A non-excavation laying device for underground pipelines

Abstract

The utility model relates to underground cable laying technical field discloses a kind of underground transmission line non-excavation type laying device, including base, the top of base is provided with transmission line mechanism, the left side of transmission line mechanism is provided with shell, the inside left end of shell is provided with tunneling mechanism, the tunneling mechanism is used to device in tunneling and provides navigation positioning, the right side of tunneling mechanism is provided with correction mechanism, the correction mechanism is used to use geomagnetic correction error caused by navigation, the right side of correction mechanism is provided with control mechanism, the right side of shell is provided with pulling mechanism, the tunneling mechanism includes drill bit.In the utility model, inertia sensor acquisition device motion data realizes inertial navigation, laser reference station cooperates and calibrates tunneling direction, in laying process, make cable in ground effectively obtain accurate laying position, improve work efficiency, effectively make adjustment in time according to actual position.

Description

Technical Field

[0001] This utility model relates to the field of underground cable laying technology, and in particular to a trenchless underground transmission line laying device. Background Technology

[0002] The trenchless underground pipeline laying device is a type of equipment that can lay underground pipelines without large-scale excavation of the ground. Through guiding and directional drilling technology, a guide hole is formed on the ground surface using a drilling machine, and then the pipeline is pulled or pushed from the hole to the predetermined position. The device has the advantages of high construction efficiency, minimal impact on ground traffic and the environment, and reduced earthwork excavation. It is applied to the construction of underground pipelines in urban municipal, gas, and power sectors, and can achieve the safe laying of pipelines without damaging the road surface, vegetation, and existing facilities.

[0003] A search revealed Chinese patent publication number CN220022134U, which discloses a cable laying puller for underground pipelines. This utility model relates to the field of cable laying pullers and includes a base plate with rollers rotatably mounted on both sides. Support frames are fixedly mounted on both sides of the bottom of the base plate. A protective shell is fixedly mounted on the top of the base plate away from the rollers. A handle is fixedly mounted on the top of the base plate near the protective shell. A fixing plate is fixedly mounted on the side of the base plate near the protective shell. A first support is fixedly mounted on the top of the fixing plate away from the protective shell. In this utility model, through the setting of a second bracket and spray nozzles, when installing cables, the operator passes the cables through the inlet hole, brush, and outlet hole. Starting the rotating motor will cause the brush to rotate, and the two spray nozzles will spray and wash the outside of the cables. Through the cooperation of the brush and spray nozzles, the mud left on the cables is prevented from damaging the subsequent conveying device. However, in actual use, during the laying process, the cable cannot be accurately positioned underground, which affects the laying process and makes it impossible to make effective adjustments based on the actual position. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a trenchless underground cable laying device, which aims to improve the problem that the cable cannot be accurately located underground during the laying process, which affects the laying process and makes it impossible to make effective adjustments based on the actual location.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a trenchless underground transmission line laying device, comprising a base, a transmission mechanism on the top of the base, a housing on the left side of the transmission mechanism, a tunneling mechanism on the inner left side of the housing, the tunneling mechanism being used for underground tunneling and providing navigation and positioning, a correction mechanism on the right side of the tunneling mechanism, the correction mechanism being used to correct errors caused by navigation using geomagnetism, a control mechanism on the right side of the correction mechanism, and a traction mechanism on the right side of the housing; The tunneling mechanism includes a drill bit, the right side of which is rotatably connected to the left side of the housing. A motor is fixedly connected to the inner left end of the housing. A pressure sensor is fixedly connected to the top of the motor. An inertial sensor is fixedly connected to the right side of the motor. A laser receiver is fixedly connected to the right side of the housing. A laser reference station is fixedly connected to the top left side of the base. A support assembly is provided on the outside of the inertial sensor.

[0006] The above technical solution involves: a drill bit used for underground excavation; a motor providing power for the drill bit's rotation; a pressure sensor collecting the drill bit's excavation pressure and feeding it back to the control mechanism; an inertial sensor acquiring motion data for inertial navigation; a laser reference station emitting a laser beam to provide a directional reference; and a laser receiver receiving the laser signal, working in conjunction with inertial navigation to calibrate the excavation direction.

