A surveying device for land engineering

Abstract

The utility model relates to land surveying and mapping equipment technical field discloses a surveying and mapping device for land engineering, including fixed disc, the lower side periphery fixed connection of fixed disc has connecting piece, the inboard rotation of connecting piece is connected with support leg, the lower end outside movable joint of support leg has movable sleeve, the bottom fixed connection of movable sleeve has the peg, the lower side middle part of fixed disc is connected with connecting rod, the bottom fixed connection of connecting rod has connecting plate, the end part mounting of connecting plate has the clamping groove. In the utility model, the device support is unfolded, and the support rod, the connecting rod and the support leg form a stable triangular structure, the geometric stability of triangle is used to effectively resist external force interference, avoids the device to sway in the surveying and mapping process, and the process of unfolding and storage does not need complicated tool, and the operation step is simple and easy to understand, and the time of device layout and storage is saved greatly.

Description

Technical Field

[0001] This utility model relates to the field of land surveying equipment technology, and in particular to a land engineering surveying device. Background Technology

[0002] In land engineering surveying operations, the stability, adjustment accuracy, and portability of surveying equipment directly affect the accuracy of measurement data and operational efficiency, and are one of the core pieces of equipment to ensure the smooth progress of engineering planning, construction, and acceptance work.

[0003] Traditional surveying devices rely on three support legs for support during surveying. However, since there are no limiting points between the three legs, a "split" phenomenon can easily occur, meaning that one or more of the legs become loose and displaced. Once the legs "split," the level plate can easily become tilted, which in turn will prevent the surveying instrument from maintaining a level position. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a land engineering surveying device that requires no complex tools for deployment and storage, and whose operation steps are simple and easy to understand, thus significantly saving time in device deployment and storage.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A land surveying device includes a fixed plate. A connector is fixedly connected to the lower periphery of the fixed plate. A support leg is rotatably connected to the inner side of the connector. A movable sleeve is movably connected to the lower end of the support leg. A pin is fixedly connected to the bottom of the movable sleeve. A connecting rod is threadedly connected to the lower center of the fixed plate. A connecting plate is fixedly connected to the bottom of the connecting rod. A slot is installed at the end of the connecting plate. The lower end of the movable sleeve is embedded in the inner side of the slot to fix the movable sleeve in a retracted state. A support rod is rotatably connected to the upper periphery of the connecting plate. A rotating component is rotatably connected to the upper end of the support rod. A fixing ring is fixedly connected to the end of the rotating component. The fixing ring is sleeved on the upper outside of the connecting plate. A first fastener for fixing is threadedly connected to the middle of the fixing ring. A surveying instrument is mounted on the upper side of the fixed plate through an adjustment assembly.

[0006] Furthermore, a T-shaped locking block is provided at the end of the connecting plate, and a fixing clip is provided at the end of the locking slot near the connecting plate. The locking slot is installed on the connecting plate by cooperating with the T-shaped locking block through the fixing clip.

[0007] Furthermore, the adjustment assembly includes a turntable rotatably connected to the upper side of the fixed disk via a damping shaft. Side plates are fixedly connected to the upper sides of the left and right ends of the turntable. A mounting plate is rotatably connected to the upper ends of the side plates. A mounting groove is fixedly connected to the upper side of the mounting plate. The surveying instrument is installed inside the mounting groove.

[0008] Furthermore, an arc-shaped plate is fixedly connected to the lower center of the mounting plate, and a toothed ring is fixedly connected to the lower side of the arc-shaped plate.

[0009] Furthermore, a U-shaped frame is fixedly connected to the upper center of the turntable, a rotating shaft is rotatably connected to the center of the U-shaped frame, and a gear is fixedly connected to the inner side of the U-shaped frame outside the rotating shaft. The outer side of the gear is meshed with the lower side of the gear ring.

[0010] Furthermore, the left and right ends of the rotating shaft pass through the lower end of the side plate and are fixedly connected to rotating wheels.

[0011] Furthermore, each of the opposite sides of the lower end of the side plate is fixedly connected with a fixing ear, and the lower side of the fixing ear is in close contact with the outer wall of the wheel.

[0012] Furthermore, a second fastener is threaded into the middle of the fixing lug for fixing the rotating wheel.

