Modular assembled cement pole

Abstract

The application discloses a modular assembled cement pole, and belongs to the technical field of the cement pole, which comprises a lower pole body and an upper pole body, and a connecting ring is arranged between the lower pole body and the upper pole body. The connecting ring is arranged between the upper pole body and the lower pole body, the triangular guide blocks are arranged in a head-to-tail mode on the upper and lower end faces of the connecting ring in a circumferential direction, the inclined surfaces of the upper and lower triangular guide blocks are oppositely arranged, the inclined guide grooves on the end portion fixing seats of the upper pole body and the lower pole body are matched, the upper pole body and the lower pole body can be automatically guided and aligned and form circumferential limiting during splicing and falling, the elastic plates and the wedge-shaped clamping blocks on the inner side of the connecting ring are matched with the annular grooves on the inner walls of the upper pole body and the lower pole body, the upper pole body can be automatically clamped after hoisting and falling, stable axial limiting is formed, bolt fastening operation is not needed for integral splicing, the circumferential positioning and the axial locking can be simultaneously completed after the upper pole body is hoisted and fallen, the process of high-altitude bolt tightening is omitted, the construction labor intensity and the high-altitude operation safety risk are effectively reduced, and the on-site splicing efficiency is remarkably improved.

Description

Technical Field

[0001] This invention relates to a cement utility pole, and more particularly to a modular assembled cement utility pole, belonging to the field of utility pole technology. Background Technology

[0002] Traditional cement utility poles are mostly integral cast-in-place structures, which are not only long and heavy, causing great inconvenience for transportation, but also require large lifting equipment during installation. To overcome these shortcomings, modular assembled cement utility poles have emerged. By disassembling the pole into multiple units for transportation and on-site assembly, transportation costs and construction difficulties are effectively reduced.

[0003] However, during the assembly of existing modular concrete utility poles, the pole sections are difficult to maintain a stable posture in the air due to the swinging of the hoisting ropes, and it is difficult to quickly align the upper and lower sections, which is time-consuming and labor-intensive. In addition, when fixing, bolts are used for connection and fixation, which is not only time-consuming and labor-intensive to tighten, but also requires working at height, which poses safety risks.

[0004] To address these issues, modular, assembled concrete utility poles were designed. Summary of the Invention

[0005] The main objective of this invention is to provide modular, assembled cement utility poles to solve the problems mentioned in the background art.

[0006] The objective of this invention can be achieved by adopting the following technical solution: Modular assembled cement utility poles include a lower pole body and an upper pole body. A connecting ring is provided between the lower pole body and the upper pole body. A circumferential positioning mechanism is provided between the connecting ring and the lower pole body and the upper pole body. An axial locking mechanism is provided inside the connecting ring. A correction and positioning mechanism is provided inside the lower pole body and the upper pole body. The circumferential positioning mechanism includes triangular guide blocks fixed to the upper and lower end faces of the connecting ring, and fixed seats fixed to the top of the lower rod and the bottom of the upper rod respectively. The fixed seats are provided with inclined guide grooves that cooperate with the triangular guide blocks. The triangular guide blocks are arranged end to end along the circumference of the connecting ring, and the inclined surfaces of the triangular guide blocks at the upper and lower ends of the connecting ring are set in opposite directions. The axial locking mechanism includes multiple sets of elastic plates arranged circumferentially on the inner side of the connecting ring. The free end of the elastic plate is fixed with a wedge-shaped locking block. The inner walls of the lower rod and the upper rod are provided with annular grooves that are adapted to engage with the wedge-shaped locking blocks. The alignment and positioning mechanism is used to pull down and correct the upper pole during hoisting, and to reinforce the pole after assembly.

[0007] Preferably, the calibration and positioning mechanism includes a T-shaped fixing block, a limiting ring, a steel wire rope, a positioning rod, and a connector. The T-shaped fixing block is fixed to the inner bottom end of the upper rod body, the limiting ring is fixed to the inner top end of the lower rod body, the top end of the steel wire rope is connected to the T-shaped fixing block through the connector, and an outlet hole for the steel wire rope to pass through is opened at the top end of the outer side of the lower rod body. After the steel wire rope passes through the limiting ring, it is led out from the outlet hole on the side wall of the top end of the lower rod body to the outside of the rod. The positioning rod is used to anchor the bottom end of the steel wire rope to the ground.

[0008] This structure not only allows ground personnel to pull the upper pole using wire ropes during hoisting, effectively restraining the swing of the upper pole and guiding it to quickly align, thus shortening the high-altitude docking time, but also forms a multi-directional tensioning system after assembly through tensioning and anchoring, significantly improving the pole's resistance to wind loads and overturning.

