Road pavement strength detection device

Abstract

The utility model relates to the technical field of road surface strength detection, in particular to a road surface strength detection device which comprises a movable frame, a portal frame is mounted at the top of the movable frame, a square frame is slidably connected to the horizontal part of the portal frame, and an air cylinder is mounted on the square frame. A piston rod of the air cylinder movably penetrates through the bottom of the square frame, the end of the piston rod is connected with an n-shaped connecting piece, and the lower portion of the n-shaped connecting piece is rotationally provided with a strength detection assembly used for detecting the strength of the road surface. And the strength detection assembly comprises a rotating shaft rotationally arranged at the lower part of the n-shaped connecting piece, a Y-shaped connecting piece mounted on the rotating shaft and a detection conical head mounted at the end part of the Y-shaped connecting piece. When the piston rod of the air cylinder downwards extends and moves, the piston rod of the air cylinder drives the n-shaped connecting piece and the strength detection assembly to downwards move, and the conical head of the detection conical head can accurately enter the depth of soil or a paving material under the driving of the air cylinder, so that the depth of the conical head entering the soil or the paving material is accurately controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to road pavement strength detection technical field, concretely relates to a road pavement strength detection device. BACKGROUND

[0002] With the continuous increase of traffic flow, the requirement of road pavement strength is also higher and higher. The traditional road pavement strength detection method mainly inserts the cone head of the portable dynamic cone used for detecting pavement strength into soil or paving material, estimates the hardness or density of the material by measuring the force required for the cone head to enter the soil or paving material, so as to judge the strength of the road.

[0003] But because the cone head of the traditional portable dynamic cone is inserted into the soil or paving material by manual operation when in use, the required depth of insertion into the soil or paving material cannot be controlled, and thus the accurate detection data of the road strength cannot be obtained. In addition, using a single cone head cannot accurately evaluate the hardness or density of the material, and thus accurate detection data cannot be obtained.

[0004] Therefore, it is necessary to design a road pavement strength detection device capable of controlling the depth of the cone head into the soil or paving material. SUMMARY

[0005] A road pavement strength detection device comprises a moving frame, a gantry frame installed on the top of the moving frame, a mouth-shaped frame slidingly connected to the horizontal part of the gantry frame, a cylinder installed on the mouth-shaped frame, an n-shaped connecting piece movably penetrating through the bottom of the mouth-shaped frame and connected to the end of the piston rod of the cylinder, a strength detection assembly rotatably arranged at the lower part of the n-shaped connecting piece for detecting the strength of the road pavement, the strength detection assembly comprising a rotating shaft rotatably arranged at the lower part of the n-shaped connecting piece, a Y-shaped connecting piece installed on the rotating shaft, and a detection cone head installed at the end of the Y-shaped connecting piece.

[0006] Optionally, the two ends of the rotating shaft are threadedly connected with abutting pieces for abutting and cooperating with the outer wall of the n-shaped connecting piece to fix the rotating shaft.

[0007] Optionally, the front end of the moving frame is symmetrically rotatably provided with swing frames, and the ends of the swing frames away from the moving frame are provided with cleaning brushes, and the two cleaning brushes are in an eight-shaped structure.

[0008] Optionally, the rear end of the moving frame is provided with a fixing frame, a threaded rod is threadedly connected to the fixing frame, and a support piece is arranged at the bottom end of the threaded rod.

[0009] Optionally, the inside of the support piece is hollow, a buffer block is slidingly arranged in the hollow inner cavity of the support piece, and an elastic piece is arranged between the top end of the buffer block and the top of the hollow inner cavity of the support piece.

[0010] Optionally, two sets of guide rails are symmetrically arranged at the bottom of the square frame, with two guide rails in each set. The guide rails are located on both sides of the n-shaped connector, and each set of guide rails is equipped with a damping sliding baffle.

[0011] Optionally, a transparent observation panel is provided on the shield.

[0012] The beneficial effects of this utility model are: 1. When the cylinder piston rod extends downward, it drives the n-shaped connector and the strength detection component to move downward. Under the drive of the cylinder, the cone of the detection cone can accurately enter the depth of the soil or paving material, thereby accurately controlling the depth of entry into the soil or paving material; at the same time, combined with different types of cone detection heads, the hardness or density of the material can be evaluated more accurately, meeting a variety of detection needs.

