Concrete box girder crack detection equipment

Abstract

The utility model relates to the technical field of concrete box girders, in particular to concrete box girder crack detection equipment which comprises a concrete box girder body and a box body arranged on the concrete box girder body, an installation frame is fixedly installed at one end of the box body, and a first transverse rod is inserted into the installation frame. Displacement mechanisms are arranged on the top of the first cross rod and the top of the mounting frame, a fixing frame is fixed to one end of the first cross rod, a lifting rod is movably arranged in the fixing frame, and a lifting mechanism is arranged on one side of the lifting rod and the fixing frame. According to the sound wave detection device for detecting the cracks of the whole concrete box girder, the ultrasonic transmitter and the ultrasonic receiver can be correspondingly arranged on the concrete box girder, so that the cracks at the bottom of the concrete box girder can be effectively detected, and the whole detection device can move horizontally and transversely; different positions of the bottom of the concrete box girder can be conveniently detected, and the detection range is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete box beams, in particular to a device for detecting cracks in a concrete box beam. Background Art

[0002] Concrete box girders are structures used to cross structures in highway construction. With the increase in road traffic, problems such as vehicle over-limit and overloading will cause cracks and other defects in the box girder after a period of operation. Cracks have a great impact on the strength, durability and aesthetics of the box girder, so crack detection is very important. Common detection methods include visual detection, camera detection, sound wave detection, Vickers hardness tester detection, laser scanning, etc. Among them, the sound wave detection method is to transmit sound waves into the concrete, and then receive the sound wave signal back through the receiver to detect the cracks in the concrete. This method can detect micro cracks and capillary cracks, and does not need to contact the concrete surface, and does not damage the concrete, so it is often used.

[0003] After searching, the patent publication number CN219635840U is a portable protective prestressed concrete box beam crack detection device, including a box body, a control device is arranged on the left side of the interior of the box body, connection ports are arranged on both sides of the middle of the right side of the control device, a sensing component is arranged on the right side of the control device, legs are fixedly connected at the four corners of the lower surface of the box body, a number of supporting mechanisms are arranged on the lower surface of the box body, hinges are arranged on the left and right sides above the back of the box body, a cover plate is fixedly connected to one side of the hinge, a handle is fixedly connected to the middle of the back of the cover plate, a fixing buckle is arranged in the middle of the upper surface of the cover plate, and a card block is fixedly connected to the middle of the upper front of the box body. The utility model uses a box body arranged outside the control device, the box body stores the control device and the sensing component inside the box body, and the legs support the box body, so as to facilitate the operator to carry the device.

[0004] In the process of implementing the above scheme, it was found that the following problems in the prior art have not been well solved: the concrete box girder crack detection equipment in the prior art can only detect and process the upper surface of the concrete box girder, while the cracks at the bottom of the concrete box girder cannot be effectively detected and cannot meet the use requirements. Therefore, it is urgent to design a concrete box girder crack detection equipment to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a concrete box beam crack detection device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A concrete box beam crack detection device comprises a concrete box beam body and a box body arranged on the concrete box beam body, a mounting frame is fixedly installed at one end of the box body, a first cross bar is plugged into the interior of the mounting frame, a displacement mechanism is arranged at the top of the first cross bar and the top of the mounting frame, a fixed frame is fixed at one end of the first cross bar, a lifting rod is movably arranged inside the fixed frame, a lifting mechanism is arranged on one side of the lifting rod and the fixed frame, a rotating mechanism is arranged at the bottom of the lifting mechanism, and a second cross bar is arranged on one side of the rotating mechanism, two slots are opened at one end of the top of the second cross bar, and the same U-shaped frame is plugged into the interior of the two slots, and the U-shaped frame A support plate is fixed between the inner walls on both sides, an ultrasonic transmitter is fixedly installed at the middle position of the top of the support plate, a guide groove is opened at the bottom of the installation frame, and an ultrasonic receiver is fixedly installed at one end of the bottom of the first cross bar, a connecting rod is fixed on one side of the fixed frame, and a marking positioning assembly is provided at one end of the connecting rod, the position of the ultrasonic receiver, the ultrasonic transmitter and the position of the marking positioning assembly correspond to each other, mounting columns are fixed on the inner walls around the bottom of the box body, and a mounting platform is fixedly installed on the top of the mounting column, an ultrasonic detection instrument body is fixedly installed on the top of the mounting platform, and the ultrasonic detection instrument body is electrically connected to the ultrasonic transmitter and the ultrasonic receiver.

