A geotechnical detection and soil taking device for house building foundation construction

Abstract

The application relates to the technical field of soil sampling, and discloses a rock-soil detection soil taking device for house building foundation construction, which comprises an outer pipe and an inner pipe, the upper end of the inner pipe is threadedly sleeved with the top end of the outer pipe, a connecting assembly is connected to the inner bottom of the inner pipe, and a power assembly is connected to the inner top of the inner pipe. When sampling, along with the downward movement of the sampling mechanism, the outer pipe effectively selects a certain range of soil columns, and the inner pipe selects the soil columns again. In the process, along with the soil sample entering the inner pipe, the power plug moves upward and drives the protection piece to be pulled out synchronously, so that the protection piece effectively wraps the selected soil sample by moving with the soil sample, the surface of the soil sample does not contact other surfaces, the mutual pollution problem of the layers of the soil sample due to friction contact is avoided, and the representativeness of the sample is effectively improved.

Description

Technical Field

[0001] This application relates to the field of soil sampling technology, and in particular to a soil sampling device for testing soil and rock in building foundation construction. Background Technology

[0002] In building construction, the building's load is transferred to the soil and rock layers of the foundation. If the foundation's bearing capacity is weak, problems such as uneven settlement, tilting, or even collapse can occur. Therefore, soil sampling is an important task during building foundation construction to assess the properties and characteristics of the foundation soil and rock, ensuring the stability and safety of the building structure. Soil sampling requires the use of a sampling device, which includes a sampling tube. Relying on static pressure or impact force, the soil is smoothly cut, allowing the entire soil column to enter the sampling tube, thereby effectively protecting the original structure of the soil.

[0003] However, there are still some defects in the use of soil sampling devices: traditional soil sampling devices mostly adopt the whole-body penetration sampling method. During the collection process, the inner wall of the soil sampling tube first contacts the surface soil and then contacts the deep soil, which makes it easy for soil layers to be contaminated, resulting in a decrease in the representativeness of the sample. Summary of the Invention

[0004] This application proposes a soil sampling device for soil testing in building foundation construction. It has the advantages of effectively preventing interference between soil layers during sampling by designing outer and inner pipes and setting protective components and connecting components inside the inner pipe, thereby improving the representativeness of the sample and solving the problem of easy contamination during sample acquisition.

[0005] To achieve the above objectives, this application adopts the following technical solution: a soil sampling device for soil and rock testing in building foundation construction, comprising:

[0006] An outer pipe fitting and an inner pipe fitting, wherein the upper end of the inner pipe fitting is threadedly connected to the top end of the outer pipe fitting;

[0007] A connecting assembly is provided at the bottom of the inner tube. The connecting assembly includes a connector, a threaded ring, and a pressure ring. The top of the connector has an annular groove, and the connector is movably engaged with the pressure ring through the annular groove.

[0008] A power assembly is provided, wherein the inner top of the inner tube is connected to the power assembly, which includes a power cylinder, a power rod, and a power plug, and the outer wall of the power plug is movably sleeved with the inner wall of the inner tube.

[0009] The open end of the protection piece is located in the ring groove of the connecting piece and is fixed by the compression ring, the inner ring of the compression ring is provided with a storage groove, the folded part of the protection piece is located in the storage groove of the compression ring when the protection piece is not used, the closed end of the protection piece is located outside the ring groove of the connecting piece, and the closed end of the protection piece is provided with a gasket, the bottom end of the power plug is provided with a connecting groove, and the gasket of the protection piece is movably connected with the connecting groove of the power plug.

[0010] When the outer pipe cuts the soil, the soil sample enters the inner pipe, at this time, the power assembly moves up and pulls out the protection piece from the connecting assembly synchronously, so that the protection piece moves with the soil sample to protect the selected soil sample in a wrapped manner.

[0011] Further, the connecting assembly further comprises:

[0012] The cross-sectional shape of the connecting piece is inverted T-shaped, and the outer part of the connecting piece is movably sleeved with the inner wall bottom end of the inner pipe, and the inner ring of the connecting piece is funnel-shaped with the upper part being wide and the lower part being narrow.

[0013] The side wall of the connecting piece and the side wall of the inner pipe are respectively threadedly sleeved with the threaded ring.

