Roadbed pavement compactness detection device

Abstract

The invention belongs to the technical field of road surveying and mapping, and particularly relates to a roadbed and pavement compactness detection device which comprises a mounting frame, a comparison test system, an equivalent filling device and a storage battery. According to the device, the equivalent filling device is arranged, standard sand and soil are subjected to constant-volume blanking through the quantitative cabin, the volume error is reduced, the comparison testing system is arranged, the weight difference between the standard sand and the soil is measured through the lever principle, and therefore the compaction degree is obtained, and during multiple times of measurement, the measurement accuracy is greatly improved. The parameters can be rapidly changed only by discharging the soil material (or the standard sand) in the comparison cabin and filling the soil material (or the standard sand) in the equivalent filling device into the comparison cabin below, the operation is simple, and the problems of tedious operation steps and large error of the existing detection device are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of road surveying and mapping, and specifically refers to a roadbed and pavement compaction detection device. Background Art

[0002] In urban planning, it is necessary to measure the compaction of roadbed and pavement when surveying and mapping geographic information to ensure project quality, optimize construction processes and support scientific decision-making.

[0003] Traditional detection methods include the ring knife method, the sand filling method, and the nuclear density meter method. Among them, the sand filling method is the main method for measuring compaction on many engineering sites. It is suitable for measuring the density of fine-grained soil, sandy soil, and gravel soil on site. When measuring, you need to weigh the mass of the calibration tank first, fill the material to be tested (standard sand and soil) into the sand filling pipe, and then put the sand filling pipe on top of the calibration tank, turn on the switch of the sand filling pipe, and let the soil in the sand filling pipe flow into the calibration tank. When the material to be tested flows into the calibration tank, turn off the switch, weigh the total mass of the calibration tank and the material to be tested, and calculate the mass of the material to be tested. After multiple tests, the mass of the standard sand and soil is calculated respectively. The mass ratio of soil to standard sand is the compaction degree. However, in actual operation, it is necessary to frequently sample the standard sand and soil, which is cumbersome and easy to cause large errors. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a roadbed and pavement compaction detection device. In order to improve the accuracy of surveying and mapping geographic information and solve the problems of complicated operating steps and large errors in the existing detection devices, an equal-volume filling device is set, and a quantitative chamber is used to discharge standard sand and soil in a fixed volume to reduce volume errors. A comparative test system is set, and the lever principle is used to measure the weight of the standard sand and the weight difference between the standard sand and the soil, so as to obtain the compaction degree. In multiple measurements, it is only necessary to discharge the soil (or standard sand) in the comparison chamber and refill the soil (or standard sand) in the equal-volume filling device into the comparison chamber below to quickly change the parameters. The operation is simple, which solves the problems of complicated operating steps and large errors in the existing detection devices.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides a roadbed and pavement compaction detection device, including a mounting frame, a comparison test system, an equal amount filling device and a battery, the mounting frame is arranged above the comparison test system, the equal amount filling device is arranged in the mounting frame, and the battery is arranged in the mounting frame.

[0006] Furthermore, the equal-amount filling device includes a feeding cabin, an upper closed cabin, a quantitative cabin and a lower closed cabin. The feeding cabin is fixedly connected to the installation frame, the upper closed cabin is arranged at the lower end of the feeding cabin, the quantitative cabin is arranged at the lower end of the upper closed cabin, and the lower closed cabin is arranged at the lower end of the quantitative cabin. The quantitative cabin is also fixedly connected to the installation frame. There are two groups of equal-amount filling devices, which use the feeding cabin to store soil and standard sand.

[0007] Furthermore, an upper sealing plate is slidably provided in the upper closed cabin, an upper push plate is connected to the outer end of the upper sealing plate, an upper magnetic column is provided on the vertical side wall of the upper closed cabin, an upper return spring is connected between the upper push plate and the upper closed cabin, and an opening is provided at the front end of the upper sealing plate (the end where the semicircle is located). Under normal circumstances, under the elastic force of the upper return spring, the filler in the feeding cabin will fall into the quantitative cabin through the opening of the upper sealing plate.

[0008] Furthermore, a lower sealing plate is slidably provided in the lower closed cabin, the outer end of the lower sealing plate is connected to a lower push plate, a lower magnetic column is provided on the vertical side wall of the lower closed cabin, and a lower return spring is connected between the lower push plate and the lower closed cabin.

[0009] Furthermore, the comparison test system includes a comparison frame, a proportional lever and a lever arm shaft, the comparison frame is fixedly connected to the lower end of the mounting frame, the lever arm shaft is rotatably arranged on the comparison frame, the proportional lever is fixedly connected to the lever arm shaft, the proportional lever rotates about the axis of the lever arm shaft, and the proportions of the two ends of the proportional lever are equal.