[0008] Furthermore, the tops of both ends of the U-shaped frame are rotatably connected with pulleys, and the top surfaces of the pulleys are higher than the top surfaces of the ultrasonic transmitters. A second spring is fixed between the bottom inner wall of the U-shaped frame and the bottom of the second crossbar.

[0009] Furthermore, the displacement mechanism includes a first tooth groove equidistantly arranged at the top of the first cross bar, and a top frame is fixedly installed at one end of the top of the mounting frame, a through opening is opened at one end of the top of the mounting frame, and the inner wall of the top frame is rotatably connected to a first driving gear, and the bottom of the first driving gear passes through the through opening and engages with the first tooth groove, and a first forward and reverse motor for driving the first driving gear to rotate is fixedly installed on one side of the top frame.

[0010] Furthermore, the lifting mechanism includes a second tooth groove equidistantly arranged on one side of the lifting rod, and a second driving gear is rotatably connected to one side of the inner wall of the fixed frame, the second driving gear is meshed with the second tooth groove, and a second forward and reverse motor is fixedly installed on the outer wall of the fixed frame to drive the second driving gear to rotate.

[0011] Furthermore, the rotating mechanism includes a connecting groove opened at the bottom of the lifting rod, and one end of the second cross bar is rotatably connected to the inside of the connecting groove through a pin shaft, a missing gear is fixed to one end of the second cross bar, an electric push rod is fixedly installed on the top inner wall of the connecting groove, and an L-shaped rack is fixedly installed on the piston end of the electric push rod, one side of the L-shaped rack is meshed with the missing gear, an L-shaped baffle is fixed to the bottom of one side of the lifting rod, and the bottom of the L-shaped baffle is attached to the top surface of the second cross bar.

[0012] Furthermore, the marking positioning assembly includes a marking seat fixed at one end of the connecting rod, and a center hole is provided in the middle position of the marking seat, a spherical groove is provided in the middle position of the center hole, a universal ball is movably provided on the inner wall of the spherical groove, a through groove is provided in the middle position of the universal ball, and the cross-section of the through groove is cross-shaped, a marking pen is inserted in the middle position of the through groove, a limit plate is fixed on the outer wall of the marking pen, and a first spring is fixed between the bottom of the limit plate and the inner wall of the through groove.

[0013] Furthermore, universal wheels are fixedly installed at the four corners of the bottom of the box, and a push handle is fixedly installed on one side of the box. The other side of the top of the box is provided with equidistantly distributed heat dissipation slots, and a top cover is hinged on the top of the box, and a handle rod is fixed on one side of the top cover.

[0014] Furthermore, a battery is fixedly installed on the bottom inner wall of the box, and the battery is electrically connected to the first forward and reverse motor, the second forward and reverse motor, the electric push rod, and the ultrasonic detection instrument body.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] In the utility model, the box body, the ultrasonic detection instrument body, the installation frame, the displacement mechanism, the first cross bar, the lifting mechanism, the fixed frame, the lifting rod, the rotating mechanism, the second cross bar, the ultrasonic transmitter, the ultrasonic receiver, etc. are used to form a whole concrete box beam crack detection sound wave detection device. The ultrasonic transmitter and the ultrasonic receiver can be correspondingly arranged on the concrete box beam in cooperation with the displacement mechanism, the lifting mechanism, and the rotating mechanism, so as to effectively detect the cracks at the bottom of the concrete box beam and meet the use requirements, so that the whole detection equipment can move horizontally and laterally, so as to detect different positions at the bottom of the concrete box beam and improve the detection range.

