Sampling device for municipal road subgrade compaction degree detection

Abstract

The invention discloses a sampling device for municipal road subgrade compactness detection, and relates to the technical field of sampling devices. Comprising a rotating table and further comprises a transferring part, the top of the transferring part is fixedly connected with the bottom of the rotating table, the inner wall of the rotating table is rotationally connected with an integrated part through a connecting frame, the integrated part comprises a transmission assembly, and the bottom of the transmission assembly is fixedly connected with a quick connecting assembly; a drilling tool assembly is fixedly connected to the bottom of the quick connecting assembly, and a vibration assembly is fixedly connected to the outer wall of the drilling tool assembly. According to the sampling device, the vibration assembly is arranged, the vibration principle and the elastic mechanics principle are applied, in the sampling process, mechanical vibration generated by a vibration disc is transmitted to a main cutter through ball impact and the action of a second jacking spring, and the resistance of a roadbed soil body to the drilling tool assembly is effectively reduced; the sampling device achieves the purpose of the sampling device for detecting the compaction degree of the municipal road subgrade.

Description

Technical Field

[0001] The present invention relates to the technical field of sampling devices, and specifically to a sampling device for detecting the compactness of a municipal road subgrade. Background Art

[0002] In the construction project of municipal roads, the compactness of the subgrade is one of the key indicators to measure the road quality. Accurately detecting the subgrade compactness is crucial for ensuring the stability, durability, and overall performance of the road. And sampling, as the primary link of compactness detection, its accuracy and efficiency directly affect the reliability of subsequent detection results.

[0003] Currently, in terms of sampling operations, the traditional drill bit structure is usually designed relatively simply. The process of taking out the sample is complex and prone to damaging the sample. For example, after some traditional drill bits complete sampling, it is difficult to take out the sample completely from the drill bit, and often additional tools need to be used for assistance. This is not only cumbersome in operation but also may damage the original structure of the sample, affecting the accuracy of the detection results and resulting in low sampling efficiency. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a sampling device for detecting the compactness of a municipal road subgrade, which solves

[0006] the problems.

[0007] (II) Technical Solutions

[0008] To achieve the above objectives, the present invention is realized through the following technical solutions: A sampling device for detecting the compactness of a municipal road subgrade includes a rotating table, and also includes a transfer component. The top of the transfer component is fixedly connected to the bottom of the rotating table. The inner wall of the rotating table is rotatably connected to an integrated component through a connecting frame, and the outer wall of the connecting frame is fixedly connected to the inner wall of the rotating table; the integrated component includes a transmission component. The outer wall of the transmission component is rotatably connected to the outer wall of the connecting frame through a hinge. The bottom of the transmission component is fixedly connected to a quick-connection component. The bottom of the quick-connection component is fixedly connected to a drill bit component. The outer wall of the drill bit component is fixedly connected to a vibration component. The transmission component in the integrated component can drive the drill bit component to rotate and feed, thereby realizing drilling and sampling of the subgrade, and the vibration component can generate vibration during the sampling process to improve the sampling efficiency and quality; the drill bit component includes a main cutting tool. A secondary cutting tool is slidably connected to the wall of the main cutting tool through a chute, and the chute is opened in the wall of the main cutting tool. The top of the secondary cutting tool is fixedly connected to a pressure plate. The outer wall of the pressure plate is fixedly connected to a pressure ring. The outer wall of the main cutting tool is fixedly connected to a baffle.

[0009] Preferably, the transfer component includes a moving platform, a counterweight block is inserted into the inner wall of the moving platform, and the counterweight blocks are linearly arranged along the outer wall of the moving platform. A fixed shell is rotatably connected to the top of the moving platform. A plug post is slidably connected to the outer wall of the fixed shell through a fixing ring, and the outer wall of the fixing ring is fixedly connected to the outer wall of the fixed shell. A first top spring is fixedly connected to the outer wall of the plug post.

[0010] Preferably, one end of the first top spring away from the plug post is fixedly connected to the top of the fixing ring. The bottom of the plug post is inserted into the top of the moving platform through a jack, and the jack is opened on the top of the moving platform. Clamping blocks are fixedly connected to the outer walls on both sides of the moving platform, and the outer walls of the clamping blocks are clamped with the outer walls of the counterweight blocks. The material of the clamping blocks is an elastic material.

