A foundation bearing capacity testing device

Abstract

The present application relates to a foundation bearing capacity detection device, including a detection component, a bracket and a limit component; the detection component includes a probe rod, the extension direction of the probe rod is perpendicular to the ground, the end of the probe rod away from the ground is connected to a boss, the end of the boss away from the probe rod is provided with a hammer rod, the outer periphery of the hammer rod is slidably connected to a heavy hammer, and the heavy hammer is connected to a power member for driving the heavy hammer to move upward along the extension direction of the probe rod; the bracket is placed on the foundation surface, the bracket is connected to a control module, the power member and the probe rod are connected to the bracket, and the power member is electrically connected to the control module; the limit component includes a one-way sliding member, the one-way sliding member is connected to the bracket, after the heavy hammer falls due to gravity, the one-way sliding member limits the movement of the probe rod away from the ground; when the distance between the heavy hammer and the limit rod is less than a predetermined value, the one-way sliding member loses its limiting effect on the probe rod. The present application has the effect of limiting the probe rod by the one-way sliding member, thereby reducing the risk of the probe rod rising during the detection process and affecting the detection accuracy.

Description

Technical Field

[0001] The present application relates to the field of soil surveying, and in particular to a foundation bearing capacity detection device. Background Art

[0002] The standard penetration test is a common method for testing the bearing capacity of foundations. It is usually carried out by driving a probe into the foundation and recording the number of hammer blows required to drive the probe to a certain depth to reflect the bearing capacity of the foundation.

[0003] There is a foundation bearing capacity detection device in the prior art, which includes a base, a top plate and a probe rod. The top end of the probe rod is fixedly connected to a hammer rod, the bottom end of the hammer rod has a boss, a heavy hammer that slides with the hammer rod is mounted on the hammer rod, and the heavy hammer is connected to a power part that moves it up and down. By driving the heavy hammer up and down, the heavy hammer continuously hits the boss, thereby driving the probe rod into a certain depth.

[0004] Regarding the above-mentioned related technologies, when testing clay in a soft plastic or fluid plastic state, the original structure of the soil may be destroyed during the testing process, resulting in the soil being unable to provide sufficient lateral resistance after the probe rod penetrates, causing the probe rod to rise during the testing process, thereby affecting the accuracy of the testing equipment. Summary of the invention

[0005] In order to improve the accuracy of the detection equipment, the present application provides a foundation bearing capacity detection equipment.

[0006] The present application provides a foundation bearing capacity detection device that adopts the following technical solution:

[0007] A foundation bearing capacity detection device, comprising:

[0008] A detection assembly, the detection assembly includes a probe rod, the extension direction of the probe rod is perpendicular to the ground, the end of the probe rod away from the ground is connected to a boss, the end of the boss away from the probe rod is provided with a hammer rod and the extension direction of the hammer rod is perpendicular to the ground, the outer periphery of the hammer rod is slidably connected to a heavy hammer, and the heavy hammer is connected to a power piece for driving the heavy hammer to move upward along the extension direction of the probe rod;

[0009] A bracket, the bracket is placed on the foundation surface, the bracket is connected to a control module, the power piece is connected to the bracket, the probe is slidably connected to the bracket, and the power piece is electrically connected to the control module;

[0010] The limit assembly includes a one-way sliding member, which is connected to the bracket. After the weight falls due to gravity, the one-way sliding member is used to limit the movement of the probe rod away from the ground; when the power member drives the weight to move upward until the distance between the weight and the limit rod is less than a predetermined value, the one-way sliding member loses its limiting effect on the probe rod.

[0011] By adopting the above technical solution, when conducting detection, the detection equipment is placed on the ground so that the probe rod is in contact with the ground. Secondly, the power part is opened through the control module, so that the power part drives the heavy hammer to move along the extension direction of the probe rod away from the ground. Then the power part is closed, so that the heavy hammer moves along the extension direction of the probe rod toward the direction close to the boss through gravity, thereby knocking the probe rod through the boss; after the knocking is completed, the power part is started again, so that the power part drives the heavy hammer to move along the extension direction of the probe rod away from the ground. At this time, the one-way sliding part limits the probe rod, thereby reducing the risk of the probe rod rising during the detection process and affecting the detection accuracy.

