JP2014206269A - Pipe connection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection device capable of facilitating assembly and reducing working man hour.SOLUTION: A connection device includes a pipe connection port 210 into which a plurality of pipes are inserted, and a pipe holding unit provided within the pipe connection port 210 and holding a pipe having been inserted into the pipe connection port 210. The pipe connection port 210 is formed so that a body portion is made having an opening into which a pipe is inserted, and a step portion is made where tube expansion is radially carried out from an inner pillar face of the body portion, and includes an accommodation home part in which a pipe holding unit 220 is accommodated.

Description

The present invention relates to a pipe connecting device, and more particularly to a pipe connecting device that interconnects a plurality of pipes.

In general, the pipe connecting device is used as a means for interconnecting piping pipes used for supplying water supply or gas in places such as homes and shops.

The pipe connecting device is used in various shapes such as a straight shape, an elbow shape, a T shape, and a cross shape depending on its structural form.

In particular, it is recognized that airtightness and connectivity are the most important factors when interconnecting pipes through which fluid flows.

The conventional pipe connection device welds the pipe connection part or uses a screw connection in order to improve the airtightness and the connection. However, a strong tightening force is required at the time of connection, and a separate tool is required. There was a problem that the number of working man-hours increased.

Recently, in order to solve the above-mentioned problems, products that can be connected to or separated from the pipe connecting device by a one-touch method have been sold.

Korea Registered Patent No. 10-0493329 (Joint Co., Ltd.) 2005.05.25. Korea Registered Patent No. 10-1023943 (Joint Co., Ltd.) 2011.03.15.

Korean Patent No. 10-0493329 discloses a pipe connecting device using a snap ring.

The Korean Patent No. 10-0493329 uses a separate fixing means such as a snap ring (50), but a separate tool is required to attach the snap ring (50) to the pipe connecting device. This is necessary and the work is difficult and troublesome, which increases the number of working steps and increases the production cost.

In addition, as shown in FIG. 1, the pipe connecting device disclosed in Korean Patent No. 10-0493329 has a stopper (111) having an inclined surface (112) on the inner column surface of the pipe connecting port (110). After forming the seating home (123) having the hook projection (122) on the outer pillar surface of the jaw holder (120), the jaw holder (120) is inserted into the pipe connection port (110) and the hook projection (122) Is moved along the inclined surface (112) so that the topper (111) is inserted into the seating home (123), and the pipe connection port (110) and the jaw holder (120) are connected to each other.

In this way, Korean Patent No. 10-0493329 forms a stopper (111) having an inclined surface (112) on the inner column surface of the pipe connection port (110) and is hooked on the outer column surface of the jaw holder (120). Since it is necessary to provide an arrival home (123) having (122), there is a problem that the production time and production cost are increased to produce the complicated pipe connection port (110) and the jaw holder (120). .

In addition, when a large tension is applied to the pipe due to water pressure, vibration, temperature change, etc., the stopper (111) or the hook projection (122) is easily damaged by the tension acting on the pipe, and the pipe connection port (110) is easily damaged. There is a problem that it is difficult to expect the reliability of maintaining confidentiality because the jaw holder (120) may be released and gas, water supply, etc. may flow out.

Therefore, the technical problem to be solved by the present invention is to provide a pipe connecting device that can be easily constructed, can reduce production time and production cost, and can ensure reliability of confidentiality maintenance. .

According to one aspect of the present invention, a pipe connection port into which a plurality of pipes are inserted; and a pipe gripping unit provided inside the pipe connection port for gripping the pipe inserted into the pipe connection port, The pipe connection port is formed so as to have a step by being expanded in the radial direction of the main body from the main body portion including the opening into which the pipe is inserted; and the pillar surface in the main body, and accommodates the pipe gripping unit. A pipe coupling device including a storage home portion can be provided.

