KR100750044B1 - Pipe connect - Google Patents

Abstract

A pipe connecting pipe is provided to simplify a work, reduce parts, and flexibly change an angle according to an installation space by being integrally formed of rubber material. A pipe connecting pipe includes a body(10), a reinforcing member, and a packing(20). The body is formed of rubber in order to provide flexibility of an angle change according to an installation space. The packing is injection-molded in the body. The reinforcing member is integrally formed in the body so as to increase compression strength and tensile strength. A space(50) is formed to operate water pressure between the body and the packing. A separation prevention projection(80) protrudes from a set position in the body. A separation prevention hole(31) is formed at a set position of a pipe(30) so that the separation prevention projection and the separation prevention hole are inserted into each other to prevent excessive insertion and separation with each other.

Description

Pipe Connect

1 (a) is a cross-sectional view showing the most basic structure of the present invention,

Figure 1 (b) is a cross-sectional view of Figure 1 (a) showing the connection state of the pipe,

Figure 2 (a) is a cross-sectional view showing another embodiment of the packing of the present invention,

Figure 2 (b) is a cross-sectional view of Figure 2 (b) showing the connection state of the pipe,

Figure 3 (a) is a cross-sectional view of the inner portion of the present invention,

(B) is sectional drawing along the A-A line | wire of (a),

4 is a cross-sectional view showing another embodiment of the round bar of the present invention,

FIG. 5 is a partially cutaway perspective view of the end-side round jaw of FIG. 4;

Figure 6 (a) (b) is a cross-sectional view showing another embodiment of a state in which the reinforcing member of the net is built in the joint pipe body of the present invention,

Figure 7 (a) (b) is a cross-sectional view showing another embodiment of a state in which the reinforcing member of the steel sheet pipe is embedded in the joint pipe body of the present invention,

8 is an exemplary view showing a curved state of the joint body when the pipe is connected.

Explanation of symbols on the main parts of the drawings

10: fitting pipe body 20: packing

30: Pipe 31: A separation prevention hole

40: reinforcing member 50: space

60: round chin 70: insertion prevention protrusion

80: release prevention protrusion

The present invention relates to a pipe joint pipe, in particular, to integrate the material made of rubber to be completed by simply inserting the pipe at the end of the joint to simplify the work while reducing the parts and flexibility of the angle change according to the installation location The present invention relates to a pipe fitting pipe invented to be provided.

In general, a pipe is used to transfer a fluid such as a liquid or a gas, and the pipe is made of various shapes and materials according to the characteristics and use of the fluid to be transported. Separate connection means is required.

Therefore, conventionally, as the most basic connecting means, the flanges are integrated at the ends of both pipes, and these flanges are assembled with bolts and nuts, and rubber packing is installed between the flanges to prevent leakage. Since a number of bolts and nuts must be used, there is a problem that the work efficiency decreases due to the delay and inconvenience of the work process for these assembling, and the pipe type for the angle change cannot be used for the straight pipe connection.

In order to improve the connection means of the flange, a new synthetic resin joint pipe has been developed, which is a utility model registration application (Registration No. 288643), that is, the configuration of the pipe to prevent leakage in the body of the joint pipe to connect each other In order to prevent the leakage by squeezing the packing and insert it into the outer circumferential surface of the pipe to be connected, and then to prevent the separation of the packing by water pressure, the holder and the stopper are screwed to the main body and the holder is The pipe was configured to be crimped to connect the pipes.

Such a joint pipe is inserted into the main body through a stopper, a holder, and a packing order when the pipe is inserted into the main body while the stopper is released so as not to press the outer peripheral surface of the pipe to which the holder is connected when the pipe is connected. It is gradually tapered toward the end, and is smaller than the outer circumferential surface of the pipe and is tapered to form a conical shape.The end portion is stretched to elastically adhere to the outer circumferential surface of the pipe. As the stopper proceeds, the holder is pressurized by the stopper, and the holder being pressurized supports the packing so as not to be pushed by the water pressure and simultaneously compresses the outer circumferential surface of the pipe to complete the connection work of the pipe.

