Base layer compactness detection device

Abstract

The base layer compactness detection device comprises a base, a cover body, a driving hammer and a pressure rod, a plurality of telescopic rods are arranged on the periphery of the base, one end of each telescopic rod is hinged to the base, and storage grooves used for containing the telescopic rods are formed in the base and the cover body; the cover body is installed on the upper portion of the base, a guide rod is arranged between the cover body and the base, and the driving hammer is installed on the guide rod in a sliding mode. The pressure rod penetrates through the base, the upper end of the pressure rod is located below the driving hammer, and the lower end of the pressure rod is hemispherical. The base can be installed on the base layer through the telescopic rod, the levelness of the base can be adjusted by adjusting the length of the telescopic rod, the driving hammer can fall down in the vertical direction, the impact force is prevented from being influenced by different angles, the driving hammer can be clamped through the clamping block after being pulled up, the falling height of the driving hammer is uniform, and the safety of the driving hammer is improved. The influence of uncontrollable variables on a detection result is reduced, and the detection accuracy is improved.

Description

Technical Field

[0001] This application relates to the technical field of pavement detection, and particularly relates to a device for detecting the compaction degree of a base course. Background Art

[0002] The compaction degree, also known as the ramming degree, is one of the key indicators for detecting the construction quality of road base courses. The compaction degree refers to the ratio of the dry density actually achieved at the construction site to the maximum dry density obtained from the standard compaction test in the laboratory; for asphalt pavements, it refers to the ratio of the density actually achieved on-site to the standard density in the laboratory. Therefore, only by fully compacting the roadbed and pavement structural layers can the strength, stiffness, stability, and flatness of the roadbed and pavement be ensured, thereby extending the service life of the roadbed and pavement. For example, Chinese Patent with application number 202220399136.4 discloses a device for detecting the compaction degree of a highway engineering roadbed, including a detection vehicle. A mounting frame is fixedly connected to the top surface of the detection vehicle. An electromagnet component is arranged on the top surface of the mounting frame. Two arc plates are fixedly connected to the bottom surface of the mounting frame. An impact ball is slidably connected inside the two arc plates. A ground nail is arranged below the impact ball. In actual use, the road base course is not completely horizontal, so that the impact ball does not necessarily move in the vertical direction when it falls, which easily affects the impact effect. Therefore, a device for detecting the compaction degree of a base course is needed, which is provided with telescopic support legs to facilitate adjusting the level of the device and meet the on-site use requirements. Summary of the Utility Model

[0003] To solve the above problems, this application proposes a device for detecting the compaction degree of a base course, which is provided with telescopic support legs to facilitate adjusting the level of the device and meet the on-site use requirements.

[0004] This application is achieved through the following technical solutions:

[0005] This application proposes a device for detecting the compaction degree of a base course, including: a base, a cover body, a hammer, and a pressure rod. A plurality of telescopic rods are arranged on the outer periphery of the base. One end of each telescopic rod is hinged to the base. Storage grooves for accommodating the telescopic rods are provided on the base and the cover body. The cover body is installed on the upper part of the base. A guide rod is arranged between the cover body and the base. The hammer is slidably installed on the guide rod. The pressure rod penetrates the base, and the upper end of the pressure rod is located below the hammer. The lower end of the pressure rod is hemispherical.

[0006] Further, a connecting block is provided on the base. After the telescopic rods are extended, the telescopic rods are connected to the connecting block by screws.

[0007] Further, the telescopic rod includes a main body and a telescopic part. The telescopic part is slidably installed in the main body, and the main body is connected to the telescopic part by screws.

[0008] Further, a pull rod is provided on the upper part of the hammer. The lower part of the pull rod is connected to the hammer. The upper part of the pull rod passes through the cover body and extends upward, and a notch is provided on one side of the lower part of the pull rod.

[0009] Further, a clamping block is provided on the upper part of the cover body. One side of the clamping block is hinged to the cover body. When the pull rod is pulled up, the middle part of the clamping block is stuck in the notch of the pull rod.

[0010] Further, a bubble level is provided on the top of the cover body.

[0011] The beneficial effects of this application: The base can be installed on the base layer through the telescopic rod, and the level of the base can be adjusted by adjusting the length of the telescopic rod, so that the hammer can fall vertically, avoiding the influence of different angles on the impact force. And after the hammer is pulled up, it can be stuck by the clamping block, so that the falling height of the hammer is unified, reducing the influence of uncontrollable variables on the test results and improving the accuracy of the test. Description of the Drawings

[0012] Figure 1 Structural schematic of the utility model Figure 2

[0013] Figure 2 Schematic of the telescopic rod in the retracted state of the utility model Figure 2

[0014] Figure 3 Schematic of the internal structure of the cover body of the utility model Figure 2

[0015] In the figure: 1 - base, 2 - cover body, 3 - hammer, 4 - pressure rod, 5 - telescopic rod, 6 - storage groove, 7 - guide rod, 8 - connecting block, 9 - main body, 10 - telescopic part, 11 - pull rod, 12 - clamping block, 13 - bubble level. Detailed Implementation Modes

[0016] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the drawings in the embodiments of this application. Among them, the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0017] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of this application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will change accordingly.

[0018] In addition, the descriptions involving "first", "second", etc. in this application are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the said features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by this utility model.

[0019] As Figures 1 to 3 shown, an embodiment of the present utility model provides a device for detecting the compaction degree of a base layer, including: a base 1, a cover body 2, a hammer 3, and a pressure rod 4. A plurality of telescopic rods 5 are provided on the outer periphery of the base 1. One end of the telescopic rod 5 is hinged to the base 1. The base 1 and the cover body 2 are provided with a storage groove 6 for accommodating the telescopic rod 5; the cover body 2 is installed on the upper part of the base 1. A guide rod 7 is provided between the cover body 2 and the base 1. The hammer 3 is slidably installed on the guide rod 7; the pressure rod 4 penetrates the base 1, and the upper end of the pressure rod 4 is located below the hammer 3, and the lower end of the pressure rod 4 is hemispherical.

