Steel strand threading pipe storage and taking management device for construction site and using method

Abstract

The application provides a construction site steel strand pipe threading pipe storage and taking management device, which comprises a rotary telescopic storage unit and a movable guide rail unit; the rotary telescopic storage unit comprises a base plate, a rotary cylindrical hollow cylinder frame and extension telescopic rods, each of the extension telescopic rods is provided with a first bolt to realize telescopic locking, and the end is provided with an anti-cut round head; the movable guide rail unit is arranged on the side of the rotary telescopic storage unit and comprises two liftable telescopic rods, two upper and lower smooth round rod guide rails and a movable guide outlet, the liftable telescopic rods are locked through a bolt, and the base is fixed to the hardened ground through a second screw; when the pipe is pulled out, the rotary cylindrical hollow cylinder frame rotates together with the extension telescopic rods, and the movable guide outlet slides along the guide rail, so that the pipe is smoothly pulled out with low friction; the application has the advantages of high space utilization, convenient operation and strong safety protection and is suitable for construction scenes such as anchor cable support and building structure reinforcement.

Description

Technical Field

[0001] This invention relates to the field of auxiliary equipment technology for building construction, and in particular to a device and method for storing and retrieving steel strand conduits on construction sites. Background Technology

[0002] In projects such as anchor cable support and building structure reinforcement, steel strand conduit is a crucial construction material used to protect the steel strands. However, steel strand conduit is typically stored in a simple stacking manner on construction sites, which presents the following problems: First, the stacking is messy and the retrieval efficiency is low: the conduit is usually stored in coils. If it is stacked randomly, it is easy for them to get tangled together, making it difficult to quickly extract the required length of conduit during construction and affecting the construction progress. Moreover, the traditional stacking method lacks classified management. Conduit of different specifications of steel strands is mixed together, which increases the difficulty for construction workers to identify.

[0003] Secondly, there are significant safety hazards: the edges of the steel strand conduit are quite sharp, and construction workers are prone to cutting their hands when pulling or handling it, posing an occupational health risk; moreover, if the conduit is not stacked stably, it may roll off, causing personnel to be bumped or materials to be damaged.

[0004] Third, low space utilization and inconvenient handling: construction site space is limited, and traditional stacking methods occupy a large area, which is not conducive to the arrangement of other construction equipment; when it is necessary to move or adjust the storage position, the scattered steel strand conduit is difficult to quickly organize, increasing the cost of manual handling.

[0005] Currently, some construction sites are trying to use simple supports or fixed storage racks to improve the management of steel strand conduits, but the following shortcomings still exist: Fixed supports are not adjustable and cannot accommodate steel strands of different diameters, making it easy for large-diameter pipes to fall off the supports. Although there are records of telescopic steel strand storage racks in the existing technology, their structure is a two-way adjustment groove structure with the first and second supports connected by a limiting rod, which lacks rotation function and guiding structure.

[0006] Without a guiding structure, manual adjustment of the angle is still required when extracting the steel strand into the conduit, which is laborious and can easily lead to the twisting and deformation of the conduit. Although there are steel strand storage and retrieval devices with guiding structures in the existing technology, their guiding structures are only fixed rings and bent round steel, which cannot be moved or adjusted in height.

[0007] Poor portability; most supports are fixed structures, making them difficult to assemble and transport quickly, and unable to adapt to dynamically changing construction needs.

[0008] Therefore, there is a need for a detachable, adjustable, safe, convenient, and guiding device for storing and retrieving steel strand conduits, in order to improve construction efficiency, reduce safety risks, and optimize on-site space management. Summary of the Invention

[0009] To address the problems of messy stacking, inconvenient access, and safety hazards of steel strand conduits at construction sites, this invention provides a device for the storage and retrieval of steel strand conduits at construction sites. This device not only has high space utilization, convenient operation, and strong safety protection, but also effectively solves the above problems.

