WO2016080581A1 - Fixedly insert-type pipe connecting apparatus - Google Patents

Fixedly insert-type pipe connecting apparatus 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
Other languages
French (fr)
Korean (ko)
Inventor
이주헌
안재민
방지영
Original Assignee
이주헌
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 이주헌 filed Critical 이주헌
Publication of WO2016080581A1 publication Critical patent/WO2016080581A1/en

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

Abstract

The main purpose of the present invention is to provide a fixedly insert-type pipe connecting apparatus with which pipes can be both connected and separated, and which resolves structural issues of the conventional fixedly insert-type pipe connecting apparatus, while, at the same time, allowing the unit cost of production to be significantly reduced. The fixedly insert-type pipe connecting apparatus according to the present invention in order to attain the goal is provided with a pipe connecting main body, into which pipes are inserted, comprising a central section, primary expansions, and secondary expansions, the diameters of which increase stepwise from the middle section to the ends, wherein pipe stoppers for limiting the insertion distance of the pipes are inserted into the central section, O-rings for improving water-tightness and compression springs are inserted into the primary expansions, and into the secondary expansions, ring-shaped jaw tapers having sloped inner circumferential surfaces are fitted, and jaw holders, movably provided in the interior of the jaw tapers while being elastically supported by the compression springs, are inserted, wherein a plurality of jaws, having sawtoothed bottoms so as to engage with the pipe while moving along the sloped surface of the jaw taper, can be attached on the jaw holder.

Description

[규칙 제26조에 의한 보정 28.01.2015]　삽입 고정식 파이프 연결장치[Correction 28.01.2015 by Rule 26] 고정 Insertion fixed pipe connection device
본 발명은 삽입 고정식 파이프 연결장치에 관한 것으로서, 보다 상세하게는 배관용 파이프를 단순히 삽입하는 것만으로 고정시킬 수 있고, 필요한 경우 손쉽게 다시 분리할 수 있도록 해주는 삽입 고정식 파이프 연결장치에 관한 것이다.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.
일반적으로 파이프 연결장치는 유체가 흐르는 관로 상에서 파이프와 파이프를 연결, 고정하여 파이프의 기밀성을 유지하는 수단으로 주로 사용되며, 그 연결 형태에 따라서 직선형, 엘보형, T자형, 십자형 등 다양한 형태를 가진다.In general, 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. .
이러한 파이프 연결장치는 파이프 상호 간의 기밀성과 결합성을 확보할 수 있어야 할 뿐만 아니라 일정한 진동과 충격에도 쉽게 파손되거나 이탈되지 않아야 한다. 이를 위해, 종래의 파이프 연결장치는 기밀성과 결합성을 높이기 위하여 파이프와 파이프의 접속부위를 용접하거나, 나사 결합 등의 별도의 고정수단 및 스냅 링을 필요로 하였고, 파이프의 연결 작업이 힘들고, 작업 공정이 늘어나 시공비가 증가하는 문제점이 있었다. These pipe connections must not only ensure airtightness and bonding between the pipes, but also must not easily break or break under constant vibration and shock. To this end, the conventional pipe connecting device requires a separate ring and a snap ring, such as welding the pipe and the connection of the pipe in order to increase the airtightness and bondability, the connection of the pipe is difficult, work There was a problem that the construction cost increases due to the increased process.
특히, 일반 배관용 스테인레스 강관의 특성상 두께가 0.8 ~ 1.0mm에 불과하여 시공 현장에서 용접 작업은 물론 나사 결합을 하는데 어려움이 있고, 전용 압착기를 사용하거나 확관을 하여야 하는 등 별도의 공정이 추가되어야 하는 문제점 있었다. 전용 압착기로 배관과 연결장치를 압착하여 체결하게 되면 축방향 지지력의 취약성을 초래하고, 압착기의 마모에 따른 압착성 저하로 인한 이완, 누수 등의 문제점이 있었다. 그리고, 배관의 확관에 따른 내구성 감소의 문제점, 숙련된 배관공이 필요하여 인건비가 상승하는 문제점 등도 발생하였다. In particular, due to the characteristics of stainless steel pipes for general piping, 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. There was a problem. Compression of the pipe and the connecting device by 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. In addition, problems such as durability reduction due to expansion of the pipe, skilled plumbers required, labor costs increase, etc. also occurred.
이러한 문제점을 해결하여 위하여 단순히 파이프를 연결장치 내로 삽입하는 것만으로 고정시킬 수 있고, 필요한 경우 손쉽게 다시 분리할 수 있도록 해주는 삽입 고정식 파이프 연결장치가 개발되었다. 본 출원인이 개발한 삽입 고정식 파이프 연결장치의 주요 기술구성이 대한민국 공개특허 제2009-0039630호(발명의 명칭: 파이프의 연결장치, 연결방법 및 죠 홀더의 죠 제조방법)에 상세히 개시되어 있다. 이에 개시된 연결장치를 개량한 현재의 삽입 고정식 파이프 연결장치는 죠 홀더 부분의 구성이 조금 상이한 바, 이하에서는 현재의 삽입 고정식 파이프 연결장치를 도 1 내지 도 4를 참조로 설명한다. In order to solve this problem, 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. Hereinafter, the present insertion stationary pipe connecting device will be described with reference to FIGS. 1 to 4.
삽입 고정식 파이프 연결장치(100)는 두 개의 파이프(1,2)의 대응하는 단부가 삽입되는 파이프 연결본체(110)와, 이 파이프 연결본체(110)와 파이프(1,2) 사이의 결합성, 수밀성 등을 확보해주기 위해 파이프 연결본체(110)에 차례로 삽입 설치되는 제1 오링(120), 백업링(130), 제2 오링(140), 스프링 가이드(150), 압축 스프링(160), 다수개의 죠(180)가 회동 가능하게 장착된 죠 홀더(170), 스냅링(190)을 포함한다. 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. , The first O-ring 120, the backup ring 130, the second O-ring 140, the spring guide 150, the compression spring 160, which are inserted into the pipe connection body 110 in order to ensure watertightness, etc. A plurality of jaws 180 includes a jaw holder 170 and a snap ring 190 rotatably mounted.
상기 파이프 연결본체(110)는 도 2에 도시된 바와 같이 파이프 연결본체(110)의 가운데 부분에서부터 양 끝단으로 가면서 중앙부(Ⅰ), 전이부(Ⅱ), 선단부(Ⅲ)의 세 부분으로 구분된다. 본 실시예의 파이프 연결본체(110)는 양 쪽이 동일하므로 오른쪽 부분의 구성만을 기준으로 설명하기로 한다.As shown in FIG. 2, 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.
상기 파이프 연결본체(110)의 중앙부(Ⅰ)는 삽입되는 파이프(1,2)의 직경과 거의 동일한 직경을 가지고, 중앙부(Ⅰ)의 내주면 가운데 부분에는 파이프(1,2)가 더 이상 삽입되지 않도록 해주는 파이프 걸림턱(112)이 형성된다. 상기 파이프 연결본체(110)의 전이부(Ⅱ)는 상기 중앙부(Ⅰ)에 비해 직경이 확대되고 상술한 제1 오링(120), 백업링(130), 제2 오링(140), 스프링 가이드(150) 및 압축 스프링(160)이 차례로 삽입 설치된다. 상기 파이프 연결본체(110)의 선단부(Ⅲ)에는 죠(180)가 회동 가능하게 설치된 죠 홀더(170)가 좌우 방향으로 이동 가능하게 설치된다. 그리고, 스냅링(190)이 파이프 연결본체(110)의 내주면에 형성된 삽입홈(113)에 삽입 고정되고, 상기 죠 홀더(170)의 스냅링 걸림턱(174)에 걸림 결합되어 상술한 부품(120 ~ 190)이 외부로 빠져나가지 않도록 해준다. 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. In addition, 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.
