Building foundation pit supporting structure detection device
By designing an automated testing device for building foundation pit support structures, which utilizes a mobile frame, cylinders, and motors working in tandem, automatic hammering and rapid movement are achieved. This solves the problem of time-consuming and labor-intensive manual hammering, improves testing efficiency, and simplifies the operation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 湖南博联检测集团有限责任公司
- Filing Date
- 2025-05-22
- Publication Date
- 2026-04-21
AI Technical Summary
Existing testing equipment for building foundation pit support structures requires manual hammering, which is time-consuming and labor-intensive. Furthermore, the installation and removal of acceleration sensors are cumbersome, resulting in low testing efficiency.
A detection device was designed, comprising a moving frame, moving wheels, cylinders, motors, slide rails, lead screws, accelerometers, and a striking assembly, to achieve automatic striking and rapid movement. Through the coordinated action of the cylinders and motors, the position of the accelerometer is automatically adjusted and striking is detected.
It enables automatic impact testing and rapid movement of the support structure, improving testing efficiency, simplifying the operation process, and avoiding the influence of dust and reflection on the testing instrument.
Smart Images

Figure CN224148789U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering, and in particular to a detection device for the support structure of building foundation pits. Background Technology
[0002] In the field of construction engineering, the foundation pit support structure is a key facility to ensure the safety of foundation pit construction and the stability of the surrounding environment. Its quality and stability are directly related to the smooth progress of the entire project. With the acceleration of urbanization and the continuous development and utilization of underground space, various large and deep foundation pit projects are increasing, and the reliability requirements for foundation pit support structures are becoming more and more stringent.
[0003] Existing methods for inspecting the support structure of building foundation pits typically require carrying the inspection equipment to the side of the support structure, fixing the accelerometer on the equipment to the surface of the support structure, and then manually holding a hammer and repeatedly striking the support structure for inspection. However, manually holding the hammer and striking is time-consuming and laborious, and when it is necessary to inspect the next area, the accelerometer must be removed from the support structure and moved to the next area for installation. This process is cumbersome and inefficient.
[0004] Therefore, it is necessary to design a building foundation pit support structure inspection device that can automatically perform hammering inspection on the support structure and can be easily and quickly moved to the next area for inspection, thereby improving work efficiency. Utility Model Content
[0005] To overcome the shortcomings of existing methods for inspecting building foundation pit support structures, which involve time-consuming and laborious manual hammering and require removing accelerometers from the support structure before moving to the next area for inspection, resulting in cumbersome and inefficient operations, this invention provides a building foundation pit support structure inspection device that can automatically perform hammering inspections on the support structure and can be easily and quickly moved to the next area for inspection, thereby improving work efficiency.
[0006] The technical solution is as follows: A detection device for the support structure of a building foundation pit includes a movable frame, movable wheels, a first rodless cylinder, a second rodless cylinder, a slide rail, a first motor, a bidirectional lead screw, sliding blocks, an acceleration sensor, and a striking component. The movable frame has two movable wheels rotatably connected to its front and rear ends. The first rodless cylinder is connected to the front of the movable frame. The second rodless cylinder is connected to the slider of the first rodless cylinder. Both the first and second rodless cylinders are electrically connected to a processor via a control module. The slide rail is connected to the slider of the second rodless cylinder. The first motor is connected to the left side of the slide rail. The first motor and the processor are electrically connected via a control module. A bidirectional lead screw is connected to the output shaft of the first motor. The bidirectional lead screw is rotatably connected to the slide rail. Sliding blocks are threadedly connected to both ends of the bidirectional lead screw. The sliding blocks are slidably connected to the slide rail. An acceleration sensor is connected to the lower side of each sliding block. A striking component capable of automatically striking and detecting the support structure is provided in the middle of the slide rail.
[0007] Optionally, a handle is provided on the rear side of the mobile frame.
[0008] Optionally, the wheels are all equipped with anti-slip textures.
[0009] Optionally, the striking assembly includes a second motor, a missing gear, a striking head, a telescopic spring, and a rack. The second motor is connected to the upper part of the slide rail. The second motor and the processor are electrically connected through a control module. The missing gear is connected to the output shaft of the second motor. The striking head is slidably connected to the slide rail. The telescopic spring is connected between the striking head and the slide rail. A rack is connected to the left side of the striking head. The rack meshes with the missing gear.
