A field measurement device for architectural design

Abstract

This invention belongs to the field of engineering measurement technology, specifically a field measurement device for architectural design. The device includes a tripod with a total station mounted on top. A sliding cylinder shields the device from strong light, preventing ambient light from affecting the laser beam and improving the accuracy of laser beam identification and calibration. A conical column, with its conical base, inserts into the soil, enhancing stability during operation and reducing detection errors caused by device sway. A first spring improves adaptability to ground surfaces of varying hardness, enhancing the device's versatility. When the two sliding plates abut against each other, they form a relatively enclosed environment, further reducing the influence of the external environment on the laser beam and improving the accuracy of laser beam identification and calibration.

Description

Technical Field

[0001] This invention belongs to the field of engineering measurement technology, specifically a field measurement device for architectural design. Background Art

[0002] Field measurement devices used in architectural design are typically specialized equipment that integrates multiple measurement functions, such as a total station. This device combines an electronic theodolite, a distance measuring instrument, and a data processing system. It can accurately measure data such as horizontal angles, vertical angles, and distances. It can also quickly calculate and record the three-dimensional coordinates of the measurement points through built-in software. This helps designers obtain key information such as the topography, landforms, and dimensions of existing buildings on the construction site, providing accurate field data support for the design. This ensures that the design scheme is highly consistent with the actual site conditions and reduces design rework caused by measurement errors.

[0003] In existing technology, the installation of a total station must follow a standardized procedure. First, select a suitable tripod and ensure it is firmly placed near the measurement point. Adjust the length of the tripod's three legs to make it roughly level and at a suitable height for operation. Next, carefully place the total station on the connecting plate at the top of the tripod, ensuring the bottom of the instrument is precisely aligned with the connecting plate. Then, use the center screw to securely connect the total station to the tripod, preventing the instrument from shaking or shifting. Afterward, perform rough leveling using the tripod's leveling screws, observing that the bubble in the circular level is roughly centered. Then, perform fine leveling using the total station's own long level tube, finely adjusting the leveling screws to ensure the bubble in the long level tube is strictly centered, ensuring the instrument is perfectly level. This completes the installation of the total station, and subsequent measurement work can begin.

[0004] The above-mentioned solution still has some problems in practical application. Because some high-end equipment or specific function modes can use machine assistance or even automatic judgment to determine the alignment effect between the laser and the measuring station, when the total station needs to work in a strong light environment, the measuring station area will be "overexposed" (white saturated area) due to the strong light. The laser spot (especially red) will be covered by the overexposed background, making it 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 the center positioning to be deviated and thus reduce the detection effect.

[0005] Therefore, 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 problem is: the present invention provides a field measurement device for architectural design, including a measuring device, the measuring device including a tripod, a total station set on the top of the tripod, a laser head fixedly connected to the bottom of the total station, a drop blocking mechanism set on the bottom of the measuring device, and an annular sealing mechanism set inside the drop blocking mechanism;

[0008] The fall-blocking mechanism includes an arc-shaped plate fixedly installed at the bottom of the tripod, a sliding column inside the arc-shaped plate, and a sliding cylinder slidably installed inside the tripod.

[0009] The annular sealing mechanism includes a sliding plate fixedly installed inside the arc-shaped plate, a first displacement block provided on the outer ring surface of the sliding column, and a second spring fixedly installed inside the arc-shaped plate. The sliding plate can improve the blocking effect of the falling blocking mechanism on strong light environment.

[0010] Preferably, the falling blocking mechanism includes a first fixing cylinder, which is fixedly connected to the top of the tripod;

[0011] A sliding cylinder is slidably connected inside the first fixed cylinder, and the central axis of the first fixed cylinder and the sliding cylinder coincides with the irradiation path of the laser head;

[0012] An observation port is provided on the outer ring surface at the bottom of the sliding cylinder, which allows staff to observe the position of the measuring station and the laser landing point in real time.

[0013] Preferably, a first base is fixedly connected to the bottom of the sliding cylinder, and a second base is provided on the side of the first base, and the first base rotates on the crossbar of the second base;

[0014] The bottom of the second base is fixedly connected to an arc-shaped plate, and a groove is opened in the middle of the arc-shaped plate;

[0015] The falling shielding mechanism also includes a fixing block, which is fixedly connected to the bottom of the tripod.

