Portable surveying and mapping device for civil engineering surveying and mapping

By combining an integrated housing with a lifting mechanism, the total station can be automatically stored and its support structure can be deployed simultaneously, solving the problems of easy damage and inconvenience in operation during transportation, and improving portability and surveying efficiency.

CN224201451UActive Publication Date: 2026-05-05陕西省交通规划设计研究院有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
陕西省交通规划设计研究院有限公司
Filing Date
2026-03-23
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing total station surveying equipment lacks effective protection during relocation and transportation, making it susceptible to damage. Furthermore, its separate support structure increases the burden of carrying and inconvenience of operation, making it difficult to meet the portable and efficient surveying needs of modern civil engineering.

Method used

The integrated housing design, combined with the lifting mechanism and the rotating arm opening and closing mechanism, enables the automatic storage of the total station and the synchronous deployment of the support structure. The motor drives the lead screw to lift and the rotating arm to work together to achieve convenient storage and stable support of the surveying components.

Benefits of technology

It effectively protects surveying equipment, reduces transportation damage, improves operational portability and mobility, and significantly enhances surveying efficiency and ease of operation, making it particularly suitable for engineering surveying scenarios involving frequent site changes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of surveying and mapping devices, and discloses a portable surveying and mapping device for civil engineering surveying and mapping, which comprises a shell, a storage box fixedly mounted at the top end of the shell, a lifting plate slidably connected in the storage box, a surveying and mapping component arranged at the top end of the lifting plate, and a lifting mechanism arranged in the shell. According to the surveying and mapping device, through the integrated design of the storage box and the shell, the surveying and mapping assembly driven by the lifting mechanism is matched to automatically ascend and descend, and convenient storage and protection of the total station are achieved. After surveying and mapping operation is completed, the surveying and mapping assembly can be completely stored in the storage box, and damage caused by bumping, collision or severe weather in the transition transportation process is avoided; meanwhile, due to the integrated structure, the extra carrying burden of an external supporting component is eliminated, an operator only needs to hold the handle to achieve single-person rapid transfer, the maneuverability and portability of surveying and mapping operation are remarkably improved, and the surveying and mapping device is particularly suitable for engineering surveying and mapping scenes needing frequent transition.
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Description

Technical Field

[0001] This utility model relates to the field of surveying and mapping equipment technology, and more specifically, to a portable surveying and mapping device for civil engineering surveying. Background Technology

[0002] Civil engineering surveying is a fundamental part of engineering construction. In engineering sites such as road construction, building construction, and bridge erection, precision surveying instruments such as total stations are frequently used for measurement and setting out, elevation control, and coordinate positioning.

[0003] Existing total station surveying equipment typically employs a configuration where the instrument body and external support structure are separate. Surveyors must carry both the instrument and the tripod / support equipment separately to the work site. During relocation and transportation, the precision instrument is exposed to the external environment for extended periods without effective protective shielding. It is highly susceptible to damage from bumpy roads, accidental collisions during transport, dust intrusion, or sudden rain or snow, which not only affects measurement accuracy but may also cause permanent damage to optical components and electronic parts. Furthermore, the separate support components increase the overall weight and size of the equipment. When working on rugged terrain or climbing, operators must hold the instrument and the support separately with both hands, severely restricting mobility and hindering rapid, single-person operation. This is particularly problematic in engineering surveying scenarios requiring frequent relocation, where repeated loading, unloading, and assembly significantly reduces work efficiency. This configuration no longer meets the modern civil engineering demands for integrated and portable surveying equipment, thus necessitating improvements. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a portable surveying device for civil engineering surveying, which has the advantages of easy storage and protection of surveying components, and the support structure can automatically open and close synchronously with its lifting and lowering, and is easy to transfer.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable surveying device for civil engineering surveying, comprising: a housing, a storage box fixedly installed at the top of the housing, a lifting plate slidably connected inside the storage box, a surveying component provided at the top of the lifting plate, a lifting mechanism provided inside the housing, the lifting mechanism including a fixed plate, a motor fixedly installed at the top of the fixed plate, a threaded sleeve engaged with the output end of the motor, the top of the threaded sleeve rotatably connected to the inside of the storage box, a lead screw threaded inside the threaded sleeve, an opening and closing mechanism provided at the bottom end of the lead screw, and the top of the lead screw fixedly connected to the bottom end of the lifting plate;

