CN115235812A - Soil layer sampling device for building construction foundation detection - Google Patents

Abstract

The invention discloses a soil layer sampling device for building construction foundation detection, which comprises a positioning plate, supporting components, a pressing component and an excavating component, wherein a box body is arranged on the positioning plate, a plurality of groups of supporting components are arranged on the positioning plate in the circumferential direction of the box body, the supporting components are symmetrical relative to the box body, the pressing component is arranged in the box body, the excavating component is arranged at the bottom of the pressing component, the excavating component is used for crushing and tunneling a soil layer, the sampling component is arranged at the bottom of the excavating component, the sampling component is used for sampling and storing soil layer samples, the excavating component is driven by the pressing component to move downwards, the excavating component can send the sampling component to the ground below a certain depth, and the sampling component can be matched with the excavating component to rotate to collect and store soil samples at a target depth.

Description

A soil layer sampling device for building construction foundation detection

technical field

The invention relates to the technical field of building construction, in particular to a soil layer sampling device for foundation detection of building construction.

Background technique

From the perspective of on-site construction, foundations can be divided into natural foundations and artificial foundations. The foundation is the rock-soil bearing layer under the foundation. A natural foundation is a natural soil layer that can meet all the load requirements of the foundation in a natural state and does not require human reinforcement, which saves engineering costs and does not require manual treatment. A natural foundation is a natural soil layer on which the foundation can be placed directly without the need for foundation treatment. When the geological condition of the soil layer is good and the bearing capacity is strong, the natural foundation can be used; while in the condition of poor geological condition, such as sloping land, sandy land or silt geology, or although the soil layer has good texture, the upper load is too high. When it is large, in order to make the foundation have sufficient bearing capacity, the foundation should be artificially reinforced. In order to ensure the stability and structural strength of the building, it is necessary to sample and analyze the soil layer of the foundation.

In the prior art, soil layer sampling is mainly performed by manual excavation. Manual excavation cannot guarantee that the soil samples obtained are all from the soil layer of the target depth, resulting in inaccurate later experimental data and errors in the judgment of the soil composition of the foundation. It may affect the strength of foundation construction.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a soil layer sampling device for building construction foundation detection, so as to solve the problems raised in the above background technology.

It should be noted in the description of the present invention that the terms "inside", "outside", "upper", "lower", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the product of the invention The orientation or positional relationship that is usually placed in use is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore cannot be understood to limit the present invention. Furthermore, the terms "first", "second", etc. are only used to differentiate the description and should not be construed to indicate or imply relative importance.

The embodiment of the invention discloses a soil layer sampling device for building construction foundation detection, which includes a positioning plate, a support component, a pressing component and an excavation component. A box body is installed on the positioning plate, and the positioning plate is installed around the circumference of the box body. There are several groups of support assemblies, the support assemblies are symmetrical about the box body, the lower pressure components are installed in the box, and the excavation components are installed at the bottom of the lower pressure components. The excavation components are used for crushing and excavating the soil layer. A sampling assembly is provided, and the sampling assembly is used for sampling and storage of soil layer samples.

Preferably, the support assembly includes a support seat, a support plate, a positioning pin and a first connecting rod, the support seat is located at the bottom of the positioning plate, and the positioning plate is provided with a support seat on which a first threaded rod is fixedly installed, and the first threaded rod is fixed on the support seat. The threaded rod is rotatably matched with the hole on the positioning plate, a first connecting rod is rotatably connected between the bottom of the support seat and the support plate, a support plate is arranged through the support plate, and the support plate is inserted into the ground to face the position of the support plate on the ground. limit.

Preferably, a nut is threadedly installed at one end of the first threaded rod away from the support base, and a pair of spacers are arranged between the nut and the positioning plate. A first spring is provided, and the first spring is rotatably matched with the first threaded rod.

Preferably, the pressing down assembly includes a first telescopic rod and a push plate, the first telescopic rod is installed on the top of the box body, the side of the first telescopic rod away from the top of the box body is connected to the push plate, and the push plate is connected to the push plate. Guide plates are installed on both sides, and the guide plates are slidably matched with the box body. A guide sleeve is installed on both sides of the top of the first telescopic rod. A guide rod is installed on the push plate. Bottom mounted excavation assembly.

