A terrain flatness measuring device for land planning space

Abstract

The invention discloses a terrain flatness measuring device for land planning space, relates to the technical field of terrain surveying, comprises a total station body, the total station body is set up on a reference point of the measuring work, a laser prism, the bottom surface of the laser prism is provided with a mounting frame, the mounting frame is set up on the target point of the measuring work, an auxiliary mechanism, the auxiliary mechanism comprises a frame assembly, a light pipe assembly and a base assembly, the frame assembly comprises: a support frame, the upper surface of the support frame is provided with a connecting platform, the upper surface of the connecting platform is fixedly installed with an engaging ruler disk, the light pipe assembly comprises: two light-transmitting glass tubes, the two light-transmitting glass tubes are respectively arranged on the side surfaces opposite to each other of two connecting plates, the base assembly comprises: a sliding frame, the sliding frame is fixedly installed on the side surface of the calibration section close to the shielding object, in this scheme, by providing the auxiliary mechanism, the phenomenon that the total station body needs to be moved for observation multiple times is reduced, and the reliability and accuracy of the measurement are improved.

Description

Technical Field

[0001] The invention relates to the technical field of topographic surveying, and in particular to a terrain flatness measuring device for land planning space. Background Art

[0002] In the field of terrain flatness measurement for land planning space, the total station, as a high-precision, multi-functional measuring instrument, plays a vital role. The total station integrates multiple functions such as distance measurement, angle measurement and data processing, and can realize accurate measurement of terrain and real-time calculation of three-dimensional coordinates.

[0003] In the existing land planning space terrain flatness measurement work, traditional technology mainly relies on the cooperation of total station and laser prism to measure distance and height difference. However, this method still has some inconveniences in actual operation, especially in land planning space work, where staff need to carry out measurement work in a variety of complex and changeable terrain environments. Obstacles such as trees, bushes and swamp vegetation often block certain target points, making it difficult for the total station to directly aim at the laser prism for measurement, which not only increases the difficulty of measurement, but also frequent adjustments to the position of the total station may lead to data errors, affecting the accuracy of the measurement results. Summary of the invention

[0004] The purpose of the present invention is to provide a terrain flatness measuring device for land planning space to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a terrain flatness measurement device for land planning space, comprising:

[0006] A total station body, wherein the bottom surface of the total station body is provided with bottom support legs, the total station body is erected on a reference point of the measurement work, a rotatable rotating eyepiece is provided at the center of the total station body, and a laser port is fixedly installed on the upper surface of the rotating eyepiece;

[0007] A laser prism, wherein a mounting frame is provided on the bottom surface of the laser prism, and the mounting frame is mounted on a target point of the measurement work;

[0008] Auxiliary mechanism, the auxiliary mechanism includes a frame assembly, a light pipe assembly and a base assembly, the frame assembly includes: a support frame, the support frame is mounted on the side of the shielding object between the rotating eyepiece and the laser prism, the upper surface of the support frame is provided with a connecting platform, a side surface of the connecting platform is provided with a rotatable first laser line marker, the upper surface of the connecting platform is fixedly installed with a meshing gear disk, the two side surfaces of the meshing gear disk are respectively meshed with a rotatable connecting gear, and the upper surface of the connecting gear is fixedly installed with a connecting plate;

[0009] The light tube assembly comprises: two light-transmitting glass tubes, the two light-transmitting glass tubes are respectively arranged on the opposite side surfaces of two connecting plates, the end of the light-transmitting glass tube away from the light-transmitting branch tube is also provided with a calibration section, the surface of the two connecting plates away from the light-transmitting glass tube is provided with a light-transmitting branch tube, one end of the light-transmitting branch tube is connected to the light-transmitting glass tube, and the connection can be rotated, the other end of the two light-transmitting branch tubes is respectively connected with a rotating sphere, the surface of one side of the rotating sphere is provided with a prompt hemisphere, and a light-isolating sheet is provided between the two prompt hemispheres;

[0010] The base assembly includes: a sliding frame, which is fixedly mounted on a side surface of the calibration section close to the obstruction, a slidable sliding block is arranged at the center of the sliding frame, a sponge pad is arranged on a side surface of the sliding block close to the obstacle, and a clamping knob is arranged on one side surface of the sliding block.

