Pavement thickness detection device

Abstract

The utility model discloses a road surface thickness detection device, which relates to the technical field of road surface detection and comprises a base, a threaded rod and a sliding rod are respectively mounted on two sides of the top of the base, a sliding plate is slidably arranged between the threaded rod and the sliding rod in a penetrating manner, and a motor is arranged at the top of the sliding plate. An output shaft of the motor penetrates through the top of the sliding plate and is fixedly connected with a concave plate, the bottom of the concave plate is fixedly connected with a sampling barrel, a limiting structure is arranged on the inner side of the sampling barrel and comprises a lead screw, and the two ends of the lead screw are connected with the bottom of the inner side of the concave plate and the top of the sampling barrel respectively. According to the road surface thickness detection device, by arranging the limiting structure of the detection device, a sample can be ensured to be always positioned in the sampling barrel when being taken out from the initial position of a road, the influence on detection caused by falling of the sample is avoided, and the road surface thickness detection device has very good practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of road surface detection, in particular to a road surface thickness detection device. Background Art

[0002] Road construction is the most important part of transportation. Since roads need to work for a long time, the quality requirements for roads are relatively high. Usually, after the road construction is completed, equipment will be used to test whether its thickness meets the use standards. Most of the existing tests are based on core drilling tests, and the measurement after core sampling is more obvious and direct.

[0003] However, during testing, the existing testing device needs to lift the sampling tube and then take out the core sample. In the process of taking out the core sample from the initial position of the road, there is a problem that the sample will fall from the inside of the sampling tube. It cannot ensure that the sample is always located inside the sampling tube during the process of taking it out from the initial position. In addition, there is a problem of difficulty in sampling after testing, and the outer wall of the sampling tube needs to be knocked to make the sample fall, which can easily cause damage to the sampling tube. Utility Model Content

[0004] The main purpose of the utility model is to provide a road thickness detection device, which can effectively solve the technical problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A road thickness detection device comprises a base, a threaded rod and a sliding rod are respectively installed on both sides of the top of the base, a sliding plate is slidably arranged between the threaded rod and the sliding rod, a motor is arranged on the top of the sliding plate, an output shaft of the motor passes through the top of the sliding plate and is fixedly connected to a concave plate, a sampling barrel is fixedly connected to the bottom of the concave plate, and a limiting structure is arranged on the inner side of the sampling barrel;

[0007] The limiting structure includes a screw rod, both ends of which are respectively connected to the inner bottom of the concave plate and the top of the sampling tube, a slider is slidably arranged on the outside of the screw rod, four grooves are opened on the inner side of the sampling tube near the bottom, a fixing rod is fixedly installed on the inner side of the groove, a limiting rod is rotatably installed on the outside of the fixing rod, four linkage rods are fixedly installed on the bottom of the slider, one end of the linkage rod passes through the top of the sampling tube and the inner top surface of the groove at the corresponding position, and a linkage frame is installed on one end of the linkage rod.

[0008] As a further solution of the utility model, an operating handle is rotatably provided on the top of the sliding block, which is located outside the screw rod, and the limit rod and the linkage frame are adaptively matched.

[0009] As a further solution of the utility model, a limit block is fixedly installed on the inner top surface of the groove, and an operating panel is fixedly installed on the top of the threaded rod.

[0010] As a further solution of the utility model, four casters are installed at the bottom of the base, a handlebar is arranged at one end of the base tilted toward the horizontal direction, and a circular hole is opened at the top of the base.

[0011] As a further solution of the utility model, four sliding grooves are opened on the inner side of the sampling barrel, and a clamping structure is arranged on the inner side of the sampling barrel. The clamping structure includes a clamping plate, and the clamping plate is slidably arranged on the inner side of the sampling barrel. A plurality of springs are arranged between the top of the clamping plate and the inner top of the sampling barrel, and an observation hole is opened on the outside of the sampling barrel, and a measuring ruler is arranged on the outside of the sampling barrel at a position corresponding to the observation hole.

[0012] As a further solution of the utility model, the pressing plate is adaptively matched with the slide groove, and the diameter of the circular hole is larger than the diameter of the sampling tube.

[0013] The beneficial effects of the utility model are as follows:

[0014] By setting a limit structure, it is helpful to keep the position of the core sample stable when it leaves the initial position of the road, so as to prevent it from falling from the inside of the sampling tube and affecting the detection work;

[0015] By providing a pressing structure, it is convenient to take out the core sample from the inside of the sampling tube after the sampling and testing work is completed, avoiding the problem of needing to knock the outer wall of the sampling tube in the past and increasing its service life.

