Protective isolation belt for underground pipeline construction

By integrating reflective photoelectric sensors and buzzers into the protective isolation zone for intrusion early warning, and by using threaded columns and twisted grooves to ensure the stability and disassembly resistance of the isolation zone, the problem of traditional isolation zones being unable to provide active early warning and being easily disassembled is solved, thus achieving dynamic safety assurance for underground pipeline construction.

CN121896923APending Publication Date: 2026-04-21HUAIAN DUORONG CONSTRUCTION ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAIAN DUORONG CONSTRUCTION ENGINEERING CO LTD
Filing Date
2026-01-16
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Traditional protective barriers cannot provide proactive warnings of intrusion, and their simple structure makes them easy to dismantle, posing safety hazards and failing to meet the dynamic safety requirements of underground pipeline construction.

Method used

It combines a reflective photoelectric sensor and a buzzer to provide proactive early warning of intrusion. The threaded post and twisted groove design ensures the stability and anti-disassembly of the isolation zone. It is equipped with a timing module for equipment self-testing to enhance system reliability.

Benefits of technology

It enables timely early warning of intrusion attempts, prevents personnel from accidentally entering construction areas, ensures the long-term reliability and security of the protection system, and avoids protection failure caused by equipment malfunction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a protective isolation belt for underground pipeline construction, and relates to the technical field of construction protection, the protective isolation belt comprises an isolation column, an isolation belt is fixedly installed above the right end face of the isolation column, and a limiting insertion plate is fixedly installed on the right end face of the isolation belt; a reflective photoelectric sensor carried by the isolation column continuously monitors a protection area in a normal state, when pedestrians, vehicles or other objects bypass an isolation belt to enter a construction area, optical signals of the sensor are shielded, a trigger signal is immediately sent to a microcontroller, and the microcontroller controls the isolation column to pass through the isolation belt, so that the safety of the pedestrians, the vehicles or the other objects is ensured. The microcontroller rapidly starts the buzzer to give out a high-decibel alarm, timely reminds a constructor of handling potential safety hazards, prevents the constructor from entering a construction area by mistake to cause accidents such as falling and electric shock, and solves the problem that a traditional protective isolation belt only has a basic function of physical isolation and cannot perform active early warning on intrusion behaviors.
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Description

Technical Field

[0001] This invention relates to the field of construction protection technology, and in particular to a protective isolation strip for underground pipeline construction. Background Technology

[0002] Underground pipeline construction (such as water supply and drainage pipelines, gas pipelines, and communication cable laying) is mostly carried out in open outdoor environments, involving complex scenarios such as municipal roads, residential green spaces, and suburban wilderness. Protective isolation facilities must be set up in the construction area to ensure construction safety (preventing personnel from accidentally entering pits and mitigating the risks of machinery operation) and maintain site order (separating the construction area from the passageway). However, the protective isolation products widely used in the industry currently have significant shortcomings in adapting to the specific characteristics, safety, and practicality of underground pipeline construction scenarios. The main problems are as follows: Traditional protective barriers only have the basic function of physical isolation. They cannot provide proactive warnings of intrusion or monitor their own working status in real time, making it difficult to meet the dynamic safety requirements of underground pipeline construction. If pedestrians (especially children and the elderly) bypass the barriers and crawl into the construction area from below during construction, on-site construction personnel may not be able to detect them in time, which may easily lead to safety accidents such as falling into pits or being injured by machinery. Underground pipeline construction typically takes a long time (ranging from several days to several months), requiring protective barriers to be exposed to the outdoor environment for extended periods. Furthermore, some construction areas are close to residential and commercial areas, creating opportunities for unauthorized personnel to accidentally touch or dismantle these barriers. Most barriers use clips or Velcro for fastening, resulting in simple structures and low locking strength. Children pulling on them or pedestrians accidentally bumping into them can easily cause them to detach, creating security loopholes. Some barriers with locking mechanisms can be disassembled using common tools (such as ordinary screwdrivers), lacking dedicated control designs. This poses a risk of malicious damage or unauthorized removal by unauthorized personnel, further exacerbating safety hazards in the construction area. Summary of the Invention

[0003] This invention relates to a protective isolation strip for underground pipeline construction, which solves the problem that traditional protective isolation strips only have the basic function of physical isolation and cannot provide active early warning of intrusion.

