A construction surveying device

Abstract

A kind of construction engineering measuring device, including tripod body and the measuring instrument body installed thereon, tripod body includes mounting plate and three support legs articulated therewith, support leg is telescopic, the lower part of support leg is provided with sliding slot along its length direction, sliding block is slidably connected in sliding slot, sliding block is fastened with support leg by first fastener, the inner side of sliding block is articulated with connecting plate, the end of connecting plate away from sliding block is articulated with counterweight plate;The lowest position that the lower end of connecting plate can reach is lower than the bottom surface of support leg movably connected therewith;The articulation of connecting plate and sliding block and the articulation of counterweight plate and connecting plate are all provided with damping structure.The utility model discloses by slidingly setting sliding block in the lower part of each support leg, and articulating connecting plate and counterweight plate on sliding block, staff can unfold and place counterweight plate on ground, by placing stone on the upper end surface of counterweight plate, effectively increase the contact area of device and ground and utilize counterweight moment to balance the overturning moment generated by upper measuring instrument.

Description

Technical Field

[0001] This utility model relates to the field of engineering measurement technology, specifically a building engineering measurement device. Background Technology

[0002] In construction engineering surveying, precision instruments such as total stations and levels are commonly used. These instruments are typically supported on the work site by tripods. Traditional tripods are designed with a soil-piercing tip at the bottom, suitable for working on soil surfaces. The tip can be driven into the ground to achieve a stable fixation, ensuring the stability of the instrument during the measurement process.

[0003] However, when working on hard surfaces such as concrete and asphalt, the tripod's soil-piercing tip cannot penetrate the ground, and it can only be placed directly on the ground by relying on the limited contact surface at the end of the legs. Because hard surfaces are flat and hard, the actual contact area between the tripod and the ground is small. In addition, instruments such as total stations are set up at a high height and have a high center of gravity. Furthermore, the opening angle of the tripod's legs is limited by the structure and cannot be significantly increased, resulting in a significant decrease in overall support stability.

[0004] Especially in windy working environments, the aforementioned support system is susceptible to swaying due to external forces, posing a risk of tripod tilting or even tipping over, which may damage expensive measuring instruments and seriously affect the accuracy of measurement data and operational safety. Utility Model Content

[0005] To address the technical problems existing in the background art, this utility model provides a building engineering measurement device.

[0006] The technical solution of this utility model is as follows:

[0007] A construction engineering surveying device includes a tripod body and a measuring instrument body mounted thereon. The tripod body includes a mounting plate and three support legs hinged thereto. The support legs are telescopic. The lower part of the support legs is provided with a groove along its length. A slider is slidably connected in the groove. The slider is fastened to the support leg by a first fastener. A connecting plate is hinged to the inner side of the slider. A counterweight plate is hinged to the end of the connecting plate away from the slider.

[0008] The lowest position that the lower end of the connecting plate can reach is lower than the bottom surface of the support leg that it is movably connected to;

[0009] Damping structures are provided at the hinge joints between the connecting plate and the slider, and at the hinge joints between the counterweight plate and the connecting plate.

[0010] The support leg has a telescopic structure consisting of an upper support leg and a lower support leg that are connected together. The upper support leg and the lower support leg are fastened together by a second fastener, and a groove is formed on the lower support leg.

[0011] To facilitate the storage of the connecting plate when storing the tripod and reduce the space occupied by the connecting plate during storage, a first storage groove is provided on the inner side of the lower support leg, which is connected to the slide groove. The width of the first storage groove is greater than the width of the slide groove and is adapted to the width of the connecting plate. After the work is completed, the connecting plate can be rotated into the first storage groove for storage.

[0012] The sliding joint has an I-shaped cross-section, and the inner side of the slider slides into the first storage groove.

[0013] Furthermore, a first mounting groove is provided on the inner side of the slider, and a first rotating shaft is provided in the first mounting groove. One end of the connecting plate is rotatably connected to the first rotating shaft, and the width of the first mounting groove is greater than the width of the connecting plate.

[0014] The damping structure specifically includes a first damping element and a second damping element made of rubber. The first damping element is sleeved on both ends of the first rotating shaft. The two end faces of the first damping element are respectively in close contact with the inner wall of the first mounting groove and one side of the connecting plate, so that the first damping element can be clamped between the first mounting groove and the connecting plate. When the connecting plate is rotated, it can play a damping role on the connecting plate, avoiding excessive shaking between the connecting plate and the slider during use. A certain amount of force is required to adjust the rotation angle of the connecting plate on the slider.

