Portable road strength detection device

Abstract

The utility model relates to the technical field of road detection, and discloses a portable road strength detection device which comprises a movable bottom plate, a through hole is formed in the upper end of the bottom plate, a lifting assembly is arranged at the upper end of the bottom plate, the lifting end of the lifting assembly is connected with an acquisition assembly, and the acquisition assembly is located above the through hole; a plurality of guide plates are arranged at the upper end of the bottom plate; the lifting ring is arranged on the side wall of the guide plate in a sliding and sleeving manner; the multiple supporting plates are hinged to the side wall of the bottom plate, the ends, away from the bottom plate, of the supporting plates are connected with one end of the extension plate, and the supporting plates are detachably connected with the lifting ring; and a plurality of reinforcing teeth are distributed at the other end of the extension plate. The stability of the device can be improved.

Description

Technical Field

[0001] This utility model relates to the field of road testing technology, and in particular to a portable road strength testing device. Background Technology

[0002] Road surface refers to one or more layers of road structure paved with road construction materials on top of the roadbed, allowing vehicles to drive directly on its surface. To ensure that the road surface can bear vehicle loads, resist wheel wear, and maintain a reasonable thickness and smooth surface, it must have sufficient strength to resist damage from vehicles or excessive deformation. At the same time, it must have high stability, a certain degree of smoothness, and appropriate skid resistance to reduce damage to the road surface and vehicle components and reduce environmental pollution. When testing the strength of the road surface, samples can be collected for testing.

[0003] Patent CN221685937U discloses a road inspection and sampling device. In normal operation, the operator flips four rotating rods to a vertical position and then inserts protrusions into slots. Under the gravity of the lifting ring, the four rotating rods will not flip out arbitrarily. When the device reaches the designated position, the lifting ring is lifted, and the four rotating rods flip outwards, pressing the lifting ring onto the four rotating rods. Under the gravity of the lifting ring, the anti-slip blocks at the ends of the four rotating rods contact the ground, thus effectively preventing translation. However, the above-mentioned device has the following defects in use. When sampling, the drill barrel needs to penetrate to a certain depth below the road surface. As the drill barrel gradually penetrates deeper, the friction area between it and the road surface material increases when it rotates. This vibration is transmitted through the drill barrel to the mounting plate and the electric push rod, and then to the entire device structure. Since the device only relies on the anti-slip blocks at the ends of the four flip rods to contact the ground, its shock resistance is limited and it cannot effectively buffer and absorb the vibration energy brought by the rotation of the drill barrel. Moreover, the vibration will also cause the device to have a slight displacement in the horizontal direction, affecting the vertical drilling accuracy of the drill barrel, resulting in deviations in the sampling position. The obtained sample cannot accurately represent the situation of the target detection point, which seriously affects the sampling accuracy and thus interferes with the accuracy and reliability of the road detection results.

[0004] Therefore, how to increase the stability of the device has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The present invention aims to provide a portable road strength testing device to overcome the shortcomings mentioned above.

[0006] To achieve the above objectives, the technical solution of this utility model is: a portable road strength testing device, comprising:

[0007] A movable base plate has a through hole at its upper end and a lifting assembly is provided at its upper end. The lifting end of the lifting assembly is connected to a data acquisition assembly, which is located above the through hole.

[0008] Guide plates, with a plurality of guide plates arranged on the upper end of the base plate;

[0009] A lifting ring is slidably sleeved on the side wall of the guide plate;

[0010] Support plates, wherein a plurality of support plates are hingedly arranged on the side wall of the base plate, one end of which is away from the base plate and one end of the extension plate are connected, and are detachably connected to the lifting ring; and

[0011] The other end of the extension plate is provided with several reinforcing teeth, which are used to connect with the ground.

[0012] Furthermore, the side wall of the support plate away from the bottom plate is provided with a limiting protrusion, and the lower end of the lifting ring is provided with a number of limiting grooves. The number of limiting protrusions and the number of limiting grooves are detachably connected in a one-to-one correspondence.