[0012] Optionally, the one-way sliding member includes a limiting ratchet bar connected to the bracket, and the ratchet teeth of the limiting ratchet bar are inclined toward the ground along the extension direction of the probe rod; the end of the hammer rod facing away from the ground is connected to a limiting rod, and the limiting rod is hinged with a limiting pawl, and a torsion spring is provided between the limiting rod and the limiting pawl, and the limiting pawl abuts against the limiting ratchet bar under the action of the torsion spring.

[0013] By adopting the above technical solution, after the heavy hammer hits the probe rod through the boss, the probe rod moves away from the heavy hammer, and the limiting pawl abuts against the ratchet teeth of the limiting ratchet bar, thereby limiting the probe rod and reducing the rise of the probe rod during the detection process.

[0014] Optionally, the limiting assembly further includes a reset member, which is connected to the limiting pawl. When the distance between the weight and the limiting rod is less than a predetermined value, the reset member causes the limiting pawl to move in a direction away from the limiting ratchet bar.

[0015] By adopting the above technical solution, when the distance between the weight and the limit rod is less than a predetermined value, the reset member causes the limit pawl to move away from the limit ratchet bar, thereby separating the limit pawl from the ratchet teeth of the limit ratchet bar. After the weight abuts against the limit rod, the weight drives the probe rod to leave the foundation through the limit rod during its rise.

[0016] Optionally, the reset member includes a reset slider, a reset groove is provided on the side of the limit rod facing the ground, and the reset slider is slidably connected to the limit rod via the reset groove; the reset slider is connected to a reset cable, and the end of the reset cable facing away from the reset slider is connected to the limit pawl, and the end of the weight facing away from the ground is connected to a wedge block, and when the distance between the weight and the limit rod is less than a predetermined value, the inclined surface of the wedge block abuts against the end of the reset slider facing the limit pawl.

[0017] By adopting the above technical solution, when the distance between the weight and the limit rod is less than a predetermined value, the inclined surface of the wedge block abuts against one end of the reset slider toward the limit pawl. At this time, the weight continues to rise. Since the inclined surface of the wedge block abuts against one end of the reset slider toward the limit pawl, the weight drives the reset slider to move to the side away from the limit pawl during its rise, thereby separating the limit pawl from the ratchet teeth of the limit ratchet bar.

[0018] Optionally, the reset member also includes a plurality of reset steel balls, a reset slide is provided in the limit rod, and the plurality of reset steel balls are located in the reset slide, and both ends of the reset slide pass through the outer wall of the limit rod on one side facing the weight, and under normal conditions, a portion of the reset steel balls are exposed from one end of the reset slide; the limit pawl is slidably connected to the limit rod through the other end of the reset slide, and the sliding direction is perpendicular to the ground, and when the distance between the weight and the limit rod is less than a predetermined value, the weight and the reset steel balls abut against each other at the end exposed by the reset slide.

[0019] By adopting the above technical solution, when the distance between the weight and the limit rod is less than a predetermined value, the weight and the reset steel ball are abutted by the exposed end of the reset slide, and the weight continues to rise. During the rising process, the weight squeezes the reset steel ball in the reset slide, so that the reset steel ball exerts downward pressure on the limit pawl. After the limit pawl moves downward, a gap is generated between the limit pawl and the ratchet teeth of the limit ratchet bar, thereby reducing the friction to be overcome when the limit pawl is separated from the ratchet teeth of the limit ratchet bar.

[0020] Optionally, a retaining ring is provided at the end of the reset slideway, and the inner ring diameter of the retaining ring is smaller than the diameter of the reset steel ball.

[0021] By adopting the above technical solution, the reset retaining ring limits the reset steel ball located in the reset slideway, and at the same time, the reset steel ball is exposed from one end of the reset slideway through the retaining ring.

