Road engineering roadbed compactness detection equipment

Abstract

The utility model provides highway engineering roadbed compactness detection equipment, which relates to the technical field of compactness detection, and comprises a sampling barrel, a pressure piece is movably connected in the sampling barrel, a cleaning scraper is arranged on the circumference of the pressure piece, a sealing rubber mat is arranged on one side of the cleaning scraper, and the sealing rubber mat is arranged on the other side of the cleaning scraper. And a high-pressure air pump is arranged on one side of the sealing rubber pad. The roadbed compactness detection structure has the advantages that the movable pressure piece and the cleaning structure moving along with the pressure piece are arranged in the sampling structure of the roadbed compactness detection structure, and the air pump structure is arranged at the top end of the sampling structure to inflate and deflate the sampling structure, so that the air pressure in the sampling structure is adjusted; the pressure piece is driven to move according to the air pressure change in the sampling structure, a sample in the sampling structure can be pushed out through the pressure piece, the inner wall of the sampling structure is cleaned through the cleaning structure, the sample is prevented from being attached to the inner wall of the sampling structure, and the sample can be conveniently taken out.

Description

Technical Field

[0001] The utility model relates to the technical field of compaction degree detection, in particular to a detection device for the compaction degree of a highway engineering subgrade. Background Technique

[0002] The compaction degree of the subgrade and pavement refers to the ratio of the dry density after compaction of soil or other road construction materials to the standard maximum dry density, which is one of the indicators used to measure the construction quality of road projects. The quality of the highway subgrade is the fundamental guarantee for highway safety. Strengthening the control of the compaction degree of the highway subgrade is an important part of ensuring the subgrade quality. If the compaction degree of the subgrade does not meet the standard, it will accelerate the decline of the compaction degree of the highway subgrade under the scouring and soaking of external rainwater, and then cause a series of quality diseases of the subgrade and pavement, affecting the safety and comfort of driving and increasing the maintenance and management costs of the highway in the later stage. The control of the compaction degree during the construction process plays a very important role in the quality of the entire project. At this time, a large number of compaction degree tests are required to ensure the project quality. Special detection equipment is needed to detect the compaction degree of the subgrade.

[0003] However, the existing subgrade compaction degree detection equipment is not convenient for taking out the soil sample inside the sampling structure when taking the soil sample, which wastes the sampling time relatively, and the soil sample is easy to adhere to the inside of the sampling structure, affecting the accuracy of sampling. Content of the Utility Model

[0004] Therefore, the purpose of the utility model is to provide a detection device for the compaction degree of a highway engineering subgrade to solve the problems mentioned in the background technique and overcome the deficiencies existing in the prior art.

[0005] To achieve the above purpose, an embodiment of one aspect of the utility model provides a detection device for the compaction degree of a highway engineering subgrade, including a detection support. One end of the detection support is fixedly installed with a sand filling cylinder. One side of the sand filling cylinder is provided with a weighing plate. The middle part of the detection support is fixedly installed with a sampling cylinder. A pressure piece is movably connected inside the sampling cylinder. A cleaning scraper is arranged on the circumference of the pressure piece. One side of the cleaning scraper is provided with a sealing gasket. One side of the sealing gasket is provided with a high-pressure air pump. A soft metal movable piece is fixedly installed inside the sampling cylinder. One end of the soft metal movable piece is fixedly installed with a fastening metal wire. One end of the fastening metal wire is fixedly installed with a wire wheel group.

[0006] Preferably, one end of the detection support is provided with a support frame adapted to the sand filling cylinder. The weighing plate is fixedly installed at the top of the detection support. A fixing groove adapted to the sampling cylinder is opened in the middle part of the detection support.

[0007] Adopt the above technical solution: Use the support frame provided at one end of the detection support to support and fix the sand filling cylinder. Through the sand filling cylinder, the compactness of the sample after sampling can be detected. Through the weighing plate, the sample after sampling can be weighed to obtain the weight information of the sample, which is convenient for detecting the compactness inside the sand filling cylinder. At the same time, use the detection support to support and guide the sampling cylinder to ensure the stability of the sampling cylinder during operation.

[0008] Preferably, according to any of the above solutions, the sampling cylinder includes a rotating telescopic rod group and a sampling structure body. The rotating telescopic rod group is fixedly installed inside the detection support, and the sampling structure body is fixedly installed at the bottom of the rotating telescopic rod group.