[0016] Preferably, a rotating cylinder is rotatably connected inside the fixed block, and a sliding column is slidably connected inside the rotating cylinder;

[0017] A second fixed cylinder is fixedly connected to the bottom of the outer ring surface of the rotating cylinder, and 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 conical column facilitates the fixation of the entire device, and the first spring facilitates adaptation to different geological conditions.

[0018] Preferably, the arrangement of the first base and the second base facilitates the rotation of the sliding column, and after the sliding column completes its rotation, the bottom of the end away from the rotating cylinder will fall into the sliding cylinder.

[0019] Preferably, the annular sealing mechanism includes an L-shaped rod, which is composed of a vertical rod and a horizontal rod, and the top of the vertical rod is fixedly connected to the inside of the sliding column.

[0020] Preferably, one end of the L-shaped rod is hinged to a first displacement block via a universal ball joint, and the first displacement block has a bidirectional oblique structure.

[0021] Preferably, a limiting groove is formed inside the arc-shaped plate, and a second spring is fixedly connected to the side wall of the limiting groove. A sliding plate is fixedly connected to one end of the second spring, and the second spring is used for the reset of the sliding plate.

[0022] The side of the sliding plate away from the second spring has a bidirectional oblique structure, and the sliding plate will move linearly along the guide of the limiting groove when it moves.

[0023] Preferably, a fixed column is fixedly connected to the top of the outer ring surface of the sliding column, and a second displacement block is hinged to the top of the fixed column via a universal joint. The second displacement block has a bidirectional inclined structure.

[0024] Preferably, there are two limiting grooves, second springs and sliding plates symmetrically arranged about the sliding column, and the concave structure of one side formed by the two sliding plates is adapted to the oblique structure of the first displacement block and the second displacement block;

[0025] The L-shaped rod and the first displacement block are hinged together by a universal joint, which can accommodate the curvature generated by the sliding column when it rotates.

[0026] The beneficial effects of this invention are as follows:

[0027] 1. The present invention provides a field measurement device for architectural design. When a building needs to be inspected on-site, a tripod is set up at the measurement point. At this time, the sliding cylinder is pulled down so that the sliding cylinder and the first fixed cylinder can cover the area around the measurement point on the vertical plane. The laser head is then turned on, and the observation port is used to observe whether the laser point is around the measurement point. The sliding cylinder can block strong light and avoid the influence of ambient light on the laser, thereby improving the accuracy of the laser alignment with the measurement point and thus improving the accuracy of the instrument in identifying and calibrating the laser beam.

[0028] 2. The field measurement device for architectural design described in this 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 plate will contact the ground. At the same time, the end of the sliding column away from the sliding cylinder will slide down to the side of the rotating cylinder cavity near 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, the second fixed cylinder will also rotate synchronously when the rotating cylinder rotates, and simultaneously 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 plate, when the bottom of the arc plate contacts the ground, the conical column will insert into the soil through its conical structure at the bottom, thereby improving the stability of the device during operation and reducing the detection error caused by device shaking. At the same time, the setting of the first spring can improve the adaptability of the device to ground with different hardness, thereby improving the applicability of the device.

[0029] 3. The field measurement device for architectural design described in this invention, because the sliding column is arc-shaped, can push the two sliding plates apart through its arc surface when the two sliding plates move in opposite directions simultaneously. At this time, the inclined structure of the two sliding plates will abut against the outer ring surface of the sliding column. When the sliding column continues to rotate, the two sliding plates will continue to move in opposite linear motion. 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, the two sliding plates will move in relative linear motion along the guide of the limiting groove because they are not obstructed by external objects and are affected by the reset of the second spring. When the two sliding plates abut against each other on opposite sides, the second spring is in an unforced 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 beam generated by the laser head and improving the accuracy of the instrument in identifying and calibrating the laser beam. Attached Figure Description

[0030] The invention will now be further described with reference to the accompanying drawings.