[0022] Optionally, a limit slider is provided in the reset slide, and the end of the limit slider facing the ground is also connected to an elastic member, the end of the elastic member facing away from the slider abuts against a retaining ring, the end of the limit slider facing the retaining ring is also connected to a limit slide rod, and the end of the limit slide rod facing away from the limit slider is hinged to a limit ratchet.

[0023] By adopting the above technical solution, when the heavy hammer squeezes the reset steel ball in the reset slideway, the reset steel ball exerts downward pressure on the limit block, so that the limit block drives the limit pawl to move downward.

[0024] Optionally, a distance sensor is further provided on the side of the limit rod facing the ground, and the distance sensor is electrically connected to the control module.

[0025] By adopting the above technical solution, when the distance between the weight and the boss reaches a predetermined value, the distance sensor sends a signal to the control module, and the control module turns off the motor, so that the height of the weight falling each time is close to the predetermined value, thereby reducing the error of the detection result.

[0026] Optionally, the power part includes cross bars located on both sides of the weight, the cross bars are provided with movable pulleys that rotate with the cross bars, the bracket is connected to a motor, the motor is located on the side of the weight away from the ground, both ends of the motor are provided with rotating shafts, the rotating shafts are provided with take-up wheels fixedly connected to the rotating shafts, a steel cable is coiled on the take-up wheel, one end of the steel cable passes around the movable pulley and is connected to the bracket.

[0027] By adopting the above technical solution, after the power part is started, the motor works, and during the rotation of the motor, the steel cable is wound through the rotating shaft and the take-up wheel, so that the weight moves away from the ground through the winding of the steel cable.

[0028] Optionally, there is a scale on the side of the probe rod.

[0029] By adopting the above technical solution, when the heavy hammer strikes the boss, it is possible to observe in real time whether the probe rod has reached the predetermined depth through the scale value on the probe rod.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. When conducting the test, place the test equipment on the ground so that the probe rod contacts the ground. Then, turn on the power part through the control module, so that the power part drives the weight to move away from the ground along the extension direction of the probe rod. Then, turn off the power part, so that the weight moves toward the boss along the extension direction of the probe rod by gravity, thereby knocking the probe rod through the boss. After the knocking is completed, start the power part again, so that the power part drives the weight to move away from the ground along the extension direction of the probe rod. At this time, the one-way sliding part limits the probe rod, thereby reducing the risk of the probe rod rising during the test and affecting the test accuracy.

[0032] 2. After the heavy hammer hits the probe rod through the boss, the probe rod moves away from the heavy hammer, and the limit pawl abuts against the ratchet teeth of the limit ratchet bar, thereby limiting the position of the probe rod and reducing the rise of the probe rod during the detection process;

[0033] 3. When the distance between the weight and the limit rod is less than the preset value, the reset member moves the limit pawl away from the limit ratchet bar, thereby separating the limit pawl from the ratchet teeth of the limit ratchet bar. After the weight abuts against the limit rod, the weight drives the probe rod to leave the foundation through the limit rod during its rise. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1It is a schematic diagram of the overall structure of an embodiment of the present application;

[0035] Figure 2 is a top view of an embodiment of the present application;

[0036] Figure 3 is a schematic cross-sectional structural diagram of an embodiment of the present application;

[0037] Figure 4 yes Figure 3 A partial enlarged schematic diagram of part B;

[0038] Figure 5 yes Figure 1 A partial enlarged schematic diagram of part C in the middle;

[0039] In the figure: 1. detection component; 11. probe rod; 12. boss; 13. hammer rod; 14. weight; 2. power part; 21. cross bar; 22. movable pulley; 23. motor; 24. rotating shaft; 25. take-up wheel; 26. steel cable; 3. bracket; 4. limit assembly; 41. one-way sliding part; 411. limit ratchet bar; 412. limit pawl; 413. torsion spring; 414. limit slide groove; 42. limit rod; 421. reset groove; 422. reset slideway; 43. reset part; 431. reset slider; 432. reset cable; 433. wedge block; 434. reset steel ball; 435. retaining ring; 436. limit slider; 437. limit slide rod; 438. elastic part; 5. control module; 6. distance sensor. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-4 This application is described in further detail.