The bottom surface of the storage home portion is formed by being expanded in the radial direction of the main body portion from the inner pillar surface of the main body portion so that the pipe gripping unit is seated, and one side wall of the storage home portion is formed by the pipe gripping unit. The other side wall of the storage home portion is formed from the inner column surface of the main body portion to the main body portion, so as to be in close contact with the side portion of the main body portion. It is formed so that there is a step in the radial direction.

The pipe connection port is formed so as to be stepped by expanding from the column surface in the main body portion in the radial direction of the main body portion, and when the pipe is inserted into the main body portion, a catching hill to which one end portion of the pipe is closely attached The storage home portion is continuously expanded from the catching hill in the radial direction outside the main body so as to form a step.

The pipe gripping unit is inserted into the storage home portion, but is stored in the storage home portion; a pipe gripping module that grips an outer column surface of the pipe inserted through and fixed to the pipe connection port; May include a sealing module that resiliently supports the pipe gripping module and maintains sealing.

The pipe gripping module includes a hollow-shaped casing portion housed in the housing home portion; and an inside of the casing portion so that the pipe is inserted through, and is connected to an outer column surface of the pipe. A pipe gripping portion for fixing the pipe, the pipe gripping portion having a plurality of wedges hooked on the outer column surface of the pipe and fixing the pipe to the pipe connection port; and the pipe is inserted through As described above, a hook holder portion is provided which is provided inside the casing portion and has a plurality of hook seating holes formed on the outer column surface in which the hook is inserted and seated.

A horizontal portion in a direction in which the pipe is inserted and an inclined portion that is continuously inclined downward from the horizontal portion in the radial direction of the main body portion are formed on the inner column surface of the casing portion. Is inserted into the hook holder portion, the hook is caught by the outer surface of the pipe and can move back and forth between the horizontal portion and the inclined portion together with the hook holder portion.

The pipe gripping module is provided on one side of the hook holder part and further includes an elastic member that elastically supports the hook holder part. When the pipe is inserted into the hook holder part, the elastic member is compressed. The hook is moved from the horizontal portion to the inclined portion, and when the pipe is completely inserted into the hook holder portion, the elastic member is expanded and the hook is moved from the inclined portion to the horizontal portion. I can do it.

When the hook is moved from the horizontal portion to the inclined portion, the virtual line connecting the ends of the plurality of wedges is arranged to be horizontal, and the hook moves from the horizontal portion to the inclined portion. In this case, an imaginary line connecting the ends of the plurality of wedges can be arranged so as to be inclined downward toward the center of the main body.

The pipe gripping module is provided on one side of the casing part, and further includes an elastic member support part that supports the elastic member. The elastic member has one end connected to the elastic member support part and the other end connected to the elastic member support part. The hook holder is connected to the hook holder and can elastically support the hook holder.

The elastic member may be a coil spring or a wave spring through which the pipe is inserted.

The sealing module may include a sealing member through which the pipe is inserted, connected to the pipe gripping module, elastically supporting the pipe gripping module, and maintaining sealing.

The sealing member may be an elastic O-ring through which the pipe is inserted.

The sealing module may further include a sealing member support portion that is inserted through the pipe, one side is connected to one side wall of the storage home portion, the other side is connected to the sealing member, and supports the sealing member.

The sealing module may be disposed on both sides of the pipe gripping module so that the pipe is inserted therethrough, elastically supports the pipe gripping module, and maintains the sealing.

The embodiment of the present invention includes a storage home portion for storing the pipe gripping unit on the pillar surface in the main body portion of the pipe connection port, so that the assembly of the pipe connection port and the pipe gripping unit can be facilitated and the work man-hours can be reduced. In addition, by connecting the pipe connection port and the pipe gripping unit, it is not necessary to use a separate fixing means, so the production time and production cost can be reduced, and the pipe connection port and the pipe gripping unit can be saved. The connection can be made strong and the reliability of maintaining confidentiality can be secured.

