Crack measuring equipment for geological disaster monitoring

Abstract

The invention relates to the technical field of geological disaster monitoring, in particular to crack measuring equipment for geological disaster monitoring, which comprises a fixed plate, a moving unit, a measuring unit and a guiding unit. The two ultrasonic probes are located at the equidistant positions of the two sides of the crack through the centering set, the moving distances of the two ultrasonic probes are equal each time through the moving set, and the problem that the measuring precision is reduced due to the fact that the moving distances of the two ultrasonic probes are not equal is solved; through cooperation between a push rod in a push group and a spring V, after a push plate pushes one of two ultrasonic probes to contact with the side wall, the other ultrasonic probe continues to move towards the side wall, and the moving distance is compensated through the spring V, so that the push group pushes the two ultrasonic probes to be tightly attached to the side wall of concrete; the problem that the two ultrasonic probes cannot cling to the side wall of the concrete at the same time due to the non-coplanar planes on the two sides of the crack, so that the error of the measurement result is increased is solved.

Description

Technical Field

[0001] The invention relates to the technical field of geological disaster monitoring, in particular to a crack measuring device for geological disaster monitoring. Background Art

[0002] After a geological disaster occurs, it is very important to measure the crack depth of damaged buildings and infrastructure. These measurement results are used to assess the safety and structural stability of the buildings. The existing measurement of crack depth on concrete buildings usually uses ultrasonic probes, in which the ultrasonic probe needs to use the flat measurement method when measuring the crack depth. The flat measurement method utilizes the propagation characteristics of ultrasonic waves in concrete and the influence of cracks on ultrasonic signals. When ultrasonic waves propagate in uniform concrete, their speed and path are predictable. However, when ultrasonic waves encounter cracks, the air in the cracks has different acoustic impedance relative to the concrete, which will cause the ultrasonic waves to be reflected and refracted at the cracks, thereby affecting the propagation time, intensity and path of the ultrasonic waves.

[0003] In the existing measurement process of the crack depth on the side wall, the staff is required to mark the crack-free area on the concrete on both sides of the crack, and then the staff holds an ultrasonic probe coated with a coupling agent and places two ultrasonic probes at the marked positions on both sides of the crack. After measuring a set of data, the two ultrasonic probes on both sides of the crack are moved synchronously, and the two ultrasonic probes on both sides of the crack are moved at the same distance relative to the crack. After multiple movement measurements at the same height, it is necessary to re-mark the concrete at different heights on both sides of the crack, and then repeat the measurement multiple times to infer the depth of the crack through the collected data.

[0004] The above-mentioned process of measuring the depth of cracks on the side wall has the following shortcomings: in the method in which the staff holds two ultrasonic probes, it is easy for the two ultrasonic probes on both sides of the crack to move unequal distances relative to the crack, causing the placement positions of the two ultrasonic probes on both sides of the crack to deviate from the marked positions on the concrete, thereby reducing the accuracy of the measurement results; secondly, before each measurement, it is necessary to mark the concrete on both sides of the crack, and the overall operation is relatively cumbersome. Summary of the invention

[0005] Based on this, it is necessary to provide a crack measurement device for geological disaster monitoring, aiming to solve the above technical problems.

[0006] The present application provides a crack measuring device for geological disaster monitoring, including: a fixed plate, a push plate is fixedly provided on the left end face of the fixed plate, two sliding columns symmetrically distributed up and down are slidably penetrated on the push plate, a bracket plate is fixedly provided on the left end faces of the two sliding columns, a spring 1 mounted on the sliding column is fixedly provided between the bracket plate and the push plate, a sliding groove is provided on the bracket plate, a sliding plate is provided in the sliding groove for sliding up and down, the sliding plate is driven to move up and down by an electric slider, a sliding block is provided on the sliding plate for sliding left and right sliding, two placement plates symmetrically distributed up and down are fixedly provided on the left end face of the sliding block through a vertical bar, and a tightening plate is fixedly provided on the left end faces of the two placement plates.

[0007] A moving unit is provided on the right end face of the fixed plate, and the moving unit is an existing moving device including a driving wheel. A measuring unit is provided on the clamping plate and the sliding plate, and the measuring unit includes a sliding groove. Two sliding grooves symmetrically distributed front and back are provided on the clamping plate, and a sliding bar is provided in the sliding groove for sliding. A pushing rod is provided on the sliding bar for sliding, and ultrasonic probes are fixedly provided on the left end faces of the two pushing rods. A moving group is provided between the two sliding bars, and a limiting group for limiting the sliding bar is provided on the right end face of the clamping plate, and a pushing group is provided on the sliding plate.

