Efficient lifting device capable of adapting to mounting angle of concrete armor block

Abstract

An efficient lifting device capable of adapting to the mounting angle of a concrete armor block. The efficient lifting device comprises an automatic unhooking system (2) and a position adjustment system (3) which are arranged on a spreader system (1), wherein the spreader system comprises two main lifting beams (101) which are arranged in parallel, lifting arms (102) being hinged to the outer sides of the main lifting beams, the two opposite lifting arms being connected by means of the automatic unhooking system, and the lifting arms being configured to hold a prefabricated concrete block (4); the automatic unhooking system comprises a fixing frame (204), connecting rods (201) being symmetrically and telescopically provided on two sides of the fixing frame, and the connecting rods being hinged to the lifting arms; and the position adjustment system comprises a second jack (304) which is connected to a lock plate (301) by means of a sliding block (302). The efficient lifting device further comprises a fixing unit (9) detachably arranged on a lifting hook (10), wherein the fixing unit comprises a fixed pulley (901), two fixing cables (7) being wound around the fixed pulley, and both ends of each fixing cable being fixedly arranged on the main lifting beams. The lifting device can greatly improve the safety and efficiency of the lifting of a prefabricated concrete block, and can make an adjustment according to the angle of inclination of a slope, and has high adaptability.

Description

Efficient lifting device that can adapt to the installation angle of concrete facing blocks Technical Field

[0001] The invention relates to the technical field of slope protection construction, in particular to a high-efficiency hoisting device which can adapt to the installation angle of a concrete face protection block. Background Art

[0002] In hydraulic engineering projects such as riverbank and coastal protection, a considerable number of precast concrete blocks need to be installed on the slope to reduce the impact of waves on the slope, avoid soil loss on the slope, and ensure the stability of the slope structure. At present, the hoisting of precast concrete blocks for slope protection is mostly done by directly binding them with ropes and then hoisting them to the designed position. The shackles are manually operated. Due to the heavy weight and large size of the precast concrete blocks, the large number of precast concrete blocks to be installed, and the underwater working environment, the construction intensity is high and the work efficiency is low. The direct problem brought by manual operation is low precision, there is no good support for underwater operations, and the overall operational safety risk is relatively high. In addition, different construction projects have different design angles for slope protection, and the commonly used hoisting equipment cannot be well adjusted according to the angle of the slope to ensure the quality of construction.

[0003] Chinese patent document CN 216836776 U describes a claw hook device for lifting prefabricated slope protection blocks, but the device can only handle triangular prefabricated concrete blocks, is limited in use, and cannot adapt to the angle of the installation slope; Chinese patent CN 213625479 U describes an ecological slope protection prefabricated block and its lifting device, which also cannot be lifted as a whole and cannot be adjusted according to the angle of the installation slope. There are defects in use and need to be improved. Summary of the Invention

[0004] The present invention provides an efficient lifting device that can adapt to the installation angle of concrete face blocks, solving the problems of low precision and poor efficiency in installing precast concrete blocks on slope protection, inability to adjust the lifting angle according to the installation slope, and requiring multiple adjustments to achieve positioning.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is: an efficient lifting device that can adapt to the installation angle of concrete facing blocks, including an automatic unhooking system and a positioning system arranged on a lifting device system, the lifting device system including two main hangers arranged in parallel, the outer sides of the main hangers are hingedly provided with a lifting arm, the two opposite lifting arms are connected by an automatic unhooking system, the lifting arms are used to clamp the precast concrete blocks, the automatic unhooking system includes a fixed frame, the two sides of the fixed frame are symmetrically telescopically provided with connecting rods, the connecting rods and the lifting arms are hinged, the positioning system includes a second jack fixed to the main hanger, the second jack is slidably connected to the locking plate via a sliding block, and the locking plate is fixed to the main hanger;

[0006] It also includes a detachable fixing unit arranged on the hook, the fixing unit includes a fixed pulley, two fixing cables are wound around the fixed pulley in parallel, and the two ends of the fixing cables are respectively fixed on both sides of the main hanger.

[0007] In the preferred solution, a connecting plate is provided on the upper part of the sliding block, a side lifting ear is fixed on the connecting plate, the lifting arm and the side lifting ear are hinged, a first ranging module is also provided on the lower side of the lifting arm, a plurality of balls are evenly arranged in the lock plate, a second push rod is provided on one side of the second jack, the second push rod and the connecting plate are hinged, and a second ranging module is also provided on the second jack.