[0007] As a further description of the above technical solution: The correction mechanism includes a shield, with the left side of the shield positioned on the right side of the tunneling mechanism. Multiple buffer supports are fixedly connected to the inner side of the shield, and geomagnetic sensors are fixedly connected between adjacent buffer supports. A heat dissipation assembly is provided on the top of the shield, and multiple bolts are provided at the four corners of the top of the heat dissipation assembly.

[0008] The above technical solution involves: a shield to isolate electromagnetic interference and protect the geomagnetic sensor; a buffer support to support the geomagnetic sensor and buffer vibration; the geomagnetic sensor to collect geomagnetic field data to correct inertial navigation errors; and bolts to fix the heat dissipation components to the shield.

[0009] As a further description of the above technical solution: The support assembly includes a fixing ring, the inner side of which is fixedly connected to the outer side of the inertial sensor, and multiple brackets are fixedly connected to the outer side of the fixing ring.

[0010] The above technical solution involves fixing the inertial sensor with a fixing ring and distributing the supporting force of the inertial sensor to the outer shell, thus stabilizing the installation position of the inertial sensor within the outer shell.

[0011] As a further description of the above technical solution: The heat dissipation assembly includes a cover plate, the bottom of which is fixedly connected to the top of the shielding cover, and a heat sink is fixedly connected to the top of the cover plate.

[0012] The above technical solution involves: a cover plate sealing the top of the shield and providing a base for heat dissipation installation; and heat sinks increasing the heat dissipation area.

[0013] As a further description of the above technical solution: The pulling mechanism includes a fixed base, the left side of which is fixedly connected to the right side of the outer shell, and an iron ring is fixedly connected to the outer wall of the fixed base.

[0014] The above technical solution involves using a fixed base to connect the outer casing and the cable, fixing the starting end of the cable, and using an iron ring to encase the cable, thereby enhancing the connection strength between the cable and the fixed base and preventing it from falling off during traction.

[0015] As a further description of the above technical solution: The control mechanism includes a protective frame, with the left side of the protective frame positioned on the right side of the correction mechanism, and a control plate fixedly connected to the bottom inner side of the protective frame.

[0016] The above technical solution involves a protective frame that protects the control board and its internal components. The control board receives data from pressure sensors, inertial sensors, and geomagnetic sensors to control the motor speed and tunneling direction.

[0017] As a further description of the above technical solution: The transmission mechanism includes a pipe jacking machine, the bottom of which is fixedly connected to the top of the base. A drive motor is fixedly connected to the top left side of the pipe jacking machine. A protective sheath is connected to the left side of the pipe jacking machine. A cable assembly is provided on the top right side of the pipe jacking machine.

[0018] The above technical solution involves: the pipe jacking machine providing power to push the cable pipe underground, the drive motor driving the cable pipe from the pipe reel into the pipe jacking machine, and the protective sheath wrapping the cable pipe to prevent the cable pipe from being damaged by soil and rocks during the jacking process.

[0019] As a further description of the above technical solution: The cable assembly includes a reel, the bottom of which is fixedly connected to the top right side of the pipe jacking machine, and a cable conduit is fixedly connected to the outer wall of the reel.

[0020] The above technical solution involves storing and winding cable conduits on a reel, which then carries and transmits the cable, and is laid to the target underground location using a pipe jacking machine.

[0021] This utility model has the following beneficial effects: 1. In this utility model, the drill bit is connected to the motor, which provides power to drive the drill bit to rotate and realize underground tunneling. The pressure sensor collects the tunneling pressure of the drill bit and feeds it back, adjusting the drill bit speed in real time to adapt to different stratum resistances. The inertial sensor collects the motion data of the device to realize inertial navigation. The laser reference station assists in calibrating the tunneling direction. During the laying process, the device tunnels along a predetermined trajectory in the stratum, enabling the cable to effectively obtain an accurate laying position when underground, improving work efficiency, and effectively making timely adjustments based on the actual position.