[0008] A guide unit is provided on the left end face of the clamping plate, and the guide unit includes a fixing rod. The left end face of the clamping plate is fixedly provided with the fixing rod, and the left end face of the fixing rod is slidably provided with a rectangular plate through a rectangular block. The rectangular plate is provided with a guiding group for guiding the movement of the clamping plate, and the fixing rod is provided with a centering group for adjusting the left and right positions of the ultrasonic probe.

[0009] According to a favorable embodiment, the guide group includes a rectangular groove, four rectangular grooves are opened on the rectangular plate, support bars are hinged in the rectangular grooves through rotating columns, a torsion spring mounted on the rotating column is fixed between the support bar and the inner wall of the corresponding rectangular groove, and a roller is arranged on the side of the support bar away from the rectangular plate through a rotating rod.

[0010] According to a favorable embodiment, the centering group includes a fixed block, a fixed sleeve on the fixed rod is provided with a fixed block located between the rectangular plate and the clamping plate, the upper and lower end faces of the fixed block are fixedly provided with vertical rods, a horizontal bar is slidably provided on the vertical rod, two springs provided on the vertical rod are commonly fixed between the horizontal bar and the fixed block, two front-and-rear symmetrical connecting strips are hinged on the horizontal bar, the two upper and lower opposite connecting strips are commonly hinged with a horizontal rod, and a section of the horizontal rod close to the rectangular plate is provided with a second roller.

[0011] According to a preferred embodiment, the back faces of the two placement plates are each provided with two front-to-back symmetrical moving grooves, the shape of the moving groove is a right triangle, and the inclined sections of the two moving grooves on the same placement plate are respectively facing the front and back sides, and the inclined sections of the two front and back relatively moving grooves are close to each other from left to right, and three inclined surfaces are provided on the lower inner wall of the moving groove, and the moving groove is divided into a transverse section, an inclined section and a longitudinal section by the three inclined surfaces, and a U-shaped bar with an opening facing the right side is slidably provided in the moving groove through a vertical column, a connecting plate located in the opening area of ​​the U-shaped bar is fixedly provided on the placement plate, a connecting rod is slidably penetrated on the connecting plate, the connecting rod is slidably connected to the U-shaped bar through a moving block 1, a spring 3 mounted on the corresponding connecting rod is fixedly provided between the moving block 1 and the rectangular plate, and a moving bar is slidably provided on the back faces of the two placement plates, and the moving bar is located between the two U-shaped bars, and a moving block 2 is slidably provided on the opposite surfaces of the left and right relatively U-shaped bars, and a pushing bar is hinged between the moving block 2 and the corresponding moving bar.

[0012] According to a favorable embodiment, the pushing group includes a pushing column, and the sliding plate slides through two pushing columns symmetrically distributed front and back, a circular plate 1 is fixedly provided on the right end face of the pushing column, a spring 4 mounted on the corresponding pushing column is fixedly provided between the circular plate 1 and the sliding plate, a transverse plate is fixedly provided on the left end face of the pushing column, a moving block 3 is slidably provided on the transverse plate, the moving block 3 is slidably mounted on the pushing rod, a circular plate 2 located on the left side of the transverse plate is fixedly mounted on the pushing rod, and a spring 5 mounted on the corresponding pushing rod is fixedly provided between the circular plate 2 and the corresponding moving block 3.

[0013] According to a favorable embodiment, the moving group includes a transmission shaft, a transmission shaft is rotatably provided on the right end face of the clamping plate, a gear is fixedly sleeved on the transmission shaft, a rack meshing with the gear is fixedly provided on the sliding bar through a connecting block, and a T-shaped plate is fixedly provided on the front end face of the sliding bar on the front side.

[0014] According to a favorable embodiment, the limiting group includes a placement groove, a plurality of equally distributed placement grooves are provided on the right end face of the clamping plate, and the placement groove is connected with the sliding groove on the rear side, a positioning strip is slidably arranged in the placement groove, and the positioning strip is divided into an isosceles triangle segment and a strip segment from top to bottom, a spring six is ​​fixedly arranged between the positioning strip and the lower inner wall of the placement groove, a push groove is provided in the strip segment of the positioning strip, and the push groove is a right-angled trapezoid with an inclined surface facing upward, and the inclined surface of the push groove is inclined upward from left to right, a plurality of transmission rods are fixedly arranged on the left end face of the rear horizontal plate, and the transmission rods correspond one-to-one to the placement grooves, and a plurality of through holes corresponding one-to-one to the transmission rods are provided on the clamping plate.

[0015] According to a preferred embodiment, a plurality of equidistantly distributed positioning grooves are provided on the inner walls on both sides of the front and rear of the slide groove, a plurality of cylindrical grooves are provided on the sliding plate on both sides of the front and rear of the sliding plate, a positioning column is slidably arranged in the cylindrical groove, and the end surface of the positioning column close to the positioning groove is a spherical surface, and a spring seven is fixedly arranged between the positioning column and the inner wall of the cylindrical groove.