[0008] In a preferred solution, the two main hangers are connected via a plurality of auxiliary hangers, and upper hanging ears are symmetrically provided on both sides of the main hanger, and the ends of the fixed cables are fixed on the upper hanging ears.

[0009] In a preferred solution, a base is provided parallel to the auxiliary hanger near the upper hanging ear, the base is connected to the fixing unit through a length adjustment unit, and both sides of the length adjustment unit are hinged to the base and the fixing unit respectively.

[0010] In the preferred solution, a support plate is provided in the middle of the fixed frame, and a first jack is supported on the support plate. A first push rod is provided on both sides of the first jack. A sleeve is hinged on the first push rod, and the sleeve and the connecting rod are threadedly connected. A signal receiving and sending module is provided on the support plate, and a plug plate is provided on one side of the connecting rod. The boom is hinged to the plug plate through the first pin shaft.

[0011] In a preferred solution, the boom includes a contact portion and a bearing portion, the bearing portion and the connecting rod are hinged, a threaded hole is provided on the lower side of the bearing portion, a screw is fixed on the contact portion, and the screw and the threaded hole are threadedly connected.

[0012] In the preferred solution, an extension plate and a limit plate are provided on the outside of the boom, the extension plate and the boom are fixedly connected, a contact support plate is supported on the limit plate, the contact support plate is hinged to the boom through a third pin shaft, the contact support plate and the extension plate are connected by a spring, a pull rope is detachably provided on the contact support plate, a third ranging module is also provided on the outside of the boom, the third ranging module is located on the lower side of the contact support plate, a first inclined surface and a second inclined surface are provided on the outside of the precast concrete block, a contact surface is provided at the end of the contact support plate, and the slopes of the contact surface, the first inclined surface and the second inclined surface are equal.

[0013] In the preferred solution, an adapter seat is provided on the fixing unit, and the fixed pulley is rotatably set on the adapter seat through a second pin shaft. Two side plates are provided in parallel on the upper part of the adapter seat, and the side plates are connected to two C-shaped plates by a first screw. The two C-shaped plates are arranged opposite to each other to form a clamping space. The size of the clamping space matches the shape of the hook. Two limit grooves are provided in parallel on the fixed pulley, and the fixed cable is wound in the limit grooves. The length adjustment unit is hinged to the outside of the adapter seat.

[0014] In a preferred embodiment, a first boss and a second boss are provided in parallel on the outer side of the adapter, and the length adjustment unit includes two first telescopic rods and a second telescopic rod arranged diagonally, and the first telescopic rod and the second telescopic rod on the same side are arranged alternately, and the first telescopic rod is hinged to the second boss by a first screw, and the second telescopic rod is hinged to the first boss by a first screw.

[0015] In the preferred solution, a mounting hole is provided on the auxiliary hanger, the alignment plate is connected to the auxiliary hanger by a second screw, the alignment plate is passed through the mounting hole, the precast concrete block includes four evenly arranged notches, the boom is clamped in the notches, and the precast concrete block is placed on the side of the base bank close to the water.

[0016] The beneficial effects of the present invention are as follows: by arranging an automatic unhooking system on the main hanger, the opening and closing of the boom can be better controlled, so that the precast concrete block can be quickly hoisted from the notch, and then moved to the designed position to complete the landing. The positioning system can adjust the position according to different precast concrete blocks to ensure the stability of the clamping, and at the same time it can also change the overall center of gravity, thereby tilting the sling system and the precast concrete block as a whole. The fixed cable uses the fixed pulley to realize the change of the hoisting point. Finally, the first telescopic rod and the second telescopic rod cooperate with each other to ensure the stability of the tilt angle. The fixed unit is quickly installed on the hook as a transfer point at the beginning to limit the position. The overall operation is convenient and the use effect is good. The number of precast concrete blocks hoisted at one time is large, the stability is strong, the versatility is good, and it has good economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] FIG1 is a schematic cross-sectional view of a hoisting prefabricated block according to the present invention in state 1;

[0019] FIG2 is a schematic cross-sectional view of a hoisting prefabricated block according to the present invention in state 2;

[0020] FIG3 is a schematic cross-sectional view of a hoisting prefabricated block in state three of the present invention;

