KR102674169B1 - Flexible pipe joint structure that can collect displacement information on the position of water pipes - Google Patents

Abstract

The present invention relates to an expansion pipe joint structure capable of collecting positional displacement information of water pipes.
Specifically, it is an expansion pipe joint structure with a positional displacement big data collection function to improve the safety of water pipes crossing land subsidence and fault areas. It assists water pipes in the event of ground subsidence and monitors data received from sensors in case of ground subsidence, This relates to an expansion pipe joint structure capable of collecting positional displacement information of water pipes, which ensures safety by confirming and monitoring settlement information in real time.

Description

Flexible pipe joint structure that can collect displacement information on the position of water pipes}

The present invention relates to an expansion pipe joint structure capable of collecting positional displacement information of water pipes.

Specifically, it is an expansion pipe joint structure with a positional displacement big data collection function to improve the safety of water pipes crossing land subsidence and fault areas. It assists water pipes in the event of ground subsidence and monitors data received from sensors in case of ground subsidence, This relates to an expansion pipe joint structure capable of collecting positional displacement information of water pipes, which ensures safety by confirming and monitoring settlement information in real time.

The frequency of earthquakes of magnitude 5 or greater continues to increase worldwide.

In Korea, since earthquake observation began, more than 50 earthquakes of magnitude 4 or higher have been observed, with an average annual frequency of more than 40 earthquakes.

Therefore, ensuring seismic safety of buried main pipelines is an important issue for continuous and stable energy supply.

In 2022, there were 77 earthquakes of magnitude 2.0 or greater that occurred on the Korean Peninsula, and 8 earthquakes of magnitude 3.0 or greater occurred, a significant increase from the previous year.

The magnitude 4.1 earthquake that occurred in Gwansan, North Chungcheong Province in October 2022 is the largest earthquake measured since the Pohang earthquake (2022 earthquake year, Korea Meteorological Administration).

It was reported in YTN in 2023 that earthquakes of up to magnitude 7 are likely to occur due to tectonic plate collisions around the Korean Peninsula, and there is a high possibility that they will occur at depths between 4km and 10km, so thorough preparations are necessary.

After the Great East Japan Earthquake in 2011, public interest in earthquake disaster prevention has increased, and with the occurrence of the Gyeongju Earthquake (2016) and Pohang Earthquake (2017), strengthening the safety of major facilities against earthquakes has emerged as an important technical issue.

In addition, after the recent Turkiye earthquake, demands for earthquake resistance of public facilities are increasing.

Current status of earthquakes on the Korean Peninsula

Comparison of response spectra and seismic design standards of the Gyeongju Earthquake (2016) and Pohang Earthquake (2017)

In the Gyeongju earthquake (2016), the spectral acceleration values in some frequency sections exceeded the seismic design standards for domestic nuclear power and buildings, and the ground acceleration in the Pohang earthquake (2017) was lower than that of the Gyeongju earthquake, but was similar in the low frequency range to the seismic design standard snow-covered spectrum. As it was confirmed that it had a magnitude, the possibility of an earthquake exceeding domestic seismic design standards increased. Therefore, the need to actively respond to environmental changes in the Korean Peninsula, which is becoming an earthquake-prone region, is emerging.

In addition, seismic liquefaction is a representative seismic ground behavior that can cause significant damage to underground structures along with faults. The liquefaction phenomenon that occurred in Indonesia killed more than 1,000 people and damaged more than 2,000 houses, and a recent earthquake in Turkiye created a fault with a length of 300 meters and a depth of up to 40 meters.

Meanwhile, frequent seismic subsidence phenomena are reported after pavement earthquakes (Yonhap News, 2021). According to the Ministry of Land, Infrastructure and Transport, there were a total of 1,060 ground subsidence accidents that occurred between 2018 and 2022 (Underground Safety Information System), and according to the ground subsidence occurrence status data from June 2017 to June 2021, there were 279 cases in 2017 and 338 cases in 2018. It decreased to 192 cases in 2019, but is increasing to 284 cases in 2020.

It was found that land subsidence in Seoul and Gyeonggi-do was largely influenced by damage to water supply and sewerage, and there is a high risk of deep ground subsidence occurring in areas with many reclaimed land and soft ground, especially in Gyeongsangnam-do and Busan, in large areas.

The maximum ground subsidence reported in Korea was around 2.5m and occurred in Daesong-myeon, Pohang, Gyeongsangbuk-do. In the hinterland complex of Busan New Port, adjacent to Gyeongsangnam-do, ground subsidence occurred at a maximum of 1.5 m, and in most areas, it exceeded the allowable residual settlement amount (10 cm).

