BIM-based surveying and mapping lofting device for roads and bridges

Abstract

The utility model discloses a BIM-based road and bridge surveying and mapping lofting device, which relates to the technical field of surveying and mapping lofting devices, and comprises a total station and a tripod, the upper part of the tripod is provided with a connecting seat, the connecting seat is provided with an automatic coarse adjustment assembly, and the upper part of the automatic coarse adjustment assembly is provided with a mounting seat connected with a leveling base; locking assemblies are arranged in the first connecting shaft and the second connecting shaft, a mounting groove matched with the leveling base is formed in the upper surface of the mounting base, a clamping piece is slidably connected into the mounting groove, and a transmission assembly is arranged between the clamping piece and the locking assemblies. According to the utility model, the horizontal state of the mounting seat can be roughly adjusted while the tripod is erected, so that the difficulty of subsequent leveling through the leveling base is reduced, the adjustment work of the total station is more convenient and quicker, the operation is easy, the purpose of quickly mounting the total station can be realized, and the working efficiency is improved. And the installation difficulty of the total station is reduced to a certain extent.

Description

Technical Field

[0001] This utility model relates to the field of surveying and setting-out devices, and in particular to a BIM-based surveying and setting-out device for roads and bridges. Background Technology

[0002] In the construction of large-scale linear engineering projects such as roads and bridges, surveying and setting out are crucial technical steps to ensure that the actual location and elevation of the project body accurately match the design drawings. Its accuracy directly affects the quality, aesthetic appearance, and structural safety of the project.

[0003] Traditional road and bridge surveying and setting out mainly relies on equipment such as total stations, levels, and RTK surveying systems. Among these, total stations play an indispensable role in complex terrain and precision engineering due to their high measurement accuracy and flexibility. Moreover, with the deep application and popularization of Building Information Modeling (BIM) technology in the field of civil engineering, BIM technology has also been integrated with traditional setting out operations. For example, BIM software or setting out software can be run on a portable computer or tablet, and the total station can be connected via a data cable to achieve electronic transmission of coordinate data, which has improved the accuracy, efficiency, and reliability of road and bridge surveying and setting out to a certain extent.

[0004] Before using a total station for surveying and setting out, a tripod must first be set up at the designated location. Then, the total station is mounted on the tripod to form a surveying and setting out device. During the setup, due to uneven ground, it is generally necessary to level the device using a leveling base installed under the total station. During the leveling process, the three leveling screws on the leveling base need to be turned, and the total station is adjusted to a horizontal state by observing the level.

[0005] However, if the ground slope is large, the three leveling screws need to be turned repeatedly, which greatly increases the difficulty of leveling. This will undoubtedly increase the setup time of the surveying and setting-out device, making the setup work more difficult, especially for beginners. Moreover, when fixing the total station, it is necessary to first move and adjust to ensure that the holes located under the leveling base are aligned with the bolts on the tripod before tightening the bolts to fix the total station. This makes the installation of the total station inconvenient, so there is still room for improvement. Utility Model Content

[0006] The purpose of this invention is to solve the problems of inconvenient leveling and installation of total stations in the prior art, and to propose a BIM-based surveying and setting-out device for roads and bridges.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A BIM-based surveying and layout device for roads and bridges includes a total station and a tripod. The total station has a leveling base at its lower part, and the tripod has a connecting seat at its upper part. An automatic coarse adjustment component is mounted on the connecting seat, and a mounting base connected to the leveling base is located above the automatic coarse adjustment component. The automatic coarse adjustment component includes a first connecting shaft and a second connecting shaft symmetrically fixed within the connecting seat, and a rotating block rotatably connected between the first and second connecting shafts. A third connecting shaft perpendicular to the first connecting shaft is rotatably connected to the lower part of the rotating block. A connecting frame fixed to the lower surface of the mounting base is fixedly connected to the external part of the third connecting shaft, and a counterweight is located below the connecting frame. Locking components are located inside the first and second connecting shafts to secure the automatic coarse adjustment component. The upper surface of the mounting base has a mounting groove adapted to the leveling base, and a clamping element is slidably connected inside the mounting groove. A transmission component is located between the clamping element and the locking component to drive the clamping element to slide and clamp the leveling base.

