A hanging basket pre-pressing device

Abstract

The application relates to the technical field of hanging basket pre-pressing, and particularly discloses a hanging basket pre-pressing device which comprises a supporting frame, a pressing assembly and an auxiliary assembly; the supporting frame is matched with a bridge body; the pressing assembly comprises a transmission rod which is rotationally matched with the supporting frame, a hydraulic oil cylinder I which is matched with two ends of the transmission rod and a pressing rod; the auxiliary assembly comprises an auxiliary wheel which is arranged at an output end of the hydraulic oil cylinder I and an auxiliary plate which is connected with the transmission rod, the auxiliary wheel is abutted with the auxiliary plate, and one side of the auxiliary plate which is matched with the auxiliary wheel is provided with an auxiliary groove; when pre-pressing, the hydraulic oil cylinder I pushes the auxiliary plate through the auxiliary wheel, drives the transmission rod to rotate, and then drives the pressing rod to move downwards to press the hanging basket; the hanging basket pre-pressing device has the effect of reducing the risk of damage of the hanging basket during pre-pressing.

Description

Technical Field

[0001] This invention relates to the technical field of preloading of hanging baskets, and specifically to a preloading device for hanging baskets. Background Technology

[0002] The hanging formwork is a core load-bearing device used in cantilever construction to support formwork, reinforcing bars, concrete, and construction equipment. It is mainly used in the construction of long-span continuous beam bridges. Before the hanging formwork is put into use, it needs to be pre-stressed by applying an equivalent or slightly larger load than the design load to test the strength, stiffness, and stability of the hanging formwork structure, eliminate the inelastic deformation of the various connection parts and members of the hanging formwork, and measure and obtain the elastic deformation data of the hanging formwork under load. This provides a basis for the subsequent setting of the formwork elevation, ensuring the accuracy of the bridge alignment and the safety and reliability of construction.

[0003] Patent document CN223922018U discloses a mechanism for pre-compressing a hanging basket. The hanging basket includes a truss located above the cast-in-place structure, a bottom basket located below the truss and connected to the upper front crossbeam of the hanging basket via at least two first hangers, and a sliding beam located between the truss and the bottom basket. One end of the sliding beam is connected to the cast-in-place structure, and the other end is connected to the upper front crossbeam via a second hanger. A horizontal bar is fixedly connected to the cast-in-place structure, with the lower end of an inclined bar connected above the horizontal bar, and the upper end of the inclined bar connected to the cast-in-place structure. A first tie rod extending downwards is connected to the sliding beam, and the first tie rod is connected to the horizontal bar via a first driving device. The first hanger extends downwards and is connected to the bottom basket via a second driving device. During the pre-compressing test, the first driving device applies a downward force to the sliding beam, and the second driving device applies a downward force to the bottom basket. By applying downward forces to the sliding beam and the bottom basket respectively through the first and second driving devices, the hanging basket is pre-compressed.

[0004] However, this scheme also has the following problems: During the preloading process of the hanging basket, a large displacement of the structure usually indicates that its overall stiffness and stability are approaching a critical state. If loading continues, it is very easy to cause plastic deformation of components, slippage of connection nodes, or even overall instability and failure. In actual working conditions, when abnormal large displacement is detected during the preloading process and the machine is stopped, the pressure in the hydraulic pump, pipeline and cylinder cannot be released instantaneously. The residual oil pressure will continue to act on the hanging basket structure, causing the hanging basket to continue to produce additional deformation after the pressure is stopped, and the displacement shows a continuous increasing trend. If the displacement increase is within a controllable range after the pressure is stopped, it will generally not have an adverse effect on the structure. However, once the displacement continues to increase and exceeds the critical limit, it will directly cause the stress state of the hanging basket structure to break through the safety critical condition, thereby causing overall deformation or even structural damage, which poses a significant safety risk. Summary of the Invention

[0005] This invention provides a preloading device for hanging baskets, which aims to solve the problem in related technologies that residual pressure after the hanging basket preloading is stopped can easily lead to continuous structural deformation and the risk of instability and damage.

[0006] The pre-pressing device for the hanging basket of the present invention includes a support frame, a pressing assembly, and an auxiliary assembly. The support frame is fitted with the bridge body. The pressing assembly includes a transmission rod that rotates with the support frame, a hydraulic cylinder 1 that is fitted with both ends of the transmission rod, and a pressing rod. The auxiliary assembly includes an auxiliary wheel located at the output end of the hydraulic cylinder 1 and an auxiliary plate connected to the transmission rod. The auxiliary wheel abuts against the auxiliary plate, and an auxiliary groove is provided on the side of the auxiliary plate that fits with the auxiliary wheel. During pre-pressing, the hydraulic cylinder 1 pushes the auxiliary plate through the auxiliary wheel, driving the transmission rod to rotate, which in turn drives the pressing rod to move downward to apply pressure to the hanging basket. During the pressing process, the pressing rod moves downward accordingly, the transmission rod rotates synchronously, and the auxiliary wheel gradually moves along the auxiliary plate towards the auxiliary groove. When the displacement exceeds a preset range, the pushing action of the hydraulic cylinder 1 is released, and the auxiliary wheel falls into the auxiliary groove to prevent residual oil pressure from continuing to apply pressure to the hanging basket.

