A hoisting device for cap beam construction

Abstract

This invention relates to the technical field of hoisting clamps, specifically disclosing a hoisting clamp equipment for bridge pier construction. The equipment includes a pair of support frames connected to lifting ropes and a connecting plate located between the two support frames. The support frames and the connecting plate are rotatably coupled. Two clamps are connected to their respective support frames via connecting ropes. The connecting plate is equipped with a jacking component and a rotating component. The jacking component is connected to the support frame via the rotating component, which drives the support frame to rotate. During hoisting, the end of the support frame facing away from the connecting plate is in an open state. When the connecting plate drives the jacking component to abut against the pier, the jacking component drives the support frame to rotate and close via the rotating component, thereby pulling the clamps to close and fitting them onto the outside of the pier. This hoisting clamp equipment for bridge pier construction of the present invention effectively avoids interference between the clamps and the pier during hoisting, improving hoisting efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of hoisting clamps, and specifically to a hoisting clamping device for cap beam construction. Background Technology

[0002] Bridge cap beam clamps are crucial temporary components in bridge cap beam construction. Their core function is to form a stable support system by tightly fitting with the pier. They can bear the entire construction load, including formwork, steel bars, concrete, and personnel and equipment, while also evenly distributing the load to the pier to avoid localized stress concentration. They can also replace traditional ground-based scaffolding, making them suitable for high piers, complex geological conditions, and restricted sites, reducing construction costs and time. At the same time, they ensure the accuracy of the axis, elevation, and structural dimensions of the cap beam construction, preventing slippage and deformation during construction. They can also temporarily fix the steel reinforcement cage and expand the construction space, providing a safe, efficient, and precise working foundation for cap beam construction.

[0003] Patent document CN214828335U discloses a double-clamp integral hoisting structure for cap beam construction, comprising an upper clamp and a lower clamp arranged sequentially from top to bottom. The upper clamp has first connecting bodies on both sides, and the lower clamp has second connecting bodies corresponding to the first connecting bodies on both sides. The first and second connecting bodies on the same side are connected by connectors. A hoisting device for hoisting the upper clamp is provided at its upper end. The first connecting bodies are configured as first lifting rings fixed to both sides of the upper clamp. Four first lifting rings are arranged and fixed in pairs to both sides of the upper clamp. By connecting the upper and lower clamps into a single unit, a one-time hoisting is performed.

[0004] However, this solution also has the following problems. The core process of hoisting the cap beam clamp is to first slowly lower the clamp from the top of the pier and fit it onto the outside of the pier, then move it precisely to the preset installation position and fix it with a fastening device. However, when hoisting a single clamp, due to the clamp's large weight, it is prone to irregular left and right swaying during the hoisting process due to the start and stop of the hoisting equipment, wind interference, and its own inertia. This not only makes it difficult to accurately align the clamp with the pier, requiring repeated adjustments for manual positioning, which is labor-intensive and poses a safety hazard of personnel collision, but also significantly increases the positioning time, slows down the hoisting progress, and affects construction efficiency.

[0005] Furthermore, the difficulty is further increased when hoisting the double-layer clamps simultaneously. Since the two clamps need to be raised and lowered synchronously, their swaying trajectories are difficult to be completely consistent, which can easily lead to mutual interference and misalignment. This significantly increases the difficulty of accurately fitting the two clamps onto the outside of the bridge pier at the same time. This not only further prolongs the operation time, but also increases the safety risk factor due to the increased operational complexity, thus having a dual impact on the safety and efficiency of the hoisting operation. Summary of the Invention

[0006] This invention provides a hoisting device for cap beam construction, aiming to solve the problem of low hoisting efficiency caused by swaying and positioning difficulties during hoisting in related technologies.

[0007] The hoisting device for bridge girder construction of the present invention includes a pair of support frames connected to the hoisting rope and a connecting plate located between the two support frames. The support frames and the connecting plate are rotatably coupled. The two hoops are respectively connected to the corresponding support frames through connecting ropes. The connecting plate is provided with a jacking component and a rotating component. The jacking component is connected to the support frame through the rotating component. The rotating component is used to drive the support frame to rotate. During hoisting, the end of the support frame away from the connecting plate is in an open state. When the connecting plate drives the jacking component to abut against the pier, the jacking component drives the support frame to rotate and close through the rotating component, thereby pulling the hoop to close and be fitted onto the outside of the pier.