In addition, if damage occurs to water supply and sewage pipe facilities, serious damage may occur, such as impeding emergency vehicle passage, causing traffic accidents, water pollution, generation of odor due to unusability of toilets, deterioration of public hygiene, spread of infectious diseases, and even paralysis of urban functions. There is a very high possibility that it will result in In addition, damage to heat transmission pipes is accompanied by damage similar to water leaks in water and sewage pipes, as well as casualties due to the eruption of high-temperature steam and water. In addition, damage to energy pipes such as gas or oil can cause serious secondary damage such as explosion or fire.

According to the 2021 National Disaster and Safety Research Institute's risk list report, Gyeongsangnam-do is at risk of disasters such as earthquakes, building collapses, infrastructure collapses, and sinkholes.

In the Gyeongnam region, where there is a high risk of seismic liquefaction and ground subsidence due to the abundance of reclaimed land and soft ground, earthquake-resistant and subsidence-resistant preparations are absolutely necessary, and Gyeongsangnam-do is adjacent to the largest earthquake-prone area in the country, including the Yangsan Fault, Moryang Fault, and Miryang Fault. The Dongnae Fault exists. Faults that exist in Gyeongnam pass through or are adjacent to densely populated areas such as Yangsan and Changwon, and industrial complexes that manage hazardous and hazardous chemicals are concentrated in Yangsan and Miryang.

The Yangsan Fault is an active fault with a high possibility of earthquakes on the Korean Peninsula. The maximum possible earthquake magnitude is 6.8, and the Gyeongnam region is an area with a very high possibility of liquefaction.

The number of earthquakes in Gyeongnam since 2015 is the second highest in the country, but the seismic safety rate of facilities in the province is the lowest.

In particular, the number of earthquakes in Busan, Ulsan, and Gyeongnam regions in 2021 is the highest inland. Looking at the occurrence of earthquakes of magnitude 2.0 or higher in the Gyeongnam region by year, there is 1 in 2015, 6 in 2016, 5 in 2017, 1 in 2018, 3 in 2019, 2 in 2020, 7 in 2021, and 2022. There are 2 cases per year and more than 1 case occurs every year.

The seismic rate of hazardous materials storage facilities in the Changwon National Industrial Complex in Gyeongnam, the Myeongji-Noksan National Industrial Complex in Busan, and the Pohang National Industrial Complex is 0%, and the Ulsan National Industrial Complex is also less than 30%.

There are 65 areas at risk of landslides and debris flows in Gimhae City, and areas where liquefaction can occur in Gimhae City are densely populated areas (Earthquake Damage Assessment and Reduction Plan for Facilities, 2018). In addition, it was studied that Busan Myeongji-Noksan Industrial Complex, Busan New Port hinterland, and Gimhae City in Gyeongsangnam-do have a high possibility of liquefaction in an earthquake of magnitude 6 or higher (Hwang Jin-yeon, 2011).

Damage to approximately 1,500 water pipes was reported due to the 1994 Northridge earthquake, and leaks occurred in approximately 1,600 buried pipes due to the 1995 Kobe earthquake.

In an earthquake simulation test on the Sen Andreas fault in the United States, the possibility of damage to all water pipes was confirmed, so LADWP (Los Angeles Department of Water and Power) requested performance verification through full-scale structural tests to confirm the seismic performance of buried water pipes. started to do it.

Meanwhile, the economic damage from the Gyeongju earthquake (magnitude 5.4) that occurred in 2016 was approximately 10.6 billion won, and 11 cases of damage, including rupture of water pipes, were recorded even in the Gyeongnam region, which is relatively far from the epicenter.

The 2017 Pohang earthquake (magnitude 5.4) caused damage of KRW 55.1 billion and recovery costs of KRW 144.5 billion, and damage to plumbing facilities was reported, including 40 water pipe leaks, 6 water and sewage pipes damaged, and 6 oil pipelines blocked.

In particular, seismic liquefaction was discovered at the time of the earthquake, and frequent ground subsidence has been reported after earthquakes. Therefore, it is necessary to prepare for this in areas with high risk of liquefaction due to soft ground.

Damage to buried water pipes caused by earthquakes is caused by excessive displacement caused by seismic liquefaction, structural deformation, permanent deformation of the ground such as faults or debris flows, and ground subsidence.