[0031] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the position and structure of the total station and laser head shown in this invention;

[0033] Figure 3 This is a schematic diagram showing the positional relationship between the drop shielding mechanism and the tripod as illustrated in this invention;

[0034] Figure 4 This is the invention shown Figure 3 Enlarged structural diagram at point A in the middle;

[0035] Figure 5 This is a schematic diagram of the positional structure of the sliding column and the arc plate shown in this invention;

[0036] Figure 6 This is the invention shown Figure 5 Schematic diagram of the structure at point B;

[0037] Figure 7 This is a three-dimensional structural diagram of the annular sealing mechanism shown in this invention;

[0038] Figure 8 This is a schematic diagram of the internal structure of the arc-shaped plate shown in this invention;

[0039] In the diagram: 1. Surveying equipment; 101. Tripod; 102. Total station; 103. Laser head;

[0040] 2. Falling blocking mechanism; 201. First fixed cylinder; 202. Sliding cylinder; 203. Observation port; 204. First base; 205. Second base; 206. Arc plate; 207. Fixed block; 208. Rotating cylinder; 209. Sliding column; 210. Second fixed cylinder; 211. First spring; 212. Conical column;

[0041] 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. Detailed Implementation

[0042] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0043] Example 1

[0044] refer to Figure 1 The measuring device 1 includes a tripod 101, a total station 102 is mounted on the top of the tripod 101, a laser head 103 is fixedly connected to the bottom of the total station 102, a drop blocking mechanism 2 is mounted on the bottom of the measuring device 1, and an annular sealing mechanism 3 is mounted inside the drop blocking mechanism 2.

[0045] The falling blocking mechanism 2 includes an arc-shaped plate 206 fixedly installed at the bottom of the tripod 101, a sliding column 209 is provided inside the arc-shaped plate 206, and a sliding cylinder 202 is slidably installed inside the tripod 101.

[0046] The annular sealing mechanism 3 includes a sliding plate 305 fixedly installed inside the arc plate 206, a first displacement block 302 provided on the outer ring surface of the sliding column 209, and a second spring 304 fixedly installed inside the arc plate 206. The sliding plate 305 can improve the blocking effect of the falling blocking mechanism 2 on strong light environment.

[0047] Specifically, because some high-end equipment or specific function modes can use machine assistance or even automatic judgment to determine the alignment effect between the laser and the measuring station, when the total station 102 needs to work in a strong light environment, the measuring station area will be "overexposed" (white saturated area) due to the strong light. The laser spot (especially red) will be covered by the overexposed background, making it difficult for the algorithm to identify the edge of the spot, resulting in blurred or even disappeared spot edges. 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.

[0048] Therefore, this invention solves this problem by setting up a corresponding structure. The field measurement device for architectural design described in this invention, when testing is required, involves manually setting up a tripod 101 in a predetermined position and fixing the total station 102 using a fixing component. At this time, the laser head 103 is activated to align with the measurement station on the ground. Because some high-end devices or specific function modes can use machine assistance or even automatic judgment to determine the alignment effect between the laser and the measurement station, when the total station 102 needs to work in a strong light environment, the measurement station area will be "overexposed" (white saturated area) due to excessive light. The laser spot (especially red) will be obscured by the overexposed background, making it difficult for the algorithm to identify the edge of the spot, resulting in blurred or even disappeared spots. The algorithm cannot then... Accurately extracting the true boundary of the light spot may lead to misjudging the "geometric center" of the overexposed area as the center of the light spot, resulting in a deviation in center positioning and thus reducing the detection effect. At this time, the sliding cylinder 202 will fall. Since the central axis of the sliding cylinder 202 coincides with the laser path of the laser head 103, the falling 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 apart. When the sliding column 209 rotates to a horizontal state, the two sliding plates 305 will be reset by 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 in the centering process.

[0049] Example 2

[0050] like Figures 2 to 8 As shown in Example 1, another embodiment of the present invention is as follows:

[0051] like Figure 3 As shown, the falling blocking mechanism 2 described in this embodiment includes a first fixing cylinder 201, which is fixedly connected to the top of the tripod 101;

[0052] The first fixed cylinder 201 is slidably connected to a sliding cylinder 202, and the central axis of the first fixed cylinder 201 and the sliding cylinder 202 coincides with the irradiation path of the laser head 103;

[0053] The bottom outer ring surface of the sliding cylinder 202 is provided with an observation port 203, which allows staff to observe the position of the measuring station and the laser landing point in real time.

[0054] like Figure 3 and Figure 4 As shown, in this embodiment, the bottom of the sliding cylinder 202 is fixedly connected to a first base 204, and a second base 205 is provided on the side of the first base 204. The first base 204 rotates on the crossbar of the second base 205.

