KR102185497B1 - Pipe with enhanced bending strength and seismic resistance - Google Patents

Abstract

The present invention relates to a pipe with an enhanced seismic function and bending strength. According to the present invention, the pipe with an enhanced seismic function and bending strength reinforces the strength of a socket pipe and maintains watertightness with a straight pipe by inserting a sealing reinforcement rubber ring into the inner circumferential surface of an outward protrusion on one side of the socket pipe. A seismic clamping means consisting of a clamping pressure ring, a pressing stopper ring, and a flange pressure ring is assembled on the outer circumferential surface and outer slope of the socket pipe. When an external force such as an earthquake is transferred to a connection portion, namely a weak portion of the socket pipe and the straight pipe in a concentrated manner, bending is prevented since the sealing reinforcement rubber ring is inserted into the inner circumferential surface of the outward protrusion on one side of the socket pipe to enhance the strength of the one side of the socket pipe. An upper and a lower support part of the clamping pressure ring divided into two are tightly attached. The flange pressure ring is fastened with a uniform force by four fastening long bolts and fastening nuts to have excellent fastening power. Specifically, the head of the fastening long bolt is tightly attached to a center support part to protect the socket pipe from an external force created when the head is not directly and tightly attached to the socket pipe. A compressing protrusion formed in a compression groove of the stopper ring is compressed on the outer circumferential surface of the straight pipe to prevent separation of the straight pipe and the socket pipe to prevent damage and deformation.

Description

Pipe with enhanced bending strength and seismic resistance

The present invention relates to a pipe with reinforced bending strength and seismic function, and in detail, it is configured to prevent separation of the straight pipe coupled to the knitting pipe, and to prevent damage such as splitting of the knitting pipe due to an earthquake or force generated during construction. .

In general, pipes used for water and sewage are made of hard polyvinyl chloride having impact resistance, and to connect these pipes, heat is applied to form an expansion pipe on one side, and a straight pipe that is not expanded is inserted to connect it. do. Such a pipe connection portion cannot withstand the pressure of tap water, so it is reinforced with a clamp or a separation preventing member inside prevents mutual separation.

In this way, the prior art for reinforcing connection of water and sewer pipes includes Registration Patent No. 10-0905299 (name of the invention: clamp for connecting water pipes), Registration Patent No. 10-1279933 (name of the invention: clamp for synthetic resin pipes) and Patent Publication No. 10-2017-0082268 (name of the invention: clamp for connecting water pipes) has been provided.

Such a clamp for connecting water pipes of the prior art is composed of a clamp to sufficiently withstand the high-pressure water pressure applied to the expansion pipe formed to connect the first and second pipes made of synthetic resin pipes, thereby constituting the expansion part with weakened strength. The strength of the first stepped part between the 1st and 2nd pipes has been reinforced, and the clamp itself is doubled as a support piece and a support to securely fix the connection part of the 1st and 2nd pipes. Deformation is prevented, and separation of the first and second pipes is prevented, thereby providing the effect of smooth water supply.

However, these clamps are squeezed and fixed to the outer circumferential surface of the expansion part of the 1st pipe and the 2nd pipe by the clamping jaws of the 1st and 2nd pressure rings, and as the connecting part of the 1st and 2nd pipes is stably fixed, it sufficiently withstands the water pressure of the water line. However, there is a problem in that the first pipe is separated from the expansion portion of the second pipe and from the first and second pressure rings at the same time as the first pipe is separated from the expansion portion of the second pipe due to a large external force such as an earthquake.

In addition, the clamp for synthetic resin pipes of the prior art can be applied to both flat water pipes and general pipes, and can be applied regardless of the type and length of the expansion part, thereby providing an effect that can be applied to various types of synthetic resin pipes.

However, these clamps press and fix the outer circumferential surfaces of both sides of the pipe only with the wedges formed on the pressure rings on both sides, so the connection part of the pipe can withstand the water pressure generated in the normal water line, but the connection part of the pipe is There was a structural problem of being unable to endure and deviating.