[0022] 2. In this utility model, the shielding cover isolates external electromagnetic signals and protects the internal geomagnetic sensor from electromagnetic interference. The inner buffer support is connected to the geomagnetic sensor, which buffers vibration and avoids impact during device operation, ensuring stable operation of the geomagnetic sensor. The cover plate seals the top of the shielding cover to accelerate heat dissipation. Bolts fix the cover plate to the top of the shielding cover to ensure reliable installation of the heat dissipation components, accurately correct the offset error of the inertial sensor, and ensure the accuracy of navigation and positioning of the trenchless underground transmission line laying device. Attached Figure Description

[0023] Figure 1 This is a perspective view of a trenchless underground transmission line laying device proposed in this utility model; Figure 2 This is a cross-sectional view of the outer casing of a trenchless underground transmission line laying device proposed in this utility model. Figure 3 This is a split view of the motor in a trenchless underground transmission line laying device proposed in this utility model; Figure 4 This is an exploded view of the correction mechanism in a trenchless underground transmission line laying device proposed in this utility model. Figure 5 This is a schematic diagram of the transmission mechanism in a trenchless underground transmission line laying device proposed in this utility model.

[0024] Legend: 1. Base; 2. Housing; 3. Tunneling mechanism; 301. Drill bit; 302. Motor; 303. Pressure sensor; 304. Inertial sensor; 305. Laser reference station; 306. Laser receiver; 307. Support assembly; 3071. Fixing ring; 3072. Bracket; 4. Correction mechanism; 401. Shielding cover; 402. Buffer support; 403. Geomagnetic sensor; 404. Bolt; 405. Heat dissipation assembly; 4051. Cover plate; 4052. Heat sink; 5. Pulling mechanism; 501. Fixing seat; 502. Iron ring; 6. Control mechanism; 601. Protective frame; 602. Control board; 7. Cable conveying mechanism; 701. Pipe jacking machine; 702. Drive motor; 703. Protective sheath; 704. Cable assembly; 7041. Pipe reel; 7042. Cable conduit. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model is provided: a trenchless underground transmission line laying device, including a base 1, a transmission mechanism 7 is provided on the top of the base 1, a housing 2 is provided on the left side of the transmission mechanism 7, a tunneling mechanism 3 is provided on the inner left end of the housing 2, the tunneling mechanism 3 is used for tunneling underground and providing navigation and positioning, a correction mechanism 4 is provided on the right side of the tunneling mechanism 3, the correction mechanism 4 is used to correct errors caused by navigation using geomagnetism, a control mechanism 6 is provided on the right side of the correction mechanism 4, and a pulling mechanism 5 is provided on the right side of the housing 2; The tunneling mechanism 3 includes a drill bit 301. The right side of the drill bit 301 is rotatably connected to the left side of the housing 2. A motor 302 is fixedly connected to the inner left end of the housing 2. A pressure sensor 303 is fixedly connected to the top of the motor 302. An inertial sensor 304 is fixedly connected to the right side of the motor 302. A laser receiver 306 is fixedly connected to the right side of the housing 2. A laser reference station 305 is fixedly connected to the top left side of the base 1. A support assembly 307 is provided on the outside of the inertial sensor 304. The support assembly 307 includes a fixing ring 3071. The inner side of the fixing ring 3071 is fixedly connected to the outside of the inertial sensor 304. Multiple brackets 3072 are fixedly connected to the outside of the fixing ring 3071. Specifically, the base 1 supports the cable transmission mechanism 7 on its top. The cable transmission mechanism 7 is used to transport and lay cables underground. A housing 2 is located on the left side of the cable transmission mechanism 7; the housing 2 is the casing of the underground tunneling device. A tunneling mechanism 3 is located on the inner left side of the housing 2; the tunneling mechanism 3 is used for underground tunneling and provides navigation and positioning. A correction mechanism 4 is located on the right side of the tunneling mechanism 3; the correction mechanism 4 is used to correct navigation errors using geomagnetism. A control mechanism 6 is located on the right side of the correction mechanism 4. The control mechanism 6 is used to receive information collected by the tunneling mechanism 3 and the correction mechanism 4 and to control the tunneling mechanism 3. A traction mechanism 5 is provided on the right side of the outer casing 2. The traction mechanism 5 is used to pull the tail of the tunneling mechanism 3 to be laid. The tunneling mechanism 3 includes a drill bit 301, which is used for underground tunneling. The right side of the drill bit 301 is rotatably connected to the left side of the outer casing 2. A motor 302 is fixedly connected to the inner left end of the outer casing 2. The motor 302 provides digging power to the drill bit 301. A pressure sensor 303 is fixedly connected to the top of the motor 302. Pressure sensor 303 collects the tunneling pressure fed back from drill bit 301 to motor 302, provides real-time feedback on formation resistance, and automatically adjusts the speed of drill bit 301. An inertial sensor 304 is fixedly connected to the right side of motor 302, using data from inertial sensor 304 for inertial navigation. A laser receiver 306 is fixedly connected to the right side of housing 2, receiving laser light emitted from laser reference station 305 to prevent deviation from the tunneling direction, cooperating with inertial navigation. A laser reference station 305 is fixedly connected to the top left side of base 1. 5. A support assembly 307 is provided on the outside of the inertial sensor 304. The support assembly 307 is used to stably support the position of the tunneling mechanism 3 inside the housing 2. The support assembly 307 includes a fixing ring 3071, which supports the inertial sensor 304, thereby supporting the tunneling mechanism 3 as a whole inside the housing 2. The inner side of the fixing ring 3071 is fixedly connected to the outer side of the inertial sensor 304. Multiple brackets 3072 are fixedly connected to the outer side of the fixing ring 3071. The brackets 3072 distribute the force to the housing 2.

