Controllable sedimentation device for foundation engineering

Abstract

The utility model discloses a controllable settlement device for foundation engineering, and relates to the technical field of settlement devices.The controllable settlement device comprises a connecting rod and a fixing mechanism fixedly arranged at the top end of the connecting rod, a measuring rod is fixedly arranged at the top end of the fixing mechanism, the outer side of the measuring rod is slidably sleeved with a sleeve rod, and a threaded rod is arranged in the measuring rod in a threaded mode; a motor for providing driving force for the screw rod is arranged at the top end of the screw rod, the outer side of the upper end of the sleeve rod is fixedly sleeved with a datum plate, and a distance sensor and a pressure sensor are fixedly arranged on the two sides of the bottom end of the datum plate respectively; the change of the distance between the distance sensor and the surface of the foundation is monitored in real time through the distance sensor, when the settlement amount exceeds a threshold value, the system automatically calculates the compensation amount and sends out an instruction, and the motor is started to drive the transmission shaft to rotate and drive the screw to rotate synchronously, so that the sleeve rod does linear telescopic motion and drives the datum plate to ascend and descend synchronously; real-time monitoring and dynamic compensation of structure settlement are achieved, and the structure elevation stability is maintained.

Description

Technical Field

[0001] This application relates to the field of settlement device technology, and in particular to a controllable settlement device for foundation engineering. Background Technology

[0002] Settlement monitoring devices for foundation engineering are specialized equipment used to monitor the vertical settlement of building foundations, ground, or structures under load. They typically consist of sensors, a data acquisition system, a transmission module, and processing software. By measuring parameters such as the amount of settlement, settlement rate, and tilt of the ground or structure in real time, they provide crucial data support for engineering safety assessment, design optimization, and hazard warning. They are widely used in engineering fields such as bridges, subways, tunnels, buildings, and power transmission line towers.

[0003] The height adjustment of the monitoring rod of the settlement device used in traditional foundation engineering relies on manual splicing and fixing, which makes the height adjustment process cumbersome, time-consuming, and difficult to achieve real-time and continuous adjustment. In addition, the monitoring frequency is low, making it difficult to capture sudden settlement. Utility Model Content

[0004] To address the problem of difficulty in real-time adjustment of the monitoring rod height in traditional settlement devices used in foundation engineering, this application provides a controllable settlement device for foundation engineering.

[0005] The controlled settlement device for foundation engineering provided in this application adopts the following technical solution:

[0006] A controllable settlement device for basic engineering includes a connecting rod and a fixing mechanism fixed to the top of the connecting rod. A measuring rod is fixed to the top of the fixing mechanism, and a sleeve rod is slidably fitted onto the outer side of the measuring rod. A screw is threaded inside the measuring rod, and a motor providing driving force to the screw is mounted at the top of the screw. A reference plate is fixedly fitted onto the outer side of the upper end of the sleeve rod. A distance sensor and a pressure sensor are fixed to the bottom two sides of the reference plate, respectively. The fixing mechanism includes a fixing cylinder and symmetrically rotatably arranged locking blocks inside the fixing cylinder. The bottom end of the fixing cylinder contacts the top of the connecting rod. Fixing shafts are symmetrically fixed to both sides of the inner wall of the fixing cylinder. The middle of the fixing shafts rotatably passes through the upper end of the locking blocks. An L-shaped block is locked to the lower end of one side of the locking block, and the bottom end of the L-shaped block is fixed to the top of the connecting rod. Pressure rods that movably abut against one side of the locking blocks are inserted into both sides of the outer wall of the fixing cylinder.

[0007] Preferably, a rotating block is fixed at the top end of the screw, a circular hole is opened at the top end of the sleeve, the middle part of the rotating block rotates through the circular hole, a transmission shaft is fixed at the top end of the rotating block, and the top end of the transmission shaft is fixed to the output end of the motor.

[0008] Preferably, a slider is fixedly provided on the outer circumference of the measuring rod, the length of the slider is the same as the length of the measuring rod, and a groove adapted to the shape of the slider is opened inside the sleeve rod, and the slider slides in the groove.

[0009] Preferably, the measuring rod has a threaded groove inside that matches the thread on the screw surface.

