TWI583882B - Apparatus for connecting pipe - Google Patents

Description

Pipe connection device

The present invention relates to a pipe connecting device, and more particularly to a pipe connecting device for connecting a plurality of pipes to each other.

In general, the pipe connecting device is a tool for interconnecting pipes used as pipes for supplying tap water and gas in a place such as a home or a business office.

Further, the pipe connecting device is used in various shapes such as a straight type, a bent pipe type, a T-shaped shape, and a cross type depending on its structural shape.

In particular, in the case where the tubes having fluid flow are connected to each other, it is recognized that airtightness and connectivity are the most important factors.

In order to improve airtightness and connectivity, the conventional pipe joint device welds or uses a screw connection at a joint portion of the pipe. However, when a joint requires a strong locking force, an additional tool is required, thereby increasing the work of connecting the pipe. The problem of quantity.

In order to solve the problems as described above, a product capable of connecting or separating tubes in a one-touch manner on a pipe connecting device has recently been sold.

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

In the Korean Patent No. 10-0493329, another fixing method of the spring retaining ring 50 or the like is used, but in order to mount the spring retaining ring 50 on the pipe connecting device, it is necessary to use another tool, and the work is troublesome. This has the problem of increasing the workload and manufacturing costs.

In addition, as shown in FIG. 1, the pipe connecting device disclosed in Korean Patent No. 10-1023943 includes: forming an inclined surface 112 on the inner circumferential surface of the pipe joint interface 110. Blocking block 111; after the outer circumferential surface of the card holder 120 is provided with the mounting groove 123 having the bayonet protrusion 122, the card holder 120 is inserted into the pipe joint interface 110, and the bayonet protrusion 122 is moved along the inclined surface 112, so that the blocking block 111 It is clamped in the mounting groove 123 to connect the pipe joint interface 110 and the card holder 120.

As described above, in the Korean Patent No. 10-1023943, it is necessary to form the blocking block 111 having the inclined surface 112 on the inner circumferential surface of the pipe joint interface 110, and to form the mounting with the bayonet protrusion 122 on the outer circumferential surface of the card holder 120. Holes, therefore, have problems in manufacturing manufacturing of the tubular interface 110 and the deck 120 that increase manufacturing time and manufacturing costs.

In addition, in the case where the tensile force acting on the tube such as water pressure, vibration, temperature change or the like is large, the stretching force acting on the tube can cause the blocking block 111 or the bayonet protrusion 122 to be easily damaged, and the damage can cause the tube to be damaged. The interface 110 and the deck 120 are disconnected, and gas or tap water is leaked, thereby having a problem of reducing the reliability of maintaining airtightness.

Prior art literature

Patent Document 1 Korean Registered Patent No. 10-0493329 (jointop Co., Ltd.) 2005.05.25 Announcement

Patent Document 2 Korean Registered Patent No. 10-1023943 (jointop Co., Ltd.) 2011.03.15 Announcement

Accordingly, the technical problem to be solved by the present invention is to provide a pipe connecting device which is easy to perform assembly work, reduces manufacturing time and manufacturing cost, and ensures maintenance of airtight reliability.

According to an aspect of the invention, the present invention can provide a pipe connecting device comprising: a pipe joint interface, the pipe joint interface capable of inserting a plurality of pipes; and a pipe clamping unit, the pipe clamping unit being disposed at The inside of the pipe joint interface and the pipe inserted in the pipe joint interface, the pipe joint interface includes: a main body portion having an opening portion inserted into the pipe; and a receiving groove portion, The accommodating groove portion is expanded from the inner circumferential surface of the main body portion in the radial direction of the main body portion to have a gap ( Forming and accommodating the tube clamping unit.

The bottom surface of the accommodating groove portion may be formed to expand from the inner circumferential surface of the main body portion in a radial direction of the main body portion to mount the tube clamping unit, and one side wall of the accommodating groove portion is formed as Bending from a distal end portion of the opening portion side of the main body portion in a center direction of the main body portion such that one side wall of the accommodating groove portion abuts against a side portion of the tube holding unit, the accommodating groove The other side wall of the portion is formed to have a gap from the inner circumferential surface of the main body portion along the radial direction of the main body portion.