[0009] In some embodiments, the locking assembly includes a pressure rod and a pressure block. The pressure rod is shaft-shaped and is inserted through a first connecting shaft. The rotating block is hollow with an opening at the top. The pressure block is disposed on the pressure rod and is slidably connected to the rotating block. An insert block is fixedly connected to the pressure block. A fixing hole corresponding to the insert block is opened at one end of the second connecting shaft.

[0010] In some embodiments, a fixed block is slidably connected inside the rotating block. The fixed block is sleeved on the upper part of the third connecting shaft, and a protrusion is fixedly connected to the upper surface of the fixed block. The lower surface of the pressure block is provided with an inclined surface corresponding to the protrusion.

[0011] In some embodiments, a pressure plate is fixedly connected to the outside of the pressure rod inside the rotating block. The inside of the pressure block is hollow with an opening on one side, and a connecting spring is connected between the inner side wall of the pressure block and the pressure plate. One end of the pressure rod is inserted into the second connecting shaft and has an external thread. A threaded hole adapted to the external thread is opened in the second connecting shaft.

[0012] In some embodiments, the transmission assembly includes a transmission pipe and a connecting pipe. The interior of the second connecting shaft is hollow and a first piston is slidably connected thereto. The connecting pipe is connected between the transmission pipe and the second connecting shaft. A second piston is slidably connected inside the transmission pipe. A piston rod is fixed to one side of the second piston. The end of the piston rod away from the second piston extends outward from the transmission pipe and is connected to the clamping member. Hydraulic oil is provided inside the second connecting shaft, the transmission pipe, and the connecting pipe.

[0013] In some embodiments, the clamping member includes a first clamping plate slidably connected in the mounting groove, a second clamping plate fixedly connected to the upper surface of the first clamping plate, the second clamping plate having an L-shaped cross-section, and a return spring connected between the first clamping plate and the mounting base.

[0014] In some embodiments, the lower part of the leveling base is provided with a connecting plate, and a plug block is fixedly connected to the outer side of the connecting plate away from the clamping member. An insertion hole adapted to the plug block is opened on the inner side of the mounting groove.

[0015] In some embodiments, the insert block is externally fixedly connected with an anti-slip pad, the inner surface of the fixing hole is provided with a first anti-slip texture, the lower surface of the fixing block is provided with a pressure groove adapted to the third connecting shaft, and the inner surface of the pressure groove is provided with a second anti-slip texture.

[0016] Compared with the prior art, this utility model provides a BIM-based surveying and setting-out device for roads and bridges, which has the following beneficial effects:

[0017] By setting up the automatic coarse adjustment component, the horizontal state of the mounting base can be roughly adjusted while the tripod is being set up, thereby reducing the difficulty of subsequent leveling through the leveling base. This makes the adjustment of the total station more convenient, quick and easy to operate, and can save the time required for leveling to a certain extent. It is especially suitable for use in environments with large ground flatness, and is therefore more user-friendly for beginners. Moreover, the coarse adjustment process is carried out automatically by gravity without the need for other operations, thus improving the automation of the leveling work to a certain extent.

[0018] By setting the locking component, the automatic coarse adjustment component can be fixed simply by pressing the lever, so that the automatic coarse adjustment component can be quickly locked after the coarse adjustment is completed, which facilitates the subsequent installation of the total station and makes the installation of the total station convenient. This also ensures that the device can achieve automatic coarse leveling without affecting the installation of the total station.

[0019] By setting up locking components, transmission components, and clamping parts, after the total station is placed on the mounting base, the automatic coarse adjustment component can be completely locked by turning the pressure rod. At the same time, the transmission component and clamping parts will also fix the total station on the mounting base, thus achieving the purpose of installing the total station. Moreover, the entire installation process and the locking process of the automatic coarse adjustment component are carried out simultaneously, and the entire operation process is simple and convenient, thus reducing the difficulty of installing the total station to a certain extent.

[0020] Other advantages, objectives and features of this invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be taught from practice of this invention. Attached Figure Description

[0021] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a side view of a partial three-dimensional structure of the present invention;

[0023] Figure 3 This is a side-view three-dimensional structural diagram of the automatic coarse adjustment component;

[0024] Figure 4 This is a cross-sectional view of the connecting seat.