[0011] Preferably, the transmission component includes a flipping shell. Limiting buckles are fixedly connected to the outer walls on both sides of the flipping shell and cooperate with the limiting plates on the connecting frame, so that the flipping shell is restricted from moving relative to the connecting frame by clamping the limiting buckles on the limiting plates. A threaded shell is threadedly connected to the inner wall of the flipping shell. A fixing frame is rotatably connected to the inner wall of the threaded shell. A column is fixedly connected to the top of the fixing frame. A stepping motor is fixedly connected to the top of the fixing frame. A compression spring is fixedly connected to the outer wall of the top of the fixing frame. The top of the fixing frame is fixedly connected to a gear rack through a connecting plate, and the bottom of the connecting plate is fixedly connected to the top of the fixing frame. A driven wheel is rotatably connected to the inner wall of the gear rack. The output end of the stepping motor is fixedly connected to a driving wheel.

[0012] Preferably, the outer wall of the driving wheel meshes with the outer wall of the driven wheel. Internal teeth are fixedly connected to the inner wall of the threaded shell, and the internal teeth are arranged in a circular array along the central axis of the threaded shell. The outer wall of the internal teeth meshes with the outer wall of the driven wheel. The top of the connecting plate is fixedly connected to the bottom of the gear rack. The output end at the bottom of the stepping motor is fixedly connected to a rotating shaft, and the outer wall of the rotating shaft is rotatably connected to the inner wall of the fixing frame. The bottom of the compression spring is fixedly connected to a limiting ring, and the outer wall of the limiting ring is fixedly connected to the outer wall of the flipping shell. The outer wall of the flipping shell is rotatably connected to the outer wall of the connecting frame through a hinge, and the outer wall of the hinge is fixedly connected to the outer wall of the flipping shell.

[0013] Preferably, the quick-connection component includes a rotating shell. A plug block is inserted into the inner wall of the rotating shell through a socket, and the socket is opened in the wall of the rotating shell. A rotating ring is rotatably connected to the outer wall of the rotating shell. A groove is opened in the wall of the rotating ring to increase the friction force of the hand. A blocking block is fixedly connected to the inner wall of the rotating ring, and the blocking blocks are arranged in a circular array along the central axis of the rotating ring. A clamping ball is fixedly connected to the top of the blocking block.

[0014] Preferably, the outer wall of the ball is clamped with the inner wall of the insertion block, the outer wall of the insertion block is in contact with the outer wall of the stopper, the outer wall of the stopper is slidably connected to the inner wall of the rotating shell, the top of the rotating shell is fixedly connected to the bottom of the rotating shaft, and the bottom of the insertion block is fixedly connected to the top of the main cutting knife.

[0015] Preferably, the vibration assembly includes vibrating discs. There are two groups of vibrating discs, and a mounting seat is inserted into the inner wall of each group of vibrating discs. A fixing seat is arranged on the top of the vibrating disc, and the top of the fixing seat is fixedly connected to the bottom of the fixing frame. A sphere is fixedly connected to the inner wall of the fixing seat through a connecting rod, and the top of the connecting rod is rotatably connected to the inner wall of the fixing seat. A second top spring is fixedly connected to the outer wall of the connecting rod.

[0016] Preferably, one end of the second top spring away from the connecting rod is fixedly connected to the bottom of the fixing frame, the bottom of the connecting rod is fixedly connected to the top of the sphere, a ball groove is formed in the wall of the top of each vibrating disc, and the ball grooves are arranged in an annular array along the central axis of the vibrating disc. The outer wall of the sphere is in contact with the outer wall of the top of the vibrating disc. The outer wall of the mounting seat is fixedly connected to the outer wall of the main cutting knife. The materials of the sphere and the vibrating disc are both wear-resistant materials.

[0017] (III) Beneficial effects

[0018] The present invention provides a sampling device for detecting the compactness of a municipal road subgrade. It has the following beneficial effects:

[0019] (I). For the sampling device for detecting the compactness of a municipal road subgrade, by setting the drill knife assembly, the secondary cutting knife of the drill knife assembly can slide in the main cutting knife chute, and through the action of the pressing disc and the pressing ring, the sample can be pressed out. After sampling, by pressing the pressing ring to drive the pressing disc to move downward, the sample can be conveniently pressed out from the main cutting knife. Compared with the traditional sampling method, the sampling efficiency can be improved and the sample can be taken out more completely.

[0020] (II). For the sampling device for detecting the compactness of a municipal road subgrade, by setting the vibration assembly, using the vibration principle and the elastic mechanics principle, during the sampling process, the mechanical vibration generated by the vibrating disc is transmitted to the main cutting knife through the impact of the sphere and the action of the second top spring, effectively reducing the resistance of the subgrade soil to the drill knife assembly, making the drill knife easier to cut into the subgrade. At the same time, the vibration helps to break the soil, improving the quality and efficiency of sampling, especially having a significant effect on subgrade materials with greater hardness.

