Building construction measuring device

Abstract

The invention relates to a building construction measuring device, and belongs to the technical field of assembly type building installation, the building construction measuring device comprises a suspension frame body, the suspension frame body is used for being fixedly installed at the top of a prefabricated part, a track is fixed at one end of the suspension frame body, the track is perpendicular to the suspension frame body, and a slab staggering measuring trolley is installed on the track; the staggered slab measuring trolley comprises a trolley body, the trolley body is installed on a track, a walking driving system is installed on the trolley body, the trolley body can move up and down on the track under driving of the walking driving system, and a left box is arranged on the left side of the trolley body. In conclusion, the device is mainly composed of the suspension bracket body, the track, the staggered slab measuring trolley and a complex transmission and measuring mechanism inside the staggered slab measuring trolley, the overall structural design concept is ingenious, and through combination of a mechanical structure and automatic control, the potential safety hazard and the precision problem existing in a traditional handheld measuring tool are solved; the innovative equipment has important significance for improving the quality and efficiency of fabricated building construction.

Description

Technical Field

[0001] The invention belongs to the technical field of assembled building installation, and in particular relates to a building construction measurement device. Background Art

[0002] Prefabricated buildings refer to buildings that transfer a large amount of on-site work in traditional construction methods to factories, where building components and accessories (such as floor slabs, wall panels, stairs, balconies, etc.) are processed and manufactured in the factory, transported to the construction site, and assembled and installed on site through reliable connection methods.

[0003] In prefabricated building construction, after completing the installation of a stage of prefabricated components, it is necessary to check whether the outer edges of these components are aligned to prevent displacement or misalignment of walls between different layers. Currently, the detection of whether there is such displacement (the so-called "misalignment") between the upper and lower walls is carried out by handheld measuring tools. Although this method is quick and convenient, it has certain safety hazards and accuracy issues; specifically, the operator may need to get close to the edge of the building or lean out of the building to measure, which increases the risk of falling from height. At the same time, since it is impossible to ensure that the line of sight is completely perpendicular to the measuring tool, this may lead to inaccurate readings, which in turn affects the overall accuracy of the installation of prefabricated components. The utility model patent with patent number ZL202223575210.2 discloses a prefabricated component installation outer contour flatness detection device. The prefabricated component installation outer contour flatness detection device relies on the integration of multi-directional technologies such as drones, image processing technology, processors and displays to achieve automatic and accurate calculation of the misalignment. However, this technology involves relatively complex technologies such as image processing algorithms and three-dimensional coordinate positioning. On the one hand, it requires high professional knowledge of technical personnel. On the other hand, the development of software, drones, high-definition cameras and processor hardware use make the technology investment cost high. Summary of the invention

[0004] The present invention aims to provide a construction measurement device to solve the technical problem of certain safety hazards and accuracy in detecting the displacement between upper and lower walls by handheld measurement tools in current prefabricated building construction.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: A construction measurement device comprises a suspension frame, the suspension frame is used to be fixedly installed on the top of a prefabricated component, one end of the suspension frame is fixed with a track, the track is perpendicular to the suspension frame, and a staggered measurement trolley is installed on the track; The staggered measuring trolley comprises a vehicle body, which is mounted on a track, and a travel driving system is mounted on the vehicle body. Under the drive of the travel driving system, the vehicle body can move up and down on the track. A left box is arranged on the left side of the vehicle body, and a right box is arranged on the right side of the vehicle body. A through hole is opened in the vehicle body in a horizontal direction, and a hinge shaft is rotatably installed in the through hole through a bearing, and two ends of the hinge shaft respectively extend into the left box and the right box, and a left arm rod and a right arm rod are respectively arranged in the left box and the right box, and the left arm rod and the right arm rod are both inclinedly arranged, and the upper ends of the left arm rod and the right arm rod are fixed on the hinge shaft, and a notch is also opened in the side of the left box and the right box, and the notch in the side of the left box and the right box provides space for the movement of the left arm rod and the right arm rod, and a wheel axle is rotatably installed between the lower ends of the left arm rod and the right arm rod, and a travel wheel is installed on the wheel axle, and the travel wheel contacts the outer wall surface of the prefabricated component; A torque control mechanism is also provided in the left box, which provides torque to the hinge shaft, so that the hinge shaft has a rotation tendency, and the left arm and the right arm obtain swing potential energy, and finally a contact pressure is generated between the walking wheel and the outer wall surface of the prefabricated component; A misalignment measuring device is also installed on the right side of the right cassette, and the misalignment measuring device is used to measure the misalignment displacement.

