Displacement monitoring device for pile foundation displacement and internal force pre-detection

Abstract

The utility model relates to the technical field of pile foundation displacement and internal force pre-check monitoring, and discloses a displacement monitoring device for pile foundation displacement and internal force pre-check, which is provided with a connecting device and a monitoring device, the connecting device is used for installing a main body, and the monitoring device is used for monitoring. The problems that an existing pile foundation displacement and internal force pre-detection method has some obvious problems are solved, a device capable of rapidly and firmly monitoring the displacement of a column foundation is urgently needed for solving the defects, firstly, the traditional method often depends on manual regular detection or a simple mechanical sensor, and the detection time is shortened; the existing methods are low in efficiency and difficult to realize continuous and real-time data acquisition, so that missing of key information is possibly caused, and secondly, unpredictable displacement change of a pile foundation is generated due to the fact that construction environments are complex and changeable, especially in a soft soil foundation or an earthquake frequently-occurring area, and the pile foundation is easily influenced by external factors.

Description

Technical Field

[0001] The utility model belongs to the technical field of pre-inspection monitoring of pile foundation displacement and internal force, and particularly relates to a displacement monitoring device for pre-inspection of pile foundation displacement and internal force. Background Art

[0002] Pile foundations are a widely used foundation structure form in civil engineering. They are mainly used to transfer the load of a building through a series of long columnar members (i.e., piles) buried deep underground to deeper and more stable soil or rock layers. These piles can be made of materials such as reinforced concrete, precast concrete, wood, steel, etc., and are installed underground by driving, bored casting or other construction methods. The main purpose of pile foundation design is to improve the bearing capacity of the building's foundation and reduce the risk of settlement and differential settlement, especially important in soft soil foundations or earthquake-prone areas. In addition, pile foundations can also effectively resist horizontal loads such as wind force and water flow impact to ensure the safety and stability of the structure. According to different geological conditions, building requirements and economic considerations, engineers will choose appropriate pile types and their layout methods to achieve the best foundation support effect.

[0003] The existing pile foundations require a device that can quickly and firmly monitor the displacement of the column foundation for pre-inspection of displacement and internal force. The problems existing in the above technology are as follows: There are some significant problems in the existing methods for pre-inspection of pile foundation displacement and internal force. These deficiencies urgently require a device that can quickly and firmly monitor the displacement of the column foundation to solve them. First of all, traditional methods often rely on manual regular inspections or relatively simple mechanical sensors. These means are not only inefficient but also difficult to achieve continuous and real-time data collection, which may lead to the omission of key information. Secondly, due to the complex and changeable construction environment, especially in soft soil foundations or earthquake-prone areas, pile foundations are easily affected by external factors and produce unpredictable displacement changes. This requires the monitoring system to have high sensitivity and reliability. In addition, traditional monitoring technologies also have problems such as inconvenient installation, high maintenance costs and high requirements for the professional skills of operators, which limit their wide application. Summary of the Utility Model

[0004] In view of the problems existing in the prior art, the utility model provides a displacement monitoring device for pre-inspection of pile foundation displacement and internal force that can overcome or at least partially solve the above problems.

[0005] The present utility model is realized as follows. A displacement monitoring device for pre-checking the displacement and internal force of a pile foundation includes a main body, a base, a fixing plate, a mating plate, and a handle. The left inner wall of the main body is slidably connected to the surface of the fixing plate through a chute, and the right inner wall of the main body is slidably connected to the surface of the mating plate through a chute. The lower end of the main body is fixedly connected to the inner wall of the base. The upper ends of the fixing plate and the mating plate are both fixedly connected to the lower end of the handle. A connecting device is provided at the front end of the fixing plate, and a monitoring device is provided at the upper end of the main body;

[0006] The connecting device is used for installing the main body;

[0007] The monitoring device is used for monitoring.

[0008] To improve the installation efficiency, preferably, the connecting device includes a connecting rod, a travel groove, an installation block, a clamping block, a telescopic rod, a spring, and a mating component. The travel groove is opened inside the installation block. The inner wall of the travel groove is slidably connected to the surfaces of the two clamping blocks. The rear ends of the two clamping blocks are respectively fixedly connected to the upper ends of the four springs. The upper end of the clamping block is fixedly connected to one end of the connecting rod. The upper end of the telescopic rod is fixedly connected to the surface of the clamping block. The surface of the installation block is in contact with the surface of the mating component. Through the design of the spring and the telescopic rod, when the ejector rod pushes the clamping block, the clamping block will compress the spring and move along the travel groove. Once the ejector rod is in place, the elastic force generated by the spring restoring its original state will cause the clamping block to tightly lock the ejector rod, forming a self-locking mechanism, ensuring a firm connection between the fixing plate and the mating plate, and further enhancing the reliability of the entire device for fixing the position of the column foundation. By pulling the handle, the expansion or contraction of the fixing plate and the mating plate relative to the main body can be realized, enabling the user to quickly and conveniently complete the wrapping process of the column foundation. At the same time, when it is necessary to adjust or remove the device, simply sliding the connecting rod to both sides can unlock the mechanism, greatly simplifying the operation steps and improving the work efficiency.

