Bridge crack ultrasonic detection equipment

Abstract

The invention discloses bridge crack ultrasonic detection equipment, and relates to the technical field of bridge crack ultrasonic detection, the bridge crack ultrasonic detection equipment comprises a shell, the upper surface of the shell is fixedly connected with a placing rack, the lower end surface of the shell is fixedly connected with a gasket, and the upper end surface of a fixed plate I is fixedly connected with a numerical value conversion module; a display device is fixedly connected to the upper end face of the shell, a detection probe is fixedly connected to the side face of the display device, the sweeping assembly is arranged on the shell and used for sweeping dust at the bridge crack detection position, and the switching assembly is arranged in the shell and used for adjusting the detection device to be in a coupling agent spraying state after dust sweeping. And the spraying assembly is arranged in the shell, is used for spraying a coupling agent and is in transmission connection with the cleaning assembly, so that the coupling agent is sprayed more uniformly, the problem that preparation work before detection consumes much time is solved, and the effects that the surface of the detected ground can be cleaned and coated with the coupling agent before detection, and the detection efficiency is improved are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of ultrasonic detection of bridge cracks, and in particular to ultrasonic detection equipment for bridge cracks. Background Art

[0002] Bridges are buildings built on rivers, lakes and seas to allow vehicles and pedestrians to pass smoothly. Bridge inspection devices play a decisive role in the safety of bridge inspection personnel, the impact on engineering cycles and traffic. Traditional bridge surface inspection methods are mostly carried out by the public with handheld inspection instruments. This inspection method is time-consuming and laborious, and cracks on the side walls of the guardrails and the bottom of the bridge require workers to hang outside the bridge for inspection, which brings great safety hazards to workers.

[0003] At present, the commonly used methods for bridge crack detection mainly include: photographic detection method, which is mainly used to check cracks on the surface of concrete bridges; impact elastic wave method, which generally refers to the waves transmitted in the elastic body as elastic waves, and uses artificially transmitted waves into the elastic body to explore the transmission status of the waves in the elastic body; ultrasonic detection. The ultrasonic method is mainly used for non-destructive inspection. It is a method of obtaining internal information of an object with ultrasonic waves as the front. It grasps the depth of cracks on the surface of concrete bridges, which is of great significance for durability diagnosis and research on repair and reinforcement countermeasures. To measure the crack depth, the transmitting probe and the receiving probe are placed near the crack on the same plane, and the crack depth is calculated by software based on the received waveform type and acoustic parameters.

[0004] Since a large amount of dust will adhere to the surface of the bridge during long-term use, this dust will affect the accuracy of ultrasonic detection. In order to improve the detection accuracy, the surface of the bridge needs to be cleaned before detection, and coupling agent needs to be evenly applied to the detection surface before detection. These preparatory works before detection are very time-consuming and reduce the efficiency of detection. Therefore, a device is needed to clean the inspection surface and apply coupling agent before detection to assist in ultrasonic detection of bridge cracks. Summary of the invention

[0005] The purpose of the present invention is to provide an ultrasonic detection device for bridge cracks, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: an ultrasonic bridge crack detection device, comprising a housing, a placement frame is fixedly connected to the upper surface of the housing, a gasket is fixedly connected to the lower end surface of the housing, and the ultrasonic bridge crack detection device also includes: A cleaning component, the cleaning component is arranged on the housing, and the cleaning component is used to clean dust at the bridge crack detection location; A switching component, the switching component is arranged in the housing, and the switching component is used to adjust the detection device to a state of spraying coupling agent after cleaning the dust; A spraying assembly is arranged in the shell, and is used for spraying the coupling agent, and is transmission-connected with the cleaning assembly so that the coupling agent is sprayed more evenly.

