Reinforcement cage sinking prevention device for photovoltaic cast-in-place pile pouring and use method of reinforcement cage sinking prevention device

Abstract

The reinforcement cage sinking prevention device comprises a frame, a clamping mechanism and a slow descending mechanism, the frame is of a rectangular center structure, circular positioning holes are formed in the upper end and the lower end of the frame, and a reinforcement cage with the diameter smaller than that of the positioning holes is inserted into the frame; the clamping mechanism comprises ejector rods transversely inserted into the two ends of the frame in a sliding mode, arc-shaped clamping blocks are arranged at the ends, located in the frame, of the ejector rods, and the bottom end of the cable is connected with a bracket penetrating through the frame in a sliding mode and abutting against the bottom end of the reinforcement cage. The slow descending mechanism comprises sliding columns symmetrically inserted into the two sides of the frame in a sliding mode. According to the clamping mechanism, the motor is adopted for driving the gear strip to conduct transmission, transverse clamping of the arc-shaped clamping blocks on the reinforcement cage is achieved, three-dimensional fixing is formed in cooperation with bottom supporting of the bracket, and the stability of the reinforcement cage is remarkably improved. The slow descending mechanism realizes accurate guiding and speed control in the descending process of the reinforcement cage by utilizing rolling contact of a guide wheel and the reinforcement cage and combining adjustable friction force of a friction plate, and inclination and rapid sinking are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic project construction, and particularly relates to an anti-sinking device for a steel reinforcement cage during the pouring of a photovoltaic cast-in-place pile and a using method thereof. Background Art

[0002] As an important basic structure for supporting photovoltaic modules, the construction quality of photovoltaic cast-in-place piles is directly related to the stability and power generation efficiency of the entire photovoltaic power generation system. During the construction process of cast-in-place piles, the accurate positioning and stable placement of the steel reinforcement cage are the key links to ensure the quality of the pile foundation. There are many problems with the traditional installation method of the steel reinforcement cage for photovoltaic cast-in-place piles. On the one hand, during the process of lowering the steel reinforcement cage into the pile hole, due to the lack of effective guiding and slow-down measures, the steel reinforcement cage is extremely prone to tilt, resulting in its inability to accurately locate at the center of the pile hole. This not only affects the structural strength of the cast-in-place pile but may also cause deviations in the subsequent installation of photovoltaic modules, reducing the overall efficiency of photovoltaic power generation. On the other hand, when performing concrete pouring operations, the impact force and flowing pressure of the concrete are likely to exert a downward force on the steel reinforcement cage. Without a reliable anti-sinking device, the steel reinforcement cage is very likely to sink, thereby changing the effective reinforcement depth of the cast-in-place pile and seriously affecting the bearing capacity and durability of the pile foundation.

[0003] Some existing anti-sinking devices for steel reinforcement cages have overly simple structures and can only provide fixation or support in a single direction, unable to fully meet the requirements for the stability of the steel reinforcement cage in complex construction environments; while others have complex structures but are cumbersome to operate, requiring a large amount of manpower and time for installation and debugging, which undoubtedly increases the construction cost and reduces the construction efficiency, making it difficult to meet the needs of rapid construction in modern photovoltaic projects. In addition, under different geological conditions and construction site conditions, the existing devices lack sufficient adaptability. For example, at a construction site with uneven ground, it is difficult for the device to quickly adjust to a stable state, affecting its fixation effect on the steel reinforcement cage. Therefore, developing a device with a reasonable structure, simple operation, strong adaptability, and capable of effectively preventing the steel reinforcement cage from sinking has become an urgent problem to be solved in the field of photovoltaic cast-in-place pile construction. Summary of the Invention

[0004] The purpose of the present invention is to provide an anti-sinking device for a steel reinforcement cage during the pouring of a photovoltaic cast-in-place pile and a using method thereof to solve the problem in the prior art that the steel reinforcement cage is prone to sink during pouring, affecting the construction quality. Through this device, the steel reinforcement cage can be reliably fixed to prevent it from sinking, while the operation is simple, improving the construction efficiency and quality.

