A deformation monitoring device for a foundation pit retaining structure

Abstract

The utility model belongs to the field of foundation pit support technology, concretely is a kind of foundation pit support structure deformation monitoring devices, including base, the end surface of base is provided with internal sleeve, the outside of internal sleeve is slidably provided with external sleeve, and the top one end of external sleeve is provided with mounting base, and the top end surface of mounting base is rotatably provided with mounting block, and the inside of mounting block is provided with infrared detector for detection, and the end surface of mounting block is provided with alarm device, and the bottom end surface of base is provided with plug-in rod, and the outside of plug-in rod is slidably provided with movable plate, the utility model is provided with connecting shaft and mounting block and other devices, can drive mounting block to rotate, to change the monitoring angle of infrared detector, solve the problem that the angle of monitoring device cannot be adjusted according to the scene of existing device, by setting fixed shell and plug-in rod and other structures, to facilitate the movement of device, solve the problem that the existing device is inconvenient to move and lacks stability.

Description

Technical Field

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

[0002] An excavation pit is a pit dug at the foundation design location according to the base elevation and foundation plane dimensions. After the excavation, a corresponding excavation pit retaining structure is usually set up around the excavation pit. The excavation pit retaining structure is a series of support measures taken to ensure construction safety. It is a structure used to surround the excavation pit and usually consists of an underground support structure and an above-ground support structure. However, excavation pits are extremely prone to collapse. In order to prevent the excavation pit from collapsing and causing deformation of the retaining wall, which could result in personnel injury, it is necessary to monitor the excavation pit retaining structure through corresponding deformation monitoring devices to ensure construction safety.

[0003] Patent CN221798531U discloses a deformation monitoring device for foundation pit retaining structures, including a base, an infrared transmitter, and an infrared receiver. A support rod is mounted above the base, and a mounting plate is mounted at the top of the support rod. A control box is mounted on one side of the mounting plate, and a mounting seat is mounted above the mounting plate. The infrared transmitter is mounted on one side of the mounting seat, and the infrared receiver is mounted on the side of the foundation pit retaining structure closest to the infrared transmitter. An adjustment assembly is provided between the mounting plate and the mounting seat. This foundation pit retaining structure deformation monitoring device, through the cooperation of a motor and a threaded rod, can adjust the infrared transmitter to correspond with infrared receivers mounted at different positions on the foundation pit retaining structure for monitoring. This gives the device an adjustable structure. The support seat provides auxiliary support to both sides of the support rod, making the installation of the foundation pit retaining structure deformation monitoring device more stable.

[0004] In existing technologies, the monitoring device can be adjusted by setting up a motor and threaded rod, but the following problems still exist in the overall use: First, in existing technologies, the height of the detection device is adjusted by a lifting device, but in actual detection, the angle and position of the monitoring device need to be changed many times. However, the existing device cannot flexibly adjust the angle of the monitoring device according to the actual situation on site, which makes it inconvenient to use. Second, the ground of the construction site cannot be guaranteed to be effectively flat, and there are not many hard fixed ground surfaces. The existing device is inconvenient to move and lacks stability. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this utility model provides a deformation monitoring device for foundation pit retaining structures. By setting up a connecting shaft and mounting block, the mounting block can be rotated, thereby changing the monitoring angle of the infrared detector. This solves the problem that existing devices cannot adjust the angle of the monitoring device according to the site conditions. By setting up a fixed shell and insert rod, the state of the device can be adjusted according to needs, so as to facilitate the movement of the device. This solves the problems of inconvenient movement and insufficient stability of existing devices.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a deformation monitoring device for foundation pit retaining structure, comprising a base, an inner sleeve provided on the end face of the base, an outer sleeve slidably provided on the outside of the inner sleeve, a mounting base provided on the top end of the outer sleeve, a mounting block rotatably provided on the top end face of the mounting base, an infrared detector for detection provided inside the mounting block, an alarm device provided on the end face of the mounting block, a plurality of insert rods provided on the bottom end face of the base, movable plates slidably provided on the outside of the plurality of insert rods, and casters provided on the bottom end face of the plurality of movable plates.

[0007] Preferably, a second threaded sleeve is slidably provided on the outer surface of the mounting base, a drive plate is provided on the top end face of the second threaded sleeve, a drive groove is provided on the outer surface of the drive plate, a first slide rod is slidably provided inside the drive groove, a rotating rod is provided at one end of the first slide rod, a connecting shaft is provided inside the rotating rod, and the connecting shaft is rotatably connected to the mounting base.

