Highway pavement hollowing detection equipment

Abstract

The utility model relates to the field of pavement hollowing detection, in particular to highway pavement hollowing detection equipment which comprises a movable chassis, the movable chassis can move on a pavement, a supporting seat is arranged on the movable chassis, a knocking driving assembly and a knocking hammer are arranged on the supporting seat, and the knocking driving assembly is fixedly connected with the knocking hammer. A rotation driving assembly is arranged in the moving chassis, and an ink jet mechanism is arranged on the rotating disc. According to the device, the knocking driving assembly drives the knocking hammer to swing up and down to knock the road surface at a certain frequency, a worker judges whether hollowing occurs or not according to the sound generated when the road surface is knocked, the rotary driving assembly is arranged to expand the knocking range and improve the detection efficiency, the ink jet mechanism is arranged to mark the hollowing area, and the detection efficiency is improved. And subsequent maintenance and repair work can be conveniently carried out.

Description

Technical Field

[0001] The present application relates to the technical field of road hollowing detection, and in particular to a road hollowing detection device. Background Art

[0002] During road construction, road hollowing is prone to occur due to factors such as material ratio, mixture mixing, and compaction. These hollows will cause the adhesion between the road surface material and the base material to decrease, thus affecting the service life and safety of the road. Therefore, road hollowing detection is of great significance to road quality and improving road safety.

[0003] In the related art, acoustic testing is a commonly used method for detecting hollowing. This method knocks on the surface or inside of the road surface, and then determines whether there is hollowing in the concrete based on the different knocking sounds. The knocking tool is a small hammer or a steel nail.

[0004] The problem with the related technology is that when workers use the acoustic detection method to detect hollow drums, they need to squat on the road surface and knock at certain intervals. This will cause leg discomfort for workers during long work periods. Moreover, when hollow drums are detected, the area cannot be marked in time, resulting in the inability to accurately locate the hollow drum position during subsequent maintenance. Utility Model Content

[0005] In order to reduce the discomfort of workers during the detection process and alleviate the workload, the present application provides a highway pavement hollowing detection device.

[0006] The present application provides a road pavement hollowing detection device that adopts the following technical solution:

[0007] A road pavement hollowing detection device comprises a mobile chassis, which can move on the road surface; a support seat is provided on the mobile chassis; a percussion drive assembly and a percussion hammer are provided on the support seat; the percussion drive assembly and the percussion hammer are fixedly connected and configured to drive the percussion hammer to swing up and down; a rotating drive assembly is provided in the mobile chassis; a rotating disk is connected to the bottom of the rotating drive assembly; an inkjet mechanism is provided on the rotating disk; the support seat and the inkjet mechanism are distributed up and down; the rotating drive assembly is configured to drive the support seat and the inkjet mechanism to rotate synchronously.

[0008] By adopting the above technical solution, the knocking drive component drives the knocking hammer to swing up and down, so that the knocking hammer knocks the road surface at a certain frequency, and the sound during knocking is used to determine whether there is a hollow drum. The setting of the rotating drive component can expand the detection range, and the setting of the inkjet mechanism makes it convenient to mark the hollow drum area during the detection process, which is convenient for subsequent maintenance and repair.

[0009] Optionally, an installation cavity is formed in the mobile chassis, and the rotary drive assembly is fixedly installed in the installation cavity. A first through groove is opened on one surface of the mobile chassis where a support seat is provided, and a connecting piece is provided in the first through groove. The support seat is connected to the rotary drive assembly via the connecting piece.

[0010] By adopting the above technical solution, the mobile chassis plays a certain protective role for the rotating drive assembly. The rotating drive assembly drives the support seat to move through the connecting piece, and then drives the knocking drive assembly and the knocking hammer to move synchronously. The first through groove can limit the position of the connecting piece, thereby limiting the moving direction of the knocking hammer.

[0011] Optionally, the rotating disk and the inkjet mechanism are both arranged in the installation cavity, the inkjet mechanism includes an ink cartridge and a nozzle, the ink cartridge is fixed on the rotating disk, the nozzle is installed on the side surface of the ink cartridge facing the striking hammer, and a second through groove is opened on the side of the movable chassis, and the output end of the nozzle extends to the outside through the second through groove.

[0012] By adopting the above technical solution, when the rotating drive assembly drives the rotating disk to rotate, the inkjet mechanism moves synchronously with the striking hammer, so that the inkjet mechanism is always under the striking hammer. The ink cartridge is filled with pigment. When a hollow drum is detected, the nozzle can be controlled to spray pigment to the front striking area, thereby completing the marking of the hollow drum part.