[0007] Its effect lies in the fact that by setting an auxiliary wheel at the output end of the hydraulic cylinder and cooperating with the auxiliary groove of the auxiliary plate, when the preload of the hanging basket exceeds the set safety threshold and the hydraulic cylinder begins to depressurize, the cooperation between the auxiliary wheel and the auxiliary groove eliminates the problem of residual oil pressure inside the hydraulic cylinder continuously acting on the hanging basket during the depressurization process. During operation, the hydraulic cylinder drives the pressing rod downward through the transmission rod to apply preload to the hanging basket. As the inelastic deformation of the hanging basket components gradually disappears, the pressing rod continues to move downward and the transmission rod rotates synchronously, causing the auxiliary wheel to gradually approach the auxiliary groove. When the deformation reaches the critical displacement threshold, the hydraulic cylinder automatically depressurizes, and the auxiliary wheel enters the auxiliary groove synchronously and slides relative to it, effectively isolating the secondary loading effect of residual oil pressure, preventing uncontrollable structural damage to the hanging basket, and significantly reducing the safety hazards of hanging basket preloading construction.

[0008] Preferably, the transmission rod is provided with a mounting frame, and the auxiliary plate is slidably assembled in the mounting frame along the length of the transmission rod. A drive assembly is provided in the mounting frame. The drive assembly includes a power component and a drive screw rotatably assembled in the mounting frame. The output end of the power component is connected to the drive screw, and the drive screw is threadedly engaged with the auxiliary plate. When the pressing rod abuts against the hanging basket, the power component drives the auxiliary plate to move through the drive screw, causing the auxiliary groove to move closer to the auxiliary wheel.

[0009] Its effect is that after the pressing rod applies pressure to the hanging basket, the distance between the auxiliary wheel and the auxiliary groove is relatively large. The power component drives the auxiliary plate to move through the drive screw, which drives the auxiliary groove to move closer to the auxiliary wheel, adjusting the distance between the two so that the distance between them corresponds to the limit displacement of the pressing rod, so that the auxiliary wheel can enter the auxiliary groove after the deformation of the hanging basket reaches the predetermined value.

[0010] Preferably, multiple auxiliary wheels are provided, and the multiple auxiliary wheels are divided into two groups along the sliding direction of the auxiliary plate, and the two groups of auxiliary wheels are staggered along the sliding direction of the auxiliary plate; multiple auxiliary grooves are provided in one-to-one correspondence with the multiple auxiliary wheels.

[0011] Its effect is to improve the stability of the cooperation between the two by setting multiple auxiliary wheels and auxiliary plates.

[0012] Preferably, the output end of the hydraulic cylinder is rotatably provided with a receiving plate, and the auxiliary wheel is mounted on the receiving plate; when the auxiliary wheel abuts against the auxiliary plate, the receiving plate rotates synchronously with the rotation of the transmission rod.

[0013] Its effect is that by rotating the receiving plate at the end of the hydraulic cylinder, the receiving plate can always be parallel to the auxiliary plate, that is, drive multiple auxiliary wheels to keep in contact with the auxiliary plate, thereby further improving the stability of the cooperation between the auxiliary wheels and the auxiliary plate.

[0014] Preferably, the transmission rod and the pressing rod are rotatably connected, and a stabilizing rod is rotatably provided on the support frame, with the stabilizing rod arranged above the transmission rod; one end of the stabilizing rod is rotatably connected to the pressing rod, and the other end is rotatably connected to a connecting rod, which is also rotatably connected to the transmission rod, and the connecting rod and the pressing rod are parallel to each other.

[0015] Its effect is that by setting up a stabilizing bar and a connecting bar, the pressing bar is always kept vertical, thereby stably providing a downward pushing force to the hanging basket and improving the stability of the pressing bar.

[0016] Preferably, a side pressure rod is rotatably mounted on the support frame, the side pressure rod is located above the support frame, and its end is provided with a side pressure assembly that cooperates with the hanging basket wing plate; a second hydraulic cylinder is installed on the stabilizer rod, the output end of the second hydraulic cylinder abuts against the end of the side pressure rod away from the side pressure assembly, the second hydraulic cylinder applies a thrust to the side pressure rod, and then applies a clamping force to the side wing of the hanging basket through the side pressure assembly.

[0017] Preferably, the side pressure assembly includes a pressure frame, a middle rod, and a pull rod. There are two pressure frames, which are placed on the wing plates on both sides of the hanging basket. The two ends of the middle rod are connected to the two pressure frames respectively. The lower end of the pull rod is rotatably connected to the side pressure rod, and the upper end is provided with a bent part that cooperates with the middle rod.