[0005] According to an object of the present invention, the present invention provides a device for preventing the reinforcement cage from sinking during the pouring of photovoltaic cast-in-place piles, which includes a frame, a clamping mechanism, and a slow-down mechanism. The frame is a rectangular central structure, and circular positioning holes are provided at both the upper and lower ends. A reinforcement cage with a diameter smaller than the positioning hole is inserted inside the frame. The clamping mechanism includes ejector rods that are horizontally slidably inserted at both ends of the frame. An arc-shaped clamping block is provided at one end of the ejector rod inside the frame. A tooth portion is provided at the top of the end of the ejector rod away from the arc-shaped clamping block. The tooth portion meshes with a gear. A rotating shaft is inserted through the center of the gear. One end of the rotating shaft is connected to a motor, and a worm is coaxially provided at the other end. The worm meshes with a worm gear. A rotating rod is inserted through the center of the worm gear. A reel is coaxially sleeved on the outer peripheral surface of the rotating rod. A cable is wound around the reel. The bottom end of the cable is connected to a bracket that slidably penetrates the frame and abuts against the bottom end of the reinforcement cage. The end of the bracket is hinged to a hinge bracket fixed to the side wall of the frame. The slow-down mechanism includes sliding columns symmetrically inserted on both sides of the frame. The end of the sliding column is slidably inserted with a telescopic column. An installation seat with a guide wheel is provided at the end of the telescopic column away from the sliding column. The guide wheel rolls and abuts against the outer side wall of the reinforcement cage. An extrusion seat with a friction plate at the end is slidably connected to the inner wall of the sliding column. The friction plate abuts against the outer peripheral surface of the guide wheel. An adjustment component is provided at the end of the sliding column away from the guide wheel. The adjustment component includes a connecting rod provided at the end of the sliding column away from the guide wheel. The connecting rod is threadedly inserted with an adjustment screw rod rotatably installed on the side wall of the frame. A hand wheel is coaxially provided at the end of the adjustment screw rod. A spring is provided between the extrusion seat and the connecting rod.

[0006] Further, a top spring is sleeved outside the telescopic column, and the top spring is used to push the guide wheel to abut against the outer side wall of the reinforcement cage.

[0007] Further, a guide cylinder fixed to the outer wall of the frame is slidably sleeved outside the cable.

[0008] Further, adjustable support legs are provided at the four corners of the bottom of the frame.

[0009] Further, the sum of the clamping force of the clamping mechanism on the reinforcement cage and the frictional force of the slow-down mechanism on the reinforcement cage is greater than or equal to the maximum sinking force received by the reinforcement cage during the pouring process.

[0010] Further, key connections are provided between the motor and the rotating shaft, between the rotating shaft and the gear, and between the rotating shaft and the worm.

[0011] Further, the radian of the arc-shaped clamping block is adapted to the outer peripheral surface of the reinforcement cage.

[0012] Further, an anti-slip protrusion is provided at one end of the bracket inside the frame.

[0013] According to another object of the present invention, the present invention provides a method for using the device for preventing the steel reinforcement cage from sinking during the casting of the photovoltaic cast-in-place pile, including the following steps: S1. Adjust the frame to make the frame in a horizontal and stable state; S2. Insert the steel reinforcement cage into the circular positioning holes at the upper and lower ends of the frame; S3. Start the motor to drive the rotation of the rotating shaft. Through the meshing of the gear and the tooth part, the ejector rod slides horizontally, driving the arc-shaped clamping block to clamp the outside of the steel reinforcement cage; S4. The rotating shaft drives the worm to rotate. Through the worm gear and the rotating rod, the winch winds the cable, pulling the bracket up to abut against the bottom end of the steel reinforcement cage; S5. The guide wheel rolls and abuts against the outer side wall of the steel reinforcement cage to achieve guiding and straightening; S6. Rotate the handwheel, adjust the position of the extrusion seat through the adjusting screw, the connecting rod and the spring, control the pressure between the friction plate and the guide wheel, and further adjust the lowering speed of the steel reinforcement cage; S7. During the concrete pouring process, prevent the steel reinforcement cage from sinking through the combined action of the clamping mechanism and the slow-down mechanism.