The pipe joint interface further includes: a stop that is formed from a radially extending direction of the main portion of the main body portion in a radial direction of the main body portion, and is formed by inserting the pipe into the In the case of the main body portion, one end portion of the tube abuts against the stopper, and the accommodating groove portion may be continuously formed from the stopper in a radial direction of the main body portion with a gap.

The tube clamping unit may include: a tube clamping member housed in the accommodating groove portion and sandwiching an outer peripheral surface of the tube inserted through the tube to be fixed in the tube interface; and a sealing member housed in the receiving groove portion and elastically supporting and maintaining a sealing of the tube holding member.

The tube clamping member may include: a hollow cover portion housed in the receiving groove portion; and a tube clamping portion disposed inside the cover portion to penetrate the insertion portion And fixing the tube in contact with an outer peripheral surface of the tube, the tube holding portion may include: a hook having a plurality of wedges hung on an outer circumferential surface of the tube to fix the tube And the hook bracket portion, the hook bracket portion is disposed inside the cover portion to penetrate the tube, and a plurality of insertion and mounting are formed on an outer circumferential surface of the hook bracket portion Hook the hook mounting holes.

a level portion is formed on an inner circumferential surface of the cover portion in an insertion direction of the tube, and an inclined portion that is inclined downward from the level portion in a radial direction of the body portion, and the tube is inserted through In the case of the hook bracket portion, the hook may be hung on the outer peripheral surface of the tube to reciprocate between the level portion and the inclined portion together with the hook bracket portion.

The tube clamping member further includes: an elastic member disposed at one side of the hook bracket portion and elastically supporting the hook bracket portion, in the case of inserting the tube into the hook bracket portion The elastic member is compressed to move the hook from the level portion along the inclined portion, and in the case where the tube is completely inserted into the hook bracket portion, the elastic member is expanded to enable the The hook moves from the inclined portion to the level portion.

The hook is configured to horizontally connect an imaginary line connecting the ends of the plurality of wedges from the level portion along the inclined portion, and the hook is along the level portion from the inclined portion In the case of moving, an imaginary line connecting the ends of the plurality of wedges is disposed to be inclined downward in the center direction of the main body portion.

The tube clamping member further includes: an elastic member supporting portion disposed on one side of the cover portion and supporting the elastic member, one end portion of the elastic member and the elastic member supporting portion The other end is connected to the hook bracket portion to elastically support the hook bracket portion.

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

The sealing member may include a seal that is insertable through the tube and in contact with the tube holding member to elastically support and maintain a seal of the tube holding member.

The seal may be an O-ring that penetrates the elastomeric material into which the tube is inserted.

The sealing member may further include: a seal supporting portion, the tube is inserted through the tube supporting portion, one side of the sealing member supporting portion is in contact with a side wall of the accommodating groove portion, and the other side is The seal contacts to support the seal.

The seals may be respectively disposed on both sides of the tube clamping member to allow the tube to be inserted through, and to elastically support and maintain the tube clamping member.

In the embodiment of the present invention, the accommodating groove portion accommodating the pipe clamping unit is provided on the inner circumferential surface of the main body portion of the pipe joint interface, so that the pipe joint interface and the pipe clamping unit are easily assembled and the workload is reduced, and Do not make the connection between the pipe joint interface and the pipe clamping unit With the additional fixing tool, it is possible to reduce the manufacturing time and the manufacturing cost, and it is possible to firmly connect the pipe joint interface and the pipe clamping unit to ensure the reliability of maintaining airtightness.

