A subgrade detection device for cold region road engineering

Abstract

This utility model belongs to the technical field of roadbed testing equipment, and in particular, it is a roadbed testing device for road engineering in cold regions. It includes a carrier, an oil tank, an engine, and a control handle. The oil tank is located inside the rear end of the carrier, the engine is located at the same rear end as the carrier, and the control handle is located at the upper end of the carrier. This utility model incorporates a sampling series shaft, a cam sampling block, a separator ring, a drive wheel, a driven wheel, a track, and a sample storage box. The engine controls the drive wheel to drive the track. During the movement of the carrier, the motor drives the sampling series shaft to rotate. When the sampling series shaft rotates, it drives the peripheral cam sampling block to rotate synchronously. The protruding end of the cam sampling block contacts the soil and digs it up. During continuous rotation, the sample is thrown into the rear sample storage box. The sampling frequency is adjusted by controlling the motor speed until the sample collection is complete. Adjusting the sampling frequency by the motor ensures uniform sampling spacing and improves sample generality.

Description

Technical Field

[0001] This utility model relates to the technical field of roadbed testing equipment, specifically a roadbed testing device for road engineering in cold regions. Background Technology

[0002] The subgrade testing for road engineering in cold regions mainly involves a comprehensive assessment of the subgrade's temperature field, deformation, bearing capacity, and stability to ensure the safety and durability of the road under extreme climatic conditions.

[0003] In cold regions, subgrade testing is particularly important for road engineering projects because low temperatures can cause frost heave and thaw settlement in the subgrade soil, thus affecting the stability and service life of the road. During testing, temperature sensors and other equipment are typically used to monitor the subgrade temperature field, analyzing the patterns of internal temperature changes and their impact on subgrade stability. Simultaneously, subgrade deformation is observed, including settlement and heave, to assess the subgrade's bearing capacity and stability. Furthermore, testing involves measuring parameters such as soil density and moisture content, as well as checking the subgrade's drainage performance to ensure it maintains good performance under extreme climatic conditions.

[0004] The existing technology has the following shortcomings: In the existing technology, the "subgrade testing device for road engineering in cold regions" published by CN220035370U "includes a workbench, the upper end face of the workbench is provided with a limit frame, the limit frame is provided with a lifting plate, the lifting plate is provided with a drive motor, the output end of the drive motor is provided with a transmission disk, the bottom of the transmission disk is symmetrically provided with two semi-cylinders, a transmission component is provided between the two semi-cylinders, and the bottom of the semi-cylinders is provided with serrations.

[0005] When the drive motor is working, the semi-cylinder falls into the base, and then the lifting plate rises to bring the sample out. At this time, the first rotating wheel is rotated and the first transmission rod separates the two semi-cylinders, so that the sample can be taken out completely. However, this structure uses the traditional fixed-point sampling method for sampling. This method is not only difficult to control the sampling interval, but also requires the sampling device to be rearranged every time the sampling position is changed. Moreover, it is entirely done manually, resulting in low sampling efficiency and insufficient sample universality, which leads to inaccurate test results. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a roadbed testing device for road engineering in cold regions, which solves the problems of low efficiency and low accuracy of manual sampling.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a roadbed testing device for cold-region road engineering, comprising a carrier, an oil tank, an engine, and a control handle. The oil tank is located inside the rear end of the carrier, the engine is located at the same rear end as the carrier, the control handle is located at the upper end of the carrier, and a motor is located at the bottom of the carrier.

[0008] A sampling series shaft is provided on the side of the motor.

[0009] The sampling series shaft also includes a cam sampling block and a separator ring. The cam sampling block is sleeved on the outer end face of the sampling series shaft, and the separator ring is sleeved on the outer periphery of the sampling series shaft near the middle.

[0010] As a preferred technical solution of this utility model, the cam sampling block is provided in four groups, and each two groups are arranged on the left and right sides of the separator ring.

[0011] As a preferred technical solution of this utility model, the external structure of the cam sampling block is cam-shaped, wherein an inward groove structure is provided near the end side, and the opening of the groove structure is oriented in a direction corresponding to the rotation direction of the cam sampling block.

