CN221193265U

CN221193265U - Roadbed soil sampling assembly

Info

Publication number: CN221193265U
Application number: CN202323036443.XU
Authority: CN
Inventors: 崔宇鹏; 李晓晗; 祁连恒; 刘月娇; 王胜利; 高胜超; 侯伟乐; 王秋; 李跃; 孙辉玲; 刘冲; 师鹏超; 刘朔; 贾大帅; 尹新生; 张甲戌; 夏伟钊
Original assignee: Hebei Highway & Waterway Engineering Consulting Co ltd; Hebei Huijin Engineering Testing Co ltd
Current assignee: Hebei Highway & Waterway Engineering Consulting Co ltd; Hebei Huijin Engineering Testing Co ltd
Priority date: 2023-11-10
Filing date: 2023-11-10
Publication date: 2024-06-21
Anticipated expiration: 2033-11-10

Abstract

The utility model provides a roadbed soil sampling assembly, which comprises a fixing frame, a pushing assembly and a soil sampling cylinder; the fixed mount is supported on the roadbed; the pushing component is arranged on the fixing frame, and the lower end of the pushing component forms a telescopic end which can stretch along the up-down direction; the soil sampling tube is arranged below the expansion and contraction device, a cutting net piece is fixed in the soil sampling tube, the bottom of the soil sampling tube is provided with an opening, the top of the soil sampling tube is covered with a plugging plate, the expansion end can be abutted to the plugging plate, and the cutting net piece is used for cutting soil layers. According to the roadbed soil sampling assembly provided by the utility model, the soil sampling cylinder is arranged, and the soil sampling cylinder is pressed from top to bottom by the pushing assembly, so that the soil sampling cylinder is directly embedded into the pure soil roadbed along the up-down direction, and the soil sampling cylinder cannot rotate when entering the pure soil roadbed; after the soil sampling cylinder is taken out, the formed drilling pit is regular in shape, the volume of the taken soil sample is conveniently measured, and the accuracy of compaction degree data of the roadbed is greatly improved.

Description

Roadbed soil sampling assembly

Technical Field

The utility model belongs to the technical field of road detection, and particularly relates to a roadbed soil sampling assembly.

Background

In the process of roadbed acceptance detection, a cylindrical detection pit is required to be dug on a constructed roadbed surface, and the weight of the dug soil and the drilling volume are detected and analyzed to achieve the effect of detecting the compactness of the road surface.

The prior soil sampler structure comprises a circular base, a guide seat is fixedly connected with the center of the base, a soil sampling rod is arranged at the center sliding device of the guide seat, the upper end of the soil sampling rod is provided with a structure with a soil sampling sleeve at the lower end of a screw rod, the screw rod is spirally connected in the screw rod seat, and the screw rod seat is fixedly connected with the circular base.

However, the existing soil sampler is not suitable for a pure soil roadbed, the conventional soil sampler rotates to enter a soil layer, the water content of the pure soil roadbed is high, the drilling friction resistance is high, a drill bit of the soil sampler is easy to lock in the drilling process, the soil sampler is damaged, and the use cost is increased; and when the soil sampler drills, the drilling shape is irregular, so that a certain difficulty is caused to follow-up measurement drilling, the drilled soil is difficult to collect, the soil is easy to additionally take out, the taken out soil amount is different from the preset soil amount, and the analysis result of compactness is influenced.

Disclosure of utility model

The embodiment of the utility model provides a roadbed soil sampling assembly, which aims to solve the problems that a soil sampling device in the prior art is not suitable for soil sampling of a pure soil roadbed and the actual soil sampling amount is deviated from the predicted soil sampling amount.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

Provided is a roadbed soil sampling assembly, comprising:

The fixing frame is supported on the roadbed;

The pushing component is arranged on the fixing frame, and the lower end of the pushing component forms a telescopic end which can be telescopic up and down; and

The soil sampling tube is arranged below the telescopic end, a cutting net piece is fixed in the soil sampling tube, the bottom of the soil sampling tube is provided with an opening, the top of the soil sampling tube is covered with a plugging plate, the telescopic end can be abutted to the plugging plate, and the cutting net piece is used for cutting a soil layer.

In one possible implementation manner, the bottom end of the soil sampling cylinder is coaxially provided with a cutting ring, and the inner diameter of the cutting ring gradually increases from bottom to top.

