KR20150120328A - Pipe connector - Google Patents

Abstract

According to the present invention, a pipe connector is used to fit a pipe enabling a fluid to flow through. The pipe connector comprises: a connection member which has an insertion port enabling the pipe to be inserted by a preset length; a target object coupled while being moved towards a connection member and connected to the pipe through the coupling in order to link the pipe and the internal path; a locking ring fixated and mounted to the pipe inside the connection member, seals a space between the pipe and the connection member, and presses an outer surface of the pipe when the pipe is inserted to fixate a location; a ferrule assembly including a ferrule integrated and coupled to the locking ring, deformed to be directed to a center of the pipe when the connection member and the target object are completely coupled together, and seals the space between the pipe and the connection member; and an O-ring penetrated by the pipe inside the connection member and arranged to be in contact with a side of the connection member and the ferrule assembly to be pressed when the connection member is coupled. The O-ring comprises: a center unit in contact with the inner periphery of the connection member; and a side protrusion unit which protrudes from each of both sides of the center unit, elastically deformed when the connection member is coupled. The side protrusion unit presses and supports the locking ring through elastic deformation and fills the space between the connection member, pipe, and ferrule assembly at the same time.

Description

Piping connector {Pipe connector}

This specification relates to a connector for piping connection.

As a typical application example for connecting pipes, there is a case in which an indoor unit and an outdoor unit of an air conditioner are connected and fitted. A welding method can be applied to a conventional method of connecting pipes by connecting them. However, the welding method is not preferable because it consumes a lot of time and there is a risk of damage to the pipe.

On the other hand, brass has been mainly used as a material of a conventional connector because of its excellent physical characteristics and beauty. In the case of using brass material, it was possible to perform fitting by not only welding but also expanding method. However, the free-cutting brass, which is mainly used as the material of the connector, contains lead and can not meet the ROHS standard. Therefore, a material for a connector that can replace brass is required.

Also, because of the increase in the price of copper, there is a great need for a substitute material for copper, which is costly when copper pipes are used. Under these circumstances, there is a need for a connector that can replace copper and a connector suitable for the tube of the material.

On the other hand, when aluminum is used as the material of the connector, expensive brazing and high-frequency argon welding must be applied when fitting by welding, which is not preferable. In addition, there is a problem that the expansion method of increasing the diameter of the tube is difficult to be applied due to the nature of aluminum having good ductility. Thus, there is a growing demand for a connector that can sufficiently prevent leakage of a material flowing through the inside of the pipe while using aluminum as a pipe material.

In accordance with this demand, Korean Patent Laid-Open Publication No. 10-2011-0100035 discloses a method of connecting two pipes of different materials by a connecting member, wherein a ferrule for fixing the pipe therein, And a penetrating member for preventing the contact portion of the tube from being exposed to the air to prevent corrosion.

However, all of these conventional techniques may fail to hold the ferrule in a fixed state before the fitting operation is performed, thereby causing problems such as loss of the ferrule or failure to position the ferrule in the correct position when the fitting is engaged .

In addition, it is difficult to keep the depth of the inserted tube constant, which may cause a problem of connection failure or breakage due to a difference in insertion length of the tubes on both sides during the fitting process.

Further, there is a problem in that it is not possible to confirm whether the fitting is completed correctly in the state where the pipe is inserted, or it is inconvenient to use, for example, to confirm by using a separate mechanism.

In addition, since the penetrating member is exposed to the outside, the penetrating member may be damaged during circulation prior to the connecting operation of the tube, and the penetrating member may be detached due to contact with the penetrating member before the insertion operation of the tube occurs It is possible.

In addition, since the pipe and the connecting member can be brought into contact with each other within the connecting member in a state where the pipe is inserted into the connecting member, a potential difference corrosion may occur inside the connecting member.

It is an object of the present invention to provide a method and a device for fitting a fitting in a state in which a position of a ferrule is fixed, maintaining a constant length of a pipe to be inserted, So that the space between the connecting member and the pipe can be completely sealed.

A connector for connecting a pipe according to an embodiment of the present invention is a connector for fitting a pipe through which a fluid flows, the connector comprising: a connection member having an insertion port into which the pipe is inserted by a predetermined length; A counterpart coupled to the connection member while being moved in a direction to be close to the connection member, the connection member being connected by the connection so that the flow path inside the pipe is communicated; A locking ring fixed to the pipe at the inner side of the connecting member and hermetically sealed between the pipe and the connecting member, the position being fixed by pressing the outer surface of the pipe when the pipe is inserted; And a paralle which is deformed toward the center of the pipe when the connection member and the mating member are fully engaged, thereby sealing between the pipe and the connection member; And an O-ring inserted through the pipe at the inside of the connecting member and being pressed against one side of the connecting member and the ferrule assembly when the connecting member is engaged, and the O- And a side projection protruding from both sides of the central portion and being elastically deformed when the coupling member is engaged, the side projection being configured to press and support the locking ring by elastic deformation, and at the same time, And the space between the tube and the ferrule assembly.

The locking ring includes a ring mounting portion bent to surround the end portion of the ferrule and fixed to the ferrule; And a tube restraining part which is bent at an angle in the inserting direction of the tube along the inner circumference and is fixedly attached to the outer side surface of the tube.

The ferrule includes: a locking ring seating portion protruding along the outer periphery and supported by the O-ring, to which the locking ring is coupled; A paralle inclined surface inclined at an inner side surface of the locking ring seating portion and having an end portion of a grip ring in contact with the tube; A grip portion extending from the one end of the locking ring seating portion in the inserting direction of the tube and contacting the outer surface of the tube by deformation; And a groove that is recessed along the circumference of the inner circumferential surface of the grip portion to facilitate deformation of the grip ring.

Wherein the connection member is provided with a rubber-ring-shaped coupling confirmation member penetrating by the coupling member, and the end portion of the mating member is closely contacted to press the coupling confirmation member when the coupling member is completely engaged, And a check member accommodating portion formed stepwise so as to be accommodated.

Wherein the intermediate member is disposed between the connecting member and the mating member so that the pipe can be inserted therein, and when the connecting member is coupled with the mating member, the intermediate member presses the ferrule assembly to deform the end of the ferrule assembly .

The intermediate member includes an inclined portion formed to be inclined so that an inner diameter gradually becomes narrower at an open end where the tube is inserted; And an insertion portion extending at an end of the inclined portion so as to have an inner diameter narrower than an outer diameter of the tube, wherein an end of the ferrule assembly is moved to the insertion portion through the inclined portion in accordance with the coupling between the connection member and the partner. do.

According to the proposed invention, it is possible to obtain the effect of reducing the time and effort of the fitting operation due to the completion of the bidirectional fitting by one rotation action, reducing the cost due to the reduction of the number of parts, and improving the performance of leakage prevention by the solid sealing. In addition, there is an advantage that the operator can easily and accurately know whether or not the fitting is completed.

Further, it is possible to provide a ferrule assembly in which the locking ring and the ferrule are integrally formed with the pipe inserted into the connecting member, so that the ferrule can maintain a fixed position in the pipe inserted with the locking ring, The problem that the previously mounted position is changed or lost and lost can be solved.

In addition, not only airtightness between the pipe inserted by the O-ring and the connecting member is sealed but also the locking ring is supported, thereby preventing the pipe from being easily released or changing the position of the inserted pipe, There is an advantage to be able to do.

Further, as the connecting member is rotationally coupled, the grip portion of the ferrule is deformed in contact with the inclined portion to press the outer surface of the inserted tube, and the grip portion is deformed while being inserted into the insertion portion through the inclined portion. There is an advantage that the fixing of the ferrule and the pipe can be performed in a solid state.