[0017] In the utility model, by utilizing the arranged marking positioning component, when determining the crack position, the marking method can be used for positioning processing, which is convenient for subsequent maintenance work and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a schematic diagram of the overall structure of a concrete box girder crack detection device.

[0019] Figure 2 It is a front view of a concrete box girder crack detection device.

[0020] Figure 3 The present invention is a cross-sectional view of a box of a concrete box girder crack detection device.

[0021] Figure 4The present invention is a schematic diagram of the lifting mechanism and rotating mechanism structure of a concrete box girder crack detection device.

[0022] Figure 5 The present invention is a schematic diagram of the second cross bar and slot structure of a concrete box girder crack detection device.

[0023] Figure 6 The present invention is a schematic diagram of the structure of a marking pen and a guide groove of a concrete box girder crack detection device.

[0024] Figure 7 The present invention is a schematic diagram of a marking seat and a first tooth groove structure of a concrete box girder crack detection device.

[0025] Figure 8 The present invention is a schematic diagram of a universal ball and a first spring structure of a concrete box girder crack detection device.

[0026] In the figure: 1, box body; 2, push handle; 3, top cover; 4, heat dissipation groove; 5, handle bar; 6, installation frame; 7, displacement mechanism; 701, top frame; 702, first forward and reverse motor; 703, first driving gear; 704, first tooth groove; 8, first cross bar; 9, lifting mechanism; 901, second forward and reverse motor; 902, second tooth groove; 903, second driving gear; 10, fixed frame; 11, lifting rod; 12, rotating mechanism; 1201, connecting groove; 1202, electric push rod; 1203, L-shaped rack; 1204, missing teeth Wheel; 1205, L-shaped baffle; 13, second cross bar; 14, U-shaped frame; 15, ultrasonic transmitter; 16, marking positioning assembly; 1601, marking seat; 1602, marking pen; 1603, universal ball; 1604, through groove; 1605, first spring; 17, connecting rod; 18, concrete box girder body; 19, battery; 20, mounting table; 21, mounting column; 22, ultrasonic detection instrument body; 23, ultrasonic receiver; 24, second spring; 25, support plate; 26, pulley; 27, slot; 28, guide groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-Figure 8In an embodiment of the utility model, a concrete box beam crack detection device comprises a concrete box beam body 18 and a box body 1 arranged on the concrete box beam body 18, a mounting frame 6 is fixedly installed at one end of the box body 1, and a first cross bar 8 is inserted into the interior of the mounting frame 6, a displacement mechanism 7 is arranged at the top of the first cross bar 8 and the top of the mounting frame 6, the displacement mechanism 7 comprises a first tooth groove 704 equidistantly arranged at the top of the first cross bar 8, and a top frame 701 is fixedly installed at one end of the top of the mounting frame 6, a through opening is opened at one end of the top of the mounting frame 6, a first driving gear 703 is rotatably connected to the inner wall of the top frame 701, the bottom of the first driving gear 703 passes through the through opening and meshes with the first tooth groove 704, and a gear for driving the first gear 703 is fixedly installed on one side of the top frame 701. A first forward and reverse motor 702 for rotating a drive gear 703, a fixed frame 10 is fixed at one end of the first cross bar 8, and a lifting rod 11 is movably arranged inside the fixed frame 10, a lifting mechanism 9 is arranged on one side of the lifting rod 11 and the fixed frame 10, the lifting mechanism 9 includes a second tooth groove 902 equidistantly arranged on one side of the lifting rod 11, and a second driving gear 903 is rotatably connected to one side of the inner wall of the fixed frame 10, the second driving gear 903 is meshed with the second tooth groove 902, a second forward and reverse motor 901 for driving the second driving gear 903 to rotate is fixedly installed on the outer wall of the fixed frame 10, a rotating mechanism 12 is arranged at the bottom of the lifting mechanism 9, and a second cross bar 13 is arranged on one side of the rotating mechanism 12, the rotating mechanism 12 includes a second tooth groove 902 arranged on one side of the lifting rod 11, and a second tooth groove 902 is arranged on one side of the inner wall of the fixed frame 10, and the second driving gear 903 is meshed with the second tooth groove 902, and a second forward and reverse motor 901 for driving the second driving gear 903 to rotate is fixedly installed on the outer wall of the fixed frame 10, A connecting groove 1201 is provided at the bottom of the lifting rod 11, and one end of the second cross bar 13 is rotatably connected to the inside of the connecting groove 1201 through a pin shaft, a missing gear 1204 is fixed to one end of the second cross bar 13, an electric push rod 1202 is fixedly installed on the top inner wall of the connecting groove 1201, and an L-shaped rack 1203 is fixedly installed on the piston end of the electric push rod 1202, one side of the L-shaped rack 1203 is meshed with the missing gear 1204, an L-shaped baffle 1205 is fixed to the bottom of one side of the lifting rod 11, and the bottom of the L-shaped baffle 1205 is attached to the top surface of the second cross bar 13, two slots 27 are provided at one end of the top of the second cross bar 13, and the same U-shaped frame 14 is inserted into the inside of the two slots 27, and the inner walls on both sides of the U-shaped frame 14 are fixed between them. A support plate 25 is provided, an ultrasonic transmitter 15 is fixedly installed at the middle position of the top of the support plate 25, a guide groove 28 is provided at the bottom of the mounting frame 6, and an ultrasonic receiver 23 is fixedly installed at one end of the bottom of the first cross bar 8, a connecting rod 17 is fixed on one side of the fixing frame 10, and a marking positioning component 16 is provided at one end of the connecting rod 17, the position of the ultrasonic receiver 23, the position of the ultrasonic transmitter 15 and the position of the marking positioning component 16 correspond, the inner walls around the bottom of the box body 1 are fixed with mounting columns 21, and a mounting platform 20 is fixedly installed on the top of the mounting column 21, and an ultrasonic detection instrument body 22 is fixedly installed on the top of the mounting platform 20, and the ultrasonic detection instrument body 22 is electrically connected to the ultrasonic transmitter 15 and the ultrasonic receiver 23,The ultrasonic transmitter 15 and the ultrasonic receiver 23 can be correspondingly arranged on the concrete box girder in cooperation with the displacement mechanism 7, the lifting mechanism 9, and the rotating mechanism 12, so as to effectively detect the cracks at the bottom of the concrete box girder.