Preferably, the upper side of the box body is provided with a through groove, the two sides of the through groove are provided with scale lines, the through groove is slidably fitted with a bump, the bump is installed on the push plate, and the bottom of the box body is provided with a through hole, A flexible corrugated pipe is connected between the through hole and the bottom of the push plate.

Preferably, the cross section of the bump is rhombus.

Preferably, the excavation assembly includes a first limit sleeve, a mounting disc, a drill rod and a helical blade, the first limit sleeve is installed on the bottom of the push plate, and the bottom of the push plate is installed with a second limit The second limit sleeve is located inside the first limit sleeve and coincides with the axis of the first limit sleeve. The installation disc is installed with a rotating shaft, and the rotating shaft is installed away from one end of the installation disc. The limit disk is installed in the second limit sleeve in rotation, and the side of the first limit sleeve close to the installation disk is embedded with a metal washer, and the metal washer rotates with the first limit sleeve Matching, a circular slider is slidably fitted in the second limit sleeve, a second spring is connected between the circular slider and the push plate, and a drive assembly is arranged in the first limit sleeve, and the drive assembly is used for The rotating shaft is driven to rotate, a drill rod is installed on the bottom of the installation disc, and a helical blade is installed on the outer side of the drill rod.

Preferably, the drive assembly includes a first motor, a drive gear and a gear ring, the first motor is mounted on the push plate, the output end of the first motor is mounted with a drive gear, the gear ring is mounted on the rotating shaft, the The driving gear is in cooperation with the ring gear transmission.

Preferably, the bottom of the drill rod is provided with an installation hole, a telescopic assembly is installed in the installation hole, a sampling assembly is installed at the bottom of the telescopic assembly, and the telescopic assembly is used to provide the extension and retraction of the sampling assembly in the installation hole. driving force.

Preferably, the telescopic assembly includes a second motor, a third threaded rod, an internally threaded sleeve and a mounting plate, the second motor is mounted on the top of the mounting hole, and the output end of the second motor is mounted with a third thread A rod, an internal threaded sleeve is fixedly installed on the mounting plate, and the third threaded rod is threadedly matched with the internal threaded sleeve. There are sliding grooves on both sides of the mounting hole, and sliding blocks are installed on both sides of the mounting plate, and the sliding blocks slide Fitted in the chute, a sampling assembly is installed at the bottom of the mounting plate, a sealing ring is installed at the bottom of the installation hole, and a sampling assembly is slidably fitted in the sealing ring.

Preferably, the sampling assembly includes a sampling cylinder, a second telescopic rod and a sampling box, the sampling cylinder is installed at the bottom of the mounting plate, a partition plate is fixedly installed in the first fixing block, and a second telescopic rod is installed at the top of the sampling cylinder The free end of the second telescopic rod is in sliding fit with the partition plate. Several groups of first fixing blocks are circumferentially installed on the bottom of the second telescopic rod. The inner vertical lift, the bottom side of the sampling cylinder even has several groups of opening grooves, the sampling box is fixedly installed with a rotating pin, the rotating pin is rotatably installed on the top of the opening groove, and the sampling box is located in a part of the sampling cylinder. A second fixing block is installed on the side, and the first fixing block and the second fixing block are rotatably connected by a second connecting rod, and the telescopic action of the second telescopic rod is matched with the rotating connection of the second connecting rod.

Preferably, the opening of the sampling box faces a horizontal direction.

Preferably, a control module is installed in the first telescopic rod, the control module includes a signal receiving module and an adjustment module, and the signal receiving module is used to receive an instruction sent by the mobile terminal and send the instruction to the adjustment module, the adjustment module is connected with the terminals of the first telescopic rod, the first motor, the second motor and the second telescopic rod, and the adjustment module is used to control the first telescopic rod, the first motor, the second motor and the second telescopic rod On/off between the lever and the power supply.

Compared with the prior art, the excavation assembly is driven to move down the ground by the pressing down assembly, so that the excavation assembly can send the sampling assembly to a certain depth below the ground. The soil samples at the target depth were collected and stored.

Description of drawings

FIG. 1 is a schematic diagram of a soil layer sampling device for testing foundations of building construction according to the present invention.

Fig. 2 is a schematic diagram of a box in a soil layer sampling device for building construction foundation detection according to the present invention.

