Simple paying-off measuring device for building construction

Abstract

The invention belongs to the technical field of paying-off measuring equipment, and particularly relates to a simple paying-off measuring device for building construction, which comprises a positioning insertion rod, the top end rod wall of the positioning insertion rod is fixedly sleeved with a connecting bearing, and the outer wall of the connecting bearing is fixedly connected with a connecting rope and a positioning standard plate. The simple paying-off measuring device for building construction not only has various automatic measuring and paying-off modes such as a linear mode and an arc-shaped mode, but also can synchronously achieve the automatic paying-off function in the measuring process, manual data reading is not needed in the whole process, the measuring and paying-off process is simplified, the measuring error is further reduced, the construction paying-off precision is improved, and the working efficiency is improved. And meanwhile, the convenience and efficiency of paying-off measurement in a building construction area are effectively improved, the labor intensity of constructors is greatly reduced, the device further has the functions of adaptive adjustment and real-time posture monitoring and early warning for ground unevenness in the surveying and paying-off process, and the surveying and paying-off accuracy and construction reliability of the device are further improved.

Description

Technical Field

[0001] This invention belongs to the technical field of setting out and measuring equipment, and in particular relates to a simple setting out and measuring device for building construction. Background Technology

[0002] Construction layout surveying is a core technical step that accurately converts the geometric parameters such as building plan and elevation from design drawings into operable markers on the construction site. It is a crucial link between design and construction. For example, during the foundation excavation stage, the excavation range needs to be determined by surveying, and then the various stake points are connected by survey lines. Quicklime is sprinkled along the lines to mark the boundaries, providing clear guidance for construction. Patent CN216246346U discloses a simple layout surveying device for construction in this category.

[0003] However, existing simple wire laying and measuring devices have obvious shortcomings in practical use: First, the operation process is cumbersome, mostly relying on tape measure measurement. It is necessary to measure first, then mark the points, and finally complete the layout by sprinkling lime powder at the mark points. Especially when there is an arc structure between two mark points, the construction personnel need to make a lot of repeated measurements between the two points and add dense mark points to ensure the layout accuracy of the arc structure, which further increases the complexity of the operation. Secondly, the excessive number of operational steps increases the risk of cumulative errors. For example, the scale deviation of the tape measure itself, the stretching error caused by uneven force when manually pulling the tape measure, and the error of multiple point conversions in arc measurement will all gradually accumulate. These errors will not only cause deviations between the layout position and the design drawings, such as the deviation of the excavation range of the foundation pit and the misalignment of the wall axis, but also require additional time to correct the errors, which seriously affects the accuracy of the layout measurement of the building construction and slows down the overall construction progress.

[0004] To address this issue, we propose a simple layout and measurement device for building construction. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a simple line-laying and measuring device for building construction.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a simple line-laying and measuring device for building construction, comprising a positioning rod, a connecting bearing fixedly sleeved on the top wall of the positioning rod, a connecting rope and a positioning plate fixedly connected to the outer wall of the connecting bearing, a smooth sleeve movably sleeved on one end of the connecting rope, and a correction mechanism fixedly connected to the outer wall of the smooth sleeve. The inner wall of the correction mechanism is slidably connected to an L-shaped control handle, and a rotary bearing is fixedly sleeved on the bottom outer wall of the L-shaped control handle. A wire feeding spool is fixedly embedded on the outer wall of the outer ring of the rotary bearing, and an auxiliary mechanism is fixedly connected to the bottom end of the wire feeding spool. The side wall of the wire feeding drum has an opening, and the hole wall of the opening is slidably connected to a gate mechanism. A control mechanism is fixedly connected to the outer wall of the L-shaped control handle.

[0007] In the aforementioned simple line-laying and measuring device for building construction, the correction mechanism includes a movable cylinder that is slidably sleeved with the wall of an L-shaped control handle. The outer wall of the smooth sleeve is fixedly connected to the outer wall of the movable cylinder. Two retaining rings are fixedly sleeved on the outer wall of the L-shaped control handle. Correction springs are movably sleeved on the outer wall of the L-shaped control handle. The opposite sides of the two correction springs are fixedly connected to the outer wall of the movable cylinder. The sides of the two correction springs away from the movable cylinder are respectively fixedly connected to the outer walls of the two retaining rings. A winding and unwinding mechanism for winding the connecting rope is fixedly connected to the outer wall of the movable cylinder.

