WO2016080581A1 - Appareil de raccordement à demeure de tuyaux de type à insert - Google Patents

Appareil de raccordement à demeure de tuyaux de type à insert Download PDF

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Publication number
WO2016080581A1
WO2016080581A1 PCT/KR2014/012462 KR2014012462W WO2016080581A1 WO 2016080581 A1 WO2016080581 A1 WO 2016080581A1 KR 2014012462 W KR2014012462 W KR 2014012462W WO 2016080581 A1 WO2016080581 A1 WO 2016080581A1
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WO
WIPO (PCT)
Prior art keywords
pipe
jaw
ring
pipe connecting
taper
Prior art date
Application number
PCT/KR2014/012462
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English (en)
Korean (ko)
Inventor
이주헌
안재민
방지영
Original Assignee
이주헌
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Application filed by 이주헌 filed Critical 이주헌
Publication of WO2016080581A1 publication Critical patent/WO2016080581A1/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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
    • 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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
    • F16L37/0925—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector with rings which bite into the wall of the pipe
    • 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
    • F16L21/00—Joints with sleeve or socket
    • F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
    • 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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
    • F16L37/0927—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector the wedge element being axially displaceable for releasing the coupling

Definitions

  • the present invention relates to a stationary pipe connection device, and more particularly, to a stationary pipe connection device that can be fixed by simply inserting the pipe for pipe, and can be easily removed again if necessary.
  • the pipe connecting device is mainly used as a means for maintaining the airtightness of the pipe by connecting and fixing the pipe and the pipe on the fluid flow path, and has a variety of forms, such as straight, elbow, T-shaped, cross-shaped, depending on the type of connection. .
  • the thickness is only 0.8 ⁇ 1.0mm, which makes it difficult to weld as well as screw in the construction site, and requires additional process such as the use of a dedicated press or expansion pipe.
  • a dedicated presser causes the weakness of the axial support force, and there are problems such as relaxation and leakage due to the deterioration of the compressibility due to the wear of the presser.
  • problems such as durability reduction due to expansion of the pipe, skilled plumbers required, labor costs increase, etc. also occurred.
  • an insert-type pipe connection device has been developed that can be fixed simply by inserting a pipe into the connection device and can be easily detached if necessary.
  • the main technical configuration of the insert-type fixed pipe connecting device developed by the present applicant is disclosed in detail in Korean Patent Laid-Open Publication No. 2009-0039630 (name of the invention: the connecting device of the pipe, the connecting method and the jaw manufacturing method of the jaw holder).
  • the present insertion stationary pipe connecting device which is an improvement of the connecting device disclosed herein, is slightly different in configuration of the jaw holder portion.
  • the present insertion stationary pipe connecting device will be described with reference to FIGS. 1 to 4.
  • the stationary pipe connection device 100 has a pipe connection body 110 into which the corresponding ends of two pipes 1 and 2 are inserted, and the coupling between the pipe connection body 110 and the pipes 1 and 2.
  • a plurality of jaws 180 includes a jaw holder 170 and a snap ring 190 rotatably mounted.
  • the pipe connecting body 110 is divided into three parts, a central portion (I), a transition portion (II), and a front end portion (III), going from the center portion of the pipe connecting body 110 to both ends. . Since the pipe connection body 110 of the present embodiment is the same on both sides will be described based only on the configuration of the right portion.
  • the central portion (I) of the pipe connecting body (110) has a diameter almost the same as the diameter of the pipe (1,2) to be inserted, the pipe (1,2) is no longer inserted in the middle of the inner peripheral surface of the central portion (I) Pipe catching jaw 112 that prevents is formed.
  • the transition part II of the pipe connection body 110 has a diameter larger than that of the central part I, and includes the first O-ring 120, the backup ring 130, the second O-ring 140, and the spring guide ( 150 and the compression spring 160 are inserted in turn.
  • Jaw holder 170 is installed to the front end portion (III) of the pipe connection body 110 to be rotatable so as to be movable in the left and right directions.
  • the snap ring 190 is inserted into and fixed to the insertion groove 113 formed on the inner circumferential surface of the pipe connecting body 110, and is coupled to the snap ring catching jaw 174 of the jaw holder 170 to be described above. 190) does not escape to the outside.
  • the jaw holder 170 is moved to the left by pushing the flange portion 173 of the jaw holder 170 (FIG. 4A).
  • the jaw 180 installed in the jaw holder 170 rotates slightly in a counterclockwise direction, and moves to the left along the inclined surface 111 of the pipe connecting body 110, and simultaneously supports the jaw holder 170.
  • the compression spring 160 that was present is compressed.
  • the pipe 1 can be pulled out to be easily detached from the pipe connecting body 110 (FIG. 4 ( b)).
