A building foundation site soil layer detection device

Abstract

The application relates to the field of building construction equipment, and discloses a building foundation site soil layer detection device which comprises a crawler chassis composed of a mounting frame and a crawler module, support legs and a light power sounding module are arranged at the upper and lower ends of the mounting frame respectively, the support leg comprises a telescopic mechanism screwed at the bottom end of the mounting frame, a cross plate module is arranged in the telescopic mechanism, a torsion output module is arranged at the top end of the telescopic mechanism, and the torsion output module is connected with the cross plate module; the light power sounding module comprises a sounding rod penetrating through the mounting frame and an impact module, the cross plate module installed in the support leg cooperates with the torsion output module, the support leg is pressed into the soil layer through the gravity of the cross plate module, the detection device is fixedly supported, the purpose of simultaneously performing a shearing test on the soil layer is achieved, the detection on the bearing capacity of the foundation soil layer is completed through the light power sounding module, soil samples at different depths are collected, and the detection on the density of the soil layer at different depths is realized.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building construction equipment, in particular to a building foundation site soil layer detection device. BACKGROUND

[0002] From the perspective of site construction, a foundation can be divided into a natural foundation and an artificial foundation. The foundation is a rock-soil bearing stratum under the foundation. The natural foundation is a natural soil layer which can meet the requirement of bearing the entire load of the foundation in a natural state and does not need to be reinforced by people, saves engineering cost and does not need to be artificially treated. The natural foundation is a natural soil layer which can directly place the foundation without needing to treat the foundation. When the geological condition of the soil layer is good and the bearing capacity is strong, the natural foundation can be used. When the geological condition is poor, such as a slope, sandy land or silt land, or although the soil layer is good in quality, the upper load is too large, the artificial reinforced foundation needs to be used so that the foundation has sufficient bearing capacity. In order to ensure the stability and structural strength of the building, the soil layer of the foundation needs to be sampled and analyzed. In the prior art, the soil layer sampling is mainly achieved by manual excavation. The manual excavation cannot guarantee that the sampled soil is from the target depth of the soil layer. Then the soil is sent to a laboratory for detection. The detection process is time-consuming and even sometimes the test result is completely inconsistent with the site. Therefore, the accurate and reliable description of the site soil layer state is very important. SUMMARY

[0003] The application aims to provide a building foundation site soil layer detection device which can press the support leg into the soil layer by the gravity of the cross plate module installed in the support leg and cooperated with the torsion output module, fix the support detection device and simultaneously realize the shear test of the soil layer, complete the detection of the bearing capacity of the foundation soil layer and collect the soil samples at different depths by the light power sounding module, and realize the detection of the density of the soil layer at different depths, so as to solve the problems in the background technology.

[0004] To achieve the above object, the application is implemented by the following technical scheme: a building foundation site soil layer detection device which comprises a crawler chassis composed of a mounting frame and a crawler module, a support leg and a light power sounding module are arranged at the upper and lower ends of the mounting frame respectively, the support leg comprises a telescopic mechanism screwed at the bottom end of the mounting frame, a cross plate module is arranged in the telescopic mechanism, a torsion output module is arranged at the top end of the telescopic mechanism, and the torsion output module is connected with the cross plate module; the light power sounding module comprises a sounding rod penetrating through the mounting frame and an impact module.

[0005] Preferably, the crawler module has two and is arranged in parallel, the crawler modules are connected through a rotating shaft, and the mounting frame is arranged between the crawler modules.

[0006] Preferably, the top end surface of the mounting frame is provided with a hydraulic module; the telescopic mechanism comprises a hydraulic valve, which is arranged in the mounting frame and has a bottom end coplanar with the bottom end of the mounting frame, and is in communication with the hydraulic module through a pipeline; the telescopic mechanism further comprises a telescopic outer cylinder, which is hollow inside, and has an inlet and outlet pipe opening in communication with the hydraulic valve at the top end; the telescopic mechanism further comprises a telescopic inner cylinder coaxial with the telescopic outer cylinder, which is in sliding fit with the telescopic outer cylinder; a plurality of telescopic rods are arranged in the telescopic outer cylinder, one end of each telescopic rod being connected with the telescopic inner cylinder; and a supporting pad is arranged at the end of the telescopic outer cylinder away from the hydraulic valve.