[0014] Further, the power assembly further comprises:

[0015] The top end of the power oil cylinder is fixedly connected with the inner top end of the inner pipe.

[0016] The bottom end of the power oil cylinder is movably connected with one end of the power rod.

[0017] The other end of the power rod is fixedly connected with the top end of the power plug.

[0018] By designing the connecting assembly, the connecting assembly is composed of the connecting piece, the threaded ring and the compression ring, when the sample is taken out, the threaded ring is rotated to separate the connecting piece from the inner pipe, then the power plug is driven to push down and pull out the connecting piece outward, so that the protection piece containing the sample is discharged from the inner pipe, and finally the new connecting assembly containing the protection piece is installed back into the inner pipe, because the soil sample is effectively protected by the protection piece, the problem that the soil sample is easy to scatter during the transfer process and affects the accuracy of subsequent detection can be solved, and because the inner pipe is provided with the protection piece and the soil sample is always in contact with the protection piece, only the cleanliness of each protection piece needs to be ensured before sampling, and the outer pipe and the inner pipe do not need to be thoroughly cleaned after each sampling, so that the working efficiency during sampling is effectively improved.

[0019] Further, the bottom surface of the connecting assembly is provided with six sealing assemblies, and the sealing assemblies are uniformly arranged around the center of the connecting assembly, and the sealing assembly comprises:

[0020] The top surface of the sealing plate is attached to the bottom surface of the connecting piece.

[0021] The movable part is fixedly connected with the bottom end of the connecting part and movably connected with the sealing groove of the sealing plate at the top end of the movable part;

[0022] The two ends of the movable part are connected with the two ends of the sealing groove of the sealing plate through the sealing sheet.

[0023] Further, six limiting assemblies are arranged between the inner part of the outer tube and the outer part of the inner tube, and the limiting assemblies are evenly arranged around the center of the outer tube and the inner tube, the limiting assembly comprises:

[0024] The limiting plate is fixedly connected with the inner wall of the outer tube at one side, and the other side is in contact with the outer wall of the inner tube, and the limiting plate and the sealing plate are one-to-one corresponding;

[0025] The limiting plate is T-shaped, and a limiting cavity is formed in the inner part of the limiting plate, the limiting plate is movably connected with the limiting block through the limiting cavity, and the limiting plate and the limiting block are connected through the spring, the sealing plate end of the limiting plate is provided with a magnet, and the opposite surface of the limiting block has the same magnetism;

[0026] The limiting cavity of the limiting plate is provided with a limiting capsule, the top end of the limiting capsule is fixedly connected with the inner top end of the limiting plate, and the bottom end of the limiting capsule is fixedly connected with the top end of the limiting block;

[0027] The limiting tube is in communication with the inner part of the limiting capsule at one end, and the other end of the limiting tube passes through the outer tube and is in communication with the air pump.

[0028] By arranging multiple limiting assemblies between the inner wall of the outer tube and the outer wall of the inner tube, the limiting support of the inner tube is effectively improved, the straightness of the inner tube is ensured, and the bending deformation of the inner tube is prevented to affect sampling. By designing the limiting assembly, the limiting assembly is composed of a limiting plate, a limiting block, a limiting capsule and a limiting tube. After sampling, the air is sucked and discharged through the limiting tube to the limiting capsule with reciprocating movement of the sampling mechanism, so that the constantly deformed limiting capsule produces a vibration effect on the limiting plate, the soil in the outer tube cut by the limiting assembly is discharged, the discharge effect of the residual soil is effectively improved, and the soil loosened by cutting vibration returns to the sampling pit, effectively recovering the surface layer of the sampling pit, thereby improving the aesthetic degree of the soil surface.

[0029] By arranging the sealing assembly on the bottom surface of the connecting assembly, and the sealing assembly is composed of a sealing plate, a movable piece and a sealing sheet, when sampling, the sampling mechanism is lowered to a preset depth, and then the inner tube does not enter the soil sample, at this time, the limiting tube fills the gas into the limiting capsule, to push the limiting block to be lowered to be flush with the sealing plate, so that the limiting block exerts a magnetic repulsive force on the sealing plate, to push the sealing plate to close the bottom end of the connecting piece, effectively ensuring the stability of the sample when the sampling mechanism is raised subsequently.

