Foundation pit engineering monitoring device

Abstract

The utility model relates to the technical field of foundation pit engineering, in particular to a foundation pit engineering monitoring device which comprises a water level monitoring pipe, a pre-buried seat arranged at the lower end of the water level monitoring pipe, a foundation pit body arranged on the periphery of the pre-buried seat, a water level gauge inserted into the water level monitoring pipe, a monitoring rod arranged on the water level gauge and a sealing table arranged on the water level monitoring pipe. A locking groove and an inner extrusion sealing frame are arranged on the sealing table, a sealing cover is arranged on the monitoring rod, a sliding hole and an outer extrusion sealing frame are arranged on the sealing cover, a locking column is connected into the sliding hole in a sliding mode, a spring is arranged on the locking column, and a connecting disc is arranged on the locking column. The effective comprehensive inner and outer double-layer extrusion sealing sleeving effect of the insertion part of the water level gauge and the water level monitoring pipe is achieved, the situation that the underground water level value, monitored by the water level gauge, in the foundation pit body is not accurate is avoided, the convenience of installing the water level gauge in the foundation pit body to the water level monitoring pipe is improved, and the damping magnetic attraction stability after the locking column is clamped into the locking groove is improved.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit engineering technology, and in particular to a foundation pit engineering monitoring device. Background Technology

[0002] Foundation pit engineering refers to the excavation of large foundation pits underground and the implementation of engineering activities such as support and drainage to ensure the safety and stability of underground structure construction.

[0003] The general process of foundation pit excavation is as follows: select the location to be excavated, and then use the appropriate excavator to excavate the foundation pit. During the excavation process, in order to prevent the foundation pit slope from collapsing, a support structure is usually set up at the foundation pit slope.

[0004] Furthermore, during the excavation of the main body of the foundation pit, the groundwater level will change in real time, so it is necessary to monitor the groundwater level of the foundation pit. This is mainly because changes in the groundwater level may affect the stability of the foundation pit, and an excessively high groundwater level may cause landslides in the foundation pit, thereby causing safety accidents.

[0005] The specific operation involves opening a water level insertion hole in the main body of the foundation pit, setting a pre-embedded seat on the water level insertion hole, and then inserting the water level monitoring pipe into the pre-embedded seat. At this time, the inner cavity at the bottom of the long water level monitoring pipe is connected to the groundwater. This ensures that the groundwater level is located in the inner cavity of the water level monitoring pipe. Then, the monitoring rod of the water level gauge is inserted into the water level monitoring pipe. The water level in the water level monitoring pipe is monitored in real time through the water level gauge and the monitoring rod. Through preset signal transmission, the monitored water level value can be displayed on the display screen of the water level gauge in real time, so as to achieve real-time monitoring of the groundwater level.

[0006] Currently, in existing groundwater level monitoring devices used in foundation pit engineering, there is a gap between the water level gauge and the water level monitoring pipe after the water level gauge is inserted. The sealing between the two is very low. During construction inside the foundation pit, some dust particles can directly enter through the gap between the water level gauge and the water level monitoring pipe, causing the groundwater level value in the foundation pit monitored by the water level gauge to be inaccurate.

[0007] In addition, water level gauges are mostly fixed to the water level monitoring pipe by multiple screws. This installation method requires the use of a screwdriver to continuously rotate and tighten each screw, which greatly reduces the convenience of installing the water level gauge onto the water level monitoring pipe in the foundation pit. Utility Model Content

[0008] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a monitoring device for foundation pit engineering.

[0009] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0010] Design a foundation pit engineering monitoring device, including a water level monitoring pipe, a pre-embedded seat at the lower end of the water level monitoring pipe, a foundation pit body around the pre-embedded seat, a water level gauge inserted into the water level monitoring pipe, a monitoring rod on the water level gauge, a sealing platform on the water level monitoring pipe, a locking groove and an inner extrusion sealing frame on the sealing platform, a sealing cover on the monitoring rod, a sliding hole and an outer extrusion sealing frame on the sealing cover, and a locking column slidably connected in the sliding hole;

[0011] The locking pin is equipped with a spring, the locking pin is equipped with a connecting plate, and the connecting plate is equipped with an operating block;

[0012] The connecting plate is equipped with a top rod, the top rod is equipped with a magnetic block, and the locking pin is equipped with a damping sleeve.

[0013] Furthermore, the pre-embedded seat is pre-embedded in the foundation pit body, the water level monitoring pipe is pre-embedded and inserted in the pre-embedded seat, and the monitoring rod is inserted in the inner cavity of the water level monitoring pipe.

[0014] Furthermore, the sealing platform is a square structure, and the inner extrusion sealing frame is a square frame structure with a vertical thickness of eight to nine centimeters on the front view.

[0015] Furthermore, the outer extrusion sealing frame is a frame-shaped structure and is located in the inner groove of the sealing cover. The lateral thickness of the front view of the outer extrusion sealing frame is ten to twelve centimeters.

[0016] Furthermore, the two ends of the spring are fixedly installed with the sealing cover and the connecting plate, respectively. The connecting plate is a disc-shaped structure. The top rod and the magnetic block are a set, and there are two sets in total, symmetrically arranged vertically.

