A simple device for hoisting prefabricated concrete blocks and its use method

Abstract

The present invention relates to a simple device for hoisting concrete prefabricated blocks and a method for using the same, and relates to the field of concrete prefabricated block hoisting technology, which includes a supporting shell, a rotating mechanism, a rotating seat and a clamping mechanism, wherein the clamping mechanism includes an active drive component, two driven drive components, a clamping piece and a limit rod, wherein the driven drive component is rotatably arranged on the rotating seat, and one end of the driven drive component away from the rotating seat is hinged on the clamping piece, one end of the limit rod is rotatably connected to the rotating seat, and the other end is rotatably connected to the middle section of the clamping piece, and the active drive component is arranged on the rotating seat, and the active drive component is used to drive the driven drive component to move. The present invention can make the two clamping pieces approach or move away from each other through the active drive component and the driven drive component, so as to facilitate the clamping of the concrete prefabricated blocks, reduce the manual use of the concrete prefabricated blocks by construction personnel, reduce the labor intensity of construction personnel, and improve construction efficiency.

Description

Technical Field

[0001] The invention relates to the field of concrete prefabricated block hoisting technology, in particular to a simple concrete prefabricated block hoisting device. Background Art

[0002] With the development of my country's construction industry, various types of curbstones are often needed on highways. Curbstones are generally used for boundary stones on the edge of the road, also known as curbstones or edge stones. They are used to distinguish the roadway, sidewalk, green space, isolation belt and other parts of the road on the road surface, and play a role in ensuring the safety of pedestrians and vehicles and ensuring the neatness of the road edge.

[0003] The curbstone is cast by cement concrete precast blocks. At present, after the cement concrete precast blocks are cast, the lever principle is used to move the concrete precast blocks to the pallet, and the pallet is moved to the designated position, and then the concrete precast blocks are moved to the designated position for laying by manual movement.

[0004] With respect to the above-mentioned related technologies, the inventor believes that the labor intensity of construction workers will be increased during the process of manpower transfer of prefabricated concrete blocks, resulting in low construction efficiency. Summary of the invention

[0005] In order to reduce the labor intensity of construction workers in the process of moving precast concrete blocks and improve construction efficiency, the present invention provides a simple device for hoisting precast concrete blocks and a method for using the same.

[0006] In a first aspect, the present invention provides a simple device for hoisting prefabricated concrete blocks, which adopts the following technical solution:

[0007] A simple device for lifting concrete prefabricated blocks, comprising a supporting shell arranged on a lifting device, a rotating mechanism located on the supporting shell, a rotating seat located on the rotating mechanism, and a clamping mechanism located on the rotating seat, wherein the clamping mechanism comprises an active driving component, two driven driving components, a clamping piece, and a limiting rod, wherein the driven driving component is rotatably arranged on the rotating seat, an end of the driven driving component away from the rotating seat is hinged on the clamping piece, one end of the limiting rod is rotatably connected to the rotating seat, and the other end is rotatably connected to the middle section of the clamping piece, the active driving component is arranged on the rotating seat, and the active driving component is used to drive the driven driving component to move.

[0008] By adopting the above technical solution, when in use, adjust the lifting device, and the lifting device will lift the supporting shell. Adjust the rotating mechanism so that the clamping member can clamp the precast concrete block. Adjust the active drive component, and the active drive component drives the two driven drive components to move. Under the action of the limit rod, the driven drive component drives the two clamping members to approach each other in turn. In the process of the clamping members approaching each other, the precast concrete block can be clamped and fixed, and then the lifting device is adjusted to adjust the precast concrete block to the desired position. Through the active drive component and the driven drive component, the two clamping members can be moved closer or farther from each other, which is convenient for clamping the precast concrete block, can reduce the manual handling of the precast concrete blocks by construction personnel, can reduce the labor intensity of construction personnel, and improve construction efficiency.

[0009] Optionally, the driven drive assembly includes two drive arms, a drive gear and a first rotating shaft, the drive gear is coaxially arranged on the first rotating shaft, the first rotating shaft is rotatably connected to the rotating seat, one end of the drive arm is connected to the drive gear, and the other end is hinged to the clamping member, the drive gears are meshingly arranged, and the active drive assembly is used to drive the drive gear to rotate.