[0008] The effect is that by setting a support frame and connecting plate at the lower end of the hoisting rope, the state of the clamp can be adjusted through the support frame and connecting plate during the hoisting process, so as to quickly hoist the clamp to the designated position. Specifically, when hoisting the clamp, the end of the support frame away from the connecting plate is opened, and then the end of the connecting rope away from the support frame is connected to the clamp. The hoisting rope lifts the clamp through the support frame. During the upward hoisting process, the clamp is also in an open state. After the height of the connecting plate corresponds to the designated position on the pier, the connecting plate is moved horizontally closer to the pier, which at the same time moves the clamp to the outside of the pier. When the jacking component comes into contact with the pier, the rotating component drives the support frame to rotate synchronously. The rotation of the support frame drives the clamp to rotate until the clamp is fitted onto the outside of the pier. Then, bolts and nuts are used to fix the two clamps to the outside of the pier. By moving the connecting plate during the hoisting process, the clamp is first moved to the outside of the pier, and then the clamp is driven to rotate and close to fit, thus avoiding interference between the clamp and the pier and improving hoisting efficiency.

[0009] Preferably, the jacking assembly includes: a sliding plate slidably mounted on the connecting plate, and a push plate mounted on the end of the sliding plate near the pier. The push plate is located on the side of the connecting plate near the pier and is arranged in a vertical direction. The sliding plate cooperates with the rotating assembly.

[0010] Its effect is that when the connecting plate approaches the pier, it causes the push plate to abut against the side of the pier. As the connecting plate continues to move, it causes the sliding plate to move relative to the connecting plate. During the sliding movement, the rotating component drives the support frame to rotate, thereby adjusting the position of the clamp.

[0011] Preferably, the rotating assembly includes: a rotating gear rotatably mounted in the connecting plate, an intermediate component that cooperates with the rotating gear, and a bevel gear set that is connected to the intermediate component and the rotating shaft of the receiving frame respectively. The sliding plate has a toothed groove that meshes with the rotating gear along its sliding direction. When the sliding plate slides, the rotating gear and the intermediate component drive the bevel gear set to rotate, thereby driving the receiving frame to rotate.

[0012] Its effect is that when the skateboard moves, it drives the rotating gear to rotate, and the rotation of the rotating gear drives the receiving frame to rotate through the intermediate component, so that the ends of the receiving frame away from the connecting plate move closer to each other, thus realizing the closing of the receiving frame.

[0013] Preferably, the intermediate component includes: a worm gear coaxially arranged with the rotating gear, a worm wheel meshing with the worm gear, and an intermediate rod coaxially arranged with the worm wheel; the bevel gear set includes: a first bevel gear coaxially arranged with the intermediate rod, and a second bevel gear coaxially arranged with the rotating shaft of the support frame, wherein the first bevel gear meshes with the second bevel gear.

[0014] Its effect is that the rotating gear drives the first bevel gear to rotate through the worm and worm wheel, and the first bevel gear drives the support frame to rotate through the second bevel gear. At the same time, the worm wheel and worm have a self-locking function, which allows the support frame to remain open during the hoisting process when the slide plate does not move.

[0015] Preferably, the support frame has an installation groove and a through groove. The through groove is located at the bottom of the support frame and communicates with the installation groove. A connecting block is slidably assembled in the installation groove. A connecting rope passes through the through groove and connects to the connecting block. The installation groove includes an inclined part. The end of the inclined part near the pier is inclined downward. The connecting block slides against the inclined part. The support frame is provided with a control component for limiting the position of the connecting block. After the clamp is sleeved on the outside of the pier, the ends of the two support frames away from the connecting plate abut against each other. Then the control component releases the restriction of the connecting block. Under the action of the inclined part, the connecting block slides closer to the pier so that the two clamps move synchronously closer to each other.

[0016] Its effect is that when the support frame is closed, the control component releases the restriction on the connecting block, and the connecting block slides under the action of the inclined part, while simultaneously driving the clamps closer to the pier to align the ends of the two clamps for subsequent fixing. At the same time, it ensures that there is a gap between the inner side of the clamp and the side of the pier when the clamp is initially closed, avoiding collision between the clamp and the pier.

[0017] Preferably, the control component includes: a stop block that slides vertically within the mounting groove; a control plate that slides on the end of the receiving frame away from the connecting plate; a rotating plate that rotates within the receiving frame; and control ropes that are connected to the stop block and the rotating plate respectively. The end of the control plate extends into the receiving frame and abuts against the rotating plate. The control rope is connected to the end of the rotating plate away from the control plate. When the two receiving frames are closed, the control plate moves to push the rotating plate to rotate. Then, the control rope pulls the stop block upward to separate it from the connecting block, thus releasing the restriction on the connecting block.

