Portable roadbed compactness rapid detection device

By integrating a battery-powered and electric push rod-driven ring cutter design into the roadbed compaction testing device, the problem of carrying multiple tools in existing technologies has been solved, enabling portable and rapid testing and efficient multi-point sampling.

CN223827493UActive Publication Date: 2026-01-23陕西省交通规划设计研究院有限公司
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Patent Information

Application Number
CN202520259247.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2026-01-23
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

Existing roadbed compaction testing devices require carrying multiple tools, which is inconvenient and hinders staff from efficiently conducting multi-point sampling and testing.

Method used

A portable rapid testing device for roadbed compaction was designed, including a mobile base, an electronic scale, an electric push rod, and a ring cutter. Powered by a battery, the electric push rod drives the ring cutter to insert into the roadbed for sampling, and the sample is weighed directly on the electronic scale, simplifying the operation process.

Benefits of technology

It enables portable roadbed compaction testing, simplifies the operation process, improves testing efficiency, facilitates rapid soil sampling and weighing at multiple points, and enhances the convenience of testing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a portable roadbed compactness rapid detection device which comprises a mobile base, a storage battery is arranged on the upper portion of the mobile base, an electronic scale is installed at the top end of the mobile base, the electronic scale is electrically connected with the storage battery, a bearing rod is arranged on one side of the mobile base, an electric push rod is arranged at the top end of the bearing rod, and the electric push rod is electrically connected with the storage battery. The output end of the electric push rod is connected with a gland, the gland is detachably connected with the electric push rod, and a cutting ring is arranged at the bottom end of the gland. The front end of the movable base is rotationally connected with a pull rod. The storage battery is arranged on the movable base, the electronic scale is mounted at the top of the storage battery, a soil sample can be weighed through the electronic scale, the bearing rod is arranged on one side of the movable base, the electric push rod is arranged at the top of the bearing rod, and the electric push rod can drive the cutting ring to be pressed into a roadbed, so that the cutting ring can be conveniently and quickly inserted into the roadbed; the roadbed soil can be conveniently sampled, and the sampled soil can be directly placed on an electronic scale to be weighed.
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Description

Technical Field

[0001] This utility model relates to the technical field of roadbed testing equipment, specifically a portable rapid testing device for roadbed compaction. Background Technology

[0002] In road construction, subgrade compaction is one of the key indicators for measuring subgrade quality, as it directly affects the stability, durability, and load-bearing capacity of the road. Traditional methods for testing subgrade compaction mainly include the ring cutter method, sand cone method, and nuclear density meter method.

[0003] In the prior art, Chinese Patent Publication No. CN220079951U discloses a roadbed compaction testing sampling device, including a mounting frame, a reduction motor, a telescopic cylinder, and a ring cutter. The mounting frame includes a base, a top frame disposed above the base, and a support member supporting the base and the top frame around the perimeter. A sampling port is provided at the center of the base, and a rotating disk is rotatably mounted on the top frame. The reduction motor is mounted on the mounting frame and is used to drive the rotating disk to rotate. The telescopic cylinder is coaxially fixed to the lower side of the rotating disk, and the output end of the telescopic cylinder faces downward. The ring cutter is coaxially fixed to the output end of the telescopic cylinder. The ring cutter can pass through the sampling port or retract to the upper side of the sampling port under the drive of the telescopic cylinder. Several vertically extending cutting strips are provided on the inner wall of the ring cutter.

[0004] The roadbed compaction testing sampling device provided by the aforementioned patent uses the ring cutter method to test and sample the roadbed compaction. However, this type of testing device mainly uses a ring cutter for sampling, and the sampled sample still needs to be weighed using an electronic scale. However, carrying multiple tools such as an electronic scale and a ring cutter is very inconvenient and not conducive to workers efficiently conducting multi-point sampling tests. Utility Model Content

[0005] The purpose of this invention is to provide a portable rapid testing device for roadbed compaction, which aims to improve the problem that existing testing devices require carrying multiple tools such as electronic scales and ring cutters, which is inconvenient and hinders workers from efficiently conducting multi-point sampling tests.