FIG. 3 is a schematic diagram of area A in a soil layer sampling device for building construction foundation detection according to the present invention.

FIG. 4 is a schematic cross-sectional view of a drill pipe in a soil layer sampling device for testing a building construction foundation according to the present invention.

FIG. 5 is a schematic diagram of sampling components in a soil layer sampling device for building construction foundation detection according to the present invention.

FIG. 6 is a schematic diagram of a control module in a soil layer sampling device for building construction foundation detection according to the present invention.

Reference number:

1-Positioning plate, 2-Box, 21-Through groove, 22-Scale mark, 23-Through hole, 24-Flexible corrugated pipe, 3-Support assembly, 31-Support seat, 32-Support plate, 33-Positioning pin , 34-first connecting rod, 35-first threaded rod, 36-nut, 37-washer, 38-first spring, 4-pressing assembly, 41-first telescopic rod, 42-push plate, 43- Guide plate, 44-Guide sleeve, 45-Guide rod, 46-Bump, 5-Excavation assembly, 51-First limit sleeve, 52-Installation disc, 53-Second limit sleeve, 54- Rotating shaft, 55-drill rod, 56-spiral blade, 57-circular slider, 58-second spring, 59-metal washer, 6-drive assembly, 61-first motor, 62-drive gear, 63-tooth Ring, 7-Mounting hole, 8-Telescopic assembly, 81-Second motor, 82-Chute, 83-Third threaded rod, 84-Internal thread sleeve, 85-Mounting plate, 86-Sliding block, 87-Sealing Ring, 9-Sampling assembly, 91-Sampling cylinder, 92-Baffle plate, 93-Second telescopic rod, 94-First fixing block, 95-Open slot, 96-Sampling box, 97-Rotating pin, 98-Second Fixed block, 99-second connecting rod, 10-control module, 101-signal receiving module, 102-adjustment module.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

Example

As shown in FIG. 1, a soil layer sampling device for building construction foundation detection includes a positioning plate 1, a support component 3, a pressing component 4 and an excavation component 5. A box body 2 is installed on the positioning plate 1, and the positioning plate 1 Several groups of support components 3 are installed around the box body 2 in the circumferential direction. The support components 3 are symmetrical with respect to the box body 2, which can provide cushioning and support for the positioning plate 1 while ensuring the stability and balance of the positioning plate 1. The box body 2. A pressing component 4 is installed inside, and a digging component 5 is installed at the bottom of the pressing component 4. The pressing component 4 can adjust the lifting and lowering of the digging component 5, so that the digging component 5 moves in the vertical direction relative to the positioning plate 1. The pressing component 4 presses down the rotating excavating component 5, so that the excavating component 5 can be excavated to the ground. The excavating component 5 is used for crushing and excavating the soil layer. The bottom of the excavating component 5 is provided with a sampling component 9. The sampling component 9 is used for For the sampling and storage of soil layer samples, after the excavation assembly 5 is driven to the target depth, the excavation assembly 5 drives the sampling assembly 9 to rotate to sample the soil layer.

The support assembly 3 includes a support seat 31, a support plate 32, a positioning pin 33 and a first connecting rod 34, the support seat 31 is located at the bottom of the positioning plate 1, and the positioning plate 1 is provided with a support seat 31 fixedly mounted on the support seat 31. A threaded rod 35, the first threaded rod 35 is rotatably matched with the hole on the positioning plate 1, a first connecting rod 34 is rotatably connected between the bottom of the support seat 31 and the support plate 32, and the support plate 32 is provided with a support plate 32 therethrough, Inserting the support plate 32 into the ground can limit the position of the support plate 32 on the ground. By adjusting the rotation angle of the first connecting rod 34 relative to the support base 31, the position of the positioning plate 1 on the ground can be leveled so that the positioning plate 1 is parallel to the ground, which can avoid the unevenness of the positioning plate 1 caused by the potholes on the ground, so that the excavation assembly 5 vibrates during the excavation, which is easy to cause damage to the excavation assembly 5. The support assembly 3 symmetrically arranged relative to the box body 2 can be placed on the positioning plate. 1 is supported by the first connecting rod 34 when vibration occurs, so that the positioning plate 1 will not be in danger of overturning.