[0010] This invention is implemented as follows: The construction site's steel strand conduit storage and retrieval management device includes: A rotating telescopic storage unit includes a base, a rotating cylindrical hollow frame, and multiple radially distributed extension telescopic rods. The rotating cylindrical hollow frame is vertically fixed to the center of the base via a rotating shaft and secured with a first screw to provide overall rotational support. The multiple extension telescopic rods are located on the outer periphery of the rotating cylindrical hollow frame, each equipped with a first pin for telescopic locking, and each extension telescopic rod has a cut-resistant round end. A movable guide rail unit is disposed on the side of the rotary telescopic storage unit. The movable guide rail unit includes at least two liftable telescopic rods, at least two upper and lower round rod guide rails connected between the liftable telescopic rods, a movable outlet disposed on the round rod guide rails and slidable along the round rod guide rails, and a base disposed at the end of the liftable telescopic rod away from the round rod guide rails. Each base corresponds to one liftable telescopic rod, and each liftable telescopic rod is provided with at least one second pin. The movable guide rail unit fixes the base to the hardened ground by a second screw and locks the liftable telescopic rods in extension and retraction by the second pins.

[0011] As a further improvement, the rotating cylindrical hollow tube frame includes an upper disk, a lower disk, and uprights connecting the upper disk and the lower disk. The upper disk includes an upper circular rod and multiple upper short rods of fixed length extending radially from the top of the rotating shaft to the upper circular rod. The lower disk includes a lower circular rod and multiple lower short rods of fixed length extending radially from the bottom of the rotating shaft to the lower circular rod. The upper circular rod and the lower circular rod have the same circumference, and the upper short rods and the lower short rods have the same length. The number of upper short rods, lower short rods, and uprights are the same and correspond to each other.

[0012] As a further improvement, the lower disk also includes a lower outer ring rod and a lower outer rod connecting the lower ring rod and the lower outer ring rod. The lower outer rod extends from the lower short rod to the lower outer ring rod to form a coaxial fixed connection. The length of the lower outer rod is fixed and together with the lower outer ring rod forms the main support platform for the conduit. The number of extension telescopic rods is the same as the number of the lower outer rod and the lower short rod, and the extension telescopic rods extend outward from the end of the lower outer rod.

[0013] As a further improvement, the anti-cut round head is configured as a hemispherical structure or an arc-shaped structure, and the anti-cut round head is located at the end of each of the extension telescopic rods.

[0014] As a further improvement, the movable outlet is configured as a ring structure or a tubular structure, and the round rod guide rails are configured as two rods spaced apart, with their outer surfaces being smooth surfaces; the movable outlet is sleeved between the two round rod guide rails, and the inner wall of the movable outlet is configured as a smooth surface.

[0015] As a further improvement, at least two of the round rod guide rails are arranged parallel to each other, and the movable outlet is slidably engaged with the round rod guide rails via a slider or roller to achieve free reciprocating sliding along the length direction of the round rod guide rails.

[0016] As a further improvement, the liftable telescopic rod is provided with a plurality of pin holes distributed along the length direction of the liftable telescopic rod, and the second pin passes through the pin holes to lock the liftable telescopic rod at different height positions.

[0017] As a further improvement, both the chassis and the base are configured as circular or rectangular flat plate structures, and the chassis and the base are respectively provided with mounting holes for the first screw and the second screw to pass through, for fixing the chassis and the base to the hardened ground.

[0018] As a further improvement, both the rotary telescopic storage unit and the movable guide rail unit are configured as detachable modular structures, and the components are assembled and disassembled through threaded connections or plug-in structures.