[0004] This invention provides a protective isolation strip for underground pipeline construction, specifically comprising: an isolation column, wherein an isolation strip is fixedly installed on the upper right end face of the isolation column, and a limiting insert plate is fixedly installed on the right end face of the isolation strip; a limiting slot is formed on the left side of the top face of the isolation column, and a mating groove communicating with the limiting slot is formed on both the left end face and the top face of the isolation column; a threaded groove is formed at the center of the top face of the isolation column, and the threaded groove communicates with the limiting slot; when two adjacent isolation columns are spliced ​​together, the isolation strip of one isolation column is inserted into the mating groove of the other isolation column, and the... The limiting plate fixedly installed on the right end face of the isolation strip is inserted into the limiting slot. When the bottom end face of the limiting plate is in contact with the bottom end of the limiting slot, the top end face of the limiting plate is at the same level as the bottom end of the threaded groove. A concealed groove is opened on the bottom end of the threaded groove, and an on / off switch is installed inside the concealed groove. A threaded post matching its structural dimensions is threaded inside the threaded groove. When the bottom end face of the threaded post is in contact with the bottom end of the threaded groove, the top end face of the threaded post is at the same level as the top end face of the isolation post, and the threaded post part of the structure is blocked in the position area of ​​the limiting slot.

[0005] Furthermore, a storage battery is installed inside the isolation column; a charging port and a power display electrically connected to the storage battery are installed on the lower right end face of the isolation column.

[0006] Furthermore, a microcontroller is also installed inside the isolation column, which is electrically connected to the on / off switch; a reflective photoelectric sensor electrically connected to the microcontroller is embedded in the middle area of ​​the right end face of the isolation column; a buzzer electrically connected to the microcontroller is also installed on the right end face of the isolation column; when the reflective photoelectric sensor detects a target object, its feedback signal is given to the microcontroller, and the microcontroller controls the buzzer to start.

[0007] Furthermore, a drive cavity is provided inside the isolation column, which is located below the reflective photoelectric sensor; a motor is fixedly installed on the right side of the inner end of the drive cavity, and the motor is electrically connected to the microcontroller; the shaft end of the motor passes through the right end face of the isolation column and an interference plate is fixedly installed thereon.

[0008] Furthermore, when the motor is not started, the spatial positions of the interference plate and the reflective photoelectric sensor are completely offset, and there is no obstruction or interference between them. When the motor is started, its shaft drives the interference plate to make a circular motion. During the process of the interference plate completing one revolution, there will be at least one motion phase that makes the interference plate exactly on the optical signal transmission path of the reflective photoelectric sensor, thereby blocking the optical signal of the reflective photoelectric sensor.

[0009] Furthermore, a twisted groove is formed at the axial center of the top surface of the threaded column. The twisted groove has an elliptical groove structure. A mating column is inserted into the twisted groove. The mating column has an elliptical column structure, and its diameter is consistent with the diameter of the twisted groove. A ring is fitted on the mating column. Under normal conditions, the mating column is carried by the construction personnel.

[0010] Furthermore, a rotating shaft is fixedly installed at the center of the bottom end face of the isolation column; a circular base is provided below the isolation column, and the circular base and the rotating shaft are rotatably connected by a bearing; an annular torsion bar is fixedly installed on the outer circumference of the circular base through a connecting plate; a soil-breaking component with a conical structure is fixedly installed at the axial center of the bottom end face of the circular base, and a spiral blade is fixedly installed on the outer circumference of the soil-breaking component.

[0011] Furthermore, the isolation column is also equipped with a timing module electrically connected to the microcontroller. The timing module has a timing value of one hour, but is not limited to this time value and can be set according to needs. When the timing value of the timing module is reached, the timing module sends a feedback signal to the microcontroller, and the microcontroller controls the motor shaft to rotate one revolution.