[0018] Its effect is that, under the action of hydraulic cylinder two, the pull rod is pulled downward by the side pressure rod, and the pull rod applies pressure to the wing plate of the hanging basket through the middle rod and the pressure frame, thereby realizing the pre-pressure test of the wing plate of the hanging basket.

[0019] Preferably, a support frame is placed at the bottom of the hanging basket, and a pressing seat is provided at the bottom of the pressing rod to abut against the support frame.

[0020] Preferably, the upper and lower ends of the support frame are respectively provided with a clamping plate and a clamping seat. The clamping plate is clamped on the top plate of the bridge body, and the clamping seat is placed on the bottom plate of the bridge body. A hydraulic cylinder is installed on the clamping seat, and the support frame is vertically set between the clamping plate and the clamping seat.

[0021] Preferably, a worm gear is coaxially provided at the output end of the power component, and a worm wheel that cooperates with the worm gear is coaxially provided at the end of the drive screw.

[0022] Beneficial effects: By setting an auxiliary wheel and an auxiliary plate at the output end of hydraulic cylinder one, the auxiliary wheel can enter the auxiliary groove to achieve adaptive buffering and unloading when hydraulic cylinder one is depressurized. This counteracts the continuous force of residual oil pressure in the cylinder, avoids residual oil pressure from continuing to squeeze the hanging basket components during the depressurization stage, eliminates the problem of component deformation and failure caused by overload, significantly reduces the safety risks and quality hazards of high-altitude hanging basket preloading construction, and reduces the risk of damage to the hanging basket during preloading. Attached Figure Description

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

[0024] Figure 2 This is a side view of the hanging basket in this invention.

[0025] Figure 3 This is a schematic diagram showing the positional relationship between the support frame and the bridge body in this invention.

[0026] Figure 4 This is a schematic diagram of the side pressure assembly in this invention.

[0027] Figure 5 This is a schematic diagram of the pressing component in this invention.

[0028] Figure 6 This is a schematic diagram of the auxiliary component in this invention.

[0029] Figure 7 This is a partially exploded view of the auxiliary plate and mounting frame in this invention.

[0030] Figure 8 This is a schematic diagram of the auxiliary wheel in this invention.

[0031] Figure 9 This is a schematic diagram of the auxiliary groove in this invention.

[0032] Figure label: 1. Bridge body; 11. Hanging basket; 12. Support frame; 2. Support frame; 21. Card plate; 22. Card seat; 3. Pressing assembly; 31. Transmission rod; 311. Mounting frame; 32. Hydraulic cylinder one; 321. Support plate; 33. Pressing rod; 331. Pressing seat; 4. Auxiliary assembly; 41. Auxiliary wheel; 42. Auxiliary plate; 421. Auxiliary groove; 5. Drive assembly; 51. Power component; 511. Worm gear; 512. Worm wheel; 52. Drive screw; 6. Stabilizer bar; 61. Connecting rod; 7. Side pressure rod; 71. Hydraulic cylinder two; 8. Side pressure assembly; 81. Pressure frame; 82. Intermediate rod; 83. Tie rod. Detailed Implementation

[0033] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0034] like Figures 1 to 9 As shown, the preloading device for the hanging basket of the present invention includes a support frame 2, a pressing component 3, an auxiliary component 4, a side pressure rod 7, and a side pressure component 8. The support frame 2 is adapted to the bridge body 1 and arranged at the end of the bridge body 1. The pressing component 3, the side pressure rod 7, and the side pressure component 8 are all installed and fixed on the support frame 2. The auxiliary component 4 forms a cooperative connection structure with the pressing component 3. When performing preloading on the hanging basket 11, the auxiliary component 4 and the pressing component 3 work together to apply vertical preload to the bottom of the hanging basket 11 to complete the bottom preloading. At the same time, the side pressure rod 7 and the side pressure component 8 cooperate to apply lateral preload to the two side wing plates of the hanging basket 11. By applying vertical and lateral forces simultaneously, the overall preloading operation of the hanging basket 11 is completed, ensuring that the structural stress performance of the hanging basket 11 meets the construction requirements.

[0035] Reference Figure 4 , Figure 5 , Figure 6 The pressing assembly 3 includes a transmission rod 31, a hydraulic cylinder 32, and a pressing rod 33. The transmission rod 31 is installed with the support frame 2 by a rotatable fit and can rotate around the hinge point on the support frame 2. The hydraulic cylinder 32 and the pressing rod 33 are respectively assembled at both ends of the transmission rod 31. The pressing rod 33 is arranged at the end of the transmission rod 31 near the hanging basket 11, while the hydraulic cylinder 32 is arranged at the end of the transmission rod 31 away from the hanging basket 11. The cylinder body of the hydraulic cylinder 32 is fixedly installed on the support frame 2 to form a stable power support base. The hydraulic cylinder 32 is located below the transmission rod 31.