도 3을 참조로 삽입 고정식 파이프 연결장치에 파이프를 연결시키는 과정을 간단히 설명한다. Referring to Figure 3 will be briefly described the process of connecting the pipe to the stationary pipe connection device.
먼저, 파이프(1)를 파이프 연결본체(110)의 선단부(Ⅲ) 영역으로 삽입하게 되면 파이프(1)의 외주면에 죠(180)의 톱니(181)가 맞물리게 된다(도 3의 (a) 참조). 이 때, 죠(180)가 시계 반대방향으로 약간 회동하게 되고, 죠(180)의 경사면(182)이 파이프 연결본체(110)의 내주면에 형성된 경사면(111)을 따라 왼쪽으로 이동하게 된다. 그 결과, 죠(180)가 벌어지게 되면서 파이프(1)는 계속하여 삽입되고, 이와 동시에 죠 홀더(170)를 받치고 있던 압축 스프링(160)이 압축된다(도 3의 (b) 참조). 파이프(1)의 선단부가 파이프 연결본체(110)의 중앙부(Ⅰ)에 마련된 파이프 걸림턱(112)에 걸리게 되면 파이프(1)의 삽입이 중지되고, 상기 죠 홀더(170)는 압축 스프링(160)의 복원력에 의해 오른쪽으로 이동하게 된다. 그 결과, 죠(180)의 톱니(181)가 파이프(1)의 외주면에 강하게 맞물리게 되어 파이프(1)가 빠지지 않도록 해준다(도 3의 (c) 참조).First, when the pipe 1 is inserted into the distal end III of the pipe connecting body 110, the teeth 181 of the jaw 180 engage with the outer circumferential surface of the pipe 1 (see FIG. 3 (a)). ). At this time, the jaw 180 is rotated slightly counterclockwise, the inclined surface 182 of the jaw 180 is moved to the left along the inclined surface 111 formed on the inner circumferential surface of the pipe connection body (110). As a result, as the jaw 180 opens, the pipe 1 is continuously inserted, and at the same time, the compression spring 160 supporting the jaw holder 170 is compressed (see FIG. 3 (b)). When the front end of the pipe 1 is caught by the pipe engaging jaw 112 provided in the central portion (I) of the pipe connecting body 110, the insertion of the pipe (1) is stopped, the jaw holder 170 is a compression spring 160 ) Is moved to the right by the restoring force. As a result, the teeth 181 of the jaw 180 are strongly engaged with the outer circumferential surface of the pipe 1 to prevent the pipe 1 from being pulled out (see FIG. 3C).
도 4를 참조로 삽입 고정식 파이프 연결장치로부터 파이프를 분리하는 과정을 간단히 설명한다. Referring to Figure 4 will be briefly described the process of separating the pipe from the insertion-type pipe connection.
먼저, 파이프(1)는 그대로 둔 상태에서 죠 홀더(170)의 플랜지부(173)를 밀어서 죠 홀더(170)를 왼쪽으로 이동시킨다(도 4의 (a)). 죠 홀더(170)에 설치된 죠(180)가 시계 반대 방향으로 약간 회동되고, 파이프 연결본체(110)의 경사면(111)을 따라 왼쪽으로 이동하면서 벌어지게 되며, 이와 동시에 죠 홀더(170)를 받치고 있던 압축 스프링(160)이 압축된다. 그 결과, 죠(180)의 톱니(181)가 파이프(1)와 맞물려서 발생하던 구속력이 해제되므로, 파이프(1)를 잡아 당겨 파이프 연결본체(110)로부터 손쉽게 분리할 수 있다(도 4의 (b)). 파이프(1)가 완전히 분리된 후 죠 홀더(170)를 누르고 있던 힘을 제거하면, 압축 스프링(160)의 복원력에 의해 죠 홀더(170)는 원래 위치로 돌아간다(도 4의 (c)).First, in the state where the pipe 1 is left as it is, 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. As a result, since the restraining force generated when the teeth 181 of the jaw 180 is engaged with the pipe 1 is released, the pipe 1 can be pulled out to be easily detached from the pipe connecting body 110 (FIG. 4 ( b)). After the pipe 1 has been completely removed, 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)). .
이상에서 설명한 구성을 가진 본 출원인의 삽입 고정식 파이프 연결장치(100)는 용접, 압착, 나사결합 등의 추가 공정없이 파이프를 삽입하는 것만으로 간단히 고정시킬 수 있고, 나아가 죠 홀더(170)를 눌러주는 것만으로 간단히 분리할 수 있다는 기술적 장점으로 인해 당업계에서 큰 각광을 받아 왔다.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.
그러나, 이 삽입 고정식 파이프 연결장치는 파이프 연결본체(110)를 주조 공정 및 CNC 가공 공정을 통해 제조하였기 때문에 생산 단가가 높다는 문제점이 있었고, 이 밖에 구조적인 부분에서의 개선 사항도 발견되었다. However, 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.
예를 들어, 도 2의 "A" 부분에 표시된 파이프 걸림턱(112) 부분은 정밀 주조 공정으로도 만들 수 없기 때문에 파이프 연결본체(110)의 중앙부(Ⅰ) 전체를 파이프 걸림턱(112) 만큼 두껍게 만든 다음 나머지 부분을 CNC 절삭 가공을 통해 제거함으로써 파이프 걸림턱(112)을 만들었다. 이는 고가의 스테인레스 금속 재료의 낭비는 물론 CNC 가공에 따른 비용 증가를 초래하였다. 통상적으로 CNC 절삭 가공을 통해 버려지는 금속 재료의 양이 전체 금속 재료 중량의 30% 정도를 차지하는 것으로 알려져 있다.For example, since the pipe catching jaw 112 portion shown in the portion “A” of FIG. 2 cannot be made even by a precision casting process, 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.
또한, 도 2의 "B" 부분에 표시된 바와 같이 CNC 절삭 가공을 통해 파이프 연결본체(110)의 내주면에 직접 경사면(111)을 형성하여 왔다. 이는 앞서 얘기한 금속재료의 낭비, CNC 가공에 따른 비용 증가 뿐만 아니라, 파이프 연결본체(110)의 두께를 감소시켜 강한 외부 응력이 가해질 경우 파괴의 원인이 될 수 있는 문제점이 있었다. 지진이 빈번하게 발생하는 일본, 대만 지역에 수출하기 위해서는 높은 내진 설계가 요구되고, 이를 위해서는 경사면(111) 형성에 따른 두께 감소의 문제점을 해결할 필요가 있었다. In addition, as shown in part “B” of FIG. 2, 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). In order to export to Japan and Taiwan where earthquakes occur frequently, 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.
종래의 삽입 고정식 파이프 연결장치(200)의 또 다른 예가 대한민국 등록특허 제10-1326079호(발명의 명칭: 파이프 연결장치)에 개시되어 있는 바, 이 장치의 구성을 도 5를 참조로 간단히 설명한다.Another example of a conventional insert-and-fix pipe connecting device 200 is disclosed in Korean Patent No. 10-1326079 (name of the invention: pipe connecting device), the configuration of the device will be briefly described with reference to FIG. .
