Ground levelness surveying and mapping instrument for urban construction planning surveying and mapping

Abstract

The utility model belongs to the technical field of surveying instruments, and particularly relates to a ground levelness surveying instrument for urban construction planning surveying and mapping. Comprising a chassis, a triangular supporting frame is arranged on the chassis, and a surveying instrument secondary fine adjustment mechanism is arranged on the chassis. Through structural improvement and optimization, after the triangular supporting frame is opened and fixed, the spatial position of the fixing plate can be adjusted, due to the particularity of the structure, the fixing plate can be kept in the horizontal position in the adjusting process, the overall operation efficiency is higher, and operation is more convenient.

Description

Technical Field

[0001] This utility model belongs to the field of surveying instrument technology, specifically relating to a ground level surveying instrument for urban planning surveying. Background Technology

[0002] Urban planning and surveying projects often require the use of leveling instruments. The work involves measuring space and topography, and organizing and collecting various spatial and topographical information. Surveying engineers are needed to measure relevant projects before construction and after completion to ensure project quality.

[0003] As disclosed in the publication (announcement) number CN220891722U, this utility model relates to the field of surveying instrument technology and discloses a ground level surveying instrument for urban planning surveying, including a fixed tube, an upper support, a lower support, and three fixed feet. The bottom end of the chassis is vertically connected to the fixed tube. The upper support is slidably sleeved on the outside of the fixed tube. The lower support is welded to the bottom end of the fixed tube. The fixed feet are hinged to the upper support. A first support foot is slidably inserted inside the fixed foot. A second support foot is movably connected inside the first support foot. A handle is connected to the side of the second support foot. The handle drives the second support foot to slide. When working on hard ground, the fixed feet are unfolded, the first support foot inside the fixed feet is moved, and the first support foot and the moving handle are locked with fixing bolts. When working on soft or muddy ground, the dust cover is opened, the stabilizing cover is loosened, the second support foot is moved out, and the waterproof cloth is unfolded. The structure is simple and easy to use.

[0004] Analysis revealed that the proposed solution lacks fine-tuning capabilities for the surveying instrument itself after positioning, resulting in poor error correction capabilities and requiring a significant amount of time for the initial positioning process. To address these issues, the solution needs to be optimized and improved. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model provides a ground level surveying instrument for urban planning and mapping; after the support is opened, it can be finely adjusted, which greatly reduces the preparation time and improves the efficiency of use.

[0006] This utility model provides a ground level surveying instrument for urban planning and mapping, including a chassis. A triangular support frame is mounted on the chassis, and a secondary fine-tuning mechanism for the surveying instrument is also mounted on the chassis. The secondary fine-tuning mechanism includes three supports, a first support, a second support, and a third support, evenly arranged on the chassis. Each of the three supports is hinged to a connecting shaft. The first and second supports have fixing components corresponding to the connecting shafts. A connecting rod is hinged to the first connecting shaft, and a second connecting shaft is hinged to the connecting rod. A fourth support is hinged to the second connecting shaft. A movable ring is fixedly installed in the center. A sleeve rod is symmetrically fixedly installed on the movable ring. A movable rod is inserted into the sleeve rod. A fixed plate is fixedly installed on the movable rod. A bracket five is fixedly installed at the lower end of the fixed plate. A connecting shaft three is hinged to the bracket five. A bracket six is ​​fixedly installed on the chassis. A connecting shaft four is hinged to the bracket six. A telescopic rod is hinged to the connecting shaft four. A knob one is rotatably connected to the telescopic rod. A screw one is slidably connected to the telescopic rod. The screw one is threadedly connected to the knob one. The upper end of the screw one is hinged to the connecting shaft three.

[0007] Furthermore, the fixing component includes a screw rod two rotatably connected to bracket one and bracket two, a knob two fixedly mounted on the screw rod two, a fastening nut threadedly connected to the screw rod two, and the screw rod two fixedly connected to the connecting shaft one.

[0008] Furthermore, the triangular support frame includes a first support rod that is uniformly hinged to the chassis, a second support rod that is slidably connected to the first support rod, a first support rod that is symmetrically provided with positioning holes, a second support rod that is inserted into the second support rod and the positioning pin that fits into the positioning hole, an auxiliary rod that is hinged to the first support rod, a connecting block that is hinged between the auxiliary rods, a sliding rod that is fixedly installed on the lower side of the chassis and the sliding rod that is slidably connected to the connecting block, and a bolt that is threaded onto the connecting block.