[0016] In summary, the present invention includes at least one of the following beneficial effects: First, in the present invention, the two ultrasonic probes are located at equidistant positions on both sides of the crack through the centering group, and the two ultrasonic probes are moved the same distance each time through the moving group, thereby avoiding the problem of reduced measurement accuracy caused by unequal moving distances of the two ultrasonic probes, and simplifying the operation steps of crack depth measurement. Secondly, the two ultrasonic probes are pushed to the side wall through the pushing group, thereby avoiding the problem of increased error in the measurement result due to the non-coplanarity of the planes on both sides of the crack.

[0017] 2. In the present invention, the left and right positions of the measuring unit are adjusted by the cooperation between the two rollers in the centering group, so that the two ultrasonic probes are always located on both sides of the crack, and the distances between the two ultrasonic probes and the crack are equal. Then, the two ultrasonic probes are moved equidistantly through the cooperation between the moving group and the limiting group, avoiding the problem of reduced measurement accuracy caused by unequal moving distances of the two ultrasonic probes.

[0018] 3. In the present invention, the push rod in the push group cooperates with the spring five, so that after the push plate pushes one of the two ultrasonic probes to contact the side wall, the other ultrasonic probe continues to move toward the side wall, and the moving distance is compensated by the spring five, so that the push group pushes the two ultrasonic probes to be close to the concrete side wall, avoiding the problem of increased error in the measurement result caused by the non-coplanarity of the two sides of the crack. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 A front view of a crack measuring device for geological disaster monitoring provided according to an embodiment of the present invention is shown.

[0021] Figure 2 A left side view of a guide unit provided according to an embodiment of the present invention is shown.

[0022] Figure 3 A partial cross-sectional view of the three-dimensional structure of a support plate, a guide group and a rectangular plate provided according to an embodiment of the present invention is shown.

[0023] Figure 4 The embodiment of the present invention provides Figure 3 A magnified view of the structure in the middle.

[0024] Figure 5 A schematic diagram of the three-dimensional structure of a clamping plate, a transverse plate and a limiting group provided according to an embodiment of the present invention is shown.

[0025] Figure 6 A schematic diagram of the three-dimensional structure of a U-shaped bar, a rectangular plate and a vertical rod provided according to an embodiment of the present invention is shown.

[0026] Figure 7 A partial cross-sectional view of a three-dimensional structure of a placement plate, a rectangular plate and a connecting strip provided according to an embodiment of the present invention is shown.

[0027] Figure 8 A partial cross-sectional view of the three-dimensional structure of a push column, a vertical rod and abutment plate provided according to an embodiment of the present invention is shown.

[0028] Fig. 9 A partial cross-sectional view of the three-dimensional structure of a moving groove, a U-shaped bar and a connecting rod provided according to an embodiment of the present invention is shown.

[0029] The above drawings include the following reference numerals:

[0030] 1. Fixed plate; 10. Push plate; 100. Sliding column; 101. Spring 1; 11. Bracket plate; 110. Sliding groove; 111. Sliding plate; 112. Sliding block; 113. Placement plate; 114. Clamping plate; 2. Moving unit; 3. Measuring unit; 30. Sliding groove; 31. Sliding bar; 32. Push rod; 33. Moving group; 330. Transmission shaft; 331. Gear; 332. Rack; 333. T-shaped plate; 34. Limiting group; 340. Positioning bar; 341. Spring 6; 342. Push groove; 343. Transmission rod; 35. Push group; 350. Push column; 351. Spring 4; 352. Transverse plate; 353. Moving block 3; 354 , spring five; 36, positioning groove; 360, positioning column; 361, spring seven; 4, guide unit; 40, fixed rod; 41, rectangular plate; 42, guide group; 420, support bar; 421, torsion spring; 422, roller one; 423, rectangular groove; 43, centering group; 430, fixed block; 431, vertical rod; 432, horizontal bar; 433, spring two; 434, horizontal rod; 435, roller two; 436, connecting bar; 44, moving groove; 440, U-shaped bar; 441, connecting rod; 442, moving block one; 443, spring three; 444, moving bar; 445, moving block two; 446, horizontal section; 447, inclined section; 448 longitudinal section. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, a crack measuring device for geological disaster monitoring comprises: a fixed plate 1, a push plate 10 is fixedly provided on the left end surface of the fixed plate 1, two sliding columns 100 symmetrically distributed up and down are slidably penetrated on the push plate 10, a bracket plate 11 is fixedly provided on the left end surfaces of the two sliding columns 100, a spring 101 sleeved on the sliding column 100 is fixedly provided between the bracket plate 11 and the push plate 10, a slide groove 110 is provided on the bracket plate 11, a sliding plate 111 is provided in the slide groove 110 for sliding up and down, the sliding plate 111 is driven up and down by an electric slider, a sliding block 112 is provided on the sliding plate 111 for sliding left and right, two placement plates 113 symmetrically distributed up and down are fixedly provided on the left end surface of the sliding block 112 through a vertical bar, and a tightening plate 114 is fixedly provided on the left end surfaces of the two placement plates 113.

