KR101586171B1 - Pipe connecting device - Google Patents

Abstract

The present invention relates to a piping connector, and more particularly, to a piping connector that can be assembled by simply pushing by a one-touch method, thereby shortening a working time, The present invention relates to a piping connector capable of constructing piping connection parts with high quality.
The present invention relates to a pneumatic tire comprising: a housing having both inner and outer sides formed symmetrically with respect to an intermediate portion, the pipe configured to be inserted from both ends; A sealing member inserted into the housing to seal the front end of the inserted pipe to be hermetically sealed; And a joining member disposed at a rear portion of the sealing member and in contact with a rear portion of a front end portion of a pipe to be inserted, wherein the joining member has at least two incision portions that are cut to a predetermined length from a front end portion to an intermediate portion, The front end of the coupling member is formed with a protrusion protruding by a predetermined length. The protrusion is opened by the pressing force generated when the pipe is inserted into the housing, and when the protruding protrusion is inserted, The protruding portion receiving groove is formed.

Description

{PIPE CONNECTING DEVICE}

The present invention relates to a piping connector, and more particularly, to a piping connector that can be assembled by simply pushing by a one-touch method, thereby shortening a working time, The present invention relates to a piping connector capable of constructing piping connection parts with high quality.

Generally, pipes are widely used for transporting gases such as fluids or gases such as water or oil. These pipes are manufactured and sold to a certain standard (length) due to transportation or handling restrictions.

Therefore, when constructing a section longer than the standard length of the pipe or constructing the bent section, it is necessary to use a pipe connection device or weld the pipes to each other.

There is a wide variety of piping connection devices for connecting pipes used in the piping. In particular, piping connection devices having a structure that prevents the pipes inserted in the connection ports from being escaped by using a grip ring, It is widely used for plumbing work.

FIG. 1 is an exploded perspective view for explaining a conventional piping connection method. FIG. 2 is a longitudinal sectional view of FIG. 1. In the conventional piping connection method, as shown in FIGS. 1 and 2, The nut 2 is inserted into the male thread portion 2 of the pipe 1 in a state in which the O-ring 6, the washer 5 and the grip ring 4 are successively installed on the pipe 3 after the pipe 2 is inserted into the nut 2. [ 1a.

Thus, when the protruding portion 2b of the nut 2 compresses the O-ring 6 in a state where the grip ring 4 provided on the pipe 3 is in close contact with the first stopper 1b of the pipe 1, 6 and the outer circumferential surface of the pipe 3 are sealed so as to be kept airtight and the washer 5 pushes the grip ring 4 so that the grip 4a of the grip ring 4 is pressed against the pipe 3 The pipe 3 is clamped so that the pipe 3 is not separated from the pipe connection device until the nut 2 is completely screwed into the pipe 1.

However, in the conventional pipe connection method, when the insertion depth of the grip ring 4 inserted into the pipe 3 is limited to maintain a predetermined depth and the insertion depth of the grip ring 4 is short, When the pipe 3 is detached and the insertion depth of the grip ring 4 is deeper on the contrary, when the nut 2 is screwed into the pipe 1, the tip of the pipe 3 is connected to the second stopper 1c of the pipe The grip ring 4 is damaged by tightening the nut in the close contact state or the outer circumferential surface of the pipe 3 is scratched by the grip 4a or excessive compression of the O-ring 6 causes bottleneck of the pipe, Which is the cause of the separation.

Moreover, the conventional piping connection method shows a fatal defect in which the pipe 3 is separated from the piping connection apparatus by varying the assembling order of the parts when the operator's mistake or work skill is lowered.

Due to the above-described problem, a pipe connector assembly as shown in FIG. 3 has been developed and used.

FIG. 3 is a vertical sectional view showing a conventional pipe connector assembly. FIG. 4 is a vertical sectional view of a state in which a pipe is inserted into an insertion hole of a component in a state in which a lid is separated from a housing. In the housing 7, A first stopper 7a is formed for assembling the ring 4, the washer 5 and the O-ring 6 in order to determine its position, and the lower end of the first stopper 7a is provided with the grip ring 4 A second stopper 7b for limiting the insertion depth of the pipe 3 that has passed through the insertion hole of the washer 5 and the O-ring 6 and a grip ring 4 assembled to the housing 7, The washer 5, and the O-ring 6 are protected by the lid 8.

