both sides and a flat portion 41 at the center.
  • the two bent portions 43 pass through the joint portion 32 and respectively penetrate into the adjusting holes 315 provided on the second end B side of the hoop, thereby reaching the second end B of the locking hoop and The effect of the relative position of the joint portion 32.
  • a projection portion 42 is also provided on the inner side of the bent portion 43.
  • the gap between the projection portion 42 and the flat portion 41 just accommodates the lower side wall of the tubular joint portion, so that the lock member 4 does not fall off.
  • FIG. 13 and 14 are schematic views of an inner stay type clip having another lock member according to a third embodiment of the present invention, which respectively show an operation state when the adjuster is rotated at different positions.
  • FIG. 13 and FIG. 14 are perspective views.
  • the lock member of this embodiment includes a lock pin 341, a stopper 342, and a tension spring 343.
  • the locking pin 341 is located on the right side of the adjusting member 33, and one end thereof is hinged to the inner side wall of the joint portion 32 through the pin 3411, and the other end extends to the edge of the rotating shaft 331 of the adjusting member 33, so that the end is fixed to the rotating shaft 331 The trajectory of the toothed plunging block 332 interferes.
  • the stopper 342 is disposed on one side of the lock pin 341 to block the lock pin 341 from rotating clockwise.
  • both the locking pin 341 and the stopper 342 are disposed on the inner side wall of the joint portion, and may be disposed on the front side wall or the rear side wall, or at the same time on the front and rear side walls (front , the latter refers to the direction of the vertical paper).
  • the stop shown in the figures is a rectangular block, but it can also be of any shape, such as a cylindrical shape.
  • a first connecting pin 3412 is disposed in a middle portion of the locking pin 341, and a second connecting pin 344 is disposed above the first connecting pin 3412 of the inner side wall of the joint portion 32, and two of the tension springs 344 The ends are fixed to the first connecting pin 3412 and the second connecting pin 344, respectively.
  • the second end B of the driving hoop is moved to the right side to increase the circumference of the hoop, thereby expanding the inner tube to bring the inner tube into close contact with the outer tube.
  • the toothed pull block 332 drives the lock pin 341 to rotate counterclockwise by a certain distance against the tensile force of the tension spring.
  • lock pin 341 in this embodiment is in the shape of a rod, it may be any other suitable shape.
  • the tension spring 344 can also be replaced by other elements capable of providing a restoring force to the pin stop pin 51, such as a torsion spring disposed at the pin 3411 of the lock pin 341, and the like. Transformations can be made by those skilled in the art in accordance with the principles provided herein.
  • the position of the stop is adjustable and movable, for example in the direction of the vertical side wall, such that it switches between a blocked state and a non-blocked state.
  • the stopper 342 is slidable in a direction parallel to the side wall along the sliding groove 345 on one side wall. That is, in the blocking state, it can block the lock pin from rotating in one direction as shown in Figs. 13 and 14, and it does not affect the rotation of the lock pin 51 in the non-blocking state.
  • the user can switch the lock mode and the non-lock mode of the inner clamp by adjusting the state of the stopper 342.
  • one end of the stop 342 can extend through the sidewall to the exterior of the sidewall. The snap fit required to slide the stop 342 in the chute 345 is well known in the art and will not be described in detail herein.
  • Figure 16 is a schematic illustration of a partial hoop of an inner ferrule in accordance with a fourth embodiment of the present invention.
  • the hoop portion of the inner ferrule further includes an elastic compensating mechanism.
  • the inner tube of the present invention has elasticity. However, for many elastic materials, such as rubber, it gradually ages with the increase of the use time, so that the elasticity becomes gradually weak, and the inner tube becomes slack, and the inner support clamp cannot be given inside.
  • the wall has sufficient supporting force to keep the inner tube and the outer tube in close contact.
  • the present invention preferably provides an elastic compensation structure on the inner support clamp so that the inner support clamp can continuously impart sufficient support force to the inner tube when the inner tube is weakened or aged.