[0013] This utility model has the following beneficial effects: 1. In this utility model, after the device support is unfolded, the support rod, connecting rod and support leg form a stable triangular structure. The geometric stability of the triangle effectively resists external interference and avoids the device shaking during the surveying process. Moreover, the unfolding and storage process does not require complicated tools, and the operation steps are simple and easy to understand, which greatly saves the time of device deployment and storage.

[0014] 2. In this utility model, the turntable is connected to the fixed plate through a damping shaft. It can rotate flexibly to adjust the surveying direction and maintain the stability of the adjusted position by relying on the damping characteristics. No additional locking structure is required. Rotating the turntable can drive the gear ring and the arc plate to move through the rotating shaft, so as to achieve fine adjustment of the tilt angle of the mounting plate. This ensures that the surveying instrument can quickly reach the horizontal state or the required measurement angle, and is suitable for surveying scenarios with different slopes and orientations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a land engineering surveying device proposed in this utility model. Figure 2 This is a schematic diagram of the land engineering surveying device proposed in this utility model. Figure 3 This is a schematic diagram of the support rod of a land engineering surveying device proposed in this utility model; Figure 4This is a schematic diagram of the connecting plate of a land engineering surveying device proposed in this utility model; Figure 5 This is a schematic diagram of the toothed ring of a land engineering surveying device proposed in this utility model.

[0016] Legend: 1. Fixed plate; 2. Connector; 3. Support leg; 4. Movable sleeve; 5. Pin; 6. Connecting rod; 7. Connecting plate; 8. Slot; 9. T-shaped block; 10. Fixing clamp; 11. Support rod; 12. Rotating component; 13. Fixing ring; 14. First fastener; 15. Turntable; 16. Side plate; 17. Mounting plate; 18. Mounting groove; 19. Surveying instrument; 20. Arc plate; 21. Gear ring; 22. U-shaped frame; 23. Gear; 24. Rotating shaft; 25. Rotating wheel; 26. Fixing lug; 27. Second fastener. Detailed Implementation

[0017] 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.

[0018] Reference Figures 1-4 This utility model provides an embodiment of a land engineering surveying device, comprising a fixed plate 1, a connector 2 fixedly connected to the lower periphery of the fixed plate 1, a support leg 3 rotatably connected to the inner side of the connector 2, a movable sleeve 4 movably connected to the lower end of the support leg 3, a pin 5 fixedly connected to the bottom of the movable sleeve 4, a connecting rod 6 threadedly connected to the lower center of the fixed plate 1, a connecting plate 7 fixedly connected to the bottom of the connecting rod 6, a groove 8 installed at the end of the connecting plate 7, and the lower end of the movable sleeve 4 embedded in the inner side of the groove 8 for fixing the movable sleeve 4 in a retracted state. A support rod 11 is rotatably connected to the upper periphery of the connecting plate 7. A rotating part 12 is rotatably connected to the upper end of the support rod 11. A fixing ring 13 is fixedly connected to the end of the rotating part 12. The fixing ring 13 is sleeved on the upper outer side of the connecting plate 7. A first fastener 14 for fixing is threadedly connected to the middle of the fixing ring 13. A surveying instrument 19 is installed on the upper side of the fixing plate 1 through an adjustment assembly. A T-shaped card block 9 is provided at the end of the connecting plate 7. A fixing clip 10 is provided at the end of the card slot 8 near the connecting plate 7. The card slot 8 is installed on the connecting plate 7 through the cooperation of the fixing clip 10 and the T-shaped card block 9.

[0019] Before surveying, the device support needs to be unfolded to form a stable support. First, pull the movable sleeve 4 outward to separate it from the slot 8 on the connecting plate 7, releasing the fixation restriction on the support leg 3. At this time, the support leg 3 can rotate outward around the connection point with the lower outer peripheral connecting piece 2 of the fixed plate 1. During the rotation of the support leg 3, the support rod 11 on the upper outer peripheral of the connecting plate 7 plays a role simultaneously. The lower end of the support rod 11 is rotatably connected to the connecting plate 7, and the upper end is connected to the fixing ring 13 on the upper end of the connecting plate 7 through the rotating piece 12. The fixing ring 13 can be locked in position by the first fastener 14. At this time, the support rod 11, the connecting rod 6 and the support leg 3 form a triangular structure. Since the lengths of the support rod 11 and the connecting rod 6 are fixed, as the angle between the support leg 3 and the connecting rod 6 increases, the support leg 3 can adjust its total length through the telescopic cooperation with the movable sleeve 4 to ensure that the triangular structure is always stable. Finally, insert the pin 5 at the bottom of the movable sleeve 4 into the ground to complete the unfolding and fixing of the support, providing a stable support for the surveying instrument 19.