Therefore, in order to connect the pipe, the lid 8 is removed from the housing 7, and then the pipe 3 to be installed is pushed into the insertion hole of the component, the tip of the pipe 3 is caught by the second stopper 7b, The grip ring 4, the washer 5, and the O-ring 6 are sequentially positioned on the outer circumferential surface of the pipe 3, so that the connection operation of the pipe can be performed.

However, the conventional connection method also has the following problems.

First, the insertion depth is limited so that the insertion depth of the pipe is precisely inserted by sequentially inserting the parts inside the housing. However, when the operator does not understand this, the parts are separated from the housing and the parts are manually assembled in the pipe And the above-described problems are repeatedly generated.

Secondly, since the clamping of the pipe connecting device and the pipe depends on one grip ring, if the pipe is a pipe through which a high-pressure fluid or gas flows or a defect occurs in the grip ring, the clamping force for supporting the pipe is lowered, There was a case in which the separation was performed.

If the pipe through which the gas passes is installed indoors, the pipe can not be separated or the airtightness can not be maintained, and if the gas is stained, it shows a deadly combination which causes a great disaster.

Third, there is no function of pushing the pipe so as to come into close contact with the second stopper of the pipe in the process of screwing the nut to the pipe, so that the tip of the pipe and the pipe are spaced apart as shown in FIG. 2 to generate a gap (t) It was the cause of gas leakage.

Fourth, since there is no sealing function inside the nut, moisture penetrates into the inner part. As a result, the grip ring and the washer are corroded due to long-term use, and the clamping force is lowered.

In the meantime, the above-described piping connectors need to be prepared individually before installing the components. Since the assembled parts must be connected to one another before the work is performed, the piping must be connected to each other, which increases the number of work operations, .

Patent No. 10-1416672

SUMMARY OF THE INVENTION The present invention has been made to solve the problems described above, and it is an object of the present invention to provide a piping system that can perform assembly work of a piping connector only by pushing by a one-touch method, thereby shortening a working time, So that the piping connection portion can be constructed with high quality.

It is a further object of the present invention to provide a pipe connector connecting both ends of a pipe so that both pipes can not be easily separated and airtightness can be maintained so that fluid can be smoothly transported.

According to an aspect of the present invention, there is provided a portable terminal comprising: a housing having an inner side and an outer side formed symmetrically with respect to the middle, and a pipe inserted from both ends thereof; A sealing member (200) inserted into the housing (100) and hermetically contacting the front end of the inserted pipe; And a coupling member 300 provided at a rear portion of the sealing member 200 and in contact with a rear portion of a front end of a pipe to be inserted into the coupling member 300. The coupling member 300 has a predetermined length from the front end portion to the middle portion The housing 100 is formed with two or more cutouts 301 and a protrusion 302 protruding from the front end of the coupling member 300 by a predetermined length and the pipe 400 is inserted into the housing 100 The protruding portion 302 is opened outwardly by a pressing force generated when the protruding portion 302 is inserted, and protruding portion receiving grooves 111 are formed for accommodating the protruding portion 302 when the protruding portion 302 is inserted.

In one embodiment, the coupling member 300 is protruded to be close to the inner wall surface of the housing 100 in the middle of the outer side surface thereof, and prevents the pipe from shaking when the pipe 400 is inserted. (303); And a flange (304) formed at the end portion to prevent the coupling member (300) from being completely drawn into the inside of the housing (100).

In one embodiment, a draw-out restricting protrusion 103 is protruded from the middle of the inner side of the housing 100 to prevent the engaging member from being easily released. The draw-out restricting protrusion 103 is formed by the external force When the pipe 400 is pulled out, the outer surface of the protrusion 302 and the outflow limiting protrusion 103 are in contact with each other to prevent the pipe 400 from being pulled out, The length of the engaging member 300 is limited by contacting the engaging member 303.

In one embodiment, the engaging member 300 is formed to be in contact with the outer surface of the pipe 400 inserted in the rear of the protrusion 302, And a reverse restraining tooth 305 having an increased inner diameter.

In one embodiment, the sealing member 200 may include a protrusion 201 formed to taper the passage through which the pipe 400 is inserted, so that the front end of the pipe 400 is first inserted and contacted therewith; And a groove 202 formed on the outer side of the protrusion 201 to secure a space when the protrusion 201 is pressed by the pipe 400. [

In one embodiment, the sealing member 200 further includes outer side projections 203 protruding from the outer side surface of the sealing member 200 to enhance a sealing effect with the housing 100.

