Device for detecting compactness of roadbed layer of highway engineering

Abstract

The utility model relates to the technical field of compaction degree detection devices, and discloses a highway engineering subgrade layer compaction degree detection device which comprises a supporting bottom plate, a top mounting box is arranged at the top end of the supporting bottom plate, wheels are uniformly arranged on the periphery of the bottom end of the supporting bottom plate, a push handle is arranged on the side edge of the supporting bottom plate, and the push handle is arranged on the top end of the supporting bottom plate. The top mounting box is provided with a balancing weight, the top mounting box is provided with a compaction degree detection accurate sampling assembly used for stable sampling, and the compaction degree detection accurate sampling assembly is arranged on the top mounting box, so that the problem of soil splashing caused by drilling by using a blade can be effectively avoided; according to the subgrade compaction degree detection device, the discharged soil can be relatively completely collected by a user, and the sampled soil and the standard sand are equivalently replaced, so that the subgrade compaction degree data can be obtained by detecting the standard sand, the subgrade compaction degree can be more accurately detected, and the detection requirements of the user are met.

Description

Technical Field

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

[0002] During the paving process of highway, it is necessary to conduct sampling inspection on the road base. The usual inspection standard is to take 3 points for inspection in each compacted layer for every 1000 square meters. The inspection method adopts sand filling method, water filling method or ring knife method. The existing sand filling method is the main inspection method. The basic principle of the sand filling method is to use clean and dry sand with a particle size of 0.30mm~0.60mm and a known loose density to fall freely from the sand filling cylinder into the test hole, that is, to replace the sample in the test hole with standard sand, so as to measure the volume of the test hole, and calculate the dry density of the sample according to the moisture content of the sample.

[0003] After searching, the authorized Chinese patent announcement number CN 216275146 U discloses a roadbed compaction field detection device for highway engineering, which relates to the technical field of road compaction detection. The utility model includes a mounting plate, and a fixing rod is fixedly connected to the lower surface of the mounting plate. The utility model sets a first motor and a second motor. The rotation of the second motor can drive the screw to rotate. The setting of the screw and the lifting plate threaded connection can make the lifting plate rise and fall, and finally drive the blade to rise and fall, and the depth of the drilling can be adjusted. The rotation of the first motor can drive the blade to rotate to perform the drilling operation. It has a simple structure and is easy to use. It can effectively shorten the single pit detection time, and the size is more standardized and the data is more accurate.

[0004] The compaction detection device in the above patent still has certain shortcomings. In the above patent, a motor is used to drive a blade to drill holes in the ground to extract soil for the roadbed. During the rotation of the blade, it is easy to cause soil splashing, resulting in a large error in the sample taken out. At this time, standard sand is used to replace the sample in the test hole. The obtained soil compaction detection data is inaccurate and difficult to meet the user's detection requirements. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a device for detecting the compaction of a roadbed in a highway engineering project, which solves the problem that soil is obtained by drilling holes in the ground to obtain soil using a motor to drive a blade, and the blade is prone to soil splashing during rotation, resulting in a large error in the sample taken out. At this time, standard sand is used to replace the sample in the test hole, and the obtained soil compaction test data is inaccurate, making it difficult to meet the user's detection requirements.

[0006] The utility model provides the following technical solutions: a roadbed compaction detection device for highway engineering, comprising a supporting base plate, a top mounting box is arranged at the top of the supporting base plate, wheels are evenly arranged around the bottom of the supporting base plate, a push handle is arranged on the side of the supporting base plate, a counterweight is arranged on the top mounting box, and a compaction detection precision sampling component for stable sampling is arranged on the top mounting box;