[0007] Optionally, the cleaning component includes: A rotating column one, the surface of which rotates and penetrates the inner wall of the shell, a rotating column one is provided with a penetrating slot on the end surface outside the shell, the slot wall of the slot is rotatably connected with a connecting plate one, the end surface of the connecting plate one is fixedly connected with a brush block, a penetrating slot is provided on the surface of the connecting end of the rotating column one and the connecting plate one, the slot wall of the slot is rotatably connected with a rotating shaft one, the surface of the rotating shaft one is fixedly connected to the slot wall of the connecting plate one with the slot, the rotating column one is also fixedly connected to the shell two on the end surface outside the shell, a motor one is provided on the inner wall of the shell two, and the output end of the motor one is fixedly connected to the end surface of the rotating shaft one.

[0008] Optionally, the switching component includes: A fixing plate 1, wherein the side surface of the fixing plate 1 is fixedly connected to the inner wall of the housing, the upper end surface of the fixing plate 1 is fixedly connected to a mounting frame 1, the surface of the mounting frame 1 is fixedly connected to a motor 2, the output end of the motor 2 is fixedly connected to a rotating shaft 2, and the end surface of the rotating shaft 2 away from the motor 2 is fixedly connected to a gear ring 1; A sliding plate, wherein the upper end surface of the sliding plate is provided with a penetrating rounded rectangular tooth groove, the tooth surface of the gear ring is meshed and connected with the tooth surface of the rounded rectangular tooth groove, the side surface of the sliding plate is slidably connected with a sliding frame, the upper end surface of the sliding frame is slidably connected with the lower end surface of the fixed plate, the upper end surface of the sliding frame is fixedly connected with a sliding column, the upper end surface of the fixed plate is provided with a penetrating sliding groove, the groove wall of the sliding groove is slidably connected with the surface of the sliding column, the upper end surface of the sliding column is fixedly connected with a limiting plate, and the lower end surface of the limiting plate is slidably connected with the upper end surface of the fixed plate.

[0009] Optionally, the switching component further includes: A connecting frame, the surface of which is fixedly connected to the lower end surface of the sliding plate, the end surface of the connecting frame away from the sliding plate is fixedly connected to a spur gear row, the tooth surface of the spur gear row is meshingly connected to a gear, a spline groove is provided on the end surface at the center of the circle of the gear, a spline rod is slidably connected to the groove wall of the spline groove, the end surface of the spline rod is fixedly connected to the surface of the rotating column, a baffle plate is also fixedly connected to the side surface of the spur gear row, and the surface of the baffle plate is slidably connected to the end surface of the gear.

[0010] Optionally, the spraying assembly includes: A rounded rectangular block, the upper end surface of the rounded rectangular block is fixedly connected to the lower end surface of the fixed plate one, the sliding plate one is fixedly connected to a fixed plate two facing the end surface of the rounded rectangular block, the surface of the fixed plate two slides through the inner wall of the sliding frame one, and the fixed plate two is fixedly connected to a sliding column two facing the end surface of the fixed plate one, the surface of the sliding column two is slidably connected to the surface of the rounded rectangular block, the upper end surface of the fixed plate one is also provided with a penetrating sliding groove two, the groove wall of the sliding groove two is slidably connected to a sliding column three, the surface of the sliding column three is also slidably connected to the surface of the rounded rectangular block, and the upper end surface of the sliding column three is fixedly connected to the fixed plate three.

[0011] Optionally, the spraying assembly further includes: A sliding block 1, the surface of which is slidably connected to the groove wall of the sliding groove 2, and the surface of which is also in contact with the surface of the sliding column 3. A spring 1 is fixedly connected to the surface of the sliding block 1 facing away from the sliding column 3, and the end surface of the spring 1 away from the sliding block 1 is fixedly connected to the inner wall of the sliding groove 2.