[0030] Further, the inner tube, the power assembly, the protection piece, the sealing assembly and the connecting assembly constitute a sampling assembly, and the outer tube, the limiting assembly and the sampling assembly constitute a sampling mechanism.

[0031] Further, further comprising:

[0032] The top end of the sampling mechanism is provided with a driving mechanism;

[0033] The outer portion of the driving mechanism is provided with a supporting mechanism.

[0034] Further, the driving mechanism comprises:

[0035] The hydraulic oil cylinder is located above the outer tube;

[0036] The bottom end of the hydraulic oil cylinder is movably connected with one end of a hydraulic shaft;

[0037] The other end of the hydraulic shaft is fixedly connected with the upper end of a fixing piece, and the lower end of the fixing piece is fixedly connected with the outer top end of the outer tube.

[0038] Further, the supporting mechanism comprises:

[0039] The lower half of the hydraulic oil cylinder is fixedly sleeved with a supporting plate;

[0040] The outer portion of the supporting plate is fixedly hinged with three supporting legs.

[0041] The present application has the following advantages:

[0042] The rock soil detection and soil taking device for house building foundation construction provided by the application is characterized in that the outer pipe and the inner pipe are threadedly sleeved, the connecting assembly is sleeved and connected at the inner bottom end of the inner pipe, the power assembly is sleeved at the inner top end of the inner pipe, and the protection piece is arranged between the connecting assembly and the power assembly. BRIEF DESCRIPTION OF DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the provided drawings without creative labor:

[0044] Figure 1 It is a whole perspective view of the present application;

[0045] Figure 2 It is a whole sectional perspective view of the present application;

[0046] Figure 3 It is an enlarged view of A of the present application; Figure 2

[0047] Figure 4 It is an enlarged view of B of the present application; Figure 2

[0048] Figure 5 It is a perspective view of the driving mechanism and the sampling mechanism of the present application;

[0049] Figure 6 It is a perspective view of the driving mechanism of the present application;

[0050] Figure 7 It is a perspective view of the sampling mechanism of the present application;

[0051] Figure 8 It is a split perspective view of the outer pipe and the limiting assembly of the present application;

[0052] Figure 9 It is a sectional partial perspective view of one limiting assembly of the present application;

[0053] Figure 10 ​​It is the perspective view of the sampling assembly in the application;

[0054] Figure 11 It is the perspective view of the sampling assembly in the application;

[0055] Figure 12 It is the perspective view of the sampling assembly in the application Figure 11 It is the perspective view of the sampling assembly in the application

[0056] Figure 13 It is the perspective view of the sampling assembly in the application

[0057] Figure 14 It is the perspective view of the sampling assembly in the application

[0058] In the figure: 1, driving mechanism; 11, hydraulic cylinder; 12, hydraulic shaft; 13, fixed part; 2, support mechanism; 21, support plate; 22, support leg; 3, sampling mechanism; 31, outer pipe; 4, limiting assembly; 41, limiting plate; 42, limiting block; 43, limiting bag; 44, limiting pipe; 5, sampling assembly; 51, inner pipe; 6, power assembly; 61, power cylinder; 62, power rod; 63, power plug; 7, protection part; 70, gasket; 8, sealing assembly; 81, sealing plate; 82, movable part; 83, sealing sheet; 9, connecting assembly; 91, connecting part; 92, threaded ring; 93, compression ring. DETAILED DESCRIPTION

[0059] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0060] Embodiment one, a rock and soil detection soil sampling device for house building foundation construction, comprising a driving mechanism 1, such as Figures 1-2 , Figures 5-6 The driving mechanism 1 is composed of a hydraulic cylinder 11, a hydraulic shaft 12 and a fixed part 13. The bottom end of the hydraulic cylinder 11 is movably connected to one end of the hydraulic shaft 12. The other end of the hydraulic shaft 12 is fixedly connected to the upper end of the fixed part 13. The lower end of the fixed part 13 is fixedly connected to the external top end of the sampling mechanism 3. The driving mechanism 1 is used to provide power for the sampling mechanism 3 to press down and sample. Specifically, the hydraulic cylinder 11 drives the hydraulic shaft 12 to move up and down. Under the connection action of the fixed part 13, the sampling mechanism 3 can be synchronously driven to move up and down, so as to provide power for the sampling mechanism 3 to press down and cut into the soil and for the sampling mechanism 3 to move up and separate from the soil.