[0006] Furthermore, the misalignment measuring device includes a measuring box, a first short shaft and a second short shaft are rotatably mounted on the right inner wall of the measuring box, a small gear and a cam are arranged on the first short shaft, an end of the hinge shaft extends into the measuring box, a large gear is mounted on the end of the hinge shaft, and the large gear is meshed with the small gear; The cam is a symmetrical structure. A sliding groove is also provided on the right inner wall of the measuring box. A sliding column is provided in the sliding groove. The sliding column can slide in the sliding groove. A first ball bearing is installed at the end of the sliding column. A linkage member is installed on the second short shaft. The linkage member has a "7"-shaped structure. The linkage member is composed of two swing arms. The first ball bearing is located between the cam and one of the swing arms of the linkage member, and the first ball bearings are in contact with the outer edge of the cam and the swing arm. An energy storage tube is also installed on the inner wall of the right side of the measuring box. The energy storage tube is installed in the vertical direction. A push block is arranged in the energy storage tube. The push block can move up and down in the energy storage tube. A threaded hole is opened in the center of the push block. A vertical rod is threadedly installed in the threaded hole of the push block. A second ball bearing is installed at the lower end of the vertical rod. The second ball bearing contacts with another swing arm of the linkage. A return spring is arranged in the energy storage tube, and the end of the return spring contacts the push block. A long slit hole is correspondingly opened at the connection between the right side box wall of the measuring box and the energy storage tube, and a pointer assembly is installed in the long slit hole; the pointer assembly includes a column and a pointer, the column is inserted in the long slit hole, the end of the column located in the measuring box is the inner end, and the end of the column located outside the measuring box is the outer end, the pointer is fixed to the outer end of the column, and a steel sleeve is fixed to the inner end of the column, the axis of the steel sleeve coincides with the axis of the vertical rod, and the inner end of the column is also covered with a first compression spring and a gasket, and the first compression spring is located between the gasket and the steel sleeve; a length scale line is set on the right side outer wall of the measuring box, and the pointer points to the length scale line.

[0007] Furthermore, a square channel is provided on the vehicle body, and the square channel is for the track to pass through. The vehicle body is sleeved on the track through the square channel, and a long rack is installed on the side of the track; The travel drive system includes a square box body and a controller. The square box body is installed on the side of the vehicle body. A travel motor and a first shaft body are installed in the square box body. The first shaft body is rotatably installed in the square box body through a bearing. A driving gear and a driven bevel gear are installed on the first shaft body. A driving bevel gear is installed on the main shaft of the travel motor. The driving bevel gear is meshed with the driven bevel gear. A through opening is correspondingly opened at the connection between the square box body and the vehicle body. The driving gear is meshed with the long rack. The through opening provides space for the driving gear. A travel switch is installed at the upper end of the track, an encoder is installed on the wheel axle, and a controller is connected with the travel switch, the encoder and the travel motor respectively.

[0008] Furthermore, the torque control mechanism includes a short rack and a square plate, the short rack is mounted on the inner wall of the left box by two bolts, a long hole body is provided on the short rack, the two bolts are passed through the long hole body, the short rack can move along a straight line on the two bolts, and the bolts slide relative to the long hole body; A semicircular gear is provided at the upper end of the left arm rod, which is meshed with a short rack. A guide rod is fixed to the end of the short rack. A square plate is welded to the inner wall of the left box. A through hole is opened on the square plate. The guide rod passes through the through hole on the square plate. A limiting head is provided at the end of the guide rod. A second compression spring is also mounted on the guide rod, and both ends of the second compression spring are in contact with the short rack and the square plate.

[0009] Furthermore, the suspension frame includes a cross arm, a first clamping plate is fixed at one end of the cross arm, and a row of sockets are provided at the other end of the cross arm. A movable seat is mounted on the end of the cross arm, and the movable seat can be moved on the cross arm. The movable seat can be fixed to the end of the cross arm by two long bolts, and the two long bolts are passed through two of the sockets. A second clamping plate is fixed to the bottom of the movable seat.

