Digital display universal movement telescopic flatness detection equipment and use method thereof

Abstract

The invention discloses a digital display universal mobile telescopic flatness detection device and a use method, the device comprises a vehicle body, a push-pull handle is installed on one side of the top of the vehicle body, a first telescopic rod and a second telescopic rod are installed on one side of the top of the vehicle body, and a lifting frame is arranged on the top of the vehicle body between the first telescopic rod and the second telescopic rod in a liftable manner; connecting rods are installed on the two sides of the lifting frame, the top ends of the first telescopic rod and the second telescopic rod are connected with the connecting rods, a lifting mechanism is arranged on the trolley body, the first telescopic rod and the second telescopic rod are jointly and slidably connected with a lifting plate integrally in a U shape, a lifting mechanism is arranged on the lifting frame, a U-shaped base is installed on the lifting plate, and a movable rod is movably connected to the U-shaped base; one end of the movable rod is movably connected with a rotating plate, and the top of the rotating plate is provided with a laser range finder.

Description

Technical Field

[0001] This invention relates to the field of building engineering testing technology, specifically to a digital display universal telescopic flatness testing device and its usage method. Background Technology

[0002] Wall inspection is a crucial part of building construction quality control, aiming to ensure the safety, stability, and durability of wall structures while meeting design requirements and relevant standards and specifications. Wall flatness inspection is an important aspect of structural quality acceptance and a vital basis for subsequent plastering plan development and plaster quantity calculation.

[0003] CN114295037A discloses a wall flatness testing device for building construction, comprising a frame, a testing mechanism, and an alarm component. The testing mechanism is mounted on the frame and located on the side facing the wall, while the alarm component is mounted on the frame and located on the side away from the wall. The testing mechanism includes a detection component and multiple measuring components. The detection component abuts against the wall surface to detect wall flatness, the measuring components display the measurement results of the detection component, and the alarm component provides feedback on the detection results of the measuring components and issues an alarm. This device improves the efficiency of wall flatness testing. However, the overall size of the frame, testing mechanism, and alarm component is large, making it inconvenient to carry and unable to adjust its height. Furthermore, when the device is placed on uneven ground, the frame is too wide, requiring manual support to level it, which can lead to errors in the recorded data when measuring wall flatness. Summary of the Invention

[0004] The purpose of this invention is to provide a digital display universal telescopic flatness testing device and its usage method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a digital display omnidirectional telescopic flatness testing device and its usage method, comprising a vehicle body with omnidirectional wheels installed at the four corners of the bottom, a push-pull handle installed on one side of the top of the vehicle body, a first telescopic rod and a second telescopic rod installed on one side of the top of the vehicle body, a lifting frame that can be raised and lowered between the first telescopic rod and the second telescopic rod on the top of the vehicle body, connecting rods installed on both sides of the lifting frame, the top ends of the first telescopic rod and the second telescopic rod being connected to the connecting rods, a lifting mechanism for driving the lifting frame to move on the vehicle body, a lifting plate that is integrally U-shaped and slidably connected to the first telescopic rod and the second telescopic rod, a lifting mechanism for lifting the lifting plate on the lifting frame, a U-shaped seat installed on the lifting plate, a movable rod movably connected to the U-shaped seat, a rotating plate movably connected to one end of the movable rod, a laser rangefinder for measuring distance installed on the top of the rotating plate, and a display terminal that cooperates with the laser rangefinder installed on the vehicle body.

[0006] Preferably, the first telescopic rod includes a first thick tube and a first thin tube. The bottom end of the first thick tube is mounted on the vehicle body, the bottom end of the first thin tube is movably connected to the inner cavity of the first thick tube, and the top end of the first thin tube is mounted on the bottom of the connecting rod.

[0007] Preferably, the second telescopic rod includes a second thin tube and a second thick tube. The bottom end of the second thin tube is mounted on the vehicle body, and the top end of the second thin tube is slidably connected to the inner cavity of the second thick tube. The top end of the second thick tube is mounted on the bottom of the connecting rod.