In addition, in the prior art water pipe connection clamp, a pair of grip bands surround the connection pipe in a gripped state, and a semicircle band surrounds the socket pipe so that it can be slipped, so that the socket pipe and the connection pipe are connected to be stretchable and contractive. The band enables a pair of grip bands and a pair of semicircle bands to each be maintained in a temporary assembly state, so that the operator alone can

Since the bolt and nut fastening work can be performed in order on the four lug flanges, it is possible to reduce the number of working people and prevent the bolt from spinning when fastening the nut to the bolt.

However, these clamps are crimped and fixed to the connector and socket pipe by connecting them with a pair of grill bands, semicircle bands, and sidebars, so that the connection part between the connector and the socket pipe is stably fixed, which can withstand the water pressure of the water line. The structure or the large external force such as an earthquake has a problem that it is separated from the connector pipe and the socket pipe, and is separated from the grill band and the semi-circular band, thereby causing damage.

The present invention has been conceived to solve such a conventional problem, and the object of the present invention is to prevent the separation of the straight pipe that is coupled to the knitting pipe, and to prevent damage such as splitting of the knitting pipe by force generated during earthquake or construction. It is to provide a pipe with enhanced bending strength and seismic resistance.

The problem-solving means of the present invention for achieving the above object comprises: a knitting pipe integrally formed with an outward protrusion having an inner and outer inclined surface formed on an inner and outer peripheral surface of one end thereof; A sealing reinforcing rubber ring in which an inclined surface is formed on the outer circumferential surface so as to be inserted in close contact with the inner inclined surface of the outward protrusion constituting the watertight pipe, and a coupling hole through which the straight pipe is coupled is formed in a central region to maintain watertightness; It consists of a clamping pressure ring that is in close contact with the outer sloping surface of the outward protrusion and the outer circumferential surface of the knitting pipe, a compression stopper ring that is pressed into the outer circumferential surface of the straight pipe, and a flange pressure ring that is in close contact with the outer circumferential surface of the compression stopper ring and fastened and fixed as a clamping pressure ring and a fastening member It is characterized by consisting of a seismic clamping means to prevent separation and separation of the straight pipe and the straight pipe by an external force.

According to the present invention, a sealing reinforcing rubber ring is inserted into the inner inclined surface of the outward protrusion formed on one side of the knitting pipe to reinforce the strength of the knitting pipe and at the same time maintain watertightness with the straight pipe, and a clamping pressure ring on the outer inclined surface of the outward protrusion and the outer peripheral surface of the knitting pipe , When the seismic clamping means consisting of a compression stopper ring and a flange pressure ring is assembled and the external force such as an earthquake is intensively transmitted to the connection part between the straight pipe and the braid pipe, that is, the weak part, the sealing reinforcing rubber ring is tightly inserted into the inner slope of the outward protrusion. As the strength of one side of the braiding pipe is reinforced, bending is prevented, the upper and lower supporting pieces of the clamping pressure ring divided into two are closely attached, and fastened with a uniform force with the flange pressure ring as 4 fastening bolts and fastening nuts. The fastening force is excellent, and especially, as the head of the fastening bolt is in close contact with the central support piece of the clamping pressure ring, it is not possible to directly contact the knitting pipe, thereby protecting the knitting pipe from the external force generated, and formed inside the compression groove of the stopper ring. As the crimping protrusion is compressed on the outer circumference of the straight pipe to prevent separation of the straight pipe and the braided pipe, the effect of preventing damage and deformation is provided.

