Planned and designed area measuring device

Abstract

The invention belongs to the field of land area measurement, and particularly relates to a planned and designed area measuring device which comprises a base, a sleeve box fixedly connected to the top of the base, an outer cover fixedly connected to the top of the sleeve box, a first rotating shaft rotationally connected to the inner wall of the outer cover, a winding roller fixedly connected to the outer wall of the first rotating shaft, and a ruler tape wound on the outer wall of the winding roller. Two third rotating shafts are fixedly connected to the inner wall of the outer cover, first guide wheels are rotationally connected to the outer walls of the two third rotating shafts, and one end of the ruler belt penetrates through the space between the two first guide wheels; according to the planned and designed area measuring device provided by the invention, through cooperation of a clamping block and a top block, when a measured tape is rolled, the tape is continuously knocked through a rotating plate, so that the tape is vibrated downwards, soil or stone fragments adhered to the back of the tape are conveniently shaken off, and through cooperation of an exhaust fan and a filter plate, the tape is conveniently taken off. Soil or stone chippings shaken off from the back of the tape can enter the sleeve box to be stored, and secondary pollution is avoided.

Description

Technical Field

[0001] The present invention belongs to the field of land area measurement, and specifically relates to an area measurement device for planning and design. Background Art

[0002] A tape measure, also known as a Lu Ban ruler, is a flexible measuring tool made of materials such as plastic, steel strip, and fabric. It is easy to carry and can measure the length of some curves. Before planning the land, it is necessary to measure the land for subsequent planning. At this time, a tape measure is needed as a measuring tool to measure the land.

[0003] In long-distance measurement, the tape of the tape measure is generally made of polyethylene fiber. When measuring the land with the tape measure, the tape will sag on the land due to its own gravity, resulting in the back of the tape being easily adhered with mud or stone debris. During the winding process of the tape, the mud or stone debris adhered to its back will cause wear to the attached tape surface and also affect the accuracy of the tape surface scale. Secondly, the material of the tape is relatively soft. As the pulled-out distance becomes longer and longer, the end of the tape will inevitably be skewed, affecting the measurement accuracy. In addition, the tape measure for long-distance measurement is generally wound thickly. As the tape is continuously pulled out, its thickness will gradually decrease, resulting in the tape showing an inclined state, which will also affect the measurement accuracy.

[0004] Therefore, the present invention provides an area measurement device for planning and design. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve the problems that when measuring the land with a tape measure, the tape will sag on the land due to its own gravity, resulting in the back of the tape being easily adhered with mud or stone debris. During the winding process of the tape, the mud or stone debris adhered to its back will cause wear to the attached tape surface and also affect the accuracy of the tape surface scale. Secondly, the material of the tape is relatively soft. As the pulled-out distance becomes longer and longer, the end of the tape will inevitably be skewed, affecting the measurement accuracy. In addition, the tape measure for long-distance measurement is generally wound thickly. As the tape is continuously pulled out, its thickness will gradually decrease, resulting in the tape showing an inclined state, which will also affect the measurement accuracy, the present invention proposes an area measurement device for planning and design.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A device for measuring the area of a planning and design described in the present invention includes a base. A sleeve box is fixedly connected to the top of the base. An outer cover is fixedly connected to the top of the sleeve box. A first rotating shaft is rotatably connected to the inner wall of the outer cover. A winding roller is fixedly connected to the outer wall of the first rotating shaft. A measuring tape is wound around the outer wall of the winding roller. Two third rotating shafts are fixedly connected to the inner wall of the outer cover. First guiding wheels are rotatably connected to the outer walls of the two third rotating shafts. One end of the measuring tape passes between the two first guiding wheels. One end of the first rotating shaft penetrates the outer cover and is fixedly connected to a crank. It further includes: A pressing-down component for keeping the measuring tape pulled out from the outer cover horizontal; A laser calibration component for straightening the end of the measuring tape; A vibration component for vibrating and cleaning the soil or stone debris adhered to the back of the measuring tape; A dust suction component for separating the measuring tape from the cleaned soil or stone debris.

[0007] Preferably, the pressing-down component includes a fixing plate fixedly installed on the outer wall of the outer cover. Two sliding shafts are symmetrically and slidably connected to the inner wall of the fixing plate. Limiting plates are fixedly connected to the outer walls of the two sliding shafts. Limiting blocks are fixedly connected to the tops of the two sliding shafts. An installation plate is fixedly connected to the bottoms of the two sliding shafts. A support frame is fixedly connected to the bottom of the installation plate. A fourth rotating shaft is fixedly connected to the inner wall of the support frame. A first pulley is rotatably connected to the outer wall of the fourth rotating shaft. A first spring is sleeved on the outer wall of the sliding shaft. The top of the first spring is fixedly connected to the fixing plate, and the bottom of the first spring is fixedly connected to the limiting plate.

