Measurement device for hoisting prefabricated building, and measurement method thereof

Abstract

The present invention provides a measurement device for hoisting a prefabricated building, and a measurement method thereof. The device comprises a cart body, wherein a control room is arranged at the top of the cart body; a telescopic support is mounted at the front side of the cart body; a measurement plate capable of horizontally ascending and descending is mounted at the tail end of the support; a plurality of alignment holes corresponding to ground dowels are provided in the measurement plate; annular spotlights are mounted at the peripheries of a pair of alignment holes at two ends and in the middle, are embedded in the measurement plate, and are used for emitting annular light columns to a grout sleeve at the bottom of an assembly member; a camera capable of moving in the lengthwise direction of the measurement plate is arranged on the measurement plate; and laser rangefinders are mounted at the tops of the front and rear ends of the measurement plate. The device can not only detect the ground dowels, but can also assist with alignment in the form of the annular spotlights emitting the light columns; remote observation and measurement is performed by means of the camera, making measurement convenient; and measurement and an assembly member adjustment process can be completed by one person.

Description

Measuring device and measuring method for hoisting of assembled buildings Technical Field

[0001] The present invention relates to the technical field of prefabricated building hoisting, and in particular to a measuring device and a measuring method for prefabricated building hoisting. Background Art

[0002] With the development of building industrialization, prefabricated buildings are produced in a standardized factory model, which reduces the manual participation process and is conducive to improving and ensuring the quality of construction projects. Compared with the labor-intensive construction method of traditional cast-in-place concrete structures, prefabricated buildings can better reflect the requirements of "four savings and one environmental protection".

[0003] During the installation of existing assembly parts, the standard procedure is to slow down the lowering speed after the assembly reaches a certain height from the floor. Two professional operators then hold the wall to guide the assembly into position, while another operator holds a small, ordinary flat mirror under the wall to observe and adjust the alignment. However, this is unsafe and inaccurate to rely on the naked eye. Furthermore, manual adjustments by two operators are cumbersome, and requiring multiple operators to complete the lifting operation also results in a waste of manpower. Technical issues

[0004] During the installation of existing assembly parts, the standard procedure is to slow down the lowering speed after the assembly reaches a certain height from the floor. Two professional operators then hold the wall to guide the assembly into position, while another operator holds a small, ordinary flat mirror under the wall to observe and adjust the alignment. However, this is unsafe and inaccurate to rely on the naked eye. Furthermore, manual adjustments by two operators are cumbersome, and requiring multiple operators to complete the lifting operation also results in a waste of manpower. Technical Solutions

[0005] The lifting mechanism is a kind of lifting mechanism that lifts up and down of assembly line, and the lifting mechanism of lifting up and down of support frame is installed in the lifting mechanism of lifting up and down of support frame.

[0006] Preferably, a telescopic slot is provided in the vehicle body, the slot of the telescopic slot is connected to the front side of the vehicle body, a first threaded rod is rotatably connected in the telescopic slot, a moving block is threadedly connected on the first threaded rod, the moving block is slidably connected in the telescopic slot, the bracket is fixedly installed on the front side of the bracket, and a first motor that can drive the first threaded rod to rotate is installed on the rear side of the vehicle body.

[0007] Preferably, a pair of vertically arranged first hydraulic cylinders are installed at the end of the bracket, and the telescopic ends of the first hydraulic cylinders are fixedly connected to a connecting plate, and the connecting plate is fixedly connected to the rear side of the measuring plate. The top of the vehicle body is provided with a pair of inlets and outlets connected to the telescopic slot, and the inlets and outlets are for the first hydraulic cylinders to enter.

[0008] Preferably, a strip-shaped cavity is provided in the measuring plate along its length direction, a second threaded rod is rotatably connected in the strip-shaped cavity, a slider is threadedly connected to the second threaded rod, the top and bottom of the slider are fixedly connected to mounting heads, the top and bottom of the measuring plate are provided with strip-shaped openings for the corresponding mounting heads to pass through, the camera is mounted on the top mounting head, and a second motor that can drive the second threaded rod to rotate is installed on the rear side of the measuring plate.