[0025] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle;

[0026] Figure 6 This is a side sectional view of the automatic coarse adjustment component and the locking component.

[0027] Figure 7 A side-view three-dimensional structural diagram of the locking component;

[0028] Figure 8 This is an exploded side view of the three-dimensional structure between the mounting base and the leveling base.

[0029] Figure 9 This is a partial sectional view of the connecting frame in the unlocked state.

[0030] Figure 10 This is a partial side sectional view of the connecting frame in the locked state of the locking component.

[0031] In the diagram: 1. Total station; 2. Tripod; 3. Connecting seat; 4. Automatic coarse adjustment component; 401. First connecting shaft; 402. Second connecting shaft; 4021. Fixing hole; 4022. First anti-slip texture; 403. Rotating block; 404. Third connecting shaft; 405. Connecting frame; 406. Counterweight; 5. Locking component; 501. Pressure rod; 502. Pressure block; 503. Pressure plate; 504. Connecting spring; 505. Insert block; 506. Anti-slip pad; 507. Inclined surface; 508. Fixing block; 5081. Second anti-slip texture; 509. 5010. Protrusion; 5011. External thread; 5012. Threaded hole; 5013. Reset plate; 6. Mounting base; 601. Mounting groove; 602. Insertion hole; 603. Slide groove; 7. Clamping component; 701. First clamping plate; 702. Second clamping plate; 703. Slider; 704. Reset spring; 705. Guide shaft; 8. Transmission assembly; 801. First piston; 802. Push block; 803. Connecting pipe; 804. Transmission pipe; 805. Second piston; 806. Piston rod; 9. Leveling base; 901. Connecting plate; 9011. Insertion block. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] Reference Figure 1-4 A BIM-based surveying and layout device for roads and bridges includes a total station 1 and a tripod 2. A leveling base 9 is installed on the lower part of the total station 1, and a connecting seat 3 is provided on the upper part of the tripod 2. An automatic coarse adjustment component 4 is provided on the connecting seat 3, and an installation seat 6 connected to the leveling base 9 is provided on the upper part of the automatic coarse adjustment component 4.

[0034] The automatic coarse adjustment component 4 includes a first connecting shaft 401 and a second connecting shaft 402 fixed symmetrically within the connecting seat 3, and a rotating block 403 rotatably connected between the first connecting shaft 401 and the second connecting shaft 402. Specifically, the rotating block 403 is sleeved on one end of the first connecting shaft 401 and the second connecting shaft 402 that are close to each other. The lower part of the rotating block 403 is rotatably connected to a third connecting shaft 404 that is perpendicular to the first connecting shaft 401. The outside of the third connecting shaft 404 is fixedly connected to a U-shaped connecting frame 405 fixed to the lower surface of the mounting base 6. The lower part of the connecting frame 405 is fixedly connected to a counterweight 406. The mounting base 6 is located above the connecting seat 3, and there is a gap between the mounting base 6 and the connecting seat 3.

[0035] The first connecting shaft 401 and the second connecting shaft 402 are provided with locking components 5 for fixing the automatic coarse adjustment component 4.

[0036] The upper surface of the mounting base 6 is provided with a mounting groove 601 that is adapted to the leveling base 9. A clamping member 7 is slidably connected inside the mounting groove 601. A transmission component 8 is provided between the clamping member 7 and the locking component 5 to drive the clamping member 7 to slide and clamp and fix the leveling base 9.

[0037] Reference Figure 4 , Figure 6 and Figure 7 The locking assembly 5 includes a pressure rod 501 and a pressure block 502. The pressure rod 501 is shaft-shaped and is inserted through the first connecting shaft 401. The rotating block 403 is hollow with an opening at the top. The pressure block 502 is sleeved on the pressure rod 501. The pressure block 502 is slidably connected to the rotating block 403 along the axial direction of the first connecting shaft 401. A conical insert 505 is fixedly connected to the pressure block 502. One end of the second connecting shaft 402 has a fixing hole 4021 that corresponds to and fits the insert 505.

[0038] A fixed block 508 is slidably connected vertically inside the rotating block 403. The fixed block 508 is sleeved on the upper part of the third connecting shaft 404, and a protrusion 509 is fixedly connected to the upper surface of the fixed block 508. An inclined surface 507 corresponding to the protrusion 509 is fixed on the lower surface of the pressure block 502.