[0008] Preferably, both arms of the lifting plate are provided with through holes, and the through holes are fitted with the first thick pipe and the second thick pipe with clearance.

[0009] Preferably, the U-shaped seat has arc-shaped grooves on both sides, and the movable rod has sliding screws on both sides with ends passing through the arc-shaped grooves and threadedly connected to limit nuts. The part of the sliding screw passing through the arc-shaped groove is fitted with a silicone gasket, and the bottom of the movable rod is fitted with an ear block. The two sides of the ear block are fitted with rotating shafts that are rotatably connected to the U-shaped seat.

[0010] Preferably, at least three arc-shaped plates arranged in a ring are installed at one end of the movable rod. The outer wall of the arc-shaped plates arranged in a ring has external threads. A ball is connected to one side of the rotating plate through the rod body. The ball is surrounded by the arc-shaped plates arranged in a ring. An adjusting nut is threadedly connected to the arc-shaped plates arranged in a ring.

[0011] Preferably, a universal spirit level is installed on the top of the rotating plate, which is used to calibrate the levelness of the laser rangefinder.

[0012] Preferably, the lifting mechanism includes a drive motor and a lead screw. The drive motor is mounted on the vehicle body, the lead screw is connected to the output shaft of the drive motor, and the lifting frame is threaded onto the lead screw.

[0013] Preferably, the lifting mechanism includes an electric winch, a rear guide wheel, and a front guide wheel. The electric winch is mounted on the vehicle body. A centrally arched mounting plate is mounted on one side of the lifting frame. Two rear guide wheels are mounted on one side of the mounting plate. The front guide wheel is mounted on the other side of the lifting frame. A steel wire rope is wound on the electric winch. An mounting rod is provided in the inner cavity of the lifting plate. One end of the steel wire rope passes through the rear guide wheel and the front guide wheel in sequence and is connected to the mounting rod.

[0014] Another aspect of the present invention provides a method for using a digital display universal telescopic flatness testing device, comprising the following steps:

[0015] Step 1: Check if the vehicle body is stable, confirm that the batteries of the laser rangefinder and display terminal have sufficient power, and power on and test whether the basic functions are normal.

[0016] Step 2: Move the device to the wall to be measured, keeping it roughly parallel to the wall surface. Observe the universal level bubble to confirm whether the laser rangefinder is in a horizontal state. If the laser rangefinder is not in a horizontal state, rotate the movable rod relative to the rotating shaft and rotate the rotating plate relative to the movable rod until the bubble of the universal level bubble is centered in any direction.

[0017] Step 3: By driving the motor, the lead screw is rotated, and the lifting frame is adjusted to the appropriate starting height.

[0018] Step 4: By controlling the operation of the electric winch, the steel wire rope on the electric winch lifts the lifting plate at a constant speed. During the movement of the lifting plate, the leveled laser rangefinder will continuously emit lasers towards the wall and receive reflected signals to calculate the distance. The obtained data information will be sent to the display terminal in real time.

[0019] Step 5: After the measurement is completed, the obtained data will be analyzed and processed to calculate quantitative indicators such as unevenness and waviness, and a report will be generated.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The omnidirectional wheels and push-pull handle allow for easy movement of the equipment to different measurement points. This enables rapid deployment and positioning of the equipment. Furthermore, the rotating plate housing the laser rangefinder can be adjusted in all directions (front, back, left, and right) to easily level the laser rangefinder, and the main body of the equipment requires no manual support.

[0022] 2. By driving the lifting frame to rise and fall, and extending and retracting the first and second telescopic rods, the maximum working height of the laser rangefinder can be significantly increased, enabling it to easily obtain continuous data of the wall in the vertical direction, avoiding the trouble of manual climbing or repeated movement of the support.

