Bridge crack measuring device for bridge engineering

Abstract

The invention discloses a bridge crack measuring device for bridge engineering, and belongs to the technical field of bridge maintenance equipment.The bridge crack measuring device is ventilated through an air pump, a moving pipe is pushed, a rotating pipe at the end of the moving pipe is moved to the middle of a cleaning cavity, and wind blades arranged in the rotating pipe drive the rotating pipe to rotate in the gas passing process; a brush on the outer side of the rotating pipe rotates; the device is buckled at the position of a crack to be detected through the shell seat, the cleaning cavity is located at the position of the crack, the crack in the cleaning cavity is cleaned through ventilation of the air pump, impurities on the crack are swept away, after sweeping is completed, ventilation of the air pump is stopped, the brush stops rotating, the rotating pipe and the moving pipe retract and return to the original position under the tension of the spring, and at the moment, the close-range detection camera is moved downwards. The close-range detection camera can be attached to the crack to carry out crack imaging; according to the device, various impurities on the crack can be swept through the brush, so that the problems of unclear effect and inaccurate measurement caused by the impurities during video measurement are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge maintenance equipment, and in particular relates to a bridge crack measuring device used in bridge engineering. Background Art

[0002] The bridge crack measuring device is a device specially used to detect bridge cracks. Its main purpose is to evaluate the structural safety and health of the bridge. The presence of bridge cracks may affect the stability and bearing capacity of the bridge. Therefore, it is very important to accurately measure and monitor the bridge cracks.

[0003] The existing bridge measurement device is mainly composed of a close-range detection camera and a display. When measuring cracks, the close-range detection camera contacts the crack position, displays the crack through the display, and realizes the statistics of the crack width through the display screen and the measurement function of the display; however, when measuring the crack width, there are often various impurities attached to the crack, such as dust, sand, and colloid. These impurities will cause the measurement data to be smaller when measuring the width through video. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a bridge crack measuring device for bridge engineering, which can quickly clean impurities in cracks to be measured by adding a structure for removing impurities in cracks to facilitate obtaining accurate crack data.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] The present invention includes a close-range detection camera, a display and a shell seat, wherein a cleaning cavity is provided on the bottom side of the shell seat, the close-range detection camera is vertically movable above the cleaning cavity, an impurity sweeping portion is also provided in the shell seat, the impurity sweeping portion includes a first fixed tube fixed in the shell seat, a moving tube is slidably provided at one end of the first fixed tube, a retaining ring is provided on the outer side of the end of the moving tube, the outer diameter of the retaining ring is equal to the inner diameter of the first fixed tube, the outer diameter of the moving tube is smaller than the inner diameter of the first fixed tube, a spring is provided between the retaining ring and the end of the first fixed tube, a rotating tube is provided at the other end of the moving tube for coaxial rotation, and the rotating tube A plurality of wind paddles are arranged on the inner side of the tube, a brush is arranged around the outer side of the rotating tube, and an air pump is also included. The air pump is connected to the first fixed tube. When the shell seat is buckled on the crack to be detected, the air pump is ventilated, and the gas pushes the baffle ring, the moving tube overcomes the spring movement, and the rotating tube brush moves to the bottom of the close-range detection camera. The gas blows the wind paddles, the rotating tube rotates, and the brush cleans the crack. When the gas is not ventilated, the rotating tube stops rotating, and the rotating tube is pressed away from the bottom of the close-range detection camera by the spring, and the close-range detection camera is vertically moved to make the close-range detection camera contact the crack.

[0007] Furthermore, it also includes a second fixed tube, which is fixed in the shell seat, and is located at the opposite side of the cleaning chamber where the first fixed tube is set, and the second fixed tube is coaxial with the rotating tube. When the rotating tube overcomes the spring and moves to the cleaning position, the rotating tube is connected with the second fixed tube, and the second fixed tube bends downward and then toward the cleaning chamber. The outlet of the second fixed tube is reduced, and the outlet of the second fixed tube is toward the bottom side of the cleaning chamber. The bottom side of the shell seat is also provided with an impurity outlet connecting the outside and the cleaning chamber.