Such a joint pipe has the advantage that the work process is easier than the conventional flange connection means, but with the following problems,

First, in order to maintain the strength of the joint pipe, the main body, holder, and stopper, except for the packing, are molded by synthetic resin, and then assembled one by one to manufacture one joint pipe, which causes delays in assembly work and decreases in work efficiency. There was a problem,

Second, the main body, holder, stopper, etc., because the material is different from the packing made of rubber, there is a problem that must be molded separately assembled,

Third, there is a possibility that the packing is separated from the main body when the action of hydraulic pressure may lose the sealing force, so in order to increase the sealing force of the main body and the packing, the holder must be pressurized by screwing the cap, so a tool for tightening the cap is needed separately. There are,

Fourth, there was a problem that the main body can not be used as an angle deformation due to the nature of the material should be used only in a straight pipe.

The present invention has been invented to solve such a conventional problem, by integrating the material of the pipe joint pipe made of rubber and simply completed by assembling the pipe joint at the same time to simplify the work and at the same time reduce the parts and installation place This is to give flexibility of the angle change according to.

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It is an object of the present invention to form the packing integrally in the joint pipe body to simply insert and assemble when the pipe is connected to complete the assembly at the same time injection molding the pipe joint pipe body made of rubber to increase the flexibility of angular deformation according to the installation location In order to provide, by forming a round jaw in the pipe to be joined, the main body and the pipe can be located on the same center line when the pipe is fitted so that the packing can be accurately combined so as not to be biased on either side.
Another purpose is to protrude the release preventing projection at the set position in the joint pipe body, and at the same time to form a release preventing hole at the set position of the pipe to prevent the excessive insertion of the separation prevention hole and the separation preventing hole when the pipe is connected to each other. It is to prevent.

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As a technical means for achieving this object of the present invention,

In the joint pipe main body, it is gradually tapered in cross section as it goes toward the end toward the inner side and has a smaller inner diameter than the outer circumferential surface of the pipe and is tapered to form a conical shape, so that space is formed between the joint pipe main body and the packing to act as a hydraulic pressure. In the pipe joint pipe which prevents water leakage at the time of pipe connection,

In order to give flexibility of angular deformation according to the installation location, the rubber tube is molded by injection molding, and the injection molding is carried out in the joint tube body to be integrated with itself. It is a basic feature of the present invention that the leak prevention and connection work of the pipe is completed by.

It is to be noted that the body of the fitting pipe can be applied to any of the fitting pipes, such as --shape, T-shape and elbow type.

The joint pipe main body is injection molded by integrally embedding a reinforcing member to withstand the compressive strength and tensile strength set within the outer circumferential surface or its thickness, and the reinforcing member is injection molded over the entire length of the cross section or embedded in a predetermined size at regular intervals. You may. The reinforcing member is a secondary feature of the present invention to endure the strength acting in the circumferential direction by embedding a net or steel plate made of a synthetic resin or metal made of a tubular shape cut into a tubular shape or a certain standard. In this case, when using a strip-shaped tube as a reinforcing member, any other shape may be used as long as its cross section is a shape capable of increasing strength, such as a? -Shaped,? -Shaped,? -Shaped,? -Shaped, triangular, and uneven shape.

In addition, it is an additional feature of the present invention that the fitting is formed so as not to be biased toward any one side by forming a round jaw at the end and the inside of the fitting pipe body so that the fitting pipe body and the pipe are positioned on the same center line when the pipe is fitted. At this time, the inner diameter of the round jaw is slightly larger than the outer diameter of the pipe to smoothly move in and out of the pipe, and is formed too large so that foreign matters are not introduced or buried in the ground so that the pipe cannot be inserted.

The round jaw may have a uniform thickness and uniformly protrude along the circumferential surface, or may have a uniform protrusion such as a semicircle or a square on the circumferential surface. In this case, the inner jaw should be set so that the fluid can move between the round jaw and the pipe. Preferably, the projection protrudes to allow the fluid to flow between the projections, thereby inducing a smooth flow.

An additional feature of the present invention is that the insertion preventing protrusion protrudes at a predetermined position in the fitting pipe main body to prevent excessive insertion when the pipe is connected. This prevents the pipe from being inserted too much and prevents the pipe from being inserted from the other side, so that the other pipe is not squeezed into the packing and leaks, or the pipe is not inserted to the set position. It is to solve the problem.

At the same time, the separation preventing protrusion is formed at the set position of the pipe at the set position in the main body of the pipe, and the separation preventing projection and the separation preventing hole are inserted into each other when the pipe is connected to each other to prevent excessive insertion as well as the insertion preventing protrusion. It is an additional feature of the present invention to prevent it.