[0009] Adopt the above technical solution: Control the rotating telescopic rod group to perform rotation and telescopic movements according to the sampling requirements, so that the rotating telescopic rod group can drive the sampling structure body to lift and rotate, which is convenient for inserting the sampling structure body deep into the subgrade for sampling.

[0010] Preferably, according to any of the above solutions, the pressure plate is movably connected inside the sampling structure body. The cleaning scraper is arranged in a ring structure and is in contact with the inner wall of the sampling structure body. The size of the sealing gasket is adapted to the size of the cleaning scraper. The cleaning scraper is located between the pressure plate and the sealing gasket, and the high-pressure air pump is fixedly installed at the top of the sampling structure body.

[0011] Adopt the above technical solution: During the process of the sampling structure body moving into the subgrade for sampling, the high-pressure air pump can be controlled to pump out the gas inside the sampling structure body, so that the pressure plate moves to the top of the sampling structure body under the action of negative pressure, ensuring that there is enough sampling space inside the sampling structure body. When the sample needs to be taken out after sampling, control the high-pressure air pump to pump gas into the sampling structure body, so that the pressure plate squeezes the sample under the action of high pressure and pushes the sample out of the sampling structure body, which is convenient for obtaining the subgrade sample. At the same time, during the movement of the pressure plate, it drives the cleaning scraper to clean the inner wall of the sampling structure body, ensuring the cleanliness of the inner wall of the sampling structure body and preventing the sample from adhering to the inner wall of the sampling structure body. The sealing gasket ensures the sealing between the pressure plate and the sampling structure body, ensuring that the pressure plate can move with the change of the air pressure inside the sampling structure body.

[0012] Preferably, according to any of the above solutions, one end of the soft metal movable piece is fixedly installed with a twisting winding shaft, and the twisting winding shaft is rotatably connected inside the sampling structure body.

[0013] Preferably, according to any of the above solutions, the twisting winding shaft includes a high-strength torsion spring and a winding shaft. The high-strength torsion spring is fixedly installed inside the sampling structure body. One end of the high-strength torsion spring is fixedly installed with a winding shaft that is rotatably connected to the sampling structure body, and the winding shaft is fixedly installed with the soft metal movable piece.

[0014] Adopt the above technical solution: A soft metal movable piece is arranged at the bottom of the sampling structure body. The flexibility of the soft metal itself can be used to stretch and wind up the soft metal movable piece, so as to facilitate adjusting the position of the soft metal movable piece according to the sampling requirements. After sampling, the control wire wheel group pulls one end of the soft metal movable piece through the fastening metal wire, so that the soft metal movable piece extends from the winding shaft. The soft metal movable piece drives the winding shaft to rotate, so that the winding shaft drives the high-strength torsion spring to twist, pulls the soft metal movable piece to the bottom of the sampling structure body, and uses the soft metal movable piece to seal the sampling structure body to ensure the safety of the sample inside the sampling structure body. When it is necessary to export the sample, the tension of the wire wheel group on the soft metal movable piece is cancelled, so that the soft metal movable piece winds up to the surface of the winding shaft under the action of the high-strength torsion spring.

[0015] Preferably, according to any of the above solutions, the wire wheel group includes a winding motor and a winding wheel. The winding motor is fixedly installed inside the sampling structure body. The output end of the winding motor is fixedly installed with a winding wheel rotatably connected to the sampling structure body. The fastening metal wire is wound on the surface of the winding wheel.

[0016] Adopt the above technical solution: Control the output power of the winding motor according to the sampling requirements, so that the winding wheel waiting for the winding motor rotates, so that the winding wheel winds up or releases the fastening metal wire, so that the fastening metal wire drives the soft metal movable piece to move, and combining with twisting the winding shaft facilitates adjusting the position of the soft metal movable piece.

[0017] Compared with the prior art, the advantages and beneficial effects of the present utility model are:

[0018] 1. An activatable pressure piece and a cleaning structure that moves along with the pressure piece are arranged inside the sampling structure of the subgrade compaction degree detection structure, and an air pump structure is arranged at the top of the sampling structure to inflate and deflate the inside of the sampling structure, adjust the air pressure inside the sampling structure, drive the pressure piece to move according to the air pressure change inside the sampling structure, use the pressure piece to push out the sample inside the sampling structure, and clean the inner wall of the sampling structure through the cleaning structure, so as to avoid the sample adhering to the inner wall of the sampling structure, facilitate taking out the sample, and ensure the accuracy of sampling.