[0008] Preferably, a fifth rotating shaft is fixedly connected to the inner wall of the base and directly below the first pulley. A second pulley is rotatably connected to the outer wall of the fifth rotating shaft. The measuring tape passes between the first pulley and the second pulley.

[0009] Preferably, one end of the measuring tape is fixedly connected to a first mounting frame. A sliding plate is fixedly connected to the bottom of the first mounting frame. Two second rotating shafts are symmetrically and fixedly connected to the inner wall of the sliding plate. Casters are rotatably connected to the outer walls of the two second rotating shafts. Magnets are fixedly connected to one side of the base and the sliding plate close to each other. The two magnets attract each other.

[0010] Preferably, the laser calibration component includes a second mounting frame fixedly installed on the top of the base. The measuring tape passes through the inside of the second mounting frame. A first laser lamp is fixedly connected to the outer wall of the second mounting frame. A second laser lamp is fixedly connected to the outer wall of the first mounting frame.

[0011] Preferably, the vibration assembly includes two side plates symmetrically and fixedly installed at the bottom of the fixed plate. A sixth rotating shaft is rotatably connected between the two side plates. A rotating plate is rotatably connected to the outer wall of the sixth rotating shaft. A limiting unit is arranged inside the rotating plate. A reverse adjustment assembly is arranged between the two side plates. The other end of the first rotating shaft penetrates through the outer cover and is fixedly connected to a first synchronous pulley. One end of the sixth rotating shaft penetrates through the side plate and is fixedly connected to a second synchronous pulley. The first synchronous pulley and the second synchronous pulley are drivingly connected by a synchronous belt arranged therebetween.

[0012] Preferably, the limiting unit includes a cavity opened inside the rotating plate. Top blocks are fixedly connected to both the top and bottom inner walls of the cavity. Two clamping blocks are symmetrically and slidably connected to the inner wall of the sixth rotating shaft. One side of the clamping block extends into the cavity and is arranged as a symmetric inclined surface. The other side of the clamping block is fixedly connected to a second spring, and the second spring is fixedly connected to the sixth rotating shaft.

[0013] Preferably, the reverse adjustment assembly includes a seventh rotating shaft fixedly installed between the two side plates. A limiting frame is rotatably connected to the outer wall of the seventh rotating shaft. A top plate is fixedly connected between the two side plates and below the limiting frame.

[0014] Preferably, two groups of eighth rotating shafts are symmetrically and fixedly connected to the inner wall of the second mounting frame. A second guide wheel is rotatably connected to the outer wall of the eighth rotating shaft. An inclined groove is opened on the outer wall of the second guide wheel.

[0015] Preferably, an air inlet is opened on the outer wall of the sleeve box. A filter plate is fixedly connected to the inner wall of the sleeve box. An exhaust fan is fixedly connected to the top of the base. The input end of the exhaust fan is connected to an air inlet pipe. One end of the air inlet pipe extends into the sleeve box. The output end of the exhaust fan is connected to an air outlet pipe. Two guide plates are symmetrically and fixedly connected to the outer wall of the sleeve box with the air inlet as the center. Both of the two guide plates are arranged as arcs.

[0016] The beneficial effects of the present invention are as follows: 1. For the area measuring device for planning and design of the present invention, through the cooperation of the clamping block and the top block, when the tape measure after measurement is wound up, the rotating plate continuously knocks on the tape measure, causing the tape measure to vibrate downward, facilitating the shaking off of the soil or stone debris adhered to the back of the tape measure. Moreover, through the cooperation of the exhaust fan and the filter plate, the soil or stone debris shaken off from the back of the tape measure enters the sleeve box for storage, avoiding secondary pollution.

[0017] 2. For an area measurement device for planning and design according to the present invention, as the measuring tape is continuously pulled out, the measuring tape wound around the winding roller becomes thinner and thinner. Through the first spring provided, the first pulley presses down on the measuring tape, causing the measuring tape to pass between the first pulley and the second pulley. In cooperation with the moving slide plate, the measuring tape is kept horizontally pulled out to avoid tilting.