1 is a perspective view showing a combined state of a pipe with enhanced bending strength and seismic function according to the present invention.
Figure 2 is an exploded perspective view of a pipe with enhanced bending strength and seismic function according to the present invention.
Figure 3 is a configuration diagram showing a state in which the bending strength and the seismic function of the reinforced pipe is coupled according to the present invention.
Figure 4 is an exploded perspective view of the clamping pressure ring of the pipe with enhanced bending strength and seismic function according to the present invention.
5 and 6 are configuration diagrams showing a state in which a straight pipe and a braided pipe are combined as a seismic clamping means of a pipe with enhanced bending strength and seismic function according to the present invention.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

In the accompanying drawings, FIG. 1 is a perspective view showing a coupled state of a pipe with enhanced bending strength and seismic function according to the present invention, and FIG. 2 is an exploded perspective view of a pipe with enhanced bending strength and seismic function according to the present invention, FIG. 3 is a schematic diagram of a main part showing a combined state of a tube with enhanced bending strength and seismic function according to the present invention, and FIG. 4 is an exploded view of a clamping ring of a tube with enhanced bending strength and seismic function according to the present invention. It is a perspective view, and FIGS. 5 and 6 are schematic diagrams showing a state in which a straight pipe and a braided pipe are combined as a seismic clamping means of a pipe with enhanced bending strength and seismic function according to the present invention.

As shown in Figs. 1 to 6, the pipe with enhanced bending strength and seismic function according to the present invention has an outward protrusion 12 having inner and outer slopes 12a and 12b formed on the inner and outer circumferential surfaces of one end thereof. A knitting pipe 10 formed integrally; An inclined surface 21 is formed on the outer circumferential surface so as to be inserted in close contact with the inner inclined surface 12a of the outward protrusion 12 constituting the knitting pipe 10, and a coupling hole 22 to which the straight pipe 1 is coupled in the central region A sealing reinforcing rubber ring 20 that is formed to reinforce the strength of the braided pipe 10 and maintains watertightness with the straight pipe 1; The outer sloping surface 12b of the outward protrusion 12 and the clamping pressure ring 30 in close contact with the outer circumferential surface of the knitting pipe 10, a crimping stopper ring 50 that is crimped and inserted into the outer circumferential surface of the straight pipe 1, and a crimping stopper 50 ), consisting of a flange pressure ring 60 that is in close contact with the outer circumferential surface of the clamping pressure ring 30 and is fastened and fixed with a fastening member 80 to prevent separation of the flattened pipe 10 and the straight pipe 1 by external forces such as earthquakes. It consists of a seismic clamping means (70) for.

The clamping pressure ring 30 is formed to maintain a semicircular shape, and the first and second semicircular ring bodies 32 and 33 having an inner inclined surface 31a in close contact with the outer inclined surface 12b of the outward protrusion 12 on the inner peripheral surface;
The first and second semicircular ring bodies 32 and 33 are fixed so that the front surface is overlapped on the rear surfaces of the upper and lower parts, so that close contact ends 34a are formed on the lower and upper surfaces, and the first and second semicircular ring bodies 32 and 33 Upper and lower annular support pieces 35 and 36 having a seating end 34b on which the lower and upper rear surfaces are seated are formed on the front side; The first and second semicircular rings 32 and 33 are integrally protruded to correspond to the inner central region, and an inclined surface 37a in close contact with the outer inclined surface 12b of the outward protruding part 12 is formed, and the braided pipe 10 ) A central support piece 38 and 39 having a straight surface 37b in close contact with the outer circumferential surface; The first and second semicircular ring bodies 32 and 33 are integrally protruded to correspond to the lower and upper rear surfaces of the first and second semicircular rings 32 and 33, and an inclined surface 40a that is in close contact with the outer inclined surface 12b of the outward protrusion 12 is formed, and a braided pipe ( 10) A straight surface (40b) in close contact with the outer circumferential surface is formed, and the lower and upper surfaces are in close contact with the contact ends (34a) of the upper and lower annular support pieces (35, 36), and the lower support piece 41 and the upper part It consists of a support piece (42).