[0019] The method for using the steel strand conduit storage and retrieval management device at the construction site, employing the aforementioned management device, includes the following steps: S1, the rotating cylindrical hollow frame of the rotating telescopic storage unit is vertically fixed to the center of the chassis via a rotating shaft, ensuring that the rotating shaft is perpendicular to the chassis, and the chassis is fixed to the hardened ground with the first screw; the extension length of the extension rod is adjusted to the required storage radius, ensuring that each extension rod is evenly distributed, and locked with the first pin; S2, place the movable guide rail unit on the side of the rotating telescopic storage unit, fix the two liftable telescopic rods perpendicular to the base and to the hardened ground with the second screw, lock the height position of the liftable telescopic rods with the second pin, install at least two upper and lower round rod guide rails between at least two liftable telescopic rods, and assemble the movable outlet between at least two round rod guide rails. S3, the steel strand conduit is coiled and placed on the main support platform of the conduit in the rotary telescopic storage unit, and the steel strand conduit is supported from the inside by multiple radially distributed extension telescopic rods. S4. Pass the free end of the steel strand conduit through the movable outlet and pull the steel strand conduit outward. Rotate the cylindrical hollow frame together with multiple radially distributed extension rods. At the same time, the movable outlet slides along the round rod guide rail to adapt to the change in the pulling direction, so as to realize the smooth extraction of the steel strand conduit with low friction.

[0020] The beneficial effects of this invention are: 1) Provides highly efficient, convenient, and safe storage and retrieval functions: Through the cooperation of the rotating telescopic storage unit and the movable guide rail unit, the problems of messy stacking of steel strand conduits, prominent safety hazards, and low space utilization are solved, thereby improving space utilization, operation convenience, and strong safety protection.

[0021] 2) Comprehensive optimization of traditional equipment: The centrally radiating adjustable telescopic rod can flexibly adjust the storage space according to the steel strand conduit of different diameters, ensuring the conduit is stored stably; the anti-cut round head can ensure operational safety; the liftable and movable guide rail unit can realize low-friction smooth extraction of steel strand conduit, greatly improving work efficiency; the whole adopts a modular, telescopic and detachable design, which not only meets the stability requirements during use, but also facilitates storage and assembly, perfectly adapting to the dynamic needs of the construction site. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of the telescopic rod pin according to an embodiment of the present invention.

[0025] Figure 3 This is a schematic diagram of the structure of the rotary telescopic storage unit according to an embodiment of the present invention.

[0026] Figure 4 This is a schematic diagram of the structure of the movable guide rail unit according to an embodiment of the present invention.

[0027] Figure 5 This is a schematic diagram of the structure of a movable guide rail unit according to another embodiment of the present invention.

[0028] In the picture: 1. Rotating telescopic storage unit; 11. Base; 12. Rotating cylindrical hollow frame; 121. Upper disc; 1211. Upper rod; 1212. Upper short rod; 122. Lower disc; 1221. Lower rod; 1222. Lower short rod; 1223. Lower outer rod; 1224. Lower outer rod; 123. Upright pole; 124. Main support platform for conduit; 13. Extension telescopic rod; 131. First pin; 132. Cut-resistant round head; 14. Rotating shaft; 15. First screw; 2. Movable guide rail unit; 21. Liftable telescopic rod; 22. Round rod guide rail; 23. Movable outlet; 231. Ball bearing; 24. Base; 25. Second pin; 26. Second screw. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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 a part of the embodiments of the present invention, not all of them. 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. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. 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.

[0030] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] Reference Figures 1-5As shown, a steel strand conduit storage and retrieval management device for construction sites includes a rotary telescopic storage unit 1 and a movable guide rail unit 2. The movable guide rail unit 2 is disposed on the side of the rotary telescopic storage unit 1. The steel strand conduit is coiled on the rotary telescopic storage unit 1, and the free end of the steel strand conduit passes through the movable guide rail unit 2 to realize the extraction of the steel strand conduit.

[0032] The rotating telescopic storage unit 1 includes a chassis 11, a rotating cylindrical hollow frame 12, and multiple radially distributed extension telescopic rods 13. In this embodiment, there are eight extension telescopic rods 13.