[0018] 3. For an area measurement device for planning and design according to the present invention, the first laser lamp emits red light and the second laser lamp emits green light. When the red light and the green light intersect, in the overlapping area, yellow light appears due to color mixing, which is convenient for construction workers to judge that the measuring tape is not skewed. When there is a deviation between the red light and the green light, it means that the measuring tape is skewed and the position of the slide plate needs to be adjusted in time.

[0019] 4. For an area measurement device for planning and design according to the present invention, when there is a land bulge under the measuring tape, the red light and the green light are blocked, which is convenient for construction workers to discover in time. At this time, the positions of the base and the slide plate need to be adjusted to make the measuring tape avoid the land bulge. When the land bulge cannot be avoided, to ensure the measurement accuracy, the base and the slide plate need to be lifted synchronously. It is more difficult to keep the base and the slide plate horizontal in the suspended state. Similarly, the position of the measuring tape is calibrated by the first laser lamp and the second laser lamp provided, so that the measurement accuracy can be ensured in different environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 is a three-dimensional view of the nested box and the outer cover of the present invention in cooperation; Figure 2 is a three-dimensional view of the first synchronous wheel and the second synchronous wheel of the present invention in cooperation; Figure 3 is an exploded view of the mounting plate and the measuring tape of the present invention in cooperation; Figure 4 is a cross-sectional view of the measuring tape and the outer cover of the present invention in cooperation; Figure 5 is an exploded view of the rotating plate and the sixth rotating shaft of the present invention in cooperation; Figure 6 is a three-dimensional view of the exhaust fan and the nested box of the present invention in cooperation; Figure 7 is a three-dimensional view of the rotating plate and the limiting frame of the present invention in cooperation; Figure 8 is the present invention Figure 3 an enlarged view of part A in; Figure 9 is the present invention Figure 4 an enlarged view of part B in; Figure 10 is the present inventionFigure 4 Enlarged view at position C in the figure; Figure 11 This is the present invention Figure 7 Enlarged view at position D in the figure.

[0022] In the figure: 1, base; 2, nested box; 3, outer cover; 4, first rotating shaft; 5, winding roller; 6, measuring tape; 7, crank; 8, first mounting bracket; 9, sliding plate; 10, second rotating shaft; 11, caster wheel; 12, magnet; 13, third rotating shaft; 14, first guiding wheel; 15, fixing plate; 16, sliding shaft; 17, limiting block; 18, first spring; 19, limiting plate; 20, mounting plate; 21, support frame; 22, fourth rotating shaft; 23, first pulley; 24, fifth rotating shaft; 25, second pulley; 26, side plate; 27, sixth rotating shaft; 28, rotating plate; 29, seventh rotating shaft; 30, limiting frame; 31, top plate; 32, cavity; 33, top block; 34, second spring; 35, clamping block; 36, first synchronous pulley; 37, synchronous belt; 38, second synchronous pulley; 39, second mounting bracket; 40, first laser lamp; 41, second laser lamp; 42, eighth rotating shaft; 43, second guiding wheel; 44, air inlet; 45, filter plate; 46, exhaust fan; 47, intake duct; 48, outlet duct; 49, deflector plate. Detailed implementation manners