[0021] FIG4 is a schematic front view of the main hanger of the present invention;

[0022] FIG5 is a schematic top view of the main hanger of the present invention;

[0023] FIG6 is a schematic structural diagram of the spreader system of the present invention in state 1;

[0024] FIG7 is a schematic structural diagram of the spreader system of the present invention in state 2;

[0025] FIG8 is a schematic top view of the automatic unhooking system of the present invention;

[0026] 9 is a schematic front view of the automatic unhooking system of the present invention;

[0027] FIG10 is a schematic front view of the positioning system of the present invention;

[0028] FIG11 is a schematic right view of the positioning system of the present invention;

[0029] FIG12 is a schematic top view of the positioning system of the present invention;

[0030] FIG13 is an enlarged schematic diagram of point A in FIG10;

[0031] FIG14 is a schematic diagram of the structure of a precast concrete block according to the present invention;

[0032] FIG15 is a schematic diagram of the present invention as a whole in state 1;

[0033] FIG16 is a schematic diagram of the present invention as a whole in state 2;

[0034] 17 is a schematic diagram of the slope protection after the present invention is completed hoisting;

[0035] FIG18 is a schematic diagram of the present invention as a whole in state three;

[0036] FIG19 is a schematic top view of FIG18;

[0037] FIG20 is a schematic front view of FIG18;

[0038] FIG21 is a left side schematic view of FIG18;

[0039] FIG22 is a schematic diagram of the exploded structure of FIG18;

[0040] FIG23 is a schematic diagram of the exploded structure of the fixing unit of FIG18;

[0041] FIG24 is a schematic diagram of the main hanger structure of FIG18 installed with the alignment plate structure;

[0042] FIG25 is a schematic diagram of the explosion structure of FIG24.

[0043] In the figure: sling system 1; main hanger 101; boom 102; upper lifting eye 103; side lifting eye 104; auxiliary hanger 105; first pin 106; first distance measuring module 107; third distance measuring module 108; contact portion 109; bearing portion 110; screw 111; threaded hole 112; extension plate 113; contact support plate 114; spring 115; pull rope 116; base 117; contact surface 118; mounting hole 119; second screw 120; third pin 121; limit plate 122; automatic unhooking system 2; connecting rod 201; signal receiving and transmitting module 202; first jack 203; fixing frame 204; plug plate 205; first push rod 206; sleeve 207; support Plate 208; positioning system 3; locking plate 301; sliding block 302; connecting plate 303; second jack 304; second distance measuring module 305; ball bearing 306; second push rod 307; precast concrete block 4; first inclined surface 401; second inclined surface 402; conical column 403; alignment plate 5; notch 6; fixing cable 7; length adjustment unit 8; first telescopic rod 801; second telescopic rod 802; fixing unit 9; fixed pulley 901; adapter 902; C-shaped plate 903; clamping space 904; first screw 905; side plate 906; first boss 907; second boss 908; limiting groove 909; second pin 910; hook 10; base bank 11; water area 12. Modes for Carrying Out the Invention

[0044] As shown in Figures 1-5, an efficient lifting device that can adapt to the installation angle of concrete facing blocks includes an automatic unhooking system 2 and a positioning system 3 provided on a lifting device system 1. The lifting device system 1 includes two main hangers 101 arranged in parallel. The main hangers 101 are hingedly provided with a lifting arm 102 on the outside. The two opposing lifting arms 102 are connected by the automatic unhooking system 2. The lifting arms 102 are used to clamp the precast concrete blocks 4. The automatic unhooking system 2 includes a fixed frame 204. The fixed frame 204 has connecting rods 201 symmetrically telescopically provided on both sides. The connecting rods 201 and the lifting arms 102 are hinged. The positioning system 3 includes a second jack 304 fixed to the main hanger 101. The second jack 304 is slidably connected to the lock plate 301 through a sliding block 302. The lock plate 301 is fixed to the main hanger 101.