[0021] (III). The sampling device for detecting the compaction degree of a municipal road subgrade realizes the quick connection and disassembly of the drill bit assembly by setting a quick connection component and applying the mechanical clamping principle. By rotating the rotating ring, the clamping balls are engaged or disengaged with the clamping grooves on the inner wall of the insertion block. This connection method is simple and fast to operate, can shorten the time for replacing the drill bit assembly, improve work efficiency, and is especially suitable for situations where the drill bit needs to be frequently replaced.

[0022] (IV). The sampling device for detecting the compaction degree of a municipal road subgrade realizes the quick fixing and movement switching of the device by setting a transfer component. The insertion post of the transfer component cooperates with the insertion hole, combined with the release and storage of the elastic potential energy of the first top spring. Lifting the insertion post upwards can move the device, and releasing the insertion post will automatically insert it into the insertion hole under the action of the top spring to fix the device. The operation is simple and fast. This flexible positioning method enables the device to quickly reach the sampling position, improves the positioning efficiency compared with the traditional fixing method, and saves the sampling preparation time. Brief Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of the whole of the present invention;

[0024] Figure 2 is a cross-sectional view of the present invention;

[0025] Figure 3 is a schematic structural diagram of the transfer component of the present invention;

[0026] Figure 4 is a schematic structural diagram of the drill bit assembly of the present invention;

[0027] Figure 5 is a schematic structural diagram of the transmission component of the present invention;

[0028] Figure 6 is a schematic structural diagram of part A of the present invention;

[0029] Figure 7 is a schematic structural diagram of the quick connection component of the present invention;

[0030] Figure 8 is a schematic structural diagram of the vibration component of the present invention.

[0031] In the figure: 1, rotating table; 2, transfer component; 3, integrated component; 4, connecting frame; 5, transmission component; 6, drill bit component; 7, vibration component; 8, quick-connect component; 21, fixed shell; 22, fixed ring; 23, insertion post; 24, first top spring; 25, insertion hole; 26, counterweight block; 27, clamping block; 28, moving platform; 51, threaded shell; 52, limiting ring; 53, fixed bracket; 54, flipping shell; 55, compression spring; 56, stepper motor; 57, rotating shaft; 58, connecting plate; 59, internal teeth; 510, gear rack; 511, driving wheel; 512, driven wheel; 61, main cutting tool; 62, baffle; 63, sliding groove; 64, pressing disc; 65, pressing ring; 66, secondary cutting tool; 71, vibrating disc; 72, ball groove; 73, sphere; 74, connecting rod; 75, second top spring; 76, fixed seat; 77, mounting seat; 81, rotating shell; 82, socket; 83, rotating ring; 84, stop block; 85, clamping ball; 86, insertion block.

[0032] Specific implementation

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figure 1-8 , the present invention provides a technical solution: a sampling device for detecting the compactness of a municipal road subgrade, including a rotating table 1, and further including a transfer component 2, the top of the transfer component 2 is fixedly connected to the bottom of the rotating table 1, the inner wall of the rotating table 1 is rotatably connected to an integrated component 3 through a connecting frame 4, and the outer wall of the connecting frame 4 is fixedly connected to the inner wall of the rotating table 1; the integrated component 3 includes a transmission component 5, the outer wall of the transmission component 5 is rotatably connected to the outer wall of the connecting frame 4 through a hinge, the bottom of the transmission component 5 is fixedly connected to a quick-connect component 8, the bottom of the quick-connect component 8 is fixedly connected to a drill bit component 6, and the outer wall of the drill bit component 6 is fixedly connected to a vibration component 7; the drill bit component 6 includes a main cutting tool 61, a secondary cutting tool 66 is slidably connected to the wall of the main cutting tool 61 through a sliding groove 63, and the sliding groove 63 is opened in the wall of the main cutting tool 61, the top of the secondary cutting tool 66 is fixedly connected to a pressing disc 64, the outer wall of the pressing disc 64 is fixedly connected to a pressing ring 65, and the outer wall of the main cutting tool 61 is fixedly connected to a baffle 62. After the sampling work is completed, the stepper motor 56 is rotated in the reverse direction, thereby driving the drill bit component 6 to move upward. Subsequently, the sample in the main cutting tool 61 can be pressed out of the main cutting tool 61 by pressing the pressing ring 65 and driving the pressing disc 64 to move downward through the pressing ring 65. The secondary cutting tool 66 slides in the sliding groove 63 of the main cutting tool 61, so that the square column pressing disc 64 presses out the sample vertically downward.

