A prefabricated pier column reinforcement cage hoisting device

Abstract

A prefabricated pier column reinforcement cage hoisting device belongs to the technical field of reinforcement cage hoisting and is used for hoisting a reinforcement cage from a horizontal state to a vertical state and comprises an arc-shaped abutting plate, a support assembly, a rotating shaft, a gas cylinder, a driving block, a rack and an incomplete gear. The arc-shaped abutting plate is arc-shaped, is placed on the upper surface of the reinforcement cage in a close contact manner, and has a cross-sectional arc length of one fourth to one half of the circumference of the reinforcement cage. The continuous radial limiting of the reinforcement cage by the arc-shaped abutting plate eliminates the circumferential relative rotation of traditional double lifting points, improves the posture conversion stability and construction safety, the arc-shaped abutting plate with a semi-arc-shaped structure is in close contact with reinforcement cages with different diameters through surface contact, and the limiting stability and specification compatibility are taken into account, the independent driving system of the arc-shaped abutting plate actively adapts to the posture change of the reinforcement cage, and the risk of lagging or disengagement of passive following is avoided, and the two groups of adjustable lifting points break through the limitation at the cross intersection.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of reinforcing cage hoisting, and particularly relates to a prefabricated pier column reinforcing cage hoisting device. BACKGROUND

[0002] The reinforcing cage of a prefabricated pier column is a cage-shaped structure formed by binding or welding steel bars, and is a force skeleton of the pier column, providing tensile strength for concrete. It is usually horizontally manufactured in a prefabrication yard, and needs to be adjusted from a horizontal state to a vertical state by hoisting equipment to accurately butt joint the pier column foundation and complete subsequent pouring work.

[0003] In related technology (Chinese patent with publication number CN222042372U), a hoisting device for a pier column reinforcing cage frame is disclosed, which includes a strip beam as an intermediate support body, a lug arranged on the strip beam, and a connecting binding seat device arranged on the strip beam. Through the lug, hook connection with a gantry crane is achieved. Through the connecting binding seat device, connection with the pier column reinforcing cage frame is achieved. Through the strip beam, the connecting binding seat device is supported in an elongated line body, and the pier column reinforcing cage frame is kept in a state of multiple points having the same hoisting force. The technical problem of deformation of the pier column reinforcing cage frame caused by the use of two gantry cranes and the connection of the hook of one of the gantry cranes with one end of the pier column reinforcing cage frame and the connection of the hook of the other gantry crane with the other end of the pier column reinforcing cage frame is solved, thereby improving the forming effect of the prefabricated pier column.

[0004] As shown in Figure 12 , in the existing reinforcing cage hoisting process, the main hook of the crane hooks the left end of the reinforcing cage (point 1), and the auxiliary hook hooks two lifting points (point 2 and point 3) on the right side of the reinforcing cage, and the posture conversion of the reinforcing cage from a horizontal state to a vertical state is realized through the coordinated action of the main hook and the auxiliary hook. In the above hoisting method, the two lifting points (point 2 and point 3) hooked by the auxiliary hook are prone to relative rotation in the stress process, i.e., relative angular displacement around the axis of the reinforcing cage, resulting in unexpected twisting of the reinforcing cage during posture conversion, which cannot guarantee the stability of the posture during hoisting and poses potential risks to the stability of the reinforcing cage and construction safety. SUMMARY

[0005] In view of the problem that the two lifting points hung by the existing technology crane auxiliary hook are prone to circumferential relative rotation around the steel reinforcement cage axis when under stress, resulting in unexpected torsion in the steel reinforcement cage posture conversion stage, and unable to guarantee the lifting stability, and posing potential risks to the stability of the steel reinforcement cage and the construction safety, the present application provides a precast pier column steel reinforcement cage lifting device, an arc-shaped constraint structure limits the circumferential degree of freedom of the steel reinforcement cage through continuous radial force, effectively eliminating the relative angular displacement during traditional double-lifting-point lifting, ensuring the structural integrity and motion stability of the steel reinforcement cage during the whole process of posture conversion realized by the main hook and the auxiliary hook in cooperation, fundamentally avoiding unexpected torsion caused by the circumferential rotation of the lifting point, and significantly improving the stability and construction safety in the lifting posture conversion stage.

[0006] A precast pier column steel reinforcement cage lifting device for lifting the steel reinforcement cage from a horizontal state to a vertical state, comprising: an arc-shaped abutting plate, a support assembly, a rotating shaft, a gas cylinder, a driving block, a rack and an incomplete gear, the arc-shaped abutting plate is arc-shaped, and the arc-shaped abutting plate is placed on the upper surface of the steel reinforcement cage, the arc length of the cross section of the arc-shaped abutting plate is one-fourth to one-half of the circumference of the steel reinforcement cage; the support assembly provides support on the arc-shaped abutting plate; the rotating shaft is rotationally arranged at the support assembly in the front-rear direction; the gas cylinder is arranged in the vertical direction; the driving block is fixedly installed at the bottom end of the gas cylinder; the rack is fixedly installed on the left side wall of the driving block; the incomplete gear is fixedly installed on the front end of the rotating shaft, the incomplete gear is meshingly connected with the rack, and the number of teeth on the incomplete gear accounts for one-fourth of the circumferential length of the incomplete gear itself.

[0007] The support assembly comprises: a vertical arm, a rotating seat, a first connecting block, a first support arm, a second support arm and a first guide seat, the vertical arm is arranged in the vertical direction, and the vertical arm is arranged in an L shape, and the rotating shaft is rotationally connected to the bottom end of the vertical arm; the rotating seat is fixedly installed on the rotating shaft; the first connecting block is fixedly installed at the bottom end of the rotating seat, and the first connecting block is fixedly connected with the middle part of the upper surface of the arc-shaped abutting plate; one end of the first support arm is fixedly connected with the vertical arm, and the gas cylinder is installed on the first support arm; one end of the second support arm is fixedly connected with the vertical arm; the first guide seat is arranged in the vertical direction, and the other end of the first support arm and the other end of the second support arm are both fixedly connected with the first guide seat, and the rack is slidably embedded in the inner cavity of the first guide seat in the vertical direction.

[0008] In the above technical solution, the arc-shaped abutting plate is arranged at the right-central position of the steel reinforcement cage.

[0009] The technical scheme further includes a symmetric adjustment system, which comprises an arc-shaped positioning plate, an arc-shaped groove, an arc-shaped guide frame, a hoisting assembly, a driving rod and a lifting frame, the arc-shaped positioning plate is arranged in an arc shape, is connected with the reinforcement cage through an assembling assembly, and is arranged in a half-arc shape; the arc-shaped groove is formed through the arc-shaped positioning plate, and is arranged in an arc shape; after the arc-shaped groove is formed through the arc-shaped positioning plate, the arc-shaped guide frame is formed on the outer wall edge of the arc-shaped positioning plate; the hoisting assembly is arranged in two groups, and the two groups of hoisting assemblies are symmetrically arranged and slidably arranged on the arc-shaped guide frame; one end of the driving rod is connected with the hoisting assembly; the lifting frame is provided with a through cavity formed through from front to back, and the other end of the driving rod is slidably embedded in the inner cavity of the lifting frame, and the lifting frame is displaced in the vertical direction.

