Foundation mechanics performance rapid detector

Abstract

The utility model discloses a foundation mechanics performance quick detection appearance relates to foundation detection field, and the bearing capacity detection device of prior art is low in artificial operation efficiency and single function, and bearing capacity, settlement and pressure change etc. The problem of data such as synchronous record is solved. The middle part one side fixedly connected with range finding device is arranged in the lower end surface of support flat plate, the middle part fixedly connected with electric control hydraulic pressure rod is arranged in the upper end surface of support flat plate, the lower end of the telescopic end of electric control hydraulic pressure rod passes through second limit tube and extends out the lower end surface of support flat plate and is fixedly connected with cylindrical connecting piece, the lower end of cylindrical connecting piece is connected with the feeler rod, the middle part upper end fixedly connected with pressure sensor is arranged in the feeler rod, the feeler rod upper end one side fixedly connected with range finding plate, the feeler rod lower end passes through first limit tube and extends out the lower end surface of support base plate and is connected with flat pressing plate, adopts electric control hydraulic pressure rod automatic loading mode, and the labor intensity of detection personnel is reduced greatly.

Description

Technical Field

[0001] This utility model relates to the field of foundation testing, specifically a rapid testing instrument for the mechanical properties of foundations. Background Technology

[0002] Foundation testing is a technical process that scientifically assesses the physical and mechanical properties, bearing capacity, and stability of the soil or rock layers underlying a building. Its aim is to ensure the safety and reliability of the foundation and meet engineering construction requirements. Testing verifies the quality of foundation design and construction, prevents risks such as uneven settlement and landslides, provides a basis for reinforcement treatment, and ensures the safety of the building throughout its entire life cycle. Foundation mechanical testing typically requires the use of testing equipment.

[0003] For example, patent application CN 219908869 U discloses a foundation bearing capacity testing device, belonging to the field of foundation bearing capacity testing technology. It includes a probe and a hammer, as well as a triangular support and a sleeve. The sleeve is positioned on top of the triangular support and fits over the probe. The sleeve is equipped with a moving rod, a lifting assembly, and a limiting assembly. The moving rod is slidably mounted on the sleeve in a vertical direction. A lever is rotatably mounted at the lower end of the moving rod. The lifting assembly is connected to the moving rod and drives it to move vertically. The limiting assembly is mounted on the moving rod and connected to the lever, ensuring that the lever always tends to rotate to be perpendicular to the moving rod. The limiting assembly also limits and fixes the lever. This application has the effect of reducing the labor intensity of workers.

[0004] However, the bearing capacity testing devices mentioned above are inefficient to operate manually and have limited functionality, and cannot simultaneously record data such as bearing capacity, settlement, and pressure changes; therefore, the market urgently needs to develop a rapid testing instrument for foundation mechanical properties to help people solve existing problems. Utility Model Content

[0005] The purpose of this invention is to provide a rapid testing instrument for the mechanical properties of foundations, in order to solve the problems mentioned in the background art, such as the low efficiency of manual operation and limited functionality of existing bearing capacity testing devices, which cannot simultaneously record data such as bearing capacity, settlement, and pressure changes.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rapid foundation mechanical performance testing instrument, comprising a supporting base plate, with supporting rods fixedly connected to both ends of the upper surface of the supporting base plate at the front and rear ends, and a supporting plate fixedly connected to the upper ends of the four supporting rods, a ranging device fixedly connected to one side of the lower surface of the supporting plate, an electro-hydraulic rod fixedly connected to the middle of the upper surface of the supporting plate, a second limiting tube fixedly connected to the middle of the supporting plate, the lower end of the telescopic end of the electro-hydraulic rod extending through the second limiting tube out of the lower surface of the supporting plate and fixedly connected to a cylindrical connector, a probe connected to the lower end of the cylindrical connector, a pressure sensor fixedly connected to the upper middle of the probe, a ranging plate fixedly connected to one side of the upper end of the probe, a first limiting tube fixedly connected to the middle of the supporting base plate, and a flat pressure plate connected to the lower end of the probe extending through the first limiting tube out of the lower surface of the supporting base plate.

