A device for measuring the levelness of land used for urban planning

Abstract

The present invention relates to the technical field of measuring devices, specifically a device for measuring the levelness of urban planning land, including a measuring vehicle, on which a self-balancing component and a high-pressure air pump are respectively installed, the air outlet of the high-pressure air pump is connected to an air supply hose, the self-balancing component is connected to a self-leveling frame, on which two symmetrically arranged scissor-type load components are installed, and a group of measuring components are installed on the two scissor-type load components, and the measuring components include a measuring frame, and the back of the measuring frame is slidably connected to two sliders, and the backs of the two sliders are installed with positioning rods, and the two positioning rods are connected to the scissor-type load components. The beneficial effect of the present invention is that during the measurement operation, the present invention can synchronously realize multi-point and multi-station measurement of the ground, and at the same time, the present device has both automatic physical recording and electronic recording functions of the measurement results, and through the realization of the dual recording function, the functionality of the present measuring device is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of measuring devices, in particular to a device for measuring the levelness of urban planning land. Background Art

[0002] Before construction of planned land, it is usually necessary to measure the level of the ground to determine a suitable construction plan. In the prior art, a patent document with publication number CN211783415U discloses a device for measuring the level of planned land, including a traveling trolley, a main control unit installed on the traveling trolley, and a detection unit installed on the traveling trolley and electrically connected to the main control unit. The detection unit includes a rangefinder for detecting the height difference between a concave and convex surface and a horizontal line, a balancing mechanism for installing the rangefinder, and a lifting mechanism for promoting the lifting of the balancing mechanism. The main control unit includes a data collector connected to the rangefinder, a storage device for storing data collected by the data collector, and a central processing unit for controlling the operation of the balancing mechanism and the lifting mechanism.

[0003] The above-mentioned device drives the rangefinder to measure the height difference between different points through the movement of the walking trolley, so as to determine the horizontality of the walking route. However, the above-mentioned measuring device is not convenient for synchronously realizing multi-station and multi-point measurement on the one hand, and is not convenient for adjusting the measuring range and pre-cleaning the measuring ground on the other hand. It is also not convenient for realizing automatic dyeing marking of non-horizontal ground or measuring position. Based on this, the present invention provides a device for measuring the horizontality of urban planning land to solve the problems raised in the above-mentioned background technology. Summary of the invention

[0004] The present invention aims at the technical problems existing in the prior art and provides a device for measuring the horizontality of land for urban planning to solve the problems that the existing measuring devices are not convenient for synchronously realizing multi-station and multi-point measurement on the one hand, and are not convenient for adjusting the measuring range and pre-cleaning the measuring ground on the other hand, and are not convenient for automatic dyeing marking of non-horizontal ground or measuring position.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: a device for measuring the levelness of land for urban planning, comprising a measuring vehicle, on which a self-balancing component and a high-pressure air pump are respectively installed, the air outlet end of the high-pressure air pump is connected to an air supply hose, the self-balancing component is connected to a self-leveling frame, on which two symmetrically arranged scissor-type load components are installed, and a set of measuring components are installed on each of the two scissor-type load components;

[0006] The measuring component includes a measuring frame, the back of the measuring frame is slidably connected to two sliders, the backs of the two sliders are each installed with a positioning rod, the two positioning rods are connected to the shear-type load component, the measuring frame is respectively installed with a measuring cylinder, a reading mark module and a pigment marking assembly, a measuring rod is slidably connected in the measuring cylinder, a measuring wheel is installed at the bottom end of the measuring rod, a spring is sleeved on the measuring rod and corresponds to the position between the measuring wheel and the measuring cylinder, a tooth transmission part is provided on the measuring rod, the pigment marking assembly and the reading mark module are both linked to the tooth transmission part, an air cleaning spray pipe is installed on the measuring rod, and the air cleaning spray pipe is connected to the air supply hose through a flexible connecting pipe.

[0007] Based on the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the self-balancing component includes a screw lifting module installed on the measuring vehicle, the screw lifting module is transmission-connected with a lifting frame, the lifting frame is rotatably connected with a balancing shaft, a hanging seat is installed on the balancing shaft, two symmetrically arranged hinge shafts are installed on the self-balancing frame, both of the hinge shafts are hinged to the hanging seat, a counterweight column is installed on the self-balancing frame, and a group of walking wheels are installed on the bottom surface of the measuring frame.

