Novel highway compactness detection device

Abstract

The utility model discloses a novel highway compactness detection device, and relates to the technical field of road engineering detection. Comprising a base plate, a soil taking assembly which is arranged above the base plate and used for carrying out soil taking operation on a roadbed needing to be detected, and a compaction assembly which is arranged on the inner side of a soil taking cylinder and used for collecting and fixing soil in the soil taking cylinder. Under the matching action of the vertical rod and the pressing plate, when a soil sample is taken, the soil can be directly sealed in the soil sampling cylinder, and a worker does not need to dig a pit in the surface of the soil and take out the soil sample from the soil bit by bit, so that the labor force of the worker is reduced, the operation steps are optimized, and the working efficiency is improved. The soil sampling barrel can be quickly inserted into the soil through the cooperation of the soil sampling barrel and the cutting ring, the cutting ring and the soil sampling barrel are in threaded connection and are convenient to disassemble and replace, the soil sampling barrel can be conveniently taken out from the soil after the soil sampling operation is finished through the arrangement of a hook and a hanging ring, and the working efficiency of taking the soil sample is improved.

Description

Technical Field

[0001] This utility model relates to the field of road engineering testing technology, specifically a novel highway compaction testing device. Background Technology

[0002] Compaction degree is one of the key indicators for quality inspection of subgrade and pavement construction. It characterizes the density after on-site compaction. The higher the compaction degree, the greater the density, and the better the overall performance of the material. Therefore, in subgrade and pavement construction, the rolling process has become a key procedure for construction quality control. In the construction, operation, maintenance and repair of highways, the compaction quality of subgrade and pavement is an important indicator reflecting the construction quality of road engineering. Only by fully compacting the subgrade and pavement structural layers can the strength, rigidity, and smoothness of the subgrade and pavement be guaranteed, thereby ensuring the performance and service life of the subgrade and pavement. During the compaction degree test, a sampling device is used to sample the highway base layer, and then the highway base layer sample is tested and analyzed.

[0003] In existing methods for testing the compaction of roadbeds and pavements, workers need to manually remove soil from the soil. They use a shovel to dig a circular hole in the area to be tested and then carefully excavate the soil sample bit by bit. This manual excavation is slow and it is difficult to maintain a consistent shape for the hole, which can easily lead to errors. Furthermore, some loose soil remains in the final pit after excavation, which needs to be removed, increasing the workload. Therefore, a new type of highway compaction testing device is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a novel highway compaction testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel highway compaction degree testing device, comprising: a substrate,

[0006] The soil sampling assembly, located above the base plate, is used for soil sampling operations on the roadbed that needs to be inspected;

[0007] The compaction component, located inside the soil sampling cylinder, is used to collect and fix the soil inside the cylinder.

[0008] The compaction assembly includes a pressure plate located in an annular groove inside the soil sampling cylinder. A cylinder is provided on one side of the pressure plate, and a fixed shaft is provided on the inner side of the cylinder. A clamping block is provided at the top of the pressure plate, and a vertical rod is provided on the inner side of the clamping block through the fixed shaft. The vertical rod extends to the outer side of the soil sampling cylinder, and a fixing ring is provided on its outer wall.

[0009] As a specific solution in this application, the inner wall of the soil sampling cylinder is provided with a stop ring, which is located below the annular groove, and a ring cutter is provided at the bottom of the soil sampling cylinder.

[0010] As a specific solution in the technical solution of this application, the soil sampling assembly includes a soil sampling cylinder located above the base plate. Several fixed cylinders are provided at the top of the soil sampling cylinder. Fixed rods are provided on the inner wall of the fixed cylinders. Impact plates are provided at the top of the fixed rods, and hanging rings are provided on the outer wall of the fixed cylinders.

[0011] As a specific solution in this application, the base plate is provided with support columns at the four corners of the top of the base plate, a top plate is provided at the top of the support columns, a cylinder is provided at the middle of the top of the top plate, an impact plate is connected to the piston end of the cylinder, a limit block is provided on the outer wall of the impact plate, and the limit block is located on the vertical groove on the support column.