[0009] To improve the authenticity of the data, preferably, the monitoring device includes an adjusting screw, a fixing block, a contact plate, and a roller. The inner wall of the fixing block is threadedly connected to the surface of the adjusting screw. One end of the adjusting screw is fixedly connected to the rear end of the contact plate. One side of the contact plate is rotatably connected to the inner wall of the roller through a rotating shaft. By connecting the adjusting screw and the fixing block in a threaded manner and fixedly connecting one end of the adjusting screw to the contact plate, the user can finely adjust the position of the contact plate by rotating the adjusting screw. A roller is installed on one side of the contact plate and connected to it through a rotating shaft. Such a structural design effectively reduces the direct friction between the contact surfaces, not only improving the running smoothness of the entire system, but also enabling the roller to quickly respond and roll when even a very slight position change occurs in the pile foundation, and observing the displacement distance through the pointer on its surface. This greatly improves the sensitivity of the monitoring device for pile foundation displacement detection and ensures the authenticity and immediacy of data collection.

[0010] To improve the fixing effect, preferably, the matching component includes an auxiliary block and a push rod. The inner wall of the auxiliary block is fixedly connected to the surface of the push rod. The internal fixing method enables the position of the push rod relative to the auxiliary block to be fixed, reducing the risk of functional failure caused by inaccurate relative positions between parts. At the same time, it also ensures that when the push rod enters the mounting block, it can correctly push the latch along the travel groove, thereby achieving the expected locking effect.

[0011] To improve the fixing effect, preferably, the surface of the mounting block is fixedly connected to the front surface of the fixing plate. The surfaces of the two connecting rods are slidably connected to the inner wall of the mounting block. The lower end of the spring is fixedly connected to the inner wall of the mounting block. The lower end of the telescopic rod is fixedly connected to the inner wall of the mounting block. The sliding connection between the two connecting rods and the inner wall of the mounting block allows the connecting rods to smoothly move along a predetermined path when subjected to external forces, not only reducing unnecessary frictional resistance, but also ensuring the free sliding of the latch in the travel groove, thus achieving a more stable and unobstructed operation process. The fixed connection between the lower end of the spring and the inner wall of the mounting block provides the necessary elastic support for the entire system. When the push rod pushes the latch, the spring is compressed and stores energy; once the push rod is in place, the spring releases its stored energy, prompting the latch to quickly reset and lock the push rod.

[0012] To improve the reliability of the device, preferably, the surface of the auxiliary block is in contact with the surface of the mounting block, and the surface of the push rod is in contact with the surfaces of the two latches. The design of the direct contact between the surface of the auxiliary block and the surface of the mounting block ensures the closeness between the two, which helps to maintain the position accuracy of the entire mechanism during operation. When the push rod pushes the latch, due to the direct contact between the surface of the push rod and the surface of the latch, accurate and consistent action transmission can be achieved, thus ensuring the effectiveness of the locking mechanism.