In one embodiment, the protrusion 201 is protruded from the outer circumferential surface of the sealing member 200 by a predetermined length.

In one embodiment, a first receiving groove 101 and a second receiving groove 102 are formed on the inner side surface of the housing 100 from the center of the housing 100, and the first receiving groove 101 The sealing member 200 is accommodated in the first receiving groove 102 and the engaging member 300 is received in the second receiving groove 102 in the second receiving groove 102. The first and second receiving grooves 101, And the partition ring 112 is integrally formed with or separated from the housing 100.

Both ends of the housing 100 and the coupling member 300 are inserted into the housing 100 such that the coupling member 300 is no longer inserted into the housing 100 after the pipe 400 is inserted through both ends Shaped ring 500 interposed between the end of the housing 100 and the flange 304 in order to prevent the flange 304 from being damaged.

According to the piping connector of the present invention, first, the assembling operation of the piping connector can be performed only by pushing by the one-touch method, thereby shortening the working time. As a result, It is possible to apply the high quality of the site.

Second, both ends of the pipe are connected, but both pipes are not easily separated and the airtightness is maintained, so that the fluid can be smoothly conveyed.

Third, it is possible to construct a pipe connector with a relatively simple structure, so that the construction work is easy, thereby reducing the work flow and improving the efficiency of the work due to the quick work.

1 is an exploded perspective view illustrating a conventional piping connection method.
Fig. 2 is a longitudinal sectional view of Fig. 1; Fig.
3 is a longitudinal section view of a conventional pipe connector assembly.
FIG. 4 is a longitudinal sectional view of a state in which a pipe is inserted into an insertion hole of a component in a state in which a lid is detached from a housing. FIG.
5 is a perspective view showing a pipe connector of the present invention.
FIG. 6 is an exploded perspective view of FIG. 5. FIG.
Fig. 7 is a sectional view of Fig. 6. Fig.
8 to 10 are views showing the state of use of the piping connector of the present invention, wherein Fig. 8 is a view before the pipe is inserted into the piping connector, Fig. 9 is a view showing a state in which a pipe is inserted into the piping connector, And FIG. 10 is a view showing a pipe coupled to a pipe connector in a state in which the pressing force is released in FIG.
11 is a sectional view showing a modified example of the housing provided in the pipe connector of the present invention.
12 is a perspective view showing a modification of the sealing member provided in the pipe connector of the present invention.
13 is a sectional view of Fig.

For a better understanding of the present invention, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention may be modified into various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. The present embodiments are provided to enable those skilled in the art to more fully understand the present invention. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that in the drawings, the same members are denoted by the same reference numerals. Further, detailed descriptions of well-known functions and configurations that may be unnecessarily obscured by the gist of the present invention are omitted.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a piping connector according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 5 is a perspective view showing a pipe connector of the present invention, FIG. 6 is an exploded perspective view of FIG. 5, and FIG. 7 is a sectional view of FIG.

5 to 7, a piping connector according to the present invention includes a housing 100, which is formed such that both the inner and outer sides thereof are symmetrically formed with respect to the middle, and a pipe is inserted from both ends thereof, A sealing member 200 which is inserted into the inside of the sealing member 200 and hermetically contacts the front end of the pipe to be inserted and an engaging member 300 which is inserted and inserted in the rear of the sealing member 200. That is, the coupling member 300 is inserted into the housing 100 through the insertion holes at both side ends of the housing 100.

On the inner surface of the housing 100, grooves of different diameters are formed to receive the sealing member 200 and the coupling member 300. A receiving groove in which the sealing member 200 is received may be divided into a first receiving groove 101 and a receiving groove in which the coupling member 300 is received may be divided into a second receiving groove 102. Here, the region excluding the first and second receiving grooves 102 is formed to have a diameter corresponding to the pipe 400.