[0009] Preferably, the connecting ring is provided with a retraction mechanism for driving the elastic plate to retract radially. The retraction mechanism includes a mounting groove formed on the side wall of the connecting ring, an adjusting ring rotatably mounted in the mounting groove, a planar thread on the end face of the adjusting ring, multiple sets of sliding grooves formed radially on the side wall of the connecting ring, a sliding plate slidably mounted in the sliding groove, the sliding plate being fixedly connected to the elastic plate, a threaded groove that meshes with the planar thread on the sliding plate, adjusting holes uniformly formed circumferentially on the adjusting ring, and a waist-shaped hole formed on the connecting ring that mates with the adjusting hole.

[0010] When disassembly is required, the retractable mechanism can drive the elastic plate to retract radially inward, causing the wedge-shaped locking block to disengage from the ring groove, thus quickly releasing the axial lock. This facilitates the separation of the upper and lower rods from the connecting ring, enabling the non-destructive recycling and reuse of the connecting ring. At the same time, simply rotating the adjusting ring can synchronously drive multiple sets of sliding plates to slide radially through the planar thread. The operation is simple and labor-saving, and the threaded drive has good self-locking characteristics, ensuring the stability of the elastic plate in the retractable state.

[0011] Preferably, the connector includes a hook, a hanging ring, a stop block, and a spring. The hook is fixed to the bottom end of the T-shaped fixing block, the hanging ring is fixed to the top end of the wire rope, the stop block is hinged to the opening of the hook, and the spring is disposed between the stop block and the T-shaped fixing block.

[0012] This connector enables quick attachment and detachment of the wire rope from the T-shaped fixing block, making operation convenient and efficient. At the same time, the stop block can automatically reset and close the hook opening under the action of the spring, effectively preventing the hanging ring from accidentally coming off and ensuring the safety and reliability of the wire rope connection during hoisting.

[0013] Preferably, the cross-section of the triangular guide block is a right triangle, and the right-angled surfaces of the upper and lower triangular guide blocks are respectively attached to and fixed to the upper and lower end surfaces of the connecting ring.

[0014] This structure allows the triangular guide block to fit securely against the end face of the connecting ring. By using the reverse setting of the upper and lower inclined surfaces, the connecting ring can be automatically guided and aligned when it is inserted into the upper and lower rods. After being inserted into place, the straight edge fits against the side wall of the inclined guide groove to form a reliable circumferential limit, effectively improving the assembly positioning accuracy and anti-torsion performance.

[0015] Preferably, an outer sleeve is fitted and fixed on the outside of the connecting ring. The two ends of the outer sleeve cover the outside of the splicing ends of the lower rod and the upper rod, respectively. The top end of the lower rod and the bottom end of the upper rod are provided with stepped grooves that cooperate with the outer sleeve.

[0016] The outer sleeve can effectively cover the splicing gaps and prevent rainwater and dust from entering and corroding the internal metal parts. At the same time, the stepped groove is used to position and cover the end of the rod, forming a radial constraint, which significantly enhances the structural rigidity and bending resistance of the splice.

[0017] Preferably, the outer side of the outer sleeve is provided with a through groove that matches the waist-shaped hole, and the outer side of the through groove is covered with a baffle.

[0018] The through slot provides an operating channel for the adjustment tool, ensuring that the retraction mechanism can still be adjusted normally after the outer sleeve is installed; the cover plate blocks the through slot when not in operation to prevent mud and sand from entering the interior and affecting the reliability of the planar thread and slide plate, ensuring the sensitivity of the retraction mechanism for long-term use.

[0019] Preferably, at least three sets of wire ropes are provided, evenly distributed along the circumference of the pole, and each set of wire ropes is equipped with a set of positioning rods.

[0020] At least three sets of circumferentially distributed steel wire ropes can form a multi-directional symmetrical tension system after assembly, effectively balancing wind loads and external force impacts from different directions, and significantly enhancing the overall overturning resistance and long-term installation stability of the utility pole.

[0021] Preferably, the fixing seat is integrally cast with the lower rod and the upper rod, and the outer side of the fixing seat is evenly provided with protrusions and has a casting opening.

[0022] The integral casting process, combined with the protrusion and casting opening, enables the fixing seat and the concrete of the rod to form a strong mechanical interlocking structure, which greatly increases the bonding area and pull-out resistance, ensuring the structural reliability of the circumferential positioning mechanism under long-term load conditions and preventing the fixing seat from falling off the end of the rod.

[0023] Preferably, the guide slope of the wedge-shaped block is set towards the direction of the rod splicing and insertion, and the contact surface between the wedge-shaped block and the annular groove is a plane.

