A surveying table with strong terrain adaptability

Abstract

The utility model relates to topographic desk technical field, and disclose a kind of topographic desk with strong topographic suitability, including desktop, the lower surface four corners of one side of desktop is uniformly connected with square tube, multiple square tube is uniformly connected with square bar with sliding, the bottom end of square bar is fixedly connected with ground insertion rod, the bottom end of square bar and located ground insertion rod outside fixedly connected with outer thread ring, inner thread ring is threadedly connected on outer thread ring, the bottom of inner thread ring is fixedly connected with connecting pipe, the bottom end of connecting pipe is fixedly connected with threaded rod, the bottom end of threaded rod is universally connected with support leg. The utility model can guarantee the stability of desktop when facing the ground with pits and bumps, and the detachable support leg at its bottom and the ground insertion rod provided can be used together to guarantee the stability of desktop when facing soft ground and hard ground, effectively increasing the adaptability of drawing table.

Description

Technical Field

[0001] This utility model relates to the field of surveying table technology, and more specifically to a surveying table with strong terrain adaptability. Background Technology

[0002] Surveying work, especially in field environments with complex terrain, often faces severe site conditions. During surveying operations, a stable, flat platform with a suitable height and a certain working area is often required so that surveyors can complete their work efficiently, accurately, and comfortably.

[0003] A search revealed Chinese patent CN215014633U, which discloses a portable surveying table for outdoor surveying. This device is housed in a transport vehicle, reducing space usage and positioning the rotating plate. It uses a horizontal plate and springs to press the paper together, adjusts the surveying angle, and protects the user. However, uneven ground is often encountered when working outdoors, making it difficult to keep the surveying table balanced and affecting the normal progress of surveying work. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a surveying table with strong terrain adaptability to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a surveying table with strong terrain adaptability, including a tabletop, square tubes fixedly connected to the four corners of the lower surface of one side of the tabletop, square rods slidably connected inside the square tubes, ground insertion rods fixedly connected to the bottom ends of the square rods, an external threaded ring fixedly connected to the bottom end of the square rods and outside the ground insertion rods, an internal threaded ring threadedly connected to the external threaded ring, a connecting pipe fixedly connected to the bottom of the internal threaded ring, a threaded rod fixedly connected to the bottom end of the connecting pipe, and a support leg rotatably connected to the bottom end of the threaded rod.

[0006] As a further embodiment of this utility model, the square tube is provided with multiple through holes, and the square rod is provided with multiple equally spaced clearance holes, and a fixing screw that passes through one of the clearance holes is provided in one of the through holes.

[0007] As a further embodiment of this utility model, the upper surface of the desktop is provided with a clearance groove, and two symmetrical fixing blocks are fixedly connected to one side of the desktop. A rotating plate that cooperates with the clearance groove is rotatably connected between the two fixing blocks.

[0008] As a further embodiment of this utility model, both sides of the desktop are provided with clearance openings, and storage drawers for storage are slidably connected in both clearance openings.

[0009] As a further embodiment of this utility model, the rotating plate is rotatably connected to both sides by folding plates. The top two ends of the folding plates are respectively provided with a first insertion hole and a second insertion hole. The top of the rotating plate is provided with a third insertion hole that cooperates with the first insertion hole and the second insertion hole. U-shaped insertion rods for fixing the folding plates are inserted into the two third insertion holes in the middle and the first insertion hole at the end.

[0010] As a further embodiment of this utility model, a threaded collar is threadedly connected to the outer circumference of the threaded rod, and a knob is fixedly connected to the outer circumference of the threaded collar.

[0011] The technical effects and advantages of this utility model are as follows: 1. This utility model can extend and retract through the provided square tube and square rod, thereby ensuring the stability of the tabletop when facing uneven ground. Furthermore, the detachable support legs at the bottom and the provided ground insertion rod can ensure the stability of the tabletop when facing both soft and hard ground, effectively increasing the adaptability of the drawing table.

[0012] 2. This utility model features independently adjustable four square tubes, square rods, and their bottom structures. When the ground has unevenness, such as potholes or slopes, the height of each part can be adjusted independently to quickly level the tabletop, preventing items on it from sliding or tipping over and keeping the tabletop stable.

[0013] 3. This utility model, through the provided rotating plate and the folding plate thereon, allows the rotating plate to be rotated to the required angle when drawing work is needed, making it convenient for workers to draw. Furthermore, the folding plate can increase the surface area of ​​the rotating plate, making it more convenient for workers to use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the front three-dimensional structure of this utility model.

[0015] Figure 2 For the present utility model Figure 1 A schematic diagram of a localized explosion structure.

