KR102760768B1 - One-touch pipe connector - Google Patents

Abstract

The present invention relates to a one-touch pipe connecting device capable of easily and firmly connecting pipes to each other for the installation of a sprinkler.
The one-touch pipe connecting device of the present invention comprises a base socket having an outer diameter expansion portion formed therein, a covering fastened to one side centered on the outer diameter expansion portion, and a first screw thread formed on an inner surface in a direction connected to a second pipe, an adapter portion, a packing portion, an inclined sleeve portion, and a pressurizing socket screwed into the first screw thread of the base socket, wherein when the pressurizing socket moves toward the base socket, the inclined sleeve portion is pressed against the outer surface of the second pipe by the pressurizing socket, thereby forming the first pipe and the second pipe so as to maintain a connected state.

Description

{One-touch pipe connector}

The present invention relates to a one-touch pipe connection device, and more specifically, to a one-touch pipe connection device capable of easily and firmly connecting pipes to each other for the installation of a sprinkler.

A pipe system for transporting gases or fluids is constructed by forming threads at the ends of pipes of a certain length and screwing a union, which is a connecting member, to them.

Unions for pipe joints have packing inserted between the assembly surfaces of the pipe to ensure the airtightness of the pipe joint. The packing is made of synthetic rubber or heat-resistant plastic in the shape of a toroid with a circular cross-section and is used in various fields to maintain internal pressure or vacuum.

The piping for transporting the above gases and fluids is piped so that the direction is changed from the supply source to a simple connection from the target object to the use of elbow-type connecting pipes and T-type connecting pipes, and flow meters, pressure gauges, valves, etc. are installed on the pipes.

Korean Patent Registration No. 10-0588329 ('Prior Document 1') discloses a technology regarding a "joint pipe that connects a pressure reducing valve and a water meter as an integral part."

The above prior art document 1 is a joint pipe in which a male screw part is formed on one side of a body to integrally connect the outlet female screw part of a pressure reducing valve installed on the same axis between a supply-side water pipe and a customer-side water pipe and the inlet male screw part on the water meter side, and a union joint is installed to connect the male screw part on the water meter side as a connection target, wherein an O-ring is inserted and installed at the end point of the male screw part connection point of the joint pipe, a hexagonal jaw for connection is integrally formed on the outer diameter of the body, and a female screw is formed on the inner diameter of the other end where the male screw part is formed, and a support jaw member is connected and installed to prevent the union joint connected to the female screw part and penetrating the outer diameter of the body from being detached, and a packing is placed on one side of the support jaw member so as to be installed in close contact with the end of the male screw part on the water meter side as a connection target, and when connecting water pipes made of pipes, it is commonly wound around the threaded portion. It has the advantage of superior leak prevention effect compared to the existing Teflon treatment method of fastening by not putting strain on the connection of the pressure reducing valve and water meter between the supply side and the receiver side water pipes due to the airtightness of the O-ring and packing provided without using Teflon, and it improves the workability of the joint especially in narrow spaces where the water meter is installed due to the uniformity of the fastening.

In addition, Korean Utility Model Registration No. 20-0488505 ('Prior Document 2') describes a technology regarding a "PB pipe connection socket device having a reinforcing member into which a nut is inserted into the inside of the socket."

The above prior art document 2 uses a first inclined surface portion and a second inclined surface portion to pressurize the outer surface of the pipe at two points with an inclined rubber ring and an oppositely inclined plastic connector.

In the above prior art document 1 or 2, the sealing force for preventing leakage of the fluid is provided through a sealing member such as an O-ring or a rubber ring. However, since such a sealing member is simply pressurized from the outer surface toward the center of the pipe, it may be insufficient for sealing high-pressure fluid. In addition, since the dimensions of the socket portion and the nut portion must be changed together according to the dimensions of the pipe, compatibility according to the pipe dimensions may be poor, and since three or more parts such as a reinforcing core, a rubber ring, and a plastic connector must be joined from the end of the pipe, the work may be cumbersome.