[0008] In the aforementioned simple line-laying and measuring device for building construction, the winding and unwinding mechanism includes a U-shaped frame fixedly connected to the outer wall of a movable cylinder. Through holes are provided at both ends of the U-shaped frame, and winding and unwinding wheels are connected to the walls of the two through holes via rolling bearings. The side of the connecting rope away from the connecting bearing is fixedly connected to the surface of the winding and unwinding wheels. A limiting screw hole is provided on the outer wall of the U-shaped frame, and a positioning bolt is threaded into the wall of the limiting screw hole. A connecting block is fixedly connected to the lower surface of the U-shaped frame, and a laser rangefinder sensor that mates with a positioning marker is fixedly connected to the inner wall of the connecting block.

[0009] In the aforementioned simple line-laying and measuring device for construction, the auxiliary mechanism includes two sealed bearings fixedly embedded at the bottom of the line-laying drum. A rotating rod is fixedly connected to the inner wall of the sealed bearing. Multiple rubber strips are fixedly connected to the side of the rotating rod near the line-laying drum. A striking ball is fixedly connected to the outer end of the rubber strip. A circular wheel plate is fixedly connected to the outer end of each of the two rotating rods.

[0010] In the aforementioned simple line-laying and measuring device for building construction, the gate mechanism includes an L-shaped gate that is slidably and sealingly connected to the inner wall of the opening at the line-laying drum. The vertical part of the L-shaped gate has a threaded hole, and the wall of the threaded hole is threaded with an adjusting bolt. A damping bearing is fixedly sleeved on the side wall of the adjusting bolt, and the outer wall of the damping bearing is fixedly embedded and connected to the outer wall of the line-laying drum.

[0011] In the aforementioned simple line-laying and measuring device for building construction, the upper surface of the line-laying drum is provided with a material filling hole, and the interior of the line-laying drum is filled with a layer of lime powder.

[0012] In the aforementioned simple line-laying and measuring device for building construction, the control mechanism includes a touch screen display panel, a battery, a fixing box, and an insulating box, all fixedly connected to the outer wall of an L-shaped control handle. A PLC controller is fixedly connected to the inner wall of the fixing box, and an alarm is fixedly embedded in the top of the fixing box. Two conductive rods are fixedly connected to the upper surface of the insulating box, and the interior of the insulating box is filled with a conductive ionic liquid layer. The bottom ends of the conductive rods extend into the interior of the conductive ionic liquid layer.

[0013] In the aforementioned simple line-laying and measuring device for building construction, a limiting ring is fixedly sleeved on the bottom wall of the positioning rod, and an anti-detachment block is fixedly connected to the top side of the L-shaped control handle.

[0014] Compared with existing technologies, the advantages of a simple layout and measurement device for building construction are: 1. Through the set winding and unwinding mechanism, laser rangefinder sensor, and gate mechanism, when the construction process requires line laying and measurement, the laser rangefinder sensor converts laser pulses into real-time distance, and the data is transmitted to the PLC controller. When the target is reached, the alarm will automatically sound, eliminating the need for manual data reading. Line laying and measurement are synchronized. The adjusting bolt drives the L-shaped gate to open the line laying drum outlet. The knocking ball of the auxiliary mechanism knocks on the drum body to generate high-frequency vibration, preventing lime powder from caking and clogging, ensuring smooth line laying. When laying in an arc, the positioning rod is inserted into the center of the arc mark, and the positioning bolt fixes the winding and unwinding wheel to maintain the length of the connecting rope (arc radius). Then, with the positioning rod as the center and the length of the connecting rope as the radius, the circular wheel is pushed to roll along the preset arc trajectory. During the rolling process, the lime powder inside the string drum is automatically sprinkled out with the cooperation of the auxiliary mechanism and the gate mechanism until the circular wheel plate rolls to the other end of the arc-shaped mark, completing the automatic laying out of the arc-shaped mark. This eliminates the need for multiple measuring points, reducing cumulative errors. This mechanism enables the simple construction line laying and measuring device to not only have multiple automatic measurement and laying methods such as straight lines and arcs, but also to realize automatic laying out functions simultaneously during the measurement process. The entire process is automatically processed by the PLC controller, eliminating the need for manual data reading. This simplifies the measurement and laying out process, further reduces measurement errors, improves the accuracy of construction line laying, and effectively improves the convenience and efficiency of line laying and measurement in the construction area, significantly reducing the labor intensity of construction workers.

