Roadbed detection device
The sampling assembly, which combines spiral blades and a cutting blade, solves the problem of soil sample mixing and enables clear roadbed detection.
Patent Information
- Application Number
- CN202422491703.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-15
AI Technical Summary
Existing sampling equipment often results in soil samples being mixed during sampling, making it difficult to perform clear testing.
A sampling assembly with spiral blades and a blade is used. The blade is separated by centrifugal force, the spiral blade is inserted into the soil to collect the sample, the blade closes to prevent the sample from falling, and the sample is ejected by air pressure.
It enables the separation and extraction of soil samples from different depths, avoiding sample mixing and ensuring the accuracy of testing.
Smart Images
Figure CN223176695U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of subgrade detection, in particular to a subgrade detection device. Background Technique
[0002] The subgrade is the foundation of the track or road surface, and is a geotechnical structure formed by excavation or filling. The main function of the subgrade is to provide necessary conditions for the laying of the track or road surface and the operation of trains or vehicles, and to bear the static and dynamic loads of the track and rolling stock or the road surface and traffic loads. At the same time, the loads are transmitted and diffused deep into the foundation. Therefore, the quality of the subgrade directly affects the service life of the subsequent road surface. In order to understand the basic situation of the subgrade before building the road, the subgrade is generally sampled and detected to know the various property conditions in the subgrade, which is convenient for subsequent road construction.
[0003] At present, most of the sampling machines commonly used directly use a spiral drill rod to drill and sample the subgrade. Although this sampling method can obtain some soil samples, when the soil samples are taken out, they will be mixed together, making it difficult to detect. Content of the Utility Model
[0004] (1) Technical Problems to be Solved
[0005] In view of the deficiencies of the prior art, the utility model provides a subgrade detection device, which has the advantage of being able to obtain clear sampling results, and solves the problem that soil samples are easily mixed when the existing sampling equipment samples the subgrade.
[0006] (2) Technical Solutions
[0007] To achieve the above object, the utility model provides the following technical solution: A subgrade detection device includes a base, a platform is arranged above the base, the platform can slide up and down relative to the base, a rotating shaft is inserted at the center position of the platform, the rotating shaft is rotatably connected to the platform, a power component is arranged above the platform, the power component drives the rotating shaft to rotate, and a sampling component is installed after the lower end of the rotating shaft penetrates the platform.
[0008] In some embodiments, the sampling component includes an outer cylinder, a spiral blade is fixedly connected to the outside of the outer cylinder, the outer cylinder is fixed to the lower end of the rotating shaft, a plurality of blades are installed at the bottom end of the outer cylinder, the outer ends of the blades are close to each other when not stressed, two arc-shaped covers are arranged inside the outer cylinder, a top plug is arranged at the upper end inside the outer cylinder, the upper ends of the two arc-shaped covers are inserted into the bottom of the top plug, the two arc-shaped covers are combined to form a pipe shape, and the bottom end of the arc-shaped cover fits with the inner wall of the outer cylinder.
[0009] In some embodiments, the upper end of the outer cylinder is a closed structure, and an air inlet valve is installed at the upper end of the outer cylinder. Inflating the air inlet valve can push the top plug inside the outer cylinder to move down.
[0010] In some embodiments, the blade is hinged to the bottom end of the outer cylinder, and a torsion spring is installed at the hinged position of the two.
[0011] In some embodiments, sliding rods are fixedly installed at the four corners of the upper surface of the base, and the upper ends of the sliding rods all penetrate through the platform, and the sliding rods are slidably connected to the platform.
[0012] In some embodiments, a perforation communicating up and down is formed at the central position of the base, and the sampling assembly penetrates through the perforation.
[0013] In some embodiments, a plurality of support columns are fixedly installed at the bottom end of the base.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, the present utility model provides a subgrade detection device, which has the following beneficial effects:
[0016] 1. For this subgrade detection device, by setting the sampling assembly, when the sampling assembly rotates, the blades at its lower part will separate, and then the spiral blade can drive the outer cylinder to insert into the soil for sampling. When sampling, the soil will enter the two arc-shaped covers. When the outer cylinder is lifted, the blades will close to prevent the soil inside the arc-shaped covers from falling. When the two arc-shaped covers are pushed out, the sample can be well preserved. Thus, when sampling for subgrade detection, the soil at different depths will not be mixed together after being taken out.