[0008] Further, it also includes a first passive valve, the first passive valve includes a vertical pipe connected between the first fixed pipe and the air pump, the first fixed pipe is connected to the side of the vertical pipe, a first closing column is vertically slidably provided in the vertical pipe, a curved gas channel is provided in the first closing column, a counter-pin is connected to the lower end of the first closing column, the counter-pin passes through the bottom side of the shell seat, a spring is supported between the first closing column and the bottom end of the vertical pipe, when the shell seat is buckled in the crack position, the counter-pin is compressed and retracted, and the gas channel of the first closing column is connected to the first fixed pipe and the air pump, and also includes a second passive valve, the second passive valve includes a horizontal pipe connected between the vertical pipe and the air pump, and a second closing column is horizontally slidably provided in the horizontal pipe A closed column, a gas passage connected up and down is provided in the second closed column, a connecting column is connected to the end of the second closed column, the connecting column extends horizontally to the side of the close-range detection camera, a spring is provided between the other end of the second closed column and the end of the horizontal tube, a vertical stop block is provided on the side of the close-range detection camera, the lower end of the vertical stop block is inclined, when the close-range detection camera does not enter the cleaning chamber, the vertical stop block does not contact the connecting column, the gas passage on the second closed column is connected to the air pump and the vertical pipe, when the close-range detection camera moves downward and moves along the vertical stop block, the second closed column moves under pressure, and the second closed column closes the air pump and the vertical pipe.

[0009] Furthermore, a visual positioning strip is provided on the shell base, and the visual positioning strip is located outside the middle of the cleaning cabin, and the visual positioning strip is used to indicate the cleaning position of the brush.

[0010] Furthermore, the shell base is also provided with a handle for easy holding.

[0011] The beneficial effects of the present invention are:

[0012] The present invention is provided with an impurity cleaning part, through the ventilation of the air pump, the gas enters the first fixed tube, pushes the retaining ring on the moving tube, overcomes the pulling force of the spring, moves the moving tube, and the rotating tube at the end of the moving tube is moved to the middle position of the cleaning chamber, that is, below the close-range detection camera, the wind blades arranged inside the rotating tube drive the rotating tube to rotate during the passage of the gas, and the brush outside the rotating tube rotates; the device is buckled at the position of the crack to be measured through the shell seat, the cleaning chamber is located at the crack position, and the crack in the cleaning chamber is cleaned by the ventilation of the air pump to remove the impurities on the crack. After the cleaning is completed, the air pump stops ventilation, the brush stops rotating, the rotating tube and the moving tube retract under the pulling force of the spring, and the close-range detection camera is moved down at this time, so that the close-range detection camera can be attached to the crack to perform crack imaging, and finally the crack data is measured through the display; the device can remove various impurities on the crack through the brush cleaning, avoiding the problem of unclear effect and inaccurate measurement caused by impurities during video measurement, and the device is simple to operate, easy to carry, and has a protective function for the close-range detection camera.

[0013] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0015] Figure 1 This is an overall schematic diagram of a bridge crack measurement device according to an embodiment of the present invention;

[0016] Figure 2 This is a cross-sectional view of the bridge crack measuring device before measurement according to an embodiment of the present invention;

[0017] Figure 3 This is a cross-sectional view of the bridge crack measuring device according to an embodiment of the present invention when it is buckled at the crack position;

[0018] Figure 4 This is a cross-sectional view of the bridge crack measuring device in the embodiment of the present invention during measurement;

[0019] The markings in the accompanying drawings are as follows: 1. Close-range detection camera; 11. Vertical block; 2. Display; 3. Shell seat; 31. Cleaning chamber; 32. Visual positioning strip; 33. Handle; 34. Impurity outlet; 41. First fixed pipe; 42. Moving pipe; 421. Block ring; 43. Rotating pipe; 431. Paddle; 432. Brush; 44. Second fixed pipe; 45. First passive valve; 451. Vertical pipe; 452. First closing column; 453. Offset; 46. Second passive valve; 461. Horizontal pipe; 462. Second closing column; 463. Connecting column; 5. Air pump. DETAILED DESCRIPTION