[0015] 2. Through the set control mechanism, when the circular wheel plate is rolled by controlling the L-shaped control handle, the conductive ionic liquid layer inside the insulating box can ensure the circuit connection between the two conductive rods and continuously send electrical signals to the PLC controller. When the tilt angle of the L-shaped control handle exceeds the preset allowable range, it will cause the pay-off drum and the L-shaped control handle to tilt synchronously. This will not only cause the distance measurement path of the laser rangefinder and the positioning target plate to deviate, affecting the measurement accuracy, but also cause the pay-off drum to tilt and the lime powder to deviate from the preset edge line, affecting the pay-off accuracy. At the same time, it will cause one of the conductive rods to separate from the conductive ionic liquid layer, causing the circuit between the two conductive rods to be interrupted. At this time, the conductive rod cannot send a continuous electrical signal to the PLC controller. After the PLC controller detects the circuit interruption, it will immediately control the alarm to emit an intermittent "beep-beep-beep" alarm sound. After hearing the alarm sound, the construction personnel must immediately stop the rolling operation and adjust the attitude of the L-shaped control handle in time. This mechanism enables the device to have real-time attitude monitoring and early warning functions during the measurement and pay-off process, effectively avoiding errors caused by operational attitude deviations, and improving the accuracy of the device's measurement and pay-off and the reliability of construction.

[0016] 3. Through the set correction mechanism, when the circular wheel plate encounters a raised or recessed area on the ground during the operation of the device, the connecting rope will adaptively deflect according to the position change of the wheel plate. At this time, the tension on the connecting rope not only has a horizontal component but also a vertical pulling component. One end of the connecting rope is fixed to the circular wheel plate, and the other end is connected to the moving cylinder through a smooth sleeve. The smooth sleeve is fitted on the outside of the moving cylinder, and the moving cylinder can slide up and down along the vertical rod of the L-shaped control handle to achieve correction. This mechanism enables the device to have the ability to adaptively adjust to uneven ground, effectively reducing the interference of the tilt of the connecting rope on the distance measurement accuracy and the line laying position, and further improving the accuracy of the device's measurement and line laying and the reliability of construction. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a simple line-laying and measuring device for building construction provided by the present invention; Figure 2 yes Figure 1 A partially enlarged structural diagram; Figure 3 This is a schematic diagram of the winding and unwinding mechanism in a simple line-laying and measuring device for building construction provided by the present invention; Figure 4 This is a schematic diagram of the auxiliary mechanism in a simple line-laying and measuring device for building construction provided by the present invention; Figure 5 This is a schematic diagram of the gate mechanism in a simple line-laying and measuring device for building construction provided by the present invention; Figure 6This is a cross-sectional structural diagram of the fixing box portion in a simple line-laying and measuring device for building construction provided by the present invention; Figure 7 This is a cross-sectional structural diagram of the insulating box portion in a simple line-laying and measuring device for building construction provided by the present invention.

