Portable instrument for detecting compaction degree of highway subgrade

Abstract

The utility model discloses portable instrument of highway roadbed compactness detection, include: the inside hole taking subassembly of being used for punching of sliding connection in the support fixed component, the support fixed component is connected with two groups of portable handle before and after. The utility model has the advantages of the following: through being provided with the support fixed component, make the device cooperate portable handle convenient to carry, and provide stable conditions for the use of hole taking subassembly, through being provided with hole taking subassembly, make the device can be in the support fixed component and stably open the hole to the road surface, form the same up and down of cavity.

Description

Technical Field

[0001] This utility model relates to the field of roadbed compaction testing technology, specifically a portable instrument for testing highway roadbed compaction. Background Technology

[0002] Roadbed compaction testing is a crucial step in ensuring the quality of road engineering. It is typically conducted using standardized methods such as the sand cone method, ring sampler method, or nuclear density meter. During testing, measuring points must be set up according to specifications along a designated road section. The compaction coefficient is calculated by measuring the ratio of the actual dry density of the soil to the maximum theoretical dry density. Strict control must be exercised over sampling depth, location, and environmental factors to ensure the data accurately reflects the compaction degree of different layers of the roadbed. This indicator directly relates to the bearing capacity and long-term stability of the pavement structure, providing important data for construction quality acceptance and subsequent maintenance.

[0003] Highway subgrade compaction testing instruments are core equipment for ensuring the quality of road foundation engineering. These instruments mainly include specialized equipment such as sand-filling devices, electric compactors, nuclear density and hygrometers, and ring samplers. By accurately measuring the wet density and moisture content of the soil on-site and comparing this with the maximum dry density obtained from standard indoor compaction tests, these instruments can quickly determine the compaction coefficient of layers at different depths. Intelligent equipment is also equipped with digital sensors and automatic calculation systems, enabling real-time data transmission and storage, effectively improving testing efficiency and accuracy, and providing reliable technical support for subgrade construction quality control.

[0004] Existing portable instruments for testing the compaction of highway subgrade using the sand-filling method often require drilling to create holes in the road surface, resulting in uneven cavities. Furthermore, these instruments are inconvenient to carry and use. Therefore, there is an urgent need for a portable instrument for testing the compaction of highway subgrade that offers better hole-making results and is more convenient to carry. Utility Model Content

[0005] The purpose of this invention is to provide a portable instrument for testing the compaction degree of highway subgrade, thereby solving the problems in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a portable instrument for testing the compaction degree of highway subgrade, comprising: a hole-drilling component slidably connected inside a support and fixing component for drilling holes, wherein the support and fixing component is connected to two sets of portable handles at the front and rear.

[0007] Preferably, the support and fixing assembly includes a support and fixing cylinder, a transparent observation plate is provided at the front end of the support and fixing cylinder, an upper protective cover is threaded to the upper end of the support and fixing cylinder, two sets of side fixing plates are connected to the left and right sides of the bottom of the support and fixing cylinder, and two sets of bottom locking blocks are connected to the two sides of the bottom inner wall of the support and fixing cylinder. The side fixing plates are fixed by a first fixing bolt. By providing the support and fixing assembly, the device can be easily carried with a portable handle, while providing stable conditions for the use of the hole-making assembly.

[0008] Preferably, the upper end of the supporting and fixing cylinder is provided with a connecting thread, the upper protective cover is provided with a threaded groove that matches the supporting and fixing cylinder, and the supporting and fixing cylinder is provided with a groove that matches the transparent observation plate, providing a basis for convenient carrying of the supporting and fixing components.

[0009] Preferably, the inner wall of the supporting and fixing cylinder is provided with a sliding groove that cooperates with the hole-making component, and the two side fixing plates are provided with grooves that cooperate with the first fixing bolts. The two sets of portable handles are located on the front and rear sides of the two sets of side fixing plates, providing a basis for the stable use of the hole-making component.

