A building engineering foundation pit monitoring device

Abstract

The utility model discloses a kind of construction engineering foundation pit monitoring devices, including level, the bottom of the level is fixedly arranged with pedestal, the downside of pedestal is installed with leveling seat, the bottom of leveling seat is provided with tripod fixing disc, the surface of level is covered with cover, cover includes the docking seat of being inserted in the lateral wall of level, docking seat top is fixedly provided with upper docking piece, docking seat bottom is fixedly provided with lower docking piece, the surface of level is provided with top plate, leveling seat includes the ball shaft of being fixedly connected in the bottom of pedestal, upper portion of the outside of ball shaft is wrapped with upper ball sleeve. The construction engineering foundation pit monitoring device, the 360 ° free rotation characteristic of spherical joint is utilized by ball shaft structure, just need to hold level slightly swing, bubble of round level can be quickly centered quickly;Compared with the cyclic operation of foot screw, the mechanical labor of multiple alternate rotation foot screw is saved, leveling time is greatly shortened, and field operation efficiency is significantly reduced.

Description

Technical Field

[0001] This utility model relates to the field of construction equipment, specifically a monitoring device for foundation pits in construction projects. Background Technology

[0002] An excavation pit is a pit dug at the foundation design location according to the base elevation and foundation plane dimensions. Before excavation, an excavation plan should be determined based on geological and hydrological data and the conditions of nearby buildings, and waterproofing and drainage work should be carried out. For shallow excavations, slope protection can be used to stabilize the soil slope, and the slope should be determined according to relevant construction engineering regulations. When excavating an excavation pit at a construction site, it is necessary to monitor the construction site. The common method in the current technology is to use manual methods for detection. This approach wastes a lot of manpower and material resources, resulting in slow data acquisition and low efficiency. In addition, the safety of manual operations cannot be guaranteed. Furthermore, the coverage density of manual monitoring is small, leading to inaccurate monitoring results.

[0003] To solve the above problems, after searching, Chinese Patent No. CN212452816U was found, which discloses a monitoring device for building foundation pits. The device includes a movable base, a lifting base, a rotating base and a monitoring device. A first driving device is provided in the middle of the movable base. The drive shaft of the first driving device is connected to the lifting base at the top via a driving lifting rod. A second driving device is provided in the middle of the lifting base. The drive shaft of the second driving device is rotatably connected to the rotating base via a rotating connecting plate. An installation frame is provided in the middle of the rotating base.

[0004] While the aforementioned device can be secured to the overall structure using tapered fixing bolts, offering good mobility and stability, in actual use, the bottom of the excavation pit is uneven. Taking a level as an example, fixing the monitoring device to the bottom of the pit using tapered fixing bolts makes it difficult to ensure the monitoring device is level. Therefore, the level needs to be leveled using three sets of leveling screws connected to the tripod at the bottom. The tripod should be spread out, with legs of appropriate length and a height approximately chest-high. The three tripod tips should be firmly inserted into the ground or placed on a hard surface, ensuring the tripod head is roughly level. Leveling the level requires alternating adjustments of the three sets of leveling screws, such as adjusting two sets first, then the third, and repeating this process after rotating the instrument. This takes at least 3-5 minutes to achieve accurate leveling, significantly reducing the efficiency of field operations. Utility Model Content

[0005] The purpose of this invention is to provide a monitoring device for foundation pits in building construction projects, so as to solve the defects mentioned in the background art.

[0006] To achieve the above objectives, a monitoring device for foundation pits in construction engineering is provided, including a level instrument. The bottom of the level instrument is fixedly provided with a base, and a leveling seat is installed on the lower side of the base. A tripod fixing plate is provided at the bottom of the leveling seat. The surface of the level instrument is covered with a cover, which includes a docking seat inserted through the side wall of the level instrument. An upper docking piece is fixedly provided at the top of the docking seat, and a lower docking piece is fixedly provided at the bottom of the docking seat. A top plate is provided on the surface of the level instrument. The leveling seat includes a ball shaft fixedly connected to the bottom of the base. An upper ball sleeve is wrapped around the upper outer side of the ball shaft, and a lower ball sleeve is wrapped around the lower outer side of the ball shaft. A circular level is fixedly provided on the surface of the level instrument.