[0012] As a specific solution in this application, the impact plate is provided with hooks on both sides, the hooks are adapted to the hanging rings, and several arc-shaped legs are provided at the top center of the base plate. A limit ring is provided at the other end of the arc-shaped legs, and a soil sampling cylinder is provided on the inner wall of the limit ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This new highway compaction testing device, with the cooperation of the vertical rod and the pressure plate, can directly seal the soil in the soil sampling tube when taking soil samples, eliminating the need for workers to dig pits on the soil surface and remove the soil samples bit by bit. This reduces the labor force of workers, optimizes the operation process, and allows the soil sampling tube to be quickly inserted into the soil through the cooperation of the soil sampling tube and the ring cutter. The ring cutter and the soil sampling tube are connected by threads, which is convenient for disassembly and replacement. The setting of hooks and hanging rings makes it easy to remove the soil sampling tube from the soil after the soil sampling operation is completed, which improves the efficiency of soil sample taking. Attached Figure Description

[0015] Figure 1 This is an isometric view of the present invention;

[0016] Figure 2 This is a schematic diagram of the equiaxed side section of the present invention;

[0017] Figure 3 This is a schematic cross-sectional view of the soil sampling cylinder of this utility model;

[0018] Figure 4 This is a lower plan view of the cross-section of the soil sampling cylinder of this utility model;

[0019] Figure 5 This is a schematic diagram of a half-section of the soil sampling cylinder of this utility model;

[0020] Figure 6For the present utility model Figure 3 Enlarged diagram of point A in the middle.

[0021] In the diagram: 1. Base plate; 101. Cylinder; 102. Limiting block; 103. Impact plate; 104. Hook; 105. Support column; 106. Top plate; 107. Arc leg; 108. Limiting ring; 2. Soil sampling assembly; 201. Impact plate; 202. Fixing cylinder; 203. Fixing rod; 204. Soil sampling cylinder; 205. Hanging ring; 3. Compaction assembly; 301. Vertical rod; 302. Fixing ring; 303. Clamping block; 304. Fixing shaft; 305. Cylinder; 306. Ring cutter; 307. Abutment ring; 308. Annular groove; 309. Pressure plate. Detailed Implementation

[0022] 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.

[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only for descriptive distinction and should not be construed as indicating or implying relative importance. All electrical components mentioned in this document are electrically connected to an external main controller and 220V AC mains power, and the main controller can be a conventionally known device such as a computer that provides control.

[0024] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] like Figures 1-6As shown, this utility model provides a technical solution: a novel highway compaction testing device, including a base plate 1, which supports the entire device. Braking casters can be installed at the four corners of the bottom of the base plate 1 to facilitate the movement of the device body. A through circular hole is provided on the base plate 1, which is adapted to the soil sampling cylinder 204 and is used for limiting and guiding it. A soil sampling component 2 is set above the base plate 1 for soil sampling operations on the roadbed that needs to be tested. A compaction component 3 is set inside the soil sampling cylinder 204 for collecting and fixing the soil inside the soil sampling cylinder 204.

[0026] like Figure 1-6 As shown in the embodiment of this application, support columns 105 are provided at the four corners of the top of the substrate 1, a top plate 106 is provided at the top of the support columns 105, a cylinder 101 is provided at the center of the top of the top of the top plate 106, an impact plate 103 is connected to the piston end of the cylinder 101, and a limit block 102 is provided on the outer wall of the impact plate 103. The limit block 102 is located on the vertical groove on the support column 105. Specifically, the support column 105 is used to provide support for the top plate 106, and the top plate 106 is used to provide an installation environment for the cylinder 101. During the operation of the cylinder 101... The impact plate 103 is driven to move linearly up and down. The limiting block 102 on the outer wall of the impact plate 103 moves on the vertical groove on the support column 105 to limit the impact plate 103 and guide the impact plate 103 to move horizontally along the support column 105. During the horizontal movement of the impact plate 103, it can apply downward pressure to the impact plate 201, thereby causing the soil sampling cylinder 204 to enter the soil for soil sampling. It should be noted that the cylinders 101 in this application are all connected to an external air pump and controlled by a control system.