[0035] The transfer component 2 includes a moving platform 28. A counterweight 26 is inserted into the inner wall of the moving platform 28. A fixed housing 21 is rotatably connected to the top of the moving platform 28. A plug post 23 is slidably connected to the outer wall of the fixed housing 21 through a fixing ring 22, and the outer wall of the fixing ring 22 is fixedly connected to the outer wall of the fixed housing 21. A first top spring 24 is fixedly connected to the outer wall of the plug post 23. One end of the first top spring 24 away from the plug post 23 is fixedly connected to the top of the fixing ring 22. The bottom of the plug post 23 is inserted into the top of the moving platform 28 through a jack 25, and the jack 25 is opened on the top of the moving platform 28. Clamping blocks 27 are fixedly connected to the outer walls on both sides of the moving platform 28, and the outer walls of the clamping blocks 27 are clamped with the outer walls of the counterweight 26.

[0036] The transmission component 5 includes a flipping housing 54. A threaded housing 51 is threadedly connected to the inner wall of the flipping housing 54. A fixing frame 53 is rotatably connected to the inner wall of the threaded housing 51. A stepping motor 56 is fixedly connected to the top of the fixing frame 53. A compression spring 55 is fixedly connected to the outer wall at the top of the fixing frame 53. A gear rack 510 is fixedly connected to the top of the fixing frame 53 through a connecting plate 58, and the bottom of the connecting plate 58 is fixedly connected to the top of the fixing frame 53. A driven wheel 512 is rotatably connected to the inner wall of the gear rack 510. The output end of the stepping motor 56 is fixedly connected to a driving wheel 511. The outer wall of the driving wheel 511 is meshed with the outer wall of the driven wheel 512. An internal gear 59 is fixedly connected to the inner wall of the threaded housing 51, and the internal gear 59 is arranged in a circular array along the central axis of the threaded housing 51. The outer wall of the internal gear 59 is meshed with the outer wall of the driven wheel 512. The top of the connecting plate 58 is fixedly connected to the bottom of the gear rack 510. The output end at the bottom of the stepping motor 56 is fixedly connected to a rotating shaft 57, and the outer wall of the rotating shaft 57 is rotatably connected to the inner wall of the fixing frame 53. The bottom of the compression spring 55 is fixedly connected to a limiting ring 52, and the outer wall of the limiting ring 52 is fixedly connected to the outer wall of the flipping housing 54. The outer wall of the flipping housing 54 is rotatably connected to the outer wall of the connecting frame 4 through a hinge. Through the meshing of the driving wheel 511 and the driven wheel 512, the high-speed rotation of the stepping motor 56 is converted into a speed suitable for sampling operation; the threaded transmission converts the rotational motion into a linear motion, enabling the threaded housing 51 to move up and down, thereby driving the drill bit assembly 6 to perform sampling and retracting operations. At the same time, according to Hooke's law, the compression spring 55 absorbs and releases energy through elastic deformation, playing a role in buffering and stabilizing.

[0037] The quick-connect component 8 includes a rotating housing 81. An insertion block 86 is inserted into the inner wall of the rotating housing 81 through an insertion opening 82, and the insertion opening 82 is formed in the wall of the rotating housing 81. A rotating ring 83 is rotatably connected to the outer wall of the rotating housing 81. A stop block 84 is fixedly connected to the inner wall of the rotating ring 83, and the stop blocks 84 are arranged in an annular array along the central axis of the rotating ring 83. A clamping ball 85 is fixedly connected to the top of the stop block 84. The outer wall of the clamping ball 85 is clamped with the inner wall of the insertion block 86, the outer wall of the insertion block 86 is in contact with the outer wall of the stop block 84, and the outer wall of the stop block 84 is slidably connected to the inner wall of the rotating housing 81. The top of the rotating housing 81 is fixedly connected to the bottom of the rotating shaft 57, and the bottom of the insertion block 86 is fixedly connected to the top of the main cutting tool 61. Rotating the rotating ring 83 clockwise drives the stop block 84 and the clamping ball 85 to rotate together. As the rotating ring 83 rotates, the clamping ball 85 gradually engages into a preset card slot in the inner wall of the insertion block 86, realizing the firm connection between the rotating housing 81 and the insertion block 86, and then connecting the drill tool assembly 6 and the transmission assembly 5 together. When it is necessary to disassemble the drill tool assembly 6, rotate the rotating ring 83 counterclockwise to disengage the clamping ball 85 from the card slot in the inner wall of the insertion block 86, and at this time, the drill tool assembly 6 can be easily removed from the rotating housing 81.

