Assembly type concrete electric pole nondestructive reinforcement device and reinforcement method

Abstract

The application provides an assembled concrete electric pole nondestructive reinforcement device and a reinforcement method, relates to the technical field of concrete electric pole damage reinforcement, and comprises a pole climbing mechanism, a setting-on electric pole and capable of ascending and descending movement, a fixed upper platform and a movable lower platform, the fixed upper platform and the movable lower platform are respectively provided with U-shaped avoidance grooves for the electric pole to pass through, a pole holding mechanism, respectively setting on the fixed upper platform and the movable lower platform, a reinforcement mechanism, installed on the fixed upper platform, and capable of forming a nondestructive outer wrapping reinforcement layer on the outer periphery of the electric pole by pouring steel fiber mixed concrete into the pouring cavity and solidifying. The pole climbing mechanism is used for realizing reinforcement of the electric pole at any height, the pouring steel fiber concrete is used for forming the outer wrapping reinforcement layer, the bending bearing capacity is fundamentally improved, and the clamping force is not relied on. The device can be repeatedly used, manual pole climbing is not needed, the reinforcement cost is obviously reduced, and the device is suitable for batch nondestructive reinforcement of the electric poles of the power distribution network.

Description

Technical Field

[0001] This invention relates to the field of concrete pole damage reinforcement technology, specifically to a prefabricated concrete pole non-destructive reinforcement device and reinforcement method. Background Technology

[0002] The existing technology, disclosed in publication number "CN215717495U", describes a reinforcement device for damaged steel plate rings on concrete utility poles. This device addresses the problem that common steel plate ring reinforcement devices often only reinforce the steel plate ring itself, neglecting the protection of the surrounding concrete. Simply using clamping devices to reinforce the steel plate ring can inadvertently accelerate the shedding of the concrete near the steel plate ring, significantly reducing the lifespan of the concrete pole. The device utilizes a first reinforcement plate fixedly connected to the sleeve on one side of the inner wall of the sleeve, with an anti-slip cone fixedly connected to its inner wall. A second reinforcement plate fixedly connected to the sleeve is located on the other side of the inner wall of the sleeve. A first connecting plate is fixedly connected to the first reinforcement plate on one side of the first reinforcement plate, and a second connecting plate is fixedly connected to the second reinforcement plate on one side of the second reinforcement plate.

[0003] However, the aforementioned device still has significant drawbacks in its use: 1. The device can only provide localized reinforcement to the steel plate ring, and cannot reinforce cracks, damage, or segmented connection nodes of assembled poles at any height. The reinforcement location is limited to the area where the steel plate ring is located, making its applicability extremely limited; 2. The device uses a rigid clamping method with a reinforcing plate and anti-slip cones, achieving reinforcement by clamping the steel plate ring of the pole with a sleeve. This contact clamping method is essentially still a type of mechanical clamping reinforcement, and its reinforcement effect depends on the magnitude of the clamping force, failing to fundamentally improve the bending load-bearing capacity of the pole section and the overall structural strength; 3. During installation, the device... 1. The sleeve needs to be fitted onto the outside of the steel plate ring of the pole. The installation process inevitably involves manual pole climbing, which poses safety hazards due to working at height and cannot achieve automated or unmanned reinforcement construction; 2. The device only forms point contact with the steel plate ring through the anti-slip cone. There is no effective bonding and integrated connection between the reinforcement plate and the concrete body of the pole. It cannot solve the problem of coordinated stress at the interface between the old and new structures, and the integrity and durability of the reinforcement layer cannot be guaranteed; 3. After the reinforcement is completed, the sleeve and reinforcement plate remain on the pole as permanent external components. This not only increases the permanent load on the pole, but also exposes the external metal components to the outdoor environment for a long time, which poses a risk of corrosion and results in high maintenance costs. Summary of the Invention

[0004] The purpose of this invention is to provide a non-destructive reinforcement device and method for prefabricated concrete poles to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A prefabricated non-destructive reinforcement device for concrete utility poles includes: The pole climbing mechanism, which is installed on the utility pole and can move up and down along it, includes a fixed upper platform and a movable lower platform. The fixed upper platform and the movable lower platform are respectively provided with U-shaped clearance grooves through which the utility pole passes. The four corners of the fixed upper platform are fixed with sliding rods. The movable lower platform is provided with sliding sleeves that slide with the sliding rods. A lifting traction mechanism is connected between the fixed upper platform and the movable lower platform to drive the movable lower platform to move up and down along the sliding rods. The pole-holding mechanism is respectively set on the fixed upper platform and the movable lower platform, including a fixed pole-holding pad and a movable pole-holding pad. The movable pole-holding pad is driven by a clamping mechanism and opens and closes relative to the fixed pole-holding pad to realize the pole-holding or pole-releasing action. The reinforcement mechanism, installed on a fixed upper platform, includes a fixed enclosure and a movable enclosure, which together form a casting cavity located on the outer periphery of the pole. By pouring steel fiber mixed concrete into the casting cavity, a non-destructive outer reinforcement layer is formed on the outer periphery of the pole after curing.

[0006] Preferably, the end of the slide bar furthest from the fixed upper platform is fixedly connected to the protective base plate.

