Roadbed pavement compactness detection device

Abstract

The utility model relates to the technical field of road construction, in particular to a roadbed and pavement compactness detection device which comprises a moving vehicle, a stop lever, a lifting assembly, a driving assembly and a limiting assembly. The lifting assembly is mounted on one side of the top end of the moving vehicle, and the bottom end of the inner side of the lifting assembly is provided with a hole opening cylinder used for sampling soil of a roadbed and a road surface in a use state; the driving assembly is mounted in the middle of the lifting assembly; the stop lever is installed at the top end of the inner side of the lifting assembly, and the bottom end is inserted into the middle of the tapping cylinder. The limiting assembly is installed in the middle of the lifting assembly and at the top end of the tapping cylinder. According to the utility model, when the driving assembly rotates the tapping cylinder, the lifting driving assembly drives the tapping cylinder to go deep into soil for sampling work, and the tapping cylinder is moved upwards through the lifting assembly, so that a soil sample in the tapping cylinder is moved to the lower part of the tapping cylinder by the stop lever and is separated from the tapping cylinder, and the sample is completely collected; the sample extraction convenience and the detection precision are improved.

Description

Technical Field

[0001] This utility model relates to the field of road construction technology, specifically to a roadbed and pavement compaction testing device. Background Technology

[0002] Subgrade compaction degree is one of the key indicators for testing the construction quality of subgrade and pavement. It represents the density after on-site compaction. The higher the compaction degree, the greater the density, and the better the overall performance of the material.

[0003] Chinese patent document CN221441462U discloses an intelligent roadbed and pavement compaction testing device, including a base and an open cylinder. Several fixed seats are welded to the upper surface of the base. A hydraulic rod is welded to the upper surface of each fixed seat. A lifting plate is welded to the upper surface of each hydraulic rod. A rotating seat is welded to the lower surface of the lifting plate. A rotating groove is provided on the inner surface of the rotating seat. A rotating block is fitted into the inner surface of the rotating groove. A rotating plate is welded to the lower surface of the rotating block. A mounting base is welded to the lower surface of the rotating plate. The open cylinder is welded to the lower surface of the mounting base. A connecting shaft is welded to the upper surface of the rotating plate. An open motor base is welded to the upper surface of the lifting plate.

[0004] However, in the above scheme, when sampling through the perforated tube, the soil sample is easily stuck on the inner wall of the perforated tube, and it is necessary to knock the perforated tube to separate the soil sample from the perforated tube, which makes soil sample extraction inconvenient. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a roadbed and pavement compaction testing device.

[0006] The technical solution of this utility model is: a roadbed and pavement compaction testing device, comprising a mobile vehicle, a stop bar, a lifting assembly, a drive assembly, and a limiting assembly;

[0007] The lifting assembly is installed on one side of the top of the mobile vehicle, and the bottom inner side of the lifting assembly is provided with an opening cylinder for taking soil samples from the roadbed and pavement during use.

[0008] The drive assembly is installed in the middle of the lifting assembly and one end is connected to the perforated cylinder;

[0009] The stop lever is installed on the inner top of the lifting assembly and its bottom end is inserted into the middle of the perforated cylinder;

[0010] The limit component is installed in the middle of the lifting component and at the top of the opening cylinder.

[0011] Preferably, the lifting assembly includes a bracket, a telescopic rod, and a mounting plate;

[0012] The bracket is installed on one side of the top of the mobile vehicle;

[0013] The number of telescopic poles is at least one, and the telescopic pole is installed at the top of the bracket and extends towards the mobile vehicle at its end;

[0014] The mounting plate is installed at the end of the telescopic rod and is rotatably connected to the perforated cylinder.

[0015] Preferably, the bracket has slide rails on both sides inside, and the mounting plate has grooves at both ends. When the mounting plate and the bracket are installed together, the slide rails are accommodated in the grooves.

[0016] Preferably, the perforated cylinder includes a connecting tube and a cutting cylinder;

[0017] The connecting pipe is rotatably installed in the middle of the mounting plate and sleeved on the outside of the stop bar;

[0018] The cutter barrel is installed at the bottom of the connecting pipe.

[0019] Preferably, the drive assembly includes a motor and a chain drive structure;

[0020] The motor is mounted on the top of the mounting plate;

[0021] The two ends of the chain drive structure are respectively installed on the outside of the connecting pipe and on the output shaft of the motor.