The housing 100 is formed with grooves having different diameters for receiving the sealing member 200 and the coupling member 300. The sealing member 200 includes a first receiving groove 101 The coupling member 300 is received in the second receiving groove 102 and the first and second receiving grooves 101 and 102 are provided with a dividing ring 112 therebetween. The compartment ring 112 may be integrally formed with the housing 100 as shown in FIG. 5, or may be configured to be separated as shown in FIG. This is for the convenience of manufacturing the housing 100. When the partition ring 112 and the housing 100 are difficult to be integrally formed, the partition ring 112 may be separately formed.

The joining member 300 is not advanced forward together with the pipe 400 when the pipe 400 is inserted by the partition ring 112 and is opened so that the pipe 400 and the joining member 300 are engaged by the one- .

Meanwhile, the housing 100 is opened so that the protrusion 302 is directed outward by a pressing force generated when the pipe 400 is inserted into the housing 100, and when the protrusion 302 is inserted, A protrusion receiving groove 111 is formed. 9, when the pipe 400 penetrates through the coupling member 300 and is inserted into the housing 100, the protrusion 302 is inserted into the receiving groove 111 ).

The housing 100 may have various shapes such as an "I" shape, a "T" shape, a "Y" shape, an "L" shape, and the like. Further, one side may have the form of the housing 100 according to the present invention, and the other side may be made of various known attachable forms.

The coupling member 300 includes a flow prevention protrusion 303 protruding from the inner side wall of the housing 100 in the middle of the outer side surface thereof to prevent shaking of the pipe when the pipe 400 is inserted, A flange 304 may be further formed at the end of the coupling member 300 to prevent the coupling member 300 from being fully inserted into the housing 100. Here, the coupling member 300 may be made of brass or other metal (SUS) or synthetic resin which is easily deformable by the pipe 400.

On the other hand, in the middle of the inner side of the housing 100, a release restricting protrusion 103 is protruded so that the engaging member can not be easily detached. When the pipe 400 is pulled out by an external force, the outflow limiting protrusion 103 is in contact with the outer surface of the protrusion 302 and the outflow limiting protrusion 103 to prevent the pipe 400 from being pulled out And when the pipe 400 is pulled in, it comes into contact with the flow preventing protrusion 303 of the engaging member 300 to limit the length of the engaging member 300.

The joining member 300 is formed to have two or more surfaces contacting with the outer surface of the pipe 400 inserted in the rear of the protrusion 302. The inner diameter of the joining member 300 increases toward the rear end, Teeth 305 may be further provided. When the backward restraining teeth 305 are formed to have the same diameter, the backward restraining teeth 305 formed at the forefront are not smoothly brought into contact with the surface of the pipe 400 when the pipe 400 is pulled back, It is preferable that the inner diameter of the backward restraining tooth 305 increases from the forefront to the rear end of the engaging member 300 because the forced withdrawal can not be restricted. That is, when the pipe 400 is inserted, the protrusion 302 is inserted into the protrusion receiving groove 111 by the diameter of the backward suppressing tooth 305, so that the backward suppressing tooth 305 is inserted into the protrusion receiving groove 111, The backward suppressing teeth 305 can be closely attached to the outer circumferential surface of the pipe 400 when the pipe 400 is inserted.

In addition, it is preferable that two or more cutouts 301 are formed on the outer surface of the coupling member 300, and the number of the cutouts 301 may be two or more. The cut-out portion 301 may be formed from the end to the backward restraining tooth 305 in a short manner, or may be formed long before the flange 304. The length of the cut-out portion 301 may be formed within the above-mentioned range, and the length of the cut-out portion 301 may be appropriately adjusted according to the intention of the user and the outer diameter of the pipe. Furthermore, the angle at which the cut-out portion 301 is formed can be varied. For example, they may be formed at intervals of 180 degrees as shown in the drawing, but they may be formed at various intervals such as 90 degree intervals and 60 degree intervals.

In addition, a concave curved surface portion 313 is formed on the outer surface of the engaging member 300, that is, the rear of the protruding portion 302, and the inner surface of the housing 100, which is a position corresponding to the concave curved surface portion 313, A convex curved surface portion 113 is formed. The concave curved surface portion 313 and the convex curved surface portion 113 are brought into contact with each other even when the pipe 400 is inserted through the middle portion of the coupling member 300 and the pipe 400 is to be forcibly drawn out, The withdrawal will be limited.