[0039] The insert 505 is externally fixedly connected with an anti-slip pad 506. The inner surface of the fixing hole 4021 is provided with a first anti-slip texture 4022. The lower surface of the fixing block 508 is provided with a pressure groove that is compatible with the third connecting shaft 404. The inner surface of the pressure groove is provided with a second anti-slip texture 5081.

[0040] The pressure rod 501 is fixedly connected to the pressure plate 503 inside the rotating block 403. The inside of the pressure block 502 is hollow with an opening on one side. A connecting spring 504 is connected between the inner side wall of the pressure block 502 and the pressure plate 503. One end of the pressure rod 501 is inserted into the second connecting shaft 402 and has an external thread 5010. The second connecting shaft 402 has a threaded hole 5011 that matches the external thread 5010. A reset plate 5012 is fixed on the pressure rod 501 between the pressure block 502 and the external thread 5010.

[0041] Reference Figure 4-6 The transmission assembly 8 includes a transmission pipe 804 and a connecting pipe 803. The interior of the second connecting shaft 402 is hollow and a first piston 801 is slidably connected thereto. The connecting pipe 803 connects the transmission pipe 804 and the second connecting shaft 402, thereby connecting the interior of the transmission pipe 804 with the interior of the second connecting shaft 402. A second piston 805 is slidably connected inside the transmission pipe 804. A piston rod 806 is fixed to one side of the second piston 805. The end of the piston rod 806 away from the second piston 805 extends outward from the transmission pipe 804 and is connected to the clamping member 7. Hydraulic oil is provided inside the second connecting shaft 402 outside the first piston 801, inside the transmission pipe 804, and inside the connecting pipe 803 outside the second piston 805.

[0042] Reference Figure 5 and Figure 8 The clamping member 7 includes a first clamping plate 701 slidably connected to the mounting groove 601, a second clamping plate 702 fixedly connected to the upper surface of the first clamping plate 701, the second clamping plate 702 having an L-shaped cross-section, a slider 703 fixedly connected to the lower part of the first clamping plate 701, a guide shaft 705 fixedly connected to one side of the slider 703, the guide shaft 705 slidably mounted on the upper part of the mounting base 6, and a return spring 704 sleeved on the outside of the guide shaft 705 connected between the slider 703 and the mounting base 6, and a sliding groove 603 adapted to the slider 703 is provided on the mounting base 6, the slider 703 being slidably mounted in the sliding groove 603.

[0043] Reference Figure 8The lower part of the leveling base 9 is provided with a connecting plate 901. A plug block 9011 is fixedly connected to the outer side of the connecting plate 901 away from the clamping member 7. An insertion hole 602 adapted to the plug block 9011 is opened on the inner side of the mounting groove 601.

[0044] In this invention, before installing the total station 1, the tripod 2 is first erected on the designated ground. At this time, the locking component 5 is not locked to the connecting bracket 405 in the automatic coarse adjustment component 4. The specific state at this time is described in detail below. Figure 9 Then refer to Figure 3 and Figure 4 After the tripod 2 is set up on the ground, if the ground is uneven, the weight of the counterweight 406 will cause the connecting frame 405 and the third connecting shaft 404 to rotate on the rotating block 403 to a vertical position. It will also cause the rotating block 403 to rotate on the first connecting shaft 401 and the second connecting shaft 402 to a vertical position. During this process, the mounting base 6 will also move with the rotation of the connecting frame 405, thereby roughly adjusting the mounting base 6 to a horizontal position.