[0029] Specifically, the tops of both ends of the U-shaped frame 14 are rotatably connected with pulleys 26, and the top surface of the pulley 26 is higher than the top surface of the ultrasonic transmitter 15. A second spring 24 is fixed between the bottom inner wall of the U-shaped frame 14 and the bottom of the second cross bar 13. The pulley 26 makes it easy for the ultrasonic transmitter 15 to move at the bottom of the concrete box girder body 18, and the ultrasonic transmitter 15 is buffered under the buffering action of the second spring 24, so that the entire detection equipment can effectively move at the concave and convex positions at the bottom of the concrete box girder body 18.

[0030] Specifically, the marking and positioning assembly 16 includes a marking seat 1601 fixed at one end of the connecting rod 17, and a center hole is opened in the middle position of the marking seat 1601, a spherical groove is opened in the middle position of the center hole, a universal ball 1603 is movably arranged on the inner wall of the spherical groove, a through groove 1604 is opened in the middle position of the universal ball 1603, and the cross-section of the through groove 1604 is cross-shaped, a marking pen 1602 is inserted in the middle position of the through groove 1604, a limit plate is fixed on the outer wall of the marking pen 1602, and a first spring 1605 is fixed between the bottom of the limit plate and the inner wall of the through groove 1604. The marking pen 1602 in the marking and positioning assembly 16 is used for marking, so that crack positioning can be carried out by marking, which is convenient for subsequent maintenance operations.