[0009] Preferably, the bottom of the mounting head is fixedly connected to an air blowing pipe, and downward-inclined air blowing heads are provided at the bottom of both sides of the air blowing pipe. A high-pressure air pump is installed on the front side of the fixing frame, and the air outlet end of the high-pressure air pump is connected to the air blowing pipe through a connecting pipe.

[0010] Preferably, a second hydraulic cylinder is fixedly mounted on the top front side of the fixed frame, the second hydraulic cylinder is arranged in a front-to-rear direction, and the telescopic end of the second hydraulic cylinder is fixedly connected to the top of the movable beam via a fixing plate.

[0011] Preferably, a slide is provided on the front side of the movable beam, a double-headed screw is rotatably connected in the slide, both sides of the double-headed screw are threadedly connected to a slide, the tail end of the clamping arm is fixedly connected to the corresponding slide, and a third motor is installed at the end of the movable beam to drive the double-headed screw to rotate.

[0012] Preferably, a plurality of rolling balls are evenly distributed on the side walls of the vertical guide plate.

[0013] Preferably, a third hydraulic cylinder is fixedly installed on the side wall of the clamping arm, the tail ends of the left and right pairs of push plates are commonly fixedly connected to abutment plates, a connecting rod is fixedly connected between the two pairs of abutment plates, and the telescopic end of the third hydraulic cylinder is fixedly connected to one of the abutment plates.

[0014] The present invention also provides a measurement method for hoisting an assembled building, comprising the following steps:

[0015] S1. The surveyor drives the vehicle to the hoisting side, starts the first motor to rotate the threaded rod, and drives the measuring plate to extend out of the telescopic slot through the moving block and bracket, so that the measuring plate is directly above the multiple dowels, and the multiple alignment holes are aligned with the corresponding dowels;

[0016] S2. Start the first hydraulic cylinder to move the measuring plate downward. Multiple dowels pass through the corresponding alignment holes. If a jam occurs, it indicates that some dowels are not in a vertical state and require manual correction.

[0017] S3. After all the dowels have passed through the corresponding alignment holes, the hoisting equipment hoists the assembly above the dowels. Laser rangefinders at both ends are used to measure the distance from the measuring plate to the bottom of the assembly to determine whether the assembly is parallel to the ground. Multiple circular spotlights are activated to project circular light columns toward the grouting sleeve at the bottom of the assembly. A second motor is activated to rotate the second threaded rod, which in turn drives the camera via the slider and mounting head. Surveyors watch the video in the control room to verify that the light columns illuminating the periphery of the grouting sleeve are aligned and not offset.

[0018] S4. If there is any deviation, just start the third motor to rotate the double-headed screw, drive a pair of clamping arms to move toward each other through two slides, drive a pair of vertical guide plates to clamp the assembly, start the second hydraulic cylinder to drive the moving beam to move back and forth, and adjust the assembly forward and backward. Start the third hydraulic cylinder, and drive a pair of push plates on the corresponding side to move against the assembly through the support plate and the connecting rod, and adjust it left and right until it is aligned. Then you can retract the measuring plate and lower the assembly to complete the lifting process. Beneficial effects

[0019] 1. The vehicle body is used, and a surveyor can directly operate the vehicle in the control room to perform measurement work. By installing a retractable measuring plate, the surveyor drives the vehicle body to the hoisting side, starts the first motor to rotate the threaded rod, and drives the measuring plate to extend out of the telescopic slot through the moving block and the bracket, so that the measuring plate is located directly above the multiple inserted rebars, and the multiple alignment holes are aligned with the corresponding inserted rebars. The first hydraulic cylinder is started to drive the measuring plate downward, and the multiple inserted rebars pass through the corresponding alignment holes. If a jam occurs, it means that the inserted rebar is not in a vertical state and needs to be manually corrected to complete the measurement process of the inserted rebar.

[0020] 2. Install a pair of laser rangefinders and use the laser rangefinders at both ends to measure the distance from the measuring plate to the bottom of the assembly to determine whether the assembly is parallel to the ground and avoid tilting the assembly.

[0021] 3. By installing ring spotlights and cameras, start multiple ring spotlights, and shoot out ring light poles toward the grouting sleeve at the bottom of the assembly. Start the second motor to drive the second threaded rod to rotate, and drive the camera to move through the slider and the installation head. The surveyor watches the video in the control room to observe whether the light poles irradiating the periphery of the grouting sleeve are aligned and not offset. The ring spotlights can be used to assist in alignment, and the camera can be used for long-distance observation, making measurement convenient.