[0023] 3. Data obtained through laser rangefinders can be processed and displayed on a display terminal, providing direct and quantitative evidence for project quality acceptance and avoiding errors that may occur with traditional manual reading and handwritten records. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 This is a structural diagram of the lifting frame at its highest point.

[0027] Figure 4 This is a schematic diagram of the structure when the lifting platform is raised to its highest point.

[0028] Figure 5 This is a structural diagram of the first telescopic rod and the second telescopic rod;

[0029] Figure 6 This is a schematic diagram of the lifting platform.

[0030] Figure 7 This is a schematic diagram of the movable rod.

[0031] Figure 8 for Figure 7 Enlarged diagram of point B in the diagram;

[0032] Figure 9 This is a structural diagram of the mounting plate.

[0033] In the diagram: 1. Vehicle body; 101. Casters; 102. Push-pull handle; 2. First telescopic rod; 201. First thick pipe; 202. First thin pipe; 3. Second telescopic rod; 301. Second thin pipe; 302. Second thick pipe; 4. Lifting frame; 41. Connecting rod; 5. Lifting plate; 501. Perforation; 502. Mounting rod; 6. U-shaped seat; 601. Arc groove; 602. Sliding screw; 603. Silicone 7. Gasket; 604. Limit nut; 7. Movable rod; 701. Ear block; 702. Rotating shaft; 703. Arc-shaped piece; 704. Adjusting nut; 705. Ball; 8. Rotating plate; 9. Laser rangefinder; 10. Universal spirit level; 11. Drive motor; 12. Lead screw; 13. Electric winch; 131. Steel wire rope; 14. Mounting plate; 141. Rear guide wheel; 15. Front guide wheel; 16. Display terminal. Detailed Implementation

[0034] Please see Figure 1-9 This invention provides a technical solution: a digital display omnidirectional telescopic flatness testing device and its usage method, comprising a vehicle body 1 with omnidirectional wheels 101 installed at the four corners of the bottom, a push-pull handle 102 installed on one side of the top of the vehicle body 1, a first telescopic rod 2 and a second telescopic rod 3 installed on one side of the top of the vehicle body 1, a lifting frame 4 that can be raised and lowered between the first telescopic rod 2 and the second telescopic rod 3 on the top of the vehicle body 1, and connecting rods 41 installed on both sides of the lifting frame 4, the top ends of the first telescopic rod 2 and the second telescopic rod 3 being connected to the connecting rods 41. The rods 41 are connected, and the vehicle body 1 is equipped with a lifting mechanism that drives the lifting frame 4 to move. The first telescopic rod 2 and the second telescopic rod 3 are slidably connected to the lifting plate 5, which is U-shaped in shape. The lifting frame 4 is equipped with a lifting mechanism for lifting the lifting plate 5. A U-shaped seat 6 is installed on the lifting plate 5. The U-shaped seat 6 is movably connected to a movable rod 7. One end of the movable rod 7 is movably connected to a rotating plate 8. A laser rangefinder 9 for measuring distance is installed on the top of the rotating plate 8. A display terminal 16 that cooperates with the laser rangefinder 9 is installed on the vehicle body 1.

[0035] The rotating plate 8 is equipped with at least two laser rangefinders 9. The display terminal 16 has components such as a display screen and an STM32 microcontroller. The display terminal 16 is connected to the laser rangefinders 9 via any of the wireless transmission modules such as Bluetooth, LoRa, and 4G. A battery can be installed on the vehicle body 1.

[0036] By moving the movable rod 7 and the rotating plate 8, the laser rangefinder 9 can be adjusted to be horizontal. When the laser rangefinder 9 is horizontal, it can measure the distance between itself and the wall. When the lifting plate 5 is raised or lowered, the laser rangefinder 9 can measure the distance data along the height of the wall. This data can be displayed, recorded and processed through the display terminal 16, avoiding errors in manual recording and improving work efficiency.

[0037] By analyzing the change in the distance between the laser rangefinder 9 and the wall in the height direction, the flatness information of the wall can be obtained.