[0013] To improve the stability of the device, preferably, the lower end of the fixed block is fixedly connected to the upper end of the main body, firmly connecting the lower end of the fixed block to the upper end of the main body, forming a rigid support structure. Such a design increases the overall stability of the monitoring device, enabling it to exhibit higher anti-deformation ability when subjected to external forces, thereby ensuring the accuracy of the measurement results and the long-term stability of the device.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The utility model is provided with a connecting device, a monitoring device, a connecting rod, a mounting block, a clamping block, a matching component, an adjusting screw rod, a fixing block, a contact plate and a roller. The connecting device is used for installing the main body, and the monitoring device is used for monitoring. Through the design of the spring and the telescopic rod, when the ejector rod pushes the clamping block, the clamping block will compress the spring and move along the stroke groove. Once the ejector rod is in place, the elastic force generated by the spring restoring its original state will cause the clamping block to tightly lock the ejector rod, forming a self-locking mechanism, ensuring the firm connection between the fixing plate and the matching plate, and further enhancing the reliability of the entire device for fixing the position of the column foundation. By pulling the handle, the expansion or contraction movement of the fixing plate and the matching plate relative to the main body can be realized, enabling the user to quickly and conveniently complete the wrapping process of the column foundation. At the same time, when the device needs to be adjusted or removed, the unlocking mechanism can be simply unlocked by sliding the connecting rod to both sides, greatly simplifying the operation steps and improving the work efficiency. Through the design of connecting the adjusting screw rod and the fixing block in a threaded manner and fixing one end of the adjusting screw rod to the contact plate, the user can finely adjust the position of the contact plate by rotating the adjusting screw rod. A roller is installed on one side of the contact plate and connected to it through a rotating shaft. Such a structural design effectively reduces the direct friction between the contact surfaces, not only improving the smooth operation of the entire system, but also enabling the roller to quickly respond and roll when even very slight position changes occur in the pile foundation, and observing the displacement distance through the pointer on its surface. This greatly improves the sensitivity of the monitoring device for detecting the displacement of the pile foundation, ensuring the authenticity and immediacy of data collection, and solving some significant problems existing in the existing methods for pre-inspecting the displacement and internal force of pile foundations. Firstly, traditional methods often rely on manual regular inspections or relatively simple mechanical sensors, which are not only inefficient but also difficult to achieve continuous and real-time data collection, thus possibly leading to the omission of key information. Secondly, due to the complex and changeable construction environment, especially in soft soil foundations or earthquake-prone areas, the pile foundation is easily affected by external factors and generates unpredictable displacement changes, which requires the monitoring system to have high sensitivity and reliability. In addition, traditional monitoring technologies also have problems such as inconvenient installation, high maintenance costs, and high requirements for the professional skills of operators, which limit their wide application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the main body provided by an embodiment of the utility model;

[0017] Figure 2 is a three-dimensional structural schematic diagram of the main body in the use state provided by an embodiment of the utility model;

[0018] Figure 3 is a three-dimensional structural schematic diagram of the connecting device provided by an embodiment of the utility model;

[0019] Figure 4 This is a schematic three-dimensional structure diagram of the monitoring device provided by an embodiment of the present utility model.

[0020] In the figure: 1. Connecting device; 101. Connecting rod; 102. Stroke groove; 103. Mounting block; 104. Clamping block; 105. Telescopic rod; 106. Spring; 107. Matching component; 1071. Auxiliary block; 1072. Thrust rod; 2. Monitoring device; 201. Adjusting screw; 202. Fixed block; 203. Contact plate; 204. Roller; 3. Main body; 4. Base; 5. Fixed plate; 6. Matching plate; 7. Handle. Detailed implementation manner

[0021] In order to further understand the invention content, features and effects of the present utility model, the following embodiments are cited and detailed as follows in conjunction with the accompanying drawings.

[0022] The structure of the present utility model will be described in detail below with reference to the accompanying drawings.