[0018] Preferably, the mounting groove is provided with elastic element one and elastic element two. Elastic element one is connected to the side of the connecting block away from the pier to drive the connecting block away from the pier. Elastic element two is sleeved on the outside of the control rope and connected to the stop block. Elastic element two is used to drive the stop block to move downward. When the stop block abuts against the side of the connecting block away from elastic element one, it is used to fix the position of the connecting block.

[0019] Preferably, each support frame is equipped with two sets of stops, connecting blocks, and connecting ropes. The two sets of connecting ropes are connected to different positions on the clamps. The sliding directions of the two connecting blocks are parallel. The control rope includes a connecting end one and a connecting end two that are connected to the two sets of stops respectively. When the two support frames come into contact, the connecting blocks drive the two clamps to move closer to the pier simultaneously.

[0020] Preferably, two sets of bevel gear sets are provided corresponding to the two sets of support frames, with the intermediate rod located between the two sets of bevel gear sets, and the two ends of the intermediate rod being connected to the first bevel gear in each of the two sets of bevel gear sets.

[0021] Preferably, the push plate and the slide plate are rotatably connected, the axis of rotation of the push plate is set in the horizontal direction, the axis of rotation of the push plate is set perpendicular to the sliding direction of the slide plate, and a torsion spring is provided between the push plate and the slide plate to drive the push plate to rotate to a vertical state.

[0022] Beneficial effects:

[0023] This invention utilizes a connecting plate and a receiving frame connected to the connecting plate. The rotation of the receiving frame causes the clamp to rotate synchronously, opening or closing the clamp. When open, the clamp is placed on the outside of the pier through the side. Once placed on the side of the pier, the clamp closes and fits onto the outside of the pier. This avoids interference between the clamp and the pier during hoisting, ensures a smooth installation path, and improves hoisting efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 This is a schematic diagram of the clamp structure in this invention.

[0026] Figure 3 This is a schematic diagram of the clamp in the open state in this invention.

[0027] Figure 4 This is a schematic diagram of the connection between the support frame and the clamp of the present invention.

[0028] Figure 5 This is a schematic diagram of the connection relationship between the connecting plate and the receiving frame in this invention.

[0029] Figure 6 yes Figure 5 Enlarged view of the structure at point A in the middle.

[0030] Figure 7 This is a partial exploded view of the rotating gear and the sliding plate in this invention.

[0031] Figure 8 This is a schematic diagram of the mounting groove in this invention.

[0032] Figure 9 This is a partial exploded view of the connecting block and the receiving frame in this invention.

[0033] Figure 10 This is a schematic diagram of the internal structure of the receiving frame of the present invention.

[0034] Figure 11 This is a schematic diagram of the control component in this invention.

[0035] Figure label:

[0036] 01. Pier; 02. Clamp; 03. Connecting rope; 1. Lifting rope; 11. Lifting hook; 2. Support frame; 21. Mounting groove; 211. Inclined part; 22. Through groove; 3. Connecting plate; 31. Lifting lug; 4. Pushing assembly; 41. Slide plate; 411. Gear groove; 42. Push plate; 5. Rotating assembly; 51. Rotating gear; 52. Intermediate component; 521. Worm gear; 522. Worm wheel; 523. Intermediate rod; 53. Bevel gear set; 531. Bevel gear one; 532. Bevel gear two; 6. Connecting block; 7. Control assembly; 71. Stop block; 72. Control plate; 73. Rotating plate; 74. Control rope; 741. Connecting end one; 742. Connecting end two; 8. Elastic component one; 9. Elastic component two. Detailed Implementation

[0037] 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.

[0038] like Figures 1 to 11As shown, the hoisting equipment for cap beam construction of the present invention includes a connecting plate 3 and a support frame 2. The support frame 2 is provided with lifting lugs 31, which are connected to lifting ropes 1. The end of the lifting rope 1 away from the lifting lugs 31 is firmly attached to the hook 11 of the crane. A connecting rope 03 connected to the hoist 02 is provided below the support frame 2. Two support frames 2 are provided corresponding to two hoists 02, and the two support frames 2 are symmetrically distributed at both ends of the connecting plate 3. After the crane starts, the support frame 2 is smoothly lifted by the lifting rope 1, causing the two support frames 2 to rise and fall synchronously. The support frame 2 then lifts the hoist 02 through the connecting rope 03, achieving synchronous and stable hoisting of the two hoists 02.