[0009] The beneficial effect of adopting the above further solution is that during the measurement operation, the distance between the measuring wheel and the urban planning land to be measured can be quickly adjusted by setting the liftable structure of the lift frame;

[0010] When not in the measurement state, the height of the lifting frame is set so that the set height difference between the measuring wheel and the urban planning land to be measured is maintained;

[0011] When in the measuring state, the height of the lifting frame is set so that the measuring wheel is in close contact with the urban planning land to be measured, and then the measuring operation is carried out. During the measuring operation, the air cleaning nozzle discharges high-pressure air. After the air cleaning nozzle discharges high-pressure air, the impurities on the ground to be measured are blown away with high pressure. Through the high-pressure blowing, the influence of ground impurities on the measuring accuracy of the measuring components is effectively reduced, thereby assisting in improving the measuring accuracy of the measuring device.

[0012] Furthermore, the axis of the balancing shaft is perpendicular to the axis of the hinge shaft and the counterweight column, the axis of the balancing shaft is parallel to the horizontal plane, the center of gravity of the counterweight column is vertically downward, and the walking direction of the walking wheel is the same as the walking direction of the measuring wheel.

[0013] The beneficial effect of adopting the above further solution is that when the measuring vehicle is moving, the counterweight column, the balancing shaft and the hinge shaft are arranged so that the self-leveling frame can continuously maintain horizontality during the moving process of the vehicle, and the center of gravity of the counterweight column can be kept vertically downward;

[0014] The horizontal state of the self-leveling frame is maintained, thereby effectively improving the measuring accuracy of the measuring device.

[0015] Furthermore, the scissor-type load component includes an expansion frame and a screw transmission module installed on the self-leveling frame, a group of "X"-shaped frames hinged in sequence are installed between the expansion frame and the self-leveling frame, and two symmetrically arranged positioning sleeves are provided at the hinges of the two "X"-shaped frames, and each of the positioning rods is rotatably connected to a positioning sleeve at a corresponding position, and a certain hinge seat is installed on the expansion frame and the self-leveling frame, and a movable hinge seat is slidably connected to the expansion frame and the self-leveling frame, and the fixed hinge seat and the movable hinge seat are hinged to an "X"-shaped frame at an adjacent position, and the screw transmission module is transmission-connected to the movable hinge seat on the self-leveling frame.

[0016] The beneficial effect of adopting the above further solution is that in the non-measurement mode, under the driving action of the screw drive module, the two scissor-type load components are fully retracted, and after the two scissor-type load components are fully retracted, the occupied volume of the measuring device in the non-measurement state is effectively reduced, thereby facilitating the rapid deployment and transfer of the measuring device in the non-measurement state;

[0017] In the measurement mode, under the driving action of the screw drive module, the two scissor-type load components are expanded to a set degree. After the two scissor-type load components are expanded, the measurement layout position of each measuring component and the distance between the two measuring components are changed;

[0018] By changing the arrangement positions of the measuring components and the spacing between the measuring components, the measuring coverage of the device in the single measurement mode can be adjusted, and by adjusting the measuring range, the measuring efficiency of the device can be adjusted.

[0019] Further, the reading marking component includes a pneumatic module, which is transmission-connected with an annular marking belt, and a scale mark is fixedly provided on the annular marking belt. An eraser is fixedly installed on the measuring frame, and the eraser is in contact with the annular marking belt. A guide rail is fixedly provided on the measuring frame, and a marking seat is slidably connected to the guide rail. An erasable pen is installed on the marking seat, and a driven gear plate is installed on the marking seat. The measuring frame is rotatably connected with a coupling shaft, and two linkage gears are installed on the coupling shaft. The two linkage gears are respectively transmission-connected with the driven gear plate and the tooth transmission part.

[0020] Furthermore, the reading mark component also includes a distance measuring probe fixed on the measuring frame, the detection end of the distance measuring probe faces the guide rail, a single chip microcomputer is installed on the measuring vehicle, and the data end of the distance measuring probe is connected to the single chip microcomputer data.