[0010] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention is installed on the top of the prefabricated component, and does not require workers to approach the edge of the building or lean out of the building to measure, thereby reducing the risk of high-altitude operations; (2) The present invention uses mechanical components such as gears, cams, and springs to amplify the displacement change of the running wheel caused by misalignment, and reads the data by pointing the pointer to the scale line, thereby improving the accuracy of the measurement. (3) The travel drive system allows the measurement trolley to automatically move up and down along the track, while the combination of the encoder and controller ensures that the trolley can travel the preset distance and return to the starting position, thus automating the measurement process. (4) Since the cam has a symmetrical structure, the device can not only measure the inward contraction of the upper prefabricated component relative to the lower one (i.e., inward misalignment), but also measure the outward expansion of the upper component (i.e., outward misalignment); In summary, the present invention is mainly composed of a suspension frame, a track, a staggered measuring trolley and its complex internal transmission and measuring mechanism. The overall structural design is ingenious. Through the combination of mechanical structure and automatic control, it solves the safety hazards and accuracy problems of traditional handheld measuring tools. This innovative equipment is of great significance to improving the quality and efficiency of prefabricated building construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a structural schematic diagram of a construction measurement device of the present invention; Figure 2 This is a structural diagram of the misalignment measurement trolley; Figure 3 This is the right side view of the misalignment measurement trolley; Figure 4 It is a structural schematic diagram of the inner wall on the right side of the measuring box; Figure 5 This is a schematic diagram of the structure of the inner wall on the right side of the measuring box after removing the small gear and the large gear; Figure 6 It is a structural schematic diagram of the outer wall on the right side of the measuring box; Figure 7 It is a schematic diagram of the structure of the pointer component; Figure 8 It is a structural diagram of the walking drive system; Fig. 9 It is a structural schematic diagram of the torque control mechanism. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0013] The present invention is further described in detail below in conjunction with embodiments.

[0014] like Figure 1-7 As shown, a specific embodiment 1 of a construction measurement device provided by the present invention: A construction measurement device includes a suspension frame, which is used to be fixedly installed on the top of a prefabricated component. The suspension frame includes a cross arm 1, a first clamping plate 2 is fixed to one end of the cross arm 1, and a row of sockets 3 are provided at the other end of the cross arm 1. A movable seat 4 is mounted on the end of the cross arm 1, and the movable seat 4 can be movable on the cross arm 1. The movable seat 4 can be fixed to the end of the cross arm 1 by two long bolts 5, and the two long bolts 5 are inserted into two of the sockets 3. A second clamping plate 6 is fixed to the bottom of the movable seat 4. The top of the prefabricated component 100 is clamped by the first clamping plate 2 and the second clamping plate 6 together, so that the equipment can be fixedly installed on the top of the prefabricated component 100.