  • the elastic compensating mechanism in this embodiment is a prefabricated corrugated structure 312, which is disposed at any position of the hoop as long as it does not affect the normal elastic adjustment of the clamp.
  • the pre-formed corrugated structure is subjected to a compressive force at both ends to shorten its total length, i.e., a pre-compression force is obtained inside the clamp.
  • the pre-compression force is released to lengthen the overall length of the pre-formed corrugated structure 312 (as indicated by the arrow in the figure).
  • other elastic compensation mechanisms can be used with the present invention, such as by springs.
  • FIG 17 is a schematic illustration of a motor-driven inner ferrule in accordance with a fifth embodiment of the present invention.
  • the adjusting member does not have an end portion with a recess 333 for user operation through the side wall of the joint portion.
  • a driven gear 335 is coaxially fixed to the rotating shaft of the adjusting member inside the joint portion.
  • a speed control gear set 336 and a drive motor 337 are rotatably disposed on the side wall of the joint head.
  • the drive motor 337 includes a drive gear 3371 that is fixed to its drive shaft.
  • the speed gear set 336 includes a first gear 3361 and a second gear 3362.
  • the first gear 3361 and the second gear 3362 are coaxially fixed.
  • the first gear 3361 meshes with the drive gear 3371
  • the driven gear 335 meshes with the second gear 3362. Since the number of teeth of the first gear 3361 is larger than the driving gear 3371, the number of teeth of the driven gear 335 is larger than that of the second gear 3362 because the rotational speed of the motor drive shaft is much larger than the rotational speed of the rotating shaft 331 of the adjusting member.
  • the control drive motor 337 is rotated, the shaft 331 of the adjustment member is rotated to adjust the circumference of the clamp.
  • Figure 18 is a bottom view of Figure 17.
  • the positional relationship of the drive motor 337, the timing gear set 336, and the adjusting member shaft 331 in this embodiment can be seen from the figure.
  • the positions of the respective gears in the drive motor 337, the timing gear set 336, and the adjusting member shaft 331 can be changed.
  • the drive motor 337 includes a drive gear 3371 and a motor 3372, and a battery mount may be disposed outside the side wall of the joint portion of this embodiment for accommodating the battery 338.
  • the battery 338 may be a battery of various types such as a dry battery or a button battery, or may be a rechargeable battery such as a solar battery.
  • the battery mount can be a separate housing or a chamber of the joint, the position of which can be set as desired. The invention is not limited to the form shown in FIG.
  • a control circuit (not shown) may be provided at any position in the joint portion or the battery mount.
  • the control circuit can be formed by a conventional PCB circuit board or by an integrated circuit, and the control mode can be a conventional manual switch or a remote control switch. By setting the remote control switch, the user does not need to manually operate, and only the remote control operation can achieve the fixing of the clamp.
  • a locking member may also be included in this embodiment.
  • the lock member may employ any one of the second, third, and fourth embodiments. In addition to this, it is preferable to use the lock members shown in Figs. 17 and 19.
  • the locking member includes a locking catch 351 that can be inserted into the teeth of the first gear 3361 by sliding.
  • the locking member also includes a permanent magnet 352 and an electromagnet 353.
  • the electromagnet 353 is fixed on the side wall of the joint portion, and can generate a magnetic field of opposite polarity under electric driving.
  • the permanent magnet 354 can slide along the shaft under the driving of the magnetic field, thereby locking the lock ⁇ 351 fixed on the permanent magnet. It is possible to switch between the teeth that are inserted and slid out of the first gear 3361. Thereby, the polarity of the permanent magnet can be controlled by the forward and reverse flow of the current, thereby achieving an automatic operation between the locked and unlocked states.
  • the circuit for controlling the polarity of the electromagnet 353 can be integrally designed with the circuit for driving the motor 337, that is, it can be manual or remote.
  • FIG. 19 and FIG. 20 show a particular locking member, those skilled in the art can change the locking gear 351 to lock the gear and operate the locking cymbal as needed, which should be regarded as Within the scope of protection of the present invention.