[0039] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 Two lifting lugs 31 are symmetrically arranged around the center of gravity above the support frame 2 to ensure that the lifting load is evenly distributed between the two lugs 31 when the crane applies force through the lifting rope 1. The symmetrical arrangement of the double lifting lugs 31 avoids unilateral tilting or uneven force distribution when the support frame 2 is lifted, keeping the support frame 2 in a horizontal position at all times. This allows the connecting rope 03 to transmit a stable force, ensuring that the clamp 02 does not shift or sway during the entire lifting process, facilitating subsequent assembly.

[0040] Reference Figure 4 , Figure 5 , Figure 6 , Figure 7 Two support frames 2 are respectively connected to both ends of the connecting plate 3. The support frames 2 and the connecting plate 3 are rotatably engaged. A push assembly 4 and a rotating assembly 5 are provided on the connecting plate 3. The push assembly 4 and the rotating assembly 5 are engaged. The rotating assembly 5 is connected to the support frame 2 to drive the support frame 2 to rotate.

[0041] Before hoisting, the end of clamp 02 facing away from connecting plate 3 remains open. After the crane is started, it lifts clamp 02 via support frame 2 and connecting rope 03. When the crane lifts clamp 02 to the preset horizontal height of pier 01, it drives connecting plate 3 to move horizontally towards pier 01. At the same time, clamp 02, which is in the open state, slowly moves along the outside of pier 01 to ensure that clamp 02 maintains a safe distance from pier 01 and smoothly fits into the outer area of ​​pier 01. When pier 01 is completely in the middle position of the two symmetrical clamps 02, connecting plate 3 drives jacking component 4 to abut against the side of pier 01. During the abutment of jacking component 4 against pier 01, jacking component 4 drives support frame 2 to rotate via rotating component 5. The rotation of support frame 2 causes the end of clamp 02 facing away from connecting plate 3 to close, so that clamp 02 is fitted onto the outside of pier 01 for subsequent fixing.

[0042] Reference Figure 3 , Figure 5 , Figure 6 The jacking assembly 4 includes a sliding plate 41 and a push plate 42. The sliding plate 41 is horizontally slidably mounted on the connecting plate 3 and is positioned horizontally. The sliding plate 41 slides on the connecting plate 3 in the direction towards the pier 01. The push plate 42 is connected to the end of the sliding plate 41 near the pier 01 and is positioned vertically on the side of the connecting plate 3 near the pier 01. The sliding plate 41 and the push plate 42 are located between the two sets of support frames 2. The sliding plate 41 cooperates with the rotating assembly 5.

[0043] Initially, the two sets of support frames 2 open, and when the connecting plate 3 is horizontally close to the pier 01, it drives the push plate 42 to move towards the pier 01 simultaneously. After the support frame 2 gradually moves to the outside of the pier 01, the push plate 42 abuts against the side of the pier 01. The connecting plate 3 continues to move, driving the sliding plate 41 to move relative to the connecting plate 3. The movement of the sliding plate 41 drives the support frame 2 to rotate through the rotating component 5, so that the clamp 02 moves towards the pier 01 while closing, until the clamp 02 closes and is fitted onto the outside of the pier 01.

[0044] Reference Figure 7 The push plate 42 is rotatably connected to the slide plate 41. The axis of rotation of the push plate 42 is arranged horizontally and perpendicular to the sliding direction of the slide plate 41. The push plate 42 is set vertically. A torsion spring (not shown in the figure) is installed at the connection between the push plate 42 and the slide plate 41. The two ends of the torsion spring are fixedly connected to the push plate 42 and the slide plate 41 respectively. Its function is to drive the push plate 42 to return to the vertical position. When the push plate 42 comes into contact with the pier 01, the relative rotational cooperation between the push plate 42 and the slide plate 41 allows the push plate 42 to adaptively conform to the side of the pier 01, thereby achieving precise adjustment of the position of the slide plate 41. In addition, the push plate 42 is designed with an arc-shaped structure, with its inner side facing the pier 01, and the arc-shaped contour of the inner side of the push plate 42 is adapted to the outer surface of the pier 01. When the connecting plate 3 moves closer to the pier 01, the inner side of the push plate 42 can form a surface contact with the pier 01. The arc-shaped structure design can increase the contact area between the two, thereby effectively improving the stability of the contact part.