[0036] During the pre-loading operation of the hanging basket 11, the hydraulic cylinder 32 is activated and extends its piston rod, pushing the end of the transmission rod 31 that it is engaged with upward, causing the end to deflect upward around the hinge fulcrum. Under the action of the lever transmission principle, the end of the transmission rod 31 near the hanging basket 11 synchronously generates a downward rotational displacement, which in turn drives the pressing rod 33 at that end to move smoothly downward. As the displacement continues to advance, the lower end of the pressing rod 33 gradually contacts the upper structure of the hanging basket 11 and forms an abutment state. The pushing force continuously output by the hydraulic cylinder 32 is transmitted through the transmission rod 31 lever and transformed into the downward pressure of the pressing rod 33 on the hanging basket 11, thereby realizing the pre-loading of the hanging basket 11.

[0037] Reference Figure 3 , Figure 4 , Figure 5 The upper end of the support frame 2 is fixedly equipped with a clamping plate 21, and the lower end is correspondingly fixedly installed with a clamping seat 22 that matches the bottom plate of the bridge body 1. The inner contour of the clamping plate 21 is adapted to the outer edge of the top plate of the bridge body 1, which can stably engage and limit the clamping on the top plate of the bridge body 1, realizing vertical positioning and preventing detachment. The clamping seat 22 is placed and supported on the surface of the bottom plate of the bridge body 1, ensuring that the bottom is evenly stressed and stably placed. The hydraulic cylinder 32 is fixedly installed at the upper installation position of the clamping seat 22, and the support frame 2 is vertically connected between the clamping plate 21 and the clamping seat 22.

[0038] During the on-site assembly and installation of the support frame 2, the operator aligns and fastens the upper plate 21 of the support frame 2 to the designated installation position on the top plate of the bridge body 1, while simultaneously placing the lower plate 22 of the support frame 2 stably on the corresponding support point on the bottom plate of the bridge body 1. Relying on the upper and lower cooperating limiting and installation structure, the support frame 2 can be quickly and vertically erected and fixed in the preset area inside the bridge body 1 without complicated adjustment and auxiliary fixing procedures, greatly simplifying the installation process and shortening the assembly time.

[0039] Under normal operating conditions, the transmission rod 31 rotates and simultaneously drives the pressing rod 33 to move downward in the vertical direction to apply pressure. This vertical force is directly transmitted to the overall structure of the support frame 2. The support frame 2 can stably withstand the continuous vertical downward load, and the overall structure is not prone to displacement, tilting or deformation, effectively ensuring the safety and stability of the overall construction structure.

[0040] Reference Figure 5 , Figure 6 , Figure 7The auxiliary component 4 includes an auxiliary wheel 41 and an auxiliary plate 42. The auxiliary wheel 41 is fixedly installed at the output end of the hydraulic cylinder 32. The auxiliary wheel 41 can reciprocate linearly with the extension and retraction of the hydraulic cylinder 32. The auxiliary plate 42 is fixedly connected to the transmission rod 31. The auxiliary plate 42 can rotate synchronously with the transmission rod 31. In the initial state, the auxiliary wheel 41 at the output end of the hydraulic cylinder 32 and the working surface of the auxiliary plate 42 are in close contact. At the same time, the auxiliary plate 42 has an auxiliary groove 421 on the side surface facing the auxiliary wheel 41 that matches the shape of the auxiliary wheel 41. The size of the auxiliary groove 421 is larger than that of the auxiliary wheel 41, so that the auxiliary wheel 41 can enter the auxiliary groove 421.

[0041] When the preloading operation of the hanging basket 11 is carried out, the hydraulic cylinder 32 starts to work and extends outward to output a pushing force. The pushing force acts directly on the auxiliary plate 42 through the auxiliary wheel 41 at its end, so that the auxiliary wheel 41 abuts against the auxiliary plate 42. The auxiliary wheel 41 continuously pushes the auxiliary plate 42, thereby driving the transmission rod 31 fixed to the auxiliary plate 42 to rotate around its axis, thereby applying a stable preloading load to the hanging basket 11.

[0042] During the entire pre-compression process, as the hanging basket 11 undergoes slight compression deformation under the pre-compression, the required downward pressure space for the pressing rod 33 increases accordingly, further causing it to exhibit a continuous and stable gradual downward trend until the displacement reaches the preset critical value. Therefore, the pressing rod 33 will gradually move downward as the pre-compression is applied, and the transmission rod 31 will also rotate at a corresponding angle in sync with the downward movement of the pressing rod 33. At this time, the auxiliary wheel 41, which is in contact with the auxiliary plate 42, will slowly and smoothly slide along the surface of the auxiliary plate 42 towards the location of the auxiliary groove 421 under the influence of the rotation of the auxiliary plate 42 and the transmission rod 31.