  • FIG. 21 is a schematic illustration of a self-locking inner retaining clip in accordance with a sixth embodiment of the present invention.
  • the clamp of this embodiment does not require the provision of separate adjustment members and lock members, but the hoop and joint portions are designed to achieve adjustment and locking.
  • the position of the hoop 31 near the second end B is provided with a first blocking block 313 protruding toward the center of the hoop, and at the same time, the outer side wall of the joint portion faces the hoop.
  • a second blocking block 321 protruding in the center.
  • the user can grasp the first blocking block 313 and the second blocking block 321 by a tool (for example, a pliers) and force the two stoppers to approach each other to achieve the purpose of adjusting the circumference of the hoop.
  • a tool for example, a pliers
  • Figure 22 is a cross-sectional view taken along the broken line in Figure 21 .
  • the lower side wall of the joint portion 32 has a through opening so that the first blocking block 313 protrudes beyond the side wall through the opening.
  • the second blocking block is disposed below the lower side walls on both sides of the opening.
  • Fig. 23 is an enlarged view of a partial area of Fig. 22; As can be seen from Fig. 23, a reed 322 is provided on the inner side of the left and right side walls of the joint portion 32, and the reed 322 projects toward the inner side of the joint portion. The reed divides the internal space of the joint portion into upper and lower portions.
  • the reed 322 is flexible and can be bent upward when an upward force is applied, and returns to its original state when the applied force is removed, that is, protrudes toward the inside of the joint portion.
  • the second end B of the hoop when the second end B of the hoop is inserted into the joint portion, it can be inserted from the lower half of the joint portion separated by the reed 322, as shown in the left diagram of FIG. 22, when the second When the end B exerts an upward force, as shown by the direction of the arrow in FIG. 23, the second end B can be pressed into the upper half space of the joint portion 32, and under the blocking of the reed, the second The end B can be at least closely attached to the inner wall of the upper side wall of the joint portion 32 as shown in the right drawing of FIG.
  • Figures 24 and 25 show cross-sectional views along the broken line of Figure 22, showing the detailed structure of the joint portion and the hoop.
  • the upper surface of the second end B of the hoop 31 is provided with a plurality of barbs 314, which cooperate with the barbs 314, on the inner side of the upper side wall of the joint portion and the second side of the hoop
  • the inner side of the one end A is provided with an inverted groove 323, and the barb 314 and the inverted groove 323 can be engaged with each other, so that when the barb 314 and the inverted groove 323 are closely adhered to each other, the second end B can only be opposite to the joint portion 32.
  • the second end B when the second end B is inserted into the joint portion, the second end B needs to be inserted into the lower half of the joint portion as shown in FIG. 24; when the predetermined position is reached (usually the diameter of the clamp is small enough) Can be placed in the inner tube 2), the user applies pressure to the second end B toward the upper side wall of the joint portion, so that the second end B passes over the reed 322 into the upper half space, due to the action of the reed 322
  • the second end B closely fits to the inner wall of the upper side wall of the joint portion 32 and the inner side of the first portion A.
  • first blocking block 313 and the second blocking block 321 are clamped by using an external tool, so that the second end B moves in the direction of pulling out the joint portion 32, and the circumference of the hoop is increased to achieve the effect of tightly supporting the inner tube. .
  • the reed 322 may be formed of an elastic metal member, or may be integrally formed by injection molding, so that the second end B can press the upper half space from the lower half space while effectively blocking the second end B. It is better to return the lower half of the space from the upper half of the space.
  • the one-way motion locking structure of the barb and the inverted groove can also be replaced by other similar structures, such as a sawtooth structure or the like. The size, position and number of the first blocking block and the second blocking block can be flexibly set as needed to facilitate the clamping.
  • Figure 26 is a schematic view of an inner stay type clamp having a protective cover in accordance with a seventh embodiment of the present invention.
  • the outer circumference of the inner clamp is further provided with a protective sleeve 7, which can be made of a material having elasticity and flexibility, which can reduce the clamp to the inner tube. Wear of the inner wall surface.