[0007] Preferably, the lifting traction mechanism includes lifting links and telescopic cylinders. The lifting traction mechanism is provided in pairs and symmetrically distributed on both sides of the U-shaped clearance groove. Each set of lifting traction mechanisms includes four lifting links. The lifting links are hinged to the opposite side of the fixed upper platform and the movable lower platform. The end of the lifting link away from the fixed upper platform or the movable lower platform is respectively hinged to the fixed end or the movable end of the telescopic cylinder. The telescopic movement of the telescopic cylinder drives the movable lower platform to move up and down.

[0008] Preferably, the fixed pole support block is fixedly installed on the fixed upper platform and the movable lower platform, the movable pole support block is fixedly installed on the actuator arm, the actuator arm is fixedly and rotatably installed on the fixed upper platform and the movable lower platform, the actuator arm is also hinged to the linkage mechanism, the clamping mechanism is an electric telescopic cylinder, the electric telescopic cylinder is installed on the fixed upper platform and the movable lower platform, and the telescopic end of the electric telescopic cylinder is hinged to the linkage mechanism, so that the telescopic movement of the electric telescopic cylinder drives the movable pole support block to open and close.

[0009] Preferably, the fixed fence is fixedly installed on a fixed platform, and one side of the bottom of the fixed fence is connected to a concrete pumping pipe, which is connected to a concrete pump installed on the ground. The movable fence is fixedly installed on a detachable insert plate, which is provided with a semi-circular mating groove that cooperates with the U-shaped clearance groove. The U-shaped clearance groove and the semi-circular mating groove define the enclosure channel for inserting the power pole. Each side of the enclosure channel is provided with a sealing airbag, which fills and seals the gap between the enclosure channel and the power pole by expanding the sealing airbag.

[0010] Preferably, a push plate is also fixedly installed on the detachable insert plate. The push plate has threaded openings on both sides, and a threaded rod is inserted into the threaded opening. The threaded rod is fixedly connected to the drive shaft of the telescopic drive motor. The telescopic drive motor is fixedly installed on the fixed upper platform. The rotational movement of the telescopic drive motor pushes the detachable insert plate to slide horizontally.

[0011] Preferably, a bidirectional air pump is fixedly installed on one side of the push plate. Both the push plate and the detachable insert plate have a front air passage that communicates with the bidirectional air pump, and the fixed upper platform has a corresponding rear air passage. When the push plate and the fixed upper platform abut against each other, the front air passage and the rear air passage are connected. The front air passage and the rear air passage are respectively connected to the sealing airbag on the same side. The bidirectional air pump pumps air into or vents air into the sealing airbag, thereby causing the sealing airbag to expand or contract.

[0012] Preferably, a telescopic cylinder is also fixedly installed on one side of the push plate. The upper end of the telescopic arm of the telescopic cylinder is rotatably connected to a deflection mounting plate. A deflection motor that drives its own deflection is installed on the deflection mounting plate. A vibration motor is also fixedly installed at one end of the deflection mounting plate. The vibration rod of the vibration motor is movably set inside the casting cavity.

[0013] Preferably, an arc-shaped slide rail is fixedly installed on the upper surface of the movable lower platform, and an arc-shaped movable block is movably installed on the arc-shaped slide rail. The arc-shaped movable block moves in an arc shape around the arc-shaped slide rail under the drive of the built-in motor. A pneumatic impact drill is fixedly installed on the upper part of the arc-shaped movable block. The pneumatic impact drill's pneumatic punch faces the rod body. The pneumatic impact drill is connected to an air pump installed on the ground through an air supply pipe. By supplying air to the pneumatic impact drill, the pneumatic drill bit is pushed to perform roughening operations on the outer periphery of the rod body.

[0014] A reinforcement method, employing the aforementioned prefabricated concrete pole non-destructive reinforcement device, includes the following steps: Step 1: Install the fixed upper platform and the movable lower platform along the U-shaped clearance groove at the bottom of the pole, and enable the pole clamping mechanism to clamp and hold the pole. Step 2: Install the detachable insert plate onto one side of the fixed upper platform so that the threaded rod mates with the threaded opening on the push plate; Step 3: The control device is used to climb the pole until the pouring cavity is outside the pole that needs to be reinforced; Step 4: Pour steel fiber-reinforced concrete into the casting cavity. After the concrete has cured, remove the entire device from the pole.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This application achieves the self-lifting of the device on the pole through the climbing mechanism, which can move the reinforcement mechanism to any height position of the pole to reinforce the crack, and implement reinforcement in the damaged area or at the segment connection node of the prefabricated pole. This breaks through the limitation of the existing technology that can only perform local reinforcement on the steel plate ring, and greatly expands the scope of application, especially suitable for batch reinforcement of segment nodes of prefabricated concrete poles. 2. This application forms an outer reinforcement layer on the outside of the pole by pouring steel fiber reinforced concrete into the enclosed casting cavity, which is tightly bonded to the pole body. This fundamentally increases the cross-sectional size and bending bearing capacity of the pole. Unlike the existing technology that relies solely on clamping force to provide reinforcement through mechanical clamping, this application achieves true structural reinforcement. 3. After reinforcement, the device in this application removes all mechanical parts such as the enclosure and climbing mechanism from the pole, leaving only the cured concrete reinforcement layer. There is no need to leave any permanent metal components on the pole. The device can be repeatedly used for reinforcement of different poles. Each reinforcement only consumes concrete material, which significantly reduces the reinforcement cost of a single pole. Moreover, the installation and climbing process of the device does not require manual pole climbing, which fundamentally eliminates the safety hazards of working at height. It is especially suitable for low-cost, batch, unmanned and non-destructive reinforcement of a large number of poles in the power distribution network. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the concrete pumping pipeline installation structure of the present invention; Figure 3 This is a schematic diagram of the installation structure of the pneumatic impact drill of the present invention; Figure 4 This is a schematic diagram of the bidirectional air pump connection state of the present invention; Figure 5 This is a schematic diagram of the enclosed forming state of the casting cavity of the present invention; Figure 6 This is a schematic diagram of the movable pole support block connection structure of the present invention; Figure 7 This is a cross-sectional schematic diagram of the fixed enclosure installation structure of the present invention; Figure 8 This is a cross-sectional schematic diagram of the movable enclosure installation structure of the present invention.