[0006] This utility model is implemented as follows:

[0007] A portable rapid roadbed compaction testing device includes a mobile base, a battery mounted on the upper part of the mobile base, an electronic scale mounted on the top of the mobile base, the electronic scale being electrically connected to the battery, a support rod on one side of the mobile base, an electric push rod at the top of the support rod, a pressure cap connected to the output end of the electric push rod, the pressure cap being detachably connected to the electric push rod, and a ring cutter at the bottom end of the pressure cap; a pull rod is rotatably connected to the front end of the mobile base.

[0008] Preferably, the movable base is equipped with casters at the bottom corners, the battery has a sleeve on one side, a clamping knob is provided in the middle of the side of the sleeve, and a power connection slot is provided on the side of the battery.

[0009] Preferably, the electronic scale has a tray at the top, a wire on the side, a connector at the end of the wire, and the connector is connected to a battery; the electronic scale has symmetrical fixing plates on both sides at the bottom, the fixing plates have multiple fixing holes, and the electronic scale has a control panel at the front.

[0010] Preferably, the top of the pull rod is provided with a handle, and the bottom of the pull rod is provided with an adapter. The adapter is provided with a pin hole in the middle, and the pull rod is rotatably connected to the movable base through the pin.

[0011] Preferably, the support rod is L-shaped, with a through hole at the top and an insertion rod at the bottom, the insertion rod being inserted into the inside of the sleeve.

[0012] Preferably, the electric push rod has a mounting plate at its bottom end, and mounting holes are provided at the corners of the mounting plate. The output end of the electric push rod has a telescopic rod that passes through the through hole. The bottom end of the telescopic rod has a mounting joint with a threaded groove in the middle. The top of the electric push rod has a connecting wire with a power plug at its end, and the power plug is connected to the battery.

[0013] Preferably, the top of the pressure cap is provided with a connecting rod, the top of the connecting rod is provided with a stud, and the stud is threadedly connected to the threaded groove; the bottom surface of the pressure cap is provided with a first magnetic ring.

[0014] Preferably, the bottom end of the ring cutter is provided with a cutting edge, and the top end of the ring cutter is provided with a second magnetic ring, which is attracted and connected to the first magnetic ring.

[0015] Preferably, it also includes a pull-out box, and the movable base has a mounting groove on one side, with the pull-out box installed inside the mounting groove.

[0016] Preferably, the end of the pull-out box facing the inside of the mounting groove is provided with a magnetic suction plate for adsorbing the pull-out box to the movable base, and the end of the pull-out box facing the outside is provided with a pull opening.

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

[0018] 1. This utility model features a battery mounted on a mobile base, with an electronic scale installed on top of the battery. The electronic scale can weigh soil samples. A support rod is provided on one side of the mobile base, and an electric push rod is provided on top of the support rod. The electric push rod can drive the ring cutter to press into the roadbed, thus facilitating the rapid insertion of the ring cutter into the roadbed and making it convenient to sample the roadbed soil. The sampled soil can be directly placed on the electronic scale for weighing, which facilitates the rapid detection of the roadbed compaction degree.

[0019] 2. When using this utility model, the movable base makes it convenient for staff to carry various testing tools, facilitating rapid soil sampling and testing at various testing points.

[0020] 3. This utility model is equipped with a pull-out box, which can store some commonly used tools, making it convenient to carry these tools and thus assisting workers in carrying out roadbed inspection work. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the movable base of this utility model from a top-down view from the left rear.

[0023] Figure 3 This is a structural schematic diagram of the movable base of this utility model from a right rear oblique angle;

[0024] Figure 4 This is a schematic diagram of the structure of the electronic scale of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the pull rod of this utility model;

[0026] Figure 6 This is a structural schematic diagram of the support rod of this utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the electric push rod of this utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the pressure cap of this utility model;

[0029] Figure 9 This is a schematic diagram of the structure of the ring cutter of this utility model;

[0030] Figure 10 This is a structural schematic diagram of the pull-out box of this utility model.