[0023] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0024] As Figures 1 to 11As shown in the figure, the present invention provides a technical solution, an area measurement device for planning and design, including a base 1. A sleeve box 2 is fixedly connected to the top of the base 1. An outer cover 3 is fixedly connected to the top of the sleeve box 2. A first rotating shaft 4 is rotatably connected to the inner wall of the outer cover 3. A winding roller 5 is fixedly connected to the outer wall of the first rotating shaft 4. A measuring tape 6 is wound around the outer wall of the winding roller 5. Two third rotating shafts 13 are fixedly connected to the inner wall of the outer cover 3. A first guide wheel 14 is rotatably connected to the outer walls of both of the two third rotating shafts 13. One end of the measuring tape 6 passes between the two first guide wheels 14. One end of the first rotating shaft 4 penetrates through the outer cover 3 and is fixedly connected to a crank 7. It further includes: a pressing component for keeping the measuring tape 6 pulled out from the outer cover 3 horizontal; a laser calibration component for straightening the end of the measuring tape 6; a vibration component for vibrating and cleaning the soil or stone debris adhered to the back of the measuring tape 6; a dust suction component for separating the measuring tape 6 from the cleaned soil or stone debris. The pressing component includes a fixing plate 15. The fixing plate 15 is fixedly installed on the outer wall of the outer cover 3. Two sliding shafts 16 are symmetrically and slidably connected to the inner wall of the fixing plate 15. Limiting plates 19 are fixedly connected to the outer walls of both of the two sliding shafts 16. Limiting blocks 17 are fixedly connected to the tops of both of the two sliding shafts 16. An installation plate 20 is fixedly connected to the bottoms of the two sliding shafts 16. A support frame 21 is fixedly connected to the bottom of the installation plate 20. A fourth rotating shaft 22 is fixedly connected to the inner wall of the support frame 21. A first pulley 23 is rotatably connected to the outer wall of the fourth rotating shaft 22. A first spring 18 is sleeved on the outer wall of the sliding shaft 16. The top of the first spring 18 is fixedly connected to the fixing plate 15. The bottom of the first spring 18 is fixedly connected to the limiting plate 19. A fifth rotating shaft 24 is fixedly connected to the inner wall of the base 1 and is located directly below the first pulley 23. A second pulley 25 is rotatably connected to the outer wall of the fifth rotating shaft 24. The measuring tape 6 passes between the first pulley 23 and the second pulley 25. One end of the measuring tape 6 is fixedly connected to a first mounting bracket 8. A sliding plate 9 is fixedly connected to the bottom of the first mounting bracket 8. Two second rotating shafts 10 are symmetrically and fixedly connected to the inner wall of the sliding plate 9. A caster 11 is rotatably connected to the outer walls of both of the two second rotating shafts 10. Magnets 12 are fixedly connected to one side of the base 1 and the sliding plate 9 close to each other. The two magnets 12 attract each other.

[0025] Through the above technical solution, when measuring the land, place the base 1 on the land, pull the slide plate 9 to move, separate the two magnets 12. After the slide plate 9 moves, it drives the first mounting bracket 8 to move, so that the tape 6 is pulled out from the outer cover 3. When the slide plate 9 moves, through the provided casters 11, the slide plate 9 moves smoothly. Through the two provided first guide wheels 14, the pulled tape 6 is guided, and through the rotation of the first guide wheels 14, the friction with the tape 6 is reduced, and the tape 6 is prevented from rubbing against the outer cover 3. As the tape 6 is continuously pulled out, the tape 6 wound around the winding roller 5 becomes thinner and thinner. Through the provided first spring 18, the first pulley 23 presses down on the tape 6, so that the tape 6 passes between the first pulley 23 and the second pulley 25. Cooperating with the moving slide plate 9, the tape 6 is kept horizontally pulled out to avoid tilting. By setting the second pulley 25 to contact the back surface of the tape 6, when the tape 6 is pulled out, the second pulley 25 rotates accordingly to avoid hard friction with the tape 6.

[0026] Specifically, the laser calibration assembly includes a second mounting bracket 39, the second mounting bracket 39 is fixedly installed on the top of the base 1, the tape 6 passes through the inside of the second mounting bracket 39, and a first laser lamp 40 is fixedly connected to the outer wall of the second mounting bracket 39, and a second laser lamp 41 is fixedly connected to the outer wall of the first mounting bracket 8.

[0027] Through the above technical solution, when moving the slide plate 9 to the position to be measured, control the first laser lamp 40 to emit red light and control the second laser lamp 41 to emit green light. When the red light and the green light intersect, in the overlapping area, yellow light appears due to color mixing, which is convenient for the construction personnel to judge that the tape 6 is not skewed. When there is a deviation between the red light and the green light, it means that the tape 6 is skewed and the position of the slide plate 9 needs to be adjusted in time. And when there is a land bulge under the tape 6, the red light and the green light are blocked, which is convenient for the construction personnel to discover in time. At this time, the positions of the base 1 and the slide plate 9 need to be adjusted to make the tape 6 avoid the land bulge. When the land bulge cannot be avoided, to ensure the measurement accuracy, the base 1 and the slide plate 9 need to be lifted synchronously. It is more difficult to keep the base 1 and the slide plate 9 in a horizontal state in the suspended state. Similarly, through the provided first laser lamp 40 and the second laser lamp 41, the position of the tape 6 is helped to be calibrated, so that the measurement accuracy can be ensured in different environments during measurement.