[0010] In the technical scheme, the symmetric adjustment system further comprises a mounting frame, a second guide seat, a lifting block and a lead screw, the mounting frame is fixedly installed on the front side wall of the arc-shaped positioning plate, and the arc-shaped positioning plate is arranged in a U shape; the second guide seat is arranged in two groups, and the two second guide seats are vertically arranged on the mounting frame in a left-right symmetric manner, and the two ends of the lifting frame are slidably embedded in the inner cavities of the second guide seats; the lifting block is fixedly installed on the front side wall of the lifting frame; the lead screw is rotatably connected to the middle part of the mounting frame in the vertical direction, and the lifting block is threadedly sleeved on the lead screw.

[0011] In the technical scheme, each group of hoisting assemblies comprises a sliding block and a lifting hook, the sliding block is slidably sleeved on the arc-shaped guide frame, and one end of the driving rod is fixedly connected with the side wall of the sliding block; the lifting hook is fixedly installed on the sliding block.

[0012] In the technical scheme, the assembling assembly comprises a second connecting block, a vertical groove, a through hole, a U-shaped positioning rod and a positioning nut, the second connecting block is arranged in two groups, and the two second connecting blocks are symmetrically installed on the inner wall middle part of the arc-shaped positioning plate in a front-rear manner, and the two second connecting blocks form a positioning space at the bottom end of the inner wall of the arc-shaped positioning plate; the vertical groove is formed through the second connecting block in the vertical direction; the through hole is formed through the second connecting block, and two groups of through holes are formed on each second connecting block; the U-shaped positioning rod is inserted into the inner cavity of the through hole from front to back, the rear end of the U-shaped positioning rod is provided with external threads, and the U-shaped positioning rod is arranged in a U shape; the positioning nut is arranged in two groups, and the two positioning nuts are threadedly sleeved on the two ends of the rear side of the U-shaped positioning rod.

[0013] In the technical scheme, the locking assembly is arranged on the lead screw, and the locking assembly comprises an extension table, a positioning rod, a spring, a fixing disc and positioning grooves, the extension table is fixedly installed on the lead screw, the positioning rod is slidably penetrated through the extension table in the vertical direction, the spring is sleeved on the positioning rod, and two ends of the spring are connected with the positioning rod and the extension table respectively, the fixing disc is fixedly installed on the mounting frame, and the center of the fixing disc is coincident with the center of the lead screw, the positioning grooves are arranged in plurality, and the positioning grooves are equidistantly arranged on the upper surface of the fixing disc in the circumferential direction, and the bottom end of the positioning rod is embedded in the inner cavity of one of the positioning grooves.

[0014] In the technical scheme, the crane device is further arranged, and the crane device comprises a first lifting rope, a second lifting rope, a crane arm, a main hook, a first auxiliary hook and a second auxiliary hook, the first lifting rope is connected with the two hooks, the second lifting rope is connected with the top end of the vertical arm, the main hook, the first auxiliary hook and the second auxiliary hook are arranged on the crane arm respectively, the main hook is connected with the first lifting rope, the first auxiliary hook is connected with the second lifting rope, and the second auxiliary hook is connected with the right part of the middle part of the reinforcement cage.

[0015] Compared with the prior art, the prefabricated pier column reinforcement cage hoisting device has the beneficial effects that:

[0016] I. For the problem that the two lifting points hung by the crane auxiliary hook are prone to relative rotation around the axis of the reinforcement cage under stress in the existing hoisting mode, resulting in unexpected torsion in the posture conversion stage of the reinforcement cage, and the hoisting stability cannot be guaranteed, and potential risks are caused to the stability of the reinforcement cage and the construction safety, in the hoisting process of the reinforcement cage, the side wall always maintains the abutting limiting state with the arc-shaped abutting plate, the arc-shaped constraint structure limits the circumferential degree of freedom of the reinforcement cage through the continuous radial force, effectively eliminates the relative angular displacement in the traditional double-lifting-point hoisting, ensures that the reinforcement cage maintains the structural integrity and motion stability in the whole process of the posture conversion realized by the main hook and the auxiliary hook, fundamentally avoids the unexpected torsion caused by the circumferential rotation of the lifting point, and significantly improves the stability and construction safety in the hoisting posture conversion stage.

[0017] Secondly, in the application, the arc-shaped abutting plate adopts a semi-arc structure that matches the shape of the steel reinforcement cage, and the arc curvature matches the outer wall profile of the steel reinforcement cage, so that the arc-shaped abutting plate can form a close abutment in the whole stroke of the attitude conversion of the steel reinforcement cage, and the limiting force is transmitted through surface contact to ensure effective constraint on the circumferential rotation of the steel reinforcement cage; at the same time, compared with a straight plate, the semi-arc structure of the arc-shaped abutting plate can closely match the side wall of the steel reinforcement cage with different diameters to the greatest extent, and can adapt to the attitude conversion requirements of different specifications of the steel reinforcement cage with different size differences in the shape, which avoids the limitation of the adaptation of the diameter of the steel reinforcement cage, and ensures the limiting stability through the close characteristics of the arc-shaped abutting plate, and realizes the organic unification of functionality and universality.

[0018] Thirdly, in the application, the driving system composed of the air cylinder, the rack and the incomplete gear is configured, so that after the completion of one stroke driving at the output end of the air cylinder, the arc-shaped abutting plate can be actively adjusted from the horizontal state to the vertical state; the setting gives the arc-shaped abutting plate independent attitude driving capability, so that the arc-shaped abutting plate always maintains a stable abutting support attitude in the state conversion process of the steel reinforcement cage, compared with the mode of relying on the change of the attitude of the steel reinforcement cage to drive the passive rotation of the arc-shaped abutting plate to maintain abutment, the active driving mechanism can actively adapt to the attitude change of the steel reinforcement cage, significantly improves the continuous support reliability of the arc-shaped abutting plate to the steel reinforcement cage, provides more stable constraint support for the steel reinforcement cage in the whole process of attitude adjustment, and effectively avoids the risk of support lag or disengagement that may occur in the passive following mode.