The separation preventing protrusion protrudes one or two or more symmetrically, it will be revealed that it may protrude on the inner circumferential surface of the joint pipe body or protrude on the annulus. At this time, the separation prevention projections are preferably formed at a certain interval so as not to overlap with the packing, because there is a fear that the packing prevents the separation prevention motive of the joint pipe body and the separation prevention hole of the pipe.

The packing is formed so as to be located between the end and the inner jaw, and formed in one or more than two, if the first packing is aging due to the repetition of the pressing action according to the hydraulic action is not elastically stretched and then leaked It is an additional feature of the present invention to prevent leakage by double packing to prevent leakage.

Hereinafter, an embodiment of the present invention will be described as follows. The embodiment of the present invention shows a? -Shaped pipe fitting pipe, but it is understood that the present invention can be applied to any type of pipe fitting pipe without being limited thereto.

Figure 1 (a) is a cross-sectional view showing the most basic structure of the present invention, Figure 1 (b) is a cross-sectional view of Figure 1 (a) showing the connection state of the pipe, Figure 2 (a) is another of the packing of the present invention Figure 2 is a cross-sectional view showing an embodiment, Figure 2 (b) is a cross-sectional view of Figure 2 (b) showing a connection state of the pipe, Figure 3 (a) is a cross-sectional view taken from the inner portion of the present invention, Figure 3 (b) ) Is a cross-sectional view taken along line AA of Figure 3 (a), Figure 4 is a cross-sectional view showing another embodiment of the circular jaw of the present invention, Figure 5 is a partial cutaway perspective view showing the end side of Figure 4, Figure 6 ( a) (b) is a cross-sectional view showing another embodiment of a state in which the reinforcing member of the net is incorporated in the joint pipe body of the present invention, and FIG. 7 (a) (b) shows a steel sheet pipe in the joint pipe body of the present invention. 8 is a cross-sectional view showing another embodiment of a state in which a reinforcing member is built, and FIG. 8 is an exemplary view showing a curved state of a joint pipe body when a pipe is connected.

Figure 1 shows a basic pipe joint of the present invention, the pipe joint is composed of a joint pipe body 10 and the packing 20.

The joint pipe body 10 may be applied to any of the joint pipes, such as silver-shaped, T-shaped, elbow-type, and the injection molding is made of rubber so as to give flexibility of angular deformation when the installation place is buried.

The joint pipe main body 10 is designed to have a thickness design so as to have a compressive strength that can withstand the pressure when buried and a tensile strength that can withstand water pressure, and if necessary, according to the standard of the pipe main body 10, for example, If the size of the (30) is large, the pipe fittings corresponding thereto also need to meet the standard within the thickness of the fitting pipe body 10 in order to increase the compressive strength and tensile strength of the fitting pipe body 10 as shown in Figs. The injection molding is integrated into the reinforcing member 40.

The reinforcing member 40 may be injection molded over the entire length of the cross section as shown in FIGS. 6 (a) and 7 (a) or may have a size set as shown in FIGS. 6 (b) and 7 (b) at regular intervals. The reinforcing member 40 may be made of synthetic resin or metal mesh as shown in FIG. 6 (a) (b), or may be made of a strip-tubular shape in which the steel sheet is cut into a tubular shape or a predetermined size as shown in FIG. 7 (a) (b). To withstand the circumferential strength.

The packing 20 is injection molded into the fitting body so as to be integrated with the fitting body 10 by itself, and the packing 20 gradually becomes thin in cross-section as it goes toward the end toward the inner side of the fitting body 10. The inner diameter is smaller than the outer circumferential surface of the pipe 30 and is tapered to form a conical shape, and a space 50 is formed between the joint pipe body 10 and the packing 20 to prevent water leakage when the pipe is connected. do.

That is, the packing 20 is to prevent the leakage of the pipe and the connection work by the fitting pipe body 10 and the packing 20 by only fitting the pipe when the pipe 30 is connected.

The packing 20 is to compress the outer circumferential surface of the pipe 30 while the tapered end is gradually stretched elastically when the pipe 30 is fitted, it is possible to prevent the leakage of fluid, and also the packing ( Since water pressure is applied to the outer circumferential surface of 20), it is possible to more reliably prevent leakage.

At this time, the feature of the present invention is that the packing 20 is injection molded integrally with the fitting pipe body 10, so that it can be prevented from being pushed due to the action of water pressure, so that the separate fixing means for preventing the departure of the conventional packing It can reduce the number of parts and simplify the assembly work.

