Movable safety protection platform for bridge support padstone

Abstract

The utility model relates to a safety protection platform, in particular to a bridge support padstone movable type safety protection platform which comprises a frame and a protection platform arranged on the frame. An axle is rotationally installed on the frame, and wheels are fixedly installed at the two ends of the axle. The vehicle is characterized in that a lifting mechanism is arranged on the vehicle frame, and the lifting mechanism can drive the protection platform to vertically ascend or descend; a supporting mechanism is arranged on the frame, a supporting column is connected to the supporting mechanism, and the supporting mechanism can drive the supporting column to be away from or close to the frame when the lifting mechanism acts; the frame is further provided with a limiting mechanism, and the limiting mechanism can limit rotation of the axle when the lifting mechanism acts, so that the wheels cannot rotate. Through mutual cooperation of the lifting mechanism, the supporting mechanism and the limiting mechanism, stable and safe lifting of the protection platform is achieved, so that support padstone construction is smoother.

Description

Technical Field

[0001] The utility model relates to a safety protection platform, in particular to a movable safety protection platform for a bridge support pedestal. Background Art

[0002] Bridge support sills are located at the connection between abutments and piers, and are cast in-situ or precast concrete components. They feature small concrete volumes, high stress concentration, densely distributed reinforcement, and require high construction precision.

[0003] When using precast concrete support sills, due to the generally high height of the bridge, it is difficult for construction workers to transport the sills to the cap beams or abutments by hand. Therefore, mechanical handling is often used for transportation. Common handling machines include cranes or passenger and freight elevators.

[0004] When using a crane to transport the bearing pads, due to the small space for stacking materials on the abutment, the crane needs to lift the small bearing pads one by one, making the construction plan uneconomical and low in efficiency; and using a passenger and freight elevator requires a large number of installation projects, which greatly increases the construction cost. Utility Model Content

[0005] The purpose of the utility model is to provide a movable safety protection platform for bridge support pedestals to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A mobile safety protection platform for a bridge support pedestal comprises a frame and a protection platform arranged on the frame; an axle is rotatably mounted on the frame, and wheels are fixedly mounted at both ends of the axle;

[0008] The frame is provided with a lifting mechanism, which can drive the protective platform to rise or fall vertically;

[0009] A support mechanism is provided on the vehicle frame, and a support column is connected to the support mechanism, and the support mechanism can drive the support column away from or close to the vehicle frame when the lifting mechanism is in motion;

[0010] A limiting mechanism is also provided on the vehicle frame, and the limiting mechanism can limit the rotation of the axle when the lifting mechanism is in action, so that the wheel cannot rotate.

[0011] The mobile safety protection platform for bridge support pedestals as described above: the lifting mechanism includes a motor fixedly mounted on the frame, the output end of the motor fixedly connected to a first gear; a first rotating shaft rotatably mounted on the frame, and a second gear meshing with the first gear fixedly mounted on the first rotating shaft;

[0012] A longitudinal threaded protrusion is fixedly mounted on the first rotating shaft, an internal threaded sleeve block is threadedly connected to the longitudinal threaded protrusion, a connecting rod is fixedly mounted on the internal threaded sleeve block, and sliders are fixedly mounted on both ends of the connecting rod; a guide rod is fixedly mounted on the frame, and a guide groove is provided on the guide rod for sliding engagement with the slider.

[0013] The mobile safety protection platform for bridge support pedestals as described above: the lifting mechanism also includes a first articulated rod rotatably mounted on the connecting rod, the first articulated rod is hinged with a second articulated rod rotatably connected to the frame, multiple groups of the first articulated rods and multiple groups of the second articulated rods are hinged to form a scissors-type structure, the second articulated rod in the scissors-type structure close to the protection platform is rotatably mounted on the protection platform, and the first articulated rod in the scissors-type structure close to the protection platform is slidably mounted on the protection platform.

[0014] The mobile safety protection platform for bridge support pedestals as described above: the support mechanism includes four telescopic rods slidably mounted on the frame; the two ends of the first rotating shaft are connected to the second rotating shaft through a bevel gear set, and the second rotating shaft is fixedly mounted with a transverse threaded protrusion with a threaded connection to the telescopic rod; the support column is fixedly mounted on the end of the telescopic rod away from the frame.