[0007] Preferably, both the front and rear ends of the support base plate are rotatably connected to support arms, and a chisel is rotatably connected to the end of the support arm away from the support base plate.

[0008] Preferably, circular fasteners are fixedly connected to both the front and rear ends of the two sides of the support base plate, and a rotating connector is fixedly connected to one end of the support arm. The rotating connector is fitted into the outside of the circular fastener and is rotatably connected to the circular fastener through a rotating shaft.

[0009] Preferably, a helical blade is fixedly connected to the lower end of the drill rod, a rotating disk is fixedly connected to the upper end of the drill rod, and a second limiting ring and a first limiting ring are fixedly connected to the upper end of the middle part of the drill rod and at the upper and lower ends of the support arm, respectively.

[0010] Preferably, the lower end face of the cylindrical connector is provided with a first internal threaded hole, and the upper end of the probe is fixedly connected with an external threaded part. The external threaded part of the upper end of the probe is inserted into the first internal threaded hole and is threadedly connected and fixed to the cylindrical connector.

[0011] Preferably, a second internal threaded hole is provided in the middle of the lower end face of the probe rod, and a threaded post is fixedly connected to the middle of the upper end of the flat pressure plate.

[0012] Preferably, the threaded post at the upper end of the flat plate is inserted into the second internal threaded hole and is threadedly connected and fixed to the probe rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, the automatic loading method of the electro-hydraulic rod is adopted, which completely replaces the traditional manual hammering operation method. This not only greatly reduces the labor intensity of the testing personnel, but also ensures the stability and controllability of the loading force, and significantly improves the accuracy and reliability of the test data.

[0015] (2) In this utility model, by setting up the pressure sensor and the distance measuring device to work together, the real-time synchronous monitoring of the penetration resistance and penetration depth is realized, and key mechanical parameters such as the bearing capacity and compression modulus of the foundation can be quickly obtained.

[0016] (3) In this utility model, a detachable probe rod and flat plate design are adopted, which can quickly replace probes of different specifications according to different geological conditions and testing needs, greatly enhancing the applicability and flexibility of the equipment. Attached Figure Description

[0017] Figure 1 This is a front view of the rapid testing instrument for the mechanical properties of the foundation of this utility model.

[0018] Figure 2 This is a front sectional view of the present invention;

[0019] Figure 3 This is a side sectional view of the present invention;

[0020] Figure 4 This is a detailed enlarged view of part A of this utility model.

[0021] In the diagram: 1. Support base plate; 101. Circular fixing piece; 102. First limiting tube; 103. Support rod; 2. Support arm; 201. Rotating connecting piece; 202. Rotating shaft; 3. Chisel rod; 301. Helical blade; 302. First limiting ring; 303. Second limiting ring; 304. Rotating disk; 4. Support plate; 401. Second limiting tube; 402. Distance measuring device; 5. Electro-hydraulic rod; 501. Cylindrical connecting piece; 502. First internal threaded hole; 6. Probe rod; 601. External threaded part; 602. Pressure sensor; 603. Distance measuring plate; 604. Second internal threaded hole; 7. Flat pressure plate; 701. Threaded column. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figures 1-4This utility model provides an embodiment of a rapid foundation mechanical performance testing instrument, comprising a supporting base plate 1, with supporting arms 2 rotatably connected to both the front and rear ends of both sides of the supporting base plate 1, and a drill rod 3 rotatably connected to the end of the supporting arm 2 away from the supporting base plate 1. Circular fixing members 101 are fixedly connected to both the front and rear ends of both sides of the supporting base plate 1, and a rotating connecting member 201 is fixedly connected to one end of the supporting arm 2. The rotating connecting member 201 is fitted onto the outside of the circular fixing member 101 and is rotatably connected to the circular fixing member 101 via a rotating shaft 202. Next, a spiral blade 301 is fixedly connected to the lower end of the drill rod 3, and a rotating disk 304 is fixedly connected to the upper end of the drill rod 3. A second limiting ring 303 and a first limiting ring 302 are fixedly connected to the upper and lower ends of the middle part of the drill rod 3 and the upper and lower ends of the support arm 2, respectively. The second limiting ring 303 and the first limiting ring 302 restrict the drill rod 3 from moving up and down on the support arm 2. By rotating the four rotating disks 304 respectively, the rotating disks 304 drive the spiral blade 301 to rotate into the ground, so that the four support arms 2 can stably support the entire support base plate 1.