[0024] The guide ramp facing the insertion direction ensures that the rod smoothly compresses the elastic plate inward when it falls, and the insertion process is smooth and without jamming; the engagement surface adopts a planar contact, which can form a stable axial block after locking, preventing the wedge-shaped block from slipping out of the annular groove when under tension, greatly improving the reliability and tensile strength of axial locking.

[0025] The beneficial effects of this invention are as follows: The modular assembled cement utility pole provided by this invention features a connecting ring between the upper and lower pole bodies. Triangular guide blocks, which are arranged end-to-end along the circumferential direction on the upper and lower end faces of the connecting ring, are arranged with their inclined surfaces facing opposite directions. This, combined with the inclined guide grooves on the fixed seats at the ends of the upper and lower pole bodies, allows for automatic guidance and alignment during the assembly and placement process, forming a circumferential limit. Simultaneously, relying on the elastic plate and wedge-shaped locking block on the inner side of the connecting ring, and in conjunction with the annular grooves on the inner walls of the upper and lower pole bodies, the poles can automatically engage after hoisting into place, forming a stable axial limit. The entire assembly does not require bolt tightening. The circumferential positioning and axial locking can be completed simultaneously during the hoisting and placement of the upper pole body, eliminating the need for high-altitude bolt tightening. This effectively reduces the labor intensity of construction and the safety risks of high-altitude operations, and significantly improves on-site assembly efficiency. By setting up a correction and positioning mechanism consisting of a T-shaped fixing block, a limiting ring, a steel wire rope, a positioning rod, and a connector, the T-shaped fixing block is fixed to the bottom of the upper pole body, and the limiting ring is fixed to the top of the lower pole body. Before hoisting, the upper end of the steel wire rope is connected to the T-shaped fixing block through the connector. During hoisting, the steel wire rope can be pulled on the ground to restrain the hoisting swing of the upper pole body, guide the pole body to quickly center and align, and effectively shorten the time for splicing and alignment. After the assembly is completed, each set of steel wire ropes is tensioned and the positioning rod is anchored to the ground outside the pole body, which can form multi-directional tension reinforcement of the pole body and effectively improve the overall installation stability and anti-overturning ability of the utility pole. The retraction mechanism, consisting of a mounting groove, adjusting ring, flat thread, sliding groove, sliding plate, adjusting hole, waist-shaped hole, and cover plate, allows for the removal of the rod body when it needs to be disassembled. By rotating the adjusting ring, the flat thread drives multiple sliding plates to converge radially towards the center, thereby causing the elastic plate to retract and the wedge-shaped locking block to be pulled out of the ring groove, thus releasing the axial lock. This facilitates the separation and disassembly of the upper and lower rod bodies from the connecting ring. In addition, the connecting ring on the scrap rod can be reused, making it more practical. Attached Figure Description

[0026] Figure 1 This is a front view schematic diagram of the assembled and fixed state of the present invention; Figure 2 This is a schematic cross-sectional view of the inside of the rod body of the present invention; Figure 3 This is a cross-sectional view of the rod splicing structure of the present invention; Figure 4 This is a schematic diagram of the internal cross-sectional structure of the outer sleeve of the present invention; Figure 5 This is a schematic diagram of the top of the lower rod of the present invention; Figure 6 This is a schematic diagram of the bottom end of the upper rod of the present invention; Figure 7 This is a schematic diagram of the external structure of the connecting ring of the present invention; Figure 8 This is a schematic diagram of the positioning state of the circumferential positioning mechanism of the present invention; Figure 9 This is a schematic diagram of the internal structure of the connecting ring of the present invention; Figure 10 This is a schematic diagram showing the connection state between the adjusting ring and the elastic plate of the present invention; Figure 11 This is a schematic diagram of the calibration and positioning mechanism of the present invention; Figure 12 This is a schematic diagram of the connector structure of the present invention.

[0027] In the diagram: 1. Lower rod; 2. Upper rod; 3. Connecting ring; 4. Elastic plate; 5. Wedge-shaped locking block; 6. Ring groove; 7. Retracting / unloading mechanism; 701. Mounting groove; 702. Adjusting ring; 703. Flat thread; 704. Slide groove; 705. Slide plate; 706. Adjusting hole; 707. Waist-shaped hole; 708. Cover plate; 8. Circumferential positioning mechanism; 801. Triangular guide block; 802. Fixed base; 803. Angled guide groove; 9. Calibration and positioning mechanism; 901. T-shaped fixing block; 902. Limiting ring; 903. Steel wire rope; 904. Positioning rod; 905. Connector; 9051. Hook; 9052. Hanging ring; 9053. Stop; 9054. Spring; 10. Outer sleeve; 11. Stepped groove. Detailed Implementation