Sectional drawing showing the pipe connection apparatus by a prior art. The perspective view showing the pipe connection device by one example of the present invention. The exploded perspective view showing the pipe connection device by one example of the present invention. Sectional drawing showing the pipe connection apparatus by one Example of this invention. The operation state figure showing operation of a pipe grasping module by one example of the present invention. The operation state figure showing operation of a pipe grasping module by one example of the present invention. The operation state figure showing operation of the sealing module by one example of the present invention. The operation state figure showing operation of the sealing module by one example of the present invention.

For a full understanding of the invention, its operational advantages, and the objectives achieved by the practice of the invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the invention and the contents described in the accompanying drawings. I must.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals provided in the respective drawings indicate the same members. 2 is a perspective view illustrating a pipe connecting device according to an embodiment of the present invention, FIG. 3 is an exploded perspective view illustrating a pipe connecting device according to an embodiment of the present invention, and FIG. 4 is a pipe according to an embodiment of the present invention. FIG. 5 and FIG. 6 are operation state diagrams illustrating the operation of the pipe gripping module according to an embodiment of the present invention, and FIGS. 7 and 8 illustrate the operation of the sealing module according to an embodiment of the present invention. It is an operation state diagram.

Referring to FIGS. 2 to 8, a pipe connection device 200 according to an embodiment of the present invention includes a pipe connection port 210 into which a plurality of pipes P are inserted, and an interior of the pipe connection port 210. And a pipe gripping unit (220) for gripping the pipe (P) inserted into the pipe connection port (210).

The pipe connecting device (200) according to the present embodiment uses a pipe gripping unit (220) provided inside the pipe connecting port (210) by inserting a plurality of pipes (P) into the pipe connecting port (210). In other words, the plurality of pipes (P) are connected so that they can communicate with each other by grasping the pipe (P) inserted into the pipe connection port (210).

Referring to FIGS. 2 to 4, in this embodiment, the pipe connection port 210 is manufactured of a metal or a synthetic resin material so as to provide an axial force and reduce vibration.

The pipe connection port 210 is formed in a hollow shape and is used in various shapes such as a straight shape, an elbow shape, a T shape, and a cross shape.

The pipe connection port (210) includes a main body (211) having an opening (212) into which the pipe (P) is inserted, and a radial direction of the main body (211) from the inner pillar surface of the main body (211). A catching hill (213) in which one end of the pipe (P) is in close contact with the pipe (P) when the pipe (P) is inserted into the main body (211), and the inside of the main body (211). It includes a storage home portion (215) that is formed so as to have a step by being expanded in the radial direction of the main body portion (211) from the column surface, and in which the pipe gripping unit (220) is stored.

The pipe coupling device (200) according to the present embodiment assembles the pipe coupling port (210) and the pipe gripping unit (220) by storing the pipe gripping unit in the storage home portion provided in the pipe coupling port (210). Can be easily done, and the work man-hours by the combination can be reduced.

Further, the pipe connection port (210) and the gripping unit (220) can be easily combined and coupled without using a separate fixing means such as a snap ring, thereby reducing the production time and cost of the gripping unit (220). I can do it.

The main body (211) is made of a metal or a synthetic resin material, is formed in a hollow shape, and is produced in various shapes such as a straight shape, an elbow shape, a T shape, and a cross shape.

And the catching hill (213) with which the one end part of the inserted pipe (P) is closely_contact | adhered is formed in the inner pillar surface of a main-body part (211). The pipe (P) inserted into the main body (211) is in close contact with the catching hill (213), and the moving range of the pipe (P) is limited by the catching hill (213).

Here, the catching hill (213) is formed so as to have a step by being expanded in the radial direction of the main body (211) from the center of the main body (211). The catching hill (213) is expanded to the same size as the outer diameter of the pipe (P).

A storage home portion (215), which is a space in which the pipe gripping unit (220) is stored, is formed on the inner pillar surface of the main body portion (211).

The storage home portion (215) is continuously expanded from the catching hill (213) in the radial direction of the main body portion (211) so as to form a step. That is, the catching hill (213) and the storage home part (215) are successively formed continuously from the central part of the main body part (211) to the end part on the opening part (212) side.