[0015] To facilitate the storage of the counterweight plate, the connecting plate has a second storage slot with a width greater than that of the counterweight plate. The second storage slot has an opening on the side away from the slider, and a second rotating shaft is provided at the opening. The end of the counterweight plate is rotatably connected to the second rotating shaft.

[0016] To prevent the connection between the counterweight plate and the connecting plate from becoming too loose and affecting the overall stability of the tripod, a second damping element is fitted at both ends of the second pivot. The two ends of the second damping element are tightly attached to the inner wall of the second storage slot and one side of the counterweight plate, respectively, so that the second damping element is clamped between the second storage slot and the counterweight plate. A certain amount of force is required to adjust the angle between the counterweight plate and the connecting plate.

[0017] To ensure the counterweight plate is stably stored in the second storage slot, the width of the counterweight plate increases from the end closest to the connecting plate to the other end, and the maximum width of the counterweight plate is 0.05-0.1 mm greater than the width of the second storage slot.

[0018] The upper surface of the counterweight plate is used to place counterweights such as stones to stabilize the tripod on the ground. The counterweight plate has a structure that includes an upper surface with multiple protective protrusions. These protrusions prevent the counterweights from slipping and detaching from the plate.

[0019] The beneficial effects of this utility model are as follows:

[0020] By sliding sliders at the bottom of each support leg and hinged connecting plates and counterweight plates on the sliders, a flexible and adjustable counterweight support system is formed. Workers can unfold the counterweight plates and place them on the ground. By placing heavy objects such as stones and sandbags on the upper surface of the counterweight plates, the contact area between the device and the ground is effectively increased, and the overturning moment generated by the upper measuring instrument is balanced by the counterweight torque. This greatly improves the tripod's wind resistance and anti-swaying ability on hard surfaces such as concrete and asphalt, and fundamentally avoids the risk of expensive measuring instruments being damaged due to the tripod overturning.

[0021] Damping structures (first damping element and second damping element) are provided at the hinges between the connecting plate and the slider, as well as between the connecting plate and the counterweight plate. While ensuring the rotation function, the structure provides the necessary frictional damping, effectively preventing the moving parts from unpredictably loosening and swaying under wind or external force impact, ensuring the stability and reliability of the overall structure during operation. The angle can only be adjusted when a certain operating force is applied.

[0022] The connecting plate can rotate and fully embed into the first storage slot specially designed inside the lower support leg; at the same time, the counterweight plate can rotate and retract into the second storage slot on the connecting plate. This "embedded" storage design allows the entire counterweight stabilizing mechanism to form a whole with the tripod legs when not in use, greatly reducing the storage volume, avoiding protruding parts, facilitating carrying and transportation, and effectively preventing bumps and damage to the connecting plate and counterweight plate during storage. Attached Figure Description

[0023] In the attached diagram:

[0024] Figure 1 This is a structural diagram;

[0025] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0026] Figure 3 for Figure 1 Enlarged structural diagram at point B;

[0027] Figure 4 This is a front view;

[0028] Figure 5 This is a schematic diagram of the slider, connecting plate, and counterweight plate.

[0029] Figure 6 This is a schematic diagram of the slider structure;

[0030] Figure 7 This is a schematic diagram of the counterweight plate structure;

[0031] The components represented by the various reference numerals in the diagram are:

[0032] 1. Measuring instrument body; 2. Mounting plate; 3. Support leg; 301. Upper support leg; 302. Lower support leg; 3021. Slide groove; 3022. First storage groove; 4. Slider; 401. First mounting groove; 5. Connecting plate; 501. Second storage groove; 6. Counterweight plate; 7. First fastener; 8. Second fastener; 9. First rotating shaft; 10. First damping component; 11. Second damping component; 12. Second rotating shaft; 13. Protective protrusion. Detailed Implementation

[0033] See Figure 1 and Figure 4 As shown, a construction engineering surveying device includes a tripod body and a surveying instrument body 1 mounted thereon. The surveying instrument body 1 is existing technology and can be a total station or level, etc. The tripod body includes a mounting plate 2 and three support legs 3 hinged thereto. The support legs 3 are telescopic. The lower part of the support leg 3 is provided with a sliding groove 3021 along its length direction. A slider 4 slides in the sliding groove 3021. The slider 4 is fastened to the support leg 3 by a first fastener 7. A connecting plate 5 is hinged to the inner side of the slider 4. A counterweight plate 6 is hinged to the end of the connecting plate 5 away from the slider 4.