[0017] In the diagram: 1 Fixed upper platform, 2 Movable lower platform, 3 U-shaped clearance groove, 4 Sliding rod, 5 Sliding sleeve, 6 Fixed pole pad, 7 Movable pole pad, 8 Fixed enclosure, 9 Movable enclosure, 10 Pouring cavity, 11 Protective base plate, 12 Lifting linkage, 13 Telescopic cylinder, 14 Action arm, 15 Linkage mechanism, 16 Electric telescopic cylinder, 17 Concrete pumping pipeline, 18 Detachable insert plate, 19 Semi-circular mating groove, 20 Sealing airbag, 21 Push plate, 22 Threaded rod, 23 Telescopic drive motor, 24 Two-way air pump, 25 Front air duct, 26 Rear air duct, 27 Telescopic cylinder, 28 Deflection mounting plate, 29 Vibration motor, 30 Vibration rod, 31 Arc-shaped slide rail, 32 Arc-shaped movable block, 33 Pneumatic impact drill, 34 Air supply pipe. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1 to 8 This invention provides a prefabricated non-destructive reinforcement device for concrete utility poles, mainly comprising three functional modules: a pole climbing mechanism, a pole holding mechanism, and a reinforcement mechanism. The pole climbing mechanism drives the entire device to move up and down along the utility pole. The pole holding mechanism temporarily fixes the device to the pole during the climbing process and pouring operation. The reinforcement mechanism forms a pouring cavity 10 on the outer periphery of the utility pole and pours steel fiber reinforced concrete into the cavity, thereby forming an outer reinforcement layer after curing. The structure of each part is described in detail below: I. Pole Climbing Mechanism The pole climbing mechanism is mounted on the utility pole and can move up and down along it. It includes a fixed upper platform 1 and a movable lower platform 2. Both the fixed upper platform 1 and the movable lower platform 2 are plate-shaped components, arranged parallel to each other and coaxially. The fixed upper platform 1 and the movable lower platform 2 each have a U-shaped clearance groove 3 through which the utility pole passes. The openings of the U-shaped clearance grooves 3 are aligned, facing the same side of the platform, to facilitate the installation of the device from the side of the utility pole. Slide rods 4 are fixed at the four corners of the fixed upper platform 1. Each slide rod 4 is a cylindrical guide rod arranged in a rectangular array. The upper end of each slide rod 4 is aligned with the lower surface of the fixed upper platform 1. The fixed upper platform 1 and the movable lower platform 2 are connected by a sliding sleeve 5 that slides with the sliding rod 4. The sliding sleeve 5 is a cylindrical component with its inner diameter and the outer diameter of the sliding rod 4 forming a clearance fit. Each sliding sleeve 5 is fitted onto the outer circumference of each sliding rod 4, so that the movable lower platform 2 can slide freely along the axial direction of the sliding rod 4. A lifting and traction mechanism is connected between the fixed upper platform 1 and the movable lower platform 2 to drive the movable lower platform 2 to rise and fall along the sliding rod 4. Under the action of the telescopic driving force, the lifting and traction mechanism can drive the movable lower platform 2 to move closer to or away from the fixed upper platform 1, thereby realizing the climbing or descending action of the device.

[0020] like Figure 2 As shown, the end of the slide rod 4 away from the fixed upper platform 1 is fixedly connected to the protective base plate 11. That is, the protective base plate 11 is fixedly installed at the lowest end of the four slide rods 4. The protective base plate 11 is a plate-shaped component. Its purpose is to connect the four slide rods 4 into one body to enhance the overall rigidity. On the other hand, it plays a buffering and limiting role when the device descends to the bottom of the pole to prevent the movable lower platform 2 from falling off the lower end of the slide rod 4.

[0021] The lifting and traction mechanism includes lifting links 12 and telescopic cylinders 13. A pair of lifting and traction mechanisms are symmetrically distributed on both sides of the U-shaped clearance groove 3. Each lifting and traction mechanism includes four lifting links 12, divided into two groups of two, arranged at the front and rear ends of that side. The lifting links 12 are hinged to the opposite side of the fixed upper platform 1 and the movable lower platform 2; that is, the upper end of the lifting link 12 is hinged to the lower surface of the fixed upper platform 1, and the lower end of the other group of lifting links 12 is hinged to the upper surface of the movable lower platform 2. The front and rear lifting links 12 on the same side are arranged in a crisscross pattern, forming a scissor-like structure. The end of the lifting link 12 away from the fixed upper platform 1 or the movable lower platform 2 is respectively hinged to the fixed end or the movable end of the telescopic cylinder 13. Specifically, the upper end of the lifting link 12 located on one side of the fixed upper platform 1 is hinged to the lower surface of the fixed upper platform 1, and its lower end is hinged to the fixed end of the telescopic cylinder 13; the lower end of the lifting link 12 located on one side of the movable lower platform 2 is hinged to the upper surface of the movable lower platform 2, and its upper end is hinged to the movable end of the telescopic cylinder 13. The telescopic cylinder 13 drives the movable lower platform 2 to move up and down through its extension and retraction. When the telescopic cylinder 13 extends, the lifting links 12 on both sides retract towards the middle, pushing the movable lower platform 2 to move along the slide bar 4 towards the fixed upper platform 1, thus achieving the upward movement. When the telescopic cylinder 13 retracts, the lifting links 12 on both sides extend outward, pushing the movable lower platform 2 to move along the slide bar 4 away from the fixed upper platform 1, thus achieving the downward movement.