  • the force holding the jaw holder 170 is removed, and the jaw holder 170 returns to its original position by the restoring force of the compression spring 160 (Fig. 4 (c)). .
  • Applicant's insert-fixed pipe connection device 100 having the configuration described above can be simply fixed by inserting the pipe without additional processes such as welding, pressing, screwing, and further press the jaw holder 170
  • the technical advantage of being able to simply separate it has attracted much attention in the art.
  • this insert-type fixed pipe connecting device has a problem in that the production cost is high because the pipe connecting body 110 is manufactured through a casting process and a CNC machining process, and other improvements in structural parts have also been found.
  • the entire center portion I of the pipe connecting body 110 may be as much as the pipe catching jaw 112.
  • Pipe jammed 112 was made by thickening and then removing the remainder through CNC cutting. This has resulted in a waste of expensive stainless metal materials as well as an increase in the cost of CNC machining. It is generally known that the amount of metal material discarded through CNC cutting accounts for about 30% of the total metal material weight.
  • the inclined surface 111 has been formed directly on the inner circumferential surface of the pipe connecting body 110 through CNC cutting.
  • This is a waste of the above-described metal material, as well as an increase in the cost of CNC machining, there is a problem that may cause the destruction when a strong external stress is applied by reducing the thickness of the pipe connection body (110).
  • high seismic design is required, and for this, it is necessary to solve the problem of thickness reduction due to the formation of the inclined surface 111.
  • the insertable pipe connecting device 200 is divided into three parts, the central part (I), the transition part (II) and the front end part (III), going from the center part of the pipe connection body 210 to both ends. It is the same as the insertion stationary pipe connection device 100 described with reference.
  • this insert pipe connecting device 200 does not have a pipe hooking jaw configuration for limiting the insertion length of the pipe in the center portion (I), as shown in part "A" of FIG.
  • the stepped portion 211 formed at the portion extending into II) is configured to function as a pipe engaging step.
  • the interior of the central part I and the transition part II is empty, and is distinguished from the pipe connecting device of FIG. 2 in that all the parts used to fix the pipe in the tip part III are inserted.
  • the O-ring guide 220, the first O-ring 230, the spring guide 240, the compression spring 250, and the inclined surface 265 are formed at the distal end III of the insert pipe connecting device 200.
  • the formed casing part 260 and the jaw 275 are inserted into the jaw holder 270, the second O-ring 280, and the O-ring guide 290 which are installed to be movable along the inclined surface 265.
  • Both ends 215 of the pipe connection body 210 are bent to prevent the above-described parts 220 to 290 from escaping to the outside.
  • the inclined surface guiding the movement of the jaw 260 is not formed on the inner circumferential surface of the pipe connecting body 210, but the inclined surface 265 is formed inside the casing part 260. Is distinguished from the pipe connection of FIG.
  • the plug-in pipe connecting device 200 is made of a rubber material in which the casing part 260 is elastic because all of the above-described parts 220 to 290 are installed at the front end part III of the pipe connecting body 210.
  • O-rings 230 and 280 are installed in close contact with each other in the same space.
  • the position of the casing part 260 more precisely, the inclined surface 265 of the casing part 260 is not fixed and moves slightly from side to side according to the elastic deformation of the O-rings 230 and 280, and consequently the jaw holder 270.
  • the jaw holder 240 has a structural limitation that cannot be provided to move the jaw holder 240 to separate the pipe from the insert pipe connecting device 200.
  • the insert pipe connecting device 200 is inserted by bending both ends 215 of the pipe connecting body 210 after inserting all the above-described parts 220 to 290 without using a separate snap ring. This prevents components 220-290 from escaping outside.
  • the entire connection device must be disposed of because the end of the pipe connecting body 210 cannot be unfolded even when the parts are assembled incorrectly.
  • the present invention solves the structural problems of the conventional inserting fixed pipe connecting device and at the same time provide a fixed inserting pipe connecting device capable of both connecting and disconnecting pipes that can significantly reduce the production cost. There is this.
  • Insertion-type fixed pipe connecting device for achieving the above object, the pipe is connected to the pipe main body is inserted into the central portion, the primary expansion portion and the secondary expansion portion gradually increases in diameter from the end to the end
  • the central portion is provided with a pipe stopper for limiting the insertion length of the pipe is inserted
  • the primary expansion pipe is installed with an O-ring and a compression spring for increasing water tightness
  • the secondary expansion pipe is inclined surface on the inner peripheral surface
  • the formed ring-shaped jaw taper is fitted and inserted into the jaw holder, which is provided to move the inside of the jaw taper while being elastically supported by the compression spring, and moves along the inclined surface of the jaw taper to the lower portion.