In one possible implementation manner, a plurality of cutting meshes are arranged, the plurality of cutting meshes are arranged at intervals along the up-down direction, and the cutting meshes are provided with cutting edges arranged downwards.

In one possible implementation, the bottom end of the soil sampling cylinder forms a downwardly inclined opening.

In one possible implementation, the mount includes;

the plurality of support rods are uniformly distributed around the soil sampling cylinder, and each support rod is arranged along the up-down direction; and

The base is arranged at the top of the supporting rod and is fixedly connected with the supporting rod respectively, a soil taking space is formed below the base, and the soil taking cylinder is arranged in the soil taking space.

In one possible implementation manner, a mounting ring is arranged on the inner wall of the bottom of the soil pick-up cylinder, a plurality of sector plates are arranged on the inner side of the mounting ring, the sector plates encircle the central axis of the mounting ring to be spliced to form a circular plate-shaped structure, and each sector plate is hinged with the mounting ring.

In one possible implementation manner, the pushing assembly comprises two hydraulic driving pieces symmetrically arranged about the central axis of the soil sampling cylinder, the bottom ends of the hydraulic driving pieces form telescopic ends, and the two telescopic ends are respectively abutted with the top of the soil sampling cylinder.

In one possible implementation, the top of the soil sampling cylinder is provided with a lifting handle.

In one possible implementation manner, the fixing frame is further provided with an ejection driving piece and a lifting rod;

The lifting rod is arranged along the horizontal direction and penetrates through the lifting handle;

The push driving piece is arranged at the bottom of the lifting rod and is provided with a push head which can stretch up and down, and the push head can be abutted with the bottom end of the lifting rod.

In a possible implementation manner, the fixing frame is provided with a guide groove extending along the up-down direction, the side wall of the lifting rod is provided with a clamping head corresponding to the guide groove, the clamping head is clamped and limited with the guide groove in the direction perpendicular to the up-down direction, and the clamping head is further matched with the guide groove in an up-down sliding manner.

Compared with the prior art, the roadbed soil sampling assembly provided by the utility model is provided with the soil sampling cylinder, the soil sampling cylinder is pressed from top to bottom by the pushing component, so that the soil sampling cylinder is directly embedded into the pure soil roadbed along the up-down direction, the soil sampling cylinder cannot rotate when entering the pure soil roadbed, the condition that the soil sampling cylinder is blocked cannot occur, and the service life of the soil sampling cylinder is prolonged; the soil sampling cylinder does not rotate, and after the soil sampling cylinder is taken out, the formed drilling pit is regular in shape, so that the volume of a taken out soil sample is conveniently measured, and the accuracy of a detection result is improved; the grid slicing cuts up soil, after the soil sampling cylinder is taken out, the soil sample in the drilling pit is loose, so that the soil sample is convenient for workers to take out, the soil sample taking difficulty is low, and the sampling efficiency is accelerated; the taken soil samples are conveniently concentrated together and are combined with data obtained by measuring the pit drilling, so that the accuracy of the compactness data of the roadbed is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of a front view of a roadbed soil sampling assembly according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a soil pick-up cartridge according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a cutting mat according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of a soil pick-up cartridge according to a second embodiment of the present utility model;

FIG. 5 is a schematic view of an assembly of a sector plate and a mounting ring employed in accordance with a third embodiment of the present utility model;

Fig. 6 is an assembly schematic diagram of a guide groove and a clamping head according to a fourth embodiment of the present utility model.

Reference numerals illustrate:

1. a fixing frame; 11. a support rod; 111. a guide groove; 12. a base;

2. A pushing assembly; 21. a hydraulic drive; 211. a lifting head;

3. A soil sampling cylinder; 31. cutting the mesh; 32. a plugging plate; 33. cutting the ring; 34. an opening; 35. a mounting ring; 36. a lifting handle;

4. A sector plate;

5. a lifting rod; 51. a clamping joint;

6. Pushing the driving member.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It should be noted that the terms "length," "width," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," "tail," and the like indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the utility model.

