Field measurement device for architectural design

Abstract

The invention belongs to the technical field of engineering surveying, and particularly relates to an on-site measuring device for building design, which comprises measuring equipment, the measuring equipment comprises a tripod, a total station is arranged at the top of the tripod, a hard light environment can be shielded through a sliding cylinder, the influence of ambient light on laser is avoided, and the measuring precision is improved. Meanwhile, a conical column can be inserted into soil through a conical structure at the bottom of the conical column, so that the stability of the device during operation can be improved, and then detection errors caused by shaking of the device can be reduced; the adaptability of the device to grounds with different hardness is improved through the arrangement of a first spring, then the applicability of the device can be improved, when the opposite sides of the two sliding plates abut against each other, the sliding plates and the arc-shaped plates can form a relatively closed environment, and therefore the influence of the external environment on light beams generated by the laser head is further reduced; and the accuracy of identifying and calibrating the laser beam by the instrument is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering measurement, in particular to a field measurement device used for architectural design. Background Art

[0002] Field measurement devices used for architectural design are usually professional equipment that integrates multiple measurement functions. For example, a total station combines an electronic theodolite, a rangefinder, and a data processing system to accurately measure horizontal angles, vertical angles, distances, and other data. It can also quickly calculate and record the three-dimensional coordinates of the measurement points through built-in software, assisting designers in obtaining key information such as the topography, landforms, and dimensions of existing buildings of the construction site, providing accurate field data support for the design, ensuring that the design plan is highly consistent with the actual site conditions, and reducing design rework caused by measurement errors.

[0003] In the prior art, the installation of a total station must follow a standard process. First, select a suitable tripod and ensure that it is firmly placed near the measurement point, adjust the length of the three legs of the tripod so that it is roughly horizontal and at a height suitable for operation; then carefully place the total station on the connection plate at the top of the tripod, paying attention to the precise docking of the bottom of the instrument with the connection plate, and then use the center screw to fasten the total station to the tripod to prevent the instrument from shaking or shifting; then use the tripod's foot screws to perform rough leveling, observe the bubble of the circular level to make it roughly centered, and then use the total station's own long level tube for fine leveling, and fine-tune the foot screws to make the bubble of the long level tube strictly centered to ensure that the instrument is in a strictly horizontal state. At this point, the installation of the total station is completed and subsequent measurement work can begin.

[0004] There are still some problems in the actual application of the above solution. Because some high-end equipment or specific functional modes will use machine assistance or even automatically determine the centering effect of the laser and the measuring station. Therefore, when the total station needs to work in a strong light environment, the measuring station area will be "overexposed" (white saturated area) due to excessive light. The laser spot (especially red) will be masked by the overexposed background, and the algorithm will find it difficult to identify the edge of the spot, resulting in blurred or even disappearing edge of the spot. The algorithm cannot accurately extract the true boundary of the spot, and may misjudge the "geometric center" of the overexposed area as the center of the spot, which will cause deviation in center positioning and reduce the detection effect.

[0005] To this end, the present invention provides a field measurement device for architectural design. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A field measurement device for architectural design described in the present invention includes a measurement device. The measurement device includes a tripod. A total station is provided at the top of the tripod. A laser head is fixedly connected to the bottom of the total station. A falling shielding mechanism is provided at the bottom of the measurement device. An annular sealing mechanism is provided inside the falling shielding mechanism; The falling shielding mechanism includes an arc-shaped plate fixedly provided at the bottom of the tripod. A sliding column is provided inside the arc-shaped plate. A sliding cylinder is slidably provided inside the tripod; The annular sealing mechanism includes a sliding plate fixedly provided inside the arc-shaped plate. A first displacement block is provided on the outer ring surface of the sliding column. A second spring is fixedly provided inside the arc-shaped plate. The setting of the sliding plate can improve the shielding effect of the falling shielding mechanism on a strong light environment.