[0022] 4. By installing the moving beam, a pair of clamping arms, a pair of vertical guide plates and two pairs of push plates, if there is any offset, just start the third motor to drive the double-headed screw to rotate, and drive the pair of clamping arms to move toward each other through the two slides, and drive the pair of vertical guide plates to clamp the assembly parts. Start the second hydraulic cylinder to drive the moving beam to move back and forth, and adjust the assembly parts back and forth. Start the third hydraulic cylinder, and drive the pair of push plates on the corresponding side to move against the assembly parts through the support plates and connecting rods, and adjust them left and right until they are aligned. The measurement and adjustment process of the assembly parts can be completed by one person, and the vertical guide plates can also ensure that the assembly parts will no longer deviate when they are lowered.

[0023] 5. By installing a high-pressure air pump and an air blow pipe, the air blow pipe will be driven to move while the camera is moving. The gas blown out by the high-pressure air pump enters the air blow pipe through the connecting pipe and is then blown out through multiple air blow heads. This can blow away the dust in the rebar and installation area, ensuring the subsequent grouting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a schematic structural diagram of the present invention;

[0025] FIG2 is a top view of the measuring plate proposed by the present invention;

[0026] FIG3 is an enlarged schematic diagram of the structure at point A in FIG1 ;

[0027] FIG4 is a front view of the movable beam proposed by the present invention;

[0028] FIG5 is a top view of the movable beam and a pair of clamping arms proposed by the present invention;

[0029] FIG6 is a schematic diagram of a measuring plate retracted state according to the present invention;

[0030] FIG7 is a schematic diagram of the measurement state of the present invention.

[0031] In the figure: 1 car body, 2 first motor, 3 control room, 4 telescopic slot, 5 first threaded rod, 6 inlet and outlet, 7 moving block, 8 high-pressure air pump, 9 fixed frame, 10 fixed plate, 11 slide, 12 double-headed screw, 13 moving beam, 14 clamping arm, 15 vertical guide plate, 16 third hydraulic cylinder, 17 connecting rod, 18 second motor, 19 push plate, 20 push plate, 21 bracket, 22 first hydraulic cylinder, 23 measuring plate, 24 alignment hole, 25 ring spotlight, 26 laser rangefinder, 27 strip opening, 28 camera, 29 slide, 30 second threaded rod, 31 mounting head, 32 air blowing pipe, 33 air blowing head, 34 strip cavity, 35 third motor, 36 slide, 37 rolling ball, 38 second hydraulic cylinder, 39 dowel, 40 assembly parts. Best Mode for Carrying Out the Invention

[0032] 1-7, a measuring device for assembled building hoisting includes a vehicle body 1, a control room 3 is provided on the top of the vehicle body 1, a retractable bracket 21 is installed on the front side of the vehicle body 1, and a measuring plate 23 that can be lifted and lowered horizontally is installed at the end of the bracket 21. A telescopic slot 4 is provided in the vehicle body 1, and the notch of the telescopic slot 4 is connected to the front side of the vehicle body 1. A first threaded rod 5 is rotatably connected in the telescopic slot 4, and a moving block 7 is threadedly connected to the first threaded rod 5. The moving block 7 is slidably connected in the telescopic slot 4. The bracket 21 is fixedly installed on the front side of the bracket 7, and a first motor 2 that can drive the first threaded rod 5 to rotate is installed on the rear side of the vehicle body 1. A pair of vertically arranged first Hydraulic cylinder 22, the telescopic end of the first hydraulic cylinder 22 is fixedly connected with a connecting plate, and the connecting plate is fixedly connected to the rear side of the measuring plate 23. A pair of inlets and outlets 6 connected to the telescopic slot 4 are provided on the top of the vehicle body 1. The inlet and outlet 6 are for the first hydraulic cylinder 22 to enter. Start the first motor 2 to drive the threaded rod 5 to rotate, drive the moving block 7 to move forward, and then drive the measuring plate 23 to extend out of the telescopic slot 4 through the bracket 21, so that the measuring plate 23 is located directly above the multiple dowels 39. Start the first hydraulic cylinder 22 to drive the measuring plate 23 to move downward, and multiple dowels 39 pass through the corresponding alignment holes 24. If jamming or obstruction occurs, it indicates that the dowels 39 are not in a vertical state, and manual correction of the dowels is required at this time.