[0020] After the survey is completed, the device needs to be retracted and stored. Press the movable sleeve 4 inward to make the support leg 3 rotate inward around the connector 2. At the same time, the extended part of the support leg 3 gradually retracts into the movable sleeve 4, shortening the overall length of the support structure. When the support leg 3 retracts to a state close to the connecting rod 6, the lower end of the movable sleeve 4 is inserted into the slot 8 at the end of the connecting plate 7. The slot is fixed by the fixing clip 10 and the T-shaped clip 9 of the connecting plate 7, thereby limiting the retracted movable sleeve 4 and support leg 3, completing the device retraction, which is convenient for subsequent handling and storage.

[0021] Reference Figure 1 , Figure 2 and Figure 5 The adjustment assembly includes a turntable 15 rotatably connected to the upper side of a fixed disk 1 via a damping shaft. Side plates 16 are fixedly connected to the upper sides of both ends of the turntable 15. A mounting plate 17 is rotatably connected to the upper ends of the side plates 16. A mounting groove 18 is fixedly connected to the upper side of the mounting plate 17. A surveying instrument 19 is installed inside the mounting groove 18. An arc-shaped plate 20 is fixedly connected to the lower center of the mounting plate 17. A toothed ring 21 is fixedly connected to the lower side of the arc-shaped plate 20. A U-shaped frame 22 is fixedly connected to the upper center of the turntable 15. A rotating shaft 24 is rotatably connected to the middle of the U-shaped frame 22. A gear 23 is fixedly connected to the inner side of the U-shaped frame 22 outside the rotating shaft 24. The outer side of the gear 23 is meshed with the lower side of the gear ring 21. The left and right ends of the rotating shaft 24 pass through the lower end of the side plate 16 and are fixedly connected to the rotating wheel 25. A fixing ear 26 is fixedly connected to the opposite side of the lower end of the side plate 16. The lower side of the fixing ear 26 is close to the outer wall of the rotating wheel 25. A second fastener 27 is threadedly connected to the middle of the fixing ear 26 for fixing the rotating wheel 25.

[0022] After the bracket is fixed, the direction and angle of the surveying instrument 19 are adjusted by adjusting the components to ensure measurement accuracy. The adjustment process is divided into two parts: direction adjustment and angle adjustment. When adjusting the direction, the surveying instrument 19 is fixed on the mounting plate 17 through the mounting slot 18. The mounting plate 17 is rotatably connected to the side plate 16 on the turntable 15. The turntable 15 is rotatably connected to the upper side of the fixed plate 1 through the damping shaft. Directly rotating the turntable 15 can drive the mounting plate 17 and the surveying instrument 19 above to rotate synchronously, so as to realize the flexible adjustment of the surveying direction. The damping shaft can help maintain the stability of the adjusted direction.

[0023] To keep the surveying instrument 19 horizontal or to achieve the required measurement angle, the tilt of the mounting plate 17 needs to be adjusted. The bottom of the arc-shaped plate 20 fixed in the middle of the lower side of the mounting plate 17 is provided with a toothed ring 21. The toothed ring meshes with the gear 23 in the U-shaped frame 22 on the turntable 15. The gear 23 is sleeved on the rotating shaft 24 that passes through the U-shaped frame 22. The two ends of the rotating shaft pass through the side plate 16 and are connected to the rotating wheel 25. Rotating the rotating wheel 25 can drive the rotating shaft 24 and the gear 23 to rotate. The gear drives the arc-shaped plate 20 to drive the mounting plate 17 to rotate around the connection with the side plate 16 through the meshing transmission of the gear and the toothed ring 21, thereby adjusting the angle of the surveying instrument 19. After the angle is adjusted, the second fastener 27 on the fixing lug 26 at the lower end of the side plate 16 is rotated so that the end of the fastener is in close contact with the outer wall of the rotating wheel 25. The position of the rotating wheel is locked by friction, thereby fixing the angle of the surveying instrument 19.