[0015] A track 7 is fixed at one end of the suspension frame, the track 7 and the first clamping plate 2 are located on the same side, the track 7 is perpendicular to the suspension frame, and a staggered measuring trolley 8 is installed on the track 7; The staggered measuring trolley 8 includes a car body 9, which is mounted on a track 7. A travel drive system 10 is installed on the car body 9. Driven by the travel drive system 10, the car body 9 can move up and down on the track 7. A left box 11 is provided on the left side of the car body 9, and a right box 12 is provided on the right side of the car body 9. A through hole is opened in the car body 9 along the horizontal direction, and a hinge shaft 13 is rotatably installed in the through hole through a bearing. The two ends of the hinge shaft 13 extend into the left box 11 and the right box 12 respectively, and the left box 11 and the right box 12 are respectively provided with left arms. The rod 14 and the right arm 15, the left arm 14 and the right arm 15 are all inclinedly arranged, the upper ends of the left arm 14 and the right arm 15 are fixed on the hinge shaft 13, and a notch 16 is also provided on the side of the left box 11 and the right box 12, and the notch 16 on the side of the left box 11 and the right box 12 provides space for the movement of the left arm 14 and the right arm 15, and a wheel shaft 17 is rotatably installed between the lower ends of the left arm 14 and the right arm 15, and a running wheel 18 is installed on the wheel shaft 17, and the running wheel 18 contacts the outer wall surface of the prefabricated component 100; A torque control mechanism is also provided in the left box 11, which provides torque to the hinge shaft 13, so that the hinge shaft 13 has a rotation tendency, and the left arm 14 and the right arm 15 obtain swing potential energy, and finally pressure is generated between the walking wheel 18 and the outer wall surface of the prefabricated component 100; The right side of the right cassette 12 is also provided with a misalignment measuring device 19, which includes a measuring box 20, on which a first short shaft 21 and a second short shaft 22 (such as Figure 4 and Figure 5 As shown), a small gear 23 and a cam 24 are provided on the first short shaft 21, the end of the hinge shaft 13 extends into the measuring box 20, and a large gear 25 is installed on the end of the hinge shaft 13, and the large gear 25 is meshed with the small gear 23; The cam 24 is a symmetrical structure. A sliding groove 26 is further provided on the right inner wall of the measuring box 20. A sliding column 27 is provided in the sliding groove 26. The sliding column 27 can slide in the sliding groove 26. A first ball bearing 28 is installed at the end of the sliding column 27. A linkage member 29 is installed on the second short shaft 22. The linkage member 29 has a "7"-shaped structure. The linkage member 29 is composed of two swing arms 30. The first ball bearing 28 is located between the cam 24 and one of the swing arms 30 of the linkage member 29, and the first ball bearings 28 are in contact with the outer edge of the cam 24 and the swing arm 30. An energy storage tube 31 is also installed on the inner wall of the right side of the measuring box 20. The energy storage tube 31 is installed in the vertical direction. A push block 32 is arranged in the energy storage tube 31. The push block 32 can move up and down in the energy storage tube 31. A threaded hole is opened in the center of the push block 32. A vertical rod 33 is threadedly installed in the threaded hole of the push block 32. A second ball bearing 34 is installed at the lower end of the vertical rod 33. The second ball bearing 34 contacts another swing arm 30 of the linkage member 29. A return spring 35 is arranged in the energy storage tube 31, and the end of the return spring 35 contacts the push block 32. A long slit hole 36 is correspondingly provided at the connection between the right side wall of the measuring box 20 and the energy storage tube 31, and a pointer assembly is installed in the long slit hole 36; Figure 7 As shown, the pointer assembly includes a column 37 and a pointer 38. The column 37 is inserted into the long slit hole 36. The end of the column 37 located in the measuring box 20 is the inner end, and the end of the column 37 located outside the measuring box 20 is the outer end. The pointer 38 is fixed to the outer end of the column 37. A steel sleeve 39 is fixed to the inner end of the column 37. The axis of the steel sleeve 39 coincides with the axis of the vertical rod 33. The inner end of the column 37 is also provided with a first compression spring 40 and a gasket 41. The gasket 41 can move on the column 37. The first compression spring 40 is located between the gasket 41 and the steel sleeve 39. A length scale line 42 is provided on the right outer wall of the measuring box 20, and the pointer 38 points to the length scale line 42.

[0016] The steps of using a construction measurement device of this embodiment to perform misalignment measurement are as follows: (1) First, the track 7 is placed on the outer wall of the prefabricated component 100, and the running wheel 18 is in contact with the outer wall of the prefabricated component 100. Then, two long bolts 5 are used to fix the position of the movable seat 4 to complete the installation of the suspension frame; It should be noted that the torque control mechanism always provides torque to the hinge shaft 13, so that the hinge shaft 13 has a tendency to rotate, and the left arm 14 and the right arm 15 obtain swing potential energy, pressing the walking wheel 18 on the outer wall surface of the prefabricated component 100 to maintain a contact state; (2) Then the travel drive system 10 drives the vehicle body 9 to move downward on the track 7, and the travel wheel 18 rolls on the outer wall surface of the prefabricated component 100. If the misalignment 101 is encountered, the travel wheel 18 presses over the misalignment 101. Since the misalignment 101 is a horizontal displacement, the travel wheel 18 is bound to shift, causing the left arm 14 and the right arm 15 to swing to a certain angle, and the hinge shaft 13 rotates; (3) The hinge shaft 13 is linked to the misalignment measuring device 19, so that the misalignment measuring device 19 can measure the displacement of the misalignment. Specifically, the end of the hinge shaft 13 drives the first short shaft 21 to rotate through the meshing of the large gear 25 and the small gear 23. Since the misalignment distance of the misalignment is generally not too large, the swing amplitude of the left arm 14 is limited, so the rotation angle of the hinge shaft 13 is small. In order to enlarge the rotation angle so that the misalignment distance can be indirectly measured, the meshing of the large gear 25 and the small gear 23 is set in this embodiment. The large gear 25 and the small gear 23 have a certain transmission ratio. Finally, the small gear 23 links the first short shaft 21 to rotate a larger angle, and the cam 24 rotates with the first short shaft 21. Due to the rotation of the cam 24 Special structure, the rotation of cam 24 will push the first ball bearing 28, so that the first ball bearing 28 slides along the sliding groove 26, the first ball bearing 28 pushes one of the swing arms 30 of the linkage 29, the linkage 29 rotates, the other swing arm 30 of the linkage 29 pushes the second ball bearing 34 upward, the vertical rod 33 pushes the push block 32, the reset spring 35 is compressed, the push block 32 moves upward and pushes the steel sleeve 39, the steel sleeve 39 drives the column 37 to move upward in the long slit hole 36, the pointer 38 at the outer end of the column 37 moves upward, the pointer 38 points to a certain scale of the length scale line 42, the length scale line 42 has a definite relationship with the misalignment distance, and the misalignment distance can be indirectly known.

