A pole installation device and method for overhead line construction

Abstract

This invention discloses a pole installation device and method for overhead line engineering, relating to the field of pole installation technology. It includes a rotating support, a drilling assembly, flexible fasteners, an adjusting drive disc, and a centering and compacting assembly. The invention uses an annular bladder to flexibly grip the upper part of the pole, and several dynamic centering ends to circumferentially roll and compress the lower part of the pole. This ensures that both the upper and lower parts of the pole receive a uniform corrective force towards the center point, achieving precise centering and positioning of the entire pole. An electric turntable drives several centering and compacting assemblies to rotate around the pole, allowing the dynamic centering ends to continuously press against the lower part of the pole during their revolution, thus dynamically straightening the pole while compacting the soil layer. A frustum-shaped compacting roller, rotating on its own axis while revolving, compacts the soil layer around the pit, and utilizes the pressure difference created by different diameter areas of the compacting roller to gradually gather the soil dispersed around the pit towards the base of the pole while being compacted.

Description

Technical Field

[0001] This invention relates to the field of pole installation technology, specifically a pole installation device and method for overhead line projects. Background Technology

[0002] Pole construction is a crucial foundational task in the development of power distribution networks, communication lines, and municipal infrastructure. It primarily provides stable support for overhead conductors, optical cables, lighting equipment, and related electrical facilities. Because poles are exposed to the elements for extended periods, they must withstand various factors such as conductor tension, wind loads, rain erosion, ground settlement, and operational vibrations. Therefore, the quality of pole construction directly impacts the safety, stability, and subsequent maintenance costs of the power lines.

[0003] In the current construction process of utility pole erection, drilling, pole erection, and backfilling often require frequent changes of different construction equipment, leading to delays in the construction period. Switching between procedures can easily cause errors to increase. At the same time, it is difficult to keep the gathering, compaction, and density of the backfill soil around the pole synchronized with the pole's posture. Areas near the pole base are prone to problems such as inadequate compaction and localized loose filling, which in turn affect the verticality and stability of the pole after erection, resulting in poor pole quality. Summary of the Invention

[0004] The purpose of this invention is to provide a pole installation device and method for overhead line projects, so as to solve the problem of low pole quality in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pole installation device for overhead line engineering, comprising a rotating bracket, flexible fasteners and several centering and compaction components, a drilling component slidably mounted on the rotating bracket, and an adjustment drive disc mounted on one side of the rotating bracket; The centering and compaction assembly includes a first telescopic component, several first telescopic components are circumferentially mounted on an adjustment drive disk, an adjustment rod is mounted on the output shaft of the first telescopic component, a compaction roller is rotatably mounted on the adjustment rod, a dynamic centering end is mounted on one end of the adjustment rod, and several detection teeth are mounted on the compaction roller. The flexible fastener includes a third telescopic component, which is slidably mounted on a rotating bracket. A fixing ring is mounted on the output shaft of the third telescopic component, and several annular bladders are mounted on the fixing ring. A filling device is connected to the fixing ring through a pipe.

[0006] The mounting device is externally connected to a control system, which can control the operation of the entire mounting device. The filling device is used to input or output filling medium into the fixed ring through a pipeline. The filling medium, which inflates the annular bladder, can be air or hydraulic oil. The filling device is mounted on the second slider. The first, second, and third telescopic components are all electrically operated telescopic rods.

[0007] After drilling is completed, the control system restarts the rotating seat, which drives the drilling assembly on the sliding column to rotate away, causing the flexible fastener on the other side to rotate above the adjustment drive disc. The control system then activates the third telescopic component, which drives the flexible fastener to extend and retract, aligning the center point of the flexible fastener with the center point of the pole. Subsequently, the hoisting device lifts the pole to the vicinity of the pit, inserting the lower part of the pole into the pit. Then, the second slider lowers the flexible fastener, and the hoisting device adjusts the position of the upper part of the pole so that the lowered fixing ring is fitted onto the upper part of the pole. The hoisting device is then removed. At this point, the fixing ring and the lower pit cooperate to form the initial centering and positioning of the pole.

[0008] Furthermore, the tamping roller has a sloping cross-section, several teeth, several detection teeth, and grooves. The detection teeth include an elastic sleeve and a liner. The elastic sleeve is installed between the teeth, and the liner is in close contact with the elastic sleeve. A force transmission rod is installed on the liner, and the force transmission rod is slidably connected to the compaction roller. A first elastic element is installed between the force transmission rod and the compaction roller. A trigger element is installed on the force transmission rod. A guard plate is installed inside the compaction roller, and a feedback element is installed between the guard plates.

[0009] The compaction roller has an overall frustum shape, giving it a sloping cross-section. The elastic sleeve is made of a wear-resistant material, such as a wear-resistant rubber sleeve. The feedback element can be a piezoelectric element, which generates an electrical signal proportional to the pressure applied.

[0010] Furthermore, the adjusting rod includes a connector, which is mounted on the output shaft of the first telescopic member. A slide rod is mounted on the connector, and a dynamic centering end is mounted on one end of the slide rod. A threaded rod is rotatably mounted between the dynamic centering end and the connector. A sliding seat is slidably mounted on the slide rod, and the sliding seat is threadedly connected to the threaded rod. A compaction roller is rotatably mounted on the sliding seat. A motor is mounted on the connector, and the motor output shaft passes through the connector and is connected to the threaded rod.