[0010] Optionally, it also includes a placement frame, a support rod, and a dust cover. The placement frame is rotatably connected to the upper rear of the mobile frame, and the support rod is rotatably connected to the bottom of the placement frame. The support rod is snapped into the mobile frame, and the dust cover is rotatably connected to the upper front of the placement frame.
[0011] Optionally, it also includes a sun visor, with the sun visor rotatably connected to the upper front of the dust cover.
[0012] The beneficial effects are as follows: 1. By starting the second motor, the missing gear is driven to rotate. The missing gear meshes with the rack and drives the striking head to move upward. When the missing gear and the rack no longer mesh, the striking head moves downward. The device is moved with the assistance of the moving wheel, which achieves the effect of automatically striking and detecting the support structure and can be easily and quickly moved to the next area for detection, thus improving work efficiency.
[0013] 2. This utility model achieves the effect of dust and sun protection for the testing instrument by rotating the placement frame upward and then rotating the support rod to engage with the moving frame, providing support through the support rod, rotating and closing the dust cover, and then rotating and closing the sunshade. The dust cover provides dust protection and the sunshade provides sun protection. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a three-dimensional structural diagram of the movable frame and the first rodless cylinder of this utility model.
[0016] Figure 3 This is a cross-sectional three-dimensional structural diagram of the first motor and the hammer and other components of this utility model.
[0017] Figure 4 This is a three-dimensional structural diagram of the placement frame and support rod of this utility model.
[0018] Figure 5 This is a three-dimensional structural diagram of the dust cover and sunshade components of this utility model.
[0019] Explanation of reference numerals in the attached drawings: 1_moving frame, 2_moving wheel, 3_first rodless cylinder, 4_second rodless cylinder, 5_slide rail, 6_first motor, 7_double-acting lead screw, 8_sliding block, 9_accelerometer sensor, 10_second motor, 11_missing gear, 12_knob, 13_telescopic spring, 14_rack, 15_placement frame, 16_support rod, 17_dust cover, 18_sunshade. Detailed Implementation
[0020] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.
[0021] A detection device for building foundation pit support structure, such as Figures 1-3As shown, the device includes a movable frame 1, movable wheels 2, a first rodless cylinder 3, a second rodless cylinder 4, a slide rail 5, a first motor 6, a bidirectional lead screw 7, a sliding block 8, an acceleration sensor 9, and a striking assembly. The movable frame 1 has a handle on its rear side for easy gripping. Both the front and rear parts of the movable frame 1 are rotatably connected to two movable wheels 2, each with anti-slip texture. The front part of the movable frame 1 is connected to the first rodless cylinder 3, and the slider of the first rodless cylinder 3 is connected to the second rodless cylinder 4. The first rodless cylinder 3 and the second rodless cylinder... The processor and the second rodless cylinder 4 are electrically connected via a control module. A slide rail 5 is connected to the slider of the second rodless cylinder 4. A first motor 6 is connected to the left side of the slide rail 5. The first motor 6 and the processor are electrically connected via a control module. A bidirectional lead screw 7 is connected to the output shaft of the first motor 6. The bidirectional lead screw 7 is rotatably connected to the slide rail 5. Sliding blocks 8 are threadedly connected to both the left and right sides of the bidirectional lead screw 7. The sliding blocks 8 are slidably connected to the slide rail 5. An acceleration sensor 9 is connected to the lower side of each sliding block 8. A striking component is provided in the middle of the slide rail 5.
[0022] like Figure 1 and Figure 3 As shown, the striking assembly includes a second motor 10, a missing gear 11, a striking head 12, a telescopic spring 13, and a rack 14. The second motor 10 is connected to the upper part of the slide rail 5. The second motor 10 and the processor are electrically connected through a control module. The missing gear 11 is connected to the output shaft of the second motor 10. The striking head 12 is slidably connected to the slide rail 5. The telescopic spring 13 is connected between the striking head 12 and the slide rail 5. The rack 14 is connected to the left side of the striking head 12. The rack 14 meshes with the missing gear 11.
[0023] like Figure 1 , Figure 4 and Figure 5 As shown, it also includes a placement frame 15, a support rod 16, a dust cover 17, and a sunshade 18. The placement frame 15 is rotatably connected to the upper rear of the mobile frame 1. The support rod 16 is rotatably connected to the bottom of the placement frame 15. The support rod 16 is snapped into the mobile frame 1. The dust cover 17 is rotatably connected to the upper front of the placement frame 15. The sunshade 18 is rotatably connected to the upper front of the dust cover 17.