[0031] Specifically, universal wheels are fixedly installed at the four corners of the bottom of the box body 1, and a push handle 2 is fixedly installed on one side of the box body 1. The other side of the top of the box body 1 is provided with heat dissipation grooves 4 distributed at equal distances, and a top cover 3 is hinged on the top of the box body 1, and a handle rod 5 is fixed on one side of the top cover 3. A battery 19 is fixedly installed on the inner wall of the bottom of the box body 1, and the battery 19 is electrically connected to the first forward and reverse motor 702, the second forward and reverse motor 901, the electric push rod 1202, and the ultrasonic detection instrument body 22. The push handle 2 and the universal wheel are convenient for pushing the entire detection equipment to move horizontally on the concrete box girder body 18, so as to facilitate crack detection at different positions of the bottom of the concrete box girder body 18.

[0032] The working principle of the utility model is as follows: when in use, the lifting rod 11 and the second cross bar 13 are vertically arranged on one side of the concrete box beam, and the second forward and reverse motor 901 in the lifting mechanism 9 is used to drive the second driving gear 903 to rotate, and the meshing action of the second driving gear 903 and the second tooth groove 902 is coordinated to adjust the height of the lifting rod 11, the second cross bar 13 and the ultrasonic transmitter 15, and then the height of the L-shaped rack 1203 is adjusted by the electric push rod 1202 in the rotating mechanism 12, and the meshing action of the L-shaped rack 1203 and the missing gear 1204 is used to drive the second cross bar 13 to rotate ninety degrees, so that the position of the ultrasonic transmitter 15 corresponds to the position of the ultrasonic receiver 23, and the lifting action of the lifting mechanism 9 is continued to be used to adjust the height of the second cross bar 13, so that the pulley 26 contacts the bottom surface of the concrete box beam body 18. The ultrasonic transmitter 15, the ultrasonic receiver 23 and the ultrasonic detection instrument body 22 are used to perform the ultrasonic wave detection operation of the cracks. Moreover, the first forward and reverse motor 702 in the displacement mechanism 7 can be used to drive the first driving gear 703 to rotate, and the first cross bar 8 and the second cross bar 13 as well as the ultrasonic transmitter 15 and the ultrasonic receiver 23 are driven to move laterally through the meshing action of the first driving gear 703 and the first tooth groove 704. Then, the entire detection equipment is pushed to move by the push handle 2 and the universal wheel, and the ultrasonic transmitter 15 and the ultrasonic receiver 23 are driven to move horizontally, so that different positions of the bottom of the concrete box girder body 18 can be detected. When cracks are detected, the marking pen 1602 in the marking and positioning assembly 16 is used to mark, and the crack positioning process can be performed by marking, which is convenient for subsequent maintenance operations.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A concrete box beam crack detection device, comprising a concrete box beam body (18) and a box body (1) arranged on the concrete box beam body (18), characterized in that: A mounting frame (6) is fixedly mounted on one end of the box body (1), and a first cross bar (8) is plugged into the interior of the mounting frame (6); a displacement mechanism (7) is arranged between the top of the first cross bar (8) and the top of the mounting frame (6); a fixed frame (10) is fixed on one end of the first cross bar (8), and a lifting rod (11) is movably arranged inside the fixed frame (10); a lifting mechanism (9) is arranged on one side of the lifting rod (11) and the fixed frame (10); a rotating mechanism (12) is arranged at the bottom of the lifting mechanism (9), and a second cross bar (13) is arranged on one side of the rotating mechanism (12); two slots (27) are provided at one end of the top of the second cross bar (13), and the same U-shaped frame (14) is plugged into the interior of the two slots (27); a support plate (25) is fixed between the inner walls of both sides of the U-shaped frame (14), and the support plate (25) ), an ultrasonic transmitter (15) is fixedly installed at the middle position of the top of the housing (1), a guide groove (28) is provided at the bottom of the installation frame (6), and an ultrasonic receiver (23) is fixedly installed at one end of the bottom of the first cross bar (8), a connecting rod (17) is fixed on one side of the fixing frame (10), and a marking positioning assembly (16) is provided at one end of the connecting rod (17), the position of the ultrasonic receiver (23), the position of the ultrasonic transmitter (15) and the position of the marking positioning assembly (16) correspond to each other, the inner walls around the bottom of the box body (1) are fixedly provided with mounting columns (21), and a mounting platform (20) is fixedly installed on the top of the mounting column (21), and an ultrasonic detection instrument body (22) is fixedly installed on the top of the mounting platform (20), and the ultrasonic detection instrument body (22) is electrically connected to the ultrasonic transmitter (15) and the ultrasonic receiver (23).