[0022] II. Pole-holding mechanism The pole-holding mechanisms are respectively installed on the fixed upper platform 1 and the movable lower platform 2. That is, one pole-holding mechanism is installed on the fixed upper platform 1 and another on the movable lower platform 2. The two sets of pole-holding mechanisms are structurally identical and arranged correspondingly. Each set of pole-holding mechanisms includes a fixed pole-holding pad 6 and a movable pole-holding pad 7. The fixed pole-holding pad 6 is an arc-shaped block component, and its inner arc surface matches the shape of the outer circumference of the pole. The fixed pole-holding pad 6 is fixedly installed on one edge of the U-shaped clearance groove 3 of the fixed upper platform 1 or the movable lower platform 2. The movable pole-holding... The pad 7 is driven by a clamping mechanism and opens and closes relative to the fixed pole pad 6 to achieve pole clamping or releasing actions. The movable pole pad 7 is also an arc-shaped block component, and its inner arc surface is adapted to the shape of the outer circumference of the pole. The movable pole pad 7 is set on the other side edge of the U-shaped clearance groove 3 and is arranged opposite to the fixed pole pad 6. When the movable pole pad 7 moves closer to the fixed pole pad 6, the two clamp the pole from both sides; when the movable pole pad 7 opens away from the fixed pole pad 6, the two release the clamping of the pole.

[0023] Fixed pole support blocks 6 are fixedly installed on the fixed upper platform 1 and the movable lower platform 2. Specifically, the fixed pole support blocks 6 are fixed to one side of the U-shaped clearance groove 3 on the upper surface of the platform by bolts. Movable pole support blocks 7 are fixedly installed on the actuator arm 14. The actuator arm 14 is a long strip-shaped component. The movable pole support blocks 7 are fixed to the end of the actuator arm 14 facing the pole by bolts. The actuator arm 14 is rotatably installed on the fixed upper platform 1 and the movable lower platform 2 with a fixed axis. That is, the middle part of the actuator arm 14 is rotatably connected to the upper surface of the platform through a hinge axis. The actuator arm 14 can swing around the hinge axis in the horizontal plane. The actuator arm 14 is also hinged to the linkage mechanism 15. The linkage mechanism 15 consists of a set of mutually hinged links. One end of the linkage mechanism 15 is hinged to the end of the actuator arm 14 away from the movable pole support blocks 7, and the other end is hinged to the telescopic end of the electric telescopic cylinder 16. The clamping mechanism is an electric telescopic cylinder. 16. The electric telescopic cylinder 16 is installed on the fixed upper platform 1 and the movable lower platform 2. Specifically, the cylinder body of the electric telescopic cylinder 16 is fixed to the platform through the mounting base. The telescopic end of the electric telescopic cylinder 16 is hinged to the linkage mechanism 15. The telescopic movement of the electric telescopic cylinder 16 drives the movable pole-holding pad 7 to open and close. When the electric telescopic cylinder 16 extends, it pushes the action arm 14 to rotate around the hinge axis through the linkage mechanism 15, so that the movable pole-holding pad 7 moves towards the pole to achieve a tight grip. When the electric telescopic cylinder 16 retracts, it pulls the action arm 14 to rotate in the opposite direction through the linkage mechanism 15, so that the movable pole-holding pad 7 moves away from the pole to achieve a release. Through the alternating cooperation of the two sets of pole-holding mechanisms set on the fixed upper platform 1 and the movable lower platform 2, the temporary positioning of the device is achieved. With the setting of the pole climbing mechanism, the lifting and lowering movement of the device on the pole is finally realized.