1 is a perspective view in which a connector according to a first embodiment of the present invention is completely connected.
2 is an exploded perspective view of the connector;
3 is an exploded perspective view of the connector.
4 is an exploded perspective view to which the connector is connected.
5 is a perspective view of an O-ring which is a main constituent of the connector.
6 is a sectional view of the O-ring.
7 is an exploded perspective view of a ferrule assembly which is a main component of the connector.
8 is a cross-sectional view of the above-mentioned ferrule assembly.
9 is an exploded perspective view of the above-mentioned paralle assembly.
10 and 11 are sectional views showing the connection state of the connector.
12 is a perspective view showing a connector according to a second embodiment of the present invention.
13 is a cross-sectional view of the connector.
14 is a perspective view showing a connector according to a third embodiment of the present invention.
15 is a sectional view of the connector.
16 is a perspective view showing a connector according to a fourth embodiment of the present invention.
17 is a sectional view of the connector.
18 is a perspective view showing a connector according to a fifth embodiment of the present invention.
19 is a sectional view of the connector.
20 is a perspective view of a connector according to a sixth embodiment of the present invention
21 is a sectional view of the connector.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals even though they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

1 is a perspective view in which a connector according to a first embodiment of the present invention is completely connected. 2 is a perspective view of the connector.

As shown in the figure, the connector 1 according to the present embodiment includes a left connecting member 100 into which a left tube 10 is inserted, a right connecting member 200 into which a right tube 20 is inserted, And an intermediate member 300 inserted between the left linking member 100 and the right linking member 200 when the right tube 10 and the right tube 20 are coupled.

A part of the left linking member 100 is inserted inward through the inserted recessed portion 201 of the right linking member 200. [ When the left connecting member 100 and the right connecting member 200 are fully engaged with each other, the coupling confirmation member 106 is provided in the right coupling member 200, And is blocked by the end of the left connecting member 100 so that the coupling confirming member 106 is not exposed to the outside.

Accordingly, the operator can confirm whether or not the connection confirmation member is exposed, so that the complete connection state of the connector 1 can be visually recognized. As shown in FIG. 1, when the connector 1 is completely connected, the ends of the left and right connecting members 100 and 200 are brought into contact with each other, It is possible to confirm the accurate connection state.

The left O-ring 110 and the right O-ring 210, the left and right parallel assemblies 120 and 120, and the right and left parallel assemblies 220 and 220, which will be described in detail below, May be provided.

The left tube 10 and the right tube 20 may be formed of a material such as aluminum, copper, or copper, so that fluid can flow into the inside. The left tube 10 and the right tube 20 are configured to be inserted through the respective side surfaces of the left connecting member 100 and the right connecting member 200, respectively. A through member 150 through which the left and right tubes 10 and 20 pass is formed on each side of the left and right connection members 100 and 200. The left tube 10 and the right tube 20 are connected to the inside of the left connecting member 100 and the right connecting member 200 without substantial contact with the left connecting member 100 and the right connecting member 200, To be inserted.

The left connecting member 100, the right connecting member 200, the intermediate member 300, the left ferrule assembly 120, and the right ferrule assembly 220 are both provided in an empty hollow form , The left tube (10) and the right tube (20) are inserted into the empty space in the right and left side rooms. The intermediate member 300 is inserted into the left connecting member 100 and the right connecting member 200.

Hereinafter, the detailed configuration of the connector will be described in more detail.

3 is an exploded perspective view of the connector. 4 is an exploded perspective view to which the connector is connected.

As shown in the drawing, the left side connecting member 100 and the right side connecting member 200 are formed in a nut shape in which the outer side surfaces are connected to a plurality of planes. Therefore, when the left and right connection members 100 and 200 are completely coupled to each other, the ends of the left connection member 100 and the right connection member 200 are brought into contact with each other, And can be designed to be placed on the same plane.

The inside of the left connecting member 100 and the right connecting member 200 are formed so that the left tube 10 and the right tube 20 can be inserted. The penetrating member 150 is mounted on the outer surface of the left connecting member 100 and the right connecting member 200, respectively.

To this end, the left connecting member 100 and the right connecting member 200 are each formed with a penetrating member seating portion 160. The penetrating member seating portion 160 is formed on the left side surface of the left connecting member 100 and the right side surface of the right connecting member 200 and is formed into a shape recessed inwardly to receive the penetrating member 150 And is formed to be stepped in a corresponding shape so that the penetrating member 150 can be seated.

The penetrating member seating portion 160 may include a flange seating portion 161 and a receiving portion 162. The flange seating portion 161 is recessed inward from the outer side surfaces of the left connecting member 100 and the right connecting member 200 and is formed in a shape corresponding to the flange 151 of the penetrating member 150 . The receiving portion 162 is formed so that the insertion portion 152 of the penetrating member 150 can be received.

The recessed depth of the flange seating portion 161 is formed to be equal to or greater than the thickness of the flange portion 151 of the penetrating member 150 so that the penetrating member 150, Are formed so as not to protrude outward of the left connecting member 100 and outside the right connecting member 200. That is, when the penetrating member 150 is mounted, the penetrating member 150 does not protrude outward, but is positioned inside the left linking member 100 and the right linking member 200, .

The receiving portion 162 is formed in a shape corresponding to the insertion portion of the penetrating member 150 and may be formed longer than the length of the insertion portion 152. The left tube 10 and the right tube 20 inserted through the penetrating member 150 are supported by the penetrating member 150 so that the left connecting member 100 and the right connecting member 200, And the left tube 10 and the right tube 20 inserted into the left connecting member 100 and the right connecting member 200 are inserted into the left side parallel assembly 120 and the right side tube 100, And is supported by the right-side ferrule assembly 220. The penetrating member 150 may be formed of synthetic resin such as Teflon, nylon, or polycarbonate.

The penetrating member 150 is mounted on the penetrating member seating portion 160 and is press-fit into the penetrating member seating portion 160. Accordingly, the penetrating member 150 can be press-fitted into the penetrating member seating portion 160 and can be fixed to the left connection 10 and the right connection 20 during the insertion operation of the left tube 10 and the right tube 20, It is possible to maintain the state where the member 100 and the right connecting member 200 are firmly fixed to each other.

The penetrating member 150 may include a flange 151 having one end extended outward and an inserting portion 152 extending from the inner end of the flange 151. [ The flange portion 151 is formed in a shape corresponding to the flange seating portion 161 so as to be seated on the flange seating portion 161. The insertion portion 152 is formed so as to be inserted into the receiving portion 162. At this time, the length of the inserting portion 152 may be shorter than the length of the receiving portion 162. Therefore, it is possible to provide a space that can stably provide the insertion portion even when the penetrating member 150 is press-fitted.

A protrusion 101 is provided on the right end of the left connection member 100 and inserted into the right connection part 202 opened to the right connection member 200. The right fastening portion 202 is provided with a thread and the outer side surface of the protruding portion 101 is provided with a left fastening portion 102 which can be threaded to be fastened to the right fastening portion 202.

When the left linking member 100 and the right linking member 200 are rotated with respect to each other in a direction in which the threads of the left fastening unit 102 and the right fastening unit 202 are screwed together, The member 200 can move in a direction approaching each other. Thus, fitting can be completed by only a single operation of rotating the left linking member 100 and the right linking member 200 in the directions opposite to each other for the fitting of the connector, thereby reducing the labor of the operator, Can be expected to be improved.

The fastening structure of the left linking member 100 and the right linking member 200 is not limited to the structure shown in the embodiment. Any structure capable of performing a locking operation after the movement and movement between the left linking member 100 and the right linking member 200 can be applied as the fastening structure of the left linking member 100 and the right linking member 200 have. However, since the operator can conveniently perform the fastening operation only by rotating the left linking member 100 and the right linking member 200 in opposite directions, it is preferable that the worker is provided with threads in terms of improving work convenience something to do.

A left side intermediate member accommodating portion 103 and a right side intermediate member accommodating portion 203 are provided on the inner side of the left connecting member 100 and the right connecting member 200. The left mediating member receiving portion 103 and the right mediating member receiving portion 203 are spaces for receiving the mediating member 300 and include a left mediating member receiving portion 103 formed in the left connecting member 100, And a right side intermediate member receiving portion 203 formed on the right side connecting member 200. The left side intermediate member receiving portion 103 and the right side intermediate member receiving portion 203 receive the intermediate member 300 in the left side connecting member 100 and the right side connecting member 200, 100 and the right connecting member 200 can apply an external force toward the intermediate member 300. [

At least a part of the intermediate member 300 is inserted into the overlapping portion of the left connecting member 100 and the right connecting member 200 in the process of fitting the connector 1 (A portion forming the fastening portion 102 and the right fastening portion 202 of the right connecting member 200).

