KR20060009030A - A cartridge - Google Patents

Abstract

The present invention relates to a pipe connection cartridge, in particular, having a fixing portion fitted into the interior of the main body connecting the pipe, and constitute a pipe fitting fitted into the fixing portion,

In the middle part of the fixing part, a plurality of fixing pieces are formed by insert injection to protrude outward of the fixing part so as to be in close contact with the inner circumferential surface of the main body, and a plurality of protrusions along the inner circumferential surface of the fixing part to fix the tubular body inserted into the main body. As the insert is formed by insert injection forming the inwardly protruding departure prevention piece,

Simplify the structure of the cartridge to improve the productivity of the product, as well as to improve the mutual coupling force between the tube, the fixed portion and the tube connector when connecting the pipeline, and to prevent the leakage of water caused by foreign substances such as hair is not caught. Relates to a cartridge.

Tube, Body, Cartridge, Fixing Piece, Detachment Piece, Pipe Connector,

Description

Cartridge for pipe connection {A cartridge}

       Figure 1 is an exploded perspective view showing the fixing portion constituting the cartridge for pipe connection of the present invention.

      Figure 2 is a cross-sectional view showing a state in which the fixing portion constituting the pipe connection cartridge of the present invention coupled to the main body.

Figure 3 is a cross-sectional view showing a state in which the tubular connector of the present invention is coupled to the fixed portion.

Figure 4 is a cross-sectional view showing a state in which the tube is inserted into the inner tube connector of the present invention.

Figure 5 is a cross-sectional view showing a state in which the tubular body can be separated from the main body by the present invention.

Figure 6 is a plan view showing a state in which the insert inserting the fixing piece and the separation prevention piece to the fixed portion applied to the present invention.

(A) (B) (C) is sectional drawing which shows a fixing part.

8 is a perspective view showing a conventional pipe connection cartridge.

Figure 9 is a cross-sectional view showing a conventional pipe connection cartridge.

Explanation of symbols for main parts of the drawings

10: main body, 11: hanging jaw,

20: fixed part, 21: guide protrusion,

22: separation prevention piece, 23: fixing piece,

23a: bend, 24: protrusion,

26: hanging end, 30: tubular connector,

31: elastic piece, 32: engaging projection,

40: tube,

The present invention relates to a cartridge for pipe connection, and in particular, to simplify the structure of the cartridge to improve the productivity of the product, as well as to improve the mutual coupling force of the pipe and the fixing portion and pipe connector when connecting the pipe, as well as to prevent foreign matter from leaking. The present invention relates to a pipe connection cartridge in which a phenomenon does not occur.

That is, Figure 8 and Figure 9 shows a conventional pipe connection cartridge,

A main body 1 having an extended inner circumferential surface stepped on the inner circumferential surface of both ends, and a plurality of first latching jaws 3 supported by the extended inner circumferential surface of the both ends when forcibly inserted into both ends of the main body 1, has an outer circumferential surface of the body. The first coupling member (2) formed in the inclined surface on the inner peripheral surface and a plurality of elastic wings (4) partitioned by the dividing groove to be fitted to the inclined surface of the first coupling member (2) on one side of the body And a second engaging member 5 having a second locking jaw 6 for supporting the outer circumferential surface of the pipe when the fluid circulation pipe 9 is forcibly inserted into the inner wall of the elastic wing 4. .

The first coupling member 2 is formed with a departure preventing jaw (7) formed on the outer peripheral surface of the cylindrical body so that the second coupling member (5) can be fitted inward, the departure preventing jaw (7) a plurality of outwardly from the center The locking ring 8 in which the first locking jaw 3 is formed is fitted.

The second coupling member 5 has a plurality of elastic wings (4) formed by divided grooves so as to forcibly fit inside the first coupling member (2) on one side of the main body (1), the elastic wings The inner wall of (4) is integrally formed with a second locking jaw (6) made of stainless steel so that when the pipe (9) is inserted, the outer circumferential surface of the pipe (9) is dug to prevent the pipe (9) from being separated. will be.

First, as described above, the first catching jaw 3 and the second catching jaw 6 are respectively manufactured, and then the catching ring 8 is inserted into the inside of the main body 1, and the upper portion of the catching ring 8 is provided. The first coupling member 3 is seated, and then the first coupling member 2 is coupled to the first coupling member 2 by mounting the first coupling member 2 on the upper portion of the first locking jaw 3. .

In addition, the second engagement member 5 is coupled to the second locking jaw 6 by an insert injection method.