[0011] After the pole is precisely aligned and positioned, the control system activates the electric turntable. The turntable drives several alignment and compaction components to rotate around the pole. The rolling wheel at the dynamic alignment end rotates around the pole while using the rolling friction between the flexible sleeve and the pole to generate its own rotation. This achieves continuous compression of the lower part of the pole while rotating, thus enabling dynamic alignment of the pole even when compacting the soil layer, preventing secondary displacement of the pole when the backfill soil is under pressure.

[0012] While the central compaction component rotates, its compaction rollers revolve synchronously. The compaction rollers generate friction by engaging with the soil layer through their teeth, causing the compaction rollers to rotate around the sliding seat. As the compaction rollers rotate, they compress and compact the soil scattered around the pit. Because the compaction rollers are designed with a frustum shape, the larger diameter area generates greater compressive force on the soil layer, while the smaller diameter area generates less compressive force. Under the action of the pressure difference, the soil under greater pressure will be pushed to the area with less pressure. That is, the soil will migrate from the area with a larger diameter of the compaction roller to the area with a smaller diameter under the action of compression. Under the combined action of several compaction rollers, the soil edges are compacted and converge from all sides towards the pole. At the same time, the control system starts the motor, and the motor output shaft drives the threaded rod to rotate slowly. According to the principle of screw and slider, the threaded rod drives the sliding round seat to slide along the slide rod towards the pole through the thread. The sliding round seat drives the compaction roller on it to gradually approach the pole. The compaction roller compacts the soil while gathering the soil towards the pole.

[0013] When the compaction roller approaches the base of the pole, its groove covers the dynamic centering end, preventing the area close to the pole from becoming a roller compaction blind spot due to the obstruction of the dynamic centering end, which could cause the pole to loosen and shift. This achieves full coverage of the soil around the pole during compaction.

[0014] After the compaction roller completes the first pass of compaction, the control system activates the lifting base. The lifting base, via an electric turntable, lifts several centering compaction components upwards, causing the compaction roller to detach from the already compacted soil layer. Subsequently, the control system retracts the first telescopic component and, via a motor, reverses the movement of the sliding circular seat, returning the compaction roller to its initial compaction position.

[0015] After resetting, the lifting base again lowers the electric turntable and centering compaction assembly, bringing the compaction roller to a working height lower than the initial compaction height. At this point, the compaction roller applies greater downward pressure to the soil layer, and the control system restarts the centering compaction assembly for a higher level of compaction of the backfill. During compaction, the detection teeth continuously collect data on the soil reaction force and feed the corresponding signals back to the control system. The control system then judges the soil compaction degree in real time based on the feedback data. When the detection results indicate that the overall compaction degree meets the preset requirements, the control system stops operation. This achieves multi-stage progressive compaction of the backfill around the pole, ensuring uniform compaction and avoiding localized insufficient compaction.

[0016] Furthermore, the dynamic centering end includes an arc-shaped end frame, on which several rotating shafts are mounted, and rolling wheels are rotatably mounted on the rotating shafts. Flexible sleeves are mounted on the rolling wheels. The arc-shaped end frame is connected to a sliding rod, and a threaded rod is rotatably connected to the arc-shaped end frame.

[0017] The flexible sleeve can be a rubber sleeve with anti-slip texture, which provides flexible protection when the rolling wheel rotates and is squeezed on the surface of the pole, thus avoiding damage to the pole.

[0018] After initial alignment and positioning, the control system activates the filling device, which injects filling medium into the expansion chamber. The filling medium then enters the annular bladder, causing the bladder to expand and wrap around the pole. The upper part of the pole, subjected to uniform pressure from all sides towards the center, begins to move towards the pole's center point, thus achieving precise alignment and positioning of the upper part. Subsequently, the control system simultaneously activates several first telescopic components. The output shafts of these components, via adjusting rods, drive the dynamic alignment ends towards the lower part of the pole. Rollers on the dynamic alignment ends, through flexible sleeves, press against the pole, causing the lower part to align with the pole's center point under uniform pressure, thus achieving precise alignment and positioning of the lower part. Ultimately, precise alignment and positioning of the entire pole is achieved.

[0019] Furthermore, the triggering element includes a sliding shell, which is installed at the bottom end of the force transmission rod. A contact rod is slidably installed inside the sliding shell, and a second elastic element is installed between the contact rod and the sliding shell.

[0020] The first and second elastic elements are springs. When the trigger presses against the feedback element, the contact rod first abuts against the feedback element. As the sliding shell continues to advance, the contact rod retracts relative to the sliding shell under the reaction force of the feedback element, and the second elastic element is compressed. The greater the extension of the trigger, the greater the reverse pressure on the contact rod, the greater its retraction relative to the sliding shell, and the greater the compression of the second elastic element.

