Obstacle crossing device of bridge detection platform

Abstract

The utility model relates to a bridge detection platform obstacle crossing device which comprises a left rectangular supporting block and a right rectangular supporting block, through grooves penetrating through the front end face and the rear end face are formed in the opposite faces of the two supporting blocks respectively, an upper C-shaped plate and a lower C-shaped plate which are horizontally arranged are arranged between the two through grooves, and each C-shaped plate is provided with a C-shaped groove penetrating through the upper end face and the lower end face. Through holes penetrating through the upper end face and the lower end face of the right side supporting block are formed in the middles of the upper inner end face and the lower inner end face of the right side through groove correspondingly, and a pin shaft is inserted into each through hole; the inner side ends of the pin shafts move inwards and can be inserted into the C-shaped grooves in the corresponding sides. The C-shaped plates on the upper side and the lower side rotate alternately, it is guaranteed that the supporting block on the right side does not rotate synchronously along with the C-shaped plates all the time, the reversing mode is more stable and faster, the overall space occupancy rate of the barrier crossing structure is small, and the barrier crossing structure can adapt to different working condition environments and is higher in practicability.

Description

Technical Field

[0001] The utility model relates to the field of bridge detection, in particular to an obstacle-passing device for a bridge detection platform. Background Art

[0002] During the bridge inspection process, it is necessary to build an inspection platform when inspecting the outside or bottom of the bridge. However, the platform will interfere with the street lights when moving with the traveling mechanism, so the platform needs to be retracted and then extended again, which greatly reduces the inspection efficiency. In the prior art, a double-arm obstacle-passing mechanism is mostly used, which drives two sets of connecting arms to alternately disconnect and connect during the travel process through a hydraulic cylinder to complete the obstacle-passing. However, this mechanism is easily affected by the distance between obstacles, and the center of gravity of the platform is skewed from the support arm, which requires a higher connection strength.

[0003] A bridge inspection vehicle disclosed in announcement number CN213296057U can overcome obstacles by setting up two sets of inner and outer C-shaped connection devices that rotate alternately, which can solve the problems of limited obstacle intervals and space. However, the operation of this solution is relatively cumbersome. Since the overall gravity of the platform is large, the movement resistance of the fixed rod and the connector is huge, the movement method is relatively laborious, and the support is provided by the fixed rod, and the support strength is limited. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model adopts a bridge inspection platform obstacle passing device, which solves the problems in the prior art that the obstacle passing equipment occupies a large space, has high obstacle spacing requirements and the strength of the connecting mechanism is weak.

[0005] The technical solution is a bridge inspection platform obstacle crossing device, including two rectangular support blocks on the left and right, and through grooves penetrating the front and rear end surfaces are respectively provided on opposite sides of the two support blocks, and two horizontally placed C-shaped plates are arranged between the two through grooves, and each C-shaped plate can rotate around an axis, and each C-shaped plate has a C-shaped groove penetrating the upper and lower end surfaces, the C-shaped groove is coaxial with the C-shaped plate, and the central angle of the arc trajectory of the C-shaped groove is 180°, and a vertical axis is respectively fixed in the middle of the upper and lower end surfaces of the left through groove, and the inner ends of the vertical axis are respectively placed in the C-shaped grooves of the C-shaped plates on the corresponding sides and are slidably connected to the C-shaped grooves, and through holes penetrating the upper and lower end surfaces of the right support block are respectively provided in the middle of the upper and lower inner end surfaces of the right through groove, and a pin is inserted in each through hole, and the inner end of the pin can be moved inward and inserted into the C-shaped groove on the corresponding side.

[0006] A motor is fixed at the upper and lower ends of the support block on the left side, the motor shaft is vertically facing the inside of the support block and a gear is fixed on the shaft. The outer edge surfaces of the two C-shaped plates are toothed surfaces and are respectively engaged with the gears on the corresponding sides. The motor can drive the C-shaped plate to rotate around the axis through the gears.

[0007] The upper and lower end surfaces of the C-shaped plate are respectively provided with annular grooves, and the upper and lower end surfaces of each through groove are rotatably connected with multiple balls. Multiple balls are evenly distributed along the circumference between the two C-shaped plates, and the inner ends of all balls are always placed in the annular grooves on the corresponding sides.

[0008] The upper and lower end surfaces of the support block on the right are respectively fixed with hydraulic cylinders, and the telescopic rods of the hydraulic cylinders are respectively fixedly connected to the pins on the corresponding sides, and the hydraulic cylinders can drive the pins to move up and down along the through holes.