[0024] III. Reinforcement Mechanism The reinforcement mechanism is installed on the fixed upper platform 1, which includes a fixed enclosure 8 and a movable enclosure 9. The fixed enclosure 8 is an arc-shaped enclosure structure, and its overall shape is semi-circular. The lower end of the fixed enclosure 8 is fixedly installed on the upper surface of the fixed upper platform 1. The fixed enclosure 8 extends along the circumference of the pole and surrounds a part of the outer circumference of the pole. The movable enclosure 9 is also an arc-shaped enclosure structure, and its overall shape is semi-circular. The sum of the arc lengths of the fixed enclosure 8 and the movable enclosure 9 is greater than the entire circumference of the pole. The fixed enclosure 8 and the movable enclosure 9 are spliced ​​together on the outer circumference of the pole, and the two together form a casting cavity 10 located on the outer circumference of the pole for casting. Cavity 10 is an upward-opening annular cavity structure. Its inner wall maintains a certain radial distance from the outer circumference of the pole; this distance is the thickness of the outer reinforcement layer to be poured. Steel fiber-reinforced concrete is poured into cavity 10, filling the entire cavity and wrapping the outer circumference of the pole. After curing, a non-destructive outer reinforcement layer is formed on the pole's outer circumference. This outer reinforcement layer bondes to the pole's original concrete surface through an interface, forming a unified structure and achieving structural reinforcement of the pole. Compared to ordinary concrete, the uniformly distributed steel fibers in steel fiber-reinforced concrete can form a randomly distributed three-dimensional support network within the concrete matrix. When the outer reinforcement layer... When the reinforced layer is under stress, the steel fibers transmit stress across micro-cracks, effectively hindering further crack propagation. This transforms the inherent brittle failure of concrete into ductile failure with a certain degree of ductility. Experimental studies show that after adding an appropriate amount of steel fibers, the crack resistance of concrete is significantly improved, the crack width is significantly reduced, and the cracks exhibit a short, thin, and non-penetrating distribution. In terms of mechanical properties, the tensile strength of steel fiber reinforced concrete can be increased by 40%–80%, the flexural strength by 60%–120%, and the shear strength by 50%–100%. Its impact resistance can reach 3–4 times that of ordinary concrete, and its ultimate bearing capacity is significantly increased. Furthermore, steel fibers… Steel fiber can significantly improve the bonding performance between new and old concrete. With the increase of steel fiber content, the bond shear strength and splitting tensile strength of the steel fiber concrete interface with the original concrete gradually increase, effectively ensuring the coordinated stress and overall working performance of the outer reinforcement layer and the original pole. Therefore, using steel fiber-mixed concrete to cast the outer reinforcement layer not only improves the load-bearing capacity of the pole from the perspective of increasing the cross-section, but also endows the reinforcement layer with excellent crack resistance, toughening and interfacial bonding performance from the material level. This enables the reinforced pole to have good crack closure and deformation recovery capabilities during long-term service, significantly extending the service life of the pole.

[0025] like Figure 3As shown, the fixed enclosure 8 is fixedly installed on the fixed upper platform 1. The bottom side of the fixed enclosure 8 is connected to the concrete pumping pipe 17. Specifically, a grouting port is opened at the bottom of the fixed enclosure 8 near the pole. One end of the concrete pumping pipe 17 is sealed to the grouting port. The concrete pumping pipe 17 is connected to the concrete pump installed on the ground. The ground concrete pump pump pressurizes the steel fiber mixed concrete through the pipe and pumps it to the bottom of the fixed enclosure 8, so that the concrete gradually fills from the bottom of the pouring cavity 10 upwards to ensure that the pouring is dense.

[0026] The movable enclosure 9 is fixedly installed on the detachable insert plate 18. The detachable insert plate 18 is a flat plate component that can be detachably connected to the fixed upper platform 1. The detachable insert plate 18 is provided with a semi-circular mating groove 19 that mates with the U-shaped clearance groove 3. The opening direction of the semi-circular mating groove 19 is consistent with the opening direction of the U-shaped clearance groove 3, and their arc diameters are the same. The U-shaped clearance groove 3 and the semi-circular mating groove 19 define the enclosed channel for the power pole insertion. That is, the power pole passes through the circular channel formed by the U-shaped clearance groove 3 and the semi-circular mating groove 19. The diameter of the enclosed channel is approximately... Larger than the outer diameter of the pole, sealing airbags 20 are installed on the inner side of the enclosed channel. The sealing airbags 20 are strip-shaped inflatable rubber bags, which are continuously arranged along the inner wall of the enclosed channel. When the sealing airbags 20 are not inflated, there is a gap between them and the outer surface of the pole to allow the device to move up and down along the pole. The expansion of the sealing airbags 20 fills and seals the gap between the enclosed channel and the pole. After the sealing airbags 20 are inflated, they fit tightly against the outer circumference of the pole to prevent the concrete in the pouring cavity 10 from leaking down the surface of the pole, while maintaining the sealing of the bottom of the pouring cavity 10 during the pouring process.

[0027] A push plate 21 is also fixedly installed on the detachable insert plate 18. The push plate 21 is a flat plate component, which is arranged parallel to the detachable insert plate 18 and the two are fixedly connected by a connecting post. The push plate 21 is located on the side of the detachable insert plate 18 away from the fixed upper platform 1. Threaded openings are provided on both sides of the push plate 21. The threaded openings are threaded through holes that penetrate the push plate 21. A threaded rod 22 is inserted into the threaded opening. The threaded rod 22 is an externally threaded rod that forms a threaded fit with the threaded opening. The threaded rod 22 is fixedly connected to the drive shaft of the telescopic drive motor 23. That is, one end of the threaded rod 22 is coaxially fixedly connected to the output shaft of the telescopic drive motor 23. The telescopic drive motor 23 is fixedly installed on the fixed upper platform 1. Specifically, the telescopic drive motor... The housing of the machine 23 is fixedly installed on the upper surface of the fixed upper platform 1 by the motor mount. The rotation of the telescopic drive motor 23 pushes the detachable insert plate 18 to slide horizontally. When the telescopic drive motor 23 rotates in the forward direction, the threaded rod 22 rotates synchronously. Through the thread engagement, the push plate 21 is pushed towards the fixed upper platform 1, which drives the detachable insert plate 18 and the movable enclosure 9 on it to move closer to the fixed enclosure 8 until the fixed enclosure 8 and the movable enclosure 9 are assembled to form a complete casting cavity 10. When the telescopic drive motor 23 rotates in the reverse direction, the push plate 21 drives the detachable insert plate 18 away from the fixed upper platform 1, so that the movable enclosure 9 is separated from the fixed enclosure 8, making it easy to remove the device from the pole.