[0055] The bottom of the second base 205 is fixedly connected to an arc-shaped plate 206, and a groove is provided in the middle of the arc-shaped plate 206;

[0056] The falling blocking mechanism 2 also includes a fixing block 207, which is fixedly connected to the bottom of the tripod 101.

[0057] like Figure 5 and Figure 6 As shown, in this embodiment, 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;

[0058] The bottom of the outer ring surface of the rotating cylinder 208 is fixedly connected to a second fixed cylinder 210. The top of the inner cavity of the second fixed cylinder 210 is fixedly connected to a first spring 211. The bottom of the first spring 211 is fixedly connected to a conical column 212. The conical column 212 is designed to fix the entire device, and the first spring 211 is designed to adapt to different geological conditions.

[0059] The arrangement of the first base 204 and the second base 205 facilitates the rotation of the sliding column 209. After the sliding column 209 completes its rotation, the bottom of the end away from the rotating cylinder 208 will fall into the sliding cylinder 202.

[0060] Specifically, when a building needs to be inspected on-site, the tripod 101 is set up on the measuring station. At this time, the sliding cylinder 202 is pulled down so that the sliding cylinder 202 and the first fixed cylinder 201 can cover the surrounding area of ​​the measuring station in the vertical plane. Then, the laser head 103 is turned on, and the observation port 203 is used to observe whether the laser point is around the measuring station. The sliding cylinder 202 can block strong light and avoid the influence of ambient light on the laser, thereby improving the accuracy of the laser and the measuring station alignment, and thus improving the accuracy of the instrument in identifying and calibrating the laser beam.

[0061] As the sliding cylinder 202 slides downward, the first base 204 fixed to the bottom of the sliding cylinder 202 also moves downward synchronously. At the same time, the sliding column 209 moves 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 by the fixing block 207, and the sliding column 209 slides inside the rotating cylinder 208, the rotating cylinder 208 will rotate around the rotating shaft connected to the fixing block 207 when the sliding cylinder 202 moves downward. At the same time, the first base 204 will also rotate around the crossbar on the second base 205.

[0062] 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. Simultaneously, the end of the sliding column 209 away from the sliding cylinder 202 will slide down to the side of the rotating cylinder 208 near the fixed block 207. At this point, 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, the second fixed cylinder 210 will also rotate synchronously when the rotating cylinder 208 rotates, thus driving its... The first spring 211 inside rotates synchronously with the conical column 212. Since the bottom of the rotating cylinder 208, the sliding column 209 and 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 that of 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 conical structure at the bottom. This can improve the stability of the device during operation and reduce the detection error caused by device shaking. At the same time, the setting of the first spring 211 can improve the adaptability of the device to ground with different hardness, thereby improving the applicability of the device.

[0063] like Figure 7 As shown, the annular sealing mechanism 3 in this embodiment includes an L-shaped rod 301, which 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 to the inside of the sliding column 209.

[0064] like Figure 7As shown, in this embodiment, one end of the L-shaped rod 301 is hinged to a first displacement block 302 via a universal ball joint. The first displacement block 302 has a bidirectional oblique structure.

[0065] like Figure 8 As shown, in this embodiment, a limiting groove 303 is provided inside the arc plate 206. A second spring 304 is fixedly connected to the side wall of the limiting groove 303. A sliding plate 305 is fixedly connected to one end of the second spring 304. The second spring 304 is provided for the reset operation of the sliding plate 305.

[0066] like Figure 7 and Figure 8 As shown, in this embodiment, the side of the sliding plate 305 away from the second spring 304 has a bidirectional oblique structure, and the sliding plate 305 will move linearly along the guide of the limiting groove 303 when it moves.

[0067] A fixed column 306 is fixedly connected to the top of the outer ring surface of the sliding column 209. A second displacement block 307 is hinged to the top of the fixed column 306 via a universal joint. The second displacement block 307 has a bidirectional oblique structure.

[0068] The limiting groove 303, the second spring 304 and the sliding plate 305 are symmetrically arranged about the sliding column 209 in two ways, and the concave structure of one side formed by the two sliding plates 305 is adapted to the oblique structure of the first displacement block 302 and the second displacement block 307.

[0069] The L-shaped rod 301 and the first displacement block 302 are hinged together by a universal joint to accommodate the curvature generated by the sliding column 209 when it rotates.