[0016] Figure 3 For the present utility model Figure 2 A partially enlarged structural diagram.

[0017] Figure 4 This is a schematic diagram of the desktop unfolding structure of this utility model.

[0018] Figure 5 This is a schematic diagram of the unfolded structure of the folding plate of this utility model.

[0019] Figure 6 This utility model Figure 5A magnified structural diagram of part A.

[0020] The attached diagram is labeled as follows: 1. Desktop; 2. Square tube; 3. Square rod; 4. Ground insertion rod; 5. External threaded ring; 6. Internal threaded ring; 7. Connecting pipe; 8. Threaded rod; 9. Support leg; 10. Through hole; 11. Clearance hole; 12. Fixing screw; 13. Clearance groove; 14. Fixing block; 15. Rotating plate; 16. Threaded collar; 17. Knob; 18. Clearance opening; 19. Storage drawer; 20. Folding plate; 21. First insertion hole; 22. Second insertion hole; 23. Third insertion hole; 24. U-shaped insertion rod. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Reference Figures 1-6 This utility model provides a surveying table with strong terrain adaptability, including a tabletop 1. Square tubes 2 are fixedly connected to the four corners of the lower surface of one side of the tabletop 1 by bolts. Square rods 3 are slidably connected inside the square tubes 2. Ground insertion rods 4 are fixedly connected to the bottom of the square rods 3 by bolts. An external threaded ring 5 is welded to the bottom of the square rods 3 and outside the ground insertion rods 4. An internal threaded ring 6 is threadedly connected to the external threaded ring 5. A connecting pipe 7 is welded to the bottom of the internal threaded ring 6. A threaded rod 8 is fixedly connected to the bottom of the connecting pipe 7 by bolts. A support leg 9 is rotatably connected to the bottom of the threaded rod 8. The square tubes 2 are provided with multiple through holes 10. The square rods 3 are provided with multiple equally spaced clearance holes 11. A fixing screw 12 is provided in one of the through holes 10 and passes through one of the clearance holes 11. When facing the uneven ground, the corresponding fixing screw 12 is first removed. Then, the square rod 3 is pulled down along the square tube 2. After adjusting to a suitable position, the fixing screw 12 is fixed again.

[0023] The tabletop 1 can maintain stability when facing uneven ground. Furthermore, the detachable support legs 9 at the bottom and the floor insert 4 can be used together to ensure the stability of the tabletop 1 when facing both soft and hard ground, effectively increasing the adaptability of the drawing table.

[0024] Furthermore, a threaded collar 16 is threadedly connected to the outer circumference of the threaded rod 8. A knob 17 is fixedly connected to the outer circumference of the threaded collar 16 by bolts. When facing a slope, rotating the knob 17 causes the threaded collar 16 to rotate, thereby moving the threaded collar 16 upward and disengaging it from the support leg 9. This allows the support leg 9 to rotate in all directions to adapt to different slopes.

[0025] The four square tubes 2, square rods 3, and their bottom structures are equipped with independent adjustments. When the ground has unevenness, such as potholes or slopes, the height of each part can be adjusted independently to make the tabletop 1 quickly reach a level state, preventing items on it from tipping over or sliding, and keeping the tabletop 1 stable.

[0026] Furthermore, when facing a softer surface, rotate the internal threaded ring 6 to remove the threaded rod 8 and support leg 9 at its bottom. Then, remove the corresponding fixing screw 12, pull the square rod 3 downwards to insert the ground insertion rod 4 into the ground, and then re-secure the fixing screw 12. In this invention, a recessed groove 13 is provided on the upper surface of the desktop 1. Two symmetrical fixing blocks 14 are fixedly connected to one side of the desktop 1 by bolts. A rotating plate 15 that mates with the recessed groove 13 is rotatably connected between the two fixing blocks 14. Folding plates 20 are rotatably connected to both sides of the rotating plate 15. A first insertion hole 21 and a second insertion hole 22 are respectively provided at the top two ends of the folding plate 20. A third insertion hole 23 that mates with the first insertion hole 21 and the second insertion hole 22 is provided on the top of the rotating plate 15 and is located in the middle. U-shaped inserts 24 for fixing the folding plate 20 are inserted into the two third inserts 23 and the first insert 21 located at the end. When the rotating plate 15 needs to be rotated, after rotating to the required angle, the two U-shaped inserts 24 are pulled out. Then, the two folding plates 20 on the rear side are rotated until they are flush with the rotating plate 15. Then, the two U-shaped inserts 24 are inserted into the second inserts 22 on the folding plate 20 and the third inserts 23 located at both ends on one side of the rotating plate 15 to fix the two folding plates 20.