[0011] Furthermore, a storage cavity is opened inside the connecting plate, a slidable extended light shielding plate is arranged inside the storage cavity, a paddle is fixedly mounted on the upper surface of the extended light shielding plate, and a handle for driving the connecting gear to rotate is fixedly mounted on one side surface of the connecting plate.

[0012] Furthermore, a lighting opening is provided on one side surface of the calibration section, a cross-sectional observation port is provided at one end of the calibration section, a central sensitive light line is provided at the inner center of the calibration section, a light-isolating tube is provided at one end of the central sensitive light line, the light-isolating tube is located at the center of the cross-sectional observation port, and a photosensitive ball is provided at the end of the light-isolating tube.

[0013] Furthermore, the base assembly also includes a bonding substrate, and the upper and lower surfaces of the sliding frame are each provided with a bonding substrate, the surface of the bonding substrate facing away from the shielding object is provided with photosensitive patterns, and a rotating shaft is provided at the connection between the bonding substrate and the sliding frame.

[0014] Furthermore, a storage bottom pad is fixedly installed on one side surface of the bonding substrate, an observation mirror for observing the cross-sectional observation port is also provided on one side surface of the bonding substrate, and a retractable supporting bottom rod is provided on the inner side surface of the bonding substrate located below the sliding frame.

[0015] Furthermore, the auxiliary mechanism also includes a matching component, which includes: two movable frames, the two movable frames are respectively arranged on the two side surfaces of the laser port, a second laser marker is arranged on the upper surface of the laser port, a control switch is arranged on one side surface of the two second laser markers, and a rotatable handle is connected between the two second laser markers.

[0016] Furthermore, the mating component also includes: a calibrated tube, which is a hollow tubular structure, and is fixedly mounted on the bottom surface of the laser prism. The surface of the calibrated tube is provided with scale marks, and the lowest scale of the calibrated tube is the distance from the bottom surface to the current height. The surface of the calibrated tube is provided with a liftable lifting slide, and a rotatable third laser marker is provided on one side surface of the lifting slide, and a scale plate for aligning with the scale is provided on one side surface of the third laser marker.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In this scheme, by providing a frame assembly and a support frame, it can be stably mounted on the side of the obstruction between the rotating eyepiece and the laser prism, providing a stable support platform for subsequent measurement work. At the same time, the first laser line marker can complete the measurement data calculation by laser line joint under special circumstances. In addition, through the cooperation of the meshing gear plate and the connecting gear, the position and angle of the connecting plate can be easily adjusted, so that the light pipe assembly can be closely attached to both sides of the obstruction, effectively preventing the misjudgment of the laser and further improving the stability of the measurement process;

[0019] 2. In this scheme, by providing a light tube assembly, the light-transmitting glass tube and the light-transmitting branch tube, the laser beam can be efficiently transmitted, and the stability and accuracy of the laser beam during the transmission process can be ensured. The hemisphere can be used to enable the measurement personnel to visually observe the transmission direction of the laser beam, so as to facilitate the subsequent measurement work. The setting of the light-isolating sheet and the calibration section further improves the measurement accuracy. By calibrating the laser beam through the calibration section, it can be ensured that the laser beam accurately hits the target point, so as to obtain accurate measurement data. In addition, through the central sensitive light line and the photosensitive ball, the measurement personnel can judge whether the laser beam accurately hits the lighting opening by observing whether the photosensitive ball is lit, thereby improving the reliability and accuracy of the measurement.

[0020] 3. In this solution, by providing a base assembly, a sliding frame and a sliding block, the auxiliary mechanism can flexibly adapt to obstructions with different degrees of surface unevenness, providing stable support for the light tube assembly, and the position of the sliding block can be fixed by introducing a clamping knob to ensure the stability of the base assembly during the measurement process. The photosensitive texture on the wire-bonding substrate can clearly display the laser signal, which is convenient for the measurement personnel to make adjustments. By observing the mirror, the measurement personnel can observe the laser penetration of the cross-section observation port without approaching the obstruction, further improving the safety and convenience of the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the auxiliary mechanism structure of the present invention;

[0023] Figure 3 It is a rear view structural schematic diagram of the auxiliary mechanism of the present invention;

[0024] Figure 4 It is a schematic diagram of the calibration section structure of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the rotating eyepiece of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the base assembly of the present invention;

[0027] Figure 7 It is a schematic diagram of the auxiliary mechanism structure of the present invention;

[0028] Figure 8 For the present invention Figure 2 Enlarged view of point A in the middle.

