A ground detection device
Patent Information
- Application Number
- CN202522506224.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-11-26
Smart Images

Figure CN224902126U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of foundation testing equipment, specifically a foundation testing device. Background Technology
[0002] Foundation testing is a crucial step in the preliminary investigation and subsequent acceptance of building projects. Its results directly determine the formulation of foundation treatment plans and the safety and stability of building structures. Foundation testing devices are key equipment for ensuring the stability of building foundations and are mainly used to detect foundation data.
[0003] However, existing technologies still have many shortcomings in practical applications for some similar structures. For example, if the detection depth is shallower than the design requirements, the true condition of the deep soil layers will be missed. Shallow depth detection cannot detect these issues, and it is easy to misjudge the overall quality of the foundation, which may lead to potential problems such as settlement and tilting of the building later. At the same time, if the inner wall diameter is not detected before foundation construction is carried out, work must be stopped and rectified after the size mismatch is discovered, which will lead to interruption of the construction process and extension of the construction period. Especially for deep foundation pit projects, secondary excavation requires rebuilding the support structure, which further increases the construction difficulty and cost.
[0004] To address the aforementioned problems, the inventors have proposed a foundation testing device. Utility Model Content
[0005] To address the problems of not being able to adjust to a suitable depth for testing and the inconvenience of testing the inner diameter of the foundation depth, the purpose of this utility model is to provide a foundation testing device.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a foundation testing device, including a fixed plate, a lifting assembly provided on the bottom surface of the fixed plate, the lifting assembly including a fixed box, a worm gear rotatably connected to the inner walls of both sides of the fixed box, a first motor fixedly connected to one side of the fixed box, a worm wheel meshing with the outer surface of the worm gear, the output end of the first motor passing through one end of the fixed box and fixedly connected to the worm gear, a lead screw threadedly connected to one end of the worm wheel, and a measuring assembly provided at the bottom end of the lead screw.
[0007] As a preferred technical solution of this application, the measuring component includes a connecting plate. The outer surface of the connecting plate has six first through slots. The inner walls of the six first through slots are slidably connected to intelligent measuring rods. The bottom side of each of the six intelligent measuring rods is fixedly connected to a connecting rod. The bottom end of the connecting plate is provided with a driving gear, and one end of the driving gear has six through second through slots. The bottom sides of the connecting plate are fixedly connected to support plates, and the lower inner wall of the support plates is fixedly connected to a second motor. The output end of the second motor is fixedly connected to the middle of the bottom end of the driving gear.
[0008] With the above technical solution, after the measuring component reaches the specified height, the output end of the second motor is started to drive the drive gear to rotate. One end of the drive gear has six second through slots arranged in a circular array, and the inner wall of the second through slot is in contact with the outer surface of the connecting rod on one side of the bottom of the intelligent measuring rod. The intelligent measuring rod slides in contact with the inner wall of the six first through slots arranged in a circular array on the outer surface of the connecting plate. When the drive gear rotates, it pushes the connecting rod to move through the second through slot, thereby driving the intelligent measuring rod to extend vertically downward along the first through slot and insert it into the foundation to be tested. The six intelligent measuring rods are arranged in a circular array. After the test is completed, the second motor is started in reverse, which can drive the intelligent measuring rod to retract. This can effectively detect the inner wall diameter of the foundation depth.
[0009] As a preferred technical solution of this application, a limiting groove is formed on the outer surface of the lead screw, and a limiting rod is fixedly connected to both inner walls of the fixing box, with the outer surface of the limiting rod fitting against the inner wall of the limiting groove.
[0010] Through the above technical solution, the rotation of the worm gear is converted into the linear lifting and lowering motion of the lead screw.
[0011] As a preferred technical solution of this application, one end of the lead screw is connected through to the upper and lower ends of the fixed box.
[0012] Through the above technical solution, the measuring component at the bottom of the lead screw can move up and down.
[0013] As a preferred technical solution of this application, the top surface of the fixing box is fixedly connected with a plurality of support rods, and the top end of the support rods is fixedly connected to the fixing plate.
[0014] Through the above technical solution, the support rod connects the fixing plate to the fixing box.
[0015] As a preferred technical solution of this application, the top surface of the fixing plate is threaded with a plurality of bolts arranged in a rectangular array.
[0016] Through the above technical solution, the bolts tightly connect the fixing plate to the ground support structure, preventing the device from shifting during the testing process.
[0017] As a preferred technical solution of this application, the inner walls of the six first through slots are respectively attached to the outer surfaces of the six intelligent measuring rods, and the outer surfaces of the six connecting rods are respectively attached to the inner walls of the six second through slots.
[0018] With the above technical solution, the connecting rod slides in the inner wall of the second through groove.
[0019] As a preferred technical solution of this application, the six first through slots, the six intelligent measuring rods, the six connecting rods, and the six second through slots are all arranged in a ring array.