[0018] In the diagram: 1. Positioning rod, 2. Connecting bearing, 3. Connecting rope, 4. Correction mechanism, 41. Moving drum, 42. Retaining ring, 43. Correction spring, 5. Winding mechanism, 51. U-shaped frame, 52. Winding wheel, 53. Positioning bolt, 54. Connecting block, 55. Laser rangefinder sensor, 6. Auxiliary mechanism, 61. Sealed bearing, 62. Rotating rod, 63. Rubber strip, 64. Striking ball, 65. Circular wheel plate, 7. Gate mechanism, 71. L-shaped gate, 72. Adjusting bolt, 73. Damping bearing, 8. Control mechanism, 81. Touch screen display panel, 82. Battery, 83. Fixing box, 84. Insulation box, 85. PLC controller, 86. Alarm, 87. Conductive rod, 88. Conductive ion liquid layer, 9. Limiting ring, 10. Positioning plate, 11. Smooth sleeve, 12. L-shaped control handle, 13. Rotary bearing, 14. Wire feeding drum, 15. Feeding hole, 16. Lime powder layer, 17. Anti-detachment block. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1-7As shown, a simple line-laying and measuring device for building construction includes a positioning rod 1. A connecting bearing 2 is fixedly sleeved on the top wall of the positioning rod 1. A connecting rope 3 and a positioning marker plate 10 are fixedly connected to the outer wall of the connecting bearing 2. A smooth sleeve 11 is movably sleeved on one end of the connecting rope 3. A correction mechanism 4 is fixedly connected to the outer wall of the smooth sleeve 11. The correction mechanism 4 includes a movable cylinder 41 that is slidably sleeved on the wall of an L-shaped control handle 12. The outer wall of the smooth sleeve 11 is fixedly connected to the outer wall of the movable cylinder 41. Two retaining rings 42 are fixedly sleeved on the outer wall of the L-shaped control handle 12. Correction springs 43 are movably sleeved on the outer wall of the L-shaped control handle 12. The opposite sides of the two correction springs 43 are fixedly connected to the outer wall of the movable cylinder 41. The sides of the two correction springs 43 away from the movable cylinder 41 are respectively fixedly connected to the outer walls of the two retaining rings 42. A winding and unwinding mechanism 5 for winding the connecting rope 3 is fixedly connected to the outer wall of the movable cylinder 41. The winding mechanism 5 includes a U-shaped frame 51 fixedly connected to the outer wall of the movable cylinder 41. Both ends of the U-shaped frame 51 are provided with through holes, and the walls of the two through holes are connected to winding wheels 52 through rolling bearings. The side of the connecting rope 3 away from the connecting bearing 2 is fixedly connected to the surface of the winding wheel 52. The outer wall of the U-shaped frame 51 is provided with a limit screw hole, and the wall of the limit screw hole is threaded with a positioning bolt 53. The lower surface of the U-shaped frame 51 is fixedly connected with a connecting block 54, and the inner wall of the connecting block 54 is fixedly connected with a laser range sensor 55 that cooperates with the positioning plate 10.

[0021] The inner wall of the correction mechanism 4 is slidably connected to an L-shaped control handle 12. A rotary bearing 13 is fixedly sleeved on the outer wall of the bottom end of the L-shaped control handle 12. A wire feeding drum 14 is fixedly embedded on the outer wall of the outer ring of the rotary bearing 13. A feeding hole 15 is opened on the upper surface of the wire feeding drum 14. The inside of the wire feeding drum 14 is filled with a layer of lime powder 16. An auxiliary mechanism 6 is fixedly connected to the bottom end of the wire feeding drum 14. The auxiliary mechanism 6 includes two sealed bearings 61 fixedly embedded at the bottom end of the wire feeding drum 14. A rotating rod 62 is fixedly connected to the inner wall of the sealed bearing 61. Multiple rubber strips 63 are fixedly connected to the side of the rotating rod 62 near the wire feeding drum 14. A striking ball 64 is fixedly connected to the outer end of the rubber strip 63. A circular wheel plate 65 is fixedly connected to the outer end of both rotating rods 62. The correction mechanism 4 is suitable for slightly uneven ground (protrusion / depression height ≤ 10 cm). If the ground has large undulations, pretreatment is required first.