[0028] To enable those skilled in the art to more clearly understand the technical solution of the present invention, the present invention will be further described in detail below with reference to embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0029] Example 1: As Figures 1-12 As shown, this embodiment provides a modular assembled cement utility pole, including a lower pole body 1 and an upper pole body 2. A connecting ring 3 is provided between the lower pole body 1 and the upper pole body 2. A circumferential positioning mechanism 8 is provided between the connecting ring 3 and the lower pole body 1 and the upper pole body 2. An axial locking mechanism is provided inside the connecting ring 3. A correction positioning mechanism 9 is provided inside the lower pole body 1 and the upper pole body 2. The circumferential positioning mechanism 8 includes a triangular guide block 801 fixed to the upper and lower end faces of the connecting ring 3, and a fixing seat 802 fixed to the top of the lower rod 1 and the bottom of the upper rod 2 respectively. The fixing seat 802 is provided with an inclined guide groove 803 that cooperates with the triangular guide block 801. The triangular guide block 801 is arranged end to end along the circumference of the connecting ring 3, and the inclined surfaces of the triangular guide block 801 at the upper and lower ends of the connecting ring 3 are set in opposite directions. The axial locking mechanism includes multiple sets of elastic plates 4 arranged circumferentially inside the connecting ring 3. The free end of the elastic plate 4 is fixed with a wedge-shaped locking block 5. The inner walls of the lower rod 1 and the upper rod 2 are provided with annular grooves 6 that are adapted to and engage with the wedge-shaped locking block 5. The calibration and positioning mechanism 9 includes a T-shaped fixing block 901, a limiting ring 902, a steel wire rope 903, a positioning rod 904, and a connector 905. The T-shaped fixing block 901 is fixed to the inner bottom end of the upper rod body 2, the limiting ring 902 is fixed to the inner top end of the lower rod body 1, the top end of the steel wire rope 903 is connected to the T-shaped fixing block 901 through the connector 905, and an outlet hole for the steel wire rope 903 is opened at the top end of the outer side of the lower rod body 1. After the steel wire rope 903 passes through the limiting ring 902, it is led out from the outlet hole on the side wall of the top end of the lower rod body 1 to the outside of the rod. The positioning rod 904 is used to anchor the bottom end of the steel wire rope 903 to the ground.

[0030] During the rod assembly operation, the connecting ring 3 is pre-fitted into the top of the lower rod 1 from top to bottom. The triangular guide block 801 at the lower end of the connecting ring 3 is aligned with the inclined guide groove 803 on the top fixing seat 802 of the lower rod 1 and inserted. The circumferential angle is automatically corrected by the cooperation between the triangular guide block 801 and the inclined surface of the inclined guide groove 803, thus completing the circumferential positioning between the connecting ring 3 and the lower rod 1. At the same time, the elastic plate 4 on the lower inner side of the connecting ring 3 is squeezed inward by the inner wall of the top of the lower rod 1. After the connecting ring 3 is in the set position, the wedge-shaped locking block 5 at the free end of the elastic plate 4 is aligned with the annular groove 6 on the inner wall of the lower rod 1. The elastic plate 4 resets itself using its own elastic force, causing the wedge-shaped locking block 5 to engage inside the ring groove 6, thus completing the axial locking of the connecting ring 3 and the lower rod 1. Then, multiple sets of steel wire ropes 903 are inserted through the top opening of the lower rod 1, guided by the limiting ring 902, and the rope ends are led out from the side outlet holes to the ground. The top of the steel wire rope is left at the top opening of the lower rod 1 for later connection with the upper rod. After that, the lower rod 1 is vertically hoisted into the installation pit, and the positions of the bottom ends of the steel wire ropes 903 are distributed, with the bottom ends of the steel wire ropes 903 on the ground for subsequent pulling. Then, the lower rod 1 is backfilled and fixed.

[0031] Then, the upper pole 2 is hoisted. Before hoisting, the top end of the wire rope 903 of the alignment and positioning mechanism 9 is connected to the T-shaped fixing block 901 at the bottom of the upper pole 2 through the connector 905. After the wire rope 903 is guided by the limiting ring 902 at the top of the lower pole 1, it is led out from the cable outlet hole on the side wall and hangs down to the ground. During the hoisting process, the ground workers pull the bottom end of the wire rope 903 to constrain the hoisting swing amplitude of the upper pole 2 and guide the upper pole 2 to align with the center of the connecting ring 3 in the vertical direction, thereby speeding up the alignment.