[0008] Preferably, a second threaded rod is rotatably provided inside the second threaded sleeve on the outer surface of the mounting base, the second threaded sleeve and the second threaded rod are threadedly connected, and a limit rail is provided on one side of the second threaded rod on the outer surface of the mounting base, the limit rail and the second threaded sleeve are slidably connected.

[0009] Preferably, the inner sleeve is provided with a first threaded rod for internal rotation, and the outer surface of the first threaded rod is provided with a first threaded sleeve for threaded transmission. The outer surface of the inner sleeve is provided with a limiting groove, and the first threaded sleeve extends outward along the limiting groove. The extended end of the first threaded sleeve is fixedly connected to the outer sleeve.

[0010] Preferably, a plurality of fixed shells are provided on the end face of the base, and a second slide rod is slidably arranged inside each of the plurality of fixed shells. A limit seat is provided outside the second slide rod and inside the fixed shell. The plurality of second slide rods extend to the bottom of the base, and the extended ends of the plurality of second slide rods are fixedly connected to the movable plate.

[0011] Preferably, each of the plurality of fixed shells has a turntable rotatably disposed inside, and each of the plurality of turntables has a connecting rod rotatably disposed on its outer surface, with one end of each of the plurality of connecting rods rotatably connected to the second sliding rod.

[0012] Preferably, two dual-axis motors are provided on the end face of the base, and the output ends of the two dual-axis motors are respectively connected to the turntable drive.

[0013] Preferably, a drive motor is provided at one end of the first threaded rod on the bottom end face of the base, the output end of the drive motor is connected to the first threaded rod in a transmission manner, and a bearing is provided at one end of the first threaded rod, the outer surface of the bearing being fixedly connected to the inner wall of the inner sleeve.

[0014] In summary, compared with existing technologies, the beneficial effects of this solution are as follows: This utility model, by setting up a second threaded sleeve, a rotating rod, a connecting shaft, and a mounting block, can drive the mounting block to rotate by rotating the second threaded rod, thereby changing the monitoring angle of the infrared detector, thus improving the flexibility of the device. Furthermore, by setting up the mounting block, the infrared detector can be protected from external impacts, thereby increasing the service life of the infrared detector. By setting up the first threaded rod and the first threaded sleeve, the height of the mounting block can be adjusted, thereby improving the practicality of the device. This invention, by setting up a fixed shell, a turntable, a plug rod, and casters, allows the device to be adjusted according to needs. Lowering the movable plate allows the casters to contact the ground, facilitating the movement of the device. Raising the casters allows the plug rod to contact the ground and insert into the soil, thereby improving the overall stability of the device. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a front view of the present invention; Figure 3 for Figure 2 A three-dimensional sectional view at point AA; Figure 4 for Figure 3 A magnified view of a section at point B in the middle; Figure 5 for Figure 3 A magnified view of a section at point C; In the diagram: base 10, inner sleeve 11, outer sleeve 12, first threaded rod 13, first threaded sliding sleeve 14, drive motor 15, mounting base 16, limit slide rail 17, second threaded rod 18, second threaded sliding sleeve 19, drive plate 20, drive groove 21, first slide rod 22, rotating rod 23, connecting shaft 24, mounting block 25, infrared detector 26, alarm device 27, fixed shell 28, turntable 29, connecting rod 30, second slide rod 31, limit seat 32, movable plate 33, universal wheel 34, insertion rod 35, dual-axis motor 36, damper 37, handle 38, limit groove 39. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] refer to Figure 1 , Figure 2 and Figure 3 A deformation monitoring device for foundation pit retaining structure includes a base 10, an inner sleeve 11 is provided on the end face of the base 10, an outer sleeve 12 is slidably provided on the outside of the inner sleeve 11, a first threaded rod 13 is rotatably provided inside the inner sleeve 11, a first threaded sliding sleeve 14 is threadedly driven on the outer circular surface of the first threaded rod 13, a limiting groove 39 is provided on the outer surface of the inner sleeve 11, the first threaded sliding sleeve 14 extends outward along the limiting groove 39, and the extended end of the first threaded sliding sleeve 14 is fixedly connected to the outer sleeve 12. A drive motor 15 is provided at one end of the first threaded rod 13 on the bottom end face of the base 10. It should be noted that in actual operation, a waterproof shell will be provided outside the drive motor 15 to avoid the influence of water vapor on the ground. The output end of the drive motor 15 is connected to the first threaded rod 13. One end of the first threaded rod 13 is provided with a bearing. The outer surface of the bearing is fixedly connected to the inner wall of the inner sleeve 11. The top end of the outer sleeve 12 is provided with a mounting base 16. The top end face of the mounting base 16 is rotatably provided with a mounting block 25. The inside of the mounting block 25 is provided with an infrared detector 26 for detection. When the height of the infrared detector 26 needs to be adjusted, the drive motor 15 is started. The output end of the drive motor 15 drives the first threaded rod 13 to rotate. After the first threaded rod 13 rotates, it drives the outer first threaded sliding sleeve 14 to move, so that the first threaded sliding sleeve 14 drives the outer sleeve 12 to slide upward. After the outer sleeve 12 slides, it drives the mounting block 25 and the infrared detector 26 on the top end face to move, thereby adjusting the height position of the infrared detector 26 so that the infrared detector 26 can monitor the inner wall of the pit. An alarm device 27 is provided on the end face of the mounting block 25. When the pit deforms, the infrared detector 26 sends a signal to the alarm device 27, causing the alarm device 27 to flash and start the alarm, so as to facilitate timely maintenance and avoidance.