[0021] When the detection teeth are used to compact the soil layer with the compaction roller, if the soil layer is relatively compacted, the reverse resistance encountered by the detection teeth after embedding in the soil layer is greater. Under pressure, the liner plate compresses the first elastic element through the force transmission rod, causing the first elastic element to generate a larger compression amount and driving the trigger element to extend further towards the feedback element. The compressive force of the trigger element on the feedback element is stronger, and the feedback element generates a stronger electrical signal. Conversely, if the soil layer is relatively loose, the reverse resistance encountered by the detection teeth when embedding in the soil layer is smaller. The pressure exerted by the liner plate on the first elastic element through the force transmission rod is weaker, the compression amount of the first elastic element is smaller, the extension distance of the trigger element towards the feedback element is shorter, the pressure on the feedback element is lower, and the generated electrical signal strength is also weaker.

[0022] The control system identifies and judges the compaction degree of the soil layer based on the strength of the received electrical signal, thereby realizing real-time detection of the compaction degree of the soil layer.

[0023] Furthermore, a first front sleeve and a second front sleeve are respectively installed between the sliding round seat and the arc-shaped end frame, and a first rear sleeve and a second rear sleeve are respectively installed between the sliding round seat and the connecting piece. The threaded rod passes through the first front sleeve and the first rear sleeve, and the sliding rod passes through the second front sleeve and the second rear sleeve.

[0024] The first front sheath, the second front sheath, the first rear sheath, and the second rear sheath are all made of elastic and extensible material. They can expand and contract as the distance between the sliding round seat and the arc-shaped end frame and the connecting parts changes. The sheaths are used to block soil.

[0025] Furthermore, an expansion chamber is provided inside the fixed ring, which is connected to the interior of the annular bladder. An air inlet is provided on one side of the expansion chamber, and the air inlet is connected to the filling device through a pipe.

[0026] The annular bladder is an inflatable rubber airbag.

[0027] Furthermore, the adjustment drive plate includes a lifting base, an electric turntable is installed on the lifting base, and several first telescopic components are circumferentially installed at the bottom end of the electric turntable. The rotating support includes a fixed platform, a rotating seat mounted on the fixed platform, a sliding column mounted on the rotating seat, a drilling assembly slidably mounted on one side of the sliding column, a second slider slidably mounted on the other side of the sliding column, and a third telescopic component mounted on the second slider.

[0028] Furthermore, the drilling assembly includes a first slider, which is slidably mounted on a sliding post. A second telescopic member is mounted on the first slider, and a driver is mounted on the second telescopic member. A drill bit is mounted on the output shaft of the driver.

[0029] The driver is used to drive the drill bit to rotate.

[0030] During operation, the entire device is first positioned at the center point of the pole, ensuring the center point is precisely at the center of the adjustment drive disc. After setup, the control system activates the rotating base, which in turn rotates the rotating support, which in turn rotates the drilling assembly above the adjustment drive disc. Then, the second telescopic component is used to adjust the positions of the driver and drill bit, aligning the drill bit's center with the pole's center point. The control system then activates the driver and the first slider. The driver rotates the drill bit, and the first slider drives the rotating drill bit downwards to drill through the soil. Due to the drill bit's spiral structure, some soil is expelled during drilling. Once the preset depth is reached, the control system shuts off the drill bit and pulls it back using the first slider. This pulling back of the drill bit brings out another portion of soil. The soil expelled during drilling and the soil brought out during pulling are dispersed around the pit, thus completing the pit construction.

[0031] A method for installing utility poles for overhead power line projects includes the following steps: S1. The rotating seat drives the drilling assembly to rotate above the adjustment drive plate through the rotating bracket. The position of the driver and the drill bit is adjusted by the second telescopic component so that the center of the drill bit is aligned vertically with the center point of the upright. The driver and the first slider are turned on. The driver drives the drill bit to rotate, and the first slider drives the rotating drill bit to drill a hole downward. S2. Using the hoisting device, insert the lower part of the pole into the pit. The second slider drives the centering flexible fastener to descend. The hoisting device adjusts the position of the upper part of the pole so that the descending fixing ring is fitted onto the upper part of the pole. Remove the hoisting device to complete the pole erection and preliminary centering positioning. S3. Using a filling device, fill the expansion chamber with filling medium, causing the annular bladder to expand and wrap around the pole, thus completing the precise centering and positioning of the upper part of the pole; through several first telescopic components, the dynamic centering end is simultaneously driven to squeeze the lower part of the pole, so that the lower part of the pole is aligned with the center point of the column under the circumferential compression, thus completing the precise centering and positioning of the entire pole. S4. Using the adjustment drive disc to drive several centering compaction components to compact the backfill soil, the compaction degree of the soil layer is detected by the detection teeth, and the centering compaction components are used to perform multi-stage progressive compaction of the backfill soil according to the compaction degree to complete the backfilling.

[0032] Compared with the prior art, the beneficial effects of the present invention are: 1. Through the cooperation of drilling components, flexible fasteners and centering and compaction components, the device can sequentially complete drilling, pole centering and positioning and backfilling compaction at the same pole center point. The rotating support enables quick switching between different operation modules, reducing the time delay caused by repeated entry of multiple sets of equipment, avoiding construction errors caused by re-alignment, and enabling continuous and efficient pole construction.