[0020] The present invention discloses a bridge crack measuring device for bridge engineering, referring to Figure 1 , including a close-range detection camera 1, a display 2 and a housing 3, wherein the bottom side of the housing 3 is provided with a cleaning cavity 31 with an opening facing downward, the close-range detection camera 1 is a columnar shape, the close-range detection camera 1 is vertically movable and arranged above the cleaning cavity 31, and the housing 3 is also provided with an impurity cleaning portion, reference Figure 2-Figure 4 The impurity removal part includes a first fixed tube 41 fixed in the shell seat 3, a moving tube 42 is slidably provided at one end of the first fixed tube 41, a retaining ring 421 is provided on the outer side of the end of the moving tube 42, the outer diameter of the retaining ring 421 is equal to the inner diameter of the first fixed tube 41, the outer diameter of the moving tube 42 is smaller than the inner diameter of the first fixed tube 41, a spring is supported between the retaining ring 421 and the end of the first fixed tube 41, a rotating tube 43 is coaxially rotated at the other end of the moving tube 42, a plurality of wind paddles 431 are provided on the inner side of the rotating tube 43, a brush 432 is provided around the outer side of the rotating tube 43, and an air pump 5 is also included. The air pump 5 is connected to the first fixed pipe 41. When the shell seat 3 is buckled on the crack to be detected, the air pump 5 is ventilated, and the gas pushes the baffle ring 421. The moving tube 42 overcomes the spring movement, and the brush 432 of the rotating tube 43 moves to the bottom of the close-range detection camera 1. The gas blows the wind paddles 431, the rotating tube 43 rotates, and the brush 432 cleans the crack. When the gas is not ventilated, the rotating tube 43 stops rotating. The rotating tube 43 is pressed away from the bottom of the close-range detection camera 1 by the spring, and the close-range detection camera 1 is moved vertically to make the close-range detection camera 1 contact the crack.

[0021] In this scheme, an impurity cleaning section is set, and ventilation is performed through the air pump 5. The gas enters the first fixed tube 41, pushes the retaining ring 421 on the mobile tube 42, overcomes the tension of the spring, and moves the mobile tube 42. The rotating tube 43 at the end of the mobile tube 42 is moved to the middle position of the cleaning chamber 31, that is, below the close-range detection camera 1. The wind paddles 431 arranged inside the rotating tube 43 drive the rotating tube 43 to rotate during the passage of gas, and the brush 432 on the outside of the rotating tube 43 rotates; this device is buckled at the position of the crack to be detected through the shell seat 3, and the cleaning chamber 31 is located at the crack position. The crack in the cleaning chamber 31 is cleaned by ventilation of the air pump 5. Cleaning is performed to remove impurities on the crack. After cleaning, the air pump 5 stops ventilation, the brush 432 stops rotating, and the rotating tube 43 and the moving tube 42 retract under the tension of the spring. At this time, the close-range detection camera 1 is moved down, and the close-range detection camera 1 can be attached to the crack to image the crack, and finally the crack data is measured through the display 2; this device can clean various impurities on the crack by cleaning with the brush 432, avoiding the problem of unclear effect and inaccurate measurement caused by impurities during video measurement. This device is simple to operate, easy to carry, and has a protective function for the close-range detection camera 1.

[0022] In a further solution, Figure 2 As shown, it also includes a second fixed tube 44, which is fixed in the shell seat 3. The second fixed tube 44 is located on the opposite side of the cleaning chamber 31 where the first fixed tube 41 is set. The second fixed tube 44 is coaxial with the rotating tube 43. When the rotating tube 43 overcomes the spring and moves to the cleaning position, the rotating tube 43 is connected with the second fixed tube 44. The second fixed tube 44 bends downward and then toward the cleaning chamber 31. The outlet of the second fixed tube 44 is reduced, and the outlet of the second fixed tube 44 is toward the bottom side of the cleaning chamber 31. The bottom side of the shell seat 3 is also provided with an impurity outlet 34 connecting the outside and the cleaning chamber 31.

[0023] In this scheme, by setting a second fixed pipe 44, when the rotating tube 43 is moved out and impurities are cleaned, the rotating tube 43 is connected with the second fixed pipe 44, and the gas in the second fixed pipe 44 flows into the second fixed pipe. Under the guidance and concentration of the second fixed pipe 44, the gas is sprayed toward the crack position to blow away the impurities at the crack position on the bottom side of the cleaning chamber 31. The impurity outlet 34 arranged on the bottom side of the shell seat 3 is blown out by the gas, so as to avoid excessive impurities from being retained in the cleaning chamber 31 and affecting the measurement effect. This device rationally utilizes the gas of the air pump 5 and further improves the impurity cleaning ability of this device.