[0061] AsFigures 1-2 The drive mechanism 1 is externally provided with a support mechanism 2, which is used to provide stable support for the operation of the drive mechanism 1 and the sampling mechanism 3. The support mechanism 2 consists of a support plate 21 and support legs 22. The lower half of the hydraulic cylinder 11 is fixedly sleeved with the support plate 21, and three support legs 22 are fixedly hinged to the outside of the support plate 21. For sampling work, in the preparation stage, the bottom end of the support leg 22 needs to be inserted into the soil surface, which can provide a stable setting for the drive mechanism 1 and the sampling mechanism 3.

[0062] like Figures 2-5 The sampling mechanism 3 consists of an outer tube 31 and a sampling assembly 5, and the sampling assembly 5 consists of an inner tube 51, a power assembly 6, a protective component 7, and a connecting assembly 9, specifically:

[0063] like Figures 7-8 , Figures 10-11 The outer tube 31 is a tube with one open end and one closed end, and the open end has a sharp cutting surface at a specific angle to effectively cut the soil. The inner tube 51 is a tube with one open end and one closed end. When the inner tube 51 is installed inside the outer tube 31, the bottom surface of the inner tube 51 is higher than the bottom surface of the outer tube 31, so that the inner tube 51 only selects soil located inside the outer tube 31. The upper outer end of the inner tube 51 is provided with threads, and the inner tube 51 is connected to the outer tube 31 through the threads, so that the inner tube 51 can be removed from the outer tube 31 for convenient subsequent cleaning and storage.

[0064] like Figures 2-4 The inner bottom of the inner tube 51 is connected to a connecting assembly 9 for folding and storing the protective piece 7. The connecting assembly 9 includes a connector 91, a threaded ring 92, and a pressure ring 93, such as... Figures 10-13 The connector 91 has an inverted T-shaped cross-section, and its outer surface is movably sleeved with the bottom of the inner wall of the inner tube 51. The inner ring of the connector 91 is funnel-shaped with a wider top and narrower bottom, which effectively reduces the contact between the soil sample and the inner ring of the connector 91 before entering the protective component 7, thus reducing contamination. The side walls of the connector 91 and the inner tube 51 are threaded, and the connector 91 and the inner tube 51 are threadedly sleeved with the threaded ring 92 respectively. During sampling, the threaded ring 92 can be used to stably connect the connector 91 to the inner tube 51, enabling the protective component 7 to protect and isolate each layer of soil. After sampling, the threaded ring 92 can be used to easily remove the connector 91 from the inner tube 51 so that the protective component 7 can preserve the soil sample. The top of the connector 91 has an annular groove, and the connector 91 is movably engaged with the pressure ring 93 through the annular groove, which helps to clamp and fix one end of the protective component 7.

[0065] like Figures 2-4, the inner top end of the inner tube 51 is connected with a power assembly 6, which is used to provide power for pulling the protective member 7 to move upward when sampling, the power assembly 6 comprises a power oil cylinder 61, a power rod 62 and a power plug 63, as shown in Figure 11 , the top end of the power oil cylinder 61 is fixedly connected with the inner top end of the inner tube 51, the bottom end of the power oil cylinder 61 is movably connected with one end of the power rod 62, the other end of the power rod 62 is fixedly connected with the top end of the power plug 63, the power plug 63 is movably sleeved with the inner tube 51, the power oil cylinder 61 can drive the power rod 62 to move, and the power plug 63 is synchronously moved, when sampling, the inner tube 51 moves downward to cut into the soil, at this time, the power plug 63 moves upward compared with the inner tube 51, which plays a role in smoothly guiding the soil sample to enter, thereby effectively maintaining the integrity of the soil sample.