[0041] The present application embodiment discloses a foundation bearing capacity detection device. Figure 1 and Figure 2 A foundation bearing capacity detection device includes a detection component 1 and a bracket 3. The detection component 1 includes a probe rod 11. The side of the probe rod 11 has scales and the extension direction of the probe rod 11 is perpendicular to the ground. The end of the probe rod 11 away from the ground is connected with a boss 12. The end of the boss 12 away from the probe rod 11 is provided with a hammer rod 13. The end of the hammer rod 13 away from the ground is fixedly connected to a limiting rod 42. The outer periphery of the hammer rod 13 is slidably connected with a weight 14. The weight 14 is connected to a power part 2 for driving the weight 14 to move along the extension direction of the probe rod 11.

[0042] Reference Figure 1 and Figure 3The bracket 3 is placed on the surface of the foundation, the bracket 3 is connected to the control module 5, the power member 2 is connected to the bracket 3, the probe rod 11 is slidably connected to the bracket 3, and the power member 2 is electrically connected to the control module 5. The bracket 3 is also connected to the limit assembly 4, the limit assembly 4 includes a one-way sliding member 41 and a reset member 43, the one-way sliding member 41 is connected to the bracket 3, after the weight 14 falls under gravity, the one-way sliding member 41 is used to limit the movement of the probe rod 11 away from the ground; when the power member 2 drives the weight 14 to move upward until the distance between the weight 14 and the limit rod 42 is less than a predetermined value, the reset member 43 causes the one-way sliding member 41 to lose the limiting effect on the probe rod 11.

[0043] When testing, the testing device is placed on the ground so that the probe rod 11 contacts the ground. Then, the power member 2 is turned on through the control module 5, so that the power member 2 drives the weight 14 to move away from the ground along the extension direction of the probe rod 11. Then, the power member 2 is turned off, so that the weight 14 moves toward the boss 12 along the extension direction of the probe rod 11 by gravity, thereby knocking the probe rod 11 through the boss 12. After the knocking is completed, the power member 2 is started again, so that the power member 2 drives the weight 14 to move away from the ground along the extension direction of the probe rod 11. At this time, the one-way sliding member 41 limits the probe rod 11, thereby reducing the risk of the probe rod 11 rising during the detection process and affecting the detection accuracy.

[0044] During the process of the heavy hammer 14 hitting the boss 12, the scale value on the probe rod 11 is used to observe in real time whether the probe rod 11 has reached the predetermined depth. When the depth of the probe rod 11 reaches the predetermined value, the power member 2 is started, so that the power member 2 drives the heavy hammer 14 to rise. When the distance between the heavy hammer 14 and the limit rod 42 is less than the predetermined value, the reset member 43 causes the one-way sliding member 41 to lose the limiting effect on the probe rod 11, until the heavy hammer 14 abuts against the limit rod 42, the heavy hammer 14 continues to rise and drives the probe rod 11 to leave the foundation through the limit rod 42 during the rising process.

[0045] Reference Figure 1 and Figure 3The power part 2 includes a cross bar 21 fixedly connected to both sides of the weight 14, a movable pulley 22 is sleeved on the cross bar 21 and rotatably cooperates with the cross bar 21, and the bracket 3 is connected to a motor 23, which is located on the side of the weight 14 away from the ground. A rotating shaft 24 is provided at both ends of the motor 23, and a take-up wheel 25 fixedly connected to the rotating shaft 24 is sleeved on the rotating shaft 24. A steel cable 26 is coiled on the take-up wheel 25, and one end of the steel cable 26 passes around the movable pulley 22 and is connected to the bracket 3; a distance sensor 6 is also provided on the side of the limit rod 42 facing the ground, and the distance sensor 6 is electrically connected to the control module 5. After the power part 2 is started, the motor 23 works. During the rotation of the motor 23, the steel cable 26 is wound through the rotating shaft 24 and the take-up wheel 25, so that the weight 14 is moved away from the ground through the winding of the steel cable 26; when the distance between the weight 14 and the boss 12 reaches a predetermined value, the distance sensor 6 sends a signal to the control module 5, and the control module 5 turns off the motor 23, so that the distance between the weight 14 and the boss 12 is the same before each fall, so that the height of the weight 14 falling each time is close to the predetermined value, thereby reducing the error of the detection result.