As described above, in manufacturing the first coupling member 2 and the second coupling member 5, a lot of manpower and equipment are wasted, and the manufacturing process is complicated, resulting in a decrease in overall cost.

Therefore, the present invention for solving the above problems is provided with a fixing portion fitted into the interior of the main body connecting the pipe, and constitute a tubular connector fitted into the inside of the fixing portion, the middle portion of the fixing portion The insert is formed by insert injection, protrudes to the outside of the fixing part so as to be in close contact with the inner circumferential surface of the main body, and inserts a departure prevention piece in which a plurality of protrusions protrude inward along the inner circumferential surface of the fixing part so that the tubular body inserted into the main body is fixed. By forming by injection molding,

Simplify the structure of the cartridge to improve the productivity of the product, as well as to improve the mutual coupling force between the tube, the fixed portion and the tube connector when connecting the pipeline, and to prevent the leakage of water caused by foreign substances such as hair is not caught. It is an object to provide a cartridge.

The present invention for achieving the above object,

According to claim 1,

A main body having a fluid circulating therein and a locking jaw formed on an inner circumferential surface thereof;

An O-ring seated on an inner circumferential surface of the main body to prevent leakage of fluid circulated therein when the tube is fixed; In the configuration, including,

A fixing part fitted inside the main body for connecting the tubular body and having a locking end stepped on the inner circumferential surface;

Comprising an elastic piece that is fitted to the inside of the fixing portion, and constitutes a tubular connector formed with a protruding locking projection is coupled to the engaging end portion at the end of the elastic piece,

In the middle part of the fixing part, a plurality of fixing pieces are formed by insert injection to protrude outward of the fixing part so as to be in close contact with the inner circumferential surface of the main body, and a plurality of protrusions along the inner circumferential surface of the fixing part to fix the tubular body inserted into the main body. Is characterized in that the insert injection-molded protruding inwardly escaped pieces.

According to claim 2,

It is characterized in that the guide projection for guiding the up and down bending operation of the protrusion on the inside of the fixing portion protruding in an uneven shape.

According to claim 3,

One end of the fixing piece is characterized in that the bent portion for reinforcing the bonding strength of the fixing piece inserted into the fixing part.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, FIGS. 1 to 7.

Reference numeral 10 denotes a main body for connecting two tubular bodies 40, and a plurality of locking jaws 11 are formed on the inner circumferential surface of the main body 10, and the locking jaws 11 have an O-ring for preventing leakage. (12) is fitted.

Reference numeral 20 denotes a fixing part 20 fitted into the main body 10, wherein the fixing part 20 is formed to have a cylindrical shape, and the locking projection 32 of the tubular connector 30 is installed on its inner circumferential surface. The hanging end 26 to be caught is formed stepped.

In the middle of the fixing part 20, the plurality of fixing pieces 23 are insert injection molded to protrude outward, and the release preventing piece 22 is insert injection molded to protrude inward.

The fixing piece 23 protrudes outward on the outer circumferential surface of the fixing part 20 to be in close contact with the inner circumferential surface of the main body 10 to serve to hold the fixing part 20 so as not to be detached from the fixing piece 23. Bending portion 23a is bent at one end of the fixing piece 23 which is injected to insert so that the bonding strength of the fixing portion 20 and the fixing portion 20 is reinforced.

That is, the bent portion (23a) is to be present in the fixing portion 20 to improve the bonding strength of the fixing piece (23).

 On the other hand, the departure preventing piece 22 is to be in close contact with the outer circumferential surface of the tubular body 40 that is fitted into the fixing portion 20 serves to hold the tubular body 40 is not separated, a plurality of on the inner peripheral surface Protruding portion 24 is protruded in the form of unevenness, when the insertion of the tubular body 40 is in close contact with the outer circumferential surface of the tubular body 40 is to hold the tubular body 40 is not separated.

On the inner circumferential surface of the fixing part 20, the guide protrusion 21 for guiding the up and down bending of the protrusion part 24 is formed to protrude into an uneven shape.

On the other hand, the reference numeral 30 denotes a tubular connector that is inserted into the fixing part 20 directly to accommodate the tubular body 40, the tubular connector 30 is formed with an elastic piece 31 of a predetermined length is extended On the outer circumferential surface of the elastic piece 31, a locking protrusion 32 for fitting to the locking end portion 26 protrudes outward.

Referring to the operation and effects of the present invention configured as described above are as follows.

When the O-ring 12 is inserted into the locking jaw 11 of the main body 10 and the fixing part 20 is forcibly inserted into the inner circumferential surface of the main body 10, the fixing part 20 is connected to the main body (see FIG. 2). 10) It is pressed into the inside and combined.