[0045] Reference Figure 5 , Figure 6 , Figure 7 The rotating assembly 5 includes a rotating gear 51, an intermediate component 52, and a bevel gear set 53. The rotating gear 51 is rotatably mounted inside the connecting plate 3, and the intermediate component 52 is also located inside the connecting plate 3. The intermediate component 52 engages with the rotating gear 51, and the bevel gear set 53 is connected to the intermediate component 52 and the rotating shaft of the support frame 2, respectively. A toothed groove 411 is provided on the slide plate 41, and the toothed groove 411 is arranged along the sliding direction of the slide plate 41. The rotating gear 51 meshes with the toothed groove 411, that is, when the slide plate 41 moves, it can drive the rotating gear 51 to rotate.

[0046] When the push plate 42 abuts against the pier 01 and drives the sliding plate 41 to move, the movement of the sliding plate 41 drives the rotating gear 51 to rotate through the tooth groove 411. The rotating gear 51 drives the support frame 2 to rotate through the intermediate part 52 and the bevel gear set 53, which in turn drives the clamp 02 to rotate, so as to control its closing.

[0047] Reference Figure 6 , Figure 7 The intermediate component 52 includes: a worm 521, a worm wheel 522, and an intermediate rod 523. The worm 521 is rotatably mounted in the connecting plate 3 and is coaxially connected to the rotating gear 51. The worm wheel 522 is also rotatably mounted in the connecting plate 3. The intermediate rod 523 is coaxially arranged with the worm wheel 522, and the worm wheel 522 meshes with the worm 521. The bevel gear set 53 includes: a first bevel gear 531 and a second bevel gear 532. The first bevel gear 531 is coaxially connected to the intermediate rod 523, and the second bevel gear 532 is coaxially arranged with the rotating shaft of the support frame 2. The first bevel gear 531 and the second bevel gear 532 mesh.

[0048] When the sliding plate 41 moves, it drives the rotating gear 51 to rotate via the toothed groove 411. The rotating gear 51 drives the worm wheel 522 to rotate via the worm 521. The worm wheel 522 drives the bevel gear 531 to rotate via the intermediate rod 523. The bevel gear 531 drives the support frame 2 to rotate via the bevel gear 532. At the same time, the worm wheel 522 and the worm 521 have a self-locking property, that is, when the worm 521 is not rotating, the worm wheel 522 will not drive the worm 521 to rotate, so as to fix the position of the support frame 2. After the clamp 02 is fixed to the pier 01, the clamp 02 is separated from the support frame 2. Then the support frame 2 is lifted upward to separate it from the pier 01. Then the sliding plate 41 is pulled in the opposite direction, which will drive the support frame 2 to rotate back to the open state for the next hoisting.

[0049] Reference Figure 6 , Figure 7 Two sets of bevel gear sets 53 are provided corresponding to the two sets of support frames 2. The intermediate rod 523 is located between the two sets of bevel gear sets 53, and the two ends of the intermediate rod 523 are respectively connected to the bevel gear 531 in the two sets of bevel gear sets 53. When the intermediate rod 523 rotates, it simultaneously drives the two bevel gears 531 to rotate, which in turn drives the two support frames 2 to rotate, so as to drive the two clamps 02 to rotate synchronously.

[0050] Reference Figure 8 , Figure 9 , Figure 10 , Figure 11The support frame 2 has an installation groove 21 and a through groove 22. The through groove 22 is located below the support frame 2 and communicates with the installation groove 21, that is, the through groove 22 is located on the side of the support frame 2 near the clamp 02. A connecting block 6 is provided in the installation groove 21. The connecting block 6 is slidably assembled in the installation groove 21. The end of the connecting rope 03 away from the clamp 02 passes through the through groove 22 and connects to the connecting block 6. The installation groove 21 includes an inclined part 211, which is inclined downward at the end near the pier 01. An inclined surface is provided below the connecting block 6. The inclined surface of the connecting block 6 is adapted to the inclined part 211, and the connecting block 6 slides against the inclined part 211 through the inclined surface. A control component 7 is provided on the support frame 2 to limit the position of the connecting block 6.