One end of the first threaded rod 35 away from the support base 31 is threadedly mounted with a nut 36. A pair of spacers 37 are arranged between the nut 36 and the positioning plate 1. A first spring 38 is arranged between the side washers 37, and the first spring 38 rotates and cooperates with the first threaded rod 35. Under the locking action of the threaded rotation of the nut 36 and the first threaded rod 35, the washer 37 is tightly positioned. For the plate 1 and the nut 36, after the positioning plate 1 is vibrated, the first spring 38 can store energy to buffer the shock force, reduce the shaking of the excavation assembly 5 and the box 2, thereby ensuring the stable excavation of the excavation assembly 5.

The push-down assembly 4 includes a first telescopic rod 41 and a push plate 42, the first telescopic rod 41 is installed on the top of the box body 2, and the side of the first telescopic rod 41 away from the top of the box body 2 and the push plate 42 is connected, and guide plates 43 are installed on both sides of the push plate 42. The guide plates 43 are slidably matched with the box body 2, and can push the push plate 42 to slide up and down in the box body 2 without deflection when the first telescopic rod 41 is stretched. Guide sleeves 44 are installed on both sides of the top of the first telescopic rod 41 , and guide rods 45 are installed on the push plate 42 . To provide guidance, the bottom of the push plate 42 is installed with the excavation assembly 5, and under the steady guidance, the downward force can make the excavation assembly 5 perform the excavation operation more stably.

As shown in FIG. 1 and FIG. 2 , a through groove 21 is provided on the upper side of the box body 2 , scale lines 22 are provided on both sides of the through groove 21 , and a convex block 46 is slidably fitted in the through groove 21 , and the convex block 46 is installed on the On the push plate 42 , the excavation depth of the excavation assembly 5 can be reflected by the sliding of the protrusion 46 in the through groove 21 . The bottom of the box body 2 is provided with a through hole 23 , and flexible corrugations are connected between the through hole 23 and the bottom of the push plate 42 . The pipe 24 and the flexible corrugated pipe 24 can prevent the clods from entering the box 2 .

The cross section of the bump 46 is a rhombus, and through the sharp corners on both sides of the rhombus, it is convenient to directly observe and record the scale line 22 corresponding to the bump 46 .

As shown in FIG. 1 and FIG. 3 , the excavation assembly 5 includes a first limit sleeve 51 , a mounting disc 52 , a drill rod 55 and a screw blade 56 , and the first limit sleeve 51 is installed on the push plate 42 The bottom of the push plate 42 is installed with a second limit sleeve 53. The second limit sleeve 53 is located inside the first limit sleeve 51 and coincides with the axis of the first limit sleeve 51. The A rotating shaft 54 is installed on the installation disk 52, and a limit disk is installed at one end of the rotating shaft 54 away from the installation disk 52. The limit disk is rotated and installed in the second limit sleeve 53, and the first limit sleeve 51 A metal washer 59 is embedded in the side close to the installation disc 52 , and the metal washer 59 is rotatably matched with the first limit sleeve 51 , which can reduce the resistance between the installation disc 52 and the first limit sleeve 51 and ensure that the The installation disc 52 is stable and does not deflect during the rotation process. A circular slider 57 is slidably fitted in the second limiting sleeve 53 , and a second spring 58 is connected between the circular slider 57 and the push plate 42 . Under the support of the second spring 58, the circular slider 57 can be closely attached to the limit disc, which can reduce the shaking of the rotating shaft 54. The first limit sleeve 51 is provided with a drive assembly 6, and the drive assembly 6 is used for The rotating shaft 54 is driven to rotate, a drill rod 55 is installed at the bottom of the installation disk 52, and a helical blade 56 is installed on the outer side of the drill rod 55. Under the action of downward pressure, the rotation of the drill pipe 55 and the helical blade 56 can crush the soil layer of the foundation and transport the soil block upward, so that the drill pipe 55 and the helical blade 56 can continuously excavate downward.

The drive assembly 6 includes a first motor 61 , a drive gear 62 and a gear ring 63 , the first motor 61 is mounted on the push plate 42 , the output end of the first motor 61 is mounted with a drive gear 62 , and the gear ring 63 is mounted on the push plate 42 . On the rotating shaft 54 , the driving gear 62 and the gear ring 63 are in driving cooperation, so that the rotation of the first motor 61 can drive the rotating shaft 54 to rotate.