[0013] Optionally, the percussion drive assembly includes a first driving wheel, a first driven wheel and a first driver for driving the first driving wheel to rotate, the first driving wheel is cooperatively arranged on one side of the first driven wheel, the first driven wheel is connected to a transmission rod, and the percussion hammer is fixed to one end of the transmission rod away from the first driven wheel.

[0014] By adopting the above technical solution, the first driver drives the first driving wheel to rotate, and the first driven wheel rotates accordingly, and the first driven wheel drives the striking hammer to rotate through the transmission rod.

[0015] Optionally, the percussion drive assembly also includes an elastic member, one end of which is fixedly connected to the support seat, and the other end of which is fixedly connected to the transmission rod. The elastic member is configured as a structure that can drive the percussion hammer to reset when the first driving wheel releases the driving force on the first driven wheel, and the first driving wheel is a half gear.

[0016] By adopting the above technical solution, when the part of the first driving wheel with teeth is meshed with the first driven wheel, the percussion hammer can be driven to rotate with the first driven wheel through the transmission rod. At this time, the elastic part is continuously compressed. When the part of the first driving wheel without teeth is facing the first driven wheel, the elastic part restores its deformation and drives the percussion hammer to rotate in the opposite direction through transmission, so as to realize the up and down swing of the percussion hammer.

[0017] Optionally, a box body is provided on the support seat, the knocking drive assembly is accommodated in the box body, a third through slot is opened on the box body, and the transmission rod is slidably disposed in the third through slot.

[0018] By adopting the above technical solution, the box body can provide protection for the knocking drive assembly, and the third through groove can limit the moving direction of the transmission rod.

[0019] Optionally, a sliding shell is provided in the box body, and the elastic member includes an arc spring arranged in the sliding shell, one end of the arc spring is fixed to the inner wall of the sliding shell, and the other end is connected to a sliding block, the sliding block is arranged in cooperation with the sliding shell, and the transmission rod is fixedly connected to the sliding block.

[0020] By adopting the above technical solution, the sliding shell provides support and expansion and contraction space for the arc spring, and limits the expansion and contraction direction of the arc spring.

[0021] Optionally, the rotary drive assembly includes a second driving wheel, a third driving wheel and a second driven wheel, the second driving wheel and the third driving wheel are both fan gears and are meshed with the second driven wheel, and the rotary drive assembly also includes a second driver for driving the second driving wheel and the third driving wheel to rotate, so as to form a structure that can drive the second driven wheel to rotate reciprocatingly within a certain range.

[0022] By adopting the above technical solution, the second driver drives the second driving wheel and the third driving wheel to rotate. When the second driving wheel and the third driving wheel, both of which are fan-shaped gears, rotate in opposite directions, they can drive the second driven wheel to rotate reciprocatingly, thereby driving the support seat and the striking hammer arranged on the support seat to swing left and right.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The striking drive assembly drives the striking hammer to swing up and down and strike the road surface at a certain frequency. The staff judges whether there is hollowing by the sound made when striking the road surface. The setting of the rotating drive assembly can expand the striking range and improve the detection efficiency. The inkjet mechanism is set under the striking hammer. When hollowing is detected, the nozzle can be driven to spray paint to the striking position to mark the hollow area, which is convenient for subsequent maintenance and repair work. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of a top-view cross-sectional structure of an embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of the side cross-sectional structure of an embodiment of the present application.

[0027] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure at point A in the middle.

[0028] Figure 4 It is a schematic diagram of the external main structure of the mobile chassis of the embodiment of the present application.

[0029] Figure numerals: 1. Mobile chassis; 2. Support seat; 3. Percussion drive assembly; 31. First driving wheel; 32. First driven wheel; 33. Transmission rod; 34. Elastic member; 4. Percussion hammer; 5. Rotation drive assembly; 51. Second driving wheel; 52. Third driving wheel; 53. Second driven wheel; 6. Rotating disk; 7. Inkjet mechanism; 71. Ink cartridge; 72. Nozzle; 8. Mounting cavity; 9. First through slot; 10. Connecting member; 11. Second through slot; 12. Box body; 13. Third through slot; 14. Sliding shell; 15. Sliding block. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-4 This application is described in further detail.