Of course, the fitting of the connector 1 is completed in the same manner. This is because the left linking member 100 and the right linking member 200 must apply an external force to the intermediate member 300 in the process of fastening the left linking member 100 and the right linking member 200 to be. A portion of the intermediate member 300 where the end portions of the left tube 10 and the right tube 20 are positioned may be located inside the left connection member 100 or the right connection member 200.

The left side connecting member 100 and the right side connecting member 200 are provided with a left side O-ring seating portion 104 and a right O-ring seating portion 104 on which the left O-ring 110 and the right O- (204) are formed. The left o-ring seating part 104 and the right o-ring seating part 204 are respectively formed with a left o-ring seating part 104 and a right o-ring seating part formed inside the left connection member 100 and the right connection member 200, respectively 204). The left O-ring seating part 104 and the right O-ring seating part 204 are formed so as to be stepped or rounded to correspond to the outer shape of the left O-ring 110 and the right O-ring 210, The O-ring 210 is formed so as to be in close contact with the inside of the left connecting member 100 and the right connecting member 200.

The left paralle assembly 120 and the right paralle receiving portion 203 are disposed between the left oar seating portion 104 and the left and right intermediate member receiving portions 103 and 203 and the right o- A left side parallel housing receiving portion 105 and a right side parallel housing receiving portion 205 where the parallel assembly 220 is located are formed. The left and right parallel assembly receiving portions 105 and 205 may be formed in the left connecting member 100 and the right connecting member 200, respectively.

The left paralystial receiving portion 105 and the right paralleal receiving portion 205 are disposed in the left oar receiving portion 104 and the right oar receiving portion 204 and the left and right intermediate member receiving portions 103, And may be formed to have an inner diameter corresponding to the outer diameter of the left and right paralle assemblies 120 and 220 to be described in detail below.

Therefore, when the direction in which the left tube 10 and the right tube 20 are inserted is referred to as the outer side, the left o-ring seating portion 104, the right o-ring seating portion 204, The right side intermediate member receiving portion 103 and the right side intermediate member receiving portion 203 may be formed in order.

On the other hand, the confirmation member receiving portion 206 is formed at the open end of the right connection member 200. The confirmation member accommodating portion 206 may be formed in a stepped or rounded shape so that the engagement confirmation member 106 mounted on the left connection member 100 can be received.

The coupling confirmation member 106 is formed in a rubber ring shape and may be positioned at the protrusion 101 of the left connection member 100. The coupling confirmation member 106 may be formed in a color other than black, for example, red to improve visibility.

Therefore, the coupling confirmation member 106 is exposed to the outside until the coupling by the rotation of the left coupling member 100 and the coupling of the right coupling member 200 is completed, do. When the left connecting member 100 and the right connecting member 200 are fully engaged, the coupling confirming member 106 is inserted into the inside of the confirming member receiving portion 206, 106 are not exposed. At this time, the end of the confirmation member accommodating portion 206 is in contact with the protruding portion of the left connection member 100 so that the left connection member 100 and the right connection member 200 are completely in contact with each other .

One side of the left connecting member 100 on which the coupling confirming member 106 is mounted is stepped and a part of the left connecting member 100 on which the coupling confirming member 106 is mounted is connected to the right connecting And can be inserted and screwed into the inside of the member (200). The stepped portion of the left connecting member 100 forms a left stopping portion 107. The left stopping portion 107 is configured to contact the left end of the right connection member 200, that is, the right stopping portion 207 corresponding to the end portion where the confirmation member accommodating portion 206 is formed.

That is, when the left connecting member 100 and the right connecting member 200 are completely fastened, the left stopping portion 107 and the right stopping portion 207 are in contact with each other, The fastening of the member 200 does not proceed and thus the deformation of the ferrule 140 by the intermediate member 300 is not further advanced. At this time, the point where the left stopping portion 107 contacts the right stopping portion 207 is that the left tube 10 and the right tube 20 are connected to the left intermediate member 300 and the right intermediate member 300 So that a sufficient flow rate can be ensured by preventing the paralle 140 from being excessively deformed.

Meanwhile, the intermediate member 300 may be formed into a tube shape that can be inserted into the left side intermediate member receiving portion 103 and the right side intermediate member receiving portion 203. A sealing portion 310 is formed at a substantially central portion of the inner surface of the intermediate member 300 so as to protrude from the end portion of the left tube 10 and the right tube 20 to be inserted.

When the left tube 10 and the right tube 20 are inserted into the sealing part 310, they are press-fitted into the ends of the left tube 10 and the right tube 20, (311 in Fig. 10) capable of sealing between the intermediate member 20 and the intermediate member 300 are formed. The sealing protrusion 311 is formed on the left and right sides of the sealing part 310 and may be formed to correspond to the sectional shapes of the left tube 10 and the right tube 20. [

At both ends of the intermediate member 300, an inclined portion 320 and a parallel insertion portion 330 are formed. The inclined portion 320 is tapered so that the inner diameter of the intermediate member 300 decreases toward the inner side from both ends of the intermediate member 300. The parallel insertion portion 330 is formed at an end portion of the tapered inclined portion 320 and extends to an inner diameter equal to the inner diameter of the end portion of the inclined portion 320.

A tube insertion portion 340 having an inner diameter corresponding to the inner diameters of the left tube 10 and the right tube 20 is formed from the parallel insertion portion 330 to the sealing portion 310. The parallel insertion portion 330 is formed to be larger than the inner diameter of the tube insertion portion 340 and smaller than the outer diameters of the left and right ferrule assemblies 120 and 220.

The ends of the left and right ferrule assemblies 120 and 220 start to contact the sloped portions 320 and the ferrule inserts 220 and 220 move in the left and right directions, And is inserted into the inside of the portion 330. The ends of the left and right parallel assemblies 120 and 220 are deformed by the pressure applied by the intermediate member 300 to press the outer circumferential surfaces of the left and right tubes 10 and 20, The tube 10 and the right tube 20 can be pressed and sealed.

On the other hand, the left O-ring 110 and the right O-ring 210 are mounted on the left O-ring seating part 104 and the right O-ring seating part 204, respectively. The left O-ring 110 and the right O-ring 210 are disposed in a space between the left tube 10 and the left connecting member 100 and a space between the left tube 10 and the right connecting member 100, when the left connecting member 100 and the right connecting member 200 are coupled. (Not shown) for supporting the left and right paralle assembly 120 and the right and left paralle assembly 220 by pushing the space between the left and right side connecting members 20 and 200, .

5 is a perspective view of an O-ring which is a main constituent of the connector. 6 is a sectional view of the O-ring.

The left o-ring 110 and the right o-ring 210 are mounted on the left o-ring seating portion 104 of the left connecting member 100, Only the left O-ring 110 will be described.

Referring to FIGS. 5 and 6, the left O-ring 110 is formed to have an opening 113 formed at a central portion thereof and to be penetrated by the left tube 10. At this time, the opening 113 is formed to have a size corresponding to the outer diameter of the left tube 10, and the left tube 10 can be closely attached to the opening 113 of the left O-ring 110.

The left O-ring 110 may include a central portion 111 protruding in a circumferential direction and a side protruding portion 112 protruded from left and right sides of the central portion 111. The central portion 111 and the lateral protrusion 112 are formed in a round shape and can be seated on the left o-ring seating portion 104.

Meanwhile, the left O-ring 110 is pressed when the left connecting member 100 and the right connecting member 200 are coupled with each other while the left O-ring 110 is seated in the left O-ring seating portion 104, 10 and the left connecting member 100 to air tightly.

Particularly, the lateral protrusion 112 can be inserted into the space between the left connection member 100 and the left tube 10 when the left O-ring 110 is pressed to completely seal the inner protrusion 112, 112 can support the locking ring 130 of the left-side ferrule assembly 120.