[0010] By adopting the above technical solution, the active driving component is adjusted, and the active driving component drives the driving gear to rotate. Under the action of the first rotating shaft, the driving gear can drive the driving arm to rotate. During the rotation of the driving arm, the clamping member can be driven to move, so that the clamping member can clamp the precast concrete block. The set driven driving component can drive the driving arm to rotate along the first rotating shaft under the driving action of the active driving component, so that the clamping member can clamp the precast concrete block.

[0011] Optionally, the active drive component includes a driving motor, a second rotating shaft and a driving gear, the second rotating shaft is rotatably connected to the rotating seat, the driving gear is coaxially arranged on the second rotating shaft, the driving gear is meshed with the driving gear, the driving shaft of the driving motor is connected to the second rotating shaft, and the driving motor is used to drive the second rotating shaft to rotate.

[0012] By adopting the above technical solution, the driving motor is adjusted, the driving shaft of the driving motor drives the second rotating shaft to rotate, the second rotating shaft drives the driving gear located thereon to rotate, the driving gear drives the driving gear meshing therewith to rotate, and thus the clamping member clamps and fixes the concrete prefabricated block. The active driving assembly provided can provide power for the rotation of the driving gear, making it easy for the driving arm to drive the limiting members to move closer to or farther from each other, which can reduce the labor intensity of construction personnel and improve work efficiency.

[0013] Optionally, an anti-skid pad is provided on the clamping member, and the anti-skid pad is provided on a side where the clamping members are close to each other.

[0014] By adopting the above technical solution, the anti-slip pad can increase the friction between the clamping member and the precast concrete block, increase the contact area between the clamping member and the precast concrete block, and reduce the sliding of the precast concrete block during transportation.

[0015] Optionally, two fixing mechanisms are also included, which include a fixing plate, two sliding blocks, a support rod and a fixing piece, the support rod being arranged on both sides of the clamping piece, the sliding block being coaxially arranged on the support rod, a sliding groove being opened on the fixing plate, the sliding groove being arranged along the length direction of the fixing plate, the sliding block being arranged in the sliding groove, and the sliding block being able to slide along the sliding groove, the fixing piece being arranged on the sliding block, and the fixing piece being used to fix the sliding block on the fixing plate.

[0016] By adopting the above technical solution, when the clamping member clamps the precast concrete block, the sliding block can slide along the sliding groove under the action of the support rod. When the clamping member clamps the precast concrete block, the construction personnel adjust the fixing member in sequence so that the fixing member fixes the sliding block on the fixing plate, thereby achieving the fixation between the two clamping members. The set fixing mechanism can strengthen the connection strength between the clamping members, reduce the concrete precast block from slipping off the clamping member, and improve the clamping strength of the concrete precast member.

[0017] Optionally, the fixing member includes an adjusting screw and an abutment ring, the adjusting screw passes through the abutment ring, and one end of the adjusting screw extends into the sliding groove and is connected to the support rod.

[0018] By adopting the above technical solution, the adjusting screw is rotated, the adjusting screw is passed through the abutment ring, and the adjusting screw is inserted into the threaded hole of the support rod. Under the action of the abutment ring, the sliding block can be fixed, so that the fixing plate is firmly fixed on the clamping piece. The fixed piece can strengthen the connection strength between the clamping pieces, keep the distance between the clamping pieces constant, and reduce the sliding of the concrete prefabricated block.

[0019] Optionally, the rotating mechanism includes a rotating shaft, a driving bevel gear, a driven bevel gear and a stepper motor, the rotating shaft passes through one end of the supporting shell and is connected to the rotating seat, the driven bevel gear is coaxially arranged on the rotating shaft, the driving bevel gear is coaxially arranged on the driving shaft of the stepper motor, and the stepper motor is used to drive the driving bevel gear to rotate.