[0021] Furthermore, the pneumatic module includes two transmission wheels rotatably connected to the measuring frame, both of the transmission wheels are transmission-connected to the annular marking belt, a pump barrel is installed on the measuring frame, the inner wall of the pump barrel is rotatably connected to the pump shaft, the output shaft end of the pump shaft is fixedly connected to one of the transmission wheels, a group of pump blades distributed in a circular array are installed on the pump shaft and at a position corresponding to the inner side of the pump barrel, an air duct is fixedly connected between the pump barrel and the air supply hose, and an air outlet pipe is connected to the pump barrel.

[0022] The beneficial effect of adopting the above further scheme is that during the measurement operation, the high-pressure air pump continuously discharges high-pressure air, and after the high-pressure air pump discharges high-pressure air, a constant-speed and constant-pressure airflow is then sent into the pump barrel, and after the constant-speed and constant-pressure airflow is sent into the pump barrel, the pump shaft is then driven to rotate, and after the pump shaft rotates, the annular marking belt is then driven to rotate at a set speed, and after the annular marking belt rotates, the measurement results are cyclically recorded during the measurement of the measuring wheel;

[0023] The scale setting on the annular marking belt facilitates the quick manual reading of the measuring wheel measurement results;

[0024] When the measuring rod or measuring wheel changes position due to the change of ground level, the displacement of the measuring rod is transmitted to the marking seat, and after the marking seat moves, it drives the erasable pen to perform marking operation.

[0025] Furthermore, the axis of the erasable pen is parallel to the axis of the measuring rod, and the axis of the erasable pen is perpendicular to the axis of the transmission wheel.

[0026] The beneficial effect of adopting the above further solution is that the marking lines drawn by the erasable pen can be erased by the eraser, thereby allowing the annular marking tape to perform marking operations in a cycle.

[0027] Furthermore, the pigment marking component includes a dyeing cylinder fixed on a measuring frame, wherein the dyeing cylinder stores marking dye, an outer valve tube is installed at the bottom of the dyeing cylinder, a group of outer valve holes are opened in the middle of the outer valve tube, the outer valve holes are connected to the inner cavity of the dyeing cylinder, the inner wall of the outer valve tube is slidably connected with an inner valve tube, a liquid outlet channel is fixedly opened inside the inner valve tube, two groups of inner valve holes cooperating with the outer valve holes are opened on the inner valve tube, the two groups of inner valve holes are respectively arranged on both sides of the outer valve hole, the inner valve tube is fixedly connected to a measuring rod, a dropper is slidably connected to the inner wall of the liquid outlet channel, a marking ring tube is installed on the measuring rod, the liquid outlet port of the dropper is connected to the inner cavity of the marking ring tube, and a group of dropper holes distributed in a circular array are opened on the bottom surface of the marking ring tube.

[0028] The beneficial effect of adopting the above further scheme is that during the measurement operation, a sufficient amount of marking dye is stored in the dyeing cylinder, and when the ground level meets the requirements, the outer valve hole is staggered with the two groups of inner valve holes, and no liquid flows out of the drip hole and no dye marking is performed. When the ground is too high or too low, the outer valve hole is connected to the inner valve hole, and liquid flows out of the drip hole, and then the non-horizontal ground or non-horizontal position on the ground is quickly marked. By realizing the above marking function, it is convenient for subsequent staff to deal with the non-horizontal ground or non-horizontal position on the ground.

[0029] The beneficial effects of the present invention are:

[0030] 1. The present invention can synchronously realize multi-point and multi-station measurement of the ground during the measurement operation. At the same time, the device has both automatic physical and electronic recording functions of the measurement results. Through the realization of the dual recording function, the functionality of the measuring device is effectively improved. When the device is working, the measurement range can be adjusted and the measurement ground can be pre-cleaned. At the same time, when the device is working, it can also automatically dye and mark the non-horizontal ground or measurement position, which is convenient for subsequent processing by personnel.