[0045] Then refer to Figures 9 to 10 Then, by pressing the outer end of the pressure rod 501 towards the second connecting shaft 402, the pressure plate 503 and the connecting spring 504 can push the pressure block 502 to slide in the same direction, thereby inserting the insert block 505 into the fixing hole 4021. At this time, the insert block 505 is tightly inserted into the fixing hole 4021 through the anti-slip pad 506. Moreover, the second connecting shaft 402 can fix the insert block 505 and the pressure block 502 through the fixing hole 4021, the first anti-slip texture 4022 and the anti-slip pad 506, preventing the pressure block 502 from rotating around the axis of the second connecting shaft 402. At this time, the pressure block 502 can also restrict the rotating block 403, and also prevent the rotating block 403 from rotating around the axis of the second connecting shaft 402, thereby fixing the rotating block 403 between the first connecting shaft 401 and the second connecting shaft 402. Furthermore, as the pressure block 502 slides towards the second connecting shaft 402, the inclined surface 507 at the lower part of the pressure block 502 will exert a certain amount of pressure on the protrusion 509, thereby pressing the fixing block 508 downward. At this time, the fixing block 508 will also press tightly onto the third connecting shaft 404 through the second anti-slip texture 5081 on the inner surface of the pressure groove, thereby fixing the third connecting shaft 404 onto the rotating block 403, preventing the connecting frame 405 and the third connecting shaft 404 from rotating on the rotating block 403 around the axis of the third connecting shaft 404, thus fixing the connecting frame 405 and the mounting base 6. The state at this time is as follows. Figure 10 As shown.

[0046] Then, lift the total station 1 and place its lower connecting plate 901 into the mounting slot 601. Slightly slide the total station 1 towards the insertion hole 602 to insert the insertion block 9011 into the insertion hole 602. Since the mounting base 6 is fixed by pressing the pressure rod 501, one end of the external thread 5010 on the pressure rod 501 is in contact with one end of the threaded hole 5011, and the push block 802 passes through the threaded hole 5011 and contacts the first piston 801. Therefore, at this time, the external thread 5010 can be screwed into the threaded hole 5011 by rotating the pressure rod 501, which will cause the pressure rod 501 to continue sliding towards the second connecting shaft 402. In the process, the pressure rod 501 can push the first piston 801 to slide via the push block 802. The first piston 801 can then push the second piston 805 to slide towards the clamping member 7 via hydraulic oil. The second piston 805 will then push the first clamping plate 701 and the second clamping plate 702 towards the connecting plate 901 via the piston rod 806. During this process, the slider 703 can also compress the return spring 704 to a certain extent. The sliding of the first clamping plate 701 until it is pressed tightly against the outside of the connecting plate 901 and the second clamping plate 702 is pressed against the upper side of the connecting plate 901 can fix the connecting plate 901 on the mounting base 6, thereby installing the total station 1 on the mounting base 6. The state at this time is as follows. Figure 4 and Figure 6 As shown.

[0047] During the process of turning the pressure rod 501, the pressure block 502 will no longer slide under the restriction of the second connecting shaft 402, while the pressure plate 503 will continue to slide synchronously and compress the connecting spring 504 to a certain extent until the clamping member 7 clamps the connecting plate 901. At this time, the pressure plate 503 also presses on the pressure block 502. At this time, the pressure rod 501 and the pressure plate 503 can press and fix the pressure block 502 under the action of the external thread 5010 and the threaded hole 5011, thereby completely fixing the connecting frame 405, the mounting base 6 and the clamping member 7. Thus, the installation of the total station 1 can be completed. Then, the level of the total station 1 can be precisely adjusted by turning the three leveling screws on the leveling base 9.

[0048] When the total station 1 needs to be removed, first, reverse the rotation of the pressure rod 501 until the external thread 5010 separates from the threaded hole 5011. Then, pull the pressure rod 501 outward to reset it. During this process, the rebound force of the reset spring 704 will push the clamping part 7 and the various components on the transmission assembly 8 to reset, and then the total station 1 can be removed. Moreover, during the reverse rotation of the pressure rod 501, the connecting spring 504 will slowly rebound, and under its action, the pressure plate 503 will gradually reset and separate from the pressure block 502. Furthermore, during the outward pulling of the pressure rod 501, the pressure rod 501 will pull the insert 505 back to its original position through the reset plate 5012, thereby releasing the fixation of the automatic coarse adjustment assembly 4 and the mounting base 6.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