[0024] Please see Figure 2 and Figure 3 Support rods 103 are fixedly connected to both the front and rear ends of the middle part of the upper surface of the support base plate 1. The upper ends of the four support rods 103 are fixedly connected to the support plate 4. A ranging device 402 is fixedly connected to one side of the middle part of the lower surface of the support plate 4. An electro-hydraulic rod 5 is fixedly connected to the middle part of the upper surface of the support plate 4. A second limiting tube 401 is fixedly connected to the middle of the support plate 4. The lower end of the telescopic end of the electro-hydraulic rod 5 extends through the second limiting tube 401 out of the lower surface of the support plate 4 and is fixedly connected to a cylindrical connector. The cylindrical connector 501 has a probe 6 connected to its lower end. A pressure sensor 602 is fixedly connected to the upper middle part of the probe 6. A ranging plate 603 is fixedly connected to one side of the upper end of the probe 6. A first limiting tube 102 is fixedly connected to the middle of the support base plate 1. The lower end of the probe 6 extends through the first limiting tube 102 and out of the lower end face of the support base plate 1, where it is connected to a flat pressure plate 7. By activating the electro-hydraulic rod 5, its telescopic end drives the cylindrical connector 501 and the probe 6 to move downward, causing the flat pressure plate 7 to contact the foundation surface. When the electro-hydraulic rod 5 continuously applies pressure, the pressure sensor 602 monitors the axial pressure on the probe 6 in real time. At the same time, the ranging device 402 records the penetration depth by detecting the displacement of the ranging plate 603. By using the correspondence between pressure data and penetration depth, the bearing capacity and other mechanical parameters of the foundation can be quickly calculated. After the test is completed, the electro-hydraulic rod 5 automatically retracts the probe 6, and rotating the rotating disk 304 retracts the probe 3 and moves it to the next test point.

[0025] Please see Figure 2 and Figure 4A first internal threaded hole 502 is provided in the middle of the lower end face of the cylindrical connector 501. An external threaded part 601 is fixedly connected to the upper end of the probe rod 6. The external threaded part 601 of the upper end of the probe rod 6 is inserted into the first internal threaded hole 502 and is threadedly connected and fixed to the cylindrical connector 501, so that the probe rod 6 can be separated from the cylindrical connector 501 for easy replacement of the probe rod 6. A second internal threaded hole 604 is provided in the middle of the lower end face of the probe rod 6. A threaded post 701 is fixedly connected to the middle of the upper end of the flat pressure plate 7. The threaded post 701 of the upper end of the flat pressure plate 7 is inserted into the second internal threaded hole 604 and is threadedly connected and fixed to the probe rod 6. By rotating the flat pressure plate 7, the flat pressure plate 7 can be separated from the lower end of the probe rod 6, so that the conical probe can be replaced at the lower end of the probe rod 6 as needed.