[0045] It also includes a detachable fixing unit 9 arranged on the hook 10, and the fixing unit 9 includes a fixed pulley 901, and two fixing cables 7 are wound parallel to the fixed pulley 901, and the two ends of the fixing cables 7 are respectively fixed on both sides of the main hanger 101. With this structure, the main hanger 101 serves as a load-bearing platform, and the boom 102 is driven to open or close under the telescopic action of the connecting rod 201, thereby completing the clamping or lowering of the precast concrete block 4. The staff directly controls the lifting work of the precast concrete block 4 on site, avoiding the repeated operations of manual buckling and unclamping, and ensuring the safety of the construction workers. At the same time, according to the size of the precast concrete block 4, the action of the second jack 304 can be used to adjust the function of the boom 102 to ensure the stability of the clamping. At the same time, when the lifting reaches the landing water area 12, the second jack 304 is used to complete the shift of the overall center of gravity, thereby tilting the sling system 1. The position of the hanging point of the fixed cable 7 on the fixed pulley 901 changes at this time, but is restricted by the length of the fixed cable 7 and changes within a certain angle range as a whole.

[0046] As shown in Figure 6-16, in the preferred solution, a connecting plate 303 is provided on the upper part of the sliding block 302, a side lifting ear 104 is fixed on the connecting plate 303, the lifting arm 102 and the side lifting ear 104 are hinged, and a first ranging module 107 is also provided on the lower side of the lifting arm 102. A plurality of balls 306 are evenly arranged in the locking plate 301, a second push rod 307 is provided on one side of the second jack 304, the second push rod 307 and the connecting plate 303 are hinged, and a second ranging module 305 is also provided on the second jack 304. With this structure, the locking plate 301 fixed on the main hanger 101 serves as the basis for force transmission, the second jack 304 changes the position of the side lifting ear 104 to complete the displacement of the boom 102, and the ball 306 ensures that the sliding block 302 moves smoothly. The cross-section of the sliding block 302 is an inverted T-shape, the overall base area is large, the force is more sufficient and balanced, and maintenance is convenient. The second ranging module 305 can accurately adjust the position of the boom 102 as needed to avoid excessive vibration and instability during adjustment.

[0047] In a preferred embodiment, the two main hangers 101 are connected by a plurality of auxiliary hangers 105. Upper lifting lugs 103 are symmetrically provided on both sides of the main hanger 101, and the ends of the fixed cables 7 are fixed to the upper lifting lugs 103. This structure ensures that the main hanger 101 has a strong load-bearing capacity through the upper lifting lugs 103.

[0048] In the preferred embodiment, a base 117 is provided parallel to the secondary hanger 105 near the upper lifting lug 103. The base 117 is connected via the length adjustment unit 8 and the fixing unit 9. The two sides of the length adjustment unit 8 are hingedly connected to the base 117 and the fixing unit 9, respectively. This structure allows the length adjustment unit 8 to lock the tilt angle, ensuring the overall stable positioning, strong resistance to external interference, and safe and efficient lifting.

[0049] In the preferred embodiment, a support plate 208 is provided in the middle of the fixed frame 204, and the first jack 203 is supported on the support plate 208. A first push rod 206 is provided on both sides of the first jack 203. A sleeve 207 is hinged on the first push rod 206, and the sleeve 207 is threadedly connected to the connecting rod 201. A signal receiving and sending module 202 is provided on the support plate 208. A plug plate 205 is provided on one side of the connecting rod 201. The boom 102 is hinged to the plug plate 205 through the first pin 106. With this structure, the staff can use the remote control to send a signal, and then the signal receiving and sending module 202 transmits the signal to control the movement of the first jack 203. The first push rod 206 and the sleeve 207 are hinged, which can eliminate the problem of misalignment caused by manufacturing precision and installation precision, avoid the situation of jamming caused by misalignment, ensure the stable guiding effect of the sleeve 207, and the accurate and reliable displacement of the connecting rod 201.

[0050] In the preferred embodiment, the boom 102 includes a contact portion 109 and a bearing portion 110 . The bearing portion 110 is hinged to the connecting rod 201 . A threaded hole 112 is provided on the lower side of the bearing portion 110 . A screw 111 is fixed on the contact portion 109 . The screw 111 and the threaded hole 112 are threadedly connected. With this structure, the lifting locking effect of the contact part 109 on the precast concrete block 4 can be better adjusted. The contact part 109 extends into the notch 6 of the precast concrete block 4, avoiding interference with the boom during lifting and positioning, and ensuring overall operation safety. At the same time, in order to better ensure response speed, after the base part 109 is hooked from the bottom of the precast concrete block 4, it can ensure that the upper end surface of the precast concrete block 4 is as close as possible to the lower end surfaces of the main hanger 101 and the auxiliary hanger 105. In this way, the movement or flipping of the precast concrete block 4 is limited, and the lifting process is safe. At the same time, multiple cylindrical columns 403 are arranged on the upper and lower sides of the precast concrete block 4. After the boom 102 and the precast concrete block 4 are relatively displaced, they will not break away from the limit lock of the boom 102. When the tilt angle needs to be adjusted, the second jack 304 is used to change the overall center of gravity position, thereby tilting, and the length adjustment unit 8 accurately adjusts the angle as needed.