[0022] Preferably, the limiting component includes a limiting plate and a bullseye wheel;

[0023] There are multiple bullseye wheels, which are respectively set at the upper and lower ends of the mounting plate and located on the outside of the connecting tube;

[0024] There are two limiting plates, which are respectively installed at both ends of the connecting pipe and located above and below the mounting plate, and are rolledly connected to the bullseye wheel.

[0025] Preferably, a notch is provided on one side of the top of the mobile vehicle, and the cutter barrel is located inside the notch, with the size of the notch being larger than the size of the outer side of the cutter barrel.

[0026] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0027] This invention uses a drive assembly to rotate the perforated cylinder while a lifting drive assembly moves the perforated cylinder deeper into the soil for sampling. The lifting assembly then moves the perforated cylinder upwards, causing a stop bar inside the perforated cylinder to move the soil sample downwards and separate it from the perforated cylinder, thus ensuring complete sample collection and improving the convenience of sample extraction and the accuracy of detection. Attached Figure Description

[0028] Figure 1-2 All of these are perspective views of one embodiment of the present utility model.

[0029] Figure 3 This is an exploded view of the drive component and limiting component structure in one embodiment of the present invention.

[0030] Figure 4 This is a cross-sectional schematic diagram of the perforated cylinder structure in one embodiment of the present invention.

[0031] Reference numerals: 1. Moving vehicle; 2. Opening cylinder; 21. Connecting pipe; 22. Cutter cylinder; 3. Limiting plate; 4. Bullseye wheel; 5. Slide groove; 6. Slide rail; 7. Bracket; 8. Telescopic rod; 9. Motor; 10. Stop bar; 11. Chain drive structure; 12. Mounting plate; 13. Notch. Detailed Implementation

[0032] Example 1

[0033] like Figure 1-4 As shown, the present invention proposes a roadbed and pavement compaction testing device, which includes a mobile vehicle 1, a stop bar 10, a lifting assembly, a driving assembly, and a limiting assembly;

[0034] The lifting assembly is installed on one side of the top of the mobile vehicle 1. The bottom inner side of the lifting assembly is provided with an opening cylinder 2 for taking soil samples from the roadbed and pavement during use.

[0035] The drive assembly is installed in the middle of the lifting assembly and one end is connected to the perforated cylinder 2. It is used to rotate the perforated cylinder 2 on the lifting assembly during use, and to extend the rotating perforated cylinder 2 into the soil for sampling.

[0036] The stop bar 10 is installed on the inner top of the lifting assembly and the bottom end is inserted into the middle of the perforated cylinder 2. It is used to slide inside the perforated cylinder 2 during use and to block the soil sample inside the perforated cylinder 2 after sampling, so that the soil sample inside the perforated cylinder 2 moves to the outside of the perforated cylinder 2, making the extraction of soil sample more convenient.

[0037] The limiting component is installed in the middle of the lifting component and at the top of the opening cylinder 2. It is used to limit the position of the opening cylinder 2 during use and prevent the opening cylinder 2 from moving up and down in the lifting component.

[0038] In this embodiment, the perforated cylinder 2 is moved to the sampling position by the mobile vehicle 1, and the perforated cylinder 2 is rotatably mounted in the middle of the lifting assembly. The drive assembly is connected to the perforated cylinder 2 in the middle of the lifting assembly, so that the drive assembly rotates the perforated cylinder 2 on the lifting assembly. The lifting drive assembly drives the perforated cylinder 2 to move towards the roadbed surface, so that the rotating perforated cylinder 2 penetrates into the soil and performs sampling. Then, the lifting assembly moves the perforated cylinder 2 upward, so that the perforated cylinder 2 moves outside the stop bar 10. At the same time, the stop bar 10 contacts the soil sample inside the perforated cylinder 2 and blocks it, so that the soil sample inside the perforated cylinder 2 moves downward and separates from the perforated cylinder 2, so that the sample is collected completely, improving the convenience of sample extraction and the accuracy of detection.

[0039] Example 2

[0040] like Figure 1-2 As shown, the present invention proposes a roadbed and pavement compaction testing device. Compared with the first embodiment, the difference in this embodiment is that the lifting assembly includes a bracket 7, a telescopic rod 8, and a mounting plate 12.