It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. Furthermore, the meaning of "a plurality of", "a number" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 6, a description will now be given of a roadbed soil sampling assembly according to the present utility model. The roadbed soil sampling assembly comprises a fixing frame 1, a pushing component 2 and a soil sampling cylinder 3. The fixing frame 1 is arranged on the roadbed; the pushing component 2 is arranged on the fixed frame 1, and the lower end of the pushing component 2 forms a telescopic end which can extend and retract along the up-down direction; the below of flexible end is located to the section of thick bamboo 3 that fetches earth, and the section of thick bamboo 3 internal fixation that fetches earth is fixed with cutting net piece 31, and section of thick bamboo 3 bottom opening fetches earth, and the section of thick bamboo 3 top that fetches earth is covered with shutoff board 32, flexible end can with shutoff board 32 butt, and cutting net piece 31 is used for cutting the soil layer.

It should be noted that, the soil sampling cylinder 3 is made of steel, and the steel has high structural strength, can bear strong pressure without deformation, and meets construction requirements.

It should be noted that, this device is applicable to pure soil roadbed to be not applicable to the detection of rubble soil roadbed compactness, consider in the actual operation that contain the rubble in the soil probably can produce the destruction to the device, so not be applied to rubble soil roadbed filling.

The pure soil roadbed contains moisture, when the drilling machine is adopted for rotary sampling, the friction force between the device and the soil sample is large, the drilling machine is easy to damage, the shape of a drilling pit drilled by the drilling machine is uneven, and the difficulty of measuring the drilling pit is large.

It should be noted that, the cutting net piece 31 may be welded to the inner wall of the soil sampling tube 3, or may be a clamping ring formed on the inner wall of the soil sampling tube 3, the clamping ring is provided with a clamping ring groove, and the outer periphery of the cutting net piece 31 is clamped in the clamping ring groove.

The working principle of the application is that the soil sampling tube 3 is directly inserted into a soil base, the soil sample covered by the soil sampling tube 3 is cut by the cutting net piece 31 in the soil sampling tube 3, then the soil sampling tube 3 is lifted, and the cut soil sample is taken out and weighed. The drill pits left by the soil sampling cylinder 3 are uniform in shape, so that the volume measurement of the taken soil sample is convenient; the cutting net piece 31 cuts up the soil sample, has reduced the soil sample and has gathered the degree of difficulty, has improved sampling efficiency.

The density of the roadbed can be obtained by removing the drilling pit volume by using the weight of the extracted soil sample, and then whether the compactness of the roadbed meets the standard can be judged.

Compared with the prior art, the roadbed soil sampling assembly provided by the embodiment is provided with the soil sampling cylinder 3, the soil sampling cylinder 3 is pressed from top to bottom through the pushing component 2, so that the soil sampling cylinder 3 is directly embedded into the pure soil roadbed along the up-down direction, the soil sampling cylinder 3 cannot rotate when entering the pure soil roadbed, the condition that the soil sampling cylinder 3 is clamped cannot occur, and the service life of the soil sampling cylinder 3 is prolonged; the soil sampling cylinder 3 does not rotate, and after the soil sampling cylinder 3 is taken out, the formed drilling pit is regular in shape, so that the volume of a taken out soil sample is conveniently measured, and the accuracy of a detection result is improved; the grid slicing cuts up soil, after the soil sampling cylinder 3 is taken out, the soil sample in the drilling pit is loose, so that the soil sample is convenient for workers to take out, the soil sample taking difficulty is low, and the sampling efficiency is accelerated; the taken soil samples are conveniently concentrated together and are combined with data obtained by measuring the pit drilling, so that the accuracy of the compactness data of the roadbed is greatly improved.

In some embodiments, referring to fig. 2, a cutting ring 33 is coaxially disposed at the bottom end of the soil sampling tube 3, and the inner diameter of the cutting ring 33 gradually increases from bottom to top. The bottom surface area of cutting ring 33 is little, when exerting pressure downwards to the soil taking tube 3, cutting ring 33 has increased the pressure of soil taking tube 3 to the road bed, makes things convenient for soil taking tube 3 to cut into the road bed, has reduced the resistance that soil taking tube 3 got into the road bed.

In some embodiments, referring to fig. 2, a plurality of cut meshes 31 are provided, the plurality of cut meshes 31 are arranged at intervals in the up-down direction, and the cut meshes 31 have cutting edges arranged downward. The cutting net piece 31 is provided with a plurality of grids, the cutting edge can cut into the roadbed, and the soil sample is smashed under the action of the grids, so that the roadbed is wholly smashed into loose small soil blocks, the difficulty of soil taking of staff is reduced, and the sampling speed is improved. The plurality of cutting meshes 31 are arranged, so that the road base can be smashed for a plurality of times, the chopping effect on the road base is further improved, the soil sample is looser, and the soil sample is convenient to take out.