[0024] In a further solution, Figure 2 , Figure 3 and Figure 4, further comprising a first passive valve 45, the first passive valve 45 comprising a vertical pipe 451 connected between the first fixed pipe 41 and the air pump 5, the first fixed pipe 41 being connected to the side of the vertical pipe 451, a first closing column 452 being vertically slidably provided in the vertical pipe 451, a curved gas passage being provided in the first closing column 452, a counter-pin 453 being connected to the lower end of the first closing column 452, the counter-pin 453 passing through the bottom side of the shell seat 3, a spring being supported between the first closing column 452 and the bottom end of the vertical pipe 451, when the shell seat 3 is buckled in the crack position, the counter-pin 453 is compressed and retracted, and the gas passage of the first closing column 452 is connected to the first fixed pipe 41 and the air pump 5, further comprising a second passive valve 46, the second passive valve 46 comprising a horizontal pipe 461 connected between the vertical pipe 451 and the air pump 5, a horizontally slidably provided in the horizontal pipe 461 There is a second closed column 462, and a gas channel connected up and down is provided in the second closed column 462. A connecting column 463 is connected to the end of the second closed column 462, and the connecting column 463 extends horizontally to the side of the close-range detection camera 1. A spring is supported between the other end of the second closed column 462 and the end of the cross tube 461. A vertical stop block 11 is provided on the side of the close-range detection camera 1, and the lower end of the vertical stop block 11 is inclined. When the close-range detection camera 1 does not enter the cleaning chamber 31, the vertical stop block 11 does not contact the connecting column 463. The gas channel on the second closed column 462 is connected to the air pump 5 and the vertical pipe 451. When the close-range detection camera 1 moves downward and moves along the vertical stop block 11, the second closed column 462 moves under pressure, and the second closed column 462 closes the air pump 5 and the vertical pipe 451.

[0025] refer to Figure 2 When the close-range detection camera 1 is retracted and the housing seat 3 is lifted up, the first passive valve 45 is closed, and the brush 432 is in a retracted and stopped state. Figure 3 When the close-range detection camera 1 is retracted and the housing seat 3 is buckled on the crack surface to be detected, the first passive valve 45 and the second passive valve 46 are connected, and the brush 432 extends and rotates, and impurities are removed from the crack at this time; Figure 4 When the close-range detection camera 1 moves down and the shell seat 3 is buckled on the crack surface to be measured, the second passive valve 46 is closed, and the brush 432 stops and is retracted. At this time, the close-range detection camera 1 is observed. In this scheme, the first passive valve 45 and the second passive valve 46 are opened and closed instantly with the observation operation to achieve cleaning of the cleaning chamber 31 and crack observation, improve operational convenience, improve observation efficiency, avoid interference between the brush 432 and the close-range detection camera 1, and protect the close-range detection camera 1.

[0026] In a further solution, Figure 1As shown, the shell base 3 is also provided with a visual positioning strip 32, and the visual positioning strip 32 is located on the outer side of the middle part of the cleaning cabin. The visual positioning strip 32 is used to indicate the cleaning position of the brush 432. By setting the visual positioning strip 32, the cleaning trajectory of the brush 432 can be roughly cleaned along the extension direction of the crack, thereby ensuring the effectiveness of the cleaning and facilitating the alignment of the crack and the close-range detection camera 1.

[0027] In a further solution, Figure 1 The shell base 3 is also provided with a handle 33 for easy holding.

[0028] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A bridge crack measuring device for bridge engineering, comprising a short-range detection camera (1) and a display (2), characterized in that: The invention comprises a housing (3), wherein a cleaning cavity (31) is provided at the bottom side of the housing (3), wherein the close-range detection camera (1) is arranged vertically movably above the cleaning cavity (31), wherein an impurity cleaning portion is also arranged in the housing (3), wherein the impurity cleaning portion comprises a first fixed tube (41) fixed in the housing (3), wherein a moving tube (42) is slidably provided at one end of the first fixed tube (41), wherein a retaining ring (421) is provided on the outer side of the end of the moving tube (42), wherein the outer diameter of the retaining ring (421) is equal to the inner diameter of the first fixed tube (41), wherein the outer diameter of the moving tube (42) is smaller than the inner diameter of the first fixed tube (41), wherein a spring is provided between the retaining ring (421) and the end of the first fixed tube (41), wherein a rotating tube (43) is provided at the other end of the moving tube (42) for coaxial rotation, wherein a plurality of paddles are provided on the inner side of the rotating tube (43). The rotating tube (43) further comprises an air pump (5), wherein the air pump (5) is connected to the first fixed tube (41). When the shell seat (3) is buckled on the crack to be detected, the air pump (5) is ventilated, and the gas pushes the retaining ring (421), the movable tube (42) overcomes the spring movement, and the brush (432) of the rotating tube (43) moves to the bottom of the close-range detection camera (1). The gas blows the wind blade (431), the rotating tube (43) rotates, and the brush (432) cleans the crack. When the gas is not ventilated, the rotating tube (43) stops rotating, and the rotating tube (43) is pressed away from the bottom of the close-range detection camera (1) by the spring, and the close-range detection camera (1) is moved vertically, so that the close-range detection camera (1) contacts the crack.