[0032] During the descent of the upper rod 2, the inclined guide groove 803 of its bottom fixing seat 802 is inserted into the triangular guide block 801 at the upper end of the connecting ring 3. The inclined guide automatically corrects the circumferential deflection of the upper rod 2, achieving automatic circumferential alignment. As the upper rod 2 continues to fall, the elastic plate 4 on the upper inner side of the connecting ring 3 is squeezed inward by the inner wall of the bottom end of the upper rod 2. After the upper rod 2 is fully in place, the wedge-shaped locking block 5 corresponds to the annular groove 6 on the inner wall of the upper rod 2. The elastic plate 4 rebounds and drives the wedge-shaped locking block 5 to be inserted into the annular groove 6, automatically completing the axial locking of the upper rod 2 and the connecting ring 3. Finally, the circumferential limit and axial fixation of the lower rod 1, the connecting ring 3 and the upper rod 2 are achieved, without the need for bolt tightening or high-altitude tightening operations.

[0033] After assembly, each set of steel wire ropes 903 is evenly tensioned along the circumference of the pole. The bottom end of the steel wire ropes 903 is anchored to the ground outside the pole through the positioning rod 904, forming a multi-directional tension stable structure, which improves the overall wind load resistance and overturning resistance of the utility pole.

[0034] Example 2: The solution in Example 1 will be further described below with reference to its specific working method. See the description below for details: In this embodiment, the connecting ring 3 is provided with a retraction mechanism 7 for driving the elastic plate 4 to retract radially.

[0035] The retraction mechanism 7 is used to control the radial opening and closing state of the elastic plate 4. In the assembled state, the retraction mechanism 7 is in the released position, and the elastic plate 4 relies on its own elasticity to maintain the outward opening state, ensuring that the wedge-shaped locking block 5 is stably locked in the annular groove 6. When disassembly is required, the retraction mechanism 7 drives the elastic plate 4 to retract inward, which can release the axial locking, realize the non-destructive disassembly of the rod and the reuse of the connecting ring 3, and avoid the waste of parts caused by destructive disassembly.

[0036] In this embodiment, the retracting mechanism 7 includes a mounting groove 701 formed on the side wall of the connecting ring 3. An adjusting ring 702 is rotatably mounted in the mounting groove 701. The end face of the adjusting ring 702 is provided with a planar thread 703. The side wall of the connecting ring 3 is provided with multiple sets of sliding grooves 704 in the radial direction. A sliding plate 705 is slidably mounted in the sliding groove 704. The sliding plate 705 is fixedly connected to the elastic plate 4. The sliding plate 705 is provided with a threaded groove that meshes with the planar thread 703. The adjusting ring 702 is provided with adjusting holes 706 evenly formed in the circumferential direction. The connecting ring 3 is provided with a waist-shaped hole 707 that mates with the adjusting hole 706.

[0037] During disassembly, the operator inserts a rod-shaped tool through the waist-shaped hole 707 on the connecting ring 3 and into the adjusting hole 706 on the end face of the adjusting ring 702. This applies force to drive the adjusting ring 702 to rotate circumferentially within the mounting groove 701. During the rotation of the adjusting ring 702, the flat thread 703 on its end face and the threaded groove on the sliding plate 705 form a helical transmission, converting the rotational motion of the adjusting ring 702 into the radial linear displacement of the sliding plate 705. Multiple sets of sliding plates 705 converge synchronously towards the center along the sliding groove 704, thereby pulling the elastic plate 4 to bend and retract inward, causing the wedge-shaped locking block 5 to disengage from the ring groove 6, thus releasing the axial lock. Reverse rotation of the adjusting ring 702 can drive the sliding plate 705 to slide outward, releasing the elastic plate 4 and restoring it to its outward-opening state for the next assembly.

[0038] In this embodiment, the connector 905 includes a hook 9051, a hanging ring 9052, a stop block 9053, and a spring 9054. The hook 9051 is fixed to the bottom end of the T-shaped fixing block 901, the hanging ring 9052 is fixed to the top end of the wire rope 903, the stop block 9053 is hinged to the opening of the hook 9051, and the spring 9054 is disposed between the stop block 9053 and the T-shaped fixing block 901.

[0039] When connecting the wire rope 903 to the T-shaped fixing block 901, align the hanging ring 9052 at the top of the wire rope 903 with the opening of the hook 9051 and push it. The hanging ring 9052 presses against the stop block 9053, overcoming the elastic force of the spring 9054 and rotating inward, thus opening the opening of the hook 9051. After the hanging ring 9052 is inserted into the hook 9051, the spring 9054 pushes the stop block 9053 to reset and close, sealing the opening of the hook 9051 and preventing the hanging ring 9052 from slipping out of the opening. This achieves quick connection while ensuring reliable connection. When disassembling, press the stop block 9053 inward to expose the opening, remove the hanging ring 9052 to complete the separation, making the operation convenient.