[0051] In the preferred solution, an extension plate 113 and a limit plate 122 are provided on the outside of the boom 102, the extension plate 113 and the boom 102 are fixedly connected, a contact support plate 114 is supported on the limit plate 122, the contact support plate 114 is hinged to the boom 102 through a third pin 121, the contact support plate 114 and the extension plate 113 are connected by a spring 115, a pull rope 116 is detachably provided on the contact support plate 114, a third ranging module 108 is also provided on the outside of the boom 102, the third ranging module 108 is located on the lower side of the contact support plate 114, a first inclined surface 401 and a second inclined surface 402 are provided on the outside of the precast concrete block 4, a contact surface 118 is provided at the end of the contact support plate 114, and the contact surface 118 has the same slope as the first inclined surface 401 and the second inclined surface 402. With this structure, the contact support plate 114 in the initial state is pressed against the limit plate 122 by the spring 115. Since the side wall of the precast concrete block 4 has a first inclined surface 401 and a second inclined surface 402, when installing, the two adjacent precast concrete blocks 4 are in line contact. Since the slope surface of the slope protection itself has certain undulations, when the contact support plate 114 contacts the first inclined surface 401 of the adjacent installed precast concrete block 4, the first distance measuring module 107 obtains the distance of the installed precast concrete block 4 at the same time, and the contact support plate 114 is in contact with the first inclined surface 401 of the adjacent installed precast concrete block 4. It plays the role of hard limit, and the first ranging module 107 plays the role of soft limit. They cooperate with each other to ensure that no collision or interference occurs during installation, and the installation quality is good and the effect is high. Due to the existence of the first inclined surface 401 and the second inclined surface 402, the transmission signal of the first ranging module 107 is weakened after reflection. The third ranging module 108 plays an anti-foolproof design, ensuring signal stability from different positions and angles, and having a better ranging effect. The third ranging module 108 cooperates with the first ranging module 107 and backs up each other, and has a high safety mechanism.

[0052] As shown in Figures 17-25, in a preferred embodiment, a transfer seat 902 is provided on the fixing unit 9, and a fixed pulley 901 is rotatably mounted on the transfer seat 902 via a second pin 910. Two side plates 906 are provided in parallel on the upper portion of the transfer seat 902, and the side plates 906 are connected to two C-shaped plates 903 via a first screw 905. The two C-shaped plates 903 are arranged opposite to each other to form a clamping space 904, the size of which matches the shape of the hook 10. Two limiting grooves 909 are provided in parallel on the fixed pulley 901, and the fixing cable 7 is wound in the limiting grooves 909. The length adjustment unit 8 is hinged to the outside of the transfer seat 902. With this structure, the hook 10 can be used as the overall force application base, the C-shaped plate 903 can be stably clamped on the hook 10, and then the transfer seat 902 is used to complete the subsequent locking. The installation and disassembly are convenient, the use effect is good, and the two adjacent fixing cables 7 are independent of each other and do not interfere with each other.

[0053] In a preferred embodiment, a first boss 907 and a second boss 908 are provided in parallel on the outside of the adapter 902. The length adjustment unit 8 includes two diagonally arranged first and second telescopic rods 801 and 802. The first and second telescopic rods 801 and 802 on the same side are arranged alternately. The first telescopic rod 801 is hingedly connected by a first screw 905 and a second boss 908, while the second telescopic rod 802 is hingedly connected by a first screw 905 and a first boss 907. This structure ensures that the alternating arrangement of the first and second telescopic rods 801 and 802 ensures overall torque balance, avoiding torque imbalance and the problem of overall overturning. It is safe to use and has a good locking effect. The two diagonally opposite first and second telescopic rods 801 and 802 extend and retract in opposite directions.