[0027] like Figure 1-6 As shown in the embodiment of this application, hooks 104 are provided on both sides of the impact plate 103. The hooks 104 are adapted to the hanging rings 205. Several arc-shaped legs 107 are provided at the middle of the top of the base plate 1. A limiting ring 108 is provided at the other end of the arc-shaped legs 107. A soil sampling cylinder 204 is provided on the inner wall of the limiting ring 108. Specifically, the hooks 104 on both sides of the impact plate 103 are adapted to the hanging rings 205. After the soil sampling operation is completed, the hooks 104 hook the hanging rings 205 on both sides of the soil sampling cylinder 204. The impact plate 103 can be moved upward to remove the soil sampling cylinder 204 from the soil. The arc-shaped legs 107 at the top of the base plate 1 cooperate with the limiting ring 108 to assist in limiting and guiding the soil sampling cylinder 204, so as to prevent the soil sampling cylinder 204 from deviating in angle during the soil sampling process.

[0028] like Figure 1-6As shown in the embodiment of this application, the soil sampling assembly 2 includes a soil sampling cylinder 204, which is located above the base plate 1. Several fixed cylinders 202 are provided at the top of the soil sampling cylinder 204. A fixed rod 203 is provided on the inner wall of each fixed cylinder 202, and an impact plate 201 is provided at the top of each fixed rod 203. A hanging ring 205 is provided on the outer wall of the fixed cylinder 202. Specifically, the soil sampling cylinder 204 is used for soil sampling operations of the device. The fixed cylinders 202 at the top of the soil sampling cylinder 204 are used to install the fixed rods 203. The impact plate 201 is fixedly provided on the outer wall of the top of the fixed rod 203. The impact plate 201 is used to receive pressure from the impact plate 103. The height of the fixed cylinder 202 is equal to the height of the fixing ring 302, which can accommodate the fixed rod 203 and ensure its stability. After the impact plate 201 is subjected to the pressure of the impact plate 103, the fixing rod 203 will not detach from the fixing cylinder 202. The fixing rod 203 and the fixing cylinder 202 are movably connected. The outer wall of the fixing rod 203 is equal to the inner wall of the fixing cylinder 202. When the soil sampling cylinder 204 is used for soil sampling, the soil sampling cylinder 204 is placed on the inner wall of the limiting ring 108 and the fixing rod 203 is installed in the fixing cylinder 202. Then, the cylinder 101 is started. The cylinder 101 drives the impact plate 103 to move up and down reciprocally. During the movement, the impact plate 103 will impact the impact plate 201. When the impact plate 201 impacts the impact plate 103, the impact plate 201 will drive the soil sampling cylinder 204 to move down, thereby entering the soil for soil sampling.