In particular, in a piping structure connected with PB pipes, vibrations are transmitted through the pipes from time to time, and as the pipes continue to shake, the joints of the pipes, rubber rings, plastic fittings, etc. may become loose.

Korean Patent No. 10-0588329: Joint pipe connecting a pressure reducing valve and a water meter in one piece Korean Patent No. 10-2159742: Pipe joint union

The present invention was created to solve the above problems, and its purpose is to provide a touch pipe connecting device that can maintain good durability against vibration transmitted through a socket or a pipe and is very easy to install and disassemble.

The present invention relates to a one-touch pipe connection device for interconnecting a first pipe and a second pipe, comprising: a covering installed to surround the first pipe on one side with the outer diameter expansion portion formed at a position spaced apart from an end connected to the second pipe by a predetermined distance; an O-ring configured to surround the first pipe on the other side with the outer diameter expansion portion as the center to prevent water leakage; a base socket connected to the covering on one side with the outer diameter expansion portion as the center so that an end can be supported, and having a first screw thread formed on an inner surface of an end side in a direction connected to the second pipe; an adapter portion inserted from an end of the first pipe and led into the inside of the base socket, the end being supported by the O-ring and the outer surface being supported by the inner surface of the base socket; a packing portion that surrounds the outer surface of the adapter portion and supports the end of the second pipe so that water does not leak between the adapter portion and the base socket when the second pipe is connected; An inclined sleeve portion arranged at the front end of the packing portion and installed to surround the outer diameter of the second pipe; and a pressurizing socket having an inner surface of the rear end in contact with an outer surface of the inclined sleeve portion, an outer surface having a second screw thread formed thereon so as to be screw-connected with a first screw thread of the base socket, and formed to be able to move a predetermined distance along the longitudinal direction of the base socket by the screw-connection of the first screw thread and the second screw thread, wherein when the pressurizing socket moves toward the base socket, the inclined sleeve portion is pressed against the outer surface of the second pipe by the pressurizing socket, so that the first pipe and the second pipe can be formed to maintain a connected state.

The above covering includes a cover pipe that extends to a predetermined length with an inner diameter corresponding to the outer diameter of the first pipe, and a flange portion formed at an end of the cover pipe and supported on the outer diameter expansion portion at the front, and having an outer diameter formed relatively larger than the cover pipe and forming a step at the boundary with the cover pipe, and the base socket includes a first socket portion formed to have an inner diameter relatively larger than the outer diameter expansion portion, and a second socket portion having an inner diameter relatively larger than the first socket portion and having the first screw thread formed on the inner circumference of the front end side, wherein a protrusion is formed at the rear end of the first socket portion so as to have an inner diameter corresponding to the outer diameter of the cover pipe and protruding toward the first pipe so as to be formed so as to restrain the base socket from being separated forward toward the second pipe side, and the adapter portion is formed to have an inner diameter corresponding to the outer diameter of the first pipe, and the outer diameter is formed so as to correspond to the inner diameter of the base socket so as to be fitted between the base socket and the first pipe. A cylindrical first adapter, and a second adapter extending from the front end of the first adapter by a predetermined length and capable of being inserted into the interior of a second pipe, wherein the second adapter has a draw-out prevention section formed such that the outer diameter gradually increases as it extends rearward from the front end and the outer surface is formed to be inclined, and it is preferable that two or more of the draw-out prevention sections are formed by being continuously arranged along the length direction of the second adapter.

The above base socket preferably includes a packing mounting portion formed in a curved shape whose outer diameter gradually increases from the first socket portion to the second socket portion on the inner side of the connecting point where the first socket portion and the second socket portion are connected, and the packing portion includes a first packing member formed of elastic rubber or synthetic resin, the lower edge of which is formed so as to be mounted on the packing mounting portion and the rear end into which the first adapter of the adapter portion can be inserted, a second packing member which extends forward from the front end of the first packing member by a predetermined length and the front end can be supported by the end of the withdrawal-restraining portion of the second adapter, and a third packing member which is formed so as to protrude along the outer edge of the front end of the first packing member by a predetermined length.