[0028] A bidirectional air pump 24 is also fixedly installed on one side of the push plate 21. The bidirectional air pump 24 is a small air pump that can operate in both forward and reverse directions. It is fixed on the side of the push plate 21 away from the detachable insert plate 18. Both the push plate 21 and the detachable insert plate 18 have a front air passage 25 that communicates with the bidirectional air pump 24. The front air passage 25 is a ventilation channel opened inside the push plate 21 and the detachable insert plate 18. One end of it is connected to the air outlet of the bidirectional air pump 24, and the other end extends to the side of the detachable insert plate 18 facing the fixed upper platform 1. The fixed upper platform 1 has a corresponding rear air passage 26. The rear air passage 26 is a ventilation channel opened inside the fixed upper platform 1. One end of it extends to the side of the fixed upper platform 1 facing the push plate 21 and is opposite to the outlet of the front air passage 25. The other end extends to the installation position of the sealing airbag 20 inside the fixed upper platform 1. When the push plate 21 abuts against the fixed upper platform 1, the front air passage 25 and the rear air passage 26 are connected. That is, after the push plate 21 moves into place, the ports of the front air passage 25 and the rear air passage 26 are aligned and sealed together to form a complete airflow path. The front air passage 25 and the rear air passage 26 are respectively connected to the sealing airbag 20 on the same side. The bidirectional air pump 24 pumps air or exhausts air into the sealing airbag 20, thereby causing the sealing airbag 20 to expand or contract. Specifically, when the bidirectional air pump 24 pumps air in the forward direction, high-pressure gas enters the sealing airbag 20 through the front air passage 25 and the rear air passage 26, and the sealing airbag 20 expands to seal the gap. When the bidirectional air pump 24 pumps air in the reverse direction, the gas in the sealing airbag 20 is extracted, and the sealing airbag 20 contracts to release the blockage.

[0029] A telescopic cylinder 27 is also fixedly installed on one side of the push plate 21. The cylinder body of the telescopic cylinder 27 is fixedly installed on the side of the push plate 21 facing the detachable insert plate 18. A deflection mounting plate 28 is rotatably connected to the upper end of the telescopic arm of the telescopic cylinder 27. A deflection motor that drives its own deflection movement is installed on the deflection mounting plate 28. The deflection mounting plate 28 is an L-shaped or strip-shaped plate-like component, one end of which is movably connected to the end of the telescopic arm of the telescopic cylinder 27. A vibration motor 29 is fixedly installed on one end of the deflection mounting plate 28. The vibration motor 29 is a small high-frequency vibration motor. The vibrating rod 30 of the motor 29 is movably installed inside the pouring cavity 10. That is, the vibrating rod 30 extends out from the deflection mounting plate 28 and extends downward into the pouring cavity 10. When steel fiber mixed concrete is poured into the pouring cavity 10, the telescopic cylinder 27 drives the deflection mounting plate 28 to move, so that the vibrating rod 30 is inserted into the concrete. At the same time, the vibrating motor 29 starts to generate high-frequency vibration, and the vibration energy is transmitted to the concrete in the pouring cavity 10 through the vibrating rod 30, so that the concrete is vibrated and compacted during the pouring process, air bubbles in the concrete are eliminated, and the density and strength of the outer reinforcement layer are improved. After the work is completed, the deflection mounting plate 28 moves upward during the extension movement of the telescopic cylinder 27, thereby driving the vibrating rod 30 out of the concrete. The rotating mechanism then drives the deflection mounting plate 28 to deflect, thereby removing the vibrating rod 30 and the deflection mounting plate 28 from the upper part of the pouring cavity 10. This does not affect the subsequent separation of the entire device from the solidified concrete. It should be noted that the deflection motor installed on the deflection mounting plate 28 is not shown in the attached drawings of the instruction manual. It is driven by a motor commonly used in the prior art. The rotation of the motor drives the deflection mounting plate 28 to rotate around the drive arm of the telescopic cylinder 27 at a preset angle, thereby removing the deflection mounting plate 28 and the vibrating rod 30 from the upper part of the pouring cavity 10.

[0030] An arc-shaped slide rail 31 is fixedly installed on the upper surface of the movable lower platform 2. The arc-shaped slide rail 31 is a guide rail extending in a semi-circular arc shape. It is fixedly installed on the upper surface of the movable lower platform 2 and arranged around the outer perimeter of the pole. An arc-shaped movable block 32 is movably installed on the arc-shaped slide rail 31. The arc-shaped movable block 32 is an arc-shaped slider adapted to the arc-shaped slide rail 31. It can slide freely along the extension direction of the arc-shaped slide rail 31. Driven by the built-in motor, the arc-shaped movable block 32 moves in an arc shape around the arc-shaped slide rail 31. The device integrates a drive motor and wheels. Through frictional engagement between the wheels and the arc-shaped slide rail 31, the built-in motor drives the arc-shaped movable block 32 to reciprocate along the arc-shaped slide rail 31. A pneumatic impact drill 33 is fixedly mounted on the upper part of the arc-shaped movable block 32. The pneumatic impact drill 33 is an impact drill powered by compressed air, fixed to the upper surface of the arc-shaped movable block 32 by a mounting bracket. The pneumatic punch of the pneumatic impact drill 33 faces the pole body, meaning the axis of the pneumatic punch points towards the outer circumference of the pole. The pneumatic impact drill 33 is powered by a compressed air supply... The air pipe 34 is connected to an air pump installed on the ground. The air supply pipe 34 is a flexible hose, one end of which is connected to the air inlet of the pneumatic impact drill 33, and the other end extends down the pole to the ground and is connected to the air outlet of the ground air pump. By supplying air to the pneumatic impact drill 33, the pneumatic drill bit is driven to roughen the outer circumference of the pole. Driven by the air supply from the ground air pump, the pneumatic impact drill 33's pneumatic punch reciprocates to impact the outer circumference of the pole, forming dense pits and rough textures on the original concrete surface of the pole. The arc-shaped movable block 32 simultaneously drives the pneumatic punch... The drill bit 33 moves in an arc along the circumference of the pole to achieve uniform roughening of the entire circumference of the pole, increasing the bonding area and mechanical interlocking force between the new and old concrete interfaces, thereby effectively improving the interface bonding strength between the outer reinforcement layer and the original pole. Due to the influence of the path of the arc-shaped slide rail 31, when roughening is required, only half of the circumference can be roughened at a time. After the roughening of half of the circumference is completed, the device can lower the entire pole and adjust to the other half of the circumference, so as to climb the pole and continue the roughening of the other half of the circumference.