2. The bridge crack measuring device for bridge engineering according to claim 1 is characterized in that: The invention also comprises a second fixed tube (44), which is fixed in the housing seat (3). The second fixed tube (44) is located on the side of the cleaning chamber (31) opposite to the side where the first fixed tube (41) is arranged. The second fixed tube (44) is coaxial with the rotating tube (43). When the rotating tube (43) overcomes the spring and moves to the cleaning position, the rotating tube (43) is connected with the second fixed tube (44). The second fixed tube (44) is bent downward and then toward the cleaning chamber (31). The outlet of the second fixed tube (44) is reduced in size. The outlet of the second fixed tube (44) faces the bottom side of the cleaning chamber (31). The bottom side of the housing seat (3) is also provided with an impurity outlet (34) which is connected with the outside and the cleaning chamber (31).

3. The bridge crack measuring device for bridge engineering according to claim 2 is characterized in that: The first passive valve (45) further comprises a first passive valve (45), wherein the first passive valve (45) comprises a vertical pipe (451) connected between the first fixed pipe (41) and the air pump (5), wherein the first fixed pipe (41) is connected to the side of the vertical pipe (451), wherein a first closing column (452) is vertically slidably provided in the vertical pipe (451), wherein a curved gas passage is provided in the first closing column (452), wherein a counter-pin (453) is connected to the lower end of the first closing column (452), wherein the counter-pin (453) extends from the first fixed pipe (41) ... first fixed pipe (41) to the side of the vertical pipe (451), wherein a first closing column (452) is vertically slidably provided in the vertical pipe (451), wherein a curved gas passage is provided in the first closing column (452), wherein a counter-pin (453) is connected to the first fixed pipe (41) to the side of the vertical pipe (451), wherein a first closing column (452) is vertically slidably provided in the vertical pipe (451), wherein a curved gas passage is provided in the first closing column (452), wherein a counter-pin (453) is connected to the first fixed pipe (41) to the side of the vertical pipe The housing seat (3) extends out from the bottom side thereof, and a spring is provided between the first sealing column (452) and the bottom end of the vertical pipe (451). When the housing seat (3) is buckled at the crack position, the offset (453) is compressed and retracted, and the gas passage of the first sealing column (452) is connected to the first fixed pipe (41) and the air pump (5), and also includes a second passive valve (46). The second passive valve (46) includes a transverse pipe (461) connected between the vertical pipe (451) and the air pump (5). The transverse pipe (461) is transversely connected to the first fixed pipe (41) and the air pump (5). A second closed column (462) is slidably provided, and a gas passage communicating up and down is provided in the second closed column (462), and a connecting column (463) is connected to the end of the second closed column (462), and the connecting column (463) extends laterally to the side of the close-range detection camera (1), and a spring is supported between the other end of the second closed column (462) and the end of the cross tube (461), and a vertical stop block (11) is provided on the side of the close-range detection camera (1), and the lower part of the vertical stop block (11) The end is arranged in an inclined surface. When the close-range detection camera (1) does not enter the cleaning chamber (31), the vertical stop block (11) does not contact the connecting column (463). The gas channel on the second closing column (462) is connected to the air pump (5) and the vertical pipe (451). When the close-range detection camera (1) moves downward and along the vertical stop block (11), the second closing column (462) moves under pressure, and the second closing column (462) closes the air pump (5) and the vertical pipe (451).

4. The bridge crack measuring device for bridge engineering according to claim 3 is characterized in that: The shell base (3) is also provided with a visual positioning strip (32), and the visual positioning strip (32) is located outside the middle of the cleaning cabin, and the visual positioning strip (32) is used to indicate the cleaning position of the brush (432).

5. The bridge crack measuring device for bridge engineering according to claim 4 is characterized in that: The housing base (3) is also provided with a handle (33) for easy holding.

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