The above-described inclined sleeve portion includes a first sleeve having a rear end supported by a front end of a first packing member of the packing portion and an outer circumference supported by being in contact with an inner circumference of the third packing member, and a second sleeve having an inclined portion formed therein that extends forward from the front end of the first sleeve by a predetermined length but whose outer diameter gradually decreases as it extends forward, and a clamping portion formed on the inner circumference so as to protrude toward the outer circumference of the second pipe so as to pressurize the outer circumference of the second pipe, and it is preferable that the second sleeve has a plurality of cut portions formed so as to extend rearward from the front end of the second sleeve by a predetermined length so as to be spaced apart at a predetermined interval along the circumferential direction so that the clamping portion can grip the second pipe as the inner circumference retracts toward the second pipe by the pressurizing socket.

The above pressurizing socket includes a screw fastening portion having the second screw thread formed on the outer surface thereof, and a tool holding portion connected to a front end of the screw fastening portion and capable of rotating the screw fastening portion using a tool, and it is preferable that the inner surface of the screw fastening portion is formed to be inclined corresponding to the outer surface of the second sleeve of the inclined sleeve portion so that the inclined sleeve portion can be pressed or depressurized when the screw fastening portion moves forward or backward along the base socket.

The above packing portion may be formed with a plurality of inlet holes spaced apart from the outer surface of the second packing member by a predetermined interval along the circumferential direction, and the adapter portion may be formed with a guide groove extending a predetermined length along the circumferential direction and extending downward from a position where the inlet holes of the second packing member are formed on the outer surface of the second adapter, and a through hole penetrating the inner surface of the second adapter from an end of the guide groove, and when water flows between the second pipe and the adapter portion or the packing member, the internal pressure of the second adapter portion is lowered by the speed of the fluid passing through the interior of the second adapter, thereby preventing external leakage.

The above packing part has a guide protrusion formed protruding on the inner surface of the first packing part or the second packing part that comes into contact with the adapter part, and the adapter part may have a guide fixing groove formed into which the guide protrusion can be inserted so as to fix the mounting position of the packing part with respect to the adapter part so that the positions of the inlet hole and the guide groove correspond.

According to the one-touch pipe connection device of the present invention, pipes for water supply can be easily and firmly connected, and in particular, no water leakage occurs during the water supply process, and even when a flexible water supply pipe is installed by bending or twisting in a narrow space, stress is not applied to the connection part, so that a good connection state can be maintained.

Figure 1 is a perspective view of one embodiment of a one-touch pipe connecting device according to the present invention;
Figure 2 is an exploded perspective view of the one-touch pipe connecting device of Figure 1.
Fig. 3 is a cross-sectional view of the one-touch pipe connecting device of Fig. 1.
Fig. 4 is a partially cut perspective view of the base socket and adapter part of the one-touch pipe connecting device of Fig. 1.
Figure 5 is a partial cut perspective view of the packing portion, the inclined sleeve portion, and the pressurizing socket of Figure 1.
Fig. 6 is a partially cut perspective view of another embodiment of the adapter portion and the packing portion.
Fig. 7 is a cross-sectional view of a one-touch pipe connecting device including the adapter part and the packing part of Fig. 6.
Figure 8 is a drawing showing the process of connecting a first pipe and a second pipe by a one-touch pipe connecting device of the present invention.
Figure 9 is a cross-sectional view showing a state in which the second pipe is pressed against the adapter part by the pressurized socket.

Hereinafter, a one-touch pipe connecting device according to an embodiment of the present invention will be described in detail with reference to the attached drawings. The present invention can be modified in various ways and can have various forms, and specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific disclosed form, but should be understood to include all modifications, equivalents, or substitutes included in the spirit and technical scope of the present invention. In describing each drawing, similar reference numerals are used for similar components. In the attached drawings, the dimensions of structures are illustrated larger than actual dimensions in order to ensure clarity of the present invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

The terminology used in this application is only used to describe specific embodiments and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, it should be understood that the terms "comprises" or "has" and the like are intended to specify the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms defined in commonly used dictionaries, such as those defined in common dictionaries, should be interpreted as having a meaning consistent with the meaning they have in the context of the relevant art, and will not be interpreted in an idealized or overly formal sense unless expressly defined in this application.