2. A concrete box girder crack detection device according to claim 1, characterized in that: The tops of both ends of the U-shaped frame (14) are rotatably connected to pulleys (26), and the top surface of the pulley (26) is higher than the top surface of the ultrasonic transmitter (15). A second spring (24) is fixed between the bottom inner wall of the U-shaped frame (14) and the bottom of the second crossbar (13).

3. A concrete box girder crack detection device according to claim 2, characterized in that: The displacement mechanism (7) comprises a first tooth groove (704) which is equidistantly arranged on the top of the first crossbar (8), and a top frame (701) is fixedly installed at one end of the top of the installation frame (6), a through opening is opened at one end of the top of the installation frame (6), and a first driving gear (703) is rotatably connected to the inner wall of the top frame (701), and the bottom of the first driving gear (703) passes through the through opening and meshes with the first tooth groove (704), and a first forward and reverse motor (702) for driving the first driving gear (703) to rotate is fixedly installed on one side of the top frame (701).

4. A concrete box girder crack detection device according to claim 3, characterized in that: The lifting mechanism (9) comprises a second tooth groove (902) equidistantly arranged on one side of the lifting rod (11), and a second driving gear (903) is rotatably connected to one side of the inner wall of the fixed frame (10), the second driving gear (903) is meshed with the second tooth groove (902), and a second forward and reverse motor (901) for driving the second driving gear (903) to rotate is fixedly installed on the outer wall of the fixed frame (10).

5. A concrete box girder crack detection device according to claim 4, characterized in that: The rotating mechanism (12) comprises a connecting groove (1201) provided at the bottom of the lifting rod (11), and one end of the second cross bar (13) is rotatably connected to the inside of the connecting groove (1201) via a pin shaft, a missing gear (1204) is fixed to one end of the second cross bar (13), an electric push rod (1202) is fixedly installed on the top inner wall of the connecting groove (1201), and an L-shaped rack (1203) is fixedly installed on the piston end of the electric push rod (1202), one side of the L-shaped rack (1203) is meshed with the missing gear (1204), an L-shaped baffle (1205) is fixed to the bottom of one side of the lifting rod (11), and the bottom of the L-shaped baffle (1205) is attached to the top surface of the second cross bar (13).

6. A concrete box girder crack detection device according to claim 5, characterized in that: The marking positioning assembly (16) comprises a marking seat (1601) fixed to one end of the connecting rod (17), and a center hole is provided in the middle of the marking seat (1601), a spherical groove is provided in the middle of the center hole, a universal ball (1603) is movably provided on the inner wall of the spherical groove, a through groove (1604) is provided in the middle of the universal ball (1603), and the cross section of the through groove (1604) is cross-shaped, a marking pen (1602) is inserted in the middle of the through groove (1604), a limiting plate is fixed on the outer wall of the marking pen (1602), and a first spring (1605) is fixed between the bottom of the limiting plate and the inner wall of the through groove (1604).

7. The concrete box beam crack detection device according to claim 1, characterized in that: Universal wheels are fixedly mounted at the four corners of the bottom of the box (1), and a push handle (2) is fixedly mounted on one side of the box (1). The other side of the top of the box (1) is provided with heat dissipation grooves (4) distributed at equal distances, and a top cover (3) is hingedly mounted on the top of the box (1), and a handle bar (5) is fixed on one side of the top cover (3).

8. The concrete box girder crack detection device according to claim 6, characterized in that: A battery (19) is fixedly mounted on the inner wall of the bottom of the box (1), and the battery (19) is electrically connected to the first forward and reverse motor (702), the second forward and reverse motor (901), the electric push rod (1202), and the ultrasonic detection instrument body (22).

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