[0033] The measuring plate 23 is provided with a plurality of alignment holes 24 corresponding to the ground dowels. A pair of alignment holes 24 at both ends and in the middle are installed with annular spotlights 25 on the periphery. The annular spotlights 25 are embedded in the measuring plate 23 and are used to emit annular light poles toward the grouting sleeve at the bottom of the assembly. A camera 28 movable along its length is installed on the measuring plate 23. A strip cavity 34 is provided inside the measuring plate 23 along its length. A second threaded rod 30 is rotatably connected to the strip cavity 34. A slider 29 is threadedly connected to the second threaded rod 30. The top and bottom of the slider 29 are fixedly connected to the mounting head 31. The measuring plate 23 The top and bottom are both provided with strip openings 27 for corresponding mounting heads 31 to pass through, and a camera 28 is installed on the top mounting head 31. A second motor 18 that can drive the second threaded rod 30 to rotate is installed on the rear side of the measuring plate 23. Multiple annular spotlights 25 are started to shoot an annular lamp column toward the grouting sleeve at the bottom of the assembly 40. The second motor 18 is started to drive the second threaded rod 30 to rotate, and the camera 28 is driven to move through the slider 29 and the mounting head 31. The surveyor watches the video in the control room 3 to observe whether the lamp column irradiated to the periphery of the grouting sleeve is aligned. The measurement is convenient and safe. Modes for Carrying Out the Invention

[0034] In addition, the bottom of the bottom mounting head 31 is fixedly connected to an air blowing pipe 32, and downward-inclined air blowing heads 33 are provided at the bottom of both sides of the air blowing pipe 32. A high-pressure air pump 8 is installed on the front side of the fixing frame 9, and the air outlet end of the high-pressure air pump 8 is connected to the air blowing pipe 32 through a connecting pipe. When the camera 28 moves, the air blowing pipe 32 is also driven to move. The gas blown out by the high-pressure air pump 8 enters the air blowing pipe 32 through the connecting pipe, and is then blown out through multiple air blowing heads 33, which can blow away the dust in the inserted reinforcement and the installation area, thereby ensuring the subsequent grouting effect.

[0035] Laser rangefinders 26 are installed on the top of both ends of the measuring plate 23. The laser rangefinders 26 at both ends measure the distance from the measuring plate 23 to the bottom of both ends of the assembly part 40 to determine whether the assembly part 40 is parallel to the ground. If the two data are consistent, it is parallel.

[0036] A vertical fixing frame 9 is fixedly connected to the top of the front side of the vehicle body 1, and a movable beam 13 that can be adjusted forward and backward is installed on the front side of the bottom of the fixing frame 9. A second hydraulic cylinder 38 is fixedly installed on the front side of the top of the fixing frame 9. The second hydraulic cylinder 38 is arranged in a forward and backward direction. The telescopic end of the second hydraulic cylinder 38 is fixedly connected to the top of the movable beam 13 through a fixed plate 10. Starting the second hydraulic cylinder 38 can drive the movable beam 13 to move forward and backward, and adjust the assembly part 40 in the forward and backward direction.

[0037] A pair of clamping arms 14 that can move toward each other are installed on the side walls of the moving beam 13. A slide 36 is provided on the front side of the moving beam 13. A double-headed screw 12 is rotatably connected in the slide 36. Both sides of the double-headed screw 12 are threadedly connected to the slide 11. The tail end of the clamping arm 14 is fixedly connected to the corresponding slide 11. A third motor 35 that can drive the double-headed screw 12 to rotate is installed at the end of the moving beam 13. Vertical guide plates 15 are fixedly installed on the opposite side walls of the pair of clamping arms 14. A plurality of rolling balls 37 are evenly distributed on the side walls of the vertical guide plates 15. The vertical guide plates 15 can also ensure that the assembly 10 no longer deviates when it descends.

