Real-time monitoring equipment for deformation of deep foundation pit

Abstract

The utility model provides real-time monitoring equipment for deformation of a deep foundation pit, which comprises a monitoring cylinder body, a cylinder body support is fixedly arranged below the outside of the monitoring cylinder body, sealing covers are arranged at two ends of the monitoring cylinder body, an alarm is arranged above the outside of the monitoring cylinder body, two groups of copper ring sheets are arranged in the monitoring cylinder body, and a group of trigger discs are arranged on the periphery of each group of copper ring sheets. The two groups of trigger discs are elastically connected through an insulating spring, each group of trigger discs is connected with one end of a trigger rod, the other end of the trigger rod is connected with an insulating rod, and the insulating rod is arranged on a rod seat; according to the utility model, monitoring components are protected from external interference through sealing design, and the monitoring accuracy is improved. The internal structure design can simultaneously monitor vertical and transverse deformation, and all the parts work independently without interference, so that the system stability is ensured. The insulation spring buffers external force and improves equipment reliability. The insulating rod and the standard plate form a visual observation system, and the deformation degree can be mastered conveniently and rapidly. The design of the adjusting plate enhances the equipment universality and the installation and debugging efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of foundation pit monitoring technology, and in particular relates to a real-time monitoring device for deep foundation pit deformation. Background Technology

[0002] In the field of engineering construction, deep foundation pit support structures are numerous and their working conditions are extremely complex. In recent years, safety accidents caused by the instability of deep foundation pit support structures have shown an increasing trend. This not only poses a serious threat to the lives of construction workers but also has a negative impact on society, raising public concerns about construction safety. As a major hazard source in the construction process, efficient and reliable monitoring and early warning of deep foundation pits have become a key prerequisite for ensuring construction safety.

[0003] Taking the deep foundation pit monitoring device described in Chinese utility model patent CN214832738U as an example, although the device utilizes a structure where a copper rod is located between copper plates, triggering an alarm circuit when the copper rod moves and contacts the copper plates, thus achieving a certain monitoring function, it has significant drawbacks in practical applications. Firstly, in the overall monitoring triggering structure of this device, the copper rod and copper plates are directly exposed to the external environment. In rainy weather, rainwater adhering to the copper rod and copper plates may create a conductive medium between them, leading to false alarm triggering and affecting the accuracy and reliability of monitoring. Secondly, the device has functional limitations, only monitoring the vertical deformation of the deep pit. When the deep pit undergoes lateral deformation, the repeated left-right displacement of the copper rod fails to trigger the alarm, making it impossible to issue an alarm in a timely manner in dangerous situations of lateral deformation of the foundation pit, and hindering the timely detection and handling of potential safety hazards.

[0004] Therefore, it is essential to invent a real-time monitoring device for deep foundation pit deformation. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a real-time monitoring device for deep foundation pit deformation, comprising a monitoring cylinder, a cylinder support, a sealing cover, an alarm, copper rings, a trigger disc, a trigger rod, an insulating rod, a rod base, and an insulating spring. The cylinder support is fixedly installed on the lower exterior of the monitoring cylinder. Sealing covers are installed at both ends of the monitoring cylinder. An alarm is installed on the upper exterior of the monitoring cylinder. Two sets of copper rings are arranged inside the monitoring cylinder. Each set of copper rings has a trigger disc arranged around its perimeter. The two sets of trigger discs are elastically connected by the insulating spring. Each set of trigger discs is connected to one end of the trigger rod, and the other end of the trigger rod is connected to the insulating rod. The insulating rod is fixedly installed on the rod base.

[0006] Preferably, the copper ring plates installed inside the monitoring cylinder body are grouped in pairs, and each group of copper ring plates is respectively connected to two terminals of an alarm, that is, the copper ring plates receive the terminals.

[0007] Preferably, a trigger disc is provided on one side of each copper ring plate. The copper ring plates and the trigger discs are arranged in sequence on the same horizontal line, and one of the trigger discs is located between two copper ring plates of a group.