[0017] Furthermore, the operating block is disposed on the outer end face of the connecting plate, and the operating block as a whole has a downward inclined structure with an angle of 48 degrees to the horizontal plane.

[0018] Furthermore, the damping sleeve is fixedly fitted onto the outer wall surface of the locking post, and the damping sleeve is made of high-elastic vulcanized rubber.

[0019] The beneficial effects of the foundation pit engineering monitoring device proposed in this utility model are as follows:

[0020] 1. This utility model achieves an effective and comprehensive double-layer compression sealing effect at the insertion point of the water level monitoring pipe by setting a sealing platform with an inner compression sealing frame on the water level monitoring pipe and a sealing cover with an outer compression sealing frame on the monitoring rod. This avoids the situation where some dust particles in the foundation pit body directly enter the water level monitoring pipe through the gap due to low sealing degree, thus avoiding the inaccurate groundwater level value in the foundation pit body detected by the water level gauge.

[0021] 2. This utility model improves the convenience of installing the water level gauge onto the water level monitoring pipe in the foundation pit body through the symmetrical elastic snap-fit ​​structure, avoiding the troublesome situation of using a screwdriver to continuously rotate and tighten each screw.

[0022] 3. This utility model further improves the damping magnetic attraction stability after the locking pin is inserted into the locking groove by setting a damping sleeve and a top rod structure with a magnetic block. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the water level gauge of this utility model not being connected to the water level monitoring tube.

[0024] Figure 2 This is a three-dimensional schematic diagram of the water level gauge of this utility model being inserted into the water level monitoring tube;

[0025] Figure 3 For the utility model Figure 1 A three-dimensional schematic diagram of the water level gauge;

[0026] Figure 4 For the utility model Figure 2 Cross-sectional view from the center;

[0027] Figure 5 For the utility model Figure 4 Enlarged view of section H in the middle.

[0028] In the diagram: 1 Water level monitoring pipe; 2 Embedded base; 21 Foundation pit main body; 3 Water level gauge; 31 Monitoring rod; 4 Sealing cover; 41 Sliding hole; 42 Outer extrusion sealing frame; 5 Locking column; 51 Damping sleeve; 52 Spring; 6 Sealing platform; 61 Locking groove; 62 Inner extrusion sealing frame; 7 Connecting plate; 71 Operating block; 8 Top rod; 81 Magnetic block. Detailed Implementation

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Reference Figure 1-5A foundation pit engineering monitoring device includes a water level monitoring pipe 1, a pre-embedded seat 2 at the lower end of the water level monitoring pipe 1, a foundation pit body 21 around the pre-embedded seat 2, a water level gauge 3 inserted on the water level monitoring pipe 1, a monitoring rod 31 on the water level gauge 3, a sealing platform 6 on the water level monitoring pipe 1, a locking groove 61 and an inner extrusion sealing frame 62 on the sealing platform 6, a sealing cover 4 on the monitoring rod 31, a sliding hole 41 and an outer extrusion sealing frame 42 on the sealing cover 4, and a locking post 5 slidably connected inside the sliding hole 41.

[0031] A spring 52 is provided on the locking pin 5, a connecting plate 7 is provided on the locking pin 5, and an operating block 71 is provided on the connecting plate 7;

[0032] The connecting plate 7 is provided with a top rod 8, the top rod 8 is provided with a magnetic block 81, and the locking column 5 is provided with a damping sleeve 51. Some of the structures described in this patent are common structures of groundwater level monitoring devices for foundation pit engineering, which are existing technologies. Some existing structures are not drawn or labeled, so there is no need to elaborate.

[0033] The pre-embedded seat 2 is pre-embedded in the foundation pit body 21, the water level monitoring pipe 1 is pre-embedded in the pre-embedded seat 2, and the monitoring rod 31 is inserted into the inner cavity of the water level monitoring pipe 1. This enables real-time monitoring of the groundwater level in the water level monitoring pipe 1 and transmits the monitoring value to the preset display screen on the water level gauge 3. This is the existing technology.

[0034] The sealing platform 6 has a square structure, and the inner extrusion sealing frame 62 has a square frame structure with a vertical thickness of eight to nine centimeters on the front side. Combined with the outer extrusion sealing frame 42 and the inner extrusion sealing frame 62, a comprehensive double-layer extrusion sealing effect can be achieved.

[0035] The outer extrusion sealing frame 42 is a frame-shaped structure and is located in the inner groove of the sealing cover 4. The lateral thickness of the front view of the outer extrusion sealing frame 42 is ten to twelve centimeters. Both the outer extrusion sealing frame 42 and the inner extrusion sealing frame 62 are made of high-elastic NBR nitrile rubber, which has sealing, high elasticity and waterproof properties.

[0036] The two ends of the spring 52 are fixedly installed to the sealing cover 4 and the connecting plate 7 respectively. The connecting plate 7 is a disc-shaped structure. The top rod 8 and the magnetic block 81 are a set, and there are two sets in total, which are symmetrically arranged. The magnetic block 81 is an artificial magnet that can be stably magnetically attracted to the metal sealing cover 4.