[0029] like Figure 1-6As shown in the embodiment of this application, the compaction component 3 includes a pressure plate 309, which is located in the annular groove 308 inside the soil sampling cylinder 204. A cylinder 305 is provided on one side of the pressure plate 309, and a fixed shaft 304 is provided inside the cylinder 305. A clamping block 303 is provided at the top of the pressure plate 309, and a vertical rod 301 is provided inside the clamping block 303 through the fixed shaft 304. The vertical rod 301 extends to the outside of the soil sampling cylinder 204, and a fixing ring 302 is provided on its outer wall. An abutment ring 307 is provided on the inner wall of the soil sampling cylinder 204, which is located below the annular groove 308. A ring cutter 306 is provided at the bottom of the soil sampling cylinder 204. Specifically, a ring cutter 306 is provided at the bottom of the soil sampling cylinder 204, and the ring cutter 306 is threadedly connected to the soil sampling cylinder 204. The inner wall of the soil sampling cylinder 204 is provided with a threaded groove that matches the thread of the outer wall of the ring cutter 306. When the soil sampling cylinder 204 is performing soil sampling operations, the ring cutter 306 preferentially contacts the soil. The ring cutter 306 facilitates the soil sampling cylinder 204 to be inserted into the soil more quickly. As the soil sampling cylinder 204 penetrates deeper into the soil, the soil will move from the bottom of the soil sampling cylinder 204 to its inner side. As the soil enters the soil sampling cylinder 204, the soil will exert an upward pushing force on the pressure plate 309, thereby lifting one end of the pressure plate 309. During the lifting process of the pressure plate 309, it will drive the vertical rod 301 to swing around the fixed axis 304. However, since the top of the vertical rod 301 is limited by the groove at the top of the soil sampling cylinder 204, the vertical rod 301 swings around the fixed axis 304. When the 04 swings, the vertical rod 301 drives the fixed ring 302 to move upward, thus forming an opening between the pressure plates 309. Soil will enter the soil sampling cylinder 204 through the opening. When the pressure plate 309 is lifted, it will rotate around the fixed shaft 304 via the cylinder 305, thereby driving the vertical rod 301 to rise. The annular groove 308 is used to accommodate the cylinder 305 and provide an environment for the rotation of the pressure plate 309 to avoid affecting its movement. The abutment ring 307 is set below the annular groove 308 to support the pressure plate 309. The lower surface of the abutment ring 307 is provided with rounded corners to facilitate soil entering the soil sampling cylinder 204 along the abutment ring 307. The abutment ring 307 can also prevent soil from entering the soil sampling cylinder 204 during the process. Soil enters the annular groove 308 between the retaining ring 307 and the pressure plate 309, thus preventing the soil from affecting the rotation of the cylinder 305. The pressure plate 309 is in contact with the inner wall of the annular groove 308, so during the rotation of the pressure plate 309, the soil above it will not fall into the area below it. After the soil removal operation is completed, the fixing rod 203 is removed. At this time, only the fixing ring 302 remains at the top of the soil removal cylinder 204, and the fixing cylinder 202 and the fixing ring 302 are at the same height. The cylinder 101 is activated again, and the cylinder 101 drives the impact plate 103 to impact the fixing ring 302. The fixing ring 302 is fixedly connected to the outer wall of the top of the vertical rod 301. Simultaneously, the impact on the fixing ring 302 will drive the vertical rod 301 to move downwards.As the vertical rod 301 moves downward, it will cause the pressure plate 309 to close, thereby sealing the soil in the soil sampling cylinder 204 inside the cylinder. Then, by connecting the hook 104 to the hanging ring 205 and removing the soil sampling cylinder 204, the soil can be simultaneously carried out.

[0030] The working principle of this utility model is as follows:

[0031] When conducting highway compaction testing, samples need to be taken from the compacted soil for testing. First, the base plate 1 is placed on the compacted soil. Then, the soil sampling cylinder 204 is removed and placed inside the limiting ring 108. At this time, the distance between the impact plate 103 and the limiting ring 108 is sufficient to accommodate the installation of the soil sampling cylinder 204. After the soil sampling cylinder 204 is installed, the fixing rod 203 is installed inside the fixing cylinder 202 at the top of the soil sampling cylinder 204. Then, the cylinder 101 is activated, which drives the impact plate 103 to move horizontally. During the horizontal movement of the impact plate 103, the soil sampling cylinder 204 will enter the soil along the ring cutter 306 at the bottom. The impact plate 103 continuously impacts the impact plate 201. Until the lower surface of the hanging ring 205 contacts the upper surface of the limiting ring 108, the cooperation between the hanging ring 205 and the limiting ring 108 can limit the downward movement distance of the soil sampling cylinder 204. It should be noted that before installing the soil sampling cylinder 204, the ring cutter 306 should be assembled to the bottom of the soil sampling cylinder 204 in advance. After the soil sampling cylinder 204 descends to the fixed position, the cylinder 101 is stopped and the impact plate 201 is removed. During the downward movement of the soil sampling cylinder 204, the soil will push open the pressure plate 309, forming an opening between the pressure plates 309. The soil enters the soil sampling cylinder 204 from the opening. During the impact, the pressure plate 309 rotates around the fixed shaft 304 via the cylinder 305. The annular groove 308 is used to press... Plate 309 provides rotation space. During the rotation of plate 309, it will drive clamping block 303 to rotate synchronously. When clamping block 303 rotates, it will drive vertical rod 301 to swing through fixed shaft 304. Since vertical rod 301 is restricted by the groove at the top of soil sampling cylinder 204, vertical rod 301 will move upward during swing. The length of fixed rod 203 meets the space required for vertical rod 301 to move upward. After soil sampling cylinder 204 reaches the designated position, impact plate 201 is removed, and cylinder 101 is activated again. Cylinder 101 will drive impact plate 103 to impact fixed ring 302. Fixed ring 302 is fixedly connected to the outer wall at the top of vertical rod 301. Therefore, fixed ring 302 will drive vertical rod 301 to move downward. As the rod 301 moves downward, it will simultaneously drive the pressure plate 309 to rotate. When the upper surface of the fixing ring 302 and the fixing cylinder 202 are on the same plane, the pressure plate 309 will be closed again, thus fixing the soil sample inside the soil sampling cylinder 204. At this time, the soil sampling operation is completed. The hook 104 is connected to the hanging ring 205, so that the soil sampling cylinder 204 can be removed from the soil using the impact plate 103. After the soil sampling cylinder 204 is removed, it is inverted, and the soil sample will flow out from the outlet at the top of the soil sampling cylinder 204. Then, the wet density of the soil sample is measured, and the moisture content of the soil sample is determined by the drying method. The dry density is calculated based on the wet density and moisture content, and then the compaction degree of the soil sample is calculated.