[0066] As shown in Figures 2-4 , one end of the protective member 7 is connected with the connecting assembly 9, and the other end of the protective member 7 is connected with the power assembly 6, which is used to wrap the soil sample, so that the surface of the soil sample is not contaminated, one end of the protective member 7 is open, one end is closed, and the protective member 7 is a flexible material resistant to friction and easy to fold, so that the soil sample can be effectively collected, as shown in Figure 12 , the open end of the protective member 7 is located in the ring groove of the connecting member 91 and is fixed by the pressing ring 93, which effectively ensures the stability of the connection of the open end of the protective member 7, the inner circle of the pressing ring 93 is provided with a storage groove, if the protective member 7 is not used, the folded part of the protective member 7 is located in the storage groove of the pressing ring 93, if the protective member 7 is used, the folded part of the protective member 7 will be gradually pulled out by external force and used, as shown in Figure 11 , the closed end of the protective member 7 is located outside the ring groove of the connecting member 91, and the closed end of the protective member 7 is provided with a gasket 70, the bottom end of the power plug 63 is provided with a connecting groove, the gasket 70 of the protective member 7 is movably clamped with the connecting groove of the power plug 63, that is, the gasket 70 can realize the stable connection of the closed end of the protective member 7 and the power plug 63, so that when sampling, the power plug 63 moves upward in the inner tube 51, which can synchronously provide power for the protective member 7 to pull out upward, so that the protective member 7 moves synchronously with the soil sample, thereby effectively wrapping the selected soil sample, so that the surface of the soil sample does not contact other, effectively avoiding the problem that the layers of the soil sample are mutually contaminated due to friction, improving the representativeness of the sample.

[0067] When the outer tube 31 cuts the soil and the inner tube 51 selects the sample, as the soil sample enters the inner tube 51, the power assembly 6 moves upward to synchronously pull out the protective member 7 from the connecting assembly 9, so that the protective member 7 moves with the soil sample, effectively wrapping the selected soil sample, so that the surface of the soil sample does not contact the inner wall of the inner tube 51, thereby not being attached to the inner wall of the inner tube 51 by friction, effectively avoiding the problem that the layers of the soil sample are mutually contaminated due to friction, improving the representativeness of the sample.

[0068] Example two, on the basis of example one, as Figures 2-4 , the constituent parts of the sampling assembly 5 also have a sealing assembly 8, the bottom surface of the connecting assembly 9 is provided with six sealing assemblies 8, and the sealing assemblies 8 are uniformly arranged around the center of the connecting assembly 9, for sealing the connecting assembly 9 during sampling, and ensuring the stability of the sample when the subsequent sampling mechanism 3 moves up, the sealing assembly 8 includes a sealing plate 81, a movable piece 82 and a sealing sheet 83, as Figures 10-14 , the top surface of the sealing plate 81 is attached to the bottom surface of the connecting piece 91, the thickness of the sealing plate 81 is thin, and the shape of the sealing plate 81 is arrow-shaped, which is beneficial to cutting the soil, so that the soil is horizontally divided, thereby effectively preventing too much soil from being squeezed and accumulated to affect the closing of multiple sealing plates 81, the top end of the sealing plate 81 is provided with a sealing groove, the top end of the movable piece 82 is fixedly connected with the bottom end of the connecting piece 91, and the bottom end of the movable piece 82 is movably connected with the sealing groove of the sealing plate 81, so that the sealing plate 81 can move horizontally on the connecting piece 91 by using the movable piece 82, specifically, multiple sealing plates 81 moving outward will not seal the connecting piece 91, and multiple sealing plates 81 moving inward will be attached to each other to seal the connecting piece 91, the two ends of the movable piece 82 and the two ends of the sealing groove of the sealing plate 81 are connected by the sealing sheet 83, which not only covers the sealing groove by using the expansion of the sealing sheet 83 to prevent soil and the like from entering the sealing groove and affecting the back and forth movement of the sealing plate 81, but also enhances the resistance effect of the movable piece 82 and the sealing plate 81 by using the deformation of the sealing sheet 83, so as to keep the state of the sealing plate 81 after being stressed.