[0033] Specifically, the rotating cylindrical hollow frame 12 is vertically fixed to the center of the chassis 11 via a rotating shaft 14, ensuring that its axis is perpendicular to the chassis 11. The chassis 11 is configured as a circular or rectangular flat plate structure, with mounting holes for the first screw 15 to pass through. The chassis 11 is fixed to the hardened ground by the first screw 15, providing stable bottom support for the entire rotating telescopic storage unit 1.

[0034] Specifically, the rotating cylindrical hollow frame 12 includes an upper disk 121, a lower disk 122, and a vertical rod 123 connecting the upper disk 121 and the lower disk 122. Further, the upper disk 121 is provided with eight upper short rods 1212 of fixed length extending radially from the top of the rotation axis 14, and an upper round rod 1211 is connected and wound around the eight upper short rods 1212 at the end away from the rotation axis 14. The lower disc 122 is provided with eight fixed-length lower short rods 1222 extending radially from the bottom of the rotation shaft 14. A lower round rod 1221 is connected and wound around the eight lower short rods 1222 at the ends away from the rotation shaft 14. The length of the lower short rods 1222 is the same as that of the upper short rods 1212. The number of upper short rods 1212, lower short rods 1222, and upright rods 123 is the same and they are correspondingly arranged. The number of upper short rods 1212, lower short rods 1222, and upright rods 123 is the same as that of the extension telescopic rods 13, which is set to eight. The upper disc 121, the lower disc 122, and the upright rods 123 together constitute the main structure of the rotating cylindrical hollow frame 12. Of course, in other embodiments, the number of upper short rods 1212, lower short rods 1222, upright rods 123 and extension telescopic rods 13 can be set to six, ten, twelve, etc., as long as the structure of the rotating cylindrical hollow frame 12 is strong enough.

[0035] The lower disc 122 extends outwards with eight lower outer rods 1224, each corresponding to a lower short rod 1222. Further, a lower outer ring rod 1223 is connected and wound around one end of each of the eight lower outer rods 1224 away from the lower short rods 1222. The eight lower outer rods 1224 and the eight lower short rods 1222 are coaxially and fixedly connected, with a fixed length. The eight lower outer rods 1224 and the lower outer ring rod 1223 together form the main support platform 124 for the wire guide tube. This main support platform 124 is used to support the weight of the coiled steel strand wire guide tube.

[0036] Eight radially distributed extension telescopic rods 13 extend outward from the ends of the eight lower outer rods 1224. Each extension telescopic rod 13 is configured with a multi-section, interlocking telescopic structure, allowing the telescopic length to be adjusted to the required storage radius as needed. After adjustment, ensuring that each extension telescopic rod 13 is evenly distributed, the telescopic rods are locked in place by passing the first pin 131 through the positioning hole on the extension telescopic rod 13. Each extension telescopic rod 13 has a cut-resistant round head 132 at its end. This cut-resistant round head 132 is a hemispherical or arc-shaped smooth structure used to prevent the steel strand conduit from being cut by the end of the rod during handling, ensuring operational safety.

[0037] The movable guide rail unit 2 is placed on the side of the rotating telescopic storage unit 1, which can better facilitate the smooth and low-friction extraction of the steel strand conduit in the direction of pulling.

[0038] The movable guide rail unit 2 includes at least two liftable telescopic rods 21, at least two smooth round rod guide rails 22 connected between the liftable telescopic rods 21, a movable outlet 23 movable on the round rod guide rails 22, and a base 24 disposed at the end of the liftable telescopic rod 21 away from the round rod guide rails 22. Each liftable telescopic rod 21 is perpendicular to a base 24, and each liftable telescopic rod 21 is provided with at least one second pin 25. Furthermore, the base 24 is a circular or rectangular flat plate structure with mounting holes for second screws 26 to pass through, thereby fixing the base 24 to a hardened surface. The liftable telescopic rods 21 are provided with multiple pin holes distributed along the length direction of the liftable telescopic rods 21, and the second pins 25 pass through the pin holes to lock the telescopic rods at different height positions. In this embodiment, two liftable telescopic rods 21 are provided, and the two liftable telescopic rods 21 are parallel and spaced apart; two round rod guide rails 22 are provided, and the two round rod guide rails 22 are parallel and spaced apart.