[0054] In the preferred embodiment, the secondary hanger 105 is provided with a mounting hole 119. The alignment plate 5 is connected to the secondary hanger 105 via a second screw 120. The alignment plate 5 is inserted into the mounting hole 119. The precast concrete block 4 includes four evenly spaced notches 6. The lifting arm 102 is clamped within the notches 6. The precast concrete block 4 is placed on the side of the base bank 11 near the water 12. This structure ensures stable overall adjustment. The alignment plate 5 can correct the deviation and adjust the position of different precast concrete blocks 4 during lifting, resulting in high overall lifting accuracy and thus good installation quality.

[0055] The hoisting method of this device includes the following steps:

[0056] S1: The crane hook 10 lifts the sling system 1 of the present invention and places it directly above the precast concrete block 4;

[0057] S2: Use the remote control to adjust and tighten the automatic unhooking system 2, thereby opening the side boom 102 and slowly lowering it to a position not far above the precast concrete block 4 to be lifted;

[0058] S3: Adjust the position of the spreader system 1 of the present invention, and use the remote control again to control the automatic unhooking system 2 to open, so that the side boom 102 is tightened to clamp the precast concrete block 4;

[0059] S4: The crane slowly lifts the lifting system 1 and the precast concrete block 4;

[0060] S5: After reaching the designated position, the entire spreader system 1 is slowly lowered, and the spreader position is adjusted by the traction rope; when close to the water surface, the tilt angle of the spreader system 1 is adjusted;

[0061] S6: Not far from the lowering ground, the automatic positioning system 3 is activated. The first distance measuring module 107 measures the distance between the hoisted precast concrete block 4 and the already placed precast concrete block 4. The position of the entire spreader is adjusted by the second jack 304. The first distance measuring module 107 accurately records and controls the displacement distance of the entire spreader, thereby achieving precise placement of the precast concrete block.

[0062] S7: After the displacement adjustment is completed, the entire sling device is slowly lowered;

[0063] S8: After placement is completed, the automatic unhooking system 2 is tightened using the remote control to open the side boom 102 to achieve unhooking;

[0064] S9: Repeat steps S1 to S8 until all four precast concrete blocks for slope protection are placed.

[0065] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. In other words, equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. An efficient lifting device that can adapt to the installation angle of concrete face blocks, characterized by: The invention comprises an automatic unhooking system (2) and a positioning system (3) arranged on a sling system (1), wherein the sling system (1) comprises two main slings (101) arranged in parallel, the main slings (101) are hingedly provided with a sling arm (102) on the outside, the two opposing sling arms (102) are connected via the automatic unhooking system (2), the sling arms (102) are used to clamp the precast concrete blocks (4), the automatic unhooking system (2) comprises a fixed frame (204), the fixed frame (204) has connecting rods (201) symmetrically telescopically provided on both sides, the connecting rods (201) and the sling arms (102) are hingedly connected, and the positioning system (3) comprises a second jack (304) fixedly arranged on the main sling (101), the second jack (304) is slidably connected via a sliding block (302) and a locking plate (301), and the locking plate (301) is fixedly arranged on the main sling (101); It also includes a detachable fixing unit (9) arranged on the hook (10), the fixing unit (9) including a fixed pulley (901), two fixing cables (7) being wound around the fixed pulley (901) in parallel, and two ends of the fixing cables (7) being fixedly arranged on two sides of the main hanger (101) respectively.

2. According to claim 1, a high-efficiency hoisting device that can adapt to the installation angle of the concrete face block is characterized by: A connecting plate (303) is provided on the upper part of the sliding block (302), a side lifting ear (104) is fixedly provided on the connecting plate (303), the lifting arm (102) and the side lifting ear (104) are hinged, a first distance measuring module (107) is also provided on the lower side of the lifting arm (102), a plurality of balls (306) are evenly arranged in the locking plate (301), a second push rod (307) is provided on one side of the second jack (304), the second push rod (307) and the connecting plate (303) are hinged, and a second distance measuring module (305) is also provided on the second jack (304).

3. According to claim 1, a high-efficiency hoisting device that can adapt to the installation angle of the concrete face block is characterized by: The two main hangers (101) are connected via a plurality of auxiliary hangers (105), and upper hanging ears (103) are symmetrically provided on both sides of the main hanger (101), and ends of the fixing cables (7) are fixed on the upper hanging ears (103).