[0019] Fourthly, in the application, the incomplete gear adopts an incomplete gear structure, and forms a meshing transmission system with the rack, so that when the rack driven by the air cylinder completes the preset stroke, the attitude conversion of the arc-shaped abutting plate from the horizontal state to the vertical state can be accurately realized through the meshing transmission of the half gear and the rack; the stroke control in the conversion process adopts a double protection mechanism: first, the end position accuracy of the attitude conversion is ensured through the mechanical locking characteristics by means of the tooth meshing limiting relationship between the driving block and the rack, and second, the upper limit control of the stroke is realized through the preset of the stroke length parameter of the air cylinder output end. The two work together to form a double constraint of mechanical hard limiting and driving source stroke control, which effectively ensures the stroke accuracy and action reliability of the attitude conversion process of the arc-shaped abutting plate, and avoids overtravel or undertravel phenomenon;

[0020] Five, the existing crane main hook and the left side of the reinforcement cage are connected with the lifting point in a fixed structure, once the connection position is determined, it cannot be adjusted, and the lifting point can only be hooked on the cross node of the reinforcement cage, since the cross node is not necessarily the optimal lifting point of the reinforcement cage, the adjustment flexibility of the lifting point position is limited, and the position of the lifting point relative to the reinforcement cage directly affects the lifting stability; in order to solve the problem, two groups of lifting point mechanisms that can be adjusted relative to each other are arranged in the connection area corresponding to the main hook on the left side of the reinforcement cage, which breaks through the limitation that the lifting point can only be arranged at the cross node, and can flexibly select and lock the optimal lifting point according to the structural characteristics of the reinforcement cage and the lifting condition, so that the adjustability of the lifting point position is improved, and the stability of the reinforcement cage during the whole lifting process is ensured;

[0021] Six, in the present application, the two groups of lifting hooks can realize symmetrical displacement adjustment relative to the reinforcement cage, that is, through the synchronous adjustment mechanism, it is ensured that the two groups of lifting hooks still maintain symmetrical distribution after flexible displacement, so that the stress symmetry and structural stability of the two lifting points in the subsequent lifting process are ensured; at the same time, the two groups of lifting hooks can be adjusted in the circumferential direction relative to the arc-shaped guide frame, and can be locked at any circumferential position of the arc-shaped guide frame after adjustment, through the synergistic effect of symmetrical adjustment constraint and circumferential free positioning, the symmetry of the relative position of the two groups of lifting hooks and the stability of the position after adjustment are ensured, and the degree of freedom of position adjustment is also given, which can accurately adapt to the optimal lifting point requirement of the reinforcement cage, and the flexibility and adaptability of the lifting point selection are improved;

[0022] Seven, in the present application, the rotation movement of the lead screw drives the lifting frame to realize vertical displacement adjustment, and cooperates with the arc-shaped limiting structure of the arc-shaped groove and the arc-shaped guide frame to form a synchronous symmetrical adjustment mechanism for the two groups of lifting hooks, the two groups of lifting hooks are adjusted in relative position by using the same driving power source, the relative position accuracy and symmetry of the two groups of lifting hooks after adjustment can be ensured through the rigid synchronous characteristics of mechanical transmission, compared with the way of adjusting the two groups of lifting hooks independently, the cooperative adjustment design can effectively avoid the position deviation caused by separate adjustment, and the consistency and certainty of the relative position of the two groups of lifting hooks are improved, and reliable guarantee is provided for the stress balance in the subsequent lifting process;

[0023] Eight, in the present application, a rotation locking mechanism is arranged for the lead screw: the mechanical locking positioning of the lead screw after rotation adjustment is realized through the cooperation of the positioning rod and the positioning groove, and combined with the self-locking characteristics of the lead screw, a double fixing mechanism is formed, which can ensure that the lead screw remains stable after completing the rotation adjustment, and then the lifting hooks adjusted by the lead screw realize rigid positioning, effectively avoiding the position deviation of the lifting hooks caused by external disturbance in the lifting process, and providing reliable guarantee for the position stability of the lifting hooks in the whole lifting process;

[0024] Nine, in the application, the connection of the arc-shaped positioning plate and the reinforcement cage adopts an integrated positioning assembly composed of a second connecting block, a vertical groove, a U-shaped positioning rod, a positioning nut and the like, to realize multi-dimensional locking function: on the one hand, the mechanical structure restricts the front-back direction displacement of the arc-shaped positioning plate on the reinforcement cage, and on the other hand, the circumferential limiting structure limits the rotation freedom of the arc-shaped positioning plate around the axis of the reinforcement cage; the setting integrates the axial and circumferential locking functions in the same set of positioning assembly, without the need for additional setting of multiple independent locking mechanisms, which not only simplifies the assembly process of the arc-shaped positioning plate and the reinforcement cage, but also improves the overall stability and reliability of the connecting structure through multi-dimensional collaborative restriction;

[0025] To sum up, the application eliminates the relative rotation of the traditional double lifting points in the circumferential direction through the continuous radial limiting of the arc-shaped abutment plate on the reinforcement cage, improves the posture conversion stability and construction safety; the arc-shaped abutment plate with a semi-arc structure is fitted to different caliber reinforcement cages through surface contact, taking into account the limiting stability and specification compatibility; the self-driven system of the arc-shaped abutment plate actively adapts to the posture change of the reinforcement cage, avoiding the risk of passive following support lagging or disengaging; the double stroke control mechanism ensures the accuracy and reliability of the posture conversion of the arc-shaped abutment plate; the adjustable two sets of lifting points break through the limitation at the cross intersection, improving the lifting stability and point position adjustability; the symmetrical adjustment and circumferential positioning of the two sets of lifting hooks ensure symmetrical and stable stress, adapting to the optimal lifting point demand; the synchronous adjustment mechanism driven by the same power source avoids position deviation and ensures balanced lifting stress; the double locking mechanism of the lead screw ensures the stability of the hook position and prevents external force deviation; the integrated positioning assembly realizes multi-dimensional locking of the arc-shaped positioning plate and the reinforcement cage, simplifies assembly and improves connection stability, and the application comprehensively improves the stability, safety, adaptability and operation convenience of the reinforcement cage lifting. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 Fig. 1 is a structural schematic diagram of the reinforcement cage in the horizontal state of the embodiment 1 of the application;

[0027] Figure 2 Fig. 2 is a structural schematic diagram of the arc-shaped abutment plate of the embodiment 1 of the application;

[0028] Figure 3 Fig. 3 is a structural schematic diagram of the vertical arm of the embodiment 1 of the application;

[0029] Figure 4 Fig. 4 is a structural schematic diagram of the reinforcement cage when lifted to the vertical state of the embodiment 1 of the application;

[0030] Figure 5 Fig. 5 is a structural schematic diagram of the half gear of the embodiment 1 of the application;

[0031] Figure 6 Fig. 6 is a structural schematic diagram of the lifting frame of the embodiment 1 of the application;

[0032] Figure 7 is an enlarged view of A in Fig. 1; Figure 6 is an enlarged view of A in Fig. 1;

[0033] Figure 8 is a structural schematic diagram of the vertical slot of the embodiment 1 of the present application;

[0034] Figure 9 is a structural schematic diagram of the positioning nut of the embodiment 1 of the present application;

[0035] Figure 10 is a structural schematic diagram of the vertical arm of the embodiment 2 of the present application;

[0036] Figure 11 is a structural schematic diagram of the screw rod of the embodiment 2 of the present application;