[0038] Two pairs of push plates 20 that can move to the left or right are also installed on the clamping arm 14. A third hydraulic cylinder 16 is fixedly installed on the side wall of the clamping arm 14. The tail ends of the left and right pairs of push plates 20 are both fixedly connected to a support plate 19. A connecting rod 17 is fixedly connected between the two pairs of support plates 19. The telescopic end of the third hydraulic cylinder 16 is fixedly connected to one of the support plates 19. When the third hydraulic cylinder 16 is started, the push plates 20 on the corresponding side are driven to move against the assembly part 40 through the support plate 19 and the connecting rod 17 for left and right adjustment. Industrial Applicability

[0039] The present invention also provides a measurement method for hoisting an assembled building, comprising the following steps:

[0040] S1. The surveyor drives the vehicle body 1 to the hoisting side, starts the first motor 2 to rotate the threaded rod 5, and drives the measuring plate 23 to extend out of the telescopic slot 4 through the moving block 7 and the bracket 21, so that the measuring plate 23 is directly above the multiple dowels 39, and the multiple alignment holes 24 are aligned with the corresponding dowels 39;

[0041] S2. Start the first hydraulic cylinder 22 to move the measuring plate 23 downward. Multiple dowels 39 pass through the corresponding alignment holes 24. If a jam occurs, it indicates that one of the dowels 39 is not in a vertical state and needs to be manually corrected.

[0042] S3. After the multiple dowels 39 have all passed through the corresponding alignment holes 24, the hoisting equipment hoists the assembly 40 above the multiple dowels 39. The laser rangefinders 26 at both ends are used to measure the distance from the measuring plate 23 to the bottom of the two ends of the assembly 40 to determine whether the assembly 40 is parallel to the ground. The multiple ring-shaped spotlights 25 are activated to shoot ring-shaped light poles toward the grouting sleeve at the bottom of the assembly 40. The second motor 18 is activated to rotate the second threaded rod 30. The camera 28 is driven to move via the slider 29 and the mounting head 31. The surveyor watches the video in the control room 3 to observe whether the light poles irradiating the periphery of the grouting sleeve are aligned and not offset.

[0043] S4. If there is any deviation, just start the third motor 35 to drive the double-headed screw 12 to rotate, drive the pair of clamping arms 14 to move toward each other through the two slides 11, drive the pair of vertical guide plates 15 to clamp the assembly part 40, start the second hydraulic cylinder 38 to drive the movable beam 13 to move back and forth, and adjust the assembly part 40 forward and backward. Start the third hydraulic cylinder 16, and drive the pair of push plates 20 on the corresponding side to move against the assembly part 40 through the support plate 19 and the connecting rod 17, and adjust it left and right until it is aligned. Then you can retract the measuring plate 23 and lower the assembly part 40 to complete the lifting process.

[0044] The surveyor drives the vehicle body 1 to one side of the installation area, starts the first motor 2 to drive the threaded rod 5 to rotate, drives the moving block 7 to move forward, and then drives the measuring plate 23 to extend out of the telescopic slot 4 through the bracket 21, so that the measuring plate 23 is located directly above the multiple dowels 39, and the multiple alignment holes 24 are aligned with the corresponding dowels 39. The first hydraulic cylinder 22 is started to drive the measuring plate 23 to move downward, and the multiple dowels 39 pass through the corresponding alignment holes 24. If jamming or obstruction occurs, it indicates that some dowels 39 are not in a vertical state, and manual correction of the dowels is required at this time.

[0045] After the multiple dowels 39 are inserted through the corresponding alignment holes 24, the hoisting equipment hoists the assembly 40 above the multiple dowels 39. First, the laser rangefinders 26 at both ends are used to measure the distance from the measuring plate 23 to the bottom of the two ends of the assembly 40 to determine whether the assembly 40 is parallel to the ground. If the two data are consistent, it is parallel. Multiple annular spotlights 25 are started to shoot an annular lamp column toward the grouting sleeve at the bottom of the assembly 40. The second motor 18 is started to drive the second threaded rod 30 to rotate, and the camera 28 is driven to move by the slider 29 and the mounting head 31. The surveyor watches the video in the control room 3 to observe whether the lamp column irradiated to the periphery of the grouting sleeve is aligned (that is, whether the sleeve is located inside the lamp column) and is not offset.