[0012] Optionally, the spraying assembly further includes: A piston, wherein the rod end surface of the piston is fixedly connected to the end surface of the fixed plate three, the sheet end surface of the piston is slidably connected to a container one, and the outer surface of the container one is fixedly connected to the upper end surface of the fixed plate one; A one-way valve, wherein the outlet end of the one-way valve is fixedly connected to the interior of the container, the inlet end of the one-way valve is fixedly connected to a fixed pipe, the end of the fixed pipe away from the one-way valve is fixedly connected to a coupling agent box, the lower end surface of the coupling agent box is fixedly connected to the upper end surface of the fixed plate, and the upper end surface of the coupling agent box is also fixedly connected to a feed port; A one-way valve 2, wherein the inlet end of the one-way valve 2 is fixedly connected to the bottom of the container 1, the outlet end of the one-way valve 2 is fixedly connected to a fixed pipe 2, the end of the fixed pipe 2 away from the one-way valve 2 is fixedly connected to a hose, the end surface of the hose away from the fixed pipe 2 is fixedly connected to a nozzle row, and the surface of the nozzle row is fixedly connected to the end surface of the connecting plate 1 facing away from the brush block.

[0013] Optionally, a numerical conversion module is fixedly connected to the upper end surface of the fixing plate 1, a display device is fixedly connected to the upper end surface of the housing, and a detection probe is fixedly connected to the side surface of the display device.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention drives the connecting plate 1 to swing around the rotating shaft 1, thereby driving the brush block to brush the surface of the bridge, thereby cleaning the dust on the surface of the bridge, eliminating the step of manual cleaning, reducing the influence of dust on ultrasonic detection, and making the detection result more accurate.

[0015] 2. The present invention drives the rotating column to rotate by moving the sliding plate 1, so that the connecting plate 1 is turned over, the brush block faces upward and the nozzle row faces downward, so as to complete the function switching of the ultrasonic crack detection equipment for bridges. Automatic switching is achieved through mechanical operation, which reduces the programming difficulty of the ultrasonic crack detection equipment for bridges, and further improves the degree of automation of the device through automation, making the preparation work before detection simpler and more efficient.

[0016] 3. The present invention transports the coupling agent from the coupling agent box to the nozzle row for spraying, thereby eliminating the manual application process and further improving the detection efficiency. When spraying the coupling agent, the coupling agent is also swung in conjunction with the connecting plate 1 to make the coupling agent spray over a wider range and more evenly, thereby improving the use effect of the coupling agent and making the ultrasonic detection more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the structure of the present invention; Figure 2 It is an enlarged view of the cleaning component structure of the present invention; Figure 3 A top view of the internal structure of the housing in the present invention; Figure 4 For the present invention Figure 3 A magnified view of the structure at inner A; Figure 5 It is a cross-sectional view of the structure inside the sliding groove of the present invention; Figure 6 A bottom view of a lower end structure of a fixed plate in the present invention; Figure 7 It is an enlarged view of the baffle one position structure in the present invention; Figure 8 It is a cross-sectional view of the internal structure of a container in the present invention.

[0018] In the figure: 1, shell; 2, shell 2; 3, connecting plate 1; 4, nozzle row; 5, brush block; 6, feed port; 7, detection probe; 8, placement rack; 9, display device; 10, gasket; 11, motor 1; 12, hose; 13, fixed pipe 2; 14, rotating shaft 1; 15, rotating column 1; 16, mounting rack 1; 17, motor 2; 18, numerical conversion module; 19, coupling agent box; 20, baffle 1; 21, container 1; 22, limit plate; 23, piston; 24, fixed plate 1; 25 , fixed plate three; 26, sliding groove one; 27, fixed pipe one; 28, one-way valve one; 29, one-way valve two; 30, sliding frame one; 31, sliding column one; 32, rotating shaft two; 33, rounded rectangular block; 34, sliding column three; 35, fixed plate two; 36, sliding column two; 37, sliding block one; 38, sliding plate one; 39, rounded rectangular tooth groove; 40, spline rod; 41, gear ring one; 42, connecting frame one; 43, straight tooth row one; 44, gear one; 45, spring one; 46, sliding groove two. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] For example, see Figures 1 to 8 The present embodiment provides an ultrasonic detection device for bridge cracks, including a shell 1, a placement frame 8 is fixedly connected to the upper surface of the shell 1, a gasket 10 is fixedly connected to the lower end surface of the shell 1, a numerical conversion module 18 is fixedly connected to the upper end surface of a fixing plate 24, a display device 9 is fixedly connected to the upper end surface of the shell 1, and a detection probe 7 is fixedly connected to the side of the display device 9.