The left O-ring 110 hermetically seals between the left connection member 100 and the left tube 10 when fitting the connector 1, thereby preventing foreign matter from entering the left tube 10 And the left connecting member 100 can be prevented from being corroded. In addition, the left O-ring 11 can support the locking ring 130 of the left-side ferrule assembly 120.

7 is an exploded perspective view of a ferrule assembly which is a main component of the connector. 8 is a cross-sectional view of the above-mentioned ferrule assembly. 9 is an exploded perspective view of the paralle assembly.

In this embodiment, the left and right ferrule assemblies 120 and 220 have the same shape and structure except for only the arrangement position, and therefore only the left ferrule assembly 120 will be described in this embodiment .

7 and 9, the left-side ferrule assembly 120 is pierced by the left-side tube 10, and is configured to press and fix the left-side tube 10 passing therethrough.

The left side parallel assembly 120 is configured such that a locking ring 130 and a paralle 140 are coupled to each other so that the left side parallel assembly 120 in a coupled state can be mounted inside the left side connection member 100 .

The left-side parallel assembly 100 is configured to be fixed without being detached from the left-side tube 10 in a state where the left-side tube 10 is disposed to pass through. That is, the locking ring 130 can maintain the state where the ferrule 140 is mounted on the left tube 10 inserted through the left side ferrule assembly 120.

In detail, the locking ring 130 may be formed in a ring shape of a metal material, and may include a ring mounting portion 131 and a tube restraining portion 132.

The ring mounting portion 131 may be formed along the outer circumference of the locking ring 130 and may be bent to surround the locking ring seating portion 142 of the ferrule 140. The ring mounting portion 131 is extended below the locking ring seating portion 142 in a state where the locking ring 130 is seated on the upper surface of the ferrule 140, The locking ring 130 can be integrally coupled with the ferrule 140 by wrapping the ring mounting portion 131 protruded inward from the lower end of the locking ring 130. [

The ring mounting portions 131 are continuously arranged so that a plurality of the ring mounting portions 131 are spaced apart from each other by a predetermined distance. The ring mounting portions 131 are bent so that the locking ring 130 can stably be seated and fixed to the locking ring seating portion 142.

A plurality of pipe restricting portions 132 are continuously formed at predetermined intervals in the form of plate-shaped protrusions along the inner circumference of the locking ring 130, and the left pipe 10, which penetrates the locking ring 130, As shown in Fig. The tube restricting portion 132 is bent so as to be inclined in a direction in which the left tube 10 is inserted and has a shape that becomes narrower toward the end of the tube restricting portion 132. The end of the pipe restricting part 132 may be formed to be sharp or may be inserted into the surface of the left pipe 10 from the outside when the pipe is in contact with the left pipe 10.

In the state where the locking ring 130 is engaged with the ferrule 140, the tube restricting portion 132 extends toward the inside of the ferrule 140. Therefore, the outer surface of the left tube 10 passing through the locking ring 130 and the ferrule 140 is brought into contact with the end of the tube restricting portion 132.

When the left tube 10 is inserted, the end of the tube restricting portion 132 comes into contact with the outer surface of the left tube 10. The pipe restricting portion 132 is formed of a material harder than the coating layer formed on the surface of the left tube 10 or the left tube 10 and inserted into the outer surface of the left tube 10 .

The locking ring 130 can be fixed to the left tube 10 and the left connecting member 100 in a state where the insertion of the left tube 10 is completed and the locking ring 130 (I.e., the position of the left-side ferrule assembly 120). The left O-ring 110 supports the locking ring 130 when fitting the connector 1 by the action of the left O-ring 110 located on the left side of the locking ring 130, The side projecting portion 112 of the O-ring 110 pushes the tube restraint portion 132 and supports it.

Meanwhile, when the connector 1 is fitted to the connector by the rotation of the left connecting member 100 and the right connecting member 200, the ferrule 140 presses the left tube 10, And is fixed by the left connecting member 100 so that the left tube 10 can be maintained in a fixed state without being detached.

The paralle 140 includes a grip portion 141 for pressing and fixing the left tube, a locking ring seating portion 142 on which the locking ring 130 is seated, and a ferrule inclined surface 142 on which the tube restricting portion 132 is located 143).

The grip portion 141 is in turn brought into contact with the inclined portion 320 and the parallel insertion portion 330 of the intermediate member 300 in the fitting process and deformed to reduce the outer diameter by the pressure applied by the intermediate member 300 . A circumferential groove 144 is formed on the inner circumferential surface of the grip portion 141. Therefore, when an external force is applied from outside the paralle 140, the grip portion 141 is easily deformed by the groove 144, so that the external surface of the left tube 10 can be pressed. Particularly, the range of the grip portion 141 that can be deformed by the groove 144 is set so that when the left connecting member 100 and the right connecting member 200 are fully engaged, So that the left tube 10 can be fixed and sealed within a range that does not hinder the fluid flow inside the left tube 10.

The locking ring seating part 142 forms an end of the ferrule 140 and may be formed in a stepped manner so that the ferrule 140 can be pushed by the O ring 110 during fitting. That is, the outer diameter of the locking ring seating portion 142 is formed to be larger than the outer diameter of the grip portion 141 and larger than the inner diameter of the entrance of the slanted portion 320 of the intermediate member 300.

The paralle slope 143 is formed on the inner surface of the locking ring seating portion 142. The paralle slope 143 may be inclined inward and may be inclined in a direction in which the tube restricting portion 132 of the locking ring 130 seated on the locking ring seating portion 142 is bent.

The paralle inclined surface 143 elastically deforms the tube restricting portion 132 by pushing the O-ring 110 when the left tube 10 is fitted with the paralle assembly 220 inserted therethrough, May be formed to have a greater slope than the slope of the tube restraint portion 132 so that the left-side ferrule assembly 120 can be moved.

When the locking ring 130 is mounted on the ferrule 140, the ring mounting portion 131 and the tube restricting portion 132, which are formed by bending, are inserted into the locking ring seating portion 142 of the ferrule 140, So that it can be coupled with the ferrule 140.

Hereinafter, the fitting process in the present embodiment having the above-described configuration will be described.

10 and 11 are sectional views showing the connection state of the connector.

10 and 11, the left O-ring 110 and the right O-ring 210, the left and right ferrule assemblies 120 and 120 and the right and left ferrule assemblies (not shown) are inserted into the left connecting member 100 and the right connecting member 200, 220). The penetrating member 150 is press-fitted into the penetrating member seating portion 160 formed in the left connection member 100 and the right connection member 200, respectively. The penetrating member 150 is inserted so as not to protrude outward from the left connecting member 100 and the right connecting member 200 and the outer side surfaces of the left connecting member 100 and the right connecting member 200, Or may be mounted somewhat in the form of being inserted into the left connecting member 100 and the right connecting member 200.

In this state, the left tube 10 and the right tube 20 are inserted through the penetration member 150 mounted to the left connection member 100 and the right connection member 200, respectively. At this time, the left tube 10 and the right tube 20 can be inserted by a predetermined depth and are inserted using a jig or a device for guiding the insertion.

When the left and right pipes 10 and 20 are inserted, the left pipe 10 and the right pipe 20 are connected to the left and right o-rings 110 and 210, And the right-side ferrule assembly 220, as shown in Fig.

When the left and right tubes 10 and 20 are completely inserted, the positions of the left and right tubes 10 and 20 can be fixed by the ferrule assemblies 120 and 220, The left and right connection members 100 and 200 may be supported by the penetrating member 150 and the ferrule assemblies 120 and 220 so as not to contact the inner surfaces of the left and right connection members 100 and 200. [ Of course, portions of the inner side surfaces of the left connection member 100 and the right connection member 200 that support the left O-ring 110 and the right O-ring 210 are protruded to connect the left tube 10 and the right tube 20, But the contact area can be minimized, resulting in a substantially non-contact state.

At this time, the left O-ring 110 is hermetically sealed between the left connection member 100 and the left tube 10, and at the same time, supports the left-side ferrule assembly 120. The right O-ring 210 is hermetically sealed between the right connection member 200 and the right tube 20 and supports the right ferrule assembly 220.