  • a plurality of jaws that are toothed to engage a pipe may be mounted on the jaw holder.
  • the pipe stopper is configured in a ring shape, the inner peripheral surface of the one end is formed with an inner locking jaw to take the leading end of the pipe, the outer peripheral surface of the other end of the outer locking so as to engage the connection portion of the primary expansion pipe A jaw can be formed.
  • the O-ring is composed of a first O-ring and a second O-ring installed on both sides of the backup ring to increase the watertightness, the first O-ring is installed in close contact with the pipe stopper, the second O-ring is in close contact with the backup ring Can be installed.
  • the compression spring may be supported on the spring guide is installed in close contact with the O-ring.
  • the pipe connecting body may be configured such that the end of the secondary expansion pipe is bent to fix the jaw taper inside the secondary expansion pipe.
  • the jaw holder may be provided with a mounting hole to allow the teeth of the jaw to protrude into the inner circumferential surface of the body portion on the ring-shaped body portion.
  • the jaw holder may be formed with a support jaw to be supported by the compression spring on the outer peripheral surface of the ring-shaped body portion.
  • the jaw holder has a separation prevention jaw is formed on the outer peripheral surface of the ring-shaped body portion, a snap ring is inserted into the engaging groove formed on the inner peripheral surface of the jaw taper is installed, the separation jaw of the jaw holder is configured to be caught by the snap ring Can be.
  • the jaw may be formed on the inclined surface corresponding to the inclined surface of the jaw taper.
  • the inclined surface is directly formed on the inner circumferential surface thereof, so that the thickness of the portion is relatively thin, thereby preventing the risk of being a starting point of breakage when a strong external force is applied, such as an earthquake.
  • the jaw taper provided with the inclined surface necessary for the movement of the jaw is completely fixed to the secondary expansion pipe of the pipe connection body so that the jaw taper is not moved so that the movement of the jaw can be precisely controlled. It also allows you to perform functions.
  • FIG. 1 is an exploded perspective view showing the structure of a conventional insert-type fixed pipe connection device.
  • Figure 2 is a cross-sectional view showing the structure of the insertion fixed pipe connecting device of FIG.
  • Figure 3 is a view showing a pipe insertion process of the insertion stationary pipe connection of FIG.
  • FIG. 4 is a view illustrating a pipe separating process of the insertable pipe connecting device of FIG. 1.
  • Figure 5 is a view showing the structure of another conventional fixed pipe connection device is not removable.
  • Figure 6 is an exploded perspective view showing the structure of the insertion fixed pipe connecting device according to the present invention.
  • Figure 7 is a cross-sectional view showing the structure of the insertion fixed pipe connection device according to the present invention.
  • FIG. 8 shows a detailed configuration of a pipe stopper according to the present invention.
  • FIG. 9 shows a detailed configuration of a jaw taper according to the present invention.
  • Fig. 10 is a sectional view of the connector body in the state where a jaw taper is inserted.
  • Figure 11 is a view showing a pipe insertion process of the insertion stationary pipe connection apparatus according to the present invention.
  • FIG. 12 is a view showing a pipe separation process of the fixed pipe connection apparatus according to the present invention.
  • FIG. 6 is an exploded perspective view showing the structure of the insert-type pipe connecting apparatus according to the present invention
  • Figure 7 is a cross-sectional view thereof.
  • the stationary pipe connection device 300 has a pipe connection body 301 into which the corresponding ends of two pipes 1 and 2 are inserted, and the coupling between the pipe connection body 301 and the pipes 1 and 2.
  • the pipe stopper 310, the first O-ring 320, the backup ring 330, the second O-ring 340, the spring guide 350 which are inserted into the pipe connection body 301 in order to ensure watertightness, and the like.
  • the pipe connecting body 301 is shown in a straight form, but the present invention is not limited to this, it may be configured in various forms, such as elbow, T-shaped, cross-shaped.
  • the pipe connecting body 301 is a central portion (I), a primary expanding portion (II), and a secondary portion having a diameter gradually increasing from both ends of the pipe connecting body 301 to both ends thereof. It is divided into three parts.
  • the construction of the metal steel pipe into the pipe connecting body 301 through two expansion processes is one of the characteristic technical configurations of the present invention, which is distinguished from the conventional one shown in FIG.
  • the conventional pipe connecting body 110 shown in FIG. 2 is manufactured through a casting process and a CNC machining process, which causes about 30% of metal materials to be wasted and a large manufacturing cost due to the addition of CNC cutting. This has already been described above.
  • the pipe connecting body 301 is not a conventional casting process or a CNC machining process, but a metal expansion pipe having a certain thickness, and among them, using only two expansion processes without a separate cutting process using a stainless steel pipe having high corrosion resistance. Since the pipe connection body 301 can be manufactured, the production cost is greatly reduced.
