Portable bridge crack detection device

Abstract

The utility model relates to the technical field of crack detection, and discloses a portable bridge crack detection device which comprises a connecting rod, a probe and a host, a flat plate is fixedly mounted at the lower end of the connecting rod, a rotating wheel is rotatably connected to the bottom surface of the flat plate through a bearing, and a mounting frame is fixedly connected to the outer wall of the lower end of the connecting rod; one end of the probe penetrates through the mounting rack and is fixedly mounted with the mounting rack, the outer wall of the upper end of the connecting rod is fixedly connected with a supporting rod, the host is obliquely mounted on the upper end surface of the supporting rod, the outer wall of the connecting rod is fixedly connected with a connecting block, supporting legs are mounted on two sides of the connecting block, and the other end of each supporting leg is rotationally connected with an auxiliary wheel; the connecting block is installed on the outer wall of the connecting rod, the two supporting legs are installed on the outer wall of the connecting block, the auxiliary wheels are rotationally arranged on the side walls of the supporting legs, the probe is installed on the installation frame on the outer wall of the connecting rod, and the auxiliary wheels can stably support the probe through cooperation of the supporting legs and the rotating wheels at the lower end of the connecting rod. The stability of bridge crack detection by the probe is ensured, and the detection accuracy is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of crack detection, in particular to a portable bridge crack detection device. Background Art

[0002] As an extremely important part of the transportation system, bridges will inevitably develop some cracks during long-term use. According to different parameters such as the width, length, and depth of the cracks, their hazards will also vary. After cracks appear in a bridge, it is necessary to detect the cracks in a timely manner to determine their hazards. Usually, a detection device with a probe is used to detect the cracks.

[0003] The prior art such as the patent with the publication number CN220013302U discloses a crack detection device for asphalt pavement of road bridges, which includes a connecting rod. The connecting rod is L-shaped. A clamping sleeve is fixedly connected to the short side of the connecting rod, and the clamping sleeve clamps and connects a main body. The bottom end of the connecting rod is hinged with a clamp, and the clamp clamps and sleevingly connects a probe. Rollers are rotatably connected to both sides of the clamp. The connecting rod is hollow, and notch openings are provided at both ends of the connecting rod. The structure of the utility model is novel. This device effectively solves the problem that the existing portable pavement crack detector requires the detector to squat down to use the probe to detect the pavement, which is very inconvenient to operate and is prone to discomfort and fatigue during long-term operation.

[0004] There are still deficiencies in the prior art:

[0005] The probe in the above prior art is completely controlled by manually holding the connecting rod to adjust the irradiation angle. In actual use, it is difficult to keep the detection end of the probe detecting the crack, and the accuracy and stability of bridge crack detection are both poor, affecting the use. Therefore, a portable bridge crack detection device is proposed. Content of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides a portable bridge crack detection device, which is convenient for accurately and stably detecting bridge cracks.

[0007] To achieve the above object, the utility model provides the following technical solution: A portable bridge crack detection device includes a connecting rod, a probe, and a main body. A flat plate is fixedly installed at the lower end of the connecting rod. A runner is rotatably connected to the bottom surface of the flat plate through a bearing. An installation frame is fixedly connected to the outer wall of the lower end of the connecting rod. One end of the probe passes through the installation frame and is fixedly installed thereon. A support rod is fixedly connected to the outer wall of the upper end of the connecting rod. The main body is inclined and installed on the upper end surface of the support rod. A connecting block is fixedly connected to the outer wall of the connecting rod. Support legs are installed on both sides of the connecting block. The other end of each support leg is rotatably connected to an auxiliary wheel. A direction control unit is installed between the connecting rod and the runner.

[0008] Preferably, both sides of the connecting block are rotatably connected with a rotating rod and a limiting rod. One end of the support leg is fixedly connected to the outer wall of the rotating rod, and the limiting rod limits the rotation angle of the support leg.

[0009] Preferably, an elastic sleeve is embedded and installed on the side wall of the support leg, and the elastic sleeve is movably sleeved on the outer wall of the limiting rod.

[0010] Preferably, both sides of the connecting block are of inclined plane structures, and the support leg rotates along the inclined plane of the connecting block.