[0010] Preferably, a baffle is fixedly provided in the middle of the inner top surface of the fixed cylinder, and a spring is fixedly provided on the side of the locking block near the baffle. The two ends of the spring are respectively fixed to the locking block and the lower end of one side of the baffle.

[0011] Preferably, the outer wall of the fixed cylinder is provided with two circular holes on both sides, and the pressure rod passes through the two circular holes.

[0012] By adopting the above technical solution, the second circular hole provides a linear guide for the pressure rod, enabling the pressure rod to move smoothly in a predetermined direction when under force, pushing the locking block to rotate and release the lock.

[0013] Preferably, a second spring is fitted at one end of the pressure rod inside the fixed cylinder, and the two ends of the second spring are fixed to the inner wall of the pressure rod and the locking block, respectively.

[0014] Preferably, a base plate is fixed to the bottom end of the connecting rod.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] 1. The distance sensor monitors the change in the distance between the device and the foundation surface in real time. When the settlement exceeds the threshold, the motor is started to drive the transmission shaft to rotate, which drives the rotating block and screw to rotate synchronously. The screw generates a spiral motion in the thread groove of the measuring rod, which in turn causes the sleeve to perform axial linear extension and retraction under the guidance of the slider and the groove. This drives the reference plate fixed at the upper end of the sleeve and the entire upper structure to rise and fall synchronously, thereby realizing real-time monitoring and dynamic compensation of structural settlement and maintaining structural elevation stability.

[0017] 2. By inserting the lower end of the fixed cylinder into the top of the connecting rod, the L-shaped block presses against the wedge-shaped surface of the locking block and drives it to rotate around the fixed axis. Under the action of the spring, the barb at the lower end of the locking block automatically locks the L-shaped block, achieving quick locking. When disassembling, press the pressure rods on both sides to push the locking block to rotate and disengage from the L-shaped block, achieving quick separation and improving the efficiency and convenience of assembly and disassembly. Attached Figure Description

[0018] Figure 1 This is an isometric schematic diagram of this application;

[0019] Figure 2 This is a bottom-view axial view of the present application;

[0020] Figure 3 This is a partial structural cross-sectional view of this application;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 This is an exploded view of the measuring rod and sleeve structure of this application;

[0023] Figure 6 This is a bottom view of the sleeve structure of this application;

[0024] Figure 7 This is an exploded view of the fixed cylinder and connecting rod structure of this application;

[0025] Figure 8 This is an exploded view of the fixed mechanism structure of this application;

[0026] Figure 9 This is a schematic diagram of the fixed cylinder structure of this application.

[0027] Reference numerals: 1. Connecting rod; 2. Fixing mechanism; 3. Measuring rod; 4. Sleeve rod; 5. Screw; 6. Motor; 7. Rotating block; 8. Transmission shaft; 9. Mounting block; 10. Reference plate;

[0028] 11. Distance sensor; 12. Pressure sensor; 13. Base plate; 14. Slider; 15. Threaded groove; 16. Circular hole one; 17. Slide groove;

[0029] 201. Fixed cylinder; 202. Clamping block; 203. Fixed shaft; 204. Spring 1; 205. Pressure rod; 206. Spring 2; 207. L-shaped block; 208. Baffle; 209. Circular hole 2; 210. Circular groove. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 - Figure 9 This application will be described in further detail.

[0031] This application discloses a controllable settlement device for foundation engineering.

[0032] Reference Figure 1 - Figure 6A controllable settlement device for foundation engineering includes a connecting rod 1 and a fixing mechanism 2 fixed to the top of the connecting rod 1. A measuring rod 3 is fixed to the top of the fixing mechanism 2. A sleeve rod 4 is slidably sleeved on the outer side of the measuring rod 3. A slider 14 is fixed to the outer circumference of the measuring rod 3. A groove 17 is formed inside the sleeve rod 4. The shape of the groove 17 matches the shape of the slider 14. The sleeve rod 4 is slidably disposed on the outer side of the measuring rod 3 through the groove 17. Limiting bosses are respectively provided at both ends of the groove 17 to prevent the sleeve rod 4 from slipping off. A threaded groove 15 is formed inside the measuring rod 3. A screw rod 5 is threaded inside the threaded groove 15. A motor 6 is provided at the top of the screw rod 5 to provide driving force to the screw rod 5. A rotating block 7 is fixed at the top of the screw rod 5. The shape of the rotating block 7 is as follows: Figure 5 As shown, a circular hole is provided at the top of the sleeve rod 4, and the middle part of the rotating block 7 rotates through the circular hole; the cooperation between the slider 14 and the groove 17 restricts the rotation of the sleeve rod 4, so that it can only make linear extension and retraction movements along the axis of the measuring rod 3 under the drive of the screw 5; the threaded groove 15 cooperates with the screw 5, so that the screw 5 can move along the axis when rotating, thereby converting the rotational motion of the motor 6 into the linear lifting and lowering motion of the sleeve rod 4.