[0012] As a preferred technical solution of this utility model, the carrier further includes a drive wheel, a driven wheel, a track, and a sample storage box. Both the drive wheel and the driven wheel are provided with a shaft structure on their side ends, and the drive wheel is movably connected to the engine through the shaft structure.

[0013] As a preferred embodiment of this utility model, the track is sleeved around the drive wheel and the driven wheel, and the sample storage box is fixedly installed on the exterior of the carrier near the front end.

[0014] As a preferred technical solution of this utility model, the upper end of the sample storage box is provided with a sealing cover, and four sets of through holes are opened on the side facing the cam sampling block, and the position of the through holes corresponds to the four sets of cam sampling blocks.

[0015] As a preferred technical solution of this utility model, a bearing structure is provided at the end of the sampling series shaft away from the motor, and the bearing structure is embedded inside the mounting carrier.

[0016] Compared with the prior art, this utility model provides a roadbed testing device for road engineering in cold regions, which has the following beneficial effects:

[0017] A roadbed testing device for cold-region road engineering includes a sampling cascade shaft, a cam sampling block, a separator ring, a drive wheel, a driven wheel, a track, and a sample storage box. In use, the operator places the device on the roadbed to be tested and controls the motor and engine via a hand-held control handle. The engine controls the drive wheel to move the track, causing the carrier to move. During the movement of the carrier, the operator starts the motor, which drives the sampling cascade shaft to rotate. As the sampling cascade shaft rotates, it causes the outer cam sampling block to rotate synchronously. The cam sampling block's protruding end contacts the soil and digs it up, throwing the sample into the sample storage box behind it during continuous rotation. The sampling frequency is adjusted by controlling the motor's speed until the sample collection is complete.

[0018] Through the above settings and procedures, the equipment can automatically extract samples according to the testing needs when conducting roadbed testing. Compared with the current fixed sampling method, the mobile sampling method adopted in this solution uses a motor to adjust the sampling frequency, ensuring uniform sampling spacing, improving sample universality, and thus improving the detection accuracy. Moreover, the efficiency of automated mobile sampling is much higher than that of fixed-point sampling. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the mounting structure of the carrier chassis and motor of this utility model;

[0021] Figure 3 This is a schematic diagram of the rear end structure of the carrier of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection position of the front end of the carrier and the sampling serial shaft of this utility model;

[0023] Figure 5 This is a schematic diagram of the overall structure of the cam sampling block of this utility model.

[0024] In the diagram: 1. Carrier; 101. Drive wheel; 102. Driven wheel; 103. Track; 104. Sample storage box; 2. Fuel tank; 3. Engine; 4. Control handle; 5. Motor; 6. Sampling cascade shaft; 601. Cam sampling block; 602. Separator ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In this embodiment: a roadbed testing device for cold region road engineering includes a carrier 1, an oil tank 2, an engine 3 and a control handle 4. The oil tank 2 is located inside the rear end of the carrier 1, the engine 3 is located at the same rear end of the carrier 1 on the same side, the control handle 4 is located at the upper end of the carrier 1, and a motor 5 is located at the bottom of the carrier 1.

[0027] A sampling series shaft 6 is provided on the side end of motor 5.

[0028] The sampling series shaft 6 also includes a cam sampling block 601 and a separator ring 602. The cam sampling block 601 is sleeved on the outer end face of the sampling series shaft 6, and the separator ring 602 is sleeved on the outer periphery of the sampling series shaft 6 near the middle.

[0029] In this embodiment, four sets of cam sampling blocks 601 are provided, and each pair of sets are provided on the left and right sides of the separating ring 602. The external structure of the cam sampling block 601 is cam-shaped, and an inward groove structure is provided near the end side, and the opening of the groove structure is oriented in a direction corresponding to the rotation direction of the cam sampling block 601.

[0030] Specifically, such as Figure 1 and Figure 3 as well as Figure 5 As shown, the outer opening of the cam sampling block 601 corresponds to the rotation direction. When rotating, it performs a digging action at the opening and digs up the sample during continuous rotation.

