A highway subgrade compactness detection device

Abstract

The utility model discloses a highway roadbed compactness detection device relates to highway roadbed detection technical field, including movable frame, one side of movable frame is equipped with height adjusting mechanism, the height adjusting mechanism includes movable frame, one side fixedly connected with movable plate of movable frame, in the utility model, hydraulic cylinder work drives movable frame to remove, in turn drive movable plate and mounting frame remove, make spiral earth sampler remove downwards, can control the depth of taking earth, simultaneously drive motor work drives spiral earth sampler to rotate, obtain highway roadbed soil sample, through setting up multiple sets of taking earth mechanism and taking earth in different positions, can cover each area of roadbed, more comprehensive overall compaction condition of roadbed is reflected, avoid only from partial position and take earth and lead to one -sided evaluation of roadbed compactness, improve the accuracy of compactness detection.

Description

Technical Field

[0001] This utility model relates to the field of highway subgrade testing technology, and in particular to a highway subgrade compaction testing device. Background Technology

[0002] Compaction degree, also known as compaction degree, refers to the ratio of the dry density of soil or other building materials after compaction to the standard maximum dry density, expressed as a percentage. Compaction degree is one of the key indicators for the quality inspection of roadbed and pavement construction, characterizing the density status after on-site compaction. The higher the compaction degree, the greater the density, and the better the overall performance of the material. The pit-filling sand method is often used to test the compaction degree of highway roadbeds.

[0003] For example, CN219527753U discloses a roadbed compaction testing device for highway engineering, including a base plate, a positioning ring, a support cylinder, a pressure barrel, an insert, a motor, a rotating rod, a scraper, and a sand-filling cylinder; a positioning hole is provided in the middle of the base plate; the positioning ring is set on the base plate; the support cylinder is placed on the base plate, the outer wall of the support cylinder is in contact with the inner wall of the positioning ring, the pressure barrel is slidably set on the inner peripheral wall of the support cylinder in the vertical direction, and multiple sets of support rods are set on the inner wall of the bottom of the pressure barrel.

[0004] In existing technologies, when taking soil samples for compaction testing, most samples are taken from a single location. However, soil samples taken from a single sampling structure may be affected by accidental factors. Due to factors such as construction technology and material distribution, the compaction conditions vary spatially, leading to a one-sided assessment of the roadbed compaction and affecting the compaction test results. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the existing technology that the compaction condition varies spatially due to factors such as construction technology and material distribution, and that the compaction test results of a single soil sampling structure are affected by the soil sampling. Therefore, this invention proposes a highway subgrade compaction test device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a highway subgrade compaction testing device, comprising a movable frame, a height adjustment mechanism installed on one side of the movable frame, the height adjustment mechanism comprising a movable frame, a movable plate fixedly connected to one side of the movable frame, and multiple soil sampling mechanisms installed on one side of the movable plate, each soil sampling mechanism comprising a hollow cylinder and an mounting frame, one side of the hollow cylinder fixedly connected to one side of the movable frame, one side of the mounting frame fixedly connected to one side of the movable plate, a first guide rod slidably connected to the other side of the mounting frame, one end of the first guide rod fixedly connected to the outside of the hollow cylinder, a drive motor fixedly connected to the other side of the mounting frame, the output end of the drive motor passing through the mounting frame and fixedly connected to a spiral soil sampler, one end of the spiral soil sampler passing through the hollow cylinder, and a collection mechanism installed on the outside of the hollow cylinder.

[0007] Preferably, a second guide rod is slidably connected to one side of the movable frame, and a fixed base is fixedly connected to one end of the second guide rod.

[0008] Preferably, one side of the fixed base is fixedly connected to one side of the movable frame, and the other end of the second guide rod is fixedly connected to a fixed plate.

[0009] Preferably, a hydraulic cylinder is fixedly connected to one side of the fixed plate, and one end of the hydraulic cylinder passes through the fixed plate and is fixedly connected to one side of the movable frame.

[0010] Preferably, the collecting mechanism includes clamping plates, two clamping plates are sleeved on the outer surface of the hollow cylinder, one end of the two clamping plates is slidably connected to a guide rail, and one side of the guide rail is fixedly connected to a collecting frame.

[0011] Preferably, a fixing bolt is installed at the other end of the two clamping plates.