[0040] In this embodiment, the cross-section of the triangular guide block 801 is a right triangle. The right-angled surfaces of the triangular guide blocks 801 at the upper and lower ends are respectively attached to the upper and lower end faces of the connecting ring 3. The right-angled surfaces of the triangular guide blocks 801 are attached to the end faces of the connecting ring 3 to ensure installation strength. The inclined surfaces serve as guide surfaces to guide the inclined guide groove 803 to slide in. The inclined surfaces of the triangular guide blocks 801 at the upper and lower ends of the connecting ring 3 are set in opposite directions, so that when the connecting ring 3 is inserted with the lower rod 1 and the upper rod 2, it can be automatically guided and aligned through its respective inclined surfaces. At the same time, the triangular guide blocks 801 are connected end to end to form a continuous toothed structure. After being inserted into place, the straight surfaces of adjacent guide blocks are attached to the side walls of the inclined guide groove 803 to form a reliable circumferential limit and prevent circumferential rotation after the rods are spliced.

[0041] In this embodiment, an outer sleeve 10 is fixedly fitted on the outer side of the connecting ring 3. The two ends of the outer sleeve 10 cover the outer side of the splicing end of the lower rod 1 and the upper rod 2, respectively. The top end of the lower rod 1 and the bottom end of the upper rod 2 are both provided with stepped grooves 11 that cooperate with the outer sleeve 10.

[0042] The outer sleeve 10 is fitted onto the outside of the connecting ring 3, with both ends extending to cover the splicing ends of the lower rod 1 and the upper rod 2. It can cover the splicing gap, prevent rainwater and dust from entering the splicing area, and avoid the internal metal connectors from getting damp and corroding. At the same time, it can form a radial constraint on the splicing area, enhancing the structural strength and bending resistance of the rod splice. The stepped groove 11 is used to provide an installation positioning reference for the outer sleeve 10, so that the outer wall of the outer sleeve 10 and the outer wall of the rod can smoothly transition, avoiding the appearance of raised steps. At the same time, it restricts the axial position of the outer sleeve 10 to prevent it from shifting.

[0043] In this embodiment, the outer sleeve 10 has a through groove that mates with the waist-shaped hole 707 on its outer side, and the outer side of the through groove is covered with a cover plate 708.

[0044] The through groove on the outer sleeve 10 corresponds to the waist-shaped hole 707 on the connecting ring 3, providing an operating channel for the adjustment tool and ensuring that the adjustment ring 702 can still be operated normally to complete the disassembly operation after the outer sleeve 10 is installed; the cover plate 708 covers the outside of the through groove, and in normal conditions, it blocks the through groove, preventing rainwater and mud from entering the internal adjustment structure, and preventing components such as the flat thread 703 and the sliding plate 705 from being stuck by debris, ensuring the reliability of the operation of the retraction mechanism 7. When adjustment is needed, the cover plate 708 can be removed for operation.

[0045] In this embodiment, at least three sets of wire ropes 903 are provided, which are evenly distributed along the circumference of the rod body, and each set of wire ropes 903 is configured with a set of positioning rods 904.

[0046] After assembly, each group of steel wire ropes 903 is tensioned and anchored through positioning pins 904, forming a multi-directional symmetrical tension force system, which effectively offsets wind loads and external force impacts from different directions, significantly improving the overall installation stability and anti-overturning performance of the utility pole.

[0047] In this embodiment, the fixing seat 802 is integrally cast with the lower rod 1 and the upper rod 2, which can ensure the bonding strength between the fixing seat 802 and the rod and prevent the fixing seat 802 from falling off the end of the rod when the assembly is under stress. The fixing seat 802 has protrusions evenly arranged on the outer side and has a casting opening, which can be embedded into the cement matrix during casting to form a mechanical interlocking structure, further increasing the contact area and bonding force between the fixing seat 802 and the rod concrete, improving the pull-out and torsional resistance, and ensuring the structural reliability of circumferential positioning.

[0048] In this embodiment, the guide slope of the wedge-shaped locking block 5 is set towards the direction of the rod splicing and insertion. During the rod insertion process, the inner wall of the rod end slides along the guide slope, which can smoothly squeeze the elastic plate 4 inward and close it without the need for additional force, ensuring a smooth insertion process. The contact surface between the wedge-shaped locking block 5 and the annular groove 6 is a plane. After the locking is in place, the plane fits tightly with the side wall of the annular groove 6, which can form a reliable axial block, preventing the wedge-shaped locking block 5 from slipping out of the annular groove 6 when subjected to axial tension, thus improving the stability of axial locking.