[0014] Further, in S3, the arc-shaped clamping block forms a uniform clamping force on the steel reinforcement cage in the horizontal direction to prevent horizontal displacement; in S7, the clamping mechanism and the slow-down mechanism continue to work until the concrete pouring is completed and reaches the strength.

[0015] The technical solution of the present invention effectively solves the problem of the sinking of the steel reinforcement cage in the prior art. The clamping mechanism adopts a motor-driven rack and pinion transmission to realize the lateral clamping of the arc-shaped clamping block on the steel reinforcement cage. Combined with the bottom support of the bracket, a three-dimensional solid fixation is formed, significantly improving the stability of the steel reinforcement cage. The slow-down mechanism uses the rolling contact between the guide wheel and the steel reinforcement cage, combined with the adjustable friction force of the friction plate, to achieve precise guiding and speed control during the lowering process of the steel reinforcement cage, avoiding tilting and rapid sinking. The device has a compact structure and simple operation, can greatly improve the construction quality and efficiency of the photovoltaic cast-in-place pile, and reduce the labor cost and safety risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the present invention; Figure 2 It is a schematic side view structure diagram of the outside of the frame of an embodiment of the present invention; Figure 3 Schematic side view of the internal structure of the framework of the embodiment of the present invention; Figure 4 Schematic top view of the internal structure of the framework of the embodiment of the present invention; Figure 5 Schematic diagram of the descent mechanism of the embodiment of the present invention; Figure 6 For the embodiment of the present invention Figure 1 Schematic enlarged view of the partial structure at position A; Figure 7 For the embodiment of the present invention Figure 1 Schematic enlarged view of the partial structure at position B.

[0018] In the figure: 1, framework; 2, steel reinforcement cage; 3, adjustable support leg; 4, motor; 5, rotating shaft; 6, gear; 7, ejector rod; 8, tooth part; 9, arc-shaped clamping block; 10, worm; 11, worm gear; 12, rotating rod; 13, reel; 14, cable; 15, guide cylinder; 16, bracket; 17, articulated frame; 18, sliding column; 19, telescopic column; 20, top spring; 21, mounting seat; 22, guide wheel; 23, extrusion seat; 24, spring; 25, friction plate; 26, connecting rod; 27, adjusting screw; 28, hand wheel. Detailed implementation manners