The packing 20 is formed so as to be located between the end and the inner end of the fitting tube body 10, as shown in Figure 1 and 2, one or two or more in accordance with the standard of the pipe fitting pipe is installed according to the water pressure Form.

And by forming the round jaw (60) in the end and the inner side of the joint pipe body 10, respectively, the fitting pipe body 10 and the pipe 30 when the pipe is fitted as shown in (b) and (b) Positioned on the same center line supports the pipe 30 so that the packing 20 is not biased to either side.

At this time, the inner diameter of the round jaw (60) is slightly larger than the outer diameter of the pipe (30) to facilitate the entrance and exit of the pipe, too large to form foreign matter when buried in the ground or too small to insert the pipe (30) Do not have this.

The circular projection 60 may be uniformly projected on the circumferential surface such as semicircular, square, as shown in FIGS. 1 to 3, or uniformly projected along the circumferential surface with a constant thickness as illustrated in FIGS. 4 and 5. It may be.

The insertion prevention protrusion 70 protrudes at a predetermined position in the fitting pipe body 10 to prevent excessive insertion when the pipe 30 is connected.

And as shown in Figure 3 at the time of connecting the pipe 30 by forming a departure prevention hole 31 at the set position of the pipe 30 while projecting the separation prevention projection 80 at the set position in the fitting pipe body (10). The anti-separation protrusion 80 and the anti-separation hole 31 are fitted to each other to prevent excessive insertion as well as the anti-separation together with the insertion preventing protrusion 70.

The separation preventing protrusion 80 protrudes to the annulus 60 or directly to the inner circumferential surface of the fitting pipe main body 10 as shown in FIG. 3, and may be protruded symmetrically from one to two or more if necessary.

According to the present invention configured as described above, one end of one pipe and one end of the other pipe are respectively inserted into one side of the joint pipe body 10 at the time of connection of the pipe 30 embedded in the ground as shown in FIG. If any one of the inserts may be inserted first), the pipe 30 is naturally inserted under the guidance of the end portion (inlet side) of the fitting pipe main body 10, and the end of the pipe 30 is once inserted. As the portion presses the conical end portion of the packing 20, one end of the pipe 30 slides along the inner surface of the packing 20, thereby expanding the packing 20 itself. By compressing elastically by the outer peripheral surface of the pipe (30).

 In this case, when two or more packings 20 are formed as shown in FIG. 2 (b), the packings 20 have the same function as described above, thereby preventing leakage of the double, and also double pipe ( Since the outer circumferential surface of 30) is compressed, it is to be fixed by preventing the separation of the pipe 30 naturally.

On the other hand, the continuous insertion of the pipe 30, as shown in Fig. 1 (b) is one end of the pipe 30 is caught in the insertion preventing projection 70 protruding inside the fitting body 10, preventing further insertion When the pipe 30 is excessively inserted and prevents the insertion of the pipe inserted from the other side, the other pipe is leaked because it is not compressed to the packing, or the pipe is not inserted to the set position so that the leak is not compressed with the packing. This is to solve the problem of assembly work.

In addition, when one end of the pipe 30 is no longer inserted by the insertion preventing projection 70, the separation prevention hole 31 formed in the set position of the pipe 30 as shown in Figure 3 of the joint pipe body 10 The separation prevention projections 80 are fitted, and when the fitting tube body 10 is elastically stretched when fitted to each other, the separation prevention projections 80 are naturally coupled to the separation prevention holes 31.

When the insertion of the pipe 30 is completed to the set position, the pipe 30 is uniform between the inner diameter of the pipe body 10 and the outer diameter of the pipe 30 by the inner end of the round jaw 60 (inlet side) and the inner side. A space 50 is formed, which is a uniform formation of the space 50 so that the packing 20 is in close contact with the pipe 30 when the hydraulic pressure is applied to act on the outer circumferential surface of the packing 20 at the same pressure. By increasing the compressive force is to prevent the loss of the compressive force of the packing 20 due to the imbalance.