[0038] The universal wheels 101 at the bottom of the vehicle body 1 can have a self-locking function. The vehicle body 1 can move in all directions through the universal wheels 101 at its bottom. The lifting frame 4 can drive the first telescopic rod 2 and the second telescopic rod 3 through the connecting rods 41 on both sides, thereby adjusting its own height and significantly increasing the maximum lifting height of the laser rangefinder 9.

[0039] The first telescopic rod 2 includes a first thick tube 201 and a first thin tube 202. The bottom end of the first thick tube 201 is mounted on the vehicle body 1, the bottom end of the first thin tube 202 is movably connected to the inner cavity of the first thick tube 201, and the top end of the first thin tube 202 is mounted on the bottom of the connecting rod 41.

[0040] The first thin tube 202 is sleeved on the first thick tube 201. When the lifting frame 4 is driven to rise, the first thin tube 202 moves relative to the first thick tube 201, which can guide the lifting of the lifting frame 4.

[0041] The second telescopic rod 3 includes a second thin tube 301 and a second thick tube 302. The bottom end of the second thin tube 301 is mounted on the vehicle body 1, and the top end of the second thin tube 301 is slidably connected to the inner cavity of the second thick tube 302. The top end of the second thick tube 302 is mounted on the bottom of the connecting rod 41.

[0042] The second thin tube 301 is sleeved on the second thick tube 302. However, when the second telescopic rod 3 is extended, the second thick tube 302 will be in the upper position relative to the second thin tube 301. The movement of the second thick tube 302 relative to the second thin tube 301 can guide the lifting and lowering of the lifting frame 4.

[0043] Both arms of the lifting plate 5 are provided with through holes 501, which are fitted with the first thick pipe 201 and the second thick pipe 302 with clearance.

[0044] The first thick tube 201 and the second thick tube 302 have the same diameter, while the first thin tube 202 and the second thin tube 301 have a smaller diameter than the first thick tube 201. The through hole 501 of the lifting plate 5 can slide relative to the first thick tube 201 and the second thick tube 302.

[0045] When the laser rangefinder 9 is not in use, the lifting plate 5 is located at the bottom of the lifting frame 4. When the lifting frame 4 rises to its maximum height, the lifting plate 5 is lifted upward. At this time, the lifting plate 5 can slide relative to the first thick pipe 201 through the through hole 501 on one side. The first thick pipe 201 can guide the lifting plate 5. When the lifting plate 5 is above the first thick pipe 201, the second thick pipe 302 will pass through another through hole 501 on the lifting plate 5. At this time, the second thick pipe 302 can guide the lifting plate 5 so that the lifting plate 5 can remain stable when it is lifted, so that the laser rangefinder 9 can stably measure the distance between itself and the wall when it rises.

[0046] Mounting holes can be evenly opened along the circumference of the inner wall of the perforated 501. Springs can be installed in the mounting holes, and the ends of the springs are connected to ball bearings that can pass through the mounting holes.

[0047] Both sides of the U-shaped seat 6 are provided with arc-shaped grooves 601. Both sides of the movable rod 7 are equipped with sliding screws 602 whose ends pass through the arc-shaped grooves 601 and are threadedly connected to limit nuts 604. The part of the sliding screw 602 that passes through the arc-shaped grooves 601 is fitted with a silicone gasket 603. The bottom of the movable rod 7 is equipped with an ear block 701. Both sides of the ear block 701 are equipped with rotating shafts 702 that are rotatably connected to the U-shaped seat 6.

[0048] Rotating the movable rod 7 adjusts the forward and backward tilt angle of the rotating plate 8, thereby leveling the laser rangefinder 9 in the forward and backward direction.

[0049] The center of the arc groove 601 is located on the axis of the rotating shaft 702. The movable rod 7 can rotate back and forth relative to the U-shaped seat 6 through the lug 701 and the rotating shaft 702. During this process, the sliding screw 602 on the side of the movable rod 7 can move relative to the arc groove 601.