As shown in FIG. 4 , the bottom of the drill rod 55 is provided with an installation hole 7 , a telescopic assembly 8 is installed in the installation hole 7 , a sampling assembly 9 is installed at the bottom of the telescopic assembly 8 , and the telescopic assembly 8 is used for sampling the sampling assembly. 9 Provides driving force in extending and retracting mounting holes 7.

The telescopic assembly 8 includes a second motor 81 , a third threaded rod 83 , an internally threaded sleeve 84 and a mounting plate 85 , the second motor 81 is mounted on the top of the mounting hole 7 , and the output end of the second motor 81 A third threaded rod 83 is installed, an internal threaded sleeve 84 is fixedly installed on the mounting plate 85, the third threaded rod 83 is threadedly matched with the internal threaded sleeve 84, and two sides of the mounting hole 7 are provided with sliding grooves 82, There are sliding blocks 86 installed on both sides of the mounting plate 85. The sliding blocks 86 are slidably fitted in the chute 82, which can provide guidance for the lifting and lowering of the mounting plate 85 in the mounting hole 7. The bottom of the mounting plate 85 is installed with a sampling assembly 9. The plate 85 is retractable up and down in the installation hole 7, and the sampling assembly 9 can be extended out of the installation hole 7 for sampling and retraction. When the assembly 9 is extended, it does not rotate. A sealing ring 87 is installed at the bottom of the mounting hole 7. The sealing ring 87 is slidably fitted with the sampling assembly 9, which can prevent soiling when the sampling assembly 9 does not extend out of the mounting hole 7. The soil block in the layer enters the installation hole 7, and retracts into the installation hole 7 after the sampling assembly 9 collects the soil sample. The sealing ring 87 can prevent soil samples of different depths from being mixed into the sampling assembly 9, so as to ensure the All soil samples were soil samples at the target depth.

As shown in FIGS. 4 and 5 , the sampling assembly 9 includes a sampling cylinder 91 , a second telescopic rod 93 and a sampling box 96 . The sampling cylinder 91 is installed at the bottom of the mounting plate 85 , and is fixedly installed in the first fixing block 94 There is a partition plate 92, a second telescopic rod 93 is installed on the top of the sampling cylinder 91, the free end of the second telescopic rod 93 is slidingly matched with the partition plate 92, and several groups of first fixing blocks are circumferentially installed on the bottom of the second telescopic rod 93 94. The sliding cooperation of the second telescopic rod 93 and the partition plate 92 can ensure that the first fixing block 94 can be vertically lifted and lowered in the sampling cylinder 91. The bottom side of the sampling cylinder 91 even has several groups of opening grooves 95 in the circumferential direction. The sampling box 96 A rotating pin 97 is fixedly installed on the upper surface, and the rotating pin 97 is rotatably installed on the top of the opening slot 95. The sampling box 96 is installed with a second fixing block 98 on the side located in the sampling cylinder 91. The two fixed blocks 98 are rotationally connected by the second connecting rod 99, and the telescopic action of the second telescopic rod 93 cooperates with the rotational connection of the second connecting rod 99, so that the sampling box 96 can be rotated in the opening slot 95, that is, the The sampling box 96 extends out of the sampling cylinder 91 and the sampling box 96 is retracted into the sampling cylinder 91. When the sampling box 96 extends out of the sampling cylinder 91, the rotation of the drill pipe 55 can be used to collect soil samples at the target depth into the sampling box 96. Soil sample collection can be completed by taking it back into the sampling cylinder 91 .

As shown in FIG. 5 , the opening of the sampling box 96 faces the horizontal direction, which prevents soil samples of different depths from falling into the inner side of the sampling box 96 to a certain extent.