[0019] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0021] In addition, 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 quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined. In addition, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Embodiment 1 As Figures 1-7 shown, an anti-sinking device for the steel reinforcement cage during the casting of a photovoltaic cast-in-place pile includes a frame 1, a clamping mechanism and a descending speed reducing mechanism, wherein: the frame 1 is a rectangular central structure and circular positioning holes are provided at both the upper and lower ends. A steel reinforcement cage 2 is inserted inside the frame 1, and the diameter of the steel reinforcement cage 2 is smaller than the diameter of the positioning holes. As Figure 4 , Figure 6 and Figure 7 shown, the clamping mechanism includes ejector rods 7 that are horizontally slidably inserted at both ends of the frame 1. Arc-shaped clamping blocks 9 are provided at one end of the ejector rods 7 inside the frame 1, and the arc-shaped clamping blocks 9 are all in contact with the outer side of the steel reinforcement cage 2. Tooth portions 8 are provided at the top of one end of the ejector rods 7 away from the arc-shaped clamping blocks 9, gears 6 are meshed with the tops of the tooth portions 8, rotating shafts 5 are inserted in the centers of the gears 6, motors 4 are provided at one end of the rotating shafts 5, worm gears 10 are coaxially provided at one end of the rotating shafts 5 away from the motors 4, worm wheels 11 are meshed with the bottoms of the worm gears 10, rotating rods 12 are inserted in the centers of the worm wheels 11, the rotating rods 12 are all rotatably mounted on the side walls of the frame 1, winding discs 13 are coaxially sleeved on the outer peripheral surfaces of the rotating rods 12, cable ropes 14 are wound around the winding discs 13, the bottom ends of the cable ropes 14 are all connected with brackets 16, the brackets 16 all slidably penetrate through the frame 1, and one end inside the frame 1 is all in contact with the bottom end of the steel reinforcement cage 2; hinge frames 17 are hinged at the ends of the brackets 16, and the hinge frames 17 are all fixed on the side walls of the frame 1. As Figure 3 and Figure 5As shown in the figure, the descending mechanism includes sliding columns 18 symmetrically inserted into both sides of the frame 1. Telescopic columns 19 are slidably inserted at the ends of the sliding columns 18. Mounting seats 21 are provided at the ends of the telescopic columns 19 away from the sliding columns 18. Guide wheels 22 are hinged to the mounting seats 21, and the guide wheels 22 are in rolling contact with the outer side wall of the steel reinforcement cage 2; Slide blocks 23 are slidably connected to the inner walls of the sliding columns 18. Friction plates 25 are provided at the ends of the slide blocks 23, and the friction plates 25 are in contact with the outer circumferential surfaces of the adjacent guide wheels 22. An adjusting assembly for controlling the movement of the guide wheels 22 is provided at the end of the sliding column 18 away from the guide wheel 22.

[0023] Specifically, the adjusting assembly includes a connecting rod 26 provided at the end of the sliding column 18 away from the guide wheel 22. Adjusting screws 27 are threadedly inserted into the connecting rods 26. Handwheels 28 are coaxially provided at the ends of the adjusting screws 27. The adjusting screws 27 are rotatably installed on the side walls of the frame 1. Springs 24 are provided between the slide blocks 23 and the connecting rods 26; Top springs 20 are sleeved outside the telescopic columns 19. Guide cylinders 15 are slidably sleeved outside the cable 14. The guide cylinders 15 are fixed to the outer walls of the frame 1. Adjustable support legs 3 are provided at the four corners of the bottom of the frame 1; In the normal working state, the sum of the clamping force of the clamping mechanism on the steel reinforcement cage 2 and the frictional force of the descending mechanism on the steel reinforcement cage 2 is greater than or equal to the maximum sinking force received by the steel reinforcement cage 2 during the pouring process. The motor 4 and the rotating shaft 5, the rotating shaft 5 and the gear 6, and the rotating shaft 5 and the worm 10 are all key-connected.

[0024] When the anti-sinking device for photovoltaic cast-in-place piles of the present invention is in use: Before the construction of photovoltaic cast-in-place pile pouring, first adjust the adjustable support legs 3 at the four corners of the bottom of the frame 1 according to the ground conditions at the construction site; by adjusting the height of the adjustable support legs 3, the frame 1 is in a horizontal and stable state, providing a solid and reliable foundation for the subsequent operation of the device on the steel reinforcement cage 2; after ensuring the stability of the frame 1, insert the steel reinforcement cage 2 into the circular positioning holes at the upper and lower ends of the frame 1. Since the diameter of the steel reinforcement cage 2 is smaller than the diameter of the positioning hole, the insertion operation can be successfully completed, and the steel reinforcement cage 2 is initially positioned; Working process of the clamping mechanism: Horizontal clamping action: Start the motor 4. The power output by the motor 4 drives the connected rotating shaft 5 to start rotating. The rotation of the rotating shaft 5 causes the coaxially installed gear 6 to rotate synchronously. Since the gear 6 meshes with the tooth part 8 at one end of the ejector rod 7, according to the gear transmission principle, the rotational motion of the gear 6 is converted into the linear motion of the ejector rod 7, pushing the ejector rod 7 to slide horizontally inward along both ends of the frame 1. As the ejector rod 7 slides, the arc-shaped clamping block 9 connected to the end of the ejector rod 7 inside the frame 1 gradually approaches the steel reinforcement cage 2 until the arc-shaped clamping block 9 is in close contact with the outer side of the steel reinforcement cage 2; the designed shape of the arc-shaped clamping block 9 can better fit the outer contour of the steel reinforcement cage 2, thereby forming a uniform and stable clamping force on the steel reinforcement cage 2 in the horizontal direction, effectively preventing the steel reinforcement cage 2 from displacing in the horizontal direction.