[0031] The present application embodiment discloses a road pavement hollowing detection device. Figure 1 A highway pavement hollowing detection device includes a mobile chassis that can move along the highway pavement. Specifically, a moving wheel can be installed on the side of the mobile chassis facing the road surface, and the mobile chassis can be manually pushed by a staff member to move. A power component can also be set in the mobile chassis to provide driving force for the moving wheel to automatically rotate, thereby moving the mobile chassis.

[0032] A percussion hammer 4 and a percussion drive assembly 3 are provided on the mobile chassis. During the movement, the percussion drive assembly 3 drives the percussion hammer 4 to swing up and down within a certain range. The percussion hammer 4 can be configured to consist of a connecting rod and a metal ball arranged at one end of the connecting rod. The driving end of the percussion drive assembly 3 is connected to the connecting rod, driving the connecting rod to rotate, so that the metal ball swings in a direction close to or away from the road surface. Specifically, the percussion hammer 4 has a first extreme position and a second extreme position within the swing range of the percussion drive assembly 3. When the percussion hammer 4 is in the first extreme position, the metal ball is located above the road surface; when the percussion hammer 4 is in the second extreme position, the metal ball strikes the road surface. By the sound emitted by the metal ball striking the road surface, it can be determined whether the hollow drum phenomenon occurs in the area.

[0033] Reference Figure 2 The knocking drive assembly 3 can specifically adopt the following structure: it includes a first driving structure for driving the knocking hammer 4 to move from the first extreme position to the second extreme position, and a second driving structure for driving the knocking hammer 4 to move from the second extreme position to the first extreme position, and a transmission rod 33 for transmitting driving force, the knocking hammer 4 is fixed to one end of the transmission rod 33, and the knocking drive assembly 3 is fixed to the other end of the transmission rod 33.

[0034] Furthermore, the first driving structure includes a first driving wheel 31 and a first driven wheel 32 that are meshed with each other, and a first driver (not shown in the drawings) that drives the first driving wheel 31 to rotate. The first driver preferably uses a forward and reverse motor, and the first driving wheel 31 is a half gear. When the forward and reverse motor drives the first driving wheel 31 to rotate, the part of the first rotating wheel with teeth meshes with the first driven wheel 32, and the first driven wheel 32 can rotate with the first driving wheel 31. As the first rotating wheel continues to rotate, its smooth part without teeth rotates toward the first driven wheel 32, and the driving force of the first driving wheel 31 on the first driven wheel 32 is released.

[0035] The fixed end of the transmission rod 33 and the striking drive assembly 3 is located at the rotation axis of the first driven wheel 32 and extends radially along the first driven wheel 32 so that when the first driven wheel 32 rotates, the transmission rod 33 rotates accordingly, thereby driving the striking hammer 4 to rotate.

[0036] Furthermore, the second driving structure includes an elastic member 34, which is arranged between the support seat 2 and the transmission rod 33. When the knocking drive assembly 3 drives the knocking hammer 4 to move from the first extreme position to the second extreme position through the transmission rod 33, the elastic member 34 is continuously compressed. When the driving force of the first driving wheel 31 on the first driven wheel 32 is released, the elastic member 34 restores its deformation, thereby driving the knocking hammer 4 to reset from the second extreme position to the first extreme position through the transmission rod 33.

[0037] Reference Figure 2 and Figure 3 A support base 2 is provided on the mobile chassis, a box body 12 is provided on the support base 2, and the knocking drive assembly 3 is accommodated in the box body 12. Specifically, the first driving wheel 31 and the first driven wheel 32 are both rotatably connected to the box body 12. A sliding shell 14 is provided in the box body 12. The elastic member 34 includes an arc spring provided in the sliding shell 14. The sliding shell 14 is provided as an arc structure adapted to the arc spring, and its center is located on the rotation axis of the first driven wheel 32. One end of the arc spring abuts against the inner wall of the sliding shell 14, and the other end is connected to a sliding block 15, which can slide in the sliding shell 14, and the transmission rod 33 is connected to the sliding block 15.

[0038] It can be understood that a third through slot 13 should be opened on the box body 12, and the transmission rod 33 is slidably penetrated in the third through slot 13. The third through slot 13 is arc-shaped and the two ends correspond to the first extreme position and the second extreme position of the knock hammer 4 respectively, that is, when the knock hammer 4 is located at the first extreme position, the transmission rod 33 abuts against one end of the third through slot 13, and when the knock hammer 4 is located at the second extreme position, the transmission rod 33 abuts against the other end of the third through slot 13.