[0033] 2. A ring-shaped bladder provides a flexible circumferential grip to the upper part of the pole, while several dynamic centering ends apply circumferential rolling compression to the lower part. This ensures that both the upper and lower parts of the pole receive a uniform corrective force towards the center point, achieving precise centering and positioning of the entire pole. An electric turntable drives several centering and compaction components to rotate around the pole, allowing the dynamic centering ends to continuously press against the lower part of the pole during their revolution. This provides dynamic alignment of the pole even during the compaction of the soil layer, preventing secondary displacement of the pole caused by the migration of backfill soil under pressure.

[0034] 3. The soil around the pit is compacted by the truncated cone-shaped compaction roller rotating on its own axis while revolving around the pit. The pressure difference formed by the different diameter areas of the compaction roller is used to make the soil dispersed around the pit gradually gather towards the base of the pole while being compacted, thus realizing the circumferential compaction and advancement of the backfill soil.

[0035] 4. The compaction roller is driven to gradually approach the pole by the sliding round seat. When the compaction roller approaches the pole, the groove is used to cover the dynamic centering end, so that the compaction roller can cross the blocking area formed by the centering end and fully cover and compact the soil around the pole, reducing the blind spot of the roller near the pole.

[0036] 5. Through the cooperation of the lifting base, sliding round seat and detection teeth, the compaction roller performs multi-stage progressive compaction of the backfill soil. The compaction degree is judged in real time based on the soil reaction force fed back by the detection teeth. The operation is stopped after the compaction degree reaches the standard, so that the backfill soil is evenly compacted and avoids local insufficient compaction.

[0037] 6. The ring-shaped capsule is used to hold the pole. Through its flexible clamping characteristics, it ensures the upper part is aligned while also allowing displacement space for the pole to deflect during the precise alignment of the lower part. This improves the flexibility of clamping and avoids the risk of damage to the pole surface caused by rigid clamping. Attached Figure Description

[0038] Figure 1 This is a perspective view of the pole installation device of the present invention; Figure 2 This is a perspective view of the flexible fastener of the present invention; Figure 3 This is a perspective view of the rotating bracket and drilling assembly of the present invention; Figure 4 This is a perspective view of the adjustment drive disk of the present invention; Figure 5 This is a perspective view of the centering and compaction component of the present invention; Figure 6 This is a perspective view of the dynamic centering end of the present invention; Figure 7 This is a perspective view of the adjusting rod of the present invention; Figure 8 This is a perspective view of the compaction roller of the present invention; Figure 9 This is a cross-sectional view of the compaction roller of the present invention; Figure 10 For the present invention Figure 9 A magnified view of a portion of region A in the middle.

[0039] In the diagram: 1. Rotating support; 2. Drilling assembly; 3. Flexible fastener; 4. Adjusting drive disc; 5. Centering and compaction assembly; 6. First telescopic component; 7. Adjusting rod; 8. Compacting roller; 9. Dynamic centering end; 11. Fixed platform; 12. Rotating seat; 13. Sliding column; 21. First slider; 22. Second telescopic component; 23. Driver; 24. Drill bit; 31. Third telescopic component; 32. Fixed ring; 33. Annular bladder; 34. Expansion chamber; 35. Air inlet; 36. Second slider; 41. Lifting base; 42. Electric turntable; 71. Connector; 72. Electric... 73. Threaded rod; 74. Slide rod; 75. Sliding round seat; 76. First front protective sleeve; 77. First rear protective sleeve; 78. Second front protective sleeve; 79. Second rear protective sleeve; 81. Inclined slope; 82. Biting tooth; 83. Detection tooth; 84. Groove; 831. Elastic sleeve; 832. Liner plate; 833. Force transmission rod; 834. First elastic element; 835. Trigger element; 836. Feedback element; 837. Protective plate; 8351. Sliding shell; 8352. Contact rod; 8353. Second elastic element; 91. Arc-shaped end frame; 92. Rotating shaft; 93. Rolling wheel; 94. Flexible sleeve. Detailed Implementation

[0040] 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 embodiments of the present invention, and not all embodiments. Based on the 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.

[0041] Example: Figures 1-10 As shown, the present invention provides a technical solution: a pole installation device for overhead line engineering, comprising a rotating bracket 1, a flexible fastener 3, and several centering and compaction components 5. A drilling component 2 is slidably installed on the rotating bracket 1, and an adjusting drive disk 4 is installed on one side of the rotating bracket 1. The centering and compaction component 5 includes a first telescopic member 6, several first telescopic members 6 are circumferentially installed on the adjusting drive disk 4, an adjusting rod 7 is installed on the output shaft of the first telescopic member 6, a compaction roller 8 is rotatably installed on the adjusting rod 7, a dynamic centering end head 9 is installed at one end of the adjusting rod 7, and several detection teeth 83 are installed on the compaction roller 8. The flexible fastener 3 includes a third telescopic member 31, the third telescopic member 31 is slidably installed on the rotating bracket 1, a fixing ring 32 is installed on the output shaft of the third telescopic member 31, several annular bladders 33 are installed on the fixing ring 32, and a filling device is externally connected to the fixing ring 32 through a pipe.

[0042] An expansion chamber 34 is provided inside the fixing ring 32. The expansion chamber 34 is connected to the interior of the annular bladder 33. An air inlet 35 is provided on one side of the expansion chamber 34. The air inlet 35 is connected to the filling device through a pipe. The annular bladder 33 is an inflatable rubber airbag.