[0018] Further reference Figure 2 , Figure 3 and Figure 5 A second threaded sleeve 19 is slidably disposed on the outer surface of the mounting base 16. A drive plate 20 is disposed on the top end face of the second threaded sleeve 19. A drive groove 21 is disposed on the outer surface of the drive plate 20. A first slide rod 22 is slidably disposed inside the drive groove 21. A rotating rod 23 is disposed at one end of the first slide rod 22. A connecting shaft 24 is disposed inside the rotating rod 23. The connecting shaft 24 is rotatably connected to the mounting base 16. A second threaded rod 18 is rotatably disposed inside the second threaded sleeve 19 on the outer surface of the mounting base 16. The second threaded sleeve 19 and the second threaded rod 18 are threadedly connected. A limit slide rail 17 is disposed on one side of the second threaded rod 18 on the outer surface of the mounting base 16. A handle 38 is disposed at one end of the second threaded rod 18 below the mounting block 25 for limiting. The slide rail 17 is slidably connected to the second threaded sleeve 19. When adjusting the angle of the infrared detector 26, the second threaded rod 18 can be rotated by rotating the handle 38. After the second threaded rod 18 rotates, it drives the second threaded sleeve 19 on the outer surface to move. The second threaded sleeve 19 drives the top drive plate 20 to move, and the drive plate 20 drives the first slide rod 22 to move through the drive groove 21. When the first slide rod 22 moves, it drives one end of the rotating rod 23 to rotate. After the rotating rod 23 rotates, it drives the connecting shaft 24 to rotate. The connecting shaft 24 drives the mounting block 25 to rotate, thereby changing the angle of the infrared detector 26. The bottom end face of the mounting block 25 is provided with a damper 37. By providing the damper 37, the mounting block 25 can be made more stable when rotating.

[0019] Further reference Figure 2 , Figure 3 and Figure 4The base 10 has multiple insertion rods 35 on its bottom end face. Each insertion rod 35 has a movable plate 33 slidably mounted on its exterior. Each movable plate 33 has a caster wheel 34 on its bottom end face. The base 10 has multiple fixed shells 28 on its end face. Each fixed shell 28 has a second sliding rod 31 slidably mounted inside its interior. Each second sliding rod 31 has a limiting seat 32 both outside and inside the fixed shell 28. Each second sliding rod 31 extends towards the bottom of the base 10, and its extended end is fixedly connected to the movable plate 33. Each fixed shell 28 has a turntable 29 rotatably mounted inside its interior. Each turntable 29 has a connecting rod 30 rotatably mounted on its outer surface. One end of each connecting rod 30 is rotatably connected to a second sliding rod 31. The base 10 has two dual-axis motors 36 on its end face. The output ends are respectively connected to the turntable 29 for transmission. When moving using the casters 34, the dual-axis motors 36 are started at the same time, so that the two output ends of the two dual-axis motors 36 drive the turntable 29 to rotate simultaneously. When the turntable 29 rotates, it drives the connecting rod 30 on the outer surface to rotate. After the connecting rod 30 rotates, it drives the second slide rod 31 at one end to move. Because the second slide rod 31 is restricted by the limit seat 32, the second slide rod 31 can only slide downward and push the bottom movable plate 33 to move. The movable plate 33 drives the bottom casters 34 to move, so that the casters 34 contact the ground. At the same time, through the downward reverse force of the second slide rod 31, the base 10 is pushed upward, so that the insertion rod 35 is lifted off the ground. At this time, the overall position of the device can be adjusted by pushing the base 10 or the outer sleeve 12.