[0010] Preferably, the hole-making component includes an upper sliding rod, a motor is fixedly connected to the bottom of the upper sliding rod, a handle is connected to the upper end of the upper sliding rod, and a transmission rod is connected to the bottom of the motor. By setting the hole-making component, the device can stably make holes in the road surface within the support and fixing component, forming a cavity with the same top and bottom.

[0011] Preferably, the transmission rod is connected to a bottom fixing cover by a second fixing bolt, and two sets of cutting blades are connected to the bottom of the bottom fixing cover to provide a basis for stable cutting of the hole-making assembly.

[0012] Preferably, the transmission rod and the bottom fixing cover are provided with fixing grooves that cooperate with the second fixing bolt, and the bottom fixing cover is provided with a sleeve groove that cooperates with the transmission rod, providing a basis for the realization of the function of the hole-making component.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting up a support and fixing component, the device can be easily carried with a portable handle, while providing stable conditions for the use of the hole-making component. By setting up the hole-making component, the device can stably make holes in the road surface within the support and fixing component, forming a cavity with the same top and bottom. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the portable instrument for testing the compaction degree of highway subgrade according to this utility model, unfolded on the left side.

[0015] Figure 2This is a schematic diagram of the overall structure of the left inclined surface of the portable instrument for testing the compaction degree of highway subgrade according to this utility model;

[0016] Figure 3 This is a top view of the support and fixing components in the portable instrument for testing the compaction degree of highway subgrade according to this utility model.

[0017] Figure 4 This is a bottom view of the support and fixing components in the portable instrument for testing the compaction degree of highway subgrade according to this utility model.

[0018] Figure 5 This is a schematic diagram of the hole-taking component in the portable instrument for detecting the compaction degree of highway subgrade according to this utility model.

[0019] In the diagram: 1. Support and fixing assembly; 11. Support and fixing cylinder; 12. Transparent observation plate; 13. Upper protective cover; 14. Side fixing plates; 15. Bottom locking block; 16. First fixing bolt; 2. Hole-cutting assembly; 21. Upper sliding rod; 22. Motor; 23. Transmission rod; 24. Second fixing bolt; 25. Bottom fixing cover; 26. Cutting blade; 3. Portable handle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 and Figure 2 A portable instrument for testing the compaction degree of highway subgrade includes: a hole-drilling component 2 that is slidably connected inside the support and fixing component 1 for drilling holes, and two sets of portable handles 3 connected to the front and rear of the support and fixing component 1.

[0022] Implementation 1: Please refer to Figures 1 to 5The inner wall of the supporting and fixing cylinder 11 is provided with a sliding groove that cooperates with the hole-making component 2. The two side fixing plates 14 are provided with grooves that cooperate with the first fixing bolts 16. Two sets of portable handles 3 are located on the front and rear sides of the two sets of side fixing plates 14, providing a basis for the stable use of the hole-making component 2. The hole-making component 2 includes an upper sliding rod 21, a motor 22 is fixedly connected to the bottom of the upper sliding rod 21, a handle is connected to the upper end of the upper sliding rod 21, and a transmission rod 23 is connected to the bottom of the motor 22. By setting the hole-making component 2, the device can stably make holes in the road surface within the supporting and fixing component 1, forming a cavity with the same top and bottom. The transmission rod 23 is connected to the bottom fixing cover 25 through the second fixing bolt 24. Two sets of cutting blades 26 are connected to the bottom of the bottom fixing cover 25, providing a basis for the stable cutting of the hole-making component 2. The transmission rod 23 and the bottom fixing cover 25 are provided with fixing grooves that cooperate with the second fixing bolts 24, and the bottom fixing cover 25 is provided with a sleeve groove that cooperates with the transmission rod 23, providing a basis for the realization of the function of the hole-making component 2.

