Foundation bearing capacity and friction force field test device

Abstract

The utility model provides a field test device for bearing capacity and friction force of a foundation, which belongs to the technical field of foundation earthwork and comprises a supporting mechanism comprising a supporting plate, a triangular support fixedly mounted at the bottom of the supporting plate and a driving component arranged at the top of the supporting plate. The auxiliary monitoring mechanism comprises a shell, a spring fixedly installed in an inner cavity of the shell, a movable rod movably arranged in an inner cavity of the spring in a sleeving mode, and a limiting plate fixedly installed at one end of the movable rod. Through the overall compact design of the device, the occupied area of the device is remarkably reduced, so that the device can adapt to a narrow space or complex working conditions adjacent to an existing building, and the problem that a traditional test device is limited in installation and operation is solved; meanwhile, real-time visual monitoring of foundation displacement and load change is achieved through the synergistic effect of the auxiliary monitoring mechanism, data acquisition difficulty caused by device structure shielding or insufficient observation means is avoided, and therefore test precision and efficiency are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of foundation earthwork engineering, specifically relating to a field testing device for foundation bearing capacity and friction force. Background Technology

[0002] The field test device for bearing capacity and friction is a key piece of equipment used to evaluate the performance of foundation engineering. It is mainly used to measure the bearing capacity of the foundation under different load conditions and the friction characteristics between the foundation and the structure. By simulating the actual engineering environment, the device can monitor and record key parameters such as foundation deformation, stress distribution and friction coefficient in real time, providing a scientific basis for engineering design, construction and quality assessment.

[0003] Currently, the testing device has the following shortcomings in practical applications: First, it is limited by site conditions, especially in narrow spaces or near existing buildings, making it difficult to install and operate the testing device; Second, during the application of loads, due to the obstruction of the device structure or insufficient observation methods, operators cannot directly monitor the key parameters and phenomena during the test, resulting in reduced test accuracy and efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a field testing device for foundation bearing capacity and friction force, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A field testing device for foundation bearing capacity and friction force, comprising,

[0007] The support mechanism includes a support plate, a triangular bracket fixedly installed at the bottom of the support plate, and a drive assembly disposed at the top of the support plate;

[0008] The auxiliary monitoring mechanism includes a housing, a spring fixedly installed inside the housing cavity, a movable rod movably sleeved inside the spring cavity, a limiting plate fixedly installed at one end of the movable rod, a display plate fixedly installed on the outside of the movable rod, and a limiting groove formed in the inner wall of the housing.

[0009] Friction mechanism used in conjunction with the auxiliary monitoring mechanism.

[0010] As a preferred embodiment of this utility model, the auxiliary monitoring mechanism further includes a limiting strip fixedly installed on the outside of the movable rod, a scale groove opened on the outside of the housing, a fixing block fixedly installed on the outside of the housing, and a sensor fixedly installed at the bottom of the fixing block. The top of the movable rod is fixedly connected to the bottom of the triangular bracket through the opening at the top of the housing.

[0011] As a preferred embodiment of the present invention, the support mechanism further includes a hole penetrating the inner cavity of the support plate, a positioning ring fixedly installed in the inner cavity of the hole, and a jack disposed in the inner cavity of the positioning ring.

[0012] As a preferred embodiment of this utility model, the drive assembly includes a housing fixedly installed on the top of the support plate, a servo motor fixedly installed in the inner cavity of the housing, a drive shaft wheel fixedly installed at the output end of the servo motor, a belt movably sleeved on the outside of the drive shaft wheel, and a driven shaft wheel sleeved on the other end of the belt.

[0013] As a preferred embodiment of this utility model, the drive assembly further includes a through hole formed in the inner cavity of the housing, a threaded sleeve movably installed in the inner cavity of the through hole, and a screw rotatably installed in the inner cavity of the threaded sleeve, wherein the bottom of the threaded sleeve is rotatably connected to the top of the jack.

[0014] As a preferred embodiment of the present invention, the friction mechanism includes a drive motor fixedly installed on the outside of the housing, a first rotating rod rotatably installed on the output end of the drive motor, and a transmission rod hinged to the end of the first rotating rod.