After connecting the pipe 30, there is no reason to normally separate the pipe body 10 and the pipe 30, but after embedding any external force acts on the pipe 30, the pipe 30 is the pipe body ( When the situation is to be separated from the packing 20 of 10) the packing 20 is fixed by pressing the outer peripheral surface of the pipe 30, but the elastic packing 20 to hold the pipe 30 to the end Since the packing 20 and the pipe 30 are separated from each other, there is a risk of leaking, and at this time, the separation preventing protrusion 80 and the pipe 30 protruding inside the joint pipe body 10 may occur. By holding the separation prevention hole 31 of the elasticity is to hold it elastically to prevent the separation of the pipe 30, if the external force is applied to the packing 20 and the pipe 30 is separated and leaked Which uses any pipe fitting Also because the same leakage problems this case is to be newly constructed to the pipe fitting and the pipe is unavoidable.

Therefore, the pipe connection work of the present invention can significantly shorten the work efficiency and time in the field because the assembly work is completed by simply fitting the pipe to the pipe joint.

In this way, the fluid flows along the pipeline when the water pressure is applied after the pipe work, and the hydraulic pressure acts on the joint pipe body 10 of the pipe joint pipe through which the fluid flows, so that water pressure is applied to the outer circumferential surface of the packing 20. It is applied, the elasticity of the packing 20 by the water pressure acts to further squeeze and seal the outer peripheral surface of the pipe 30 can be surely prevent the fluid leakage between the pipe 30 and the packing 20. .

When the packing 20 is formed in two or more, if the first packing is aging due to the repeated pressing action according to the hydraulic action and is not elastically stretched and leaks, the next packing blocks the leakage. The effect is to prevent leakage.

And when the pipe is connected to the pipe at almost right angles in buried work, an elbow type pipe pipe may be used, but when connected at a slight acute angle as shown in Figure 8 is set using the elasticity of the pipe body 10 Since the connection through the above-mentioned connection work bent at an angle is that there is no need to increase the parts for additional angle adjustment or design change.

6 and 7, the compressive strength and tensile strength of the joint pipe body 10 are rather than simply injection molded of rubber by integrally injection molding the reinforcing member 40 in the thickness of the pipe body 10. When the reinforcing member 40 is made of synthetic resin or metal mesh, or when using a strip-shaped steel tube, the bent member increases the tensile strength and compressive strength of the joint pipe body 10 and at the same time bends the set angle. There is an advantage in that it is possible to bend the joint pipe main body 10 in the case of built-in steel pipe as a whole, but since the tensile strength and the compressive strength of the joint pipe main body 10 are much higher than those described above, It may be desirable to selectively install according to the site.

As described above, the present invention integrates the pipe joint pipe made of rubber to be completed by simply inserting the pipe at the joint, thereby simplifying the work and at the same time, reducing the parts and providing flexibility in changing the angle according to the installation location. There is.

Claims (22)

delete delete delete delete delete delete delete In the fitting pipe main body 10, the taper is formed in a conical shape such that the taper is tapered in a tapered shape and gradually tapered in cross section as it goes toward the end portion toward the inner side. Space 50 is formed to act as a hydraulic pressure between the and the packing 20 is configured to prevent leakage when the pipe is connected, In order to provide flexibility of the angular deformation according to the installation place, the joint pipe body 10 which is injection molded of rubber, the packing 20 which is injection molded in the joint pipe body 10 to be integrated with itself, and the pipe 30 In the pipe joint pipe which is completed by the fitting pipe body 10 and the packing 20 to prevent the leakage of the pipe and the connection work by the fitting only when the pipe, When fitting the pipe 30, the fitting pipe body 10 and the pipe 30 are formed on the same center line, so that the packing 20 is formed by forming the round jaw 60 at the end and the inside of the pipe body 10, respectively. Configured to maintain the space 50 without biasing to either side,  The separation prevention protrusion 80 is projected at the set position in the fitting pipe main body 10, and at the same time, the separation prevention hole 31 is formed at the set position of the pipe 30. Pipe fitting pipe, characterized in that configured to prevent the excessive insertion as well as to prevent the excessive insertion and the separation prevention hole (31). 10. The pipe fitting according to claim 8, wherein the round jaw (60) has a constant thickness and protrudes evenly along the circumferential surface. 9. The pipe fitting pipe according to claim 8, wherein the round jaw (60) is uniformly protruded by a constant protrusion in any one of a semicircle and a quadrangle on the circumferential surface. The pipe fitting according to claim 8, wherein the packing (20) is formed between the end and the inner side of the fitting main body (10). delete delete delete delete delete delete delete The pipe joint pipe according to claim 8, wherein the separation preventing protrusion (80) protrudes from the round jaw (60) of the joint pipe main body (10). delete delete delete

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