[0013] Furthermore, each of the two opposing sidewalls of the two support plates is provided with two first connecting holes, and the lifting ring is provided with two second connecting holes opposite each other. The first connecting holes and the second connecting holes are arranged opposite each other, and the first connecting holes and the second connecting holes are detachably connected by a fixing component.

[0014] Furthermore, the fixing component includes a first fastener and a fixing cap, with one end of the first fastener passing through the first connecting hole and the second connecting hole in sequence and detachably connected to the fixing cap.

[0015] Furthermore, the lifting assembly includes a support frame, a screw, a guide rod, a slider, and a handwheel. The upper end of the base plate is connected to the lower end of the support frame. A screw is rotatably connected between the support frame and the base plate in the vertical direction. Two guide rods are arranged opposite to each other between the support frame and the base plate. The two guide rods are symmetrically arranged on both sides of the screw. The screw and the slider are threadedly connected. Both guide rods are slidably connected to the slider. The slider is connected to the acquisition assembly. The upper end of the screw rotatably passes through the upper end of the support frame and is connected to the handwheel.

[0016] Furthermore, the acquisition assembly includes a connecting plate, a motor, a connecting rod, a mounting plate, a first acquisition component, and a second acquisition component. The slider is connected to the connecting plate. The motor is located at the upper end of the connecting plate. The output shaft of the motor rotates through the connecting plate and is connected to one end of the connecting rod. The other end of the connecting rod is connected to the mounting plate. The lower end of the mounting plate is fixedly connected to the first acquisition component. The lower end of the mounting plate is detachably connected to the second acquisition component, and the first acquisition component and the second acquisition component are detachably connected.

[0017] Furthermore, the longitudinal cross-sections of the first and second acquisition components are both semi-circular. The mounting plate is provided with a first fixing hole, and the upper end of the second acquisition component is provided with a second fixing hole. The second fastener is detachably connected through the first and second fixing holes. The sidewalls of the first acquisition component are provided with two fixing grooves, and the sidewalls of the second acquisition component are provided with two fixing protrusions. The fixing grooves and fixing protrusions are detachably plugged in.

[0018] Furthermore, both the lower ends of the first and second collecting components are provided with serrations.

[0019] Furthermore, a protective sleeve is provided around the periphery of the extension plate, and the reinforcing teeth are located inside the protective sleeve. The pad provided at the bottom of the protective sleeve abuts against the tip of the reinforcing teeth.

[0020] Furthermore, the lower end of the base plate is provided with several casters.

[0021] Compared with the prior art, this utility model has at least the following advantages: In use, the device is first moved to the detection position, and the support plate hinged to the side wall of the base plate is unfolded, allowing the reinforcing teeth on the extension plate to insert into the ground. Simultaneously, the lifting ring slides down along the guide plate and presses firmly against the support plate. Then, the lifting assembly is activated, causing the acquisition component connected to the lifting end to descend through the through-hole in the base plate. When the acquisition component contacts the road surface and begins acquisition, vibration is generated. Because the reinforcing teeth are firmly connected to the ground, the contact area and friction between the device and the ground are increased, effectively dispersing the vibration energy generated by the acquisition component, thereby reducing the acquisition position deviation caused by vibration. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1This is a schematic diagram of the overall structure of the portable road strength testing device of this utility model;

[0024] Figure 2 This is a cross-sectional view of the portable road strength testing device of this utility model;

[0025] Figure 3 This is an exploded view of the support plate and lifting ring of this utility model;

[0026] Figure 4 This is a cross-sectional view of a portion of the structure of this utility model;

[0027] Figure 5 This is an exploded view of the data acquisition component of this utility model.

[0028] Reference numerals: 1. Base plate; 2. Through hole; 3. Guide plate; 4. Support plate; 5. Lifting ring; 6. Extension plate; 7. Reinforcing tooth; 8. Limiting protrusion; 9. Limiting groove; 10. First fastener; 11. Fixing cap; 12. Support frame; 13. Screw; 14. Guide rod; 15. Slider; 16. Handwheel; 17. Connecting plate; 18. Motor; 19. Connecting rod; 20. Mounting plate; 21. First collecting component; 22. Second collecting component; 23. Second fixing hole; 24. Second fastener; 25. Fixing groove; 26. Fixing protrusion; 27. Serrated edge; 28. Protective sleeve; 29. ​​Pad; 30. Moving wheel. Detailed Implementation

[0029] 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.

