Road and bridge crack detector

Abstract

The utility model relates to the technical field of road and bridge crack detection, in particular to a road and bridge crack detector which comprises a supporting box, a measuring probe and an auxiliary box, a positioning supporting mechanism is arranged in the supporting box, and a heat dissipation maintenance mechanism is arranged on the side edge of the positioning supporting mechanism. A movable adjusting mechanism is arranged on the side edge of the heat dissipation maintenance mechanism, and an adjusting balance mechanism is arranged on the side edge of the movable adjusting mechanism. When the road and bridge crack detector is used, the whole device can automatically position the measuring probe by utilizing the counter-acting force of an abutting spring; furthermore, the arrangement of a mounting bottom plate, a first balance weight plate, a limiting T-shaped groove, a second balance weight plate and a limiting T-shaped strip is matched, so that the overall shooting level of the device can be realized through the design of automatically detaching the balance weight plate, and the overall level of the device can be ensured when part of road surfaces are cracked and complicated; therefore, the accuracy of the final shooting result is ensured.

Description

Technical Field

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

[0002] Whether it is a road or a bridge, as the main means of transportation such as cars, it is inevitable that various cracks and defects will occur due to the long-term use of heavy cargo transportation and the outdoor use scene under wind and sun. However, it is difficult to determine the specific degree of damage and the depth of damage when confirming the specific degree of damage, which affects the judgment of the remaining service life and whether it can continue to be used. The road and bridge crack detector is a device that can detect the distribution of various cracks;

[0003] The existing road bridge crack detectors require workers to hold a measuring probe to measure and photograph the cracks during actual use. However, manual holding cannot ensure that the measuring device remains absolutely horizontal for shooting. Once the road surface has an up and down distance deviation, it will directly affect the accuracy of the shooting results. However, the existing devices have not made improvements to this problem, and the overall use effect is poor. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned problem and to propose a road bridge crack detector, which improves the existing road bridge crack detector, which requires workers to hold a measuring probe to measure and photograph the cracks during actual use. However, due to manual hand-holding, it is impossible to ensure that the measuring device remains in an absolutely horizontal state for photographing. Once the road surface has an up and down distance deviation, it will directly affect the accuracy of the photographing results. However, the existing device has not made improvements to this problem, and the overall use effect is poor.

[0005] A road bridge crack detector comprises a support box, a measuring probe and an auxiliary box: the measuring probe is located inside the support box, the top outer wall of the support box is provided with an auxiliary box, and the support box and the auxiliary box are both configured as a "U"-shaped structure, a positioning support mechanism is provided inside the support box, a heat dissipation maintenance mechanism is provided on the side of the positioning support mechanism, a movable adjustment mechanism is provided on the side of the heat dissipation maintenance mechanism, and an adjustment balance mechanism is provided on the side of the movable adjustment mechanism.

[0006] Preferably, the positioning support mechanism includes a limiting sleeve, a limiting piston rod and a resistance spring. The limiting sleeves are symmetrically and evenly installed on the inner walls of both sides of the support box. The limiting piston rod is slidably installed inside the limiting sleeve. A resistance spring is connected between the limiting piston rod and the inner wall of the bottom end of the limiting sleeve.

[0007] Preferably, the extended end of the limiting piston rod is arranged outside the limiting sleeve, and the extended end of the limiting piston rod is connected to the supporting back plate, and the side outer wall of the supporting back plate is provided with a resistance pad.

[0008] Preferably, the heat dissipation maintenance mechanism includes a micro motor, an auxiliary shaft, a driving sprocket, a driven sprocket and a transmission belt. The micro motor is arranged on the inner side wall of the auxiliary box at the middle position, the micro motor is connected to one end of the auxiliary shaft, and the other end of the auxiliary shaft is rotatably connected to the inner side wall of the auxiliary box. A driving sprocket is arranged on the outside of the auxiliary shaft, and driven sprockets are symmetrically arranged on both sides of the driving sprocket, and a transmission belt is connected between the driving sprocket and the driven sprocket.