[0070] Specifically, because there is a gap between the sliding plate 305 and the sliding column 209, when the tripod 101 is extended, it will drive the fixed column 306 and the second displacement block 307 to move synchronously through the sliding column 209. Since the fixed column 306 and the second displacement block 307 are hinged by a universal ball joint, 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 it on both sides to move synchronously along the guide of the limiting groove 303 through its inclined structure. At this time, the universal ball joint connected to the fixed column 306 and the second displacement block 307 can counteract the curvature of the sliding column 209 during rotation. Also, because the sliding column 209 is curved, when the two sliding plates 305 move in opposite directions simultaneously, the sliding column 209 can use its curved surface to hold the two sliding plates together. When the plate 305 is pushed open, the oblique structure of the two sliding plates 305 will abut against the outer ring surface of the sliding column 209. As the sliding column 209 continues to rotate, the two sliding plates 305 will continue to move in opposite directions in a straight line. 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 obstructed 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 limiting groove 303. When the two sliding plates 305 abut against each other on opposite sides, the second spring 304 is in an unforced state. At this time, the second spring 304 and the arc plate 206 will form a relatively closed environment, thereby further reducing the influence of the external environment on the beam generated by the laser head 103 and improving the accuracy of the instrument in identifying and calibrating the laser beam.

[0071] Working principle: When a building needs to be inspected on-site, the tripod 101 is set up on the measuring station. At this time, the sliding cylinder 202 is pulled down so that the sliding cylinder 202 and the first fixed cylinder 201 can cover the surrounding area of ​​the measuring station in the vertical plane. Then, the laser head 103 is turned on, and the observation port 203 is used to observe whether the laser point is around the measuring station. The sliding cylinder 202 can block strong light and avoid the influence of ambient light on the laser, thereby improving the accuracy of the laser and the measuring station alignment, and thus improving the accuracy of the instrument in identifying and calibrating the laser beam.

[0072] As the sliding cylinder 202 slides downward, the first base 204 fixed to the bottom of the sliding cylinder 202 also moves downward synchronously. At the same time, the sliding column 209 moves 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 by the fixing block 207, and the sliding column 209 slides inside the rotating cylinder 208, the rotating cylinder 208 will rotate around the rotating shaft connected to the fixing block 207 when the sliding cylinder 202 moves downward. At the same time, the first base 204 will also rotate around the crossbar on the second base 205.

[0073] 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. Simultaneously, the end of the sliding column 209 away from the sliding cylinder 202 will slide down to the side of the rotating cylinder 208 near the fixed block 207. At this point, 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, the second fixed cylinder 210 will also rotate synchronously when the rotating cylinder 208 rotates, thus driving its... The first spring 211 inside rotates synchronously with the conical column 212. Since the bottom of the rotating cylinder 208, the sliding column 209 and 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 that of 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 conical structure at the bottom. This can improve the stability of the device during operation and reduce the detection error caused by device shaking. At the same time, the setting of the first spring 211 can improve the adaptability of the device to ground with different hardness, thereby improving the applicability of the device.

[0074] Because there is a gap between the sliding plate 305 and the sliding column 209, when the tripod 101 is extended, it will drive the fixed column 306 and the second displacement block 307 to move synchronously through the sliding column 209. Since the fixed column 306 and the second displacement block 307 are hinged by a universal ball joint, 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 abut against its sides to move synchronously along the guide of the limiting groove 303 through its inclined structure. At this time, the universal ball joint connecting the fixed column 306 and the second displacement block 307 can counteract the curvature of the sliding column 209 during rotation. Also, because the sliding column 209 is curved, when the two sliding plates 305 move in opposite directions simultaneously, the sliding column 209 can use its curved surface to hold the two sliding plates 305 in place. When the sliding plate 305 is pushed open, the oblique structure of the two sliding plates 305 will abut against the outer ring surface of the sliding column 209. As the sliding column 209 continues to rotate, the two sliding plates 305 will continue to move in opposite directions in a straight line. 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 will move in a straight line relative to each other along the guide of the limiting groove 303 because they are not blocked by external objects and are affected by the reset of the second spring 304. When the two sliding plates 305 abut against each other on opposite sides, the second spring 304 is in an unforced state. At this time, the second spring 304 and the arc plate 206 will form a relatively closed environment, thereby further reducing the influence of the external environment on the beam generated by the laser head 103 and improving the accuracy of the instrument in identifying and calibrating the laser beam.