  • the present invention adopts the following new configuration to solve various mechanical and structural issues to be considered as the metal steel pipe is manufactured by expanding the casting process without using the casting process.
  • a pipe stopper 310 was newly added. Comparing FIG. 2 and FIG. 7, the pipe engaging jaw 112 is not formed in the center portion I of the pipe connecting body 301 according to the present invention. Conventionally, in order to form the pipe hooking jaw 112, the center part was thickly cast and then the remaining part was cut through CNC machining, which was a major cause of increasing metal material waste and manufacturing cost. On the contrary, the inventors of the present invention constrain the pipe stopper 310 by inserting the pipe stopper 310 in order to limit the insertion length of the pipe instead of using the metal I pipe in its original form. The jaw 112 is to replace the role. A main configuration of the pipe stopper 310 will be described later with reference to FIG. 8.
  • a new jaw taper 370 was added. Comparing FIGS. 2 and 7, the inclined surface 111 is directly formed at the front end portion III of the conventional pipe connecting body 110. As a result, the pipe connecting body 110 is reduced in thickness to decrease mechanical rigidity. Caused it. According to the present invention, a metal steel pipe having a certain thickness is used. In the case of a commonly used stainless steel pipe, since the thickness is only 0.8 to 1 mm, the steel pipe cannot be cut to form an inclined surface. Thus, the present inventors solved this problem by fitting the jaw taper 370 having the inclined surface 371 formed on the second expansion pipe III of the pipe connecting body 301.
  • the jaw taper 370 not only provides the inclined surface 371, but also increases the thickness of the second expanding portion III of the pipe connection body 301 due to the thickness of the jaw taper 370 itself. It improves the mechanical rigidity of the pipe connecting body (110).
  • a main configuration of the jaw taper 370 will be described later with reference to FIG. 9.
  • the jaw taper 370 is configured to be completely fixed in the second expansion pipe III of the pipe connecting body 301 so as not to move.
  • the jaw holder 240 having the inclined surface 243 is formed to flow left and right by the O-rings 230 and 270 closely installed to both sides, thereby separating the pipe. Fixed the problem that cannot be added.
  • the jaw holder 380 is not caught by the end 302 of the pipe connecting body 301 that is bent, but is caught by the snap ring 375 inserted into the jaw taper 370 so that the pipe connecting body ( It was configured not to escape to the outside of the 301.
  • the snap ring 375 may be removed to easily remove and reassemble the parts inserted into the pipe connection body 301.
  • This is the end 215 of the pipe connecting body 210 in the case of preventing the components installed therein by the end 215 of the pipe connecting body 210 in the conventional insertion pipe connecting device shown in FIG. Since it can not be unfolded, when the assembly failure, etc. occurred, the problem that the entire pipe connection body 210 should be disposed of and disposed of.
  • the central portion I of the pipe connecting body 301 is formed to be slightly larger than the diameter of the pipes 1 and 2 to be inserted, and the pipe stopper 310 is inserted and fixed.
  • the pipe stopper 310 has a ring shape as shown in FIG. 8, and an inner locking jaw 311 is formed on an inner circumferential surface of one side of the pipe so that the front end of the pipe is caught, and the primary end of the pipe stopper 310 is formed on the outer circumferential surface of the other side of the pipe stopper 310.
  • the outer locking jaw 312 is formed to engage with the connection portion of the expansion pipe (II).
  • the outer locking jaw 312 When the pipe stopper 310 is inserted into the pipe connecting body 301, the outer locking jaw 312 is caught in the step between the central portion (I) and the first expansion pipe (II) of the pipe connecting body (301). Is fixed in the desired position. As shown in part “A” of FIG. 7, the inner locking jaw 311 formed in the pipe stopper 310 is coupled to the front end of the pipe when the pipe is inserted to limit the insertion length of the pipe.
  • the first expansion pipe (II) of the pipe connection body 301 is enlarged in diameter compared to the central portion (I) through the expansion process, the first O-ring 320, the backup ring 330, the second O-ring ( 340, the spring guide 350 and the compression spring 360 are inserted and installed in this order. Only one O-ring may be installed, but in order to increase watertightness, two first O-rings 320 and second O-rings 340 may be installed on both sides of the backup ring 330.
  • the first O-ring 320 is installed in close contact with the pipe stopper 310, and the second O-ring 340 is installed in close contact with the backup ring 330 to improve watertightness.
  • the term "adherence" should not be construed as a narrow meaning of sticking together, but in a broad sense of being installed in close proximity to each other to increase the airtightness of the space.
  • the spring guide 350 is installed in close contact with the second O-ring 340, and the compression spring 360 is supported on the spring guide 350.
  • the spring guide 350 is preferably provided with a mounting groove so that the compression spring 360 can be stably supported. 6 and the like, but a coil spring is shown as a representative example of the compression spring 360, but the present invention is not limited thereto, and any shape such as a leaf spring may be used to elastically support the jaw holder 380. Springs are also available.