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Reference Figure 1-2This utility model provides a portable road strength testing device, including a movable base plate 1 with a through hole 2 at its upper end, providing a channel for the subsequent data acquisition component to collect road data. A lifting component is also mounted on the upper end of the base plate 1, with its lifting end connected to the data acquisition component, which is located above the through hole 2. The lifting component's operation allows the data acquisition component to move vertically, thus enabling road data collection. Four guide plates 3 are evenly distributed on the upper end of the base plate 1, providing support for the lifting ring 5. The device serves a guiding function; the lifting ring 5 is slidably sleeved on the side wall of the guide plate 3, and the lifting ring 5 can slide up and down along the guide plate 3; in addition, four support plates 4 are hinged on the side wall of the base plate 1, and the end of the support plate 4 away from the base plate 1 is connected to one end of the extension plate 6, and the support plate 4 and the lifting ring 5 are detachably connected; and several conical reinforcing teeth 7 are arranged on the other end of the extension plate 6. When in use, the reinforcing teeth 7 can be inserted into the ground to fix the entire detection device and prevent the device from shifting during the detection and acquisition process, which would affect the accuracy of the detection results.

[0032] Reference Figure 3 The side wall of the support plate 4 away from the bottom plate 1 is provided with a limiting protrusion 8, and the lower end of the lifting ring 5 is provided with several limiting grooves 9. The several limiting protrusions 8 and several limiting grooves 9 are detachably connected in a one-to-one correspondence.

[0033] Reference Figure 3-4 Each of the two support plates 4 has two first connecting holes on its opposite sidewalls, and the lifting ring 5 has two second connecting holes. The first connecting holes and the second connecting holes are arranged opposite each other, and the first connecting holes and the second connecting holes are detachably connected by a fixing component.

[0034] The fixing assembly includes a first fastener 10 and a fixing cap 11. The first fastener 10 is a bolt, and the fixing cap 11 is frustoconical. One end of the first fastener 10 passes through the first connecting hole.

[0035] The second connecting hole is detachably connected to the fixing cap 11. By tightening the first fastener 10 and the fixing cap 11, the support plate 4 and the lifting ring 5 can be securely connected.

[0036] Reference Figure 1The lifting assembly includes a support frame 12, a screw 13, a guide rod 14, a slider 15, and a handwheel 16. The upper end of the base plate 1 is connected to the lower end of the support frame 12. The support frame 12 and the base plate 1 are rotatably connected by the screw 13 in the vertical direction. Two guide rods 14 are arranged opposite to each other between the support frame 12 and the base plate 1. The two guide rods 14 are symmetrically arranged on both sides of the screw 13. The screw 13 and the slider 15 are threadedly connected. Both guide rods 14 are slidably connected to the slider 15. The slider 15 is connected to the acquisition component. The guide rods 14 guide and stabilize the slider 15 to ensure the smoothness of the slider 15 during movement. The upper end of the screw 13 rotates through the upper end of the support frame 12 and is connected to the handwheel 16.

[0037] Reference Figure 5 The data acquisition assembly includes a connecting plate 17, a motor 18, a connecting rod 19, a mounting plate 20, a first data acquisition component 21, and a second data acquisition component 22. The slider 15 is connected to the connecting plate 17. The motor 18 is located at the upper end of the connecting plate 17. The output shaft of the motor 18 rotates through the connecting plate 17 and is connected to one end of the connecting rod 19. The other end of the connecting rod 19 is connected to the mounting plate 20. The lower end of the mounting plate 20 is fixedly connected to the first data acquisition component 21. The lower end of the mounting plate 20 is detachably connected to the second data acquisition component 22. The first data acquisition component 21 and the second data acquisition component 22 are also detachably connected. When the slider 15 slides to the bottom of its stroke, the length of the connecting rod 19 ensures that the first data acquisition component 21 and the second data acquisition component 22 are fully extended into the road detection area.