[0015] As a preferred embodiment of the present invention, the friction mechanism further includes a second rotating rod hinged to the outside of the transmission rod, a movable shaft rotatably mounted on the outside of the second rotating rod, and a movable plate fixedly mounted on the outside of the movable shaft.

[0016] Compared with the prior art, the beneficial effects of this utility model are: through the compact design of the device as a whole, the footprint of the device is significantly reduced, making it adaptable to complex working conditions in narrow spaces or adjacent existing buildings, and solving the problem of limited installation and operation of traditional test devices; at the same time, the synergistic effect of the auxiliary monitoring mechanism realizes real-time and intuitive monitoring of foundation displacement and load changes, avoiding the difficulty in data acquisition caused by device structure obstruction or insufficient observation means, thereby improving the accuracy and efficiency of the test. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2This is a cross-sectional view of the shell structure of this utility model;

[0020] Figure 3 This is a partial sectional view of the box structure of this utility model;

[0021] Figure 4 This is a side view of the overall structure and a partially enlarged schematic diagram of the shell structure of this utility model.

[0022] In the diagram: 100, Support mechanism; 101, Support plate; 102, Triangular bracket; 103, Drive assembly; 103a, Housing; 103b, Servo motor; 103c, Drive shaft pulley; 103d, Belt; 103e, Driven shaft pulley; 103f, Through hole; 103g, Threaded sleeve; 103h, Screw; 104, Hole body; 105, Positioning ring sleeve; 106, Jack; 200, Auxiliary monitoring. Mechanism; 201, Housing; 202, Spring; 203, Movable Rod; 204, Limiting Plate; 205, Display Panel; 206, Limiting Channel; 207, Limiting Strip; 208, Scale Groove; 209, Fixing Block; 210, Sensor; 300, Friction Mechanism; 301, Drive Motor; 302, First Rotating Rod; 303, Transmission Rod; 304, Second Rotating Rod; 305, Movable Shaft; 306, Moving Plate. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Example 1

[0027] Reference Figures 1-4 This is the first embodiment of the present invention, which provides a field testing device for foundation bearing capacity and friction force, comprising:

[0028] The support mechanism 100 includes a support plate 101, a triangular bracket 102 fixedly installed at the bottom of the support plate 101, and a drive assembly 103 disposed at the top of the support plate 101.

[0029] The auxiliary monitoring mechanism 200 includes a housing 201, a spring 202 fixedly installed inside the housing 201, a movable rod 203 movably sleeved inside the spring 202, a limiting plate 204 fixedly installed at one end of the movable rod 203, a display plate 205 fixedly installed on the outside of the movable rod 203, and a limiting groove 206 formed in the inner wall of the housing 201.

[0030] Friction mechanism 300 used in conjunction with auxiliary monitoring mechanism 200.

[0031] The triangular bracket 102 and the support plate 101 adopt a compact structural design, which reduces the footprint of the entire device.

[0032] Specifically, the auxiliary monitoring mechanism 200 also includes a limiting strip 207 fixedly installed on the outside of the movable rod 203, a scale groove 208 opened on the outside of the housing 201, a fixing block 209 fixedly installed on the outside of the housing 201, and a sensor 210 fixedly installed at the bottom of the fixing block 209. The top of the movable rod 203 is fixedly connected to the bottom of the triangular bracket 102 through the opening at the top of the housing 201.

[0033] The spring 202 inside the housing 201 works in conjunction with the movable rod 203 to reflect the displacement changes during the test in real time. The guiding effect of the limiting plate 204 and the limiting channel 206 ensures the stable movement of the movable rod 203. In addition, the display plate 205 and the scale groove 208 allow the operator to directly read the test data without the need for complicated instruments. During the application of load, the operator can observe the scale on the display plate 205 to understand the deformation of the foundation in real time and adjust the test parameters in a timely manner.

[0034] Furthermore, the support mechanism 100 also includes a hole 104 penetrating the inner cavity of the support plate 101, a positioning ring 105 fixedly installed in the inner cavity of the hole 104, and a jack 106 disposed in the inner cavity of the positioning ring 105.