[0020] Using the above technical solution, the ring array distribution can detect the inner wall diameter at the foundation depth.
[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0022] 1. This utility model can drive the worm wheel to rotate synchronously by the rotation of the worm. One end of the worm wheel is threaded to the lead screw, and the limiting groove opened on the outer surface of the lead screw fits with the limiting rod fixed on the inner wall of both sides of the fixed box. The rotation of the worm wheel will be converted into the linear lifting and lowering motion of the lead screw, thereby driving the measuring component at the bottom of the lead screw to move up and down, so as to achieve the purpose of effectively adjusting to the appropriate depth of the foundation pit for detection.
[0023] 2. This utility model can achieve the purpose of effectively detecting the inner diameter of the foundation depth by rotating the drive gear, which in turn drives the connecting rod to move through the second through groove, thereby causing the intelligent measuring rod to extend vertically downward along the first through groove and insert into the foundation to be tested. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the structure of this utility model.
[0026] Figure 2 This is a schematic diagram of the lifting component of this utility model.
[0027] Figure 3 This is a schematic diagram of the measuring component of this utility model.
[0028] Figure 4 This is a schematic diagram of the measuring component of this utility model.
[0029] In the diagram: 1. Fixed plate; 2. Lifting assembly; 3. Measuring assembly; 4. Bolt; 21. Fixed box; 22. Worm gear; 23. First motor; 24. Worm wheel; 25. Lead screw; 26. Limiting rod; 27. Limiting groove; 28. Support rod; 31. Connecting plate; 32. First through groove; 33. Intelligent measuring rod; 34. Connecting rod; 35. Drive gear; 36. Second through groove; 37. Support plate; 38. Second motor. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Example: Figure 1-4 As shown, this utility model provides a foundation testing device, including a fixing plate 1. The top surface of the fixing plate 1 is threaded with a plurality of bolts 4 arranged in a rectangular array. The bottom surface of the fixing plate 1 is provided with a lifting assembly 2. The lifting assembly 2 includes a fixing box 21. The inner walls of both sides of the fixing box 21 are rotatably connected to a worm gear 22. A first motor 23 is fixedly connected to one side of the fixing box 21.
[0032] The outer surface of the worm gear 22 is meshed with a worm wheel 24. The output end of the first motor 23 passes through one end of the fixed box 21 and is fixedly connected to the worm gear 22. One end of the worm wheel 24 is threadedly connected to a lead screw 25. One end of the lead screw 25 is connected through to the upper and lower ends of the fixed box 21 respectively. A limit groove 27 is opened on the outer surface of the lead screw 25. The inner walls of both sides of the fixed box 21 are fixedly connected to a limit rod 26. The outer surface of the limit rod 26 is in contact with the inner wall of the limit groove 27. Multiple support rods 28 are fixedly connected to the top surface of the fixed box 21. The top end of the support rod 28 is fixedly connected to the fixed plate 1. A measuring component 3 is provided at the bottom end of the lead screw 25.
[0033] The rotation of the worm gear 24 is converted into the linear lifting motion of the lead screw 25, which in turn drives the measuring component 3 at the bottom of the lead screw 25 to move up and down.
[0034] The measuring component 3 includes a connecting plate 31. The outer surface of the connecting plate 31 has six first through slots 32. The inner walls of the six first through slots 32 are slidably connected to intelligent measuring rods 33. The bottom side of the six intelligent measuring rods 33 is fixedly connected to a connecting rod 34. The bottom end of the connecting plate 31 is provided with a driving gear 35, and one end of the driving gear 35 has six through second through slots 36. The inner walls of the six first through slots 32 are respectively in contact with the outer surfaces of the six intelligent measuring rods 33, and the outer surfaces of the six connecting rods 34 are respectively in contact with the inner walls of the six second through slots 36. The six first through slots 32, six intelligent measuring rods 33, six connecting rods 34 and six second through slots 36 are all arranged in a ring array. The bottom sides of the connecting plate 31 are fixedly connected to support plates 37, and the lower inner wall of the support plates 37 is fixedly connected to a second motor 38. The output end of the second motor 38 is fixedly connected to the middle of the bottom end of the driving gear 35.
[0035] The intelligent measuring rod 33 slides against the inner wall of the six first through slots 32 arranged in a ring on the outer surface of the connecting plate 31. When the drive gear 35 rotates, it pushes the connecting rod 34 to move through the second through slot 36, thereby causing the intelligent measuring rod 33 to extend vertically downward along the first through slot 32 and insert into the foundation to be tested.