[0009] Preferably, the driven sprocket is arranged on the outside of the limiting shaft, both ends of the limiting shaft are rotatably connected to the side inner wall of the auxiliary box, a driving bevel gear is arranged on the outside of the limiting shaft, the side of the driving bevel gear is meshingly connected with the driven bevel gear, and protective covers are arranged on the outside of the driving bevel gear and the driven bevel gear.

[0010] Preferably, the side outer wall of the protective cover is connected to the side inner wall of the auxiliary box, the side outer wall of the driven bevel gear is provided with one end of a positioning shaft, the other end of the positioning shaft is rotatably connected to the side inner wall of the limiting filter plate, a cooling fan is provided outside the positioning shaft, and a ventilation groove is provided on the side outer wall of the auxiliary box located at the cooling fan, and the limiting filter plate is embedded in the inside of the limiting filter plate.

[0011] Preferably, the movable adjustment mechanism includes a positioning box, a driving motor, a reciprocating screw and an auxiliary strip. The positioning box is located on the side of the supporting box, and the side outer wall of the positioning box is provided with a driving motor. The driving motor is connected to one end of the reciprocating screw, and the other end of the reciprocating screw is rotatably connected to the side inner wall of the positioning box. An auxiliary strip is provided parallel to the side of the reciprocating screw, and both ends of the auxiliary strip are connected to the side inner wall of the positioning box.

[0012] Preferably, a limiting block is arranged outside the reciprocating screw rod and the auxiliary strip, one side outer wall of the limiting block is slidably connected to the side inner wall of the positioning box, the other side outer wall of the limiting block is provided with a protrusion, and the protrusion is connected to the side outer wall of the supporting box.

[0013] Preferably, the adjustment and balancing mechanism includes a mounting base plate, a first counterweight plate and a limiting T-slot, the bottom outer wall of the positioning box is symmetrically provided with the mounting base plate, the bottom outer wall of the mounting base plate is provided with the first counterweight plate, and the bottom outer wall of the first counterweight plate is symmetrically provided with a limiting T-slot.

[0014] Preferably, a second counterweight plate is arranged below the first counterweight plate, a limiting T-shaped strip is arranged on the top outer wall of the second counterweight plate, and the limiting T-shaped strip and the limiting T-shaped slot are snap-fittedly connected.

[0015] The beneficial effects of the utility model are:

[0016] 1. When the road bridge crack detector is in use, the limit sleeve, the limit piston rod, the resistance spring, the support back plate and the resistance pad are set, so that the device as a whole can automatically position the measuring probe by using the reaction force of the resistance spring, and further cooperate with the installation base plate, the first counterweight plate, the limit T-slot, the second counterweight plate and the limit T-strip. The device as a whole can achieve the overall shooting level of the device through the design of self-removable counterweight plate, and then the overall level of the device can be guaranteed for complex road conditions such as partial cracks on the road surface, thereby ensuring the accuracy of the final shooting result, and the overall practical effect is good.

[0017] 2. When the road bridge crack detector is in use, the internal electrical components of the detector will heat up due to long-term use. Once the device is overheated, it will affect the subsequent shooting results. The device is equipped with a micro motor, a limit shaft, a driving bevel gear, a driven bevel gear, a protective cover, a positioning shaft and a cooling fan, so that the device as a whole can dissipate heat by accelerating the airflow interaction speed. This design ensures the stability of the device as a whole during operation. Further, with the setting of the reciprocating screw, auxiliary strips and limit blocks, the device as a whole can adjust the shooting position during operation. This design avoids the phenomenon of multiple manual position adjustments, saves shooting work time, and has high overall flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 It is a three-dimensional structural diagram of the mobile adjustment mechanism of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the positioning support mechanism of the utility model;

[0021] Figure 4 It is a three-dimensional structural diagram of the heat dissipation maintenance mechanism of the utility model;

[0022] Figure 5 For the utility model Figure 4 A in the middle is an enlarged schematic diagram of the three-dimensional structure;

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the adjustment and balancing mechanism of the utility model.