[0019] 2. A deformable soft metal protection structure is arranged at the bottom of the sampling structure, and a wire wheel structure is arranged to adjust the position of the soft metal protection structure. Adjust the position of the soft metal protection structure according to the sampling requirements, so that the soft metal protection structure can seal the sampling structure, avoid the sample falling off after sampling, and ensure the stability of sampling.

[0020] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0021] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0022] Figure 1 is a schematic structural diagram of a first perspective according to an embodiment of the present utility model;

[0023] Figure 2 is a schematic structural diagram of a second perspective according to an embodiment of the present utility model;

[0024] Figure 3 is a schematic structural diagram of a pressure plate according to an embodiment of the present utility model;

[0025] Figure 4 is a schematic structural diagram of a soft metal movable piece according to an embodiment of the present utility model;

[0026] Figure 5 is a schematic cross-sectional structural diagram of a sampling cylinder according to an embodiment of the present utility model;

[0027] Wherein: 1 - detection bracket, 2 - sand filling cylinder, 3 - sampling cylinder, 31 - rotary telescopic rod group, 32 - sampling structure body, 4 - pressure plate, 5 - cleaning scraper, 6 - sealing gasket, 7 - high-pressure air pump, 8 - soft metal movable piece, 9 - fastening metal wire, 10 - wire wheel group, 101 - winding motor, 102 - winding wheel, 11 - twisting winding shaft, 111 - high-strength torsion spring, 112 - winding shaft. Detailed Embodiments

[0028] The following further describes the present utility model in conjunction with the drawings, but the protection scope of the present utility model is not limited to the following.

[0029] As Figures 1-5 shown, a subgrade compaction degree detection device for highway engineering according to an embodiment of the present utility model includes a detection bracket 1. One end of the detection bracket 1 is fixedly installed with a sand filling cylinder 2. A weighing plate is arranged on one side of the sand filling cylinder 2. The middle of the detection bracket 1 is fixedly installed with a sampling cylinder 3. A pressure plate 4 is movably connected inside the sampling cylinder 3. A cleaning scraper 5 is arranged on the circumference of the pressure plate 4. A sealing gasket 6 is arranged on one side of the cleaning scraper 5. A high-pressure air pump 7 is arranged on one side of the sealing gasket 6. A soft metal movable piece 8 is fixedly installed inside the sampling cylinder 3. One end of the soft metal movable piece 8 is fixedly installed with a fastening metal wire 9. One end of the fastening metal wire 9 is fixedly installed with a wire wheel group 10.

[0030] Preferably, one end of the detection support 1 is provided with a support frame adapted to the sand filling cylinder 2. The weighing plate is fixedly installed at the top of the detection support 1, and a fixing groove adapted to the sampling cylinder 3 is provided in the middle of the detection support 1.

[0031] With the above technical solution: The support frame provided at one end of the detection support 1 is used to support and fix the sand filling cylinder 2. The compactness of the sampled sample can be detected through the sand filling cylinder 2, and the sampled sample can be weighed through the weighing plate to obtain the weight information of the sample, which is convenient for detecting the compactness inside the sand filling cylinder 2. At the same time, the detection support 1 is used to support and guide the sampling cylinder 3 to ensure the stability of the sampling cylinder 3 during operation.

[0032] Preferably, the sampling cylinder 3 includes a rotary telescopic rod group 31 and a sampling structure body 32. The rotary telescopic rod group 31 is fixedly installed inside the detection support 1, and the sampling structure body 32 is fixedly installed at the bottom of the rotary telescopic rod group 31.

[0033] With the above technical solution: According to the sampling requirements, the rotary telescopic rod group 31 is controlled to perform rotational and telescopic movements, so that the rotary telescopic rod group 31 can drive the sampling structure body 32 to lift and rotate, facilitating the sampling structure body 32 to penetrate deep into the roadbed for sampling.

[0034] Preferably, the pressure plate 4 is movably connected inside the sampling structure body 32. The cleaning scraper 5 is arranged in a ring structure and is in contact with the inner wall of the sampling structure body 32. The size of the sealing gasket 6 is adapted to the size of the cleaning scraper 5. The cleaning scraper 5 is located between the pressure plate 4 and the sealing gasket 6, and the high-pressure air pump 7 is fixedly installed at the top of the sampling structure body 32.

