Modular assembled concrete pole

Abstract

The present application relates to the technical field of fabricated concrete electric pole, and particularly discloses a modular fabricated concrete electric pole, which comprises connecting components and at least two pole bodies, the pole body is integrally poured and formed by wrapping a steel reinforcement cage with UHPC material, and the connecting components are used for coaxial butt joint and fixation of the two adjacent pole bodies; the connecting component comprises a socket, a plug and a stop block, the socket and the plug are respectively fixed at the two end portions of the pole body; a plurality of insertion grooves are equidistantly formed on the outer circumferential surface of the socket, the insertion grooves comprise an insertion groove and a clamping groove arranged in an L shape, and one end of the insertion groove extends to the end surface of the socket. The present application effectively optimizes the structural layout of the connecting part, cooperates with the socket of the hollow structure, realizes the lightweight design of the electric pole, reduces the self-weight of the pole end and the wind vibration force response, and further improves the economy and the whole life cycle use durability of the overall structure of the electric pole under the premise of ensuring the connection safety.

Description

Technical Field

[0001] This invention relates to the field of prefabricated concrete pole technology, specifically a modular prefabricated concrete pole. Background Technology

[0002] Traditional monolithic concrete poles suffer from problems such as large length, difficult transportation, and high requirements for hoisting equipment. The industry generally adopts a segmented splicing structure, which breaks down the pole into multiple prefabricated units in the factory and then assembles them on site. This effectively solves the transportation and construction problems. However, the existing spliced ​​concrete pole connection methods still have obvious technical defects and are difficult to meet the needs of engineering applications.

[0003] Existing spliced ​​cement utility poles generally use flanges and bolts to connect pole segments. For example, the spliced ​​cement utility pole and its assembly method disclosed in patent document CN120684044A connects the upper pole, lower pole and connecting pole through a flange bolt structure. Although a positioning mechanism is set up to optimize the assembly positioning accuracy, the core connection and force between pole segments still rely on the bolt and flange to be completed, and it has not gotten rid of the inherent limitations of bolt connection.

[0004] The bolted connection method has the following drawbacks: As a core load-bearing component, the bolt is exposed to harsh outdoor environments such as rain, snow, salt spray, and temperature differences for a long time, which makes it very easy for it to oxidize and rust. This will cause the preload to decrease and the structure to fail, greatly increasing the safety hazards of the pole connection and making it impossible to guarantee the stability and durability of the pole throughout its entire life cycle. Summary of the Invention

[0005] The purpose of this invention is to provide a modular prefabricated concrete pole to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A modular prefabricated concrete pole includes a connecting component and at least two pole bodies. The pole bodies are integrally cast with a steel reinforcement skeleton wrapped in UHPC material. The connecting component is used for coaxial docking and fixing of adjacent pole bodies. The connecting component includes a socket, a plug, and a stop block, with the socket and plug respectively fixed to two ends of the rod body; The socket has several slots evenly spaced on its outer circumference. Each slot includes an L-shaped insertion slot and a locking slot. One end of the insertion slot extends to the end face of the socket, and the locking slot is connected to one side of the other end of the insertion slot. The inner top surface of the locking slot is provided with a first inclined surface. One end of the plug is fixed with several plugs that are equidistantly arranged, and the plugs are adapted to the slot; When coaxially connecting two rods, insert the plug on one rod into the slot of the other rod and rotate it by a predetermined angle so that one end of the plug along the circumference of the socket is pressed against the inside of the locking groove, and the other end of the plug along the circumference of the socket forms an installation groove between it and the inner wall of the insertion groove. The stop block is detachably installed inside the mounting slot, and the two ends of the stop block along the circumference of the socket abut against the inner sidewalls of the plug and the insertion slot respectively, so that the plug and the slot form a pre-tight fit.

[0007] Preferably, the plug-in includes a plurality of first plug-in portions and second plug-in portions, the first plug-in portions are provided with a second inclined surface, the second plug-in portions are provided with a third inclined surface, and the second inclined surface and the third inclined surface are matched with the first inclined surface; Several supporting ribs are formed on the third inclined surface by means of grooves; When installing wires on the pole, several second plug-in parts are symmetrically arranged on both sides of the wire length direction, and several first plug-in parts are symmetrically arranged along the direction perpendicular to the wire length.