[0021] The detection probe 7 is taken out and placed in the detection area of ​​the bridge coated with the coupling agent. The detection probe 7 then emits ultrasonic waves. After passing through the surface of the bridge, the ultrasonic waves will reflect ripples to the numerical conversion module 18. The display device 9 then displays the data processed by the numerical conversion module 18 in the form of ripples. If the ripples on the display device 9 are abnormal, it means that there are cracks in the bridge.

[0022] The ultrasonic detection device also includes a cleaning component, which is arranged on the housing 1 and includes: A rotating column 15, the surface of which rotates through the inner wall of the outer shell 1, a through slot is provided on the end surface of the rotating column 15 outside the outer shell 1, the slot wall of the slot is rotatably connected with a connecting plate 3, the end surface of the connecting plate 3 is fixedly connected with a brush block 5, a through slot is provided on the surface of the connecting end of the rotating column 15 and the connecting plate 3, the slot wall of the slot is rotatably connected with a rotating shaft 14, the surface of the rotating shaft 14 is fixedly connected with the slot wall of the connecting plate 3 with the slot, the end surface of the rotating column 15 outside the outer shell 1 is also fixedly connected with the outer shell 2, the inner wall of the outer shell 2 is provided with a motor 11, and the output end of the motor 11 is fixedly connected with the end surface of the rotating shaft 14.

[0023] In this embodiment, the device is placed on the surface to be tested on the bridge, and then the motor 11 is started to drive the rotating shaft 14 to rotate forward and reverse, and further drive the connecting plate 3 to swing around the rotating shaft 14, thereby driving the brush block 5 to brush the surface of the bridge and clean the dust on the surface of the bridge.

[0024] The setting of the cleaning component drives the connecting plate 3 to swing around the rotating shaft 14, thereby driving the brush block 5 to brush the surface of the bridge, thereby cleaning the dust on the surface of the bridge, eliminating the step of manual cleaning, reducing the influence of dust on ultrasonic detection, and making the detection result more accurate.

[0025] It is worth noting that, in this embodiment, the ultrasonic detection device further includes a switching component, and the switching component is disposed in the housing 1 .

[0026] The switching components include: A fixing plate 24, the side of which is fixedly connected to the inner wall of the housing 1, the upper end surface of the fixing plate 24 is fixedly connected to a mounting frame 16, the surface of the mounting frame 16 is fixedly connected to a motor 2 17, the output end of the motor 17 is fixedly connected to a rotating shaft 2 32, and the end surface of the rotating shaft 32 away from the motor 17 is fixedly connected to a gear ring 1 41.

[0027] A sliding plate 38 is provided on the upper end surface of the sliding plate 38 with a penetrating rounded rectangular tooth groove 39, the tooth surface of the tooth ring 41 is meshed with the tooth surface of the rounded rectangular tooth groove 39, the side of the sliding plate 38 is slidably connected with a sliding frame 30, the upper end surface of the sliding frame 30 is slidably connected with the lower end surface of the fixed plate 24, the upper end surface of the sliding frame 30 is fixedly connected with a sliding column 31, the upper end surface of the fixed plate 24 is provided with a penetrating sliding groove 26, the groove wall of the sliding groove 26 is slidably connected with the surface of the sliding column 31, the upper end surface of the sliding column 31 is fixedly connected with a limiting plate 22, and the lower end surface of the limiting plate 22 is slidably connected with the upper end surface of the fixed plate 24.