[0007] Preferably, one end of the telescopic inner cylinder is provided with a quadrangular pyramid, which comprises four conical surface plates hinged to the telescopic inner cylinder, and a flexible push rod is arranged outside each conical surface plate, and the flexible push rod is hinged to the telescopic rod.

[0008] Preferably, the cross plate module comprises a hydraulic column penetrating through the telescopic inner cylinder, one end of the hydraulic column being provided with a cross plate, and the other end of the hydraulic column being connected with a torsion output module, the torsion output module being provided with a torsion sensor at the top end, and the torsion output module being provided with a pipe opening in communication with the hydraulic valve at the outer side.

[0009] Preferably, the top end of the mounting frame is provided with a control module, the control module and the hydraulic module being arranged on both sides of the light power sounding module, a through hole penetrating through the upper and lower end surfaces is arranged in the middle of the mounting frame, a sliding sleeve in sliding fit with the sounding rod is arranged in the through hole, and a conical sounding head is arranged at the bottom end of the sounding rod.

[0010] Preferably, the top end of the sliding sleeve is provided with a displacement sensor connected with the control module, the sliding sleeve comprises a sleeve, and a plurality of connecting plates are arranged on the outer side of the sleeve in the circumferential direction, and the connecting plates are connected with the mounting frame.

[0011] Preferably, the impact module comprises a door-shaped lifting support, which is arranged above the through hole, a limiting plate is arranged at the top end of the lifting support, and a traction hole coaxial with the through hole is arranged in the middle of the limiting plate; the impact module further comprises a winch mechanism arranged at the top end of the lifting support, the winch mechanism comprising a servo motor, a winch cylinder being arranged at the output end of the servo motor, a traction rope penetrating through the traction hole being arranged on the winch cylinder, and a sounding hammer being arranged at the top end of the sounding rod, the sounding hammer being connected with the traction rope through a connecting rod, and a hammer pad being arranged at the top end of the sounding rod in cooperation with the sounding hammer.

[0012] Preferably, a receiving piece is arranged in the middle of the sounding rod, the receiving piece being screwed with the sounding rod, the receiving piece being hollow inside, and an air hole in communication with the outside being arranged at the top end of the receiving piece; a sounding rod cylinder is screwed with the receiving piece at the lower end, the sounding rod cylinder being hollow inside, at least one connecting rod being arranged at the bottom end of the sounding rod cylinder, and a probe being arranged at one end of the connecting rod.

[0013] Preferably, the probe rod is provided with a probe head at one end, the probe head is conical, a touch probe hydraulic valve in communication with the hydraulic module is arranged in the middle of the probe rod, and the probe rod further comprises a probe rod barrel, the probe rod barrel is hollow, a collection barrel is arranged in the probe rod barrel in sliding fit, the collection barrel is in the shape of a door, a pressure bearing rod in sliding fit with the collection barrel is arranged at the top of the probe rod barrel, and the inner diameter of the collection barrel is the same as the maximum radius of the probe head.

[0014] The present application has the following beneficial effects over the prior art:

[0015] 1. The support legs are used to fix the track chassis and level the mounting frame, so that the horizontal state of the mounting frame is maintained;

[0016] 2. The hydraulic module is used to provide pressure for the support legs, control the extension and shortening of the telescopic mechanism of the support legs, and press the telescopic inner barrel into the ground by the weight of the track chassis through the four-pronged cone arranged on the telescopic inner barrel, so that the stability of the support legs is enhanced;

[0017] 3. The hydraulic module is used to drive the cross plate module into the soil layer through the telescopic inner barrel, then drive the cross module to rotate through the torsion output module, and send the torsion data to the control module for processing and analysis through the torsion sensor, so that the track support is supported and the soil torsion shear force is measured.