[0036] The working principle of a foundation testing device according to an embodiment of this application is as follows: First, the device is fixed at a designated position on the foundation to be tested. Then, multiple bolts 4 arranged in a rectangular array and threaded into the top surface of the fixing plate 1 are used to tightly connect the fixing plate 1 to the ground support structure to prevent displacement of the device during the testing process. The top surface of the fixing box 21 is fixedly connected to the fixing plate 1 through multiple support rods 28, which further enhances the connection stability between the fixing box 21 and the fixing plate 1 and provides a stable foundation for subsequent lifting and testing operations.
[0037] When the height of the measuring component 3 needs to be adjusted to adapt to different foundation detection depths, the first motor 23 is started. The output end of the first motor 23 passes through the fixed box 21 and drives the worm 22 to rotate. Since the worm 22 is meshed with the worm wheel 24, the rotation of the worm 22 will drive the worm wheel 24 to rotate synchronously. One end of the worm wheel 24 is threadedly connected to the lead screw 25, and the limiting groove 27 opened on the outer surface of the lead screw 25 is in contact with the limiting rod 26 fixed on both sides of the inner wall of the fixed box 21. The rotation of the worm wheel 24 will be converted into the linear lifting and lowering motion of the lead screw 25, which in turn drives the measuring component 3 at the bottom of the lead screw 25 to move up and down, thereby achieving the purpose of effectively adjusting to the appropriate depth of the foundation pit for detection.
[0038] After the measuring component 3 reaches the designated height, the output end of the second motor 38 is started to drive the drive gear 35 to rotate. One end of the drive gear 35 has six second through slots 36 arranged in a ring array, and the inner wall of the second through slots 36 is in contact with the outer surface of the connecting rod 34 on one side of the bottom end of the intelligent measuring rod 33. The intelligent measuring rod 33 slides in contact with the inner wall of the six first through slots 32 arranged in a ring array on the outer surface of the connecting plate 31. When the drive gear 35 rotates, it pushes the connecting rod 34 to move through the second through slots 36, thereby driving the intelligent measuring rod 33 to extend vertically downward along the first through slots 32 and insert into the foundation to be tested. The six intelligent measuring rods 33 are arranged in a ring array. After the test is completed, the second motor 38 is started in reverse, which can drive the intelligent measuring rod 33 to retract, thereby achieving the purpose of effectively testing the inner wall diameter of the foundation depth.
[0039] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A foundation testing device, comprising a fixing plate (1), characterized in that: The bottom surface of the fixed plate (1) is provided with a lifting component (2); The lifting assembly (2) includes a fixed box (21), with a worm gear (22) rotatably connected to the inner walls of both sides of the fixed box (21). A first motor (23) is fixedly connected to one side of the fixed box (21), and a worm wheel (24) is meshed with the outer surface of the worm gear (22). The output end of the first motor (23) passes through one end of the fixed box (21) and is fixedly connected to the worm gear (22). A lead screw (25) is threaded to one end of the worm wheel (24), and a measuring assembly (3) is provided at the bottom end of the lead screw (25).
2. The foundation testing device as described in claim 1, characterized in that: The measuring component (3) includes a connecting plate (31). The outer surface of the connecting plate (31) is provided with six first through slots (32). The inner walls of the six first through slots (32) are slidably connected with intelligent measuring rods (33). The bottom side of the six intelligent measuring rods (33) is fixedly connected with a connecting rod (34). The bottom end of the connecting plate (31) is provided with a drive gear (35). One end of the drive gear (35) is provided with six through second through slots (36). The bottom sides of the connecting plate (31) are fixedly connected with support plates (37). The lower inner wall of the support plate (37) is fixedly connected with a second motor (38). The output end of the second motor (38) is fixedly connected to the middle of the bottom end of the drive gear (35).
3. The foundation testing device as described in claim 1, characterized in that: The outer surface of the lead screw (25) is provided with a limiting groove (27), and the inner walls of both sides of the fixing box (21) are fixedly connected to a limiting rod (26), and the outer surface of the limiting rod (26) is in contact with the inner wall of the limiting groove (27).
4. The foundation testing device as described in claim 1, characterized in that: One end of the lead screw (25) is connected through to the upper and lower ends of the fixed box (21).
5. A foundation testing device as described in claim 1, characterized in that: The top surface of the fixed box (21) is fixedly connected with a plurality of support rods (28), and the top end of the support rods (28) is fixedly connected to the fixed plate (1).
6. The foundation testing device as described in claim 1, characterized in that: The top surface of the fixing plate (1) is threaded with multiple bolts (4) arranged in a rectangular array.
7. A foundation testing device as described in claim 2, characterized in that: The inner walls of the six first through slots (32) are respectively attached to the outer surfaces of the six intelligent measuring rods (33), and the outer surfaces of the six connecting rods (34) are respectively attached to the inner walls of the six second through slots (36).
8. A foundation testing device as described in claim 2, characterized in that: The six first through slots (32), the six intelligent measuring rods (33), the six connecting rods (34), and the six second through slots (36) are all arranged in a ring array.