[0028] A connecting frame 42, the surface of which is fixedly connected to the lower end surface of the sliding plate 38, a straight tooth row 43 is fixedly connected to the end surface of the connecting frame 42 away from the sliding plate 38, the tooth surface of the straight tooth row 43 is meshingly connected to a gear 44, a spline groove is provided on the end surface at the center of the circle of the gear 44, a spline rod 40 is slidably connected to the groove wall of the spline groove, the end surface of the spline rod 40 is fixedly connected to the surface of the rotating column 15, a baffle plate 20 is also fixedly connected to the side surface of the straight tooth row 43, and the surface of the baffle plate 20 is slidably connected to the end surface of the gear 44.

[0029] In this embodiment, after the motor 11 is started to drive the brush block 5 to brush the surface of the bridge, the motor 2 17 is started to drive the rotating shaft 2 32 to rotate, and the rotating shaft 2 32 rotates to drive the gear ring 1 41 to slide in the rounded rectangular tooth groove 39 on the sliding plate 1 38, and under the limiting effect of the sliding frame 1 30, the movement of the sliding plate 1 38 can be decomposed into the following three situations: First, when the gear ring 1 41 rotates in the arc-shaped tooth groove on the left side of the rounded rectangular tooth groove 39, it will further drive the sliding plate 1 38 to move towards the direction close to the rounded rectangular block 33; Second, when the tooth ring 1 41 rotates in the straight-edge tooth groove of the rounded rectangular tooth groove 39, it will further drive the sliding plate 1 38 to move left and right, and drive the sliding frame 1 30 to move left and right; Thirdly, when the gear ring 1 41 rotates in the right arc tooth groove of the rounded rectangular tooth groove 39, it will further drive the sliding plate 1 38 to move away from the rounded rectangular block 33; It further drives the straight tooth row 43 to move, thereby driving the gear 44 to rotate. When the gear 44 rotates, the motor 11 stops working, thereby driving the spline rod 40 to rotate, causing the rotating column 15 to rotate, driving the connecting plate 3 to turn over, so that the brush block 5 faces upward and the nozzle row 4 faces downward.

[0030] The setting of the switching component drives the rotating column 15 to rotate through the movement of the sliding plate 38, so that the connecting plate 3 is turned over, the brush block 5 faces upward and the nozzle row 4 faces downward, so as to complete the function switching of the ultrasonic crack detection equipment for bridges. Automatic switching is achieved through mechanical operation, which reduces the programming difficulty of the ultrasonic crack detection equipment for bridges, and further improves the degree of automation of the device through automation, making the preparation work before detection simpler and more efficient.

[0031] Embodiment 2, based on the above embodiment: See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 8 The ultrasonic detection equipment also includes a spraying component, which is arranged in the shell 1 and is transmission-connected with the cleaning component.

[0032] The spray kit includes: A rounded rectangular block 33, the upper end surface of the rounded rectangular block 33 is fixedly connected to the lower end surface of the fixed plate 24, the sliding plate 1 38 is fixedly connected to a fixed plate 2 35 facing the end surface of the rounded rectangular block 33, the surface of the fixed plate 2 35 slides through the inner wall of the sliding frame 30, and the fixed plate 2 35 is fixedly connected to a sliding column 2 36 facing the end surface of the fixed plate 1 24, the surface of the sliding column 2 36 is slidably connected to the surface of the rounded rectangular block 33, the upper end surface of the fixed plate 1 24 is also provided with a penetrating sliding groove 2 46, the groove wall of the sliding groove 2 46 is slidably connected to a sliding column 3 34, the surface of the sliding column 34 is also slidably connected to the surface of the rounded rectangular block 33, and the upper end surface of the sliding column 3 34 is fixedly connected to the fixed plate 3 25.