[0018] 4. The mounting frame is leveled by the support legs, so that the axis of the through hole is always along the vertical line, the bearing capacity of the foundation soil is detected by the light power touch probe module, the probe rod of the light power touch probe module is hollow, the soil is collected while the probe rod penetrates into the soil layer, and the soil density of the soil layer at different depths is measured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the axial view of the detection device of the present application;

[0020] Figure 2 It is the front view of the track chassis of the present application;

[0021] Figure 3 It is the bottom view of the track chassis of the present application;

[0022] Figure 4 It is the top view of the track chassis of the present application;

[0023] Figure 5 It is the axial view of the support leg of the present application;

[0024] Figure 6 It is the axial view of the telescopic outer barrel of the present application;

[0025] Figure 7 It is the sectional view of the telescopic outer barrel of the present application;

[0026] Figure 8 Schematic diagram of the four-pyramid of the present application;

[0027] Figure 9 Schematic diagram of the end light power sounding module of the present application;

[0028] Figure 10 Axonometric view of one of the sounding rods of the present application;

[0029] Figure 11 Sectional view of one of the sounding rods of the present application;

[0030] Figure 12 Axonometric view of another of the sounding rods of the present application;

[0031] Figure 13 Sectional view of another of the sounding rods of the present application.

[0032] In the figure: tracked chassis 1, support leg 2, torsion output module 201, torsion sensor 202, hydraulic valve 203, pipe mouth 204, support pad 205, telescopic outer cylinder 206, telescopic inner cylinder 207, telescopic rod 208, four-pyramid 209, hydraulic column 210, cross plate 211, light power sounding module 3, hoisting mechanism 301, traction rope 302, sounding hammer 303, lifting bracket 304, sounding rod 305, sounding rod cylinder 306, probe 307, receiving piece 308, connecting rod 309, pressure-bearing rod 310, collection cylinder 311, mounting rack 4, through hole 401, sliding sleeve 402, tracked module 5, hydraulic module 6, control module 7. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0034] As Figures 1-4 shown, Figure 1 Axonometric view of the detection device of the present application; Figure 2 Front view of the tracked chassis of the present application; Figure 3 Bottom view of the tracked chassis of the present application; Figure 4 Top view of the tracked chassis of the present application;

[0035] The embodiment of the present application provides a kind of building ground field soil layer detection device, including by mounting rack 4 and tracked module 5 tracked chassis 1, support leg 2 and light power sounding module 3 are respectively arranged on the upper and lower ends of mounting rack 4, support leg 2 includes telescopic mechanism of screwing in the bottom end of mounting rack 4, cross plate module is arranged in telescopic mechanism, torsion output module 201 is arranged in the top of telescopic mechanism, and torsion output module 201 is connected with cross plate module;Light power sounding module 3 includes sounding rod 305 and impact module penetrating mounting rack 4.

[0036] There are two track modules 5 arranged in parallel. The track modules 5 are connected by a rotating shaft. The mounting bracket 4 is installed between the track modules 5. The track module 5 includes a drive motor and a track. The output end of the drive motor is provided with a drive wheel. The drive wheel meshes with the track. There are two drive wheels. A battery connected to the drive wheel is provided between the drive wheels. The battery provides voltage to the drive wheel and drives the drive wheel to work, so as to drive the track.

[0037] It is understood that in this embodiment, the support leg 2 includes a telescopic mechanism screwed to the bottom of the mounting frame 4. A cross plate module is provided inside the telescopic mechanism, and a torque output module 201 is provided at the top of the telescopic mechanism. The torque output module 201 is connected to the cross plate module. Under the above structure, the support leg 2 lifts and levels the mounting frame 4 through the telescopic mechanism when the track module 5 runs to the detection point, thereby providing a flat working platform for the lightweight power probe module 3 to work.

[0038] like Figures 5-8 As shown, Figure 5 This is an isometric view of the supporting leg of the present invention; Figure 6 This is an isometric view of the telescopic outer cylinder of the present invention; Figure 7 This is a cross-sectional view of the telescopic outer cylinder of the present invention; Figure 8 This is a schematic diagram of the quadrangular pyramid of the present invention;

[0039] In one embodiment, a hydraulic module 6 is provided on the top surface of the mounting frame 4; the telescopic mechanism includes a hydraulic valve 203, which is located inside the mounting frame 4 and has its bottom end coplanar with the bottom end of the mounting frame 4. The hydraulic valve 203 is connected to the hydraulic module 6 through a pipe. It also includes a telescopic outer cylinder 206, which is hollow inside. The top of the telescopic outer cylinder 206 is provided with an inlet and outlet pipe that communicates with the hydraulic valve 206. It also includes a telescopic inner cylinder 207 coaxial with the telescopic outer cylinder 206. The telescopic inner cylinder 207 is slidably engaged with the telescopic outer cylinder 206. Multiple telescopic rods 208 are provided inside the telescopic outer cylinder 206. One end of the telescopic rod 208 is connected to the telescopic inner cylinder 207. It also includes a support pad 205, which is installed on the end of the telescopic outer cylinder 206 away from the hydraulic valve 203.