[0069] Example three, on the basis of example two, as Figures 2-4 , the constituent parts of the sampling mechanism 3 also have a limiting assembly 4, six limiting assemblies 4 are arranged between the inside of the outer tube 31 and the outside of the inner tube 51, and the limiting assemblies 4 are uniformly arranged around the center of the outer tube 31 and the inner tube 51, for improving the limiting support of the inner tube 51, the limiting assembly 4 includes a limiting plate 41, a limiting block 42, a limiting capsule 43 and a limiting tube 44, as Figures 7-9The other side of the limiting plate 41 is in abutment with the outer wall of the inner pipe 51, which can ensure the straightness of the inner pipe 51 and prevent the inner pipe 51 from being bent and deformed to affect sampling. The limiting plate 41 corresponds to the sealing plate 81 one by one, the shape of the limiting plate 41 is T-shaped, and a limiting cavity is formed in the limiting plate 41. The limiting plate 41 is movably connected with the limiting block 42 through the limiting cavity, and the limiting block 42 is connected with the limiting plate 41 and the limiting block 42 through a spring. When the limiting block 42 is not subjected to the deformation force of the limiting capsule 43, the limiting block 42 is in a state of being higher than the sealing plate 81 under the action of the spring. When the limiting block 42 is subjected to the deformation force of the limiting capsule 43, the limiting block 42 is in a state of being flush with the sealing plate 81 under the action of external force. A magnet is arranged in the end portion of the sealing plate 81 close to the limiting plate 41, and the opposite surface of the limiting block 42 has the same magnetism as the magnet. Therefore, when the limiting block 42 is flush with the sealing plate 81, the limiting block 42 exerts a magnetic repulsion force on the sealing plate 81 to push the bottom end of the sealing connecting piece 91, thereby effectively ensuring the stability of the sample when the subsequent sampling mechanism 3 moves upward. The limiting capsule 43 is arranged in the limiting cavity of the limiting plate 41. The top end of the limiting capsule 43 is fixedly connected with the inner top end of the limiting plate 41, the bottom end of the limiting capsule 43 is fixedly connected with the top end of the limiting block 42, and the remaining side surface of the limiting capsule 43 only contacts the inner wall of the limiting plate 41. When the limiting capsule 43 expands, the limiting block 42 is pushed downward to help drive the sealing assembly 8 to close the connecting assembly 9 and also impact and vibrate the limiting plate 41, thereby effectively improving the discharge effect of residual soil. One end of the limiting pipe 44 is in communication with the inside of the limiting capsule 43, the other end of the limiting pipe 44 penetrates through the outer pipe 31 and is in communication with the air pump. When sampling is not performed, the gas in the limiting capsule 43 is less and shrinks. At this time, the limiting block 42 is not flush with the sealing assembly 8, and the sealing assembly 8 is in an open state of the connecting assembly 9 due to the pre-setting. When sampling is performed and the soil sample stops entering the inner pipe 51, the gas in the limiting capsule 43 increases and expands. At this time, the limiting block 42 moves downward until it is flush with the sealing assembly 8. At this time, the sealing assembly 8 closes the connecting assembly 9 due to the magnetic repulsion force. When sampling is performed and the sampling mechanism 3 moves upward, the amount of gas in the limiting capsule 43 changes constantly, and the limiting plate 41 is constantly vibrated and impacted by the limiting capsule 43, so that the soil is constantly discharged during the upward movement of the sampling mechanism 3, thereby effectively improving the discharge effect of residual soil. In addition, the soil loosened by cutting vibration returns to the sampling pit, thereby effectively recovering the surface layer of the sampling pit and improving the appearance of the soil surface.

[0070] The working principle of the use method of the present application is as follows:

[0071] When assembled, first, the inner tube 51 with the protection 7 is threaded on the outer tube 31, and the inner tube 51 is stably supported by the limiting assembly 4, effectively ensuring the straightness of the inner tube 51, preventing the inner tube 51 from bending and deforming to affect sampling, then the driving mechanism 1, the supporting mechanism 2 and the sampling mechanism 3 are assembled together, and finally the driving mechanism 1 and the sampling mechanism 3 are erected straight on the land by the supporting legs 22.