[0011] Preferably, a protective rod is installed on the bottom surface of the mounting bracket through bolts, and the lower end of the protective rod extends below the probe.

[0012] Preferably, the direction control unit includes mounting openings formed in the lower end surfaces of the flat plate and the connecting rod and communicating with each other. A first end face gear sleeve is rotatably connected in the mounting opening. A second end face gear sleeve is installed on the upper surface of the runner. The first end face gear sleeve and the second end face gear sleeve are meshed and connected. A transmission rod is fixedly connected to the side wall of the first end face gear sleeve. One end of the transmission rod penetrates outside the connecting rod and is rotatably connected thereto.

[0013] One end of the transmission rod located outside the connecting rod is of a T-shaped structure.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] 1. By installing a connecting block on the outer wall of the connecting rod in the present utility model, two support legs are installed on the outer wall of the connecting block. An auxiliary wheel is rotatably arranged on the side wall of the support leg. The probe is installed on the mounting bracket on the outer wall of the connecting rod. The auxiliary wheel can stably support the probe through the support leg and cooperate with the runner at the lower end of the connecting rod, ensuring the stability of the probe for detecting bridge cracks and the accuracy of the detection.

[0016] 2. The two support legs in the present utility model can rotate and can be retracted to the side wall of the connecting rod, reducing the occupied space and being convenient for carrying and using.

[0017] 3. By rotating the transmission rod on the connecting rod to drive the first end face gear to cooperate with the second end face gear sleeve to drive the runner to rotate in the present utility model, it is convenient to accurately control the traveling path and facilitate the probe to detect cracks.

[0018] Other features and advantages of the present utility model will be described in the following specification, and, in part, will be obvious from the specification or learned by implementing the present utility model. The objectives and other advantages of the present utility model can be realized and obtained by the structures pointed out in the specification, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is Figure 1 the partial enlarged view of A in

[0021] Figure 3 the schematic structural view of the storage state of the support leg of the present utility model;

[0022] Figure 4 the schematic sectional view of the connecting rod, flat plate and runner of the present utility model;

[0023] Figure 5 is Figure 4 the partial enlarged view of B in

[0024] In the figure: 1, connecting rod; 2, flat plate; 3, runner; 4, mounting bracket; 5, probe; 6, direction control unit; 61, mounting port; 62, transmission rod; 63, first end face gear sleeve; 64, second end face gear sleeve; 7, connecting block; 8, support leg; 9, limiting rod; 10, elastic sleeve; 11, auxiliary wheel; 12, protective rod; 13, rotating rod; 14, support rod; 15, main body. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art in the technical field without making creative efforts belong to the scope of protection of the present utility model.

[0026] Please refer to Figures 1-5 , a portable bridge crack detection device, including a connecting rod 1, a probe 5 and a main body 15. A flat plate 2 is fixedly installed at the lower end of the connecting rod 1. A runner 3 is rotatably connected to the bottom surface of the flat plate 2 through a bearing. An installation bracket 4 is fixedly connected to the outer wall of the lower end of the connecting rod 1. One end of the probe 5 passes through the installation bracket 4 and is fixedly installed thereon. A support rod 14 is fixedly connected to the outer wall of the upper end of the connecting rod 1. The main body 15 is obliquely installed on the upper end surface of the support rod 14. A connecting block 7 is fixedly connected to the outer wall of the connecting rod 1. Support legs 8 are installed on both sides of the connecting block 7. The other end of the support leg 8 is rotatably connected to an auxiliary wheel 11. A direction control unit 6 is installed between the connecting rod 1 and the runner 3.