[0012] This invention provides a protective isolation strip for underground pipeline construction, which has the following beneficial effects: The reflective photoelectric sensor mounted on the isolation column of this invention continuously monitors the protected area under normal conditions. When pedestrians, vehicles, or other objects bypass the isolation zone and enter the construction area, the sensor's light signal is blocked, immediately sending a trigger signal to the microcontroller. The microcontroller quickly activates a buzzer to emit a high-decibel alarm, promptly reminding construction personnel to address potential safety hazards and preventing accidents such as falls and electric shocks caused by personnel accidentally entering the construction area. The timing module built into the isolation column can be customized to set a self-check cycle. Upon reaching the timing node, it automatically sends a signal to the microcontroller, controlling the motor to drive the interference plate to rotate, simulating a scenario where an object blocks the sensor. If the sensor and buzzer are functioning normally, the buzzer will emit a short beep, indicating that the equipment is in normal working condition. If no beep occurs, it reminds construction personnel to promptly inspect the sensor or buzzer to avoid protection failure due to equipment malfunction and ensure the long-term reliability of the protection system.

[0013] This invention targets outdoor non-hardened surfaces such as soil and gravel commonly encountered during underground pipeline construction. It employs a combination of a conical soil-breaking component and a spiral blade for fixing. Construction workers do not need large installation tools; they can drive the soil-breaking component to cut into the ground simply by manually rotating a ring-shaped torsion bar. During rotation, the spiral blades not only assist in soil penetration but also form a tight grip with the soil, significantly enhancing the ground grip of the isolation column. At the same time, the isolation column is rotatably connected to the circular base via bearings, so it will not affect the subsequent alignment and installation of the isolation strip. Compared with traditional gravity-type or simple ground-insertion isolation columns, this structure can effectively resist external interference such as wind and minor collisions, preventing the isolation column from tipping over and ensuring that the protected area remains closed during construction.

[0014] This invention achieves initial positioning of adjacent isolation columns by inserting an isolation strip into a slotted joint and embedding a limiting plate into a limiting slot. Then, a threaded column is screwed in along the threaded groove, and the structure of the threaded column partially seals the top opening of the limiting slot, physically preventing the limiting plate from detaching upwards and completely fixing the isolation strip. This prevents unauthorized personnel from pulling or disassembling the isolation strip, which could damage the protected area. The twisted groove at the top of the threaded column is designed as an elliptical structure, only compatible with elliptical mating columns carried by construction personnel. Ordinary screwdrivers, Allen wrenches, and other tools cannot be inserted into the twisted groove to rotate the threaded column. This binding design prevents unauthorized personnel from accidentally opening the threaded groove, preventing malicious disassembly of the isolation strip and protecting the on / off switch inside the concealed groove from being touched, ensuring that the intelligent protection system is only controllable by construction personnel. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0016] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0017] In the attached diagram: Figure 1 A schematic diagram of the main structure of the present invention is shown; Figure 2 A schematic diagram of the right-side axial structure of the present invention is shown; Figure 3 A schematic diagram of the left-end axial structure of the present invention is shown; Figure 4 A schematic diagram of the top isometric structure of the present invention in its split state is shown; Figure 5 The present invention is shown Figure 4 A magnified view of the structure at point A in the middle; Figure 6 A schematic diagram of the bottom isometric structure of the present invention in its split state is shown. Figure 7This diagram shows a partially enlarged structural schematic of the threaded groove portion of the present invention; Figure 8 This diagram shows a partially enlarged cross-sectional view of the drive cavity portion of the present invention. Figure 9 A system composition block diagram of the present invention is shown; List of reference numerals 1. Isolation column; 101. Isolation strip; 102. Limiting plate; 103. Reflective photoelectric sensor; 104. Interference board; 105. Buzzer; 106. Charging port; 107. Power indicator; 108. Fitting slot; 109. Limiting slot; 1010. Threaded groove; 1011. Concealed groove; 1012. Rotating shaft; 1013. On / off switch; 1014. Drive cavity; 1015. Motor; 1016. Timing module; 1017. Battery; 1018. Microcontroller; 2. Soil-breaking component; 201. Spiral blade; 202. Annular torsion bar; 203. Circular base; 204. Bearing; 3. Fitting column; 301. Ring; 4. Threaded column; 401. Torsion groove. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example: Please refer to Figures 1 to 9 : This invention proposes a protective isolation strip for underground pipeline construction, comprising: an isolation column 1; an isolation strip 101 fixedly installed on the upper right end face of the isolation column 1; a limiting insert plate 102 fixedly installed on the right end face of the isolation strip 101; a limiting slot 109 is formed on the left side of the top surface of the isolation column 1; a mating groove 108 communicating with the limiting slot 109 is formed on both the left end face and the top surface of the isolation column 1; a threaded groove 1010 is formed at the center of the top surface of the isolation column 1, and the threaded groove 1010 communicates with the limiting slot 109; when two adjacent isolation columns 1 are spliced ​​together, one isolation column... The isolation strip 101 of the isolation column 1 is inserted into the matching slot 108 of another isolation column 1, and the limiting plate 102 fixedly installed on the right end face of the isolation strip 101 is inserted into the limiting slot 109. When the bottom end face of the limiting plate 102 is in contact with the bottom end face of the inner end of the limiting slot 109, the top end face of the limiting plate 102 is at the same level as the bottom end face of the inner end of the threaded groove 1010. A concealed groove 1011 is opened on the bottom end face of the inner end of the threaded groove 1010, and an on / off switch 1013 is installed inside the concealed groove 1011. The threaded groove 1010 is threaded with a component that matches its structural dimensions. The threaded post 4, when its bottom end face contacts the bottom end face of the inner end of the threaded groove 1010, has its top end face on the same horizontal plane as the top end face of the isolation post 1, while part of the threaded post 4 is sealed in the position area of ​​the limiting slot 109; the isolation post 1 houses a battery 1017; a charging port 106 and a power indicator 107, electrically connected to the battery 1017, are installed on the lower right end face of the isolation post 1. The battery 1017 inside the isolation post 1 supplies power to all electrical components, and the charging port 106 on the right end face can be charged by an external power source to meet the needs of long-term construction. Requirements: The power display 107 displays the remaining power of the battery 1017 in real time; the isolation column 1 is also equipped with a microcontroller 1018, which is electrically connected to the on / off switch 1013; a reflective photoelectric sensor 103, which is electrically connected to the microcontroller 1018, is embedded in the middle area of ​​the right end face of the isolation column 1; a buzzer 105, which is electrically connected to the microcontroller 1018, is also installed on the right end face of the isolation column 1; when the reflective photoelectric sensor 103 detects a target object, its feedback signal is given to the microcontroller 1018, and the microcontroller 1018 controls the buzzer 105 to start.