[0024] In the figure: 1. support box; 2. measuring probe; 3. auxiliary box; 4. limiting sleeve; 5. limiting piston rod; 6. resistance spring; 7. support back plate; 8. resistance pad; 9. micro motor; 10. auxiliary shaft; 11. driving sprocket; 12. driven sprocket; 13. transmission belt; 14. limiting shaft; 15. driving bevel gear; 16. driven bevel gear; 17. protective cover; 18. positioning shaft; 19. cooling fan; 20. limiting filter plate; 21. positioning box; 22. driving motor; 23. reciprocating screw rod; 24. auxiliary strip; 25. limiting block; 26. mounting base plate; 27. first counterweight plate; 28. limiting T-slot; 29. ​​second counterweight plate; 30. limiting T-strip. DETAILED DESCRIPTION

[0025] 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.

[0026] When implementing: Figure 1-6 As shown, a road bridge crack detector includes a support box 1, a measuring probe 2 and an auxiliary box 3: the measuring probe 2 is located inside the support box 1, the top outer wall of the support box 1 is provided with the auxiliary box 3, and the support box 1 and the auxiliary box 3 are both arranged in a "U" shape structure, a positioning support mechanism is arranged inside the support box 1, a heat dissipation maintenance mechanism is arranged on the side of the positioning support mechanism, a movable adjustment mechanism is arranged on the side of the heat dissipation maintenance mechanism, and an adjustment balance mechanism is arranged on the side of the movable adjustment mechanism.

[0027] The positioning support mechanism includes a limiting sleeve 4, a limiting piston rod 5 and a resistance spring 6. The limiting sleeves 4 are symmetrically embedded and installed on the inner walls of both sides of the support box 1 at equal intervals. The limiting piston rod 5 is slidably installed inside the limiting sleeve 4. The resistance spring 6 is connected between the limiting piston rod 5 and the inner wall of the bottom end of the limiting sleeve 4. The extended end of the limiting piston rod 5 is arranged on the outside of the limiting sleeve 4, and the extended end of the limiting piston rod 5 is connected to the support back plate 7. The side outer wall of the support back plate 7 is provided with a resistance pad 8. When it is necessary to firmly support the measuring probe 2, it is first necessary to The measuring probe 2 is pressed against the middle position of the two contact pads 8. At this time, the contact pad 8 is driven by the squeezing force of the measuring probe 2 to move the supporting back plate 7, and then the movement of the supporting back plate 7 will automatically drive the limiting piston rod 5 to slide inside the limiting sleeve 4, and then the contact spring 6 is contracted by the contact force of the limiting piston rod 5 and simultaneously generates a reaction force to push the limiting piston rod 5 to move. When the limiting piston rod 5 moves, it will automatically drive the supporting back plate 7 to move and then drive the contact pad 8 to fit closely against the outer wall of the measuring probe 2, thereby achieving the fixed installation of the measuring probe 2.