[0039] With the above structure, when the first driving wheel 31 drives the percussion hammer 4 to move from the first extreme position to the second extreme position, the transmission rod 33 drives the sliding block 15 to slide in the sliding shell 14, compressing the arc spring; when the first driving wheel 31 contacts the driving force on the first driven wheel 32, the arc spring restores its deformation, driving the sliding block 15 to slide in the opposite direction, and then the transmission rod 33 drives the percussion hammer 4 to reset from the second extreme position to the first extreme position.

[0040] Reference Figure 1 , Figure 2 and Figure 4 A mounting cavity 8 is provided in the mobile chassis, a rotary drive assembly 5 is provided in the mounting cavity 8, the rotary drive assembly 5 has a first driving end, a first through groove 9 is provided on one side of the mobile chassis where the support seat 2 is provided, a connecting member 10 is slidably provided in the first through groove 9, the connecting member 10 connects the first driving end of the rotary drive assembly 5 with the support seat 2, and the rotary drive assembly 5 can drive the percussion hammer 4 to swing left and right in the horizontal plane through the support seat 2.

[0041] Specifically, the rotary drive assembly 5 includes a second driving wheel 51, a third driving wheel 52 and a second driven wheel 53. The second driving wheel 51 and the third driving wheel 52 are respectively meshed with the two sides of the second driven wheel 53, and the second driving wheel 51 and the third driving wheel 52 are both fan-shaped gears, that is, the second driving wheel 51 and the third driving wheel 52 are both formed with fan-shaped teeth. The rotary drive assembly 5 also includes a second driver (not shown in the drawings) that drives the second driving wheel 51 and the third driving wheel 52 to rotate respectively. The second driver preferably adopts a forward and reverse motor.

[0042] The second driver drives the second driving wheel 51 and the third driving wheel 52 to rotate respectively, so as to alternately drive the second driven wheel 53 to rotate. It can be understood that in order to realize the left and right swing of the striking hammer 4, it should be satisfied that when the part of the second driving wheel 51 provided with teeth is meshed with the second driven wheel 53, the part of the third driving wheel 52 without teeth is facing the second driven wheel 53; when the part of the second rotating wheel without teeth rotates to face the second driven wheel 53, the part of the third driving wheel 52 provided with teeth rotates to mesh with the second driven wheel 53, so as to alternately drive the second driven wheel 53 to rotate. In addition, the rotation directions of the second driving wheel 51 and the third driving wheel 52 should be opposite, that is, when the second driving wheel 51 rotates clockwise, the third driving wheel 52 should rotate counterclockwise.

[0043] Reference Figure 1 , Figure 2 and Figure 4The rotary drive assembly 5 also has a second drive end, and a rotating shaft is connected to the middle of the second driven wheel 53. The first drive end and the second drive end are respectively formed at the two ends of the rotating shaft, wherein the second drive end is connected to a rotating disk 6, and an inkjet mechanism 7 is arranged on the rotating disk 6. The inkjet mechanism 7 includes an ink cartridge 71 fixed on the rotating disk 6, and a nozzle 72 arranged on a side of the ink cartridge 71 facing the striking hammer 4. The ink cartridge 71 is filled with pigment, and the nozzle 72 is preferably an electric jet nozzle 72, which can be automatically controlled to open or close. A second through slot 11 is opened on the side of the mobile chassis, and the output end of the nozzle 72 extends to the outside of the mobile chassis through the second through slot 11.

[0044] The inkjet mechanism 7 is arranged below the hammer 4. When the rotary drive assembly 5 drives the hammer 4 to swing left and right, the inkjet mechanism 7 swings accordingly and is always below the hammer 4. The sound emitted by the hammer 4 when it strikes the road surface is used to determine whether there is a hollow drum. If there is a hollow drum, the nozzle 72 is controlled to open and spray the pigment toward the position of the hammer 4 to achieve marking, which is convenient for subsequent maintenance and repair. It is understandable that in order to ensure that the pigment can be sprayed to the position where the road surface is struck, the spray angle of the nozzle 72 needs to be limited.