[0020] The isolation column 1 has a drive cavity 1014 located below the reflective photoelectric sensor 103. A motor 1015 is fixedly installed on the right side of the inner end of the drive cavity 1014 and is electrically connected to the microcontroller 1018. The shaft of the motor 1015 passes through the right end of the isolation column 1 and has an interference plate 104 fixedly installed thereon. When the motor 1015 is not running, the spatial positions of the interference plate 104 and the reflective photoelectric sensor 103 are completely offset, and there is no obstruction or interference between them. When the motor 1015 starts, its shaft drives the interference plate 104 to perform a circular motion. During the process of the interference plate 104 completing one rotation, there will be at least one motion phase that makes the interference plate 104 exactly on the optical signal transmission path of the reflective photoelectric sensor 103, thereby blocking the optical signal of the reflective photoelectric sensor 103.

[0021] The threaded column 4 has a twisted groove 401 at the center of its top surface, which is elliptical in shape. A mating column 3 is inserted into the twisted groove 401. The mating column 3 is elliptical in shape, and its diameter is the same as that of the twisted groove 401. A ring 301 is fitted onto the mating column 3. In normal operation, the mating column 3 is carried by the construction personnel. A rotating shaft 1012 is fixedly installed at the center of the bottom surface of the isolation column 1. A circular base 203 is provided below the isolation column 1. The circular base 203 and the rotating shaft 1012 are rotatably connected via a bearing 204. The outer circumference of the circular base 203 is open. A ring torsion bar 202 is fixedly installed on the connecting plate; a cone-shaped soil-breaking component 2 is fixedly installed at the axial part of the bottom end face of the circular base 203, and a spiral blade 201 is fixedly installed on the outer circumference of the soil-breaking component 2; a timing module 1016 electrically connected to the microcontroller 1018 is also provided inside the isolation column 1. The timing value of the timing module 1016 is one hour, but it is not limited to this time value and can be set according to needs; when the timing value of the timing module 1016 is reached, the timing module 1016 feeds back a signal to the microcontroller 1018, and the microcontroller 1018 controls the shaft end of the motor 1015 to rotate one revolution.