[0028] Specifically, the vibration assembly includes two side plates 26, which are symmetrically and fixedly installed at the bottom of the fixed plate 15. A sixth rotating shaft 27 is rotatably connected between the two side plates 26. A rotating plate 28 is rotatably connected to the outer wall of the sixth rotating shaft 27. A limiting unit is arranged inside the rotating plate 28. A reverse adjustment assembly is arranged between the two side plates 26. The other end of the first rotating shaft 4 penetrates through the outer cover 3 and is fixedly connected to a first synchronous pulley 36. One end of the sixth rotating shaft 27 penetrates through the side plate 26 and is fixedly connected to a second synchronous pulley 38. The first synchronous pulley 36 and the second synchronous pulley 38 are connected by a synchronous belt 37 arranged therebetween; the limiting unit includes a cavity 32, which is opened inside the rotating plate 28. Top blocks 33 are fixedly connected to both the top and bottom of the inner wall of the cavity 32. Two clamping blocks 35 are symmetrically and slidably connected to the inner wall of the sixth rotating shaft 27. One side of the clamping block 35 extends into the cavity 32 and is arranged as a symmetric inclined surface. The other side of the clamping block 35 is fixedly connected to a second spring 34, and the second spring 34 is fixedly connected to the sixth rotating shaft 27; the reverse adjustment assembly includes a seventh rotating shaft 29, which is fixedly installed between the two side plates 26. A limiting frame 30 is rotatably connected to the outer wall of the seventh rotating shaft 29. A top plate 31 is fixedly connected between the two side plates 26 and below the limiting frame 30.

[0029] Through the above technical solution, when the measuring tape 6 is pulled out from the outer cover 3, it drives the winding roller 5 to rotate counterclockwise, causing the first rotating shaft 4 to rotate counterclockwise, driving the first synchronous pulley 36 to rotate counterclockwise. Through the arranged synchronous belt 37, it drives the second synchronous pulley 38 to rotate counterclockwise, causing the sixth rotating shaft 27 to rotate counterclockwise. While the sixth rotating shaft 27 rotates counterclockwise, it drives the two clamping blocks 35 to rotate counterclockwise. When the clamping block 35 rotates to the position of the top block 33, under the action of the second spring 34, the inclined surface of the clamping block 35 abuts tightly against the top block 33. Thus, as the clamping block 35 rotates counterclockwise, it drives the top block 33 to rotate counterclockwise, causing the rotating plate 28 to rotate counterclockwise. When the rotating plate 28 rotates to the position of the limiting frame 30, due to the limitation of the top plate 31, the limiting frame 30 cannot rotate counterclockwise. Thus, the rotating plate 28 cannot continue to rotate counterclockwise, and further the position of the top block 33 is fixed. At this time, as the sixth rotating shaft 27 rotates counterclockwise, under the extrusion of the top block 33, the clamping block 35 moves into the sixth rotating shaft 27, compressing the second spring 34. When the measurement is completed and the measuring tape 6 is retracted, the crank 7 is rotated clockwise, driving the first rotating shaft 4 to rotate clockwise, causing the winding roller 5 to rotate clockwise. Similarly, it drives the sixth rotating shaft 27 to rotate clockwise. Through the cooperation of the clamping block 35 and the top block 33, the rotating plate 28 rotates clockwise. When the rotating plate 28 rotates to the position of the limiting frame 30, it loses the limitation of the top plate 31 and pushes the limiting frame 30 to swing upward. Thus, reciprocatingly, as the measuring tape 6 is retracted, the rotating plate 28 rotates clockwise. When the end of the rotating plate 28 rotates to the lower side, it can strike the measuring tape 6, causing the measuring tape 6 to vibrate downward, facilitating the shaking off of the soil or stone debris adhered to the back of the measuring tape 6.

[0030] Specifically, two groups of eighth rotating shafts 42 are symmetrically and fixedly connected to the inner wall of the second mounting bracket 39. The outer wall of the eighth rotating shaft 42 is rotatably connected to a second guiding wheel 43, and an inclined groove is formed on the outer wall of the second guiding wheel 43.

[0031] Through the above technical solution, the retracted measuring tape 6 passes between the inclined grooves on the outer walls of the two second guiding wheels 43. Through the guiding of the two second guiding wheels 43, the measuring tape 6 is kept centered, preventing the measuring tape 6 from being skewed during winding and thus unable to be neatly wound.