  • the second expansion pipe (III) of the pipe connection body 301 is enlarged in diameter compared to the first expansion pipe (II) through the expansion process and the above-described jaw taper 370, a plurality of jaws 390 is installed
  • the jaw holder 380 and the snap ring 375 are inserted in turn.
  • the jaw taper 370 has a ring shape in which an inclined surface 371 is formed on an inner circumferential surface as shown in FIG. 9.
  • the inclined surface 371 is formed to be inclined upward toward the first expanding portion II of the pipe connecting body 301 so that the jaw 390 moves inside the pipe connecting body 301 along the inclined surface 371.
  • jaw 390 is configured to open.
  • the opening of the jaw 390 means that the diameter of the circle (circle on the same plane as the cross section of the pipe) connecting the plurality of jaws 390 installed at regular intervals along the circumference of the jaw holder 380 increases. do.
  • the end 302 of the secondary expansion pipe (III) of the pipe connection body 301 is bent and the jaw taper 370 coupled to the inside of the secondary expansion pipe (II) by a force fitting method is completely fixed.
  • This has the same effect as the inclined surface 111 is integrally formed on the front end portion (III) of the pipe connection main body 110 in the conventional insert-type fixed pipe connecting device 100 shown in FIG.
  • the jaw taper 370 is made of the same stainless steel pipe material as the pipe connecting body 301 to substantially fix the thickness of the secondary expansion portion (III) of the pipe connecting body 301. Also shown.
  • the jaw holder 380 is elastically supported by the compression spring 360 and is inserted to move the inside of the jaw taper 370 in a ring shape. To this end, the jaw holder 380 is formed with a support jaw 385 to be supported by the compression spring 360 on the outer peripheral surface of the ring-shaped body portion 381. As a result, the jaw holder 380 is moved in the elastically biased state by the compression spring 360.
  • the jaw holder 380 has a separation prevention jaw 384 formed on the outer circumferential surface of the ring-shaped body portion 381, and a snap ring 375 on the engaging groove 372 formed on the inner circumferential surface of the jaw taper 370.
  • the insert is installed, and the separation prevention jaw 384 of the jaw holder 380 is configured to be caught by the snap ring 375.
  • all of the parts 310 to 380 inserted into and installed in the pipe connecting body 301, including the jaw holder 380 are configured to not escape to the outside of the pipe connecting body 301.
  • the end stop 302 of the secondary expansion pipe III bent in this manner is configured to be caught by the snap ring 375 without being caught by the separation prevention jaw 384 of the jaw holder 380.
  • the snap ring 375 by simply removing the snap ring 375, all parts 310 to 380 can be easily separated from the pipe connection body 301.
  • a jaw 390 having a tooth 391 is formed to move along the inclined surface 371 of the jaw taper 370 and to be engaged with the pipe. More specifically, the jaw 390 is inserted into and mounted in a plurality of mounting holes 382 formed at regular intervals along the outer circumference of the jaw holder 380 as shown in FIG. 6. As shown in part “B” of FIG. 7, an inclined surface 392 corresponding to the inclined surface 371 of the jaw taper 370 may be formed at an upper portion of the jaw 390.
  • the jaw 390 is configured such that the inclined surface 392 can be smoothly moved on the inclined surface 371 formed on the inner circumferential surface of the jaw taper 370.
  • FIG. 10 shows a state in which a pipe expansion body is performed twice for the first pipe connection body 301 made of stainless steel pipe, and then the jaw taper 370 is fitted.
  • the pipe connecting body 301 is first manufactured in the form shown in FIG. 10 by a method such as oil forming, and then all parts from the pipe stopper 310 to the jaw holder 380 are 1 Final assembly is completed through an assembly process of inserting and installing the pipe connecting body 301 manufactured.
  • the pipe connection main body 301 of the pipe connection main body 301 is shown.
  • the center part I does not directly form a pipe locking step configuration, and therefore does not require a CNC cutting process.
  • the inclined surface 371 is provided to control the movement of the jaw 390 from the jaw taper 370 fixed to the second expansion part III of the pipe connecting body 301.
  • the present invention is to manufacture a pipe by expanding the metal pipe in place of the casting process, and to omit the CNC cutting process, it is possible to significantly reduce the manufacturing cost of the insert pipe connecting device.
  • FIG. 11 shows a process of connecting a pipe to an insertion stationary pipe connection.
  • the pipe 1 is moved to the left by pushing the jaw holder 380 in the state left (Fig. 12 (a)).
  • the jaw 390 installed in the jaw holder 380 moves to the left on the inclined surface 392 formed on the upper portion of the jaw taper 370 formed on the inner circumferential surface of the jaw taper 370 fitted to the pipe connecting body 301. do.
  • the jaw 390 is opened and at the same time, the compression spring 360 which has supported the jaw holder 380 is compressed (see FIG. 12B).
  • the jaw 390 is opened, the binding force on the pipe 1 is released, so that the pipe 1 can be easily pulled out from the pipe connecting body 301 by pulling the pipe 1 to the right.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