[0039] Specifically, two parallel and smooth round rod guide rails 22 are installed between the two liftable telescopic rods 21, with the two round rod guide rails 22 arranged parallel to each other. The height of the round rod guide rails 22 can be adjusted by adjusting the liftable telescopic rods 21 to accommodate the needs of using conduits for steel strands of different specifications.

[0040] refer to Figure 4 As shown, a movable outlet 23 is assembled between two round rod guide rails 22. This movable outlet 23 is configured as an annular or tubular structure and is fitted between the two smooth round rod guide rails 22. The movable outlet 23 slides against the round rod guide rails 22 via a slider or roller to achieve free reciprocating sliding along the guide rail direction. The inner wall of the movable outlet 23 is configured as a smooth surface to reduce frictional resistance during the extraction of the steel strand conduit. In another embodiment, refer to... Figure 5 As shown, the inner wall of the movable outlet 23 is also embedded with multiple movable balls 231, and the balls 231 protrude from the inner wall surface of the movable outlet 23. The surface of the balls 231 is set to a smooth surface. When the steel strand conduit passes through the movable outlet 23, the multiple balls 231 will roll, thereby reducing the frictional resistance during the extraction of the steel strand conduit. During the extraction of the steel strand conduit, the movable outlet 23 can slide back and forth along the round rod guide rail 22 to accommodate free extraction.

[0041] The method for using the steel strand conduit storage and retrieval management device at the construction site includes the following specific steps: S1, the rotating cylindrical hollow frame 12 of the rotating telescopic storage unit 1 is vertically fixed to the center of the chassis 11 via the axis, ensuring that the axis is perpendicular to the chassis 11, and the chassis 11 is fixed to the hardened ground by the first screw 15; the telescopic length of the eight radially distributed extension telescopic rods 13 is adjusted to the required storage radius, ensuring that each extension telescopic rod 13 is evenly distributed, and locked by the first pin 131.

[0042] S2, place the movable guide rail unit 2 on the side of the rotating telescopic storage unit 1, fix the two liftable telescopic rods 21 perpendicular to the base 24 and fix them to the hardened ground with the second screw 26, lock the height position of the liftable telescopic rods 21 with the second pin 25, install two smooth round rod guide rails 22 between the two liftable telescopic rods 21, and assemble the movable outlet 23 between the two round rod guide rails 22.

[0043] S3, the steel strand conduit is coiled and placed on the main support platform 124 of the rotating telescopic storage unit 1, and the steel strand conduit is supported from the inside by eight radially distributed extension telescopic rods 13.

[0044] S4. Pass the free end of the steel strand conduit through the movable outlet 23 and pull the steel strand conduit outward. Rotate the cylindrical hollow frame 12 together with the eight radially distributed extension telescopic rods 13. At the same time, the movable outlet 23 slides along the round rod guide rail 22 to adapt to the change in the pulling direction, so as to achieve smooth extraction of the steel strand conduit with low friction.

[0045] The device will be further described below through specific embodiments.

[0046] Example 1: In a certain anchor cable support construction project, a large number of 800mm diameter steel strand conduit coils need to be stored. Construction workers fix the base 11 of the rotating telescopic storage unit 1 to the hardened ground using the first screw 15. Then, the eight radially distributed extension telescopic rods 13 are stretched outwards to a storage radius of 450mm. After ensuring that the extension telescopic rods 13 are evenly distributed, they are locked using the first pin 131. The steel strand conduit coils are then hoisted and placed on the main conduit support platform 124, with the eight extension telescopic rods 13 providing even support to the coils from the inside.