Meanwhile. The sealing member 200 may include a protrusion 201 formed to taper so as to taper the pipe 400 into which the pipe 400 is inserted so that the front end of the pipe 400 is first inserted and contacted with the protrusion 201, And a groove 202 formed to secure a space when the projection 201 is pressed by the pipe 400. [

This is because when the pipe 400 is inserted into the housing 100 through the coupling member 300, the protrusion 201 of the sealing member 200 comes into contact with the outer surface of the pipe 400, (201) is bent toward the outer side of the housing (100). That is, the shape of the end face of the penetrating portion of the sealing member 200 is formed in a trapezoidal shape, and the protrusion 201 corresponding to the inner diameter portion of the short side of both sides is connected to the pipe 400, So that the pipe 400 is brought into contact with the outer circumferential surface of the pipe 400 when the pipe 400 is inserted.

Here, the sealing member 200 corresponds to an O-ring. The O-ring is formed to have a diameter larger than the diameter of the pipe for convenience in inserting the pipe. In order to prevent the O- A screw connection is made using a connecting chain nut or the like. As a result of this screwing, the O-ring is tightly packed between the connector and the pipe due to the pressing force, and the O-ring is crushed to increase the adhesion.

However, if the sealing member 200 is applied as in the present invention, it is not necessary to provide a conventional connecting body, and the fastening process through the connecting body is eliminated. That is, the penetrating portion of the sealing member 200 is formed so as to be tapered so that the protrusion 201 is formed at the front end of the inner diameter, so that the pipe 400 is inserted into the through hole and is in contact with the outer peripheral surface of the pipe 400 The adhesion force is increased.

That is, since the inner diameter of the sealing member 200 is larger than the outer diameter of the pipe in the direction in which the pipe is inserted, the inner diameter of the pipe 400 is smaller than the outer diameter of the pipe 400, The pipe 400 and the sealing member 200 are more tightly adhered to each other without a pipe tightening procedure.

When the protrusion 201 of the sealing member 200 contacts the pipe 400, the pipe 400 is inserted and presses the protrusion 201, and the protrusion 201 is inserted into the groove 202 It is possible to secure a space to be pushed.

As shown in FIGS. 12 and 13, the protrusion 201 may be formed to protrude from the outer circumferential surface of the sealing member 200 by a predetermined length, as a modification of the sealing member 200 described above. This is because the protruding portion 201 protrudes more than the outer circumferential surface of the sealing member 200, so that the area of contact with the pipe 400 is widened, resulting in higher adhesion.

The outer surface of the sealing member 200 is protruded from the outer surface of the sealing member 200 in order to enhance the sealing effect with the housing 100. In other words, the pipe 400 is inserted and the protruding portion 201 is pressed. In addition to the phenomenon that the protruding portion 201 is pushed outward, the pressing force is applied to the entirety of the sealing member 200, As shown in Fig. In order to prevent the leakage of the fluid to be flowed to the inside of the pipe while increasing the adherence force when it is tightly adhered. The sealing member 200 is preferably formed of silicone or rubber.

Both ends of the housing 100 and the engaging member 300 are configured to restrict the engaging member 300 from being inserted further into the housing 100 after the pipe 400 is inserted through both ends A C-shaped ring 500 interposed between the end of the housing 100 and the flange 304 may be further provided.

This is because when the coupling member 300 is deeply drawn into the inside of the housing 100 due to external force after the pipes are connected by the pipe connector of the present invention, the pipe may be pulled outward, To the inside of the housing (100).

Hereinafter, the use state of the pipe connector of the present invention will be described.

8 and 9 are views showing the use state of the pipe connector of the present invention, FIG. 8 is a view before the pipe is inserted into the pipe connector, and FIG. 9 is a view showing a pipe inserted into the pipe connector.

8 and 9, the pipe connector of the present invention is used to connect two or more pipes. The pipe is cut by the first desired length, and both ends of the pipe are connected using a pipe connector.

Specifically, as shown in FIG. 8, the sealing member 200 is inserted into the first receiving groove 101, the engaging member 300 is inserted into the second receiving groove 102 through both ends of the housing 100 for the first time, Is released. Since the worker takes a long time to work by joining the sealing member 200 and the coupling member 300 at the work site, the worker has to place the coupling member 300 and the sealing member 200 inserted into the housing 100 As well.

9, the pipe 400 passes through the sealing member 200 and passes through both ends of the housing 100 at the central portion thereof, as shown in FIG. 9, Both ends of the inserted pipes 400 are brought into contact with each other.