Figures 1 to 5 illustrate one embodiment of a one-touch pipe connecting device (10) of the present invention.

Referring to the drawing, the one-touch pipe connection device (10) of the present embodiment is for connecting two pipes, that is, a first pipe (1) and a second pipe (3), and the first pipe (1) on which the one-touch pipe connection device (10) is installed is a pipe made of a metal material capable of forming an outer diameter expansion portion (2) at the end of the pipe, and the second pipe (3) may be made of various materials such as rubber, synthetic resin, or metal.

The above one-touch pipe connecting device (10) includes a covering (100), an O-ring (200), a base socket (300), an adapter part (400), a packing part (500), an inclined sleeve part (600), and a pressurizing socket (700).

The first pipe (1) has an outer diameter expansion portion (2) formed at an end of the pipe. With the outer diameter expansion portion (2) as a reference, the direction toward the second pipe (3) connected to the first pipe (1) is referred to as the front, and the opposite direction is referred to as the rear. Before forming the outer diameter expansion portion (2), the base socket (300) and the covering (100) can be first fitted to the first pipe (1), or if insertion is possible from the opposite side of the first pipe (1), after forming the outer diameter expansion portion (2), the covering (100) and the base socket (300) can be fitted from one end of the first pipe (1) and moved toward the outer diameter expansion portion (2).

The above covering (100) includes a cover pipe (110) and a flange portion (120) formed at an end of the cover pipe (110).

The above cover pipe (110) is a cylindrical member having an inner diameter corresponding to the outer diameter of the first pipe (1), and is formed to extend a predetermined length along the first pipe (1).

Since the flange portion (120) formed at the end of the cover pipe (110) has an outer diameter that is relatively larger than that of the cover pipe (110), a step is formed at the boundary between the flange portion (120) and the cover pipe (110).

The above O-ring (200) is installed to wrap the first pipe (1) on the front side of the first pipe (1) centered on the outer diameter expansion portion (2), is formed of rubber or elastic synthetic resin, and is installed to prevent water leakage.

The above base socket (300) includes a first socket portion (310) and a second socket portion (320).

The first socket portion (310) is a hollow body having an inner diameter that is relatively larger than that of the outer diameter extension portion (2), and a protrusion (311) is formed at the rear end thereof to protrude from the inner surface of the first socket portion (310) toward the cover tube (110) so as to correspond to the outer diameter of the cover tube (110). Accordingly, the protrusion (311) is caught on the step between the flange portion (120) and the cover tube (110), thereby restraining the base socket (300) from moving forward of the first pipe (1).

The above second socket portion (320) is formed to extend forward from the end of the first socket portion (310), and a first screw thread (321) for screw connection with a pressurized socket (700) described later is formed on the inner surface to extend a predetermined distance rearward from the front end.

In the case of the first socket portion (310), it is preferable that it be formed in a form that allows mounting of a fastening tool so that it can be rotated and moved in a direction adjacent to or away from each other by using a pressurized socket (700) and a fastening tool, which will be described later. In the case of this embodiment, the first socket portion (310) is formed in a hexagonal column shape so that a fastening tool such as a scanner can be mounted.

In addition, the base socket (300) has a packing mounting portion (322) formed on the inner surface of the connection portion where the first socket portion (310) and the second socket portion (320) are connected. The packing mounting portion (322) is provided for mounting the packing portion (500) described below, and is formed in a curved shape with an outer diameter that gradually increases as it progresses from the first socket portion (310) toward the second socket portion (320).

The above adapter part (400) includes a first adapter (410) and a second adapter (420).