[0035] The inclusion of the orifice 104 and the positioning ring 105 allows the jack 106 to be quickly installed and disassembled, further improving the device's adaptability to complex site conditions.

[0036] Preferably, the drive assembly 103 includes a housing 103a fixedly mounted on the top of the support plate 101, a servo motor 103b fixedly mounted in the inner cavity of the housing 103a, a drive shaft wheel 103c fixedly mounted on the output end of the servo motor 103b, a belt 103d movably sleeved on the outside of the drive shaft wheel 103c, and a driven shaft wheel 103e sleeved on the other end of the belt 103d. The drive assembly 103 also includes a through hole 103f opened in the inner cavity of the housing 103a, a threaded sleeve 103g movably mounted in the inner cavity of the through hole 103f, and a screw 103h rotatably mounted in the inner cavity of the threaded sleeve 103g. The bottom of the threaded sleeve 103g is rotatably connected to the top of the jack 106.

[0037] The servo motor 103b, through the transmission of the drive shaft wheel 103c, belt 103d, and driven shaft wheel 103e, achieves precise control of the jack 106. The cooperation between the threaded sleeve 103g and the screw 103h further ensures the stability and controllability of the load application process. During the test, the operator can precisely adjust the force applied by the jack 106 by controlling the speed of the servo motor 103b, thereby avoiding the impact on the test results due to excessive or insufficient load.

[0038] When in use, the operator first places the tripod 102 on the foundation. The servo motor 103b drives the threaded sleeve 103g and the screw 103h to move through the drive shaft wheel 103c, belt 103d and driven shaft wheel 103e, thereby achieving precise control of the jack 106.

[0039] During the test, the spring 202 inside the housing 201 works in conjunction with the movable rod 203 to reflect the displacement changes of the foundation in real time. The guiding effect of the limiting plate 204 and the limiting channel 206 ensures the stable movement of the movable rod 203. The operator can directly read the test data by observing the scale on the display panel 205 and the scale groove 208 without the need for complicated instruments. The specific model of the sensor 210 is a Honeywell FS19 pressure sensor, which is used to monitor the load applied by the jack 106 in real time. Through its high-precision measurement and wide temperature range adaptability, the operator can accurately obtain the test data and adjust the test parameters in a timely manner according to the scale on the display panel 205 to ensure the accuracy and reliability of the test results.

[0040] In summary, the synergistic effect of the support mechanism 100 and the auxiliary monitoring mechanism 200 significantly improves the efficiency and accuracy of the test. In narrow spaces, operators can quickly install the device and observe the test data in real time through the auxiliary monitoring mechanism 200. At the same time, the load size is precisely controlled through the drive component 103, ultimately obtaining accurate data on the foundation bearing capacity and friction force.

[0041] Example 2

[0042] Reference Figure 1 and 4 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a friction mechanism 300 that can assist in testing after installing the friction medium.

[0043] Specifically, the friction mechanism 300 includes a drive motor 301 fixedly installed on the outside of the housing 201, a first rotating rod 302 rotatably installed on the output end of the drive motor 301, and a transmission rod 303 hinged to the end of the first rotating rod 302. The friction mechanism 300 also includes a second rotating rod 304 hinged to the outside of the transmission rod 303, a movable shaft 305 rotatably installed on the outside of the second rotating rod 304, and a movable plate 306 fixedly installed on the outside of the movable shaft 305.

[0044] The drive motor 301 drives the second rotating rod 304 and the movable shaft 305 through the transmission of the first rotating rod 302 and the transmission rod 303, and finally drives the moving plate 306 to make precise displacement. When installing the friction medium, the operator only needs to start the drive motor 301, and the moving plate 306 can smoothly push the friction medium to the designated position without manual handling or adjustment, which improves the installation efficiency and safety.