[0031] In the diagram: 1. Movable base; 11. Battery; 12. Mounting slot; 13. Casters; 14. Sleeve; 15. Clamping knob; 16. Power connection slot; 2. Electronic scale; 21. Tray; 22. Wire; 23. Connector; 24. Fixing plate; 25. Fixing hole; 26. Control panel; 3. Pull rod; 31. Handle; 32. Adapter; 33. Pin hole; 4. Support rod; 41. Through hole; 42. Insert rod; 5. Electric push rod; 51. Mounting plate; 52. Mounting hole; 53. Telescopic rod; 54. Mounting connector; 55. Threaded groove; 56. Connecting wire; 57. Power plug; 6. Cover; 61. Connecting rod; 62. Stud; 63. First magnetic ring; 7. Ring cutter; 71. Blade edge; 72. Second magnetic ring; 8. Pull-out box; 81. Magnetic plate; 82. Pull opening. Detailed implementation method:

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0034] Example 1

[0035] like Figure 1 As shown, a portable rapid roadbed compaction testing device includes a mobile base 1, with a battery 11 mounted on top. The mobile base 1 facilitates the movement of all components, making it convenient for personnel to carry the rapid roadbed compaction testing device. An electronic scale 2 is mounted on the top of the mobile base 1, electrically connected to the battery 11. This structure allows the battery 11 to power the electronic scale 2. A support rod 4 is located on one side of the mobile base 1, with an electric push rod 5 at its top. The support rod 4 facilitates the installation and stable use of the electric push rod 5. A pressure cap 6 is connected to the output end of the electric push rod 5, detachably connected to the electric push rod 5. A ring cutter 7 is located at the bottom of the pressure cap 6; the pressure cap 6 facilitates pressure on the ring cutter 7, allowing it to embed into the roadbed for soil sampling. A pull rod 3 is rotatably connected to the front end of the mobile base 1, allowing for flexible movement of the mobile base 1.

[0036] like Figure 2 and Figure 3As shown, the movable base 1 is equipped with casters 13 at each corner of its bottom surface, which facilitates the flexible use and movement of the movable base 1. A sleeve 14 is provided on one side of the battery 11, and a clamping knob 15 is located in the middle of the side of the sleeve 14. The sleeve 14, in conjunction with the clamping knob 15, facilitates the fixing of the support rod 4. A power connection slot 16 is provided on the side of the battery 11, which facilitates power connection to the electric push rod 5 or the electronic scale 2.

[0037] like Figure 4 As shown, the electronic scale 2 has a tray 21 at its top, which is convenient for placing soil samples for testing. A wire 22 is located on the side of the electronic scale 2, and the end of the wire 22 has a connector 23, which is connected to the battery 11 for easy power supply and operation. Symmetrical mounting plates 24 are located on both sides of the bottom of the electronic scale 2. Each mounting plate 24 has multiple mounting holes 25, which are used to secure the electronic scale 2 in place with bolts. A control panel 26 is located at the front of the electronic scale 2 for easy operation.

[0038] like Figure 5 As shown, the top of the pull rod 3 is provided with a handle 31, which facilitates pulling the pull rod 3. The bottom of the pull rod 3 is provided with an adapter 32, and the middle of the adapter 32 is provided with a pin hole 33. The pull rod 3 is rotatably connected to the movable base 1 through the pin, which facilitates the rotatable connection between the pull rod 3 and the movable base 1.

[0039] like Figure 6 As shown, the support rod 4 is L-shaped, and the top of the support rod 4 is provided with a through hole 41, which facilitates the output end of the electric push rod 5 to pass through the support rod 4. The bottom of the support rod 4 is provided with an insert rod 42, which is inserted into the inside of the sleeve 14 to facilitate the installation and use of the support rod 4.