[0031] IV. Specific Implementation Methods of Reinforcement This invention also provides a method for non-destructive reinforcement of prefabricated concrete poles. This method uses the aforementioned non-destructive reinforcement device for prefabricated concrete poles and specifically includes the following steps: Step 1: Install the fixed upper platform 1 and the movable lower platform 2 along the U-shaped clearance groove 3 at the bottom of the pole, so that the pole clamping mechanism can clamp the pole. Specifically, the operator inserts the U-shaped clearance groove 3 of the fixed upper platform 1 and the movable lower platform 2 into the bottom of the pole from the side, so that the pole is located in the U-shaped clearance groove 3. Then, the electric telescopic cylinder 16 is activated. The telescopic end of the electric telescopic cylinder 16 extends and pushes the action arm 14 to rotate through the linkage mechanism 15, which drives the movable pole clamping pad 7 to move towards the fixed pole clamping pad 6 until the movable pole clamping pad 7 and the fixed pole clamping pad 6 clamp the pole from both sides, completing the initial installation and positioning of the device.

[0032] Step 2: Install the detachable insert plate 18 onto one side of the fixed upper platform 1, so that the threaded rod 22 engages with the threaded opening on the push plate 21. Specifically, insert the semi-circular engaging slot 19 of the detachable insert plate 18 into the pole from the side, so that the detachable insert plate 18 and the U-shaped clearance slot 3 of the fixed upper platform 1 are laterally aligned, ensuring that the threaded rod 22 passes through the threaded opening of the push plate 21 and forms a threaded engagement. At this time, the movable enclosure 9 and the fixed enclosure 8 are in a separated state, so that the device can avoid obstacles along the way during the subsequent climbing process.

[0033] Step 3: The control device performs the pole climbing operation until the pouring cavity 10 is outside the pole that needs to be reinforced. Specifically, the telescopic cylinder 13 is activated, and the telescopic cylinder 13 alternately extends and retracts. With the cooperation of the pole holding mechanism, the device achieves step-by-step climbing. When the device climbs to the target height, the electric telescopic cylinder 16 is activated again to make the movable pole holding pad 7 hold the pole tightly and temporarily fix the device in the target position. During the climbing process, the device can also selectively stop at the position to be reinforced and start the pneumatic impact drill 33 to roughen the outer surface of the pole. After the treatment is completed, the height is lowered to the target position to carry out the reinforcement pouring operation.

[0034] Step 4: Start the telescopic drive motor 23. The telescopic drive motor 23 drives the threaded rod 22 to rotate, pushing the push plate 21 and the detachable insert plate 18 to move towards the fixed upper platform 1, so that the movable enclosure 9 and the fixed enclosure 8 are joined together to form a closed pouring cavity 10. Then start the bidirectional air pump 24. The bidirectional air pump 24 pumps air into the sealing airbag 20 to expand the sealing airbag 20, sealing the gap between the enclosure channel and the pole, thus achieving the sealing of the pouring cavity 10. Next, the ground concrete pump is started, and steel fiber mixed concrete is poured into the pouring cavity 10 through the concrete pumping pipe 17. During the pouring process, the telescopic cylinder 27 and the vibration motor 29 are started, and the vibrating rod 30 is inserted into the concrete in the pouring cavity 10 to vibrate and compact it. After the concrete has solidified, the above mechanisms are reversed to separate the movable enclosure 9 from the fixed enclosure 8, the sealing airbag 20 is deflated and retracted, and the pole holding mechanism is released. The entire device is then moved off the pole to complete the reinforcement of a single pole. The entire device can be moved to the next pole for reuse.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated non-destructive reinforcement device for concrete utility poles, characterized in that, include: The pole climbing mechanism, which is installed on the utility pole and can move up and down along it, includes a fixed upper platform and a movable lower platform. The fixed upper platform and the movable lower platform are respectively provided with U-shaped clearance grooves through which the utility pole passes. The four corners of the fixed upper platform are fixed with sliding rods. The movable lower platform is provided with sliding sleeves that slide with the sliding rods. A lifting traction mechanism is connected between the fixed upper platform and the movable lower platform to drive the movable lower platform to move up and down along the sliding rods. The pole-holding mechanism is respectively set on the fixed upper platform and the movable lower platform, including a fixed pole-holding pad and a movable pole-holding pad. The movable pole-holding pad is driven by a clamping mechanism and opens and closes relative to the fixed pole-holding pad to realize the pole-holding or pole-releasing action. The reinforcement mechanism, installed on a fixed upper platform, includes a fixed enclosure and a movable enclosure, which together form a casting cavity located on the outer periphery of the pole. By pouring steel fiber mixed concrete into the casting cavity, a non-destructive outer reinforcement layer is formed on the outer periphery of the pole after curing.