[0051] During the closing phase of the clamp 02 installation, to fundamentally avoid direct hard collisions and scratches between the clamp 02 body and the side of the pier 01, and to prevent deformation of the clamp 02 or damage to the surface of the pier 01 due to collisions, a safety gap of a reasonable size must be pre-reserved between the inner side of the clamp 02 and the outer surface of the pier 01. After the receiving frame 2 drives the two clamp 02 to complete the initial closing and positioning, the control component 7 installed on the receiving frame 2 releases the mechanical limiting constraint on the connecting block 6. Under the synergistic effect of the clamp 02's own gravitational potential energy and the guide structure of the inclined part 211, the connecting block 6 will slide downward along the inclined direction of the inclined part 211. During the sliding process, the connecting block 6 drives the two clamps 02 to move laterally towards the pier 01 side simultaneously through the connecting rope 03, thereby driving the clamp 02 body to gradually fit against the outer surface of the pier 01, and finally aligning the ends of the two clamps 02.

[0052] After the ends of the two clamps 02 are aligned, the operator uses a high-strength bolt and nut assembly to pre-fix the joint of the clamps 02, initially limiting their displacement. Additionally, when the connecting block 6 slides to the bottom of the inclined section 211 and stops sliding, a pre-set fine-tuning gap must still be maintained between the inner surface of the clamp 02 and the outer surface of the pier 01. This fine-tuning gap is designed to provide adjustment space for subsequent fixing operations, allowing the operator to finely calibrate the installation accuracy parameters of the clamps 02, such as horizontality, coaxiality, and verticality, by adjusting the tightness of the bolts and nuts. Finally, by tightening the bolts and nuts, the two clamps 02 are securely, accurately, and reliably fixed to the designated installation position on the pier 01, ensuring that the overall stability and load-bearing capacity of the clamp installation meet design requirements.

[0053] Reference Figure 8 , Figure 9 , Figure 10 , Figure 11The control component 7 includes: a stop block 71, a control plate 72, a rotating plate 73, and a control rope 74. The stop block 71 is slidably mounted in the mounting groove 21. The control plate 72 is located at the end of the receiving frame 2 away from the connecting plate 3 and is slidably mounted on the receiving frame 2. The rotating plate 73 is rotatably mounted inside the receiving frame 2. One end of the control plate 72 is located outside the receiving frame 2, and the other end extends into the receiving frame 2 and abuts against the rotating plate 73. One end of the control rope 74 is connected to the top of the stop block 71, and the other end is connected to the rotating plate 73. The control rope 74 is connected to the end of the rotating plate 73 away from the control plate 72, and the control plate 72 and the control rope 74 are located on both sides of the rotating plate 73.

[0054] Initially, the side of connecting block 6 closest to the other support frame 2 abuts against the stop block 71, at which point the stop block 71 restricts the position of the abutting block. When the support frames 2 close, the ends of the two support frames 2 abut against each other, simultaneously pushing the control plate 72 to move towards the interior of the support frame 2. As the control plate 72 moves, it pushes the rotating plate 73 to rotate. While rotating, the rotating plate 73 pulls the control rope 74, which, under the action of traction, drives the stop block 71 fixed to it to move smoothly upward in the vertical direction. During this process, the stop block 71 gradually disengages from the abutting state with the connecting block 6 until the constraint on the connecting block 6 is completely released. After the constraint is released, the connecting block 6, under the guiding action of the inclined part 211 and the combined action of the weight of the clamp 02, slides along the preset slope of the inclined part 211, simultaneously driving the clamp 02 to gradually approach the pier 01 in the horizontal direction.

[0055] Reference Figure 8 , Figure 9 Elastic element 8 and elastic element 9 are installed in the mounting groove 21. Both elastic element 8 and elastic element 9 are springs. The two ends of elastic element 8 are connected to the connecting block 6 and the inner wall of the mounting groove 21, respectively. Elastic element 8 is located on the side of the connecting block 6 away from the pier 01. Elastic element 8 is used to drive the connecting block 6 to move in the direction away from the pier 01. Elastic element 9 is sleeved on the outside of the control rope 74. The two ends of elastic element 9 are connected to the inner wall of the mounting groove 21 and the stop block 71, respectively. Elastic element 9 is set in the vertical direction. Elastic element 9 is used to drive the stop block 71 to move downward.

[0056] When the connecting rope 03 is not connected to the clamp 02, the elastic element 8 moves the connecting block 6 away from the other support frame 2, and moves the connecting block 6 past the stop block 71 and to the side of the stop block 71 away from the other support frame 2. At the same time, the elastic element 9 moves the stop block 71 to the moving trajectory of the connecting block 6. When the connecting rope 03 is connected to the clamp 02 and the clamp 02 is being hoisted, the gravity of the clamp 02 causes the connecting block 6 to slide downwards and abut against the side of the stop block 71, which then restricts the connecting block 6. After the clamp 02 is hoisted and fixed, the connecting rope 03 is separated from the clamp 02, and the elastic element 8 can move the connecting block 6 back to its initial position so that the clamp 02 can be hoisted again.