[0033] like Figure 1 , Figure 3 and Figure 5 As shown, a moving unit 2 is provided on the right end face of the fixed plate 1, and the moving unit 2 is an existing moving device including a driving wheel. A measuring unit 3 is provided on the clamping plate 114 and the sliding plate 111, and the measuring unit 3 includes a sliding groove 30. Two sliding grooves 30 symmetrically distributed front and back are penetrated through the clamping plate 114, and a sliding bar 31 is slidably provided in the sliding groove 30. A pushing rod 32 is slidably penetrated on the sliding bar 31, and ultrasonic probes are fixedly provided on the left end faces of the two pushing rods 32. A moving group 33 is provided between the two sliding bars 31, and a limiting group 34 for limiting the sliding bar 31 is provided on the right end face of the clamping plate 114, and a pushing group 35 is provided on the sliding plate 111.

[0034] like Figure 2 , Figure 3 and Figure 6 As shown, the left end face of the clamping plate 114 is provided with a guide unit 4, and the guide unit 4 includes a fixed rod 40. The left end face of the clamping plate 114 is fixedly provided with the fixed rod 40, and the left end face of the fixed rod 40 is slidably provided with a rectangular plate 41 through a rectangular block, and the rectangular plate 41 is provided with a guide group 42 for guiding the movement of the clamping plate 114, and the fixed rod 40 is provided with a centering group 43 for adjusting the left and right positions of the ultrasonic probe.

[0035] During operation, the moving unit 2 pushes the pushing plate 10 to move to the left through the fixed plate 1, and the pushing plate 10 pushes the bracket plate 11 to move synchronously through the spring 101, and the bracket plate 11 drives the placement plate 113 to move synchronously through the sliding plate 111, and the placement plate 113 drives the guide unit 4 to move to the left synchronously through the clamping plate 114 until the guide unit 4 extends into the crack on the side wall, and the centering group 43 works to adjust the position of the clamping plate 114 in the left and right directions so that the crack is located in the middle position between the two ultrasonic probes, and then the moving unit 2 continues to push the pushing plate 10 to move to the left, and the pushing plate 10 continues to move to make the pushing group 35 work, and the pushing group 35 pushes the two ultrasonic probes coated with The ultrasonic probe of the coupling agent moves to the left until it is close to the concrete side wall. After the measurement is completed, the mobile unit 2 moves backward until the two ultrasonic probes are out of contact with the side wall. Then the moving group 33 works to push the two ultrasonic probes away from each other, and limits the positions of the two ultrasonic probes through the limiting group 34. Then the mobile unit 2 continues to push the two ultrasonic probes close to the side wall. Then the above steps are repeated to perform multiple measurements on both sides of the crack. After completing the measurement of the crack at the same horizontal position, the mobile unit 2 moves backward, and the electric slider works to push the sliding plate 111 downward. At the same time, the guiding group 42 works to drive the centering group 43 to move downward along the crack. Then the above steps are repeated to measure the crack depth.

[0036] like Figure 3 , Figure 6 and Figure 8 As shown, the guide group 42 includes a rectangular groove 423, four rectangular grooves 423 are opened on the rectangular plate 41, a support bar 420 is hinged in the rectangular groove 423 through a rotating column, a torsion spring 421 mounted on the rotating column is fixed between the support bar 420 and the inner wall of the corresponding rectangular groove 423, and a roller 422 is rotatably arranged on the side of the support bar 420 away from the rectangular plate 41 through a rotating rod.

[0037] like Figure 3 , Figure 6 and Figure 8 As shown, the centering group 43 includes a fixed block 430, and the fixed rod 40 is fixedly sleeved with a fixed block 430 located between the rectangular plate 41 and the clamping plate 114, and the upper and lower end surfaces of the fixed block 430 are fixedly provided with a vertical rod 431, and a horizontal bar 432 is slidably sleeved on the vertical rod 431, and a second spring 433 sleeved on the vertical rod 431 is fixedly provided between the horizontal bar 432 and the fixed block 430, and two front-to-back symmetrical connecting bars 436 are hinged on the horizontal bar 432, and a horizontal rod 434 is hinged on the two upper and lower opposite connecting bars 436, and a section of the horizontal rod 434 close to the rectangular plate 41 is rotatably sleeved with a second roller 435.