[0040] It can be understood that in the present embodiment, the top end surface of the mounting frame 4 is provided with a hydraulic module 6; the telescopic mechanism includes a hydraulic valve 203, which is arranged in the mounting frame 4 and coplanar with the bottom end of the mounting frame 4, the hydraulic valve 203 is communicated with the hydraulic module 6 through a pipeline, further includes a telescopic outer cylinder 206, the telescopic outer cylinder 206 is hollow inside, the telescopic outer cylinder 206 is provided with an inlet and outlet pipe at the top end, which is communicated with the hydraulic valve 206, further includes a telescopic inner cylinder 207 coaxial with the telescopic outer cylinder 206, the telescopic inner cylinder 207 is in sliding fit with the telescopic outer cylinder 206, a plurality of telescopic rods 208 are arranged in the telescopic outer cylinder 206, one end of the telescopic rod 208 is connected with the telescopic inner cylinder 207, further includes a supporting pad 205, which is installed at the end of the telescopic outer cylinder 206 away from the hydraulic valve 203, the top end of the telescopic rod 208 is provided with an annular push plate, which is in sliding fit with the telescopic outer cylinder 206, under the above structure, the position of the annular push plate is controlled by the hydraulic module 6, and then the telescopic rod 208 is controlled to extend or retract from the telescopic outer cylinder 206, so as to control the telescopic inner cylinder 207 and realize the support and leveling of the mounting frame 4.

[0041] As shown in Figure 6 , in the present embodiment, one end of the telescopic inner cylinder 207 is provided with a four-prism pyramid 209, the four-prism pyramid 209 includes four conical surface plates hinged with the telescopic inner cylinder 207, a flexible push rod is arranged outside each conical surface plate, and the flexible push rod is hinged with the telescopic rod 208, it can be understood that when the soil shear capacity needs to be detected, the telescopic inner cylinder 207 is conveniently inserted into the soil layer through the four-prism pyramid 209 installed on the telescopic inner cylinder 207, that is, the telescopic inner cylinder 207 of the telescopic mechanism is extended from the telescopic outer cylinder 206 by the hydraulic module 6, and then the telescopic inner cylinder 207 is pressed into the soil layer by the weight of the track module 5 and the mounting frame 4 and combined with the four-prism pyramid 207, so as to realize the support of the mounting frame 4 and the purpose of placing the cross plate module into the deep soil layer.

[0042] As shown in Figures 7-8 , in the present embodiment, the cross plate module includes a hydraulic column 210 penetrating through the telescopic inner cylinder 207, one end of the hydraulic column 210 is installed with a cross plate 211, the other end of the hydraulic column 210 is connected with a torsion output module 201, a torsion sensor 202 is arranged at the top end of the torsion output module 201, and a pipe 204 is arranged outside the torsion output module 201, which is communicated with the hydraulic valve 203;

[0043] It can be understood that the cross plate module includes a hydraulic column 210 penetrating the telescopic inner cylinder 207, one end of the hydraulic column 210 is provided with a cross plate 211, the other end of the hydraulic column 210 is connected with the torsion output module 201, a torsion sensor 202 is arranged at the top end of the torsion output module 201, a pipe opening 204 for connecting the hydraulic column 210 with the hydraulic valve 203 is arranged on the outer side of the torsion output module 201, a telescopic rod sleeve is welded on the bottom outer side of the telescopic outer cylinder 209 close to the bottom end, a thrust rod in communication with the hydraulic module 6 is arranged in the telescopic rod sleeve, under the above structure, when the telescopic inner cylinder 207 is pressed into the soil layer to a set depth, the hydraulic module 6 removes the hydraulic pressure of the thrust rod in the telescopic rod sleeve, so that the telescopic rod 208 can slide along the axial line of the telescopic rod sleeve, realizing the upward movement of the annular push plate controlled by the hydraulic module 6, driving the telescopic rod 208 to move upward, pulling the conical surface plate of the four-prism cone 209, achieving the purpose of unfolding the conical surface plate, then the hydraulic module 6 drives the hydraulic column 210 to move downward, realizing the slow pressing of the cross plate 211 into the soil layer under the action of static pressure, then the torsion output module 201 works to drive the cross plate 211 to rotate through the hydraulic column 210 by a certain angle, then the torsion sensor 202 collects and uploads the measured data, realizing the completion of the soil layer shear test.