Specifically, when the pipe 400 is pressed, the backward restraining tooth 305 of the engaging member is formed to be smaller than the inner diameter of the pipe, so that the front end of the engaging member 300 is opened. At this time, when the pipe is further pressed, the pipe 400 passes through the sealing member 200 and reaches the center of the housing 100. At this time, the front end of the coupling member 300 is opened by the pressing force of the pipe, 400 are inserted to the center of the housing 100. At this time, if the pipe 400 is pressed so as to be inserted through the sealing member 200 to the middle portion of the housing 100, the coupling member 300 can not withstand this force due to the pressing force. At this time, the projecting portion 302 of the engaging member 300 is pushed into the projecting portion receiving groove 111 of the housing 100 (see the dotted line in Fig. 9).

10, the protrusion 302 inserted into the protrusion receiving recess 111 is gradually retracted and is withdrawn from the protrusion receiving recess 111 to be removed from the initial position as shown in FIG. 8, Or the protrusion 302 is positioned at the entrance of the receiving groove 111. In this process, the backward restraining teeth 305 tightly bite the pipe 400 to prevent the pipe 400 from being pulled out.

When both ends of the pipe 400 are connected by the piping connector of the present invention as described above, even if the pipe 400 is forcibly pulled out, the protrusion 302 of the coupling member 300 is retracted The pipe 400 is brought into contact with the outflow restricting protrusion 103 formed inside the housing 100 so that the pipe 400 can no longer be moved backward. At the same time, since the backward restraining teeth 305 whose inner diameter increases toward the rear end are also bent toward the center of the housing 100, the pipe 400 can no longer be reversed. The concave curved surface portion 313 and the convex curved surface portion 113 are brought into contact with each other even when the pipe 400 is inserted through the middle portion of the coupling member 300 and the pipe 400 is forcibly drawn out Thereby limiting the withdrawal of the pipe. Therefore, the backward movement and the departure of the pipe 400 are restricted by the withdrawal restricting projection 103, the projecting portion 302, the backward restricting teeth 305, and the convex and concave curved portions 113 and 313 4. Such a deviation prevention effect also has an effect of preventing the parts from being separated in the distribution process of the first product.

Meanwhile, although both ends of the pipe 400 are connected to each other, it is also possible that a pipe having different inner diameters is connected to a wrong pipe of a worker or a bad pipe is connected. In this case, the pipe must be separated from the housing 100. In this case, if the coupling member 300 is pressed firmly to the inside of the housing 100 while fixing the pipe 400, The protrusions 302 of the housing 300 are inserted into the protrusion receiving grooves 111 of the housing 100. Since the backward suppressing teeth 305 also slightly protrude from the outer circumferential surface of the pipe 400, the pipe can be pulled out and separated through the clearance.

Since the pipe 400 can be separated from the housing 100 when the coupling member 300 is pushed inside the housing 100 after both ends of the pipes 400 are connected to each other, Type ring 500 is interposed between the end of the housing 100 and the flange 304 to prevent the C-type ring 500 from being inserted deeply into the housing.
The first receiving groove 101 and the second receiving groove 102 are formed on the inner surface of the first receiving groove 101 and the second receiving groove 102, respectively, (Not shown).
In addition, a protrusion 201 formed to taper inward toward the front of the pipe through which the pipe is inserted, and a protrusion 201 formed on the outer side of the protrusion 201 to secure a space when the protrusion 201 is pressed by a pipe And an outer side protrusion 203 protruding from the outer side surface to enhance a sealing effect, and is inserted into the first receiving groove 101 so as to be hermetically contacted with the front end of the inserted pipe. (Not shown).
The protrusion 302 is formed by protruding a predetermined length so as to extend toward the outside when the pipe is inserted by the incision 301 cut into two or more predetermined lengths from the front end to the middle and the front end is formed to taper inward toward the front side. And a coupling member 300 inserted into the second receiving groove 102 to be hermetically contacted with the rear end of the pipe.
Here, the first receiving groove 101 of the housing is formed to be straight with a length equal to the length of the sealing member 200, and is in close contact with the outer surface of the sealing member 200 (101-2) formed to be sloped inward toward the front in the receiving groove (101-1) and the contact receiving groove (101-1) and to receive the front outer edge of the sealing member (200) May be formed.
The second receiving groove 102 of the housing has a protruding portion receiving groove 111 for receiving the protruding portion 302 extending outward and a convex curved surface portion 113 formed at the rear of the protruding portion receiving groove 111, And a rear end portion of the convex curved surface portion 113 protrudes from a rear end of the convex curved surface portion 113 in a direction perpendicular to the tapered surface of the coupling member 300. [ A protrusion restricting protrusion 103 may be formed so as to be tapered outward so as to correspond to the inclined direction of the protrusion 302 for smooth insertion of the protrusion protrusion 302.