[0031] In this embodiment, the carrier 1 also includes a drive wheel 101, a driven wheel 102, a track 103, and a sample storage box 104. Both the drive wheel 101 and the driven wheel 102 have a shaft structure on their side ends. The drive wheel 101 is movably connected to the engine 3 through the shaft structure. The track 103 is sleeved around the drive wheel 101 and the driven wheel 102. The sample storage box 104 is fixedly installed on the outside of the carrier 1 near the front end.

[0032] Specifically, such as Figure 2 and Figure 4 As shown, the drive wheel 101 and driven wheel 102 are provided with a shaft structure on their side, so that the drive wheel 101 and driven wheel 102 have lateral support and can rotate at the same time, and drive the outer track 103 to move synchronously.

[0033] In this embodiment, a sealing cover is provided on the upper end of the sample storage box 104, and four sets of through holes are provided on the side facing the cam sampling block 601, and the position of the through holes corresponds to the four sets of cam sampling blocks 601; a bearing structure is provided at the end of the sampling series shaft 6 away from the motor 5, and the bearing structure is embedded in the container 1.

[0034] The working principle and usage process of this utility model are as follows: When using this device, the operator places it on the roadbed to be tested and controls the motor 5 and engine 3 by holding the control handle 4. The engine 3 controls the drive wheel 101 to drive the track 103, causing the carrier 1 to move. During the movement of the carrier 1, the operator controls the motor 5 to start, and the motor 5 drives the sampling series shaft 6 to rotate. When the sampling series shaft 6 rotates, it drives the peripheral cam sampling block 601 to rotate synchronously. After the convex end of the cam sampling block 601 contacts the soil, it digs it up and throws the sample into the sample temporary storage box 104 at the rear during continuous rotation. The sampling frequency is adjusted by controlling the speed of the motor 5 until the sample sampling is completed.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A roadbed testing device for cold-region road engineering, comprising a mounting carrier (1), a fuel tank (2), an engine (3), and a control handle (4), wherein the fuel tank (2) is disposed inside the rear end of the mounting carrier (1), the engine (3) is disposed at the same rear end of the mounting carrier (1), the control handle (4) is disposed at the upper end of the mounting carrier (1), and a motor (5) is disposed at the bottom of the mounting carrier (1), characterized in that: The motor (5) is provided with a sampling series shaft (6) on its side end; The sampling serial shaft (6) also includes a cam sampling block (601) and a separator ring (602). The cam sampling block (601) is sleeved on the outer end face of the sampling serial shaft (6), and the separator ring (602) is sleeved on the outer periphery of the sampling serial shaft (6) near the middle.

2. The roadbed testing device for cold-region road engineering according to claim 1, characterized in that: The cam sampling block (601) is provided in four groups, and each pair of groups is provided on the left and right sides of the separator ring (602).

3. The roadbed testing device for cold-region road engineering according to claim 1, characterized in that: The external structure of the cam sampling block (601) is cam-shaped, with an inward groove structure near the end side, and the opening of the groove structure is oriented in a direction corresponding to the rotation direction of the cam sampling block (601).

4. The roadbed testing device for cold-region road engineering according to claim 1, characterized in that: The carrier (1) also includes a drive wheel (101), a driven wheel (102), a track (103), and a sample storage box (104). The drive wheel (101) and the driven wheel (102) are both provided with a shaft structure on their side ends. The drive wheel (101) is movably connected to the engine (3) through the shaft structure.

5. A roadbed testing device for cold-region road engineering according to claim 4, characterized in that: The track (103) is sleeved around the drive wheel (101) and driven wheel (102), and the sample storage box (104) is fixedly installed on the outside of the carrier (1) near the front end.

6. The roadbed testing device for cold-region road engineering according to claim 4, characterized in that: The sample storage box (104) is equipped with a sealing cover at the top, and four sets of through holes are opened on the side facing the cam sampling block (601), and the position of the through holes corresponds to the four sets of cam sampling blocks (601).

7. A roadbed testing device for cold-region road engineering according to claim 1, characterized in that: The sampling cascade shaft (6) is provided with a bearing structure at the end of the side away from the motor (5), and the bearing structure is embedded inside the mounting carrier (1).

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