[0022] The working principle of this embodiment: For complex outdoor ground conditions (such as soil and gravel) for underground pipeline construction, a spiral soil-breaking fixing structure is adopted. The construction personnel hold the ring torsion bar 202 and rotate the circular base 203. Because the isolation column 1 is rotatably connected to the circular base 203 through the bearing 204, the isolation column 1 remains stable when rotating the circular base 203. The conical soil-breaking component 2 below the circular base 203 cuts into the ground under the action of rotational force. The spiral blades 201 on the outer periphery further assist in entering the soil and enhance the grip until the circular base 203 is in contact with the ground, thus completing the stable installation of the isolation column 1 and preventing the isolation column 1 from tipping over due to external forces (such as wind or collision) during construction. During construction, the isolation strip 101 on the right side of the previous isolation post 1 is inserted into the matching slot 108 of the next isolation post 1, and the limiting plate 102 at the end of the isolation strip 101 is simultaneously embedded into the limiting slot 109 until the bottom surface of the limiting plate 102 is in contact with the bottom surface of the limiting slot 109, thus completing the initial positioning. Using a special mating post 3 (carried by the construction personnel), insert it into the twist groove 401 at the top of the threaded post 4, rotate the threaded post 4 to screw it down along the thread groove 1010. When the bottom surface of the threaded post 4 contacts the bottom surface of the thread groove 1010, part of its structure just blocks the top opening of the limit slot 109, restricting the limit plate 102 from coming out upwards; at the same time, the top of the threaded post 4 is flush with the top surface of the isolation post 1, avoiding external impact that could cause the locking to fail; furthermore, the twist groove 401 with its elliptical groove structure enables the binding operation of the threaded post 4 for disassembly and assembly, so that without the mating post 3, existing tools such as screwdrivers and Allen wrenches cannot rotate the threaded post 4 along the thread groove 1010 by inserting it into the twist groove 401, thereby preventing non-construction personnel from contacting the on / off switch 1013 or removing the limit plate 102 from the limit slot 109; Before installing the threaded post 4, press the on / off switch 1013 inside the concealed slot 1011 to send a signal to the microcontroller 1018, activating the entire intelligent sensing system and putting it into protective standby mode. The reflective photoelectric sensor 103 is embedded in the right end face of the isolation post 1. Under normal conditions, it continuously emits light signals and receives reflected signals (the signal is stable when there is no obstruction). When a pedestrian or other object enters the protected area below the isolation strip 101 and blocks the light signal of the reflective photoelectric sensor 103, the signal at the receiving end of the reflective photoelectric sensor 103 is interrupted, and a trigger signal is immediately sent to the microcontroller 1018. After receiving the signal, the microcontroller 1018 immediately controls the buzzer 105 to start and emit a high-decibel alarm sound to remind the construction personnel to deal with it in time. The timing module 1016 of this invention sends a self-test signal to the microcontroller 1018 once every hour (the time can be customized) to simulate occlusion testing. When the microcontroller 1018 receives the signal, it controls the motor 1015 to start, driving the interference board 104 to perform circular motion. When the interference board 104 rotates to the light signal transmission path of the reflective photoelectric sensor 103, it simulates an occlusion event. If the reflective photoelectric sensor 103 is normal, it will send a feedback signal to the microcontroller 1018. The microcontroller 1018 controls the buzzer 105 to emit a short prompt sound (distinguished from intrusion alarms), indicating that the equipment is normal. If the reflective photoelectric sensor 103 does not send a feedback signal (e.g., due to a fault) or the buzzer 105 does not sound an alarm, it reminds the construction personnel to check and maintain the reflective photoelectric sensor 103 and the buzzer 105 to ensure the normal operation of the sensing and feedback functions.