[0006] The opening and closing mechanism includes several rotating arms hinged to the outer surface of the housing. A fixed block is fixedly installed on the outer surface of the rotating arm. A moving block is rotatably connected to the bottom end of the lead screw. A pressing shaft is fixedly sleeved inside the moving block at the end away from the lead screw. The pressing shaft is slidably connected to the inside of the fixed block.

[0007] As a preferred technical solution of this utility model, the surveying component includes a total station body, the bottom end of the total station body is fixedly connected to the top end of the lifting plate, and a control panel is provided on the total station body.

[0008] As a preferred embodiment of this utility model, the storage box is provided with several vertical rods inside, and the upper and lower ends of the vertical rods are fixedly connected to the inside of the storage box. The lifting plate is slidably connected to the outer wall of the vertical rods.

[0009] As a preferred embodiment of this utility model, each of the aforementioned rotating arms is slidably connected to a telescopic rod, the bottom end of which is rotatably connected to a foot, and the bottom end of the foot is provided with a protrusion.

[0010] As a preferred embodiment of this utility model, a circular block is fixedly installed on the outer surface of several of the rotating arms. A screw is threaded into the inner surface of the circular block. A pressing block is rotatably connected to one end of the screw near the telescopic rod. The pressing block abuts against the outer surface of the telescopic rod.

[0011] As a preferred embodiment of this utility model, the storage box is hinged with a top cover, and a handle and a lock lug are fixedly installed on the top of the top cover. A plug rod is slidably connected inside the lock lug.

[0012] As a preferred embodiment of this utility model, an arc-shaped block is fixedly installed on the outer surface of the storage box, the insertion rod is slidably connected to the inside of the arc-shaped block, a spring is fixedly installed inside the arc-shaped block, and the end of the insertion rod away from the lock lug is fixedly connected to the spring.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The surveying device of this utility model, through the integrated design of the storage box and the shell, and the automatic lifting and lowering of the surveying components driven by the lifting mechanism, achieves convenient storage and protection of the total station. After the surveying operation is completed, the surveying components can be completely stored inside the storage box, avoiding damage caused by bumps, collisions or bad weather during relocation and transportation; at the same time, the integrated structure eliminates the extra carrying burden of external support components, and the operator only needs to hold the handle to achieve quick single-person transfer, significantly improving the mobility and portability of surveying operations, and is particularly suitable for engineering surveying scenarios that require frequent relocation.

[0015] 2. The surveying device of this utility model achieves synchronous automation of the lifting of the surveying component and the unfolding of the support structure through the linkage design of the motor-driven lead screw lifting and the rotating arm opening and closing mechanism. When the surveying component is raised for operation, the rotating arm automatically unfolds to form stable support; when the surveying component is lowered for storage, the rotating arm automatically retracts, eliminating the need for manual adjustment of the outrigger angle and significantly shortening the on-site unfolding and retraction time. Combined with the adaptive rotation design of the feet, the device can quickly adapt to complex ground conditions, significantly improving the efficiency and ease of operation of surveying operations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the rotating shaft of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the protrusion of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the vertical rod of this utility model;

[0021] Figure 6 This is a cross-sectional view of the arc-shaped block of this utility model;

[0022] Figure 7 This is a schematic diagram of the unfolded structure of this utility model.