[0022] The side wall of the wire feeding drum 14 has an opening, and the wall of the opening is slidably connected to a gate mechanism 7. The gate mechanism 7 includes an L-shaped gate 71 that is slidably connected to the inner wall of the opening located at the wire feeding drum 14. The vertical part of the L-shaped gate 71 has a threaded hole, and the wall of the threaded hole is threadedly connected to an adjusting bolt 72. The side wall of the adjusting bolt 72 is fixedly sleeved with a damping bearing 73. The outer wall of the damping bearing 73 is fixedly embedded in the outer wall of the wire feeding drum 14. The outward movement distance of the L-shaped gate 71 is proportional to the amount of lime powder discharged by the wire feeding drum 14.

[0023] A control mechanism 8 is fixedly connected to the outer wall of the L-shaped control handle 12. The control mechanism 8 includes a touch screen display panel 81, a battery 82, a fixing box 83, and an insulating box 84, all fixedly connected to the outer wall of the L-shaped control handle 12. A PLC controller 85 is fixedly connected to the inner wall of the fixing box 83. An alarm 86 is fixedly embedded at the top of the fixing box 83. Two conductive rods 87 are fixedly connected to the upper surface of the insulating box 84. The interior of the insulating box 84 is filled with a conductive ion liquid layer 88. The bottom end of the conductive rod 87 extends into the interior of the conductive ion liquid layer 88. A limit ring 9 is fixedly sleeved on the bottom wall of the positioning rod 1. An anti-detachment block 17 is fixedly connected to the top side of the L-shaped control handle 12.

[0024] The laser rangefinder 55, the touch screen display panel 81, and the two conductive rods 87 are all electrically connected to the input terminal of the PLC controller 85 via wires. The alarm 86 is electrically connected to the output terminal of the PLC controller 85 via wires. The battery 82 provides stable power to the above-mentioned power-conducting components. The above-mentioned power-conducting components and electrical connections are existing technologies and will not be described in detail here.