[0010] Furthermore, a limiting sliding groove is provided on the vertical arm of the comparison frame.

[0011] Furthermore, the comparison test system also includes a comparison cabin, which is provided with limit slide bars on both sides. The comparison cabin is slidably connected to the limit slide groove through the limit slide bar, and an auxiliary pulley is rotatably provided on the limit slide bar, and the auxiliary pulley is rollingly connected to the proportional lever.

[0012] Furthermore, a measuring slot is provided on the side wall of the comparison frame, a measuring slider is slidably connected in the measuring slot, an equidistant lever arm is connected to the end of the lever arm rotating shaft, and the measuring slider is slidably connected to the equidistant lever arm.

[0013] Furthermore, a traction ring is connected to the outer side of the measuring slider, a weighing sensor is provided on the side wall of the comparison frame, and a buffer pull rope is connected between the traction ring and the measuring end of the weighing sensor. Due to the interaction of forces, the pulling force of the traction ring on the measuring slider is equal to the force measured by the weighing sensor.

[0014] Furthermore, a magnetic sealing plate is rotatably connected to the bottom of the comparison cabin, a handle end of the magnetic sealing plate is slidably connected to the bottom of the comparison cabin, and the magnetic sealing plate is made of a permanent magnet, and closes the comparison cabin by mutual adsorption.

[0015] Furthermore, the comparison cabin is electrically connected to the upper magnetic column, the lower magnetic column and the battery.

[0016] The beneficial effects of the roadbed and pavement compaction detection device provided by this solution are as follows: (1) Set up equal-volume loading and unloading, and use the quantitative tank to discharge standard sand and soil materials in a fixed volume, so as to reduce the volume error and improve the accuracy of accurate surveying and mapping; (2) Setting up a comparative test system and using the lever principle to measure the weight of standard sand and the weight difference between standard sand and soil, thereby obtaining the degree of compaction; (3) The conical design of the upper and lower quantitative chambers can reduce dead angles during the filling process, ensuring that during the test, the two equal-volume filling devices can discharge the same volume of the test object, reducing the error caused by the volume difference; (4) The comparative test method is simple. It only requires emptying the comparative chamber where the variable is located and refilling the comparative chamber with equal-volume filling devices to change the parameters and re-measure and calculate. (5) The measurement data and calculation method are simple. The weight of the standard sand and the weight difference between the standard sand and the soil can be directly measured by the weighing sensor to obtain the compaction degree. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a roadbed and pavement compaction detection device proposed by the present invention; Figure 2 A side view of a roadbed and pavement compaction detection device proposed by the present invention; Figure 3 A front view of a roadbed and pavement compaction detection device proposed by the present invention; Figure 4 A top view of a roadbed and pavement compaction detection device proposed by the present invention; Figure 5 It is a schematic diagram of the structure of the comparative test system; Figure 6 It is a cross-sectional view of the equal volume filling device in the closed state; Figure 7 It is a cross-sectional view of the equal amount filling device in the unloading state; Figure 8 It is a schematic diagram of the structure of the comparative test system; Fig. 9 This is a cross-sectional view of the comparison cabin; Fig.10 It is a structural schematic diagram of the magnetic sealing plate.

[0018] Among them, 1. installation frame, 2. comparison test system, 3. equal amount filling device, 4. battery, 301. feeding cabin, 302. upper closed cabin, 303. quantitative cabin, 304. lower closed cabin, 305. upper sealing plate, 306. upper magnetic column, 307. upper return spring, 308. upper push plate, 309. lower magnetic column, 310. lower sealing plate, 311. lower return spring, 312. lower push plate, 501. comparison frame, 502. limit slide, 504. proportional lever, 505. auxiliary pulley, 506. limit slide, 507. comparison cabin, 508. measuring slide, 509. measuring slide, 510. equidistant force arm, 511. traction ring, 512. weighing sensor, 513. buffer pull rope, 514. force arm shaft, 515. magnetic sealing plate.

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0022] like Figure 1-Figure 10 As shown, the present invention provides a roadbed and pavement compaction detection device, including a mounting frame 1, a comparison test system 2, an equal amount filling device 3 and a battery 4, the mounting frame 1 is arranged above the comparison test system 2, the equal amount filling device 3 is arranged in the mounting frame 1, and the battery 4 is arranged in the mounting frame 1.