[0038] The vibration assembly 7 includes vibrating discs 71. There are two groups of vibrating discs 71, and an installation seat 77 is inserted into the inner wall of each group of vibrating discs 71. A fixing seat 76 is arranged on the top of the vibrating disc 71. The top of the fixing seat 76 is fixedly connected to the bottom of the fixing frame 53. A sphere 73 is fixedly connected to the inner wall of the fixing seat 76 through a connecting rod 74, and the top of the connecting rod 74 is rotatably connected to the inner wall of the fixing seat 76. A second top spring 75 is fixedly connected to the outer wall of the connecting rod 74, and the end of the second top spring 75 away from the connecting rod 74 is fixedly connected to the bottom of the fixing frame 53. The bottom of the connecting rod 74 is fixedly connected to the top of the sphere 73. A ball groove 72 is formed in the wall of the top of each group of vibrating discs 71, and the ball grooves 72 are arranged in an annular array along the central axis of the vibrating disc 71. The outer wall of the sphere 73 is in contact with the outer wall of the top of the vibrating disc 71. The outer wall of the installation seat 77 is fixedly connected to the outer wall of the main cutting tool 61. Since the fixing frame 53 can only move vertically downward while the vibrating disc 71 is rotating at a high speed, the sphere 73 continuously impacts the ball groove 72 in the vibrating disc 71, thereby forcing the vibrating disc 71 to vibrate continuously and transmitting the vibration to the main cutting tool 61 through the installation seat 77.

[0039] The sampling device is mainly composed of a rotating table 1, a transfer component 2, a connecting frame 4 and an integrated component 3, wherein the transfer component 2 is firmly connected to the bottom of the rotating table 1, providing the entire device with movement and positioning functions; the rotating table 1 is rotatably connected to the integrated component 3 through the connecting frame 4, and the connecting frame 4 not only fixes and supports the integrated component 3, but also allows the integrated component 3 to rotate flexibly within a range of ninety degrees. The integrated component 3, as the core part of the device, integrates a transmission component 5, a quick-connect component 8, a drill component 6 and a vibration component 7, and each component cooperates with each other to complete the sampling task together.

[0040] The transfer component 2 mainly includes a mobile platform 28, a counterweight 26, a fixed shell 21, a fixed ring 22, a column 23 and a first top spring 24. The mobile platform 28 serves as a carrier for the movement of the device, and its interior is designed with a structure for plugging in the counterweight 26; the fixed shell 21 is rotatably connected to the top of the mobile platform 28, the fixed ring 22 is fixed to the outer wall of the fixed shell 21, the column 23 is slidably connected to the fixed ring 22, and the outer wall of the column 23 is connected to the first top spring 24.

[0041] Before the device moves, according to the actual situation of the roadbed and the sampling requirements, the center of gravity and stability of the device can be adjusted by inserting or removing the counterweight 26 from the inner wall of the mobile platform 28. For example, on a soft roadbed, adding a counterweight 26 can make the device more stable and prevent it from tilting during the sampling process. The blocks 27 on both sides of the mobile platform 28 are engaged with the outer walls of the counterweight 26 to ensure that the counterweight 26 will not fall off during the movement of the device. When the device needs to rotate the angular position of the integrated component 3, it only needs to lift the column 23 upward to disengage it from the socket 25. At this time, the device can be moved manually. After moving to the designated sampling position, the pulling force on the column 23 is released. The first top spring 24 pushes the column 23 downward due to its own elastic force, so that its bottom is inserted into the socket 25 at the top of the mobile platform 28, thereby fixing the device.

[0042] This component mainly uses the principles of gravity and elastic mechanics. The counterweight block 26 increases the weight of the device, changes the center of gravity of the device, and uses the effect of gravity to improve the stability of the device under different roadbed conditions; the first top spring 24 acts as an elastic element to store and release elastic potential energy, thereby realizing the self-insertion and extraction of the column 23, thereby completing the fixed and movable switching of the device.

[0043] The transmission assembly 5 is composed of components such as a flipping shell 54, a threaded shell 51, a fixing bracket 53, a stepping motor 56, a compression spring 55, a connecting plate 58, a gear bracket 510, a driven wheel 512, and a driving wheel 511. The inner wall of the flipping shell 54 is connected to the threaded shell 51 in a threaded manner. The inner wall of the threaded shell 51 is rotatably connected to the fixing bracket 53. The stepping motor 56 is installed at the top of the fixing bracket 53. The output end of the stepping motor 56 is connected to the driving wheel 511. The driving wheel 511 meshes with the driven wheel 512 on the inner wall of the gear bracket 510, and the driven wheel 512 meshes with the internal teeth 59 on the inner wall of the threaded shell 51. In addition, the top of the fixing bracket 53 is connected to the gear bracket 510 through the connecting plate 58. The compression spring 55 connects the fixing bracket 53 and the limiting ring 52, and the limiting ring 52 is fixed to the outer wall of the flipping shell 54.