The bottom surface (216) of the storage home portion (215) is formed by being expanded in the radial direction of the main body portion (211) from the inner column surface of the main body portion (211) so that the pipe gripping unit (220) is seated. The length of the bottom surface (216) of the storage home portion (215) is set to be long enough to accommodate the pipe gripping unit (220).

And the one side wall (217) of the storage home part (215) is attached to the side part of the pipe gripping unit (220) from the opening (212) side end part of the main body part (211) to the main body part (211). It is formed by cutting in the center direction.

Here, one side wall (217) of the storage home portion (215) is a side portion of the pipe gripping unit (220) after the pipe gripping unit (220) is seated on the bottom surface (216) of the storage home portion (215). The opening (212) side end portion of the main body portion (211) is bent toward the center of the main body portion (211) so as to pressurize the main body portion (211).

The other side wall (218) of the storage home portion (215) is formed so that a step is formed in the radial direction of the main body portion (211) from the inner pillar surface of the main body portion (211). That is, the wall part which made the level | step difference continuously from the catching hill (213) corresponds to the other side wall (218) of the storage home part (215).

As described above, after expanding the main body (211) of the pipe connection port (210) in the radial direction of the main body (211) to seat the pipe gripping unit (220), the opening of the main body (211) (212) A storage home portion (215) into which the pipe gripping unit (220) can be inserted by bending the side end portion toward the center of the main body portion (211) to form a pipe connection port (210) and the pipe gripping unit (220) can be easily combined, and the work man-hours and production costs due to the combination can be reduced.

Meanwhile, the pipe gripping unit (220) according to the present embodiment serves to grip the pipe (P) into which the pipe connection port (210) is inserted.

Referring to FIGS. 2 and 4, the pipe gripping unit (220) is housed in the housing home part (215), grips the outer pillar surface of the paop (P) inserted through, and is fixed to the pipe connection port (210). And a sealing module (281, 285) that elastically supports the pipe gripping module (230) while being stored in the storage home portion (215) and maintains sealing.

In this embodiment, the pipe gripping unit (220) is manufactured as a single unit and can be inserted and stored in the storage home part (215). However, the present invention is not limited to this, and each component constituting the pipe gripping unit (220). Can be sequentially inserted and stored in the storage home portion (215).

In this embodiment, the pipe gripping module (230) directly grips the outer pillar surface of the pipe (P) inserted into the pipe connection port (210) and fixes the inserted pipe (P) to the pipe connection port. In charge.

The pipe gripping module (230) is provided inside the casing part (240) so that the hollow-shaped casing part (240) inserted into the storage home part (215) and the pipe (P) are inserted therethrough. A pipe gripping part (250) for connecting the outer pillar surface of (P) to fix the pipe (P), and an elastic member provided on one side of the pipe gripping part (250) for elastically supporting the pipe gripping part (250) (260) and an elastic member support part (270) provided on one side of the casing part (240) and supporting the elastic member (260).

The casing part (240) takes charge of the role of accommodating and storing the storage home part (215) and supporting the pipe gripping part (250).

The casing part (240) is made of metal or synthetic resin, is formed in a hollow shape so that the pipe gripping part (250) can be inserted therein, and supports the outer column surface of the pipe gripping part (250) inserted therein. To do.

The pipe gripping part (250) is connected to the outer column surface of the pipe (P) inserted into the pipe connection port (210), and is responsible for fixing the pipe (P) to the pipe connection port (210). .

The pipe gripping part (250) includes a plurality of wedges (257) that are hooked on the outer column surface of the pipe (P), and a hook (hook, 255) that fixes the pipe (P) to the pipe connection port (210). A plurality of hook attachment holes (252) are formed on the outer column surface so that the pipes (P) are inserted into the casing part (240) so that the pipes (P) can be inserted therethrough. Includes a hook holder part (251).

The fork (255) is made of a metal material, and is formed horizontally on a plate-shaped body (256), and is formed on one surface of the body (256) so as to be inclined in a direction in which the pipe (P) is inserted. It includes a plurality of wedges (257) arranged.