[0050] When the limit nut 604 is tightened, it will press the silicone gasket 603 onto the outer surface of the U-shaped seat 6. At this time, when the sliding screw 602 slides relative to the arc groove 601, it will generate damping. Depending on the degree of tightening of the limit nut 604, the resistance encountered by the sliding screw 602 will be different. After adjusting the angle of the movable rod 7, the movable rod 7 can maintain its position due to the damping.

[0051] At least three arc-shaped pieces 703 arranged in a ring are installed at one end of the movable rod 7. The outer wall of the arc-shaped pieces 703 is threaded. A ball 705 is connected to one side of the rotating plate 8 through the rod body. The ball 705 is surrounded by the arc-shaped pieces 703 arranged in a ring. The arc-shaped pieces 703 are threadedly connected to the adjusting nut 704.

[0052] Rotating the rotating plate 8 relative to the sphere 705 allows adjustment of the tilt angle of the rotating plate 8 in the left and right directions, thereby leveling the laser rangefinder 9 in this left and right direction.

[0053] The arc-shaped piece 703 is made of elastic metal and has elastic deformation capability. There is a gap between adjacent arc-shaped pieces 703. When the adjusting nut 704 is threaded onto the annularly distributed arc-shaped pieces 703, the arc-shaped pieces 703 will be squeezed by the adjusting nut 704. At this time, the annularly distributed arc-shaped pieces 703 can hold the ball 705 tightly. When the ball 705 rotates relative to the movable rod 7, the ball 705 can maintain a stable position so that the laser rangefinder 9 on the rotating plate 8 can maintain its position.

[0054] A universal spirit level 10 is mounted on the top of the rotating plate 8. The universal spirit level 10 is used to calibrate the levelness of the laser rangefinder 9.

[0055] When adjusting the tilt of the laser rangefinder 9 in the left-right and front-back directions on the rotating plate 8, the person making the adjustment can observe the universal level bubble 10 to determine whether the laser rangefinder 9 has been adjusted to a horizontal position.

[0056] The lifting mechanism includes a drive motor 11 and a lead screw 12. The drive motor 11 is mounted on the vehicle body 1, and the lead screw 12 is connected to the output shaft of the drive motor 11. The lifting frame 4 is threaded onto the lead screw 12.

[0057] The drive motor 11 is electrically connected to the microcontroller on the display terminal 16. The drive motor 11 drives the lead screw 12 to rotate, which can make the lifting frame 4 rise and fall relative to the lead screw 12. At the same time, the first telescopic rod 2 and the second telescopic rod 3 will also extend and retract accordingly.

[0058] When the flatness of the wall does not need to be measured, the first telescopic rod 2 and the second telescopic rod 3 are in the retracted state. At this time, the lifting frame 4 is in a lower position, which facilitates the movement of the entire device. When the flatness of the wall needs to be measured, the first telescopic rod 2 and the second telescopic rod 3 are extended. At this time, the lifting frame 4 is in a relatively higher position, and the laser rangefinder 9 can perform lifting and measuring distance within a higher range.

[0059] The lifting mechanism includes an electric winch 13, a rear guide wheel 141, and a front guide wheel 15. The electric winch 13 is mounted on the vehicle body 1. A centrally arched mounting plate 14 is mounted on one side of the lifting frame 4. Two rear guide wheels 141 are mounted on one side of the mounting plate 14. The front guide wheel 15 is mounted on the other side of the lifting frame 4. A steel wire rope 131 is wound on the electric winch 13. An mounting rod 502 is provided in the inner cavity of the lifting plate 5. One end of the steel wire rope 131 passes through the rear guide wheel 141 and the front guide wheel 15 in sequence and is connected to the mounting rod 502.

[0060] The electric winch 13 is electrically connected to the microcontroller on the display terminal 16.