[0031] 2. During the measurement operation of the present invention, the high-pressure air pump continuously discharges high-pressure air. After the high-pressure air pump discharges high-pressure air, a constant-speed and constant-pressure airflow is then sent into the pump barrel. After the constant-speed and constant-pressure airflow is sent into the pump barrel, the pump shaft is driven to rotate. After the pump shaft rotates, the annular marking belt is driven to rotate at a set speed. After the annular marking belt rotates, the measurement results are cyclically recorded during the measurement of the measuring wheel. The scale setting on the annular marking belt facilitates the rapid manual reading of the measurement results of the measuring wheel.

[0032] 3. In the present invention, in the non-measurement mode, under the driving action of the screw transmission module, the two scissor-type load components are fully retracted. After the two scissor-type load components are fully retracted, the occupied volume of the measuring device in the non-measurement state is effectively reduced, thereby facilitating the rapid deployment and transfer of the measuring device in the non-measurement state. In the measurement mode, under the driving action of the screw transmission module, the two scissor-type load components are expanded to a set degree. After the two scissor-type load components are expanded, the measurement layout position of each measuring component and the distance between the two measuring components are changed. By changing the layout position of the measuring components and the distance between the two measuring components, the measurement coverage range of the device in the single measurement mode is adjusted, and by adjusting the measurement range, the measurement efficiency of the device is adjusted.

[0033] 4. When the present invention is performing measurement operations, the air cleaning nozzle discharges high-pressure air. After the air cleaning nozzle discharges high-pressure air, the impurities on the ground to be measured are blown away with high pressure. Through the high-pressure blowing, the influence of the ground impurities on the measurement accuracy of the measurement components is effectively reduced, thereby assisting in improving the measurement accuracy of the present measurement device.

[0034] 5. When the present invention is performing measurement operations, a sufficient amount of marking dye is stored in the dyeing cylinder. When the ground level meets the requirements, the outer valve hole is staggered with the two groups of inner valve holes, and no liquid is discharged from the drip hole and no dye marking is performed. When the ground is too high or too low, the outer valve hole is connected to the inner valve hole, and liquid is discharged from the drip hole, and then the non-horizontal ground or non-horizontal position on the ground is quickly marked. By realizing the above-mentioned marking function, it is convenient for subsequent staff to handle the non-horizontal ground or non-horizontal position on the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of a device for measuring the levelness of land for urban planning according to the present invention;

[0036] Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0037] Figure 3 For the present invention Figure 1 A schematic diagram of the rear view perspective structure;

[0038] Figure 4 For the present invention Figure 3 A schematic diagram of the local enlarged structure at B in the middle;

[0039] Figure 5 It is a schematic diagram of the structure of the counterweight column and the measuring cylinder of the present invention;

[0040] Figure 6 For the present invention Figure 5 A schematic diagram of the local enlarged structure at C in the middle;

[0041] Figure 7 For the present invention Figure 5 A schematic diagram of the local enlarged structure at D in the middle;

[0042] Figure 8 It is a schematic diagram of the cross-sectional structure of the measuring rod and the annular marking belt of the present invention;

[0043] Fig. 9 For the present invention Figure 8 A schematic diagram of the local enlarged structure at E in the middle;

[0044] Fig.10 It is a schematic diagram of the structure of the air cleaning spray pipe and the dyeing cylinder.

[0045] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0046] 1. Measuring vehicle; 2. High-pressure air pump; 3. Air supply hose; 4. Self-leveling frame; 5. Measuring frame; 6. Sliding block; 7. Positioning rod; 8. Measuring cylinder; 9. Measuring rod; 10. Measuring wheel; 11. Spring; 12. Gear transmission unit; 13. Air cleaning nozzle; 14. Screw lifting module; 15. Lifting frame; 16. Balance shaft; 17. Hanging seat; 18. Counterweight column; 19. Travel wheel; 20. Extension frame; 21. Screw transmission module; 22. "X"-shaped frame; 23. Positioning sleeve; 24. Ring marking tape; 25. Marking seat; 26. Erasable pen; 27. Driven gear plate; 28. Coupling; 29. ​​Linkage gear; 30. Distance measuring probe; 31. Single chip microcomputer; 32. Transmission wheel; 33. Dyeing cylinder; 34. External valve tube; 35. External valve hole; 36. Internal valve tube; 37. Internal valve hole; 38. Dropper; 39. Marking ring tube; 40. Pump barrel; 41. Air bleed tube; 42. Wiping block. DETAILED DESCRIPTION