[0033] Sliding block 1 37, the surface of sliding block 1 37 is slidably connected to the groove wall of sliding groove 2 46, the surface of sliding block 1 37 also abuts against the surface of sliding column 3 34, the surface of sliding block 1 37 facing away from sliding column 34 is fixedly connected with spring 1 45, and the end surface of spring 1 45 away from sliding block 1 37 is fixedly connected to the inner wall of sliding groove 2 46.

[0034] The piston 23, the rod end surface of the piston 23 is fixedly connected to the end surface of the fixed plate 25, the plate end surface of the piston 23 is slidably connected to the container 21, and the outer surface of the container 21 is fixedly connected to the upper end surface of the fixed plate 24.

[0035] A one-way valve 28, the outlet end of the one-way valve 28 is fixedly connected to the interior of the container 21, the inlet end of the one-way valve 28 is fixedly connected to a fixed pipe 27, the end of the fixed pipe 27 away from the one-way valve 28 is fixedly connected to a coupling agent box 19, the lower end surface of the coupling agent box 19 is fixedly connected to the upper end surface of the fixed plate 24, and the upper end surface of the coupling agent box 19 is also fixedly connected to a feed port 6.

[0036] A one-way valve 29, the inlet end of the one-way valve 29 is fixedly connected to the bottom of the container 1 21, the outlet end of the one-way valve 29 is fixedly connected to a fixed pipe 2 13, the end of the fixed pipe 13 away from the one-way valve 29 is fixedly connected to a hose 12, the end surface of the hose 12 away from the fixed pipe 13 is fixedly connected to a nozzle row 4, and the surface of the nozzle row 4 is fixedly connected to the end face of the connecting plate 3 facing away from the brush block 5.

[0037] In this embodiment, during the movement of the sliding plate 1 38, the sliding column 2 36 will be further driven to move around the rounded rectangular block 33. When the sliding column 2 36 contacts the sliding column 3 34, the sliding column 3 34 will be pushed to slide in the sliding groove 2 46 and squeeze the spring 1 45. While pushing the sliding column 34 to move, the piston 23 will be driven to slide in the container 1 21. In combination with the one-way valve 1 28 and the one-way valve 2 29, the coupling agent can be transported from the coupling agent box 19 to the nozzle row 4 for spraying. After spraying, the sliding column 2 36 will go around the other straight side of the rounded rectangular block 33, thereby pushing the piston 23 to restore its position under the action of the spring 1 45. In addition, since the nozzle row 4 is arranged on the connecting plate 1 3, the swing of the connecting plate 1 3 can also be coordinated to make the coupling agent spray over a wider range and spray more evenly.

[0038] The arrangement of the spraying assembly allows the coupling agent to be transported from the coupling agent box 19 to the nozzle row 4 for spraying, thereby eliminating the manual application process and further improving the efficiency of detection. When spraying the coupling agent, the swing of the connecting plate 3 is also coordinated to make the coupling agent spray over a wider range and spray more evenly, thereby improving the use effect of the coupling agent and making ultrasonic detection more accurate.