[0015] The mobile safety protection platform for bridge support pedestals as described above: the limiting mechanism includes a limiting ring fixedly mounted on the frame, and a plurality of groups of first protruding blocks fixedly mounted on the limiting ring; a rotating ring is slidably mounted on the axle, and a plurality of groups of second protruding blocks that can cooperate with the first protruding blocks are fixedly mounted on the rotating ring; a baffle is fixedly mounted on the axle, and a spring is fixedly mounted on the baffle, and the two ends of the spring respectively conflict with the rotating ring and the baffle; a trigger plate that cooperates with the rotating ring is fixedly mounted on the slider close to the rotating ring.

[0016] The bridge support pedestal movable safety protection platform as described above: a guardrail is fixedly installed on the protection platform, and the guardrail is made of metal.

[0017] The bridge support pedestal movable safety protection platform as described above: the wheels are provided with a plurality of sets of anti-skid grooves, which can prevent the wheels from sliding friction with the ground.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the frame is transferred by the wheels, and can be transferred to wherever it is needed, which greatly reduces the installation work and construction costs; the protective platform is lifted and lowered by the lifting mechanism, and the support column is driven away from or close to the frame by the support mechanism during the lifting process, so that the support column can stably support the frame and the protective platform to prevent overturning; the axle rotation is limited by the limiting mechanism, so that the wheels cannot rotate when the protective platform rises; the protective platform is stably and safely lifted by the mutual cooperation of the lifting mechanism, the support mechanism and the limiting mechanism, so that the construction of the support shim is smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of the mobile safety protection platform for bridge support pedestals.

[0020] Figure 2 This is a structural schematic diagram of the mobile safety protection platform for bridge support pedestals from another perspective.

[0021] Figure 3 This is a structural diagram of the lifting mechanism in the mobile safety protection platform of the bridge support pedestal.

[0022] Figure 4 This is a structural diagram of the limiting mechanism in the mobile safety protection platform of the bridge support pedestal.

[0023] Figure 5 This is a structural diagram of the rotating ring and limiting ring in the mobile safety protection platform of the bridge support pedestal.

[0024] Figure 6 This is a structural diagram of the support mechanism in the mobile safety protection platform of the bridge support pedestal.

[0025] In the figure: 1, frame; 101, limiting ring;

[0026] 2. Protection platform;

[0027] 3. Motor; 301. First gear;

[0028] 4. First rotating shaft; 401. Second gear; 402. Longitudinal threaded protrusion;

[0029] 5. Internal thread sleeve block;

[0030] 6. Connecting rod; 601. Slider; 602. Trigger plate;

[0031] 7. Guide rod; 701. Guide groove;

[0032] 8. Axle; 801. Rotating ring; 802. Baffle; 803. Spring;

[0033] 9. Second rotating shaft; 901. Horizontal threaded protrusion;

[0034] 10. Telescopic rod;

[0035] 11. Support column;

[0036] 12. Scissor-type structure; 1201. First hinged rod; 1202. Second hinged rod. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] See also Figures 1 to 6 As an embodiment of the present invention, the bridge support pedestal movable safety protection platform includes a frame 1 and a protection platform 2 provided on the frame 1; an axle 8 is rotatably mounted on the frame 1, and wheels are fixedly mounted at both ends of the axle 8;

[0039] The frame 1 is provided with a lifting mechanism, which can drive the protective platform 2 to rise or fall vertically;

[0040] A support mechanism is provided on the frame 1, and a support column 11 is connected to the support mechanism. The support mechanism can drive the support column 11 away from or close to the frame 1 when the lifting mechanism is in motion;

[0041] A limiting mechanism is also provided on the vehicle frame 1 , and the limiting mechanism can limit the rotation of the axle 8 when the lifting mechanism is in operation, so that the wheels cannot rotate.

[0042] In this embodiment, the bridge support pedestal is placed on the protective platform 2, and the frame 1 is pushed to drive the wheels to rotate, thereby driving the axle 8 to rotate, so as to move the frame 1 and the support pedestal to the place where construction is required.

[0043] The protective platform 2 is driven to rise by the lifting mechanism to raise the support pedestal stone to a height flush with the cap beam, so as to facilitate the construction workers to transfer the support pedestal stone.