[0009] Furthermore, a limiting plate is fixedly installed at the lower end of the slide rod.

[0010] The beneficial effects of this utility model are:

[0011] Through structural improvements and optimizations, this utility model allows for adjustment of the fixed plate's spatial position after the triangular support frame is opened and fixed. Due to the special nature of the structure, the fixed plate remains in a horizontal position during the adjustment process, resulting in higher overall operational efficiency and greater ease of operation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the ground level surveying instrument for urban planning and mapping of this utility model.

[0013] Figure 2 This is a top view of the secondary fine-tuning mechanism of the ground leveling instrument for urban planning surveying of this utility model.

[0014] Figure 3 This is a bottom view of the secondary fine-tuning mechanism of the ground leveling instrument for urban planning surveying of this utility model.

[0015] Figure 4 This is a schematic diagram of area A of the ground level surveying instrument for urban planning and mapping of this utility model.

[0016] As shown in the figure:

[0017] 1. Chassis; 2. Bracket 1; 3. Bracket 2; 4. Bracket 3; 5. Connecting shaft 1; 6. Connecting rod; 7. Connecting shaft 2; 8. Bracket 4; 9. Movable ring; 10. Sleeve rod; 11. Movable rod; 12. Fixing plate; 13. Bracket 5; 14. Connecting shaft 3; 15. Bracket 6; 16. Connecting shaft 4; 17. Telescopic rod; 18. Knob 1; 19. Screw 1; 20. Screw 2; 21. Knob 2; 22. Fastening nut; 23. Support rod 1; 24. Support rod 2; 25. Positioning hole; 26. Positioning pin; 27. Auxiliary rod; 28. Connecting block; 29. ​​Sliding rod; 30. Bolt; 31. Limiting plate. Detailed Implementation

[0018] 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.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Please refer to the accompanying diagrams in all instruction manuals:

[0021] A ground level surveying instrument for urban planning and mapping includes a chassis 1, a triangular support frame on the chassis 1, and a secondary fine-tuning mechanism for the surveying instrument on the chassis 1.

[0022] The secondary fine-tuning mechanism of the surveying instrument includes brackets 2, 3, and 4 evenly arranged on the chassis 1. Each bracket is hinged to a connecting shaft 5. Brackets 2 and 3 have fixing components corresponding to connecting shafts 5. A connecting rod 6 is hinged to connecting shaft 5, and a connecting shaft 7 is hinged to connecting rod 6. A bracket 8 is hinged to connecting shaft 7. A movable ring 9 is fixedly installed between brackets 4 and 8. Sleeve rods 10 are symmetrically fixedly installed on the movable ring 9, and flexible rods 10 are inserted into the sleeve rods 10. A movable rod 11 is fixedly mounted with a fixed plate 12. A bracket 5 13 is fixedly mounted at the lower end of the fixed plate 12. A connecting shaft 3 14 is hinged to the bracket 5 13. A bracket 6 15 is fixedly mounted on the chassis 1. A connecting shaft 4 16 is hinged to the bracket 6 15. A telescopic rod 17 is hinged to the connecting shaft 4 16. A knob 18 is rotatably connected to the telescopic rod 17. A screw 19 is slidably connected to the telescopic rod 17. The screw 19 is threadedly connected to the knob 18. The upper end of the screw 19 is hinged to the connecting shaft 3 14.

[0023] As described above, brackets 1-2, 2-3, and 3-4, together with connecting shaft 1-5 and connecting rod 6, form a structure similar to a universal joint, enabling rotation in all directions. The same applies to the upper movable ring 9, ensuring that the movable ring 9 is in a horizontal position. By controlling the extension and retraction of screw 19 through knob 1-18, the length of telescopic rod 17 and screw 1-19 can be adjusted, thereby controlling the height of fixed plate 12 and enabling secondary fine-tuning of the horizontal surveying instrument located on fixed plate 12.