The above first adapter (410) is formed to have an inner diameter corresponding to the outer diameter of the first pipe (1), and the outer diameter is formed to correspond to the inner diameter of the first socket part (310), so that it is fitted between the first pipe (1) and the first socket part (310).

A first packing support part (411) of a predetermined length is formed at the front end of the first adapter (410), and the first packing support part (411) is formed to have an outer diameter that is relatively smaller than the rear end corresponding to the inner diameter of the first socket part (310).

The above second adapter (420) is formed to extend forward from the front end of the first adapter (410) by a predetermined length.

A second packing support part (421) is formed in the second adapter (420) and extends a predetermined length from the first adapter (410). The second packing support part (421) is formed to have a relatively smaller outer diameter than the first packing support part (411).

A withdrawal suppression part (422) is formed at the front end of the second packing support part (421).

The above-mentioned withdrawal restraint portion (422) is provided to restrain withdrawal after the second pipe (3) is fastened so that the fastening state can be firmly maintained, and is formed so that the outer diameter gradually decreases as it extends from the rear end to the front. The above-mentioned withdrawal restraint portions (422) are arranged in three successive pieces along the longitudinal direction of the second adapter (420), but the size and length of the above-mentioned withdrawal restraint portions (422) and the number of pieces formed are not limited to the present embodiment.

The above packing part (500) is installed to surround the adapter part (400) inside the base socket, supports the end of the second pipe (3), and is provided to prevent leakage of the fluid being transported, and is formed of rubber or an elastic synthetic resin material as described above.

The packing part (500) includes a first packing member (510) formed to be able to be mounted on a packing mounting part (322) formed inside the base socket (300), a second packing member (520) extending a predetermined length from the front end of the first packing member (510), and a third packing member (530) formed to protrude from the front end edge of the first packing member (510).

As described above, the first packing member (510) is formed with a front end edge curved to correspond to the curved shape of the packing mounting portion (322) so that it can be mounted on the packing mounting portion (322). In addition, the rear end of the first packing member (510) is formed to be inserted forward from the rear end surface by a predetermined length so that the first packing support portion (411) of the first adapter (410) can enter.

The second packing member (520) is formed to extend forward from the front end of the first packing member (510) by a predetermined length as described above, and is configured to wrap around the first packing support member (411) of the second adapter (420). The front end of the second packing member (520) can extend to the point where the withdrawal inhibiting member (422) of the second adapter (420) begins.

The above third packing member (530) is formed along the front edge of the first packing member (510) and protrudes forward by a predetermined length.

FIGS. 6 and 7 illustrate other embodiments of the adapter portion (400) and the packing portion (500).

In the present embodiment, the adapter part (400) and the packing part (500) are formed with an inflow hole (540), a guide groove (430), and a through hole (440) to allow the fluid to flow back into the inside of the adapter part (400) so as to prevent the fluid transferred from the second pipe (3) from flowing out and leaking to the outside after the second pipe (3) is connected.

The packing part (500) has a plurality of inlet holes (540) formed at a predetermined interval along the circumferential direction, penetrating from the outer surface to the inner surface of the second packing member (520), so that fluid leaking around the packing part (500) can flow back into the inner surface of the packing part (500).

In addition, the adapter part (400) has a guide groove (430) that extends a predetermined length along the circumferential direction and is introduced downward from a position where the inlet hole (540) of the second packing member (520) is formed on the outer surface of the second adapter (420), and a through hole (440) that penetrates the inner surface of the second adapter (420) at the end of the guide groove (430).

Accordingly, when water flows in between the second pipe (3) and the adapter part (400) or packing part (500), the internal pressure of the second adapter (420) part (400) is lowered by the speed of the fluid passing through the inside of the second adapter (420), so that the water flowing in through the inflow hole (540) of the packing part (500) moves to the inside of the second adapter (420) part (400), thereby preventing external leakage.

In addition, since it is configured to move along the guide groove (430) between the inlet hole (540) and the through hole (440), the fluid can be prevented from leaking from the inside of the adapter part (400) to the outside of the packing part (500) through the through hole (440).