[0020] By adopting the above technical solution, the stepper motor is adjusted, and the driving shaft of the stepper motor drives the active bevel gear to rotate, the active bevel gear drives the driven bevel gear to rotate, and the driven bevel gear drives the rotating shaft located thereon to rotate, so that the rotating shaft drives the rotating seat to rotate. The rotating mechanism provided can provide power for the rotation of the rotating seat, and can make the rotating seat rotate to a specified position, so that the clamping piece can clamp and fix the concrete prefabricated block, thereby improving applicability.

[0021] Optionally, it also includes a support component, which includes a limit ring and a plurality of support balls. The limit ring is coaxially arranged on the rotating seat. A rotation groove is opened on the side where the limit ring and the rotating seat are close to each other, and the support balls are arranged in the rotation groove.

[0022] By adopting the above technical solution, the rotating seat can be easily rotated under the action of the supporting balls and the limiting ring during the rotation process. The support assembly can reduce the separation of the rotating seat from the supporting shell during the rotation process, and can improve the stability of the rotating seat during the rotation process.

[0023] In a second aspect, the present application provides a method for using a simple device for hoisting prefabricated concrete blocks, which adopts the following technical solution:

[0024] A method for using a simple device for hoisting prefabricated concrete blocks comprises the following steps:

[0025] Step 1: Fix the support shell on the lifting equipment, adjust the rotating mechanism, the rotating mechanism drives the rotating seat to rotate, and the rotating seat drives the clamping mechanism to move, so that the clamping mechanism is aligned with the concrete precast block;

[0026] Step 2: Adjust the active drive assembly, the active drive assembly drives the driven drive assembly to move, and under the action of the limit rod, the driven drive assembly drives the two clamping members to move away from each other; at the same time, adjust the lifting device to move the support shell downward, adjust the active drive assembly, and make the two clamping members move closer to each other, so as to clamp the precast concrete block;

[0027] Step 3: Adjust the lifting equipment, which moves the precast concrete blocks to the designated location, and the construction workers lay the precast concrete blocks.

[0028] By adopting the above technical solution, the support shell is installed on the lifting equipment, and by adjusting the active drive component, under the action of the limit rod, the driven drive component can realize the two clamping parts approaching or moving away from each other, so as to facilitate the clamping and fixing of the precast concrete block. The construction personnel adjust the lifting equipment to move the precast concrete block to the specified position, and then another construction personnel will fine-tune the precast concrete block to achieve the laying of the precast concrete block. A method for using a simple device for lifting precast concrete blocks is provided, and two construction personnel cooperate to operate, so as to move and lay the precast concrete blocks, which can reduce the labor intensity of the construction personnel and improve the construction efficiency.

[0029] In summary, the present invention includes at least one of the following beneficial technical effects:

[0030] Through the active drive assembly and the driven drive assembly, the two clamping parts can be moved closer or farther from each other, which is convenient for clamping the precast concrete blocks, can reduce the manual use of the precast concrete blocks by construction workers, can reduce the labor intensity of construction workers, and improve construction efficiency;

[0031] The driven drive assembly is configured to rotate the drive arm along the first rotation axis under the driving action of the active drive assembly, so that the clamping member can clamp and fix the concrete prefabricated block;

[0032] The active drive assembly provided can provide power for the rotation of the drive gear, so that the drive arm can drive the limiters to move closer to or farther from each other, thereby reducing the labor intensity of construction workers and improving work efficiency;

[0033] The fixing mechanism provided can strengthen the connection strength between the clamping parts, reduce the concrete prefabricated blocks from slipping off the clamping parts, and improve the clamping strength of the concrete prefabricated blocks;

[0034] The rotating mechanism can provide power for the rotation of the rotating seat, and can make the rotating seat rotate to a specified position, so that the clamping piece can clamp and fix the concrete prefabricated block, thereby improving the applicability;

[0035] A method for using a simple device for lifting precast concrete blocks is provided, in which two construction workers cooperate to move and lay the precast concrete blocks, thereby reducing the labor intensity of the construction workers and improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 The present invention is a schematic diagram of the overall structure of a simple device for hoisting prefabricated concrete blocks according to an embodiment of the present invention.