[0035] With the above technical solution: During the process of the sampling structure body 32 moving into the roadbed for sampling, the high-pressure air pump 7 can be controlled to pump out the gas inside the sampling structure body 32, so that the pressure plate 4 moves to the top of the sampling structure body 32 under the action of negative pressure, ensuring that there is enough sampling space inside the sampling structure body 32. When the sample needs to be taken out after sampling, the high-pressure air pump 7 is controlled to pump gas into the sampling structure body 32, so that the pressure plate 4 squeezes the sample under the action of high pressure and pushes the sample out of the sampling structure body 32, facilitating the acquisition of the roadbed sample. At the same time, during the movement of the pressure plate 4, it drives the cleaning scraper 5 to clean the inner wall of the sampling structure body 32, ensuring the cleanliness of the inner wall of the sampling structure body 32 and preventing the sample from adhering to the inner wall of the sampling structure body 32. The sealing gasket 6 ensures the sealing between the pressure plate 4 and the sampling structure body 32, ensuring that the pressure plate 4 can move with the change of the air pressure inside the sampling structure body 32.

[0036] Preferably, according to any of the above solutions, one end of the soft metal movable piece 8 is fixedly installed with a twisting winding shaft 11, and the twisting winding shaft 11 is rotatably connected to the inside of the sampling structure body 32.

[0037] Preferably, according to any of the above solutions, the twisting winding shaft 11 includes a high-strength torsion spring 111 and a winding shaft 112. The high-strength torsion spring 111 is fixedly installed inside the sampling structure body 32. One end of the high-strength torsion spring 111 is fixedly installed with a winding shaft 112 that is rotatably connected to the sampling structure body 32, and the winding shaft 112 is fixedly installed with the soft metal movable piece 8.

[0038] Adopting the above technical solution: A soft metal movable piece 8 is arranged at the bottom of the sampling structure body 32. The flexibility of the soft metal itself can be used to stretch and wind the soft metal movable piece 8, which is convenient for adjusting the position of the soft metal movable piece 8 according to the sampling requirements. After sampling is completed, the control wire wheel group 10 pulls one end of the soft metal movable piece 8 through the fastening metal wire 9, so that the soft metal movable piece 8 extends from the winding shaft 112. The soft metal movable piece 8 drives the winding shaft 112 to rotate, so that the winding shaft 112 drives the high-strength torsion spring 111 to twist, pulls the soft metal movable piece 8 to the bottom of the sampling structure body 32, and uses the soft metal movable piece 8 to seal the sampling structure body 32 to ensure the safety of the sample inside the sampling structure body 32. When it is necessary to export the sample, the pulling force of the wire wheel group 10 on the soft metal movable piece 8 is cancelled, so that the soft metal movable piece 8 is wound onto the surface of the winding shaft 112 under the action of the high-strength torsion spring 111.

[0039] Preferably, according to any of the above solutions, the wire wheel group 10 includes a winding motor 101 and a winding wheel 102. The winding motor 101 is fixedly installed inside the sampling structure body 32. The output end of the winding motor 101 is fixedly installed with a winding wheel 102 that is rotatably connected to the sampling structure body 32, and the fastening metal wire 9 is wound around the surface of the winding wheel 102.

[0040] Adopting the above technical solution: Control the output power of the winding motor 101 according to the sampling requirements, so that the winding motor 101 drives the winding wheel 102 to rotate, so that the winding wheel 102 winds or releases the fastening metal wire 9, so that the fastening metal wire 9 drives the soft metal movable piece 8 to move, and it is convenient to adjust the position of the soft metal movable piece 8 in combination with the twisting winding shaft 11.

[0041] The working principle of a subgrade compaction degree detection device for highway engineering of the present utility model is as follows:

[0042] Control the rotary telescopic rod group 31 to drive the sampling structure 32 to penetrate deep into the subgrade for sampling. After sampling, control the winding motor 101 to drive the winding wheel 102 to drive the fastening wire 9 to pull the soft metal movable piece 8, so that the soft metal movable piece 8 closes the bottom of the sampling structure 32. After sampling, move the sampling structure 32 out of the subgrade, control the winding motor 101 to drive the winding wheel 102 to rotate in the reverse direction, and the soft metal movable piece 8 resets under the action of the high-strength torsion spring 111. Control the high-pressure air pump 7 to pump gas into the sampling structure 32, and use the high-pressure gas to push the pressure piece 4 to push out the sample.