[0028] The heat dissipation maintenance mechanism includes a micro motor 9, an auxiliary shaft 10, a driving sprocket 11, a driven sprocket 12 and a transmission belt 13. The micro motor 9 is arranged on the inner wall of the side of the auxiliary box 3 at the middle position. The micro motor 9 is connected to one end of the auxiliary shaft 10. The other end of the auxiliary shaft 10 is rotatably connected to the inner wall of the side of the auxiliary box 3. The outside of the auxiliary shaft 10 is arranged with a driving sprocket 11. The driven sprockets 12 are symmetrically arranged on both sides of the driving sprocket 11. The transmission belt 13 is connected between the driving sprocket 11 and the driven sprocket 12. 3, the driven sprocket 12 is arranged outside the limiting shaft 14, both ends of the limiting shaft 14 are rotatably connected to the side inner wall of the auxiliary box 3, a driving bevel gear 15 is arranged outside the limiting shaft 14, and the side of the driving bevel gear 15 is meshed with a driven bevel gear 16, and a protective cover 17 is arranged outside the driving bevel gear 15 and the driven bevel gear 16, and the side outer wall of the protective cover 17 is connected to the side inner wall of the auxiliary box 3, and one end of the positioning shaft 18 is arranged on the side outer wall of the driven bevel gear 16, and the other end of the positioning shaft 18 is The end is rotatably connected with the inner wall of the side of the limiting filter plate 20, a cooling fan 19 is arranged on the outside of the positioning shaft 18, and a ventilation slot is provided on the outer wall of the side of the auxiliary box 3 located at the cooling fan 19, and the limiting filter plate 20 is embedded in the limiting filter plate 20; when the device needs to be cooled after being used for a long time, the micro motor 9 needs to be turned on first. When the micro motor 9 is turned on, the auxiliary shaft 10 will be automatically driven to rotate and then the driving sprocket 11 will be driven. Then, the driving sprocket 11 will automatically drive the transmission belt 13 to drive and then the driven sprocket 12 will be driven. When the driven sprocket 12 rotates, the limiting shaft 14 will be automatically driven to rotate and then the driving bevel gear 15 will be driven. Then, the driving bevel gear 15 will automatically drive the driven bevel gear 16 to rotate. The setting of the protective cover 17 here supports the rotation of the driven bevel gear 16, and then the rotation of the driven bevel gear 16 will automatically drive the positioning shaft 18 to rotate and then drive the cooling fan 19 to rotate. When the cooling fan 19 rotates, the measuring probe 2 will be automatically cooled.

[0029] The mobile adjustment mechanism includes a positioning box 21, a drive motor 22, a reciprocating screw rod 23 and an auxiliary strip 24. The positioning box 21 is located on the side of the support box 1. The side outer wall of the positioning box 21 is provided with a drive motor 22. The drive motor 22 is connected to one end of the reciprocating screw rod 23. The other end of the reciprocating screw rod 23 is rotatably connected to the side inner wall of the positioning box 21. The side of the reciprocating screw rod 23 is provided with an auxiliary strip 24 in parallel. Both ends of the auxiliary strip 24 are connected to the side inner wall of the positioning box 21. A limit block 25 is provided outside the reciprocating screw rod 23 and the auxiliary strip 24. One side outer wall of the limit block 25 is connected to the positioning box 21. The side inner wall is slidably connected, and the outer wall on the other side of the limit block 25 is provided with a protrusion, and the protrusion is connected to the side outer wall of the support box 1; when the shooting position of the measuring probe 2 needs to be adjusted, the driving motor 22 needs to be turned on first. When the driving motor 22 is turned on, it will automatically drive the reciprocating screw 23 to rotate and then drive the limit block 25 to move. Here, due to the setting of the auxiliary strip 24, the reciprocating screw 23 will only drive the limit block 25 to realize the horizontal sliding trajectory movement when rotating. When the limit block 25 moves, it will automatically drive the protrusion to move, thereby driving the support box 1 to move, and then driving the measuring probe 2 to move.

[0030] The adjustment and balancing mechanism includes an installation base plate 26, a first counterweight plate 27 and a limiting T-slot 28. The bottom outer wall of the positioning box 21 is symmetrically provided with the installation base plate 26, the bottom outer wall of the installation base plate 26 is provided with the first counterweight plate 27, and the bottom outer wall of the first counterweight plate 27 is symmetrically provided with a limiting T-slot 28. A second counterweight plate 29 is provided below the first counterweight plate 27, and a limiting T-slot 30 is provided on the top outer wall of the second counterweight plate 29. The limiting T-slot 30 and the limiting T-slot 28 are snap-fitted together. When the second counterweight plate 29 needs to be removed from below the first counterweight plate 27, it is only necessary to pull the second counterweight plate 29 until the limiting T-slot 30 is completely separated from the limiting T-slot 28.