[0072] When sampling, first, the driving mechanism 1 is started to drive the sampling mechanism 3 to move down to smoothly cut the soil, in this process, a certain range of soil is first cut by the outer tube 31, and then re-cut by the inner tube 51 to select a certain amount of soil sample, when the soil sample starts to enter from the bottom end of the inner tube 51, the power assembly 6 is started to make the power plug 63 move up along the inner tube 51, so that the originally folded protection 7 is continuously pulled out from the connecting assembly 9, so that the protection 7 moves upward with the soil sample to realize that the protection 7 effectively wraps and protects the soil layer, so that the surface of the soil sample no longer contacts other, avoiding the problem that the layers of the soil sample are mutually contaminated due to friction contact, effectively improving the representativeness of the sample.

[0073] When sampling, and after the sampling mechanism 3 moves down to the preset depth, the driving mechanism 1 is closed, and then the air pump is started to inflate the limiting capsule 43 through the limiting tube 44, so that the limiting capsule 43 expands to push the limiting block 42 to move down until the limiting block 42 is flush with the height of the sealing plate 81, at this time, the limiting block 42 will exert a magnetic repulsion force on the sealing plate 81 to push the sealing plate 81 to close the bottom end of the connecting piece 91, then the driving mechanism 1 is started to drive the sampling mechanism 3 to move up until the sampling mechanism 3 moves out, in this process, as the sampling mechanism 3 moves up, the limiting capsule 43 is continuously deformed to produce a vibration effect on the limiting plate 41 by repeatedly inhaling and exhausting gas into the limiting capsule 43 through the limiting tube 44, so as to effectively improve the discharge effect of the residual soil, and the soil loosened due to cutting vibration returns to the sampling pit, effectively recovering the surface layer of the sampling pit, thereby improving the appearance of the soil surface.

[0074] After sampling, the soil sample in the inner tube 51 needs to be taken out, first, the inner tube 51 is moved downward along the outer tube 31, the bottom end of the inner tube 51 is extended out of the outer tube 31, so as to facilitate subsequent operation, then the threaded ring 92 is rotated to separate the connecting piece 91 from the inner tube 51, then the power assembly 6 is started to push the protective piece 7 to move downward, at the same time, the connecting piece 91 is pulled outward by artificial force, until the connecting piece 91 with the sample is discharged from the inner tube 51, then the sample is collected under the protection of the protective piece 7, so as to solve the problem that the soil sample is easy to scatter during the transfer process, which affects the accuracy of subsequent detection, if the next sampling is to be carried out, only the new connecting assembly 9 with the protective piece 7 needs to be installed on the inner tube 51, and the gasket 70 of the protective piece 7 is connected with the power plug 63.

[0075] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A geotechnical detection and soil taking device for house foundation construction, characterized in that, Include: The outer tube (31) and the inner tube (51), the upper end of the inner tube (51) is threadedly connected with the top end of the outer tube (31); The connecting assembly (9) is connected with the inner tube (51) at the bottom of the inner tube (51), the connecting assembly (9) includes a connecting piece (91), a threaded ring (92) and a compression ring (93), the top end of the connecting piece (91) is provided with a ring groove, and the connecting piece (91) is movably connected with the compression ring (93) through the ring groove; The power assembly (6) is connected with the inner tube (51) at the top of the inner tube (51), the power assembly (6) includes a power oil cylinder (61), a power rod (62) and a power plug (63), the outer wall of the power plug (63) is movably connected with the inner wall of the inner tube (51); The opening end of the protection piece (7) is located in the ring groove of the connecting piece (91) and is fixed by the compression ring (93), the inner ring of the compression ring (93) is provided with a storage groove, when the protection piece (7) is not used, the folded part of the protection piece (7) is located in the storage groove of the compression ring (93), the closed end of the protection piece (7) is located outside the ring groove of the connecting piece (91), and the closed end of the protection piece (7) is provided with a gasket (70), the bottom end of the power plug (63) is provided with a connecting groove, and the gasket (70) of the protection piece (7) is movably connected with the connecting groove of the power plug (63); When the outer tube (31) cuts the soil, the soil sample enters the inner tube (51), at this time, the power assembly (6) moves up and pulls out the protection piece (7) from the connecting assembly (9) at the same time, so that the protection piece (7) moves with the soil sample to protect the selected soil sample in a wrapped manner.