[0047] Place the movable guide rail unit 2 approximately 1m to the side of the rotating telescopic storage unit 1, and fix the base 24 to the hardened ground using the second screw 26. Adjust the height of the adjustable telescopic rod 21 to approximately 1.2m above the ground and lock it using the second pin 25. Install two smooth round rod guide rails 22 between the two adjustable telescopic rods 21, and install a movable outlet 23 between the round rod guide rails 22.

[0048] The free end of the steel strand conduit is passed through the movable outlet 23, and the worker pulls the conduit outward. During the pulling process, the rotating cylindrical hollow frame 12 rotates together with the extension rod 13, releasing the conduit; simultaneously, the movable outlet 23 slides along the circular rod guide rail 22, automatically adapting to changes in the pulling angle, achieving a smooth, low-friction extraction operation. The entire process requires no manual adjustment of the conduit angle, significantly improving construction efficiency.

[0049] Example 2: In a building structure reinforcement project, it was necessary to store large steel strand conduit coils with a diameter of 1200mm. Construction workers installed the device following the same steps, but adjusted the extension length of the telescopic rod 13 to a storage radius of 650mm, and adjusted the height of the adjustable telescopic rod 21 to approximately 1.5m above the ground to accommodate larger diameter coils. Through simple extension and retraction adjustments, the same device can accommodate the storage and retrieval of conduits of different specifications, fully demonstrating the versatility and flexibility of this device.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A device for storing and retrieving steel strand conduits at construction sites, characterized in that, include: A rotating telescopic storage unit (1) includes a chassis (11), a rotating cylindrical hollow frame (12), and multiple radially distributed extension telescopic rods (13). The rotating cylindrical hollow frame (12) is vertically fixed to the center of the chassis (11) via a rotating shaft (14) and secured with a first screw (15) to provide overall rotational support. Multiple extension telescopic rods (13) are arranged on the outer periphery of the rotating cylindrical hollow frame (12), each extension telescopic rod (13) is equipped with a first pin (131) for telescopic locking, and each extension telescopic rod (13) has a cut-resistant round head (132) at its end. A movable guide rail unit (2) is disposed on the side of the rotary telescopic storage unit (1). The movable guide rail unit (2) includes at least two liftable telescopic rods (21), at least two upper and lower round rod guide rails (22) connected between the liftable telescopic rods (21), a movable outlet (23) disposed on the round rod guide rails (22) and slidable along the round rod guide rails (22), and a base (24) disposed at one end of the liftable telescopic rod (21) away from the round rod guide rails (22). Each base (24) corresponds to one liftable telescopic rod (21), and each liftable telescopic rod (21) is provided with at least one second pin (25). The movable guide rail unit (2) fixes the base (24) to the hardened ground by a second screw (26) and realizes the extension and retraction locking of the liftable telescopic rod (21) by the second pin (25).

2. The steel strand conduit storage and retrieval management device for construction sites according to claim 1, characterized in that, The rotating cylindrical hollow frame (12) includes an upper disk (121), a lower disk (122), and a vertical rod (123) connecting the upper disk (121) and the lower disk (122). The upper disk (121) includes an upper cylindrical rod (1211) and multiple upper short rods (1212) of fixed length extending radially from the top of the rotating shaft (14) to the upper cylindrical rod (1211). The lower disk (122) includes a lower... The upper round rod (1221) and the lower round rod (1222) extend radially from the bottom of the rotating shaft (14) to the lower round rod (1221) with a fixed length. The upper round rod (1211) and the lower round rod (1221) have the same circumference. The upper short rod (1212) and the lower short rod (1222) have the same length. The number of the upper short rod (1212), the lower short rod (1222) and the upright rod (123) are the same and correspond to each other.