[0027] Such as Figures 1-3As shown in the figure, the structure of the bridge crack detection device in the present utility model is similar to that of the existing bridge crack detection device. For example, the prior art is CN220013302U. The main improvement of the present utility model lies in facilitating the accurate and stable detection of bridge cracks. The present utility model supports the whole through the runner 3 at the lower end of the connecting rod 1 cooperating with the auxiliary wheels 11 on the side walls of the two support legs 8. The probe 5 is installed on the mounting bracket 4 on the outer wall of the lower end of the connecting rod 1, and the main unit 15 is inclined and installed on the support rod 14 at the upper end of the connecting rod 1. When it is necessary to detect the bridge crack, start the main unit 15 and the probe 5 to work. With the support of the support legs 8 cooperating with the auxiliary wheels 11 for the connecting rod 1, the detection end of the probe 5 is vertically downward irradiated on the crack. The worker holds the connecting rod 1 and pushes it. The angle of the probe 5 will not shift, and the runner 3 can rotate on the bottom surface of the flat plate 2. Furthermore, the traveling angle can be adjusted, so that the probe 5 stably and accurately detects the crack, ensuring the accuracy of the crack detection and improving the practicability.

[0028] As Figure 2 , 3 As shown in the figure, both sides of the connecting block 7 are rotatably connected with a rotating rod 13 and a limiting rod 9. One end of the support leg 8 is fixedly connected to the outer wall of the rotating rod 13, and the limiting rod 9 limits the rotation angle of the support leg 8. The support leg 8 rotates on the side wall of the connecting block 7 through the rotating rod 13. When not in use, the support leg 8 can be rotated to the side of the connecting rod 1, so that the support leg 8 is rotated to be parallel to the connecting rod 1, and then the support leg 8 is stored, which is convenient for carrying. When in use, rotate the support leg 8 again to make it contact with the limiting rod 9. The limiting rod 9 limits the rotation of the support leg 8, so that an included angle is formed between the support leg 8 and the connecting rod 1, and then the whole can be stably supported, which is convenient for use.

[0029] As Figure 2 As shown in the figure, an elastic sleeve 10 is embedded and installed on the side wall of the support leg 8, and the elastic sleeve 10 is movably sleeved on the outer wall of the limiting rod 9. When the support leg 8 is rotated and used, the elastic sleeve 10 on the support leg 8 is sleeved on the outer wall of the limiting rod 9. The elastic sleeve 10 can clamp the limiting rod 9 through its elastic force, thereby maintaining the stability of the support leg 8 after expansion, improving the stability during the overall movement, and being convenient for use.

[0030] As Figure 2 As shown in the figure, both sides of the connecting block 7 are inclined plane structures, and the support leg 8 rotates along the inclined plane of the connecting block 7. When the support leg 8 is expanded and used, it rotates outwards along the inclined plane of the connecting block 7. Furthermore, the two expanded support legs 8 form a spread-eagle structure, so that the support leg 8 cooperates with the auxiliary wheel 11 to improve the stability of the overall support.

[0031] As Figure 3As shown, a protective rod 12 is installed on the bottom surface of the mounting bracket 4 through bolts, and the lower end of the protective rod 12 extends below the probe 5; when the connecting rod 1 tilts forward, the protective rod 12 contacts the ground first, preventing the probe 5 from colliding with the ground and being damaged, thereby improving the protection performance.

[0032] As Figure 4 , 5 shown, the direction control unit 6 includes mounting openings 61 formed in the lower end surfaces of the flat plate 2 and the connecting rod 1 and communicating with each other. A first end face gear sleeve 63 is rotatably connected in the mounting opening 61. A second end face gear sleeve 64 is installed on the upper surface of the runner 3. The first end face gear sleeve 63 and the second end face gear sleeve 64 are meshed and connected. A transmission rod 62 is fixedly connected to the side wall of the first end face gear sleeve 63. One end of the transmission rod 62 passes through the connecting rod 1 and is rotatably connected thereto; when it is necessary to detect cracks with the probe 5, the transmission rod 62 can be rotated. The transmission rod 62 drives the first end face gear sleeve 63 to rotate. The first end face gear sleeve 63 drives the second end face gear sleeve 64 to rotate. The second end face gear sleeve 64 drives the runner 3 to rotate, thereby controlling the angle of the runner 3, facilitating the control of the traveling direction, and facilitating the detection of cracks by the probe 5.

[0033] As Figure 4 shown, one end of the transmission rod 62 located outside the connecting rod 1 has a T-shaped structure; the T-shaped transmission rod 62 facilitates the operator to manually rotate the transmission rod 62, thereby facilitating the adjustment of the angle of the runner 3 and controlling the traveling direction.