[0041] The bracket 7 is installed on one side of the top of the mobile vehicle 1;

[0042] The number of telescopic rods 8 is at least one. The telescopic rod 8 is installed on the top of the bracket 7 and its end extends toward the moving vehicle 1. It is used to move the perforated tube 2 up and down on the bracket 7 during use.

[0043] Mounting plate 12 is installed at the end of telescopic rod 8 and connected to bearing of perforated cylinder 2, so as to allow perforated cylinder 2 to rotate on mounting plate 12.

[0044] In an optional embodiment, slide rails 6 are provided on both sides of the inside of the bracket 7, and slide grooves 5 are provided at both ends of the mounting plate 12. When the mounting plate 12 and the bracket 7 are installed together, the slide rails 6 are accommodated in the slide grooves 5, which are used to move the mounting plate 12 smoothly up and down inside the bracket 7 during use.

[0045] In this embodiment, the mounting plate 12 is connected to the bearing of the perforated cylinder 2, so that the perforated cylinder 2 can rotate smoothly in the bracket 7. The mounting plate 12 is moved up and down inside the bracket 7 by the telescopic rod 8, so that the perforated cylinder 2 can perform sampling and storage work.

[0046] Example 3

[0047] like Figure 4 As shown, the present invention proposes a roadbed and pavement compaction testing device. The difference between this embodiment and the first embodiment is that the perforated cylinder 2 includes a connecting pipe 21 and a cutter cylinder 22.

[0048] The connecting pipe 21 is rotatably installed in the middle of the mounting plate 12 and sleeved on the outside of the baffle 10. It is used to connect with the drive assembly during use and slides on the outside of the baffle 10 during storage, so that the end of the baffle 10 blocks the sampled soil.

[0049] The cutter barrel 22 is installed at the bottom of the connecting pipe 21 and is used to take samples deep into the soil during use.

[0050] In this embodiment, the connecting pipe 21 is rotatably mounted on the mounting plate 12 and connected to the drive component, so that the drive component drives the connecting pipe 21 to rotate, thereby causing the cutter barrel 22 to rotate synchronously, so that the cutter barrel 22 can penetrate deep into the soil for sampling.

[0051] Example 4

[0052] like Figure 3 As shown, the present invention proposes a roadbed and pavement compaction testing device. The difference between this embodiment and the first embodiment is that the driving component includes a motor 9 and a chain drive structure 11.

[0053] Motor 9 is mounted on the top of mounting plate 12;

[0054] The two ends of the chain drive structure 11 are respectively installed on the outside of the connecting pipe 21 and on the output shaft of the motor 9.

[0055] In an optional embodiment, a notch 13 is provided on one side of the top of the mobile carriage 1, and the knife cylinder 22 is located inside the notch 13. The size of the notch 13 is larger than the outer size of the knife cylinder 22. This is used to separate the perforated cylinder 2 from the mobile carriage 1 during use, to avoid friction between the perforated cylinder 2 and the mobile carriage 1, and to make it easy to pick up the sample inside the perforated cylinder 2 from the notch 13, thereby reducing the rising height of the perforated cylinder 2.

[0056] In this embodiment, the motor 9 starts the chain drive structure 11 to operate, so that the chain drive structure 11 drives the connecting pipe 21 to rotate on the mounting plate 12, thereby making the connecting pipe 21 and the cutter barrel 22 rotate synchronously, ensuring that the cutter barrel 22 penetrates deep into the soil for sampling.

[0057] Example 5

[0058] like Figure 3 As shown, the present invention proposes a roadbed and pavement compaction testing device. The difference between this embodiment and the first embodiment is that the limiting component includes a limiting plate 3 and a bullseye wheel 4.

[0059] There are multiple bullseye wheels 4, which are respectively arranged at the upper and lower ends of the mounting plate 12 and located on the outside of the connecting pipe 21;

[0060] There are two limiting plates 3. The two limiting plates 3 are respectively installed at both ends of the connecting pipe 21 and are located above and below the mounting plate 12 and are in rolling connection with the bullseye wheel 4.