[0044] As Figures 9-11 shown, Figure 9 a schematic view of a light dynamic sounding module according to the present application; Figure 10 a perspective view of a probe rod according to the present application; Figure 11 a sectional view of a probe rod according to the present application;

[0045] In an embodiment, the top end of the mounting frame 4 is provided with a control module 7, the control module 7 and the hydraulic module 6 are arranged on both sides of the light dynamic sounding module 3, a through hole 401 penetrating the upper and lower end faces is arranged in the middle of the mounting frame 4, a sliding sleeve 402 in sliding fit with the probe rod 305 is arranged in the through hole 401, and a conical sounding head is arranged at the bottom end of the probe rod 305.

[0046] The top end of the sliding sleeve 402 is provided with a displacement sensor connected with the control module 7, the sliding sleeve 402 includes a sleeve, further includes a plurality of connecting plates arranged on the outer side of the sleeve in the circumferential direction, and the connecting plates are connected with the mounting frame 4.

[0047] The impact module includes a door-shaped lifting support 304, the lifting support 304 is arranged above the through hole 401, a limiting plate at the top end of the lifting support 304 is provided with a traction hole coaxial with the through hole in the middle, further includes a winch mechanism 301 arranged at the top end of the lifting support 304, the winch mechanism 301 includes a servo motor, a winch drum is arranged at the output end of the servo motor, a traction rope 302 penetrating the traction hole is arranged on the winch drum, further includes a sounding hammer 303, the top end of the sounding hammer 303 is connected with the traction rope 302 through a connecting rod, and a hammer pad matched with the sounding hammer 303 is arranged at the top end of the probe rod 305.

[0048] The middle part of the probe rod 305 is provided with a receiving part 308, which is screwed with the probe rod 305, and the inside of the receiving part 308 is hollow. A gas hole is arranged at the top end of the receiving part 308 and is in communication with the outside. A probe rod cylinder 306 is screwed at the lower end of the receiving part 308, and the inside of the probe rod cylinder 306 is hollow. At least one connecting rod 309 is arranged at the bottom end of the probe rod cylinder 306. A probe 307 is arranged at one end of the connecting rod 309.

[0049] It can be understood that in the embodiment, the control module 7 is arranged at the top end of the mounting frame 4, and the control module 7 and the hydraulic module 6 are arranged on both sides of the light power sounding module 3. A through hole 401 is arranged in the middle part of the mounting frame 4 and penetrates the upper and lower end faces. A sliding sleeve 402 is arranged in the through hole 401 and is in sliding cooperation with the probe rod 305. A conical sounding head is arranged at the bottom end of the probe rod 305. A displacement sensor is arranged at the top end of the sliding sleeve 402 and is connected with the control module 7. The sliding sleeve 402 comprises a sleeve and a plurality of connecting plates arranged on the outer side of the sleeve in the circumferential direction. The connecting plates are connected with the mounting frame 4.

[0050] Under the above structure, in order to ensure the vertical state of the light power sounding module 3, the through hole 401 is arranged in the middle part of the mounting frame 4, and the sliding sleeve 402 is screwed in the through hole 401. The probe rod 305 is placed in the sliding sleeve 402. The hydraulic module 6, the cross plate module, and the light power sounding module 3 are controlled by the control module 7, and the data of the above modules are received and processed.