[0046] Reference Figure 4 and Figure 5 The one-way sliding member 41 includes a limiting ratchet bar 411 connected to the bracket 3, the extending direction of the limiting ratchet bar 411 is perpendicular to the ground, and the ratchet teeth of the limiting ratchet bar 411 are inclined toward the ground along the extending direction of the probe rod 11; a limiting slide groove 414 is also provided on the side of the limiting ratchet bar 411 facing the heavy hammer 14, and the extending direction of the limiting slide groove 414 is perpendicular to the ground, and the end of the limiting rod 42 is slidably connected to the limiting ratchet bar 411 through the limiting slide groove 414.

[0047] Reference Figure 3 and Figure 4 The limit rod 42 is connected to the limit slider 436, and the end of the limit slider 436 facing the ground is connected to the limit slider 437. The end of the limit slider 437 away from the limit slider 436 is hinged to the limit pawl 412. A torsion spring 413 is provided between the limit rod 42 and the limit slider 437. The limit pawl 412 abuts against the limit ratchet bar 411 under the action of the torsion spring 413. After the heavy hammer 14 hits the probe rod 11 through the boss 12, the probe rod 11 moves away from the heavy hammer 14. Since the ratchet teeth of the limit ratchet bar 411 are inclined toward the ground along the extension direction of the probe rod 11, after the heavy hammer 14 is separated from the boss 12, the limit pawl 412 abuts against the ratchet teeth of the limit ratchet bar 411, thereby limiting the probe rod 11 and reducing the rise of the probe rod 11 during the detection process.

[0048] Reference Figure 3 and Figure 4The reset member 43 includes a reset slider 431, a reset groove 421 is provided on the side of the limit rod 42 facing the ground, the reset slider 431 is slidably connected to the limit rod 42 through the reset groove 421, the reset slider 431 is connected to a reset cable 432, the end of the reset cable 432 away from the reset slider 431 is connected to the limit pawl 412, and the end of the weight 14 away from the ground is connected to a wedge block 433. When the distance between the weight 14 and the limit rod 42 is less than a predetermined value, the inclined surface of the wedge block 433 and the reset slider 431 are When the distance between the weight 14 and the limiting rod 42 is less than a predetermined value, the inclined surface of the wedge block 433 abuts against the end of the reset slider 431 toward the limiting ratchet 412. At this time, the weight 14 continues to rise. Since the inclined surface of the wedge block 433 abuts against the end of the reset slider 431 toward the limiting ratchet 412, the weight 14 drives the reset slider 431 to move toward the side away from the limiting ratchet 412 during its rise, thereby separating the limiting ratchet 412 from the ratchet teeth of the limiting ratchet bar 411.

[0049] Reference Figure 3 and Figure 4 The reset member 43 further includes a plurality of reset steel balls 434. A reset slideway 422 is provided in the limit rod 42. Both ends of the reset slideway 422 are provided with retaining rings 435. The inner ring diameter of the retaining rings 435 is smaller than the diameter of the reset steel balls 434. The plurality of reset steel balls 434 are located in the reset slideway 422. Both ends of the reset slideway 422 penetrate the outer wall of the limit rod 42 on one side facing the weight 14. A portion of the reset steel balls 434 is exposed from one end of the reset slideway 422. The limiting slider 436 is slidably connected to the limiting rod 42 through the other end of the reset slide 422 and the sliding direction is perpendicular to the ground. The side of the limiting slider 436 facing the ground is connected with an elastic member 438. The elastic member 438 in the embodiment of the present application is a spring, and the other end of the spring is connected to the retaining ring 435; the limiting slider 437 extends out of the reset slide 422 through the inner ring of the retaining ring 435, and the limiting slider 437 extends out of the reset slide 422 and is hinged with the limiting pawl 412. When the distance between the weight 14 and the limiting rod 42 is less than a predetermined value, the weight 14 and the reset steel ball 434 are abutted by the exposed end of the reset slide 422.