[0017] 2. For this subgrade detection device, by setting the power assembly, the power assembly can drive the outer cylinder to rotate, and the base can be firmly supported on the ground of the subgrade to prevent deviation. And by setting the air inlet valve, after sampling is completed, air pressure can be used to push the top plug so that the two outer cylinders eject themselves, avoiding the problem of sample damage caused by knocking in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic structural diagram of the present utility model;
[0019] Figure 2 is a structural sectional view of the present utility model;
[0020] Figure 3 is a structural diagram of the sampling assembly of the present utility model;
[0021] Figure 4 is a structural sectional view of the sampling assembly of the present utility model.
[0022] In the figure: 1 - base; 2 - platform; 3 - rotating shaft; 4 - power assembly; 5 - sampling assembly; 6 - outer cylinder; 7 - spiral blade; 8 - blade; 9 - arc-shaped cover; 10 - top plug; 11 - air inlet valve; 12 - sliding rod; 13 - perforation; 14 - support column. Detailed implementation manners
[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.
[0024] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indications will also change accordingly.
[0025] In the present application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.
[0026] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.
[0027] In the related art, most of the commonly used sampling machines directly use a spiral drill rod to drill and sample the roadbed. Although this sampling method can obtain some soil samples, when the samples are taken out, the soil samples will be mixed together, making it difficult to detect.
[0028] To solve the problems in the related art to a certain extent, the embodiments of the present application provide a roadbed detection device. When in use, only need to control the power component 4 to drive the rotating shaft 3 to rotate, so that the outer cylinder 6 rotates. The blades 8 at its lower part will be separated by centrifugal force, and then the spiral blade 7 can drive the outer cylinder 6 to insert into the soil for sampling. When sampling, the soil will enter between the two arc-shaped covers 9. When the outer cylinder 6 is lifted, due to the lifting resistance, the blades 8 will close, and it is difficult for the soil between the two arc-shaped covers 9 to fall off. After the sampling is completed, use air pressure to push the top plug 10 to make the two outer cylinders 6 push out by themselves, ensuring that the samples are not scattered.
[0029] The following describes the present application with reference to the accompanying drawings and specific embodiments:
[0030] Combined with Figures 1-4 In an embodiment of the present application, a subgrade detection device is provided, including a base 1. Above the base 1, there is a platform 2 which can slide up and down relative to the base 1. A rotating shaft 3 is inserted at the central position of the platform 2, and the rotating shaft 3 is rotatably connected to the platform 2. Above the platform 2, there is a power assembly 4 which drives the rotating shaft 3 to rotate. After the lower end of the rotating shaft 3 penetrates the platform 2, a sampling assembly 5 is installed.
[0031] In this implementation: The power assembly 4 is composed of a motor and a reducer, or a gasoline engine can also be used to provide power, aiming to rotate the rotating shaft 3. A handle can also be installed on the power assembly 4 to facilitate the operation of the user.
[0032] In some embodiments, the sampling assembly 5 includes an outer cylinder 6. A spiral blade 7 is fixedly connected to the outside of the outer cylinder 6. The outer cylinder 6 is fixed to the lower end of the rotating shaft 3. A plurality of blades 8 are installed at the bottom end of the outer cylinder 6. When the blades 8 are not stressed, their outer ends are close to each other. Inside the outer cylinder 6, there are two arc-shaped covers 9. At the upper end of the inside of the outer cylinder 6, there is a top plug 10. The upper ends of the two arc-shaped covers 9 are inserted into the bottom of the top plug 10. The two arc-shaped covers 9 are combined to form a pipe shape, and the bottom end of the arc-shaped cover 9 is attached to the inner wall of the outer cylinder 6.