[0007] The compaction degree detection precision sampling component includes a side driving groove opened on the side of the top mounting box, a driving screw is rotatably arranged in the side driving groove, a top driving motor is arranged in the top mounting box, a driving shaft of the top driving motor is connected with the driving screw, a lifting screw sleeve is sleeved on the driving screw, a limiting sliding groove is opened on the inner wall of the side driving groove, a limiting sliding block is opened on the side of the lifting screw sleeve, the limiting sliding block is slidably inserted in the limiting sliding groove, a side supporting block is arranged on the side of the lifting screw sleeve, a sampling motor is arranged on the top of the side supporting block, the driving shaft of the sampling motor rotates and passes through the side supporting block, a rotating connecting seat is arranged below the side supporting block, the driving shaft of the sampling motor is connected with the rotating connecting seat, an installation slot is opened at the bottom end of the rotating connecting seat, a sampling drill barrel is inserted in the installation slot, and a drilling tooth block is arranged around the bottom end of the sampling drill barrel.

[0008] Preferred technical solution 1: Two inner wall grooves are symmetrically opened on both sides of the inner wall of the installation slot, a fixed connecting plate is arranged in the inner wall groove, a side of the fixed connecting plate is rotatably provided with a resistance screw, and the resistance screw thread passes through the rotating connecting seat and extends to the outside.

[0009] Preferred technical solution 2: A drill rod slot is provided at the top of the top installation box, and a spiral sampling drill rod is inserted into the drill rod slot.

[0010] Preferred technical solution three: the end of the sampling drill barrel is the same as the end of the spiral sampling drill rod, and both the sampling drill barrel and the spiral sampling drill rod can be inserted into the installation slot.

[0011] This solution can make it more convenient to clamp the sampling drill barrel and the spiral sampling drill rod in the installation slot.

[0012] Preferred technical solution four: The side surface of the fixed connecting plate is provided with anti-slip grooves for increasing friction.

[0013] This solution enables the user to rotate the interference screw to push the fixed connecting plate to interfere with the sampling drill tube more stably.

[0014] Preferred technical solution five: The end of the interference screw is provided with a connecting block for easy rotation.

[0015] This solution can make it more convenient for users to rotate the interference screw.

[0016] Compared with the prior art, the utility model provides a roadbed compaction detection device for highway engineering, which has the following beneficial effects:

[0017] (1) The utility model is provided with a compaction detection precision sampling assembly on the top mounting box, wherein the sampling drill tube and the drilling tooth block in the compaction detection precision sampling assembly can be driven by the sampling motor to perform the initial drilling of the highway road base layer, and the soil will not be splashed during the drilling process. Then, by replacing the spiral sampling drill rod, the soil in the initial drilling process can be slowly discharged under the drive of the sampling motor, thereby effectively avoiding the problem of soil splashing caused by the use of blade drilling, so that the user can collect the discharged soil more completely, and then the sampled soil is replaced with the standard sand in equal amounts, so that the data of the road base compaction can be obtained by detecting the standard sand, and the compaction of the road base layer can be detected more accurately to meet the detection requirements of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the main cross-section of the structure of the utility model;

[0020] Figure 3 For the utility model Figure 2 An enlarged view of the structure of the middle rotating connecting seat;

[0021] Figure 4 For the utility model Figure 2 An enlarged view of the structure of the drilling tooth block.

[0022] In the figure:

[0023] 1. Support base plate; 2. Top mounting box; 3. Wheels; 4. Push handle; 5. Counterweight; 6. Compactness detection precision sampling assembly;

[0024] 601, side drive groove; 602, drive screw; 603, top drive motor; 604, lifting screw sleeve; 605, limit slide groove; 606, limit slider; 607, side support block; 608, sampling motor; 609, rotating connection seat; 610, installation slot; 611, sampling drill barrel; 612, drilling tooth block; 613, inner wall groove; 614, fixed connection plate; 615, resistance screw; 616, drill rod slot; 617, spiral sampling drill rod. DETAILED DESCRIPTION

[0025] See also Figure 1-4

[0026] Embodiment 1: A device for detecting the compaction degree of a road base layer of a highway engineering project comprises a supporting base plate 1, a top mounting box 2 is arranged at the top of the supporting base plate 1, wheels 3 are evenly arranged around the bottom end of the supporting base plate 1, a push handle 4 is arranged on the side of the supporting base plate 1, a counterweight block 5 is arranged on the top mounting box 2, and a compaction detection precision sampling component 6 for stable sampling is arranged on the top mounting box 2.

[0027] The compaction detection precision sampling component 6 includes a side drive groove 601 opened on the side of the top installation box 2, a drive screw 602 is rotatably arranged in the side drive groove 601, a top drive motor 603 is arranged in the top installation box 2, the drive shaft of the top drive motor 603 is connected to the drive screw 602, a lifting screw sleeve 604 is sleeved on the drive screw 602, a limiting slide groove 605 is opened on the inner wall of the side drive groove 601, a limiting slider 606 is set on the side of the lifting screw sleeve 604, and the limiting slider 606 is slidably inserted in the limiting slide groove 605.

[0028] A side support block 607 is provided on the side of the lifting screw sleeve 604, and a sampling motor 608 is provided on the top of the side support block 607. The driving shaft of the sampling motor 608 rotates and passes through the side support block 607. A rotating connecting seat 609 is provided below the side support block 607. The driving shaft of the sampling motor 608 is connected to the rotating connecting seat 609. A mounting slot 610 is provided at the bottom end of the rotating connecting seat 609. A sampling drill barrel 611 is inserted in the mounting slot 610. A drilling tooth block 612 is provided around the bottom end of the sampling drill barrel 611. Two inner wall grooves 613 are symmetrically provided on both sides of the inner wall of the mounting slot 610.

[0029] A fixed connecting plate 614 is arranged in the inner wall groove 613, and a resistance screw 615 is rotatably arranged on the side of the fixed connecting plate 614. The resistance screw 615 threadably penetrates the rotating connecting seat 609 and extends to the outside. A drill rod slot 616 is opened at the top of the top mounting box 2, and a spiral sampling drill rod 617 is inserted in the drill rod slot 616.

[0030] Embodiment 2: The difference between this embodiment and embodiment 1 is that the end of the sampling drill barrel 611 is the same as the end of the spiral sampling drill rod 617 , and both the sampling drill barrel 611 and the spiral sampling drill rod 617 can be inserted into the installation slot 610 .

[0031] This makes it more convenient to clamp the sampling drill tube 611 and the spiral sampling drill rod 617 in the installation slot 610 .

[0032] Embodiment 3: The difference between this embodiment and embodiment 1 is that the side surface of the fixed connecting plate 614 is provided with anti-slip grooves for increasing friction.

[0033] This allows the user to rotate the interference screw 615 to push the fixed connecting plate 614 to interfere with the sampling drill tube 611 more stably.

[0034] Embodiment 4: The difference between this embodiment and embodiment 1 is that a connecting block for facilitating rotation is provided at the end of the abutting screw rod 615 .

[0035] This makes it more convenient for the user to rotate the interference screw 615.

[0036] In this embodiment, since the existing roadbed is drilled to extract soil by using a motor to drive a blade to drill holes in the ground, and the blade is easily splashed with soil during rotation, resulting in a large error in the sample taken out. At this time, if standard sand is used to replace the sample in the test hole, the obtained soil compaction test data will be inaccurate and difficult to meet the user's testing requirements.

[0037] In summary, in specific implementation, when the user needs to test the compaction of the highway road base, the user first needs to sample the highway road base, and then test the compaction of the road base by replacing the sampled soil with standard sand.

[0038] The user first moves the device to the roadbed, and starts the sampling motor 608 and the top drive motor 603, so that the sampling motor 608 drives the rotating connecting seat 609 to rotate. A mounting slot 610 is provided at the bottom of the rotating connecting seat 609, and a sampling drill barrel 611 is inserted in the mounting slot 610. By rotating the abutting screw 615, the fixed connecting plate 614 is pushed to abut and fix the end of the sampling drill barrel 611, so that the sampling drill barrel 611 can rotate stably under the drive of the sampling motor 608, and a drilling tooth block 612 is provided at the bottom of the sampling drill barrel 611. The drilling tooth block 612 can enable the sampling drill barrel 611 to quickly drill the roadbed, and the top drive motor 603 drives the lifting screw sleeve 604 downward by driving the driving screw 602, so that the rotating sampling drill barrel 611 can drill into the roadbed.

[0039] The sampling drill barrel 611 is removed from the rotating connecting seat 609, and the spiral sampling drill rod 617 is installed in the installation slot 610 again. By starting the sampling motor 608 and the top drive motor 603 again, the spiral sampling drill rod 617 can discharge the soil first drilled by the sampling drill barrel 611 during the rotation, and the soil discharge process is relatively slow, which can effectively avoid the problem of soil splashing caused by using blade drilling, so that the user can collect the discharged soil more completely, and then the sampled soil is replaced with the standard sand in equal amounts, so as to obtain the data of the compaction degree of the road base layer through the detection of the standard sand, and the compaction degree of the road base layer can be detected more accurately to meet the user's detection requirements.

Claims

1. A roadbed compaction detection device for a highway engineering project, comprising a supporting base plate (1), characterized in that: A top mounting box (2) is arranged at the top of the supporting base plate (1), wheels (3) are evenly arranged around the bottom of the supporting base plate (1), a push handle (4) is arranged on the side of the supporting base plate (1), a counterweight (5) is arranged on the top mounting box (2), and a compaction detection precision sampling component (6) for stable sampling is arranged on the top mounting box (2); The compaction detection precision sampling component (6) comprises a side drive groove (601) provided on the side of the top installation box (2), a driving screw (602) is rotatably arranged in the side drive groove (601), a top drive motor (603) is arranged in the top installation box (2), a driving shaft of the top drive motor (603) is connected to the driving screw (602), a lifting screw sleeve (604) is sleeved on the driving screw (602), a limiting slide groove (605) is provided on the inner wall of the side drive groove (601), a limiting slider (606) is provided on the side of the lifting screw sleeve (604), and the limiting slider (606) is slidably inserted in the limiting slide groove ( 605), a side support block (607) is arranged on the side of the lifting screw sleeve (604), a sampling motor (608) is arranged on the top of the side support block (607), a driving shaft of the sampling motor (608) rotates and passes through the side support block (607), a rotating connecting seat (609) is arranged below the side support block (607), the driving shaft of the sampling motor (608) is connected to the rotating connecting seat (609), a mounting slot (610) is opened at the bottom end of the rotating connecting seat (609), a sampling drill barrel (611) is inserted in the mounting slot (610), and a drilling tooth block (612) is arranged around the bottom end of the sampling drill barrel (611).

2. A road engineering roadbed compaction detection device according to claim 1, characterized in that: Two inner wall grooves (613) are symmetrically provided on both sides of the inner wall of the installation slot (610), a fixed connection plate (614) is provided in the inner wall groove (613), and a resistance screw (615) is rotatably provided on the side of the fixed connection plate (614), and the resistance screw (615) threadably penetrates the rotating connection seat (609) and extends to the outside.

3. A road engineering roadbed compaction detection device according to claim 2, characterized in that: A drill rod slot (616) is provided at the top of the top installation box (2), and a spiral sampling drill rod (617) is inserted into the drill rod slot (616).

4. A road engineering roadbed compaction detection device according to claim 3, characterized in that: The end of the sampling drill barrel (611) is the same as the end of the spiral sampling drill rod (617), and both the sampling drill barrel (611) and the spiral sampling drill rod (617) can be inserted into the installation slot (610).

5. A road engineering roadbed compaction detection device according to claim 4, characterized in that: The side surface of the fixed connection plate (614) is provided with anti-slip grooves for increasing friction.

6. A roadbed compaction detection device for highway engineering according to claim 5, characterized in that: The end of the abutting screw rod (615) is provided with a connecting block for easy rotation.

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