[0008] Preferably, the falling shielding mechanism includes a first fixed cylinder fixedly connected to the top of the tripod; A sliding cylinder is slidably connected inside the first fixed cylinder. The central axes of the first fixed cylinder and the sliding cylinder coincide with the irradiation path of the laser head; An observation port is provided on the outer ring surface at the bottom of the sliding cylinder. The observation port facilitates the staff to observe the positions of the measurement point and the laser landing point in real time.

[0009] Preferably, a first base is fixedly connected to the bottom of the sliding cylinder. A second base is provided on the side of the first base. The first base rotates on the cross bar of the second base; The second base is fixedly connected to the bottom of the arc-shaped plate. A channel is provided in the middle of the arc-shaped plate; The falling shielding mechanism further includes a fixed block fixedly connected to the bottom of the tripod.

[0010] Preferably, a rotating cylinder is rotatably connected inside the fixed block. A sliding column is slidably connected inside the rotating cylinder; A second fixed cylinder is fixedly connected to the bottom of the outer ring surface of the rotating cylinder. A first spring is fixedly connected to the top of the inner cavity of the second fixed cylinder. A conical column is fixedly connected to the bottom of the first spring. The setting of the conical column facilitates fixing the entire device. The setting of the first spring facilitates adapting to different geological conditions.

[0011] Preferably, the settings of the first base and the second base facilitate the rotation of the sliding column. After the sliding column completes the rotation, the bottom of the end of the sliding column away from the rotating cylinder will fall into the sliding cylinder.

[0012] Preferably, the annular sealing mechanism includes an L-shaped rod composed of a vertical rod and a horizontal rod. The top of the vertical rod of the L-shaped rod is fixedly connected inside the sliding column.

[0013] Preferably, one end of the transverse rod of the L-shaped rod is hinged with a first displacement block through a universal ball, and the first displacement block is of a bidirectional inclined structure.

[0014] Preferably, a limiting groove is formed inside the arc-shaped plate, a second spring is fixedly connected to the side wall of the limiting groove, one end of the second spring is fixedly connected with a sliding plate, and the second spring is arranged for the reset work of the sliding plate; One side of the sliding plate away from the second spring is of a bidirectional inclined structure, and the sliding plate will move in a straight line along the guide of the limiting groove when moving.

[0015] Preferably, a fixed column is fixedly connected to the top outer ring surface of the sliding column, the top of the fixed column is hinged with a second displacement block through a universal joint, and the second displacement block is of a bidirectional inclined structure.

[0016] Preferably, there are two limiting grooves, second springs and sliding plates symmetrically arranged with respect to the sliding column, and the concave structure formed by the two sliding plates on one side is adapted to the inclined structures of the first displacement block and the second displacement block; The L-shaped rod and the first displacement block are hinged through a universal joint to adapt to the radian generated when the sliding column rotates.

[0017] The beneficial effects of the present invention are as follows: 1. For a field measurement device for architectural design according to the present invention, when it is necessary to conduct on-site inspection of a building, when the tripod is set up at the measuring point, at this time, the sliding cylinder is pulled downward so that the sliding cylinder and the first fixed cylinder can cover the surrounding of the measuring point on the vertical plane. At this time, the laser head is turned on, and it is observed through the observation port whether the laser landing point is around the measuring point. The sliding cylinder can block the strong light environment and avoid the influence of ambient light on the laser, improving the accuracy of the alignment between the laser and the measuring point, and thus improving the accuracy of the instrument to identify and calibrate the laser beam.