 The locking ring 130 constituting the left and right parallel ferrule assemblies 120 and 220 digs into the surfaces of the left tube 10 and the right tube 20, 120 and the right-side ferrule assembly 220 can be fixed.

After the insertion of the left tube 10 and the right tube 20 is completed, the left connecting member 100 and the right connecting member 200 are connected to each other. At this time, the intermediate member 300 is received in the left and right connection members 100 and 200.

10, the end of the grip portion 141 of the left-side parallel assembly 120 is connected to the entrance side of the slope portion 320 at an initial stage in which the left and right connection members 100 and 200 are coupled to each other, And the end portions of the left tube 10 and the right tube 20 are in contact with the sealing protrusions 311 of the sealing portion 310. Then, the coupling confirmation member 106 is exposed to the outside, and the user confirms that the fitting of the connector 1 is not completely completed.

In this state, the left linking member 100 and the right linking member 200 are further rotated so that the left linking member 100 and the right linking member 200 are moved toward each other.

As the left linking member 100 and the right linking member 200 approach each other, the left O-ring 110 pushes the left-side ferrule assembly 120 toward the intermediate member 300. The end of the grip portion 141 is in contact with the inclined portion 320 of the intermediate member 300 so that the intermediate member 300 moves toward the intermediate member 300, So as to start deforming the left tube 10.

The left tube 10 may be tougher than the left side ferrule 120 to allow the left side ferrule 120 to pierce the left tube 10. As described above, the intermediate member 300 is formed with the inclined portion 320 on both sides of the intermediate member 300 and the groove 144 is formed on the inner circumferential surface of the grip portion 141 in order to facilitate the padding action.

The grip portion 141 is pushed toward the center of the left tube 10 along the inclined direction of the slope portion 320 when the grip portion 141 is pushed inward in a state in which the grip portion 141 is in contact with the slanted portion 320 of the intermediate member 300 And a portion of the left tube 10 that is in contact with the distal end of the grip portion 141 is contracted inward. That is, by the contraction of the left tube 10, the grip portion 141 performs the function of gripping the left tube 10.

The end of the grip portion 141 moves to the inside of the parallel insertion portion 330 through the inclined portion 320 as the left side parallel assembly 120 is further moved toward the intermediate member 300 . The grip portion 141 is inserted through the inclined portion 320 between the inner side of the parallel insertion portion 330 and the outer side of the left side tube 10 from the inside of the parallel insertion portion 330 It becomes a fixable state.

The shrinking action of the left tube 10 is continuously performed until the left stopping portion 107 of the left connecting member 100 and the right stopping portion 207 of the right connecting member 200 are in contact with each other . When the left stopping part 107 of the left connecting member 100 and the right stopping part 207 of the right connecting member 200 are in contact with each other, the left and right paralle assemblies 120, The relative movement with the intermediate member 300 is terminated.

In this case, the inclined portion 320 of the intermediate member 300 can no longer press the grip portion 141, and the grip portion 141 is prevented from being further deformed. If the grip portion 141 is excessively deformed, the left tube 10 may be excessively deformed to reduce the inner diameter thereof, thereby reducing the flow rate of the fluid inside the tube. Therefore, the left and right connection members 100 and 200 are brought into contact with each other to prevent the intermediate member 300 from further moving, thereby preventing damage to the left and right pipes 10 and 20 And at the same time, the decrease in the flow rate of the fluid flowing along the inside while maintaining the fixation of the left tube 10 and the right tube 20 can be minimized. The left and right parallel assemblies 120 and 220 may be deformed at the same time by rotating the left linking member 100 or the right linking member 200, The tube 10 and the right tube 20 can be fixed at the same time.

That is, according to the present embodiment, when the left stopping portion 107 of the left connecting member 100 and the right stopping portion 207 of the right connecting member 200 are in contact with each other, The deformation amount of the grip portion 141 can be kept constant by the groove 144 formed in the grip portion 141 and excessive deformation of the left tube 10 can be prevented.

As a result of the deforming action of the left tube 10, the contact portion of the left side parallel tube assembly 120 and the left tube 10 can be completely sealed while maintaining a proper flow rate.

Of course, the right ferrule assembly 220 also has the same function as the left ferrule assembly 120, and a detailed description thereof will be omitted in order to avoid redundant description.

1 and 11, in a state where the left and right connection members 100 and 200 are rotated so as to come into complete contact with each other to complete the fitting connection, So that the member 106 can be completely covered by the right connecting member 200. Therefore, depending on whether or not the right connection member 200 is exposed to the outside, the left connection member 100 and the right connection member 200 are contacted with each other, thereby confirming whether the fitting is completed.

The ends of the left connecting member 100 and the right connecting member 200 are completely in close contact with each other and can not be rotated in a direction to come closer to each other, so that the left tube 10 and the right tube 20 are further deformed Thereby preventing the flow rate from being lost.

The left linking member 100 and the right linking member 200 are in close contact with each other while the left linking member 100 and the right linking member 200 are fully connected, The respective nut-shaped planes of the member 200 are also positioned on the same plane, so that they can have a sense of unity in a completely combined state as a whole, and an accurate coupling state can be visually confirmed.

When the fitting of the connector 1 is completed, the end portions of the left tube 10 and the right tube 20 come into contact with the sealing portion 310. At this time, the sealing projection 311 is press-fitted into the ends of the left tube 10 and the right tube 20 so that the left tube 10 and the right tube 20 are completely sealed. The left and right paralle 140 and the left and right pipes 10 and 20 are sealed to each other by the deformation of the end portion of the grip portion 141 of the paralle 140, The right tube 20 can be fixed so as not to be separated from the left linking member 100 and the right linking member 200.

The grip portion 141 of the paralle 140 is deformed to pass through the inclined portion 320 and presses the left tube 10 and the right tube 20 and is inserted into the inside of the parallel insertion portion 330 The ferrule 140 is pressed by the intermediate member 300 so that the left and right ferrule assemblies 120 and 220 maintain a more stable fixed state.

The left O-ring 110 and the right O-ring 210 are hermetically sealed between the left connecting member 100 and the right connecting member 200 and between the left and right pipes 10 and 20.

It should be noted that the present invention is not limited to the above-described embodiments, and various other embodiments may be possible.

The second embodiment of the present invention is characterized by providing a connector that can be fitted with a different outer diameter of the left tube and the right tube.

The second embodiment of the present invention differs from the first embodiment in the left connecting member, the right connecting member, and the intermediate member, and the other components are the same, and thus the same reference numerals are used for the same components, .

12 is a perspective view showing a connector according to a second embodiment of the present invention. 13 is a sectional view of the connector.

12 and 13, the connector 2 according to the second embodiment of the present invention includes a left connecting member 400 and a right connecting member 200 disposed on both left and right sides, 400 and the right connecting member 200 are inserted in the left and right side chambers 30 and the right tube 20 inward.

The left tube 30 and the right tube 20 have different outer diameters and the inner diameter of the left connecting member 400 and the right connecting member 200 inserted thereinto and the size of the structure provided inside the right tube 200 are also corresponding to each other . That is, the left connection member 400 and the right connection member 200 have the same internal structure but different sizes according to the outer diameters of the inserted right and left pipes 30 and 20 .

A penetrating member 150 is mounted on both left and right sides of the left connecting member 400 and the right connecting member 200 and a penetrating member seating portion 160 for mounting the penetrating member 150 is formed. The basic structure of the penetrating member 150 and the penetrating member seating unit 160 is the same as that of the above-described embodiment, and will be briefly described using the same reference numerals. The structure of the penetrating members 150 provided on both sides of the left and right sides will be the same except for the size thereof.

The penetrating member 150 separates the left connecting member 400 and the right connecting member 200 from the left tube 30 and the right tube 20. The penetrating member 150 has a hole formed at its center so that the left tube 30 and the right tube 20 can penetrate through the left tube 30 and the right tube 20, 20 so as to be in close contact with each other.

The penetrating member 150 has a flange portion 151 bent at a portion exposed to the outside and an insertion portion 152 inserted into the left connection member 400 and the right connection member 200, .