[0023] Such as Figures 1 to 4As shown in the figure, a displacement monitoring device for pre-inspecting the displacement and internal force of a pile foundation provided by an embodiment of the present utility model includes a main body 3, a base 4, a fixing plate 5, a mating plate 6 and a handle 7. The left inner wall of the main body 3 is slidably connected to the surface of the fixing plate 5 through a chute, and the right inner wall of the main body 3 is slidably connected to the surface of the mating plate 6 through a chute. The lower end of the main body 3 is fixedly connected to the inner wall of the base 4. The upper ends of the fixing plate 5 and the mating plate 6 are both fixedly connected to the lower end of the handle 7. A connecting device 1 is provided at the front end of the fixing plate 5, and a monitoring device 2 is provided at the upper end of the main body 3. The connecting device 1 is used for installing the main body 3, and the monitoring device 2 is used for monitoring. The connecting device 1 includes a connecting rod 101, a travel groove 102, a mounting block 103, a clamping block 104, a telescopic rod 105, a spring 106 and a mating component 107. The travel groove 102 is opened inside the mounting block 103. The inner wall of the travel groove 102 is slidably connected to the surfaces of the two clamping blocks 104. The rear ends of the two clamping blocks 104 are respectively fixedly connected to the upper ends of the four springs 106. The upper end of the clamping block 104 is fixedly connected to one end of the connecting rod 101. The upper end of the telescopic rod 105 is fixedly connected to the surface of the clamping block 104. The surface of the mounting block 103 is in contact with the surface of the mating component 107. Through the design of the spring 106 and the telescopic rod 105, when the ejector rod 1072 pushes the clamping block 104, the clamping block 104 will compress the spring 106 and move along the travel groove 102. Once the ejector rod 1072 is in place, the elastic force generated by the spring 106 returning to its original state will cause the clamping block 104 to tightly lock the ejector rod 1072, forming a self-locking mechanism, ensuring a firm connection between the fixing plate 5 and the mating plate 6, and thus enhancing the reliability of the entire device for fixing the position of the column foundation. By pulling the handle 7, the fixing plate 5 and the mating plate 6 can be expanded or contracted relative to the main body 3, enabling the user to quickly and conveniently complete the process of wrapping the column foundation. At the same time, when the device needs to be adjusted or removed, simply sliding the connecting rod 101 to both sides can unlock the mechanism, greatly simplifying the operation steps and improving the work efficiency. The monitoring device 2 includes an adjusting screw 201, a fixing block 202, a contact plate 203 and a roller 204. The inner wall of the fixing block 202 is threadedly connected to the surface of the adjusting screw 201. One end of the adjusting screw 201 is fixedly connected to the rear end of the contact plate 203. One side of the contact plate 203 is rotatably connected to the inner wall of the roller 204 through a rotating shaft. Through the design of threadedly connecting the adjusting screw 201 with the fixing block 202 and fixedly connecting one end of the adjusting screw 201 to the contact plate 203, the user can finely adjust the position of the contact plate 203 by rotating the adjusting screw 201. One side of the contact plate 203 is equipped with a roller 204 and is connected to it through a rotating shaft. Such a structural design effectively reduces the direct friction between the contact surfaces, not only improving the smooth operation of the entire system, but also enabling the roller 204 to quickly respond and roll when even very slight position changes occur in the pile foundation, greatly enhancing the sensitivity of the monitoring device 2 for detecting the displacement of the pile foundation and ensuring the authenticity and immediacy of data collection.The mating assembly 107 includes an auxiliary block 1071 and a push rod 1072. The inner wall of the auxiliary block 1071 is fixedly connected to the surface of the push rod 1072. The position of the push rod 1072 relative to the auxiliary block 1071 can be fixed by an internal fixing method, which reduces the risk of functional failure caused by inaccurate relative positions between parts. At the same time, it also ensures that when the push rod 1072 enters the mounting block 103, it can correctly push the block 104 to move along the travel groove 102, thereby achieving the expected locking effect. The surface of the mounting block 103 is fixedly connected to the front end surface of the fixing plate 5. The two connecting The surface of rod 101 is slidably connected to the inner wall of mounting block 103, the lower end of spring 106 is fixedly connected to the inner wall of mounting block 103, the lower end of telescopic rod 105 is fixedly connected to the inner wall of mounting block 103, and the two connecting rods 101 are slidably connected to the inner wall of mounting block 103, allowing the connecting rod 101 to move smoothly along a predetermined path when subjected to external force, which not only reduces unnecessary friction resistance, but also ensures the free sliding of block 104 in travel groove 102, thereby achieving a smoother and unblocked operation process. The fixed connection between them provides the necessary elastic support for the whole system. When the push rod 1072 pushes the card block 104, the spring 106 is compressed and stores energy. Once the push rod 1072 is in place, the spring 106 releases its stored energy, prompting the card block 104 to quickly reset and lock the push rod 1072. The surface of the auxiliary block 1071 contacts the surface of the mounting block 103, and the surface of the push rod 1072 contacts the surfaces of the two card blocks 104. The design of direct contact between the surface of the auxiliary block 1071 and the surface of the mounting block 103 ensures that the two are close to each other, which helps to keep the whole mechanism in operation. The position accuracy during the process is improved. When the push rod 1072 pushes the block 104, the push rod 1072 surface is in direct contact with the block 104 surface, which can achieve accurate and consistent motion transmission, thereby ensuring the effectiveness of the locking mechanism. The lower end of the fixed block 202 is fixedly connected to the upper end of the main body 3, and the lower end of the fixed block 202 is firmly connected to the upper end of the main body 3 to form a rigid support structure. This design increases the overall stability of the monitoring device 2, enabling it to exhibit higher anti-deformation ability when subjected to external forces, thereby ensuring the accuracy of the measurement results and the long-term stability of the device.