[0008] Preferably, a first fixing plate is fixedly connected inside the plug, and a plug plate is fixedly connected to the bottom of the first fixing plate via a plug rod; The socket is internally fixedly connected to a second fixing plate, which has a first through hole and a second through hole. The first through hole is matched with the plug rod, and the second through hole is matched with the plug plate.

[0009] Preferably, the first plug-in portion includes a first vertical plug and a first horizontal plug, the first horizontal plug is fixed to one side of the bottom end of the first vertical plug, the top end of the first vertical plug is fixedly connected to the plug, and the second inclined surface is disposed on the top surface of the first horizontal plug.

[0010] Preferably, the second plug-in portion includes a second vertical plug and a second horizontal plug, the second horizontal plug is fixed to one side of the bottom of the second vertical plug, the top of the second vertical plug is fixedly connected to the plug, and the third inclined surface is disposed on the top surface of the second horizontal plug.

[0011] Preferably, a screw is detachably provided inside the mounting groove, and a receiving groove is provided on the side of the stop block away from the center of the socket. One end of the screw extends through into the receiving groove and is threadedly connected to a nut.

[0012] Preferably, the circumferential surface of the nut is in line contact with the two inner sidewalls of the receiving groove along the circumferential direction of the socket.

[0013] Preferably, the inner surface of the mounting groove is provided with a connecting hole, the inner circumferential surface of the connecting hole is provided with a through groove, the other end of the screw is coaxially fixed with an optical axis, one end of the optical axis is fixed with a limit rod, and the diameter of the limit rod is smaller than the width of the through groove.

[0014] Preferably, the inner circumferential surface of the socket is provided with a limiting groove, the limiting groove is connected to the connecting hole, and the limiting rod is matched with the limiting groove.

[0015] Preferably, a baffle is fixedly connected to the inner circumferential surface of the socket, and the baffle is provided corresponding to the connection hole.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention achieves a plug-in connection between inserts and slots. After rotating the two poles relative to each other by a predetermined angle, only a single stop block is needed to tighten and limit the inserts. This allows multiple inserts to simultaneously form a stable pre-tightened fit with the slots. Compared to traditional bolted connections, which require at least two bolts to secure the pole, this significantly simplifies the assembly process. Furthermore, the quick-installation structure with a single stop block further reduces on-site construction difficulty and effectively improves assembly efficiency, perfectly meeting the engineering application requirements of segmented prefabrication and rapid on-site assembly of precast concrete poles. In addition, the assembly method provided by this solution transfers all loads throughout the pole's lifespan through surface contact between the inserts and slots, completely eliminating the need for bolts. This fundamentally avoids the problems of bolts easily oxidizing and corroding in harsh outdoor environments such as rain, snow, salt spray, and temperature differences, leading to pre-tightening force attenuation and structural failure. It eliminates safety hazards at the connection points and significantly improves the stability and durability of the pole throughout its entire lifespan.