  • Figure 27 is a schematic view showing a piping connection system in which an inner tube and a clamp are integrated according to an eighth embodiment of the present invention.
  • the portion of the inner tube 2 near the end is provided with a ring of outwardly projecting loops 21 having an inner diameter larger than the other portions of the inner tube 2, whereby the inner band clamp 3 It can be embedded in the ring, whereby the inner tube and the inner support clamp are integrated, thereby solving the inconvenience of separately arranging the clamp for the pipe.

Abstract

L'invention concerne un feuillard de cale par étayage interne, un conduit correspondant, un système de raccordement de conduit et un procédé de raccordement de conduit. Le feuillard de cale (3) comprend un anneau de feuillard (31), une partie raccord (32) et une partie de réglage (33). L'anneau de feuillard (31) se ferme pour former un anneau, l'anneau a une première extrémité (A) et une seconde extrémité (B), et la première extrémité (A) est reliée à demeure à la partie raccord (32) ; la seconde extrémité (B) pénètre dans la partie raccord (32) ; la partie raccord (32) est pourvue d'un canal permettant la pénétration de l'anneau de feuillard (31) ; et au moins une partie de la partie de réglage (33) est disposée sur la partie raccord (32) pour régler la longueur de pénétration de la seconde extrémité (B) dans la partie raccord (32). Le feuillard de serrage (3) peut en outre comprendre une partie de verrouillage (4). Un tuyau interne élastique (2) peut être raccordé dans un tuyau externe (1) à la manière d'un étayage interne, et les avantages d'une utilisation pratique et d'une bonne universalité sont obtenus.
PCT/CN2018/078061 2018-03-05 2018-03-05 Feuillard de cale par étayage interne, conduit correspondant, système de raccordement de conduit et procédé de raccordement de conduit WO2019169537A1 (fr)

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PCT/CN2018/078061 WO2019169537A1 (fr) 2018-03-05 2018-03-05 Feuillard de cale par étayage interne, conduit correspondant, système de raccordement de conduit et procédé de raccordement de conduit

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PCT/CN2018/078061 WO2019169537A1 (fr) 2018-03-05 2018-03-05 Feuillard de cale par étayage interne, conduit correspondant, système de raccordement de conduit et procédé de raccordement de conduit

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4746127A (en) * 1987-06-30 1988-05-24 A-Lok Products, Inc. Adjustable clamping band for gaskets and method for using same
US5549334A (en) * 1994-10-20 1996-08-27 Miller Pipeline Corporation Retaining band assembly for internal pipe seals
US5738359A (en) * 1996-02-23 1998-04-14 Npc Acquisition Corp. Expandable band and locking mechanism for installing a flexible sealing element
DE19910522C1 (de) * 1999-03-10 2000-12-14 Hans Guenter Lewin Rohrinnenmuffe mit Manschette und Packer sowie Verfahren zur Innenabdichtung von Rohrleitungen
US20050206164A1 (en) * 2002-07-31 2005-09-22 Npc, Inc. Expandable band and locking mechanism
CN101960154A (zh) * 2008-02-26 2011-01-26 盖茨公司 一种软管的抗塌陷肋条、系统和方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4746127A (en) * 1987-06-30 1988-05-24 A-Lok Products, Inc. Adjustable clamping band for gaskets and method for using same
US5549334A (en) * 1994-10-20 1996-08-27 Miller Pipeline Corporation Retaining band assembly for internal pipe seals
US5738359A (en) * 1996-02-23 1998-04-14 Npc Acquisition Corp. Expandable band and locking mechanism for installing a flexible sealing element
DE19910522C1 (de) * 1999-03-10 2000-12-14 Hans Guenter Lewin Rohrinnenmuffe mit Manschette und Packer sowie Verfahren zur Innenabdichtung von Rohrleitungen
US20050206164A1 (en) * 2002-07-31 2005-09-22 Npc, Inc. Expandable band and locking mechanism
CN101960154A (zh) * 2008-02-26 2011-01-26 盖茨公司 一种软管的抗塌陷肋条、系统和方法

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