[0031] When the utility model is in use, when it is necessary to firmly support the measuring probe 2, the measuring probe 2 needs to be firstly pressed against the middle position of the two contact pads 8. At this time, the contact pad 8 is driven by the extrusion force of the measuring probe 2 to drive the support back plate 7 to move, and then the movement of the support back plate 7 will automatically drive the limiting piston rod 5 to slide inside the limiting sleeve 4, and then the contact spring 6 is in a contracted state due to the contact force of the limiting piston rod 5 and synchronously generates a reaction force to push the limiting piston rod 5 to move. When the limiting piston rod 5 moves, it will automatically drive the support back plate 7 to move and then drive the contact pad 8 to fit closely to the outer wall of the measuring probe 2, thereby achieving the fixed installation of the measuring probe 2; when the device needs to be cooled after being used for a long time, the micro motor 9 needs to be turned on at this time. When the micro motor 9 is turned on, it will automatically drive the auxiliary shaft 10 to rotate and then drive the driving sprocket 11 to rotate. Then, the driving sprocket 11 rotates and automatically drives the transmission belt 13 to transmit and then drives the driven sprocket 12 to rotate. When the driven sprocket 12 rotates, it will automatically drive the limiting shaft 14 to rotate. The driving bevel gear 15 is driven to rotate, and then the driving bevel gear 15 rotates, which automatically drives the driven bevel gear 16 to rotate. The setting of the protective cover 17 here supports the rotation of the driven bevel gear 16, and then the rotation of the driven bevel gear 16 automatically drives the positioning shaft 18 to rotate and then drives the cooling fan 19 to rotate. When the cooling fan 19 rotates, the measuring probe 2 is automatically cooled down. When the shooting position of the measuring probe 2 needs to be adjusted, the driving motor 22 needs to be turned on first. When the driving motor 22 is turned on, it will automatically drive the reciprocating screw 23 to rotate and then drive the limit block 25 to move. Here, due to the setting of the auxiliary bar 24, the reciprocating screw 23 will only drive the limit block 25 to move along the sliding track in the horizontal direction when it rotates. When the limit block 25 moves, it will automatically drive the convex block to move and then drive the support box 1 to move and then drive the measuring probe 2 to move. When the second counterweight plate 29 needs to be removed from the bottom of the first counterweight plate 27, it is only necessary to pull the second counterweight plate 29 until the limit T-shaped bar 30 is completely separated from the limit T-shaped groove 28.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A road bridge crack detector, characterized in that: The invention comprises a support box (1), a measuring probe (2) and an auxiliary box (3): the measuring probe (2) is located inside the support box (1), the top outer wall of the support box (1) is provided with an auxiliary box (3), and the support box (1) and the auxiliary box (3) are both arranged in a "U"-shaped structure; a positioning support mechanism is arranged inside the support box (1), a heat dissipation maintenance mechanism is arranged on the side of the positioning support mechanism, a movable adjustment mechanism is arranged on the side of the heat dissipation maintenance mechanism, and an adjustment balance mechanism is arranged on the side of the movable adjustment mechanism.

2. A road bridge crack detector according to claim 1, characterized in that: The positioning support mechanism comprises a limiting sleeve (4), a limiting piston rod (5) and a resisting spring (6); the limiting sleeves (4) are symmetrically and evenly spacedly embedded in the inner walls of both sides of the support box (1); the limiting piston rod (5) is slidably installed inside the limiting sleeve (4); and a resisting spring (6) is connected between the limiting piston rod (5) and the inner wall of the bottom end of the limiting sleeve (4).