[0007] Furthermore, the leveling seat includes a ball shaft, an upper ball sleeve, a lower ball sleeve, a fixed seat, and a damping rubber pad. Flanges are fixedly installed at the bottom of the upper ball sleeve and the top of the lower ball sleeve, and the two sets of flanges are fixedly connected by a sealing gasket and bolts.

[0008] Furthermore, damping rubber pads are fixedly installed on the inner walls of both the upper and lower ball sleeves. The damping rubber pads are spherical and are interference-fitted with the ball shaft. The ball shaft is positioned between the upper and lower ball sleeves through the damping rubber pads.

[0009] Furthermore, a fixing seat is fixedly installed on the bottom circumferential outer wall of the lower ball sleeve. The fixing seat is arranged in a ring shape and covers the upper surface of the tripod fixing plate and is fixed by bolts. Three sets of screw posts are evenly installed on the bottom of the tripod fixing plate, and the tripod fixing plate is screwed to the tripod through the three sets of screw posts.

[0010] Furthermore, the cover includes a top plate, side panels, a bent plate, an end plate, an eyepiece cover, a docking groove, a docking seat, an upper docking piece, and a lower docking piece. The top plate is triangular in shape, and side panels are installed on both sides of the bottom of the top plate. The side panels are V-shaped, and the bottom of the side panels is provided with a bent plate that bends outward toward the level instrument. An end plate is fixedly installed at the end of the top plate, and an eyepiece cover is inserted inside the end plate. The eyepiece cover is fitted onto the outside of the eyepiece of the level instrument.

[0011] Furthermore, the docking seat is fixedly connected to the top plate via the upper docking piece, and the docking seat is fixed to the side via the lower docking piece. The docking groove is configured as two sets, which are respectively opened on both sides of the level instrument.

[0012] Furthermore, the dimensions of the docking seat and the docking groove are compatible, and the two sets of docking seats are respectively inserted into the two sets of docking grooves. The cross-section of the docking seat and the docking groove are both gourd-shaped. The cover is placed on the level instrument and can be disassembled and assembled through the two sets of docking seats and docking grooves.

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

[0014] 1. This utility model allows for the adjustment of the level's angle using a handheld level. The ball shaft is positioned between the upper and lower ball sleeves, connected via a damping rubber pad. This damping rubber pad, spherically shaped, is pressed and fixed to the outside of the ball shaft by the two ball sleeves, increasing friction and ensuring the stability of the ball shaft and the level when stationary. The ball shaft structure utilizes the 360° free rotation characteristic of a spherical joint, allowing for rapid centering of the bubble in the circular level with just a slight hand movement of the level. Compared to the cyclical operation of the foot screws, this eliminates the mechanical labor of repeatedly rotating them, significantly reducing leveling time and improving efficiency in field operations.

[0015] 2. This utility model uses a cover made of plastic to cover the outside of the level instrument, which blocks ultraviolet radiation from sunlight, protects the instrument shell and rubber parts from aging, and prevents damage to the optical element coating or fading of the data screen; it enhances the reliability of the instrument in harsh environments, such as rainstorms, sandstorms and strong sunlight, and ensures continuous field operations; the cover is lightweight and easy to install, and does not affect the normal leveling and observation of the instrument. Attached Figure Description

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

[0017] Figure 2 for Figure 1 A bottom view;

[0018] Figure 3 for Figure 1 Exploded view;

[0019] Figure 4 for Figure 3 Cross-sectional view of the cover in the middle;

[0020] Figure 5 This is a schematic diagram of the structural cover of this utility model;

[0021] Figure 6 This is a bottom view of the structural cover of this utility model;

[0022] Figure 7 This is a cross-sectional view of the leveling seat of this utility model;

[0023] Figure 8 for Figure 7 A bottom view.