[0023] Implementation 2: Please refer to Figures 1 to 4 To facilitate portability, the support and fixing assembly 1 includes a support and fixing cylinder 11. A transparent observation plate 12 is provided at the front end of the support and fixing cylinder 11. An upper protective cover 13 is threadedly connected to the upper end of the support and fixing cylinder 11. Two sets of side fixing plates 14 are connected to the left and right sides of the bottom of the support and fixing cylinder 11. Two sets of bottom locking blocks 15 are connected to the two sides of the bottom inner wall of the support and fixing cylinder 11. The side fixing plates 14 are fixed by a first fixing bolt 16. By providing the support and fixing assembly 1, the device can be easily carried with the portable handle 3, while providing stable conditions for the use of the hole-making assembly 2. The upper end of the support and fixing cylinder 11 is provided with a connecting thread, and the upper protective cover 13 has a threaded groove that matches the support and fixing cylinder 11. The support and fixing cylinder 11 also has a groove that matches the transparent observation plate 12, providing a basis for the convenient portability of the support and fixing assembly 1.

[0024] Working principle: When needed, select the testing position, open the upper protective cover 13, fix the supporting and fixing cylinder 11 in the designated position with the first fixing bolt 16, connect the power supply, fix the upper sliding rod 21 inside the supporting and fixing cylinder 11, start the motor 22 to drive the cutting blade 26 to open the hole through the transmission rod 23 and the bottom fixing cover 25. After completion, the sand filling method can be used for testing. After completion, cover the upper protective cover 13, flip the supporting and fixing assembly 1 over and carry it through the two sets of portable handles 3.

[0025] The standard parts used in this embodiment can be purchased directly from the market, while the non-standard structural parts described in the specification and drawings can be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable instrument for testing the compaction degree of highway subgrade, characterized in that, include: A hole-making component (2) for drilling is slidably connected inside the support and fixing component (1), and the support and fixing component (1) is connected to two sets of portable handles (3) at the front and rear.

2. The portable instrument for testing the compaction degree of highway subgrade according to claim 1, characterized in that: The support and fixing assembly (1) includes a support and fixing cylinder (11), a transparent observation plate (12) is provided at the front end of the support and fixing cylinder (11), an upper protective cover (13) is threaded to the upper end of the support and fixing cylinder (11), two sets of side fixing plates (14) are connected to the bottom left and right of the support and fixing cylinder (11), two sets of bottom locking blocks (15) are connected to the inner walls of the bottom of the support and fixing cylinder (11), and the side fixing plates (14) are fixed by a first fixing bolt (16).

3. The portable instrument for testing the compaction degree of highway subgrade according to claim 2, characterized in that: The upper end of the supporting and fixing cylinder (11) is provided with a connecting thread, the upper protective cover (13) is provided with a threaded groove that matches the supporting and fixing cylinder (11), and the supporting and fixing cylinder (11) is provided with a groove that matches the transparent observation plate (12).

4. The portable instrument for testing the compaction degree of highway subgrade according to claim 2, characterized in that: The inner wall of the supporting and fixing cylinder (11) is provided with a sliding groove that cooperates with the hole-making component (2), and the two side fixing plates (14) are provided with grooves that cooperate with the first fixing bolt (16). The two sets of portable handles (3) are located on the front and rear sides of the two sets of side fixing plates (14).

5. The portable instrument for testing the compaction degree of highway subgrade according to claim 1, characterized in that: The hole-making assembly (2) includes an upper sliding rod (21), a motor (22) is fixedly connected to the bottom of the upper sliding rod (21), a handle is connected to the upper end of the upper sliding rod (21), and a transmission rod (23) is connected to the bottom of the motor (22).

6. The portable instrument for testing the compaction degree of highway subgrade according to claim 5, characterized in that: The transmission rod (23) is connected to a bottom fixing cover (25) by a second fixing bolt (24), and two sets of cutting blades (26) are connected to the bottom of the bottom fixing cover (25).

7. The portable instrument for testing the compaction degree of highway subgrade according to claim 6, characterized in that: The transmission rod (23) and the bottom fixing cover (25) are provided with fixing grooves that cooperate with the second fixing bolt (24), and the bottom fixing cover (25) is provided with sleeve grooves that cooperate with the transmission rod (23).

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