[0039] Working principle: When using this bridge crack ultrasonic detection equipment, there are the following steps: S1: Place the device on the surface to be tested on the bridge, and add a sufficient amount of coupling agent into the coupling agent box 19; S2: starting the motor 11 to drive the rotating shaft 14 to rotate forward and reversely, further driving the connecting plate 3 to swing around the rotating shaft 14, thereby driving the brush block 5 to brush the surface of the bridge; S3: After starting the motor 11 to drive the brush block 5 to brush the surface of the bridge, starting the motor 2 17 to drive the rotating shaft 2 32 to rotate, driving the gear 1 44 to rotate indirectly forward and reverse, and setting the motor 11 to stop when the gear 1 44 rotates; S4: After the brush block 5 has brushed the bridge for a period of time, the switching assembly drives the connecting plate 1 3 to turn over, so that the brush block 5 faces upward and the nozzle row 4 faces downward, and the sliding column 2 36 moves around the rounded rectangular block 33, pushing the sliding column 3 34 to move, which drives the piston 23 to slide in the container 1 21, and cooperates with the one-way valve 1 28 and the one-way valve 2 29 to transport the coupling agent from the coupling agent box 19 to the nozzle row 4 for spraying. While spraying, the motor 11 continues to drive the connecting plate 3 to swing; S5: Finally, after the coating is completed, the detection probe 7 is taken out and placed in the bridge detection area coated with the coupling agent. The detection probe 7 then emits ultrasonic waves. After passing through the bridge surface, the ultrasonic waves will reflect ripples to the numerical conversion module 18. The display device 9 then displays the data processed by the numerical conversion module 18 in the form of ripples. If the ripples on the display device 9 are abnormal, it means that there are cracks in the bridge.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic bridge crack detection device, comprising a housing (1), characterized in that: The upper surface of the housing (1) is also fixedly connected to a placement frame (8), and the lower end surface of the housing (1) is fixedly connected to a gasket (10). The ultrasonic detection device further comprises: A cleaning component, the cleaning component being arranged on the housing (1) and being used to clean dust at a bridge crack detection location; A switching component, the switching component is arranged in the housing (1) and is used to adjust the state of spraying coupling agent after cleaning the dust, the switching component comprising a fixing plate 1 (24), the side surface of the fixing plate 1 (24) being fixedly connected to the inner wall of the housing (1); A spraying assembly, the spraying assembly being arranged in the housing (1), used for spraying the coupling agent, and being in driving connection with the cleaning assembly; The upper end surface of the fixing plate 1 (24) is also fixedly connected to a numerical conversion module (18), the upper end surface of the housing (1) is fixedly connected to a display device (9), and the side surface of the display device (9) is fixedly connected to a detection probe (7).

2. The bridge crack ultrasonic detection device according to claim 1, characterized in that: The cleaning assembly comprises: A rotating column (15), the surface of which rotates through the inner wall of the housing (1), the surface of which is located outside the housing (1) is provided with a through slot, the slot wall of which is rotatably connected to a connecting plate (3), the end surface of which is fixedly connected to a brush block (5), the surface of the connecting end of which is located between the rotating column (15) and the connecting plate (3) is provided with a through slot, the slot wall of which is rotatably connected to a rotating shaft (14), the surface of which is fixedly connected to the slot wall of which is provided with the slot of the connecting plate (3), the end surface of which is located outside the housing (1) is also fixedly connected to the housing (2), the inner wall of which is provided with a motor (11), the output end of which is fixedly connected to the end surface of the rotating shaft (14).

3. The bridge crack ultrasonic detection device according to claim 2 is characterized by: The upper end surface of the fixing plate 1 (24) is fixedly connected to the mounting frame 1 (16), the surface of the mounting frame 1 (16) is fixedly connected to the motor 2 (17), the output end of the motor 2 (17) is fixedly connected to the rotating shaft 2 (32), and the end surface of the rotating shaft 2 (32) away from the motor 2 (17) is fixedly connected to the gear ring 1 (41); A sliding plate (38), wherein the upper end surface of the sliding plate (38) is provided with a through rounded rectangular tooth groove (39), the tooth surface of the tooth ring (41) is meshed with the tooth surface of the rounded rectangular tooth groove (39), the side surface of the sliding plate (38) is slidably connected with a sliding frame (30), the upper end surface of the sliding frame (30) is slidably connected with the lower end surface of the fixed plate (24), the upper end surface of the sliding frame (30) is fixedly connected with a sliding column (31), the upper end surface of the fixed plate (24) is provided with a through sliding groove (26), the groove wall of the sliding groove (26) is slidably connected with the surface of the sliding column (31), the upper end surface of the sliding column (31) is fixedly connected with a limiting plate (22), and the lower end surface of the limiting plate (22) is slidably connected with the upper end surface of the fixed plate (24); The switching component also includes: A connecting frame (42), the surface of the connecting frame (42) is fixedly connected to the lower end surface of the sliding plate (38), the end surface of the connecting frame (42) away from the sliding plate (38) is fixedly connected to a spur gear row (43), the tooth surface of the spur gear row (43) is meshingly connected to a gear (44), a spline groove is provided on the end surface at the center of the circle of the gear (44), the groove wall of the spline groove is slidably connected to a spline rod (40), the end surface of the spline rod (40) is fixedly connected to the surface of the rotating column (15), and the side surface of the spur gear row (43) is also fixedly connected to a baffle plate (20), and the surface of the baffle plate (20) is slidably connected to the end surface of the gear (44).