[0018] 2. For the on-site measurement device for architectural design according to the present invention, when the end of the sliding column away from the rotating cylinder rotates to the same horizontal plane as the bottom of the sliding cylinder, the bottom of the arc-shaped plate will contact the ground. At the same time, the end of the sliding column away from the sliding cylinder will slide to the side of the rotating cylinder cavity close to the fixed block. At this time, the rotating cylinder, the sliding column and the bottom of the sliding cylinder are on the same horizontal plane. Since the second fixed cylinder is fixed to the bottom of the outer ring surface of the rotating cylinder, when the rotating cylinder rotates, the second fixed cylinder will also rotate synchronously and drive the first spring and the conical column inside it to rotate synchronously. Since the rotating cylinder, the sliding column and the bottom of the sliding cylinder are on the same horizontal plane, and the conical structure at the bottom of the conical column is longer than the arc-shaped plate, when the bottom of the arc-shaped plate contacts the ground, the conical column will insert into the soil through the conical structure at its bottom, thereby improving the stability of the device during operation, and further reducing the detection error caused by the shaking of the device. At the same time, due to the setting of the first spring, the adaptability of the device to different hardness of the ground can be improved, and further the applicability of the device can be improved.

[0019] 3. For the on-site measurement device for architectural design according to the present invention, since the sliding column is arc-shaped, when the two sliding plates move towards each other at the same time, the sliding column can push the two sliding plates away through its arc surface. At this time, the inclined structure opposite to the two sliding plates will contact the outer ring surface of the sliding column. When the sliding column continues to rotate, the two sliding plates will continue to move in a straight line towards each other. When the sliding column is in a horizontal state, the L-shaped rod and the first displacement block are also in a horizontal state. At this time, since the two sliding plates are not blocked by external objects and are affected by the reset of the second spring, they will move in a straight line relative to each other along the guide of the limit groove. When the opposite sides of the two sliding plates are in contact, the second spring is in an unloaded state. At this time, the second spring and the arc-shaped plate will form a relatively closed environment, thereby further reducing the influence of the external environment on the light beam generated by the laser head and improving the accuracy of the instrument to identify and calibrate the laser beam. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 1 is the overall structural schematic diagram of a preferred embodiment shown in the present invention; Figure 2 is the structural schematic diagram of the total station instrument and the laser head position shown in the present invention; Figure 3 is the structural schematic diagram of the relationship between the falling shielding mechanism and the tripod shown in the present invention; Figure 4 is shown in the present invention Figure 3 The enlarged structural schematic diagram at A in; Figure 5It is a schematic diagram of the position structure of the sliding column and the arc-shaped plate shown in the present invention; Figure 6 It is shown in the present invention Figure 5 Schematic diagram of the structure at position B in Figure 7 It is a three-dimensional structure schematic diagram of the annular sealing mechanism shown in the present invention; Figure 8 It is a schematic diagram of the internal structure of the arc-shaped plate shown in the present invention; In the figure: 1. Measuring device; 101. Tripod; 102. Total station; 103. Laser head; 2. Falling shielding mechanism; 201. First fixed cylinder; 202. Sliding cylinder; 203. Observation port; 204. First base; 205. Second base; 206. Arc-shaped plate; 207. Fixed block; 208. Rotating cylinder; 209. Sliding column; 210. Second fixed cylinder; 211. First spring; 212. Conical column; 3. Annular sealing mechanism; 301. L-shaped rod; 302. First displacement block; 303. Limiting groove; 304. Second spring; 305. Sliding plate; 306. Fixed column; 307. Second displacement block. Specific embodiments

[0022] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0023] Embodiment 1

[0024] Refer to Figure 1 , including a measuring device 1, the measuring device 1 includes a tripod 101, a total station 102 is arranged at the top of the tripod 101, a laser head 103 is fixedly connected to the bottom of the total station 102, a falling shielding mechanism 2 is arranged at the bottom of the measuring device 1, and an annular sealing mechanism 3 is arranged inside the falling shielding mechanism 2; The falling shielding mechanism 2 includes an arc-shaped plate 206 fixedly arranged at the bottom of the tripod 101, a sliding column 209 is arranged inside the arc-shaped plate 206, and a sliding cylinder 202 is slidably arranged inside the tripod 101; The annular sealing mechanism 3 includes a sliding plate 305 fixedly arranged inside the arc-shaped plate 206, a first displacement block 302 is arranged on the outer ring surface of the sliding column 209, and a second spring 304 is fixedly arranged inside the arc-shaped plate 206. The arrangement of the sliding plate 305 can improve the shielding effect of the falling shielding mechanism 2 on the strong light environment.