[0023] The equal amount filling device 3 includes a feeding cabin 301, an upper closed cabin 302, a quantitative cabin 303 and a lower closed cabin 304. The feeding cabin 301 is fixedly connected to the installation frame 1, the upper closed cabin 302 is arranged at the lower end of the feeding cabin 301, the quantitative cabin 303 is arranged at the lower end of the upper closed cabin 302, and the lower closed cabin 304 is arranged at the lower end of the quantitative cabin 303. The quantitative cabin 303 is also fixedly connected to the installation frame 1; an upper sealing plate 305 is slidably provided in the upper closed cabin 302, and the outer end of the upper sealing plate 305 is connected to an upper push plate 308, and the vertical side wall of the upper closed cabin 302 An upper magnetic column 306 is provided on the upper part, and an upper return spring 307 is connected between the upper push plate 308 and the upper closed cabin 302; a lower sealing plate 310 is slidably provided in the lower closed cabin 304, and the outer end of the lower sealing plate 310 is connected to a lower push plate 312, and a lower magnetic column 309 is provided on the vertical side wall of the lower closed cabin 304, and a lower return spring 311 is connected between the lower push plate 312 and the lower closed cabin 304; the comparison test system 2 includes a comparison frame 501, a proportional lever 504 and a force arm rotating shaft 514, the comparison frame 501 is fixedly connected to the lower end of the mounting frame 1, and the force arm rotating shaft 514 The shaft 514 is rotatably arranged on the comparison frame 501, and the proportional lever 504 is fixedly connected to the arm shaft 514; a limit slide 502 is arranged on the vertical arm of the comparison frame 501; the comparison test system 2 also includes a comparison cabin 507, and limit slide bars 506 are arranged on both sides of the comparison cabin 507. The comparison cabin 507 is slidably connected to the limit slide 502 through the limit slide bar 506, and an auxiliary pulley 505 is rotatably arranged on the limit slide bar 506, and the auxiliary pulley 505 is rollingly connected to the proportional lever 504; a measuring slide 508 is arranged on the side wall of the comparison frame 501, and the measuring slide 508 is provided. A measuring slider 509 is slidably connected in the measuring slide groove 508, an equidistant lever arm 510 is connected to the end of the lever arm rotating shaft 514, and the measuring slider 509 is slidably connected to the equidistant lever arm 510; a traction ring 511 is connected to the outer side of the measuring slider 509, a weighing sensor 512 is provided on the side wall of the comparison frame 501, and a buffer pull rope 513 is connected between the traction ring 511 and the measuring end of the weighing sensor 512; a magnetic sealing plate 515 is rotatably connected to the bottom of the comparison cabin 507, and the handle end of the magnetic sealing plate 515 is slidably connected to the bottom of the comparison cabin 507.

[0024] When in use, add the soil sample of the area to be surveyed into the equal amount filling device 3 on one side of the weighing sensor 512, and add the standard sand into the equal amount filling device 3 on the other side; start the storage battery 4, first perform quantitative unloading operation on the equal amount filling device 3 where the standard sand is located, turn on the upper magnetic suction column 306 and the lower magnetic suction column 309, and after the standard sand is added, the standard sand fills the feeding chamber 301 and the quantitative chamber 303 in turn, pushing the upper push plate 308, the upper push plate 308 slides and squeezes the upper return spring 307, the upper push plate 308 is adsorbed by the upper magnetic suction column 306, and the upper push plate 308 pushes The upper sealing plate 305 slides, and the closing cabin is closed at the same time. At this time, the standard sand filled in the quantitative cabin 303 is quantitatively measured by a fixed volume, pushing the lower push plate 312, and the lower push plate 312 slides and squeezes the lower return spring 311. The lower push plate 312 is adsorbed by the lower magnetic column 309. At the same time, the lower push plate 312 pushes the lower sealing plate 310 to slide, and the lower closed cabin 304 is opened. The standard sand in the lower closed cabin 304 falls into the comparison cabin 507 below. Then, the lower magnetic column 309 is closed first, and the lower return spring 311 is reset to push the lower sealing plate 310 and the lower push plate 312 to slide, and the lower closed cabin 304 is closed, and then the upper magnetic column 309 is closed. 06, the upper return spring 307 is reset to push the upper sealing plate 305 and the upper push plate 308 to slide, the upper closed cabin 302 is opened, and the standard sand in the feeding cabin 301 is filled into the quantitative cabin 303 again to complete the quantitative feeding operation; the standard sand in the comparison cabin 507 is weighed, and after the standard sand falls into the comparison cabin 507, since the other comparison cabin 507 is not filled, according to the lever principle (when the lever reaches balance, the power multiplied by the power arm is equal to the resistance multiplied by the resistance arm), and the force arms at both ends of the proportional lever 504 are equidistant, the gravity of the comparison cabin 507 acts on the proportional lever 504, and the gravity passes The equidistant force arm 510 acts on the measuring slide 509. Due to the interaction of forces, the pulling force of the measuring slide 509 on the weighing sensor 512 is equal to the weight of the standard sand in the comparison chamber 507. At this time, the value measured by the weighing sensor 512 is the weight of the standard sand, which is recorded as M. To measure the weight difference, the equal amount of soil filling device 3 is first quantitatively unloaded to let the soil fall into another comparison chamber 507 below. Due to the lever principle and the balanced state, at this time, the value measured by the weighing sensor 512 is the weight of the standard sand minus the weight of the soil, which is recorded as m. The formula for calculating the compaction degree is: , where: m is the difference between the weight of standard sand and the weight of soil, M is the weight of standard sand, and K is the degree of compaction; when repeating the test, it is only necessary to open the magnetic sealing plate 515 at the bottom of the comparison cabin 507 where the variable is located, empty the comparison cabin 507, re-perform quantitative unloading operation on the equal amount filling device 3 above the comparison cabin 507, and measure the new value.