[0047] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0048] The present invention provides the following preferred embodiments

[0049] like Figure 1-10 As shown, a device for measuring the levelness of land for urban planning comprises a measuring vehicle 1, on which a self-balancing component and a high-pressure air pump 2 are respectively installed, an air outlet end of the high-pressure air pump 2 is connected to an air supply hose 3, and a self-leveling frame 4 is connected to the self-balancing component;

[0050] The self-balancing component includes a screw lifting module 14 installed on the measuring vehicle 1, the screw lifting module 14 is transmission-connected with a lifting frame 15, the lifting frame 15 is rotatably connected with a balancing shaft 16, a hanger 17 is installed on the balancing shaft 16, two symmetrically arranged hinge shafts are installed on the self-balancing frame 4, both hinge shafts are hinged to the hanger 17, a counterweight column 18 is installed on the self-balancing frame 4, and a group of walking wheels 19 are installed on the bottom surface of the measuring frame 5.

[0051] The axis of the balancing shaft 16 is perpendicular to the axis of the hinge shaft and the counterweight column 18, the axis of the balancing shaft 16 is parallel to the horizontal plane, and the center of gravity of the counterweight column 18 is vertically downward;

[0052] During the measurement operation, the lifting frame 15 is provided with a liftable structure, so that the distance between the measuring wheel 10 and the urban planning land to be measured can be quickly adjusted;

[0053] In the non-measurement state, the height of the lifting frame 15 is set so that the set height difference between the measuring wheel 10 and the urban planning land to be measured is maintained;

[0054] In the measuring state, the height of the lifting frame 15 is set so that the measuring wheel 10 is in close contact with the urban planning land to be measured, and then the measuring operation is carried out. During the measuring operation, the air cleaning nozzle 13 discharges air at high pressure. After the air cleaning nozzle 13 discharges air at high pressure, the impurities on the ground to be measured are blown away at high pressure. By blowing away at high pressure, the influence of ground impurities on the measuring accuracy of the measuring components is effectively reduced, and then the measuring accuracy of the measuring device is improved.

[0055] When the measuring vehicle 1 is moving, the counterweight column 18, the balancing shaft 16 and the hinge shaft are arranged so that the self-leveling frame 4 can keep level and the center of gravity of the counterweight column 18 can keep vertically downward during the moving process of the vehicle.

[0056] By maintaining the horizontal state of the self-leveling frame 4, the measurement accuracy of the measuring device is effectively improved;

[0057] Two symmetrically arranged scissor-type load components are installed on the self-leveling frame 4, and a set of measuring components are installed on each of the two scissor-type load components;

[0058] The measuring component includes a measuring frame 5, the back of the measuring frame 5 is slidably connected to two sliders 6, the backs of the two sliders 6 are both installed with positioning rods 7, and the two positioning rods 7 are both connected to the shear load component. The measuring frame 5 is respectively installed with a measuring cylinder 8, a reading mark module and a pigment mark component, a measuring rod 9 is slidably connected in the measuring cylinder 8, and a measuring wheel 10 is installed at the bottom end of the measuring rod 9, and the walking direction of the walking wheel 19 is the same as the walking direction of the measuring wheel 10;

[0059] A spring 11 is sleeved on the measuring rod 9 and corresponds to the position between the measuring wheel 10 and the measuring cylinder 8. A tooth transmission part 12 is arranged on the measuring rod 9. The pigment marking component and the reading marking module are both linked to the tooth transmission part 12. An air cleaning spray pipe 13 is installed on the measuring rod 9. The air cleaning spray pipe 13 is connected to the air supply hose 3 through a flexible connecting pipe.