At this time, the fixing part 20 is in close contact with the inner circumferential surface of the main body 10 is fixed to the fixing piece 23 protruding on the outer circumferential surface so that the fixing portion 20 does not come off from the main body 10.

In this state, as shown in FIG. 3, when the tubular connector 30 is inserted into the fixing part 20, the locking protrusion 32 of the tubular connector 30 is fitted to the locking end 26 of the fixing part 20. Also, while the elastic piece 31 is inserted, the protrusion 24 of the fixing piece 23 is bent to bend at a predetermined angle as shown in FIG. 3, wherein the protrusion 24 is guided to the guide protrusion 21. The bending motion is made stable.

And, as shown in Figure 4 when inserting the tubular body 40 into the elastic piece 31 of the tubular connector 30, the end portion of the tubular body 40 penetrates the elastic piece 31 of the fixing portion 20 It is inserted into the O-ring 12 of the main body 10 while expanding the protrusion 24 of the release preventing piece 22 which protrudes inward and is in close contact with the locking jaw 11.

As the tubular body 40 is inserted as described above, as the expansion preventing member 22 expands, the protrusion 24 of the release preventing member 22 is firmly hung on the outer circumferential surface of the tubular body 40. It will prevent departure.

In this state, as shown in FIG. 5, when the tubular connector 30 is further inserted into the fixing part 20, the elastic piece 31 further expands the protrusion 24 so that the tubular body 40 is fixed at the fixing part 20. It can be easily separated.

6 is a plan view showing a state in which the fixing piece and the release preventing piece are inserted into the fixing part, and FIG. 7 (A). (B). (C) shows that the release preventing piece 22 has the protrusion 24. It is a cross-sectional view showing the fixing part 20 is protruded to have an insert injection molding state.

The present invention not only maintains the coupling force of the fixing portion 20 and the main body 10 by the fixing piece 23 formed on the outer circumferential surface of the fixing portion 20, the tube body 40 is inserted into the tube connector 30. Since the close contact with the protrusions 24 of the separation prevention piece 22 is improved, the bonding force of all the components for the pipe connection is improved to prevent the oil leakage and easily separated, fine foreign matter is not caught in the gap. The effect of not leaking can be expected.

As described above, the present invention includes a fixing portion fitted into an interior of a main body connecting the tubular body, and constitutes a tubular connector fitted into the fixing portion, wherein a plurality of fixing pieces are provided in the middle of the fixing portion. Insert injection is formed to protrude to the outside of the fixing portion to be fixed in close contact with the inner peripheral surface of the body,

By insert-inserting and forming an anti-separation piece in which a plurality of protrusions protrude inwardly along the inner circumferential surface of the fixing portion to fix the tube inserted into the main body,

Simplify the structure of the cartridge to improve the productivity of the product, as well as to improve the mutual coupling force between the tube, the fixed portion and the tube connector when connecting the pipeline, and to prevent the leakage of water caused by foreign substances such as hair is not caught. The effect of providing a cartridge can be expected.

Claims (3)

A main body 10 having a fluid circulating therein and a locking jaw 11 formed on an inner circumferential surface thereof; An o-ring (12) seated on an inner circumferential surface of the main body to prevent leakage of fluid circulated therein when fixing the tube; In the configuration, including, A fixing part 20 fitted inside the main body 10 for connecting the tubular body 40 and having a locking end 26 stepped on an inner circumferential surface thereof; A tubular connector 30 having an elastic piece 31 fitted into the fixing part 20, and having a locking protrusion 32 projecting from the locking end portion 26 to the end of the elastic piece 31. ), In the middle portion of the fixing portion 20 insert injection molding a plurality of fixing pieces 23 to protrude to the outside of the fixing portion 20 to be fixed in close contact with the inner peripheral surface of the main body 10, to the main body 10 The cartridge for pipe connection, characterized in that the injection molding of the separation prevention piece 22 in which the plurality of protrusions 24 protrude inwardly along the inner circumferential surface of the fixing part 20 so that the inserted pipe body 40 is fixed. The method of claim 1, The cartridge for pipe connection, characterized in that the guide protrusion 21 for guiding the up and down bending operation of the protruding portion 24 to the inside of the fixing portion 20 protruding in an uneven form. The method of claim 1, One end of the fixing piece 23, the cartridge for pipe connection, characterized in that the bent portion (23a) is formed for reinforcing the bonding strength of the fixing piece 23 inserted into the fixing part (20).

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