110‧‧‧Management interface

111‧‧‧Block block

112‧‧‧Sloping surface

120‧‧‧ deck

122‧‧‧ bayonet protrusion

123‧‧‧Installation slot

200‧‧‧ pipe connection device

210‧‧‧Management interface

211‧‧‧ Main body

212‧‧‧ openings

213‧‧ ‧ stop

215‧‧‧ accommodating groove

216‧‧‧ bottom

217‧‧‧ side wall

218‧‧‧ side wall

220‧‧‧ tube clamping unit

230‧‧‧ pipe clamping elements

240‧‧‧ Cover

241‧‧‧Levels

243‧‧‧ inclined section

250‧‧‧ tube clamping

251‧‧‧ hook bracket

252‧‧‧Hook mounting holes

255‧‧‧ hook

256‧‧‧plate body

257‧‧‧ wedges

260‧‧‧Flexible parts

270‧‧‧ Elastic support

281‧‧‧First sealing element

282‧‧‧Seal

283‧‧‧Sealing support

285‧‧‧Second sealing element

286‧‧‧Seal

287‧‧‧Seal support

1 is a cross-sectional view of a pipe connecting device according to the prior art.

2 is a perspective view of a tube connecting device in accordance with an embodiment of the present invention.

Figure 3 is an exploded perspective view of a tube connecting device in accordance with one embodiment of the present invention.

4 is a cross-sectional view of a tube connecting device in accordance with an embodiment of the present invention.

5 and 6 are operational diagrams of the operation of the tube gripping member in accordance with one embodiment of the present invention.

7 and 8 are views showing an operation state in which a sealing member operates in accordance with an embodiment of the present invention.

In order to fully understand the present invention and the advantages of the present invention and the objects achieved in accordance with the embodiments of the present invention, reference is made to the accompanying drawings and drawings which illustrate the preferred embodiments of the invention.

Hereinafter, the present invention will be described in detail by way of preferred embodiments of the invention described with reference to the drawings. The same reference numerals in the various drawings denote the same components.

2 is a perspective view of a pipe connecting device according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of a pipe connecting device according to an embodiment of the present invention, and FIG. 4 is a pipe connecting device according to an embodiment of the present invention. FIG. 5 and FIG. 6 are operational diagrams showing the operation of the tube gripping member in accordance with an embodiment of the present invention, and FIGS. 7 and 8 are operational diagrams of the operation of the seal member in accordance with an embodiment of the present invention. .

Referring to FIGS. 2-8, a pipe connecting device 200 according to an embodiment of the present invention includes a pipe joint interface 210 into which a plurality of pipes P are inserted, a pipe clamping unit 220, and a pipe clamping unit 220. The tube P is inserted inside the tube interface 210 and clamped into the tube interface 210.

The pipe connecting device 200 according to the present invention inserts a plurality of pipes P into the pipe joint interface 210, and clamps the pipe P inserted into the pipe joint interface 210 by the pipe holding unit 220 provided inside the pipe joint interface 210. Thereby, the plurality of tubes P are connected to each other in communication.

Referring to FIGS. 2 to 4, the pipe joint interface 210 in the present embodiment is made of a metal or synthetic resin material to be capable of providing axial force and reducing vibration.

Further, the pipe joint interface 210 is formed in a hollow shape, and various forms such as a straight type, a bent type, a T-shaped type, and a cross type can be used.

The pipe joint interface 210 includes a main body portion 211 having an opening portion 212 into which the pipe P is inserted, and a stopper 213 extending from the inner circumferential surface of the main body portion 211 along the radial direction of the main body portion 211. When the tube P is inserted into the main body portion 211, one end portion of the tube P abuts against the stopper 213, and the groove portion 215 is received from the inside of the main body portion 211. The circumferential surface is expanded in the radial direction of the main body portion 211 to be formed with a gap, and accommodates the tube holding unit 220.

The pipe connecting device 200 according to the present invention facilitates assembly of the pipe joint interface 210 and the pipe clamping unit 220 by accommodating the pipe clamping unit 220 in the accommodating groove portion 215 provided in the pipe joint interface 210, thereby reducing the assembly required. The amount of work.

Further, the pipe joint interface 210 and the pipe clamping unit 220 can be easily assembled and connected without using another fixing tool such as a spring retaining ring, so that the manufacturing time and manufacturing cost of the pipe connecting device 200 can be reduced.