[0025] Bottom supporting action: While the motor 4 drives the rotating shaft 5 to rotate, the worm 10 coaxially arranged at the end of the rotating shaft 5 away from the motor 4 also rotates accordingly. The worm 10 meshes with the worm gear 11. The rotation of the worm 10 drives the worm gear 11 to rotate around its central axis. The rotating rod 12 inserted into the center of the worm gear 11 rotates as the worm gear 11 rotates. The reel 13 coaxially sleeved on the outer peripheral surface of the rotating rod 12 also rotates together. The rotation of the reel 13 will realize the winding or unwinding operation of the cable 14 wound around it; when the arc-shaped clamping block 9 horizontally clamps the steel reinforcement cage 2, the reel 13 winds the cable 14, pulling up the bracket 16 connected to the bottom end of the cable 14. The bracket 16 slides upward along the frame 1 until the end of the bracket 16 inside the frame 1 is in close contact with the bottom end of the steel reinforcement cage 2; at this time, the bracket 16 provides a strong supporting effect on the steel reinforcement cage 2 from below, cooperating with the clamping force of the arc-shaped clamping block 9 in the horizontal direction, further enhancing the fixing effect on the steel reinforcement cage 2 and effectively preventing the steel reinforcement cage 2 from sinking in the vertical direction. The articulated frame 17 hinged at the end of the bracket 16 is fixed on the side wall of the frame 1. It not only provides a support point for the bracket 16 but also limits the movement trajectory of the bracket 16, ensuring that the bracket 16 can stably support the steel reinforcement cage 2 during operation.

[0026] Guiding and straightening action: Using the elastic force of the top spring 20, one end of the top spring 20 acts on the telescopic column 19, and the other end acts on the sliding column 18 or related fixed structure, causing the telescopic column 19 to have an outward sliding tendency inside the sliding column 18; as the telescopic column 19 slides, the mounting seat 21 connected to the end of the telescopic column 19 away from the sliding column 18 and the guide wheel 22 hinged on the mounting seat 21 gradually approach the steel reinforcement cage 2. Finally, the guide wheel 22 comes into rolling contact with the outer side wall of the steel reinforcement cage 2; during the lowering process of the steel reinforcement cage 2, the guide wheel 22 always remains in contact with the steel reinforcement cage 2. Since the guide wheel 22 can rotate freely, it can provide a certain guiding effect for the steel reinforcement cage 2, ensuring that the steel reinforcement cage 2 always remains vertical during the lowering process and avoiding construction problems caused by inclination.

[0027] Slow-down control action: When it is necessary to adjust the lowering speed of the steel reinforcement cage 2, the construction worker rotates the handwheel 28. The rotation of the handwheel 28 drives the adjusting screw rod 27 coaxially connected thereto to rotate. Since the adjusting screw rod 27 is threadedly inserted on the connecting rod 26, according to the principle of screw drive, the rotation of the adjusting screw rod 27 will cause the connecting rod 26 to move linearly along the axial direction of the adjusting screw rod 27. The connecting rod 26 is connected to the extrusion seat 23 through the spring 24. The movement of the connecting rod 26 will push the extrusion seat 23 to slide inside the sliding column 18 through the spring 24. The friction plate 25 provided at the end of the extrusion seat 23 is in close contact with the outer peripheral surface of the guide wheel 22 as the extrusion seat 23 slides. By adjusting the rotation direction and the number of turns of the handwheel 28, the moving distance of the connecting rod 26 can be accurately controlled, and further the thrust of the spring 24 on the extrusion seat 23 can be adjusted, and finally the pressure between the friction plate 25 and the guide wheel 22 can be adjusted. As the pressure between the friction plate 25 and the guide wheel 22 changes, the friction force between the guide wheel 22 and the steel reinforcement cage 2 also changes accordingly, so as to realize the accurate control of the slow-down speed of the steel reinforcement cage 2 and effectively prevent the steel reinforcement cage 2 from sinking rapidly during the pouring process.