[0012] Preferably, a guide ramp is provided above the collection frame, and one side of the guide ramp is fixedly connected to one end of the hollow cylinder.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, the hydraulic cylinder drives the moving frame to move, which in turn drives the moving plate and the mounting frame to move, causing the auger soil sampler to move downwards. The soil sampling depth can be controlled. At the same time, the drive motor drives the auger soil sampler to rotate and obtain roadbed soil samples. By setting up multiple soil sampling mechanisms to take soil samples at different locations, it is possible to cover all areas of the roadbed, more comprehensively reflect the overall compaction status of the roadbed, avoid the one-sided evaluation of the roadbed compaction caused by taking soil samples from only local locations, and improve the accuracy of compaction detection.

[0015] 2. In this utility model, the spiral soil sampler extracts soil by spiraling and conveys the soil sample to the upper end of the hollow cylinder. The guide plate guides the soil sample to the inside of the collection frame. By rotating the fixing bolt, the two clamping plates are separated, and the collection frame containing the soil sample is removed. This facilitates rapid processing of the soil sample, reduces disturbance of the soil sample in the intermediate process, and improves the accuracy of the test. Attached Figure Description

[0016] Figure 1 This utility model provides a first three-dimensional structural schematic diagram of a highway subgrade compaction testing device;

[0017] Figure 2 This utility model provides a second three-dimensional structural schematic diagram of a highway subgrade compaction testing device;

[0018] Figure 3This utility model provides a schematic diagram of the connection structure between the soil sampling mechanism and the collection mechanism of a highway subgrade compaction testing device;

[0019] Figure 4 This utility model provides a schematic diagram of the disassembly structure of the soil sampling mechanism and the collection mechanism of a highway subgrade compaction testing device.

[0020] Legend: 1. Moving frame; 2. Soil sampling mechanism; 21. Hollow cylinder; 22. First guide rod; 23. Mounting frame; 24. Drive motor; 25. Spiral soil sampler; 3. Height adjustment mechanism; 31. Hydraulic cylinder; 32. Moving frame; 33. Moving plate; 34. Fixed base; 35. Second guide rod; 36. Fixed plate; 4. Collection mechanism; 41. Collection frame; 42. Guide ramp; 43. Guide rail; 44. Fixing bolt; 45. Clamping plate. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 - Figure 4As shown, this utility model provides a highway subgrade compaction testing device, including a movable frame 1. A height adjustment mechanism 3 is installed on one side of the movable frame 1. The height adjustment mechanism 3 includes a movable frame 32. A movable plate 33 is fixedly connected to one side of the movable frame 32. Multiple soil sampling mechanisms 2 are installed on one side of the movable plate 33. Each soil sampling mechanism 2 includes a hollow cylinder 21 and a mounting frame 23. One side of the hollow cylinder 21 is fixedly connected to one side of the movable frame 1, and one side of the mounting frame 23 is fixedly connected to one side of the movable plate 33. A first guide rod 22 is slidably connected to the other side of the mounting frame 23. One end of the first guide rod 22 is fixedly connected to the outside of the hollow cylinder 21. The mounting frame 23... On the other side, a drive motor 24 is fixedly connected. The output end of the drive motor 24 passes through the mounting frame 23 and is fixedly connected to a spiral soil sampler 25. One end of the spiral soil sampler 25 passes through a hollow cylinder 21. A collection mechanism 4 is installed on the outside of the hollow cylinder 21. A second guide rod 35 is slidably connected to one side of the moving frame 32. One end of the second guide rod 35 is fixedly connected to a fixed base 34. One side of the fixed base 34 is fixedly connected to one side of the moving frame 1. The other end of the second guide rod 35 is fixedly connected to a fixed plate 36. A hydraulic cylinder 31 is fixedly connected to one side of the fixed plate 36. One end of the hydraulic cylinder 31 passes through the fixed plate 36 and is fixedly connected to one side of the moving frame 32.

[0024] The device is moved to the soil sampling location by the moving frame 1. The hydraulic cylinder 31 operates to drive the moving frame 32 to move. The moving frame 32 slides outside the second guide rod 35. The fixed moving frame 32 makes linear motion. The movement of the moving frame 32 drives the moving plate 33 and the mounting frame 23 to move in sequence, so that the drive motor 24 and the auger soil sampler 25 move. At the same time, the drive motor 24 operates to drive the auger soil sampler 25 to rotate, so that the auger soil sampler 25 works to obtain soil samples from the roadbed. The soil sampling depth can be controlled by controlling the downward movement height of the auger soil sampler 25. By setting up multiple soil sampling mechanisms 2 to take soil samples at different locations, it is possible to cover all areas of the roadbed, more comprehensively reflect the overall compaction status of the roadbed, avoid the one-sided evaluation of the roadbed compaction caused by taking soil samples from only local locations, and improve the accuracy of compaction detection.