[0029] In the figure: 1. Total station body; 2. Bottom support legs; 3. Rotating eyepiece; 4. Connecting platform; 5. Support frame; 6. Marking substrate; 7. Translucent glass tube; 8. Laser prism; 9. Lifting slide; 10. Scale tube; 11. Placement frame; 12. Support bottom rod; 13. Calibration section; 14. Lighting opening; 15. Sponge pad; 16. Sliding block; 17. Sliding frame; 18. Storage bottom pad; 19. Photosensitive texture; 20. Observation mirror; 21. The first laser marking instrument ; 22. Clamping knob; 23. Light-isolating tube; 24. Central sensitive line; 25. Cross-section observation port; 26. Photosensitive ball; 27. Laser port; 28. Movable frame; 29. ​​Second laser marker; 30. Pull handle; 31. Control switch; 32. Third laser marker; 33. Scale plate; 34. Engaging gear plate; 35. Connecting gear; 36. Connecting plate; 37. Extended light shielding plate; 38. Light transmission branch pipe; 39. Rotating sphere; 40. Prompt hemisphere; 41. Light-isolating plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figures 1 to 8 , a terrain flatness measuring device for land planning space, including:

[0032] A total station body 1, the bottom surface of which is provided with a bottom support leg 2, the total station body 1 is erected on a reference point of the measurement work, a rotatable rotating eyepiece 3 is provided at the center of the total station body 1, and a laser port 27 is fixedly installed on the upper surface of the rotating eyepiece 3;

[0033] Laser prism 8, the bottom surface of laser prism 8 is provided with a mounting frame 11, the mounting frame 11 is assumed to be at the target point of the measurement work, and the laser prism 8 cooperates with the total station body 1 to complete the normal measurement work;

[0034] When in use, two staff members cooperate with one of them to set up the total station body 1, and the total station body 1 is set up on the reference point of the measurement work through the bottom support legs 2. The rotatable eyepiece 3 in the center allows the surveyor to adjust the observation direction. The laser port 27 on the upper surface of the rotating eyepiece 3 is used to emit a laser beam, and cooperate with the laser prism 8 to complete the measurement. The other person takes the laser prism 8 to set up on multiple target points. The laser prism 8 is set up on the target point of the measurement work through the mounting frame 11 set on the bottom surface. When the laser beam is emitted from the laser port 27 of the total station body 1 and irradiates the laser prism 8, the laser prism 8 will reflect the laser beam back to the total station body 1, thereby completing a measurement.

[0035] The above process is the basic process of current terrain roughness measurement.

[0036] However, in the actual measurement process, it is generally necessary to use a total station and a prism to carry out the measurement work. In the measurement of the flatness of national terrain, surveyors often need to work in various complex and changeable environments, including but not limited to natural terrains such as forests and swamps. Obstacles in these environments, such as trees, bushes, swamp vegetation, etc., often block the target point, making it difficult for the total station to directly aim at the prism for measurement. This not only increases the difficulty of measurement, but also frequently adjusts the position of the total station. It may cause errors in the data and affect the accuracy of the measurement results. Due to the obstruction of obstacles, the surveyor has to adjust the position of the total station many times to find a suitable measurement angle. This frequent position adjustment is not only time-consuming and labor-intensive, but also each adjustment may introduce new errors. After adjusting the position of the total station many times, due to the accuracy limitation of the instrument itself and the difference in the technical level of the operators, the measurement data may produce cumulative errors, resulting in inaccurate final results.