[0023] In the diagram: 1. Shell; 2. Storage box; 3. Lifting plate; 4. Fixing plate; 5. Motor; 6. Rotating shaft; 7. Drive gear; 8. Driven gear; 9. Threaded sleeve; 10. Lead screw; 11. Connecting block; 12. Moving block; 13. Extrusion shaft; 14. Fixing block; 15. Rotating arm; 16. Hinge block; 17. Telescopic rod; 18. Round block; 19. Screw; 20. Tightening block; 21. Extrusion block; 22. Round shaft; 23. Foot; 24. Protrusion; 25. Total station body; 26. Control panel; 27. Vertical rod; 28. Top cover; 29. ​​Handle; 30. Locking lug; 31. Insert rod; 32. Arc-shaped block; 33. Paddle; 34. Spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 7 As shown, this utility model provides a portable surveying device for civil engineering surveying, comprising:

[0026] The housing 1 has a storage box 2 fixedly installed at its top. A lifting plate 3 is slidably connected inside the storage box 2. A surveying component is installed at the top of the lifting plate 3. A lifting mechanism is installed inside the housing 1. The lifting mechanism includes a fixed plate 4. A motor 5 is fixedly installed at the top of the fixed plate 4. A threaded sleeve 9 is meshed with the output end of the motor 5. The top of the threaded sleeve 9 is rotatably connected to the inside of the storage box 2. A lead screw 10 is threaded inside the threaded sleeve 9. An opening and closing mechanism is provided at the bottom of the lead screw 10. The top of the lead screw 10 is fixedly connected to the bottom of the lifting plate 3. Specifically, a rotating shaft 6 is fixedly sleeved at the output end of the motor 5. The rotating shaft 6 passes through the inside of the fixed plate 4 and extends to the bottom of the fixed plate 4. A drive gear 7 is fixedly sleeved on the outer surface of the rotating shaft 6. A driven gear 8 is meshed with the side wall of the drive gear 7. The inside of the driven gear 8 is fixedly sleeved on the outer surface of the threaded sleeve 9. An annular groove adapted to the threaded sleeve 9 is opened at the bottom of the storage box 2. The threaded sleeve 9 is slidably connected inside the groove.

[0027] More specifically, the housing 1 serves as the basic load-bearing structure of the device, providing installation space and protection for the internal transmission mechanism; the storage box 2 is fixed to the top of the housing 1, forming an open-top box structure to accommodate the lifting plate 3 and the surveying components. The interior of the storage box 2 is square, and the exterior of the lifting plate 3 is also square. The square cavity inside the storage box 2 matches the shape of the lifting plate 3, achieving both sliding guidance and preventing relative rotation; the lifting mechanism is installed inside the housing 1 via the fixing plate 4, and the motor 5, as the power source, is fixed to the top of the fixing plate 4, with its output end... The drive shaft 6 rotates, which in turn drives the drive gear 7 to rotate. The drive gear 7 meshes with the driven gear 8, which in turn drives the threaded sleeve 9 to rotate in the annular groove at the bottom of the storage box 2. Since the threaded sleeve 9 is threadedly connected to the lead screw 10, and the top of the lead screw 10 is fixedly connected to the lifting plate 3, and the lifting plate 3 is constrained by the square inner cavity of the storage box 2 and cannot rotate, the rotational motion of the threaded sleeve 9 will be converted into the linear lifting motion of the lead screw 10, thereby driving the lifting plate 3 and the surveying components to lift and lower synchronously, realizing the extension and storage of the surveying equipment.

[0028] The opening and closing mechanism includes several rotating arms 15 hinged to the outer surface of the housing 1. A fixed block 14 is fixedly installed on the outer surface of the rotating arms 15. A moving block 12 is rotatably connected to the bottom end of the lead screw 10. A pressing shaft 13 is fixedly sleeved inside the end of the moving block 12 away from the lead screw 10. The pressing shaft 13 is slidably connected to the inside of the fixed block 14. Specifically, several hinge blocks 16 are fixedly installed on the outer surface of the housing 1. The end of the rotating arm 15 near the housing 1 is rotatably connected to the hinge block 16. A connecting block 11 is fixedly installed at the bottom end of the lead screw 10. The moving block 12 is rotatably connected to the outer surface of the connecting block 11.