[0037] Figure 2 It is a partial schematic diagram of a simple device for hoisting prefabricated concrete blocks according to an embodiment of the present invention.

[0038] Figure 3 It is a cross-sectional view of a simple device for hoisting prefabricated concrete blocks according to an embodiment of the present invention.

[0039] Figure 4 It is a cross-sectional view from another perspective of a simple device for hoisting prefabricated concrete blocks according to an embodiment of the present invention.

[0040] Figure 5 yes Figure 4 Enlarged schematic diagram of part A in the middle.

[0041] 1. Support shell; 11. Connecting ear; 2. Rotating mechanism; 21. Rotating shaft; 22. Active bevel gear; 23. Driven bevel gear; 24. Stepping motor; 25. Support assembly; 251. Limiting ring; 252. Supporting ball; 253. Rotating groove; 3. Rotating seat; 4. Clamping mechanism; 41. Active driving assembly; 411. Driving motor; 412. Second rotating shaft; 413. Active gear; 42. Driven driving assembly; 421. Driving arm; 422. Driving gear; 423. First rotating shaft; 43. Clamping member; 431. Anti-slip pad; 44. Limiting rod; 5. Fixing mechanism; 51. Fixing plate; 511. Sliding groove; 52. Sliding block; 53. Support rod; 54. Fixing member; 541. Adjusting screw; 542. Abutting ring. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-5 The present invention is described in further detail.

[0043] The embodiment of the present invention discloses a simple device for hoisting prefabricated concrete blocks. Figure 1 , Figure 2 and Figure 3 The simple device for hoisting concrete prefabricated blocks comprises a support shell 1 arranged on a lifting device, a rotating mechanism 2 located on the support shell 1, a rotating seat 3 located on the rotating mechanism 2, a clamping mechanism 4 located on the rotating seat 3, and two fixing mechanisms 5. Two connecting lugs 11 are integrally connected to the support shell 1, and a steel strand is hung on the arm of the lifting device, and the bottom of the steel strand passes through the two connecting lugs 11. By adjusting the lifting device, the lifting device lifts the support shell 1 through the steel strand, which is convenient for construction personnel to adjust the position of the support shell 1. The lifting device and the steel strand are not drawn in this embodiment.

[0044] Reference Figure 2, in order to reduce the construction workers' handling of concrete prefabricated blocks and improve construction efficiency. The clamping mechanism 4 includes an active drive component 41, two driven drive components 42, a clamping member 43 and a limit rod 44. The driven drive component 42 includes two drive arms 421, a drive gear 422 and a first rotating shaft 423. The drive gear 422 is coaxially arranged on the first rotating shaft 423. The first rotating shaft 423 is connected to the rotating seat 3 through a bearing. The outer ring of the bearing is interference fit with the rotating seat 3, and the inner ring of the bearing is interference fit with the first rotating shaft 423. The bearing is not marked in this embodiment. One end of the drive arm 421 is welded to the drive gear 422, and the other end is hinged to the clamping member 43. The two drive gears 422 are meshed with each other. One end of the limit rod 44 is connected to the rotating seat 3 through a bearing, and the other end is hinged to the middle section of the clamping member 43. The active drive component 41 is arranged on the rotating seat 3, and the active drive component 41 can drive the driven drive component 42 to move.

[0045] Reference Figure 2 , in order to provide power for the rotation of the two driving gears 422 and reduce the labor intensity of the construction workers. The active drive assembly 41 includes a driving motor 411, a second rotating shaft 412 and a driving gear 413, and the second rotating shaft 412 is connected to the rotating seat 3 through a bearing. The driving gear 413 is coaxially arranged on the second rotating shaft 412, and the driving gear 413 is connected to the second rotating shaft 412 through a key, and the driving gear 413 is meshed with the driving gear 422. The driving shaft of the driving motor 411 is connected to the second rotating shaft 412 through a coupling, and the base of the driving motor 411 is fixed to the rotating seat 3 by bolts. By adjusting the driving motor 411, the driving shaft of the driving motor 411 can drive the second rotating shaft 412 to rotate. An anti-skid pad 431 is bonded to the side where the clamping sections of the clamping member 43 are close to each other. The anti-skid pad 431 can improve the clamping strength of the concrete precast block. The clamping member 43 provided in this embodiment is also suitable for moving and using special-shaped prefabricated concrete blocks.