[0027] Reference Figure 1 and Figure 5 The correction mechanism 4 includes a shield 401. The left side of the shield 401 is located on the right side of the tunneling mechanism 3. Multiple buffer supports 402 are fixedly connected to the inner side of the shield 401. A geomagnetic sensor 403 is fixedly connected between adjacent buffer supports 402. A heat dissipation assembly 405 is provided on the top of the shield 401. Multiple bolts 404 are provided at the four corners of the top of the heat dissipation assembly 405. The heat dissipation assembly 405 includes a cover plate 4051. The bottom of the cover plate 4051 is fixedly connected to the top of the shield 401. A heat sink 4052 is fixedly connected to the top of the cover plate 4051. Specifically, the shielding cover 401 protects the internal geomagnetic sensor 403 from electromagnetic interference. The left side of the shielding cover 401 is located on the right side of the tunneling mechanism 3. Multiple buffer supports 402 are fixedly connected to the inner side of the shielding cover 401. The buffer supports 402 prevent the geomagnetic sensor 403 from shaking or being impacted. Geomagnetic sensors 403 are fixedly connected between adjacent buffer supports 402. The geomagnetic sensor 403 uses the principle of geomagnetism to correct the offset error of the inertial sensor 304. A heat dissipation component 405 is provided on the top of the shielding cover 401 to dissipate heat. The heat dissipation component 405 dissipates the heat inside the shield 401. Multiple bolts 404 are provided at the four corners of the top of the heat dissipation component 405. The bolts 404 fix the cover plate 4051 to the top of the shield 401. The heat dissipation component 405 includes the cover plate 4051. The cover plate 4051 covers the top of the shield 401 and has a good heat dissipation function. The bottom of the cover plate 4051 is fixedly connected to the top of the shield 401. A heat sink 4052 is fixedly connected to the top of the cover plate 4051. The heat sink 4052 increases the contact area with air.

[0028] Reference Figure 1 , Figure 2 and Figure 4 The pulling mechanism 5 includes a fixed seat 501, the left side of which is fixedly connected to the right side of the outer shell 2, and an iron ring 502 is fixedly connected to the outer wall of the fixed seat 501. The control mechanism 6 includes a protective frame 601, the left side of which is located on the right side of the correction mechanism 4, and a control plate 602 is fixedly connected to the bottom inner side of the protective frame 601. Specifically, the fixing seat 501 is used to fix the protective skin 703 to ensure that the cable being pulled does not fall off during travel. The left side of the fixing seat 501 is fixedly connected to the right side of the outer shell 2. An iron ring 502 is fixedly connected to the outer wall of the fixing seat 501. The iron ring 502 strengthens the fixation between the cable and the fixing seat 501 and prevents bending and falling. The control mechanism 6 includes a protective frame 601, which protects the internal control board 602 and components. The left side of the protective frame 601 is located on the right side of the correction mechanism 4. The control board 602 is fixedly connected to the bottom inner side of the protective frame 601. The control board 602 collects and sends control information.