In addition, since the start positions of the inlet hole (540) of the packing part (500) and the guide groove (430) of the adapter part (400) must be matched when fastened, a guide protrusion (550) is formed protruding on the inner surface of the first packing member (510) that comes into contact with the adapter part (400) in order to guide the fastening position of the packing part (500) and the adapter part (400), and a guide fixing groove (450) is formed in the adapter part (400) into which the guide protrusion (550) can be inserted so as to fix the mounting position of the packing part (500) with respect to the adapter part (400) so that the positions of the inlet hole (540) and the guide groove (430) correspond.

Referring again to FIGS. 1 to 5, the inclined sleeve portion (600) includes a first sleeve (610) supported on the front end of the first packing member (510) and a second sleeve (620) extending from the front end of the first sleeve (610).

The rear end of the first sleeve (610) is supported by the front end of the first packing member (510) of the packing portion (500), and the outer surface is supported by contacting the inner surface of the third packing member (530).

The second sleeve (620) is extended forward from the front end of the first sleeve (610) by a predetermined length, and has an inclined portion formed so that the outer diameter gradually decreases as it extends forward, and a clamping portion (621) is formed on the inner surface thereof so as to protrude toward the outer surface of the second pipe (3) so as to pressurize the outer surface of the second pipe (3).

The second sleeve (620) is bent toward the second pipe (3) as the pressurized socket (700) described later advances rearward. At this time, the clamping portion (621) grips the second pipe (3), and a plurality of cut portions (623) are formed to extend a predetermined length from the front end of the second sleeve (620) toward the rear so that the second sleeve (620) can be bent well.

It is preferable that the above-mentioned cut portions (623) are arranged in multiple numbers spaced apart from each other along the circumference of the second sleeve (620).

The above pressurized socket (700) includes a screw fastening portion (710) having the second screw thread (711) formed on the outer surface thereof, and a tool holding portion (720) connected to the front end of the screw fastening portion (710) and configured to rotate the screw fastening portion (710) using a tool.

The inner surface of the screw fastening portion (710) is formed to be inclined in correspondence with the outer surface of the second sleeve (620) of the inclined sleeve portion (600), so that the inclined sleeve portion (600) can be pressed or depressurized when the screw fastening portion (710) moves forward or backward along the base socket (300).

The process of interconnecting two pipes using the one-touch pipe connecting device (10) of the present invention described above is described with reference to FIG. 8.

As shown in Fig. 8a, with an outer diameter expansion portion (2) formed at the end of the first pipe (1), a covering (100) is first positioned on one side of the outer diameter expansion portion (2), and an O-ring (200) is mounted on the other side, that is, the front of the first pipe (1). Thereafter, a base socket (300) is positioned so as to be caught on the covering (100).

Referring to Fig. 8b, an adapter part (400) is installed so as to be fitted into the end of the first pipe (1) from the front of the base socket (300). Then, a packing part (500) is mounted so as to be fitted into the packing fixing part (322) of the base socket (300) and the first packing support part (411) and the second packing support part (421) of the adapter part (400). After the installation of the packing part (500) is completed, an inclined sleeve part (600) is installed so as to be supported by the front end of the packing part (500).

Referring to Fig. 8c, after installing the inclined sleeve portion (600), the pressurizing socket (700) is fastened to the front of the base socket (300). The configuration of the device is completed by screwing the second screw thread (711) of the pressurizing socket (700) into the first screw thread (321) of the base socket (300).

Thereafter, the second pipe (3) to be connected to the first pipe (1) is introduced into the inside by passing through the pressurizing socket (700) from the front of the pressurizing socket (700). At this time, the second pipe (3) is positioned so that its inner surface surrounds the outer surface of the adapter part (400), more specifically, the outer surface of the second adapter (420), and its outer surface is positioned on the inner side of the inclined sleeve part (600).