[0050] The reset stop ring 435 limits the reset steel ball 434 located in the reset slide 422. At the same time, under normal conditions, the spring generates an action force on the reset steel ball 434 located at the other end of the reset slide 422 through the limit slider 436, so that the reset steel ball 434 is exposed from one end of the reset slide 422 through the stop ring 435. When the distance between the weight 14 and the limit rod 42 is less than a predetermined value, the weight 14 abuts against the end of the reset steel ball 434 exposed from the reset slide 422, and the weight 14 continues to rise. During the rising process, the weight 14 squeezes the reset steel ball 434 in the reset slide 422, so that the reset steel ball 434 overcomes the action force from the spring and generates downward pressure on the limit pawl 412. After the limit pawl 412 moves downward, a gap is generated between the limit pawl 412 and the ratchet teeth of the limit ratchet bar 411, thereby reducing the friction force to be overcome when the limit pawl 412 is separated from the ratchet teeth of the limit ratchet bar 411.

[0051] The implementation principle of a foundation bearing capacity detection device in an embodiment of the present application is as follows: when performing the detection, the detection device is placed on the ground so that the probe rod 11 contacts the ground, and then the power piece 2 is opened through the control module 5, so that the power piece 2 drives the heavy hammer 14 to move along the extension direction of the probe rod 11 in a direction away from the ground, and then the power piece 2 is closed, so that the heavy hammer 14 moves along the extension direction of the probe rod 11 in a direction close to the boss 12 by gravity, thereby knocking the probe rod 11 through the boss 12; after the knocking is completed, the power piece 2 is started again, so that the power piece 2 drives the heavy hammer 14 to move along the extension direction of the probe rod 11 in a direction away from the ground, at this time, the limiting pawl 412 abuts against the ratchet teeth of the limiting ratchet bar 411, thereby limiting the probe rod 11 and reducing the probe rod. 11 rises during the detection process, thereby reducing the influence of the rise of the probe rod 11 on the detection accuracy; when the weight 14 rises to a predetermined height, the power piece 2 is closed, and the weight 14 falls again, and the weight 14 causes the probe rod 11 to continuously move toward the ground during multiple rises and falls; when the depth of the probe rod 11 reaches a predetermined value, the power piece 2 is started, so that the power piece 2 drives the weight 14 to rise, and when the distance between the weight 14 and the limit rod 42 is less than a predetermined value, the reset piece 43 causes the limit pawl 412 to move away from the limit ratchet bar 411, thereby separating the limit pawl 412 from the ratchet teeth of the limit ratchet bar 411, and after the weight 14 abuts against the limit rod 42, the weight 14 drives the probe rod 11 to leave the foundation through the limit rod 42 during the rise.