[0037] Figure 12 is a schematic diagram of the prior art steel wire cage hoisting method;

[0038] Figures 1 to 11 In the figure, 1, steel cage, 2, arc abutting plate, 3, vertical arm, 4, rotating shaft, 5, rotating seat, 6, first connecting block, 7, first supporting arm, 8, second supporting arm, 9, first guide seat, 10, air cylinder, 11, driving block, 12, rack, 13, incomplete gear, 14, arc positioning plate, 15, arc-shaped slot, 16, arc-shaped guide frame, 17, sliding block, 18, lifting hook, 19, driving rod, 20, mounting frame, 21, second guide seat, 22, lifting frame, 23, lifting block, 24, screw rod, 25, extension platform, 26, positioning rod, 27, spring, 28, fixed disc, 29, positioning slot, 30, second connecting block, 31, vertical slot, 32, through hole, 33, U-shaped positioning rod, 34, positioning nut, 35, first hoisting rope, 36, second hoisting rope, 37, crane arm, 38, main hook, 39, first auxiliary hook, 40, second auxiliary hook. DETAILED DESCRIPTION

[0039] The present application will be further described below in conjunction with specific implementation cases and the accompanying drawings. Figures 1 to 11 The present application will be further described below in conjunction with specific implementation cases and the accompanying drawings.

[0040] Embodiment 1

[0041] Reference will be made mainly to Figures 1 to 9The illustrated precast pier column reinforcement cage hoisting device is used for hoisting the reinforcement cage 1 from a horizontal state to a vertical state, and comprises an arc-shaped abutting plate 2, a support assembly, a rotating shaft 4, a gas cylinder 10, a driving block 11, a rack 12 and an incomplete gear 13. The arc-shaped abutting plate 2 is arc-shaped, is placed on the upper surface of the reinforcement cage 1, and is used for providing abutting force when the reinforcement cage 1 is hoisted from the horizontal state to the vertical state. The arc length of the cross section of the arc-shaped abutting plate 2 is one fourth to one half of the circumference of the reinforcement cage 1. In this range, the arc-shaped abutting plate 2 can stably abut and constrain the reinforcement cage 1 during attitude adjustment, effectively suppresses the distortion and inclination of the reinforcement cage 1, avoids movement interference between the arc-shaped abutting plate 2 and the reinforcement cage 1 during attitude adjustment due to an excessively large arc length, prevents installation and disassembly difficulties caused by an arc length exceeding one half of the circumference of the reinforcement cage 1, and balances the constraint effectiveness and operation convenience. The support assembly provides support on the arc-shaped abutting plate 2 and provides support capability for subsequent rotation of the arc-shaped abutting plate 2. The rotating shaft 4 is rotationally arranged at the support assembly in the front-rear direction. The gas cylinder 10 is arranged in the vertical direction. The gas cylinder 10 used in the application is a commonly used self-locking gas cylinder on the market, the output end of which can stop at any position and be locked, which can meet the above use requirements. The general type of the prior art is used, and the type of the above-mentioned existing components is not limited and is not excessively described. The driving block 11 is fixedly installed at the bottom end of the gas cylinder 10. The rack 12 is fixedly installed on the left side wall of the driving block 11. The incomplete gear 13 is fixedly installed at the front end of the rotating shaft 4. The incomplete gear 13 is in meshing connection with the rack 12. The driving block 11 and the rack 12 are moved in the vertical direction by the gas cylinder 10, so that the incomplete gear 13 can be adjusted to rotate in the circumferential direction. The number of teeth on the incomplete gear 13 accounts for one fourth of the circumferential length of the incomplete gear 13, so that the incomplete gear 13 can only be adjusted to rotate clockwise or counterclockwise by 90 degrees, and the subsequent arc-shaped abutting plate 2 is adjusted to rotate clockwise or counterclockwise by 90 degrees, so that the reinforcement cage 1 is abutted and supported in the whole process of the horizontal state or the vertical state. Specifically, the incomplete gear 13 adopts a half gear structure, and the rack 12 forms a meshing transmission system.When the rack 12 of the cylinder 10 completes the preset stroke, the posture conversion of the arc-shaped abutment plate 2 from the horizontal state to the vertical state can be accurately realized through the meshing transmission of the half gear and the rack; the stroke control of the conversion process adopts a double safeguard mechanism: on the one hand, the mechanical locking characteristics are used to ensure the accuracy of the posture conversion end position by virtue of the tooth meshing limiting relationship between the driving block 11 and the rack 12; on the other hand, the stroke upper limit is controlled through the preset stroke length parameter of the output end of the cylinder 10, and the two mechanisms work together to form the double constraints of mechanical hard limiting and driving source stroke control, thereby effectively guaranteeing the stroke accuracy and action reliability of the posture conversion process of the arc-shaped abutment plate 2, and avoiding the situations of overtravel or insufficient position; the arc-shaped abutment plate 2 is arranged at a right-central position of the reinforcement cage 1, and the spatial positioning ensures that the arc-shaped abutment plate 2 is at a right offset position of the overall center of gravity of the reinforcement cage 1 in the reinforcement cage 1 hoisting posture adjustment stage, and the setting can provide stable support reaction force for the upward overturning and clockwise rotation movement of the left end of the reinforcement cage 1 through the structural abutment, thereby guaranteeing the mechanical balance in the posture conversion process.

[0042] In the present application, the side wall of the reinforcement cage 1 is always in abutment limiting with the arc-shaped abutment plate 2 when the reinforcement cage 1 is lifted. This arc-shaped constraint structure relies on the continuous radial force to limit the circumferential movement of the reinforcement cage 1, completely solves the relative angular displacement problem existing in the traditional double-lifting-point hoisting, makes the reinforcement cage 1 maintain structural integrity and stable movement in the whole process of the posture conversion completed by the main hook and the auxiliary hook, and fundamentally eliminates the accidental twisting caused by the circumferential rotation of the lifting point, thereby greatly enhancing the hoisting stability and construction safety in the posture conversion stage.

[0043] The arc-shaped abutment plate 2 adopts a semi-arc design matched with the shape of the reinforcement cage 1, the arc curvature thereof is matched with the outer wall contour of the reinforcement cage 1, can form a conformal abutment in the whole process of the reinforcement cage 1 hoisting posture conversion, and transmits the limiting force through surface contact, thereby effectively restricting the circumferential rotation of the reinforcement cage 1. Compared with the straight plate structure, the semi-arc arc-shaped abutment plate 2 can more closely match the side wall of the reinforcement cage 1 of different diameters, can adapt to the differences in the shape and size of the reinforcement cage 1 of different specifications, and meet the hoisting posture conversion requirements. This not only breaks through the adaptation limitation of the diameter of the reinforcement cage 1, but also guarantees the limiting stability by virtue of the conformal characteristics of the arc-shaped abutment plate 2, and realizes the organic combination of functionality and universality.