[0025] Specifically, since machine assistance or even automatic discrimination of the centering effect between the laser and the measuring point is performed in some high-end devices or specific function modes, when the total station 102 needs to work in a strong light environment, due to the excessive light intensity in the measuring point area under strong light, the image will be "overexposed" (white saturated area), and the laser spot (especially red) will be covered by the overexposed background. It is difficult for the algorithm to identify the edge of the spot, resulting in the edge of the spot being blurred or even disappearing. The algorithm cannot accurately extract the true boundary of the spot and may misjudge the "geometric center" of the overexposed area as the center of the spot, which will cause a deviation in the center positioning and thus reduce the detection effect. Therefore, the present invention solves this problem by setting corresponding structures. For a field measurement device for architectural design described in the present invention, when detection is required, the tripod 101 is manually erected at a predetermined position, and the total station 102 is fixed through a fixing component. At this time, the laser head 103 is started to perform centering operation with the measuring point on the ground. Since machine assistance or even automatic discrimination of the centering effect between the laser and the measuring point is performed in some high-end devices or specific function modes, when the total station 102 needs to work in a strong light environment, due to the excessive light intensity in the measuring point area under strong light, the image will be "overexposed" (white saturated area), and the laser spot (especially red) will be covered by the overexposed background. It is difficult for the algorithm to identify the edge of the spot, resulting in the edge of the spot being blurred or even disappearing. The algorithm cannot accurately extract the true boundary of the spot and may misjudge the "geometric center" of the overexposed area as the center of the spot, which will cause a deviation in the center positioning and thus reduce the detection effect. At this time, the sliding cylinder 202 will drop. Since the central axis of the sliding cylinder 202 coincides with the laser path of the laser head 103, the dropping of the sliding cylinder 202 can block the external light, thereby improving the detection effect of the laser head 103. At the same time, when the sliding column 209 rotates, the movement of the second displacement block 307 can push the two sliding plates 305 away. When the sliding column 209 rotates to the horizontal state, the two sliding plates 305 will be reset under the influence of the second spring 304, thereby forming an annular blocking area at the bottom of the sliding cylinder 202, further improving the accuracy of the device during the centering process.

[0026] Embodiment 2

[0027] As Figures 2 to 8 shown, compared with Embodiment 1, another implementation manner of the present invention is: As Figure 3 shown, the falling and blocking mechanism 2 described in this embodiment includes a first fixed cylinder 201, and the first fixed cylinder 201 is fixedly connected to the top of the tripod 101; A sliding cylinder 202 is slidably connected inside the first fixed cylinder 201, and the central axes of the first fixed cylinder 201 and the sliding cylinder 202 coincide with the irradiation path of the laser head 103; An observation port 203 is provided on the outer circumferential surface of the bottom of the sliding cylinder 202, and the observation port 203 facilitates the staff to observe the positions of the measuring point and the laser landing point in real time.

[0028] As Figure 3 and Figure 4 shown, a first base 204 is fixedly connected to the bottom of the sliding cylinder 202 in this embodiment. A second base 205 is provided on the side of the first base 204, and the first base 204 rotates on the cross bar of the second base 205; A curved plate 206 is fixedly connected to the bottom of the second base 205, and a channel is provided in the middle of the curved plate 206; The falling shielding mechanism 2 further includes a fixing block 207, and the fixing block 207 is fixedly connected to the bottom of the tripod 101.