이 삽입식 파이프 연결장치(200)는 파이프 연결본체(210)의 가운데 부분에서부터 양 끝단으로 가면서 중앙부(Ⅰ), 전이부(Ⅱ), 선단부(Ⅲ)의 세 부분으로 구분된다는 점에서 앞서 도 2를 참조로 설명한 삽입 고정식 파이프 연결장치(100)와 동일하다.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.
그러나, 이 삽입식 파이프 연결장치(200)는 도 5의 "A" 부분에서 보듯이 중앙부(Ⅰ)에 파이프의 삽입 길이를 제한하기 위한 파이프 걸림턱 구성이 없으며, 중앙부(Ⅰ)에서 전이부(Ⅱ)로 확관되는 부분에 형성된 단턱(211)이 파이프 걸림턱으로 기능하도록 구성된다. 또한, 중앙부(Ⅰ) 및 전이부(Ⅱ)의 내부는 비어있고, 선단부(Ⅲ) 내에 파이프를 고정시키는데 사용되는 모든 부품이 삽입 설치된다는 점에서 도 2의 파이프 연결장치와 구별된다.However, 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. In addition, 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.
보다 상세하게 설명하면, 삽입식 파이프 연결장치(200)의 선단부(Ⅲ)에 오링 가이드(220), 제1 오링(230), 스프링 가이드(240), 압축 스프링(250), 경사면(265)이 형성된 케이싱부(260), 죠(275)가 상기 경사면(265)을 따라 이동 가능하게 설치된 죠 홀더(270), 제2 오링(280) 및 오링 가이드(290)이 차례로 삽입 설치된다. 파이프 연결본체(210)의 양 끝단(215)이 굽힘 가공되어 상술한 부품(220 ~ 290)이 외부로 빠져나가지 않도록 해준다. 도 5의 "B" 부분에서 보듯이 파이프 연결본체(210)의 내주면에 죠(260)의 이동을 가이드하는 경사면이 형성된 것이 아니라 케이싱부(260)의 내부에 경사면(265)이 형성되어 있다는 점에서 도2의 파이프 연결장치와 구별된다.In more detail, 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. As shown in part “B” of FIG. 5, 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.
그러나, 이 삽입식 파이프 연결장치(200)는 상술한 모든 부품(220 ~ 290)이 파이프 연결본체(210)의 선단부(Ⅲ)에 설치되기 때문에, 케이싱부(260)가 탄성이 있는 고무재질로 된 오링(230,280)과 같은 공간 내에서 서로 밀착된 상태로 설치된다. 그 결과, 케이싱부(260), 보다 정확하게는 케이싱부(260)의 경사면(265)의 위치가 고정되지 못하고 오링(230,280)의 탄성 변형에 따라 좌우로 조금씩 움직이게 되며, 결과적으로 죠 홀더(270)의 이동을 정확하게 제어하는 것을 어렵게 만들었다. 따라서, 도 4에서와 같이 죠 홀더(240)를 이동시켜 삽입식 파이프 연결장치(200)로부터 파이프를 분리시키는 구성을 갖출 수 없는 구조적 한계를 가지고 있었다. However, 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. As a result, 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. This makes it difficult to accurately control the movement of the. Therefore, as shown in FIG. 4, 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.
또한, 이 삽입식 파이프 연결장치(200)는 별도의 스냅링을 사용하지 않고 상술한 모든 부품(220 ~ 290)을 삽입한 후에 파이프 연결본체(210)의 양 끝단(215)을 굽힘 가공함으로써 삽입된 부품(220 ~ 290)이 외부로 빠져나가지 못하도록 해준다. 그러나, 부품의 조립이 잘못되어 불량이 난 경우에도 파이프 연결본체(210)의 양 끝단(215)을 다시 펼 수가 없기 때문에 연결장치 전체를 폐기 처분해야 하는 문제점이 있었다.In addition, 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. However, there is a problem that 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.
본 발명은 이러한 종래의 삽입 고정식 파이프 연결장치가 가지는 구조적인 문제점을 해결함과 동시에 생산 단가를 획기적으로 절감할 수 있도록 해주는 파이프의 연결 및 분리가 모두 가능한 삽입 고정식 파이프 연결장치를 제공하는데 그 주된 목적이 있다.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.
상기한 목적을 달성하기 위한 본 발명에 따른 삽입 고정식 파이프 연결장치는, 파이프가 삽입되는 파이프 연결본체는 가운데 부분에서부터 끝단으로 가면서 직경이 단계적으로 증가하는 중앙부, 1차 확관부 및 2차 확관부로 구성되고, 상기 중앙부에는 파이프의 삽입 길이를 제한하는 파이프 스토퍼가 삽입 설치되며, 상기 1차 확관부에는 수밀성을 높이기 위한 오링과, 압축 스프링이 삽입 설치되고, 상기 2차 확관부에는 내주면에 경사면이 형성된 링 형태의 죠 테이퍼가 끼움 결합되며, 상기 압축 스프링에 의해 탄성적으로 지지되면서 상기 죠 테이퍼의 내부를 이동 가능하도록 마련된 죠 홀더가 삽입 설치되고, 상기 죠 테이퍼의 경사면을 따라 이동하면서 하부에는 상기 파이프와 맞물리도록 톱니가 형성된 복수개의 죠가 상기 죠 홀더 상에 장착될 수 있다.Insertion-type fixed pipe connecting device according to the present invention 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. There.
또한, 상기 파이프 스토퍼는 링 형태로 구성되며, 일측단의 내주면에는 상기 파이프의 선단이 걸리도록 내측 걸림턱이 형성되고, 타측단의 외주면에는 상기 1차 확관부의 연결 부위에 걸림 결합되도록 외측 걸림턱이 형성될 수 있다.In addition, 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.
또한, 상기 오링은 수밀성을 높이기 위하여 백업링의 양쪽에 설치되는 제1 오링 및 제2 오링으로 구성되고, 상기 제1 오링은 상기 파이프 스토퍼에 밀착 설치되며, 상기 제2 오링은 상기 백업링에 밀착 설치될 수 있다.In addition, 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.
또한, 상기 압축 스프링은 상기 오링에 밀착 설치되는 스프링 가이드 상에 지지 설치될 수 있다.In addition, the compression spring may be supported on the spring guide is installed in close contact with the O-ring.
또한, 상기 파이프 연결본체는 상기 2차 확관부의 끝단이 굽힘 가공되어 상기 죠 테이퍼가 상기 2차 확관부의 내부에 고정되도록 구성될 수 있다.In addition, 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.
또한, 상기 죠 홀더는 링 형태의 몸체부 상에 상기 죠의 톱니가 상기 몸체부의 내주면 안쪽으로 돌출되게 설치되도록 해주는 장착홀이 형성될 수 있다.In addition, 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.
또한, 상기 죠 홀더는 링 형태의 몸체부의 외주면 상에 상기 압축 스프링에 의해 지지되도록 해주는 지지턱이 형성될 수 있다.In addition, 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.
또한, 상기 죠 홀더는 링 형태의 몸체부의 외주면 상에 분리 방지턱이 형성되고, 상기 죠 테이퍼의 내주면에 형성된 걸림홈 상에 스냅링이 삽입 설치되며, 상기 죠 홀더의 분리 방지턱이 상기 스냅링에 걸리도록 구성될 수 있다.In addition, 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.
또한, 상기 죠는 그 상부에 상기 죠 테이퍼의 경사면과 대응되는 경사면이 형성될 수 있다.In addition, the jaw may be formed on the inclined surface corresponding to the inclined surface of the jaw taper.