At this time, the inner inclined surface 31a of the first and second semicircular ring bodies 32 and 33, the inclined surface 37a of the upper and lower annular support pieces 35 and 36, the lower support piece 41 and the upper support piece The inclined surface 40a of 42 is formed at the same angle, and is in close contact with the outer inclined surface 12b of the outward protrusion 12.
In addition, the upper and lower annular support pieces (35, 36) are fixed so that the front surface is overlapped on the rear of the first and second semicircular rings (32, 33), respectively, and close contact ends (34a) are formed on the lower and upper surfaces. , The first and second semicircular bodies 32 and 33 are formed with seating ends 34b on which the lower and upper rear surfaces are seated.
The crimping stopper ring 50 has a crimping hole 52 having a plurality of reverse crimping protrusions 52a compressed on the outer circumferential surface of the straight pipe 1 is formed on the inner circumferential surface, and a downward inclined surface 54 is formed on the outer circumferential surface, and itself A cut surface 54a is formed in the central region so that elastic force is provided.

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The flange pressure wheel 60 includes an inner circular plate 62; An outer circular plate 64 integrally protruding from the outer central region of the inner circular piece 62; It is formed through the central region of the inner circular plate 62 and the outer circular plate 64, and consists of an inclined hole 66 having an inclined surface 66a that is in close contact with the outer peripheral surface of the downwardly inclined surface 54 of the compression stopper ring 50.

The fastening member 80 includes a plurality of fastening holes 82 formed in the first and second semicircular rings 32 and 33 and the upper and lower annular support pieces 35 and 36; A plurality of assembly holes 84 formed in the outer circular plate 64 to be in communication with the fastening holes 82; A plurality of fastening bolts that are coupled through the fastening hole 82 and the assembly hole 84 to which the head is in close contact with the outer side of the lower support piece 41 and the upper support piece 42, and the central support piece 38 and 39. 86) and; It consists of a fastening nut 88 that is fastened to the fastening bolts 86 and assembled by maintaining the first and second semicircular rings 32 and 33 in a circular shape.

The assembly and operation state of the pipe having the enhanced bending strength and seismic function according to the present invention configured as described above will be described schematically.

1 to 3, by inserting the inclined surface 21 of the sealing reinforcing rubber ring 20 to the inner inclined surface 12a of the outward protrusion 12 constituting the knitting pipe 10, the outward direction of the knitting pipe 10 After reinforcing the protrusion 12, insert the straight pipe (1) into the coupling hole (22) of the sealing reinforcing rubber ring (20) and the inner diameter of the knitting pipe (10), and the end is sealed through the outer circumferential surface of the straight pipe (1). The compression hole 52 of the compression stopper 50 is elastically inserted in close contact with the ring 20.

In this state, the clamping pressure wheel 30 on the outer circumferential surface of the outer sloping surface 12b of the outward protrusion 12 and the knitting pipe 10, and the flange pressure ring 60 on the downwardly inclined surface 54 of the compression stopper ring 50, are in close contact. And, by fastening with the fastening member 80, the seismic clamping means 70 is stably assembled.

That is, as shown in Fig. 4, the seating end of the front of the upper and lower annular support pieces 35 and 36 fixed to correspond to the upper and lower portions of the first and second semicircular rings 32 and 33 constituting the clamping pressure wheel 30 In (34b), the first and second semicircular rings 32, 33, the lower and upper rear surfaces are seated, and the upper and lower annular support pieces 35, 36, at the close contact ends 34a of the lower and upper surfaces, The first and second semicircular ring bodies (32, 33) by closely contacting the lower and upper surfaces of the lower and upper support pieces 41 and 42 formed to correspond to the lower and upper rear surfaces of the first and second semicircular rings ( 32) While assembling (33) in a circular shape, the inner inclined surface (31a) and the lower support piece (41), the upper support piece (42) and the central support piece (38) of the first and second semicircular ring bodies (32, 33) The inclined surfaces 37a and 40a of (39) are in close contact with the outer inclined surface 12b of the outward protrusion 12, and the lower support piece 41, the upper support piece 42, and the central support piece 38, 39 The straight surfaces 37b and 40b of are in close contact with the outer circumferential surface of the knitting pipe 10.