[0044] The application comprises a driving system composed of a cylinder 10, a rack 12, an incomplete gear 13 and the like, when the output end of the cylinder 10 completes a stroke driving, the arc-shaped abutting plate 2 can be actively adjusted from a horizontal state to a vertical state. This setting makes the arc-shaped abutting plate 2 have independent posture driving capability, and always maintains a stable abutting and supporting posture during the state conversion of the reinforcement cage 1. Compared with the mode of relying on the change of the hoisting posture of the reinforcement cage 1 to drive the arc-shaped abutting plate 2 to passively rotate to maintain abutting, the self-driven mechanism can actively adapt to the posture change of the reinforcement cage 1, greatly improves the continuous supporting reliability of the arc-shaped abutting plate 2 to the reinforcement cage 1, provides more stable constraint support for the whole hoisting posture adjustment process of the reinforcement cage 1, and effectively avoids the risk of supporting lag or disengagement that may occur in the passive following mode.

[0045] Referring mainly to Figure 5 As shown in the figure, the supporting assembly comprises a vertical arm 3, a rotating seat 5, a first connecting block 6, a first supporting arm 7, a second supporting arm 8 and a first guide seat 9. The vertical arm 3 is arranged in the vertical direction and is arranged in an L shape. The rotating shaft 4 is rotatably connected to the bottom end of the vertical arm 3 through a bearing. Under the action of external force, the rotating shaft 4 can rotate relative to the reinforcement cage 1. The rotating seat 5 is fixedly installed on the rotating shaft 4. The first connecting block 6 is fixedly installed at the bottom end of the rotating seat 5 and is fixedly connected to the middle part of the upper surface of the arc-shaped abutting plate 2. One end of the first supporting arm 7 is fixedly connected with the vertical arm 3, and the cylinder 10 is installed on the first supporting arm 7. One end of the second supporting arm 8 is fixedly connected with the vertical arm 3. The first guide seat 9 is arranged in the vertical direction. The other end of the first supporting arm 7 and the other end of the second supporting arm 8 are both fixedly connected with the first guide seat 9, and the rack 12 is slidably embedded in the inner cavity of the first guide seat 9 in the vertical direction.

[0046] The cylinder 10 is started to drive the driving block 11 and the rack 12 to vertically move upward, which promotes the incomplete gear 13 connected with the rack 12 to rotate clockwise by 90 degrees, thereby driving the rotating shaft 4, the rotating seat 5, the first connecting block 6 and the arc-shaped abutting plate 2 to synchronously rotate clockwise relative to the vertical arm 3 with the rotating shaft 4 as the axis. This design ensures that the arc-shaped abutting plate 2 always abuts and supports the side wall of the reinforcement cage 1 when the reinforcement cage 1 rotates clockwise, which can better guarantee the stability of the reinforcement cage 1 during hoisting compared with the traditional mode.

[0047] The connection between the existing main hook of the crane and the left lifting point of the reinforcement cage is a fixed structure, which cannot be adjusted once the connection position is determined, and the lifting point can only be hooked at the cross node of the reinforcement cage. Since the cross node is not necessarily the optimal lifting point of the reinforcement cage, the adjustment flexibility of the position of the lifting point is limited, and the position of the lifting point relative to the reinforcement cage directly affects the hoisting stability. In view of this problem, mainly referring to Figure 6As shown, the symmetrical adjusting system comprises: an arc-shaped positioning plate 14, an arc-shaped groove 15, an arc-shaped guide frame 16, a hoisting assembly, a driving rod 19 and a lifting frame 22, the arc-shaped positioning plate 14 is arranged in an arc shape and is connected with the reinforcement cage 1 through an assembling assembly, and the arc-shaped positioning plate 14 is arranged in a half-arc shape; the arc-shaped groove 15 is provided on the arc-shaped positioning plate 14 in a penetrating manner, and the arc-shaped groove 15 is arranged in an arc shape; after the arc-shaped groove 15 is provided on the arc-shaped positioning plate 14, the arc-shaped guide frame 16 is formed on the outer wall edge of the arc-shaped positioning plate 14; the hoisting assembly is provided in two groups, and the two groups of hoisting assemblies are symmetrically and slidingly arranged on the arc-shaped guide frame 16; one end of the driving rod 19 is connected with the hoisting assembly; specifically, each hoisting assembly comprises: a sliding block 17 and a lifting hook 18, the sliding block 17 is slidingly sleeved on the arc-shaped guide frame 16, and one end of the driving rod 19 is fixedly connected with the side wall of the sliding block 17; the lifting hook 18 is fixedly installed on the sliding block 17; the lifting frame 22 is provided with a through cavity from front to back, and the other end of the driving rod 19 is slidingly embedded in the inner cavity of the lifting frame 22, and the lifting frame 22 moves in the vertical direction.

[0048] The present application sets two groups of relative adjustable lifting point mechanisms at the connecting position corresponding to the main hook on the left side of the reinforcement cage. This design breaks the limitation that the lifting point can only be limited to the cross node of the reinforcement cage, and can flexibly select and lock the most suitable lifting point according to the structural characteristics and actual lifting conditions of the reinforcement cage, greatly improving the adjustability of the lifting point position, and further ensuring the stable state of the reinforcement cage during the whole lifting process.

[0049] In the present application, the two groups of lifting hooks 18 can be symmetrically displaced relative to the reinforcement cage. The synchronous adjusting mechanism provided thereby can keep them symmetrically distributed after flexible movement, which provides a guarantee for uniform force bearing and structural stability of the two lifting points during subsequent lifting. In addition, the two groups of lifting hooks 18 can be angularly adjusted in the circumferential direction relative to the arc-shaped guide frame 16, and can be locked at any position on the circumference of the arc-shaped guide frame 16 after adjustment. The combination of symmetrical adjustment constraint and circumferential free positioning ensures the symmetry of the relative positions of the two groups of lifting hooks 18 and the stability of the adjusted positions, and also provides sufficient freedom for the position adjustment of the two groups of lifting hooks 18, so that the optimal lifting point of the reinforcement cage can be accurately matched, and the flexibility and adaptability of the lifting point selection are greatly enhanced.

[0050] REFERENCE Figure 6As shown, the symmetrical adjustment system further comprises a mounting frame 20, a second guide seat 21, a lifting block 23 and a lead screw 24, the mounting frame 20 is fixedly installed on the front side wall of the arc-shaped positioning plate 14, and the arc-shaped positioning plate 14 is arranged in a U shape; the second guide seat 21 is provided with two, and the two second guide seats 21 are vertically arranged on the mounting frame 20 in left-right symmetry, and the two ends of the lifting frame 22 are respectively slidably embedded in the inner cavities of the second guide seats 21; the lifting block 23 is fixedly installed on the front side wall of the lifting frame 22; the lead screw 24 is rotatably connected to the middle part of the mounting frame 20 in the vertical direction through a bearing, and the lifting block 23 is threadedly sleeved on the lead screw 24; the lead screw 24 is a lead screw that can realize self-locking in the existing market, which can realize self-locking when it stops rotating and will not be affected by external force to rotate, which can meet the above use requirements, and the general type of the existing technology is adopted, and the type of the above-mentioned components is not limited and is not described in detail.