이상과 같이 구성된 본 발명에 따른 삽입 고정식 파이프 연결장치에 의하면, 파이프 연결본체를 금속 강관의 2차례 확관 가공 공정을 통해 제조함으로써, 주조 공정 및 CNC 절삭 가공 공정을 통해 제조하던 경우보다 획기적인 원가 절감을 가져올 수 있다. According to the insert-type fixed pipe connecting device according to the present invention configured as described above, by manufacturing the pipe connecting body through the two expansion pipe processing process of the metal steel pipe, a significant cost savings than when manufactured through the casting process and CNC cutting process Can bring
또한, 얇은 두께의 금속 강관을 사용하더라도 죠 테이퍼라는 별개의 부품을 통해 죠의 이동에 필요한 경사면을 형성해 줌과 동시에 금속 강관의 두께를 보강해줌으로써 강한 외력에도 견딜 수 있는 구조적 안정성을 달성할 수 있다. 이에 의해, 종래의 파이프 연결본체의 경우 그 내주면에 직접 경사면을 형성함으로써, 이 부분의 두께가 상대적으로 얇아져 지진과 같이 외부에서 강한 외력이 가해질 때 파단의 시작점이 될 수 있는 위험성을 방지해 준다. In addition, even if a thin metal steel pipe is used, it is possible to achieve structural stability to withstand strong external forces by forming a slope required for moving the jaw through a separate part called a jaw taper and reinforcing the thickness of the metal steel pipe. . Accordingly, in the case of the conventional pipe connecting body, 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.
또한, 죠의 이동에 필요한 경사면이 마련된 죠 테이퍼를 파이프 연결본체의 2차 확관부에 완전히 고정시켜 움직이지 않도록 설치함으로써, 죠의 이동을 정확하게 제어할 수 있도록 하여 파이프를 연결시키는 것뿐만 아니라 분리시키는 기능도 수행할 수 있도록 해준다.In addition, 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.
또한, 파이프 연결본체의 2차 확관부의 끝단을 굽힘 가공하더라도 이를 이용하지 않고 죠 테이퍼 상에 삽입 설치된 스냅링에 의해 죠 홀더가 빠져 나가지 못하도록 구성함으로써, 조립 불량 등이 발생하더라도 스냅링만을 제거함으로써 내부 부품을 쉽게 빼낼 수 있도록 해준다. In addition, even when the end of the secondary expansion pipe of the pipe connecting body is not used, the jaw holder cannot be pulled out by the snap ring inserted on the jaw taper without using it. To make it easier to remove.
도 1은 종래의 삽입 고정식 파이프 연결장치의 구조를 나타낸 분해 사시도.1 is an exploded perspective view showing the structure of a conventional insert-type fixed pipe connection device.
도 2는 도 1의 삽입 고정식 파이프 연결장치의 구조를 나타낸 단면도.Figure 2 is a cross-sectional view showing the structure of the insertion fixed pipe connecting device of FIG.
도 3은 도 1의 삽입 고정식 파이프 연결장치의 파이프 삽입 과정을 나타낸 도면.Figure 3 is a view showing a pipe insertion process of the insertion stationary pipe connection of FIG.
도 4는 도 1의 삽입 고정식 파이프 연결장치의 파이프 분리 과정을 나타낸 도면.4 is a view illustrating a pipe separating process of the insertable pipe connecting device of FIG. 1.
도 5는 분리가 불가능한 종래의 또 다른 삽입 고정식 파이프 연결장치의 구조를 나타낸 도면.Figure 5 is a view showing the structure of another conventional fixed pipe connection device is not removable.
도 6은 본 발명에 따른 삽입 고정식 파이프 연결장치의 구조를 나타낸 분해 사시도.Figure 6 is an exploded perspective view showing the structure of the insertion fixed pipe connecting device according to the present invention.
도 7은 본 발명에 따른 삽입 고정식 파이프 연결장치의 구조를 나타낸 단면도.Figure 7 is a cross-sectional view showing the structure of the insertion fixed pipe connection device according to the present invention.
도 8은 본 발명에 따른 파이프 스토퍼의 상세한 구성을 나타낸 도면.8 shows a detailed configuration of a pipe stopper according to the present invention.
도 9는 본 발명에 따른 죠 테이퍼의 상세한 구성을 나타낸 도면.9 shows a detailed configuration of a jaw taper according to the present invention.
도 10은 죠 테이퍼가 삽입된 상태의 연결구 본체를 나타낸 단면도.Fig. 10 is a sectional view of the connector body in the state where a jaw taper is inserted.
도 11은 본 발명에 따른 삽입 고정식 파이프 연결장치의 파이프 삽입 과정을 나타낸 도면.Figure 11 is a view showing a pipe insertion process of the insertion stationary pipe connection apparatus according to the present invention.
도 12는 본 발명에 따른 삽입 고정식 파이프 연결장치의 파이프 분리 과정을 나타낸 도면. 12 is a view showing a pipe separation process of the fixed pipe connection apparatus according to the present invention.
이하에서 첨부된 도면을 참조로 본 발명에 따른 바람직한 일 실시예를 보다 상세히 설명한다. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
이들 실시예는 당업자가 본 발명을 실시할 수 있기에 충분하도록 상세히 설명된다. 본 발명의 다양한 실시예는 서로 다르지만 상호 배타적일 필요는 없음이 이해되어야 한다. 예를 들어, 여기에 기재되어 있는 특정 형상, 구조 및 특성은 일 실시예에 관련하여 본 발명의 정신 및 범위를 벗어나지 않으면서 다른 실시예로 구현될 수 있다. 또한, 각각의 개시된 실시예 내의 개별 구성요소의 위치 또는 배치는 본 발명의 정신 및 범위를 벗어나지 않으면서 변경될 수 있음이 이해되어야 한다. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention with respect to one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention.
따라서, 후술하는 상세한 설명은 한정적인 의미로서 취하려는 것이 아니며, 본 발명의 범위는 적절하게 설명된다면 그 청구항들이 주장하는 것과 균등한 모든 범위와 더불어 첨부된 청구항에 의해서만 한정된다. 도면에서 유사한 참조부호는 여러 측면에 걸쳐서 동일하거나 유사한 기능을 지칭한다.Accordingly, the following detailed description is not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.
도 6은 본 발명에 따른 삽입 고정식 파이프 연결장치의 구조를 나타낸 분해 사시도이고, 도 7은 그 단면도이다.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.
삽입 고정식 파이프 연결장치(300)는 두 개의 파이프(1,2)의 대응하는 단부가 삽입되는 파이프 연결본체(301)와, 이 파이프 연결본체(301)와 파이프(1,2) 사이의 결합성, 수밀성 등을 확보해주기 위해 파이프 연결본체(301)에 차례로 삽입 설치되는 파이프 스토퍼(310), 제1 오링(320), 백업링(330), 제2 오링(340), 스프링 가이드(350), 압축 스프링(360), 죠 테이퍼(370), 다수개의 죠(390)가 장착된 죠 홀더(380) 및 스냅링(375)을 포함한다. 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. A compression spring 360, a jaw taper 370, a jaw holder 380 mounted with a plurality of jaws 390, and a snap ring 375.
여기서, 상기 파이프 연결본체(301)는 일직선 형태로 도시되어 있으나, 본 발명은 이에 한정되지 아니하며, 엘보형, T자형, 십자형 등 다양한 형태로 구성될 수 있다.Here, 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.