[0046] If there is any offset, just start the third motor 35 to drive the double-headed screw 12 to rotate, drive the pair of clamping arms 14 to move toward each other through the two slides 11, drive the pair of vertical guide plates 15 to clamp the assembly part 40, start the second hydraulic cylinder 38 to drive the movable beam 13 to move back and forth, and adjust the assembly part 40 forward and backward. Start the third hydraulic cylinder 16, and drive the pair of push plates 20 on the corresponding side to move against the assembly part 40 through the support plate 19 and the connecting rod 17, and adjust it left and right until it is aligned. Then you can retract the measuring plate 23 and lower the assembly part 40 to complete the lifting process.

Claims

1. A measuring device for hoisting an assembled building, comprising a vehicle body (1), characterized in that: The top of the vehicle body (1) is provided with a control room (3), the front side of the vehicle body (1) is provided with a retractable bracket (21), the end of the bracket (21) is provided with a horizontally liftable measuring plate (23), the measuring plate (23) is provided with a plurality of alignment holes (24) corresponding to the ground dowels, and a pair of the alignment holes (24) at both ends and in the middle are provided with annular spotlights (25) on the periphery, the annular spotlights (25) are embedded in the measuring plate (23) and are used to emit an annular light column to the grouting sleeve at the bottom of the assembly part, and ... the pair of alignment holes (24) at both ends and in the middle are provided with annular spotlights (25) on the periphery, the plurality of alignment holes (24) are provided with annular spotlights (25) on the periphery, the plurality of alignment holes (24) are provided with annular spotlights (25) on the periphery, the plurality of alignment holes (24) are provided with annular spotlights (25) on the periphery, the plurality of alignment holes (24) are provided with annular spotlights (25) on the periphery, the plurality of alignment holes (24) are provided with annular spotlights (25) on the periphery, the plurality of alignment holes (24) are provided with annular spotlights (25 A camera (28) is provided for moving in the direction of rotation, and laser rangefinders (26) are installed on the top of both ends of the measuring plate (23). A vertical fixing frame (9) is fixedly connected to the top of the front side of the vehicle body (1). A movable beam (13) that can be adjusted in the forward and backward directions is installed on the front bottom side of the fixing frame (9). A pair of clamping arms (14) that can move toward each other are installed on the side walls of the movable beam (13). Vertical guide plates (15) are fixedly installed on the opposite side walls of the pair of clamping arms (14). Two pairs of push plates (20) that can move to the left or right are also installed on the clamping arms (14).

2. A measuring device for hoisting an assembled building according to claim 1, characterized in that: A telescopic slot (4) is provided in the vehicle body (1), a notch of the telescopic slot (4) is communicated with the front side of the vehicle body (1), a first threaded rod (5) is rotatably connected in the telescopic slot (4), a moving block (7) is threadedly connected on the first threaded rod (5), and the moving block (7) is slidably connected in the telescopic slot (4), a bracket (21) is fixedly mounted on the front side of the bracket (7), and a first motor (2) capable of driving the first threaded rod (5) to rotate is mounted on the rear side of the vehicle body (1).

3. The measuring device for hoisting an assembled building according to claim 2, characterized in that: A pair of vertically arranged first hydraulic cylinders (22) are installed at the end of the bracket (21), and the telescopic ends of the first hydraulic cylinders (22) are fixedly connected to a connecting plate, and the connecting plate is fixedly connected to the rear side of the measuring plate (23). The top of the vehicle body (1) is provided with a pair of inlets and outlets (6) connected to the telescopic slot (4), and the inlets and outlets (6) are for the first hydraulic cylinders (22) to enter.

4. The measuring device for hoisting an assembled building according to claim 1, characterized in that: The measuring plate (23) is provided with a strip-shaped cavity (34) along its length direction, a second threaded rod (30) is rotatably connected in the strip-shaped cavity (34), a slider (29) is threadedly connected to the second threaded rod (30), the top and bottom of the slider (29) are fixedly connected to mounting heads (31), the top and bottom of the measuring plate (23) are provided with strip-shaped openings (27) for corresponding mounting heads (31) to pass through, the camera (28) is mounted on the top mounting head (31), and a second motor (18) is mounted on the rear side of the measuring plate (23) to drive the second threaded rod (30) to rotate.