[0043] When the annular capsule grips the poles, its flexible clamping characteristics ensure upper alignment while also allowing for displacement space during the precise lower alignment of the poles, thus improving clamping flexibility and avoiding the risk of damage to the pole surface caused by rigid clamping.

[0044] The mounting device is externally connected to a control system, which can control the operation of the entire mounting device. A filling device is used to input or output filling medium into the fixed ring 32 via a pipe. The filling medium, which can be air or hydraulic oil, is used to inflate the annular bladder 33. The filling device is mounted on the second slider 36. The first telescopic member 6, the second telescopic member 22, and the third telescopic member 31 are all electrically operated telescopic rods.

[0045] The adjustment drive plate 4 includes a lifting base 41, an electric turntable 42 is installed on the lifting base 41, and a number of first telescopic parts 6 are circumferentially installed at the bottom end of the electric turntable 42. The rotating bracket 1 includes a fixed platform 11, a rotating seat 12 is mounted on the fixed platform 11, a sliding column 13 is mounted on the rotating seat 12, a drilling assembly 2 is slidably mounted on one side of the sliding column 13, a second slider 36 is slidably mounted on the other side of the sliding column 13, and a third telescopic member 31 is mounted on the second slider 36.

[0046] The drilling assembly 2 includes a first slider 21, which is slidably mounted on a sliding post 13. A second telescopic member 22 is mounted on the first slider 21, and a driver 23 is mounted on the second telescopic member 22. A drill bit 24 is mounted on the output shaft of the driver 23. The driver 23 is used to drive the drill bit 24 to rotate.

[0047] The tamping roller 8 has a sloping cross-section 81, and is provided with several teeth 82, several detection teeth 83, and grooves 84. The detection tooth 83 includes an elastic sleeve 831 and a liner 832. The elastic sleeve 831 is installed between the teeth 82. The liner 832 is close to the elastic sleeve 831. A force transmission rod 833 is installed on the liner 832. The force transmission rod 833 is slidably connected to the compaction roller 8. A first elastic element 834 is installed between the force transmission rod 833 and the compaction roller 8. A trigger element 835 is installed on the force transmission rod 833. A protective plate 837 is installed inside the compaction roller 8. A feedback element 836 is installed between the protective plates 837.

[0048] The compaction roller 8 has an overall frustum shape, resulting in a sloped cross-section 81. The elastic sleeve 831 is made of an elastic, wear-resistant material, such as a wear-resistant rubber sleeve. The feedback element 836 can be a piezoelectric element, which generates an electrical signal proportional to the pressure when pressed.

[0049] The adjusting rod 7 includes a connector 71, which is mounted on the output shaft of the first telescopic member 6. A slide rod 74 is mounted on the connector 71. A dynamic centering end 9 is mounted on one end of the slide rod 74. A threaded rod 73 is rotatably mounted between the dynamic centering end 9 and the connector 71. A sliding seat 75 is slidably mounted on the slide rod 74. The sliding seat 75 is threadedly connected to the threaded rod 73. A compaction roller 8 is rotatably mounted on the sliding seat 75. A motor 72 is mounted on the connector 71. The output shaft of the motor 72 passes through the connector 71 and is connected to the threaded rod 73.

[0050] The dynamic centering end head 9 includes an arc-shaped end frame 91, on which several rotating shafts 92 are mounted. Rolling wheels 93 are rotatably mounted on the rotating shafts 92. Flexible sleeves 94 are mounted on the rolling wheels 93. The arc-shaped end frame 91 is connected to a sliding rod 74, and the threaded rod 73 is rotatably connected to the arc-shaped end frame 91.

[0051] The flexible sleeve 94 can be a rubber sleeve with anti-slip texture, so that the rolling wheel 93 provides flexible protection when it rotates and is squeezed on the surface of the pole, thus avoiding damage to the pole.

[0052] The trigger element 835 includes a sliding shell 8351, which is installed at the bottom of the force transmission rod 833. A contact rod 8352 is slidably installed inside the sliding shell 8351, and a second elastic element 8353 is installed between the contact rod 8352 and the sliding shell 8351.

[0053] The first elastic element 834 and the second elastic element 8353 are springs. When the trigger 835 presses the feedback element 836, the contact rod 8352 first abuts against the feedback element 836. As the sliding shell 8351 continues to advance, the contact rod 8352 retracts relative to the sliding shell 8351 under the reaction force of the feedback element 836, and the second elastic element 8353 is compressed. The greater the extension of the trigger 835, the greater the reverse pressure on the contact rod 8352, the greater its retraction relative to the sliding shell 8351, and the greater the compression of the second elastic element 8353.

[0054] When the detection tooth 83 compacts the soil layer along with the compaction roller 8, if the soil layer is relatively compacted, the detection tooth 83 experiences greater reverse resistance after embedding in the soil. Under pressure, the liner plate 832 compresses the first elastic element 834 via the force transmission rod 833, causing the first elastic element 834 to compress significantly and causing the trigger element 835 to extend further toward the feedback element 836. The pressure exerted by the trigger element 835 on the feedback element 836 is stronger, resulting in a stronger electrical signal from the feedback element 836. Conversely, if the soil layer is relatively loose, the reverse resistance experienced by the detection tooth 83 when embedding in the soil is smaller. The pressure exerted by the liner plate 832 on the first elastic element 834 via the force transmission rod 833 is weaker, resulting in less compression of the first elastic element 834. Consequently, the extension distance of the trigger element 835 toward the feedback element 836 is shorter, the pressure on the feedback element 836 is lower, and the generated electrical signal strength is also weaker.