[0075] The foregoing has shown and described 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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of 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) mounted on the top of the tripod (101), and a laser head (103) fixedly connected to the bottom of the total station (102), characterized in that: The measuring device (1) is provided with a falling shielding mechanism (2) at the bottom, and the falling shielding mechanism (2) is provided with an annular sealing mechanism (3) inside. The falling blocking mechanism (2) includes an arc plate (206) fixedly installed at the bottom of the tripod (101), a sliding column (209) is provided inside the arc plate (206), and a sliding cylinder (202) is slidably installed inside the tripod (101). The annular sealing mechanism (3) includes a sliding plate (305) fixedly installed inside the arc plate (206), a first displacement block (302) is provided on the outer ring surface of the sliding column (209), and a second spring (304) is fixedly installed inside the arc plate (206). The sliding plate (305) can improve the blocking effect of the falling blocking mechanism (2) on the strong light environment. The arc plate (206) has a limiting groove (303) inside. A second spring (304) is fixedly connected to the side wall of the limiting groove (303). A sliding plate (305) is fixedly connected to one end of the second spring (304). The second spring (304) is used for the reset of the sliding plate (305). The side of the sliding plate (305) away from the second spring (304) has a bidirectional oblique structure, and the sliding plate (305) will move linearly along the guide of the limiting groove (303) when it moves; A fixed column (306) is fixedly connected to the top of the outer ring surface of the sliding column (209). A second displacement block (307) is hinged to the top of the fixed column (306) through a universal joint. The second displacement block (307) has a bidirectional inclined structure. When the sliding column (209) rotates around the crossbar of the second base (205), 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. 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 relatively linear direction along the guide of the limiting groove (303). When the two sliding plates (305) abut against each other on opposite sides, the second spring (304) is in an unforced state. At this time, the second spring (304) and the arc plate (206) will form a relatively closed environment.

2. The field measurement device for architectural design according to claim 1, characterized in that: The falling blocking mechanism (2) includes a first fixing cylinder (201), which is fixedly connected to the top of the tripod (101); The first fixed cylinder (201) has a sliding cylinder (202) slidably connected inside it, and the central axis of the first fixed cylinder (201) and the sliding cylinder (202) coincides with the irradiation path of the laser head (103); The sliding cylinder (202) has an observation port (203) on its bottom outer ring surface, which allows staff to observe the position of the measuring station and the laser landing point in real time.

3. The field measurement device for architectural design according to claim 2, characterized in that: The bottom of the sliding cylinder (202) is fixedly connected to a first base (204), and a second base (205) is provided on the side of the first base (204). The first base (204) rotates on the crossbar of the second base (205). The bottom of the second base (205) is fixedly connected to an arc-shaped plate (206), and a groove is provided in the middle of the arc-shaped plate (206); The falling blocking mechanism (2) also includes a fixing block (207), which is fixedly connected to the bottom of the tripod (101).

4. The field measurement device for architectural design according to claim 3, characterized in that: The fixed block (207) is rotatably connected to a rotating cylinder (208), and the rotating cylinder (208) is slidably connected to a sliding column (209). The bottom of the outer ring of the rotating cylinder (208) is fixedly connected to a second fixed cylinder (210), the top of the inner cavity of the second fixed cylinder (210) is fixedly connected to a first spring (211), and the bottom of the first spring (211) is fixedly connected to a conical column (212). The conical column (212) is designed to facilitate the fixation of the entire device, and the first spring (211) is designed to adapt to different geological conditions.

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

6. The field measurement device for architectural design according to claim 5, characterized in that: The annular sealing mechanism (3) includes an L-shaped rod (301), which 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 to the inside of the sliding column (209).

7. The field measurement device for architectural design according to claim 6, characterized in that: The L-shaped rod (301) has a first displacement block (302) at one end of its horizontal rod via a universal ball joint. The first displacement block (302) has a bidirectional oblique structure.

8. The field measurement device for architectural design according to claim 1, characterized in that: The limiting groove (303), the second spring (304) and the sliding plate (305) are symmetrically arranged about the sliding column (209), and the concave structure of one side formed by the two sliding plates (305) is adapted to the oblique structure 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 together by a universal joint to accommodate the curvature generated by the sliding column (209) when it rotates.

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