[0044] To prevent the protective platform 2 from tipping over during its ascent, the support mechanism gradually moves the support columns 11 away from the vehicle frame 1 as the lifting mechanism operates. Because there is a small gap between the support columns 11 and the ground, they do not come into contact with the ground during their ascent. This increased distance between the support columns 11 and the vehicle frame 1 provides the vehicle frame 1 with a certain degree of support capacity. If the protective platform 2 tilts during its ascent, the support columns 11 in the direction of the tilt will immediately contact the ground, preventing tipping.

[0045] In order to prevent the frame 1 from moving during the rising process of the protective platform 2, the limiting mechanism will limit the rotation of the axle 8, thereby locking the wheels to prevent the frame 1 from being displaced and causing a safety accident.

[0046] The protective platform 2 can be stably and safely raised by the cooperation of the lifting mechanism, the supporting mechanism and the limiting mechanism, so that the construction of the support pad stone can be smoother.

[0047] As a further solution of the present invention, the lifting mechanism includes a motor 3 fixedly mounted on the frame 1, the output end of the motor 3 is fixedly connected to a first gear 301; a first rotating shaft 4 is rotatably mounted on the frame 1, and a second gear 401 meshing with the first gear 301 is fixedly mounted on the first rotating shaft 4;

[0048] A longitudinal threaded protrusion 402 is fixedly mounted on the first rotating shaft 4, an internal threaded sleeve block 5 is threadedly connected to the longitudinal threaded protrusion 402, a connecting rod 6 is fixedly mounted on the internal threaded sleeve block 5, and sliders 601 are fixedly mounted on both ends of the connecting rod 6; a guide rod 7 is fixedly mounted on the frame 1, and a guide groove 701 is provided on the guide rod 7 for sliding engagement with the slider 601.

[0049] In this embodiment, when the motor 3 rotates, the first gear 301 rotates synchronously, thereby driving the second gear 401 to rotate, and the first rotating shaft 4 also rotates accordingly. When the first rotating shaft 4 rotates, the longitudinal threaded protrusion 402 drives the internally threaded sleeve block 5 to move through the threaded engagement, thereby driving the connecting rod 6 to move synchronously, causing the slider 601 to slide within the guide groove 701. When the motor 3 stops rotating, the threaded engagement between the longitudinal threaded protrusion 402 and the internally threaded sleeve block 5 keeps the slider 601 in position. This ensures that when the lifting mechanism is in operation, the protective platform 2 will not suddenly fall due to the weight of the support shim, thereby ensuring the safety of the support shim construction.

[0050] As a further solution of the present invention, the lifting mechanism also includes a first articulated rod 1201 rotatably mounted on the connecting rod 6, and a second articulated rod 1202 rotatably connected to the frame 1 is hinged on the first articulated rod 1201, and multiple groups of the first articulated rods 1201 and multiple groups of the second articulated rods 1202 are hinged to form a scissors-type structure 12, and the second articulated rod 1202 in the scissors-type structure 12 is rotatably mounted on the protective platform 2, and the first articulated rod 1201 in the scissors-type structure 12 is slidably mounted on the protective platform 2.

[0051] In this embodiment, when the connecting rod 6 slides, the first articulated rod 1201 rotates on the connecting rod 6, thereby increasing or decreasing the angle between the first articulated rod 1201 and the second articulated rod 1202, so that the angle between the second articulated rod 1202 and the frame 1 decreases or increases. Through the transmission of multiple sets of scissor-type structures 12, the first articulated rod 1201 slidingly connected to the protective platform 2 slides, thereby increasing or decreasing the angle between it and the second articulated rod 1202 rotationally connected to the protective platform 2.

[0052] When the angle between the first hinged rod 1201 and the second hinged rod 1202 is small, the protective platform 2 will gradually rise under the action of multiple sets of scissor-type structures 12. When the angle between the first hinged rod 1201 and the second hinged rod 1202 increases, the protective platform 2 will gradually descend under the action of multiple sets of scissor-type structures 12.

[0053] As a further solution of the present invention, the support mechanism includes four telescopic rods 10 slidably mounted on the frame 1; the two ends of the first rotating shaft 4 are connected to the second rotating shaft 9 through a bevel gear set, and the second rotating shaft 9 is fixedly mounted with a transverse threaded protrusion 901 threadedly connected to the telescopic rod 10; the support column 11 is fixedly mounted on the end of the telescopic rod 10 away from the frame 1.