[0040] like Figure 7 As shown, the electric actuator 5 has a mounting plate 51 at its bottom end, with mounting holes 52 at each corner. The mounting plate 51 and the mounting holes 52 are designed to facilitate fixing the position of the electric actuator 5 with bolts. The output end of the electric actuator 5 has a telescopic rod 53 that passes through the through hole 41, allowing the pressure cover 6 to move up and down. The bottom end of the telescopic rod 53 has a mounting connector 54 with a threaded groove 55 in the middle, allowing for detachable connection with the pressure cover 6. The top of the electric actuator 5 has a connecting wire 56 with a power plug 57 at its end, which is connected to the battery 11. This structure facilitates the operation of the electric actuator 5 when powered.

[0041] like Figure 8As shown, the top of the pressure cap 6 is provided with a connecting rod 61, and the top of the connecting rod 61 is provided with a stud 62. The stud 62 is threadedly connected to the threaded groove 55, which facilitates the flexible use and disassembly of the pressure cap 6. The bottom surface of the pressure cap 6 is provided with a first magnetic ring 63, which facilitates the connection between the ring cutter 7 and the pressure cap 6 by magnetic attraction.

[0042] like Figure 9 As shown, the ring cutter 7 has a cutting edge 71 at its bottom end, which facilitates the smooth insertion of the ring cutter 7 into the roadbed soil. Furthermore, the top of the ring cutter 7 has a second magnetic ring 72, which is magnetically connected to the first magnetic ring 63. This structure facilitates the installation of the ring cutter 7.

[0043] Example 2

[0044] like Figure 1 As shown, a portable rapid roadbed compaction testing device includes a mobile base 1, with a battery 11 mounted on top. The mobile base 1 facilitates the movement of all components, making it convenient for personnel to carry the rapid roadbed compaction testing device. An electronic scale 2 is mounted on the top of the mobile base 1, electrically connected to the battery 11. This structure allows the battery 11 to power the electronic scale 2. A support rod 4 is located on one side of the mobile base 1, with an electric push rod 5 at its top. The support rod 4 facilitates the installation and stable use of the electric push rod 5. A pressure cap 6 is connected to the output end of the electric push rod 5, detachably connected to the electric push rod 5. A ring cutter 7 is located at the bottom of the pressure cap 6; the pressure cap 6 facilitates pressure on the ring cutter 7, allowing it to embed into the roadbed for soil sampling. A pull rod 3 is rotatably connected to the front end of the mobile base 1, allowing for flexible movement of the mobile base 1.

[0045] like Figure 2 and Figure 3 As shown, the movable base 1 is equipped with casters 13 at each corner of its bottom surface, which facilitates the flexible movement and use of the movable base 1. A sleeve 14 is provided on one side of the battery 11, and a clamping knob 15 is located in the middle of the side of the sleeve 14. The sleeve 14, in conjunction with the clamping knob 15, facilitates the fixing of the support rod 4. A power connection slot 16 is provided on the side of the battery 11, which facilitates power connection to the electric push rod 5 or the electronic scale 2.

[0046] like Figure 4As shown, the electronic scale 2 has a tray 21 at its top, which is used to conveniently place the soil sample for testing. A wire 22 is located on the side of the electronic scale 2, and the end of the wire 22 has a connector 23, which is connected to the battery 11 for easy power supply and operation. Symmetrical mounting plates 24 are located on both sides of the bottom of the electronic scale 2. Each mounting plate 24 has multiple mounting holes 25, which are used to secure the electronic scale 2 in place with bolts. A control panel 26 is located at the front of the electronic scale 2 for easy operation.

[0047] like Figure 5 As shown, the top of the pull rod 3 is provided with a handle 31, which facilitates pulling the pull rod 3. The bottom of the pull rod 3 is provided with an adapter 32, and the middle of the adapter 32 is provided with a pin hole 33. The pull rod 3 is rotatably connected to the movable base 1 through the pin, which facilitates the rotatable connection between the pull rod 3 and the movable base 1.