[0024] The working principle of this utility model:

[0025] During use, first press the main body 3 tightly against the surface of the column base. Subsequently, by pulling the handle 7 located at the top of the fixed plate 5 and the mating plate 6, these two plates can be smoothly withdrawn from the inside of the main body 3 and unfolded to form an annular structure surrounding the column base. This action not only effectively wraps the column base but also ensures the positional stability of the main body 3 relative to the column base. At the same time, to further enhance the reliability of fixation, when the fixed plate 5 and the mating plate 6 come into contact, as the ejector rod 1072 enters the inside of the mounting block 103, the ejector rod 1072 will push the two side latch blocks 104 to move outward. During this process, the latch blocks 104 will slide along the travel groove 102 and compress the spring 106 and the telescopic rod 105 arranged at the rear. Once the ejector rod 1072 is fully in place, the originally compressed spring 106 immediately releases energy, prompting the latch blocks 104 to quickly reset and firmly lock the ejector rod 1072, thus forming a stable connection structure. If disassembly or position adjustment is required, simply slide the connecting rod 101 to both sides, and since the connecting rod 101 is fixed to the latch blocks 104, this mechanism can be easily unlocked. In addition, to more precisely adjust the relative position between the main body 3 and the column base, the device is also equipped with an adjusting screw 201 located within the fixed block 202 at the top of the main body 3. By rotating the adjusting screw 201, the user can precisely control the distance between the contact plate 203 and the column base. At the same time, the contact plate 203 is equipped with rollers 204, which not only helps to reduce friction and improve the smoothness of movement but also, when the main body 3 undergoes any slight displacement, the rollers 204 will roll accordingly and drive the pointer attached to them to move, thereby visually displaying the displacement amount and achieving an efficient and accurate monitoring function.

[0026] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0027] The above are only the preferred embodiments of the present invention and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present invention.

Claims

1. A displacement monitoring device for pre-inspecting the displacement and internal force of a pile foundation, comprising a main body (3), a base (4), a fixing plate (5), a matching plate (6) and a handle (7). The left inner wall of the main body (3) is slidably connected to the surface of the fixing plate (5) through a chute, and the right inner wall of the main body (3) is slidably connected to the surface of the matching plate (6) through a chute. The lower end of the main body (3) is fixedly connected to the inner wall of the base (4), and the upper ends of the fixing plate (5) and the matching plate (6) are both fixedly connected to the lower end of the handle (7). It is characterized in that: A connecting device (1) is provided at the front end of the fixed plate (5), and a monitoring device (2) is provided at the upper end of the main body (3); The connecting device (1) is used for installing the main body (3); The monitoring device (2) is used for monitoring.

2. The displacement monitoring device for pre-inspection of pile foundation displacement and internal force according to claim 1, characterized in that: The connecting device (1) includes a connecting rod (101), a travel groove (102), a mounting block (103), a clamping block (104), a telescopic rod (105), a spring (106) and a matching component (107). The travel groove (102) is formed inside the mounting block (103). The inner wall of the travel groove (102) is slidably connected to the surfaces of the two clamping blocks (104). The rear ends of the two clamping blocks (104) are respectively fixedly connected to the upper ends of the four springs (106). The upper end of the clamping block (104) is fixedly connected to one end of the connecting rod (101). The upper end of the telescopic rod (105) is fixedly connected to the surface of the clamping block (104). The surface of the mounting block (103) is in contact with the surface of the matching component (107).

3. The displacement monitoring device for pre-inspection of pile foundation displacement and internal force according to claim 2, characterized in that: The monitoring device (2) includes an adjusting screw (201), a fixed block (202), a contact plate (203) and a roller (204). The inner wall of the fixed block (202) is threadedly connected to the surface of the adjusting screw (201). One end of the adjusting screw (201) is fixedly connected to the rear end of the contact plate (203). One side of the contact plate (203) is rotatably connected to the inner wall of the roller (204) through a rotating shaft.

4. The displacement monitoring device for pre-inspection of pile foundation displacement and internal force according to claim 2, characterized in that: The matching component (107) includes an auxiliary block (1071) and a push rod (1072). The inner wall of the auxiliary block (1071) is fixedly connected to the surface of the push rod (1072).

5. The displacement monitoring device for pre-inspection of pile foundation displacement and internal force according to claim 2, characterized in that: The surface of the mounting block (103) is fixedly connected to the front end surface of the fixed plate (5). The surfaces of the two connecting rods (101) are slidably connected to the inner wall of the mounting block (103). The lower ends of the springs (106) are fixedly connected to the inner wall of the mounting block (103). The lower end of the telescopic rod (105) is fixedly connected to the inner wall of the mounting block (103).

6. The displacement monitoring device for pre-inspection of pile foundation displacement and internal force according to claim 4, characterized in that: The surface of the auxiliary block (1071) is in contact with the surface of the mounting block (103). The surface of the push rod (1072) is in contact with the surfaces of the two clamping blocks (104).

7. The displacement monitoring device for pre-inspection of pile foundation displacement and internal force according to claim 3, characterized in that: The lower end of the fixed block (202) is fixedly connected to the upper end of the main body (3).

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