Damage to buried pipes reported from earthquakes was mainly caused by displacement-dominated behavior such as deformation and damage of structures, liquefaction of the ground, and ground destruction, and damage was concentrated at the pipe joints. In the case of the 2011 Great East Japan Earthquake, pipes with small pipe diameters were damaged. A tendency to concentrate appeared.

According to damage cases and research results, damage to buried pipes mainly occurs at pipe joints due to inertial forces, liquefaction, and ground failure caused by earthquakes, so it is necessary to develop technology that can respond to seismic displacement.

In addition, looking at the status of damage to buried pipes due to ground subsidence, on March 31, 2012, a portion of the city gas pipe cracked due to ground subsidence in Seocho-gu, resulting in the interruption of gas supply to about 24 households in the Yangjae-dong area and water leakage due to a ruptured water pipe. occurred.

In addition, on August 18, 2014, a city gas pipe was damaged due to ground subsidence, causing a leak, and on July 25, 2017, a water leak occurred on the road due to a water pipe rupture due to land subsidence in Ulsan. In addition, there were no casualties due to ground subsidence in Guri City on August 26, 2020, but damage to nearby roads and water pipes occurred. On August 11, 2021, in Dong-gu, Daegu, streetlights were damaged and water pipes ruptured due to ground subsidence, causing damage to 290 households in the area. A water outage occurred. And on August 3, 2022, no casualties occurred due to ground subsidence at Naksan Beach in Yangyang-gun, but an accident occurred in which a nearby convenience store building collapsed and water pipes were damaged.

In particular, the areas where pipes are buried are diverse, such as coastal areas, roads, landfills, and extreme cold areas, so the condition of the ground where the pipes are constructed is not the same. Therefore, ground deformation occurs due to various factors.

Uniform ground deformation may not cause major problems due to the characteristics of the material, but the safety of the piping must be considered in conditions where relative displacement may occur.

In addition, increases in freezing, melting and settling due to temperature changes in extreme cold areas, and differential settlement due to soil unevenness can be major causes of damage to buried pipes.

In relation to this, Registered Patent Publication No. 10-1122612 describes a fixing structure capable of detecting subsidence of pipes that protect transmission and distribution lines.

In this technology, the arrow rotates according to the sinkage of the pipe, making it easy to determine the degree of sinkage, and when sinking occurs in soft ground, the elastic box body of the lower support is pushed outward to protect the transmission and distribution line, which is configured to fill the sunken space. It relates to a fixed structure capable of detecting sinkage of a pipe, in which flanges (12) are formed at both ends of a pair of semicircular bodies (11), and in a state where the semicircular bodies (11) surround the pipe (1), the upper flange (12) A coupler (10) that is fixed to the bottom of the rectangular band (44-2) of the sensing tube (40), and to which the fixing plate (24) of the lower support body (20) is fixed to the flange (12) of the lower part of the semicircular body (11). ; Holes 23 are formed on the upper sides of the square box-shaped box 21, and a fixing plate 24 is formed vertically on the upper surface of the box 21 and is fixed to the flange 12 of the coupler 10, A lower support body (20) on which a resistance plate (22) protrudes horizontally from the outer surface of the box body (21); A horizontal connecting rod 30 that is inserted into the hole 23 of the lower support 20 and connects and fixes the plurality of lower supports 20; A tube body 41 is formed with a circular cross section, and a hole 41-1 is formed on the bottom of the tube body 41, so that the lower part of the tooth bar 44 is outside the tube body 41 through the hole 41-1. It is exposed and fixed to the flange 12 of the coupler 10 so as to be able to move up and down, and the toothed bar 44 has teeth 44-1 formed on a part of one surface of the square bar 44-2, and the toothed bar 44 A circular gear (45) is rotatably fixed to the inside of the tube body (41) so as to engage with (44-1), and one bevel gear (46) is integrally formed to rotate in the same manner as the circular gear (45), and the other bevel gear is (46) is installed to rotate by changing the rotation of the circular gear (45) by 90 degrees, and the rotating rod (47) is fixed to the rotating axis of the other bevel gear (46) and installed vertically, and a transparent window is installed at the top of the pipe body (41). (42) is fixed, the number plate 43 is fixed horizontally on the inner upper part of the tube body 41, the upper end of the rotating rod 47 penetrates the number plate 43, and the arrow 48 is fixed, and the tube body 41 ) A fixing rod (47-1) is fixed horizontally on one side of the interior, and a fixing ring (47-2) is formed on one side of the fixing rod (47-1), so that the rotating rod (47) is inserted into the sensing tube (40) It is composed of ;.