[0046] Reference Figure 3 In order to improve the construction efficiency, the rotating mechanism 2 includes a rotating shaft 21, a driving bevel gear 22, a driven bevel gear 23 and a stepper motor 24. The rotating shaft 21 passes through the bottom of the supporting shell 1 and is connected to the rotating seat 3, and the rotating shaft 21 is welded to the rotating seat 3. The driven bevel gear 23 is coaxially arranged on the rotating shaft 21, and the driven bevel gear 23 is connected to the rotating seat 3 by a key. The driving bevel gear 22 is coaxially arranged on the driving shaft of the stepper motor 24, and the driving bevel gear 22 is connected to the driving shaft of the stepper motor 24 by a key. The base of the stepper motor 24 is fixed to the supporting shell 1 by bolts, and by adjusting the stepper motor 24, the driving shaft of the stepper motor 24 can drive the driving bevel gear 22 to rotate.

[0047] Reference Figure 3 In order to improve the stability of the rotating seat 3 during the rotation process, a support assembly 25 is also included. The support assembly 25 includes a limit ring 251 and a plurality of support balls 252. The limit ring 251 is coaxially arranged on the rotating seat 3, the limit ring 251 is arranged between the rotating seat 3 and the driven bevel gear 23, and the limit ring 251 is welded on the rotating shaft 21. A rotation groove 253 is provided on the side where the limit ring 251 and the rotating seat 3 are close to each other, and the support balls 252 are arranged in the rotation groove 253. When the rotating shaft 21 drives the limit ring 251 to rotate, under the action of the support balls 252, the stability of the rotating seat 3 during the rotation process can be improved.

[0048] Reference Figure 4 and Figure 5 , in order to improve the clamping strength of the clamping member 43 on the precast concrete block and reduce the falling of the precast concrete block. The fixing mechanism 5 includes a fixing plate 51, two sliding blocks 52, a support rod 53 and a fixing member 54, the support rod 53 is arranged on both sides of the clamping member 43, and the sliding block 52 is coaxially arranged on the support rod 53. A sliding groove 511 is provided on the fixing plate 51, and the sliding groove 511 is distributed along the length direction of the fixing plate 51. The sliding block 52 is arranged in the sliding groove 511, and the sliding block 52 can slide along the sliding groove 511. The fixing member 54 is arranged on the sliding block 52, and the fixing member 54 includes an adjusting screw 541 and an abutting ring 542. The adjusting screw 541 is arranged to penetrate the abutting ring 542, and one end of the adjusting screw 541 extending into the sliding groove 511 is connected to the support rod 53 by a bolt. By rotating the adjusting screw 541 , the adjusting screw 541 is threadedly connected with the support rod 53 , and under the action of the abutting ring 542 , the limiting ring 251 can be fixed on the fixing plate 51 .

[0049] The implementation principle of a simple device for hoisting precast concrete blocks in the embodiment of the present application is as follows: when in use, adjust the hoisting device, and the hoisting device will hoist the support shell 1. Adjust the stepper motor 24, the driving shaft of the stepper motor 24 drives the active bevel gear 22 to rotate, the active bevel gear 22 drives the driven bevel gear 23 meshing therewith to rotate, the driven bevel gear 23 drives the rotating shaft 21 located thereon to rotate, and under the action of the supporting ball 252 and the limiting ring 251, the rotating shaft 21 drives the rotating seat 3 to rotate. Align the clamping member 43 with the precast concrete block.