[0017] This invention addresses the significant load distribution characteristics of utility poles, where the stress on the wire-attached side is considerably greater than on the non-wire-attached side. It employs a differentiated load-bearing and directional arrangement design for the connectors, placing a high-load-bearing first connector on the wire-attached side and a low-load-bearing second connector on the non-wire-attached side. This achieves a precise fit between the connection structure and the actual stress conditions of the pole. This design fully utilizes the high load-bearing capacity of the first connector on the wire-attached side, providing ample load-bearing redundancy for conductor weight, wind load, and additional bending moments. This fundamentally avoids deformation, loosening, and even failure of the connection due to concentrated overload, significantly improving the structural reliability and service stability of the pole connection. Simultaneously, the second connector on the non-wire-attached side, adapted to lighter load requirements, eliminates redundant load-bearing structures and materials, effectively optimizing the structural layout of the connection. Combined with a hollow socket, this achieves a lightweight pole design, reducing pole end weight and wind-induced vibration response. While ensuring connection safety, this further enhances the overall economic efficiency and life-cycle durability of the pole structure. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the socket, plug, stop block, first fixing plate, and second fixing plate of the present invention. Figure 4 This is a schematic diagram of the structure of the socket of the present invention; Figure 5 This is a schematic diagram of the plug structure of the present invention; Figure 6 This is a schematic diagram of the structure of the socket and the second fixing plate of the present invention; Figure 7 This is a schematic diagram of the structure of the socket and the baffle of the present invention; Figure 8 This is a partial structural diagram of the outer peripheral wall of the insertion slot of the present invention; Figure 9 This is a partial structural diagram of the inner peripheral wall of the socket of the present invention; Figure 10 This is a top cross-sectional view of the socket, the first plug-in portion, the second plug-in portion, and the stop block of the present invention. Figure 11 This is a top view of a partial cross-sectional structure of the socket of the present invention; Figure 12 This is a schematic diagram of the structure of the second insertion part of the present invention; Figure 13 This is a schematic diagram of the structure of the first insertion part of the present invention; Figure 14 This is a schematic diagram of the screw structure of the present invention; Figure 15 This is a front cross-sectional view of the socket, plug, first fixing plate, and second fixing plate of the present invention. Figure 16 This is a cross-sectional three-dimensional structural diagram of the stop block of the present invention; Figure 17 This is a top view cross-sectional structural diagram of the stop block of the present invention.

[0019] In the diagram: 1. Rod body; 2. Socket; 21. Slot; 211. Plug groove; 212. Locking groove; 213. First inclined surface; 22. Connecting hole; 23. Through groove; 24. Limiting groove; 25. Baffle; 3. Plug; 31. First plug part; 311. First vertical plug block; 312. First horizontal plug block; 313. Second inclined surface; 32. Second plug part; 321. Second vertical plug block; 322. Second horizontal plug block; 323. Third inclined surface; 324. Groove; 325. Support rib; 4. Stop block; 41. Receiving groove; 5. First fixing plate; 51. Plug rod; 52. Plug plate; 6. Second fixing plate; 61. First through hole; 62. Second through hole; 7. Screw; 71. Optical axis; 72. Limiting rod; 73. Nut. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-17 The present invention provides a technical solution: A modular prefabricated concrete pole includes connecting components and at least two pole bodies 1, such as Figure 1 As shown, this embodiment uses two poles 1 as an example for illustration. The two poles 1 are coaxially fixedly connected by a connecting component between them. A crossarm is installed on the top of the assembled concrete pole, and the crossarm is used to erect the power lines, thereby realizing power transmission.

[0022] In this embodiment, the pole body 1 is integrally cast with a steel reinforcement skeleton wrapped in UHPC (ultra-high performance concrete) material, and the connecting parts are used for coaxial docking and fixing of two adjacent pole bodies 1.

[0023] In detail, pole body 1 uses UHPC as the main matrix material, with a pre-installed steel reinforcement skeleton inside as a load-bearing reinforcement structure. The steel reinforcement skeleton is completely encapsulated by UHPC material, and the two are formed into a continuous and dense integral structure through an integrated casting process. Among them, the steel reinforcement skeleton, as the core load-bearing reinforcement component of pole body 1, can significantly improve the tensile, bending, and shear resistance of the pole body, meeting the stress requirements of the pole to withstand wind loads, conductor tension, and external impacts. UHPC material has ultra-high mechanical strength, excellent durability, and crack resistance, making it suitable for long-term harsh outdoor service environments and extending the service life of the pole body. The integrated casting process tightly integrates the UHPC matrix and the steel reinforcement skeleton into a seamless and splice-free whole, eliminating weak points in the structural joints, ensuring the structural integrity and stress uniformity of pole body 1, and adapting to the production and construction needs of prefabricated and on-site assembled modular poles.