Additionally, Registered Patent Publication No. 10-2249084 describes a ground subsidence risk analysis device and method.

The above technology relates to a ground cave-in risk analysis device and method, using an analysis device to determine the behavior of the geology and ground, and testing the direction of water leakage and stratum structure according to various situations that may occur due to water and sewer water leakage. By simulating and observing the ground subsidence phenomenon while changing conditions, risk indicators can be considered.

The ground cave-in risk analysis device according to the above technology includes an earth tank where soil is accommodated inside to form the ground, and a pipe through which water leakage occurs on the side is inserted through; a fluid supply unit connected to one side of the pipe to supply water; a fluid control unit that controls the flow of water; a subsidence measurement unit that measures the subsidence depth of the ground; and a risk calculation unit that calculates the risk by comparing the sinking depth with a preset sinking depth standard, wherein the fluid control unit can alternately control the flow of water to supply water to the pipe.

Additionally, Registered Patent Publication No. 10-0847459 describes an expansion joint device for a buried type insulated double pipe.

The above technology is an expansion joint device of a buried type insulated double pipe that is divided into a vacuum area and a leakage fluid discharge area, allowing discharge of leakage fluid without releasing the vacuum when leakage fluid occurs, and injection of packing material. The inner pipe 110 is attached. A fixing tube 120 is formed, and an outer tube 100 is formed on the outside of the fixing tube 120, and a packing part 140 is formed at the joint portion of the inner tube 110, and the inner tube 110 and the outer tube (100) are formed on the outside of the fixing tube 120. An elastic member 150 is formed between the elastic members 100 to form a vacuum area (a) on the outside of the elastic member 150 and a leakage fluid discharge area (b) on the inside.

Additionally, Registered Patent Publication No. 10-0495537 describes a remote monitoring system for piping conditions.

The above technology relates to a remote monitoring system for piping conditions, and more specifically, remotely monitors the status of city gas pipes connected to gas consumers from a pressure regulator that adjusts the city gas supply pressure in the gas pipe network, and monitors pipe damage, gas leaks, etc. This is about a remote monitoring system for piping conditions that can prevent major accidents from occurring.

This is a central control device (110) located in the situation room (80) that detects the gas piping condition using data detected by a terminal measurement device and outputs emergency dispatch, valve blocking, and/or pressure control commands for the static pressure when an abnormality occurs. ) and a signal generation and delivery device 130 that receives control commands from the central control device 110 and transmits detection data, and transmits a signal to the signal generation and delivery device 130 through the buried pipe 10. A connection central device 140 that transmits measured data to the connection central device 140 through a buried pipe 10, a sensing terminal measurement device 150 that transmits measured data to the connection central device 140, and control from the central control device 110. It includes a control device 160 for adjusting the gas pressure according to a signal, and a blocking device 170 for blocking the valve 30 according to a control signal from the central control device 110.

Registered Patent Publication No. 10-1122612 (announced on March 6, 2012) Registered Patent Publication No. 10-2249084 (announced on May 7, 2021) Registered Patent Publication No. 10-0847459 (announced on July 21, 2008) Registered Patent Publication No. 10-0495537 (announced on June 16, 2005)

The purpose of the present invention is to provide an expansion pipe joint structure with a positional displacement big data collection function to improve the safety of water pipes crossing land subsidence and fault areas. It assists water pipes in the event of ground subsidence and monitors data received from sensors when ground subsidence occurs. The purpose is to provide an expansion pipe joint structure that can collect positional displacement information of water pipes to ensure safety by confirming and monitoring ground subsidence information in real time.

In order to achieve the above-mentioned purpose, the expansion pipe joint structure of the present invention capable of collecting positional displacement information of water pipes forms a bellows 11 between two pipes 10, and the bellows 11 In the direction of both ends, a connection flange 12 is formed on the outer surface of the pipe 10,

It is constructed by connecting two connecting flanges (12) using long bolts,

The pipe 10 is characterized in that a sensor is configured.

At this time, the sensor is characterized in that it measures the displacement generated in the pipe 10 due to ground subsidence.

In addition, the sensor is connected to the monitor 30 through an electric line 20 and outputs the sensor's measured values to the monitor 30.

According to the expansion pipe joint structure capable of collecting positional displacement information of water pipes according to the present invention, safety is ensured by assisting water pipes when ground subsidence occurs and monitoring data received from sensors when ground subsidence occurs, confirming and monitoring ground subsidence information in real time. It has the advantage of being able to do so.