[0032] Specifically, an air inlet 44 is formed on the outer wall of the sleeve box 2. A filter plate 45 is fixedly connected to the inner wall of the sleeve box 2. A suction fan 46 is fixedly connected to the top of the base 1. The input end of the suction fan 46 is connected to an air inlet pipe 47, one end of the air inlet pipe 47 extends into the interior of the sleeve box 2. The output end of the suction fan 46 is connected to an air outlet pipe 48. Two flow guiding plates 49 are symmetrically and fixedly connected to the outer wall of the sleeve box 2 with the air inlet 44 as the center, and both of the two flow guiding plates 49 are arranged in an arc shape.

[0033] Through the above technical solution, by pressing down the first pulley 23 with the first spring 18, a resistance is applied to the wound measuring tape 6, so that the measuring tape 6 can be tightly wound on the winding roller 5. The soil or stone debris shaken off from the back of the measuring tape 6 falls on the base 1. The suction fan 46 is started to draw air. Through the two flow guiding plates 49 provided, the gas is made more concentrated, facilitating the suction of the soil or stone debris on the base 1 into the sleeve box 2 along the air inlet 44. Through the blockage of the filter plate 45, the soil or stone debris drawn into the sleeve box 2 stays in the sleeve box 2, and the excess air is discharged from the air outlet pipe 48. Thus, the soil or stone debris shaken off from the back of the measuring tape 6 is separated from the measuring tape 6, avoiding secondary pollution. As the measuring tape 6 is wound, the sliding plate 9 moves back accordingly. Through the mutual attraction of the two first magnets 12, the sliding plate 9 is fixed on the base 1, preventing the wound measuring tape 6 from extending out randomly.

[0034] During use, place the base 1 on the ground, pull the sliding plate 9 to move, separate the two magnets 12. After the sliding plate 9 moves, it drives the first mounting bracket 8 to move, so that the tape 6 is pulled out from the outer cover 3. While the sliding plate 9 moves, through the provided casters 11, the sliding plate 9 moves smoothly. Through the two provided first guide wheels 14, the pulled-out tape 6 is guided, and through the rotation of the first guide wheels 14, the friction with the tape 6 is reduced, and the tape 6 is prevented from rubbing against the outer cover 3. As the tape 6 is continuously pulled out, the tape 6 wound on the winding roller 5 becomes thinner and thinner. Through the provided first spring 18, the first pulley 23 presses down on the tape 6, so that the tape 6 passes between the first pulley 23 and the second pulley 25. Cooperating with the moving sliding plate 9, the tape 6 is kept horizontal when being pulled out, avoiding tilting. Through the second pulley 25 contacting the back surface of the tape 6, when the tape 6 is pulled out, the second pulley 25 rotates accordingly, avoiding hard friction with the tape 6. When the tape 6 is pulled out from the outer cover 3, it drives the winding roller 5 to rotate counterclockwise, makes the first rotating shaft 4 rotate counterclockwise, drives the first synchronous wheel 36 to rotate counterclockwise. Through the provided synchronous belt 37, it drives the second synchronous wheel 38 to rotate counterclockwise, makes the sixth rotating shaft 27 rotate counterclockwise. While the sixth rotating shaft 27 rotates counterclockwise, it drives the two clamping blocks 35 to rotate counterclockwise. When the clamping block 35 rotates to the position of the top block 33, under the action of the second spring 34, the inclined surface of the clamping block 35 abuts tightly against the top block 33. Thus, as the clamping block 35 rotates counterclockwise, it drives the top block 33 to rotate counterclockwise, makes the rotating plate 28 rotate counterclockwise. When the rotating plate 28 rotates to the position of the limiting frame 30, due to the limitation of the top plate 31, the limiting frame 30 cannot rotate counterclockwise. Thus, the rotating plate 28 cannot continue to rotate counterclockwise, and further the position of the top block 33 is fixed. At this time, as the sixth rotating shaft 27 rotates counterclockwise, under the extrusion of the top block 33, the clamping block 35 moves towards the inside of the sixth rotating shaft 27, compressing the second spring 34. When moving the sliding plate 9 to the position to be measured, control the first laser lamp 40 to emit red light, control the second laser lamp 41 to emit green light. When the red light and the green light intersect, in the overlapping area, it presents yellow light due to color mixing, which is convenient for construction workers to judge that the tape 6 is not skewed. When there is a deviation between the red light and the green light, it means that the tape 6 is skewed and the position of the sliding plate 9 needs to be adjusted in time. And when there is a land bulge under the tape 6, the red light and the green light are blocked, which is convenient for construction workers to discover in time. At this time, the positions of the base 1 and the sliding plate 9 need to be adjusted to make the tape 6 avoid the land bulge. When the land bulge cannot be avoided, to ensure the measurement accuracy, the base 1 and the sliding plate 9 need to be lifted synchronously. It is more difficult to keep the base 1 and the sliding plate 9 in a horizontal state in the suspended state. Similarly, through the provided first laser lamp 40 and the second laser lamp 41, it helps to calibrate the position of the tape 6. Thus, the measurement accuracy can be guaranteed when measuring in different environments. When the measurement is completed and the tape 6 is retracted, through the pressing of the first spring 18 on the first pulley 23, a resistance is applied to the retracted tape 6.Thus, the tape 6 can be tightly wound on the winding roller 5. Rotate the crank 7 clockwise to drive the first rotating shaft 4 to rotate clockwise, so that the winding roller 5 rotates clockwise to wind the tape 6. The retracted tape 6 passes between the inclined grooves on the outer walls of the two groups of second guide wheels 43. Through the guidance of the two groups of second guide wheels 43, the tape 6 is kept centered, avoiding the tape 6 from being unable to be neatly wound due to skewing during winding. Similarly, when the winding roller 5 rotates clockwise, it drives the sixth rotating shaft 27 to rotate clockwise. Through the cooperation of the clamping block 35 and the top block 33, the rotating plate 28 rotates clockwise. When the rotating plate 28 rotates to the position of the limit frame 30, it loses the limit of the top plate 31 and pushes the limit frame 30 to swing upward. Thus, as the tape 6 is retracted, the rotating plate 28 rotates clockwise. When the end of the rotating plate 28 rotates to the lower side, it can strike the tape 6 to make the tape 6 vibrate downward, facilitating the vibration and falling of the soil or stone debris adhered to the back of the tape 6. The soil or stone debris falling from the back of the tape 6 lands on the base 1. At the same time, start the exhaust fan 46 to draw air. Through the two deflector plates 49 provided, the gas is made more concentrated, facilitating the extraction of the soil or stone debris on the base 1 along the air inlet 44 into the sleeve box 2. Through the blockage of the filter plate 45, the soil or stone debris drawn into the sleeve box 2 stays in the sleeve box 2, and the excess air is discharged from the air outlet pipe 48. Thus, the soil or stone debris vibrated and fallen from the back of the tape 6 is separated from the tape 6, avoiding secondary pollution. As the tape 6 is wound, the sliding plate 9 moves back accordingly. Through the mutual attraction of the two first magnets 12, the sliding plate 9 is fixed on the base 1 to prevent the wound tape 6 from protruding randomly.,