The main body portion 211 is made of a metal or a synthetic resin material and formed into a hollow shape, and is manufactured in various forms such as a linear type, a bent tube type, a T-shaped type, and a cross type.

Further, a stopper 213 is formed on the inner peripheral surface of the main body portion 211 so that one end portion of the inserted pipe P abuts against the stopper 213. The tube P inserted in the main body portion 211 is in close contact with the stopper 213, and the tube P is restricted in its moving range by the stopper 213.

Here, the stopper 213 is expanded from the center portion of the main body portion 211 in the radial direction of the main body portion 211, and is formed to have a gap. Further, the stopper 213 is expanded in the same size as the outer diameter of the pipe P.

Further, an inner circumferential surface of the main body portion 211 is formed with a housing groove portion 215 as a space for accommodating the tube clamping unit 220.

The accommodating groove portion 215 is continuously expanded from the stopper 213 in the radial direction of the main body portion 211 to be formed with a gap. In other words, the stopper 213 and the accommodating groove portion 215 are continuously formed in order from the center portion of the main body portion 211 toward the end portion of the opening portion 212 side.

The bottom surface 216 of the accommodation groove portion 215 is formed to expand from the inner circumferential surface of the main body portion 211 in the radial direction of the main body portion 211 to mount the tube clamping unit 220. In addition, the bottom surface 216 of the accommodating groove portion 215 is formed to be level enough to accommodate the tube holding unit 220. The length of the bottom surface 216 of the accommodation groove portion 215 has a length capable of accommodating the tube clamping unit 220.

Further, one side wall of the accommodating groove portion 215 is formed to be bent from the end portion of the main body portion 211 toward the center of the main body portion 211 so that the side wall 217 of the accommodating groove portion 215 abuts against the tube holding unit 220. Side.

Here, the one side wall 217 of the accommodating groove portion 215 is attached to the bottom surface 216 of the accommodating groove portion 215, and the end portion of the main body portion 211 on the opening portion 212 side is directed to the side of the tube holding unit 220. The form in which the pressure is applied is curved in the center direction of the main body portion 211.

Further, the other side wall 218 of the accommodating groove portion 215 is formed from the inner circumferential surface of the main body portion 211 in the radial direction of the main body portion 211, that is, the wall portion continuously having the step from the stopper 213 is equivalent to accommodating The other side wall 218 of the groove portion 215.

As described above, after the main body portion 211 of the pipe joint interface 210 is expanded in the radial direction of the main body portion 211 and the pipe clamping unit 220 is attached, the end portion of the main body portion 211 on the opening portion 212 side is directed toward the center of the main body portion 211. The bending is performed to form the accommodating groove portion 215 capable of accommodating the pipe clamping unit 220, so that the pipe joint interface 212 and the pipe clamping unit 220 can be easily assembled, thereby reducing the manufacturing time and manufacturing cost required for assembly.

On the other hand, the tube holding unit 220 according to the present embodiment functions to clamp the tube P inserted in the tube interface 210.

Referring to FIGS. 3 and 4, the tube clamping unit 220 includes a tube clamping member 230 that is housed in the housing groove portion 215 and that clamps the inserted tube P. The outer peripheral surface of the tube P is fixed in the tube interface 210; the first sealing member 281 and the second sealing member 285, the first sealing member 281 and the second sealing member 285 are received in the receiving groove portion 215, and the tube The clamping element 230 performs elastic support and maintains a seal.

The tube holding unit 220 in the present embodiment is manufactured in a unit body so as to be insertable and accommodated in the accommodating groove portion 215, but it is not limited thereto, and the respective constituent members constituting the tube holding unit 220 may be sequentially inserted. And housed in the accommodating groove portion 215.

The tube holding member 230 in this embodiment functions to directly clamp the outer peripheral surface of the tube P inserted in the tube interface 210, and fix the inserted tube P to the tube interface.