[0038] like Figure 3 and Fig. 9 As shown, two rear surfaces of the two placement plates 113 are provided with two front-to-back symmetrical moving grooves 44, the moving grooves 44 are in the shape of a right triangle, and the inclined sections of the two moving grooves 44 on the same placement plate 113 face the front and back sides respectively, and the inclined sections of the two front-to-back moving grooves 44 approach each other from left to right, the lower inner wall of the moving groove 44 is provided with three inclined surfaces, and the moving groove 44 is divided into a transverse section 446, an inclined section 447 and a longitudinal section 448 by the three inclined surfaces, a U-shaped bar 440 with an opening facing the right side is slidably provided in the moving groove 44 through a vertical column, and a fixed plate 113 is provided at A connecting plate in the opening area of ​​the U-shaped bar 440 has a connecting rod 441 slidingly penetrated thereon, and the connecting rod 441 is slidably connected to the U-shaped bar 440 through a moving block 1 442, and a spring 3 443 mounted on the corresponding connecting rod 441 is fixedly arranged between the moving block 1 442 and the rectangular plate 41, and moving bars 444 are slidably arranged on the opposite back surfaces of the two placement plates 113, and the moving bar 444 is located between the two U-shaped bars 440, and moving blocks 2 445 are slidably arranged on the opposite surfaces of the left and right relative U-shaped bars 440, and a pushing bar is hinged between the moving block 2 445 and the corresponding moving bar 444.

[0039] In the initial state, the vertical column is located in the transverse section 446 of the moving groove 44, and the U-shaped bar 440 is pressed against the supporting bar 420 and the connecting bar 436 on the corresponding side, so that the corresponding torsion spring 421 and the spring 2 433 are stretched and deformed (see Figure 7 ), when working, the moving unit 2 pushes the pushing plate 10 to move to the left through the fixed plate 1, and the pushing plate 10 pushes the bracket plate 11 to move synchronously through the spring 101, and the bracket plate 11 drives the placement plate 113 to move synchronously through the sliding plate 111, and the U-shaped bar 440 moves to the left synchronously with the placement plate 113. After the U-shaped bar 440 contacts the concrete side walls on both sides of the crack, the U-shaped bar 440 stops moving relative to the concrete side walls on both sides of the crack, while the placement plate 113 and the clamping plate 114 continue to move to the left, and the spring three 443 is compressed and deformed, and the clamping plate 114 drives the guide group 42 and the centering group 43 to continue to move. After the support bar 420 moves to disengage from the U-shaped bar 440, the elastic force generated by the deformation of the torsion spring 421 pushes the support bar 420 to rotate, and the support bar 420 rotates until the roller 1 422 contacts the inner wall of the crack and stops rotating.

[0040] The placement plate 113 continues to move to the left until the U-shaped strips 440 are all moved to be out of contact with the corresponding connecting strips 436 (see Figure 6), the elastic force generated by the deformation of the spring 2 433 pulls the horizontal bar 432 to move towards the fixed block 430, so that the connecting bar 436 pushes the horizontal rods 434 away from each other, and the horizontal rod 434 drives the roller 2 435 to move synchronously until the roller 2 435 moves to the inner wall of the crack and stops moving, and the position of the fixed rod 40 is centered through the cooperation between the two rollers 435, so that the fixed rod 40 is located in the middle of the crack, and the fixing rod 40 drives the clamping plate 114 and the measuring unit 3 arranged on the clamping plate 114 to move synchronously, so that the two ultrasonic probes are respectively located on both sides of the crack, and the distance between the two ultrasonic probes and the crack is equal, and then the placement plate 113 continues to move to the left until the vertical column moves into the inclined section 447 of the movable groove 44.

[0041] During the subsequent resetting process, the moving unit 2 moves backward, causing the sliding plate 111 to drive the placement plate 113 to move backward. During the backward movement of the placement plate 113, the elastic force generated by the deformation of the spring three 443 acts on the U-shaped bar 440, causing the U-shaped bar 440 to move to the left relative to the placement plate 113, and through the cooperation between the vertical column and the inclined section 447 of the moving groove 44, the two U-shaped bars 440 on the same placement plate 113 move away from each other until the U-shaped bar 440 drives the vertical column to move into the longitudinal section 448 of the moving groove 44.

[0042] like Figure 3 , Figure 5 and Fig. 9 As shown, the pushing group 35 includes a pushing column 350, and two pushing columns 350 symmetrically distributed front and back are slidably penetrated on the sliding plate 111, a circular plate 1 is fixedly provided on the right end surface of the pushing column 350, and a spring 4 351 sleeved on the corresponding pushing column 350 is fixedly provided between the circular plate 1 and the sliding plate 111, and a transverse plate 352 is fixedly provided on the left end surface of the pushing column 350, and a moving block 3 353 is slidably provided on the transverse plate 352, and the moving block 3 353 is slidably sleeved on the pushing rod 32, and a circular plate 2 located on the left side of the transverse plate 352 is fixedly sleeved on the pushing rod 32, and a spring 5 354 sleeved on the corresponding pushing rod 32 is fixedly provided between the circular plate 2 and the corresponding moving block 3 353.