상기 파이프 연결본체(301)는 도 7에 도시된 바와 같이 파이프 연결본체(301)의 가운데 부분에서부터 양 끝단으로 가면서 직경이 단계적으로 증가하는 중앙부(Ⅰ), 1차 확관부(Ⅱ), 2차 확관부(Ⅲ)의 세 부분으로 구분된다. 금속 강관을 2차례 확관 공정을 통해 파이프 연결본체(301)로 구성하는 것이 도 2에 도시된 종래의 것과 구별되는 본 발명의 특징적 기술구성 중 하나이다. 도 2에 도시된 종래의 파이프 연결본체(110)는 주조 공정 및 CNC 가공 공정을 통해 제조되며, 이로 인해 금속 재료의 30% 정도가 낭비되고 CNC 절삭 가공의 추가로 인해 제조 단가가 크게 증가하는 문제점이 있었다는 것은 이미 상술한 바와 같다. As shown in FIG. 7, 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.
본 발명에 따르면 파이프 연결본체(301)를 종래의 주조 공정 및 CNC 가공 공정이 아니라, 일정한 두께를 가진 금속 강관, 그 중에서도 내식성이 높은 스테인레스 강관을 이용하여 별도의 절삭 공정없이 2차례의 확관 공정만으로 파이프 연결본체(301)를 제조할 수 있기 때문에 생산 단가를 크게 절감시켜준다. According to the present invention, 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.
나아가, 본 발명은 주조 공정을 사용하지 않고 금속 강관을 확관하여 제조함에 따라 고려되어야 할 여러 가지 기계적, 구조적 사항을 해결하기 위해 다음과 같은 새로운 구성을 채택하였다. Furthermore, 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.
첫째, 파이프 스토퍼(310)를 새로이 추가하였다. 도 2 및 도 7을 비교해 보면, 본 발명에 따른 파이프 연결본체(301)의 중앙부(Ⅰ)에는 종래와 같은 파이프 걸림턱(112)이 형성되어 있지 않다. 종래에는 이 파이프 걸림턱(112)을 형성하기 위하여 중앙부를 두껍게 주조한 다음 CNC 가공을 통해 나머지 부분을 절삭하여야 했으며, 이는 금속 재료의 낭비와 제조 단가를 증가시키는 주요 원인이 되었다. 이에 반해, 본 발명자는 파이프 연결본체(301)의 중앙부(Ⅰ)는 금속 강관의 원래 형태 그대로 사용하는 대신에 파이프의 삽입 길이를 제한하기 위하여 상기 파이프 스토퍼(310)를 삽입 설치함으로써 종래의 파이프 걸림턱(112) 역할을 대신하도록 한 것이다. 상기 파이프 스토퍼(310)의 주요 구성에 대해서는 도 8을 참조로 후술하기로 한다.First, 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.
둘째, 죠 테이퍼(370)를 새로이 추가하였다. 도 2 및 도 7을 비교해 보면, 종래의 파이프 연결본체(110)의 선단부(Ⅲ)에 직접 경사면(111)이 형성되고, 그 결과 파이프 연결본체(110)의 두께를 감소시켜 기계적 강성을 저하시키는 원인이 되었다. 본 발명에 따르면 일정한 두께를 가진 금속 강관을 사용하는데, 통상적으로 사용되는 스테인레스 강관의 경우 두께가 0.8 ~ 1mm에 불과하므로 이 강관을 절삭 가공하여 경사면을 형성할 수는 없다. 그래서, 본 발명자는 파이프 연결본체(301)의 제2 확관부(Ⅲ)에 경사면(371)이 형성된 죠 테이퍼(370)를 끼움 결합시키는 방식으로 이 문제를 해결하였다. 이에 의하면 상기 죠 테이퍼(370)가 경사면(371)을 제공할 뿐만 아니라, 죠 테이퍼(370) 자체의 두께로 인해 파이프 연결본체(301)의 제2 확관부(Ⅲ)의 두께를 증가시켜 실질적으로 파이프 연결본체(110)의 기계적 강성을 향상시켜 준다. 상기 죠 테이퍼(370)의 주요 구성에 대해서는 도 9를 참조로 후술하기로 한다.Second, 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. Accordingly, 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.
세째, 파이프 연결본체(301)의 끝단(302)를 굽힘 가공함으로써, 죠 테이퍼(370)를 파이프 연결본체(301)의 제2 확관부(Ⅲ) 내에 완전히 고정되어 움직이지 않도록 구성하였다. 이에 의해, 도 5에 도시된 종래의 삽입식 파이프 연결장치에서 경사면(243)이 형성된 죠 홀더(240)가 양쪽으로 밀착 설치된 오링(230, 270)에 의해 좌우로 유동됨으로써, 파이프를 분리시키는 기능을 추가할 수 없다는 문제점을 해결하였다.Third, by bending the end 302 of the pipe connecting body 301, 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. As a result, in the conventional insert pipe connecting device shown in FIG. 5, 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.
네째, 죠 홀더(380)는 굽힘 가공된 상기 파이프 연결본체(301)의 끝단(302)에 의해 걸려지는 것이 아니라 상기 죠 테이퍼(370)에 삽입 설치되는 스냅링(375)에 의해 걸려서 파이프 연결본체(301)의 외부로 빠져나가지 못하도록 구성하였다. 그 결과, 조립 불량 등이 발생한 경우 상기 스냅링(375)을 제거함으로써 손쉽게 파이프 연결본체(301)의 내부에 삽입 설치된 부품을 빼내고 재조립할 수가 있다. 이는 도 5에 도시된 종래의 삽입식 파이프 연결장치에서 파이프 연결본체(210)의 끝단(215)에 의해 내부에 설치된 부품이 빠져 나가지 못하다도록 한 경우에 파이프 연결본체(210)의 끝단(215)을 다시 펼 수 없기 때문에, 조립 불량 등이 발생하면 파이프 연결본체(210) 전체를 폐기 처분해야 하는 문제점을 해결하였다. Fourth, 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. As a result, when assembly failure or the like occurs, 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.
이하에서, 상기한 기술구성을 포함하여 본 발명의 삽입 고정식 파이프 연결장치의 구체적인 구성을 보다 상세히 설명하기로 한다. Hereinafter, the specific configuration of the insert-type fixed pipe connection device of the present invention including the above-described technical configuration will be described in more detail.
상기 파이프 연결본체(301)의 중앙부(Ⅰ)는 삽입되는 파이프(1,2)의 직경보다 조금 크게 형성되고, 상기 파이프 스토퍼(310)가 삽입 고정된다. 상기 파이프 스토퍼(310)는 도 8에 도시된 바와 같이 링 형태로 구성되며, 일측단의 내주면에는 상기 파이프의 선단이 걸리도록 내측 걸림턱(311)이 형성되고, 타측단의 외주면에는 상기 1차 확관부(Ⅱ)의 연결 부위에 걸림 결합되도록 외측 걸림턱(312)이 형성된다. 파이프 스토퍼(310)가 파이프 연결본체(301)에 삽입되면, 상기 외측 걸림턱(312)이 상기 파이프 연결본체(301)의 중앙부(Ⅰ)와 제1 확관부(Ⅱ) 사이의 단턱에 걸려짐으로써 원하는 위치에 고정된다. 도 7의 "A" 부분에서 보듯이 파이프 스토퍼(310)에 형성된 내측 걸림턱(311)이 파이프가 삽입될 때 파이프의 선단에 걸림 결합됨으로써 파이프의 삽입 길이를 제한한다. 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). 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.