[0060] The scissor-type load component includes an expansion frame 20 and a screw transmission module 21 installed on the self-leveling frame 4. A group of "X"-shaped frames 22 hinged in sequence are installed between the expansion frame 20 and the self-leveling frame 4. Two symmetrically arranged positioning sleeves 23 are arranged at the hinges of the two "X"-shaped frames 22. Each positioning rod 7 is rotatably connected to a positioning sleeve 23 at a corresponding position. A certain hinge seat is installed on the expansion frame 20 and the self-leveling frame 4. A movable hinge seat is slidably connected to the expansion frame 20 and the self-leveling frame 4. The fixed hinge seat and the movable hinge seat are hinged to an "X"-shaped frame 22 at an adjacent position. The screw transmission module 21 is transmission-connected to the movable hinge seat on the self-leveling frame 4.

[0061] In the non-measurement mode, under the driving action of the screw drive module 21, the two scissor-type load components are fully retracted. After the two scissor-type load components are fully retracted, the occupied volume of the measuring device in the non-measurement state is effectively reduced, thereby facilitating the rapid deployment and transfer of the measuring device in the non-measurement state;

[0062] In the measurement mode, under the driving action of the screw drive module 21, the two scissor-type load components are expanded to a set degree. After the two scissor-type load components are expanded, the measurement layout position of each measuring component and the distance between the two measuring components are changed;

[0063] By changing the arrangement positions of the measuring components and the spacing between the measuring components, the measuring coverage of the device in the single measurement mode can be adjusted, and by adjusting the measuring range, the measuring efficiency of the device can be adjusted.

[0064] The reading marking component includes a pneumatic module, which is transmission-connected with an annular marking belt 24, on which a scale mark is fixedly provided, a wiper block 42 is fixedly installed on the measuring frame 5, the wiper block 42 is in contact with the annular marking belt 24, a guide rail is fixedly provided on the measuring frame 5, a marking seat 25 is slidingly connected on the guide rail, an erasable pen 26 is installed on the marking seat 25, a driven gear plate 27 is installed on the marking seat 25, a coupling shaft 28 is rotationally connected to the measuring frame 5, two linkage gears 29 are installed on the coupling shaft 28, and the two linkage gears 29 are transmission-connected with the driven gear plate 27 and the tooth transmission part 12 respectively.

[0065] The reading mark component also includes a distance measuring probe 30 fixed on the measuring frame 5, the detection end of the distance measuring probe 30 is facing the guide rail, a single chip microcomputer 31 is installed on the measuring vehicle 1, and the data end of the distance measuring probe 30 is connected to the single chip microcomputer 31.

[0066] The pneumatic module includes two transmission wheels 32 rotatably connected to the measuring frame 5, and the two transmission wheels 32 are both transmission-connected to the annular marking belt 24. A pump barrel 40 is installed on the measuring frame 5, and the inner wall of the pump barrel 40 is rotationally connected to the pump shaft, and the output shaft end of the pump shaft is fixedly connected to a transmission wheel 32. A group of pump blades distributed in a circular array are installed on the pump shaft and at a position corresponding to the inner side of the pump barrel 40. An air duct 41 is fixedly connected between the pump barrel 40 and the air supply hose 3, and an air outlet pipe is connected to the pump barrel 40.

[0067] During the measurement operation, the high-pressure air pump 2 continuously discharges high-pressure air. After the high-pressure air pump 2 discharges high-pressure air, a constant-speed and constant-pressure airflow is then sent into the pump barrel 40. After the constant-speed and constant-pressure airflow is sent into the pump barrel 40, the pump shaft is driven to rotate. After the pump shaft rotates, the annular marking belt 24 is driven to rotate at a set speed. After the annular marking belt 24 rotates, the measurement results are cyclically recorded during the measurement process of the measuring wheel 10.

[0068] The scale setting on the annular marking belt 24 facilitates the rapid manual reading of the measurement results of the measuring wheel 10;

[0069] When the measuring rod 9 or the measuring wheel 10 changes position due to the change in ground level, the displacement of the measuring rod 9 is transmitted to the marking seat 25. After the marking seat 25 is displaced, it drives the erasable pen 26 to perform marking.

[0070] The axis of the erasable pen 26 is parallel to the axis of the measuring rod 9 , and the axis of the erasable pen 26 is perpendicular to the axis of the transmission wheel 32 .

[0071] The marking lines drawn by the erasable pen 26 can be erased by the eraser, so that the endless marking tape 24 can be circulated to perform the marking operation.