[0048] like Figure 6 As shown, the support rod 4 is L-shaped, and the top of the support rod 4 is provided with a through hole 41, which allows the output end of the electric push rod 5 to pass through the support rod 4. The bottom of the support rod 4 is provided with an insert rod 42, which is inserted into the inside of the sleeve 14 to facilitate the installation and use of the support rod 4.

[0049] like Figure 7 As shown, the electric actuator 5 has a mounting plate 51 at its bottom end, with mounting holes 52 at each corner. The mounting plate 51 and the mounting holes 52 are designed to facilitate fixing the position of the electric actuator 5 with bolts. The output end of the electric actuator 5 has a telescopic rod 53 that passes through the through hole 41, allowing the pressure cover 6 to move up and down. The bottom end of the telescopic rod 53 has a mounting connector 54 with a threaded groove 55 in the middle, allowing for detachable connection with the pressure cover 6. The top of the electric actuator 5 has a connecting wire 56 with a power plug 57 at its end, which is connected to the battery 11. This structure facilitates the operation of the electric actuator 5 when powered.

[0050] like Figure 8 As shown, the top of the pressure cap 6 is provided with a connecting rod 61, and the top of the connecting rod 61 is provided with a stud 62. The stud 62 is threadedly connected to the threaded groove 55, which facilitates the flexible disassembly and use of the pressure cap 6. The bottom surface of the pressure cap 6 is provided with a first magnetic ring 63, which facilitates the connection between the ring cutter 7 and the pressure cap 6 by magnetic attraction.

[0051] like Figure 9 As shown, the ring cutter 7 has a cutting edge 71 at its bottom end, which facilitates the smooth insertion of the ring cutter 7 into the roadbed soil. The top of the ring cutter 7 has a second magnetic ring 72, which is magnetically connected to the first magnetic ring 63. This structure facilitates the installation of the ring cutter 7.

[0052] like Figure 1 and Figure 2 As shown, it also includes a pull-out box 8. The movable base 1 has an installation groove 12 on one side, and the pull-out box 8 is installed inside the installation groove 12. The installation groove 12 facilitates the installation of the pull-out box 8 and makes it easy to flexibly assemble and disassemble the pull-out box 8.

[0053] like Figure 10 As shown, the end of the pull-out box 8 facing the inside of the mounting groove 12 is provided with a magnetic suction plate 81 for the pull-out box 8 to be magnetically connected to the movable base 1. The end of the pull-out box 8 facing the outside is provided with a pull opening 82, which facilitates the pulling of the pull-out box 8 and makes it easy to disassemble and use the pull-out box 8.

[0054] Working principle: During use, move the entire testing equipment to the designated testing point according to the requirements. Clean the roadbed surface at the testing point, then move the equipment so that the ring cutter 7 is aligned with the sampling location on the roadbed. Control the electric push rod 5 to press the ring cutter 7 into the roadbed surface. Then, use other tools to remove the ring cutter 7 and the soil inside it, and trim the soil edges. Afterward, place the sampled soil on the electronic scale 2 for weighing and record the data for subsequent calculation of soil compaction. After the test is completed, move the entire testing equipment to the next testing point to continue monitoring and recording data.

[0055] In summary, compared with the prior art, this application provides a solution by installing a battery 11 on the mobile base 1, with an electronic scale 2 mounted on top of the battery 11. The electronic scale 2 can weigh the soil sample. The mobile base 1 also has a support rod 4 on one side, with an electric push rod 5 on top of the support rod 4. The electric push rod 5 can drive the ring cutter 7 to be pressed into the roadbed, thus facilitating the rapid insertion of the ring cutter 7 into the roadbed and making it convenient to sample the roadbed soil. The sampled soil can be directly placed on the electronic scale 2 for weighing, which facilitates the rapid detection of the roadbed compaction. Furthermore, pulling the mobile base 1 makes it convenient for staff to carry various testing tools, facilitating the rapid sampling and testing of soil at various testing points.