상기 파이프 연결본체(301)의 제1 확관부(Ⅱ)에는 확관 공정을 통해 상기 중앙부(Ⅰ)에 비해 직경이 확대되고 상술한 제1 오링(320), 백업링(330), 제2 오링(340), 스프링 가이드(350) 및 압축 스프링(360)이 차례로 삽입 설치된다. 오링은 하나만 설치될 수도 있으나, 수밀성을 높이기 위해 2개의 제1 오링(320) 및 제2 오링(340)이 백업링(330)의 양쪽에 이중으로 설치되는 것이 바람직하다. 상기 제1 오링(320)은 상기 파이프 스토퍼(310)에 밀착 설치되고, 상기 제2 오링(340)은 상기 백업링(330)에 밀착 설치되어 수밀성을 향상시킨다. 여기서 밀착이라 함은 접착과 같이 하나로 붙는다는 좁은 의미가 아니라, 공간의 밀폐성을 높이기 위하여 서로 근접하여 설치된다는 넓은 의미로 해석되어야 한다.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. Here, 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.
또한, 상기 스프링 가이드(350)는 상기 제2 오링(340)에 밀착 설치되고, 이 스프링 가이드(350) 상에 상기 압축 스프링(360)이 지지 설치된다. 상기 스프링 가이드(350)에는 압축 스프링(360)이 안정적으로 지지 설치될 수 있도록 안착홈이 형성되는 것이 바람직하다. 도 6 등에는 상기 압축 스프링(360)의 대표적인 예로서 코일 스프링이 도시되어 있으나, 본 발명은 이에 한정되지 아니하고, 상기 죠 홀더(380)를 탄성적으로 지지할 수 있는 것이면 판 스프링 등 어떤 형태의 스프링도 사용 가능하다. In addition, 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.
상기 파이프 연결본체(301)의 제2 확관부(Ⅲ)는 확관 공정을 통해 상기 제1 확관부(Ⅱ)에 비해 직경이 확대되고 상술한 죠 테이퍼(370), 다수개의 죠(390)가 설치된 죠 홀더(380) 및 스냅링(375)이 차례로 삽입 설치된다. 먼저, 상기 죠 테이퍼(370)는 도 9에 도시된 바와 같이, 내주면에 경사면(371)이 형성된 링 형태로 구성된다. 상기 경사면(371)은 파이프 연결본체(301)의 제1 확관부(Ⅱ) 쪽으로 갈수록 상방 경사지도록 형성되어 상기 죠(390)가 이 경사면(371)을 따라 파이프 연결본체(301)의 내부로 이동하면서 죠(390)가 벌어지도록 구성된다. 여기서, 죠(390)가 벌어진다는 것은 죠 홀더(380)의 둘레를 따라 일정 간격으로 설치된 다수개의 죠(390)를 연결하는 원(파이프의 단면과 동일 평면상의 원)의 직경이 커진다는 것을 의미한다. 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. First, 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. And jaw 390 is configured to open. Here, 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.
상기 파이프 연결본체(301)의 2차 확관부(Ⅲ)의 끝단(302)이 굽힘 가공되어 상기 2차 확관부(Ⅱ)의 내부에 억지 끼움 방식으로 결합된 상기 죠 테이퍼(370)가 완전히 고정되도록 해준다. 이는 도 2에 도시된 종래의 삽입 고정식 파이프 연결장치(100)에서 파이프 연결본체(110)의 선단부(Ⅲ) 자체에 경사면(111)이 일체로 형성된 것과 동일한 효과를 나타낸다. 더욱이, 본 발명에 따르면, 상기 죠 테이퍼(370)가 파이프 연결본체(301)와 동일한 스테인레스 강관 재질로 구성되어 실질적으로 파이프 연결본체(301)의 2차 확관부(Ⅲ)의 두께를 고정시키는 효과도 나타낸다.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. To make it possible. 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. Furthermore, according to the present invention, 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.
상기 죠 홀더(380)는 상기 압축 스프링(360)에 의해 탄성적으로 지지되면서 링 형태로 된 죠 테이퍼(370)의 내부를 이동 가능하도록 삽입 설치된다. 이를 위해 죠 홀더(380)는 링 형태의 몸체부(381)의 외주면 상에 압축 스프링(360)에 의해 지지되도록 해주는 지지턱(385)이 형성된다. 그 결과, 죠 홀더(380)는 압축 스프링(360)에 의해 탄성 바이어스된 상태로 이동된다. 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.
또한, 상기 죠 홀더(380)는 링 형태의 몸체부(381)의 외주면 상에 분리 방지턱(384)이 형성되고, 죠 테이퍼(370)의 내주면에 형성된 걸림홈(372) 상에 스냅링(375)이 삽입 설치되며, 상기 죠 홀더(380)의 분리 방지턱(384)이 상기 스냅링(375)에 걸리도록 구성된다. 그 결과, 죠 홀더(380)를 포함하여 파이프 연결본체(301)의 내부에 삽입 설치되는 모든 부품(310 ~ 380)이 파이프 연결본체(301)의 외부로 빠져나가지 못하도록 구성된다. 본 발명은 이와 같이 굽힘 가공된 2차 확관부(Ⅲ)의 끝단(302)에 의해 죠 홀더(380)의 분리 방지턱(384)이 걸려지도록 하지 않고 스냅링(375)에 의해 걸려지도록 구성함으로써, 필요한 경우에는 스냅링(375)을 제거하는 것만으로 파이프 연결본체(301)로부터 모든 부품(310 ~ 380)을 손쉽게 분리시킬 수 있도록 한 것이다.In addition, 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. As a result, 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. According to the present invention, 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. In this case, by simply removing the snap ring 375, all parts 310 to 380 can be easily separated from the pipe connection body 301.
이 죠 홀더(380) 상에는 죠 테이퍼(370)의 경사면(371)을 따라 이동하면서 하부에는 파이프와 맞물리도록 톱니(391)가 형성된 죠(390)가 장착된다. 보다 상세하게는, 상기 죠(390)는 도 6에 도시된 바와 같이 죠 홀더(380)의 외주면 둘레를 따라 일정 간격으로 형성된 복수개의 장착홀(382) 내에 삽입 장착된다. 그리고, 도 7의 "B" 부분에서 보듯이, 상기 죠(390)의 상부에는 죠 테이퍼(370)의 경사면(371)과 대응되는 경사면(392)이 형성될 수 있다. 죠(390)는 상기 경사면(392)이 죠 테이퍼(370)의 내주면에 형성된 경사면(371)을 타고서 부드럽게 이동될 수 있도록 구성된다. On the jaw holder 380, 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.
도 10은 스테인레스 강관으로 된 최초 파이프 연결본체(301)에 대해 2차례 확관 공정을 수행한 다음, 죠 테이퍼(370)를 끼움 고정시키는 공정을 완료한 상태를 나타낸다. 본 발명의 파이프 연결장치는 파이프 연결본체(301)를 오일 포밍 등의 방법으로 도 10에 도시된 형태로 1차 제조된 후, 파이프 스토퍼(310)로부터 죠 홀더(380)에 이르는 모든 부품을 1차 제조된 파이프 연결본체(301)에 삽입 설치하는 조립 공정을 거쳐서 최종 완성된다. 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. In the pipe connecting apparatus of the present invention, 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.