[0017] The relationship between the length scale line 42 and the misalignment distance is as follows: the physical displacement (i.e., the displacement of the running wheel 18 due to the misalignment) is converted into a numerical value that can be directly read on the scale line. When the running wheel 18 encounters the misalignment on the wall, it will move and cause the left arm 14 and the right arm 15 to swing, thereby causing the hinge shaft 13 to rotate. The rotation of the hinge shaft 13 is transmitted to the components inside the misalignment measuring device 19 through the gear system, and finally the push block 32 moves up and down in the energy storage tube 31, and pushes the pointer 38 to move along the scale line. Because the movement relationship between the various components in the whole process is pre-designed, the scale finally pointed to by the pointer 38 can directly correspond to the actual misalignment distance.

[0018] It should be noted that in order to ensure the accuracy of this corresponding relationship, the device needs to be calibrated before actual use to ensure that its measurement accuracy meets engineering requirements.

[0019] (4) Then the travel drive system 10 controls the vehicle body 9 to return, the vehicle body 9 moves upward, the travel wheel 18 rolls over the offset platform, the left arm 14 and the right arm 15 swing to the initial state, the cam 24, the linkage 29, and the first ball bearing 28 are reset, and the second ball bearing 34 is reset under the action of the reset spring 35. Under the elastic force of the first compression spring 40, the column 37 is clamped in the long slit hole 36 by the gasket 41 and the pointer 38. Therefore, when the push block 32 moves downward to reset, the column 37 does not move, and the pointer 38 always points to the measured scale.

[0020] It should be noted that the track 7 and the first clamping plate 2 are located on the same side of the cross arm 1, and the track 7 and the first clamping plate 2 are fixed to each other, so the distance between the track 7 and the outer wall of the prefabricated component 100 is constant. In the initial state, the walking wheel 18 is in contact with the outer wall, and the inclination angles of the left arm 14 and the right arm 15 are constant. At this time, the first ball bearing 28 is located at one end of the slide groove, and the first ball bearing 28 is in contact with the midpoint of the cam 24. The pointer 38 points to the zero scale line of the length scale line 42, and the reset spring 35 is in a zero elastic potential energy state at this time; the diameter of the walking wheel 18 of the present invention is larger than the offset distance of the misalignment (generally not more than 10 cm) to ensure that the walking wheel 18 can roll over the misalignment.

[0021] in addition, Figure 1 As shown, the outer wall surface of the upper prefabricated component 100 is in an inwardly displaced state. If the outer wall surface of the upper prefabricated component 100 protrudes from the outer wall surface of the lower part (i.e., it is outwardly displaced), the misalignment measuring device of this embodiment can also be used for measurement, wherein the rotation of the hinge shaft 13 is opposite, and since the cam 24 is a symmetrical structure, the cam 24 rotating in the opposite direction can also push the first ball bearing 28, and finally measure the misalignment distance.