[0055] The control system identifies and judges the compaction degree of the soil layer based on the strength of the received electrical signal, thereby realizing real-time detection of the compaction degree of the soil layer.

[0056] A first front sheath 76 and a second front sheath 78 are respectively installed between the sliding round seat 75 and the arc-shaped end frame 91. A first rear sheath 77 and a second rear sheath 79 are respectively installed between the sliding round seat 75 and the connector 71. The threaded rod 73 passes through the first front sheath 76 and the first rear sheath 77 respectively. The sliding rod 74 passes through the second front sheath 78 and the second rear sheath 79 respectively.

[0057] The first front sheath 76, the second front sheath 78, the first rear sheath 77, and the second rear sheath 79 are all made of elastic and stretchable material. They can expand and contract with the change of the distance between the sliding round seat 75 and the arc-shaped end frame 91 and the connecting piece 71. The sheaths are used to block soil.

[0058] A method for installing utility poles for overhead power line projects includes the following steps: S1. The rotating seat 12 drives the drilling assembly 2 to rotate above the adjustment drive disk 4 through the rotating bracket 1. The second telescopic component 22 is used to adjust the position of the driver 23 and the drill bit 24 so that the center of the drill bit 24 is aligned with the center point of the pole. The driver 23 and the first slider 21 are turned on. The driver 23 drives the drill bit 24 to rotate, and the first slider 21 drives the rotating drill bit 24 to drill a hole downward. S2. Using the hoisting device, insert the lower part of the pole into the pit. The second slider 36 drives the centering flexible fastener 3 to descend. The hoisting device adjusts the position of the upper part of the pole so that the descending fixing ring 32 is fitted onto the upper part of the pole. Remove the hoisting device to complete the pole erection and preliminary centering positioning. S3. Filling medium into expansion chamber 34 using filling device, causing annular bladder 33 to expand and circumferentially wrap around pole, completing precise centering and positioning of the upper part of pole; through several first telescopic members 6 synchronously driving dynamic centering end 9 to squeeze the lower part of pole, so that the lower part of pole is aligned with the center point of column under circumferential compression, completing precise centering and positioning of the entire pole. S4. Using the adjusting drive disk 4 to drive several centering compaction components 5 to compact the backfill soil, the compaction degree of the soil layer is detected by the detection teeth 83. According to the compaction degree, the centering compaction components 5 are used to perform multi-stage progressive compaction of the backfill soil to complete the backfilling.

[0059] The working principle of this invention is as follows: During operation, the entire device is first positioned at the center point of the upright, ensuring that the center point is located at the exact center of the adjusting drive disk 4. After the setup is complete, the control system first activates the rotating seat 12, which drives the rotating support 1 to rotate. The rotating support 1 then drives the drilling assembly 2 to rotate above the adjusting drive disk 4. Subsequently, the second telescopic component 22 is used to adjust the positions of the driver 23 and the drill bit 24, aligning the center of the drill bit 24 vertically with the center point of the upright. The control system then activates the driver 23 and the first slider 21. The driver 23 drives the drill bit 24 to rotate, and the first slider 21 drives the rotating drill bit 24 to drill downwards through the soil. Because the drill bit 24 uses a spiral structure, some soil is expelled during drilling. Once the preset depth is reached, the control system shuts off the drill bit 24 and pulls it back using the first slider 21. When the drill bit 24 is pulled back, it carries out another portion of soil. The soil expelled during drilling and the soil carried out during pulling are dispersed around the pit, thus completing the pit construction.

[0060] After drilling is completed, the control system restarts the rotating seat 12. The rotating seat 12 drives the drilling assembly 2 on the sliding column 13 to rotate away, causing the flexible fastener 3 on the other side to rotate above the adjusting drive disk 4. The control system then activates the third telescopic component 31, which drives the flexible fastener 3 to extend and retract, aligning the center point of the flexible fastener 3 with the center point of the pole. Subsequently, the hoisting device is used to hoist the pole to the vicinity of the pit, inserting the lower part of the pole into the pit. Then, the second slider 36 drives the flexible fastener 3 to descend. The hoisting device adjusts the position of the pole above, so that the descending fixing ring 32 is fitted onto the upper part of the pole. The hoisting device is then removed. At this point, the fixing ring 32 and the pit cooperate to form the initial centering and positioning of the pole.

[0061] After initial alignment and positioning, the control system activates the filling device, which fills the expansion chamber 34 with a filling medium. This medium then enters the annular bladder 33, causing it to expand and wrap around the pole. The upper part of the pole, subjected to uniform pressure from all sides towards the center, begins to move towards the pole's center point, thus achieving precise alignment and positioning of the upper part. Subsequently, the control system simultaneously activates several first telescopic components 6. The output shafts of these components, via adjusting rods, drive the dynamic alignment end 9 towards the lower part of the pole. The rolling wheels 93 on the dynamic alignment end 9 abut against the pole through flexible sleeves 94. These dynamic alignment end 9s then circumferentially compress the lower part of the pole, aligning it towards the pole's center point under uniform pressure, thus achieving precise alignment and positioning of the lower part. Ultimately, precise alignment and positioning of the entire pole is achieved.