[0013] 2. As the mobile frame moves forward, it automatically removes debris from the road surface using a cleaning brush, ensuring that the area to be tested is clean and unobstructed, thus improving the efficiency of pre-test preparation.

[0014] 3. The support structure with buffer blocks and elastic elements can effectively absorb vibrations, provide a stable support environment for the entire testing process, and ensure the accuracy and reliability of the test data. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a partial three-dimensional structural diagram of the present invention.

[0017] Figure 3 This is a three-dimensional structural diagram of the I-beam frame, cylinder, n-shaped connector, and strength testing component of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the strength testing component of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the fixing frame, threaded rod, support, buffer block and elastic element of this utility model.

[0020] Figure 6 This is a three-dimensional structural diagram of the frame, guide rail, shield, and observation plate of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1: Moving frame, 2: Gantry frame, 3: I-beam frame, 4: Cylinder, 5: N-shaped connector, 6: Strength testing component, 61: Rotating shaft, 62: Y-shaped connector, 63: Testing cone, 7: Swing frame, 8: Cleaning brush, 9: Fixed frame, 10: Threaded rod, 1001: Support component, 11: Buffer block, 12: Elastic component, 13: Guide rail, 14: Baffle plate, 15: Observation plate. Detailed Implementation

[0022] The embodiments of this utility model will be described below with reference to the accompanying drawings.

[0023] Example: A road surface strength testing device, such as Figures 1-4 As shown, the system includes a movable frame 1 with four casters at its bottom and a push rod at its rear for propulsion. A gantry frame 2 is mounted on top of the movable frame 1. A U-shaped frame 3 is slidably connected to the horizontal portion of the gantry frame 2. A cylinder 4 and a controller for controlling the extension and retraction of the piston rod of the cylinder 4 are mounted on the U-shaped frame 3. The piston rod of the cylinder 4 moves through the bottom of the U-shaped frame 3, and its end is connected to an n-shaped connector 5. A strength detection component 6 for testing the strength of the road surface is rotatably mounted on the lower part of the n-shaped connector 5. The strength detection component 6 includes components rotatably mounted on the n-shaped connector 5. The Y-shaped connector 62 consists of a rotating shaft 61 at the bottom of the Y-shaped connector 5, a Y-shaped connector 62 mounted on the rotating shaft 61, and a detection cone 63 mounted at the end of the Y-shaped connector 62. The detection cone 63 at the end of the Y-shaped connector 62 can be of different types. During use, the rotating shaft 61 is rotated to select the appropriate detection cone 63 according to the needs of use. To ensure that the detection cone 63 does not shift, the two ends of the rotating shaft 61 are threaded with abutment blocks. By tightening the abutment blocks, the abutment blocks are made to abut against the outer wall of the Y-shaped connector 5, thereby fixing the rotating shaft 61 and ensuring the stability of the detection cone 63 during detection.

[0024] like Figure 1 and Figure 2 As shown, a swing frame 7 is symmetrically rotated at the front end of the mobile frame 1. The hinge of the swing frame 7 and the mobile frame 1 is damped. A cleaning brush 8 is installed at the end of the swing frame 7 away from the mobile frame 1. The two cleaning brushes 8 have a figure-eight structure. When the mobile frame 1 moves forward, the cleaning brushes 8 clean the road surface.

[0025] like Figure 1 and Figure 5As shown, the rear end of the moving frame 1 is provided with a reverse J-shaped fixing frame 9, and a threaded rod 10 is threadedly connected to the fixing frame 9. The top of the threaded rod 10 is provided with a rotating handle. The rotating handle drives the threaded rod 10 to rotate to realize the lifting movement of the threaded rod 10. The bottom end of the threaded rod 10 is provided with a support 1001. The inside of the support 1001 is hollow. A buffer block 11 is slidably arranged in the hollow inner cavity of the support 1001. An elastic element 12 is arranged between the top end of the buffer block 11 and the top of the hollow inner cavity of the support 1001. In use, the buffer block 11 contacts the ground. The elastic element 12 and the buffer block 11 can effectively absorb vibration, thereby maintaining the stability of the device. The elastic element 12 is a spring or elastic rubber.