[0024] When using this device, first place the testing instrument in the placement frame 15, then push the moving frame 1 to the testing area of the foundation pit support structure. Use the moving wheels 2 for assisted movement, positioning the support pile below the striking head 12. Then, the processor, through the control module, activates the first rodless cylinder 3, driving the second rodless cylinder 4 to move left and right, adjusting the position of the striking head 12. Next, the control module activates the first motor 6, driving the bidirectional lead screw 7 to rotate, causing the sliding block 8 to move under the action of the thread, bringing the acceleration sensors 9 closer or further apart, adjusting the position of the acceleration sensors 9. Then, the control module activates the second rodless cylinder 4, driving the slide rail 5 downwards, so that the acceleration sensors 9 contact the support pile. Next, the second motor 10 is activated, driving the missing gear 11 to rotate. The missing gear 11 meshes with the rack 14, moving the striking head 12 upwards. The telescopic spring 13 is compressed and contracted. When the missing gear 11 and rack 14... When the engagement is disengaged, the telescopic spring 13 returns to its original position, causing the striking head 12 to move downwards. The striking head 12 continuously strikes the support piles, which is detected by the acceleration sensor 9. Data is collected by the detection instrument in the placement frame 15, and the integrity of the support piles is checked based on the collected data. When it is necessary to test the next support pile, the device can be pushed and moved with the assistance of the moving wheels 2. This allows for automatic striking and testing of the support structure and facilitates quick movement to the next area for testing, improving work efficiency. During the testing process, the placement frame 15 can be rotated upwards, and then the support rod 16 can be rotated to engage with the moving frame 1. The support rod 16 provides support, and then the dust cover 17 and the sunshade 18 can be rotated to close. The dust cover 17 provides dust protection, and the sunshade 18 provides sun protection, thus protecting the detection instrument from excessive dust or glare at the display position.
[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A building foundation pit support structure detection device characterized by, The system includes a moving frame (1), moving wheels (2), a first rodless cylinder (3), a second rodless cylinder (4), a slide rail (5), a first motor (6), a two-way lead screw (7), a sliding block (8), an acceleration sensor (9), and a striking assembly. The moving frame (1) has two rotating moving wheels (2) connected to its front and rear ends. The first rodless cylinder (3) is connected to the front of the moving frame (1). The second rodless cylinder (4) is connected to the slider of the first rodless cylinder (3). Both the first rodless cylinder (3) and the second rodless cylinder (4) are electrically connected to the processor via a control module. The slider of the cylinder (4) is connected to the slide rail (5). The left side of the slide rail (5) is connected to the first motor (6). The first motor (6) and the processor are electrically connected through the control module. The output shaft of the first motor (6) is connected to the double-acting screw (7). The double-acting screw (7) is rotatably connected to the slide rail (5). The left and right sides of the double-acting screw (7) are threadedly connected to the sliding blocks (8). The sliding blocks (8) are slidably connected to the slide rail (5). The lower side of the sliding blocks (8) is connected to the acceleration sensor (9). The middle of the slide rail (5) is provided with a striking component that can automatically detect the striking of the support structure.
2. The building foundation pit support structure detection device according to claim 1, characterized in that, The mobile frame (1) has a handle on the rear side.
3. The building foundation pit support structure detection device according to claim 1, characterized in that, All the moving wheels (2) have anti-slip textures.
4. The building foundation pit support structure detection device according to claim 1, characterized in that, The striking assembly includes a second motor (10), a missing gear (11), a striking head (12), a telescopic spring (13), and a rack (14). The second motor (10) is connected to the upper part of the slide rail (5). The second motor (10) and the processor are electrically connected through a control module. The missing gear (11) is connected to the output shaft of the second motor (10). The striking head (12) is slidably connected to the slide rail (5). The telescopic spring (13) is connected between the striking head (12) and the slide rail (5). The rack (14) is connected to the left side of the striking head (12). The rack (14) meshes with the missing gear (11).
5. The building foundation pit support structure detection device according to claim 1, characterized in that, It also includes a placement frame (15), a support rod (16) and a dust cover (17). The placement frame (15) is rotatably connected to the upper rear of the mobile frame (1). The support rod (16) is rotatably connected to the bottom of the placement frame (15). The support rod (16) is snapped into the mobile frame (1). The dust cover (17) is rotatably connected to the upper front of the placement frame (15).
6. The building foundation pit support structure detection device according to claim 5, characterized in that, It also includes a sunshade (18), and the upper front part of the dust cover (17) is rotatably connected to the sunshade (18).