[0029] More specifically, the opening and closing mechanism is linked with the lifting mechanism. The bottom end of the lead screw 10 is connected to the moving block 12 through the connecting block 11. When the lead screw 10 is raised or lowered, it drives the moving block 12 to move synchronously through the connecting block 11. When the pressing shaft 13 fixed inside the moving block 12 rises, it will press the fixed block 14, thereby pushing the rotating arm 15 to rotate outward around the hinge block 16. When the lead screw 10 is lowered, it drives the rotating arm 15 to retract inward, realizing the automatic unfolding and folding of the support leg mechanism.

[0030] The surveying component includes a total station body 25, the bottom of which is fixedly connected to the top of the lifting plate 3. The total station body 25 is equipped with a control panel 26. Specifically, the surveying component is located at the top of the lifting plate 3. The total station body 25, as the core surveying instrument, moves up and down synchronously with the lifting plate 3, realizing the position conversion from the storage state inside the storage box 2 to the external working state. The control panel 26 is located on the total station body 25, which makes it convenient for operators to directly set surveying parameters and adjust angles.

[0031] The storage box 2 has several vertical rods 27 inside. The upper and lower ends of the vertical rods 27 are fixedly connected to the inside of the storage box 2. The lifting plate 3 is slidably connected to the outer wall of the vertical rods 27. Specifically, due to the design of the vertical rods 27, the lifting plate 3 can be more stable when it moves up and down.

[0032] More specifically, the vertical rod 27 passes through the interior of the lifting plate 3 and is slidably connected to it. The two ends of the vertical rod 27 are fixed to the inner wall of the storage box 2, forming a through-type guide structure. When the lifting plate 3 moves up and down under the drive of the lead screw 10, the vertical rod 27 provides additional guiding constraints to prevent the lifting plate 3 from tilting and swaying, and to ensure the stability and accuracy of the surveying component during the lifting process.

[0033] Among them, several rotating arms 15 are slidably connected to telescopic rods 17 inside, and the bottom end of the telescopic rods 17 is rotatably connected to a foot 23. The bottom end of the foot 23 is provided with a protrusion 24. Specifically, the protrusion 24 adopts a pointed cone design. The telescopic rods 17 are rotatably connected to a round shaft 22 inside, and the round shaft 22 is fixedly sleeved with the inside of the foot 23.

[0034] More specifically, the telescopic rod 17 is slidably connected inside the rotating arm 15 and can be pulled out or retracted from the rotating arm 15 to adjust the support length. The foot 23 is rotatably connected to the bottom end of the telescopic rod 17 through the round shaft 22, so that the foot 23 can adaptively rotate and adjust the angle according to the ground slope to ensure full contact with the ground. The protrusion 24 is set at the bottom end of the foot 23 and adopts a pointed conical structure to insert into the ground or abut against a rough surface to enhance the support friction and grip, and improve the overall anti-overturning stability of the device.

[0035] Among them, a circular block 18 is fixedly installed on the outer surface of several rotating arms 15, and a screw 19 is threaded inside the circular block 18. A pressing block 21 is rotatably connected to the end of the screw 19 near the telescopic rod 17. The pressing block 21 abuts against the outer surface of the telescopic rod 17. Specifically, a turning block 20 is fixedly installed at the end of the screw 19 away from the telescopic rod 17.

[0036] More specifically, the circular block 18 is fixed to the outer surface of the rotating arm 15, the screw 19 is threaded into the inside of the circular block 18, the tightening block 20 is fixed to the outer end of the screw 19 for easy operation, and the pressing block 21 is rotatably connected to the inner end of the screw 19 and abuts against the outer surface of the telescopic rod 17. When the tightening block 20 is turned, the screw 19 rotates and moves axially within the circular block 18, causing the pressing block 21 to press against or disengage from the surface of the telescopic rod 17, thereby achieving rapid locking and releasing of the extension length of the telescopic rod 17.

[0037] The storage box 2 is hinged to a top cover 28. A handle 29 and a lock lug 30 are fixedly installed on the top of the top cover 28. A plug rod 31 is slidably connected inside the lock lug 30. Specifically, the top cover 28 is hinged to the top of the storage box 2 and is used to open or close the top opening of the storage box 2. The handle 29 is fixed to the top of the top cover 28 so that the operator can easily carry the entire device by hand. The lock lug 30 is fixed to the top of the top cover 28 and cooperates with the plug rod 31 to form a locking structure. When the top cover 28 is closed, inserting the plug rod 31 can lock the position of the top cover 28 and prevent accidental opening during transportation.