Here, the plurality of wedges (257) are arranged so that the imaginary line connecting the ends of the plurality of wedges (257) has an inclined inclination, that is, the wedges arranged in contact with the center of the pipe connection port (210) ( 257) is gradually increased.

In the present embodiment, a plurality of the hooks (255) are separated from each other by a predetermined distance on the outer pillar surface of the hook holder part (251). That is, the plurality of hooks (255) are arranged at equal intervals along the outer column surface of the pipe (P), and the plurality of wedges (257) provided in each of the hooks (255) are the outer columns of the pipe (P). The pipe (P) is prevented from being deviated from the pipe connection port (210) by being caught on the surface.

The plurality of hooks (255) described above are seated on the hook holder part (251), and the hook holder part (251) is made of metal or synthetic resin and is provided inside the casing part (240) to be provided with the hook (255). Responsible for supporting the role.

A hook seat hole (252) is provided on the outer column surface of the hook holder portion (251) so that the hook (255) is inserted and seated.

Explaining the coupling of the hook holder (251) and the hook (255), a plurality of wedges (257) are inserted into the hook seating hole (252) so as to contact the outer column surface of the pipe (P), and the body ( 256) are arranged so as to be caught in the hook seating hole (252). Then, the body (256) contacts the inner column surface of the casing part (240) and is moved together according to the movement of the pipe (P) inserted into the hook holder part (251).

In addition, the horizontal portion (241) is inserted in the direction in which the pipe (P) is inserted into the inner column surface of the casing portion (240), and the horizontal portion (241) is continuously directed downward in the radial direction of the main body portion (211). An inclined portion (243) that is inclined is formed.

Therefore, when the pipe (P) is inserted through the hook holder part (251), the plurality of wedges (257) are caught by the outer pillar surface of the pipe (P). The body (256) of (255) reciprocates in contact with the horizontal portion (241) and the inclined portion (243) formed on the inner column surface of the casing portion (24).

In this example, an elastic member (260) that elastically supports the hook holder (251) is provided so that the hook (255) and the hook holder (251) can reciprocate.

The elastic member (260) in this embodiment is preferably a coil sporing or a wave spring through which the pipe (P) is inserted.

When the elastic member (260) moves in the direction in which the pipe (P) is inserted into one side of the hook holder part (251), in particular, the pipe (P) is inserted into the hook holder part (251), the elastic member (260) (251) compresses the elastic member (260), and the body (256) of the hook (255) is in close contact with the inner column surface of the casing (240) and is transmitted to the inclined portion (243) by the horizontal portion (241). Moved to.

Further, as shown in FIG. 6, when the pipe (P) is completely inserted into the hook holder (251) (for example, when one end of the pipe (P) is caught on the catching hill (213)), it is elastic. The member (260) is expanded to move the hook holder (251) in the direction opposite to the insertion direction of the pipe (P), and the body (256) of the hook (255) is in close contact with the inner column surface of the casing (240). In this state, the inclined part (243) is moved to the horizontal part (241).

As described above, the reciprocating motion of the hook holder part (251) and the hook (255) is inserted into the pipe (P) because the hook (255) is caught by the outer column surface of the pipe (P) and moves together. .

Then, as shown in FIG. 5, when the pipe (P) is inserted into the hook holder (251), the ends of a plurality of wedges (257) hooked on the outer column surface are connected to the pipe (P). The virtual lines are arranged so as to be horizontal. This is to ensure that the pipe (P) is inserted smoothly.

Further, as shown in FIG. 6, when the insertion of the pipe (P) is completed, the hook (255) hooked on the outer column surface of the pipe (P) by the elastic member (260) is inclined (243). The imaginary line connecting the ends of the plurality of wedges (257) is arranged so as to be inclined downward toward the center of the main body (211). In order to change the arrangement of the plurality of wedges (257), a horizontal part (241) and an inclined part (243) are formed on the inner pillar surface of the casing part (240).