[0072] The pigment marking component includes a dyeing cylinder 33 fixed on the measuring frame 5, and the dyeing cylinder 33 stores marking dye. An outer valve tube 34 is installed at the bottom of the dyeing cylinder 33, and a group of outer valve holes 35 are opened in the middle of the outer valve tube 34. The outer valve holes 35 are connected to the inner cavity of the dyeing cylinder 33. The inner wall of the outer valve tube 34 is slidably connected with an inner valve tube 36, and a liquid outlet channel is fixedly opened inside the inner valve tube 36. Two groups of inner valve holes 37 cooperating with the outer valve holes 35 are opened on the inner valve tube 36, and the two groups of inner valve holes 37 are respectively arranged on both sides of the outer valve hole 35. The inner valve tube 36 is fixedly connected to the measuring rod 9, and a dropper 38 is slidably connected to the inner wall of the liquid outlet channel. A marking ring tube 39 is installed on the measuring rod 9, and the liquid outlet port of the dropper 38 is connected to the inner cavity of the marking ring tube 39. The bottom surface of the marking ring tube 39 is opened with a group of dropper holes distributed in a circular array.

[0073] During measurement, a sufficient amount of marking dye is stored in the dye cylinder 33. When the ground level meets the requirements, the outer valve hole 35 is staggered with the two groups of inner valve holes 37, and no liquid flows out of the drip hole and no dye marking is performed. When the ground is too high or too low, the outer valve hole 35 is connected with the inner valve hole 37, and liquid flows out of the drip hole, and then the non-horizontal ground or non-horizontal position on the ground is quickly marked. By realizing the above-mentioned marking function, it is convenient for subsequent staff to deal with the non-horizontal ground or non-horizontal position on the ground.

[0074] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for measuring the levelness of land for urban planning, comprising a measuring vehicle (1), characterized in that: The measuring vehicle (1) is respectively equipped with a self-balancing component and a high-pressure air pump (2), the air outlet of the high-pressure air pump (2) is connected to an air supply hose (3), the self-balancing component is connected to a self-leveling frame (4), the self-leveling frame (4) is equipped with two symmetrically arranged shear-type load components, and a set of measuring components is installed on each of the two shear-type load components; The measuring component comprises a measuring frame (5), the back of the measuring frame (5) is slidably connected to two sliders (6), the backs of the two sliders (6) are both equipped with positioning rods (7), the two positioning rods (7) are both connected to the shear load component, and the measuring frame (5) is respectively equipped with a measuring cylinder (8), a reading mark module and a pigment mark assembly; A measuring rod (9) is slidably connected in the measuring cylinder (8), a measuring wheel (10) is installed at the bottom end of the measuring rod (9), a spring (11) is sleeved on the measuring rod (9) and corresponds to the position between the measuring wheel (10) and the measuring cylinder (8), a tooth transmission part (12) is arranged on the measuring rod (9), the pigment marking component and the reading marking module are both linked to the tooth transmission part (12), and an air cleaning spray pipe (13) is installed on the measuring rod (9), and the air cleaning spray pipe (13) is connected to the air supply hose (3) through a flexible connecting pipe. The self-balancing component comprises a screw lifting module (14) installed on the measuring vehicle (1), the screw lifting module (14) is transmission-connected to a lifting frame (15), the lifting frame (15) is rotationally connected to a balancing shaft (16), a suspension seat (17) is installed on the balancing shaft (16), the self-balancing frame (4) is installed with two symmetrically arranged hinge shafts, both of which are hinged to the suspension seat (17), a counterweight column (18) is installed on the self-balancing frame (4), and a group of walking wheels are installed on the bottom surface of the measuring frame (5). (19); the axis of the balancing shaft (16) is perpendicular to the axis of the hinge shaft and the counterweight column (18); the axis of the balancing shaft (16) is parallel to the horizontal plane; the center of gravity of the counterweight column (18) is vertically downward; the travel direction of the walking wheel (19) is the same as the travel direction of the measuring wheel (10); the scissor-type load component includes an expansion frame (20) and a screw transmission module (21) installed on the self-leveling frame (4); a group of "X"-shaped frames (22) hinged in sequence are installed between the expansion frame (20) and the self-leveling frame (4) The hinges of the two "X"-shaped frames (22) are each provided with two symmetrically arranged positioning sleeves (23), each of the positioning rods (7) is rotatably connected to a positioning sleeve (23) at a corresponding position, the expansion frame (20) and the self-leveling frame (4) are each provided with a certain hinge seat, the expansion frame (20) and the self-leveling frame (4) are each slidably connected to a movable hinge seat, the fixed hinge seat and the movable hinge seat are both hinged to an "X"-shaped frame (22) at an adjacent position, and the screw drive module (21) is transmission-connected to the movable hinge seat on the self-leveling frame (4).