[0033] A drive shaft 8 is fixedly mounted on the top of the rotating block 7, and the top of the drive shaft 8 is fixed to the output end of the motor 6. A mounting block 9 is symmetrically fixed on the top of the sleeve rod 4, and the top of the mounting block 9 is fixed to the fixed end of the motor 6. The rotating block 7 and the drive shaft 8 transmit the rotational power of the motor 6 to the screw 5. At the same time, the rotating block 7 and the circular hole at the top of the sleeve rod 4 rotate together, so that the sleeve rod 4 only performs axial extension and retraction when the screw 5 rotates. A reference plate 10 is fixedly mounted on the outer side of the upper end of the sleeve rod 4. A circular hole 16 is opened in the middle of the reference plate 10. The upper end of the sleeve rod 4 is fixedly inserted through the circular hole 16. A distance sensor 11 and a pressure sensor 12 are fixedly mounted on both sides of the bottom end of the reference plate 10, respectively.

[0034] The distance sensor 11 is a laser rangefinder, and the pressure sensor 12 is a piezoresistive pressure sensor, used to monitor the distance and contact pressure between the reference plate 10 and the foundation surface in real time. When the sleeve rod 4 needs to extend or retract due to settlement compensation, the reference plate 10 moves accordingly. The distance sensor 11 can infer the moving distance of the sleeve rod 4 by detecting the change in distance. The bottom end of the connecting rod 1 is fixed with a base plate 13. The bottom surface of the base plate 13 is provided with anti-slip texture to enhance the friction with the foundation. A reflective target connected to the base plate 13 is set in the sensor's field of view. The distance sensor 11 monitors the displacement of the reference plate 10 relative to the stationary target in real time, thereby obtaining true absolute settlement data and eliminating measurement errors caused by surface soil disturbance. The base plate 13 serves as the bearing base of the entire device and is directly fixed to the foundation, providing a stable foundation support for the connecting rod 1 and all the monitoring and adjustment components above.

[0035] The relative movement range between the measuring rod 3 and the sleeve rod 4 is covered by a foldable telescopic protective cover. The protective cover is made of aging-resistant neoprene rubber, and its two ends are sealed and fixed to the measuring rod 3 and the sleeve rod 4 by stainless steel hose clamps, forming a dustproof and waterproof sealed cavity. The motor 6 is covered with an aluminum alloy heat dissipation shell, and the wiring port is sealed with a waterproof gland.

[0036] The device also includes a controller electrically connected to the distance sensor 11, the motor 6, and the pressure sensor 12.

[0037] This device is suitable for basic engineering scenarios, such as bridge piers and high-rise building foundations. Before use, the bottom plate 13 at the bottom of the connecting rod 1 is fixed to the foundation surface. The fixing cylinder 201 is firmly connected to the connecting rod 1 through the fixing mechanism 2, so that the measuring rod 3 is fixed to the top of the connecting rod 1. The sleeve rod 4 slides with the outer slider 14 of the measuring rod 3 through the sliding groove 17, and the reference plate 10 is fixed to the upper end of the sleeve rod 4. The motor 6 is fixed to the top of the sleeve rod 4 through the mounting block 9, so that the distance sensor 11 and the pressure sensor 12 are respectively installed on both sides of the bottom end of the reference plate 10.