[0043] As the pressing rod 33 extends downwards along with the piston rod of the hydraulic cylinder, if its downward displacement exceeds a preset safety threshold, the auxiliary wheel 41 moves to the auxiliary groove 421 and falls into it. Simultaneously, the control system monitors operating parameters in real time via displacement or pressure sensors. Once it detects an over-limit displacement or pressure overload, it immediately issues a control command to open the pressure relief valve, achieving active pressure relief and stopping the piston rod from extending outwards, thus cutting off the power for continuous loading.

[0044] Since hydraulic oil is incompressible, residual oil pressure remains in the pump, pipelines, and cylinders during depressurization. If this residual pressure acts directly on the hanging basket 11, it can easily cause structural overload deformation. By setting up auxiliary wheels 41 and auxiliary grooves 421, the auxiliary wheels 41 enter the auxiliary grooves 421 while depressurizing, converting the jacking force generated by the residual oil pressure into relative displacement between the auxiliary wheels 41 and the auxiliary grooves 421. This eliminates the forced jacking constraint, preventing the force from being continuously transmitted and jacking the main structure of the hanging basket 11. This avoids deformation, damage, or failure of the main body of the hanging basket 11 and its load-bearing members due to continuous overload, significantly reducing the risk of equipment damage and structural safety hazards during the construction of the hanging basket 11.

[0045] Reference Figure 5 , Figure 6 , Figure 7 A mounting frame 311 is fixedly mounted on the transmission rod 31. The auxiliary plate 42 is slidably fitted inside the mounting frame 311 and can slide back and forth along the length of the transmission rod 31. A drive assembly 5 for driving the movement of the auxiliary plate 42 is provided inside the mounting frame 311. The drive assembly 5 includes a power component 51 and a drive screw 52. The drive screw 52 is rotatably fitted inside the mounting frame 311. The power component 51 is a motor, the output end of which is connected to the drive screw 52 and can drive the screw 52 to rotate. A threaded transmission fit is formed between the drive screw 52 and the auxiliary plate 42.

[0046] When the pressing rod 33 comes into contact with the hanging basket 11 and applies a pre-pressure force to the hanging basket 11, the power component 51 starts and drives the drive screw 52 to rotate through the output end. Under the action of the threaded engagement, the drive screw 52 converts the rotational motion into the linear movement of the auxiliary plate 42, thereby driving the auxiliary plate 42 to move along the length direction of the transmission rod 31, so that the auxiliary groove 421 on the auxiliary plate 42 gradually approaches the position of the auxiliary wheel 41.

[0047] While the auxiliary wheel 41 and auxiliary plate 42 are in contact and the pressing rod 33 is continuously applying a preload to the hanging basket 11, the power component 51 continues to drive the auxiliary plate 42 to move via the drive screw 52, ​​so that the auxiliary groove 421 moves precisely to the position corresponding to the auxiliary wheel 41. At this time, a preset gap distance is maintained between the auxiliary groove 421 and the auxiliary wheel 41, which matches the allowable downward displacement of the pressing rod 33 under normal preload conditions. This setting ensures that when the downward displacement of the pressing rod 33 is within the normal preload range, the auxiliary wheel 41 remains separated from the auxiliary groove 421; and when the downward displacement of the pressing rod 33 exceeds the preset safe displacement, the auxiliary wheel 41 can smoothly enter the interior of the auxiliary groove 421 to achieve the functions of limit, locking, or overload protection.

[0048] Since the auxiliary wheel 41 abuts against the auxiliary plate 42, the auxiliary wheel 41 can rotate when the auxiliary plate 42 moves, so that the position of the auxiliary wheel 41 relative to the transmission rod 31 is fixed, and thus the pushing force of the hydraulic cylinder 32 on the transmission rod 31 remains unchanged when the auxiliary plate 42 moves.

[0049] The displacement generated during the pre-compression process of the hanging basket 11 is relatively small. Therefore, the transmission rod 31 is designed with a structure where the main power arm is larger than the driven power arm. When the hydraulic cylinder 32 pushes the transmission rod 31 to rotate, the displacement amplification effect can be achieved. When the pressing rod 33 moves downward, the end of it close to the hydraulic cylinder 32 can move upward with a larger amplitude, which increases the moving distance of the auxiliary wheel 41 relative to the auxiliary plate 42, thereby achieving precise control of the relative position of the auxiliary groove 421 and the auxiliary wheel 41.

[0050] Reference Figure 7 The power component 51 has a worm gear 511 coaxially mounted at its output end, and a worm wheel 512 coaxially mounted at the end of the drive screw 52, ​​meshing with the worm gear 511. The power component 51 drives the drive screw 52 to rotate via the worm gear 511 and worm wheel 512, thereby adjusting the position of the auxiliary plate 42. Simultaneously, the worm wheel 512 and worm gear 511 have a self-locking characteristic, effectively preventing the auxiliary plate 42 from slipping after adjustment, thus reliably locking its position. Alternatively, in other embodiments, the power component 51 can also be a motor with a built-in self-locking function, ensuring that the auxiliary plate 42 remains stationary relative to the transmission rod 31 after its position is adjusted.