[0038] Both the first collection element 21 and the second collection element 22 have semi-circular longitudinal sections. The mounting plate 20 has a first fixing hole through it, and the upper end of the second collection element 22 has a second fixing hole 23. The second fastener 24 passes through the first fixing hole and the second fixing hole 23 and can be detachably connected. The second fastener 24 is a bolt. The side wall of the first collection element 21 has two fixing grooves 25 facing each other, and the side wall of the second collection element 22 has two fixing protrusions 26 facing each other. The fixing grooves 25 and the fixing protrusions 26 can be detachably inserted. Through the above connection method, the staff can easily take out the test samples in the first collection element 21 and the second collection element 22.

[0039] In addition, both the lower ends of the first collecting element 21 and the lower ends of the second collecting element 22 are provided with serrations 27, which can easily cut into the collecting layer of the road.

[0040] Reference Figure 1-2 The extension plate 6 is fitted with a protective sleeve 28 around its perimeter, and the reinforcing teeth 7 are located inside the protective sleeve 28. The protective sleeve 28 is made of silicone. The pad 29 set at the bottom of the protective sleeve 28 abuts against the tip of the reinforcing teeth 7. The protective sleeve 28 can prevent the reinforcing teeth 7 from being damaged by collision when idle, and can also prevent them from accidentally injuring the staff, thus playing a dual protection role.

[0041] The lower end of the base plate 1 has four movable wheels 30. The movable wheels 30 are omnidirectional wheels. This design makes the entire detection device easy to move and can be flexibly transferred between different detection locations. The height of the extension plate 6 is the same as the height of the movable wheels 30, so that the reinforcing teeth 7 can be fully inserted into the ground. The staff can tie the traction rope (not shown in the figure) to the lifting ring 5 and pull the device to realize the movement.

[0042] The working principle of this utility model is as follows: When in use, first move the device to the point to be tested, then disconnect the first fastener 10 from the fixing cap 11, and the operator manually lifts the lifting ring 5 to separate the limiting protrusion 8 from the limiting groove 9; then rotate the support plate 4 so that the reinforcing teeth 7 on it face the ground; finally, insert the reinforcing teeth 7 into the ground, and the lifting ring 5 slides down along the guide plate 3 and presses on the four support plates 4.

[0043] After the fixation is completed, the data acquisition operation stage begins. The operator turns the handwheel 16, which drives the screw 13 to rotate. Due to the threaded connection between the screw 13 and the slider 15, the slider 15 will move up and down along the axial direction of the screw 13, thereby driving the data acquisition component to move up and down.

[0044] During this period, the motor 18 is started, and the output shaft of the motor 18 drives the connecting rod 19 and the mounting plate 20 to rotate, thereby causing the first collection element 21 and the second collection element 22 to rotate. The serrations 27 at the lower ends of the first collection element 21 and the second collection element 22 cut into the road collection layer, and road samples are continuously collected as they rotate.

[0045] After the data collection is completed, the collection component is raised to the initial position by rotating the handwheel 16 in the opposite direction, the second collection component 22 is removed, and the test sample is taken out.

[0046] After the sample is removed, lift the lifting ring 5 and rotate the support plate 4 upwards to lift the reinforcing teeth 7 on the extension plate 6 off the ground. Then, insert the limiting protrusion 8 into the corresponding limiting groove 9 for fixation. At this time, the lifting ring 5 is connected to the support plate 4 through the fixing component. After completing the above operations, the device can be moved to the next sampling point to be tested.

[0047] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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.