[0043] like Figure 3 and Figure 5 As shown, the moving group 33 includes a transmission shaft 330, and the right end face of the clamping plate 114 is rotatably provided with the transmission shaft 330, the transmission shaft 330 is connected to the motor, and a gear 331 is fixedly sleeved on the transmission shaft 330. A rack 332 meshing with the gear 331 is fixedly provided on the sliding bar 31 through a connecting block, and a T-shaped plate 333 is fixedly provided on the front end face of the sliding bar 31 on the front side.

[0044] like Figure 3 and Figure 8 As shown, the limiting group 34 includes a placement groove, a plurality of equally distributed placement grooves are provided on the right end face of the clamping plate 114, and the placement groove is connected to the sliding groove 30 on the rear side, a positioning bar 340 is slidably arranged in the placement groove, and the positioning bar 340 is divided into an isosceles triangle segment and a strip segment from top to bottom, a spring 6 341 is fixedly arranged between the positioning bar 340 and the lower inner wall of the placement groove, a push groove 342 is provided in the strip segment of the positioning bar 340, and the push groove 342 is a right-angled trapezoid with an inclined surface facing upward, and the inclined surface of the push groove 342 is inclined upward from left to right, a plurality of transmission rods 343 are fixedly arranged on the left end face of the rear side transverse plate 352, and the transmission rods 343 correspond to the placement grooves one by one, and a plurality of through holes corresponding to the transmission rods 343 are provided on the clamping plate 114.

[0045] During operation, after the centering group 43 completes the guiding and limiting of the two ultrasonic probes, the moving unit 2 continues to push the pushing plate 10 to move to the left through the fixed plate 1, and the spring 1 101 is continuously compressed and deformed until the pushing plate 10 moves to contact the circular plate 1. The pushing plate 10 pushes the pushing column 350 to move to the left through the circular plate 1, and the spring 4 351 is compressed and deformed. The pushing column 350 pushes the moving block 3 353 to move synchronously to the left through the transverse plate 352. The moving block 353 drives the pushing rod 32 to move to the left through the spring 5 354. The pushing rod 32 drives the two ultrasonic probes to move to the left. After one of the two ultrasonic probes contacts the side wall, the corresponding spring 5 354 is continuously compressed and deformed until the two ultrasonic probes are both close to the side wall. After measuring the data, the moving unit 2 moves backward until the two ultrasonic probes are moved to be out of contact with the side wall.

[0046] After the two ultrasonic probes are moved to be out of contact with the side wall, the external motor works to drive the gear 331 to rotate through the transmission shaft 330, and the two racks 332 are moved away from each other through the meshing between the gear 331 and the rack 332. After the sliding bar 31 moves to contact the isosceles triangle segment of the corresponding positioning bar 340, the positioning bar 340 is pushed downward into the positioning groove 36 through the cooperation between the sliding bar 31 and the inclined surface of the isosceles triangle segment of the positioning bar 340, and the spring six 341 is compressed and deformed. The sliding bar 31 moves between two adjacent positioning bars 340 and stops moving. The compressed and deformed spring six 341 pushes the corresponding The positioning bar 340 moves upward to reset, then the moving unit 2 moves to the right, and the rear horizontal plate 352 moves to the left, driving the transmission rod 343 to move synchronously to the left. After the transmission rod 343 moves to contact the inclined surface of the pushing groove 342, the transmission rod 343 cooperates with the inclined surface of the pushing groove 342 to make the transmission rod 343 push the positioning bar 340 to move upward, and the spring six 341 is stretched and deformed, and the positioning bar 340 moves to the bar section and contacts the sliding bar 31. The position of the sliding bar 31 is limited by the positioning bars 340 on both sides of the sliding bar 31 to prevent the sliding bar 31 from moving during the process of pushing the two ultrasonic probes close to the side wall.

[0047] After completing the measurement, when the mobile unit 2 moves backward, the rear horizontal plate 352 drives the transmission rod 343 to move to the right until it is out of contact with the push slot 342. The elastic force generated by the deformation of the spring six 341 pulls the corresponding positioning bar 340 to move downward and reset. Then, the above steps are repeated to perform multiple measurements at the same horizontal height on both sides of the crack.