3. A road bridge crack detector according to claim 2, characterized in that: The extended end of the limiting piston rod (5) is arranged outside the limiting sleeve (4), and the extended end of the limiting piston rod (5) is connected to the supporting back plate (7), and the side outer wall of the supporting back plate (7) is provided with a resistance pad (8).

4. A road bridge crack detector according to claim 1, characterized in that: The heat dissipation maintenance mechanism comprises a micro motor (9), an auxiliary shaft (10), a driving sprocket (11), a driven sprocket (12) and a transmission belt (13); the micro motor (9) is arranged on the inner wall of the side of the auxiliary box (3) at a middle position; the micro motor (9) is connected to one end of the auxiliary shaft (10); the other end of the auxiliary shaft (10) is rotatably connected to the inner wall of the side of the auxiliary box (3); the driving sprocket (11) is arranged outside the auxiliary shaft (10); driven sprockets (12) are symmetrically arranged on both sides of the driving sprocket (11); and a transmission belt (13) is connected between the driving sprocket (11) and the driven sprocket (12).

5. A road bridge crack detector according to claim 4, characterized in that: The driven sprocket (12) is arranged outside the limiting shaft (14), both ends of the limiting shaft (14) are rotatably connected to the inner wall of the side of the auxiliary box (3), a driving bevel gear (15) is arranged outside the limiting shaft (14), the side of the driving bevel gear (15) is meshingly connected with a driven bevel gear (16), and protective covers (17) are arranged outside the driving bevel gear (15) and the driven bevel gear (16).

6. A road bridge crack detector according to claim 5, characterized in that: The side outer wall of the protective cover (17) is connected to the side inner wall of the auxiliary box (3); the side outer wall of the driven bevel gear (16) is provided with one end of a positioning shaft (18); the other end of the positioning shaft (18) is rotatably connected to the side inner wall of the limiting filter plate (20); a heat dissipation fan (19) is provided outside the positioning shaft (18); a ventilation slot is provided through the side outer wall of the auxiliary box (3) located at the heat dissipation fan (19); and the limiting filter plate (20) is embedded in the inside of the limiting filter plate (20).

7. A road bridge crack detector according to claim 1, characterized in that: The movable adjustment mechanism comprises a positioning box (21), a driving motor (22), a reciprocating screw rod (23) and an auxiliary strip (24); the positioning box (21) is located on the side of the supporting box (1); the driving motor (22) is arranged on the side outer wall of the positioning box (21); the driving motor (22) is connected to one end of the reciprocating screw rod (23); the other end of the reciprocating screw rod (23) is rotatably connected to the side inner wall of the positioning box (21); the side of the reciprocating screw rod (23) is parallelly arranged with an auxiliary strip (24); both ends of the auxiliary strip (24) are connected to the side inner wall of the positioning box (21).

8. A road bridge crack detector according to claim 7, characterized in that: A limiting block (25) is arranged outside the reciprocating screw rod (23) and the auxiliary strip (24), one side outer wall of the limiting block (25) is slidably connected to the side inner wall of the positioning box (21), and the other side outer wall of the limiting block (25) is provided with a protrusion, and the protrusion is connected to the side outer wall of the supporting box (1).

9. A road bridge crack detector according to claim 7, characterized in that: The balancing adjustment mechanism comprises a mounting base plate (26), a first counterweight plate (27) and a limiting T-shaped slot (28); the bottom outer wall of the positioning box (21) is symmetrically provided with the mounting base plate (26); the bottom outer wall of the mounting base plate (26) is provided with the first counterweight plate (27); and the bottom outer wall of the first counterweight plate (27) is symmetrically provided with a limiting T-shaped slot (28).

10. A road bridge crack detector according to claim 9, characterized in that: A second counterweight plate (29) is arranged below the first counterweight plate (27), and a limiting T-shaped strip (30) is arranged on the top outer wall of the second counterweight plate (29), and the limiting T-shaped strip (30) and the limiting T-shaped groove (28) are snap-fittedly connected.

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