[0061] Multiple front guide wheels 15 and rear guide wheels 141 can be installed on both sides of the lifting frame 4. The electric winch 13 is located below the rear guide wheel 141. The tops of the front guide wheels 15 and rear guide wheels 141 at the highest position are flush. When the electric winch 13 is working, the wire rope 131 can lift the lifting plate 5 so that the lifting plate 5 can move relative to the first telescopic rod 2 and the second telescopic rod 3, thereby adjusting the height position of the laser rangefinder 9. This allows the laser rangefinder 9 to easily obtain the flatness information of the wall in conjunction with the display terminal 16.

[0062] The method of using a digital display universal telescopic flatness testing device includes the following steps:

[0063] Step 1: Check if the vehicle body 1 is stable, confirm that the batteries of the laser rangefinder 9 and the display terminal 16 have sufficient power, and power on and test whether the basic functions are normal.

[0064] Step 2: Move the device to the wall to be measured, keeping it roughly parallel to the wall surface, observe the universal level 10, and confirm whether the laser rangefinder 9 is in a horizontal state. If the laser rangefinder 9 is not in a horizontal state, drive the movable rod 7 to rotate relative to the rotating shaft 702, and drive the rotating plate 8 to rotate relative to the movable rod 7, until the bubble of the universal level 10 is centered in any direction.

[0065] Step 3: Drive the motor 11 to rotate the lead screw 12 and adjust the lifting frame 4 to the appropriate starting height.

[0066] Step 4: By controlling the operation of the electric winch 13, the steel wire rope 131 on the electric winch 13 lifts the lifting plate 5 at a uniform speed. During the movement of the lifting plate 5, the leveled laser rangefinder 9 will continuously emit lasers towards the wall and receive reflected signals and calculate the distance. The obtained data information will be sent to the display terminal 16 in real time.

[0067] Step 5: After the measurement is completed, the obtained data will be analyzed and processed to calculate quantitative indicators such as unevenness and waviness, and a report will be generated.

Claims

1. A digital display universal mobile telescopic flatness detection equipment, comprising a vehicle body (1) with four universal wheels (101) installed at the corners of the bottom, characterized in that: The top side of the vehicle body (1) is provided with a push-pull handle (102), the top side of the vehicle body (1) is provided with a first telescopic rod (2) and a second telescopic rod (3), a lifting frame (4) is arranged between the first telescopic rod (2) and the second telescopic rod (3) on the top of the vehicle body (1) and can be lifted, connecting rods (41) are arranged on both sides of the lifting frame (4), the top ends of the first telescopic rod (2) and the second telescopic rod (3) are connected with the connecting rods (41), a lifting mechanism for driving the lifting frame (4) to move is arranged on the vehicle body (1), the first telescopic rod (2) and the second telescopic rod (3) are slidably connected with a lifting plate (5) in the shape of a whole U, a lifting mechanism for lifting the lifting plate (5) is arranged on the lifting frame (4), a U-shaped seat (6) is arranged on the lifting plate (5), a movable rod (7) is movably connected with the U-shaped seat (6), a rotating plate (8) is movably connected with one end of the movable rod (7), a laser range finder (9) for measuring distance is arranged on the top of the rotating plate (8), and a display terminal (16) matched with the laser range finder (9) is arranged on the vehicle body (1).

2. The digital display universal mobile telescopic flatness detection device according to claim 1, characterized in that: The first telescopic rod (2) comprises a first thick pipe (201) and a first thin pipe (202), the bottom end of the first thick pipe (201) is arranged on the vehicle body (1), and the bottom end of the first thin pipe (202) is movably connected in the inner cavity of the first thick pipe (201).

3. The digital display universal mobile telescopic flatness detection device according to claim 2, characterized in that: The second telescopic rod (3) comprises a second thin pipe (301) and a second thick pipe (302), the bottom end of the second thin pipe (301) is arranged on the vehicle body (1), the top end of the second thin pipe (301) is slidably connected in the inner cavity of the second thick pipe (302), and the top end of the second thick pipe (302) is arranged on the bottom of the connecting rod (41).

