CN219753193U - Engineering foundation detects sampling device - Google Patents
Engineering foundation detects sampling device Download PDFInfo
- Publication number
- CN219753193U CN219753193U CN202320652282.8U CN202320652282U CN219753193U CN 219753193 U CN219753193 U CN 219753193U CN 202320652282 U CN202320652282 U CN 202320652282U CN 219753193 U CN219753193 U CN 219753193U
- Authority
- CN
- China
- Prior art keywords
- tube
- sampling
- panel
- outer tube
- sampling tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005070 sampling Methods 0.000 title claims abstract description 71
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 29
- 230000002093 peripheral effect Effects 0.000 abstract description 6
- 230000000670 limiting effect Effects 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 1
Abstract
The utility model relates to an engineering foundation detection sampling device, which effectively solves the problems of high feeding friction resistance and easy sample scattering of a foundation layer sampling device; the technical scheme includes that the device comprises a base body composed of supporting legs and a horizontal panel, wherein a sampling tube assembly vertically penetrates through the panel and can slide up and down, the panel has limiting and guiding functions on the sampling tube assembly, the sampling tube assembly comprises an inner tube and an outer tube, the outer tube is coaxially sleeved on the inner tube and can rotate around an axis, a bearing is arranged between the upper end of the outer tube and the upper end of the inner tube, a helical blade is arranged on the outer wall of the outer tube, and the helical blade can discharge soil to the upper end along with the rotation of the outer tube; the utility model can reduce the friction resistance of the peripheral soil body to the sampling tube assembly and can avoid the scattering of the sample when the sampling tube assembly is pulled out.
Description
Technical Field
The utility model relates to the field of foundation detection, in particular to an engineering foundation detection sampling device.
Background
Before engineering construction, soil layer sampling detection is needed to be carried out on the foundation to confirm whether the foundation meets the construction requirement, and the sampling method adopted at present is to insert a sampling tube into the soil layer and then pull out a section of soil column sample; the sampling tube has simple linear driving modes such as rammer ramming, pneumatic cylinder, gear rack jacking and the like, for example, application number: utility model patent and application number of CN 201921961130.6: in the utility model patent of CN202221151936.0, when the sampling tube is inserted into the soil layer, the soil layer inside and outside the sampling tube can squeeze the side wall of the sampling tube to form friction resistance as the sampling tube wall occupies a part of space, so that the lower the sampling tube is inserted into the soil layer, the larger the friction resistance is; another type is a spiral drilling form using a motor, a screw, etc. in combination with a drill bit, for example, application number: utility model patent and application number of CN 202122084075.0: in the utility model patent of CN202010784938.2, if a spiral drill bit is adopted in the drilling mode, the spiral drill bit has certain soil discharging capability, and can reduce the friction resistance of soil body to the sampling tube, but also because the sampling tube rotates, the inner wall of the sampling tube and the soil column sample in the sampling tube rotate relatively all the time, so that the friction force between the inner wall of the sampling tube and a sample piece is correspondingly reduced, and the sample is easy to scatter when the sampling tube is pulled out.
Disclosure of Invention
Aiming at the problems that the feeding friction resistance of the foundation soil layer sampling device is large and samples are easy to scatter, the utility model provides an engineering foundation detection sampling device.
The technical scheme that it solves includes the base member of constituteing by landing leg and horizontally panel, wears to be equipped with the sampling tube subassembly on the panel of base member perpendicularly, and the sampling tube subassembly runs through the panel and can slide from top to bottom, and the panel has spacing and direction effect to the sampling tube subassembly, and the sampling tube subassembly includes an inner tube and an outer tube, and the outer tube is with the axle sleeve setting on the inner tube and can rotate around the axis, is equipped with the bearing between outer tube upper end and the inner tube upper end, installs a helical blade on the outer wall of outer tube, and helical blade rotates to the upper end earth discharge along with the outer tube.
The upper end of the inner tube is fixed with a horizontal top plate, a driving motor is arranged on the top plate and connected with a driving gear, the upper end of the outer tube is fixed with a driven gear, and the driving gear is meshed with the driven gear.
The top plate is provided with air holes communicated with the inner pipe.
The upper plate surface of the top plate is provided with a protruding block.
The panel is provided with a vertical guide tube, and the sampling tube assembly passes through the guide tube.
The utility model can reduce the friction resistance of the peripheral soil body to the sampling tube assembly and can avoid the scattering of the sample when the sampling tube assembly is pulled out.
Drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is a front cross-sectional view of the present utility model.
Fig. 3 is an enlarged view of the position a in fig. 2.
Detailed Description
The utility model comprises a base body consisting of a supporting leg 1 and a horizontal panel 2, wherein the panel 2 of the base body is vertically penetrated with a sampling tube assembly 3, the sampling tube assembly 3 penetrates through the panel 2 and can slide up and down, the panel 2 has limit and guide functions on the sampling tube assembly 3, the upper end of the sampling tube assembly 3 is hammered or pressed down, the lower end of the sampling tube assembly 3 can be inserted into a soil layer, the sampling tube assembly 3 comprises an inner tube 4 and an outer tube 5, the outer tube 5 is coaxially sleeved on the inner tube 4 and can rotate around an axis, a bearing 6 is arranged between the upper end of the outer tube 5 and the upper end of the inner tube 4, a helical blade 7 is arranged on the outer wall of the outer tube 5, the helical blade 7 rotates along with the outer tube 5 and can drain soil to the upper end, thereby discharging soil close to the outer wall of the sampling tube assembly 3, forming a gap between the outer wall of the sampling tube assembly 3 and the soil layer, and preventing the peripheral soil body from extruding the sampling tube assembly 3 to form friction resistance on the sampling tube assembly 3, and further reducing the resistance of the sampling tube assembly 3 to smash.