[0045] During use, the operator first starts the drive motor 301, which drives the first rotating rod 302 to rotate. The first rotating rod 302 transmits power to the second rotating rod 304 through the transmission rod 303. The second rotating rod 304 drives the movable shaft 305 to rotate, thereby driving the moving plate 306 to move horizontally. The moving plate 306 smoothly pushes the friction medium to the test position and ensures that it is in close contact with the test device by uniformly pressing it. Throughout the process, the operator can observe the position of the moving plate 306 and adjust the speed and direction of the drive motor 301 in real time to ensure the installation quality of the friction medium and the smooth progress of the test.

[0046] In summary, the drive motor 301 drives the moving plate 306 to make precise displacement through the transmission rod 303, which can smoothly push the friction medium to the designated position, avoiding the tediousness and errors of manual handling. At the same time, the uniform pressing function of the moving plate 306 ensures close contact between the friction medium and the test device, improving the stability and reliability of the test results. In addition, the compact design and flexible movement function of the friction mechanism 300 enable it to adapt to the needs of narrow or complex sites, providing great convenience for practical engineering tests.

[0047] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0048] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0049] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A field testing device for foundation bearing capacity and friction force, characterized in that: include, The support mechanism (100) includes a support plate (101), a triangular bracket (102) fixedly installed at the bottom of the support plate (101), and a drive assembly (103) disposed at the top of the support plate (101). The auxiliary monitoring mechanism (200) includes a housing (201), a spring (202) fixedly installed in the inner cavity of the housing (201), a movable rod (203) movably sleeved in the inner cavity of the spring (202), a limiting plate (204) fixedly installed at one end of the movable rod (203), a display plate (205) fixedly installed on the outside of the movable rod (203), and a limiting groove (206) formed in the inner wall of the housing (201). Friction mechanism (300) used in conjunction with the auxiliary monitoring mechanism (200).

2. The field testing device for foundation bearing capacity and friction force according to claim 1, characterized in that: The auxiliary monitoring mechanism (200) also includes a limiting strip (207) fixedly installed on the outside of the movable rod (203), a scale groove (208) opened on the outside of the housing (201), a fixing block (209) fixedly installed on the outside of the housing (201), and a sensor (210) fixedly installed on the bottom of the fixing block (209). The top of the movable rod (203) is fixedly connected to the bottom of the triangular bracket (102) through the opening at the top of the housing (201).

3. The field testing device for foundation bearing capacity and friction force according to claim 2, characterized in that: The support mechanism (100) further includes a hole (104) penetrating the inner cavity of the support plate (101), a positioning ring (105) fixedly installed in the inner cavity of the hole (104), and a jack (106) disposed in the inner cavity of the positioning ring (105).

4. The field testing device for foundation bearing capacity and friction force according to claim 3, characterized in that: The drive assembly (103) includes a housing (103a) fixedly mounted on the top of the support plate (101), a servo motor (103b) fixedly mounted inside the housing (103a), a drive shaft wheel (103c) fixedly mounted on the output end of the servo motor (103b), a belt (103d) movably sleeved on the outside of the drive shaft wheel (103c), and a driven shaft wheel (103e) sleeved on the other end of the belt (103d).

5. The field testing device for foundation bearing capacity and friction force according to claim 4, characterized in that: The drive assembly (103) further includes a through hole (103f) formed in the inner cavity of the housing (103a), a threaded sleeve (103g) movably installed in the inner cavity of the through hole (103f), and a screw (103h) rotatably installed in the inner cavity of the threaded sleeve (103g). The bottom of the threaded sleeve (103g) is rotatably connected to the top of the jack (106).

6. The field testing device for foundation bearing capacity and friction force according to claim 5, characterized in that: The friction mechanism (300) includes a drive motor (301) fixedly installed on the outside of the housing (201), a first rotating rod (302) rotatably installed on the output end of the drive motor (301), and a transmission rod (303) hinged to the end of the first rotating rod (302).

7. The field testing device for foundation bearing capacity and friction force according to claim 6, characterized in that: The friction mechanism (300) further includes a second rotating rod (304) hinged to the outside of the transmission rod (303), a movable shaft (305) rotatably mounted on the outside of the second rotating rod (304), and a movable plate (306) fixedly mounted on the outside of the movable shaft (305).

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