It will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the appended claims. There will be. Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

100: housing 101: first receiving groove
102: second receiving groove 103:
111: projection receiving groove 200: sealing member
201: protrusion 202: groove
203: outer side projection 300: coupling member
301: incision section 302:
303: Flow prevention protrusion 304: Flange
305: Reverse restraining tooth 400: Pipe
500: C-shaped ring

Claims (9)

A housing 100 in which a first receiving groove 101 and a second receiving groove 102 are formed on the inner side of the housing 100, ;
A protrusion 201 formed on the outer side of the protrusion 201 to secure a space when the protrusion 201 is pressed by a pipe, a protrusion 201 formed to taper inward toward the front, (201), and an outer side projection (203) protruding from the outer side to increase the sealing effect. The sealing member is inserted into the first receiving groove (101) Member (200); And
And a protrusion 302 formed by protruding a predetermined length so as to extend toward the outside when the pipe is inserted by the incision 301 formed by cutting at least two predetermined lengths from the front end to the middle and the front end portion is formed to taper inward toward the front side And an engaging member (300) inserted into the second receiving groove (102) to be hermetically contacted with the rear end of the pipe,
The first receiving groove (101) of the housing
(101-1) formed in a straight line to the front with the same length as that of the sealing member (200) and closely contacting the outer surface projection and the outer surface of the sealing member (200)
A seating receiving groove 101-2 formed to be inclined inward toward the front in the close contact receiving groove 101-1 to receive and seat the front end outer side of the sealing member 200 when the pipe is inserted,
The second receiving groove (102) of the housing
A protruding portion receiving groove 111 for receiving the protruding portion 302 extending outward and a convex curved surface portion 113 formed at the rear of the protruding portion receiving groove 111; And a rear end portion of the protruding portion 302 is protruded at a predetermined interval from the rear end of the convex surface portion 113. The front end portion is formed at a right angle to the rear of the convex surface portion 113, 302) is formed so as to be tapered toward the outside so as to correspond to the inclination direction of the pipe connecting protrusions (302, 302).
The method according to claim 1,
The engaging member (300)
A flow prevention protrusion 303 protruding from the inner side wall of the housing 100 to prevent the pipe from being shaken when the pipe 400 is inserted in the middle of the outer side wall of the housing 100; And
And a flange (304) formed at the end portion to prevent the coupling member (300) from being completely inserted into the inside of the housing (100). 3. The method according to claim 1 or 2,
The drawing limiting protrusion 103 prevents the pipe 400 from being drawn out by being in contact with the outer surface of the protrusion 302 and the drawing limiting protrusion 103 when the pipe 400 is pulled out by an external force, Wherein a length of the coupling member (300) is limited by contacting the flow prevention protrusion (303) of the coupling member (300) when the pipe (400) is inserted. The method according to claim 1,
The engaging member (300)
And further includes a backward suppressing tooth 305 formed to be in contact with an outer surface of the pipe 400 inserted to the rear of the protrusion 302 and having an inner diameter increasing toward the rear end of the coupling member 300 Features a plumbing connection. delete delete The method according to claim 1,
The protruding portion 201 is formed,
Is formed to protrude by a predetermined length from the outer circumferential surface of the sealing member (200). 3. The method according to claim 1 or 2,
Wherein the first and second receiving grooves 101 and 102 are provided with a dividing ring 112 between them and the dividing ring 112 is integrally formed with or separated from the housing 100. [ Connector. 3. The method according to claim 1 or 2,
Both ends of the housing 100 and the coupling member 300 are connected to the housing 100 to limit the coupling member 300 from being inserted further into the housing 100 after the pipe 400 is inserted through both ends 100) and the flange (304). ≪ RTI ID = 0.0 > 31. < / RTI >

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