The penetrating member seating part 160 is formed on the opened left and right sides of the left connecting member 400 and the right connecting member 200 and the flange 151 and the inserting part 152 A flange seating portion 161 having a shape corresponding to the flange seating portion 161, and a receiving portion 162. At this time, the penetration member seating portion 160 may have the same or slightly smaller inner diameter as the penetration member 150 so that the penetration member 150 can be press-fitted.

The penetrating member 150 may be formed so as not to protrude outwardly from the left linking member 400 and the right linking member 200 when the penetrating member 150 is mounted on the penetrating member seating unit 160. The receiving portion 162 of the penetrating member seating portion 160 is longer than the length of the inserting portion 152 so that the penetrating member 150 is stably received when the penetrating member 150 is press- .

On the other hand, a left side confirmation member receiving portion 406 is formed on the inner side of the left side connection member 400 so as to be stepped at an opening and selectively masking the left side coupling confirmation member 540 described below. A left threaded portion 402 is formed on the inner side of the left side confirmation member receiving portion 406 and a left side threaded portion 402 is formed on the innermost side of the left side coupling member 400, A portion 404 is formed.

The configuration of the left O-ring 410 and the left-side ferrule assembly 420 is completely the same as that of the first embodiment described above, and thus a detailed description thereof will be omitted.

The right connection member 200 has the same structure as that of the left connection member 400 except that the right side O ring 210 and the right side ferrule 220 are provided.

Meanwhile, an intermediate member 500 may be provided between the left linking member 400 and the right linking member 200. The intermediate member 500 may include the left insertion portion 510 and the right insertion portion 520 and a support portion 530 between the left insertion portion 510 and the right insertion portion 520.

The left inserting part 510 and the right inserting part 520 are inserted into the left connecting member 400 and the right connecting member 200 so as to be inserted into the inside of the left connecting member 400 and the right connecting member 200, 200, respectively. The left inserting part 510 and the right inserting part 520 are formed by the left fastening part 511 and the right fastening part 511 formed with threads on the inner side surfaces of the left connecting member 400 and the right connecting member 200, 521). Therefore, when the left linking member 400 and the right linking member 200 are rotated, the left linking member 400 and the right linking member 200 are moved in the direction of approaching each other, .

The support portion 530 has a shape protruding outward along the circumference at the center of the intermediate member 500. When the left connection member 400 and the right connection member 200 are fully engaged, And the end portions of the right linking member 200. [

Left and right coupling confirmation members 540 and 550 are provided on the left and right sides of the support unit 530, respectively. Therefore, the user can confirm that the fitting is completely performed in accordance with whether the left coupling confirmation member 540 and the right coupling confirmation member 550 are identified when the left coupling member 400 and the right coupling member 200 are threaded .

An inclined portion 560 is formed at the open end of the left insertion portion 510 and the right insertion portion 520 and an insertion portion 570 is formed at the end of the inclined portion 560. Therefore, when fitting is performed in a state where the left tube 30 and the right tube 20 are inserted, the grip portion 141 is deformed by the inclined portion 560 and the insertion portion 570, (30) and the right tube (20).

The present invention may be embodied in many other forms without departing from the spirit or scope of the appended claims.

A third embodiment of the present invention is characterized in that the connector into which the pipe is inserted is connected to the valve.

In the third embodiment of the present invention, the right connecting member is fastened to the connecting portion of the valve instead of the left connecting member and the intermediate member, and the other components are the same except for the left connecting member and the intermediate member. And a detailed description thereof will be omitted.

14 is a perspective view showing a connector according to a third embodiment of the present invention. 15 is a sectional view of the connector.

14 and 15, the connector 3 according to the third embodiment of the present invention is configured to be fastened to the valve 600. As shown in FIG. The valve 600 is a device for distributing / supplementing / discharging fluid. A case in which the pipe 20 is connected to one of the connecting pipes of the valve 600 will be described as an example and a service valve used in the air conditioner will be described as an example. It is to be noted that the present embodiment is not limited to this kind of valve but is applicable to all valves to which the connector 3 according to the present embodiment can be connected.

The valve 600 is formed with a connecting portion 601 having a structure corresponding to the structure of the left connecting member (100 in Fig. 2) and the intermediate member (300 in Fig. 2) in the first embodiment of the present invention. The connection portion 601 is formed with a support portion 610 protruding outwardly and a coupling portion 620 formed with a thread. A coupling confirmation member 630 is formed at an edge adjacent to the support portion 610 and the coupling portion 620.

A sealing portion 640 is formed at an inner side of the connection portion 601 to closely contact the end of the pipe to be inserted and an inclined portion 650 is formed at an opened end face of the connection portion 601. An insertion portion 660 is formed at the end of the inclined portion 650.

The connection member 200 is coupled to the valve 600. The connection member 200 has the same structure as that of the right connection member 200 of the first embodiment described above and includes a ferrule assembly 220 and an O-ring 210, And may be fixed in a state of being inserted into the connecting member 200.

The penetrating member seating portion 160 on which the penetrating member 150 through which the tube 20 passes is provided on the right side of the opening of the connecting member 200. The penetrating member 150 and the penetrating member seating portion 160 have the same structure as the above-described embodiment.

The penetrating member 150 separates the connecting member 200 and the tube 20 from each other. The penetrating member 150 has a flange portion 151 bent at a portion exposed to the outside and an insertion portion 152 inserted into the connection member 200 is formed.

The penetrating member seating portion 160 is formed on the right side of the opening of the connecting member 200 and has a flange seating portion 161 having a shape corresponding to the flange portion 151 and the insertion portion 152, And a receiving portion 162. At this time, the penetration member seating portion 160 may have the same or slightly smaller inner diameter as the penetration member 150 so that the penetration member 150 can be press-fitted.

The penetrating member 150 may be formed so as not to protrude outward from the connecting member 200 when the penetrating member 150 is mounted on the penetrating member seating unit 160. The receiving portion 162 of the penetrating member seating portion 160 is longer than the length of the inserting portion 152 so that the penetrating member 150 is stably received when the penetrating member 150 is press- .

The user inserts the coupling member 200 into the coupling portion 620 of the valve 600 while the tube 20 is inserted to a predetermined depth. When the connecting member 200 is completely fastened, the checking member receiving portion 206 at the end of the connecting member 200 covers the coupling confirming member 630 so that the user can check the state of the fitting.

The O-ring 210 is hermetically sealed between the connecting member 200 and the tube 20, and the paralle 140 fixed by the locking ring 130 has an end portion of the grip portion 141, The tube 20 is deformed while being deformed by pushing the outer surface of the tube 20 and the tube 20 is fixed in a state of being hermetically sealed inside the connection portion 601 .

The present invention may be embodied in many other forms without departing from the spirit or scope of the appended claims.

The fourth embodiment of the present invention is characterized in that the connection member is fastened to the connection pipe to which the first pipe is connected.

The fourth embodiment of the present invention has a structure in which a connection member is fastened to a connection portion of a connection pipe instead of a left connection member and an intermediate member, and other configurations are the same except for the left connection member and the intermediate member. And a detailed description thereof will be omitted.

16 is a perspective view of a connector according to a fourth embodiment of the present invention. 17 is a sectional view of the connector.

16 and 17, the connector 4 according to the fourth embodiment of the present invention is constituted by a reflux pipe re-pipe connected to the first pipe 701, and a connecting member 200 fastened to the expanded pipe connecting member .

A first insertion portion 702 into which the first tube 701 is inserted is formed inside the expanding connection member 700. At this time, the first pipe (701) is formed with an inclined surface (704) at an end thereof so as to be connected to another pipe of an expanding type. A thread 703 corresponding to the thread 760 formed on the inner circumferential surface of the first insertion portion 702 is formed on the outer circumferential surface of the first tube 701. Therefore, the expanded pipe connecting member 700 can be rotated and coupled to the first pipe 701 in a screwed manner.

A sealing member 705 is provided between the inclined surface 704 facing each other and the inner surface of the first insertion portion 702. The sealing member 705 is made of a metal material and is made of a material that is softer than the first tube 701 and the expanded connection member 700 so that the first tube 701, The inclined surface 704 of the first inserting portion 701 and the inner surface of the first inserting portion 702 are brought into close contact with the sealing member 705 to be hermetically sealed.