[0049] The solutions in Embodiment 1 and Embodiment 2 will be further described below with reference to their specific working methods. During assembly, the connecting ring 3 is fitted onto the top of the lower rod 1. The triangular guide block 801 at the lower end of the connecting ring 3 is inserted into the inclined guide groove 803 of the fixing seat 802 at the top of the lower rod 1. The circumferential angle is automatically corrected by the inclined surface to complete the circumferential positioning. Simultaneously, the elastic plate 4 at the lower inner side of the connecting ring 3 is squeezed inward by the inner wall of the top of the lower rod 1. After the connecting ring 3 is in the set position, the wedge-shaped locking block 5 is aligned with the annular groove 6 on the inner wall of the lower rod 1. The elastic plate 4 returns to its original position by its own elastic force, which drives the wedge-shaped locking block 5 to be inserted into the annular groove 6, thus completing the axial locking of the connecting ring 3 and the lower rod 1.

[0050] After the pre-assembly of the connecting ring 3 and the lower rod 1 is completed, multiple sets of steel wire ropes 903 are inserted through the opening at the top of the lower rod 1, guided by the limiting ring 902 at the inner top, and the bottom end is led out from the wire outlet hole on the side wall to the ground. Then, the lower rod 1 is vertically hoisted into the installation pit, the verticality of the rod is adjusted, and backfilling is used to fix it. Each set of steel wire ropes 903 is evenly arranged along the circumference of the rod, and the top end is left at the opening at the top of the lower rod 1 for subsequent docking with the upper rod.

[0051] Then, the upper pole 2 is hoisted. Before alignment, the top of the steel wire rope 903, which is placed at the top of the lower pole 1, is connected and fixed to the T-shaped fixing block 901 at the bottom of the upper pole 2 through the connector 905. During the hoisting process, the ground workers pull the bottom of the steel wire rope 903 simultaneously to constrain the hoisting swing amplitude of the upper pole 2 and guide the upper pole 2 to align with the center of the connecting ring 3 in the vertical direction, thereby speeding up the alignment efficiency. During the descent of the upper rod 2, the inclined guide groove 803 of its bottom fixed seat 802 slides along the triangular guide block 801 at the upper end of the connecting ring 3, automatically correcting the circumferential deflection to achieve circumferential alignment. As the upper rod 2 continues to fall, the elastic plate 4 on the upper inner side of the connecting ring 3 is squeezed inward by the rod wall. After the upper rod 2 is fully in place, the wedge-shaped locking block 5 corresponds to the annular groove 6 on the inner wall of the upper rod 2. The elastic plate 4 rebounds and drives the wedge-shaped locking block 5 to engage in the annular groove 6, automatically completing the axial locking of the upper rod 2 and the connecting ring 3. This achieves circumferential limiting and axial fixing of the lower rod 1, the connecting ring 3, and the upper rod 2, without the need for bolt tightening or high-altitude tightening operations.

[0052] After assembly, each set of steel wire ropes 903 is evenly tensioned along the circumference of the pole. The bottom end of the steel wire ropes 903 is anchored to the ground outside the pole through the positioning rod 904 to form a stable structure with multi-directional tension, thus completing the fixation.

[0053] During disassembly, first remove the positioning rod 904 and retract the wire rope 903. After removing the cover plate 708, insert the rod-shaped tool through the through groove and the waist-shaped hole 707 into the adjustment hole 706. Rotate the adjustment ring 702. Through the thread transmission of the flat thread 703 and the sliding plate 705, drive multiple sets of sliding plates 705 to converge towards the center along the sliding groove 704. Pull the elastic plate 4 inward to make the wedge-shaped block 5 disengage from the ring groove 6 to release the axial lock. Lift the upper rod body 2 to complete the separation. Similarly, the connecting ring 3 can be removed to achieve complete recycling and reuse of the connecting ring 3.