Next, the inclined surface 66a of the inclined hole 66 constituting the flange pressure ring 60 is inserted and in close contact with the downward inclined surface 54 of the outer circumferential surface of the compression stopper ring 50.

In this state, a plurality of assembly holes 84 formed in the outer circular plate 64 and the fastening holes 82 formed to correspond to the first and second semicircular rings 32 and 33 and the upper and lower annular support pieces 35 and 36 ) Through the fastening bolts 86 and 87 are sequentially coupled.

Then, as shown in Fig. 5, the first and second semicircular rings 32, 33, the fastening holes 82 of the upper and lower annular support pieces 35, 36, and the assembly holes 84 of the outer circular plate 64 The head of the fastening bolt 86, which is coupled through, is in close contact with the upper surface of the lower support piece 41 and the upper support piece 42, and the first and second semicircular rings 32 and 33 as shown in FIG. The head of the fastening bolt 86 coupled through the fastening hole 82 and the assembly hole 84 of the outer circular plate 64 is in close contact with the upper surface of the central support pieces 38 and 39.

Next, if the fastening nuts 88 are sequentially fastened to the fastening bolts 86 and 87, the first and second semicircular ring bodies 32 and 33 are assembled while maintaining a circular shape, and at the same time, straight pipe with the knitting pipe 10 (1) deviation is prevented.

In the case of the reinforced bending strength and seismic function that is assembled and maintained in this way, when an external force such as an earthquake occurs, the external force is mainly applied to one side of the knitting pipe 10 to which the knitting pipe 10 and the straight pipe 1 are connected. .

At this time, the sealing reinforcing rubber ring 20 is closely inserted into the inner diameter of one side of the braiding pipe 10 to prevent bending as the strength is reinforced, and the clamping pressure ring as the four fastening bolts 86 and 87 and the fastening nut 88 The fastening force is excellent by fastening 30 and the flange pressure ring 60 with a uniform force, and the compression protrusion 52a formed in the compression groove 52 of the stopper ring 50 is compressed to the outer circumference of the straight pipe 1 As a result, the straight pipe 1 and the knitting pipe 10 are prevented from being separated.

The pipe with enhanced bending strength and seismic function according to the present invention described above is not limited to the above-described embodiment, and is not departing from the gist of the present invention as claimed in the following claims. Anyone with knowledge would have the technical idea to the extent that various changes can be implemented.

1: Intuition 10: Editing
10: edit pipe 12: outward protrusion
12a, 12b: inner and outer slopes 20: sealing reinforcing rubber ring
21: slope 22: coupling hole
30: clamping pressure wheel 31a: inner slope
32,33: 1st, 2nd semicircular ring body 34a: Close contact end
34b: seating end 35,36: upper and lower annular support pieces
37a,40a: inclined surface 37b,40b: straight surface
38,39: central support piece 41: lower support piece
42: upper support piece 50: compression stopper ring
52a: compression protrusion 52: compression hole
54: downward slope 54a: cut surface
60: flange pressure wheel 62: inner circular plate
64: outer circular plate 66: oblique hole
66a: slope 70: seismic clamping means
80: fastening member 82: fastening hole
84: assembly work 86: fastening bolt
88: tightening nut

Claims (5)