[0033] Specifically, when the outer cylinder 6 and the spiral blade 7 rotate together, the effect of drilling soil can be achieved. When the arc-shaped covers 9 are taken out, the two can be separated, and at this time, soil samples at different depths can be taken out.
[0034] In some embodiments, the upper end of the outer cylinder 6 is a closed structure. An air inlet valve 11 is installed at the upper end of the outer cylinder 6. When the air inlet valve 11 is inflated, it can push the top plug 10 inside the outer cylinder 6 to move downward.
[0035] Specifically, the air inlet valve 11 is an air inlet structure and needs to be connected to an air pump during use, and the outer wall of the top plug 10 cooperates with the inner wall of the outer cylinder 6.
[0036] In some embodiments, the blade 8 is hinged to the bottom end of the outer cylinder 6, and a torsion spring is installed at the hinged position of the two.
[0037] Specifically, the blade 8 has a certain length. When it receives centrifugal force, the tips of all the blades 8 will move away from each other. When not stressed, the reaction force of the torsion spring will make the blade 8 return to its original position.
[0038] In some embodiments, at the four corners of the upper surface of the base 1, slide rods 12 are fixedly installed. The upper ends of the slide rods 12 all penetrate the platform 2, and the slide rods 12 are slidably connected to the platform 2.
[0039] Specifically, the slide rods 12 are mainly provided to limit the platform 2 so that the platform 2 moves along a straight line in the longitudinal direction.
[0040] In some embodiments, a through hole 13 that communicates up and down is formed at the center of the base 1, and the sampling assembly 5 passes through the through hole 13.
[0041] In some embodiments, a plurality of support columns 14 are fixedly installed at the bottom end of the base 1.
[0042] Specifically, the support columns 14 at the bottom of the base 1 can firmly fix the base 1 on the ground, and during drilling, it will not shift, improving the accuracy of the data during drilling.
[0043] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.
[0044] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of the technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0045] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A subgrade detection device, characterized in that: It includes a base (1), a platform (2) is provided above the base (1), the platform (2) can slide up and down relative to the base (1), a rotating shaft (3) is inserted at the central position of the platform (2), the rotating shaft (3) is rotatably connected to the platform (2), a power assembly (4) is provided above the platform (2), the power assembly (4) drives the rotating shaft (3) to rotate, and a sampling assembly (5) is installed after the lower end of the rotating shaft (3) penetrates the platform (2).
2. The subgrade detection device according to claim 1, wherein: The sampling assembly (5) includes an outer cylinder (6), a spiral blade (7) is fixedly connected to the outside of the outer cylinder (6), the outer cylinder (6) is fixed to the lower end of the rotating shaft (3), a plurality of blades (8) are installed at the bottom end of the outer cylinder (6), and the outer ends of the blades (8) are close to each other when not stressed. Two arc-shaped covers (9) are provided inside the outer cylinder (6), a top plug (10) is provided at the upper end inside the outer cylinder (6), the upper ends of the two arc-shaped covers (9) are inserted into the bottom of the top plug (10), and the bottom end of the arc-shaped cover (9) fits against the inner wall of the outer cylinder (6).
3. The subgrade detection device according to claim 2, wherein: The upper end of the outer cylinder (6) is of a closed structure, an air inlet valve (11) is installed at the upper end of the outer cylinder (6), and the inflation of the air inlet valve (11) can push the top plug (10) inside the outer cylinder (6) to move downwards.
4. The subgrade detection device according to claim 2, wherein: The blade (8) is hinged to the bottom end of the outer cylinder (6), and a torsion spring is installed at the hinged position of the two.
5. The subgrade detection device according to claim 1, characterized in that: Four corners of the upper surface of the base (1) are fixedly provided with slide rods (12), the upper ends of the slide rods (12) penetrate the platform (2), and the slide rods (12) are slidably connected to the platform (2).
6. The subgrade detection device according to claim 1, characterized in that: A vertically communicating through hole (13) is opened at the central position of the base (1), and the sampling assembly (5) penetrates the through hole (13).
7. The subgrade detection device according to claim 1, wherein: A plurality of support columns (14) are fixedly installed at the bottom end of the base (1).