[0008] Preferably, a group of trigger discs are horizontally installed at one end of a trigger rod, and the two are installed together in a "dry" - shaped structure. The trigger rod is allowed to pass through the copper ring plates. The trigger disc and the trigger rod are trigger terminals.

[0009] Preferably, the two groups of copper ring plates do not interfere with each other, and the two copper ring plates in each group do not contact each other. When the trigger disc and the trigger rod contact a group of copper ring plates, the circuit with the alarm can be achieved.

[0010] Preferably, the trigger rod is located inside the monitoring cylinder body, and the sealing cover installed at the end of the monitoring cylinder body is provided with a through - hole that allows the insulating rod to penetrate and move.

[0011] Preferably, corresponding scale marks are provided on both the insulating rod and the standard plate. The insulating rod can pass through the middle of the standard plate. There are two standard plates, and they are located outside the sealing cover.

[0012] Preferably, the lower end of each standard plate is connected to an adjustment plate by bolts. The adjustment plate is fixedly connected to the cylinder support. A number of mounting holes matching the bolts are horizontally arranged on the adjustment plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The real - time deep - foundation - pit deformation monitoring device of the utility model is provided with a monitoring cylinder body and a sealing cover, and key monitoring and triggering components such as copper ring plates, trigger discs, and trigger rods are sealed inside the monitoring cylinder body. Compared with the existing device, it avoids the direct exposure of copper rods and copper sheets to the external environment, effectively preventing the interference of external factors such as rainwater on the monitoring and triggering structure. In rainy weather or other harsh environments, the situation of false triggering of the alarm due to rainwater adhesion will not occur, greatly improving the accuracy and reliability of monitoring, and ensuring that the monitoring results can truly reflect the actual deformation condition of the deep foundation pit.

[0015] There are trigger discs arranged around the two groups of copper ring plates inside the utility model, and they are elastically connected by insulating springs. This structural design enables it to not only monitor the vertical deformation of the deep foundation pit but also effectively monitor the lateral deformation. When the deep foundation pit undergoes vertical or lateral deformation, the acting force generated by the deformation is transmitted through the trigger rod, thereby pushing the trigger disc to move, making the trigger disc on the trigger rod contact the copper ring plate, that is, the path of the alarm is realized and the alarm is triggered.

[0016] The two groups of copper ring plates inside the monitoring cylinder body of the utility model are independent of each other and do not interfere with each other. The two copper ring plates in each group do not contact each other. This layout method ensures that each monitoring component will not affect each other during operation, guaranteeing the stability of the monitoring system. At the same time, the "dry"-shaped structure formed by the trigger disc horizontally installed at one end of the trigger rod and the connection methods of the trigger rod with the insulating rod and the rod seat ensure the accuracy and reliability of the trigger component when transmitting the deformation signal. The setting of the insulating spring not only plays the role of elastically connecting the trigger disc but also can buffer the external force impact to a certain extent, avoiding damage or misoperation of the monitoring components caused by instantaneous external forces, and further improving the reliability and service life of the entire monitoring device.

[0017] The insulating rod and the corresponding scale marks on the standard plate of the utility model constitute an intuitive deformation amount observation system. Once the deep foundation pit undergoes deformation, the insulating rod will generate a relative displacement along with the deformation of the foundation pit. Engineering personnel only need to observe the position change of the insulating rod relative to the scale marks on the standard plate to quickly and intuitively master the deformation degree of the deep foundation pit, so as to make decisions in a timely and accurate manner. In addition, the insulating rod passes through two standard plates located outside the sealing cover. This structure provides stable guidance and precise positioning for the movement of the insulating rod, ensuring the reliability of the monitoring data and greatly facilitating the observation and recording of the movement of the insulating rod.

[0018] The lower end of each standard plate of the utility model is connected to the adjustment plate by bolts. The multiple mounting holes horizontally distributed on the adjustment plate enable engineering personnel to flexibly change the position and angle of the standard plate by adjusting the bolt positions to fit the monitoring environment and installation requirements of different deep foundation pits, greatly improving the installation and debugging efficiency and versatility of the equipment. At the same time, the two standard plates and the cylinder body support are arranged in sequence along the same horizontal line. This layout enhances the overall structural stability of the equipment, effectively reducing the interference of equipment shaking or tilting on the monitoring results, ensuring the accuracy of the monitoring data, and extending the service life of the equipment. Description of the Drawings

[0019] Figure 1 is the overall structural schematic diagram of the utility model.