[0022] Specific embodiment 2 of a construction measurement device provided by the present invention: This embodiment further provides a travel drive system 10. Specifically, a square channel 43 is provided on the vehicle body 9. The square channel 43 is for the track 7 to pass through. The vehicle body 9 is mounted on the track 7 through the square channel 43. A long rack 44 is installed on the side of the track 7. like Figure 8 As shown, the travel drive system 10 includes a square box body 45 and a controller. The square box body 45 is installed on the side of the vehicle body 9. A travel motor 46 and a first shaft body 47 are installed in the square box body 45. The first shaft body 47 is rotatably installed in the square box body 45 through a bearing. A driving gear 48 and a driven bevel gear 49 are installed on the first shaft body 47. A driving bevel gear 50 is installed on the main shaft of the travel motor 46. The driving bevel gear 50 is meshed with the driven bevel gear 49. A through hole 51 is correspondingly opened at the connection between the square box body 45 and the vehicle body 9. The driving gear 48 is meshed with the long rack 44. The through hole 51 provides space for the driving gear 48. A travel switch 52 is installed at the upper end of the track 7, an encoder 53 is installed on the wheel axle 17, and a controller is connected to the travel switch 52, the encoder 53 and the travel motor 46 respectively.

[0023] The controller controls the travel motor 46 to start, and the travel motor 46 drives the meshing transmission of the active bevel gear 50 and the driven bevel gear 49, and the driving gear 48 coaxially arranged with the driven bevel gear 49 starts to rotate, and the driving gear 48 rolls downward on the long rack 44, the vehicle body 9 is driven to move downward, and the travel wheel 18 rolls on the outer wall. The maximum distance traveled by the trolley can be calculated by the encoder 53 on the wheel axle 17. Once the preset maximum distance is reached, the controller commands the travel motor 46 to change the rotation direction, and the trolley changes direction and returns upward to reset. When the trolley touches the travel switch 52, the controller turns off the travel motor 46 and the trolley stops moving.

[0024] Specific embodiment 3 of a construction measurement device provided by the present invention: This embodiment also provides a torque control mechanism, such as Fig. 9 As shown, the torque control mechanism includes a short rack 54 and a square plate 55. The short rack 54 is mounted on the inner wall of the left box 11 through two bolts 56. A long hole 57 is provided on the short rack 54. The two bolts 56 are inserted into the long hole 57. The short rack 54 can move along a straight line on the two bolts 56. The bolts 56 slide relative to the long hole 57. A semicircular gear 58 is provided at the upper end of the left arm 14, and the semicircular gear 58 is meshed with the short rack 54. A guide rod 59 is fixed to the end of the short rack 54. The square plate 55 is welded to the inner wall of the left box 11. A through hole is opened on the square plate 55. The guide rod 59 passes through the through hole on the square plate 55. A limit head 60 is provided at the end of the guide rod 59. The limit head 60 prevents the end of the guide rod 59 from escaping from the through hole of the square plate 55. A second compression spring 61 is also mounted on the guide rod 59, and both ends of the second compression spring 61 abut against the short rack 54 and the square plate 55.

[0025] Under the elastic force of the second compression spring 61, the short rack 54 is always in a stressed state, and the short rack 54 is meshed with the semicircular gear 58, so that the semicircular gear 58 has rotational potential energy. The semicircular gear 58 is arranged at the end of the left arm 14, so the left arm 14 has torque, ensuring that the walking wheel 18 is always in contact with the outer wall.

[0026] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction measurement device, characterized in that: It includes a suspension frame, which is used to be fixedly installed on the top of the prefabricated component, one end of the suspension frame is fixed with a track, the track is perpendicular to the suspension frame, and a staggered measuring trolley is installed on the track; The staggered measuring trolley comprises a vehicle body, which is mounted on a track, and a travel driving system is mounted on the vehicle body. Under the drive of the travel driving system, the vehicle body can move up and down on the track. A left box is arranged on the left side of the vehicle body, and a right box is arranged on the right side of the vehicle body. A through hole is opened in the vehicle body in a horizontal direction, and a hinge shaft is rotatably installed in the through hole through a bearing, and two ends of the hinge shaft respectively extend into the left box and the right box, and a left arm rod and a right arm rod are respectively arranged in the left box and the right box, and the left arm rod and the right arm rod are both inclinedly arranged, and the upper ends of the left arm rod and the right arm rod are fixed on the hinge shaft, and a notch is also opened in the side of the left box and the right box, and the notch in the side of the left box and the right box provides space for the movement of the left arm rod and the right arm rod, and a wheel axle is rotatably installed between the lower ends of the left arm rod and the right arm rod, and a travel wheel is installed on the wheel axle, and the travel wheel contacts the outer wall surface of the prefabricated component; A torque control mechanism is also provided in the left box, which provides torque to the hinge shaft, so that the hinge shaft has a rotation tendency, and the left arm and the right arm obtain swing potential energy, and finally a contact pressure is generated between the walking wheel and the outer wall surface of the prefabricated component; A misalignment measuring device is also installed on the right side of the right cassette, and the misalignment measuring device is used to measure the misalignment displacement.