In a specific implementation process, in two adjacent cut meshes 31, the upper cut mesh 31 rotates by a certain angle relative to the lower cut mesh 31.

In practice, the vertical projections of the plurality of dicing sheets 31 are staggered on the same horizontal plane.

In some embodiments, referring to fig. 4, the bottom end of the soil pick-up drum 3 forms a downwardly sloped opening 34. The opening 34 can reduce the contact area of the soil taking cylinder 3 and the roadbed, increases the pressure intensity, reduces the resistance of the soil taking cylinder 3 entering the roadbed, and facilitates the soil taking cylinder 3 to cut into the roadbed.

In some embodiments, referring to fig. 1, the fixing frame 1 includes a plurality of support rods 11 and a base 12. The plurality of support rods 11 are uniformly distributed around the soil sampling cylinder 3, and each support rod 44 is arranged along the up-down direction; the base 12 is arranged at the top of the supporting rod 11 and is fixedly connected with the supporting rod 11 respectively, a soil sampling space is formed below the base 12, and the soil sampling cylinder 3 is arranged in the soil sampling space. The support rod 11 lifts the base 12 off the ground, the base 12 is aligned with a preset cutting position, the pushing assembly 2 is arranged at the bottom of the base 12, and the telescopic end moves downwards to press the soil taking cylinder 3 into the soil.

As a specific implementation mode of the supporting rod 11, the supporting rod 11 is formed by a plurality of sections of short rods which are connected end to end, two ends of each short rod are respectively provided with a thread head and a thread groove, and the thread heads are in threaded fit with the thread grooves on the adjacent supporting rods 11, so that the height of the base 12 can be conveniently adjusted.

In some embodiments, referring to fig. 5, a mounting ring 35 is provided on the inner wall of the bottom of the soil sampling cylinder 3, a plurality of sector plates 4 are provided on the inner side of the mounting ring 35, the plurality of sector plates 4 are spliced around the central axis of the mounting ring 35 to form a circular plate structure, and each sector plate 4 is hinged with the mounting ring 35. After the sector plate 4 enters the roadbed through the soil taking barrel 3, the sector plate 4 is pushed by the soil sample, the sector plate 4 rotates upwards, after the soil taking barrel 3 is pulled away from the roadbed, the soil sample is affected by self gravity and has downward falling force, and the sector plate 4 is inserted into the soil sample, so that most of the soil sample can be driven to leave the drilling pit, and the sampling efficiency of staff is greatly improved.

In a specific implementation process, a plurality of mounting rings 35 may be provided, and the plurality of mounting rings 35 are arranged at intervals along the length direction of the soil sampling tube 3.

In the specific implementation process, the mounting ring 35 is provided with a limiting ring towards the axis of the mounting ring, and the sector plate 4 is arranged above the limiting ring, so that the sector plate 4 can only swing upwards and cannot swing downwards.

In some embodiments, referring to fig. 1, the pushing assembly 2 includes two hydraulic driving members 21 symmetrically disposed about the central axis of the soil sampling tube 3, and the bottom ends of the hydraulic driving members 21 form telescopic ends that respectively abut against the top of the soil sampling tube 3. The hydraulic driving piece 21 drives the lifting head 211 to move downwards, the lifting head 211 is abutted against the top of the soil taking barrel 2, and the soil taking barrel 3 is pushed into the roadbed, so that pit drilling is completed.

In particular, the bottom of the hydraulic driving member 21 is provided with a lifting head 211 which is lifted up and down, the lifting head 211 forms a telescopic end, and the two lifting heads 211 are respectively abutted with the top of the soil sampling cylinder 3.

Alternatively, the hydraulic driving member 21 is a hydraulic driving cylinder, and a lifting head 211 is formed at the end of a piston rod of the hydraulic driving cylinder.

In order to prevent the soil sampling tube 3 from being deviated in the vertical direction into the roadbed, the two hydraulic driving members 21 are symmetrically arranged with the central axis of the soil sampling tube 3 as a symmetrical point.