[0044] When a sampling operation is required, the stepping motor 56 is started. The rotor of the stepping motor 56 starts to rotate, driving the driving wheel 511 at the output end to rotate synchronously. Through the meshing relationship with the driven wheel 512, the driving wheel 511 transmits power to the driven wheel 512, causing the driven wheel 512 to start rotating. Since the driven wheel 512 meshes with the internal teeth 59 on the inner wall of the threaded shell 51, the rotation of the driven wheel 512 drives the threaded shell 51 to rotate within the flipping shell 54. According to the principle of screw drive, the rotation of the threaded shell 51 will be converted into its up-and-down linear motion within the flipping shell 54. During the up-and-down movement of the threaded shell 51, the fixing bracket 53, the connecting plate 58, and the gear bracket 510 will move synchronously. The compression spring 55 plays a buffering and stabilizing role in this process. When the threaded shell 51 moves downward, the compression spring 55 is compressed and stores elastic potential energy; when the threaded shell 51 moves upward, the compression spring 55 releases elastic potential energy to offset part of the impact force, ensuring the stable operation of the fixing bracket 53 and the internal components. The cylinder at the top of the fixing bracket 53 cooperates with the limiting ring 52 on the flipping shell 54 to limit the position of the fixing bracket 53, and the position of the stepping motor 56 is limited through the fixing bracket 53.

[0045] This assembly applies the principles of gear drive and screw drive. Gear drive realizes the transmission of power and the conversion of speed. Through the meshing of the driving wheel 511 and the driven wheel 512, the high-speed rotation of the stepping motor 56 is converted into a rotation speed suitable for the sampling operation; screw drive converts the rotational motion into a linear motion, enabling the threaded shell 51 to move up and down, thereby driving the drill bit assembly 6 to perform sampling and retracting operations. At the same time, according to Hooke's law, the compression spring 55 absorbs and releases energy through elastic deformation, playing a buffering and stabilizing role.

[0046] The quick-connect component 8 includes a rotating shell 81, a socket 82, a plug 86, a rotating ring 83, a stop block 84, and a clamping ball 85. The inner wall of the rotating shell 81 is provided with the socket 82 into which the plug 86 can be inserted. The outer wall of the rotating shell 81 is rotatably connected to the rotating ring 83. A plurality of stop blocks 84 arranged in an annular array along its central axis are fixed to the inner wall of the rotating ring 83, and a clamping ball 85 is connected to the top of the stop block 84.

[0047] When installing the drill bit assembly 6, align the plug 86 with the socket 82 of the rotating shell 81 and insert it therein. Then, rotate the rotating ring 83 clockwise. The rotating ring 83 drives the stop block 84 and the clamping ball 85 to rotate together. As the rotating ring 83 rotates, the clamping ball 85 gradually snaps into a preset card slot in the inner wall of the plug 86, realizing the firm connection between the rotating shell 81 and the plug 86, and further connecting the drill bit assembly 6 and the transmission assembly 5 together. When it is necessary to disassemble the drill bit assembly 6, rotate the rotating ring 83 counterclockwise to disengage the clamping ball 85 from the card slot in the inner wall of the plug 86. At this time, the drill bit assembly 6 can be easily removed from the rotating shell 81 to complete the disassembly operation. It should be noted that before operating the quick-connect component 8, the rotation of the stepping motor 56 must be stopped before operating the quick-connect component 8.

[0048] This component utilizes the mechanical clamping principle. By rotating the rotating ring 83, the clamping ball 85 is engaged with or disengaged from the card slot in the inner wall of the plug 86, realizing the quick connection and disassembly of the drill bit assembly 6. This connection method is simple and fast to operate, and can effectively improve work efficiency.

[0049] The drill bit assembly 6 is composed of a main cutting tool 61, a secondary cutting tool 66, a pressure plate 64, a pressure ring 65, and a baffle 62. The secondary cutting tool 66 is slidably connected through a chute 63 in the wall of the main cutting tool 61. The pressure plate 64 and the pressure ring 65 are fixed to the top of the secondary cutting tool 66, and the baffle 62 is fixed to the outer wall of the main cutting tool 61.

[0050] When the transmission assembly 5 drives the drill bit assembly 6 to move downward and contact the roadbed, the main cutting tool 61 first cuts into the roadbed to start the sampling operation. As the main cutting tool 61 cuts to a certain depth and completes the sampling work, reverse-rotate the stepping motor 56, thereby driving the drill bit assembly 6 to move upward. Subsequently, by pressing the pressure ring 65 and driving the pressure plate 64 to move downward through the pressure ring 65, the sample in the main cutting tool 61 can be pressed out of the main cutting tool 61, and the secondary cutting tool 66 slides in the chute 63 of the main cutting tool 61, so that the pressure plate 64 vertically presses out the sample downward.