[0061] In this embodiment, by installing the bullseye wheel 4 at the upper and lower ends of the mounting plate 12 respectively, and by mounting the limiting plate 3 on the connecting pipe 21 and rolling it with the bullseye wheel 4, the cooperation between the limiting plate 3 and the bullseye wheel 4 limits the position of the connecting pipe 21 on the mounting plate 12, ensuring that the connecting pipe 21 and the knife cylinder 22 operate stably during the sampling process, avoiding sampling errors caused by equipment shaking, and improving detection accuracy.

[0062] In this invention, the perforated cylinder 2 is moved to the sampling position by the mobile vehicle 1. The motor 9 starts the chain drive structure 11, which drives the connecting pipe 21 to rotate on the mounting plate 12. This causes the connecting pipe 21 and the blade cylinder 22 to rotate synchronously on the mounting plate 12. The telescopic rod 8 moves the mounting plate 12 downward, allowing the rotating blade cylinder 22 to penetrate the soil for sampling. Then, the telescopic rod 8 moves the blade cylinder 22 upward, causing the connecting pipe 21 to move outside the stop rod 10. At the same time, the stop rod 10 contacts the soil sample inside the blade cylinder 22 and blocks it, causing the soil sample inside the perforated cylinder 2 to move downward and separate from the perforated cylinder 2. This ensures complete sample collection and improves the convenience of sample extraction and the accuracy of detection.

[0063] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A device for detecting the compaction degree of roadbed and pavement, characterized in that, Includes a moving vehicle (1), a stop lever (10), a lifting assembly, a drive assembly, and a limit assembly; The lifting assembly is installed on one side of the top of the mobile vehicle (1), and the bottom of the inner side of the lifting assembly is provided with an opening cylinder (2) for soil sampling of the roadbed and pavement in use. The drive assembly is installed in the middle of the lifting assembly and one end is connected to the perforated cylinder (2); The stop bar (10) is installed on the inner top of the lifting assembly and its bottom end is inserted into the middle of the perforated cylinder (2); The limiting component is installed in the middle of the lifting component and at the top of the opening cylinder (2).

2. The roadbed and pavement compaction testing device according to claim 1, characterized in that, The lifting assembly includes a bracket (7), a telescopic rod (8), and a mounting plate (12); The bracket (7) is installed on one side of the top of the mobile vehicle (1); The number of telescopic rods (8) is at least one, and the telescopic rod (8) is installed at the top of the bracket (7) and its end extends toward the mobile vehicle (1); The mounting plate (12) is installed at the end of the telescopic rod (8) and is rotatably connected to the perforated cylinder (2).

3. The roadbed and pavement compaction testing device according to claim 2, characterized in that, The bracket (7) has slide rails (6) on both sides inside, and the mounting plate (12) has grooves (5) at both ends. When the mounting plate (12) and the bracket (7) are installed together, the slide rails (6) are accommodated in the grooves (5).

4. The roadbed and pavement compaction testing device according to claim 2, characterized in that, The perforated tube (2) includes a connecting tube (21) and a knife tube (22); The connecting pipe (21) is rotatably installed in the middle of the mounting plate (12) and sleeved on the outside of the stop bar (10); The knife barrel (22) is installed at the bottom end of the connecting pipe (21).

5. The roadbed and pavement compaction testing device according to claim 2, characterized in that, The drive components include a motor (9) and a chain drive structure (11); The motor (9) is mounted on the top of the mounting plate (12); The two ends of the chain drive structure (11) are respectively installed on the outside of the connecting pipe (21) and on the output shaft of the motor (9).

6. The roadbed and pavement compaction testing device according to claim 4, characterized in that, The limiting components include a limiting plate (3) and a bullseye wheel (4); There are multiple bullseye wheels (4), and the multiple bullseye wheels (4) are respectively set at the upper and lower ends of the mounting plate (12) and located on the outside of the connecting pipe (21); There are two limiting plates (3). The two limiting plates (3) are respectively installed at both ends of the connecting pipe (21) and located above and below the mounting plate (12) and are in rolling connection with the bullseye wheel (4).

7. The roadbed and pavement compaction testing device according to claim 4, characterized in that, A notch (13) is provided on one side of the top of the mobile vehicle (1), and the cutter barrel (22) is located inside the notch (13). The size of the notch (13) is larger than the outer size of the cutter barrel (22).

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