The elastic member support part (270) is provided on one side of the casing part (240) and is responsible for supporting the elastic member (260).

The elastic member support part (270) is provided to face one side of the casing part (240), particularly in the insertion direction of the pipe (P). Further, the elastic member support part (270) is provided between the casing part (240) and the sealing module (285).

Therefore, one end of the elastic member (260) is connected to the elastic member supporting portion (270), and the other step portion is connected to the hook holder portion (251) so that the elastic member (260) elastically supports the hook member portion. To do.

Further, the elastic member support part (270) is in close contact with one side of the casing part (240), and when the pipe (P) is inserted and the hook holder part (251) moves in the horizontal direction, the hook holder part (251). Is arranged so as to be in close contact with the elastic member support portion (270). Accordingly, the elastic member support part (270) is also responsible for limiting the horizontal movement of the hook holder part (251).

In addition, in this embodiment, the sealing module (281, 285) elastically supports the pipe gripping module (230) stored in the storage home portion and prevents gas, water supply, etc. from flowing out through the pipe connection port (210). Responsible for the role.

Referring to FIG. 4, the sealing module (281, 285) has a pipe (P) inserted therethrough and is connected to the pipe gripping module (230) to elastically support the pipe gripping module (230) to maintain the sealing. The member (282, 286) and the pipe (P) are inserted through, but one side is connected to one side wall (217, 218) of the storage home part and connected to the other side sealing member (282, 286). Sealing member support portions (283, 287) for supporting the members (282, 286) are included.

The sealing members (282, 286) are formed in such a shape that the pipe (P) can be inserted therethrough, and the synthetic resin is formed of an O-ring made of an elastic material such as rubber so that the pipe holding module (230) can be elastically supported.

Sealing members (282, 286) maintain sealing of the pipe connection port (210) and provide elasticity to the pipe gripping module (230).

The sealing member support portions (283, 287) are made of a metal and a synthetic resin material, and are formed so that the pipe (P) is inserted therethrough.

The sealing member support portions (283, 287) prevent the sealing members (282, 286) from being removed from the storage home portion (215), and strengthen the sealing of the pipe connection port (210). ) On one side wall (217, 218).

As shown in FIG. 4, the sealing modules (281, 285) are disposed on both sides of the pipe gripping module (230) in the present embodiment. That is, the sealing modules (281, 285) are disposed so as to be in close contact with both side walls (217, 218) of the storage home portion (215), and the pipe gripping module (230) is disposed between the two sealing modules (281, 285). ).

As shown in FIG. 4, the sealing module (281, 285) is connected to the first sealing module (281) attracted to the opening (212) side of the pipe connection port (210) and the center side of the pipe connection port (210). It can be constituted by the second sealing module (285) in contact.

At this time, the first sealing module (281) is disposed such that the sealing member support portion (283) is in close contact with one side wall (217) of the storage home portion (215), and the sealing member (282) is the casing portion (240). ) And the sealing member support portion (283).

The second sealing module (285) is disposed so as to be in close contact with the other side wall (218) of the sealing member support portion (287) gas storage home portion (215), and the sealing member (286) is elastic member support portion ( 270) and the sealing member support portion (287).

As described above, when the sealing modules (281, 285) are arranged on both sides of the pipe gripping module (230), the operation of the sealing modules (281, 285) is as follows.

As shown in FIG. 7, when a tension is applied to the pipe (P) due to water pressure, vibration, etc., and the pipe (P) moves outside the pipe connection port (210), the pipe gripping combined with the pipe (P) is held. The module (230) is also moved together, and the casing part (240) presses the sealing member (282) of the first sealing module (281). At this time, the sealing member (282) of the first sealing module (281) resists tension and absorbs the impact caused by the movement of the pipe (P) to ensure the reliability of maintaining the confidentiality of the pipe connection port (210). I can do it.