[0016] By setting a limiting structure in conjunction with the pressing structure, it is helpful to limit the position of the coring sample, so that the bottom of the coring sample fits the limiting rod, making the thickness detection of the coring sample more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a road thickness detection device of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall front view structure of a road thickness detection device of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional side view of a sampling tube of a road thickness detection device of the utility model;

[0020] Figure 4 It is a schematic diagram of a partially sectional three-dimensional structure of a road thickness detection device of the utility model;

[0021] Figure 5The utility model is a road thickness detection device Figure 3 Enlarged view of point A in the middle;

[0022] Figure 6 The utility model is a road thickness detection device Figure 4 Enlarged view of point B in the middle.

[0023] In the figure: 1. base; 2. threaded rod; 3. sliding rod; 4. sliding plate; 5. motor; 6. concave plate; 7. sampling tube; 8. limiting structure; 9. pressing structure; 10. screw rod; 11. sliding block; 12. linkage rod; 13. linkage frame; 14. fixing rod; 15. limiting rod; 16. limiting block; 17. sliding groove; 18. pressing plate; 19. spring; 20. measuring ruler. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1-6 As shown, a road thickness detection device comprises a base 1, a threaded rod 2 and a slide rod 3 are respectively installed on both sides of the top of the base 1, a slide plate 4 is slidably arranged between the threaded rod 2 and the slide rod 3, a motor 5 is arranged on the top of the slide plate 4, an output shaft of the motor 5 passes through the top of the slide plate 4 and is fixedly connected with a concave plate 6, a sampling tube 7 is fixedly connected to the bottom of the concave plate 6, and a limiting structure 8 is arranged on the inner side of the sampling tube 7;

[0026] The limiting structure 8 includes a screw rod 10, the two ends of which are respectively connected to the inner bottom of the concave plate 6 and the top of the sampling tube 7, a slider 11 is slidably arranged on the outside of the screw rod 10, four grooves are opened on the inner side of the sampling tube 7 near the bottom, a fixing rod 14 is fixedly installed on the inner side of the groove, a limiting rod 15 is rotatably installed on the outside of the fixing rod 14, four linkage rods 12 are fixedly installed on the bottom of the slider 11, one end of the linkage rod 12 passes through the top of the sampling tube 7 and the inner top surface of the groove at the corresponding position, and a linkage frame 13 is installed on one end of the linkage rod 12.

[0027] The limiting structure 8 limits the core sample when it is cored, so as to prevent it from falling out of the sampling tube 7 during the movement.

[0028] In this embodiment, the top of the slider 11 is located outside the screw rod 10 and is rotatably provided with an operating handle, and the limiting rod 15 and the linkage frame 13 are adaptively matched.

[0029] The operating handle acts on the slider 11 to slide outside the screw rod 10 , and the linkage rod 12 acts on the limit rod 15 to move through the linkage frame 13 .

[0030] In this embodiment, a limit block 16 is fixedly installed on the inner top surface of the groove, and an operating panel is fixedly installed on the top of the threaded rod 2.

[0031] The limiting block 16 has a limiting effect on the limiting rod 15 .

[0032] In this embodiment, four casters are installed at the bottom of the base 1, a handlebar is provided at one end of the base 1 tilted toward the horizontal direction, and a circular hole is opened at the top of the base 1.

[0033] Under the action of the threaded rod 2, the slide plate 4 moves up and down with the sampling tube 7, and the sampling tube 7 passes through the inner side of the circular hole.

[0034] In this embodiment, four slide grooves 17 are opened on the inner side of the sampling barrel 7, and a clamping structure 9 is arranged on the inner side of the sampling barrel 7. The clamping structure 9 includes a clamping plate 18, and the clamping plate 18 is slidably arranged on the inner side of the sampling barrel 7. A plurality of springs 19 are arranged between the top of the clamping plate 18 and the inner top of the sampling barrel 7. An observation hole is opened on the outside of the sampling barrel 7, and a measuring ruler 20 is arranged on the outside of the sampling barrel 7 at a position corresponding to the observation hole.

[0035] The pressing structure 9 not only limits the position of the coring sample, making it fit the outside of the limiting rod 15 to facilitate the measurement of the thickness of the coring sample, but also solves the problem that the coring sample is difficult to take out from the inside of the sampling tube 7.

[0036] In this embodiment, the pressing plate 18 is adaptively matched with the slide groove 17 , and the diameter of the circular hole is larger than the diameter of the sampling tube 7 .

[0037] The circular hole is provided to facilitate the movement of the sampling tube 7 for sampling.