Claims

1. A protective isolation strip for underground pipeline construction, characterized in that, include: An isolation column (1) is provided, with an isolation strip (101) fixedly installed on the upper right end face of the isolation column (1), and a limiting insert plate (102) fixedly installed on the right end face of the isolation strip (101); a limiting slot (109) is provided on the left side of the top surface of the isolation column (1), and a matching slot (108) connected to the limiting slot (109) is provided on both the left end face and the top surface of the isolation column (1); a threaded groove (1010) is provided at the center of the top surface of the isolation column (1), and the threaded groove (1010) is connected to the limiting slot (109); when two adjacent isolation columns (1) are spliced ​​together, the isolation strip (101) of one isolation column (1) is inserted into the matching slot (108) of the other isolation column (1), and the limiting insert plate (102) fixedly installed on the right end face of the isolation strip (101) is provided. The insert plate (102) is inserted into the limiting slot (109) and when the bottom surface of the limiting insert plate (102) is in contact with the bottom surface of the inner end of the limiting slot (109), the top surface of the limiting insert plate (102) is at the same level as the bottom surface of the inner end of the threaded groove (1010); a concealed groove (1011) is provided on the bottom surface of the inner end of the threaded groove (1010), and an on / off switch (1013) is installed inside the concealed groove (1011); a threaded post (4) matching its structural size is installed inside the threaded groove (1010). When the bottom surface of the threaded post (4) is in contact with the bottom surface of the inner end of the threaded groove (1010), the top surface of the threaded post (4) is at the same level as the top surface of the isolation post (1), and part of the structure of the threaded post (4) is blocked in the position area of ​​the limiting slot (109).

2. The protective isolation strip for underground pipeline construction according to claim 1, characterized in that, The isolation column (1) is equipped with a storage battery (1017); a charging port (106) and a power display (107) electrically connected to the storage battery (1017) are installed on the lower right side of the isolation column (1).

3. The protective isolation strip for underground pipeline construction according to claim 2, characterized in that, The isolation column (1) is also equipped with a microcontroller (1018), which is electrically connected to the on / off switch (1013); a reflective photoelectric sensor (103) electrically connected to the microcontroller (1018) is embedded in the middle area of ​​the right end face of the isolation column (1); a buzzer (105) electrically connected to the microcontroller (1018) is also installed on the right end face of the isolation column (1); when the reflective photoelectric sensor (103) detects the target object, its feedback signal is given to the microcontroller (1018), and the microcontroller (1018) controls the buzzer (105) to start.

4. A protective isolation strip for underground pipeline construction according to claim 3, characterized in that, The isolation column (1) has a drive cavity (1014) inside, which is located below the reflective photoelectric sensor (103). A motor (1015) is fixedly installed on the right side of the inner end of the drive cavity (1014), and the motor (1015) is electrically connected to the microcontroller (1018). The shaft end of the motor (1015) passes through the right end face of the isolation column (1) and an interference plate (104) is fixedly installed thereon.

5. A protective isolation strip for underground pipeline construction according to claim 4, characterized in that, When the motor (1015) is not started, the spatial positions of the interference plate (104) and the reflective photoelectric sensor (103) are completely offset, and there is no obstruction or interference between them. When the motor (1015) is started, its shaft drives the interference plate (104) to make a circular motion. During the process of the interference plate (104) completing one revolution, there will be at least one motion phase that makes the interference plate (104) just on the optical signal transmission path of the reflective photoelectric sensor (103), thereby blocking the optical signal of the reflective photoelectric sensor (103).

6. A protective isolation strip for underground pipeline construction according to claim 5, characterized in that, A twisted groove (401) is provided at the axial part of the top surface of the threaded column (4). The twisted groove (401) has an elliptical groove structure. A matching column (3) is inserted into the twisted groove (401). The matching column (3) has an elliptical column structure. The diameter of the matching column (3) is the same as the diameter of the twisted groove (401). A ring (301) is fitted on the matching column (3). Under normal conditions, the matching column (3) is carried by the construction personnel.

7. A protective isolation strip for underground pipeline construction according to claim 6, characterized in that, A rotating shaft (1012) is fixedly installed at the center of the bottom end face of the isolation column (1); a circular base (203) is provided below the isolation column (1), and the circular base (203) and the rotating shaft (1012) are rotatably connected by a bearing (204); an annular torsion bar (202) is fixedly installed on the outer circumference of the circular base (203) through a connecting plate; a soil breaking component (2) with a conical structure is fixedly installed at the axial center of the bottom end face of the circular base (203), and a spiral blade (201) is fixedly installed on the outer circumference of the soil breaking component (2).

8. A protective isolation strip for underground pipeline construction according to claim 7, characterized in that, The isolation column (1) is also equipped with a timing module (1016) electrically connected to the microcontroller (1018). The timing value of the timing module (1016) is one hour, but it is not limited to this time value and can be set according to the needs. When the timing value of the timing module (1016) is reached, the timing module (1016) sends a feedback signal to the microcontroller (1018), and the microcontroller (1018) controls the shaft end of the motor (1015) to rotate one revolution.