2. The soil detection and sampling apparatus for housing ground construction according to claim 1, wherein The connecting assembly (9) further includes: The connecting piece (91) is in the shape of an inverted T, and the outer part of the connecting piece (91) is movably connected with the inner wall of the inner tube (51), and the inner ring of the connecting piece (91) is in the shape of a funnel with the upper part being wide and the lower part being narrow; The side wall of the connecting piece (91) and the side wall of the inner tube (51) are respectively threadedly connected with the threaded ring (92).

3. The soil detection and sampling apparatus for building foundation construction according to claim 2, wherein The power assembly (6) further includes: The top end of the power oil cylinder (61) is fixedly connected with the top end of the inner tube (51); The bottom end of the power oil cylinder (61) is movably connected with one end of the power rod (62); The other end of the power rod (62) is fixedly connected with the top end of the power plug (63).

4. The ground detection and soil sampling apparatus for housing foundation construction according to claim 3, characterized by The bottom surface of the connecting assembly (9) is provided with six sealing assemblies (8), and the sealing assemblies (8) are evenly arranged around the center of the connecting assembly (9), the sealing assembly (8) includes: The top surface of the sealing plate (81) is attached to the bottom surface of the connecting piece (91); The top end of the movable piece (82) is fixedly connected with the bottom end of the connecting piece (91), and the bottom end of the movable piece (82) is movably connected with the sealing groove of the sealing plate (81); The two ends of the movable piece (82) and the sealing groove of the sealing plate (81) are connected by the sealing piece (83).

5. The soil detection and sampling apparatus for building foundation construction according to claim 4, wherein Six limiting assemblies (4) are arranged between the inner part of the outer pipe (31) and the outer part of the inner pipe (51), and the limiting assemblies (4) are evenly arranged around the center of the outer pipe (31) and the inner pipe (51), the limiting assembly (4) comprises: A limiting plate (41), one side of the limiting plate (41) is fixedly connected with the inner wall of the outer pipe (31), and the other side of the limiting plate (41) is in abutment with the outer wall of the inner pipe (51), the limiting plate (41) corresponds to the sealing plate (81) one by one; A limiting block (42), the limiting plate (41) is T-shaped, and a limiting cavity is formed in the inner part of the limiting plate (41), the limiting plate (41) is movably connected with the limiting block (42) through the limiting cavity, and the limiting plate (41) and the limiting block (42) are connected through a spring, a magnet is arranged in the end part of the sealing plate (81) close to the limiting plate (41), and the magnet and the opposite surface of the limiting block (42) have the same magnetism; A limiting capsule (43), the limiting capsule (43) is arranged in the limiting cavity of the limiting plate (41), the top end of the limiting capsule (43) is fixedly connected with the inner top end of the limiting plate (41), and the bottom end of the limiting capsule (43) is fixedly connected with the top end of the limiting block (42); A limiting tube (44), one end of the limiting tube (44) is in communication with the inner part of the limiting capsule (43), and the other end of the limiting tube (44) penetrates through the outer pipe (31) and is in communication with the air pump.

6. The soil detection and sampling apparatus for building foundation construction according to claim 5, wherein The inner pipe (51), the power assembly (6), the protection member (7), the sealing assembly (8) and the connecting assembly (9) constitute a sampling assembly (5), the outer pipe (31), the limiting assembly (4) and the sampling assembly (5) constitute a sampling mechanism (3).

7. The soil detection and sampling apparatus for building foundation construction according to claim 6, wherein Further comprising: A driving mechanism (1) is arranged at the top end of the sampling mechanism (3); A supporting mechanism (2) is arranged at the outer part of the driving mechanism (1).

8. The ground detection and soil sampling apparatus for housing foundation construction according to claim 7, wherein The driving mechanism (1) comprises: A hydraulic oil cylinder (11) is arranged above the outer pipe (31); A hydraulic shaft (12) is movably connected with one end of the hydraulic oil cylinder (11); A fixing member (13) is fixedly connected with the other end of the hydraulic shaft (12) and the upper end of the fixing member (13), and the lower end of the fixing member (13) is fixedly connected with the outer top end of the outer pipe (31).

9. The soil detection and sampling apparatus for building foundation construction according to claim 8, wherein The supporting mechanism (2) comprises: A supporting plate (21) is fixedly sleeved with the lower half of the hydraulic oil cylinder (11); Three supporting legs (22) are fixedly hinged to the outer part of the supporting plate (21).

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