[0029] As Figure 5 and Figure 6 shown, a rotating cylinder 208 is rotatably connected inside the fixing block 207 in this embodiment, and a sliding column 209 is slidably connected inside the rotating cylinder 208; A second fixing cylinder 210 is fixedly connected to the bottom of the outer circumferential surface of the rotating cylinder 208. A first spring 211 is fixedly connected to the top of the inner cavity of the second fixing cylinder 210. The first spring 211 is fixedly connected to a conical column 212 at the bottom. The setting of the conical column 212 facilitates fixing the entire device, and the setting of the first spring 211 facilitates adapting to different geological conditions.

[0030] The settings of the first base 204 and the second base 205 facilitate the rotation of the sliding column 209. After the sliding column 209 completes the rotation, the bottom of the end away from the rotating cylinder 208 will fall into the sliding cylinder 202.

[0031] Specifically, when it is necessary to conduct on-site inspection of a building, the tripod 101 is erected at the measuring point. At this time, the sliding cylinder 202 is pulled downward so that the sliding cylinder 202 and the first fixing cylinder 201 can cover the surroundings of the measuring point in the vertical plane. At this time, the laser head 103 is turned on, and it is observed through the observation port 203 whether the laser landing point is around the measuring point. The sliding cylinder 202 can block the strong light environment, avoid the influence of environmental light on the laser, improve the accuracy of the alignment between the laser and the measuring point, and thus improve the accuracy of the instrument to identify and calibrate the laser beam; While the sliding cylinder 202 slides downward, the first base 204 fixed to the bottom of the sliding cylinder 202 will also move downward synchronously, and while moving, it will drive the sliding column 209 to move downward through the second base 205. Since the sliding column 209 is fixed to the outer ring surface of the bottom of the tripod 101 through the fixing block 207 and the sliding column 209 slides inside the rotating cylinder 208, when the sliding cylinder 202 moves downward, the rotating cylinder 208 will rotate around the rotating shaft connected to the fixing block 207, and at the same time, the first base 204 will also rotate around the cross bar on the second base 205; When the end of the sliding column 209 away from the rotating cylinder 208 rotates to the same horizontal plane as the bottom of the sliding cylinder 202, the bottom of the arc-shaped plate 206 will contact the ground. At the same time, the end of the sliding column 209 away from the sliding cylinder 202 will slide to the side of the inner cavity of the rotating cylinder 208 close to the fixing block 207. At this time, the rotating cylinder 208, the sliding column 209 and the bottom of the sliding cylinder 202 are on the same horizontal plane. Since the second fixing cylinder 210 is fixed to the bottom of the outer ring surface of the rotating cylinder 208, when the rotating cylinder 208 rotates, the second fixing cylinder 210 will also rotate synchronously and drive the first spring 211 and the conical column 212 inside it to rotate synchronously. Since the rotating cylinder 208, the sliding column 209 and the bottom of the sliding cylinder 202 are on the same horizontal plane and the conical structure at the bottom of the conical column 212 is longer than the arc-shaped plate 206, when the bottom of the arc-shaped plate 206 contacts the ground, the conical column 212 will insert into the soil through the conical structure at its bottom, thereby improving the stability of the device during operation, and further reducing the detection error caused by the shaking of the device. At the same time, due to the setting of the first spring 211, the adaptability of the device to different hardness grounds can be improved, and further the applicability of the device can be improved.

[0032] As Figure 7 shown, the annular sealing mechanism 3 in this embodiment includes an L-shaped rod 301. The L-shaped rod 301 is composed of a vertical rod and a horizontal rod. The top of the vertical rod of the L-shaped rod 301 is fixedly connected inside the sliding column 209.

[0033] As Figure 7 shown, one end of the horizontal rod of the L-shaped rod 301 is hinged with a first displacement block 302 through a universal ball. The first displacement block 302 has a bidirectional inclined structure.