[0052] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A foundation bearing capacity detection device, characterized in that: include: A detection assembly (1), the detection assembly (1) comprising a probe rod (11), the probe rod (11) extending in a direction perpendicular to the ground, the end of the probe rod (11) facing away from the ground being connected to a boss (12), the end of the boss (12) facing away from the probe rod (11) being provided with a hammer rod (13), the hammer rod (13) extending in a direction perpendicular to the ground, a weight (14) slidably connected to the outer periphery of the hammer rod (13), the weight (14) being connected to a power member (2) for driving the weight (14) to move upward along the extending direction of the probe rod (11); A bracket (3), the bracket (3) being placed on a foundation surface, the bracket (3) being connected to a control module (5), the power member (2) being connected to the bracket (3), the probe rod (11) being slidably connected to the bracket (3), and the power member (2) being electrically connected to the control module (5); A limit assembly (4), the limit assembly (4) comprising a one-way sliding member (41), the one-way sliding member (41) being connected to the bracket (3), and after the weight (14) falls due to gravity, the one-way sliding member (41) is used to limit the movement of the probe rod (11) in a direction away from the ground; when the power member (2) drives the weight (14) to move upward until the distance between the weight (14) and the limit rod (42) is less than a predetermined value, the one-way sliding member (41) loses its limiting effect on the probe rod (11); The one-way sliding member (41) comprises a limit ratchet bar (411) connected to the bracket (3), the ratchet teeth of the limit ratchet bar (411) being inclined toward the ground along the extension direction of the probe rod (11); the end of the hammer rod (13) facing away from the ground is connected to a limit rod (42), the limit rod (42) is hinged to a limit pawl (412), a torsion spring (413) is provided between the limit rod (42) and the limit pawl (412), and the limit pawl (412) is in contact with the limit ratchet bar (411) under the action of the torsion spring (413); The limiting assembly (4) further comprises a reset member (43), the reset member (43) being connected to the limiting pawl (412), and when the distance between the weight (14) and the limiting rod (42) is less than a predetermined value, the reset member (43) causes the limiting pawl (412) to move in a direction away from the limiting ratchet bar (411); the reset member (43) comprises a reset slider (431), a reset groove (421) is provided on a side of the limiting rod (42) facing the ground, and the reset slider (431) is slidably connected to the limiting rod (42) via the reset groove (421); the reset slider (431) A reset cable (432) is connected, and one end of the reset cable (432) facing away from the reset slider (431) is connected to the limit pawl (412); one end of the weight (14) facing away from the ground is connected to a wedge block (433); when the distance between the weight (14) and the limit rod (42) is less than a predetermined value, the inclined surface of the wedge block (433) abuts against one end of the reset slider (431) facing the limit pawl (412); the reset member (43) comprises a plurality of reset steel balls (434); a reset slideway (422) is provided in the limit rod (42); and the plurality of reset steel balls (434) are arranged on the reset slideway (422). 4) is located in the reset slide (422), both ends of the reset slide (422) penetrate the outer wall of the limit rod (42) facing the weight (14), and under normal conditions, a portion of the reset steel ball (434) is exposed from one end of the reset slide (422); the limit pawl (412) is slidably connected to the limit rod (42) through the other end of the reset slide (422), and the sliding direction is perpendicular to the ground. When the distance between the weight (14) and the limit rod (42) is less than a predetermined value, the weight (14) and the reset steel ball (434) are in contact with the end exposed from the reset slide (422); the reset slide ( A retaining ring (435) is provided at the end of the retaining ring (422), and the inner ring diameter of the retaining ring (435) is smaller than the diameter of the reset steel ball (434); a limiting slider (436) is provided in the reset slideway (422), and the end of the limiting slider (436) facing the ground is also connected to an elastic member (438), and the end of the elastic member (438) away from the slider is in contact with the retaining ring (435), and the end of the limiting slider (436) facing the retaining ring (435) is also connected to a limiting slide rod (437), and the end of the limiting slide rod (437) away from the limiting slider (436) is hinged to the limiting pawl (412).

2. A foundation bearing capacity detection device according to claim 1, characterized in that: A distance sensor (6) opposite to the weight (14) is also provided on the side of the limit rod (42) facing the ground, and the distance sensor (6) is electrically connected to the control module (5).

3. A foundation bearing capacity detection device according to claim 1, characterized in that: The power member (2) comprises a cross bar (21) located on both sides of the weight (14), a movable pulley (22) rotatably matched with the cross bar (21) is sleeved on the cross bar (21), the bracket (3) is connected to a motor (23), the motor (23) is located on the side of the weight (14) away from the ground, both ends of the motor (23) are provided with a rotating shaft (24), the rotating shaft (24) is sleeved with a take-up wheel (25) fixedly connected to the rotating shaft (24), a steel cable (26) is coiled on the take-up wheel (25), one end of the steel cable (26) is passed around the movable pulley (22) and is connected to the bracket (3).

4. A foundation bearing capacity detection device according to claim 1, characterized in that: The side surface of the probe rod (11) is provided with scales.

Images