[0032] In summary, this utility model discloses a novel highway compaction testing device, comprising a base plate 1, a soil sampling component 2 disposed above the base plate 1 for soil sampling operations on the roadbed to be tested, and a compaction component 3 disposed inside the soil sampling cylinder 204 for collecting and fixing the soil inside the soil sampling cylinder 204. With the cooperation of the vertical rod 301 and the pressure plate 309, this utility model can directly seal the soil inside the soil sampling cylinder 204 when taking soil samples, eliminating the need for workers to dig pits on the soil surface and painstakingly extract the soil samples, thus reducing labor and optimizing the operation process. Furthermore, the soil sampling cylinder 204, in conjunction with the ring cutter 306, can be quickly inserted into the soil. The ring cutter 306 and the soil sampling cylinder 204 are threadedly connected, facilitating disassembly and replacement. The hook 104 and the hanging ring 205 facilitate the removal of the soil sampling cylinder 204 from the soil after the soil sampling operation, improving the efficiency of soil sample collection.

[0033] 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 embodiments and their equivalents.

Claims

1. A novel highway compaction degree testing device, comprising: The substrate is characterized by: The soil sampling assembly, located above the base plate, is used for soil sampling operations on the roadbed that needs to be inspected; The compaction component, located inside the soil sampling cylinder, is used to collect and fix the soil inside the cylinder. The compaction assembly includes a pressure plate located in an annular groove inside the soil sampling cylinder. A cylinder is provided on one side of the pressure plate, and a fixed shaft is provided on the inner side of the cylinder. A clamping block is provided at the top of the pressure plate, and a vertical rod is provided on the inner side of the clamping block through the fixed shaft. The vertical rod extends to the outer side of the soil sampling cylinder, and a fixing ring is provided on its outer wall.

2. The novel highway compaction degree testing device according to claim 1, characterized in that: The inner wall of the soil sampling cylinder is provided with a stop ring, which is located below the annular groove, and a ring cutter is provided at the bottom of the soil sampling cylinder.

3. The novel highway compaction degree testing device according to claim 1, characterized in that: The soil sampling assembly includes a soil sampling cylinder located above the base plate. Several fixed cylinders are provided at the top of the soil sampling cylinder. Fixed rods are provided on the inner wall of the fixed cylinders. Impact plates are provided at the top of the fixed rods, and hanging rings are provided on the outer wall of the fixed cylinders.

4. The novel highway compaction testing device according to claim 3, characterized in that: The base plate is provided with support columns at the four corners of the top end, and a top plate is provided at the top end of the support columns. A cylinder is provided at the middle of the top end of the top plate. An impact plate is connected to the piston end of the cylinder. A limit block is provided on the outer wall of the impact plate. The limit block is located on the vertical groove on the support column.

5. A novel highway compaction testing device according to claim 4, characterized in that: The impact plate is provided with hooks on both sides, which are adapted to the hanging rings. Several arc-shaped legs are provided at the top center of the base plate, and a limit ring is provided at the other end of the arc-shaped legs. A soil sampling cylinder is provided on the inner wall of the limit ring.

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