[0038] Among them, an arc-shaped block 32 is fixedly installed on the outer surface of the storage box 2, the insertion rod 31 is slidably connected to the inside of the arc-shaped block 32, and a spring 34 is fixedly installed inside the arc-shaped block 32. The end of the insertion rod 31 away from the lock lug 30 is fixedly connected to the spring 34. Specifically, a paddle 33 is slidably connected inside the arc-shaped block 32. One side of the paddle 33 is fixedly connected to the insertion rod 31, and the side of the paddle 33 away from the insertion rod 31 is fixedly connected to the spring 34.

[0039] More specifically, the arc-shaped block 32 is fixed to the outer surface of the storage box 2, and the lever 33 is slidably connected inside the arc-shaped block 32. One side of the lever 33 is fixedly connected to the insertion rod 31, and the other side is fixedly connected to the spring 34. When the lever 33 is moved, the lever 33 compresses the spring 34 and drives the insertion rod 31 to disengage from the lock nose 30, thereby unlocking. After the lever 33 is released, the spring 34 returns to its original position and pushes the lever 33 and the insertion rod 31 to move in the opposite direction, so that the insertion rod 31 is reinserted into the lock nose 30, thereby achieving automatic locking.

[0040] Working principle and usage process of this utility model:

[0041] First, the operator lifts the entire device and moves it to the target position by holding the handle 29. At this time, since the insertion rod 31 is inserted into the lock nose 30, the top cover 28 remains closed to ensure transportation safety. Then, the operator moves the lever 33 to slide it along the inside of the arc block 32. At this time, the spring 34 is compressed and stores elastic potential energy. At the same time, the insertion rod 31 is disengaged from the lock nose 30 under the action of the lever 33, thereby releasing the lock on the top cover 28. Then, the operator pulls the handle 29 to rotate the top cover 28 around the hinge point with the storage box 2, thereby opening the top opening of the storage box 2.

[0042] Afterwards, the operator lifts the entire device by holding the bottom of the storage box 2 and starts the motor 5. At this time, the rotating shaft 6 rotates under the drive of the output end of the motor 5, and drives the drive gear 7 fixed on its outer surface to rotate synchronously. Since the drive gear 7 and the driven gear 8 mesh with each other, the driven gear 8 drives the threaded sleeve 9 to rotate in the annular groove at the bottom of the storage box 2. At the same time, since the inside of the threaded sleeve 9 is threadedly connected to the lead screw 10, and the top of the lead screw 10 is fixedly connected to the lifting plate 3, and the lifting plate 3 is square in shape and slides inside the square cavity of the storage box 2 and is subject to anti-rotation constraint, when the threaded sleeve 9 rotates, the lead screw 10 will not rotate with it but will convert the rotational motion into an upward linear motion, thereby driving the lifting plate 3 to slide upward along the inside of the storage box 2. At this time, the total station body 25 extends out of the inside of the storage box 2 under the drive of the lifting plate 3.

[0043] At the same time, when the lead screw 10 moves upward, its bottom end drives the moving block 12 to rise synchronously through the connecting block 11, so that the extrusion shaft 13 fixed inside the moving block 12 generates an upward extrusion force on the inside of the fixed block 14. Since the fixed block 14 is fixed to the outer surface of the rotating arm 15, and one end of the rotating arm 15 is hinged to the housing 1 through the hinge block 16, the rotating arm 15 rotates outward and unfolds with the hinge block 16 as the axis under the action of the extrusion force, gradually changing from a vertically retracted state to a supported state.