Claims

1. A BIM-based surveying and layout device for roads and bridges, comprising a total station (1) and a tripod (2), wherein the lower part of the total station (1) is provided with a leveling base (9), characterized in that: The upper part of the tripod (2) is provided with a connecting seat (3), the connecting seat (3) is provided with an automatic coarse adjustment component (4), and the upper part of the automatic coarse adjustment component (4) is provided with a mounting seat (6) connected to the leveling base (9). The automatic coarse adjustment component (4) includes a first connecting shaft (401) and a second connecting shaft (402) fixed symmetrically in the connecting seat (3) and a rotating block (403) rotatably connected between the first connecting shaft (401) and the second connecting shaft (402). The lower part of the rotating block (403) is rotatably connected to a third connecting shaft (404) that is perpendicular to the first connecting shaft (401). The third connecting shaft (404) is fixedly connected to a connecting frame (405) fixed to the lower surface of the mounting base (6). The lower part of the connecting frame (405) is provided with a counterweight (406). The first connecting shaft (401) and the second connecting shaft (402) are provided with locking components (5) for fixing the automatic coarse adjustment component (4); The upper surface of the mounting base (6) is provided with a mounting groove (601) that is compatible with the leveling base (9). A clamping member (7) is slidably connected inside the mounting groove (601). A transmission component (8) is provided between the clamping member (7) and the locking component (5) for driving the clamping member (7) to slide and clamp and fix the leveling base (9).

2. The BIM-based road and bridge surveying and setting-out device according to claim 1, characterized in that: The locking assembly (5) includes a pressure rod (501) and a pressure block (502). The pressure rod (501) is shaft-shaped and is inserted through the first connecting shaft (401). The rotating block (403) is hollow with an opening at the top. The pressure block (502) is disposed on the pressure rod (501) and is slidably connected to the rotating block (403). An insert (505) is fixedly connected to the pressure block (502). One end of the second connecting shaft (402) is provided with a fixing hole (4021) corresponding to the insert (505).

3. The BIM-based road and bridge surveying and setting-out device according to claim 2, characterized in that: The rotating block (403) is internally slidably connected to a fixed block (508), which is sleeved on the upper part of the third connecting shaft (404). The upper surface of the fixed block (508) is fixedly connected to a protrusion (509), and the lower surface of the pressure block (502) is provided with an inclined surface (507) corresponding to the protrusion (509).

4. The BIM-based road and bridge surveying and setting-out device according to claim 3, characterized in that: The pressure rod (501) is fixedly connected to the pressure plate (503) inside the rotating block (403). The inside of the pressure block (502) is hollow with an opening on one side. A connecting spring (504) is connected between the inner wall of the pressure block (502) and the pressure plate (503). One end of the pressure rod (501) is inserted into the second connecting shaft (402) and has an external thread (5010). The second connecting shaft (402) has a threaded hole (5011) that matches the external thread (5010).

5. The BIM-based road and bridge surveying and setting-out device according to claim 4, characterized in that: The transmission assembly (8) includes a transmission pipe (804) and a connecting pipe (803). The interior of the second connecting shaft (402) is hollow and a first piston (801) is slidably connected thereto. The connecting pipe (803) is connected between the transmission pipe (804) and the second connecting shaft (402). A second piston (805) is slidably connected inside the transmission pipe (804). A piston rod (806) is fixed on one side of the second piston (805). The end of the piston rod (806) away from the second piston (805) extends outward from the transmission pipe (804) and is connected to the clamping member (7). Hydraulic oil is provided inside the second connecting shaft (402), the transmission pipe (804), and the connecting pipe (803).

6. The BIM-based road and bridge surveying and setting-out device according to claim 1, characterized in that: The clamping member (7) includes a first clamping plate (701) slidably connected in the mounting groove (601), a second clamping plate (702) fixedly connected to the upper surface of the first clamping plate (701), the cross-sectional shape of the second clamping plate (702) is L-shaped, and a return spring (704) is connected between the first clamping plate (701) and the mounting base (6).

7. The BIM-based road and bridge surveying and setting-out device according to claim 1, characterized in that: The lower part of the leveling base (9) is provided with a connecting plate (901). A plug-in block (9011) is fixedly connected to the side of the connecting plate (901) away from the clamping member (7). An insertion hole (602) adapted to the plug-in block (9011) is opened on the inner side of the mounting groove (601).

8. The BIM-based road and bridge surveying and setting-out device according to claim 3, characterized in that: The insert (505) is fixedly connected to an anti-slip pad (506), the inner surface of the fixing hole (4021) is provided with a first anti-slip texture (4022), and the lower surface of the fixing block (508) is provided with a pressure groove that is compatible with the third connecting shaft (404), and the inner surface of the pressure groove is provided with a second anti-slip texture (5081).

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