In addition, in the existing domestic piping and jointing device market, which is saturated with respect to expansion pipe joint structures, it is possible to secure unrivaled technology that differentiates it from competitors, and secure competitiveness through market preoccupation through commercialization of new technologies and development of new products. .

In addition, as data monitoring becomes possible, efficient response to water supply maintenance and earthquake disaster response is possible.

In addition, in the case of seismic disasters, even when the scale of the earthquake that occurs is not large or the seismic intensity is not large because it is far from the epicenter, it has the advantage of being able to compensate for the difficulty in confirming it through visual inspection due to the characteristics of Maeseonggwan.

Figures 1 and 2 show an expansion pipe joint structure capable of collecting positional displacement information of water pipes according to the present invention.
Figure 3 shows an expansion pipe joint structure capable of collecting positional displacement information of water pipes according to another embodiment of the present invention.

Terms or words used in this specification and claims should not be construed as limited to their ordinary or dictionary meanings, and the inventor may appropriately define the concept of terms in order to explain his or her invention in the best way. It must be interpreted as meaning and concept consistent with the technical idea of the present invention based on principles.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent the entire technical idea of the present invention, and various equivalents can be substituted for them at the time of filing the present application. It should be understood that there may be variations.

Hereinafter, before explaining with reference to the drawings, matters that are not necessary to reveal the gist of the present invention, that is, known configurations that can be easily added by a person skilled in the art, are not shown or described in detail. Let's keep it clear.

The present invention relates to an expansion pipe joint structure capable of collecting positional displacement information of water pipes.

Specifically, it is an expansion pipe joint structure with a positional displacement big data collection function to improve the safety of water pipes crossing land subsidence and fault areas. It assists water pipes in the event of ground subsidence and monitors data received from sensors in case of ground subsidence, This relates to an expansion pipe joint structure capable of collecting positional displacement information of water pipes, which ensures safety by confirming and monitoring settlement information in real time.

The expansion pipe joint structure capable of collecting positional displacement information of water pipes according to the present invention will be described with reference to the attached drawings.

Figures 1 and 2 show an expansion pipe joint structure capable of collecting positional displacement information of a water pipe according to the present invention, and Figure 3 shows an expansion pipe joint capable of collecting positional displacement information of a water pipe according to another embodiment of the present invention. It shows the structure.

Through the attached drawings, the expansion pipe joint structure capable of collecting positional displacement information of water pipes according to the present invention is explained.

The expansion pipe joint structure capable of collecting positional displacement information of a water pipe according to the present invention forms a bellows 11 between two pipes 10, and extends the outer surface of the pipe 10 in the direction of both ends of the bellows 11. A connection flange (12) is formed.

The two connecting flanges 12 formed in this way are connected by using long bolts and fastening nuts.

That is, elasticity is secured between the two pipes 10 by the bellows 11, and horizontal fixation between the two pipes is possible by the connecting flange 12 and the long bolt.

Since these pipes (10) are buried in the ground, the durability of the pipe may be affected if problems such as ground subsidence occur. However, due to the nature of the pipes buried in the ground, unless the ground is dug up, the pipe (10) due to ground subsidence ) cannot be confirmed.

Therefore, the present invention further includes a monitor 30 that installs a sensor in the pipe and outputs the sensor value of the sensor on the screen. These sensors and monitors 30 are connected by wires with electric cables 20.

The sensor measures the displacement and angle values generated in the pipe due to ground subsidence. In other words, the sensor measures the displacement of the angle or position of the pipe from the pre-installed position due to ground subsidence, and transmits the measured value to the monitor 30 to output it.

Since displacement usually occurs in each pipe, it is desirable to provide one sensor per pipe.

On the other hand, even if ground subsidence occurs, the pipe 10 can be temporarily protected, but since ground subsidence changes the shape of the ground, a protective cover (40, 41 ~ 45) is provided to eventually respond to the elasticity of the pipe 10. (common name for) can be further included.

The protective cover 40 is configured in the shape of a cover to protect the pipe 10 above the pipe 10 including the bellows 11, as shown in FIG. 3 of the attached drawing.

This protective cover 40 includes a first plate 41 positioned horizontally to the pipe 10; a second plate 42 bent vertically downward at both ends of the first plate 41 and extending integrally; a third plate (43) bent in a direction opposite to the second plate (42) and facing in a direction parallel to the first plate (41); It includes a fourth plate (44) bent and extended downward from an end of the third plate (43) in a vertical direction.