[0024] The following are the labels in the diagram: 1. Level instrument; 11. Base; 2. Leveling seat; 20. Ball shaft; 21. Upper ball sleeve; 22. Lower ball sleeve; 23. Fixing seat; 24. Damping rubber pad; 3. Tripod fixing plate; 4. Cover; 41. Top plate; 42. Side; 43. Bending plate; 44. End plate; 45. Eyepiece cover; 46. Docking groove; 461. Docking seat; 462. Upper docking piece; 463. Lower docking piece. Detailed Implementation

[0025] Please see Figure 1-8 This utility model provides a monitoring device for foundation pits in construction engineering, including a level instrument 1. A base 11 is fixedly installed at the bottom of the level instrument 1. A leveling seat 2 is installed on the lower side of the base 11. A tripod fixing plate 3 is installed at the bottom of the leveling seat 2. The surface of the level instrument 1 is covered with a cover 4. The cover 4 includes a docking seat 461 inserted into the side wall of the level instrument 1. An upper docking piece 462 is fixedly installed at the top of the docking seat 461. A lower docking piece 463 is fixedly installed at the bottom of the docking seat 461. A top plate 41 is installed on the surface of the level instrument 1. The leveling seat 2 includes a ball shaft 20 fixedly connected to the bottom of the base 11. An upper ball sleeve 21 is wrapped around the upper outer side of the ball shaft 20. A lower ball sleeve 22 is wrapped around the lower outer side of the ball shaft 20. A circular level is fixedly installed on the surface of the level instrument 1.

[0026] In a preferred embodiment, the leveling seat 2 includes a ball shaft 20, an upper ball sleeve 21, a lower ball sleeve 22, a fixed seat 23, and a damping rubber pad 24. Flanges are fixedly provided at the bottom of the upper ball sleeve 21 and the top of the lower ball sleeve 22, and the two sets of flanges are fixedly connected by a sealing gasket and bolts.

[0027] Damping rubber pads 24 are fixedly installed on the inner walls of the upper ball sleeve 21 and the lower ball sleeve 22. The damping rubber pads 24 are spherical and are interference-fitted with the ball shaft 20. The ball shaft 20 is positioned between the upper ball sleeve 21 and the lower ball sleeve 22 through the damping rubber pads 24.

[0028] like Figure 1 , Figure 7 and Figure 8 As shown: Damping rubber pad 24 is made of wear-resistant rubber, which is not easily damaged under normal use. Unlike foot screws, it does not require regular lubrication or thread cleaning, reducing maintenance costs significantly. The sealing structure of damping rubber pad 24 can prevent mud, sand, and moisture from entering the ball joint, maintaining smooth rotation even in dusty and humid environments. At the same time, the damping properties of rubber can effectively attenuate ground vibrations, such as the impact of passing vehicles on the instrument, reducing the problem of frequent bubble deviation. Leveling foot screws requires mastering the logic of first adjusting two sets to make the bubble parallel to the third set, and then centering the third set. Beginners often fail to level due to confusion in the steps. However, leveling seat 2 only requires observing the bubble, swinging the instrument, and centering the bubble, which can be done without professional training.

[0029] As a preferred embodiment, a fixing seat 23 is fixedly provided on the bottom circumferential outer wall of the lower ball sleeve 22. The fixing seat 23 is arranged in a ring shape. The fixing seat 23 covers the upper surface of the tripod fixing plate 3 and is fixed by bolts. Three sets of screw posts are evenly installed on the bottom of the tripod fixing plate 3. The tripod fixing plate 3 is screwed and fixed to the tripod through the three sets of screw posts.