[0051] The vibration assembly 7 is composed of two sets of vibrating discs 71, a mounting seat 77, a fixed seat 76, a connecting rod 74, a sphere 73 and a second top spring 75. The vibrating disc 71 is fixed to the outer wall of the main cutting tool 61 through the mounting seat 77. The top of the fixed seat 76 is connected to the bottom of the fixed frame 53. The inner wall of the fixed seat 76 is rotatably connected to the sphere 73 through the connecting rod 74. The outer wall of the connecting rod 74 is connected to the second top spring 75, and the other end of the second top spring 75 is connected to the bottom of the fixed frame 53.

[0052] When the insertion block 86 drives the main cutting tool 61 to rotate and during the sampling process, the vibrating disc 71 is fixed to the main cutting tool 61 through the mounting seat 77, so that the vibrating disc 71 can be driven to rotate synchronously by the main cutting tool 61. The bottom of the fixed frame 53 is fixed with a fixed seat 76, and the fixed seat 76 is connected with a sphere 73 through a connecting rod 74, so that the sphere 73 is located on the top of the vibrating disc 71. Since the fixed frame 53 can only move vertically downward and the vibrating disc 71 is rotating at a high speed, the sphere 73 continuously impacts the ball groove 72 on the vibrating disc 71, thereby forcing the vibrating disc 71 to vibrate continuously, and transmitting the vibration to the main cutting tool 61 through the mounting seat 77. The second top spring 75 on the connecting rod 74 continuously pushes the sphere 73 against the vibrating disc 71. During the sampling process, the vibration can effectively reduce the resistance of the subgrade soil to the drill tool assembly 6, making it easier for the drill tool to cut into the subgrade, and helping to break up the soil, improving the quality and efficiency of sampling. This assembly applies the vibration principle and the principle of elasticity mechanics. The vibrating disc 71 generates mechanical vibration and uses the energy of the vibration to reduce the internal friction and cohesion of the soil, thereby reducing the resistance of the drill tool to cut into the soil.

[0053] When actually using the municipal road subgrade compactness detection and sampling device, first, according to the specific situation of the subgrade and the sampling position, use the transfer component 2 to move the device to a suitable location. During the movement, reasonably adjust the quantity and position of the counterweight blocks 26 as needed to ensure the stability of the device. After reaching the sampling position, fix the device through the cooperation of the insertion post 23 and the insertion hole 25.

[0054] Then, rotate the rotating table 1 to align the integrated component 3 with the sampling point, start the stepping motor 56 in the transmission component 5, and drive the drill tool assembly 6 to cut into the subgrade downward through gear transmission and screw transmission. During the cutting process, synchronously use vibration to reduce the soil resistance and improve the sampling efficiency.

[0055] After sampling is completed, start the stepping motor 56 in the reverse direction to withdraw the drill tool assembly 6 from the subgrade. If it is necessary to replace the drill tool assembly 6, through the operation of the quick connection component 8, quickly disassemble and install a new drill tool assembly 6, and then repeat the above sampling operation.

[0056] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0057] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for detecting compaction of a municipal road subgrade, comprising a rotating table (1), characterized in that: It also comprises a transfer component (2), the top of the transfer component (2) being fixedly connected to the bottom of the rotating platform (1), the inner wall of the rotating platform (1) being rotatably connected to the integrated component (3) via a connecting frame (4), and the outer wall of the connecting frame (4) being fixedly connected to the inner wall of the rotating platform (1); The integrated component (3) comprises a transmission assembly (5), the outer wall of the transmission assembly (5) being rotatably connected to the outer wall of the connection frame (4) via a hinge, the bottom of the transmission assembly (5) being fixedly connected to a quick-connect assembly (8), the bottom of the quick-connect assembly (8) being fixedly connected to a drill assembly (6), and the outer wall of the drill assembly (6) being fixedly connected to a vibration assembly (7); The drill assembly (6) comprises a main cutter (61), a secondary cutter (66) being slidably connected to the wall of the main cutter (61) via a slide groove (63), and the slide groove (63) is formed in the wall of the main cutter (61), a pressure plate (64) is fixedly connected to the top of the secondary cutter (66), a pressure ring (65) is fixedly connected to the outer wall of the pressure plate (64), and a baffle (62) is fixedly connected to the outer wall of the main cutter (61).

2. A sampling device for detecting compaction of a municipal road subgrade according to claim 1, characterized in that: The transfer component (2) comprises a mobile platform (28), the inner wall of which is plugged with a counterweight (26), the top of which is rotatably connected to a fixed shell (21), the outer wall of which is slidably connected to a plug post (23) via a fixed ring (22), the outer wall of which is fixedly connected to the outer wall of the fixed shell (21), and the outer wall of which is fixedly connected to the outer wall of the fixed shell (21), and the outer wall of which is fixedly connected to the first top spring (24).