[0045] The implementation principle of a road pavement hollowing detection device in an embodiment of the present application is as follows: when performing hollowing detection, the mobile chassis moves on the road surface, and the knocking drive component 3 drives the knocking hammer 4 to swing up and down to knock on the road surface. At the same time, the rotating drive component 5 drives the knocking hammer 4 to swing left and right through the support seat 2, so that the knocking hammer 4 knocks on the fan-shaped area of ​​the road surface. The staff can judge whether there is a hollowing by the sound transmitted when knocking on the road surface. When a hollowing occurs, the staff controls the pigment in the ink cartridge 71 to be ejected from the nozzle 72 to the knocking position of the road surface, and marks the hollow area to facilitate subsequent maintenance and filling work.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A road pavement hollowing detection device, characterized in that: The invention comprises a mobile chassis (1), wherein the mobile chassis (1) is movable on a road surface, wherein a support seat (2) is arranged on the mobile chassis (1), wherein a knocking drive assembly (3) and a knocking hammer (4) are arranged on the support seat (2), wherein the knocking drive assembly (3) and the knocking hammer (4) are fixedly connected and configured to drive the knocking hammer (4) to swing up and down, wherein a rotating drive assembly (5) is arranged inside the mobile chassis, wherein a rotating disk (6) is connected to the bottom of the rotating drive assembly (5), wherein an inkjet mechanism (7) is arranged on the rotating disk (6), wherein the support seat (2) and the inkjet mechanism (7) are distributed up and down, and wherein the rotating drive assembly (5) is configured to drive the support seat (2) and the inkjet mechanism (7) to rotate synchronously.

2. A road pavement hollowing detection device according to claim 1, characterized in that: An installation cavity (8) is formed in the mobile chassis, and the rotary drive assembly (5) is fixedly installed in the installation cavity (8). A first through groove (9) is formed on a surface of the mobile chassis on which a support seat (2) is provided, and a connecting piece (10) is provided in the first through groove (9). The support seat (2) is connected to the rotary drive assembly (5) via the connecting piece (10).

3. A road pavement hollowing detection device according to claim 2, characterized in that: The rotating disk (6) and the inkjet mechanism (7) are both arranged in the installation cavity (8); the inkjet mechanism (7) comprises an ink cartridge (71) and a nozzle (72); the ink cartridge (71) is fixed on the rotating disk (6); the nozzle (72) is installed on a side surface of the ink cartridge (71) facing the striking hammer (4); a second through slot (11) is provided on a side surface of the movable chassis; an output end of the nozzle (72) passes through the second through slot (11) and extends to the outside.

4. A road pavement hollowing detection device according to claim 1, characterized in that: The striking drive assembly (3) comprises a first driving wheel (31), a first driven wheel (32) and a first driver for driving the first driving wheel (31) to rotate; the first driving wheel (31) is arranged on one side of the first driven wheel (32); a transmission rod (33) is connected to the first driven wheel (32); and the striking hammer (4) is fixed to an end of the transmission rod (33) away from the first driven wheel (32).

5. A road pavement hollowing detection device according to claim 4, characterized in that: The knocking drive assembly (3) further comprises an elastic member (34), one end of the elastic member (34) being fixedly connected to the support seat (2), and the other end of the elastic member (34) being fixedly connected to the transmission rod (33), the elastic member (34) being configured as a structure capable of driving the knocking hammer (4) to reset when the first driving wheel (31) releases the driving force on the first driven wheel (32), and the first driving wheel (31) is a half gear.

6. A road pavement hollowing detection device according to claim 5, characterized in that: A box body (12) is arranged on the support seat (2), the knocking drive assembly (3) is accommodated in the box body (12), a third through slot (13) is opened on the box body (12), and the transmission rod (33) is slidably arranged in the third through slot (13).

7. A road pavement hollowing detection device according to claim 6, characterized in that: A sliding shell (14) is arranged in the box body (12), and the elastic member (34) comprises an arc spring arranged in the sliding shell (14), one end of the arc spring is fixed to the inner wall of the sliding shell (14), and the other end is connected to the sliding block (15), the sliding block (15) is arranged in cooperation with the sliding shell (14), and the transmission rod (33) is fixedly connected to the sliding block (15).

8. The road pavement hollowing detection device according to claim 1, characterized in that: The rotary drive assembly (5) comprises a second driving wheel (51), a third driving wheel (52) and a second driven wheel (53); the second driving wheel (51) and the third driving wheel (52) are both sector gears and mesh with the second driven wheel (53); the rotary drive assembly (5) further comprises a second driver for driving the second driving wheel (51) and the third driving wheel (52) to rotate, so as to form a structure capable of driving the second driven wheel (53) to reciprocate within a certain range.

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