[0034] The implementation steps in this embodiment: when it is necessary to detect bridge cracks, rotate the support leg 8 so that the elastic sleeve 10 on the support leg 8 is sleeved on the outer wall of the limit rod 9. The elastic sleeve 10 can clamp the limit rod 9 through its elastic force, thereby maintaining the stability of the support leg 8 after expansion. The runner 3 at the lower end of the connecting rod 1 cooperates with the auxiliary wheels 11 on the side walls of the two support legs 8 to support the whole. The probe 5 is installed on the mounting bracket 4 on the outer wall of the lower end of the connecting rod 1. The main unit 15 is inclined and installed on the support rod 14 at the upper end of the connecting rod 1. Start the main unit 15 and the probe 5 to work. Utilize the support of the support leg 8 and the auxiliary wheel 11 for the connecting rod 1 to make the detection end of the probe 5 vertically face downwards to irradiate the crack. The worker holds the connecting rod 1 and pushes it. The angle of the probe 5 will not shift, enabling the probe 5 to stably and accurately detect the crack. The angle of the runner 3 can also be controlled by rotating the transmission rod 62. The transmission rod 62 drives the first end face gear sleeve 63 to rotate. The first end face gear sleeve 63 drives the second end face gear sleeve 64 to rotate. The second end face gear sleeve 64 drives the runner 3 to rotate, thereby controlling the angle of the runner 3, facilitating the control of the traveling direction, and facilitating the detection of cracks by the probe 5.

[0035] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A portable bridge crack detection device, comprising a connecting rod (1), a probe (5) and a host (15), characterized in that: A plate (2) is fixedly mounted on the lower end of the connecting rod (1), a rotating wheel (3) is rotatably mounted on the bottom surface of the plate (2) via a bearing, a mounting frame (4) is fixedly mounted on the outer wall of the lower end of the connecting rod (1), one end of the probe (5) is passed through the mounting frame (4) and fixedly mounted thereto, a support rod (14) is fixedly mounted on the outer wall of the upper end of the connecting rod (1), a main machine (15) is obliquely mounted on the upper end surface of the support rod (14), a connecting block (7) is fixedly mounted on the outer wall of the connecting rod (1), supporting legs (8) are mounted on both sides of the connecting block (7), the other end of the supporting leg (8) is rotatably connected to an auxiliary wheel (11), and a steering unit (6) is mounted between the connecting rod (1) and the rotating wheel (3).

2. The portable bridge crack detection device according to claim 1, characterized in that: A rotating rod (13) and a limiting rod (9) are rotatably connected on both sides of the connecting block (7); one end of the supporting leg (8) is fixedly connected to the outer wall of the rotating rod (13); and the limiting rod (9) limits the rotation angle of the supporting leg (8).

3. The portable bridge crack detection device according to claim 2, characterized in that: An elastic sleeve (10) is embedded and installed on the side wall of the supporting leg (8), and the elastic sleeve (10) is movably sleeved on the outer wall of the limiting rod (9).

4. The portable bridge crack detection device according to claim 2, characterized in that: Both sides of the connection block (7) are inclined structures, and the support legs (8) rotate along the inclined surfaces of the connection block (7).

5. The portable bridge crack detection device according to claim 1, characterized in that: A protection rod (12) is installed on the bottom surface of the mounting frame (4) by means of bolts, and the lower end of the protection rod (12) extends to the bottom of the probe (5).

6. The portable bridge crack detection device according to claim 1, characterized in that: The direction control unit (6) comprises a mounting opening (61) which is opened on the lower end surface of the flat plate (2) and the connecting rod (1) and is connected thereto; a first end face gear sleeve (63) is rotatably connected in the mounting opening (61); a second end face gear sleeve (64) is mounted on the upper surface of the rotating wheel (3); the first end face gear sleeve (63) and the second end face gear sleeve (64) are meshingly connected; a transmission rod (62) is fixedly connected to the side wall of the first end face gear sleeve (63); one end of the transmission rod (62) is passed through the outside of the connecting rod (1) and is rotatably connected thereto.

7. The portable bridge crack detection device according to claim 6, characterized in that: One end of the transmission rod (62) located outside the connecting rod (1) is in a T-shaped structure.

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