[0051] Reference Figure 7 , Figure 8 , Figure 9 Multiple auxiliary wheels 41 are provided, and the whole is divided into two groups along the sliding direction of the auxiliary plate 42. The two groups of auxiliary wheels 41 are staggered and distributed in a staggered manner in the sliding direction of the auxiliary plate 42. The auxiliary wheels 41 in the same group can maintain a relatively regular arrangement, while the two groups are not in the same straight line position in the sliding direction, forming an interlaced layout. The number of auxiliary grooves 421 is set one-to-one with the multiple auxiliary wheels 41, and each auxiliary wheel 41 is matched with an independent corresponding auxiliary groove 421.

[0052] By setting multiple auxiliary wheels 41 on the auxiliary plate 42 and keeping them in contact with the auxiliary plate 42, the contact support range between the auxiliary wheels 41 and the auxiliary plate 42 can be increased, the force can be effectively distributed, and the overall stability, coaxiality and smoothness of the cooperation between the auxiliary wheels 41 and the auxiliary plate 42 can be significantly improved, reducing the risk of shaking and displacement caused by unilateral force or single-point support.

[0053] Meanwhile, by staggering the two sets of auxiliary wheels 41 along the sliding direction of the auxiliary plate 42, when the auxiliary plate 42 slides in a set direction and drives the auxiliary grooves 421 on its surface to approach and cooperate with the auxiliary wheels 41 in sequence, the movement path of one set of auxiliary wheels 41 is staggered with the position of the auxiliary groove 421 corresponding to the other set of auxiliary wheels 41, and there is no overlap or interference. Structurally, this avoids a certain auxiliary wheel 41 from accidentally entering another non-corresponding auxiliary groove 421 during the movement, preventing jamming, misalignment, or positioning failure. This ensures that all auxiliary wheels 41 can move accurately and smoothly according to the design path and fall into their respective corresponding auxiliary grooves 421, achieving stable and reliable positioning.

[0054] Reference Figure 5 , Figure 6 , Figure 7 A receiving plate 321 is rotatably mounted on the extension and retraction output end of hydraulic cylinder 32. The receiving plate 321 can rotate and swing adaptively relative to the output end of hydraulic cylinder 32. An auxiliary wheel 41 is mounted on the receiving plate 321. During equipment operation, when the auxiliary wheel 41 abuts against the surface of the corresponding auxiliary plate 42, the receiving plate 321 will rotate synchronously with the rotation of the transmission rod 31. Relying on the follow-up compensation effect of the receiving plate 321, the auxiliary wheel 41 is always pressed tightly against the mating surface of the auxiliary plate 42, that is, the receiving plate 321 and the auxiliary plate 42 always remain parallel to each other to avoid separation, gap misalignment, etc. This ensures stable contact and limiting between the auxiliary wheel 41 and the auxiliary plate 42 throughout the power transmission and attitude change of the transmission rod 31, thereby ensuring that the pushing force output by hydraulic cylinder 32 acts smoothly, evenly, and continuously on the transmission rod 31, effectively improving the stability and force balance of the overall transmission operation.

[0055] Reference Figure 4 , Figure 5 , Figure 6 The transmission rod 31 and the pressing rod 33 are hinged to each other to form a rotating pair structure. A stabilizing rod 6 is rotatably mounted on the support frame 2. The stabilizing rod 6 is arranged in the area above the transmission rod 31. One end of the stabilizing rod 6 is hinged to the pressing rod 33, and the other end of the stabilizing rod 6 away from the pressing rod 33 is hinged to a connecting rod 61. The lower end of the connecting rod 61 is rotatably hinged to the rod body of the transmission rod 31. After assembly, the connecting rod 61 and the pressing rod 33 are arranged in a parallel and facing relationship.

[0056] Thus, the stabilizer 6, pressing rod 33, transmission rod 31, and connecting rod 61 are sequentially hinged together to form a parallelogram linkage transmission mechanism. When the transmission rod 31 rotates around the hinge point, it synchronously drives the stabilizer 6 to rotate in the same direction. Relying on the geometric constraints and motion synchronization characteristics of the parallelogram structure, the pressing rod 33 remains vertical and does not tilt under any rotation angle of the transmission rod 31. This ensures that the pressing rod 33 applies a pressing force vertically downward to the hanging basket 11, avoiding force deviation and effectively ensuring the stability of the hanging basket 11 under pressure. At the same time, it optimizes the transmission smoothness and structural rigidity of the overall mechanism, improving the overall operational reliability of the equipment.

[0057] Reference Figure 4 , Figure 5 , Figure 6 A support frame 12 is placed at the bottom of the hanging basket 11 to form a stable load-bearing support base. A pressing seat 331 is installed at the bottom end of the pressing rod 33. The bottom end face of the pressing seat 331 is smoothly attached to the upper support surface of the support frame 12.