[0009] The part of the outer edge surface of the vertical shaft located in the C-shaped groove is respectively connected to a rotating wheel of the shaft through a bearing, and the outer edge surface of the rotating wheel is always in contact with the inner wall of the C-shaped groove.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1. By setting the upper and lower C-shaped plates to rotate alternately, the upper and lower C-shaped plates are limited in rotation by the upper and lower pins respectively, ensuring that the right support block never rotates synchronously with the C-shaped plate. While connecting the support blocks on both sides, the reversal of the upper and lower C-shaped plate openings is achieved, and the reversal method is smoother and faster;

[0012] 2. The cooperation between the ball and the annular groove makes the rotation of the C-shaped plate more labor-saving;

[0013] 3. Supporting by non-C-shaped plates can effectively increase the connection strength while reducing the center of gravity offset during rotation, greatly improving the safety factor;

[0014] 4. Compared with traditional double-arm obstacle crossing equipment, the utility model has a compact structure, a small overall space occupancy rate, can adapt to different working conditions, and is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the utility model.

[0016] Figure 2 It is a top view of the utility model.

[0017] Figure 3 It is a front sectional view of the utility model.

[0018] Figure 4 It is a top view of the C-shaped plate of the utility model. DETAILED DESCRIPTION

[0019] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] Depend on Figures 1 to 4It is given that the utility model includes two rectangular support blocks 1 on the left and right, and the opposite sides of the two support blocks 1 are respectively provided with through grooves 2 that penetrate the front and rear end surfaces, and two upper and lower horizontally placed C-shaped plates 3 are arranged between the two through grooves, each C-shaped plate 3 can rotate around the axis, and each C-shaped plate 3 is provided with a C-shaped groove 4 that penetrates the upper and lower end surfaces, the C-shaped groove 4 is coaxial with the C-shaped plate 3, and the central angle of the arc trajectory line of the C-shaped groove 4 is 180°, and a vertical axis 5 is fixed in the middle of the upper and lower end surfaces of the left through groove 2, and the inner ends of the vertical axis 5 are respectively placed in the C-shaped groove 4 of the corresponding side C-shaped plate 3 and are slidably connected to the C-shaped groove 4, and through holes 6 that penetrate the upper and lower end surfaces of the right support block 1 are respectively provided in the middle of the upper and lower inner end surfaces of the right through groove 2, and a pin shaft 7 is inserted in each through hole 6, and the inner end of the pin shaft 7 can be moved inward and inserted into the corresponding side C-shaped groove 4.

[0021] A motor 8 is fixed to the upper and lower ends of the support block 1 on the left side, respectively. The rotating shaft of the motor 8 is vertically facing the inner side of the support block 1 and a gear 9 is fixed on the rotating shaft. The outer edge surfaces of the two C-shaped plates 3 are toothed surfaces and are respectively engaged with the gears 9 on the corresponding sides. The motor 8 can drive the C-shaped plate 3 to rotate around the axis through the gear 9.

[0022] The upper and lower end surfaces of the C-shaped plate 3 are respectively provided with annular grooves 10, and the upper and lower end surfaces of each through groove 2 are rotatably connected with multiple balls 11. Multiple balls 11 are evenly distributed along the circumference between the two C-shaped plates 3, and the inner ends of all balls 11 are always placed in the annular grooves 10 on the corresponding sides.

[0023] The upper and lower end surfaces of the support block 1 on the right are respectively fixed with hydraulic cylinders 12 , and the telescopic rods of the hydraulic cylinders 12 are respectively fixedly connected to the pin shafts 7 on the corresponding sides. The hydraulic cylinders 12 can drive the pin shafts 7 to move up and down along the through holes 6 .

[0024] The portion of the outer edge of the vertical shaft 5 located in the C-shaped groove 4 is respectively connected to a rotating wheel 13 through a bearing, and the outer edge of the rotating wheel 13 is always in contact with the inner wall of the C-shaped groove 4.