[0054] The above description is merely a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A modular, assembled cement utility pole, comprising a lower pole body (1) and an upper pole body (2), characterized in that: A connecting ring (3) is provided between the lower rod (1) and the upper rod (2). A circumferential positioning mechanism (8) is provided between the connecting ring (3) and the lower rod (1) and the upper rod (2). An axial snapping mechanism is provided inside the connecting ring (3). A correction positioning mechanism (9) is provided inside the lower rod (1) and the upper rod (2). The circumferential positioning mechanism (8) includes a triangular guide block (801) fixed to the upper and lower end faces of the connecting ring (3), and a fixed seat (802) fixed to the top of the lower rod (1) and the bottom of the upper rod (2) respectively. The fixed seat (802) is provided with an inclined guide groove (803) that cooperates with the triangular guide block (801). The triangular guide block (801) is arranged end to end along the circumference of the connecting ring (3), and the inclined surfaces of the triangular guide blocks (801) at the upper and lower ends of the connecting ring (3) are set in opposite directions. The axial locking mechanism includes multiple sets of elastic plates (4) arranged circumferentially inside the connecting ring (3). The free end of the elastic plate (4) is fixed with a wedge-shaped locking block (5). The inner walls of the lower rod (1) and the upper rod (2) are provided with annular grooves (6) that are adapted to engage with the wedge-shaped locking block (5). The correction and positioning mechanism (9) is used to pull down and correct the upper pole (2) during hoisting, and to reinforce the pole after assembly.

2. The modular assembled cement utility pole according to claim 1, characterized in that: The calibration and positioning mechanism (9) includes a T-shaped fixing block (901), a limiting ring (902), a steel wire rope (903), a positioning rod (904), and a connector (905). The T-shaped fixing block (901) is fixed to the inner bottom end of the upper rod body (2), the limiting ring (902) is fixed to the inner top end of the lower rod body (1), the top end of the steel wire rope (903) is connected to the T-shaped fixing block (901) through the connector (905), and the top end of the outer side of the lower rod body (1) is provided with an outlet hole for the steel wire rope (903) to pass through. After the steel wire rope (903) passes through the limiting ring (902), it is led out from the outlet hole on the side wall of the top end of the lower rod body (1) to the outside of the rod. The positioning rod (904) is used to anchor the bottom end of the steel wire rope (903) to the ground.

3. The modular assembled cement utility pole according to claim 1, characterized in that: The connecting ring (3) is provided with a retraction mechanism (7) for driving the elastic plate (4) to retract and extend radially. The retraction mechanism (7) includes a mounting groove (701) opened on the side wall of the connecting ring (3). An adjusting ring (702) is rotatably installed in the mounting groove (701). The end face of the adjusting ring (702) is provided with a planar thread (703). The side wall of the connecting ring (3) is provided with multiple sets of sliding grooves (704) in the radial direction. A sliding plate (705) is slidably installed in the sliding groove (704). The sliding plate (705) is fixedly connected to the elastic plate (4). A threaded groove that meshes with the planar thread (703) is opened on the sliding plate (705). An adjusting hole (706) is evenly opened in the circumferential direction on the adjusting ring (702). A waist-shaped hole (707) that mates with the adjusting hole (706) is opened on the connecting ring (3).

4. The modular assembled cement utility pole according to claim 2, characterized in that: The connector (905) includes a hook (9051), a hanging ring (9052), a stop block (9053), and a spring (9054). The hook (9051) is fixed to the bottom end of the T-shaped fixing block (901), the hanging ring (9052) is fixed to the top end of the wire rope (903), the stop block (9053) is hinged to the opening of the hook (9051), and the spring (9054) is located between the stop block (9053) and the T-shaped fixing block (901).

5. The modular assembled cement utility pole according to claim 1, characterized in that: The cross section of the triangular guide block (801) is a right triangle, and the right angle surfaces of the triangular guide blocks (801) at the top and bottom ends are respectively attached to the top and bottom surfaces of the connecting ring (3).

6. The modular assembled cement utility pole according to claim 1 or 3, characterized in that: An outer sleeve (10) is fixed on the outside of the connecting ring (3). The two ends of the outer sleeve (10) cover the outside of the splicing ends of the lower rod (1) and the upper rod (2), respectively. The top of the lower rod (1) and the bottom of the upper rod (2) are provided with stepped grooves (11) that cooperate with the outer sleeve (10).

7. The modular assembled cement utility pole according to claim 6, characterized in that: The outer sleeve (10) has a through groove that matches the waist-shaped hole (707) on its outer side, and the outer side of the through groove is covered with a cover plate (708).

8. The modular assembled cement utility pole according to claim 2, characterized in that: The wire rope (903) is provided in at least three sets, which are evenly distributed along the circumference of the pole. Each set of wire rope (903) is equipped with a set of positioning rods (904).

9. The modular assembled cement utility pole according to claim 1, characterized in that: The fixing seat (802) is integrally cast with the lower rod body (1) and the upper rod body (2). The outer side of the fixing seat (802) is uniformly provided with protrusions and has a casting opening.

10. The modular assembled cement utility pole according to claim 1, characterized in that: The guide slope of the wedge-shaped block (5) is set in the direction of the rod splicing insertion, and the contact surface between the wedge-shaped block (5) and the annular groove (6) is a plane.

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