L'objectif principal de la présente invention est de produire un appareil de raccordement à demeure de tuyaux de type à insert grâce auquel des tuyaux peuvent à la fois être raccordés et séparés, et qui résout les problèmes structuraux de l'appareil de raccordement à demeure de tuyaux de type à insert classique, tout en permettant en même temps de réduire considérablement le coût de production unitaire L'appareil de raccordement à demeure de tuyaux de type à insert selon la présente invention, afin d'atteindre l'objectif, est pourvu d'un corps principal de raccordement de tuyaux, dans lequel des tuyaux sont insérés, comprenant une section centrale, des expansions primaires et des expansions secondaires, dont les diamètres augmentent progressivement depuis la section intermédiaire vers les extrémités, des butées de tuyaux destinées à limiter la distance d'insertion des tuyaux sont insérées dans la section centrale, des joints toriques permettant d'améliorer l'étanchéité à l'eau et des ressorts de compression sont insérés dans les expansions primaires, et dans les expansions secondaires sont montés des coinceurs de mâchoire annulaires ayant des surfaces circonférentielles intérieures inclinées, et des supports de mâchoire, placés mobiles dans l'intérieur des coinceurs de mâchoire tout en étant supportés élastiquement par les ressorts de compression, sont insérés, une pluralité de mâchoires, ayant des fonds en dents de scie de manière à venir en prise avec le tuyau tout en se déplaçant le long de la surface inclinée du coinceur de mâchoire, pouvant être fixées sur le support de mâchoire.
PCT/KR2014/012462 2014-11-17 2014-12-17 Appareil de raccordement à demeure de tuyaux de type à insert WO2016080581A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2014-0159760 2014-11-17
KR1020140159760A KR101543367B1 (ko) 2014-11-17 2014-11-17 삽입 고정식 파이프 연결장치