[0029] Reference Figure 1 and Figure 5 The transmission mechanism 7 includes a pipe jacking machine 701. The bottom of the pipe jacking machine 701 is fixedly connected to the top of the base 1. A drive motor 702 is fixedly connected to the top left side of the pipe jacking machine 701. A protective sheath 703 is connected to the left side of the pipe jacking machine 701. A cable assembly 704 is provided on the top right side of the pipe jacking machine 701. The cable assembly 704 includes a reel 7041. The bottom of the reel 7041 is fixedly connected to the top right side of the pipe jacking machine 701. A cable conduit 7042 is fixedly connected to the outer wall of the reel 7041. Specifically, the pipe jacking machine 701 pushes out the cable conduit 7042 and delivers it into the protective sheath 703. The bottom of the pipe jacking machine 701 is fixedly connected to the top of the base 1. A drive motor 702 is fixedly connected to the top left side of the pipe jacking machine 701. The drive motor 702 drives the cable conduit 7042 to be conveyed into the pipe jacking machine 701. The protective sheath 703 is connected to the left side of the pipe jacking machine 701. The protective sheath 703 protects the cable conduit 7042 from being damaged by soil and rocks during transmission. A cable assembly 704 is set on the top right side of the pipe jacking machine 701. The cable assembly 704 is the cable to be laid. The cable assembly 704 includes a reel 7041. The reel 7041 winds up and stores the cable conduit 7042. The bottom of the reel 7041 is fixedly connected to the top right side of the pipe jacking machine 701. The cable conduit 7042 is fixedly connected to the outer wall of the reel 7041.

[0030] Working principle: The base 1 is fixed at the starting position of construction. The cable conveying mechanism 7 is installed on the top of the base 1. The bottom of the pipe jacking machine 701 is fixed to the base 1. The drive motor 702 is installed on the top left side of the pipe jacking machine 701. The cable conduit 7042 is wound on the pipe reel 7041 and is connected to the right side of the pipe jacking machine 701. The protective sheath 703 is connected to the left side of the pipe jacking machine 701. After the device is started, the motor 302 in the tunneling mechanism 3 drives the drill bit 301 to rotate and begin tunneling underground. The pressure sensor 303 on the top of the motor 302 collects the tunneling feedback from the drill bit 301 in real time. Pressure is transmitted to the control board 602 of the control mechanism 6. The control board 602 automatically adjusts the rotation speed of the drill bit 301 according to the pressure. The inertial sensor 304 collects motion data for inertial navigation. The laser reference station 305 emits a laser, and the laser receiver 306 on the right side of the housing 2 receives the laser signal. In conjunction with the inertial navigation, it prevents deviation from the tunneling direction. The fixing ring 3071 and bracket 3072 in the support assembly 307 stably support the inertial sensor 304 to ensure measurement accuracy. During tunneling, the geomagnetic sensor 403 of the correction mechanism 4 uses the principle of geomagnetism to correct the tunneling direction. The offset error generated by the positive inertial sensor 304 is mitigated by the shielding cover 401 protecting the geomagnetic sensor 403 from electromagnetic interference, the buffer support 402 preventing the geomagnetic sensor 403 from shaking and impact, and the heat dissipation assembly 405's cover plate 4051 and heat sink 4052 dissipating heat from the shielding cover 401. The corrected data is transmitted to the control board 602, which then precisely controls the travel direction of the tunneling mechanism 3. The fixing seat 501 of the traction mechanism 5 is fixed to the right side of the outer casing 2, and the cable passes through the fixing seat 501 and is reinforced by the iron ring 502. As the drill bit 301 moves forward... During tunneling, the traction mechanism 5 pulls the cable at the tail of the device, while the drive motor 702 of the transmission mechanism 7 drives the cable pipe 7042 to be conveyed into the pipe jacking machine 701. The pipe jacking machine 701 pushes out the cable pipe 7042 and conveys it into the protective sheath 703. The protective sheath 703 prevents the cable pipe 7042 from being damaged by soil and rock friction during transmission. This achieves multi-source fusion positioning using inertial navigation, geomagnetic correction, and laser reference station 305 without excavating the ground. The cumulative error is eliminated by Kalman filtering algorithm, thereby reducing the positioning error at underground depth and laying the cable to the target position underground.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A trenchless underground transmission line laying device, comprising a base (1), characterized in that: The base (1) is provided with a transmission mechanism (7) on its top. The transmission mechanism (7) is provided with a housing (2) on its left side. The housing (2) is provided with a tunneling mechanism (3) on its inner left side. The tunneling mechanism (3) is used for tunneling underground and providing navigation and positioning. The tunneling mechanism (3) is provided with a correction mechanism (4) on its right side. The correction mechanism (4) is used to correct errors caused by navigation using geomagnetism. The correction mechanism (4) is provided with a control mechanism (6) on its right side. The housing (2) is provided with a pulling mechanism (5) on its right side. The tunneling mechanism (3) includes a drill bit (301), the right side of which is rotatably connected to the left side of the housing (2). A motor (302) is fixedly connected to the inner left end of the housing (2). A pressure sensor (303) is fixedly connected to the top of the motor (302). An inertial sensor (304) is fixedly connected to the right side of the motor (302). A laser receiver (306) is fixedly connected to the right side of the housing (2). A laser reference station (305) is fixedly connected to the top left side of the base (1). A support assembly (307) is provided on the outside of the inertial sensor (304).