[0058] By installing a pressing seat 331 at the lower end of the pressing rod 33, and cooperating with the support frame 12 at the bottom of the hanging basket 11 for contact support, the contact area between the pressing structure and the bottom of the hanging basket 11 is greatly increased. This changes the drawback of traditional point-like force distribution, effectively disperses concentrated loads, and makes the force on the bottom area of ​​the hanging basket 11 uniformly distributed. It avoids deformation and cracking damage caused by excessive local stress, and significantly improves the load-bearing strength and structural stability of the bottom of the hanging basket 11.

[0059] Meanwhile, the bottom mounting section of the pressing rod 33 and the interior of the pressing seat 331 adopt a sliding assembly structure with a clearance fit, forming a kinematic pair that can slide relative to each other. When the hanging basket 11 sinks under load and produces a downward vertical displacement, the pressing rod 33 moves vertically downward synchronously with the hanging basket 11. At the same time, due to the rotation of the transmission rod 31, the pressing rod 33 will move downward and simultaneously undergo lateral movement. Relying on the sliding fit between the pressing rod 33 and the pressing seat 331, the pressing rod 33 can freely make lateral position adjustments relative to the pressing seat 331, adaptively compensate for displacement deviations, and effectively eliminate position interference, hard compression, and jamming problems during component movement.

[0060] The side pressure rod 7 is rotatably mounted on the support frame 2 and arranged above the support frame 2. The rotation plane of the side pressure rod 7 and the rotation plane of the stabilizer rod 6 are in the same plane. A hydraulic cylinder 71 is fixedly installed on the stabilizer rod 6 at the rear position corresponding to the side pressure rod 7. Its extension and retraction output end abuts against and fits against the end of the side pressure rod 7. The hydraulic cylinder 71 and the side pressure assembly 8 are respectively set at both ends of the side pressure rod 7.

[0061] During operation, the piston rod of hydraulic cylinder 71 extends and continuously applies a directional pushing force to the end of the side pressure rod 7. Utilizing the lever transmission principle, this causes the side pressure rod 7 to rotate around its hinged position, simultaneously driving the side pressure assembly 8 at its end to apply pressure to the side wings of the hanging basket 11. Furthermore, while hydraulic cylinder 32 performs its pressure relief and unloading action, hydraulic cylinder 71 simultaneously follows suit, ensuring that the load on the entire pressure-bearing system of the hanging basket 11 is unloaded synchronously.

[0062] Reference Figure 4 , Figure 5 , Figure 6 The side pressure assembly 8 includes a pressure frame 81, a middle rod 82, and a pull rod 83. The pressure frames 81 are arranged in pairs, and the two pressure frames 81 are respectively placed on the wing plates on both sides of the hanging basket 11. The middle rod 82 is arranged horizontally in the transverse direction, and the left and right ends of the middle rod 82 are respectively connected to the pressure frames 81 on both sides. The pull rod 83 is arranged vertically, and the lower end of the pull rod 83 is rotatably engaged with the side pressure rod 7. The upper end of the pull rod 83 is integrally formed with a bent part, which can cooperate with the middle rod 82.

[0063] When the side pressure rod 7 rotates and swings, it will simultaneously drive and pull the pull rod 83 downward as a whole. During the downward movement, the pull rod 83 relies on the upper bent part to press and pull the middle rod 82, and then the middle rod 82 transmits the force to the pressure frames 81 on both sides, so that the pressure frames 81 press tightly against the wing plate surface of the hanging basket 11, thereby continuously applying directional pressing pressure to the wing plate of the hanging basket 11 to achieve pre-pressurization of the wing plate of the hanging basket 11.

[0064] The implementation principle of this invention is as follows: When the hanging basket 11 is pre-pressed, the hydraulic cylinder 32 drives the transmission rod 31 to rotate, which drives the pressing rod 33 to move downward, and applies pre-pressure to the bottom of the hanging basket 11 through the pressing seat 331 and the support frame 12; at the same time, the hydraulic cylinder 71 is started, and the middle rod 82 is pulled through the side pressing rod 7 and the pull rod 83, so that the pressing frame 81 pressurizes the wing plate of the hanging basket 11.

[0065] After the pressure applied to the hanging basket 11 by the pressing rod 33 reaches a predetermined value, the auxiliary wheel 41 abuts against the auxiliary plate 42 and is far from the auxiliary groove 421. Then, the power component 51 drives the auxiliary plate 42 to move relative to the auxiliary wheel 41, so that the auxiliary groove 421 is aligned and arranged at intervals with the corresponding auxiliary wheel 41. During the pre-pressurization process, the pressing rod 33 continues to move downward and the transmission rod 31 rotates synchronously. The auxiliary wheel 41 gradually moves closer to the auxiliary groove 421 relative to the auxiliary plate 42. When the downward movement of the pressing rod 33 exceeds the preset threshold, the hydraulic cylinder 32 is depressurized, and the auxiliary wheel 41 is engaged inside the auxiliary groove 421. By setting the cooperation structure between the auxiliary wheel 41 and the auxiliary groove 421, when there is residual oil pressure in the hydraulic cylinder 32, the auxiliary wheel 41 can move adaptively in the auxiliary groove 421, avoiding the residual oil pressure from continuously pressurizing the hanging basket 11 during the depressurization stage. This effectively protects the structure of the hanging basket 11, prevents component damage, and reduces on-site construction safety hazards.