Meanwhile, the first pipe 701 may be formed of a pipe that can be connected to another pipe of an expanded pipe type, or may have a configuration of a valve formed in a corresponding shape if necessary.

A connection portion 750 is formed at a position facing the first insertion portion 702 to be coupled with the connection member 200. At this time, the shape of the connection portion 750, which is coupled to the outside of the expanding connection member, particularly, the connection member 200 is the same as that of the connection portion (600 in FIG. 15) of the third embodiment.

That is, the second tube 20 inserted in the connecting member 200 is accommodated in a position facing the first insertion portion 702 in which the first tube 701 is inserted, A connecting portion 750 is formed. The coupling portion 750 has a threaded coupling portion 720 formed on an outer surface thereof to be screwed with the coupling member 200. A support portion 710 protruding in a stepped manner is formed at an end of the coupling portion 720 and a coupling confirmation member 730 is provided between the support portion 710 and the coupling portion 720.

A sealing portion 740 is formed at an inner side of the connection portion 750 to closely contact an end of the second tube 20 inserted into the connection portion 750 and an inclined portion 650 is formed at an opened end face of the connection portion 750 . An insertion portion 660 is formed at the end of the inclined portion 650.

The connection member 200 is coupled to the expanding connection member. The connection member 200 has the same structure as that of the connection member 200 of the third embodiment described above and includes a ferrule assembly 220 and an O-ring 210, The position can be fixed in a state where it is inserted into the member 200.

The penetrating member seating portion 160 on which the penetrating member 150 through which the tube 20 passes is provided on the right side of the opening of the connecting member 200. The penetrating member 150 and the penetrating member seating portion 160 have the same structure as the above-described embodiment.

The penetrating member 150 separates the connecting member 200 and the tube 20 from each other. The penetrating member 150 has a flange portion 151 bent at a portion exposed to the outside and an insertion portion 152 inserted into the connection member 200 is formed.

The penetrating member seating portion 160 is formed on the right side of the opening of the connecting member 200 and has a flange seating portion 161 having a shape corresponding to the flange portion 151 and the insertion portion 152, And a receiving portion 162. At this time, the penetration member seating portion 160 may have the same or slightly smaller inner diameter as the penetration member 150 so that the penetration member 150 can be press-fitted.

The penetrating member 150 may be formed so as not to protrude outward from the connecting member 200 when the penetrating member 150 is mounted on the penetrating member seating unit 160. The receiving portion 162 of the penetrating member seating portion 160 is longer than the length of the inserting portion 152 so that the penetrating member 150 is stably received when the penetrating member 150 is press- .

In a state where the second tube 20 is inserted to a predetermined depth, the user screws the coupling member 200 to the coupling portion 720. When the connecting member 200 is completely fastened, the checking member receiving portion 206 at the end of the connecting member 200 covers the coupling confirming member 730 so that the user can check the state of the fitting.

The O-ring 210 is hermetically sealed between the connecting member 200 and the second tube 20, and the paralle 240 fixed by the locking ring 230 has an end portion of the grip portion 241 The second tube 20 is deformed while being moved along the inclined portion 650 and the insertion portion 660 so that the second tube 20 is deformed by pressing the outer surface of the second tube 20, So that it can be fixed in an airtight state.

The present invention may be embodied in many other forms without departing from the spirit or scope of the appended claims.

A fifth embodiment of the present invention is characterized in that fitting is performed by fastening a pair of connecting members, in which first and second pipes are inserted, to an elbow-type connecting pipe.

The fifth embodiment of the present invention has a structure in which the connection members are fastened to a pair of connection portions formed on the connection pipe instead of the left connection member and the intermediate member, and other configurations are the same except for the left connection member and the intermediate member. And the detailed description thereof will be omitted.

18 is a perspective view showing a connector according to a fifth embodiment of the present invention. 19 is a sectional view of the connector.

The connector 5 according to the fifth embodiment of the present invention includes an elbow-shaped connecting pipe 800 and a first connecting member 200 and a second connecting member 803 fastened to the connecting pipe 800 .

The connection pipe 800 may be an elbow pipe, but it is to be understood that the shape of the connection pipe 800 is not limited in the present embodiment.

A first connection part 801 and a second connection part 802 are formed on both sides of the connection pipe 800. The first connection part 801 and the second connection part 802 are respectively connected to a first pipe 20, The first and second connection members 200 and 803 having the second pipe 40 inserted therein are fastened to each other.

The first connection unit 801 and the second connection unit 802 and the first connection unit 200 and the second connection unit 803 differ only in their positions and have the same structure and shape. The configuration of the second connection unit 802 and the configuration of the second connection unit 803 is the same as that of the first connection unit 801, And the first connecting member 200 are the same.

A first coupling part 820 having a thread for screwing with the first coupling member 200 is formed on an outer surface of the first coupling part 801. A first support portion 810 protruding in a stepped manner is formed at the end of the first coupling portion 820. A first coupling confirmation portion 810 is formed between the first support portion 810 and the first coupling portion 820, (830) are formed.

A first sealing part 840 is formed at an inner side of the first connection part 801 and a first sealing part 840 is attached to an end of the first tube 20 inserted into the first connection part 801. In an end surface of the first connection part 820, (850) is formed. An insertion portion 860 is formed at an end of the inclined portion 850.

The first connection member 200 is coupled to the first connection unit 801 of the connection pipe 800. The first connection member 200 has the same structure as that of the connection member of the third embodiment described above and includes a ferrule assembly 220 and an O-ring 210 inside the first connection member 200, The position can be fixed in a state of being inserted into the connecting member 200.

A penetrating member 150 on which the penetrating member 150 through which the first tube 20 and the second tube 40 are inserted is seated on the opened surfaces of the first connecting member 200 and the second connecting member 803, The seating portion 160 is formed. The penetrating member 150 and the penetrating member seating portion 160 have the same structure as the above-described embodiment.

The penetrating member 150 separates the first connecting member 200 and the second connecting member 803 from the first tube 20 and the second tube 40. The penetrating member 150 has a flange portion 151 bent at a portion exposed to the outside and an insertion portion 152 inserted into the connection member 200 is formed.

The penetrating member seating portion 160 is formed on each of the open surfaces of the first and second connection members 200 and 803 and corresponds to the flange portion 151 and the insertion portion 152 And a receiving portion 162. The flange receiving portion 161 has a flange receiving portion 161, At this time, the penetration member seating portion 160 may have the same or slightly smaller inner diameter as the penetration member 150 so that the penetration member 150 can be press-fitted.

The penetrating member 150 may be formed so as not to protrude outward from the first connection member 200 and the second connection member 803 when the penetrating member 150 is mounted on the penetrating member seating portion 160. The receiving portion 162 of the penetrating member seating portion 160 is longer than the length of the inserting portion 152 so that the penetrating member 150 is stably received when the penetrating member 150 is press- .

In a state where the first tube 20 is inserted to a predetermined depth, the user screws the first connection member 200 to the first connection portion 820. When the first connection member 200 is completely fastened, the first confirmation member receiving portion 206 of the end of the first connection member 200 covers the first connection confirmation member 830, The state can be confirmed.

The O-ring 210 is hermetically sealed between the first connection member 200 and the first pipe 20 and the ferrule 240 fixed by the locking ring 230 is hermetically sealed between the first connection member 200 and the first pipe 20, The end portion deforms while being moved along the inclined portion 850 and the insertion portion 860 to be deformed by pushing the outer surface of the first tube 20 and the first tube 20 is deformed by the first connection portion 801 in the airtight state.

Meanwhile, a second tube 40 is inserted into the second connection member 803, and an O-ring and a ferrule assembly are provided inside. The second connection member 803 has the same structure as that of the first connection member 200 and can be fitted to the second connection portion 802 in the same manner.

The present invention may be embodied in many other forms without departing from the spirit or scope of the appended claims.