[0048] like Figure 3 and Figure 4 As shown, a plurality of equidistantly distributed positioning grooves 36 are provided on the inner walls on both sides of the front and rear of the slide groove 110, and a plurality of cylindrical grooves are provided on the sliding plate 111 on both sides of the front and rear of the sliding plate 111, and a positioning column 360 is slidably arranged in the cylindrical groove, and the end surface of the positioning column 360 close to the positioning groove 36 is a spherical surface, and a spring 361 is fixedly arranged between the positioning column 360 and the inner wall of the cylindrical groove.

[0049] When the cam 360 is in the engagement with the guide assembly 42, the guide assembly 42 drives the centering assembly 43 to move downward along the crack, and the sliding plate 111 moves downward until the cam 360 is engaged with the guide assembly 42 and stops moving.

[0050] After completing multiple measurements, the moving unit 2 drives the guiding unit 4 to move out of contact with the crack, and the external motor drives the gear 331 to rotate through the transmission shaft 330. The two racks 332 are brought close to each other through the meshing between the gear 331 and the rack 332, and the rack 332 drives the T-shaped plate 333 to move synchronously. After the T-shaped plate 333 moves to contact with the U-shaped bar 440, the T-shaped plate 333 pushes the two front U-shaped bars 440 to move backward, and the two front and rear opposite U-shaped bars 440 are brought close to each other through the cooperation between the moving bar 444 and the pushing bar on the moving block 2 445 until the vertical column moves into the horizontal section 446 of the moving groove 44. During the process of the U-shaped bars 440 approaching each other, the U-shaped bars 440 push the guiding group 42 and the centering group 43 to reset.

[0051] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0052] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A crack measurement device for geological disaster monitoring, characterized in that: include: A fixed plate (1), a push plate (10) is fixedly arranged on the left end surface of the fixed plate (1), two sliding columns (100) are slidably penetrated on the push plate (10), a bracket plate (11) is fixedly arranged on the left end surfaces of the two sliding columns (100), a spring (101) sleeved on the sliding column (100) is fixedly arranged between the bracket plate (11) and the push plate (10), a sliding groove (110) is provided on the bracket plate (11), a sliding plate (111) is slidably arranged in the sliding groove (110), the sliding plate (111) is driven to move up and down by an electric slider, a sliding block (112) is slidably arranged on the sliding plate (111), two placement plates (113) symmetrically distributed up and down are fixedly arranged on the left end surface of the sliding block (112) through a vertical bar, and a pressing plate (114) is fixedly arranged on the left end surfaces of the two placement plates (113); The right end surface of the fixed plate (1) is provided with a moving unit (2), the moving unit (2) is an existing moving device including a driving wheel, the abutting plate (114) and the sliding plate (111) are provided with a measuring unit (3), the measuring unit (3) comprises a sliding groove (30), two sliding grooves (30) symmetrically distributed front and back are provided through the abutting plate (114), a sliding bar (31) is slidably provided in the sliding groove (30), a pushing rod (32) is slidably provided on the sliding bar (31), an ultrasonic probe is fixedly provided on the left end surface of the pushing rod (32), a moving group (33) is provided between the two sliding bars (31), a limiting group (34) for limiting the sliding bar (31) is provided on the right end surface of the abutting plate (114), and a pushing group (35) for pushing the pushing rod (32) to move is provided on the sliding plate (111); The left end face of the abutting plate (114) is provided with a guide unit (4), and the guide unit (4) comprises a fixed rod (40). The left end face of the abutting plate (114) is fixedly provided with the fixed rod (40), and the left end face of the fixed rod (40) is provided with a rectangular plate (41) slidably provided through a rectangular block, and a guide group (42) for guiding the movement of the abutting plate (114) is provided on the rectangular plate (41), and a centering group (43) for adjusting the left and right positions of the ultrasonic probe is provided on the fixed rod (40).

2. A crack measurement device for geological disaster monitoring according to claim 1, characterized in that: The guide group (42) comprises a rectangular groove (423), four rectangular grooves (423) are provided on the rectangular plate (41), a support bar (420) is hinged in the rectangular groove (423) via a rotating column, a torsion spring (421) sleeved on the rotating column is fixedly arranged between the support bar (420) and the inner wall of the corresponding rectangular groove (423), and a roller (422) is rotatably arranged on the side of the support bar (420) away from the rectangular plate (41) via a rotating rod.

3. The crack measurement device for geological disaster monitoring according to claim 1, characterized in that: The centering group (43) comprises a fixed block (430), a fixed block (430) located between the rectangular plate (41) and the abutting plate (114) is fixedly sleeved on the fixed rod (40), a vertical rod (431) is fixedly arranged on the upper and lower end surfaces of the fixed block (430), a horizontal bar (432) is slidably sleeved on the vertical rod (431), a second spring (433) sleeved on the vertical rod (431) is fixedly arranged between the horizontal bar (432) and the fixed block (430), two front-to-back symmetrical connecting bars (436) are hinged on the horizontal bar (432), a horizontal rod (434) is hinged on the two upper and lower opposite connecting bars (436), and a second roller (435) is rotatably sleeved on a section of the horizontal rod (434) close to the rectangular plate (41).