[0066] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A preloading device for hanging baskets, characterized in that, Includes support frame, pressing component, and auxiliary components; The support frame mates with the bridge body; the pressing assembly includes: a transmission rod that rotatably engages with the support frame, a hydraulic cylinder 1 that mates with both ends of the transmission rod, and a pressing rod; the auxiliary assembly includes: an auxiliary wheel located at the output end of the hydraulic cylinder 1, an auxiliary plate connected to the transmission rod, the auxiliary wheel abutting against the auxiliary plate, and an auxiliary groove on the side of the auxiliary plate that mates with the auxiliary wheel; during pre-pressing, the hydraulic cylinder 1 pushes the auxiliary plate via the auxiliary wheel, driving the transmission rod to rotate, which in turn moves the pressing rod downwards to apply pressure to the hanging basket; during the pressing process, the pressing rod moves downwards accordingly, the transmission rod rotates synchronously, and the auxiliary wheel gradually moves along the auxiliary plate towards the auxiliary groove; when the displacement exceeds the preset range, the pushing action of the hydraulic cylinder 1 is released, and the auxiliary wheel falls into the auxiliary groove to prevent residual oil pressure from continuing to apply pressure to the hanging basket.

2. The preloading device for the hanging basket according to claim 1, characterized in that, The transmission rod is equipped with a mounting frame, and the auxiliary plate is slidably assembled in the mounting frame along the length of the transmission rod. The mounting frame is equipped with a drive assembly, which includes a power component and a drive screw that is rotatably assembled in the mounting frame. The output end of the power component is connected to the drive screw, and the drive screw is threadedly engaged with the auxiliary plate. When the pressing rod abuts against the hanging basket, the power component drives the auxiliary plate to move through the drive screw, causing the auxiliary groove to move closer to the auxiliary wheel.

3. The preloading device for the hanging basket according to claim 2, characterized in that, There are multiple auxiliary wheels, which are divided into two groups along the sliding direction of the auxiliary plate, and the two groups of auxiliary wheels are staggered along the sliding direction of the auxiliary plate; there are multiple auxiliary grooves corresponding to the multiple auxiliary wheels.

4. The preloading device for the hanging basket according to claim 2, characterized in that, The output end of the hydraulic cylinder is rotatably equipped with a receiving plate, and an auxiliary wheel is mounted on the receiving plate; when the auxiliary wheel abuts against the auxiliary plate, the receiving plate rotates synchronously with the rotation of the transmission rod.

5. The preloading device for the hanging basket according to claim 1, characterized in that, The transmission rod and the pressing rod are rotatably connected. A stabilizing rod is rotatably mounted on the support frame and is positioned above the transmission rod. One end of the stabilizing rod is rotatably connected to the pressing rod, and the other end is rotatably connected to a connecting rod. The connecting rod is also rotatably connected to the transmission rod, and the connecting rod and the pressing rod are parallel to each other.

6. The preloading device for the hanging basket according to claim 5, characterized in that, A side pressure rod is rotatably mounted on the support frame. The side pressure rod is located above the support frame, and its end is equipped with a side pressure assembly that cooperates with the hanging basket wing plate. A second hydraulic cylinder is installed on the stabilizer bar. The output end of the second hydraulic cylinder abuts against the end of the side pressure rod that is away from the side pressure assembly. The second hydraulic cylinder applies a thrust to the side pressure rod, and then applies a clamping force to the side wing of the hanging basket through the side pressure assembly.

7. The preloading device for the hanging basket according to claim 6, characterized in that, The side pressure assembly includes a pressure frame, a middle rod, and a tie rod. There are two pressure frames, which are placed on the wing plates on both sides of the hanging basket. The two ends of the middle rod are connected to the two pressure frames respectively. The lower end of the tie rod is rotatably connected to the side pressure rod, and the upper end is provided with a bent part that cooperates with the middle rod.

8. The preloading device for the hanging basket according to claim 5, characterized in that, A support frame is placed at the bottom of the hanging basket, and a pressing seat is provided at the bottom of the pressing rod to abut against the support frame.

9. The preloading device for the hanging basket according to claim 1, characterized in that, The upper and lower ends of the support frame are respectively equipped with a clamping plate and a clamping seat. The clamping plate is clamped on the top plate of the bridge body, and the clamping seat is placed on the bottom plate of the bridge body. A hydraulic cylinder is installed on the clamping seat, and the support frame is vertically set between the clamping plate and the clamping seat.

10. The preloading device for the hanging basket according to claim 2, characterized in that, The output end of the power component is coaxially equipped with a worm gear, and the end of the drive screw is coaxially equipped with a worm wheel that cooperates with the worm gear.

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