[0051] The impact module comprises a door-shaped lifting support 304, which is arranged above the through hole 401. A limiting plate is arranged at the top end of the lifting support 304. A traction hole coaxial with the through hole is arranged in the middle part of the limiting plate. A winch mechanism 301 is arranged at the top end of the lifting support 304. The winch mechanism 301 comprises a servo motor. A winch cylinder is arranged at the output end of the servo motor. A traction rope 302 penetrates the traction hole and is arranged on the winch cylinder. A sounding hammer 303 is arranged at the top end of the probe rod 305 and is connected with the traction rope 302 through a connecting rod. A hammer pad is arranged at the top end of the probe rod 305 and is matched with the sounding hammer 303.

[0052] Under the above structure, the working state of the winch mechanism 301 at the top end of the lifting support 304 is controlled by the control module 7. The winch mechanism 301 lifts the sounding hammer 303 to a certain height and then drops it. The sounding hammer 303 hits the hammer pad to make the probe rod 304 move downward, and the probe rod 304 is knocked into the soil.

[0053] The middle part of the probe rod 305 is provided with a receiving part 308, the receiving part 308 is screwed with the probe rod 305, the receiving part 308 is hollow inside, the top end of the receiving part 308 is provided with a gas hole in communication with the outside; the lower end of the receiving part 308 is screwed with a probe rod cylinder 306, the probe rod cylinder 306 is hollow inside, the bottom end of the probe rod cylinder 306 is provided with at least one connecting rod 309, one end of the connecting rod 309 is provided with a probe head 307, the probe rod cylinder 306 is composed of a plurality of cylinder rings which are screwed with each other;

[0054] Under the above structure, when the probe rod 303 is hammered into the soil layer by the sounding hammer 303, if the probe rod 303 is deeply inserted into the soil layer so that the sounding hammer 303 cannot continue to work, the receiving part 308 is lifted upwards, then one end of a new probe rod 303 is screwed with the probe rod 303 deeply inserted into the soil layer, the other end is screwed with the receiving part 308, then the hammering is repeated until the probe rod 303 reaches the set depth, when the probe rod 303 is hammered into the soil layer by the sounding hammer 303, the soil in the soil layer enters the probe rod cylinder 306 through the gaps between the connecting rods 309, the probe rod cylinder 306 is filled, after the light dynamic sounding detection is completed, the probe rod cylinder 306 is pulled out by the winch mechanism 301, then the soil area in the probe rod cylinder 306 is measured, the measurement of the soil density at different depths is realized.

[0055] As shown in Figures 12-13 , as shown in Figure 12 , the shaft drawing of another probe rod of the application; Figure 13 , the sectional view of another probe rod of the application.

[0056] In one embodiment, one end of the probe rod 305 is provided with a probe head 307, the probe head 307 is conical, the middle part of the probe rod 305 is provided with a sounding hydraulic valve in communication with the hydraulic module 6, the probe rod 305 further comprises a probe rod cylinder 306, the probe rod cylinder 306 is hollow, a collecting cylinder 311 is arranged in the probe rod cylinder 306, the collecting cylinder 311 is in sliding fit with the probe rod cylinder 306, the cross section of the collecting cylinder 311 is in the shape of a door, a pressure bearing rod 310 is arranged in the top end of the probe rod cylinder 306 in sliding fit with the collecting cylinder 311, the inner diameter of the collecting cylinder 311 is the same as the maximum radius of the probe head 307.

[0057] It can be understood that the top end of the probe 307 is provided with a sealing cover, the sealing cover is in an inclined state, the both ends of the pressure bearing rod 310 are provided with through holes in communication with the hydraulic module 6, the position of the collection cylinder 311 is controlled by adjusting the pressure difference between the inside and outside of the collection cylinder 311, the bottom end of the collection cylinder 311 is provided with an inclined blade convenient for cutting into the soil, the inclined square of the inclined blade cooperates with the inclined direction of the sealing cover to make the bottom end surface of the sealing cover smooth before the collection cylinder 311 is stretched out of the probe rod cylinder 306; when the light dynamic sounding test is completed, the collection cylinder 311 is stretched downward by adjusting the pressure difference between the inside and outside of the area surrounded by the collection cylinder 311 and the sealing cover through the hydraulic module 6, the inclined blade at the bottom end of the collection cylinder 311 is convenient for inserting into the soil layer until the collection cylinder 311 is completely stretched out of the probe rod cylinder 311, then the probe rod cylinder 306 is pulled out through the winch mechanism 301, then the soil area in the probe rod cylinder 306 is measured, and the interference on the light dynamic sounding detection is reduced while the measurement of the soil density is realized.