[0020] Figure 2 is the partial cross-sectional structural schematic diagram of the utility model.

[0021] Figure 3 This is a utility model Figure 2 A schematic diagram of the main structure.

[0022] Figure 4 This is a side view of the structure of this utility model.

[0023] Figure 5 This is a schematic diagram of the adjustment plate and insulating rod structure of this utility model.

[0024] In the picture:

[0025] 1. Monitoring cylinder body; 2. Cylinder body support; 3. Sealing cover; 4. Alarm; 5. Copper ring plate; 6. Trigger plate; 7. Trigger rod; 8. Insulating rod; 9. Rod seat; 10. Insulating spring; 11. Adjustment plate; 12. Mounting hole; 13. Bolt; 14. Standard plate; 15. Scale mark. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0027] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0028] As attached Figure 1 To be continued Figure 5 As shown:

[0029] A real-time deformation monitoring device for deep foundation pits provided by the utility model includes a monitoring cylinder body 1, a cylinder body support 2, a sealing cover 3, an alarm 4, a copper ring plate 5, a trigger disc 6, a trigger rod 7, an insulating rod 8, a rod seat 9 and an insulating spring 10. The cylinder body support 2 is fixedly installed below the outer part of the monitoring cylinder body 1. Sealing covers 3 are installed at both ends of the monitoring cylinder body 1. The alarm 4 is installed above the outer part of the monitoring cylinder body 1. Two alarms 4 can be selectively set. Two groups of copper ring plates 5 are arranged inside the monitoring cylinder body 1. One group of trigger discs 6 is arranged around each group of copper ring plates 5. The two groups of trigger discs 6 are elastically connected by the insulating spring 10. One end of each trigger rod 7 is connected to each trigger disc 6, and the other end of the trigger rod 7 is connected to the insulating rod 8. The insulating rod 8 is fixedly installed on the rod seat 9.

[0030] Furthermore, two-by-two groups of copper ring plates 5 are installed inside the monitoring cylinder body 1. Each group of copper ring plates 5 is respectively connected to two terminals of the alarm 4. The copper ring plates 5 function as receiving terminals. The copper ring plates 5 can be made of good-conductivity purple copper material, which can not only ensure good electrical conductivity but also have certain mechanical strength and are not easily deformed. Its inner diameter size is determined according to the actual monitoring requirements and the movement range of the trigger rod 7, generally between 5 and 10 centimeters, to ensure that the trigger disc 6 and the trigger rod 7 can accurately trigger the copper ring plates 5.

[0031] Furthermore, a trigger disc 6 is arranged on one side of each copper ring plate 5. The copper ring plates 5 and the trigger discs 6 are arranged in sequence on the same horizontal line. It should be noted that one of the trigger discs 6 is located between a group of two copper ring plates 5. The trigger disc 6 can be made of stainless steel material to ensure its corrosion resistance and mechanical properties. The diameter of the trigger disc 6 is slightly larger than the inner diameter of the copper ring plate 5, which can avoid the embarrassing situation that the trigger disc 6 cannot trigger the copper ring plate 5 while ensuring the trigger sensitivity.

[0032] Furthermore, the trigger disc 6 is horizontally installed at one end of the trigger rod 7, and the two are installed together in a "dry" - shaped structure. The trigger rod 7 passes through the copper ring plate 5. The trigger disc 6 and the trigger rod 7 together form a trigger terminal. The trigger rod 7 can be made of high-strength aluminum alloy material to ensure the rigidity and stability when transmitting deformation signals. The connection between the trigger disc 6 and the trigger rod 7 can be welded to ensure that the two are firmly connected and will not loosen during long-term use, affecting the monitoring effect.