On the other hand, as shown in FIG. 8, the pipe (P) moved to the outside of the pipe connection port (210) due to water pressure, vibration, etc. expands due to a temperature change or the like and moves toward the center of the pipe connection port (210). When moving, the pipe holding module (230) coupled to the pipe (P) is also moved together, and the elastic member support (270) presses the sealing member (286) of the second sealing module (285). At this time, the sealing member (286) of the second sealing module (285) resists expansion and absorbs the impact caused by the movement of the pipe (P), thereby ensuring the reliability of maintaining the confidentiality of the pipe connection port (210). I can do it.

The operation of the pipe connecting apparatus 200 according to the embodiment of the present invention configured as described above will be described as follows.

First, as illustrated in FIG. 4, the pipe connection device (200) is configured by storing the pipe gripping unit (220) in the storage home portion (215) provided in the pipe connection port (210). (210) The inserted pipe (P) is gripped by the pipe gripping unit (220) and fixedly coupled to the pipe connection port (210).

As described above, since the pipe gripping unit (220) is stored in the storage home part (215) provided in the pipe connection port (210) and the pipe (P) and the pipe gripping unit (220) can be easily combined, Man-hours can be saved and the connection between the pipe connection port (210) and the pipe gripping unit (220) can be made strong, so that the reliability of airtight maintenance can be ensured.

Next, the gripping operation of the pipe (P) by the pipe gripping unit (220) will be described as follows.

As shown in FIG. 5, when the pipe (P) is inserted from the opening (212) side of the pipe connection port (210), the pipe (P) is sequentially inserted into the first sealing module (281) and the hook holder part ( 251).

At this time, the plurality of wedges (257) respectively provided on the plurality of hooks (255) arranged on the outer column surface of the hook holder part (251) are hooked and press-fitted onto the outer column surface of the pipe (P), Together with the hook holder portion (251), the hook (255) is moved along the inclined portion (243) from the horizontal portion (241) provided on the inner column surface of the casing portion (240).

The hook holder part (251) compresses the elastic member (260), and the hook (255) moves from the horizontal part (241) provided on the inner pillar surface of the casing part (240) to the inclined part (243). By doing so, the imaginary line connecting the ends of the plurality of wedges (257) is arranged to be horizontal.

The end of the inserted pipe (P) is caught by the catching hill (213) of the pipe connection port (210), and its movement is limited.

Then, as illustrated in FIG. 6, when the insertion of the pipe (P) is completed, the elastic member (260) expands and moves the hook holder part (251) in the direction opposite to the insertion direction of the pipe (P). At this time, it moves to the horizontal part (241) from the inclined part (243) provided on the inner pillar surface of the hook (255) gas casing part (240) together with the hook holder part (251).

By moving the hook (255) from the inclined part (243) provided on the inner column surface of the casing part (240) to the horizontal part (241), a virtual line connecting the ends of the plurality of wedges (257) is formed. The main body portion (211) is disposed so as to be inclined downward in the central direction. Accordingly, the plurality of wedges (257) are further press-fitted into the outer column surface of the pipe (P).

As described above, the pipe (P) can be firmly fixed to the pipe connection port (210) using the pipe gripping unit (220).

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention. Is self-explanatory. Accordingly, such modifications or changes belong to the claims of the present invention.

200: Pipe coupling device
210: Pipe connection
211: Body
213: Catch Hill
215: Storage home
220: Pipe gripping unit
230: Pipe grip module
240: casing part
241: Horizontal section
243: Inclined part
250: Pipe gripping part
251: Hook holder
255: Hook
260: Elastic member
270: Elastic member support
281: First sealing module
285: Second sealing module
282, 286: Sealing material
283, 287: Sealing member support

Claims (14)