[0057] A guide slope is provided below the stop block 71, and the guide slope is set towards the bottom of the inclined part 211. When the elastic member 8 drives the connecting block 6 to move upward, the connecting block 6 can abut against the guide slope of the stop block 71, so that the connecting block 6 can pass over the stop block 71 through the guide slope, and avoid the stop block 71 interfering with the resetting of the connecting block 6.

[0058] Reference Figure 11 Each receiving frame 2 is equipped with two sets of stop blocks 71, connecting blocks 6, and connecting ropes 03. The two sets of connecting ropes 03 are connected to different positions on the clamps 02. The sliding directions of the two connecting blocks 6 on the receiving frame 2 are parallel to each other. The control rope 74 includes a first connecting end 741 and a second connecting end 742, wherein the first connecting end 741 and the second connecting end 742 are respectively located at the end of the control rope 74 away from the rotating plate 73, and the first connecting end 741 and the second connecting end 742 are respectively connected to the two sets of stop blocks 71.

[0059] When the rotating plate 73 rotates and pulls the control rope 74, the control rope 74 pulls the two sets of stop blocks 71 to move simultaneously through the first connection end 741 and the second connection end 742, thereby simultaneously releasing the restriction on the two sets of connecting blocks 6 on the receiving frame 2. When the receiving frame 2 comes into contact, the connecting blocks 6 drive the two clamps 02 to move closer to the pier 01 in sync.

[0060] The implementation principle of this invention is as follows: In the initial state, two sets of symmetrically arranged support frames 2 are in a preset open state and fixed. During the hoisting operation, the lifting equipment is connected to the lifting lugs 31 on the top of the support frame 2 via the lifting rope 1 to achieve overall hoisting. The support frame 2 is connected to the clamp 02 via the connecting rope 03. Since the support frame 2 is in an open state, and the opening range is greater than the maximum cross-sectional dimension of the pier 01, operating space is reserved for subsequent installation operations.

[0061] After the connecting plate 3 rises to the preset height during the hoisting operation, the horizontal displacement operation of the lifting equipment drives the connecting plate 3 to move horizontally towards the pier 01. This, in turn, drives the two sets of clamps 02 to move smoothly along the side of the pier 01 via the supporting frame 2. When the clamps 02 have completely moved to the preset sleeve area outside the pier 01, the push plate 42 on the side of the supporting frame 2 closest to the pier 01 abuts against the outer wall of the pier 01. The push plate 42, subjected to the reaction force of the pier 01, drives the sliding plate 41 to move. The movement of the sliding plate 41 drives the rotating gear 51 to rotate via the toothed groove 411 on its side. The rotating gear 51 transmits power through the coaxially connected worm 521. The worm 521 meshes with the worm wheel 522 to achieve a change in the direction of motion. The worm wheel 522 then transmits torque to the rotating shaft of the supporting frame 2 via the bevel gear set 53, ultimately driving the two sets of supporting frames 2 to rotate synchronously around the rotating shaft towards the pier 01.

[0062] When the support frame 2 reaches its fully closed state, the free ends of the two sets of support frames 2 facing away from the connecting plate 3 abut against each other. At this time, the line connecting the centers of the two clamps 02 coincides with the central axis of the pier 01. Simultaneously with the abutting of the ends of the support frames 2, the control plates 72, positioned at corresponding locations on the two sets of support frames 2, press against each other and are simultaneously pushed into the interior of the support frames 2. The movement of the control plates 72 drives the rotating plate 73 to rotate, and the other end of the rotating plate 73 pulls the control rope 74, which in turn drives the stop block 71 to move upwards in the vertical direction. When the stop block 71 separates from the connecting block 6, the locking restriction on the connecting block 6 is released. Under the action of the inclined part 211, the connecting block 6 slides downwards at an angle. The connecting block 6, through the connecting rope 03, drives the clamps 02 to move further closer to the pier 01, ultimately aligning the mating ends of the two clamps 02 to form a complete annular clamping structure, providing a stable assembly reference for subsequent fixing and installation using bolts and other fasteners. By setting up a support frame 2 and a connecting plate 3, the present invention keeps the clamp 02 in an open state during the initial stage of hoisting, which can avoid interference with the pier 01 and ensure that the clamp 02 can be smoothly moved to the sleeve position through the side of the pier 01, thereby improving the hoisting efficiency and hoisting accuracy of the clamp 02.