[0062] After the pole is accurately aligned and positioned, the control system activates the electric turntable 42. The electric turntable 42 drives several alignment and compaction components 5 to rotate around the pole. The rolling wheel 93 on the dynamic alignment end 9 rotates around the pole while using the rolling friction between the flexible sleeve 94 and the pole to generate its own rotation. This achieves continuous compression of the lower part of the pole while rotating, thus achieving the purpose of dynamically straightening the pole during the compaction of the soil layer and avoiding secondary displacement of the pole when the backfill soil is compressed and migrated.

[0063] While the compaction component 5 rotates, the compaction roller 8 on it revolves synchronously. The compaction roller 8 generates friction by biting the soil layer through its teeth 82, thereby causing the compaction roller 8 to rotate around the sliding seat 75. While rotating, the compaction roller 8 squeezes and compacts the soil scattered around the pit. Since the compaction roller 8 adopts a frustum design, the area with a larger diameter generates a larger squeezing force on the soil layer, and the area with a smaller diameter generates a smaller squeezing force on the soil layer. Under the action of pressure difference, the soil with greater pressure will be pushed to the area with less pressure. That is, the soil will migrate from the area with a larger diameter of the compaction roller 8 to the area with a smaller diameter under the squeezing action. Under the combined action of several compaction rollers 8, the soil edge is compacted and gathers from all sides towards the pole. At the same time, the control system starts the motor 72, and the output shaft of the motor 72 drives the threaded rod 73 to rotate slowly. According to the principle of screw and slider, the threaded rod 73 drives the sliding round seat 75 to slide along the sliding rod 74 towards the pole through the thread. The sliding round seat 75 drives the compaction roller 8 on it to gradually approach the pole. The compaction roller 8 compacts the soil while gathering the soil towards the pole.

[0064] When the compaction roller 8 approaches the base of the pole, its groove 84 covers the dynamic centering end 9 and prevents the area close to the pole from becoming a roller compaction blind zone due to the obstruction of the dynamic centering end 9, which would cause the pole to loosen and shift. This achieves full coverage of the soil layer around the pole with compaction.

[0065] After the compaction roller 8 completes the first compaction, the control system activates the lifting base 41. The lifting base 41 drives several centering compaction components 5 to rise as a whole via the electric turntable 42, causing the compaction roller 8 to detach from the compacted soil layer. Subsequently, the control system controls the first telescopic component 6 to retract and drives the sliding round seat 75 in the opposite direction via the motor 72, so that the compaction roller 8 returns to the initial compaction position.

[0066] After resetting, the lifting base 41 again lowers the electric turntable 42 and the centering compaction component 5, bringing the compaction roller 8 to a working height lower than the first compaction. At this time, the compaction roller 8 applies greater downward pressure to the soil layer, and the control system restarts the centering compaction component 5 to perform a higher level of compaction on the backfill. During the compaction process, the detection teeth 83 continuously collect data on the soil reaction force and feed the corresponding signals back to the control system. The control system judges the soil compaction degree in real time based on the feedback data; when the detection results show that the overall compaction degree meets the preset requirements, the control system stops the operation. This achieves multi-stage progressive compaction of the backfill around the pole, ensuring that the backfill is uniformly compacted and avoiding localized insufficient compaction.

[0067] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pole installation device for overhead power line projects, characterized in that: The installation device includes a rotating bracket (1), a flexible fastener (3) and several centering and compaction components (5). A drilling component (2) is slidably installed on the rotating bracket (1), and an adjustment drive disk (4) is installed on one side of the rotating bracket (1). The centering and compaction assembly (5) includes a first telescopic component (6), a plurality of the first telescopic components (6) are circumferentially mounted on the adjustment drive disk (4), an adjustment rod (7) is mounted on the output shaft of the first telescopic component (6), a compaction roller (8) is rotatably mounted on the adjustment rod (7), a dynamic centering end head (9) is mounted on one end of the adjustment rod (7), and a plurality of detection teeth (83) are mounted on the compaction roller (8). The flexible fastener (3) includes a third telescopic member (31), which is slidably mounted on the rotating bracket (1). A fixing ring (32) is mounted on the output shaft of the third telescopic member (31), and a plurality of annular bladders (33) are mounted on the fixing ring (32). A filling device is connected to the fixing ring (32) through a pipe.

2. The pole installation device for overhead line engineering according to claim 1, characterized in that: The tamping roller (8) has a slope (81) cross section, and is provided with a number of teeth (82), a number of detection teeth (83), and a groove (84). The detection tooth (83) includes an elastic sleeve (831) and a liner (832). The elastic sleeve (831) is installed between the teeth (82). The liner (832) is close to the elastic sleeve (831). A force transmission rod (833) is installed on the liner (832). The force transmission rod (833) is slidably connected to the compaction roller (8). A first elastic element (834) is installed between the force transmission rod (833) and the compaction roller (8). A trigger element (835) is installed on the force transmission rod (833). A protective plate (837) is installed inside the compaction roller (8). A feedback element (836) is installed between the protective plates (837).