As shown in FIG. 1 and FIG. 6 , a control module 10 is installed in the first telescopic rod 41 , and the control module 10 includes a signal receiving module 101 and an adjusting module 102 . The signal receiving module 101 is used for Receive the instruction sent by the mobile terminal and send the instruction to the adjustment module 102. The adjustment module 102 is connected to the terminals of the first telescopic rod 41, the first motor 61, the second motor 81 and the second telescopic rod 93. The adjustment module 102 It is used to control the on-off of the first telescopic rod 41 , the first motor 61 , the second motor 81 and the second telescopic rod 93 and the power supply. After the positioning plate 1 is fixed on the foundation through the support assembly 3 , the command is first sent to the signal receiving The module 101 enables the adjustment module 102 to connect the first telescopic rod 41 and the first motor 61 to the power supply, so that the drill rod 55 and the helical blade 56 rotate while the pressure of the push plate 42 is applied to the foundation soil layer. It is broken and driven downward. By observing the bump 46 and the scale line 22, the depth of the drilling at the bottom of the drill rod 55 can be known. After reaching the predetermined depth, the mobile terminal sends an instruction to the signal receiving module 101, and the adjustment module 102 adjusts the first telescopic rod 41 and the power supply. The connection between the two is disconnected, and the second motor 81 is connected to the power supply at the same time, so that the sampling assembly 9 is pushed out of the mounting hole 7, and the connection between the second motor 81 and the power supply is disconnected after a pause of 10 seconds, and the second telescopic The rod 93 is communicated with the power supply, so that the sampling box 96 is pushed out of the sampling cylinder 91, and the soil sample is collected in coordination with the rotation of the drill rod 55. After the second telescopic rod 93 is connected with the power supply for 10 seconds, the second telescopic rod 93 and the power supply are reversely connected. The connection is reversed, so that the sampling box 96 is retracted into the sampling cylinder 91 to complete the sampling, and the connection between the second motor 81 and the power supply is reversely connected to make the sampling assembly 9 retract into the mounting hole 7, and the first motor 61 and the power supply are disconnected at this time. By connecting the first telescopic rod 41 to the power supply, the excavation assembly 5 is lifted upwards, so as to bring the sampling assembly 9 back to the ground to complete sampling.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

The standard parts used in the present invention can be purchased from the market, the special-shaped parts can be customized according to the description in the specification and the drawings, and the specific connection methods of each part adopt mature bolts, rivets, welding, etc. in the prior art Conventional means, machinery, parts and equipment all adopt conventional models in the prior art, and circuit connections adopt conventional connection methods in the prior art, which will not be described in detail here.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (9)

1. The utility model provides a construction ground detects uses soil layer sampling device, includes locating plate (1), supporting component (3), pushes down subassembly (4) and excavates subassembly (5), its characterized in that, install box (2) on locating plate (1), install a plurality of groups supporting component (3) around box (2) circumference on locating plate (1), supporting component (3) are about box (2) symmetry, install in box (2) and push down subassembly (4), the bottom of pushing down subassembly (4) is installed and is excavated subassembly (5), excavates subassembly (5) and is used for carrying out broken tunnelling to the soil layer, and the bottom of excavating subassembly (5) is provided with sampling component (9), and sampling component (9) are used for the sample and the storage to the soil layer sample, the bottom of excavating subassembly (5) is provided with mounting hole (7), install flexible subassembly (8) in mounting hole (7), sampling component (9) are installed to the bottom of flexible subassembly (8), and flexible subassembly (8) are used for providing drive power in stretching out and withdrawal mounting hole (7) to sampling component (9).

2. The soil layer sampling device for building construction foundation detection according to claim 1, wherein the support assembly (3) comprises a support seat (31), a support plate (32), a positioning pin (33) and a first connecting rod (34), the support seat (31) is located at the bottom of the positioning plate (1), the positioning plate (1) is provided with the first threaded rod (35) fixedly mounted on the support seat (31), the first threaded rod (35) is in rotating fit with a hole in the positioning plate (1), the first connecting rod (34) is rotatably connected between the bottom of the support seat (31) and the support plate (32), the support plate (32) penetrates through the support plate (32), and the position of the support plate (32) on the ground is limited by the insertion of the support plate (32).

3. The soil layer sampling device for building construction foundation detection according to claim 2, wherein a nut (36) is rotatably mounted on one end of the first threaded rod (35) far away from the support seat (31), a pair of gaskets (37) is arranged between the nut (36) and the positioning plate (1), the gaskets (37) are rotatably matched with the first threaded rod (35), a first spring (38) is arranged between the gaskets (37) on two sides, and the first spring (38) is rotatably matched with the first threaded rod (35).