[0034] As Figure 8 shown, a limiting groove 303 is opened inside the arc-shaped plate 206. A second spring 304 is fixedly connected to the side wall of the limiting groove 303. One end of the second spring 304 is fixedly connected with a sliding plate 305. The setting of the second spring 304 is for the reset work of the sliding plate 305; As Figure 7 and Figure 8As shown, the side of the sliding plate 305 away from the second spring 304 has a bidirectional inclined structure, and the sliding plate 305 moves in a straight line along the guidance of the limiting groove 303 when moving.

[0035] A fixing column 306 is fixedly connected to the top of the outer ring surface of the sliding column 209. The top of the fixing column 306 is hinged to a second displacement block 307 through a universal joint. The second displacement block 307 has a bidirectional inclined structure.

[0036] There are two limiting grooves 303, second springs 304 and sliding plates 305 symmetrically arranged with respect to the sliding column 209. The concave structure formed by the two sliding plates 305 on one side is adapted to the inclined structures of the first displacement block 302 and the second displacement block 307. The L-shaped rod 301 and the first displacement block 302 are hinged through a universal joint to adapt to the arc generated when the sliding column 209 rotates.

[0037] Specifically, since there is a gap between the sliding plate 305 and the sliding column 209, when the tripod 101 is expanded, it will drive the fixing column 306 and the second displacement block 307 to move synchronously through the sliding column 209. At the same time, since the fixing column 306 and the second displacement block 307 are hinged through a universal ball, when the sliding column 209 rotates around the cross bar of the second base 205, the second displacement block 307 will push the two sliding plates 305 in contact with its two sides to move synchronously along the guidance of the limiting groove 303 through its inclined structure. At this time, the universal ball connecting the fixing column 306 and the second displacement block 307 can offset the arc generated when the sliding column 209 rotates. At the same time, since the sliding column 209 is arc-shaped, when the two sliding plates 305 move in opposite directions at the same time, the sliding column 209 can push the two sliding plates 305 away through its arc surface. At this time, the opposite inclined structures of the two sliding plates 305 will contact the outer ring surface of the sliding column 209. When the sliding column 209 continues to rotate, the two sliding plates 305 will continue to move in opposite straight lines. When the sliding column 209 is in a horizontal state, the L-shaped rod 301 and the first displacement block 302 are also in a horizontal state. At this time, the two sliding plates 305 are not blocked by external objects and will move in opposite straight lines along the guidance of the limiting groove 303 under the influence of the reset of the second spring 304. When the opposite sides of the two sliding plates 305 are in contact, the second spring 304 is in an unloaded state. At this time, the second spring 304 and the arc-shaped plate 206 will form a relatively closed environment, thereby further reducing the influence of the external environment on the light beam generated by the laser head 103 and improving the accuracy of the instrument to identify and calibrate the laser beam.

[0038] Working principle: When on-site inspection of a building is required, the tripod 101 is set up at the measuring point. At this time, the sliding cylinder 202 is pulled downward so that the sliding cylinder 202 and the first fixed cylinder 201 can cover the surroundings of the measuring point on the vertical plane. At this time, the laser head 103 is turned on, and through the observation port 203, it is observed whether the laser landing point is around the measuring point. The sliding cylinder 202 can block the strong light environment, avoid the influence of ambient light on the laser, improve the accuracy of the alignment between the laser and the measuring point, and thus improve the accuracy of the instrument for identifying and calibrating the laser beam; While the sliding cylinder 202 slides downward, the first base 204 fixed to the bottom of the sliding cylinder 202 will also move downward synchronously, and while moving, it drives the sliding column 209 to move downward through the second base 205. Since the sliding column 209 is fixed to the outer ring surface of the bottom of the tripod 101 through the fixing block 207 and the sliding column 209 slides inside the rotating cylinder 208, when the sliding cylinder 202 moves downward, the rotating cylinder 208 will rotate around the rotating shaft connected to the fixing block 207, and at the same time, the first base 204 will also rotate around the cross bar on the second base 205; When the end of the sliding column 209 away from the rotating cylinder 208 rotates to the same horizontal plane as the bottom of the sliding cylinder 202, the bottom of the arc plate 206 will contact the ground. At the same time, the end of the sliding column 209 away from the sliding cylinder 202 will slide to the side of the inner cavity of the rotating cylinder 208 close to the fixing block 207. At this time, the rotating cylinder 208, the sliding column 209 and the bottom of the sliding cylinder 202 are on the same horizontal plane. Since the second fixed cylinder 210 is fixed to the bottom of the outer ring surface of the rotating cylinder 208, when the rotating cylinder 208 rotates, the second fixed cylinder 210 will also rotate synchronously and drive the first spring 211 and the conical column 212 inside it to rotate synchronously. Since the rotating cylinder 208, the sliding column 209 and the bottom of the sliding cylinder 202 are on the same horizontal plane and the conical structure at the bottom of the conical column 212 is longer than the arc plate 206, when the bottom of the arc plate 206 contacts the ground, the conical column 212 will insert into the soil through its bottom conical structure, which can improve the stability of the device during operation, and thus reduce the detection error caused by the shaking of the device. At the same time, due to the setting of the first spring 211, the adaptability of the device to different hardness of the ground can be improved, and thus the applicability of the device can be improved.