[0033] Furthermore, the copper ring plates 5 do not interfere with each other, and the two copper ring plates 5 in each group do not contact each other. When the trigger disc 6 and the trigger rod 7 contact a group of copper ring plates 5, the circuit with the alarm 4 can be realized. This design ensures the independence of each monitoring area and avoids the misjudgment of the entire monitoring system caused by the triggering of one place.

[0034] Furthermore, the trigger rod 7 is located inside the monitoring cylinder 1, and the sealing cap 3 installed at the end of the monitoring cylinder 1 has a through hole that allows the insulating rod 8 to pass through and move. The sealing cap 3 can be made of rubber, which has good sealing and flexibility, ensuring the airtightness of the monitoring cylinder 1 and preventing external impurities from entering and affecting the monitoring components, while also providing some space for the insulating rod 8 to move. The insulating rod 8 can be made of ceramic, and its diameter is slightly smaller than the diameter of the through hole on the sealing cap 3, to ensure that the insulating rod 8 can move flexibly within the through hole while ensuring airtightness.

[0035] Furthermore, both the insulating rod 8 and the standard plate 14 are precisely marked with corresponding scale marks 15. The insulating rod 8 can smoothly pass through the middle of the standard plate 14. There are two standard plates 14, both located outside the sealing cover 3. This layout design allows the insulating rod 8 to undergo relative displacement as the deep foundation pit deforms. By observing the positional change of the insulating rod 8 relative to the scale marks 15 on the standard plate 14, the degree of deformation of the deep foundation pit can be intuitively and accurately obtained.

[0036] Furthermore, the lower end of each standard plate 14 is connected to the adjusting plate 11 by bolts 13. The adjusting plate 11 is fixedly connected to the cylinder support 2, and several mounting holes 12 matching the bolts 13 are arranged horizontally on the adjusting plate 11. With this design, engineers can flexibly and conveniently adjust the position and angle of the standard plate 14 by adjusting the position of the bolts 13 in the mounting holes 12, thereby adapting to the complex monitoring environment and diverse installation requirements of different deep foundation pits.

[0037] The working principle is as follows: First, the cylinder support 2 and the rod seat 9 are fixedly installed on the support structure of the deep foundation pit to ensure the stability of the entire monitoring equipment. The cylinder support 2 provides a stable support for the monitoring cylinder 1, enabling it to be reliably placed in the required monitoring position; the rod seat 9 provides a stable installation foundation for the insulating rod 8, ensuring the positional accuracy of components such as the trigger rod 7.

[0038] When the support structure of a deep foundation pit undergoes vertical or lateral deformation, this deformation is first transmitted to the monitoring equipment through the displacement of the surrounding soil or supporting structure. Since the insulating rod 8 is connected to the trigger rod 7, the trigger rod 7 moves along with the displacement of the insulating rod 8, causing the trigger disc 6 to move. When the deformation reaches a certain level, three situations occur: First, lateral deformation of the foundation pit occurs. In this case, only the trigger disc 6 contacts the opposite copper ring 5. The trigger disc 6 acts as a trigger terminal; after contacting the copper ring 5, current can be transmitted through the trigger rod 7, thus establishing a path for the alarm 4 and triggering the alarm. Second, vertical deformation of the foundation pit occurs. In this case, only the trigger rod 7 contacts the opposite copper ring 5. The trigger rod 7 directly acts as a conductive medium, establishing a path for the alarm 4 and emitting an alarm signal. Third, multi-directional deformation of the foundation pit occurs. In this case, both the trigger rod 7 and the trigger disc 6 simultaneously contact the opposite copper ring 5, again establishing a path for the alarm 4 through the trigger rod 7. Since the copper ring plate 5 is connected to the alarm 4, once the trigger plate 6 or the trigger rod 7 comes into contact with the copper ring plate 5, a complete circuit will be formed, realizing the path of the alarm 4, and the alarm 4 will then emit an alarm signal.