The sixth embodiment of the present invention is characterized in that a plurality of connecting members, into which a first pipe, a second pipe and a third pipe are inserted, are fastened to a connection pipe of a "T" shape.

The sixth embodiment of the present invention has a structure in which the connecting members are fastened to a plurality of connecting portions formed on the connecting pipe instead of the left connecting member and the intermediate member, and other configurations are the same except for the left connecting member and the intermediate member. And the detailed description thereof will be omitted.

20 is a perspective view showing a connector according to a sixth embodiment of the present invention. 21 is a sectional view of the connector.

The connector 6 according to the fifth embodiment of the present invention includes a connection pipe 900 having a T shape and a first connection member 200 and a second connection member 904 which are fastened to the connection pipe 900 And a second linking member 904.

The connection tube 900 may be a tube having a "T" shape, for example. However, the shape of the coupling tube 900 is not limited in the present embodiment.

A first connection portion 901, a second connection portion 902 and a third connection portion 903 are formed on both sides of the connection pipe 900. The first connection portion 901 and the second connection portion 902, The third connection part 903 is connected to the first connection part 200 and the second connection part 904 in which the first pipe 20, the second pipe 50 and the third pipe 60 are inserted, The member 905 is fastened and the fitting is made.

The first connecting portion 901, the second connecting portion 902 and the third connecting portion 903 and the first connecting member 200, the second connecting member 904 and the third connecting member 905 are formed only by the difference The structure of the first connection unit 901 and the structure of the first connection unit 200 will be described in order to avoid duplication of description and the structure of the second connection unit 902 and the second connection unit 902 will be described. It is to be noted that the configurations of the connecting member 904, the third connecting portion 903 and the third connecting member 905 are the same as those of the first connecting portion 901 and the first connecting member 200.

A first coupling part 920 having threads for screwing with the first coupling member 200 is formed on an outer surface of the first coupling part 901. A first support portion 910 protruding in a stepped manner is formed at the end of the first coupling portion 920. A first coupling confirmation portion 910 is formed between the first support portion 910 and the first coupling portion 920, (930).

A first sealing portion 940 is formed at an inner side of the first connection portion 901 and an end portion of the first tube 20 is inserted into the first sealing portion 940. An end surface of the first connection portion 920 is inclined A portion 950 is formed. An insertion portion 960 is formed at an end of the inclined portion 950.

The first connection member 200 is coupled to the first connection unit 901 of the connection pipe 900. The first connection member 200 has the same structure as that of the connection member of the third embodiment described above and includes a ferrule assembly 220 and an O-ring 210 inside the first connection member 200, The position can be fixed in a state of being inserted into the connecting member 200.

The first connection member 200 is screwed to the first coupling portion 920 while the first tube 20 is inserted to a predetermined depth. When the first connection member 200 is completely fastened, the first confirmation member receiving portion 906 of the end of the first connection member 200 covers the first connection confirmation member 930, The state can be confirmed.

The O-ring 210 is hermetically sealed between the first connection member 200 and the first pipe 20 and the ferrule 240 fixed by the locking ring 230 is hermetically sealed between the first connection member 200 and the first pipe 20, The end portion deforms while being moved along the inclined portion 950 and the insertion portion 960 to be deformed by pushing the outer surface of the first tube 20 and the first tube 20 is deformed by the first connection portion 901 in the airtight state.

A second tube 50 is inserted into the second connection member 904 and a third tube 60 is inserted into the third connection member 905. O-rings 210, (Not shown). The second linking member 904 and the third linking member 905 have the same structure as the first linking member 200 described above and have the same structure as the second linking unit 902 and the third linking unit 905. [ 903, respectively.

The first pipe 20, the second pipe 50, and the third pipe 905 are formed on the opened surfaces of the first, second, and third connecting members 200, 904, The penetrating member seating portion 160 on which the penetrating member 150 penetrating through is penetrated. The penetrating member 150 and the penetrating member seating portion 160 have the same structure as the above-described embodiment.

The penetrating member 150 may be formed of the first connecting member 200, the second connecting member 904 and the third connecting member 905 and the first pipe 20, the second pipe 50, (60) are spaced apart. The penetrating member 150 is formed with a flange portion 151 bent at a portion exposed to the outside and the first connecting member 200, the second connecting member 904, and the third connecting member 905, An inserting portion 152 is formed to be inserted into the inside of the inserting portion.

The penetrating member seating part 160 is formed on each of the opened surfaces of the first connecting member 200, the second connecting member 904 and the third connecting member 905, and the flange 151 and / A flange seating portion 161 having a shape corresponding to the insertion portion 152, and a receiving portion 162. At this time, the penetration member seating portion 160 may have the same or slightly smaller inner diameter as the penetration member 150 so that the penetration member 150 can be press-fitted.

The penetrating member 150 is not protruded to the outside of the first connecting member 200, the second connecting member 904 and the third connecting member 904 in a state where the penetrating member 150 is mounted on the penetrating member seating unit 160 . The receiving portion 162 of the penetrating member seating portion 160 is longer than the length of the inserting portion 152 so that the penetrating member 150 is stably received when the penetrating member 150 is press- .

In this specification, since the connecting members to which the pipes are connected are mutually coupled or the connecting members are coupled to other connecting pipes to which other pipes such as a valve, an elec- tric storage, a T-shaped pipe and the like are connected, May be referred to as a counterpart.

Claims (6)

1. A connector for fitting a tube through which a fluid flows,
A connection member having an insertion port into which the tube is inserted by a predetermined length;
A counterpart coupled to the connection member while being moved in a direction to be close to the connection member, the connection member being connected by the connection so that the flow path inside the pipe is communicated;
A locking ring fixed to the pipe at the inner side of the connecting member and hermetically sealed between the pipe and the connecting member, the position being fixed by pressing the outer surface of the pipe when the pipe is inserted; And a paralle which is deformed toward the center of the pipe when the connection member and the mating member are fully engaged, thereby sealing between the pipe and the connection member;
And an O-ring inserted through the pipe at the inner side of the connecting member and disposed to be in contact with one side of the connecting member and the ferrule assembly and pressurized when the connecting member is engaged,
The O-
A central portion contacting the inner circumference of the connecting member,
And a side projection protruding from both sides of the central portion and being elastically deformed when the connection member is engaged,
Wherein the lateral protrusion presses and supports the locking ring by elastic deformation and at the same time fills the space between the connecting member and the pipe and the ferrule assembly.
The method according to claim 1,
Wherein the locking ring comprises:
A ring mounting portion bent to surround the end of the ferrule and fixed to the ferrule;
And a pipe restricting portion that is bent at an angle in the inserting direction of the pipe along the inner circumference and has an end fixedly attached to an outer surface of the pipe.
The method according to claim 1,
Preferably,
A locking ring seating portion protruding along the outer periphery and supported by the O-ring, the locking ring seating portion being coupled with the locking ring;
A paralle inclined surface inclined at an inner side surface of the locking ring seating portion and having an end portion of a grip ring in contact with the tube;
A grip portion extending from the one end of the locking ring seating portion in the inserting direction of the tube and contacting the outer surface of the tube by deformation;
And a groove that is recessed along the periphery of the grip portion to facilitate deformation of the grip ring.
The method according to claim 1,
Wherein the connecting member is provided with a rubber-ring-shaped coupling confirming member which is penetrated by the connecting member,
Characterized in that an end portion of the mating member is formed with a check member receiving portion which is in close contact with the mating check member when the mating member is fully engaged and is formed so as to be stepped so that the mating check member can be completely received, .
The method according to claim 1,
An intermediate member is disposed between the connecting member and the mating member so that the pipe can be inserted,
Wherein the intermediate member is configured to press the ferrule assembly to deform an end of the ferrule assembly when the connection member and the partner are coupled.
6. The method of claim 5,
Wherein the intermediate member comprises:
An inclined portion formed to be inclined so that an inner diameter gradually becomes narrower at an open end where the tube is inserted;
And an insertion portion extending at an end portion of the inclined portion so as to have an inner diameter narrower than the outer diameter of the tube,
And an end of the ferrule assembly is moved to the insertion portion through the inclined portion according to the coupling between the connection member and the mating member.

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