The tube clamping member 230 includes a hollow cover portion 240 that is housed in the receiving groove portion 215, and a tube holding portion 250 that is disposed inside the cover portion 240 to penetrate the insertion tube P. And the tube P is fixed in contact with the outer peripheral surface of the tube P; the elastic member 260 is disposed on one side of the tube holding portion 250 and elastically supports the tube holding portion 250; the elastic member supporting portion 270, the elasticity The piece supporting portion 270 is provided at one side of the cover portion 240 and supports the elastic member 260.

The cover portion 240 is housed in the accommodating groove portion 215 to function to support the tube holding portion 250.

The cover portion 240 is made of metal or synthetic resin, and is formed in a hollow shape to enable the tube holding portion 250 to be inserted into the inside of the cover portion 240, thereby supporting the outer peripheral surface of the tube holding portion 250 inserted therein. effect.

In addition, the tube clamping portion 250 includes a hook 255 having a plurality of wedges 257 hung on the outer circumferential surface of the tube P so that the tube P is fixed in the tube interface 210; the hook bracket portion 251, The hook bracket portion 251 is provided inside the cover portion 240 to penetrate the insertion tube P, and a plurality of hook attachment holes 252 into which the attachment hooks 255 can be inserted are formed on the outer circumferential surface of the hook holder portion 251.

The hook 255 is made of a metal material, and the hook 255 includes a plurality of wedges 257 and a plate-like body 256 formed of a level, and the plurality of wedges 257 are formed on one side of the plate-like body 256 and are disposed obliquely in the insertion direction of the tube P.

Here, the plurality of wedges 257 are formed to have an inclination to incline the imaginary line connecting the ends of the plurality of wedges 257, that is, the height of the wedge 257 disposed adjacent to the central portion of the tubular interface 210 is gradually increased.

The hooks 255 in the present embodiment are arranged at a plurality of intervals on the outer circumferential surface of the hook holder portion 251. That is, the plurality of hooks 255 are arranged at equal intervals along the outer peripheral surface of the pipe P, and the plurality of wedges 257 provided on the respective hooks 255 are hung on the outer peripheral surface of the pipe P, thereby preventing the pipe P from being detached from the pipe joint interface 210.

The plurality of hooks 255 as described above are mounted on the hook bracket portion 251, the hook bracket portion 251 is made of metal or synthetic resin, and the hook bracket portion 251 is provided inside the cover portion 240 to function as the support hook 255.

A hook attachment hole 252 is provided on the outer circumferential surface of the hook bracket portion 251 to enable insertion of the mounting hook 255.

The connection of the hook bracket portion 251 and the hook 255 will be described below. The plurality of wedges 257 are inserted into the hook mounting holes 252 to be in contact with the outer peripheral surface of the tube P, and both ends of the plate-shaped body 256 are hung on the hook mounting holes. The form on 252 is installed. Further, the plate-like body 256 is in contact with the inner peripheral surface of the cover portion 240, and moves together according to the movement of the tube P inserted in the hook holder portion 251.

On the other hand, the inner peripheral surface of the cover portion 240 is formed with a level portion 241 and an inclined portion 243 which is continuously inclined outward from the level portion 211 in the radial direction of the body portion 211 in the insertion direction of the tube P.

Thus, when the tube P is inserted through the hook holder portion 251, the plurality of wedges 257 are hung on the outer peripheral surface of the tube P, and therefore, the plate-like body 256 of the hook 255 is moved along the direction of movement of the tube P. The level portion 241 formed on the inner circumferential surface of the cover portion 240 is in contact with the inclined portion 243 to reciprocate. In addition, the moving hook bracket portion 251 by the hook 255 also reciprocates together.

On the other hand, in the present embodiment, in order to enable the hook 255 and the hook bracket portion 251 to reciprocate, an elastic member that elastically supports the hook bracket portion 251 is provided.

The elastic member 260 in this embodiment is a coil spring or a wave spring that can pass through the insertion tube P.

The elastic member 260 is disposed opposite to one side of the hook holder portion 251, particularly, the insertion direction of the tube P.