[0037] Therefore, based on the above problem, we first design an auxiliary mechanism, which includes a frame assembly, a light tube assembly and a base assembly. The frame assembly includes: a support frame 5, which is mounted on the side of the obstruction between the rotating eyepiece 3 and the laser prism 8, and a connecting platform 4 is provided on the upper surface of the support frame 5. The upper surfaces of the connecting platform 4, the rotating eyepiece 3 and the laser prism 8 are all provided with level bubbles. A rotatable first laser marking instrument 21 is provided on one side surface of the connecting platform 4, and a meshing gear disk 34 is fixedly installed on the upper surface of the connecting platform 4. The two side surfaces of the meshing gear disk 34 are respectively meshed with a rotatable connecting gear 35, and a connecting plate 36 is fixedly installed on the upper surface of the connecting gear 35. A storage cavity is opened inside the connecting plate 36, and a slidable extended light blocking plate 37 is provided inside the storage cavity. A paddle is also fixedly installed on the upper surface of the extended light blocking plate 37, and a gripping handle for driving the connecting gear 35 to rotate is fixedly installed on one side surface of the connecting plate 36;

[0038] When in use, after the staff who sets up the laser prism 8 sets up the laser prism 8 on the target point, they set up the support frame 5 on the side of the obstruction between the rotating eyepiece 3 and the laser prism 8 to provide support for the connecting platform 4. The upper surfaces of the connecting platform 4, the rotating eyepiece 3 and the laser prism 8 are all provided with level bubbles to ensure the horizontal state of the equipment during the measurement process. The first laser marker 21 on the surface of one side of the connecting platform 4 can be started in special circumstances where the auxiliary mechanism cannot be set up next to the obstacle. By rotating the first laser marker 21, the rotating eyepiece 3 and the laser prism can be aligned. 8 The laser lines shot on both sides of the obstacle are joined to complete the subsequent measurement data calculation work. The meshing toothed disc 34 on the upper surface of the connecting platform 4 cooperates with the connecting gear 35. The connecting gear 35 is driven to rotate by the gripping handle, so as to adjust the position and angle of the connecting plate 36. The two light tube assemblies are driven to rotate according to the width of the obstacle, and the light tube assemblies are attached to both sides of the obstacle. The extended light blocking plate 37 can be controlled to slide by the paddle to isolate the two light tube assemblies to prevent the laser on one side from irradiating the light tube assembly on the other side and causing misjudgment by the staff.

[0039] The light tube assembly includes: two light-transmitting glass tubes 7, the two light-transmitting glass tubes 7 are respectively arranged on the side surfaces opposite to the two connecting plates 36, the side surfaces of the two connecting plates 36 facing away from the light-transmitting glass tube 7 are both provided with light-transmitting branch tubes 38, one end of the light-transmitting branch tubes 38 is connected to the light-transmitting glass tube 7, and the connection can be rotated, the other ends of the two light-transmitting branch tubes 38 are respectively connected with a rotating sphere 39, one side surface of the rotating sphere 39 is provided with a prompt hemisphere 40, a light-isolating sheet 41 is provided between the two prompt hemispheres 40, a calibration section 13 is also provided on the end of the light-transmitting glass tube 7 facing away from the light-transmitting branch tube 38, a lighting opening 14 is provided on one side surface of the calibration section 13, a cross-sectional observation port 25 is provided at one end of the calibration section 13, a central sensitive light line 24 is provided at the inner center of the calibration section 13, a light-isolating tube 23 is provided at one end of the central sensitive light line 24, the light-isolating tube 23 is located at the center of the cross-sectional observation port 25, and a light-sensitive ball 26 is provided at the end of the light-isolating tube 23;