3. The steel strand conduit storage and retrieval management device for construction sites according to claim 2, characterized in that, The lower disc (122) also includes a lower outer ring rod (1223) and a lower outer rod (1224) connecting the lower ring rod (1221) and the lower outer ring rod (1223). The lower outer rod (1224) extends from the lower short rod (1222) to the lower outer ring rod (1223) to form a coaxial fixed connection. The length of the lower outer rod (1224) is fixed and together with the lower outer ring rod (1223) forms the main support platform (124) for the conduit. The number of extension telescopic rods (13) is the same as the number of the lower outer rod (1224) and the lower short rod (1222). The extension telescopic rods (13) extend outward from the end of the lower outer rod (1224).

4. The steel strand conduit storage and retrieval management device for construction sites according to claim 1, characterized in that, The anti-cut round head (132) is configured as a hemispherical structure or an arc-shaped structure, and the anti-cut round head (132) is located at the end of each of the extension telescopic rods (13).

5. The device for storing and retrieving steel strand conduits at construction sites according to claim 1, characterized in that, The movable outlet (23) is configured as a ring structure or a tubular structure, and the round rod guide rail (22) is configured as two rods spaced apart, with their outer surfaces being smooth surfaces; the movable outlet (23) is sleeved between the two round rod guide rails (22), and the inner wall of the movable outlet (23) is configured as a smooth surface.

6. The device for storing and retrieving steel strand conduits at construction sites according to claim 1, characterized in that, At least two of the round rod guide rails (22) are arranged parallel to each other, and the movable outlet (23) slides with the round rod guide rails (22) through a slider or roller to achieve free reciprocating sliding along the length direction of the round rod guide rails (22).

7. The steel strand conduit storage and retrieval management device for construction sites according to claim 1, characterized in that, The liftable telescopic rod (21) is provided with a plurality of pin holes distributed along the length direction of the liftable telescopic rod (21), and the second pin (25) passes through the pin holes to lock the liftable telescopic rod (21) at different height positions.

8. The device for storing and retrieving steel strand conduits at construction sites according to claim 1, characterized in that, The chassis (11) and the base (24) are both configured as circular or rectangular flat plate structures. The chassis (11) and the base (24) are respectively provided with mounting holes for the first screw (15) and the second screw (26) to pass through, for fixing the chassis (11) and the base (24) to the hardened ground.

9. The device for storing and retrieving steel strand conduits at construction sites according to any one of claims 1 to 8, characterized in that, Both the rotary telescopic storage unit (1) and the movable guide rail unit (2) are configured as detachable modular structures, and the components are assembled and disassembled through threaded connections or plug-in structures.

10. A method for using a management device for storing and retrieving steel strand conduits at a construction site, characterized in that... The management device according to claim 9 includes the following steps: S1, the rotating cylindrical hollow frame (12) of the rotating telescopic storage unit (1) is vertically fixed to the center of the chassis (11) via the rotating shaft (14), ensuring that the rotating shaft (14) is perpendicular to the chassis (11), and the chassis (11) is fixed to the hardened ground by the first screw (15); the extension length of the extension rod (13) is adjusted to the required storage radius, ensuring that each extension rod (13) is evenly distributed, and locked by the first pin (131); S2, place the movable guide rail unit (2) on the side of the rotating telescopic storage unit (1), fix the two liftable telescopic rods (21) perpendicular to the base (24) and fix them to the hardened ground with the second screw (26), lock the height position of the liftable telescopic rods (21) with the second pin (25), install at least two upper and lower round rod guide rails (22) between at least two liftable telescopic rods (21), and assemble the movable outlet (23) between at least two round rod guide rails (22). S3, the steel strand conduit is coiled and placed on the main support platform (124) of the conduit in the rotary telescopic storage unit (1), and the steel strand conduit is supported from the inside by multiple radially distributed extension telescopic rods (13). S4, pass the free end of the steel strand conduit through the movable outlet (23), pull the steel strand conduit outward, rotate the cylindrical hollow frame (12) together with the multiple radially distributed extension telescopic rods (13), and at the same time, the movable outlet (23) slides along the round rod guide rail (22) to adapt to the change in the pulling direction, so as to realize the low friction smooth extraction of the steel strand conduit.

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