At this time, on one side of the fourth plate 44, a groove portion 44a is formed on each of the outer and inner walls.

In addition, a pressing body 45 is formed on the lower side of the fourth plate 44, and the pressing body 45 has an 'ㄱ' shape in the direction corresponding to the groove portion 44a with respect to a predetermined box shape. The intermittent member 45a having is formed integrally with the pressing member 45. The bent end of the interrupter 45a is configured to be interpolated and fixed into the groove portion 44a.

In addition, the first plate 41 is divided into three components, and the middle plate and the remaining two side plates are connected using hinges.

This may be a joint using a simple hinge, or an intermediate plate It may be constructed in the shape of ', and each of the two side plates may be interpolated into the groove of the middle plate and connected with a hinge. Additionally, one side of the first plate 41 may include a groove for exposing the electric wire 20.

At this time, the length of the middle plate can be configured to correspond to the length of the bellows 11. Accordingly, when ground subsidence occurs and a load is generated from above the pipe, the protective cover 40 primarily protects the pipe. Since ground subsidence does not occur only from above but occurs throughout the ground, organic response is possible by the first plate 41 even if displacement of the pipe occurs, and even if the pressing force from above becomes strong, the pressing body ( Since 45) can move at a certain distance from the fourth plate 44, it has the advantage of partially protecting the pipe 10 while absorbing shock.

According to the expansion pipe joint structure capable of collecting positional displacement information of water pipes according to the present invention configured as described above, it assists water pipes when ground subsidence occurs and monitors data received from sensors at the time of ground subsidence to confirm ground subsidence information in real time. It has the advantage of ensuring safety through monitoring.

In addition, in the existing domestic piping and jointing device market, which is saturated with respect to expansion pipe joint structures, it is possible to secure unrivaled technology that differentiates it from competitors, and secure competitiveness through market preoccupation through commercialization of new technologies and development of new products. .

In addition, as data monitoring becomes possible, efficient response to water supply maintenance and earthquake disaster response is possible.

In addition, in the case of seismic disasters, even when the scale of the earthquake that occurs is not large or the seismic intensity is not large because it is far from the epicenter, it has the advantage of being able to compensate for the difficulty in confirming it through visual inspection due to the characteristics of Maeseonggwan.

The above description using the drawings describes only the main points of the present invention, and as various designs are possible within the technical scope, it is obvious that the present invention is not limited to the configuration of the drawings.

10: pipe
11: bellows
12: Connection flange
20: electric wire
30: Monitoring device

Claims (3)

A bellows 11 is formed between two pipes 10, and a connection flange 12 is formed on the outer surface of the pipe 10 in the direction of both ends of the bellows 11,
It is constructed by connecting two connecting flanges (12) using long bolts,
In the expansion pipe joint structure capable of collecting positional displacement information of the water pipe, wherein the pipe 10 is equipped with a sensor,
The sensor is,
Measure the displacement generated in the pipe 10 due to ground subsidence,
The sensor is connected to the monitor 30 through an electric line 20,
The sensor's measured values are output to the monitor (30),
It further includes a protective cover 40 to cope with the elasticity of the pipe 10,
The protective cover 40 is,
A cover is formed on the upper side of the pipe 10 having the bellows 11 to protect the pipe 10,
a first plate 41 positioned horizontally with the pipe 10;
a second plate 42 that is bent vertically downward at both ends of the first plate 41 and extends integrally;
a third plate (43) bent in a direction opposite to the second plate (42) and facing in a direction parallel to the first plate (41);
It includes a fourth plate (44) bent and extended in a vertical direction downward from the end of the third plate (43),
On one side of the fourth plate 44, a groove portion 44a is formed on each of the outer and inner walls,
A pressing body 45 is formed on the lower side of the fourth plate 44, and the pressing body 45 has an 'ㄱ' shape in a direction corresponding to the groove portion 44a with respect to a predetermined box shape. The interrupter (45a) is formed integrally with the pressing member (45), and the bent end of the interrupter (45a) is configured to be interpolated and fixed in the groove portion (44a),
The first plate 41 is divided into three components, and the middle plate and the remaining two side plates are coupled using a hinge, and the middle plate is It is composed of a shape of ', and each of the two side plates is interpolated into the groove of the middle plate and joined with a hinge.
An expansion pipe joint structure capable of collecting positional displacement information of a water pipe, characterized in that one side of the first plate (41) includes a groove for exposing the electric wire (20). delete delete