[0050] The driving motor 411 is adjusted, and the driving shaft of the driving motor 411 drives the second rotating shaft 412 to rotate, and the second rotating shaft 412 drives the driving gear 413 located thereon to rotate, and the driving gear 413 drives the driving gear 422 meshed therewith to rotate, and the driving gear 422 drives another driving gear 422 meshed therewith to rotate. Under the action of the first rotating shaft 423, the driving gear 422 can drive the driving arm 421 to move. During the rotation of the driving arm 421, under the action of the limiting rod 44, the driving arm 421 can drive the clamping members 43 to approach each other, so that the clamping members 43 can clamp and fix the concrete precast block.

[0051] When the clamping member 43 is clamping the concrete precast block, under the action of the support rod 53, the sliding block 52 can slide along the sliding groove 511. When the clamping member 43 is clamping the concrete precast block, the construction personnel turn the adjusting screw 541 in sequence, so that the adjusting screw 541 passes through the abutment ring 542, and the adjusting screw 541 is inserted into the threaded hole of the support rod 53. Under the action of the abutment ring 542, the sliding block 52 can be fixed, so that the fixing plate 51 is firmly fixed on the clamping member 43, and then the fixation between the two clamping members 43 is achieved. Finally, the lifting equipment is adjusted to adjust the concrete precast block to the desired position. For example: by adjusting the lifting equipment, under the action of the clamping member 43, the concrete precast blocks can be moved to the forklift frame in sequence, so that the concrete precast blocks are neatly arranged on the forklift frame, which is convenient for the construction personnel to adjust the concrete precast blocks to the specified position by forklift.

[0052] The present application also discloses a detection method for a simple device for hoisting prefabricated concrete blocks, which uses the simple device for hoisting prefabricated concrete blocks described above and includes the following steps:

[0053] When installing the support housing 1, adjust the support housing 1, hang the connecting ear piece 11 on the support housing 1 on the steel strand, and hang the top of the steel strand on the lifting device. Adjust the lifting device, and the arm of the lifting device drives the support housing 1 to move through the steel strand. Adjust the stepper motor 24, and the driving shaft of the stepper motor 24 drives the active bevel gear 22 to rotate, and the active bevel gear 22 drives the driven bevel gear 23 to rotate, so as to realize the rotation of the rotating seat 3, so that the clamping member 43 is aligned with the concrete precast block.

[0054] By adjusting the driving motor 411, the two clamping members 43 can be brought closer to each other, so that the clamping members 43 clamp the precast concrete block; at the same time, the sliding block 52 can slide along the sliding groove 511, and the construction personnel turn the adjusting screw 541 in turn to stop the sliding of the sliding block 52, so that the fixing plate 51 is firmly fixed on the clamping member 43, thereby achieving fixation between the two clamping members 43, and strengthening the clamping strength of the clamping member 43 on the precast concrete block, reducing the possibility of falling during the movement.

[0055] Adjust the lifting device, and the lifting device moves the precast concrete block to the specified position. Under the fine adjustment of the construction personnel, the construction personnel turn the adjustment screw 541 to allow the sliding block 52 to continue to slide along the sliding groove 511. Adjust the drive motor 411 to make the two clamps 43 move away from each other, so that the clamps 43 no longer clamp the precast concrete block, and the precast concrete block falls to the specified position. When it is necessary to adjust the movement of other precast concrete blocks, repeat the above steps to achieve the movement of the precast concrete blocks.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A simple device for hoisting prefabricated concrete blocks, characterized in that: The invention comprises a support shell (1) arranged on the lifting device, a rotating mechanism (2) located on the support shell (1), a rotating seat (3) located on the rotating mechanism (2), and a clamping mechanism (4) located on the rotating seat (3); the clamping mechanism (4) comprises an active drive component (41), two passive drive components (42), a clamping member (43), and a limiting rod (44); the passive drive component (42) is rotatably arranged on the rotating seat (3); one end of the passive drive component (42) away from the rotating seat (3) is hinged on the clamping member (43); one end of the limiting rod (44) is rotatably connected to the rotating seat (3), and the other end is rotatably connected to the middle section of the clamping member (43); the active drive component (41) is arranged on the rotating seat (3), and the active drive component (41) is used to drive the passive drive component (42) to move; The device further comprises two fixing mechanisms (5), wherein the fixing mechanisms (5) comprise a fixing plate (51), two sliding blocks (52), a support rod (53) and a fixing member (54), wherein the support rod (53) is arranged on both sides of the clamping member (43), the sliding block (52) is coaxially arranged on the support rod (53), the fixing plate (51) is provided with a sliding groove (511), the sliding groove (511) is arranged along the length direction of the fixing plate (51), the sliding block (52) is arranged in the sliding groove (511), and the sliding block (52) can slide along the sliding groove (511), and the fixing member (54) is arranged on the sliding block (52), and the fixing member (54) is used to fix the sliding block (52) on the fixing plate (51); The rotating mechanism (2) comprises a rotating shaft (21), a driving bevel gear (22), a driven bevel gear (23) and a stepping motor (24); the rotating shaft (21) passes through one end of the supporting housing (1) and is connected to the rotating seat (3); the driven bevel gear (23) is coaxially arranged on the rotating shaft (21); the driving bevel gear (22) is coaxially arranged on a driving shaft of the stepping motor (24); and the stepping motor (24) is used to drive the driving bevel gear (22) to rotate; It also comprises a support assembly (25), the support assembly (25) comprising a limit ring (251) and a plurality of support balls (252), the limit ring (251) being coaxially arranged on the rotating seat (3), a rotating groove (253) being provided on a side where the limit ring (251) and the rotating seat (3) are close to each other, and the support balls (252) are arranged in the rotating groove (253).