4. The soil layer sampling device for building construction foundation detection of claim 3, wherein the pushing component (4) comprises a first telescopic rod (41) and a push plate (42), the first telescopic rod (41) is installed at the inner top of the box body (2), one side of the first telescopic rod (41) far away from the top of the box body (2) is connected with the push plate (42), guide plates (43) are installed on two sides of the push plate (42), the guide plates (43) are in sliding fit with the box body (2), guide sleeves (44) are installed on two sides of the top of the first telescopic rod (41), guide rods (45) are installed on the push plate (42), the guide rods (45) are in sliding fit with the guide sleeves (44), and the digging component (5) is installed at the bottom of the push plate (42).

5. The soil layer sampling device for detecting the building construction foundation as claimed in claim 4, wherein a through groove (21) is formed in one side of the box body (2), scale marks (22) are formed in two sides of the through groove (21), a convex block (46) is arranged in the through groove (21) in a sliding fit mode, the convex block (46) is installed on the push plate (42), a through hole (23) is formed in the bottom of the box body (2), and a flexible corrugated pipe (24) is connected between the through hole (23) and the bottom of the push plate (42).

6. The soil layer sampling device for building construction foundation detection according to claim 5, wherein the excavating component (5) comprises a first limiting sleeve (51), a mounting disc (52), a drill rod (55) and a helical blade (56), the first limiting sleeve (51) is mounted at the bottom of the push plate (42), a second limiting sleeve (53) is mounted at the bottom of the push plate (42), the second limiting sleeve (53) is located on the inner side of the first limiting sleeve (51) and coincides with the axis of the first limiting sleeve (51), a rotating shaft (54) is mounted on the mounting disc (52), one end of the rotating shaft (54) far away from the mounting disc (52) is mounted with the limiting disc, the limiting disc is rotatably mounted in the second limiting sleeve (53), a metal washer (59) is embedded in one side of the first limiting sleeve (51) close to the mounting disc (52), the metal washer (59) is rotatably fitted with the first limiting sleeve (51), a circular slider (57) is slidably fitted in the second limiting sleeve (53), a second spring (58) is connected between the circular slider (57) and the push plate (42), a driving component (6) is mounted in the driving component (6), and a driving component (54) is mounted in the rotating disc (52), the outer side of the drill rod (55) is provided with a helical blade (56).

7. The soil layer sampling device for building construction ground detects according to claim 6, characterized in that, flexible subassembly (8) includes second motor (81), third threaded rod (83), internal thread sleeve (84) and mounting panel (85), top in mounting hole (7) is installed to second motor (81), third threaded rod (83) is installed to the output of second motor (81), and fixed mounting has internal thread sleeve (84) on mounting panel (85), third threaded rod (83) and internal thread sleeve (84) screw thread normal running fit, both sides are provided with spout (82) in mounting hole (7), and sliding block (86) are installed to mounting panel (85) both sides, and sliding block (86) sliding fit is in spout (82), and sampling component (9) are installed to the bottom of mounting panel (85), sealing ring (87) are installed to the bottom of mounting hole (7), sliding fit has sampling component (9) in sealing ring (87).

8. The soil layer sampling device for construction foundation inspection as recited in claim 7, the sampling component (9) comprises a sampling cylinder (91), a second telescopic rod (93) and a sampling box (96), the sampling cylinder (91) is installed at the bottom of the installation plate (85), the partition plate (92) is fixedly installed in the first fixing block (94), the second telescopic rod (93) is installed at the top in the sampling cylinder (91), the free end of the second telescopic rod (93) is in sliding fit with the partition plate (92), a plurality of groups of first fixing blocks (94) are installed at the periphery of the bottom of the second telescopic rod (93), the second telescopic rod (93) is in sliding fit with the partition plate (92) to ensure that the first fixing block (94) can vertically lift in the sampling cylinder (91), the side surface of the bottom of the sampling cylinder (91) is circumferentially provided with a plurality of groups of open slots (95), the sampling box (96) is fixedly provided with a rotating pin (97), the rotating pin (97) is rotatably arranged at the top in the open slot (95), a second fixing block (98) is arranged on one side of the sampling box (96) positioned in the sampling cylinder (91), the first fixed block (94) is rotationally connected with the second fixed block (98) through a second connecting rod (99), the telescopic action of the second telescopic rod (93) is matched with the rotary connection of the second connecting rod (99).

9. The soil layer sampling device for construction foundation detection as recited in claim 8, wherein an opening of the sampling box (96) is directed in a horizontal direction.

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