[0030] The cover 4 includes a top plate 41, side plates 42, bent plates 43, end plates 44, eyepiece covers 45, docking grooves 46, docking seats 461, upper docking pieces 462 and lower docking pieces 463. The top plate 41 is triangular in shape, and side plates 42 are installed on both sides of the bottom of the top plate 41. The side plates 42 are V-shaped. The bottom of the side plates 42 is provided with bent plates 43 that bend outward toward the level instrument 1. An end plate 44 is fixedly installed at the end of the top plate 41. An eyepiece cover 45 is inserted inside the end plate 44 and is fitted onto the outside of the eyepiece of the level instrument 1.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown: Cover 4 covers the outside of the level instrument 1. It is made of plastic to prevent rainwater from entering the instrument, thus preventing short circuits, lens blurring, or mechanical component corrosion, ensuring measurement accuracy and instrument lifespan. It also reduces the intrusion of dust, sand, and other particles, preventing optical lens wear or mechanical structure jamming, maintaining instrument sensitivity and stability. It blocks ultraviolet radiation from sunlight, protecting the instrument shell and rubber parts from aging, preventing damage to optical element coatings or fading of the data screen. It enhances the reliability of the instrument in harsh environments, such as heavy rain, sandstorms, and strong sunlight, ensuring continuous field operations. Cover 4 is lightweight and easy to install, does not affect the normal leveling and observation of the instrument, and reduces the inconvenience of frequent instrument loading and unloading. By reducing environmental factors to damage the instrument, it reduces the frequency of maintenance and the cost of replacing parts, resulting in long-term savings in maintenance costs. Cover 4 significantly improves the durability and measurement efficiency of the level instrument through multiple layers of protection.

[0032] In a preferred embodiment, the docking seat 461 is fixedly connected to the top plate 41 by the upper docking piece 462, and the docking seat 461 is fixed to the side 42 by the lower docking piece 463. The docking groove 46 is configured as two sets respectively opened on both sides of the level instrument 1.

[0033] The dimensions of the docking seat 461 and the docking groove 46 are compatible. The two sets of docking seats 461 are respectively inserted into the two sets of docking grooves 46. The cross-sections of the docking seat 461 and the docking groove 46 are both gourd-shaped. The cover 4 is installed and removed on the level instrument 1 through the two sets of docking seats 461 and docking grooves 46.

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown: The top plate 41 of the cover 4 is triangular, which makes it difficult for water to accumulate on the surface of the top plate 41. At the same time, the cover 4 is provided with a bending plate 43 that bends outward towards the level instrument 1 to prevent water from flowing towards the level instrument 1 when it falls. The cover 4 is installed and removed from the level instrument 1 through two sets of docking seats 461 and docking grooves 46, which can realize quick and accurate disassembly or installation of the cover 4. At the same time, there is friction between the docking seats 461 and the docking grooves 46, which ensures that the cover 4 does not shake when protecting the level instrument 1, thus ensuring the stability of the cover 4 during operation and preventing it from falling off.

[0035] Working Principle: In actual use, the level instrument 1 is placed inside the foundation pit to measure the settlement of the surrounding ground surface and buildings. The bottom of the level instrument 1 is fixed inside the foundation pit by a tripod. When leveling the level instrument 1 is required, it is held by hand and its angle is adjusted. At this time, the ball shaft 20 is movably positioned between the upper ball sleeve 21 and the lower ball sleeve 22. The ball shaft 20 is connected to the upper ball sleeve 21 and the lower ball sleeve 22 through a damping rubber pad 24. The upper ball sleeve 21 and the lower ball sleeve 22 are fixed together by a flange. The damping rubber pad 24 is spherical and is pressed and fixed to the outside of the ball shaft 20 by the two sets of ball sleeves, increasing the friction between it and the ball shaft 20 and ensuring the stability of the ball shaft 20 and the level instrument 1 when stationary, preventing loosening. By observing the circular level on the level instrument 1, it can be determined whether the level instrument 1 is in a horizontal state. Compared with the traditional method of leveling by alternating three sets of leveling screws, the setting of this mechanism is faster in leveling. The ball shaft 20 structure utilizes the 360° free rotation characteristic of the ball joint. Only a slight swing of the hand holding the level instrument 1 is needed to quickly center the bubble of the circular level. Compared with the cyclic operation of the leveling screws, it saves the mechanical labor of alternating the leveling screws many times, greatly shortening the leveling time and significantly reducing the efficiency of field operations. After being squeezed by the upper ball sleeve 21 and the lower ball sleeve 22, the damping rubber pad 24 is tightly attached to the ball shaft 20 through the spherical curved surface, generating a uniform circumferential friction force. This not only prevents the ball shaft 20 from loosening due to its own weight when stationary, but also provides a gentle resistance feedback during leveling.