[0026] As shown in Figure 1 and Figure 6 , the bottom of the mouth-shaped frame 3 is symmetrically provided with two groups of guide rails 13. The number of guide rails 13 in each group is two. The two groups of guide rails 13 are symmetrically arranged on both sides of the center of the n-shaped connecting piece 5. A shielding plate 14 is slidably arranged on each guide rail 13. The shielding plate 14 is used to shield the debris splashed when the detection cone head 63 extends into the soil or paving material, so as to avoid damage to the workers. The shielding plate 14 is provided with a transparent observation plate 15. The observation plate 15 is arranged to facilitate the workers to observe the depth of the detection cone head 63 extending into the soil or paving material.

[0027] In use, the device is moved to the road detection point by the moving wheels at the bottom of the moving frame 1. When the moving frame 1 advances, the cleaning brush 8 at the front end thereof sweeps the debris on the road surface, thereby ensuring that the to-be-detected area is clean and unobstructed. After the device moves to the specified position, the buffer block 11 is first brought into contact with the ground by rotating the threaded rod 10, thereby providing stable support for the device. Since the elastic element 12 is arranged between the top end of the buffer block 11 and the top of the inner cavity of the support 1001, vibration can be effectively absorbed, thereby maintaining the stability of the device. At the same time, the shielding plate 14 is moved downward along the guide rail 13, so that the bottom of the shielding plate 14 contacts the road. Subsequently, the detection cone head 63 for strength detection of the road surface is directed to the road surface by rotating the rotating shaft 61. Then, the abutting piece at the end of the rotating shaft 61 is tightened, so that the abutting piece abuts and cooperates with the outer wall of the n-shaped connecting piece 5, thereby fixing the rotating shaft 61 to avoid rotating movement of the rotating shaft 61. Subsequently, the piston rod of the air cylinder 4 extends downward, thereby driving the n-shaped connecting piece 5, the Y-shaped connecting piece 62, and the detection cone head 63 mounted on the Y-shaped connecting piece 62 to move downward. The cone head of the detection cone head 63 enters the soil or paving material downward. The force required for the cone head to enter the soil or paving material is used to estimate the hardness or density of the material, thereby realizing detection of the strength of the road surface. According to the detection needs, different detection cone heads 63 on the Y-shaped connecting piece 62 can be selected to detect the strength of the road surface, so as to obtain effective and accurate detection data.

[0028] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A road pavement strength testing device, characterized in that: The device includes a movable frame (1), characterized in that a gantry frame (2) is installed on the top of the movable frame (1), a square frame (3) is slidably connected to the horizontal part of the gantry frame (2), a cylinder (4) is installed on the square frame (3), the piston rod of the cylinder (4) moves through the bottom of the square frame (3) and its end is connected to an n-shaped connector (5), and a strength detection component (6) for strength detection of road surface is rotatably provided on the lower part of the n-shaped connector (5), the strength detection component (6) includes a rotating shaft (61) rotatably provided on the lower part of the n-shaped connector (5), a Y-shaped connector (62) installed on the rotating shaft (61), and a detection cone (63) installed on the end of the Y-shaped connector (62).

2. The road pavement strength testing device according to claim 1, characterized in that: The two ends of the rotating shaft (61) are threaded with abutment members, which are used to abut against the outer wall of the n-shaped connector (5) to fix the rotating shaft (61).

3. The road pavement strength testing device according to claim 2, characterized in that: The front end of the mobile frame (1) is symmetrically equipped with a swing frame (7). A cleaning brush (8) is installed at the end of the swing frame (7) away from the mobile frame (1). The two cleaning brushes (8) are in a figure-eight shape.

4. The road surface strength testing device according to claim 3, characterized in that: The mobile frame (1) has a fixed frame (9) at its rear end. A threaded rod (10) is threadedly connected to the fixed frame (9). A support member (1001) is provided at the bottom end of the threaded rod (10).

5. A road pavement strength testing device according to claim 4, characterized in that: The support member (1001) has a hollow interior. A buffer block (11) is slidably disposed in the hollow inner cavity of the support member (1001). An elastic element (12) is disposed between the top of the buffer block (11) and the top of the hollow inner cavity of the support member (1001).

6. A road pavement strength testing device according to claim 5, characterized in that: Two sets of guide rails (13) are symmetrically arranged at the bottom of the square frame (3). The number of guide rails (13) in each set is set to two. The guide rails (13) are located on both sides of the n-shaped connector (5). Each set of guide rails (13) is equipped with a damping sliding baffle (14).

7. A road pavement strength testing device according to claim 6, characterized in that: A transparent observation plate (15) is provided on the shield (14).

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