As shown in Fig. 9, before the pressurizing socket (700) is fastened, the second pipe (3) is not completely attached to the adapter part (400), but when the pressurizing socket (700) is rotated and moved in the direction toward the base socket (300), the second sleeve (620) of the inclined sleeve part (600) is bent inward by the inclined surface of the pressurizing socket (700), thereby pressurizing the outer surface of the second pipe (3).

Accordingly, the inner surface of the second pipe (3) is tightly fastened to the outer surface of the adapter part (400), and in particular, the second pipe (3) is prevented from being pulled out toward the front of the pressurized socket (700) by the pull-out inhibiting part (422) and the clamping part (621) of the adapter part (400).

The one-touch pipe connection device (10) according to the present invention described above can connect two pipes for transporting a fluid, and when the pressurized socket (700) is in an open state, the second pipe (3) is inserted and then the pressurized socket (700) is moved toward the base socket (300) by performing screw fastening so that the connection is immediately made, so that the pipes can be easily connected.

In addition, since the pipe is firmly maintained after the pipe is fastened, the risk of fluid leakage due to separation of the fastening portion is low, and even if fluid leaks between the pipe and the adapter part (400), the fluid can flow back into the adapter part (400), thus minimizing the risk of fluid leakage.

The description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the disclosed invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the disclosed invention. Thus, the disclosed invention is not intended to be limited to the disclosed embodiments, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

1: 1st pipe 2: Outer diameter expansion 3: 2nd pipe
10: One-touch pipe connector
100: Covering
110: Cover tube 120: Flange part
200: O-ring
300: Base socket
310: First socket part 311: Protrusion part
320: Second socket part 321: First screw thread
322: Packing anchorage
400: Adapter section
410: First adapter 411: First packing support
420: Second adapter 421: Second packing support
422: Withdrawal suppression unit 430: Guide home
440: Through hole 450: Guide fixing groove
500: Packing section
510: First packing member 520: Second packing member
530: Third packing member 540: Inlet hole
550: Guide protrusion
600: Slope sleeve
610: 1st sleeve 620: 2nd sleeve
621: Clamping section 623: Cutting section
700: Pressurized socket
710: Screw connection part 711: Second screw thread
720: Tool holder

Claims (7)