Claims

1. A monitoring device for foundation pits in building construction, comprising a level (1), characterized in that: The level instrument (1) is fixedly provided with a base (11) at the bottom. A leveling seat (2) is installed on the lower side of the base (11). A tripod fixing plate (3) is provided at the bottom of the leveling seat (2). The surface of the level instrument (1) is covered with a cover (4). The cover (4) includes a docking seat (461) inserted through the side wall of the level instrument (1). An upper docking piece (462) is fixedly provided on the top of the docking seat (461). A lower docking piece (463) is fixedly provided at the bottom of the docking seat (461). A top plate (41) is provided on the surface of the level instrument (1). The leveling seat (2) includes a ball shaft (20) fixedly connected to the bottom of the base (11). An upper ball sleeve (21) is wrapped around the upper outer side of the ball shaft (20). A lower ball sleeve (22) is wrapped around the lower outer side of the ball shaft (20). A circular level is fixedly provided on the surface of the level instrument (1).

2. The foundation pit monitoring device for building engineering according to claim 1, characterized in that: The leveling seat (2) includes a ball shaft (20), an upper ball sleeve (21), a lower ball sleeve (22), a fixed seat (23), and a damping rubber pad (24). Flanges are fixedly installed at the bottom of the upper ball sleeve (21) and the top of the lower ball sleeve (22). The two sets of flanges are fixedly connected by a sealing gasket and bolts.

3. The foundation pit monitoring device for building engineering according to claim 2, characterized in that: Damping rubber pads (24) are fixedly installed on the inner walls of the upper ball sleeve (21) and the lower ball sleeve (22). The damping rubber pads (24) are spherical and are interference-fitted with the ball shaft (20). The ball shaft (20) is located between the upper ball sleeve (21) and the lower ball sleeve (22) through the damping rubber pads (24).

4. The foundation pit monitoring device for building engineering according to claim 2, characterized in that: A fixing seat (23) is fixedly installed on the bottom circumferential outer wall of the lower ball sleeve (22). The fixing seat (23) is arranged in a ring. The fixing seat (23) covers the upper surface of the tripod fixing plate (3) and is fixed by bolts. Three sets of screw posts are evenly installed on the bottom of the tripod fixing plate (3). The tripod fixing plate (3) is screwed and fixed to the tripod through the three sets of screw posts.

5. A foundation pit monitoring device for building engineering according to claim 1, characterized in that: The cover (4) includes a top plate (41), a side (42), a bent plate (43), an end plate (44), an eyepiece cover (45), a docking groove (46), a docking seat (461), an upper docking piece (462), and a lower docking piece (463). The top plate (41) is triangular in shape, and the bottom two sides of the top plate (41) are equipped with side plates (42). The side plates (42) are V-shaped. The bottom of the side plates (42) is equipped with a bent plate (43) that bends outward toward the level (1). The end plate (44) is fixedly installed at the end of the top plate (41). An eyepiece cover (45) is inserted inside the end plate (44). The eyepiece cover (45) is fitted onto the outside of the eyepiece of the level (1).

6. The foundation pit monitoring device for building engineering according to claim 5, characterized in that: The docking seat (461) is fixedly connected to the top plate (41) through the upper docking piece (462) at the top, and the docking seat (461) is fixed to the side (42) through the lower docking piece (463) at the bottom. The docking groove (46) is set in two sets and opened on both sides of the level (1).

7. A foundation pit monitoring device for building engineering according to claim 6, characterized in that: The dimensions of the docking seat (461) and the docking groove (46) are compatible. The two sets of docking seats (461) are respectively inserted into the two sets of docking grooves (46). The cross-sections of the docking seat (461) and the docking groove (46) are both gourd-shaped. The cover (4) is disassembled and assembled on the level instrument (1) through the two sets of docking seats (461) and the docking groove (46).

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