Thereby, as shown in FIG. 5, in the case where the tube P is inserted into the hook holder portion 251 and the tube P is moved in the insertion direction, the hook holder portion 251 compresses the elastic member 260, and the hook 255 is in close contact with the plate-like body 256 thereof. The cover portion 240 moves from the level portion 241 along the inclined portion 243 in a state of the inner peripheral surface of the cover portion 240.

Further, as shown in FIG. 6, when the tube P is completely inserted into the hook holder portion 251 (for example, when one end portion of the tube P abuts against the stopper 213), the elastic member 260 is inflated to cause the hook holder portion 251. The hook 255 moves from the inclined portion 243 to the level portion 241 in a state in which the plate-like body 256 is in close contact with the inner circumferential surface of the cover portion 240 in a direction opposite to the insertion direction of the tube P.

As described above, the hook holder portion 251 and the hook 255 are reciprocated according to the insertion of the tube P because the hook 255 is hung on the outer peripheral surface of the tube P to move together with the tube P.

Further, as shown in FIG. 5, when the tube P is inserted into the hook holder portion 251, the hook is moved from the level portion 241 along the inclined portion 243 by the plurality of wedges 257 hooked on the outer peripheral surface of the tube P, thereby making An imaginary line connecting the ends of the plurality of wedges 257 is configured in a level. This is to enable the tube P to be inserted smoothly.

Further, as shown in FIG. 6, in the case where the insertion of the tube P is completed, the elastic member 260 moves the hook 255 hooked on the outer peripheral surface of the tube P from the inclined portion 243 along the level portion 241, thereby causing the connection to be plural The imaginary line at the end of the wedge 257 is disposed to be inclined inward in the center direction of the main body portion 211. This is to cause the plurality of wedges 257 to more strongly squeeze the outer peripheral surface of the pipe P to securely fix the pipe P in the pipe joint interface 210.

As described above, in order to fix the plurality of wedges when the pipe P is fixed to the pipe joint interface 210, the level portion 241 and the inclined portion 243 are formed on the inner peripheral surface of the cover portion 240.

On the other hand, the elastic member supporting portion 270 is provided at one side of the cover portion 240 to serve The role of the elastic member 260 is supported.

The elastic member supporting portion 270 is provided opposite to one side of the cover portion 240, particularly to the insertion direction of the tube P. In addition, the elastic member supporting portion 270 is disposed between the cover portion 240 and the second sealing member 285.

Thereby, one end portion of the elastic member 260 is connected to the elastic member supporting portion 270, and the other end portion is connected to the hook bracket portion 251, so that the elastic member supporting portion 270 also functions to restrict the movement of the hook bracket portion 251 in the horizontal direction.

On the other hand, the sealing member in the present embodiment functions to elastically support the tube holding member 230 accommodated in the accommodating groove portion, and also functions to prevent gas, tap water or the like from leaking through the pipe joint interface 210.

Referring to FIG. 4, the first seal assembly 281 and the second seal assembly 285 include: seals 282, 286 through which the tube P is inserted and contacted with the tube clamp member 230 to clamp the member 230 is elastically supported and kept sealed; the seal supporting portions 283, 287 are inserted through the tube P, one side of which is in contact with the side walls 217, 218 of the receiving groove portion, and the other side is sealed The pieces 282, 286 are in contact to support the seals 282, 286.

The seals 282, 286 are formed to have a shape that can penetrate the insertion tube P, and are made of an O-ring of an elastic material such as synthetic resin or rubber to elastically support the tube holding member 230.

The seals 282, 286 maintain the seal of the tube interface 210 and provide resiliency to the tube grip element 230.

Further, the seal supporting portions 283 and 287 are made of a metal or a synthetic resin material, and are formed in a shape that can penetrate the insertion tube P.

The seal support portions 283, 287 prevent the seal members 282, 286 from being detached from the accommodating groove portion 215 and are disposed on the side walls 217, 218 of the accommodating groove portion 215 to reinforce the sealing of the pipe joint interface 210.