A knitting pipe 10 integrally formed with an outward protrusion 12 having an inner and outer inclined surface 12a, 12b formed on the inner and outer peripheral surfaces of one end thereof;
An inclined surface 21 is formed on the outer circumferential surface so as to be inserted in close contact with the inner inclined surface 12a of the outward protrusion 12 constituting the knitting pipe 10, and a coupling hole 22 to which the straight pipe 1 is coupled in the central region A sealing reinforcing rubber ring 20 formed to maintain strength and watertightness;
A clamping pressure ring 30 that is in close contact with the outer circumferential surface of the outer inclined surface 12b of the outward protrusion 12 and the outer circumferential surface of the knitting pipe 10, a crimping stopper ring 50 that is crimped and inserted into the outer circumferential surface of the straight pipe 1, and a crimping stopper ring ( 50) is composed of a clamping pressure ring 30 and a flange pressure ring 60 that is fastened and fixed with a fastening member 80 to prevent separation of the flattened pipe 10 and the straight pipe 1 by external force. In the pipe with reinforced bending strength and seismic function consisting of the seismic clamping means 70,
The clamping pressure wheel 30 is
First and second semicircular ring bodies 32 and 33 formed to maintain a semicircular shape and having an inner inclined surface 31a in close contact with the outer inclined surface 12b of the outward protrusion 12 on the inner peripheral surface;
The first and second semicircular ring bodies 32 and 33 are fixed so that the front surface is overlapped on the rear surfaces of the upper and lower parts, so that close contact ends 34a are formed on the lower and upper surfaces, and the first and second semicircular ring bodies 32 and 33 Upper and lower annular support pieces 35 and 36 having a seating end 34b on which the lower and upper rear surfaces are seated are formed on the front side;
An inclined surface 37a which is integrally protruded to correspond to the rear central region of the first and second semicircular rings 32 and 33 and in close contact with the outer inclined surface 12b of the outward protruding part 12 is formed, and a braided pipe ( 10) a central support piece 38 and 39 having a straight surface 37b in close contact with the outer circumferential surface;
The first and second semicircular rings 32 and 33 are integrally protruded to correspond to the lower and upper rear surfaces of the first and second semicircular rings 32 and 33, and an inclined surface 40a in close contact with the outer inclined surface 12b of the outward protrusion 12 is formed, and (10) A bent, characterized in that a straight surface 40b in close contact with the outer circumferential surface is formed, and the lower and upper surfaces are composed of a lower support piece 41 and an upper support piece 42 in close contact with the contact end 34a. Pipes with enhanced strength and seismic resistance. delete The method of claim 1, wherein the compression stopper ring (50) is
A crimping hole 52 having a plurality of reverse crimping protrusions 52a compressed on the outer circumferential surface of the straight pipe 1 is formed on the inner circumferential surface, and a downwardly inclined surface 54 is formed on the outer circumferential surface, and is located in the central region so as to have its own elastic force A pipe with enhanced bending strength and seismic function, characterized in that the cut surface 54a is formed. The method of claim 1, wherein the flange pressure wheel (60) is
An inner circular plate 62;
An outer circular plate 64 integrally protruding from the outer central region of the inner circular piece 62;
Consisting of an inclined hole 66 having an inclined surface 66a formed through the central region of the inner circular plate 62 and the outer circular plate 64 and in close contact with the outer circumferential surface of the downwardly inclined surface 54 of the compression stopper ring 50 A pipe with enhanced bending strength and seismic resistance. The method of claim 1, wherein the fastening member (80)
A plurality of fastening holes 82 formed in the first and second semicircular ring bodies 32 and 33 and the upper and lower annular support pieces 35 and 36 of the clamping ring 30;
A plurality of assembly holes 84 formed in the outer circular plate 64 to correspond to the fastening holes 82;
The head is coupled through the fastening hole 82 and the assembly hole 84 to protect the knitting pipe 10, the lower support piece 41 and the upper support piece 42, the upper part of the central support piece 38, 39 A fastening bolt 86 in close contact with the surface;
It is fastened to the fastening bolt 86 so that the first and second semicircular ring bodies 32 and 33 are assembled while maintaining a circular shape, and a fastening nut 88 that prevents separation of the straight pipe 1 and the braided pipe 10 A pipe with enhanced bending strength and seismic resistance, characterized in that it is constructed.

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