[0025] The above is the specific working process of the present invention, and you can repeat this step next time you use it.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present invention.

[0028] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A roadbed and pavement compaction detection device, characterized in that: The invention comprises a mounting frame (1), a comparison test system (2), an equal amount filling device (3) and a storage battery (4), wherein the mounting frame (1) is arranged above the comparison test system (2), the equal amount filling device (3) is arranged in the mounting frame (1), and the storage battery (4) is arranged in the mounting frame (1); the comparison test system (2) comprises a comparison frame (501), a proportional lever (504) and a lever arm rotating shaft (514), the comparison frame (501) is fixedly connected to the lower end of the mounting frame (1), the lever arm rotating shaft (514) is rotatably arranged on the comparison frame (501), and the proportional lever (504) is fixedly connected to the lever arm rotating shaft (514); and a limiting sliding groove (502) is arranged on the vertical arm of the comparison frame (501).

2. A roadbed and pavement compaction detection device according to claim 1, characterized in that: The comparison test system (2) further comprises a comparison cabin (507), wherein limit sliding bars (506) are provided on both sides of the comparison cabin (507), wherein the comparison cabin (507) is slidably connected to the limit sliding groove (502) via the limit sliding bars (506), wherein an auxiliary pulley (505) is rotatably provided on the limit sliding bar (506), and wherein the auxiliary pulley (505) is rollingly connected to the proportional lever (504).

3. A roadbed and pavement compaction detection device according to claim 2, characterized in that: A measuring slide groove (508) is provided on the side wall of the comparison frame (501), a measuring slider (509) is slidably connected in the measuring slide groove (508), an equidistant lever arm (510) is connected to the end of the lever arm rotating shaft (514), and the measuring slider (509) is slidably connected to the equidistant lever arm (510).

4. A roadbed and pavement compaction detection device according to claim 3, characterized in that: The outer side of the measuring slide block (509) is connected to a traction ring (511), a weighing sensor (512) is provided on the side wall of the comparison frame (501), and a buffer pull rope (513) is connected between the traction ring (511) and the measuring end of the weighing sensor (512).

5. A roadbed and pavement compaction detection device according to claim 4, characterized in that: The bottom of the comparison cabin (507) is rotatably connected to a magnetic sealing plate (515), and the magnetic sealing plate (515) is also slidably connected to the bottom of the comparison cabin (507).

6. A roadbed and pavement compaction detection device according to claim 5, characterized in that: The equal volume filling device (3) comprises a feeding cabin (301), an upper closed cabin (302), a quantitative cabin (303) and a lower closed cabin (304); the feeding cabin (301) is fixedly connected to the installation frame (1); the upper closed cabin (302) is arranged at the lower end of the feeding cabin (301); the quantitative cabin (303) is arranged at the lower end of the upper closed cabin (302); the lower closed cabin (304) is arranged at the lower end of the quantitative cabin (303); and the quantitative cabin (303) is also fixedly connected to the installation frame (1).

7. A roadbed and pavement compaction detection device according to claim 6, characterized in that: An upper sealing plate (305) is slidably provided inside the upper closed cabin (302), an outer end of the upper sealing plate (305) is connected to an upper push plate (308), an upper magnetic column (306) is provided on the vertical side wall of the upper closed cabin (302), and an upper return spring (307) is connected between the upper push plate (308) and the upper closed cabin (302).

8. A roadbed and pavement compaction detection device according to claim 7, characterized in that: A lower sealing plate (310) is slidably disposed in the lower closed cabin (304), the outer end of the lower sealing plate (310) is connected to a lower push plate (312), a lower magnetic column (309) is disposed on the vertical side wall of the lower closed cabin (304), and a lower return spring (311) is connected between the lower push plate (312) and the lower closed cabin (304).

9. A roadbed and pavement compaction detection device according to claim 8, characterized in that: The comparison chamber (507) is electrically connected to the upper magnetic column (306), the lower magnetic column (309) and the storage battery (4).

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