[0048] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A portable road strength detection device, characterized by, The utility model relates to a movable bottom plate (1) is provided with the through -hole (2) on the upper end, the upper end is equipped with the lifting assembly, the lifting end of lifting assembly and the collection assembly are connected, and the collection assembly is located the upper portion of through -hole (2), the bottom plate (1) upper end is equipped with a plurality of guide plates (3), lifting ring (5) is slidably sleeved in the lateral wall of guide plate (3), the lateral wall of the bottom plate (1) is hingedly equipped with a plurality of support plates (4), the one end of support plate (4) away from the bottom plate (1) and the one end of extension plate (6) are connected, and the support plate (4) and lifting ring (5) are detachably connected, the other end of extension plate (6) is equipped with a plurality of reinforcing teeth (7), and the reinforcing teeth (7) are used to be connected with the ground. The lateral wall of the one end of support plate (4) away from the bottom plate (1) is provided with a limiting protrusion (8), the lower end of lifting ring (5) is provided with a plurality of limiting grooves (9), a plurality of limiting protrusions (8) and a plurality of limiting grooves (9) are one-to-one detachably inserted. The opposite lateral walls of the two support plates (4) are provided with two first connecting holes, and the lifting ring (5) is provided with two second connecting holes in opposition. The first connecting hole and the second connecting hole are one-to-one oppositely arranged, and the first connecting hole and the second connecting hole are detachably connected through a fixing assembly. The fixing assembly comprises a first fastener (10) and a fixing cap (11), one end of the first fastener (10) penetrates the first connecting hole and the second connecting hole in sequence and is detachably connected with the fixing cap (11). The lifting assembly comprises a support frame (12), a screw rod (13), a guide rod (14), a sliding block (15) and a hand wheel (16), the upper end of the bottom plate (1) is connected with the lower end of the support frame (12), the screw rod (13) is rotatably connected between the support frame (12) and the bottom plate (1) in the vertical direction, two guide rods (14) are oppositely arranged between the support frame (12) and the bottom plate (1), the two guide rods (14) are symmetrically arranged on the two sides of the screw rod (13), the screw rod (13) and the sliding block (15) are threadedly connected, the two guide rods (14) are slidably connected with the sliding block (15), the sliding block (15) is connected with the collection assembly, the upper end of the screw rod (13) penetrates the upper end of the support frame (12) and is connected with the hand wheel (16).

2. The portable road strength detection device according to claim 1, characterized by ​ 3. The portable road strength detection device according to claim 2, characterized by ​ 4. The portable road strength detection device according to claim 3, characterized by ​ 5. The portable road strength detection device according to claim 1, characterized by ​ 6. The portable road strength detection device according to claim 5, characterized by The collecting assembly comprises a connecting plate (17), a motor (18), a connecting rod (19), a mounting plate (20), a first collecting piece (21) and a second collecting piece (22), the sliding block (15) is connected with the connecting plate (17), the motor (18) is arranged at the upper end of the connecting plate (17), the output shaft of the motor (18) is rotatably connected with one end of the connecting rod (19) penetrating through the connecting plate (17), the other end of the connecting rod (19) is connected with the mounting plate (20), the lower end of the mounting plate (20) is fixedly connected with the first collecting piece (21), the lower end of the mounting plate (20) is detachably connected with the second collecting piece (22), and the first collecting piece (21) is detachably connected with the second collecting piece (22).

7. The portable road strength detection device according to claim 6, characterized by The longitudinal section of the first collecting piece (21) and the longitudinal section of the second collecting piece (22) are both semicircular, the mounting plate (20) is provided with a first fixing hole penetrating through, the upper end of the second collecting piece (22) is provided with a second fixing hole (23), a second fastener (24) is detachably connected by penetrating through the first fixing hole and the second fixing hole (23), the side wall of the first collecting piece (21) is oppositely provided with two fixing grooves (25), the side wall of the second collecting piece (22) is oppositely provided with two fixing protrusions (26), and the fixing grooves (25) and the fixing protrusions (26) are detachably inserted.

8. The portable road strength detection device according to claim 7, characterized by The lower end of the first collecting piece (21) and the lower end of the second collecting piece (22) are both provided with sawteeth (27).

9. The portable road strength detection device according to claim 1, characterized by The extension plate (6) is sleeved with a protective sleeve (28), the reinforcing teeth (7) are located in the protective sleeve (28), and the bottom of the protective sleeve (28) is provided with a pad (29) abutting against the tip portion of the reinforcing teeth (7).

10. The portable road strength detection device according to any one of claims 1 to 9, characterized by The lower end of the bottom plate (1) is provided with a plurality of moving wheels (30).

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