[0034] The lowest position that the lower end of the connecting plate 5 can reach is lower than the bottom surface of the support leg 3 that is movably connected to it, so that the connecting plate 5 can be moved down to a certain position by moving the slider 4, and the counterweight plate 6 can fully contact the ground. After the slider 4 moves to the moving position, it is fastened to the support leg 3 by the first fastener 7.

[0035] The support leg 3 includes an upper support leg 301 and a lower support leg 302 that are sleeved together. The upper support leg 301 and the lower support leg 302 are fastened together by a second fastener 8. An annular part is fixedly provided at the lower part of the upper support leg 301. After the lower support leg 302 is adjusted to the position of the upper support leg 301, the second fastener 8 passes through the annular part and is tightened onto the lower leg, thereby achieving a fixed connection between the upper support leg 301 and the lower support leg 302. A sliding groove 3021 is formed on the lower support leg 302. It should be noted that the position of the slider 4 on the lower support leg 302 is adjustable, the rotation angle between the connecting plate 5 and the slider 4 is adjustable, and the included angle between the counterweight plate 6 and the connecting plate 5 is adjustable.

[0036] See Figure 3 As shown, the first fastener 7 can pass through the slider 4 and press against the lower support leg 302, thus fixing the slider 4 to the lower support leg 302. The slider 4 is fastened to the slide groove 3021 on the support leg 3 through the first fastener 7, so that the overall height and horizontal projection position of the counterweight system can be continuously adjusted according to the actual working conditions to adapt to different terrains and stability requirements.

[0037] To facilitate the storage of the connecting plate 5 when storing the tripod and reduce the space occupied by the connecting plate 5 during storage, a first storage groove 3022 is provided on the inner side of the lower support leg 302, which communicates with the slide groove 3021. The width of the first storage groove 3022 is greater than the width of the slide groove 3021 and is adapted to the width of the connecting plate 5. After the operation is completed, the connecting plate 5 can be rotated into the first storage groove 3022 for storage. The length of the connecting plate 5 is less than the length of the first storage groove 3022.

[0038] See Figure 5 and Figure 6 As shown, the slider 4 has an I-shaped cross-section, and its inner side is slidably connected to the first storage groove 3022. A first mounting groove 401 is provided on the inner side of the slider 4, and a first rotating shaft 9 is provided in the first mounting groove 401. One end of the connecting plate 5 is rotatably connected to the first rotating shaft 9, and the width of the first mounting groove 401 is greater than the width of the connecting plate 5.

[0039] See Figure 2 , Figure 6 and Figure 7 As shown, damping structures are provided at the hinges between the connecting plate 5 and the slider 4, and at the hinges between the counterweight plate 6 and the connecting plate 5. The damping structures include a first damping element 10 and a second damping element 11 made of rubber. The first damping element 10 and the second damping element 11 can also be made of other materials with high friction. In this embodiment, the first damping element 10 and the second damping element 11 are annular structures. The first damping element 10 is fitted at both ends of the first rotating shaft 9. The two end faces of the first damping element 10 are respectively in close contact with the inner wall of the first mounting groove 401 and one side of the connecting plate 5, allowing the first damping element 10 to be clamped between the first mounting groove 401 and the connecting plate 5. When the connecting plate 5 is rotated, it can dampen the connecting plate 5, preventing excessive shaking between the connecting plate 5 and the slider 4 during use, thus avoiding the need for a certain amount of force to adjust the rotation angle of the connecting plate 5 on the slider 4.

[0040] To facilitate the storage of the counterweight plate 6, the connecting plate 5 has a second storage groove 501 with a width greater than that of the counterweight plate 6. The second storage groove 501 has an opening on the side away from the slider 4, and a second rotating shaft 12 is provided at the opening. The end of the counterweight plate 6 is rotatably connected to the second rotating shaft 12, and the length of the counterweight plate 6 is less than the length of the second storage groove 501.

[0041] To prevent the connection between the counterweight plate 6 and the connecting plate 5 from becoming too loose and affecting the overall stability of the tripod, a second damping element 11 is fitted on both ends of the second pivot 12. The two end faces of the second damping element 11 are tightly attached to the inner wall of the second storage groove 501 and one side of the counterweight plate 6, respectively, so that the second damping element 11 is clamped between the second storage groove 501 and the counterweight plate 6. A certain amount of force is required to adjust the included angle between the counterweight plate 6 and the connecting plate 5.

[0042] In the above structure, damping structures (first damping element 10 and second damping element 11) are provided at the hinges between the connecting plate 5 and the slider 4, and between the connecting plate 5 and the counterweight plate 6. While ensuring the rotation function, the structure provides necessary friction damping, effectively preventing the moving parts from unpredictably loosening and swaying under wind or external force impact, ensuring the stability and reliability of the overall structure during operation. The angle can only be adjusted when a certain operating force is applied.