[0038] In use, the motor 6 drives the transmission shaft 8 to rotate, causing the rotating block 7 to drive the screw 5 to rotate within the threaded groove 15 of the measuring rod 3. Since the screw 5 is rotatably connected to the sleeve 4 through the rotating block 7, the meshing of the screw 5 with the threaded groove 15 of the measuring rod 3 converts the rotational motion into linear motion, thereby driving the sleeve 4 to slide along the axial direction of the measuring rod 3 under the guidance of the sliding groove 17 and the slider 14. The controller periodically reads the data from the distance sensor 11 and the pressure sensor 12 to obtain the real-time settlement amount and monitor the contact pressure. It has preset settlement thresholds and normal pressure ranges. If the pressure is abnormal, an alarm is issued. If the pressure is normal and the settlement amount exceeds the preset threshold, the distance sensor 11 monitors the change in the distance between the reference plate 10 and the foundation surface in real time to obtain the moving distance of the sleeve 4. The pressure sensor 12 monitors the contact pressure and drives the motor 6 to adjust the rotation direction of the screw 5, causing the sleeve 4 and the reference plate 10 to rise or fall, thereby achieving dynamic compensation for the monitored elevation.

[0039] Reference Figure 7 - Figure 9 The fixing mechanism 2 includes a fixing cylinder 201 and a locking block 202 symmetrically rotatably arranged inside the fixing cylinder 201. The lower end of the locking block 202 is a wedge-shaped barb. The shape of the locking block 202 is as follows: Figure 8As shown, a fixed shaft 203 is rotatably provided through the upper end of the locking block 202. A circular groove 210 is provided at the upper end of the locking block 202. The middle part of the fixed shaft 203 rotatably passes through the circular groove 210. The two ends of the fixed shaft 203 are respectively fixed to the two sides of the inner wall of the fixed cylinder 201. A baffle 208 is fixed in the middle of the inner top surface of the fixed cylinder 201. A spring 204 is fixed on the side of the locking block 202 near the baffle 208. The two ends of the spring 204 are respectively fixed to the lower end of the side of the locking block 202 near the baffle 208 and the lower end of the side of the baffle 208.

[0040] An L-shaped block 207 is engaged at the lower end of one side of each of the two locking blocks 202. The L-shaped block 207 is L-shaped in general, and the length of its vertical section matches the depth of the barb of the locking block 202. The bottom end of the L-shaped block 207 is fixed to the top end of the connecting rod 1. The baffle 208 provides a fulcrum for the spring 204. The spring 204, through its elastic preload, always pulls the locking block 202 toward the baffle 208, thereby automatically locking the barb at the lower end of the locking block 202 with the L-shaped block 207. Pressure rods 205 are movably inserted into both sides of the outer wall of the fixed cylinder 201. The end of the pressure rod 205 located inside the fixed cylinder 201 is wedge-shaped. Furthermore, the wedge-shaped surface slides against the inclined surface of the locking block 202 facing the pressure rod 205. Circular holes 209 are provided on both sides of the outer wall of the fixed cylinder 201. The opposite ends of the two pressure rods 205 are respectively movably inserted into the two circular holes 209. A spring 206 is fixedly sleeved on the outer side of the end of the pressure rod 205 located inside the fixed cylinder 201. The two ends of the spring 206 are respectively fixed to the end of the pressure rod 205 near the locking block 202 and the middle of one side of the locking block 202. The spring 206 provides the reset power for the pressure rod 205, ensuring that the pressure rod 205 automatically returns to the initial position after being pressed to unlock.

[0041] In use, by moving the fixing cylinder 201 downward, the lower end of the fixing cylinder 201 is inserted into the outside of the locking block 202, and the vertical section of the L-shaped block 207 enters the wedge-shaped barb area of ​​the locking block 202. Then, the locking block 202 rotates around the fixing shaft 203 in the circular groove 210. Under the elastic force of the spring 204, the barb at the lower end of the locking block 202 tightly locks the L-shaped block 207, thus achieving a stable connection between the fixing cylinder 201 and the connecting rod 1.

[0042] By pressing the two pressure rods 205, the wedge-shaped ends of the pressure rods 205 abut against the side of the locking block 202 facing the pressure rods 205, thereby pushing the locking block 202 to rotate around the fixed shaft 203 and disengage from the barb area of ​​the L-shaped block 207. After being released, the pressure rods 205 are reset under the elastic force of the second spring 206, completing the separation of the fixed cylinder 201 from the connecting rod 1.