[0039] Since there is a gap between the sliding plate 305 and the sliding column 209, when the tripod 101 is expanded, the fixed column 306 and the second displacement block 307 will be driven to move synchronously by the sliding column 209. At the same time, since the fixed column 306 and the second displacement block 307 are hinged by universal balls, when the sliding column 209 rotates around the crossbar of the second base 205, the second displacement block 307 will push the two sliding plates 305 that are in contact with its two sides to move synchronously along the guide of the limit groove 303 through its inclined structure. At this time, the universal ball connected by the fixed column 306 and the second displacement block 307 can offset the radian when the sliding column 209 rotates. At the same time, since the sliding column 209 is arc-shaped, when the two sliding plates 305 move in opposite directions at the same time, the sliding column 209 can push the two sliding plates 305 away through its arc surface. At this time, the inclined structures opposite to each other on the two sliding plates 305 will be in contact with the outer ring surface of the sliding column 209. When the sliding column 209 continues to rotate, the two sliding plates 305 will continue to move in a straight line in opposite directions. When the sliding column 209 is in a horizontal state, the L-shaped rod 301 and the first displacement block 302 are also in a horizontal state. At this time, since the two sliding plates 305 are not blocked by external objects and are affected by the reset of the second spring 304, they will move in a straight line relative to each other along the guide of the limit groove 303. When the opposite sides of the two sliding plates 305 are in contact, the second spring 304 is in an unloaded state. At this time, the second spring 304 and the arc-shaped plate 206 will form a relatively closed environment, thereby further reducing the influence of the external environment on the light beam generated by the laser head 103 and improving the accuracy of the instrument to identify and calibrate the laser beam.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. 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 technical solutions and their equivalents.

Claims

1. A field measurement device for architectural design, comprising a measuring device (1), the measuring device (1) including a tripod (101), a total station (102) being provided at the top of the tripod (101), and a laser head (103) being fixedly connected to the bottom of the total station (102), characterized in that: A falling shielding mechanism (2) is provided at the bottom of the measurement device (1), and an annular sealing mechanism (3) is arranged inside the falling shielding mechanism (2); The falling shielding mechanism (2) includes an arc-shaped plate (206) fixedly arranged at the bottom of the tripod (101). A sliding column (209) is arranged inside the arc-shaped plate (206), and a sliding cylinder (202) is slidably arranged inside the tripod (101); The annular sealing mechanism (3) includes a sliding plate (305) fixedly arranged inside the arc-shaped plate (206). A first displacement block (302) is arranged on the outer ring surface of the sliding column (209). A second spring (304) is fixedly arranged inside the arc-shaped plate (206). The arrangement of the sliding plate (305) can improve the shielding effect of the falling shielding mechanism (2) on a strong light environment.