[0043] To ensure the counterweight plate 6 is stably housed within the second storage slot 501, the width of the counterweight plate 6 increases gradually from the end closest to the connecting plate 5 to the other end, with the maximum width of the counterweight plate 6 being 0.05-0.1 mm greater than the width of the second storage slot 501. The width of the counterweight plate 6 is designed to increase slightly from the end near the connecting plate 5 to the end furthest away, with its maximum width slightly greater than the width of the second storage slot 501 (0.05-0.1 mm). This slight interference fit achieves self-locking of the counterweight plate 6 in its stored state, preventing it from coming loose on its own.

[0044] The upper surface of the counterweight plate 6 is used to place counterweights such as stones, which provide stable support for the tripod on the ground. The counterweight plate 6 has a structure including an upper surface with multiple protective protrusions 13. The protective protrusions 13 on the upper surface of the counterweight plate 6 can be made of rubber or other materials with high friction, which can significantly increase the static friction between the protrusions and the counterweights (such as stones), providing good anti-slip properties and preventing the counterweights from slipping off the counterweight plate 6 under vibration or wind, further ensuring the continuity and stability of the load-bearing effect.

Claims

1. A construction engineering surveying device, comprising a tripod body and a measuring instrument body (1) mounted thereon, characterized in that, The tripod body includes a mounting plate (2) and three support legs (3) hinged thereto. The support legs (3) are telescopic. The lower part of the support leg (3) is provided with a slide groove (3021) along its length direction. A slider (4) is slidably connected in the slide groove (3021). The slider (4) is fastened to the support leg (3) by a first fastener (7). A connecting plate (5) is hinged to the inner side of the slider (4). A counterweight plate (6) is hinged to the end of the connecting plate (5) away from the slider (4). The lowest position that the lower end of the connecting plate (5) can reach is lower than the bottom surface of the support leg (3) that is movably connected to it; Damping structures are provided at the hinge joints between the connecting plate (5) and the slider (4) and between the counterweight plate (6) and the connecting plate (5).

2. The building engineering surveying device according to claim 1, characterized in that, The support leg (3) includes an upper support leg (301) and a lower support leg (302) that are sleeved together. The upper support leg (301) and the lower support leg (302) are fastened together by a second fastener (8). A groove (3021) is formed on the lower support leg (302).

3. A construction engineering surveying device according to claim 2, characterized in that, The lower support leg (302) has a first storage groove (3022) on its inner side that communicates with the slide groove (3021). The width of the first storage groove (3022) is greater than the width of the slide groove (3021) and is adapted to the width of the connecting plate (5).

4. The building engineering surveying device according to claim 1, characterized in that, The slider (4) has an I-shaped cross section, and the inner side of the slider (4) slides into the first storage groove (3022).

5. A construction engineering surveying device according to claim 1, characterized in that, The slider (4) has a first mounting groove (401) on its inner side. The first mounting groove (401) has a first rotating shaft (9) inside it. One end of the connecting plate (5) is rotatably connected to the first rotating shaft (9). The width of the first mounting groove (401) is greater than the width of the connecting plate (5).

6. A construction engineering surveying device according to claim 5, characterized in that, The damping structure includes a first damping element (10) and a second damping element (11) made of rubber. The first damping element (10) is sleeved on both ends of the first rotating shaft (9). The two end faces of the first damping element (10) are respectively in close contact with the inner wall of the first mounting groove (401) and one side of the connecting plate (5).

7. A construction engineering surveying device according to claim 6, characterized in that, The connecting plate (5) has a second storage groove (501) with a width greater than that of the counterweight plate (6). The second storage groove (501) has an opening on the side away from the slider (4), and a second rotating shaft (12) is provided at the opening. The end of the counterweight plate (6) is rotatably connected to the second rotating shaft (12).

8. A construction engineering surveying device according to claim 7, characterized in that, The second rotating shaft (12) is fitted with a second damping element (11) at both ends. The two ends of the second damping element (11) are in close contact with the inner wall of the second storage groove (501) and one side of the counterweight plate (6), respectively.

9. A construction engineering surveying device according to claim 7, characterized in that, The width of the counterweight plate (6) increases from one end near the connecting plate (5) to the other end, and the maximum width of the counterweight plate (6) is 0.05-0.1 mm greater than the width of the second storage slot (501).

10. A construction engineering surveying device according to claim 1, characterized in that, The counterweight plate (6) includes an upper surface, and the upper surface is provided with multiple protective protrusions (13).

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