[0040] Two light-transmitting glass tubes 7 are respectively arranged on the opposite side surfaces of the two connecting plates 36 for transmitting laser beams. One end of the light-transmitting branch tube 38 is connected to the light-transmitting glass tube 7 and can be rotated to adapt to the different angles between the two optical tube assemblies. The other end of the light-transmitting branch tube 38 is connected to the rotating sphere 39. The prompt hemisphere 40 on the surface of the rotating sphere 39 is used to indicate the transmission direction of the laser beam. When the laser emitted by the rotating eyepiece 3 and the laser prism 8 is accurately irradiated on the optical tube assemblies on both sides, the laser is refracted in the optical tube assemblies and finally the two prompt hemispheres 40 are illuminated. When the laser beams on both sides are aligned, the brightness of the two laser beams is the same. The staff on the side of the total station body 1 can observe the two prompt hemispheres 40 by rotating the eyepiece 3, so as to observe whether the heights of the laser lines on both sides are aligned at any time during the measurement process. The light-isolating sheet 41 between the two prompt hemispheres 40 is used to isolate the two A prompt hemisphere 40 is provided to prevent the light on one side from affecting the other side. A calibration section 13 is provided at one end of the light-transmitting glass tube 7 away from the light-transmitting branch tube 38. The lighting opening 14 of the calibration section 13 is used to calibrate the emitted laser line. The cross-sectional observation port 25 enables the staff on the side of the total station body 1 to observe whether the laser beam accurately passes through the central sensitive light line 24 in the center of the calibration section 13 during the detection process. After the central sensitive light line 24 is passed through, the laser is transmitted to the photosensitive ball 26 through the center of the light-isolating tube 23. Therefore, the staff on the side of the total station body 1 can observe whether the photosensitive ball 26 is lit by rotating the eyepiece 3 to observe whether the laser line shot by the rotating eyepiece 3 hits the lighting opening 14. After the laser hits the lighting opening 14, it needs to accurately hit the center to obtain the most accurate measurement data. Therefore, a secondary calibration is required through the cross-sectional observation port 25.

[0041] The base assembly includes: a sliding frame 17, the sliding frame 17 is fixedly mounted on a side surface of the calibration section 13 close to the obstruction, a slidable sliding block 16 is arranged at the center of the sliding frame 17, a sponge pad 15 is arranged on a side surface of the sliding block 16 close to the obstacle, a clamping knob 22 is arranged on one side surface of the sliding block 16, the base assembly also includes a wire bonding substrate 6, a wire bonding substrate 6 is arranged on the upper and lower surfaces of the sliding frame 17, a photosensitive pattern 19 is arranged on the side surface of the wire bonding substrate 6 facing away from the obstruction, a rotating shaft is arranged at the connection between the wire bonding substrate 6 and the sliding frame 17, a storage bottom pad 18 is fixedly mounted on one side surface of the wire bonding substrate 6, an observation mirror 20 for observing the cross-sectional observation port 25 is also arranged on one side surface of the wire bonding substrate 6, and a retractable supporting bottom rod 12 is arranged on the inner side surface of the wire bonding substrate 6 located below the sliding frame 17;

[0042] The sliding frame 17 is fixedly installed on the side surface of the calibration section 13 close to the shielding object, and the sliding block 16 in the center can slide to adapt to the shielding object with different surface convexities. The sponge pad 15 on one side of the sliding block 16 is used to protect the sliding block 16 and the shielding object from damage. The clamping knob 22 is used to fix the position of the sliding block 16 to ensure the stability of the base assembly. The wire bonding substrate 6 on the upper and lower surfaces of the sliding frame 17 is connected to the sliding frame 17 through a rotating shaft and can be rotated around the rotating shaft so as to be rotated and stored when not in use, and a storage bottom pad 18 on one side is used for bottom support. The back of the wire bonding substrate 6 A photosensitive pattern 19 is provided on the surface of the side away from the obstruction, which is used to receive and display the laser signal so as to clearly display the adjustment direction when the laser line is aligned. The observation mirror 20 is used to display the laser penetration of the cross-sectional observation port 25, so that the staff can observe without going in front of the obstacle. The supporting bottom rod 12 on the inner side surface of the wire-bonding substrate 6 under the sliding frame 17 is retractable to provide additional support. When the laser penetration of the cross-sectional observation port 25 is abnormal and the light tube assembly is tilted, the height can be adjusted, and the light tube assembly can be kept in a horizontal state;

[0043] The method for calculating the height difference between the target point and the reference point is to first set up the total station body 1 and the laser prism 8, keep the rotating eyepiece 3 in the center of the total station body 1 in a horizontal state, and then start the prismless measurement function of the total station body 1 to obtain the height difference when deflected upward or downward by one degree, and then use the laser prism 8 to hit the laser line one meter above the target point on the obstruction, and then the staff sets the height of the auxiliary mechanism according to the height of the laser line so that the auxiliary mechanism fits the laser line of the laser prism 8, and then the total station body 1 fits the auxiliary mechanism by adjusting the amplitude in the up and down directions, and then observes the specific amplitude of the deflection, and according to the specific amplitude and the height difference when deflected by one degree, plus the height of the laser line of the laser prism 8 of one meter, the height difference between the target point and the reference point can be obtained.