[0043] The implementation principle of a controllable settlement device for foundation engineering in this application embodiment is as follows: The device monitors the change in distance between the distance sensor 11 and the foundation in real time to calculate the movement distance of the sleeve rod 4, and the pressure sensor 12 monitors the contact pressure. The controller periodically reads the data of the distance sensor 11 and the pressure sensor 12, calculates the settlement amount in real time and judges the contact status of the device. When the settlement amount exceeds the preset threshold and the contact pressure is normal, the controller starts the motor 6 and drives the screw 5 to rotate, so that the sleeve rod 4 slides axially under the guidance of the slide groove 17 and the slider 14, so that the sleeve rod 4 extends or shortens, driving the reference plate 10 to rise or fall, realizing dynamic compensation for the monitored elevation, fixing the bottom plate 13 at the bottom of the connecting rod 1 to the foundation, so that the wedge-shaped barb of the locking block 202 inside the fixing cylinder 201 engages with the L-shaped block 207 to realize a stable connection between the fixing cylinder 201 and the connecting rod 1.

[0044] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A controllable settlement device for foundation engineering, characterized in that: The device includes a connecting rod (1) and a fixing mechanism (2) fixed at the top of the connecting rod (1). A measuring rod (3) is fixed at the top of the fixing mechanism (2). A sleeve rod (4) is slidably sleeved on the outside of the measuring rod (3). A screw rod (5) is provided in the internal thread of the measuring rod (3). A motor (6) is provided at the top of the screw rod (5) to provide driving force to the screw rod (5). A reference plate (10) is fixedly sleeved on the upper outside of the sleeve rod (4). A distance sensor (11) and a pressure sensor (12) are fixed on both sides of the bottom end of the reference plate (10). The fixing mechanism (2) includes a fixing cylinder (201) and a locking block (202) symmetrically rotated inside the fixing cylinder (201). The bottom end of the fixing cylinder (201) contacts the top end of the connecting rod (1). Fixing shafts (203) are symmetrically fixed on both sides of the inner wall of the fixing cylinder (201). The middle part of the fixing shaft (203) rotates through the upper end of the locking block (202). An L-shaped block (207) is locked on the lower end of one side of the locking block (202). The bottom end of the L-shaped block (207) is fixed to the top end of the connecting rod (1). Pressure rods (205) that abut against one side of the locking block (202) are movably inserted on both sides of the outer wall of the fixing cylinder (201).

2. The controllable settlement device for foundation engineering according to claim 1, characterized in that: The top end of the screw (5) is fixed with a rotating block (7), the top end of the sleeve (4) is provided with a round hole, the middle part of the rotating block (7) rotates through the round hole, the top end of the rotating block (7) is fixed with a transmission shaft (8), and the top end of the transmission shaft (8) is fixed to the output end of the motor (6).

3. The controllable settlement device for foundation engineering according to claim 1, characterized in that: A slider (14) is fixedly provided on the outer circumference of the measuring rod (3). The length of the slider (14) is the same as the length of the measuring rod (3). A groove (17) adapted to the shape of the slider (14) is opened inside the sleeve rod (4). The slider (14) slides in the groove (17).

4. The controllable settlement device for foundation engineering according to claim 1, characterized in that: The measuring rod (3) has a threaded groove (15) inside that matches the thread on the surface of the screw (5).

5. The controllable settlement device for foundation engineering according to claim 1, characterized in that: A baffle (208) is fixedly provided in the middle of the inner top surface of the fixed cylinder (201). A spring (204) is fixedly provided on the side of the block (202) near the baffle (208). The two ends of the spring (204) are respectively fixed to the lower end of one side of the block (202) and the baffle (208).

6. The controllable settlement device for foundation engineering according to claim 1, characterized in that: The outer wall of the fixed cylinder (201) is provided with two circular holes (209) on both sides, and the pressure rod (205) passes through the two circular holes (209).

7. A controllable settlement device for foundation engineering according to claim 1, characterized in that: The pressure rod (205) is fitted with a spring (206) at one end inside the fixed cylinder (201). The two ends of the spring (206) are fixed to the inner wall of the pressure rod (205) and the locking block (202), respectively.

8. The controllable settlement device for foundation engineering according to claim 1, characterized in that: The bottom end of the connecting rod (1) is fixed with a base plate (13).

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