2. The device for measuring the levelness of urban planning land according to claim 1, characterized in that: The reading marking module comprises a pneumatic module, the pneumatic module is drivingly connected to an annular marking belt (24), a scale mark is fixedly arranged on the annular marking belt (24), an wiping block (42) is fixedly mounted on the measuring frame (5), the wiping block (42) is in contact with the annular marking belt (24), a guide rail is fixedly mounted on the measuring frame (5), a marking seat (25) is slidably connected to the guide rail, an erasable pen (26) is mounted on the marking seat (25), a driven toothed plate (27) is mounted on the marking seat (25), a coupling shaft (28) is rotatably connected to the measuring frame (5), two linkage gears (29) are mounted on the coupling shaft (28), and the two linkage gears (29) are drivingly connected to the driven toothed plate (27) and the tooth transmission part (12) respectively.

3. The device for measuring the levelness of urban planning land according to claim 2, characterized in that: The reading mark module further comprises a distance measuring probe (30) fixed on the measuring frame (5), the detection end of the distance measuring probe (30) facing the guide rail, a single chip microcomputer (31) is installed on the measuring vehicle (1), and the data end of the distance measuring probe (30) is data-connected to the single chip microcomputer (31).

4. The device for measuring the levelness of urban planning land according to claim 3, characterized in that: The pneumatic module comprises two transmission wheels (32) rotatably connected to a measuring frame (5), the two transmission wheels (32) being both transmission-connected to an annular marking belt (24), and a pump barrel (40) is mounted on the measuring frame (5).

5. The device for measuring the levelness of urban planning land according to claim 4, characterized in that: The inner wall of the pump barrel (40) is rotatably connected to a pump shaft, the output shaft end of the pump shaft is fixedly connected to a transmission wheel (32), a group of pump blades distributed in a circular array are installed on the pump shaft and at a position corresponding to the inner side of the pump barrel (40), an air duct (41) is fixedly connected between the pump barrel (40) and the air supply hose (3), and an air outlet pipe is connected to the pump barrel (40).

6. The device for measuring the levelness of urban planning land according to claim 5, characterized in that: The axis of the erasable pen (26) is parallel to the axis of the measuring rod (9), and the axis of the erasable pen (26) is perpendicular to the axis of the transmission wheel (32).

7. The device for measuring the levelness of urban planning land according to claim 6, characterized in that: The pigment marking component comprises a dyeing tube (33) fixed on a measuring frame (5), wherein the dyeing tube (33) stores a marking dye, an outer valve tube (34) is installed at the bottom of the dyeing tube (33), a group of outer valve holes (35) are opened in the middle of the outer valve tube (34), the outer valve holes (35) are communicated with the inner cavity of the dyeing tube (33), an inner valve tube (36) is slidably connected to the inner wall of the outer valve tube (34), a liquid outlet channel is fixedly opened inside the inner valve tube (36), two groups of inner valve holes (37) cooperating with the outer valve holes (35) are opened on the inner valve tube (36), the two groups of inner valve holes (37) are respectively arranged on both sides of the outer valve hole (35), and the inner valve tube (36) is fixedly connected to the measuring rod (9).

8. The device for measuring the levelness of urban planning land according to claim 7, characterized in that: A dropper (38) is slidably connected to the inner wall of the liquid outlet channel, a marking ring tube (39) is mounted on the measuring rod (9), a liquid outlet port of the dropper (38) is in communication with an inner cavity of the marking ring tube (39), and a group of dropper holes distributed in a circumferential array are formed on the bottom surface of the marking ring tube (39).

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