4. The crack measurement device for geological disaster monitoring according to claim 1, characterized in that: The opposite sides of the two placement plates (113) are provided with two front-to-back symmetrical moving grooves (44), the moving grooves (44) are in the shape of a right triangle, and the inclined sections of the two moving grooves (44) on the same placement plate (113) are respectively oriented to the front and back sides, and the inclined sections of the two front-to-back moving grooves (44) are close to each other from left to right, the lower inner wall of the moving groove (44) is provided with three inclined surfaces, and the moving groove (44) is divided into a transverse section (446), an inclined section (447) and a longitudinal section (448) by the three inclined surfaces, a U-shaped bar (440) with an opening facing the right side is slidably provided in the moving groove (44) through a vertical column, and a fixedly provided U-shaped bar (440) is located on the U-shaped bar (446) on the placement plate (113). A connecting plate in the opening area of ​​440) is provided, and a connecting rod (441) is slidably penetrated through the connecting plate. The connecting rod (441) is slidably connected to the U-shaped bar (440) through a moving block (442). A spring (443) sleeved on the corresponding connecting rod (441) is fixedly arranged between the moving block (442) and the rectangular plate (41). Moving bars (444) are slidably arranged on the opposite back surfaces of the two placement plates (113), and the moving bars (444) are located between the two U-shaped bars (440). Moving blocks (445) are slidably arranged on the opposite surfaces of the left and right U-shaped bars (440). A push bar is hinged between the moving block (445) and the corresponding moving bar (444).

5. The crack measurement device for geological disaster monitoring according to claim 1, characterized in that: The pushing group (35) comprises a pushing column (350), and two pushing columns (350) symmetrically distributed front and back are slidably penetrated on the sliding plate (111), a circular plate 1 is fixedly provided on the right end surface of the pushing column (350), a spring 4 (351) sleeved on the corresponding pushing column (350) is fixedly provided between the circular plate 1 and the sliding plate (111), a transverse plate (352) is fixedly provided on the left end surface of the pushing column (350), a moving block 3 (353) is slidably provided on the transverse plate (352), the moving block 3 (353) is slidably sleeved on the pushing rod (32), a circular plate 2 located on the left side of the transverse plate (352) is fixedly sleeved on the pushing rod (32), and a spring 5 (354) sleeved on the corresponding pushing rod (32) is fixedly provided between the circular plate 2 and the corresponding moving block 3 (353).

6. The crack measurement device for geological disaster monitoring according to claim 1, characterized in that: The moving group (33) comprises a transmission shaft (330), the right end surface of the abutting plate (114) is rotatably provided with the transmission shaft (330), a gear (331) is fixedly sleeved on the transmission shaft (330), a rack (332) meshing with the gear (331) is fixedly provided on the sliding bar (31) via a connecting block, and a T-shaped plate (333) is fixedly provided on the front end surface of the sliding bar (31) on the front side.

7. A crack measurement device for geological disaster monitoring according to claim 6, characterized in that: The limiting group (34) comprises a placement groove, a plurality of placement grooves distributed at equal intervals are provided on the right end surface of the abutting plate (114), and the placement groove is connected with the sliding groove (30) on the rear side, a positioning strip (340) is slidably provided in the placement groove, and the positioning strip (340) is divided into an isosceles triangle section and a strip section from top to bottom, a spring six (341) is fixedly provided between the positioning strip (340) and the lower inner wall of the placement groove, a pushing groove (342) is provided in the strip section of the positioning strip (340), and the pushing groove (342) is a right-angled trapezoid with an inclined surface facing upward, and the inclined surface of the pushing groove (342) is inclined upward from left to right, a plurality of transmission rods (343) are fixedly provided on the left end surface of the rear side transverse plate (352), and the transmission rods (343) correspond to the placement grooves one by one, and a plurality of through holes corresponding to the transmission rods (343) are provided on the abutting plate (114).

8. The crack measurement device for geological disaster monitoring according to claim 1, characterized in that: The inner walls on both the front and rear sides of the slide groove (110) are provided with a plurality of equidistantly distributed positioning grooves (36), the sliding plate (111) is provided with a plurality of cylindrical grooves respectively located on the front and rear sides of the sliding plate (111), a positioning column (360) is slidably arranged in the cylindrical groove, and the end surface of the positioning column (360) close to the positioning groove (36) is a spherical surface, and a spring seven (361) is fixedly arranged between the positioning column (360) and the inner wall of the cylindrical groove.

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