[0051] In the present application, the rotary motion of the lead screw 24 drives the lifting frame 22 to vertically displace, and in combination with the arc-shaped limiting structure of the arc-shaped groove 15 and the arc-shaped guide frame 16, a synchronous symmetrical adjustment mechanism of the two groups of lifting hooks 18 is formed. The two groups of lifting hooks 18 share the same driving source to adjust the relative position, and the position accuracy and symmetry after adjustment are guaranteed by the rigid synchronous characteristics of mechanical transmission, which can avoid position deviation compared with independent adjustment, and improve the consistency and certainty of the relative position of the two, thereby providing reliable protection for subsequent hoisting force balance.

[0052] As shown in Figure 6 , Figure 8 and Figure 9 , the assembly component comprises a second connecting block 30, a vertical slot 31, a through hole 32, a U-shaped positioning rod 33 and a positioning nut 34, the second connecting block 30 is provided with two, and the two second connecting blocks 30 are installed in the inner wall of the arc-shaped positioning plate 14 in front and back symmetry, and the two second connecting blocks 30 form a positioning space at the bottom end of the inner wall of the arc-shaped positioning plate 14; the vertical slot 31 is vertically formed in the second connecting block 30; the through hole 32 is formed through the second connecting block 30, and each second connecting block 30 is provided with two groups of through holes 32; the U-shaped positioning rod 33 is inserted into the inner cavity of the through hole 32 from front to back, and the rear end of the U-shaped positioning rod 33 is provided with external threads, and the U-shaped positioning rod 33 is arranged in a U shape; the positioning nut 34 is provided with two, and the two positioning nuts 34 are threadedly sleeved on the two ends of the rear side of the U-shaped positioning rod 33.

[0053] When the arc-shaped positioning plate 14 is connected and assembled with the steel reinforcement cage 1, the two second connecting blocks 30 installed at the middle of the bottom end of the arc-shaped positioning plate 14 are respectively arranged on the front and back sides of the circumferential ring body of the steel reinforcement cage 1, that is, the two second connecting blocks 30 form the front and back direction limiting on the front and back sides of the ring body of the steel reinforcement cage 1, and the second connecting block 30 and the arc-shaped positioning plate 14 in this state cannot be displaced in the front and back direction relative to the steel reinforcement cage 1; the vertical slot 31 on the second connecting block 30 is aligned with the steel bars in the front and back direction of the steel reinforcement cage 1 and is sleeved from top to bottom, and then the U-shaped positioning rod 33 is penetrated through the two through holes 32 from front to back, so that the U-shaped positioning rod 33 forms the front and back direction limiting at the outer walls of the two second connecting blocks 30, and the positioning nut 34 is screwed and positioned on the rear side wall of the rear second connecting block 30, and the arc-shaped positioning plate 14 is circumferentially limited by being arc-shapedly matched with the upper surface of the steel reinforcement cage 1, so that the arc-shaped positioning plate 14 is comprehensively positioned in the front and back direction, the left and right direction and the circumferential direction on the steel reinforcement cage 1, that is, the stable assembly connection of the arc-shaped positioning plate 14 and the steel reinforcement cage 1 is realized.

[0054] In the present application, the connection of the arc-shaped positioning plate 14 and the steel reinforcement cage 1 adopts an integrated positioning assembly composed of the second connecting block 30, the vertical slot 31, the U-shaped positioning rod 33 and the positioning nut 34, which has multi-dimensional locking functions: first, the front and back displacement of the arc-shaped positioning plate 14 on the steel reinforcement cage 1 is limited by the mechanical structure; second, the rotation freedom of the arc-shaped positioning plate 14 around the axis of the steel reinforcement cage 1 is restricted by the circumferential limiting structure. The design integrates the axial and circumferential locking functions in the same set of positioning assembly, without the need for additional setting of multiple independent locking mechanisms, which not only simplifies the assembly process of the arc-shaped positioning plate 14 and the steel reinforcement cage 1, but also enhances the overall stability and reliability of the connection structure through multi-dimensional collaborative constraint.

[0055] Mainly referring to Figure 6 and Figure 7 As shown in the figure, the locking assembly is arranged at the screw rod 24, and the locking assembly comprises an extension table 25, a positioning rod 26, a spring 27, a fixed disc 28 and a positioning groove 29. The extension table 25 is fixedly installed on the screw rod 24. The positioning rod 26 is vertically slidably penetrated through the extension table 25. The spring 27 is sleeved on the positioning rod 26, and the two ends of the spring 27 are respectively connected with the positioning rod 26 and the extension table 25. The fixed disc 28 is fixedly installed on the mounting frame 20, and the center of the fixed disc 28 is coincided with the center of the screw rod 24. The positioning groove 29 is provided with a plurality of positioning grooves 29, and the plurality of positioning grooves 29 are equidistantly and circumferentially arranged on the upper surface of the fixed disc 28. The bottom end of the positioning rod 26 is embedded in the inner cavity of one of the positioning grooves 29.

[0056] The present application is equipped with a rotation locking mechanism for the lead screw 24: the lead screw 24 is mechanically locked and positioned after rotation adjustment by means of the cooperation of the positioning rod 26 and the positioning groove 29, and the self-locking function of the lead screw 24 itself forms a double fixing structure. This design can ensure that the lead screw 24 remains stable after completing the rotation adjustment, and then makes the lifting hook 18 at the adjusted position realize rigid positioning, effectively prevents the lifting hook 18 from being displaced due to external interference during lifting, and provides reliable protection for the position stability of the lifting hook 18 during the whole lifting process.

[0057] Referring mainly to Figures 1 to 4 As shown, the crane device comprises a first hoisting rope 35, a second hoisting rope 36, a crane arm 37, a main hook 38, a first auxiliary hook 39 and a second auxiliary hook 40, the first hoisting rope 35 is connected with the two lifting hooks 18; the second hoisting rope 36 is connected with the top end of the vertical arm 3; the main hook 38, the first auxiliary hook 39 and the second auxiliary hook 40 are respectively arranged at the crane arm 37, the main hook 38 is connected with the first hoisting rope 35, the first auxiliary hook 39 is connected with the second hoisting rope 36, and the second auxiliary hook 40 is connected with the right part of the middle of the reinforcement cage 1.