[0039] Throughout the monitoring process, since the copper rings 5 ​​do not interfere with each other and the two copper rings 5 ​​in each group do not contact each other, triggering in one area will not affect other monitoring areas, ensuring the independence of each monitoring area. Furthermore, the sealing caps 3 installed at both ends of the monitoring cylinder 1 effectively prevent external impurities from entering, avoiding malfunction of the monitoring components due to interference from impurities. Simultaneously, the through holes on the sealing caps 3 provide movement space for the insulating rod 8, ensuring that the insulating rod 8 can smoothly transmit deformation to components such as the trigger rod 7. The corresponding scale marks 15 on the insulating rod 8 and the standard plate 14 can reflect the degree of deformation of the deep foundation pit in real time during the monitoring process. By observing the changes in the scale marks 15, engineers can understand the deformation trend of the deep foundation pit before the alarm 4 sounds, so as to take timely measures to further ensure construction safety. This multi-faceted collaborative design makes the monitoring results more accurate and reliable, providing timely alarm information on deep foundation pit deformation to construction personnel, and comprehensively ensuring construction safety.

[0040] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A deep foundation pit deformation real-time monitoring device, characterized in that, The utility model provides a kind of monitoring cylinder, including monitoring cylinder (1), cylinder support (2), sealing cover (3), alarm (4), copper ring piece (5), trigger disc (6), trigger rod (7), insulating rod (8), rod seat (9) and insulating spring (10), the cylinder support (2) is fixedly installed in the lower outside of the monitoring cylinder (1), the sealing cover (3) is installed and is provided with in the both ends of the monitoring cylinder (1), the alarm (4) is installed and is provided with in the upper outside of the monitoring cylinder (1), the inside of the monitoring cylinder (1) is provided with two groups of copper ring piece (5), each group of copper ring piece (5) is provided with a group of trigger disc (6) around, two groups of trigger disc (6) are elastically connected by the insulating spring (10), each group of trigger disc (6) is connected with one end of trigger rod (7), the other end of trigger rod (7) is connected with insulating rod (8), and insulating rod (8) is fixedly installed on rod seat (9).

2. The real-time deformation monitoring device for deep foundation pit according to claim 1, characterized in that: The copper ring piece (5) installed in the inside of the monitoring cylinder (1) is two by two as a group, and each group of copper ring piece (5) is connected with two terminals of alarm (4), i.e. the copper ring piece (5) receives terminal.

3. The real-time deformation monitoring device for deep foundation pit according to claim 2, characterized in that: Each copper ring piece (5) is provided with trigger disc (6) on one side, and the copper ring piece (5) and trigger disc (6) are sequentially arranged on the same horizontal line, and one of the trigger disc (6) is located between the two copper ring pieces (5) in a group.

4. The real-time deformation monitoring device for deep foundation pit according to claim 3, characterized in that: A group of trigger disc (6) is horizontally installed on one end of trigger rod (7), and the two are installed together in a "gan" type structure, the trigger rod (7) allows to pass through the copper ring piece (5), and the trigger disc (6) and the trigger rod (7) are trigger terminals.

5. The real-time deformation monitoring device for deep foundation pit according to claim 4, characterized in that: Two groups of copper ring piece (5) do not interfere with each other, and the two copper ring pieces (5) in each group do not contact each other, and the trigger disc (6) and the trigger rod (7) contact a group of copper ring pieces (5), i.e. the access to the alarm (4) can be realized.

6. The real-time deformation monitoring device for deep foundation pit according to claim 5, characterized in that: The trigger rod (7) is located in the inside of the monitoring cylinder (1), and the sealing cover (3) installed at the end of the monitoring cylinder (1) is provided with a through hole allowing the insulating rod (8) to pass in and move.

7. The deep foundation deformation real-time monitoring device according to claim 6, characterized in that: The insulating rod (8) and the standard plate (14) are provided with corresponding scale marks (15), the insulating rod (8) can pass through the middle of the standard plate (14), and the standard plate (14) is provided with two and located outside the sealing cover (3).

8. The deep foundation deformation real-time monitoring device according to claim 7, characterized in that: The lower end of each standard plate (14) is connected with the adjusting plate (11) by bolt (13), the adjusting plate (11) is fixedly connected with the cylinder support (2), and a plurality of mounting holes (12) matched with the bolt (13) are horizontally arranged on the adjusting plate (11).

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