[0044] The auxiliary mechanism also includes a matching component, which includes: two movable frames 28, the two movable frames 28 are respectively arranged on the two side surfaces of the laser port 27, the upper surface of the laser port 27 is provided with a second laser line marker 29, one side surface of the two second laser line markers 29 is provided with a control switch 31, and a rotatable pull handle 30 is connected between the two second laser line markers 29. The matching component also includes: a scale tube 10, the scale tube 10 is a hollow tubular structure, when the laser prism 8 is aligned with the target point on the ground, the laser point passes through the center of the scale tube 10 The target point is illuminated at a certain position for alignment. The graduated tube 10 is fixedly mounted on the bottom surface of the laser prism 8. The surface of the graduated tube 10 is provided with graduated marks. The lowest graduation of the graduated tube 10 is the distance from the bottom surface to the current height (e.g., the lowest graduation reaches the ground at 50 cm, and the lowest graduation mark is 50 cm). The surface of the graduated tube 10 is provided with a liftable lifting carriage 9. A rotatable third laser marking instrument 32 is provided on one side surface of the lifting carriage 9. A scale sheet 33 for aligning with the graduation is provided on one side surface of the third laser marking instrument 32.

[0045] Two movable frames 28 are respectively arranged on the two side surfaces of the laser port 27, and are used to support the second laser line marker 29. The second laser line marker 29 can emit a laser line, and cooperate with the laser point of the laser port 27 to form a laser line, so as to assist the measurement personnel to align with the laser line on the other side of the obstacle. The control switch 31 is used to control the opening and closing of the second laser line marker 29. The graduation tube 10 is fixedly installed on the bottom surface of the laser prism 8, and is used to indicate the height of the laser line. The graduation marks on the surface of the graduation tube 10 allow the measurement personnel to read the current height information. The lifting slide 9 is sleeved on the surface of the graduation tube 10 and can be lifted and lowered, and is used to adjust the height of the third laser line marker 32. The third laser line marker 32 can emit a laser line of accurate height, so that the staff can adjust the height of the auxiliary mechanism according to its height. The graduation piece 33 is aligned with the graduation of the graduation tube 10 to ensure the accuracy of the measurement.

[0046] The working principle of the present invention is:

[0047] When in use, two workers cooperate with one of them to set up the total station body 1, which is set up on the reference point of the measurement work through the bottom support legs 2. The rotatable rotating eyepiece 3 in the center allows the measurement personnel to adjust the observation direction. The laser port 27 on the upper surface of the rotating eyepiece 3 is used to emit a laser beam, which cooperates with the laser prism 8 to complete the measurement. The other person takes the laser prism 8 to set up on multiple target points. The laser prism 8 is set up on the target point of the measurement work through the placement frame 11 set on the bottom surface. When the laser beam is emitted from the laser port 27 of the total station body 1 and irradiates the laser prism 8, the laser prism 8 will reflect the laser beam back to the total station body 1, thereby completing a measurement.

[0048] Two movable frames 28 are respectively arranged on the two side surfaces of the laser port 27, and are used to support the second laser line marker 29. The second laser line marker 29 can emit a laser line, and cooperate with the laser point of the laser port 27 to form a laser line, and assist the measurement personnel to align with the laser line on the other side of the obstacle. The control switch 31 is used to control the opening and closing of the second laser line marker 29. The scale tube 10 is fixedly installed on the bottom surface of the laser prism 8, and is used to indicate the height of the laser line. The scale marks on the surface of the scale tube 10 allow the measurement personnel to read the current height information. The lifting slide 9 is sleeved on the surface of the scale tube 10 and can be lifted and lowered, and is used to adjust the height of the third laser line marker 32. The third laser line marker 32 can emit a laser line of accurate height, and is used to enable the staff to adjust the height of the auxiliary mechanism according to its height. The scale sheet 33 is aligned with the scale of the scale tube 10 to ensure the accuracy of the measurement;