In some embodiments, referring to fig. 1, the top of the soil pick-up drum 3 is provided with a lifting handle 36. The lifting handle 36 provides a holding part, so that a worker can conveniently withdraw the soil sampling tube 3, the soil sampling tube 3 is convenient to take, and the convenience in use of the soil sampling tube 3 is improved.

In some embodiments, referring to fig. 1, the fixing frame 1 is further provided with an ejector driving member 6 and a lifting rod 5; the lifting rod 5 is arranged along the horizontal direction, and the lifting rod 5 penetrates through the lifting handle 36; the push driving piece 6 is arranged at the bottom of the lifting rod 5 and provided with a push head which can stretch up and down, and the push head can be abutted with the bottom end of the lifting rod 5. The push driving piece 6 and the lifting rod 5 are arranged on the fixing frame 1 of the embodiment, the soil sampling cylinder 3 can be lifted out of the roadbed through equipment, the soil sampling cylinder 3 is not required to be manually lifted, and the labor intensity of workers is reduced. The lifting rod 5 passes through the lifting handle 36 along the horizontal direction, the pushing head upwards pushes up the lifting rod 5, the soil taking barrel 3 leaves the roadbed along with the lifting of the lifting rod 5, the process is simple, and no complex steps are caused.

In specific implementation, the pushing driving piece 6 is a driving oil cylinder, a piston rod of the driving oil cylinder stretches along the up-down direction, and a pushing head is formed at the top of the piston rod.

As another embodiment of the ejection driving member 6, the ejection driving member 6 is a jack, so that the ejection speed can be adjusted, and the soil taking barrel 3 is prevented from being lifted too fast, so that the drilling pit is prevented from being damaged.

In particular implementation, two pushing driving parts 6 are symmetrically arranged on two sides of the soil sampling cylinder 3, and the two pushing heads synchronously lift so as to keep the lifting rod 3 horizontal.

In some embodiments, referring to fig. 6, a guide groove 111 extending along an up-down direction is provided on the fixing frame 1, a clamping joint 51 is provided on a side wall of the lifting rod 5 corresponding to the guide groove 111, the clamping joint 51 is clamped and limited with the guide groove 111 in a direction perpendicular to the up-down direction, and the clamping joint 51 is in up-down sliding fit with the guide groove 111. The guide groove 111 can guide the movement of the lifting rod 5, so that the soil sampling cylinder 3 is prevented from deviating from the lifting direction, and the drilling pit is prevented from being damaged.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a roadbed soil sampling assembly which characterized in that includes:

The fixing frame is supported on the roadbed;

2. The subgrade soil sampling assembly as claimed in claim 1, wherein the bottom end of the soil sampling cylinder is coaxially provided with a cutting ring, and the inner diameter of the cutting ring is gradually increased from bottom to top.

3. The subgrade soil sampling assembly as set forth in claim 1, wherein a plurality of said cutting mats are provided, a plurality of said cutting mats being disposed at intervals in an up-down direction, said cutting mats having downwardly disposed blades.

4. The roadbed soil sampling assembly according to claim 1, wherein the bottom end of the soil sampling tube forms a downwardly inclined opening.

5. The roadbed soil sampling assembly of claim 1, wherein the fixing frame comprises;

6. The subgrade soil sampling assembly as claimed in claim 1, wherein a mounting ring is arranged on the inner wall of the bottom of the soil sampling cylinder, a plurality of sector plates are arranged on the inner side of the mounting ring, the sector plates are spliced around the central axis of the mounting ring to form a circular plate-shaped structure, and each sector plate is hinged with the mounting ring.

7. The subgrade soil sampling assembly as claimed in claim 1, wherein said pushing assembly includes two hydraulic driving members symmetrically disposed about a central axis of said soil sampling tube, said hydraulic driving members having bottom ends forming said telescoping ends, said telescoping ends respectively abutting a top of said soil sampling tube.

8. The subgrade soil sampling assembly as claimed in claim 1, wherein a lifting handle is provided on the top of the soil sampling barrel.

9. The roadbed soil sampling assembly according to claim 8, wherein the fixing frame is further provided with a push driving piece and a lifting rod;

10. The soil sampling assembly according to claim 9, wherein the fixing frame is provided with a guide groove extending along the up-down direction, the side wall of the lifting rod is provided with a clamping joint corresponding to the guide groove, the clamping joint is clamped and limited with the guide groove in the direction vertical to the up-down direction, and the clamping joint is also matched with the guide groove in an up-down sliding way.