2. The prefabricated concrete pole non-destructive reinforcement device according to claim 1, characterized in that: The end of the slide bar furthest from the fixed upper platform is fixedly connected to the protective base plate.

3. The prefabricated concrete pole non-destructive reinforcement device according to claim 2, characterized in that: The lifting and traction mechanism includes lifting links and telescopic cylinders. The lifting and traction mechanism is provided in pairs and symmetrically distributed on both sides of the U-shaped clearance groove. Each set of lifting and traction mechanisms includes four lifting links. The lifting links are hinged to the opposite side of the fixed upper platform and the movable lower platform. The end of the lifting link away from the fixed upper platform or the movable lower platform is respectively hinged to the fixed end or the movable end of the telescopic cylinder. The telescopic movement of the telescopic cylinder drives the movable lower platform to move up and down.

4. The prefabricated concrete pole non-destructive reinforcement device according to claim 3, characterized in that: The fixed pole support pad is fixedly installed on the fixed upper platform and the movable lower platform. The movable pole support pad is fixedly installed on the actuator arm. The actuator arm is fixedly and rotatably installed on the fixed upper platform and the movable lower platform. The actuator arm is also hinged to the linkage mechanism. The clamping mechanism is an electric telescopic cylinder. The electric telescopic cylinder is installed on the fixed upper platform and the movable lower platform, and the telescopic end of the electric telescopic cylinder is hinged to the linkage mechanism. Thus, the telescopic movement of the electric telescopic cylinder drives the movable pole support pad to open and close.

5. The prefabricated concrete pole non-destructive reinforcement device according to claim 4, characterized in that: The fixed fence is fixedly installed on a fixed platform. One side of the bottom of the fixed fence is connected to a concrete pumping pipe, which is connected to a concrete pump installed on the ground. The movable fence is fixedly installed on a detachable insert plate. The detachable insert plate is provided with a semi-circular mating groove that cooperates with the U-shaped clearance groove. The U-shaped clearance groove and the semi-circular mating groove define the enclosure channel for inserting the power pole. The inner side of the enclosure channel is provided with sealing airbags. The expansion of the sealing airbags fills and seals the gap between the enclosure channel and the power pole.

6. The prefabricated concrete pole non-destructive reinforcement device according to claim 5, characterized in that: A push plate is also fixedly installed on the detachable insert plate. The push plate has threaded openings on both sides, and a threaded rod is inserted into the threaded opening. The threaded rod is fixedly connected to the drive shaft of the telescopic drive motor. The telescopic drive motor is fixedly installed on the fixed upper platform. The detachable insert plate is pushed to slide horizontally by the rotation of the telescopic drive motor.

7. The prefabricated concrete pole non-destructive reinforcement device according to claim 6, characterized in that: A bidirectional air pump is also fixedly installed on one side of the push plate. Both the push plate and the detachable insert plate have front air passages that communicate with the bidirectional air pump. The fixed upper platform has a corresponding rear air passage. When the push plate and the fixed upper platform are in contact, the front air passages and the rear air passages are connected. The front air passages and the rear air passages are respectively connected to the sealing airbag on the same side. The bidirectional air pump pumps air into or vents air into the sealing airbag, thereby causing the sealing airbag to expand or contract.

8. The prefabricated concrete pole non-destructive reinforcement device according to claim 7, characterized in that: A telescopic cylinder is also fixedly installed on one side of the push plate. A deflection mounting plate is rotatably connected to the upper end of the telescopic arm of the telescopic cylinder. A deflection motor that drives its own deflection is installed on the deflection mounting plate. A vibration motor is also fixedly installed at one end of the deflection mounting plate. The vibration rod of the vibration motor is movably set inside the casting cavity.

9. The prefabricated concrete pole non-destructive reinforcement device according to claim 8, characterized in that: The upper surface of the movable lower platform is also fixedly provided with an arc-shaped slide rail, on which an arc-shaped movable block is movably installed. Driven by a built-in motor, the arc-shaped movable block moves in an arc around the arc-shaped slide rail. A pneumatic impact drill is fixedly installed on the upper part of the arc-shaped movable block. The pneumatic impact drill's pneumatic punch faces the rod body. The pneumatic impact drill is connected to an air pump set on the ground through an air supply pipe. By supplying air to the pneumatic impact drill, the pneumatic drill bit is pushed to perform roughening operations on the outer periphery of the rod body.

10. A reinforcement method, based on the prefabricated concrete pole non-destructive reinforcement device as described in claim 9, characterized in that, Includes the following steps: Step 1: Install the fixed upper platform and the movable lower platform along the U-shaped clearance groove at the bottom of the pole, and enable the pole clamping mechanism to clamp and hold the pole. Step 2: Install the detachable insert plate onto one side of the fixed upper platform so that the threaded rod mates with the threaded opening on the push plate; Step 3: The control device is used to climb the pole until the pouring cavity is outside the pole that needs to be reinforced; Step 4: Pour steel fiber-reinforced concrete into the casting cavity. After the concrete has cured, remove the entire device from the pole.

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