도 10에 도시된 죠 테이퍼(370)가 끼움 고정된 파이프 연결본체(301)를 도 2에 도시된 파이프 연결본체(110)와 비교해 보면, "A" 부분에서 보듯이 파이프 연결본체(301)의 중앙부(Ⅰ)에는 파이프 걸림턱 구성을 직접 형성하지 않으므로, CNC 절삭 공정이 필요없다. 또한, "B" 부분에서 보듯이 파이프 연결본체(301)의 제2 확관부(Ⅲ)에 끼움 고정된 죠 테이퍼(370)로부터 죠(390)의 이동을 제어하는데 필요한 경사면(371)이 제공되므로, 파이프 연결본체에 직접 경사면을 만들기 위해 CNC 절삭 공정을 할 필요가 없다. 이와 같이, 본 발명은 주조 공정을 대신하여 금속 강관을 확관 가공하여 제조하고 CNC 절삭 공정을 생략할 수 있도록 함으로써, 삽입식 파이프 연결장치의 제조 단가를 획기적으로 절감시킬 수 있도록 한 것이다. Comparing the pipe connection main body 301 with the jaw taper 370 fitted in FIG. 10 to the pipe connection main body 110 shown in FIG. 2, 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. Further, as shown in part "B", 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. In addition, there is no need for a CNC cutting process to make slopes directly on the pipe connection body. As described above, 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.
이하에서 도 11 및 도 12를 참조로 본 발명에 따른 삽입 고정식 파이프 연결장치를 사용하는 방법에 대하여 간단히 설명한다. Hereinafter, a method of using an insertable pipe connection device according to the present invention will be briefly described with reference to FIGS. 11 and 12.
도 11은 삽입 고정식 파이프 연결장치에 파이프를 연결하는 과정을 나타낸다. 11 shows a process of connecting a pipe to an insertion stationary pipe connection.
먼저, 파이프(1)를 파이프 연결본체(301)의 제2 확관부(Ⅲ) 영역으로 삽입하게 되면 파이프(1)의 외주면에 죠(390)의 톱니(391)가 맞물리게 된다(도 11의 (a) 참조). 이 때, 죠(390)와 파이프(1) 사이의 마찰력으로 인해 죠(390)가 그 상부에 형성된 경사면(392)이 파이프 연결본체(301)에 끼움 결합된 죠 테이퍼(370)의 내주면에 형성된 경사면(371)을 타고 왼쪽으로 이동하게 된다. 그 결과, 죠(390)가 벌어지게 되면서 파이프(1)는 계속하여 삽입되고, 이와 동시에 죠 홀더(380)를 받치고 있던 압축 스프링(360)이 압축된다(도 11의 (b) 참조). First, when the pipe 1 is inserted into the second expansion part III region of the pipe connecting body 301, the teeth 391 of the jaw 390 mesh with the outer circumferential surface of the pipe 1 (FIG. 11 ( a). At this time, due to the friction between the jaw 390 and the pipe 1, the inclined surface 392 formed on the jaw 390 is formed on the inner peripheral surface of the jaw taper 370 is fitted to the pipe connecting body 301 The inclined surface 371 is moved to the left. As a result, as the jaw 390 opens, the pipe 1 is continuously inserted, and at the same time, the compression spring 360 supporting the jaw holder 380 is compressed (see FIG. 11B).
파이프(1)의 선단부가 파이프 연결본체(301)의 중앙부(Ⅰ)에 삽입 설치된 파이프 스토퍼(310)의 내측 걸림턱(311)에 걸리게 되면 파이프(1)의 삽입이 중지되고, 상기 죠 홀더(380)는 압축 스프링(360)의 복원력에 의해 오른쪽으로 이동하게 된다. 그 결과, 죠(390)의 톱니(391)가 파이프(1)의 외주면에 강하게 맞물리게 되어 파이프(1)가 빠지지 않도록 해준다(도 11의 (c) 참조).When the front end portion of the pipe 1 is caught by the inner locking jaw 311 of the pipe stopper 310 inserted into the central portion I of the pipe connecting body 301, the insertion of the pipe 1 is stopped, and the jaw holder ( 380 is moved to the right by the restoring force of the compression spring (360). As a result, the teeth 391 of the jaw 390 are strongly engaged with the outer circumferential surface of the pipe 1 to prevent the pipe 1 from coming out (see FIG. 11C).
도 12는 삽입 고정식 파이프 연결장치로부터 파이프를 분리하는 과정을 나타낸다. 12 shows the process of separating a pipe from an insertion stationary pipe connection.
먼저, 파이프(1)는 그대로 둔 상태에서 죠 홀더(380)를 밀어서 왼쪽으로 이동시킨다(도 12의 (a)). 죠 홀더(380)에 설치된 죠(390)는 그 상부에 형성된 경사면(392)이 파이프 연결본체(301)에 끼움 결합된 죠 테이퍼(370)의 내주면에 형성된 경사면(371)을 타고 왼쪽으로 이동하게 된다. 그 결과, 죠(390)가 벌어지게 되고 이와 동시에 죠 홀더(380)를 받치고 있던 압축 스프링(360)이 압축된다(도 12의 (b) 참조). 죠(390)가 벌어지게 되면 파이프(1)에 대한 구속력이 해제되므로, 파이프(1)를 오른쪽으로 잡아 당김으로써 파이프 연결본체(301)로부터 손쉽게 분리시킬 수 있다.First, 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. As a result, 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). When 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.
파이프(1)의 분리가 완료되면, 죠 홀더(380)를 밀고 있던 힘을 제거한다. 이 때, 죠 홀더(380)는 압축 스프링(360)의 복원력에 의해 오른쪽으로 이동하게 되어 파이프(1)이 삽입되지 않은 초기 상태로 돌아간다(도 12의 (c) 참조).When the separation of the pipe 1 is completed, the force pushing the jaw holder 380 is removed. At this time, the jaw holder 380 is moved to the right by the restoring force of the compression spring 360 to return to the initial state where the pipe 1 is not inserted (see FIG. 12C).
이상과 같이 본 발명에서는 구체적인 구성 요소 등과 같은 특정 사항들과 한정된 실시예 및 도면에 의해 설명되었으나 이는 본 발명의 보다 전반적인 이해를 돕기 위해서 제공된 것일 뿐, 본 발명은 상기의 실시예에 한정되는 것은 아니며, 본 발명이 속하는 분야에서 통상적인 지식을 가진 자라면 이러한 기재로부터 다양한 수정 및 변형이 가능하다.In the present invention as described above has been described by the specific embodiments, such as specific components and limited embodiments and drawings, but this is provided to help a more general understanding of the present invention, the present invention is not limited to the above embodiments. For those skilled in the art, various modifications and variations are possible from these descriptions.
따라서, 본 발명의 사상은 설명된 실시예에 국한되어 정해져서는 아니되며, 후술하는 특허청구범위뿐 아니라 이 특허청구범위와 균등하거나 등가적 변형이 있는 모든 것들은 본 발명 사상의 범주에 속한다고 할 것이다.Therefore, the spirit of the present invention should not be limited to the described embodiments, and all the things that are equivalent to or equivalent to the claims as well as the following claims will belong to the scope of the present invention. .
300: 삽입 고정식 파이프 연결장치 310: 파이프 연결본체300: stationary fixed pipe connection device 310: pipe connection body
320: 제1 오링 330: 백업링320: first O-ring 330: backup ring
340: 제2 오링 350: 스프링 가이드340: second O-ring 350: spring guide
360: 압축 스프링 370: 죠 테이퍼360: compression spring 370: jaw taper
380: 죠 홀더 390: 죠380: jaw holder 390: jaw

Claims (9)

  1. 파이프가 삽입되는 파이프 연결본체(301)는 가운데 부분에서부터 끝단으로 가면서 직경이 단계적으로 증가하는 중앙부(Ⅰ), 1차 확관부(Ⅱ) 및 2차 확관부(Ⅲ)로 구성되고,The pipe connecting body 301 into which the pipe is inserted is composed of a central part (I), a primary expanding part (II) and a secondary expanding part (III), the diameter of which gradually increases from the middle part to the end.