[0025] The operating principle of the present invention is described as follows: When the construction process requires setting out and measuring, the design length of the edge line of the construction area must first be determined according to the construction drawings, and the length is input into the touch screen display panel 81. The length is stored as a preset threshold in the PLC controller 85. At the same time, lime powder is added into the line-laying drum 14 through the material filling hole 15 to ensure that the lime powder forms a lime powder layer 16 in the line-laying drum 14 with a thickness that meets the requirements of a single line laying. Next, the construction workers need to ensure that the ground in the construction area has been leveled before inserting the positioning rod 1 into the starting position of the edge line of the construction area. At this time, the limiting ring 9 will be in close contact with the ground. Through the limiting effect of the limiting ring 9, the positioning rod 1 is ensured to be inserted to the required depth (usually not less than 30 cm, depending on the soil hardness), so that the positioning rod 1 is stable and does not shake. The construction workers then placed the circular wheel plate 65 against the ground and supported the L-shaped control handle 12 to keep it vertical. Then, through the cooperation of the L-shaped control handle 12, the wire reel 14 and the auxiliary mechanism 6, the circular wheel plate 65 was made to roll in a straight line along the ground. Before the circular wheel plate 65 rolls, the construction personnel need to rotate the positioning bolt 53 of the winding mechanism 5 to ensure that the side end of the positioning bolt 53 is completely away from the winding wheel 52, so that the winding wheel 52 is not squeezed and can rotate freely. When the circular wheel plate 65 rolls on the ground, the winding wheel 52 will rotate synchronously under the pulling force of the connecting rope 3 and release the connecting rope 3 wound on the wheel. Under the pulling force of the connecting rope 3, the positioning target plate 10 always remains aligned with the measuring end of the laser range sensor 55. At this time, the laser range sensor 55 sends a ranging laser pulse to the positioning target plate 10. After the laser pulse is reflected by the positioning target plate 10, it is captured by the sensor receiver. The laser range sensor 55 calculates the time difference between the laser pulse emission and reception, combined with the speed of light. The value is automatically converted to calculate the real-time distance between the two, realizing dynamic distance measurement; The laser rangefinder 55 will transmit the detected real-time distance to the PLC controller 85 in the form of an electrical signal. When the distance is equal to the preset construction area edge length threshold in the PLC controller 85, the PLC controller 85 will immediately control the alarm 86 to emit a continuous "beep beep beep" alarm sound to remind the construction personnel that the current edge length measurement has been completed. After the construction workers rotate the positioning bolt 53, they need to rotate the adjusting bolt 72 immediately. The adjusting bolt 72 drives the L-shaped gate 71 to move outward through the thread transmission. After the L-shaped gate 71 moves outward, it will open the outlet channel at the bottom of the feed drum 14. The lime powder in the feed drum 14 will fall evenly to the ground through the bottom outlet under its own gravity. Furthermore, during the process of controlling the circular wheel plate 65 to roll through the L-shaped control handle 12, the wire-laying drum 14, and the auxiliary mechanism 6, the circular wheel plate 65 will drive the rotating rod 62 to rotate synchronously within the sealed bearing 61. The rotating rod 62 will drive multiple striking balls 64 to make circular motion through the rubber strip 63. The multiple striking balls 64 will frequently strike the bottom of the wire-laying drum 14, causing the drum body of the wire-laying drum 14 to generate high-frequency vibration. This high-frequency vibration can effectively prevent lime powder from accumulating on the inner wall of the wire-laying drum 14 and blocking the outlet, and assist the lime powder to be discharged smoothly. Thus, the measurement of the edge length of the construction area and the wire-laying operation can be carried out simultaneously. The edge line marked by lime powder can provide a clear reference for construction personnel to accurately excavate the ground according to the dimensions of the construction drawings. When it is necessary to place curved markings on the ground in the construction area, firstly, the coordinates of the center of the curved markings in the construction area should be accurately determined on the construction drawings, and then the positioning rod 1 should be vertically inserted into the center at the corresponding position on the construction site to ensure that the positioning rod 1 is completely coincident with the center of the curved markings. Then, following the measurement method for the upper straight line, measure the distance between the two endpoints of the arc-shaped marking and the center of the circle (i.e., the arc radius) to complete the basic measurement of the arc-shaped marking; Using one of the endpoints as the starting point for feeding the line, move the circular wheel plate 65 to that starting point to ensure that the bottom of the feeding drum 14 is completely aligned with the endpoint position; Next, the construction workers rotate the positioning bolt 53, causing the positioning bolt 53 to press against the winding wheel 52. By pressing and fixing, the rotation of the winding wheel 52 is restricted, ensuring that the length of the connecting rope 3 is kept fixed (i.e., equal to the measured arc radius). Then, with the positioning rod 1 as the center and the length of the connecting rope 3 as the radius, the circular wheel plate 65 is pushed to roll along the preset arc trajectory. During the rolling process, the lime powder in the line-laying drum 14 is automatically sprinkled out under the cooperation of the auxiliary mechanism 6 (vibrating the striking ball 64) and the gate mechanism 7 (opening the L-shaped gate 71) until the circular wheel plate 65 rolls to the other end of the arc mark, completing the automatic laying of the arc mark. Compared with the traditional method of arc laying which requires multiple measurements of the marks, this operation does not require multiple measurements of the marks, which not only greatly improves the laying measurement speed, but also effectively reduces the cumulative error caused by multiple measurements. This device enables the construction site layout and measurement device to not only have multiple automatic measurement and layout modes such as straight lines and arcs, but also to realize automatic layout function simultaneously during the measurement process. The entire process is automatically processed by the PLC controller 85, without the need for manual data reading. This simplifies the measurement and layout process, further reduces measurement errors, improves the accuracy of construction layout, and effectively improves the convenience and efficiency of layout and measurement in the construction area, significantly reducing the labor intensity of construction workers.