[0044] After the rotating arm 15 is fully extended, the operator turns the turning block 20 to rotate the screw 19 inside the circular block 18, causing the pressing block 21, which is rotatably connected to the inner end of the screw 19, to disengage from the contact with the outer surface of the telescopic rod 17. Then, the telescopic rod 17 is pulled out from inside the rotating arm 15 to a suitable length. Afterward, the turning block 20 is turned in the opposite direction to make the pressing block 21 press against the telescopic rod 17 again to lock its extension length. At this time, since the foot 23 is rotatably connected to the bottom end of the telescopic rod 17 through the circular shaft 22, the foot 23 can adaptively rotate and adjust its angle according to the ground slope to ensure full contact with the ground. At the same time, since the bottom end of the foot 23 is provided with a protrusion 24 with a pointed cone design, it effectively enhances the grip and friction coefficient with the ground. Finally, the operator sets the surveying parameters and adjusts the angle of the total station body 25 through the control panel 26, and can start the surveying operation.

[0045] In addition, since the two ends of the vertical rod 27 are fixed to the inner wall of the storage box 2 and are slidably connected to the inside of the lifting plate 3, it provides additional guiding constraints for the lifting movement of the lifting plate 3, ensuring the stability and accuracy of the total station body 25 in the working state.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable surveying device for civil engineering surveying, characterized in that, include: A housing (1) has a storage box (2) fixedly installed at its top. A lifting plate (3) is slidably connected inside the storage box (2). A surveying component is provided at the top of the lifting plate (3). A lifting mechanism is provided inside the housing (1). The lifting mechanism includes a fixed plate (4). A motor (5) is fixedly installed at the top of the fixed plate (4). A threaded sleeve (9) is engaged with the output end of the motor (5). The top of the threaded sleeve (9) is rotatably connected to the inside of the storage box (2). A lead screw (10) is threaded inside the threaded sleeve (9). An opening and closing mechanism is provided at the bottom end of the lead screw (10). The top of the lead screw (10) is fixedly connected to the bottom end of the lifting plate (3). The opening and closing mechanism includes several rotating arms (15) hinged to the outer surface of the housing (1). A fixed block (14) is fixedly installed on the outer surface of the rotating arm (15). A moving block (12) is rotatably connected to the bottom end of the lead screw (10). A pressing shaft (13) is fixedly sleeved inside the moving block (12) at the end away from the lead screw (10). The pressing shaft (13) is slidably connected to the inside of the fixed block (14).

2. The portable surveying device for civil engineering surveying according to claim 1, characterized in that: The surveying component includes a total station body (25), the bottom of which is fixedly connected to the top of the lifting plate (3), and a control panel (26) is provided on the total station body (25).

3. The portable surveying device for civil engineering surveying according to claim 1, characterized in that: The storage box (2) is provided with several vertical rods (27) inside. The upper and lower ends of the vertical rods (27) are fixedly connected to the inside of the storage box (2). The lifting plate (3) is slidably connected to the outer wall of the vertical rods (27).

4. The portable surveying device for civil engineering surveying according to claim 1, characterized in that: Each of the aforementioned rotating arms (15) has a telescopic rod (17) slidably connected inside. The bottom end of the telescopic rod (17) is rotatably connected to a foot (23), and the bottom end of the foot (23) is provided with a protrusion (24).

5. A portable surveying device for civil engineering surveying according to claim 4, characterized in that: A circular block (18) is fixedly installed on the outer surface of several of the rotating arms (15). A screw (19) is threaded inside the circular block (18). A pressing block (21) is rotatably connected to one end of the screw (19) near the telescopic rod (17). The pressing block (21) abuts against the outer surface of the telescopic rod (17).

6. A portable surveying device for civil engineering surveying according to claim 1, characterized in that: The storage box (2) is hinged with a top cover (28), and a handle (29) and a lock nose (30) are fixedly installed on the top of the top cover (28). A plug rod (31) is slidably connected inside the lock nose (30).

7. A portable surveying device for civil engineering surveying according to claim 6, characterized in that: An arc-shaped block (32) is fixedly installed on the outer surface of the storage box (2). The insertion rod (31) is slidably connected to the inside of the arc-shaped block (32). A spring (34) is fixedly installed inside the arc-shaped block (32). The end of the insertion rod (31) away from the lock nose (30) is fixedly connected to the spring (34).