[0058] The vertical arm 3 in the present embodiment is connected with the second hoisting rope 36, and in the lifting operation, the connection structure of the second hoisting rope 36 of the crane in the prior art and the vertical arm 3 can ensure that the vertical arm 3 always remains perpendicular to the ground during the lifting process, and the core principle is based on the static suspension characteristics in the gravitational field: when the second hoisting rope 36 connects the lifting arm vertical arm 3 and the reinforcement cage-equipment whole, the system will spontaneously tend to the stable state with the lowest gravitational potential under the action of its own weight. At this time, the tension direction of the second hoisting rope 36 and the gravity direction form a dynamic balance, and through the self-adaptive adjustment of rigid constraint or flexible sling, the axis of the vertical arm 3 always remains consistent with the direction of gravity, that is, the plumb direction; this balance mechanism is derived from the one-way nature of gravity, and cooperates with the constraint of the hoisting rope: if the vertical arm 3 is inclined, the center of gravity will deviate from the plumb projection line of the lifting point, resulting in a horizontal component force of the hoisting rope tension, which will drive the vertical arm 3 to rotate around the lifting point until the center of gravity falls on the plumb line, so that the axis of the vertical arm 3 is perpendicular to the ground. This process does not require additional driving, but only the internal force adjustment caused by the weight of the system can realize the vertical posture self-correction of the vertical arm 3, thereby avoiding the inclination of the vertical arm 3 relative to the ground during lifting, and ensuring the lifting stability. The cooperation of the second hoisting rope 36, the crane arm 37, the first auxiliary hook 39, the second auxiliary hook 40 and other components can automatically realize that the vertical arm 3 always remains in the vertical direction, which is a common technical means in the prior art, and meets the above use requirements, and this place will not be described and limited.

[0059] The first lifting rope 35, the second lifting rope 36, the crane arm 37, the main hook 38, the first auxiliary hook 39 and the second auxiliary hook 40 are all general devices on the market, and the above-mentioned devices can realize the lifting state conversion of the reinforcement cage 1 from the horizontal to the vertical direction, and can meet the above-mentioned use requirements, and the general type of the prior art is adopted, and the lifting sequence and the lifting position are all the prior art, and the type of the above-mentioned components is not limited and is not described in detail.

[0060] The working principle of the prefabricated pier column reinforcement cage lifting device is as follows:

[0061] Before lifting, the distance between the two groups of hooks 18 is adjusted in advance to be located at the optimal lifting position: the positioning rod 26 is lifted upward out of the inner cavity of the corresponding positioning groove 29 at this time, that is, the lead screw 24 is no longer limited by the positioning rod 26 at the positioning groove 29; by driving the lead screw 24 to rotate, the lifting block 23 is displaced in the vertical direction along the lead screw 24, so that the lifting frame 22 is synchronously lifted and displaced along the inner cavities of the two second guide seats 21; in the lifting and displacement process of the lifting frame 22, the two groups of driving rods 19, the sliding blocks 17 and the hooks 18 are synchronously displaced along the arc-shaped guide frame 16 in a symmetrical manner, thereby freely adjusting the lifting positions of the two hooks 18 relative to the reinforcement cage 1 in a symmetrical manner. The adjusted lead screw 24 has self-locking property and will not rotate circumferentially; after adjustment, the driving of the positioning rod 26 is removed, and the elastic force of the spring 27 promotes the positioning rod 26 to reinsert into the inner cavity of the corresponding positioning groove 29 after rotation, thereby further limiting the circumferential rotation of the adjusted lead screw 24, that is, further ensuring that the two groups of hooks 18 after adjustment remain stable and positioned;

[0062] Before lifting, the reinforcement cage 1 is horizontally placed opposite, and the first lifting rope 35 and the second auxiliary hook 40 are used to lift the reinforcement cage 1 from the ground to a suitable distance, reserving enough space for subsequent vertical adjustment of the reinforcement cage 1 relative to the ground; the arc-shaped abutment plate 2 is placed against the upper surface of the reinforcement cage 1 in a direction slightly to the right, ensuring that the reinforcement cage 1 is always limited by the arc-shaped inner wall of the arc-shaped abutment plate 2 during subsequent clockwise rotation of the reinforcement cage 1; when the first lifting rope 35 lifts the left point of the reinforcement cage 1, the opened cylinder 10 is used to promote the vertical upward movement of the driving block 11 and the rack 12, and then the incomplete gear 13 meshing connected on the rack 12 is rotated clockwise by 90 degrees, the rotation of the incomplete gear 13 drives the rotation shaft 4, the rotation seat 5, the first connecting block 6 and the arc-shaped abutment plate 2 to rotate clockwise relative to the vertical arm 3 with the rotation shaft 4 as the axis, thereby meeting the clockwise rotation of the arc-shaped abutment plate 2 following the reinforcement cage 1, and always abutting and supporting the side wall of the reinforcement cage 1, which can better ensure the stability of the reinforcement cage 1 during lifting than the traditional way;

[0063] This invention utilizes an arc-shaped contact plate 2 to continuously limit the radial movement of the reinforcing cage 1, eliminating the circumferential relative rotation of traditional dual-lifting points and improving the stability of posture transitions and construction safety. The semi-arc structure of the arc-shaped contact plate 2, through surface contact with reinforcing cages 1 of different diameters, balances limiting stability with sizing compatibility. The autonomous drive system of the arc-shaped contact plate 2 actively adapts to the posture changes of the reinforcing cage 1, avoiding the risk of passive support lag or detachment. A dual-stroke control mechanism ensures the accuracy and reliability of the arc-shaped contact plate 2's posture transitions. Two adjustable sets of lifting points overcome the limitations at the cross intersection. The invention improves the stability and adjustability of the lifting points; the symmetrical adjustment and circumferential positioning of the two sets of hooks 18 ensure symmetrical and stable force distribution, adapting to the optimal lifting point requirements; the synchronous adjustment mechanism driven by the same power source avoids positional deviation and ensures balanced force distribution during lifting; the double locking mechanism of the lead screw 24 ensures the stability of the hook 18 position and prevents external force deviation; the integrated positioning component realizes multi-dimensional locking between the arc-shaped positioning plate 14 and the rebar cage 1, simplifying assembly and improving connection stability. In summary, the invention comprehensively improves the stability, safety, adaptability, and ease of operation of rebar cage lifting.

[0064] Example 2

[0065] Main references Figure 10 and Figure 11 As shown, the difference between this embodiment and Embodiment 1 is that the vertical arm 3 is directly and fixedly connected to the crane arm 37. In this state, since the vertical arm 3 is a rigid structure, the direct rigid connection with the crane arm 37 ensures that the vertical arm 3 maintains a perpendicular posture to the ground throughout the entire hoisting process. Simultaneously, to adapt to the initial installation conditions of the vertical arm 3 on the crane arm 37, the vertical arm 3 can be configured as a multi-section telescopic rod structure with adjustable length. This telescopic feature not only maintains the verticality of the vertical arm 3 but also compensates for installation errors by adjusting its length, ensuring the feasibility of the connection with the crane arm 37 and thus guaranteeing the overall structural stability of the connection.

[0066] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0067] The terms "first", "second", and the like in the description and in the claims of the embodiments of the present disclosure and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0068] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0069] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixed connection, detachable connection, or integral structure; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meanings of the above-mentioned terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0070] Unless otherwise specified, the term "a plurality of" means two or more.