[0024] Specifically, such as Figure 2 and Figure 3 As shown, the connecting components include a socket 2, a plug 3, and a stop block 4. The socket 2 and plug 3 are respectively fixed to the two ends of the pole body 1. The socket 2, plug 3, and stop block 4 are all made of metal, such as steel. In actual construction, in order to ensure that the socket 2, plug 3, and stop block 4 made of metal can adapt to the harsh outdoor environment for a long time and avoid the impact of oxidation and corrosion on the structural connection reliability and service life, the above-mentioned metal components can adopt conventional anti-corrosion treatment processes, including hot-dip galvanizing, electroplating, and other surface coating and protective treatment processes. The above-mentioned mature anti-corrosion processes can effectively block the contact between external corrosive media and the metal substrate, achieve the purpose of anti-corrosion of components, and meet the outdoor use requirements of prefabricated concrete poles.

[0025] Specifically, in some embodiments, the entire pole can be divided into a three-section structure: a lower base section, a middle standard section, and a top functional section. Figure 1 The diagram shows the overall structure of the central standard section and the top functional section, but not the lower base section. The number of central standard sections can be selected according to actual needs; for example, three or four central standard sections can be chosen. The lower base section can be connected to the ground foundation using pre-embedded anchor bolts, sleeve insertion connections, or grouting fixation. The ground foundation can be made of UHPC or ordinary concrete; these are existing technologies and will not be elaborated upon here. This technical solution mainly focuses on improving and innovating the connection structure between the sections.

[0026] like Figure 4As shown, the socket 2 is a ring-shaped structural component. Several slots 21 are equally spaced on the outer circumference of the socket 2. The slots 21 include L-shaped insertion grooves 211 and locking grooves 212. One end of the insertion groove 211 extends to the upper surface of the socket 2, and the locking groove 212 is connected to one side of the other end of the insertion groove 211. The inner top surface of the locking groove 212 is provided with a first inclined surface 213. The structural design of the slots 21 is to cooperate with the plug to achieve axial pre-tightening connection.

[0027] One end of the plug 3 is fixed with several equally spaced plugs, which are adapted to fit into the slot 21; for example... Figure 3 The diagram shows the overall structure after the plug-in is inserted into slot 21.

[0028] When two rods 1 need to be coaxially connected, insert the plug on one rod 1 into the slot 21 of the other rod 1 and rotate it by a predetermined angle so that one end of the plug along the circumference of the socket 2 is pressed against the inside of the locking groove 212, and the other end of the plug along the circumference of the socket 2 forms an installation groove between it and the inner wall of the insertion groove 211; this completes the first step. Then, the stop block 4 is detachably installed inside the installation groove, and the two ends of the stop block 4 along the circumference of the socket 2 are pressed against the plug and the inner side wall of the insertion groove 211 respectively, so that the plug and the slot 21 form a pre-tight fit; this completes the second step, and the two rods 1 are coaxially fixedly connected.

[0029] In the above solution, the plug and slot 21 are connected by insertion. After rotating the two pole bodies 1 relative to each other by a predetermined angle, only a single stop block 4 needs to be installed to tighten and limit the plug. This allows multiple plugs to simultaneously form a stable pre-tightening fit with the slot 21. Compared to the traditional bolt connection method, which requires at least two bolts to fasten the pole body 1, this significantly simplifies the assembly process. At the same time, the quick-installation structure of the single stop block 4 further reduces the difficulty of on-site construction and effectively improves assembly efficiency, perfectly meeting the engineering application requirements of segmented prefabrication and rapid on-site assembly of precast concrete poles. In addition, the assembly method provided by this solution transmits the load through the surface contact between the plug and slot 21 throughout the entire service life of the pole, completely eliminating the bolt-borne force method. This fundamentally avoids the problems of easy oxidation and corrosion of bolts in harsh outdoor environments such as rain, snow, salt spray, and temperature differences, which can lead to pre-tightening force attenuation and structural failure. It eliminates safety hazards at the connection points and significantly improves the service stability and durability of the pole throughout its entire life cycle.

[0030] like Figure 5As shown, the plug-in includes several first plug-in portions 31 and second plug-in portions 32. In this embodiment, the number of first plug-in portions 31 is set to four, and the number of second plug-in portions 32 is set to two. The first plug-in portions 31 are provided with a second inclined surface 313, and the second plug-in portions 32 are provided with a third inclined surface 323. The second inclined surface 313 and the third inclined surface 323 are matched with the first inclined surface 213. Under the action of the stop block 4, the second inclined surface 313 and the third inclined surface 323 can respectively abut against the corresponding first inclined surface 213.