As shown in FIG. 4, the first sealing member 281 and the second sealing member 285 in this embodiment are respectively disposed on both sides of the tube clamping member 230. That is, to be close to each other The first sealing member 281 and the second sealing member 285 are disposed on the two side walls 217, 218 of the spacer portion, and the tube clamping member 230 is disposed between the first sealing member 281 and the second sealing member 285.

As shown in FIG. 4, the first sealing member 281 and the second sealing member 285 may be configured as a first sealing member 281 adjacent to the opening portion 212 side of the tubular interface 210 and a second sealing adjacent to the central portion side of the tubular interface 210. Element 285.

At this time, the first sealing member 281 is configured such that the seal supporting portion 283 is disposed in close contact with the side wall 217 of the accommodating groove portion 215, and the sealing member 282 is in close contact between the hood portion 240 and the seal supporting portion 283. Configuration.

In addition, the second sealing member 285 arranges the seal supporting portion 287 in the form of being in close contact with the other side wall 218 of the accommodating groove portion 215, and causes the sealing member 286 to abut against the elastic member supporting portion 270 and the seal supporting portion 287 Formal configuration between.

As described above, in the case where the first sealing member 281 and the second sealing member 285 are respectively disposed on both sides of the tube clamping member 230, the functions of the first sealing member 281 and the second sealing member 285 are as follows: When the tension is applied to the tube P by water pressure, vibration, or the like, and the tube P is moved to the outside of the tube interface 210, the tube holding member 230 connected to the tube P is also moved together to cause the cover portion 240. The seal 282 of the first sealing element 281 is compressed. At this time, the seal 282 of the first sealing member 281 resists the tensile force and absorbs the impact by the movement of the pipe P, thereby ensuring the reliability of the pipe joint interface 210 to maintain airtightness.

On the other hand, when the pipe P that moves to the outside of the pipe joint interface 210 such as water pressure or vibration expands in accordance with a temperature change or the like and moves in the direction of the center portion of the pipe joint interface 210, the pipe P is The connected tube gripping elements 230 also move together to cause the elastic member support 270 to compress the seal 286 of the second sealing element 285. At this time, the seal 286 of the second sealing member 285 resists expansion, and the movement of the tube P absorbs the impact to ensure the reliability of maintaining the airtightness of the tubular interface 210.

The following is a connection to an embodiment of the present invention having the structure as described above The operation of the pick-up device 200 will be described. First, as shown in FIG. 4, the pipe connecting device 200 is configured to house the pipe clamping unit 220 in the receiving groove portion 215 provided in the pipe joint interface 210, and through the pipe clamping member 220. The tube P inserted in the tube interface 210 is clamped so that the tube P is fixedly attached to the tube interface 210.

As described above, the tube holding unit 220 is housed in the accommodating groove portion 215 provided in the pipe joint interface 210, so that the pipe P and the pipe clamping unit 220 are easily assembled, thereby reducing the workload and stably connecting the pipe joints. The interface 210 and the tube grip unit 220 ensure the reliability of maintaining airtightness.

Next, the clamping operation of the pipe P by the pipe clamping unit 220 will be described as follows. As shown in FIG. 5, in the case where the pipe P is inserted from the opening portion 212 side of the pipe joint interface 210, the pipe P is sequentially inserted. It is into the first seal assembly 281 and the hook bracket portion 251.

At this time, a plurality of wedges 257 are respectively disposed on the plurality of hooks 255 disposed on the outer circumferential surface of the hook holder portion 251, and the plurality of wedges 257 are hung on the outer peripheral surface of the tube P and pressed, and the hooks 255 and The hook bracket portion 251 moves together along the inclined portion 243 from the level portion 241 provided on the inner circumferential surface of the cover portion 240.

In addition, the hook bracket portion 251 compresses the elastic member 260, and since the hook 255 moves from the level portion 241 provided on the inner peripheral surface of the cover portion 240 along the inclined portion 243, the imaginary line connecting the ends of the plurality of wedges 257 is leveled. Ground configuration.

In addition, the end of the inserted tube P abuts against the stop 213 of the tube interface 210 to limit its movement.