[0035] The above front, back, left, right, up, and down are all based on the Figure 1 in the attached drawings of the specification. Taking the perspective of the person observing as the standard, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.,

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present invention.,

[0037] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An area measurement device for planning and design, comprising a base (1), a sleeve box (2) is fixedly connected to the top of the base (1), an outer cover (3) is fixedly connected to the top of the sleeve box (2), a first rotating shaft (4) is rotatably connected to the inner wall of the outer cover (3), a winding roller (5) is fixedly connected to the outer wall of the first rotating shaft (4), a measuring tape (6) is wound around the outer wall of the winding roller (5), two third rotating shafts (13) are fixedly connected to the inner wall of the outer cover (3), a first guiding wheel (14) is rotatably connected to the outer wall of each of the two third rotating shafts (13), one end of the measuring tape (6) passes between the two first guiding wheels (14), one end of the first rotating shaft (4) penetrates through the outer cover (3) and is fixedly connected to a crank (7), characterized in that, It further includes: A pressing-down component for keeping the measuring tape (6) pulled out from the outer cover (3) horizontal; A laser calibration component for straightening the end of the measuring tape (6); A vibration component for vibrating and cleaning the soil or stone debris adhered to the back of the measuring tape (6); A dust suction component for separating the measuring tape (6) from the cleaned soil or stone debris.

2. The area measurement device for planning and design according to claim 1, characterized in that, The pressing-down component includes a fixing plate (15), the fixing plate (15) is fixedly installed on the outer wall of the outer cover (3), two sliding shafts (16) are symmetrically and slidably connected to the inner wall of the fixing plate (15), limiting plates (19) are fixedly connected to the outer walls of the two sliding shafts (16), limiting blocks (17) are fixedly connected to the tops of the two sliding shafts (16), an installation plate (20) is fixedly connected to the bottoms of the two sliding shafts (16), a support frame (21) is fixedly connected to the bottom of the installation plate (20), a fourth rotating shaft (22) is fixedly connected to the inner wall of the support frame (21), a first pulley (23) is rotatably connected to the outer wall of the fourth rotating shaft (22), a first spring (18) is sleeved on the outer wall of the sliding shaft (16), the top of the first spring (18) is fixedly connected to the fixing plate (15), and the bottom of the first spring (18) is fixedly connected to the limiting plate (19).