[0024] As a technical optimization of this utility model, the fixing component includes a screw rod 20 rotatably connected to the bracket 1 2 and the bracket 2 3, a knob 21 fixedly installed on the screw rod 20, a fastening nut 22 threadedly connected to the screw rod 20, and the screw rod 20 fixedly connected to the connecting shaft 1 5.

[0025] As can be seen from the above description, rotating the fastening nut 22 can reduce the distance between the screw 20 and the fastening nut 22, thereby increasing the friction between the fastening nut 22 and the bracket 2 and bracket 3, preventing the screw 20 from rotating and thus fixing the angle of the connecting shaft 5.

[0026] As a technical optimization of this utility model, the triangular support frame includes a support rod 23 that is uniformly hinged to the chassis 1, a support rod 24 that is slidably connected to the support rod 23, positioning holes 25 that are symmetrically provided on the support rod 23, a positioning pin 26 that is inserted into the support rod 24, the positioning pin 26 and the positioning hole 25 are mutually engaged, an auxiliary rod 27 that is hinged to the support rod 24, a connecting block 28 that is hinged between the auxiliary rods 27, a sliding rod 29 that is fixedly installed on the lower side of the chassis 1, the sliding rod 29 and the connecting block 28 being slidably connected, and a bolt 30 that is threaded onto the connecting block 28;

[0027] As described above, moving the connecting block 28 down along the slide bar 29 can open the auxiliary rod 27, allowing the support rod 23 to open to a certain angle. By adjusting the angle of the support rod 23, the height of the chassis 1 can be controlled. If a higher height is required, the support rod 24 can be lowered and connected to the positioning hole 25 via the positioning pin 26, thus fixing the support rod 24 to the support rod 23. After the height is determined, the bolt 30 is rotated to fix the connecting block 28 and the slide bar 29 using friction.

[0028] As a technical optimization of this utility model, a limiting plate 31 is fixedly installed at the lower end of the slide bar 29;

[0029] As can be seen from the above description, the limiting plate 31 can prevent the connecting block 28 from disengaging from the slide bar 29.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A ground leveling instrument for urban planning surveying, including a chassis, characterized in that: The chassis is equipped with a triangular support frame and a secondary fine-tuning mechanism for the surveying instrument. The secondary fine-tuning mechanism includes three supports (a first, a second, and a third) evenly distributed on the chassis. Each of the supports is hinged to a connecting shaft (a first-generation component). Supports a first and a second are equipped with fixing components corresponding to the connecting shafts. A connecting rod is hinged to the connecting shaft, and a second connecting shaft is hinged to the connecting rod. A fourth support is hinged to the second connecting shaft. A movable ring is fixedly installed between the four supports. A sleeve rod is symmetrically fixedly installed on the upper part. A movable rod is inserted and connected to the sleeve rod. A fixed plate is fixedly installed on the movable rod. A bracket five is fixedly installed at the lower end of the fixed plate. A connecting shaft three is hinged to the bracket five. A bracket six is ​​fixedly installed on the chassis. A connecting shaft four is hinged to the bracket six. A telescopic rod is hinged to the connecting shaft four. A knob one is rotatably connected to the telescopic rod. A screw one is slidably connected to the telescopic rod. The screw one is threadedly connected to the knob one. The upper end of the screw one is hinged to the connecting shaft three.

2. The ground leveling instrument for urban planning surveying according to claim 1, characterized in that: The fixing component includes a screw rod 2 rotatably connected to bracket 1 and bracket 2, a knob 2 fixedly installed on screw rod 2, a fastening nut threadedly connected to screw rod 2, and screw rod 2 fixedly connected to connecting shaft 1.

3. The ground leveling instrument for urban planning surveying according to claim 1, characterized in that: The triangular support frame includes a first support rod that is uniformly hinged to the chassis. A second support rod is slidably connected to the first support rod. The first support rod has symmetrically arranged positioning holes. A positioning pin is inserted into the second support rod, and the positioning pin and the positioning hole are mutually engaged. An auxiliary rod is hinged to the first support rod. A connecting block is hinged between the auxiliary rods. A sliding rod is fixedly installed on the lower side of the chassis. The sliding rod is slidably connected to the connecting block. A bolt is threaded onto the connecting block.

4. The ground leveling instrument for urban planning surveying according to claim 3, characterized in that: A limit plate is fixedly installed at the lower end of the slide bar.

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