[0020] During detection, after the staff takes out the device from the protection box, pulls out the telescopic rod 5 from the storage groove 6, connects the telescopic rod 5 to the connecting block 8 by screws after unfolding the telescopic rod 5 to keep the telescopic rod 5 in the unfolded state, then places the device at the position to be detected, and then adjusts the length of the telescopic rod 5 so that when the pressure rod 4 presses on the base layer, there is a distance of 5 cm to 10 cm reserved. Then, according to the display of the bubble level 13, the device is adjusted to be level by adjusting the length of the telescopic rod 5. Before detection, the hammer 3 is pulled up by the pull rod 11. After the pull rod 11 is pulled up, it is stuck on the notch of the pull rod 11 by the block 12 to keep the hammer 3 in a suspended state. During detection, the block 12 is quickly pushed away to make the pull rod 11 and the hammer 3 fall freely. After the hammer 3 hits the upper part of the pressure rod 4, the pressure rod 4 is knocked into the base layer. The staff can judge the compaction degree of the base layer according to the depth of the pressure rod 4 inserted into the base layer. The telescopic rod 5 can be telescoped according to the road surface conditions to meet the detection requirements of different road surfaces. Moreover, the base 1 adopts a solid structure, which can reduce the center of gravity of the whole device and ensure the stability of the device during impact in work, avoiding situations such as the device jumping or tilting, which may affect the detection. The storage groove 6 can store the telescopic rod 5, facilitating the transportation of the equipment.

[0021] In a specific embodiment, as Figure 2 shown, a connecting block 8 is provided on the base 1. After the telescopic rod 5 is extended, the telescopic rod 5 is connected to the connecting block 8 by screws. The telescopic rod 5 is kept in the extended state through the connecting block 8, thereby ensuring the stability of the device.

[0022] In a specific embodiment, as Figure 1 shown, the telescopic rod 5 includes a main body 9 and a telescopic part 10. The telescopic part 10 is slidably installed in the main body 9, and the main body 9 is connected to the telescopic part 10 by screws. By the telescopic part 10 telescoping in the main body 9, the total length of the telescopic rod 5 is adjusted. There are 3 to 4 telescopic rods 5. Through the cooperation of multiple telescopic rods 5, both the overall height of the base 1 and its level can be adjusted, thereby reducing the detection error caused by inclination.

[0023] Specifically, as Figure 3 shown, a pull rod 11 is provided on the upper part of the hammer 3. The lower part of the pull rod 11 is connected to the hammer 3. The upper part of the pull rod 11 passes through the cover 2 and extends upward. And a notch is provided on one side of the lower part of the pull rod 11. The staff can pull the pull rod 11 to lift the hammer 3, which is convenient for the hammer 3 to strike the upper part of the pressure rod 4.

[0024] Specifically, a clamping block 12 is provided on the upper part of the cover 2. One side of the clamping block 12 is hinged to the cover 2. When the pull rod 11 is lifted, the middle part of the clamping block 12 is stuck in the notch of the pull rod 11. By the clamping block 12 clamping the pull rod 11, the falling height of the hammer 3 is unified, reducing the experimental variables.

[0025] Specifically, a bubble level 13 is provided on the top of the cover 2, which is convenient for the staff to adjust the level of the entire device.

[0026] Of course, the present application may also have many other implementation manners. Based on this implementation manner, other implementation manners obtained by ordinary technical personnel in the art without any creative labor belong to the scope protected by the present application.

Claims

1. A base compaction detection device, characterized in that: include: The invention comprises a base (1), a cover (2), a hammer (3), and a pressure rod (4). The base (1) is provided with a plurality of telescopic rods (5) on its outer periphery, one end of each telescopic rod (5) is hinged to the base (1), and a storage groove (6) for accommodating the telescopic rod (5) is provided on the base (1) and the cover (2); the cover (2) is installed on the upper part of the base (1), a guide rod (7) is provided between the cover (2) and the base (1), and the hammer (3) is slidably installed on the guide rod (7); the pressure rod (4) passes through the base (1), and the upper end of the pressure rod (4) is located below the hammer (3), and the lower end of the pressure rod (4) is hemispherical.

2. A base layer compaction detection device according to claim 1, characterized in that: The base (1) is provided with a connecting block (8); after the telescopic rod (5) is unfolded, the telescopic rod (5) is connected to the connecting block (8) via screws.

3. A base layer compaction detection device according to claim 1, characterized in that: The telescopic rod (5) comprises a main body (9) and a telescopic part (10); the telescopic part (10) is slidably mounted in the main body (9), and the main body (9) is screwed to connect the telescopic part (10).

4. A base layer compaction detection device according to claim 1, characterized in that: A pull rod (11) is provided on the upper part of the hammer (3), and the lower part of the pull rod (11) is connected to the hammer (3). The upper part of the pull rod (11) passes through the cover body (2) and extends upward, and a notch is provided on one side of the lower part of the pull rod (11).

5. A base layer compaction detection device according to claim 4, characterized in that: A clamping block (12) is provided on the upper part of the cover body (2), one side of the clamping block (12) is hinged to the cover body (2), and when the pull rod (11) is pulled up, the middle part of the clamping block (12) is clamped in the notch of the pull rod (11).

6. A base layer compaction detection device according to claim 1, characterized in that: A bubble level (13) is arranged on the top of the cover body (2).

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