[0058] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A building foundation site soil detection device, comprising a crawler chassis composed of a mounting frame and a crawler module, support legs and a light power sounding module are respectively arranged at the upper and lower ends of the mounting frame, characterized in that: The support leg comprises a telescopic mechanism screwed at the bottom end of the mounting frame, a cross plate module arranged in the telescopic mechanism, and a torsion output module arranged at the top end of the telescopic mechanism and connected with the cross plate module. The top end surface of the mounting frame is provided with a hydraulic module. The telescopic mechanism comprises a hydraulic valve arranged in the mounting frame and coplanar with the bottom end of the mounting frame, a pipeline for connecting the hydraulic valve with the hydraulic module, a telescopic outer cylinder, a telescopic inner cylinder coaxial with the telescopic outer cylinder, and a plurality of telescopic rods arranged in the telescopic outer cylinder. The telescopic inner cylinder is provided at one end with a four-pyramid body comprising four conical plates hinged with the telescopic inner cylinder, and a flexible push rod arranged at the outer side of each conical plate and hinged with the telescopic rod.

2. The building foundation field soil layer detecting apparatus according to claim 1, wherein The cross plate module comprises a hydraulic column penetrating through the telescopic inner cylinder, a cross plate arranged at one end of the hydraulic column, a torsion sensor arranged at the top end of the torsion output module, a port for connecting the hydraulic column with the hydraulic valve arranged at the outer side of the torsion output module, a telescopic rod sleeve welded at the bottom outer side of the telescopic outer cylinder close to the bottom end, and a thrust rod arranged in the telescopic rod sleeve and connected with the hydraulic module.

3. The building foundation site soil layer detecting apparatus according to claim 1, wherein: The mounting frame is installed between the two parallel track modules and connected through the rotating shaft.

4. The building foundation site soil layer detecting apparatus according to claim 3, wherein: The top end of the mounting frame is provided with a control module, and the control module and the hydraulic module are arranged on both sides of the light power sounding module.

5. The building foundation site soil layer detecting apparatus according to claim 4, wherein: The top end of the sliding sleeve is provided with a displacement sensor connected with the control module, and the sliding sleeve comprises a sleeve and a plurality of connecting plates arranged circumferentially on the outer side of the sleeve and connected with the mounting frame. The impact module comprises a door-shaped lifting support arranged above the through hole, a traction hole coaxial with the through hole arranged in the middle of the limiting plate at the top end of the lifting support, a winch mechanism arranged at the top end of the lifting support, the winch mechanism comprising a servo motor, a winch cylinder arranged at the output end of the servo motor, a traction rope penetrating through the traction hole, a sounding hammer, and a hammer pad arranged at the top end of the sounding rod and matched with the sounding hammer.

6. The building foundation site soil layer detecting apparatus according to claim 5, wherein: The middle part of the probe rod is provided with a receiving part, the receiving part is screwed with the probe rod, the receiving part is hollow inside, and a gas hole communicating with the outside is arranged at the top end of the receiving part; a probe rod cylinder is screwed at the lower end of the receiving part, the probe rod cylinder is hollow inside, at least one connecting rod is arranged at the bottom end of the probe rod cylinder, and a probe is arranged at one end of the connecting rod.

7. The building foundation site soil layer detecting apparatus according to claim 5, wherein The probe rod is provided with a probe at one end, the probe is conical, a touch-probe hydraulic valve communicating with a hydraulic module is arranged at the middle part of the probe rod, and the probe rod further comprises a probe rod cylinder, the probe rod cylinder is hollow, a collecting cylinder is arranged in the probe rod cylinder and is in sliding fit with the probe rod cylinder, the cross section of the collecting cylinder is in the shape of a door, a pressure bearing rod in sliding fit with the collecting cylinder is arranged at the top end inside the probe rod cylinder, and the inner diameter of the collecting cylinder is the same as the maximum radius of the probe.

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