[0031] In this embodiment, the first plug-in part 31 includes a first vertical plug 311 and a first horizontal plug 312. The first horizontal plug 312 is fixed to one side of the bottom end of the first vertical plug 311. The top end of the first vertical plug 311 is fixedly connected to the plug 3. The second inclined surface 313 is disposed on the top surface of the first horizontal plug 312.

[0032] In this embodiment, the second plug-in portion 32 includes a second vertical plug 321 and a second horizontal plug 322. The second horizontal plug 322 is fixed to one side of the bottom of the second vertical plug 321. The top of the second vertical plug 321 is fixedly connected to the plug 3. The third inclined surface 323 is disposed on the top surface of the second horizontal plug 322.

[0033] Several support ribs 325 are formed on the third inclined surface 323 through grooves 324; this reduces the weight of the second insertion part 32 itself, and at the same time... Figure 7 As shown, the socket 2 adopts a hollow structure design, which reduces the weight of the entire socket 2. This makes it easier to achieve a lightweight design, facilitating transportation and hoisting.

[0034] When installing power lines on utility poles, several second connectors 32 are symmetrically arranged on both sides of the power line's length, and several first connectors 31 are symmetrically arranged along a direction perpendicular to the power line's length. Specifically, as shown... Figure 10 As shown, the vertical lines with arrows represent the extension direction of the wires when they are installed on the pole. It can be seen that the two second connectors 32 are symmetrically arranged on both sides of this wire extension direction; the location of the second connectors 32 can be defined as the non-wire-attached side of the pole. The four first connectors 31 are symmetrically arranged perpendicular to the wire extension direction; the location of the first connectors 31 can be defined as the wire-attached side of the pole. In actual use, due to the weight of the wires and the forces exerted on them, such as wind loads, the load on the wire-attached side of the pole is greater than the load on the non-wire-attached side. Therefore, this technical solution adopts the above design method, which achieves both lightweight pole design and ensures that the first connectors 31 on the wire-attached side have sufficient load-bearing redundancy to meet the stress requirements under high load conditions.

[0035] In the above scheme, considering the significant increase in load distribution on the pole's wire-attached side compared to the non-wire-attached side, a differentiated load-bearing and directional arrangement design for the connectors is adopted. The high-load-bearing capacity first connector 31 is placed on the wire-attached side, while the low-load-bearing capacity second connector 32 is placed on the non-wire-attached side, achieving precise adaptation of the connection structure to the pole's actual stress conditions. This design fully utilizes the high load-bearing capacity of the first connector 31 on the wire-attached side, providing sufficient load-bearing redundancy for conductor self-weight, wind load, and additional bending moment. This fundamentally avoids deformation, loosening, or even failure of the connection due to concentrated overload, significantly improving the structural reliability and service stability of the pole connection structure. Simultaneously, the non-wire-attached side uses the second connector 32, adapted to light load requirements, eliminating redundant load-bearing structures and materials, effectively optimizing the structural layout of the connection. Combined with the hollow socket 2, this achieves a lightweight pole design, reducing the pole end's self-weight and wind vibration response. While ensuring connection safety, this further enhances the overall economic efficiency and life-cycle durability of the pole structure.

[0036] In addition, this technical solution uses a plug-in and slot 21 method, which can significantly improve the shear resistance of the connection part.

[0037] Furthermore, in order to enable the first plug-in part 31 and the second plug-in part 32 to be inserted into the slot 21 at the appropriate position, a first fixing plate 5 is fixedly connected inside the plug 3, and the bottom of the first fixing plate 5 is fixedly connected to the plug plate 52 via the plug rod 51; the plug rod 51 is a round rod, the plug plate 52 is a rectangular plate, and the first fixing plate 5 is a long strip plate.

[0038] A second fixing plate 6 is fixedly connected inside the socket 2. The second fixing plate 6 is a long strip plate. A first through hole 61 and a second through hole 62 are provided on the second fixing plate 6. The first through hole 61 is matched with the plug rod 51, that is, the first through hole 61 is a round hole. The second through hole 62 is matched with the plug plate 52, that is, the second through hole 62 is a rectangular hole.