[0043] Compared with the prior art, the utility model has the following beneficial effects compared with the prior art:

[0044] 1. A movable pressure piece 4 and a cleaning structure that moves with the pressure piece 4 are arranged inside the sampling structure of the subgrade compaction degree detection structure, and an air pump structure is arranged at the top of the sampling structure to inflate and deflate the inside of the sampling structure, adjust the air pressure inside the sampling structure, drive the pressure piece 4 to move according to the air pressure change inside the sampling structure, use the pressure piece 4 to push out the sample inside the sampling structure, and clean the inner wall of the sampling structure through the cleaning structure to prevent the sample from adhering to the inner wall of the sampling structure, which is convenient for taking out the sample and ensures the accuracy of sampling.

[0045] 2. A deformable soft metal protection structure is arranged at the bottom of the sampling structure, and a wire wheel structure is arranged to adjust the position of the soft metal protection structure. According to the sampling requirements, adjust the position of the soft metal protection structure so that the soft metal protection structure can close the sampling structure to prevent the sample from falling off after sampling and ensure the stability of sampling.

Claims

1. A roadbed compaction detection device for highway engineering, comprising a detection bracket (1), a sand filling cylinder (2) being fixedly mounted on one end of the detection bracket (1), a weighing plate being arranged on one side of the sand filling cylinder (2), characterized in that: A sampling tube (3) is fixedly mounted in the middle of the detection bracket (1), a pressure plate (4) is movably connected inside the sampling tube (3), a cleaning scraper (5) is arranged on the circumference of the pressure plate (4), a sealing rubber pad (6) is arranged on one side of the cleaning scraper (5), a high-pressure air pump (7) is arranged on one side of the sealing rubber pad (6), a soft metal movable sheet (8) is fixedly mounted inside the sampling tube (3), a fastening metal wire (9) is fixedly mounted on one end of the soft metal movable sheet (8), and a wire wheel assembly (10) is fixedly mounted on one end of the fastening metal wire (9).

2. A highway engineering roadbed compaction detection device as claimed in claim 1, characterized in that: A support frame adapted to fit the sand filling tube (2) is provided at one end of the detection bracket (1), the weighing plate is fixedly mounted on the top of the detection bracket (1), and a fixing groove adapted to fit the sampling tube (3) is provided in the middle of the detection bracket (1).

3. A highway engineering roadbed compaction detection device as claimed in claim 2, characterized in that: The sampling tube (3) comprises a rotating telescopic rod group (31) and a sampling structure (32); the rotating telescopic rod group (31) is fixedly mounted inside the detection bracket (1); and the sampling structure (32) is fixedly mounted at the bottom of the rotating telescopic rod group (31).

4. A highway engineering roadbed compaction detection device as claimed in claim 3, characterized in that: The pressure sheet (4) is movably connected to the interior of the sampling structure (32); the cleaning scraper (5) is arranged in an annular structure; the cleaning scraper (5) fits the inner wall of the sampling structure (32); the size of the sealing rubber pad (6) matches the size of the cleaning scraper (5); the cleaning scraper (5) is located between the pressure sheet (4) and the sealing rubber pad (6); and the high-pressure air pump (7) is fixedly mounted on the top of the sampling structure (32).

5. A highway engineering roadbed compaction detection device as claimed in claim 4, characterized in that: A twisting reel (11) is fixedly mounted on one end of the soft metal movable sheet (8), and the twisting reel (11) is rotatably connected to the interior of the sampling structure (32).

6. A highway engineering roadbed compaction detection device as claimed in claim 5, characterized in that: The twisting reel (11) comprises a high-strength torsion spring (111) and a rolling shaft (112); the high-strength torsion spring (111) is fixedly mounted inside the sampling structure (32); one end of the high-strength torsion spring (111) is fixedly mounted with the rolling shaft (112) rotatably connected to the sampling structure (32); the rolling shaft (112) is fixedly mounted to the soft metal movable sheet (8).

7. A highway engineering roadbed compaction detection device as claimed in claim 6, characterized in that: The wire reel assembly (10) comprises a winding motor (101) and a winding wheel (102); the winding motor (101) is fixedly mounted inside the sampling structure (32); the winding wheel (102) rotatably connected to the sampling structure (32) is fixedly mounted at the output end of the winding motor (101); and the fastening metal wire (9) is wound around the surface of the winding wheel (102).

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