3. A sampling device for detecting compaction of a municipal road subgrade according to claim 2, characterized in that: One end of the first top spring (24) away from the plug post (23) is fixedly connected to the top of the fixing ring (22); the bottom of the plug post (23) is plugged into the top of the mobile platform (28) via a plug hole (25); and the plug hole (25) is provided at the top of the mobile platform (28); the outer walls on both sides of the mobile platform (28) are fixedly connected with a clamping block (27); and the outer wall of the clamping block (27) is clamped into the outer wall of the counterweight (26).

4. A sampling device for detecting compaction of a municipal road subgrade according to claim 1, characterized in that: The transmission assembly (5) comprises a flip shell (54), the inner wall of the flip shell (54) being threadedly connected to a threaded shell (51), the inner wall of the threaded shell (51) being rotatably connected to a fixing frame (53), the top of the fixing frame (53) being fixedly connected to a stepping motor (56), the outer wall of the top of the fixing frame (53) being fixedly connected to a compression spring (55), the top of the fixing frame (53) being fixedly connected to a gear frame (510) via a connecting plate (58), the bottom of the connecting plate (58) being fixedly connected to the top of the fixing frame (53), the inner wall of the gear frame (510) being rotatably connected to a driven wheel (512), and the output end of the stepping motor (56) being fixedly connected to a driving wheel (511).

5. A sampling device for detecting compaction of a municipal road subgrade according to claim 4, characterized in that: The outer wall of the driving wheel (511) meshes with the outer wall of the driven wheel (512); the inner wall of the threaded shell (51) is fixedly connected with internal teeth (59), and the internal teeth (59) are arranged in a ring array along the central axis of the threaded shell (51); the outer wall of the internal teeth (59) meshes with the outer wall of the driven wheel (512); the top of the connecting plate (58) is fixedly connected with the bottom of the gear rack (510); the output end of the bottom of the stepping motor (56) is fixedly connected with a rotating shaft (57); the outer wall of the rotating shaft (57) is rotatably connected to the inner wall of the fixing frame (53); the bottom of the compression spring (55) is fixedly connected with a limiting ring (52); the outer wall of the limiting ring (52) is fixedly connected to the outer wall of the flip shell (54); the outer wall of the flip shell (54) is rotatably connected to the outer wall of the connecting frame (4) via a hinge.

6. A sampling device for detecting compaction of a municipal road subgrade according to claim 1, characterized in that: The quick-connect assembly (8) comprises a rotating shell (81), an inner wall of the rotating shell (81) being plugged with an insert block (86) via a socket (82), and the socket (82) being provided in the wall of the rotating shell (81), an outer wall of the rotating shell (81) being rotatably connected to a rotating ring (83), an inner wall of the rotating ring (83) being fixedly connected to a stopper block (84), and the stopper blocks (84) being arranged in a circular array along the central axis of the rotating ring (83), and a blocking ball (85) being fixedly connected to the top of the stopper block (84).

7. A sampling device for detecting compaction of a municipal road subgrade according to claim 6, characterized in that: The outer wall of the locking ball (85) is locked with the inner wall of the insert block (86), the outer wall of the insert block (86) is in contact with the outer wall of the stop block (84), the outer wall of the stop block (84) is slidably connected to the inner wall of the rotating shell (81), the top of the rotating shell (81) is fixedly connected to the bottom of the rotating shaft (57), and the bottom of the insert block (86) is fixedly connected to the top of the main cutting knife (61).

8. A sampling device for detecting compaction of a municipal road subgrade according to claim 1, characterized in that: The vibration assembly (7) comprises a vibration disk (71), wherein two groups of the vibration disks (71) are provided, and the inner wall of each group of the vibration disks (71) is plugged with a mounting seat (77), a fixing seat (76) is provided at the top of the vibration disk (71), the top of the fixing seat (76) is fixedly connected to the bottom of the fixing frame (53), the inner wall of the fixing seat (76) is fixedly connected to a sphere (73) via a connecting rod (74), the top of the connecting rod (74) is rotatably connected to the inner wall of the fixing seat (76), and the outer wall of the connecting rod (74) is fixedly connected to a second top spring (75).

9. A sampling device for detecting compaction of a municipal road subgrade according to claim 8, characterized in that: One end of the second top spring (75) away from the connecting rod (74) is fixedly connected to the bottom of the fixing frame (53), the bottom of the connecting rod (74) is fixedly connected to the top of the sphere (73), a ball groove (72) is opened in the wall of the top of each group of the vibration disks (71), and the ball grooves (72) are arranged in a circular array along the central axis of the vibration disk (71), the outer wall of the sphere (73) is in contact with the outer wall of the top of the vibration disk (71), and the outer wall of the mounting seat (77) is fixedly connected to the outer wall of the main cutting knife (61).

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