[0049] The light tube assembly includes: two light-transmitting glass tubes 7, the two light-transmitting glass tubes 7 are respectively arranged on the side surfaces opposite to the two connecting plates 36, the side surfaces of the two connecting plates 36 facing away from the light-transmitting glass tube 7 are both provided with light-transmitting branch tubes 38, one end of the light-transmitting branch tubes 38 is connected to the light-transmitting glass tube 7, and the connection can be rotated, the other ends of the two light-transmitting branch tubes 38 are respectively connected with a rotating sphere 39, one side surface of the rotating sphere 39 is provided with a prompt hemisphere 40, a light-isolating sheet 41 is provided between the two prompt hemispheres 40, a calibration section 13 is also provided on the end of the light-transmitting glass tube 7 facing away from the light-transmitting branch tube 38, a lighting opening 14 is provided on one side surface of the calibration section 13, a cross-sectional observation port 25 is provided at one end of the calibration section 13, a central sensitive light line 24 is provided at the inner center of the calibration section 13, a light-isolating tube 23 is provided at one end of the central sensitive light line 24, the light-isolating tube 23 is located at the center of the cross-sectional observation port 25, and a light-sensitive ball 26 is provided at the end of the light-isolating tube 23;

[0050] The sliding frame 17 is fixedly installed on the side surface of the calibration section 13 close to the shielding object, and the sliding block 16 in the center can slide to adapt to the shielding object with different surface convexities. The sponge pad 15 on one side of the sliding block 16 is used to protect the sliding block 16 and the shielding object from damage. The clamping knob 22 is used to fix the position of the sliding block 16 to ensure the stability of the base assembly. The wire bonding substrate 6 on the upper and lower surfaces of the sliding frame 17 is connected to the sliding frame 17 through a rotating shaft and can be rotated around the rotating shaft so as to be rotated and stored when not in use, and a storage bottom pad 18 on one side is used for bottom support. The back of the wire bonding substrate 6 A photosensitive pattern 19 is provided on the surface of the side away from the obstruction, which is used to receive and display the laser signal so as to clearly display the adjustment direction when the laser line is aligned. The observation mirror 20 is used to display the laser penetration of the cross-sectional observation port 25, so that the staff can observe without going in front of the obstacle. The supporting bottom rod 12 on the inner side surface of the wire-bonding substrate 6 under the sliding frame 17 is retractable to provide additional support. When the laser penetration of the cross-sectional observation port 25 is abnormal and the light tube assembly is tilted, the height can be adjusted, and the light tube assembly can be kept in a horizontal state;

[0051] The method for calculating the height difference between the target point and the reference point is to first set up the total station body 1 and the laser prism 8, keep the rotating eyepiece 3 in the center of the total station body 1 in a horizontal state, and then start the prismless measurement function of the total station body 1 to obtain the height difference when deflected upward or downward by one degree, and then use the laser prism 8 to hit the laser line one meter above the target point on the obstruction, and then the staff sets the height of the auxiliary mechanism according to the height of the laser line so that the auxiliary mechanism fits the laser line of the laser prism 8, and then the total station body 1 fits the auxiliary mechanism by adjusting the amplitude in the up and down directions, and then observes the specific amplitude of the deflection, and according to the specific amplitude and the height difference when deflected by one degree, plus the height of the laser line of the laser prism 8 of one meter, the height difference between the target point and the reference point can be obtained.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A terrain flatness measuring device for land planning space, characterized in that: include: A total station body (1), wherein a bottom support leg (2) is provided on the bottom surface of the total station body (1), the total station body (1) is erected on a reference point for measurement work, a rotatable eyepiece (3) is provided at the center of the total station body (1), and a laser port (27) is fixedly mounted on the upper surface of the rotatable eyepiece (3); A laser prism (8), wherein a mounting frame (11) is provided on the bottom surface of the laser prism (8), and the mounting frame (11) is mounted on a target point of a measurement operation; An auxiliary mechanism, the auxiliary mechanism comprising a frame assembly, a light pipe assembly and a base assembly, the frame assembly comprising: a support frame (5), the support frame (5) being mounted on the side of a shielding object between the rotating eyepiece (3) and the laser prism (8), a connecting platform (4) being arranged on the upper surface of the support frame (5), a rotatable first laser marking instrument (21) being arranged on one side surface of the connecting platform (4), a meshing toothed disc (34) being fixedly mounted on the upper surface of the connecting platform (4), two side surfaces of the meshing toothed disc (34) being respectively meshed with a rotatable connecting gear (35), and a connecting plate (36) being fixedly mounted on the upper surface of the connecting gear (35); The light tube assembly comprises: two light-transmitting glass tubes (7), the two light-transmitting glass tubes (7) being respectively arranged on opposite side surfaces of two connecting plates (36), one end of the light-transmitting glass tube (7) being away from the light-transmitting branch tube (38) being further provided with a calibration section (13), one side surface of the two connecting plates (36) being away from the light-transmitting glass tube (7) being provided with a light-transmitting branch tube (38), one end of the light-transmitting branch tube (38) being connected to the light-transmitting glass tube (7), and the connection being rotatable, the other ends of the two light-transmitting branch tubes (38) being respectively connected with a rotating sphere (39), one side surface of the rotating sphere (39) being provided with a prompt hemisphere (40), and a light-isolating sheet (41) being provided between the two prompt hemispheres (40); The base assembly comprises: a sliding frame (17), the sliding frame (17) being fixedly mounted on a side surface of the calibration section (13) close to the obstruction, a slidable sliding block (16) being arranged at the center of the sliding frame (17), a sponge pad (15) being arranged on a side surface of the sliding block (16) close to the obstacle, and a clamping knob (22) being arranged on a side surface of the sliding block (16).