Publications (1)

Publication Number Publication Date
WO2016080581A1 true WO2016080581A1 (fr) 2016-05-26

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CN108302104A (zh) * 2018-02-09 2018-07-20 宁波积家创意家居设计有限公司 一种用于连接方管的膨胀扣

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KR101823055B1 (ko) * 2016-04-22 2018-01-30 주식회사 에버테크코퍼레이션 파이프 연결장치
US10400929B2 (en) * 2017-09-27 2019-09-03 Quick Fitting, Inc. Fitting device, arrangement and method
KR102389848B1 (ko) * 2019-10-28 2022-04-22 홍성돈 스테인리스 강관 연결구

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WO2003048625A1 (fr) * 2001-12-03 2003-06-12 Sukyoon Kim Raccord de plomberie
KR20090132072A (ko) * 2008-06-20 2009-12-30 김승현 원터치식 파이프 연결구
US20110049875A1 (en) * 2009-08-27 2011-03-03 Elkhart Products Corporation Press-connect fitting with improved grab ring function
KR101081549B1 (ko) * 2010-12-21 2011-11-08 화이버텍(주) Ｆｒｐ 파이프 연결관 조립체

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WO2003048625A1 (fr) * 2001-12-03 2003-06-12 Sukyoon Kim Raccord de plomberie
KR20090132072A (ko) * 2008-06-20 2009-12-30 김승현 원터치식 파이프 연결구
US20110049875A1 (en) * 2009-08-27 2011-03-03 Elkhart Products Corporation Press-connect fitting with improved grab ring function
KR101081549B1 (ko) * 2010-12-21 2011-11-08 화이버텍(주) Ｆｒｐ 파이프 연결관 조립체

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108302104A (zh) * 2018-02-09 2018-07-20 宁波积家创意家居设计有限公司 一种用于连接方管的膨胀扣
CN108302104B (zh) * 2018-02-09 2024-04-09 宁波积家创意家居设计有限公司 一种用于连接方管的膨胀扣

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