[0039] The bottom edge of the insert plate 52 can be designed with a chamfered structure to reduce the bottom area of ​​the insert plate 52, so that the insert plate 52 can be quickly inserted into the second through hole 62.

[0040] In actual connection, the insert plate 52 can be aligned with the second through hole 62, and then the insert plate 52 can be directly inserted and pass through the second through hole 62. During the process of the insert plate 52 passing through the second through hole 62, from Figure 15As can be seen, after the connection is completed, the bottom surface of the insert plate 52 is lower than the bottom surface of the first insertion part 31. Therefore, during connection, the insert plate 52 will first be inserted into the second through hole 62 to achieve pre-positioning of the plug-in and the slot 21. Then, as the insert plate 52 is inserted deeper into the second through hole 62, the plug-in is also gradually inserted into the slot 21. When the bottom surface of the plug-in contacts the inner bottom surface of the slot 21, the top surface of the insert plate 52 is lower than or equal to the bottom surface of the second fixing plate 6. Then the plug-in can be rotated. The insert plate 52, in conjunction with the second through hole 62, can effectively prevent the first insertion part 31 from being inserted into the wrong slot 21. In addition, in this technical solution, when the bottom surface of the plug-in contacts the inner bottom surface of the slot 21, the top surface of the insert plate 52 is equal to the bottom surface of the second fixing plate 6. In this way, during the rotation of the plug-in, the top surface of the insert plate 52 can always remain in contact with the bottom surface of the second fixing plate 6. The combination of the two can also improve the bending resistance of the entire pole connection position.

[0041] In this embodiment, a screw 7 is detachably installed inside the mounting groove, and a receiving groove 41 is formed on the side of the stop block 4 away from the center of the socket 2. One end of the screw 7 extends through the receiving groove 41 and is threadedly connected to a nut 73. Figure 10 and Figure 17 As can be seen, the stop block 4 has a fan-shaped structure, with its center falling on the axis of the rod body 1. Therefore, along the direction that gradually approaches the axis of the rod body 1, the cross-sectional area of ​​the stop block 4 gradually decreases. Thus, the stop block 4 can be relatively easily inserted into the interior of the mounting groove, and then the stop block 4 can be fastened with the screw 7 and nut 73. Moreover, the fan-shaped structure of the stop block 4 can adapt to the shape of the entire mounting groove, so that the stop block 4 can fit snugly with the plug, with a large support surface and good stability.

[0042] In this embodiment, the circumferential surface of the nut 73 is in line contact with the two inner sidewalls of the receiving groove 41 along the circumference of the socket 2; this allows the nut 73 to effectively support the inner wall of the receiving groove 41, improving the rigidity of the entire stop block 4 and providing good support performance.

[0043] The detachable design of the screw 7 is as follows: A connecting hole 22 is provided on the inner surface of the mounting slot. A through groove 23 is provided on the inner circumferential surface of the connecting hole 22. A light shaft 71 is coaxially fixed to the other end of the screw 7. A limit rod 72 is fixed to one end of the light shaft 71. The diameter of the limit rod 72 is smaller than the width of the through groove 23. The screw 7 is disassembled by removing the nut 73, pulling out the stop block 4, and then rotating the screw 7 to align the limit rod 72 with the through groove 23, allowing the screw 7 to be pulled out directly. The installation method for the screw 7 is the opposite. This design prevents the screw 7 from obstructing the insertion of the plug-in, allowing the screw 7 to be easily installed into the mounting slot after the plug-in is inserted into the slot 21 and rotated to a predetermined angle.

[0044] A limiting groove 24 is formed on the inner circumferential surface of the socket 2. The limiting groove 24 communicates with the connecting hole 22, and the limiting rod 72 is matched with the limiting groove 24. After tightening the nut 73, the limiting rod 72 can abut against the inside of the limiting groove 24, thus preventing the screw 7 from rotating.

[0045] In this embodiment, a baffle 25 is fixedly connected to the inner circumferential surface of the socket 2, and the baffle 25 is correspondingly provided with the connection hole 22. The function of the baffle 25 is to limit the position of the screw 7 and prevent the bolt from falling off when the screw 7 is pressed inward.