[0063] 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 hanger hoisting apparatus for bent cap construction, characterized by, The application relates to a bridge pier hoisting device. The pushing assembly is connected with the support frame through the rotating assembly; during hoisting, the end of the support frame away from the connecting plate is in an open state; when the connecting plate drives the pushing assembly to abut against the bridge pier, the pushing assembly drives the support frame to rotate and close through the rotating assembly, thereby dragging the hoops to close and be sleeved outside the bridge pier; The pushing assembly comprises a sliding plate slidably arranged on the connecting plate and a pushing plate arranged at the end of the sliding plate close to the bridge pier; the pushing plate is arranged on the side of the connecting plate close to the bridge pier and is arranged in the vertical direction; the sliding plate is matched with the rotating assembly. The rotating assembly comprises a rotating gear rotatably arranged in the connecting plate, an intermediate part matched with the rotating gear, and a bevel gear set connected with the intermediate part and the rotating shaft of the support frame; a tooth groove matched with the rotating gear is arranged on the sliding plate in the sliding direction of the sliding plate; when the sliding plate slides, the bevel gear set is driven to rotate through the rotating gear and the intermediate part, so as to drive the support frame to rotate.

2. The hanger hoisting apparatus for bent cap construction according to claim 1, characterized by The support frame is provided with an installation groove and a through groove arranged at the bottom of the support frame and communicated with the installation groove; a connecting block is slidably arranged in the installation groove; the connecting rope passes through the through groove and is connected with the connecting block; the installation groove comprises an inclined part arranged downward at the end close to the bridge pier; the connecting block is slidably abutted with the inclined part; the support frame is provided with a control assembly for limiting the position of the connecting block; the control assembly comprises a stopper slidably arranged in the installation groove, a control plate slidably arranged at the end of the support frame away from the connecting plate, a rotating plate rotatably arranged in the support frame, and a control rope connected with the stopper and the rotating plate; the end of the control plate extends into the support frame and is abutted with the rotating plate; the end of the control rope away from the control plate is connected with the rotating plate; after the hoops are sleeved outside the bridge pier, the ends of the two support frames away from the connecting plate abut with each other; when the two support frames close, the control plate moves and drives the rotating plate to rotate; then the control rope pulls the stopper to move upward and separate from the connecting block, thereby releasing the limitation on the connecting block; under the action of the inclined part, the connecting block slides close to the bridge pier, so that the two hoops move close to each other synchronously.

3. The hooke lifting device for bent cap construction according to claim 1, characterized in that, The intermediate part comprises a worm coaxially arranged with the rotating gear, a worm wheel matched with the worm, and an intermediate rod coaxially arranged with the worm wheel; the bevel gear set comprises a first bevel gear coaxially arranged with the intermediate rod and a second bevel gear coaxially arranged with the rotating shaft of the support frame; the first bevel gear is matched with the second bevel gear.

4. The hooke lifting device for bent cap construction according to claim 1, characterized in that, Elastic members one and two are arranged in the installation groove; the elastic member one is connected with the side of the connecting block away from the bridge pier to drive the connecting block to move away from the bridge pier; the elastic member two is sleeved outside the control rope and connected with the stopper; the elastic member two is used for driving the stopper to move downward; when the stopper is abutted with the side of the connecting block away from the elastic member one, the position of the connecting block is fixed. Each support frame is provided with two groups of stoppers, two groups of connecting blocks, and two groups of connecting ropes; the two groups of connecting ropes are connected with different positions on the hoops; the sliding directions of the two connecting blocks are parallel; the control rope comprises connecting ends one and two connected with the two groups of stoppers; when the two support frames abut, the connecting blocks drive the two hoops to move close to the bridge pier synchronously.

5. The hanger hoisting apparatus for bent cap construction according to claim 2, characterized by The two groups of bevel gear sets are correspondingly arranged with two groups of bearing frames, and the middle rod is located between the two groups of bevel gear sets, and the two ends of the middle rod are respectively connected with the bevel gears in the two groups of bevel gear sets.

6. The hooke lifting device for bent cap construction according to claim 1, wherein The push plate and the sliding plate are rotationally connected, the rotation axis of the push plate is arranged in a horizontal direction, the rotation axis of the push plate is perpendicular to the sliding direction of the sliding plate, and a torsion spring for driving the push plate to rotate to a vertical state is arranged between the push plate and the sliding plate.

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