2. A construction measurement device according to claim 1, characterized in that: The misalignment measuring device comprises a measuring box, on the right inner wall of the measuring box, a first short shaft and a second short shaft are rotatably mounted, a small gear and a cam are arranged on the first short shaft, the end of the hinge shaft extends into the measuring box, a large gear is mounted on the end of the hinge shaft, and the large gear meshes with the small gear; The cam is a symmetrical structure. A sliding groove is also arranged on the right inner wall of the measuring box. A sliding column is arranged in the sliding groove. The sliding column can slide in the sliding groove. A first ball bearing is installed at the end of the sliding column. A linkage member is installed on the second short shaft. The linkage member has a "7"-shaped structure. The linkage member is composed of two swing arms. The first ball bearing is located between the cam and one of the swing arms of the linkage member, and the first ball bearings are in contact with the outer edge of the cam and the swing arm. An energy storage tube is also installed on the inner wall of the right side of the measuring box. The energy storage tube is installed in the vertical direction. A push block is arranged in the energy storage tube. The push block can move up and down in the energy storage tube. A threaded hole is opened in the center of the push block. A vertical rod is threadedly installed in the threaded hole of the push block. A second ball bearing is installed at the lower end of the vertical rod. The second ball bearing contacts with another swing arm of the linkage. A return spring is arranged in the energy storage tube, and the end of the return spring contacts the push block. A long slit hole is correspondingly opened at the connection between the right side box wall of the measuring box and the energy storage tube, and a pointer assembly is installed in the long slit hole; the pointer assembly includes a column and a pointer, the column is inserted in the long slit hole, the end of the column located in the measuring box is the inner end, and the end of the column located outside the measuring box is the outer end, the pointer is fixed to the outer end of the column, and a steel sleeve is fixed to the inner end of the column, the axis of the steel sleeve coincides with the axis of the vertical rod, and the inner end of the column is also covered with a first compression spring and a gasket, and the first compression spring is located between the gasket and the steel sleeve; a length scale line is set on the right side outer wall of the measuring box, and the pointer points to the length scale line.

3. A construction measurement device according to claim 2, characterized in that: A square channel is provided on the vehicle body, and the track passes through the square channel. The vehicle body is mounted on the track through the square channel, and a long rack is installed on the side of the track. The travel drive system includes a square box body and a controller. The square box body is installed on the side of the vehicle body. A travel motor and a first shaft body are installed in the square box body. The first shaft body is rotatably installed in the square box body through a bearing. A driving gear and a driven bevel gear are installed on the first shaft body. A driving bevel gear is installed on the main shaft of the travel motor. The driving bevel gear is meshed with the driven bevel gear. A through opening is correspondingly opened at the connection between the square box body and the vehicle body. The driving gear is meshed with the long rack. The through opening provides space for the driving gear. A travel switch is installed at the upper end of the track, an encoder is installed on the wheel axle, and a controller is connected with the travel switch, the encoder and the travel motor respectively.

4. A construction measurement device according to claim 3, characterized in that: The torque control mechanism includes a short rack and a square plate. The short rack is installed on the inner wall of the left box through two bolts. A long hole body is provided on the short rack. The two bolts are passed through the long hole body. The short rack can move along a straight line on the two bolts. The bolts slide relative to the long hole body. A semicircular gear is provided at the upper end of the left arm rod, which is meshed with a short rack. A guide rod is fixed to the end of the short rack. A square plate is welded to the inner wall of the left box. A through hole is opened on the square plate. The guide rod passes through the through hole on the square plate. A limiting head is provided at the end of the guide rod. A second compression spring is also mounted on the guide rod, and both ends of the second compression spring are in contact with the short rack and the square plate.

5. A construction measurement device according to claim 4, characterized in that: The suspension frame includes a cross arm, a first clamping plate is fixed at one end of the cross arm, and a row of sockets are provided at the other end of the cross arm. A movable seat is mounted on the end of the cross arm, and the movable seat can be moved on the cross arm. The movable seat can be fixed to the end of the cross arm by two long bolts, and the two long bolts are passed through two of the sockets. A second clamping plate is fixed to the bottom of the movable seat.

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