[0046] 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 modular prefabricated concrete utility pole, characterized in that, It includes a connecting component and at least two poles, wherein the poles are integrally cast with a steel reinforcement skeleton wrapped in UHPC material, and the connecting component is used for coaxial docking and fixing of two adjacent poles; The connecting component includes a socket, a plug, and a stop block, with the socket and plug respectively fixed to two ends of the rod body; The socket has several slots evenly spaced on its outer circumference. Each slot includes an L-shaped insertion slot and a locking slot. One end of the insertion slot extends to the end face of the socket, and the locking slot is connected to one side of the other end of the insertion slot. The inner top surface of the locking slot is provided with a first inclined surface. One end of the plug is fixed with several plugs that are equidistantly arranged, and the plugs are adapted to the slot; When coaxially connecting two rods, insert the plug on one rod into the slot of the other rod and rotate it by a predetermined angle so that one end of the plug along the circumference of the socket is pressed against the inside of the locking groove, and the other end of the plug along the circumference of the socket forms an installation groove between it and the inner wall of the insertion groove. The stop block is detachably installed inside the mounting slot, and the two ends of the stop block along the circumference of the socket abut against the inner sidewalls of the plug and the insertion slot respectively, so that the plug and the slot form a pre-tight fit.

2. A modular prefabricated concrete pole according to claim 1, characterized in that, The plug-in includes several first plug-in parts and second plug-in parts. The first plug-in parts are provided with a second inclined surface, and the second plug-in parts are provided with a third inclined surface. The second inclined surface and the third inclined surface are matched with the first inclined surface. Several supporting ribs are formed on the third inclined surface by means of grooves; When installing wires on the pole, several second plug-in parts are symmetrically arranged on both sides of the wire length direction, and several first plug-in parts are symmetrically arranged along the direction perpendicular to the wire length.

3. A modular prefabricated concrete pole according to claim 1, characterized in that, The plug is internally fixedly connected to a first fixing plate, and the bottom of the first fixing plate is fixedly connected to a plug plate via a plug rod; The socket is internally fixedly connected to a second fixing plate, which has a first through hole and a second through hole. The first through hole is matched with the plug rod, and the second through hole is matched with the plug plate.

4. A modular prefabricated concrete pole according to claim 2, characterized in that, The first plug-in portion includes a first vertical plug and a first horizontal plug. The first horizontal plug is fixed to one side of the bottom end of the first vertical plug. The top end of the first vertical plug is fixedly connected to the plug. The second inclined surface is disposed on the top surface of the first horizontal plug.

5. A modular prefabricated concrete pole according to claim 2, characterized in that, The second plug-in portion includes a second vertical plug and a second horizontal plug. The second horizontal plug is fixed to one side of the bottom of the second vertical plug. The top of the second vertical plug is fixedly connected to the plug. The third inclined surface is provided on the top surface of the second horizontal plug.

6. A modular prefabricated concrete pole according to claim 1, characterized in that, The mounting groove is detachably equipped with a screw rod inside. The stop block has a receiving groove on the side away from the center of the socket. One end of the screw rod extends through the receiving groove and is threadedly connected to a nut.

7. A modular prefabricated concrete pole according to claim 6, characterized in that, The circumferential surface of the nut is in line contact with the two inner sidewalls of the receiving groove along the circumference of the socket.

8. A modular prefabricated concrete pole according to claim 6, characterized in that, The inner surface of the mounting groove is provided with a connecting hole, and the inner circumferential surface of the connecting hole is provided with a through groove. The other end of the screw is coaxially fixed with an optical axis, and one end of the optical axis is fixed with a limit rod. The diameter of the limit rod is smaller than the width of the through groove.

9. A modular prefabricated concrete pole according to claim 8, characterized in that, The socket has a limiting groove on its inner circumferential surface, the limiting groove is connected to the connecting hole, and the limiting rod is matched with the limiting groove.

10. A modular prefabricated concrete pole according to claim 8, characterized in that, A baffle is fixedly connected to the inner circumferential surface of the socket, and the baffle is provided corresponding to the connection hole.

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