2. The simple device for hoisting prefabricated concrete blocks according to claim 1 is characterized in that: The driven drive assembly (42) comprises two drive arms (421), a drive gear (422) and a first rotating shaft (423); the drive gear (422) is coaxially arranged on the first rotating shaft (423); the first rotating shaft (423) is rotatably connected to the rotating seat (3); one end of the drive arm (421) is connected to the drive gear (422) and the other end is hinged to the clamping member (43); the drive gears (422) are meshed with each other, and the active drive assembly (41) is used to drive the drive gear (422) to rotate.

3. A simple device for hoisting prefabricated concrete blocks according to claim 2, characterized in that: The active drive assembly (41) comprises a drive motor (411), a second rotating shaft (412) and a driving gear (413); the second rotating shaft (412) is rotatably connected to the rotating seat (3); the driving gear (413) is coaxially arranged on the second rotating shaft (412); the driving gear (413) is meshed with a drive gear (422); the drive shaft of the drive motor (411) is connected to the second rotating shaft (412); and the drive motor (411) is used to drive the second rotating shaft (412) to rotate.

4. The simple device for hoisting prefabricated concrete blocks according to claim 2 is characterized in that: An anti-skid pad (431) is provided on the clamping member (43), and the anti-skid pad (431) is provided on a side where the clamping members (43) are close to each other.

5. The simple device for hoisting prefabricated concrete blocks according to claim 1 is characterized in that: The fixing member (54) comprises an adjusting screw (541) and an abutment ring (542); the adjusting screw (541) is arranged to pass through the abutment ring (542); one end of the adjusting screw (541) extends into the sliding groove (511) and is connected to the support rod (53).

6. A method for using a simple device for hoisting prefabricated concrete blocks, characterized in that: The simple device for hoisting prefabricated concrete blocks as described in any one of claims 1 to 5 comprises the following steps: Step 1: fix the support shell (1) on the lifting device, adjust the rotating mechanism (2), the rotating mechanism (2) drives the rotating seat (3) to rotate, and the rotating seat (3) drives the clamping mechanism (4) to move, so that the clamping mechanism (4) is aligned with the concrete precast block; Step 2: adjusting the active drive component (41), so that the active drive component (41) drives the driven drive component (42) to move, and under the action of the limit rod (44), the driven drive component (42) drives the two clamping members (43) to move away from each other; at the same time, adjusting the lifting device to move the support shell (1) downward, adjusting the active drive component (41), so that the two clamping members (43) move closer to each other, thereby clamping the precast concrete block; Step 3: Adjust the lifting equipment, the lifting equipment moves the precast concrete blocks to the designated location, and the construction workers lay the precast concrete blocks.

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