[0025] Example 2: Figure 3 and Figure 4 As shown, the collection mechanism 4 includes clamping plates 45. Two clamping plates 45 are fitted onto the outer surface of the hollow cylinder 21. One end of the two clamping plates 45 is slidably connected to a guide rail 43. One side of the guide rail 43 is fixedly connected to a collection frame 41. The other end of the two clamping plates 45 is fitted with a fixing bolt 44. A guide inclined plate 42 is provided above the collection frame 41. One side of the guide inclined plate 42 is fixedly connected to one end of the hollow cylinder 21.

[0026] When the spiral soil sampler 25 performs spiral soil sampling, the soil sample is transported to the upper end of the hollow cylinder 21. The guide plate 42, which is inclined at the top of the hollow cylinder 21, guides the soil sample and sends it into the collection frame 41. By rotating the fixing bolt 44, the two clamping plates 45 are separated. The clamping plates 45 slide outside the guide rail 43, so that the two clamping plates 45 are separated from the hollow cylinder 21 that is in contact with them. The collection frame 41 containing the soil sample is then removed, which facilitates rapid processing of the soil sample, reduces disturbance of the soil sample in the intermediate stage, and improves the accuracy of the test.

[0027] The usage and working principle of this device are as follows: The device is moved to the soil sampling location by the moving frame 1. The hydraulic cylinder 31 drives the moving frame 32 to move, which in turn drives the moving plate 33 and the mounting frame 23 to move, causing the drive motor 24 and the auger soil sampler 25 to move. At the same time, the drive motor 24 drives the auger soil sampler 25 to rotate, so that the auger soil sampler 25 works to obtain roadbed soil samples. The soil sampling depth can be controlled by controlling the downward movement height of the auger soil sampler 25. The auger soil sampler 25 conveys the soil sample to the upper end of the hollow cylinder 21. The inclined guide plate 42 can guide the soil sample and send the soil sample into the inside of the collection frame 41. By rotating the fixing bolt 44, the two clamping plates 45 are separated. The clamping plates 45 slide outside the guide rail 43, so that the two clamping plates 45 are separated from the hollow cylinder 21. The collection frame 41 containing the soil sample is removed, and the soil sample inside is tested.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A highway subgrade compaction testing device, comprising a movable frame (1), characterized in that: A height adjustment mechanism (3) is installed on one side of the mobile frame (1). The height adjustment mechanism (3) includes a moving frame (32). A moving plate (33) is fixedly connected to one side of the moving frame (32). Multiple soil-taking mechanisms (2) are installed on one side of the moving plate (33). The soil-taking mechanism (2) includes a hollow cylinder (21) and a mounting frame (23). One side of the hollow cylinder (21) is fixedly connected to one side of the mobile frame (1), and one side of the mounting frame (23) is fixedly connected to the moving plate (33). On one side, a first guide rod (22) is slidably connected to the other side of the mounting frame (23). One end of the first guide rod (22) is fixedly connected to the outside of the hollow cylinder (21). A drive motor (24) is fixedly connected to the other side of the mounting frame (23). The output end of the drive motor (24) passes through the mounting frame (23) and is fixedly connected to a spiral soil sampler (25). One end of the spiral soil sampler (25) passes through the hollow cylinder (21). A collection mechanism (4) is installed on the outside of the hollow cylinder (21).

2. The highway subgrade compaction testing device according to claim 1, characterized in that: A second guide rod (35) is slidably connected to one side of the movable frame (32), and a fixed base (34) is fixedly connected to one end of the second guide rod (35).

3. The highway subgrade compaction testing device according to claim 2, characterized in that: One side of the fixed base (34) is fixedly connected to one side of the movable frame (1), and the other end of the second guide rod (35) is fixedly connected to a fixed plate (36).

4. The highway subgrade compaction testing device according to claim 3, characterized in that: A hydraulic cylinder (31) is fixedly connected to one side of the fixed plate (36), and one end of the hydraulic cylinder (31) passes through the fixed plate (36) and is fixedly connected to one side of the movable frame (32).

5. The highway subgrade compaction testing device according to claim 1, characterized in that: The collecting mechanism (4) includes clamping plates (45), two clamping plates (45) are sleeved on the outer surface of the hollow cylinder (21), one end of the two clamping plates (45) is slidably connected to a guide rail (43), and a collecting frame (41) is fixedly connected to one side of the guide rail (43).

6. The highway subgrade compaction testing device according to claim 5, characterized in that: The other end of the two clamping plates (45) is fitted with fixing bolts (44).

7. The highway subgrade compaction testing device according to claim 5, characterized in that: A guide plate (42) is provided above the collection frame (41), and one side of the guide plate (42) is fixedly connected to one end of the hollow cylinder (21).

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