[0025] When the utility model is in use, the left support block 1 is fixedly connected to the bridge deck travel mechanism, the right support block 1 is connected to the support platform under the bridge, and the openings of the upper and lower C-shaped plates 3 are aligned with the street lamp. When the C-shaped plate 3 moves to the street lamp position, the street lamp can enter the inner side of the C-shaped plate 3 through the opening of the C-shaped plate 3, and then the travel mechanism stops moving forward, and the upper hydraulic cylinder 12 is started to move the upper pin shaft 7 upward out of the C-shaped groove 4, and then the upper motor 8 is started. Under the limiting effect of the vertical shaft 5, the motor 8 drives the upper C-shaped plate 3 to rotate 180 degrees around the axis through the gear 9. Since the right support block 1 is always limited by the lower pin shaft 7 and the right end of the C-shaped groove 4, the right The support block 1 cannot rotate synchronously with the upper C-shaped plate 3; then the upper and lower hydraulic cylinders 12 are controlled at the same time to drive the upper and lower pin shafts 7 to move downward at the same time, the upper pin shaft 7 is reinserted into the C-shaped groove 4, and the lower pin shaft 7 is moved out of the C-shaped groove 4, and then the lower motor 8 is started to drive the lower C-shaped plate 3 to rotate 180°. At this time, the right support block 1 is again limited by the upper pin shaft 7 and the right end of the C-shaped groove 4 and cannot rotate with the lower C-shaped plate 3. After the lower C-shaped plate 3 completes its rotation, the openings of the upper and lower C-shaped plates 3 overlap, and the traveling mechanism continues to drive the left support block 1 forward, and the street lamp can be moved out through the openings of the two C-shaped plates 3 again, thus completing the obstacle-passing operation of the street lamp.

[0026] The utility model sets the C-shaped plates 3 on the upper and lower sides to rotate alternately, and uses the pin shafts 7 on the upper and lower sides to limit the rotation of the C-shaped plates 3 on the upper and lower sides, so as to ensure that the right support block 1 never rotates synchronously with the C-shaped plates 3. While connecting the support blocks 1 on both sides, the reversal of the openings of the upper and lower C-shaped plates 3 is achieved. The reversal method is smoother and faster, and the overall space occupancy rate of the obstacle-passing structure is small, it can adapt to different working conditions and environments, and it is more practical.

Claims

1. A bridge inspection platform obstacle crossing device, characterized in that: The invention comprises two rectangular support blocks (1) on the left and right sides, and through grooves (2) penetrating the front and rear end surfaces are respectively provided on opposite sides of the two support blocks (1). Two upper and lower horizontally placed C-shaped plates (3) are arranged between the two through grooves. Each C-shaped plate (3) can rotate around an axis. Each C-shaped plate (3) is provided with a C-shaped groove (4) penetrating the upper and lower end surfaces. The C-shaped groove (4) is coaxial with the C-shaped plate (3), and the center angle of the arc trajectory of the C-shaped groove (4) is (180) degrees. A vertical shaft (5) is fixed in the middle of the upper and lower end surfaces of the side through groove (2), and the inner ends of the vertical shaft (5) are respectively placed in the C-shaped groove (4) of the corresponding side C-shaped plate (3) and are slidably connected to the C-shaped groove (4). Through holes (6) penetrating the upper and lower end surfaces of the right support block (1) are respectively opened in the middle of the upper and lower inner end surfaces of the right through groove (2), and a pin shaft (7) is inserted in each through hole (6). The inner end of the pin shaft (7) can be inserted in the corresponding side C-shaped groove (4) by moving inward.

2. The bridge inspection platform obstacle crossing device according to claim 1, characterized in that: A motor (8) is fixed to the upper and lower ends of the support block (1) on the left side, respectively. The rotation shaft of the motor (8) is vertically oriented toward the inner side of the support block (1) and a gear (9) is fixed to the rotation shaft. The outer edge surfaces of the two C-shaped plates (3) are toothed surfaces and are respectively meshed with the gears (9) on the corresponding sides. The motor (8) can drive the C-shaped plates (3) to rotate around the axis through the gears (9).

3. The bridge inspection platform obstacle crossing device according to claim 1, characterized in that: The upper and lower end surfaces of the C-shaped plate (3) are respectively provided with annular grooves (10), and the upper and lower end surfaces of each through groove (2) are respectively rotatably connected to a plurality of balls (11), and a plurality of balls (11) are evenly distributed along the circumference between the two C-shaped plates (3), and the inner ends of all the balls (11) are always placed in the annular grooves (10) on the corresponding sides.

4. The bridge inspection platform obstacle crossing device according to claim 1, characterized in that: The upper and lower end surfaces of the support block (1) on the right side are respectively fixed with hydraulic cylinders (12), and the telescopic rods of the hydraulic cylinders (12) are respectively fixedly connected to the pin shafts (7) on the corresponding sides, and the hydraulic cylinders (12) can drive the pin shafts (7) to move up and down along the through holes (6).

5. The bridge inspection platform obstacle crossing device according to claim 1, characterized in that: The portion of the outer edge of the vertical shaft (5) located in the C-shaped groove (4) is respectively connected to a rotating wheel (13) through a bearing, and the outer edge of the rotating wheel (13) is always in contact with the inner wall of the C-shaped groove (4).

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