[0026] When the circular wheel plate 65 is rolled by controlling the L-shaped control handle 12, the conductive ionic liquid layer 88 inside the insulating box 84 ensures the circuit connection between the two conductive rods 87 and continuously sends electrical signals to the PLC controller 85. When the tilt angle of the L-shaped control handle 12 exceeds the preset allowable range (usually ±3°, which can be adjusted according to the construction accuracy requirements), it will cause the pay-off drum 14 and the L-shaped control handle 12 to tilt synchronously. This will not only cause the distance measurement path of the laser range sensor 55 and the positioning target plate 10 to deviate, affecting the measurement accuracy, but also cause the pay-off drum 14 to tilt and the lime powder landing point to deviate from the preset edge line, affecting the pay-off accuracy. At the same time, the conductive ionic liquid layer 88 will shift to one side with the tilt of the handle, causing one of the conductive rods 87 to separate from the conductive ionic liquid layer 88, thus causing the two conductive rods 87 to... When the circuit is interrupted, the conductive rod 87 cannot send a continuous electrical signal to the PLC controller 85. After detecting the circuit interruption, the PLC controller 85 will immediately control the alarm 86 to emit an intermittent "beep-beep-beep" alarm sound. After hearing the alarm sound, the construction personnel must immediately stop the rolling operation and adjust the posture of the L-shaped control handle 12 in time until the alarm sound stops, ensuring that the handle is restored to the vertical position. This not only restores the normal ranging path of the laser ranging sensor 55 and ensures the accuracy of the ranging result, but also ensures that the line-laying drum 14 is always vertically downward, so that the lime powder falls in the vertical direction, further improving the accuracy of line laying. This mechanism enables the device to have real-time posture monitoring and early warning functions during the measurement and laying process, effectively avoiding errors caused by deviations in operating posture, and improving the accuracy of the device's measurement and laying and the reliability of construction.

[0027] During the use of the device, when the circular wheel plate 65 encounters a raised area (such as soil or stones) or a recessed area on the ground while rolling, the connecting rope 3 will adaptively deflect according to the position of the wheel plate. At this time, the tension on the connecting rope 3 not only has a horizontal component but also a vertical pulling component. One end of the connecting rope 3 is fixed to the circular wheel plate 65, and the other end is connected to the moving cylinder 41 through a smooth sleeve 11. The smooth sleeve 11 is fitted on the outside of the moving cylinder 41, and the moving cylinder 41 can slide up and down along the vertical rod of the L-shaped control handle 12. The L-shaped control handle 12 is equipped with a correction spring 43 on both the upper and lower sides. The vertical pulling force is transmitted to the moving cylinder 41 through the smooth sleeve 11, pushing the moving cylinder 41 to slide up and down along the rod to achieve correction. If the circular wheel plate 65 is lifted by the soil, the connecting rope 3 will deflect upward. At this time, the pulling force pulls the moving cylinder 41 to slide downward, squeezing the bottom correction spring 43 and stretching the top correction spring 43 until the connecting rope 3 returns to a horizontal state. If the circular wheel plate 65 moves to the concave ground, the connecting rope 3 will deflect downward. The pulling force will then push the moving cylinder 41 to slide upward, stretching the bottom correction spring 43 and squeezing the top correction spring 43, thus keeping the connecting rope 3 horizontal. When the correction spring 43 is compressed or stretched, it will generate a restoring force pointing to the initial position. When the circular wheel plate 65 rolls to the horizontal ground, the moving cylinder 41 can automatically reset under the action of the spring force. This mechanism enables the device to have the ability to adapt to uneven ground, effectively reduce the interference of the tilt of the connecting rope 3 on the distance measurement accuracy and the laying position, and further improve the accuracy of the device's measurement and laying and the reliability of construction.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A simple line-laying and measuring device for building construction, comprising a positioning rod (1), characterized in that, The top wall of the positioning rod (1) is fixedly sleeved with a connecting bearing (2), and the outer wall of the connecting bearing (2) is fixedly connected with a connecting rope (3) and a positioning plate (10). One end of the connecting rope (3) is movably sleeved with a smooth sleeve (11), and the outer wall of the smooth sleeve (11) is fixedly connected with a correction mechanism (4). The inner wall of the correction mechanism (4) is slidably connected to an L-shaped control handle (12), and a rotary bearing (13) is fixedly sleeved on the bottom outer wall of the L-shaped control handle (12). A wire feeding drum (14) is fixedly embedded on the outer ring of the rotary bearing (13), and an auxiliary mechanism (6) is fixedly connected to the bottom end of the wire feeding drum (14). The side wall of the wire feeding drum (14) has an opening, and the hole wall of the opening is slidably connected to a gate mechanism (7). The outer wall of the L-shaped control handle (12) is fixedly connected to a control mechanism (8).