    상기 중앙부(Ⅰ)에는 파이프의 삽입 길이를 제한하는 파이프 스토퍼(310)가 삽입 설치되며,The central portion (I) is inserted into the pipe stopper 310 for limiting the insertion length of the pipe,
    상기 1차 확관부(Ⅱ)에는 수밀성을 높이기 위한 오링(320,340)과, 압축 스프링(360)이 삽입 설치되고, O-rings 320 and 340 and a compression spring 360 are inserted into the primary expansion pipe II to increase watertightness.
    상기 2차 확관부(Ⅲ)에는 내주면에 경사면(371)이 형성된 링 형태의 죠 테이퍼(370)가 끼움 결합되며, 상기 압축 스프링(360)에 의해 탄성적으로 지지되면서 상기 죠 테이퍼(370)의 내부를 이동 가능하도록 마련된 죠 홀더(380)가 삽입 설치되고, 상기 죠 테이퍼(370)의 경사면(371)을 따라 이동하면서 하부에는 상기 파이프와 맞물리도록 톱니(391)가 형성된 복수개의 죠(390)가 상기 죠 홀더(380) 상에 장착되는 것을 특징으로 하는 삽입 고정식 파이프 연결장치.A jaw taper 370 of a ring shape having an inclined surface 371 formed on an inner circumferential surface thereof is fitted to the secondary expansion pipe III, and is elastically supported by the compression spring 360 to support the jaw taper 370. A plurality of jaws 390 having jaws 391 formed therein to be engaged with the pipe while moving along the inclined surface 371 of the jaw taper 370 are inserted and installed to move the inside of the jaw holder 380. Insertion stationary pipe connection, characterized in that mounted on the jaw holder (380).
  2. 청구항 1에 있어서,The method according to claim 1,
    상기 파이프 스토퍼(310)는 링 형태로 구성되며, 일측단의 내주면에는 상기 파이프의 선단이 걸리도록 내측 걸림턱(311)이 형성되고, 타측단의 외주면에는 상기 1차 확관부(Ⅱ)의 연결 부위에 걸림 결합되도록 외측 걸림턱(312)이 형성된 것을 특징으로 하는 삽입 고정식 파이프 연결장치.The pipe stopper 310 is configured in a ring shape, and an inner locking jaw 311 is formed on an inner circumferential surface of one side end thereof so as to catch the tip of the pipe, and the primary expansion pipe part II is connected to an outer circumferential surface of the other end thereof. Insertion-type fixed pipe connecting device, characterized in that the outer locking jaw (312) is formed to be coupled to the portion.
  3. 청구항 1에 있어서,The method according to claim 1,
    상기 오링(320,340)은 수밀성을 높이기 위하여 백업링(330)의 양쪽에 설치되는 제1 오링(320) 및 제2 오링(340)으로 구성되고, 상기 제1 오링(320)은 상기 파이프 스토퍼(310)에 밀착 설치되며, 상기 제2 오링(340)은 상기 백업링(330)에 밀착 설치된 것을 특징으로 하는 삽입 고정식 파이프 연결장치.The O-rings 320 and 340 may include a first O-ring 320 and a second O-ring 340 installed on both sides of the backup ring 330 to increase watertightness, and the first O-ring 320 may include the pipe stopper 310. It is installed in close contact, the second O-ring 340 is inserted and fixed pipe connection device, characterized in that installed in close contact with the backup ring (330).
  4. 청구항 1에 있어서,The method according to claim 1,
    상기 압축 스프링(360)은 상기 오링(320,340)에 밀착 설치되는 스프링 가이드(350) 상에 지지 설치된 것을 특징으로 하는 삽입 고정식 파이프 연결장치.The compression spring 360 is inserted fixed pipe connection device, characterized in that the support is installed on the spring guide 350 is installed in close contact with the O-ring (320,340).
  5. 청구항 1에 있어서,The method according to claim 1,
    상기 파이프 연결본체(301)는 상기 2차 확관부(Ⅲ)의 끝단(302)이 굽힘 가공되어 상기 죠 테이퍼(370)가 상기 2차 확관부(Ⅱ)의 내부에 고정되도록 해주는 것을 특징으로 하는 삽입 고정식 파이프 연결장치.The pipe connecting body 301 is the end 302 of the secondary expansion pipe (III) is bent so that the jaw taper 370 is fixed to the inside of the secondary expansion pipe (II), characterized in that Insertion fixed pipe connection.
  6. 청구항 1에 있어서,The method according to claim 1,
    상기 죠 홀더(380)는 링 형태의 몸체부(381) 상에 상기 죠(390)의 톱니(391)가 상기 몸체부(381)의 내주면 안쪽으로 돌출되게 설치되도록 해주는 장착홀(382)이 형성된 것을 특징으로 하는 삽입 고정식 파이프 연결장치. The jaw holder 380 has a mounting hole 382 formed so that the teeth 391 of the jaw 390 protrude into the inner circumferential surface of the body 381 on a ring-shaped body 381. Insertion type fixed pipe connection, characterized in that.
  7. 청구항 1에 있어서,The method according to claim 1,
    상기 죠 홀더(380)는 링 형태의 몸체부(381)의 외주면 상에 상기 압축 스프링(360)에 의해 지지되도록 해주는 지지턱(385)이 형성된 것을 특징으로 하는 삽입 고정식 파이프 연결장치.The jaw holder 380 is a fixed pipe connecting device, characterized in that the support jaw (385) is formed on the outer circumferential surface of the ring-shaped body portion (381) to be supported by the compression spring (360).
  8. 청구항 1에 있어서,The method according to claim 1,
    상기 죠 홀더(380)는 링 형태의 몸체부(381)의 외주면 상에 분리 방지턱(384)이 형성되고, 상기 죠 테이퍼(370)의 내주면에 형성된 걸림홈(372) 상에 스냅링(375)이 삽입 설치되며, 상기 죠 홀더(380)의 분리 방지턱(384)이 상기 스냅링(375)에 걸리도록 구성된 것을 특징으로 하는 삽입 고정식 파이프 연결장치.The jaw holder 380 has a separation preventing jaw 384 formed on the outer circumferential surface of the ring-shaped body portion 381, and a snap ring 375 is formed on the engaging groove 372 formed on the inner circumferential surface of the jaw taper 370. Insertion and installation, the fixed pipe connection device, characterized in that the separation prevention jaw (384) of the jaw holder 380 is configured to be caught by the snap ring (375).
  9. 청구항 1에 있어서,The method according to claim 1,
    상기 죠(390)는 그 상부에 상기 죠 테이퍼(370)의 경사면(371)과 대응되는 경사면(392)이 형성된 것을 특징으로 하는 삽입 고정식 파이프 연결장치.The jaw (390) is a fixed pipe connection device, characterized in that the inclined surface (392) corresponding to the inclined surface (371) of the jaw taper (370) is formed thereon.
PCT/KR2014/012462 2014-11-17 2014-12-17 Fixedly insert-type pipe connecting apparatus WO2016080581A1 (en)

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KR102389848B1 (en) * 2019-10-28 2022-04-22 홍성돈 Connecter for stainless steel pipe

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