[0020] The deformation monitoring device for foundation pit retaining structure of this utility model uses common mechanical methods for installation and connection. The control of the driving component by the similar detection components and the related detection methods and specific circuit relationships of each detection component can all adopt conventional electrical control technology. As long as the corresponding motion relationship can be completed and its beneficial effect can be achieved in this solution, it can be implemented. The drive motor 15, infrared detector 26, alarm device 27 and other components in the deformation monitoring device for foundation pit retaining structure of this utility model are all purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0021] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0022] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0023] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A deformation monitoring device for foundation pit retaining structure, comprising a base (10), characterized in that, An inner sleeve (11) is provided on the end face of the base (10), and an outer sleeve (12) is slidably provided on the outside of the inner sleeve (11). A mounting base (16) is provided on the top end of the outer sleeve (12), and a mounting block (25) is rotatably provided on the top end face of the mounting base (16). An infrared detector (26) for detection is provided inside the mounting block (25), and an alarm device (27) is provided on the end face of the mounting block (25). A plurality of insert rods (35) are provided on the bottom end face of the base (10), and movable plates (33) are slidably provided on the outside of the plurality of insert rods (35). A universal wheel (34) is provided on the bottom end face of the plurality of movable plates (33).

2. The deformation monitoring device for a foundation pit retaining structure according to claim 1, characterized in that, The outer surface of the mounting base (16) is slidably provided with a second threaded sleeve (19), and the top end face of the second threaded sleeve (19) is provided with a drive plate (20). The outer surface of the drive plate (20) is provided with a drive groove (21), and the inside of the drive groove (21) is slidably provided with a first slide rod (22). One end of the first slide rod (22) is provided with a rotating rod (23), and the inside of the rotating rod (23) is provided with a connecting shaft (24). The connecting shaft (24) is rotatably connected to the mounting base (16).

3. The deformation monitoring device for a foundation pit retaining structure according to claim 2, characterized in that, The second threaded sleeve (19) is rotatably provided with a second threaded rod (18) on the outer surface of the mounting base (16). The second threaded sleeve (19) and the second threaded rod (18) are threadedly connected. A limit rail (17) is provided on one side of the second threaded rod (18) on the outer surface of the mounting base (16). The limit rail (17) is slidably connected with the second threaded sleeve (19).

4. The deformation monitoring device for foundation pit retaining structure according to claim 1, characterized in that, The inner sleeve (11) is provided with a first threaded rod (13) for rotation. The outer circular surface of the first threaded rod (13) is provided with a first threaded sleeve (14). The outer surface of the inner sleeve (11) is provided with a limiting groove (39). The first threaded sleeve (14) extends outward along the limiting groove (39). The extended end of the first threaded sleeve (14) is fixedly connected to the outer sleeve (12).

5. The deformation monitoring device for foundation pit retaining structure according to claim 1, characterized in that, The base (10) has multiple fixed shells (28) on its end face. Each of the multiple fixed shells (28) has a second slide rod (31) slidably disposed inside. Each of the second slide rods (31) has a limiting seat (32) on its exterior and inside the fixed shell (28). Each of the multiple second slide rods (31) extends to the bottom of the base (10), and the extended ends of the multiple second slide rods (31) are fixedly connected to the movable plate (33).

6. The deformation monitoring device for foundation pit retaining structure according to claim 5, characterized in that, Each of the multiple fixed shells (28) has a turntable (29) rotatably mounted inside, and each of the multiple turntables (29) has a connecting rod (30) rotatably mounted on its outer surface. One end of each of the multiple connecting rods (30) is rotatably connected to the second slide rod (31).

7. The deformation monitoring device for foundation pit retaining structure according to claim 1, characterized in that, Two dual-axis motors (36) are provided on the end face of the base (10), and the output ends of the two dual-axis motors (36) are respectively connected to the turntable (29) for transmission.

8. The deformation monitoring device for a foundation pit retaining structure according to claim 4, characterized in that, A drive motor (15) is provided at one end of the first threaded rod (13) on the bottom end face of the base (10). The output end of the drive motor (15) is connected to the first threaded rod (13) in a transmission connection. A bearing is provided at one end of the first threaded rod (13). The outer surface of the bearing is fixedly connected to the inner wall of the inner sleeve (11).

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