2. The simple setting-out and measuring device for building construction according to claim 1, characterized in that, The correction mechanism (4) includes a movable cylinder (41) that is slidably sleeved with the wall of the L-shaped control handle (12). The outer wall of the smooth sleeve (11) is fixedly connected to the outer wall of the movable cylinder (41). Two retaining rings (42) are fixedly sleeved on the outer wall of the L-shaped control handle (12). Correction springs (43) are movably sleeved on the outer wall of the L-shaped control handle (12). The opposite sides of the two correction springs (43) are fixedly connected to the outer wall of the movable cylinder (41). The sides of the two correction springs (43) away from the movable cylinder (41) are respectively fixedly connected to the outer walls of the two retaining rings (42). A winding and unwinding mechanism (5) for winding the connecting rope (3) is fixedly connected to the outer wall of the movable cylinder (41).

3. A simple line-laying and measuring device for building construction according to claim 2, characterized in that, The winding and unwinding mechanism (5) includes a U-shaped frame (51) fixedly connected to the outer wall of the moving cylinder (41). Both ends of the U-shaped frame (51) are provided with through holes, and the walls of the two through holes are connected to winding and unwinding wheels (52) through rolling bearings. The side of the connecting rope (3) away from the connecting bearing (2) is fixedly connected to the surface of the winding and unwinding wheel (52). The outer wall of the U-shaped frame (51) is provided with a limiting screw hole, and the wall of the limiting screw hole is threaded with a positioning bolt (53). The lower surface of the U-shaped frame (51) is fixedly connected with a connecting block (54), and the inner wall of the connecting block (54) is fixedly connected with a laser range sensor (55) that cooperates with the positioning plate (10).

4. The simple line-laying and measuring device for building construction according to claim 1, characterized in that, The auxiliary mechanism (6) includes two sealed bearings (61) fixedly embedded at the bottom of the wire feeding drum (14). A rotating rod (62) is fixedly connected to the inner wall of the sealed bearing (61). A plurality of rubber strips (63) are fixedly connected to the side of the rotating rod (62) near the wire feeding drum (14). A striking ball (64) is fixedly connected to the outer end of the rubber strip (63). A circular wheel plate (65) is fixedly connected to the outer end of both rotating rods (62).

5. A simple setting-out and measuring device for building construction according to claim 1, characterized in that, The gate mechanism (7) includes an L-shaped gate (71) that is slidably and sealingly connected to the inner wall of the opening located at the wire feeding drum (14). The vertical part of the L-shaped gate (71) is provided with a threaded hole, and the wall of the threaded hole is threadedly connected with an adjusting bolt (72). The side wall of the adjusting bolt (72) is fixedly sleeved with a damping bearing (73), and the outer wall of the damping bearing (73) is fixedly embedded and connected to the outer wall of the wire feeding drum (14).

6. A simple setting-out and measuring device for building construction according to claim 1, characterized in that, The upper surface of the wire feeding drum (14) is provided with a feeding hole (15), and the interior of the wire feeding drum (14) is filled with a layer of lime powder (16).

7. A simple line-laying and measuring device for building construction according to claim 1, characterized in that, The control mechanism (8) includes a touch screen display panel (81), a battery (82), a fixed box (83), and an insulating box (84) fixedly connected to the outer wall of the L-shaped control handle (12). A PLC controller (85) is fixedly connected to the inner wall of the fixed box (83). An alarm (86) is fixedly embedded at the top of the fixed box (83). Two conductive rods (87) are fixedly connected to the upper surface of the insulating box (84). The interior of the insulating box (84) is filled with a conductive ionic liquid layer (88). The bottom end of the conductive rod (87) extends into the interior of the conductive ionic liquid layer (88).

8. A simple line-laying and measuring device for building construction according to claim 1, characterized in that, The bottom end of the positioning rod (1) is fixedly sleeved with a limiting ring (9), and the top side of the L-shaped control handle (12) is fixedly connected with an anti-detachment block (17).

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