A pipe connection port into which a plurality of pipes are inserted; and a pipe gripping unit that is provided inside the pipe connection port and grips the pipe inserted into the pipe connection port,
In the pipe connection port,
A main body having an opening into which the pipe is inserted; and an inner cylindrical surface of the main body that is expanded in the radial direction of the main body to form a step,
Pipe connecting device including a storage home portion in which the pipe gripping unit is stored On the bottom surface of the storage home portion, the pipe gripping unit is formed by being expanded in the radial direction of the main body portion from the pillar surface in the main body portion so as to be seated,
In one side wall of the storage home portion, it is formed by being bent from the opening side end of the main body portion toward the center of the main body portion so as to be in close contact with the side portion of the pipe gripping unit,
2. The pipe connecting device according to claim 1, wherein the other side wall of the storage home portion is formed to have a step in the main body portion radial direction from the inner main body portion pillar surface. In the pipe connection port,
Formed so that a step can be made by expanding the main body part from the pillar surface in the main body radial direction,
A hooking hill to which one end of the pipe is in close contact when the pipe is inserted into the main body;
The pipe connection device according to claim 1, wherein the storage home portion is continuously expanded from the catching hill in the radial direction outside the main body so as to form a step. In the pipe gripping unit,
A pipe gripping module that is inserted into the storage home portion but that grips an outer column surface of the pipe inserted through and fixed to the pipe connection port; and a pipe gripping module that is housed in the storage home portion. The pipe connecting apparatus according to claim 1, further comprising a sealing module that elastically supports the sealing and maintains the sealing. In the pipe gripping module,
A hollow-shaped casing portion stored in the storage home portion; and a pipe gripping portion provided inside the casing portion so as to be inserted through the pipe and connected to an outer column surface of the pipe to fix the pipe Including
In the pipe gripping part,
A hook having a plurality of wedges hooked on an outer column surface of the pipe, and fixing the pipe to the pipe connection port; and provided in the casing portion so as to be inserted through the pipe. The pipe coupling device according to claim 4, further comprising a hook holder portion in which a plurality of hook seating holes into which seats are inserted and seated are formed on the outer column surface. On the inner pillar surface of the casing part,
A horizontal portion in the direction in which the pipe is inserted, and an inclined portion that is continuously inclined downward from the horizontal portion in the radial direction of the main body,
When the pipe is inserted through the hook holder part, the hook is caught by an outer surface of the pipe and reciprocates between the horizontal part and the inclined part together with the hook holder part. Item 6. The pipe connecting device according to Item 5. In the pipe gripping module,
An elastic member provided on one side of the hook holder part and elastically supporting the hook holder part;
When the pipe is inserted into the hook holder part, the elastic member is compressed, the hook is moved from the horizontal part to the inclined part, and when the pipe is completely inserted into the hook holder part, The pipe connecting device according to claim 6, wherein an elastic member is expanded and the hook is moved from the inclined portion to the horizontal portion. When the hook is moved from the horizontal part to the inclined part, the virtual line connecting the ends of the plurality of wedges is arranged to be horizontal,
When the hook is moved from the horizontal part to the inclined part, the imaginary line connecting the ends of the plurality of wedges is arranged to be inclined downward toward the center of the main body part. The pipe coupling device according to claim 7. In the pipe gripping module,
An elastic member supporting portion provided on one side of the casing portion and supporting the elastic member;
In the elastic member,
The pipe connecting device according to claim 7, wherein one end portion is connected to the elastic member supporting portion, the other end is connected to the hook holder portion, and the hook holder portion is elastically supported. In the elastic member,
The pipe coupling device according to claim 9, wherein the pipe is a coil spring or a wave spring through which the pipe is inserted. In the sealing module,
The pipe connecting device according to claim 4, further comprising a sealing member through which the pipe is inserted, connected to the pipe gripping module, elastically supporting the pipe gripping module, and maintaining sealing. In the sealing member,
The pipe connecting device according to claim 11, wherein the pipe is an elastic O-ring through which the pipe is inserted. In the sealing module,
The pipe connection according to claim 11, further comprising a sealing member support part that is inserted through the pipe, has one side connected to one side wall of the storage home part, and the other side connected to the sealing member, and supports the sealing member. apparatus. In the sealing module,
The pipe connecting device according to claim 4, wherein the pipe is inserted through, and is arranged on both sides of the pipe gripping module so as to elastically support the pipe gripping module and maintain sealing.

Images