The upper end of the inner tube 4 is fixed with a horizontal top plate 8, a driving motor 9 is arranged on the top plate 8, the driving motor 9 is connected with a driving gear 10, the upper end of the outer tube 5 is fixed with a driven gear 11, the driving gear 10 is meshed with the driven gear 11, and the driving motor 9 drives the outer tube 5 to rotate through a gear set.
The top plate 8 is provided with ventilation holes 12 communicated with the inner tube 4, and when the sampling tube assembly 3 is inserted into a soil layer, air pressure resistance is formed in the inner tube 4.
The upper plate surface of the top plate 8 is provided with a protruding block 13 serving as a hammering stress point.
The panel 2 is provided with a vertical guide tube 14, and the sampling tube assembly 3 passes through the guide tube 14, so that the guiding and limiting effects on the sampling tube are enhanced.
When the sampling device is used, a substrate is placed at a sampling position, the lower end of the sampling tube assembly 3 is aligned with a sampling point, a driving motor 9 is started after the sampling point, the driving motor 9 drives an outer tube 5 to start rotating, then the sampling tube assembly 3 is hammered or pressed down by an air cylinder, a screw rod and the like, and a force application position is a protruding block 13 on a horizontal plate, so that the sampling tube assembly 3 is pricked into a soil layer downwards; in the process of downward movement of the sampling tube assembly 3, the outer tube 5 rotates, the helical blades 7 discharge the soil around the outer tube 5 upwards, a gap is formed between the outer tube 5 and peripheral soil, the peripheral soil does not squeeze the outer tube 5, so that the friction resistance of the soil on the outer wall of the sampling tube assembly 3 is reduced, meanwhile, the inner tube 4 does not rotate, the inner wall of the inner tube 4 and the soil column in the inner tube are kept in close contact with each other, and the samples in the inner tube 4 are prevented from falling when the sampling tube assembly 3 is pulled out.
According to the utility model, through the sampling tube assembly 3 with an inner layer structure and an outer layer structure, the outer tube 5 is rotated to discharge outer soil, so that the friction resistance of peripheral soil on the sampling tube assembly 3 is reduced, and meanwhile, the inner tube 4 is not rotated to enable the inner wall of the inner tube 4 to keep contact with a sample soil column, so that the sample is prevented from scattering when the sampling tube assembly 3 is pulled out; in addition, the outer pipe 5 has a downward drilling action due to the downward reaction force of the soil body to the helical blades 7 when the outer pipe 5 rotates.
Claims (5)
1. The utility model provides an engineering foundation detects sampling device, include the base member of constituteing by landing leg (1) and horizontally panel (2), a serial communication port, wear to be equipped with sampling tube subassembly (3) perpendicularly on panel (2) of base member, sampling tube subassembly (3) run through panel (2) and can slide from top to bottom, panel (2) have spacing and direction effect to sampling tube subassembly (3), sampling tube subassembly (3) include an inner tube (4) and an outer tube (5), outer tube (5) coaxial sleeve is established on inner tube (4) and can rotate around the axis, be equipped with bearing (6) between outer tube (5) upper end and inner tube (4) upper end, install a helical blade (7) on the outer wall of outer tube (5), helical blade (7) rotate along with outer tube (5) and can be up the end earth discharge.
2. The engineering foundation detection sampling device according to claim 1, wherein a horizontal top plate (8) is fixed at the upper end of the inner pipe (4), a driving motor (9) is mounted on the top plate (8), the driving motor (9) is connected with a driving gear (10), a driven gear (11) is fixed at the upper end of the outer pipe (5), and the driving gear (10) is meshed with the driven gear (11).
3. An engineering foundation detection sampling device according to claim 2, wherein the top plate (8) is provided with ventilation holes (12) communicated with the inner pipe (4).
4. An engineering foundation detection sampling device according to claim 2, wherein a protruding block (13) is arranged on the upper plate surface of the top plate (8).
5. An engineering foundation inspection sampling device according to claim 1, wherein the panel (2) is provided with a vertical guide tube (14), and the sampling tube assembly (3) passes through the guide tube (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320652282.8U CN219753193U (en) | 2023-03-29 | 2023-03-29 | Engineering foundation detects sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320652282.8U CN219753193U (en) | 2023-03-29 | 2023-03-29 | Engineering foundation detects sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219753193U true CN219753193U (en) | 2023-09-26 |
Family
ID=88077140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320652282.8U Active CN219753193U (en) | 2023-03-29 | 2023-03-29 | Engineering foundation detects sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219753193U (en) |
-
2023
- 2023-03-29 CN CN202320652282.8U patent/CN219753193U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |