Material taking device for detecting compactness of road
By designing a pickup device for highway compaction testing and using a combined structure of extraction components and measuring components, the problem of soil samples easily falling off in the ring-knife method has been solved, and the accuracy and reliability of sample compaction testing have been improved.
Patent Information
- Application Number
- CN202420960956.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-06
AI Technical Summary
In the prior art, the soil sample is prone to fall off during the sampling process, resulting in the sampling failure or the detection result deviates from the true value, and cannot accurately reflect the actual compaction status of the sample.
A reclaiming device for highway compaction testing is designed, including a support frame, a measuring component and an extraction component. By setting up extraction components and using structures such as lifting plates, augers, and discharge pipes, soil samples can be taken out stably. The measurement components include a ring cutter, a pedal and a lifting seat. By stepping on the pedal, the ring cutter is driven into the soil. Combined with the limit plate and scale, the sampling depth and amount are controlled.
It effectively avoids the problem of soil samples falling off during the sampling process, greatly improves the accuracy of sample compaction detection, and ensures the reliability and authenticity of sampling results.
Smart Images
Figure CN222379383U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of material taking devices, in particular to a material taking device for testing compaction of a highway. Background Art
[0002] Highway compaction testing is a crucial link in the quality management of road construction. Compaction, also known as tamping degree, refers to the ratio of the dry density of soil or other road construction materials after compaction to the standard maximum dry density, expressed as a percentage. It reflects the tightness of each compacted layer of the roadbed and is a key indicator to ensure the strength, stiffness, stability and flatness of the roadbed and pavement, thereby extending its service life.
[0003] The ring knife method is a sampling method suitable for determining the density of fine-grained soil and fine-grained soil stabilized with inorganic binders. When sampling, the cutting edge of the ring knife is placed downward on the soil sample, and the ring knife is pressed vertically until the cutting edge of the ring knife is completely inserted into the sample. Then, the excess soil sample around and on the top of the ring knife is cut off with a soil cutter, and the sample in the ring knife is taken out for weighing.
[0004] However, in the process of soil sampling and testing using the ring knife method in the existing technology, the contact between the ring knife and the soil sample may not be tight enough, resulting in the soil sample easily falling off or scattering from the ring knife when the ring knife is extracted. In addition, if the operator uses improper techniques when lifting the ring knife, such as moving too fast or vibrating too much, it is also very easy to cause the soil sample to vibrate and fall off. The falling of the soil sample may not only lead to sampling failure, but more importantly, it will have an adverse effect on the subsequent sample compaction detection work, causing the test results to deviate from the true value and fail to accurately reflect the actual compaction status of the sample. Utility Model Content
[0005] The utility model aims to provide a material taking device for detecting compaction degree of a highway, so as to solve the problems raised in the above-mentioned background technology.
[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0007] A material taking device for testing compaction degree of a highway comprises a support frame; slide grooves are symmetrically provided on the inner side of the support frame, measuring components are slidably connected between the slide grooves, the measuring components are used to isolate samples to be taken, and extraction components are also slidably connected between the slide grooves, the extraction components are used to take out the isolated samples; the extraction components comprise a lifting plate, sliders are symmetrically fixedly connected on both sides of the lifting plate, the sliders are slidably connected between the inner walls of the slide grooves, an auger is rotatably connected to the bottom of the lifting plate, the central axis of the auger extends to the top of the lifting plate and is fixedly connected to a turning handle, a connecting tube is fixedly connected to the bottom of the lifting plate, and a material discharge pipe is provided on the connecting tube.
[0008] By adopting the above technical solution, the isolated soil sample can be taken out by setting up an extraction component, specifically by connecting the hook with the handle, and then slowly controlling the lifting plate to descend until the auger contacts the sample inside the ring knife. At this time, the lifting plate is pressed down while the handle is turned to make the auger flip over to drill the sample, thereby avoiding the situation where the soil falls off during the sampling process using the ring knife in the traditional technology, and greatly improving the accuracy of the sample compaction detection.
[0009] A further improvement of the technical solution of the utility model is that: the measuring component includes a ring knife, the top of the ring knife is fixedly connected to a pedal, both sides of the pedal are fixedly connected to a lifting seat, the lifting seat is arranged as two blocks connected by screws, a cavity is opened inside the lifting seat, a rolling ball is slidably connected between the inner walls of the cavity, the rolling ball extends to the outside of the lifting seat and contacts with the slide groove, an iron sheet is fixedly connected to the top of the lifting seat, a magnet is fixedly connected between the inner walls of the slide groove, a rubber pad is arranged at the bottom of the magnet, and the magnet is used in conjunction with the iron block.
[0010] By adopting the above technical solution, the pedal is stepped on to separate the iron sheet from the magnet, and the pedal and the ring knife drop rapidly, so that the ring knife penetrates into the soil. Multiple rounds of stepping can be performed until the required depth is reached. The limit of stepping is that the bottom of the rolling ball contacts the limit plate.
[0011] A further improvement of the technical solution of the utility model is that a limiting plate is fixedly connected between the inner walls of the slide groove.
[0012] By adopting the above technical solution, the descending position of the lifting seat is limited so as to limit the maximum depth of the ring knife penetrating into the soil.
[0013] A further improvement of the technical solution of the utility model is that a handle is fixedly connected to the top of the lifting plate, a hook is suspended at the top of the inner side of the support frame, and the hook is used in conjunction with the handle.
[0014] By adopting the above technical solution, the handle is always hung on the hook during the movement of the device and before the ring knife penetrates into the soil, thereby not affecting the movement and pedaling operation.
[0015] A further improvement of the technical solution of the utility model is that a plurality of universal wheels are fixedly mounted on the bottom of the support frame, and a push handle is arranged on one side of the support frame.
[0016] By adopting the above technical solution, the bottom of the universal wheel contacts the ground during the movement of the device, thereby facilitating the device to be pushed to the sampling position by the push handle.
[0017] A further improvement of the technical solution of the utility model is that: the bottom of the support frame is threadedly connected with a screw rod, the bottom of the screw rod is rotatably connected with a base, and the top of the screw rod extends to the inner side of the support frame and is fixedly connected with a rotary handle.
[0018] By adopting the above technical solution, after moving to the sampling position, the screw is lowered by rotating the handle, and the base is driven down to contact the ground to provide support to avoid damage to the universal wheel due to stepping during sampling.
[0019] A further improvement of the technical solution of the utility model is that a scale is arranged on the inner side of the support frame near the bottom.
[0020] The above technical solution makes it easy to intuitively judge the depth of the ring cutter penetrating into the soil. Correspondingly, the sample volume can be calculated based on the bottom area of the ring cutter.
[0021] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:
[0022] 1. The utility model provides a material taking device for highway compaction detection. By setting an extraction component, the isolated soil sample can be taken out. Specifically, the hook is connected with the handle, and the lifting plate is slowly controlled to descend until the auger contacts the sample inside the ring knife. At this time, the lifting plate is pressed down while the handle is turned to turn the auger over to drill the sample. After the connecting tube contacts the top of the lifting seat, the sample begins to be lifted to the connecting tube. With the continuous rotation of the auger, the raw material is lifted to the connecting tube and sent out from the discharge pipe, and the soil sample can be taken out. This avoids the situation where the soil falls off during the sampling process using the ring knife in the traditional technology, and greatly improves the accuracy of the sample compaction detection.
[0023] 2. The utility model provides a material taking device for detecting compaction degree of highway. By setting a measuring component and cooperating with setting a scale, a pedal is stepped on with the foot when sampling, so that the iron sheet is separated from the magnet, the pedal and the ring knife drop quickly, and the ring knife penetrates into the soil. Multiple rounds of stepping can be performed until the required depth is reached. A scale is set at the bottom of the inner side of the support frame to facilitate intuitive judgment of the depth of the ring knife penetrating into the soil. The limit reached by stepping on is that the bottom of the rolling ball contacts the limit plate, so that the sampling amount can be flexibly controlled, and at the same time, it is avoided that the scale is directly set on the outside of the ring knife, which is easy to wear.
[0024] 3. The utility model provides a material taking device for testing compaction degree of highways. By setting two supporting modes corresponding to different working states, during the movement of the device, the bottom of the universal wheel 17 is controlled to contact the ground, so that the device can be pushed to the sampling position by the push handle 16, and the sampling position can be flexibly adjusted; after moving to the sampling position, the screw rod 18 is lowered by rotating the handle, and the base 19 is driven to lower to contact the ground to provide support, so as to avoid damage to the universal wheel 17 by trampling during sampling, thereby greatly improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The utility model will be further described below in conjunction with the accompanying drawings.
[0026] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;
[0027] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle;
[0028] Figure 3 This is a schematic diagram of the structure of the support frame of the utility model;
[0029] Figure 4 It is a structural schematic diagram of the extraction component of the utility model;
[0030] Figure 5 It is a partial structural schematic diagram of the measuring component of the utility model;
[0031] In the figure: 1. support frame; 2. ring knife; 3. pedal; 4. slide groove; 5. lifting seat; 6. rolling ball; 7. iron sheet; 8. lifting plate; 9. connecting tube; 10. auger; 11. discharge pipe; 12. slide block; 13. handle; 14. turning handle; 15. hook; 16. push handle; 17. universal wheel; 18. screw; 19. base; 20. magnet; 21. limit plate. DETAILED DESCRIPTION
[0032] The present invention is further described in detail below in conjunction with the embodiments:
[0033] Example 1
[0034] like Figure 1-Figure 5 As shown, the utility model provides a material taking device for detecting compaction degree of a highway, comprising a support frame 1; chute 4 is symmetrically provided on the inner side of the support frame 1, and a measuring component is slidably connected between the chute 4, and the measuring component is used to isolate the sample to be taken, and an extraction component is also slidably connected between the chute 4, and the extraction component is used to take out the isolated sample; the extraction component comprises a lifting plate 8, and sliders 12 are symmetrically fixedly connected on both sides of the lifting plate 8, and the sliders 12 are slidably connected between the inner walls of the chute 4, and the bottom of the lifting plate 8 is rotatably connected to an auger 10, and the central axis of the auger 10 extends to the top of the lifting plate 8 and is fixedly connected to a turning handle 14, and the bottom of the lifting plate 8 is fixedly connected to a connecting tube 9, and a discharge pipe 11 is provided on the connecting tube 9.
[0035] In this embodiment, by setting up an extraction component, the isolated soil sample can be taken out, specifically, by connecting the hook with the handle 13, and then slowly controlling the lifting plate 8 to descend until the auger 10 contacts the sample inside the ring knife 2. At this time, while pressing down the lifting plate 8, the handle 14 is turned to make the auger 10 flip over to drill the sample. After the connecting tube 9 contacts the top of the lifting seat 5, the sample begins to be lifted to the connecting tube 9. With the continuous rotation of the auger 10, the raw material will be lifted to the connecting tube 9 and sent out from the discharge pipe 11, and the soil sample can be taken out, thereby avoiding the situation where the soil falls off during the sampling process using the ring knife in the traditional technology, and greatly improving the accuracy of the sample compaction detection.
[0036] like Figure 1 and Figure 5 As shown, preferably, the measuring component includes a ring knife 2, the top of the ring knife 2 is fixedly connected with a pedal 3, both sides of the pedal 3 are fixedly connected with a lifting seat 5, the lifting seat 5 is configured as two blocks connected by screws, a cavity is opened inside the lifting seat 5, a ball 6 is slidably connected between the inner walls of the cavity, the ball 6 extends to the outside of the lifting seat 5 and contacts with the slide groove 4, an iron sheet 7 is fixedly connected to the top of the lifting seat 5, a magnet 20 is fixedly connected between the inner walls of the slide groove 4, a rubber pad is arranged at the bottom of the magnet 20, and the magnet 20 is used in conjunction with the iron block.
[0037] In this embodiment, the pedal 3 is stepped on by foot to separate the iron sheet 7 from the magnet 20, and the pedal 3 and the ring knife 2 drop rapidly, so that the ring knife 2 penetrates into the soil. Multiple rounds of stepping can be performed until the required depth is reached. The limit of stepping is that the bottom of the ball 6 contacts the limit plate 21.
[0038] like Figure 3 As shown, preferably, a limiting plate 21 is fixedly connected between the inner walls of the slide groove 4.
[0039] In this embodiment, the descending position of the lifting seat 5 is limited so as to limit the maximum depth of the ring knife 2 penetrating into the soil.
[0040] like Figure 1 and Figure 3 As shown, preferably, a handle 13 is fixedly connected to the top of the lifting plate 8, and a hook 15 is suspended from the top of the inner side of the support frame 1, and the hook 15 is used in conjunction with the handle 13.
[0041] In this embodiment, during the movement of the device and before the ring knife 2 penetrates into the soil, the handle 13 is always hung on the hook, thereby not affecting the movement and pedaling operation.
[0042] like Figure 1 and Figure 2 As shown, preferably, a plurality of universal wheels 17 are fixedly mounted on the bottom of the support frame 1 , and a push handle 16 is provided on one side of the support frame 1 .
[0043] In this embodiment, the bottom of the universal wheel 17 contacts the ground during the movement of the device, thereby facilitating the device to be pushed to the sampling position by the push handle 16 .
[0044] Example 2
[0045] like Figure 1 and Figure 2 As shown, based on Example 1, the utility model provides a technical solution: preferably, the bottom of the support frame 1 is threadedly connected with a screw 18, the bottom of the screw 18 is rotatably connected to a base 19, and the top of the screw 18 extends to the inner side of the support frame 1 and is fixedly connected with a handle.
[0046] In this embodiment, after moving to the sampling position, the screw 18 is lowered by rotating the handle, and the base 19 is driven to lower to contact the ground to provide support to avoid damage to the universal wheel 17 by stepping on it during sampling.
[0047] Example 3
[0048] On the basis of Example 2, the utility model provides a technical solution: preferably, a scale is provided on the inner side of the support frame 1 near the bottom.
[0049] In this embodiment, it is convenient to intuitively judge the depth of the ring knife 2 inserted into the soil. Correspondingly, the sampled volume can be calculated according to the bottom area of the ring knife 2.
[0050] The working principle of the material taking device for testing compaction degree of the highway will be described in detail below.
[0051] like Figure 1-Figure 5 As shown, during the movement of the device, the bottom of the universal wheel 17 contacts the ground, so that the device can be pushed to the sampling position by the push handle 16. During the movement of the device, the handle 13 is always hung on the hook, and impurities on the sampling position are cleaned in advance to ensure that the position is level;
[0052] After moving to the sampling position, the screw 18 is lowered by rotating the handle, and the base 19 is driven to lower to the ground to provide support. The pedal 3 can be stepped on to separate the iron sheet 7 from the magnet 20, and the pedal 3 and the ring knife 2 are quickly lowered, so that the ring knife 2 is inserted into the soil. Multiple rounds of stepping can be performed until the required depth is reached. The limit of stepping is that the bottom of the ball 6 contacts the limit plate 21. After completing the above-mentioned soil isolation operation, the material can be taken. Specifically, the hook can be connected to the handle 13, and then the lifting plate can be slowly controlled. 8 descends until the auger 10 contacts the sample inside the ring knife 2. At this time, the lifting plate 8 is pressed down while the handle 14 is turned to flip the auger 10 to drill the sample. After the connecting tube 9 contacts the top of the lifting seat 5, the sample begins to be lifted to the connecting tube 9. Previously, the sample was in the area between the lifting seat 5 and the ring knife 2. With the continuous rotation of the auger 10, the raw material will be lifted to the connecting tube 9 and sent out from the discharge pipe 11. A receiving tube is placed at the bottom of the discharge pipe 11 so that the sample is sent into the receiving tube. The sampling is completed after the sample is completely sent out.
[0053] After the sampling is completed, lift the lifting plate 8 upwards, hang the handle 13 on the hook 15 again, and lift the pedal 3 upwards, so that the iron sheet 7 and the magnet 20 contact and attract each other. At this time, the pedal 3 is in a fixed state, and then turn the handle to make the screw 18 rotate and rise until the base 19 leaves the ground. The universal wheel 17 can be used to support the ground to facilitate the mobile device.
[0054] After all samples are taken out, they are weighed. If the sampling volume and sample weight are known, their density can be obtained, which can be used as an important parameter indicator of compaction.
[0055] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A material taking device for testing the compaction degree of a highway, comprising a support frame (1); characterized in that: The inner side of the support frame (1) is symmetrically provided with slide grooves (4), and a measuring component is slidably connected between the slide grooves (4), and the measuring component is used to isolate the sample to be taken. The slide grooves (4) are also slidably connected with an extraction component, and the extraction component is used to take out the isolated sample; The extraction component comprises a lifting plate (8), and sliders (12) are symmetrically fixedly connected to both sides of the lifting plate (8), and the sliders (12) are slidably connected between the inner walls of the slide groove (4). The bottom of the lifting plate (8) is rotatably connected to a screw dragon (10), and the central axis of the screw dragon (10) extends to the top of the lifting plate (8) and is fixedly connected to a handle (14). The bottom of the lifting plate (8) is fixedly connected to a connecting tube (9), and the connecting tube (9) is provided with a discharge pipe (11).
2. A material taking device for testing compaction of a highway according to claim 1, characterized in that: The measuring component comprises a ring knife (2), the top of the ring knife (2) is fixedly connected to a pedal (3), both sides of the pedal (3) are fixedly connected to a lifting seat (5), the lifting seat (5) is arranged as two blocks connected by screws, a cavity is provided inside the lifting seat (5), a rolling ball (6) is slidably connected between the inner walls of the cavity, the rolling ball (6) extends to the outside of the lifting seat (5) and contacts with the slide groove (4), an iron sheet (7) is fixedly connected to the top of the lifting seat (5), a magnet (20) is fixedly connected between the inner walls of the slide groove (4), a rubber pad is arranged at the bottom of the magnet (20), and the magnet (20) is used in conjunction with the iron block.
3. A material taking device for testing compaction of a highway according to claim 2, characterized in that: A limiting plate (21) is fixedly connected between the inner walls of the slide groove (4).
4. A material taking device for testing compaction of a highway according to claim 3, characterized in that: A handle (13) is fixedly connected to the top of the lifting plate (8), and a hook (15) is suspended at the top of the inner side of the support frame (1), and the hook (15) is used in conjunction with the handle (13).
5. A material taking device for testing compaction of a highway according to claim 4, characterized in that: A plurality of universal wheels (17) are fixedly mounted on the bottom of the support frame (1), and a push handle (16) is provided on one side of the support frame (1).
6. A material taking device for testing compaction of a highway according to claim 5, characterized in that: The bottom of the support frame (1) is threadedly connected to a screw rod (18), the bottom of the screw rod (18) is rotatably connected to a base (19), and the top of the screw rod (18) extends to the inner side of the support frame (1) and is fixedly connected to a rotary handle.
7. A material taking device for testing compaction of a highway according to claim 6, characterized in that: A scale is provided on the inner side of the support frame (1) near the bottom.