3. The pole installation device for overhead line engineering according to claim 2, characterized in that: The adjusting rod (7) includes a connector (71), which is mounted on the output shaft of the first telescopic member (6). A slide rod (74) is mounted on the connector (71). A dynamic centering end (9) is mounted on one end of the slide rod (74). A threaded rod (73) is rotatably mounted between the dynamic centering end (9) and the connector (71). A sliding round seat (75) is slidably mounted on the slide rod (74). The sliding round seat (75) is threadedly connected to the threaded rod (73). A compaction roller (8) is rotatably mounted on the sliding round seat (75). A motor (72) is mounted on the connector (71). The output shaft of the motor (72) passes through the connector (71) and is connected to the threaded rod (73).

4. The pole installation device for overhead line engineering according to claim 3, characterized in that: The dynamic centering end (9) includes an arc-shaped end frame (91), on which a plurality of rotating shafts (92) are mounted, and on which rolling wheels (93) are rotatably mounted, and on which flexible sleeves (94) are mounted, the arc-shaped end frame (91) is connected to a sliding rod (74), and the threaded rod (73) is rotatably connected to the arc-shaped end frame (91).

5. The pole installation device for overhead line engineering according to claim 2, characterized in that: The trigger (835) includes a sliding shell (8351), which is installed at the bottom of the force transmission rod (833). A contact rod (8352) is slidably installed inside the sliding shell (8351), and a second elastic element (8353) is installed between the contact rod (8352) and the sliding shell (8351).

6. The pole installation device for overhead line engineering according to claim 4, characterized in that: A first front sleeve (76) and a second front sleeve (78) are respectively installed between the sliding round seat (75) and the arc-shaped end frame (91). A first rear sleeve (77) and a second rear sleeve (79) are respectively installed between the sliding round seat (75) and the connector (71). The threaded rod (73) passes through the first front sleeve (76) and the first rear sleeve (77) respectively. The sliding rod (74) passes through the second front sleeve (78) and the second rear sleeve (79) respectively.

7. The pole installation device for overhead line engineering according to claim 1, characterized in that: An expansion chamber (34) is provided inside the fixed ring (32). The expansion chamber (34) is connected to the inside of the annular bladder (33). An air inlet (35) is provided on one side of the expansion chamber (34). The air inlet (35) is connected to the filling device through a pipe.

8. The pole installation device for overhead line engineering according to claim 1, characterized in that: The adjustment drive disc (4) includes a lifting base (41), an electric turntable (42) is installed on the lifting base (41), and a plurality of first telescopic components (6) are circumferentially installed at the bottom end of the electric turntable (42). The rotating bracket (1) includes a fixed platform (11), a rotating seat (12) is mounted on the fixed platform (11), a sliding column (13) is mounted on the rotating seat (12), a drilling assembly (2) is slidably mounted on one side of the sliding column (13), a second slider (36) is slidably mounted on the other side of the sliding column (13), and a third telescopic member (31) is mounted on the second slider (36).

9. A pole installation device for overhead line engineering according to claim 8, characterized in that: The drilling assembly (2) includes a first slider (21) which is slidably mounted on a sliding column (13). A second telescopic member (22) is mounted on the first slider (21), and a driver (23) is mounted on the second telescopic member (22). A drill bit (24) is mounted on the output shaft of the driver (23).

10. A method for installing utility poles for overhead power line projects, characterized in that: Using the pole installation device for overhead line engineering as described in any one of claims 1-9, the pole installation method includes the following steps: S1. The rotating seat (12) drives the drilling assembly (2) to rotate above the adjusting drive disk (4) through the rotating bracket (1). The second telescopic component (22) is used to adjust the position of the driver (23) and the drill bit (24) so ​​that the center of the drill bit (24) is aligned with the center point of the pole. The driver (23) and the first slider (21) are turned on. The driver (23) drives the drill bit (24) to rotate, and the first slider (21) drives the rotating drill bit (24) to drill a hole downward. S2. Using the hoisting device, insert the lower part of the pole into the pit. The second slider (36) drives the centering flexible fastener (3) to descend. The hoisting device adjusts the position of the upper part of the pole so that the descending fixing ring (32) is fitted on the upper part of the pole. Remove the hoisting device to complete the pole erection and preliminary centering positioning. S3. Fill the expansion chamber (34) with filling medium using the filling device, so that the annular bladder (33) expands and wraps around the pole in a circumferential manner, thus completing the precise centering and positioning of the upper part of the pole; through several first telescopic components (6) synchronously driving the dynamic centering end (9) to squeeze the lower part of the pole, so that the lower part of the pole is aligned with the center point of the column under circumferential compression, thus completing the precise centering and positioning of the entire pole. S4. Using the adjustment drive disk (4), drive several centering compaction components (5) to compact the backfill soil. Use the detection teeth (83) to detect the compaction degree of the soil layer. Based on the compaction degree, use the centering compaction components (5) to perform multi-level progressive compaction of the backfill soil to complete the backfilling.

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