[0038] It should be noted that the utility model is a road thickness detection device, which can be placed at a site where it needs to work to achieve working conditions when in use;

[0039] The starting motor 5 acts on the concave plate 6 to rotate the sampling tube 7, and the operating disk is turned to rotate the threaded rod 2. The threaded rod 2 acts on the slide plate 4 to drive the motor 5 to move downward toward the ground outside the threaded rod 2 and the sliding rod 3. When the sampling tube 7 contacts the ground, it rotates to drill the ground. When the sampling tube 7 drills into the appropriate position on the ground under the action of the motor 5 and the threaded rod 2, the rotation of the motor 5 and the operating disk is stopped. At this time, the bottom of the sampling tube 7 is inserted into the soil layer on the ground, and the core sample is inside the sampling tube 7. At this time, the operating handle is turned to make the slider 11 move the linkage rod 12 toward the motor 5 to the appropriate position and then stop. In the process, the linkage rod 12 pulls up the limit rod 15 through the linkage frame 13. When the linkage rod 12 stops, the outside of the limit rod 15 fits the bottom of the limit block 16, so that the limit rod 15 and the linkage rod 12 are in a vertical state.

[0040] Then, the operating disk is rotated to rotate the threaded rod 2, and the threaded rod 2 acts on the slide plate 4 to slide toward the initial position, and finally slides to the initial position. Under the action of the spring 19, the clamping plate 18 is always in contact with the top of the coring sample. Since the density of the coring sample is greater than the density of the soil at the bottom inner side of the sampling tube 7, the coring sample gradually presses the soil out of the sampling tube 7 under the action of the elastic force of the spring 19 and the gravity of the coring sample itself, and finally the bottom of the coring sample is in contact with the outside of the limit rod 15. At this time, the thickness of the road can be obtained by observing the corresponding scale of the coring sample on the measuring ruler 20 through the observation hole.

Claims

1. A road thickness detection device, comprising a base (1), a threaded rod (2) and a sliding rod (3) are respectively installed on both sides of the top of the base (1), a slide plate (4) is slidably arranged between the threaded rod (2) and the sliding rod (3), a motor (5) is arranged on the top of the slide plate (4), an output shaft of the motor (5) passes through the top of the slide plate (4) and is fixedly connected to a concave plate (6), and a sampling tube (7) is fixedly connected to the bottom of the concave plate (6), characterized in that: A limiting structure (8) is provided on the inner side of the sampling tube (7); The limiting structure (8) comprises a screw rod (10), the two ends of which are respectively connected to the inner bottom of the concave plate (6) and the top of the sampling tube (7), a slider (11) is slidably arranged on the outside of the screw rod (10), four grooves are provided on the inner side of the sampling tube (7) near the bottom, a fixing rod (14) is fixedly installed on the inner side of the groove, a limiting rod (15) is rotatably installed on the outside of the fixing rod (14), four linkage rods (12) are fixedly installed on the bottom of the slider (11), one end of the linkage rod (12) passes through the top of the sampling tube (7) and the inner top surface of the groove at the corresponding position, and a linkage frame (13) is installed on one end of the linkage rod (12).

2. A road surface thickness detection device according to claim 1, characterized in that: The top of the sliding block (11) is located outside the screw rod (10) and is rotatably provided with an operating handle, and the limiting rod (15) and the linkage frame (13) are adaptively matched.

3. A road surface thickness detection device according to claim 1, characterized in that: A limit block (16) is fixedly mounted on the inner top surface of the groove, and an operating panel is fixedly mounted on the top of the threaded rod (2).

4. A road surface thickness detection device according to claim 1, characterized in that: Four casters are installed at the bottom of the base (1); a handlebar is arranged at one end of the base (1) and tilted toward the horizontal direction; and a circular hole is opened at the top of the base (1).

5. A road surface thickness detection device according to claim 4, characterized in that: The inner side of the sampling tube (7) is provided with four slide grooves (17), the inner side of the sampling tube (7) is provided with a clamping structure (9), the clamping structure (9) comprises a clamping plate (18), the clamping plate (18) is slidably arranged on the inner side of the sampling tube (7), a plurality of springs (19) are arranged between the top of the clamping plate (18) and the inner top of the sampling tube (7), the outer side of the sampling tube (7) is provided with an observation hole, and the outer side of the sampling tube (7) is provided with a measuring ruler (20) at a position corresponding to the observation hole.

6. A road surface thickness detection device according to claim 5, characterized in that: The pressing plate (18) is adaptively matched with the slide groove (17), and the diameter of the circular hole is larger than the diameter of the sampling tube (7).

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