4. The bridge crack ultrasonic detection device according to claim 3 is characterized by: The spraying assembly comprises: A rounded rectangular block (33), the upper end surface of the rounded rectangular block (33) is fixedly connected to the lower end surface of the fixed plate 1 (24), the sliding plate 1 (38) is fixedly connected to a fixed plate 2 (35) facing the end surface of the rounded rectangular block (33), the surface of the fixed plate 2 (35) slides through the inner wall of the sliding frame 1 (30), and the fixed plate 2 (35) is fixedly connected to a sliding column 2 (36) facing the end surface of the fixed plate 1 (24), the surface of the sliding column 2 (36) is slidably connected to the surface of the rounded rectangular block (33), the upper end surface of the fixed plate 1 (24) is also provided with a penetrating sliding groove 2 (46), the groove wall of the sliding groove 2 (46) is slidably connected to a sliding column 3 (34), the surface of the sliding column 3 (34) is also slidably connected to the surface of the rounded rectangular block (33), and the upper end surface of the sliding column 3 (34) is fixedly connected to the fixed plate 3 (25); A sliding block (37), the surface of which is slidably connected to the groove wall of the sliding groove (46), the surface of which is also in contact with the surface of the sliding column (34), the surface of which is away from the sliding column (34) is fixedly connected to a spring (45), the end surface of which is away from the sliding block (37) is fixedly connected to the inner wall of the sliding groove (46).

5. The bridge crack ultrasonic detection device according to claim 4 is characterized by: The spraying assembly further comprises a piston (23), a first one-way valve (28) and a second one-way valve (29).

6. The bridge crack ultrasonic detection device according to claim 5, characterized in that: The rod end surface of the piston (23) is fixedly connected to the end surface of the fixed plate three (25), the plate end surface of the piston (23) is slidably connected to the container one (21), and the outer surface of the container one (21) is fixedly connected to the upper end surface of the fixed plate one (24).

7. The bridge crack ultrasonic detection device according to claim 6, characterized in that: The outlet end of the one-way valve (28) is fixedly connected to the interior of the container (21); the inlet end of the one-way valve (28) is fixedly connected to a fixed pipe (27); the end of the fixed pipe (27) away from the one-way valve (28) is fixedly connected to a coupling agent box (19); the lower end surface of the coupling agent box (19) is fixedly connected to the upper end surface of the fixed plate (24); and the upper end surface of the coupling agent box (19) is also fixedly connected to a feed port (6).

8. The bridge crack ultrasonic detection device according to claim 7, characterized in that: The inlet end of the one-way valve 2 (29) is fixedly connected to the bottom of the container 1 (21), and the outlet end of the one-way valve 2 (29) is fixedly connected to the fixed pipe 2 (13). The end of the fixed pipe 2 (13) away from the one-way valve 2 (29) is fixedly connected to the hose (12). The surface of the end of the hose (12) away from the fixed pipe 2 (13) is fixedly connected to the nozzle row (4). The surface of the nozzle row (4) is fixedly connected to the end surface of the connecting plate 1 (3) away from the brush block (5).

Images