In a one-touch pipe connecting device for interconnecting a first pipe and a second pipe,
On one side of the first pipe, an outer diameter expansion portion with an expanded outer diameter is formed at a position spaced a predetermined distance from the end connected to the second pipe,
A covering installed to wrap the first pipe on one side centered on the above outer diameter expansion portion;
An O-ring to prevent leakage by wrapping the first pipe on the other side centered on the above outer diameter expansion portion;
A base socket which is fastened so that one end can be supported by the covering on one side centered on the above outer diameter expansion portion, and has a first screw thread formed on the inner surface of the end side in the direction of connection with the second pipe;
An adapter portion inserted from the end of the first pipe and introduced into the inside of the base socket, the end of which is supported by the O-ring and the outer surface thereof is supported by the inner surface of the base socket;
A packing part that surrounds the outer surface of the adapter part and supports the end of the second pipe to prevent water from leaking between the adapter part and the base socket when the second pipe is connected;
An inclined sleeve portion arranged at the front end of the above packing portion and installed to wrap around the outer diameter of the second pipe;
The inner surface of the rear end is in contact with the outer surface of the inclined sleeve, and the outer surface has a second screw thread formed so as to be screw-connected with the first screw thread of the base socket, and includes a pressurizing socket formed so as to be able to move a predetermined distance along the length direction of the base socket by the screw connection of the first screw thread and the second screw thread.
When the above pressurized socket moves toward the base socket, the inclined sleeve portion is pressed against the outer surface of the second pipe by the above pressurized socket, thereby forming the first pipe and the second pipe so that they can maintain a connected state.
The above covering includes a cover pipe that extends to a predetermined length with an inner diameter corresponding to the outer diameter of the first pipe, and a flange portion formed at an end of the cover pipe and supported on the front by the outer diameter expansion portion, and having an outer diameter formed relatively larger than the cover pipe so that a step is formed at the boundary with the cover pipe.
The above base socket includes a first socket portion formed to have an inner diameter relatively larger than the outer diameter expansion portion, and a second socket portion having an inner diameter relatively larger than the first socket portion and having the first screw thread formed on the inner surface of the front end side.
The rear end of the first socket portion is formed with a protrusion that protrudes toward the first pipe so as to have an inner diameter corresponding to the outer diameter of the cover pipe, thereby preventing the base socket from moving forward toward the second pipe.
The above adapter part
A cylindrical first adapter formed to have an inner diameter corresponding to the outer diameter of the first pipe and formed so that the outer diameter corresponds to the inner diameter of the base socket so that it can be fitted between the base socket and the first pipe, and a second adapter extended from the front end of the first adapter by a predetermined length and capable of being inserted into the interior of the second pipe,
The second adapter is formed with a pull-out prevention section whose outer diameter gradually expands as it extends rearward from the front end and whose outer surface is formed to be inclined, and two or more of the pull-out prevention sections are arranged continuously along the length direction of the second adapter.
The above base socket has a packing mounting portion formed in a curved shape with an outer diameter that gradually increases from the first socket portion to the second socket portion on the inner side of the connection point where the first socket portion and the second socket portion are connected.
The above packing part
A first packing member formed of elastic rubber or synthetic resin, the lower edge of which is formed so as to be seated in the packing mounting portion, and the rear end into which the first adapter of the adapter portion can be inserted;
A second packing member extending forward from the front end of the first packing member by a predetermined length, but having the front end supported by the withdrawal-restraining end of the second adapter,
It includes a third packing member formed to protrude a predetermined length along the outer edge of the front end of the first packing member,
The above-mentioned inclined sleeve part
A first sleeve whose rear end is supported by the front end of the first packing member of the packing section and whose outer surface is supported by being in contact with the inner surface of the third packing member;
A second sleeve is included, which extends forward from the front end of the first sleeve by a predetermined length, has an inclined portion formed so that the outer diameter gradually decreases as it extends forward, and has a clamping portion formed on the inner surface thereof that protrudes toward the outer surface of the second pipe so as to pressurize the outer surface of the second pipe.
The second sleeve is formed with a plurality of cut portions extending from the front end of the second sleeve to the rear by a predetermined length so that the inner surface thereof is compressed toward the second pipe by the pressurizing socket and the clamping portion can grip the second pipe at a predetermined interval along the circumferential direction.
The above pressurized socket
It includes a screw fastening part having the second screw thread formed on the outer surface, and a tool holding part connected to the front end of the screw fastening part and capable of rotating the screw fastening part using a tool.
The inner surface of the screw fastening portion is formed to be inclined in correspondence with the outer surface of the second sleeve of the inclined sleeve portion, so that the inclined sleeve portion can be pressed or depressurized when the screw fastening portion moves forward or backward along the base socket.
The above packing member is formed with a plurality of inlet holes that penetrate the inner surface from the outer surface of the second packing member and are spaced apart at a predetermined interval along the circumferential direction.
The above adapter part has a guide groove extending a predetermined length along the circumference direction and extending downward from a position where an inlet hole for the second packing member is formed on the outer surface of the second adapter, and a through hole formed at an end of the guide groove that penetrates the inner surface of the second adapter.
When water flows in between the second pipe and the adapter part or packing member, the internal pressure of the second adapter part is lowered by the speed of the fluid passing through the inside of the second adapter, so that the water flowing in through the inlet hole of the packing part moves to the inside of the second adapter part, thereby preventing external leakage.
One-touch pipe connector. delete delete delete delete delete In claim 1,
The above packing part has a guide projection formed protruding on the inner surface of the first packing part or the second packing part that comes into contact with the adapter part,
The adapter part is characterized in that a guide fixing groove is formed in which the guide protrusion can be inserted so as to fix the mounting position of the packing part to the adapter part so that the positions of the inlet hole and the guide groove correspond.
One-touch pipe connector.

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