[0037] The operating block 71 is located on the outer end face of the connecting plate 7. The operating block 71 has a downward tilted structure and forms an angle of 48 degrees with the horizontal plane. It can be operated by directly hooking the finger.

[0038] The damping sleeve 51 is fixedly sleeved on the outer wall of the locking post 5. The damping sleeve 51 is made of high-elastic vulcanized rubber, which has excellent damping friction and is wear-resistant and durable.

[0039] Working method: Pull the operating blocks 71 on both sides outward with your fingers to drive the locking pins 5 on both sides to slide laterally away from the sliding hole 41. When the locking pins 5 retract into the sliding hole 41, the spring 52 will stretch and deform. Then, the monitoring rod 31 of the water level gauge 3 is vertically inserted into the water level monitoring tube 1. The sealing cover 4 covers the sealing platform 6 completely. At this time, both the outer extrusion sealing frame 42 and the inner extrusion sealing frame 62 are compressed and achieve a complete sealing effect, thereby achieving an effective and comprehensive double-layer extrusion sealing effect. This avoids the situation where some dust particles in the foundation pit body 21 directly enter the water level monitoring tube 1 through the gap due to low sealing degree, and avoids the inaccurate groundwater level value in the foundation pit body 21 monitored by the water level gauge 3 (the monitoring of the groundwater level value in the foundation pit body 21 by the water level gauge 3 is existing technology and does not need to be described in detail).

[0040] Moreover, when the sealing cover 4 completely covers the sealing platform 6, the locking posts 5 on both sides are already aligned with the locking grooves 61. Then, when the finger releases the operating block 71, the spring 52 pulls back, causing the locking posts 5 on both sides to slide quickly laterally and snap into the locking grooves 61, achieving quick snap-fit ​​installation. This improves the convenience of installing the water level gauge 3 on the water level monitoring pipe 1 in the pit body 21, avoiding the troublesome situation of using a screwdriver to continuously rotate and tighten each screw.

[0041] In addition, when the locking pin 5 is inserted into the locking groove 61, the outer wall of the damping sleeve 51 will have a damping friction and anti-slip effect with the inner wall of the locking groove 61. At the same time, the magnetic block 81 will be magnetically attracted to the metal sealing cover 4, which further improves the damping magnetic attraction stability after the locking pin 5 is inserted into the locking groove 61.

[0042] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A foundation pit engineering monitoring device, comprising a water level monitoring pipe (1), characterized in that: The lower end of the water level monitoring pipe (1) is provided with a pre-embedded seat (2), and the periphery of the pre-embedded seat (2) is provided with a foundation pit body (21). A water level gauge (3) is inserted into the water level monitoring pipe (1), and a monitoring rod (31) is provided on the water level gauge (3). A sealing platform (6) is provided on the water level monitoring pipe (1), and a locking groove (61) and an inner extrusion sealing frame (62) are provided on the sealing platform (6). A sealing cover (4) is provided on the monitoring rod (31), and a sliding hole (41) and an outer extrusion sealing frame (42) are provided on the sealing cover (4). A locking pin (5) is slidably connected in the sliding hole (41). The locking pin (5) is provided with a spring (52), the locking pin (5) is provided with a connecting plate (7), and the connecting plate (7) is provided with an operating block (71). The connecting plate (7) is provided with a top rod (8), the top rod (8) is provided with a magnetic block (81), and the locking pin (5) is provided with a damping sleeve (51).

2. The foundation pit engineering monitoring device according to claim 1, characterized in that: The pre-embedded seat (2) is pre-embedded in the foundation pit body (21), the water level monitoring pipe (1) is pre-embedded in the pre-embedded seat (2), and the monitoring rod (31) is inserted into the inner cavity of the water level monitoring pipe (1).

3. The foundation pit engineering monitoring device according to claim 1, characterized in that: The sealing platform (6) is a square structure, and the inner extrusion sealing frame (62) is a square frame structure with a vertical thickness of eight to nine centimeters on the front side.

4. The foundation pit engineering monitoring device according to claim 1, characterized in that: The outer extrusion sealing frame (42) is a frame-shaped structure and is located in the inner groove of the sealing cover (4). The lateral thickness of the front view of the outer extrusion sealing frame (42) is ten to twelve centimeters.

5. The foundation pit engineering monitoring device according to claim 1, characterized in that: The two ends of the spring (52) are fixedly installed with the sealing cover (4) and the connecting plate (7) respectively. The connecting plate (7) is a disc-shaped structure. The top rod (8) and the magnetic block (81) are a set, and there are two sets in total that are symmetrical from top to bottom.

6. The foundation pit engineering monitoring device according to claim 1, characterized in that: The operating block (71) is located on the outer end face of the connecting plate (7). The operating block (71) is a downward inclined structure with an angle of 48 degrees to the horizontal plane.

7. The foundation pit engineering monitoring device according to claim 1, characterized in that: The damping sleeve (51) is fixedly sleeved on the outer wall of the locking post (5), and the damping sleeve (51) is made of high-elastic vulcanized rubber.

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