[0024] Working principle: Before surveying, pull the movable sleeve 4 outward to separate it from the fixing slot 8, allowing the support leg 3 to rotate through its connection with the connector 2. A triangle is formed between the support rod 11, the connecting rod 6, and the support leg 3. The lengths of the support rod 11 and the connecting rod 6 remain constant. As the support leg 3 rotates, the angle between the support leg 3 and the connecting rod 6 within the triangle increases. To maintain the triangle's integrity, the length of the support leg 3 and the movable sleeve 4 is adjusted by extending and retracting, thus unfolding the support frame for subsequent surveying. After surveying is completed, press the movable sleeve 4 inward to allow the support leg 3 to rotate through its connection with the connector 2. The device rotates while the protruding part of the connector 2 gradually retracts into the interior of the movable sleeve 4, and the lower end of the movable sleeve 4 is embedded into the inner side of the slot 8 to fix the retracted movable sleeve 4. During surveying, the turntable 15 rotates on the upper side of the fixed plate 1 to adjust the direction of the surveying instrument 19. The rotating wheel 25 can drive the rotating shaft 24 to rotate, thereby driving the gear 23 to rotate. The rotating gear 23 cooperates with the gear ring 21, driving the mounting plate 17 to rotate through the connection with the side plate 16, thereby adjusting the angle of the surveying instrument 19 and keeping the surveying instrument 19 horizontal for subsequent surveying. The rotating second fastener 27 can fix the rotating wheel 25 after rotation.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A land surveying device, characterized in that, The device includes a fixed plate (1), a connector (2) fixedly connected to the lower periphery of the fixed plate (1), a support leg (3) rotatably connected to the inner side of the connector (2), a movable sleeve (4) movably connected to the lower end of the support leg (3), a pin (5) fixedly connected to the bottom of the movable sleeve (4), a connecting rod (6) threadedly connected to the lower center of the fixed plate (1), a connecting plate (7) fixedly connected to the bottom of the connecting rod (6), a slot (8) installed at the end of the connecting plate (7), and the lower end of the movable sleeve (4) being fitted with... An movable sleeve (4) is fixed in the retracted state inside the slot (8). A support rod (11) is rotatably connected to the upper periphery of the connecting plate (7). A rotating part (12) is rotatably connected to the upper end of the support rod (11). A fixing ring (13) is fixedly connected to the end of the rotating part (12). The fixing ring (13) is sleeved on the upper outer side of the connecting plate (7). A first fastener (14) for fixing is threaded in the middle of the fixing ring (13). A surveying instrument (19) is installed on the upper side of the fixing plate (1) through an adjustment component.

2. The land engineering surveying device according to claim 1, characterized in that: The end of the connecting plate (7) is provided with a T-shaped card block (9), and the end of the card slot (8) near the connecting plate (7) is provided with a fixing clip (10). The card slot (8) is installed on the connecting plate (7) through the fixing clip (10) and the T-shaped card block (9).

3. The land engineering surveying device according to claim 1, characterized in that: The adjustment assembly includes a turntable (15) rotatably connected to the upper side of a fixed disk (1) via a damping shaft. Side plates (16) are fixedly connected to the upper sides of the left and right ends of the turntable (15). A mounting plate (17) is rotatably connected to the upper end of the side plates (16). A mounting groove (18) is fixedly connected to the upper side of the mounting plate (17). The surveying instrument (19) is installed inside the mounting groove (18).

4. A land engineering surveying device according to claim 3, characterized in that: An arc-shaped plate (20) is fixedly connected to the lower center of the mounting plate (17), and a toothed ring (21) is fixedly connected to the lower side of the arc-shaped plate (20).

5. A land engineering surveying device according to claim 3, characterized in that: A U-shaped frame (22) is fixedly connected to the upper middle part of the turntable (15), and a rotating shaft (24) is rotatably connected to the middle part of the U-shaped frame (22). A gear (23) is fixedly connected to the inner side of the U-shaped frame (22) outside the rotating shaft (24), and the outer side of the gear (23) is meshed with the lower side of the gear ring (21).

6. A land engineering surveying device according to claim 5, characterized in that: The left and right ends of the rotating shaft (24) pass through the lower end of the side plate (16) and are fixedly connected to the rotating wheel (25).

7. A land engineering surveying device according to claim 6, characterized in that: Each side plate (16) has a fixed ear (26) fixedly connected to the opposite side at the lower end, and the lower side of the fixed ear (26) is in close contact with the outer wall of the wheel (25).

8. A land engineering surveying device according to claim 7, characterized in that: The middle of the fixing lug (26) is threaded with a second fastener (27) for fixing the wheel (25).

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