[0071] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B means: A or B.

[0072] The term "and / or" describes the association between objects, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, the three relationships.

[0073] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A precast pier reinforcement cage hoisting device for hoisting a reinforcement cage (1) from a horizontal state to a vertical state, characterized in that: The utility model relates to a kind of precast pier column reinforcement cage hoisting device, including: Arc abutment plate (2), the arc abutment plate (2) is arc, and the arc abutment plate (2) is placed on the upper surface of the reinforcement cage (1), the arc length of the arc abutment plate (2) section is one fourth to one half of the circumference of the reinforcement cage (1); Support assembly, the support assembly provides support on the arc abutment plate (2); Pivot (4), the pivot (4) is rotationally arranged at the support assembly along the front-back direction; Air cylinder (10), the air cylinder (10) is arranged along the vertical direction; Driving block (11), the driving block (11) is fixedly installed at the bottom end of the air cylinder (10); Rack (12), the rack (12) is fixedly installed on the left side wall of the driving block (11); Incomplete gear (13), the incomplete gear (13) is fixedly installed at the front end of the pivot (4), the incomplete gear (13) is engaged with the rack (12), and the number of teeth on the incomplete gear (13) is one fourth of its own circumferential length; The support assembly includes: Vertical arm (3), the vertical arm (3) is arranged along the vertical direction, and the vertical arm (3) is arranged as L-shaped, and the pivot (4) is rotationally connected to the bottom end of the vertical arm (3); Rotary seat (5), the rotary seat (5) is fixedly installed on the pivot (4); First connecting block (6), the first connecting block (6) is fixedly installed at the bottom end of the rotary seat (5), and the first connecting block (6) is fixedly connected with the upper surface of the arc abutment plate (2) middle part; First support arm (7), one end of the first support arm (7) is fixedly connected with the vertical arm (3), and the air cylinder (10) is installed on the first support arm (7); Second support arm (8), one end of the second support arm (8) is fixedly connected with the vertical arm (3); First guide seat (9), the first guide seat (9) is arranged along the vertical direction, the other end of the first support arm (7) and the other end of the second support arm (8) are fixedly connected with the first guide seat (9), and the rack (12) is slidably embedded in the inner cavity of the first guide seat (9) along the vertical direction.

2. The precast pier column reinforcement cage hoisting device according to claim 1, wherein: The arc abutment plate (2) is arranged at the center right position of the reinforcement cage (1).

3. The precast pier column reinforcement cage hoisting device according to claim 1, further comprising a symmetric adjustment system, the symmetric adjustment system comprising: Arc positioning plate (14), the arc positioning plate (14) is arranged as arc, is connected with the reinforcement cage (1) through assembly component, and the arc positioning plate (14) is arranged as half arc shape; Arc slot (15), the arc slot (15) is arranged on the arc positioning plate (14) in a penetrating manner, and the arc slot (15) is arranged as arc; Arc guide frame (16), after the arc slot (15) is arranged on the arc positioning plate (14), the arc guide frame (16) is formed on the outer side wall edge of the arc positioning plate (14). ​ The lifting assembly is provided with two groups, and the two groups of lifting assemblies are symmetrically and slidably arranged on the arc-shaped guide frame (16); A driving rod (19) is connected to one end of the lifting assembly; A lifting frame (22) is provided with a through cavity from front to back, and the other end of the driving rod (19) is slidably embedded in the inner cavity of the lifting frame (22), and the lifting frame (22) is vertically displaced.

4. The precast pier column reinforcement cage lifting device according to claim 3, characterized in that: The symmetrical adjusting system further comprises: A mounting bracket (20) is fixedly installed on the front side wall of the arc-shaped positioning plate (14), and the arc-shaped positioning plate (14) is arranged in a U shape; Two second guide seats (21) are provided, and the two second guide seats (21) are vertically arranged on the mounting bracket (20) respectively left and right, and the two ends of the lifting frame (22) are slidably embedded in the inner cavities of the second guide seats (21); A lifting block (23) is fixedly installed on the front side wall of the lifting frame (22); A lead screw (24) is rotatably connected to the middle part of the mounting bracket (20) in the vertical direction, and the lifting block (23) is threadedly sleeved on the lead screw (24).

5. The precast pier column reinforcement cage lifting device according to claim 3, characterized in that: Each group of lifting assemblies comprises: A sliding block (17) is slidably sleeved on the arc-shaped guide frame (16), and one end of the driving rod (19) is fixedly connected with the side wall of the sliding block (17); A lifting hook (18) is fixedly installed on the sliding block (17).

6. The precast pier column reinforcement cage lifting device according to claim 3, characterized in that: The assembly component comprises: Two second connecting blocks (30) are provided, and the two second connecting blocks (30) are symmetrically installed on the inner wall of the arc-shaped positioning plate (14) respectively front and back, and the two second connecting blocks (30) form a positioning space at the bottom end of the inner wall of the arc-shaped positioning plate (14); Vertical grooves (31) are respectively formed in the second connecting blocks (30) in the vertical direction; Through holes (32) are respectively formed through the second connecting blocks (30), and each second connecting block (30) is provided with two groups of through holes (32); A U-shaped positioning rod (33) is inserted into the inner cavity of the through hole (32) from front to back, and the rear end of the U-shaped positioning rod (33) is provided with external threads, and the U-shaped positioning rod (33) is arranged in a U shape; Two positioning nuts (34) are provided, and the two positioning nuts (34) are respectively threadedly sleeved on the two ends of the rear side of the U-shaped positioning rod (33).

7. The precast pier column reinforcement cage lifting device according to claim 4, characterized in that: The screw rod (24) is provided with a locking assembly, the locking assembly comprises: An extension table (25) is fixedly installed on the screw rod (24); A positioning rod (26) slides through the extension table (25) in the vertical direction; A spring (27) is sleeved on the positioning rod (26), and both ends of the spring (27) are connected with the positioning rod (26) and the extension table (25) respectively; A fixed disc (28) is fixedly installed on the mounting frame (20), and the center of the fixed disc (28) coincides with the center of the screw rod (24); A plurality of positioning grooves (29) are arranged on the upper surface of the fixed disc (28) and are equidistantly spaced in the circumferential direction, and the bottom end of the positioning rod (26) is embedded in the inner cavity of one of the positioning grooves (29).

8. The precast pier column reinforcement cage hoisting device according to claim 5, characterized in that: It further comprises a crane device, the crane device comprises: A first lifting rope (35) connected with the two hooks (18); A second lifting rope (36) connected with the top end of the vertical arm (3); A crane arm (37) is provided with a main hook (38), a first auxiliary hook (39) and a second auxiliary hook (40) respectively, the main hook (38) is connected with the first lifting rope (35), the first auxiliary hook (39) is connected with the second lifting rope (36), and the second auxiliary hook (40) is connected with the right part of the middle of the reinforcement cage (1).

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