2. The trenchless underground transmission line laying device according to claim 1, characterized in that: The correction mechanism (4) includes a shield (401), the left side of which is located on the right side of the tunneling mechanism (3). Multiple buffer supports (402) are fixedly connected to the inner side of the shield (401). A geomagnetic sensor (403) is fixedly connected between adjacent buffer supports (402). A heat dissipation assembly (405) is provided on the top of the shield (401), and multiple bolts (404) are provided at the four corners of the top of the heat dissipation assembly (405).

3. The trenchless underground transmission line laying device according to claim 1, characterized in that: The support assembly (307) includes a fixing ring (3071), the inner side of which is fixedly connected to the outer side of the inertial sensor (304), and a plurality of brackets (3072) are fixedly connected to the outer side of the fixing ring (3071).

4. The trenchless underground transmission line laying device according to claim 2, characterized in that: The heat dissipation assembly (405) includes a cover plate (4051), the bottom of which is fixedly connected to the top of the shield (401), and a heat sink (4052) is fixedly connected to the top of the cover plate (4051).

5. The trenchless underground transmission line laying device according to claim 1, characterized in that: The pulling mechanism (5) includes a fixed seat (501), the left side of which is fixedly connected to the right side of the outer shell (2), and an iron ring (502) is fixedly connected to the outer wall of the fixed seat (501).

6. The trenchless underground transmission line laying device according to claim 1, characterized in that: The control mechanism (6) includes a protective frame (601), the left side of which is located on the right side of the correction mechanism (4), and a control plate (602) is fixedly connected to the bottom inner side of the protective frame (601).

7. The trenchless underground transmission line laying device according to claim 1, characterized in that: The transmission mechanism (7) includes a pipe jacking machine (701), the bottom of which is fixedly connected to the top of the base (1), a drive motor (702) is fixedly connected to the top left side of the pipe jacking machine (701), a protective sheath (703) is connected to the left side of the pipe jacking machine (701), and a cable assembly (704) is provided on the top right side of the pipe jacking machine (701).

8. The trenchless underground transmission line laying device according to claim 7, characterized in that: The cable assembly (704) includes a reel (7041), the bottom of which is fixedly connected to the top right side of the pipe jacking machine (701), and a cable conduit (7042) is fixedly connected to the outer wall of the reel (7041).

Images