[0026] Working Principle: In operation, the entire device is first moved to the location of the foundation to be tested. Rotating the rotating disk 304 at the upper end of the four drill rods 3 causes the spiral blades 301 to spin into the ground, securing the four support arms 2 and restricting their vertical movement. Then, the electro-hydraulic rod 5 is activated, its telescopic end driving the probe rod 6 downwards via the cylindrical connector 501, bringing the flat pressure plate 7 into contact with the foundation surface. As the electro-hydraulic rod 5 continuously applies pressure, the pressure sensor 602 monitors the axial pressure on the probe rod 6 in real time. Simultaneously, the ranging device 402 accurately records the penetration depth by detecting the displacement change of the ranging plate 603. By analyzing the correlation between pressure data and penetration depth, key mechanical parameters such as the bearing capacity and compression modulus of the foundation can be quickly calculated. After testing, the electro-hydraulic rod 5 automatically retracts the probe rod 6, and rotating the rotating disk 304 in the opposite direction retracts the drill rod 3, facilitating rapid transfer to the next testing point.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rapid testing instrument for the mechanical properties of foundations, comprising a supporting base plate (1), characterized in that: Support rods (103) are fixedly connected to both ends of the upper surface of the support base plate (1). The upper ends of the four support rods (103) are fixedly connected to a support plate (4). A ranging device (402) is fixedly connected to one side of the lower surface of the support plate (4). An electro-hydraulic rod (5) is fixedly connected to the middle of the upper surface of the support plate (4). A second limiting tube (401) is fixedly connected to the middle of the support plate (4). The lower end of the telescopic end of the electro-hydraulic rod (5) passes through the second limiting tube (401). A cylindrical connector (501) is fixedly connected to the lower end of the support plate (4). A probe (6) is connected to the lower end of the cylindrical connector (501). A pressure sensor (602) is fixedly connected to the upper end of the middle part of the probe (6). A distance measuring plate (603) is fixedly connected to one side of the upper end of the probe (6). A first limiting tube (102) is fixedly connected to the middle part of the support base plate (1). The lower end of the probe (6) extends through the first limiting tube (102) and extends out of the lower end of the support base plate (1) before being connected to a flat pressure plate (7).

2. The rapid testing instrument for foundation mechanical properties according to claim 1, characterized in that: Both ends of the support base plate (1) are rotatably connected to support arms (2), and the end of the support arm (2) away from the support base plate (1) is rotatably connected to a chisel (3).

3. The rapid testing instrument for foundation mechanical properties according to claim 2, characterized in that: Both ends of the support base plate (1) are fixedly connected to circular fasteners (101), and one end of the support arm (2) is fixedly connected to a rotating connector (201). The rotating connector (201) is fitted into the outside of the circular fastener (101) and is rotatably connected to the circular fastener (101) through a rotating shaft (202).

4. The rapid testing instrument for foundation mechanical properties according to claim 2, characterized in that: The lower end of the drill rod (3) is fixedly connected to a spiral blade (301), the upper end of the drill rod (3) is fixedly connected to a rotating disk (304), and the upper end of the middle part of the drill rod (3) and the upper and lower ends of the support arm (2) are respectively fixedly connected to a second limiting ring (303) and a first limiting ring (302).

5. The rapid testing instrument for foundation mechanical properties according to claim 1, characterized in that: The lower end face of the cylindrical connector (501) is provided with a first internal threaded hole (502), and the upper end of the probe (6) is fixedly connected with an external threaded part (601). The external threaded part (601) at the upper end of the probe (6) is inserted into the first internal threaded hole (502) and is threadedly connected and fixed to the cylindrical connector (501).

6. The rapid testing instrument for foundation mechanical properties according to claim 1, characterized in that: The probe (6) has a second internal threaded hole (604) in the middle of its lower end face, and the flat plate (7) has a threaded column (701) fixedly connected to the middle of its upper end.

7. The rapid testing instrument for foundation mechanical properties according to claim 6, characterized in that: The threaded post (701) at the upper end of the flat plate (7) is inserted into the second internal threaded hole (604) and is threadedly connected and fixed to the probe (6).

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