4. The digital display universal mobile telescopic flatness detection device according to claim 1, characterized in that: Perforations (501) are arranged on both arms of the lifting plate (5), and the perforations (501) are matched with the first thick pipe (201) and the second thick pipe (302) in gaps.

5. The digital display universal mobile telescopic flatness detection device according to claim 1, characterized in that: Arc-shaped grooves (601) are arranged on both sides of the U-shaped seat (6), sliding screws (602) with end portions penetrating through the arc-shaped grooves (601) and being threadedly connected with limiting nuts (604) are arranged on both sides of the movable rod (7), the part of the sliding screws (602) penetrating through the arc-shaped grooves (601) is sleeved with silica gel pads (603), ear blocks (701) are arranged on the bottom of the movable rod (7), and rotating shafts (702) rotatably connected with the U-shaped seat (6) are arranged on both sides of the ear blocks (701).

6. The digital display universal mobile telescopic flatness detection device according to claim 1, characterized in that: At least three arc-shaped pieces (703) arranged in a ring shape are arranged on one end of the movable rod (7), the outer wall of the arc-shaped pieces (703) arranged in a ring shape is provided with external threads, a ball (705) is connected with one side of the rotating plate (8) through a rod body, the ball (705) is surrounded by the arc-shaped pieces (703) arranged in a ring shape, and the arc-shaped pieces (703) arranged in a ring shape are threadedly connected with adjusting nuts (704).

7. The digital display universal mobile telescopic flatness detection device according to claim 1, characterized in that: The top of the rotating plate (8) is provided with a universal level bubble (10) for calibrating the levelness of the laser range finder (9).

8. The digital display universal mobile telescopic flatness detection device according to claim 1, characterized in that: The lifting mechanism comprises a driving motor (11) and a screw rod (12), the driving motor (11) is installed on the vehicle body (1), the screw rod (12) is connected with the output shaft of the driving motor (11), and the lifting frame (4) is threadedly sleeved on the screw rod (12).

9. The digital display universal mobile telescopic flatness detection device according to claim 1, characterized in that: The lifting mechanism comprises an electric winch (13), rear guide wheels (141) and front guide wheels (15), the electric winch (13) is installed on the vehicle body (1), one side of the lifting frame (4) is provided with a middle-arched mounting plate (14), two rear guide wheels (141) are installed on one side of the mounting plate (14), the front guide wheels (15) are installed on the other side of the lifting frame (4), the electric winch (13) is wound with a steel wire rope (131), the inner cavity of the lifting plate (5) is provided with a mounting rod (502), one end of the steel wire rope (131) passes through the rear guide wheels (141) and the front guide wheels (15) in sequence and is connected with the mounting rod (502).

10. The method of using the digital display universal mobile telescopic flatness detection device according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: Step one, check whether the vehicle body (1) is stable, confirm that the battery power of the laser range finder (9) and the display terminal (16) is sufficient, and test whether the basic functions are normal; Step two, move the device to the front of the wall to be measured, roughly keep parallel with the wall surface, observe the universal level bubble (10), and confirm whether the laser range finder (9) is in a horizontal state, if the laser range finder (9) is not in a horizontal state, drive the movable rod (7) to rotate relative to the rotating shaft (702), and drive the rotating plate (8) to rotate relative to the movable rod (7), until the bubble of the universal level bubble (10) is centered in any direction; Step three, rotate the screw rod (12) by driving the driving motor (11) to work, and adjust the lifting frame (4) to a suitable starting height; Step four, control the electric winch (13) to work, the steel wire rope (131) on the electric winch (13) uniformly lifts the lifting plate (5), in the movement process of the lifting plate (5), the leveled laser range finder (9) continuously emits laser to the wall and receives the reflected signal to calculate the distance, and the obtained data information is sent to the display terminal (16) in real time; Step five, after the measurement is completed, analyze and process the obtained data information, calculate the quantified indexes such as unevenness and waviness, and form a report.

Images