Further, as shown in FIG. 6, when the tube P is completely inserted, the elastic member 260 is inflated to move the hook holder portion 251 in a direction opposite to the insertion direction of the tube P. At this time, the hook 255 moves along the level portion 241 from the inclined portion 243 provided on the inner circumferential surface of the cover portion 240 together with the hook holder portion 251.

Since the hook 255 is along the inclined portion 243 provided on the inner peripheral surface of the cover portion 240 The leveling unit 241 moves to arbitrarily arrange the imaginary line connecting the ends of the plurality of wedges 257 inward in the center direction of the main body portion 211. Thereby, the plurality of wedges 257 are further pressed into the outer peripheral surface of the pipe P.

As described above, the tube P can be firmly fixed to the tube interface 210 by the tube holding unit 220.

The present invention is not limited to the embodiments described above, and various modifications and changes can be made without departing from the spirit and scope of the invention. Therefore, various modifications and variations are within the scope of the patent claims of the present invention.

200‧‧‧ pipe connection device

210‧‧‧Management interface

220‧‧‧ tube clamping unit

Claims (6)

A pipe connecting device, the pipe connecting device comprising: a pipe joint interface, the pipe joint interface being capable of inserting a plurality of pipes; and a pipe clamping unit, the pipe clamping unit being disposed inside the pipe joint interface and Holding the tube inserted in the tube connection port; the tube interface includes: a body portion having an opening portion insertable into the tube; and a receiving groove portion, the receiving groove portion An inner circumferential surface of the main body portion is expanded in a radial direction of the main body portion to be formed with a gap, and accommodates the tube clamping unit; the tube clamping unit includes: a tube clamping member, the tube holder The holding member includes: a cover portion; an elastic member which is a coil spring or a wave spring through which the tube can be inserted; a hook bracket portion; and an elastic member support portion, the elastic member support portion is disposed at the cover One side of the portion, and supporting the elastic member, one end of the elastic member is coupled to the elastic member supporting portion, and the other end portion is coupled to the hook bracket portion to elastically support the hook bracket portion; and sealing Component The component includes: a first sealing component and a second sealing component respectively disposed on both sides of the pipe clamping component to be in contact with the pipe clamping component, so that the pipe is inserted through, and the pipe clamping component is Elastic support and keep the seal. The pipe connecting device according to claim 1, wherein a bottom surface of the accommodating groove portion is formed to expand from an inner circumferential surface of the main body portion in a radial direction of the main body portion to mount the pipe clamping unit , One side wall of the accommodating groove portion is formed to be bent from a distal end portion of the main body portion toward a center direction of the main body portion such that one side wall of the accommodating groove portion abuts against the tube The side portion of the holding unit, the other side wall of the accommodating groove portion is formed to have a gap from the inner circumferential surface of the main body portion along the radial direction of the main body portion. The pipe connecting device according to claim 1, wherein the pipe joint interface further comprises: a stop block that is expanded from the inner circumferential surface of the main body portion along a radial direction of the main body portion Formed poorly, and with the tube inserted into the body portion, the end of the tube abuts against the stop, the receiving groove portion continuously from the stop along the body The radial direction of the portion is formed with a gap. The pipe connecting device according to claim 1, wherein the pipe clamping portion includes: a hook, the hook includes a plurality of wedges, and a level portion from an inner circumferential surface of the cover portion along the cover portion When the inclined portion on the inner circumferential surface moves, the imaginary line connecting the ends of the plurality of wedges is arranged in the horizontal direction, and when the hook moves from the inclined portion along the level portion, An imaginary line connecting the ends of the plurality of wedges is disposed to be inclined inward in the center direction of the main body portion. The pipe connecting device according to claim 1, wherein the seal member is an O-ring capable of penetrating the elastic material into which the pipe is inserted. The pipe connecting device of claim 1, wherein the sealing member further comprises: a seal supporting portion, the tube supporting portion being insertable through the tube, and a side of the sealing member supporting portion The side walls of the receiving groove portion are in contact with the other side in contact with the sealing member to support the sealing member.