4. According to claim 3, an efficient hoisting device that can adapt to the installation angle of concrete facing blocks is characterized by: A base (117) is provided in parallel on the auxiliary hanger (105) near the upper hanger ear (103); the base (117) is connected via a length adjustment unit (8) and a fixing unit (9); and two sides of the length adjustment unit (8) are respectively hinged to the base (117) and the fixing unit (9).

5. According to claim 1, the efficient hoisting device capable of adapting to the installation angle of the concrete facing block is characterized in that: A support plate (208) is provided in the middle of the fixed frame (204), a first jack (203) is supported on the support plate (208), first push rods (206) are provided on both sides of the first jack (203), a sleeve (207) is hinged on the first push rod (206), the sleeve (207) and the connecting rod (201) are threadedly connected, a signal receiving and transmitting module (202) is provided on the support plate (208), a plug plate (205) is provided on one side of the connecting rod (201), and the boom (102) is hingedly connected to the plug plate (205) via the first pin shaft (106).

6. According to claim 1, a highly efficient hoisting device that can adapt to the installation angle of the concrete face block is characterized by: The boom (102) comprises a contact portion (109) and a bearing portion (110); the bearing portion (110) and a connecting rod (201) are hingedly connected; a threaded hole (112) is provided on the lower side of the bearing portion (110); a screw rod (111) is fixedly provided on the contact portion (109); and the screw rod (111) and the threaded hole (112) are threadedly connected.

7. The efficient hoisting device capable of adapting to the installation angle of the concrete facing block according to claim 6 is characterized in that: An extension plate (113) and a limit plate (122) are provided on the outside of the suspension arm (102); the extension plate (113) and the suspension arm (102) are fixedly connected; a contact support plate (114) is supported on the limit plate (122); the contact support plate (114) is hinged to the suspension arm (102) via a third pin shaft (121); the contact support plate (114) and the extension plate (113) are connected via a spring (115); and a detachable spring (115) is provided on the contact support plate (114). A pull rope (116) is provided, a third distance measuring module (108) is further provided on the outside of the boom (102), the third distance measuring module (108) is located on the lower side of the contact support plate (114), a first inclined surface (401) and a second inclined surface (402) are provided on the outside of the precast concrete block (4), a contact surface (118) is provided at the end of the contact support plate (114), and the contact surface (118) and the first inclined surface (401) and the second inclined surface (402) have the same slope.

8. According to claim 4, the efficient hoisting device capable of adapting to the installation angle of the concrete facing block is characterized in that: A transfer seat (902) is provided on the fixed unit (9), and the fixed pulley (901) is rotatably arranged on the transfer seat (902) via a second pin shaft (910). Two side plates (906) are arranged in parallel on the upper part of the transfer seat (902), and the side plates (906) are connected to two C-shaped plates (903) via first screws (905). The two C-shaped plates (903) are arranged opposite to each other to form a clamping space (904), and the size of the clamping space (904) matches the shape of the hook (10). Two limiting grooves (909) are arranged in parallel on the fixed pulley (901), and the fixing cable (7) is wound in the limiting grooves (909). The length adjustment unit (8) is hinged to the outer side of the transfer seat (902).

9. The efficient hoisting device capable of adapting to the installation angle of the concrete facing block according to claim 8 is characterized in that: A first boss (907) and a second boss (908) are arranged in parallel on the outer side of the adapter seat (902); the length adjustment unit (8) comprises two first telescopic rods (801) and a second telescopic rod (802) arranged diagonally; the first telescopic rods (801) and the second telescopic rods (802) on the same side are arranged alternately; the first telescopic rod (801) is hingedly connected to the second boss (908) via a first screw (905); and the second telescopic rod (802) is hingedly connected to the first boss (907) via a first screw (905).

10. The efficient hoisting device capable of adapting to the installation angle of the concrete facing block according to claim 3 is characterized in that: A mounting hole (119) is provided on the auxiliary hanger (105); the alignment plate (5) is connected to the auxiliary hanger (105) via a second screw (120); the alignment plate (5) is inserted into the mounting hole (119); the precast concrete block (4) includes four evenly arranged notches (6); the boom (102) is clamped in the notches (6); and the precast concrete block (4) is placed on a side of the base bank (11) close to the water area (12).

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