[0056] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A portable rapid testing device for roadbed compaction, comprising a movable base (1), characterized in that, The mobile base (1) is equipped with a battery (11) on its upper part. An electronic scale (2) is installed on the top of the mobile base (1). The electronic scale (2) is electrically connected to the battery (11). A support rod (4) is provided on one side of the mobile base (1). An electric push rod (5) is provided at the top of the support rod (4). A pressure cap (6) is connected to the output end of the electric push rod (5). The pressure cap (6) is detachably connected to the electric push rod (5). A ring knife (7) is provided at the bottom end of the pressure cap (6). A pull rod (3) is rotatably connected to the front end of the mobile base (1).

2. The portable rapid detection device for roadbed compaction according to claim 1, characterized in that, The movable base (1) is equipped with casters (13) at the bottom corners, the battery (11) is equipped with a sleeve (14) on one side, the sleeve (14) is equipped with a clamping knob (15) in the middle of its side, and the battery (11) is equipped with a power connection slot (16) on its side.

3. The portable rapid detection device for roadbed compaction according to claim 1, characterized in that, The electronic scale (2) has a tray (21) at the top, a wire (22) on the side, a connector (23) at the end of the wire (22), and the connector (23) is connected to the battery (11). The electronic scale (2) has a fixing plate (24) symmetrically arranged on both sides of the bottom, and a plurality of fixing holes (25) on the fixing plate (24). The electronic scale (2) has a control panel (26) at the front end.

4. The portable rapid detection device for roadbed compaction according to claim 1, characterized in that, The top of the pull rod (3) is provided with a handle (31), and the bottom of the pull rod (3) is provided with an adapter (32). The adapter (32) is provided with a pin hole (33) in the middle. The pull rod (3) is rotatably connected to the movable base (1) through the pin.

5. The portable rapid detection device for roadbed compaction according to claim 1, characterized in that, The support rod (4) is L-shaped, and the top of the support rod (4) is provided with a through hole (41), and the bottom of the support rod (4) is provided with an insertion rod (42), which is inserted into the inside of the sleeve (14).

6. The portable rapid detection device for roadbed compaction according to claim 5, characterized in that, The electric push rod (5) has a mounting plate (51) at its bottom end. The mounting plate (51) has mounting holes (52) at its corners. The electric push rod (5) has a telescopic rod (53) at its output end. The telescopic rod (53) passes through a through hole (41). The telescopic rod (53) has a mounting connector (54) at its bottom end. The mounting connector (54) has a threaded groove (55) in the middle. The electric push rod (5) has a connecting wire (56) at its top. The connecting wire (56) has a power plug (57) at its end. The power plug (57) is connected to the battery (11).

7. A portable rapid detection device for roadbed compaction as described in claim 6, characterized in that, The top of the pressure cap (6) is provided with a connecting rod (61), the top of the connecting rod (61) is provided with a stud (62), and the stud (62) is threadedly connected to the threaded groove (55); the bottom surface of the pressure cap (6) is provided with a first magnetic ring (63).

8. A portable rapid detection device for roadbed compaction as described in claim 7, characterized in that, The ring cutter (7) has a cutting edge (71) at the bottom end and a second magnetic ring (72) at the top, which is attracted to the first magnetic ring (63).

9. A portable rapid detection device for roadbed compaction according to any one of claims 1-8, characterized in that, It also includes a pull-out box (8), and the movable base (1) has an installation groove (12) on one side, and the pull-out box (8) is installed inside the installation groove (12).

10. A portable rapid detection device for roadbed compaction according to claim 9, characterized in that, The pull-out box (8) has a magnetic plate (81) at one end facing the inside of the mounting groove (12) for adsorption connection between the pull-out box (8) and the movable base (1). The pull-out box (8) has a pull opening (82) at one end facing the outside.

Citation Information

Patent Citations

  • Roadbed compactness detecting and sampling device

    CN220079951U