[0028] During the working process of the whole device, the cable 14 moves continuously under the winding and unwinding operations of the reel 13. In order to ensure the stable movement track of the cable 14 and prevent problems such as deviation and winding during its movement, a guide cylinder 15 is slidably sleeved outside the cable 14. The guide cylinder 15 is fixed on the outer wall of the frame 1. The guide cylinder 15 provides an accurate guiding channel for the cable 14, so that the cable 14 can move along a predetermined path, avoiding the adverse effects on the working of the device caused by the abnormal movement of the cable 14, and at the same time reducing the friction between the cable 14 and other components and prolonging the service life of the cable 14.

[0029] The adjustable support leg 3 of the present invention plays a crucial role in supporting and stabilizing the whole device. Before construction, by adjusting the height of the adjustable support leg 3, the frame 1 can adapt to different ground conditions at the construction site. Whether it is a flat ground or a ground with a certain slope or unevenness, the frame 1 can be kept in a horizontal and stable state by adjusting the adjustable support leg 3. Only when the frame 1 is in a stable state can the clamping mechanism and the slow-down mechanism work properly to effectively fix and control the slow-down of the steel reinforcement cage 2, thus ensuring the smooth progress of the photovoltaic cast-in-place pile pouring construction.

[0030] Through the side clamping and bottom support of the clamping mechanism, as well as the guiding and slow-down control of the slow-down mechanism, the present invention can effectively prevent the steel reinforcement cage from sinking during the casting of the cast-in-place pile, ensuring the construction quality. The present invention adopts the methods of motor drive and handwheel adjustment, which are simple and convenient to operate, reducing the labor intensity of construction workers and improving the construction efficiency. The adjustable support legs of the present invention can adapt to different ground conditions at the construction site, ensuring the stability of the device; the slow-down mechanism can flexibly adjust the lowering speed of the steel reinforcement cage according to the actual situation, and is applicable to various construction scenarios.

[0031] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An anti-sinking device for the steel reinforcement cage during the pouring of a photovoltaic cast-in-place pile, characterized in that It includes a frame, a clamping mechanism and a slow-down mechanism. The frame is a rectangular central structure with circular positioning holes opened at both the upper and lower ends. A steel reinforcement cage with a diameter smaller than that of the positioning holes is inserted inside the frame. The clamping mechanism includes ejector rods that are horizontally slidably inserted at both ends of the frame. An arc-shaped clamping block is provided at one end of the ejector rod located inside the frame. A toothed portion is provided at the top of the end of the ejector rod away from the arc-shaped clamping block. The toothed portion meshes with a gear. A rotating shaft is inserted in the center of the gear. One end of the rotating shaft is connected to a motor, and a worm is coaxially provided at the other end. The worm meshes with a worm gear. A rotating rod is inserted in the center of the worm gear. A reel is coaxially sleeved on the outer peripheral surface of the rotating rod. A cable is wound around the reel. The bottom end of the cable is connected to a bracket that slidably penetrates through the frame and abuts against the bottom end of the steel reinforcement cage. A hinge bracket fixed to the side wall of the frame is hinged at the end of the bracket. The slow-down mechanism includes sliding columns symmetrically and slidably inserted on both sides of the frame. An expansion column is slidably inserted at the end of the sliding column. A mounting seat with a guide wheel hinged thereto is provided at the end of the expansion column away from the sliding column. The guide wheel rolls and abuts against the outer side wall of the steel reinforcement cage. An extrusion seat with a friction plate at its end is slidably connected to the inner wall of the sliding column. The friction plate abuts against the outer peripheral surface of the guide wheel. An adjusting component is provided at the end of the sliding column away from the guide wheel. The adjusting component includes a connecting rod provided at the end of the sliding column away from the guide wheel. An adjusting screw rod rotatably mounted on the side wall of the frame is threadedly inserted in the connecting rod. A hand wheel is coaxially provided at the end of the adjusting screw rod. A spring is provided between the extrusion seat and the connecting rod.