2. The on-site measurement device for architectural design according to claim 1, characterized in that: The falling shielding mechanism (2) includes a first fixed cylinder (201), and the first fixed cylinder (201) is fixedly connected to the top of the tripod (101); A sliding cylinder (202) is slidably connected inside the first fixed cylinder (201), and the central axes of the first fixed cylinder (201) and the sliding cylinder (202) coincide with the irradiation path of the laser head (103); An observation port (203) is opened on the outer ring surface at the bottom of the sliding cylinder (202), and the observation port (203) facilitates the staff to observe the positions of the measurement point and the laser landing point in real time.

3. The on-site measurement device for architectural design according to claim 2, characterized in that: A first base (204) is fixedly connected to the bottom of the sliding cylinder (202). A second base (205) is arranged on the side of the first base (204), and the first base (204) rotates on the cross bar of the second base (205); The second base (205) is fixedly connected to an arc-shaped plate (206) at the bottom, and a groove is opened in the middle of the arc-shaped plate (206); The falling shielding mechanism (2) further includes a fixed block (207), and the fixed block (207) is fixedly connected to the bottom of the tripod (101).

4. The on-site measuring device for architectural design according to claim 3, characterized in that: A rotating cylinder (208) is rotatably connected inside the fixed block (207), and a sliding column (209) is slidably connected inside the rotating cylinder (208); A second fixed cylinder (210) is fixedly connected to the bottom of the outer ring surface of the rotating cylinder (208). A first spring (211) is fixedly connected to the top of the inner cavity of the second fixed cylinder (210). The first spring (211) is fixedly connected to a conical column (212) at the bottom. The arrangement of the conical column (212) facilitates the fixation of the entire device, and the arrangement of the first spring (211) facilitates adaptation to different geological conditions.

5. The on-site measurement device for architectural design according to claim 3, characterized in that: The arrangements of the first base (204) and the second base (205) facilitate the rotation of the sliding column (209). After the sliding column (209) completes rotation, the bottom of the end away from the rotating cylinder (208) will fall into the sliding cylinder (202).

6. The on-site measurement device for architectural design according to claim 5, wherein: The annular sealing mechanism (3) includes an L-shaped rod (301). The L-shaped rod (301) is composed of a vertical rod and a horizontal rod. The top of the vertical rod of the L-shaped rod (301) is fixedly connected inside the sliding column (209).

7. The on-site measurement device for architectural design according to claim 6, wherein: One end of the transverse rod of the L-shaped rod (301) is hinged with a first displacement block (302) through a universal ball, and the first displacement block (302) is of a bidirectional inclined structure.

8. The on-site measurement device for architectural design according to claim 7, wherein: A limiting groove (303) is formed inside the arc-shaped plate (206). A second spring (304) is fixedly connected to the side wall of the limiting groove (303). One end of the second spring (304) is fixedly connected to a sliding plate (305). The second spring (304) is provided for the reset work of the sliding plate (305); One side of the sliding plate (305) away from the second spring (304) is of a bidirectional inclined structure, and the sliding plate (305) moves in a straight line along the guidance of the limiting groove (303) when moving.

9. The on-site measurement device for architectural design according to claim 8, characterized in that: A fixing column (306) is fixedly connected to the top of the outer ring surface of the sliding column (209). The top of the fixing column (306) is hinged with a second displacement block (307) through a universal joint, and the second displacement block (307) is of a bidirectional inclined structure.

10. The on-site measurement device for architectural design according to claim 9, characterized in that: The limiting groove (303), the second spring (304) and the sliding plate (305) are symmetrically arranged with respect to the sliding column (209), and the concave structure on one side formed by the two sliding plates (305) is adapted to the inclined structures of the first displacement block (302) and the second displacement block (307); The L-shaped rod (301) and the first displacement block (302) are hinged through a universal joint to adapt to the radian generated when the sliding column (209) rotates.

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