[0027] With the provided rotating plate 15 and the folding plate 20 thereon, the rotating plate 15 can be rotated to the required angle when drawing work is needed, which makes it convenient for staff to draw. The folding plate 20 can also increase the surface area of ​​the rotating plate 15, making it more convenient for staff to use.

[0028] In this utility model, both sides of the desktop 1 are provided with clearance openings 18, and storage drawers 19 for storage are slidably connected in both clearance openings 18.

[0029] In this application, annular grooves are axially provided on the inner wall of the internal threaded ring 6, the outer wall of the external threaded ring 5, the outer wall of the threaded rod 8, and the threaded collar 16. A nylon 66 damping ring with a Shore hardness of 85A is embedded in the groove. The continuous axial clamping force generated by its elastic deformation forms a helical angle interference fit of 15°-20° with the surface of the threaded rod 8 and the outer wall of the external threaded ring. When the threaded pair is subjected to axial vibration load, the nylon insert can generate a maximum elastic compression of 0.3mm, which increases the friction coefficient between the thread contact surfaces from 0.15 to 0.68 (tested according to ASTM D1894 standard), effectively suppressing loosening displacement caused by thread springback.

[0030] The use of this utility model involves the following steps: S1: When facing uneven ground, first remove the corresponding fixing screw 12, then pull the square rod 3 down along the square tube 2. After adjusting to the appropriate position, fix the fixing screw 12 again. When facing a slope, turn the knob 17 to drive the threaded collar 16 to rotate, so that the threaded collar 16 moves upward to disengage from the support leg 9, so that the support leg 9 can rotate in all directions to adapt to different slopes. S2: When facing a softer ground, rotate the inner threaded ring 6 to remove the threaded rod 8 and support leg 9 at its bottom. Then remove the corresponding fixing screw 12, pull the square rod 3 downward to insert the ground insertion rod 4 into the ground, and then fix the fixing screw 12 again. S3: When it is necessary to rotate the rotating plate 15, after rotating it to the required angle, pull out the two U-shaped plugs 24. Then rotate the two folding plates 20 on the rear side until they are flush with the rotating plate 15. Then insert the two U-shaped plugs 24 into the second plug hole 22 on the folding plate 20 and the third plug hole 23 on one side of the rotating plate 15 at both ends to fix the two folding plates 20.

[0031] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change. The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs. The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A surveying table with strong terrain adaptability, comprising a tabletop (1), characterized in that: Square tubes (2) are fixedly connected to the four corners of the lower surface of one side of the desktop (1). Square rods (3) are slidably connected inside the square tubes (2). Grounding rods (4) are fixedly connected to the bottom of the square rods (3). An external threaded ring (5) is fixedly connected to the bottom of the square rods (3) and outside the grounding rods (4). An internal threaded ring (6) is threaded onto the external threaded ring (5). A connecting pipe (7) is fixedly connected to the bottom of the internal threaded ring (6). A threaded rod (8) is fixedly connected to the bottom of the connecting pipe (7). A support leg (9) is rotatably connected to the bottom of the threaded rod (8).

2. The surveying table with strong terrain adaptability according to claim 1, characterized in that: The square tube (2) is provided with multiple through holes (10), and the square rod (3) is provided with multiple equally spaced clearance holes (11). A fixing screw (12) is provided in one of the through holes (10) and passes through one of the clearance holes (11).

3. The surveying table with strong terrain adaptability according to claim 1, characterized in that: The upper surface of the desktop (1) is provided with a clearance groove (13), and two symmetrical fixing blocks (14) are fixedly connected to one side of the desktop (1). A rotating plate (15) that cooperates with the clearance groove (13) is rotatably connected between the two fixing blocks (14).

4. The surveying table with strong terrain adaptability according to claim 3, characterized in that: Both sides of the desktop (1) are provided with clearance openings (18), and storage drawers (19) for storage are slidably connected in both clearance openings (18).

5. A surveying table with strong terrain adaptability according to claim 3, characterized in that: The rotating plate (15) is folded on both sides and connected to a folding plate (20). The top two ends of the folding plate (20) are respectively provided with a first insertion hole (21) and a second insertion hole (22). The top of the rotating plate (15) is provided with a third insertion hole (23) that cooperates with the first insertion hole (21) and the second insertion hole (22). U-shaped inserts (24) for fixing the folding plate (20) are inserted into the two third insertion holes (23) in the middle and the first insertion hole (21) at the end.

6. A surveying table with strong terrain adaptability according to claim 1, characterized in that: The threaded rod (8) has a threaded collar (16) threadedly connected to its outer circumference, and a knob (17) is fixedly connected to the outer circumference of the threaded collar (16).

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