2. The anti-cage sinking device for photovoltaic cast-in-place pile pouring according to claim 1, wherein, A top spring is sleeved outside the expansion column, and the top spring is used to push the guide wheel to abut against the outer side wall of the steel reinforcement cage.

3. The anti-cage sinking device for photovoltaic cast-in-place pile pouring according to claim 1, characterized in that, A guide cylinder fixed to the outer wall of the frame is slidably sleeved outside the cable.

4. The anti-sinking device for the steel reinforcement cage during the casting of photovoltaic cast-in-place piles according to claim 1, characterized in that, Adjustable support legs are provided at the four corners of the bottom of the frame.

5. The anti-sinking device for the steel reinforcement cage during the casting of photovoltaic cast-in-place piles according to claim 1, characterized in that, The sum of the clamping force of the clamping mechanism on the steel reinforcement cage and the frictional force of the slow-down mechanism on the steel reinforcement cage is greater than or equal to the maximum sinking force received by the steel reinforcement cage during the pouring process.

6. The anti-sinking device for the steel reinforcement cage during the pouring of photovoltaic cast-in-place piles according to claim 1, characterized in that, Key connections are provided between the motor and the rotating shaft, between the rotating shaft and the gear, and between the rotating shaft and the worm.

7. The anti-cage sinking device for photovoltaic cast-in-place pile pouring according to claim 1, wherein, The radian of the arc-shaped clamping block is adapted to the outer peripheral surface of the steel reinforcement cage.

8. The anti-sinking device for the steel reinforcement cage during the casting of photovoltaic cast-in-place piles according to claim 1, characterized in that, An anti-slip protrusion is provided at one end of the bracket located inside the frame.

9. The usage method of the anti-cage sinking device for photovoltaic cast-in-place piles according to any one of claims 1-8, characterized in that, It includes the following steps: S1. Adjust the frame to make the frame in a horizontal and stable state. S2. Insert the steel reinforcement cage into the circular positioning holes at both the upper and lower ends of the frame. S3. Start the motor to drive the rotating shaft to rotate. Through the meshing of the gear and the toothed portion, the ejector rod slides horizontally, driving the arc-shaped clamping block to clamp the outer side of the steel reinforcement cage. S4. The rotating shaft drives the worm to rotate. Through the worm gear and the rotating rod, the reel winds up the cable, pulling the bracket up to abut against the bottom end of the steel reinforcement cage. S5. The guide wheel rolls and abuts against the outer side wall of the steel reinforcement cage to achieve guiding and straightening. S6. Rotate the hand wheel. Through the adjusting screw rod, the connecting rod and the spring, adjust the position of the extrusion seat, control the pressure between the friction plate and the guide wheel, and further adjust the lowering speed of the steel reinforcement cage. S7. During the concrete pouring process, prevent the steel reinforcement cage from sinking through the combined action of the clamping mechanism and the slow-down mechanism.

10. The method of using the device for preventing the reinforcement cage from sinking during the casting of photovoltaic cast-in-place piles according to claim 9, characterized in that, In S3, the arc-shaped clamping block forms a uniform clamping force on the steel reinforcement cage in the horizontal direction to prevent horizontal displacement; in S7, the clamping mechanism and the slow descent mechanism continue to work until the concrete pouring is completed and the strength is reached.

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