5. The measuring device for hoisting of assembled buildings according to claim 4, characterized in that: The bottom of the mounting head (31) is fixedly connected to an air blowing pipe (32), and downwardly inclined air blowing heads (33) are provided at the bottom of both sides of the air blowing pipe (32). A high-pressure air pump (8) is installed on the front side of the fixing frame (9), and the air outlet end of the high-pressure air pump (8) is connected to the air blowing pipe (32) via a connecting pipe.

6. The measuring device for hoisting of assembled buildings according to claim 1, characterized in that: A second hydraulic cylinder (38) is fixedly mounted on the front side of the top of the fixed frame (9). The second hydraulic cylinder (38) is arranged in a front-to-rear direction. The telescopic end of the second hydraulic cylinder (38) is fixedly connected to the top of the moving beam (13) via a fixed plate (10).

7. The measuring device for hoisting of assembled buildings according to claim 1, characterized in that: A slideway (36) is provided on the front side of the movable beam (13), a double-headed screw (12) is rotatably connected in the slideway (36), both sides of the double-headed screw (12) are threadedly connected to a slide seat (11), the tail end of the clamping arm (14) is fixedly connected to the corresponding slide seat (11), and a third motor (35) is installed at the end of the movable beam (13) to drive the double-headed screw (12) to rotate.

8. The measuring device for hoisting of assembled buildings according to claim 1, characterized in that: A plurality of rolling balls (37) are evenly distributed on the side walls of the vertical guide plate (15).

9. The measuring device for hoisting of assembled buildings according to claim 1, characterized in that: A third hydraulic cylinder (16) is fixedly mounted on the side wall of the clamping arm (14); the tail ends of the left and right pairs of push plates (20) are fixedly connected to a support plate (19); a connecting rod (17) is fixedly connected between the two pairs of support plates (19); and the telescopic end of the third hydraulic cylinder (16) is fixedly connected to one of the support plates (19).

10. A measuring method based on the measuring device for hoisting of assembled buildings according to any one of claims 1 to 9, characterized in that: The method includes the following steps: S1. The measurement personnel drives the vehicle body (1) to the hoisting side, starts the first motor (2) to drive the threaded rod (5) to rotate, and drives the measuring plate (23) to extend out of the telescopic slot (4) through the moving block (7) and the bracket (21), so that the measuring plate (23) is located directly above the plurality of dowels (39), and the plurality of alignment holes (24) are aligned with the corresponding dowels (39); S2, start the first hydraulic cylinder (22) to drive the measuring plate (23) to move downward, and multiple dowels (39) pass through the corresponding alignment holes (24). If a jam occurs, it indicates that some dowels (39) are not in a vertical state and need to be manually corrected; S3. After the plurality of dowel bars (39) are passed through the corresponding alignment holes (24), the hoisting equipment hoists the assembly (40) above the plurality of dowel bars (39). The laser rangefinders (26) at both ends are used to measure the distance from the measuring plate (23) to the bottom of the two ends of the assembly (40) to determine whether the assembly (40) is parallel to the ground. The plurality of annular spotlights (25) are started to shoot an annular light column toward the grouting sleeve at the bottom of the assembly (40). The second motor (18) is started to drive the second threaded rod (30) to rotate. The camera (28) is driven to move through the slider (29) and the mounting head (31). The measurement personnel watch the video in the control room (3) to observe whether the light column irradiated to the periphery of the grouting sleeve is aligned and not offset. S4. If there is any deviation, it is only necessary to start the third motor (35) to drive the double-headed screw (12) to rotate, drive the pair of clamping arms (14) to move toward each other through the two slides (11), drive the pair of vertical guide plates (15) to clamp the assembly (40), start the second hydraulic cylinder (38) to drive the moving beam (13) to move forward and backward, and adjust the assembly (40) forward and backward. Start the third hydraulic cylinder (16), drive the pair of push plates (20) on the corresponding side to move against the assembly (40) through the support plate (19) and the connecting rod (17), and adjust it left and right until it is aligned. Then, the measuring plate (23) can be retracted and the assembly (40) can be lowered to complete the lifting process.

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