2. The terrain flatness measuring device for land planning space according to claim 1 is characterized by: A storage cavity is provided inside the connecting plate (36), a slidable extended light shielding plate (37) is provided inside the storage cavity, a paddle is fixedly mounted on the upper surface of the extended light shielding plate (37), and a gripping handle for driving the connecting gear (35) to rotate is fixedly mounted on one side surface of the connecting plate (36).

3. The terrain flatness measuring device for land planning space according to claim 1 is characterized by: A lighting opening (14) is provided on one side surface of the calibration section (13), a cross-sectional observation port (25) is provided at one end of the calibration section (13), a central sensitive light line (24) is provided at the inner center of the calibration section (13), a light-isolating tube (23) is provided at one end of the central sensitive light line (24), the light-isolating tube (23) is located at the center of the cross-sectional observation port (25), and a photosensitive ball (26) is provided at the end of the light-isolating tube (23).

4. The terrain flatness measuring device for land planning space according to claim 1 is characterized by: The base assembly also includes a wire bonding substrate (6), and the upper and lower surfaces of the sliding frame (17) are each provided with a wire bonding substrate (6), a surface of the wire bonding substrate (6) on a side facing away from the shielding object is provided with a photosensitive pattern (19), and a rotating shaft is provided at the connection between the wire bonding substrate (6) and the sliding frame (17).

5. The terrain flatness measuring device for land planning space according to claim 4 is characterized by: A storage base pad (18) is fixedly mounted on one side surface of the bonding substrate (6), and an observation mirror (20) for observing a cross-sectional observation port (25) is also provided on one side surface of the bonding substrate (6). A retractable supporting base rod (12) is provided on the inner side surface of the bonding substrate (6) below the sliding frame (17).

6. The terrain flatness measuring device for land planning space according to claim 1 is characterized by: The auxiliary mechanism also includes a matching component, which includes: two movable frames (28), the two movable frames (28) are respectively arranged on the two side surfaces of the laser port (27), the upper surface of the laser port (27) is provided with a second laser marking device (29), one side surface of the two second laser marking devices (29) is provided with a control switch (31), and a rotatable handle (30) is connected between the two second laser marking devices (29).

7. The terrain flatness measuring device for land planning space according to claim 6 is characterized by: The matching component further comprises: a graduated tube (10), the graduated tube (10) being a hollow tubular structure, the graduated tube (10) being fixedly mounted on the bottom surface of the laser prism (8), the surface of the graduated tube (10) being provided with graduated marks, the lowest graduation of the graduated tube (10) being the distance from the bottom surface to the current height, the surface of the graduated tube (10) being provided with a liftable lifting carriage (9), a rotatable third laser marking instrument (32) being provided on one side surface of the lifting carriage (9), and a scale sheet (33) for aligning with the graduation being provided on one side surface of the third laser marking instrument (32).

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