3. The area measuring device for planning and design according to claim 2, characterized in that, A fifth rotating shaft (24) is fixedly connected to the inner wall of the base (1) and directly below the first pulley (23), a second pulley (25) is rotatably connected to the outer wall of the fifth rotating shaft (24), and the measuring tape (6) passes between the first pulley (23) and the second pulley (25).

4. The area measuring device for planning and design according to claim 3, characterized in that, One end of the measuring tape (6) is fixedly connected to a first mounting bracket (8), a sliding plate (9) is fixedly connected to the bottom of the first mounting bracket (8), two second rotating shafts (10) are symmetrically and fixedly connected to the inner wall of the sliding plate (9), casters (11) are rotatably connected to the outer walls of the two second rotating shafts (10), magnets (12) are fixedly connected to one side of the base (1) and the sliding plate (9) close to each other, and the two magnets (12) attract each other.

5. The area measuring device for planning and design according to claim 4, wherein The laser calibration component includes a second mounting bracket (39), the second mounting bracket (39) is fixedly installed on the top of the base (1), the measuring tape (6) passes through the inside of the second mounting bracket (39), a first laser lamp (40) is fixedly connected to the outer wall of the second mounting bracket (39), and a second laser lamp (41) is fixedly connected to the outer wall of the first mounting bracket (8).

6. The area measuring device for planning and design according to claim 5, characterized in that, The vibration assembly comprises two side plates (26), the two side plates (26) are symmetrically fixedly mounted on the bottom of the fixed plate (15), a sixth rotating shaft (27) is rotatably connected between the two side plates (26), an outer wall of the sixth rotating shaft (27) is rotatably connected to a rotating plate (28), a limiting unit is arranged inside the rotating plate (28), a reverse adjustment assembly is arranged between the two side plates (26), the other end of the first rotating shaft (4) passes through the outer cover (3) and is fixedly connected to a first synchronous wheel (36), one end of the sixth rotating shaft (27) passes through the side plate (26) and is fixedly connected to a second synchronous wheel (38), and the first synchronous wheel (36) and the second synchronous wheel (38) are connected in transmission via a synchronous belt (37).

7. An area measuring device for planning and design according to claim 6, characterized in that, The limiting unit comprises a cavity (32), the cavity (32) being opened inside the rotating plate (28), the top and bottom of the inner wall of the cavity (32) being fixedly connected to a top block (33), the inner wall of the sixth rotating shaft (27) being symmetrically slidably connected to two clamping blocks (35), one side of the clamping block (35) extending into the interior of the cavity (32) and being arranged as a symmetrical inclined surface, the other side of the clamping block (35) being fixedly connected to a second spring (34), and the second spring (34) being fixedly connected to the sixth rotating shaft (27).

8. The area measuring device for planning and design according to claim 7, characterized in that, The reverse adjustment assembly comprises a seventh rotating shaft (29), the seventh rotating shaft (29) being fixedly mounted between the two side plates (26), the outer wall of the seventh rotating shaft (29) being rotatably connected to a limiting frame (30), and a top plate (31) being fixedly connected between the two side plates (26) and below the limiting frame (30).

9. The area measuring device for planning and design according to claim 8, wherein, Two groups of eighth rotating shafts (42) are symmetrically fixedly connected to the inner wall of the second mounting frame (39), and a second guide wheel (43) is rotatably connected to the outer wall of the eighth rotating shaft (42). An oblique groove is formed on the outer wall of the second guide wheel (43).

10. The area measuring device for planning and design according to claim 9, characterized in that, An air inlet (44) is provided on the outer wall of the sleeve (2), a filter plate (45) is fixedly connected to the inner wall of the sleeve (2), an exhaust fan (46) is fixedly connected to the top of the base (1), an input end of the exhaust fan (46) is connected to an air inlet pipe (47), one end of the air inlet pipe (47) extends into the interior of the sleeve (2), an output end of the exhaust fan (46) is connected to an air outlet pipe (48), and two guide plates (49) are symmetrically fixedly connected to the outer wall of the sleeve (2) with the air inlet (44) as the center, and the two guide plates (49) are both arranged in an arc shape.

Images