[0054] In this embodiment, the rotating first rotating shaft 4 will drive the second rotating shaft 9 to rotate through the bevel gear set, and the transverse threaded protrusion 901 will cooperate with the thread of the telescopic rod 10 so that the telescopic rod 10 will gradually move away from or approach the first rotating shaft 4 in the length direction of the second rotating shaft 9; when the lifting mechanism drives the protective platform 2 to rise, the telescopic rod 10 will gradually move away from the first rotating shaft 4, thereby driving the support column 11 away from the frame 1, so that the support effect between the support column 11 and the telescopic rod 10 is increased.

[0055] As a further solution of the present invention, the limiting mechanism includes a limiting ring 101 fixedly mounted on the frame 1, and multiple groups of first protruding blocks are fixedly mounted on the limiting ring 101; a rotating ring 801 is slidably mounted on the axle 8, and multiple groups of second protruding blocks that can cooperate with the first protruding blocks are fixedly mounted on the rotating ring 801; a baffle 802 is fixedly mounted on the axle 8, and a spring 803 is fixedly mounted on the baffle 802, and the two ends of the spring 803 respectively conflict with the rotating ring 801 and the baffle 802; a trigger plate 602 that cooperates with the rotating ring 801 is fixedly mounted on the slider 601 close to the rotating ring 801.

[0056] In this embodiment, when the protective platform 2 is at the lowest point of rising or falling, the trigger plate 602 will conflict with the rotating ring 801, and the trigger plate 602 will push the rotating ring 801 close to the baffle 802, and the spring 803 will be compressed. At this time, the axle 8 can rotate normally.

[0057] When the lifting mechanism drives the protective platform 2 to rise, the slider 601 will slide in the guide groove 701, thereby causing the trigger plate 602 to disengage from the rotating ring 801. At this time, the elastic force of the spring 803 will push the rotating ring 801 close to the limit ring 101, and the first protruding block and the second protruding block will engage with each other, making the rotating ring 801 unable to rotate, thereby limiting the rotation of the axle 8 and preventing the wheel from rolling on the ground, thereby ensuring the safety of the support pedestal construction.

[0058] As a further solution of the present invention, a protective railing is fixedly installed on the protective platform 2, and the protective railing is made of metal.

[0059] In this embodiment, in order to prevent the support pedestal stone or other construction equipment from falling from the raised protection platform 2, a protective railing is used to block the support pedestal stone or other construction equipment to ensure that no falling objects from high altitude will occur during the construction of the support pedestal stone.

[0060] As a further solution of the present invention, a plurality of anti-skid grooves are provided on the wheels, and the anti-skid grooves can prevent the wheels from sliding and rubbing against the ground.

[0061] In this embodiment, the anti-skid grooves are used to increase the friction of the wheels so that the wheels can roll on the ground, and when the protective platform 2 rises, the anti-skid grooves can avoid sliding friction between the wheels and the ground, thereby avoiding the dangerous situation of the frame 1 slipping.

[0062] The above embodiments are exemplary rather than restrictive, so any technical solution of the present invention that can be implemented in other specific forms without departing from the spirit or basic features of the present invention is included in the present invention.

Claims

1. A mobile safety protection platform for a bridge support pedestal, comprising a frame (1) and a protection platform (2) arranged on the frame (1); an axle (8) is rotatably mounted on the frame (1), and wheels are fixedly mounted at both ends of the axle (8); It is characterized in that The vehicle frame (1) is provided with a lifting mechanism, and the lifting mechanism can drive the protective platform (2) to rise or fall vertically; A support mechanism is provided on the vehicle frame (1), a support column (11) is connected to the support mechanism, and the support mechanism can drive the support column (11) away from or close to the vehicle frame (1) when the lifting mechanism is in motion; A limiting mechanism is also provided on the vehicle frame (1), and the limiting mechanism can limit the rotation of the axle (8) when the lifting mechanism is in motion, so that the wheel cannot rotate.

2. A bridge support pedestal movable safety protection platform according to claim 1, characterized in that: The lifting mechanism comprises a motor (3) fixedly mounted on the vehicle frame (1), wherein the output end of the motor (3) is fixedly connected to a first gear (301); a first rotating shaft (4) is rotatably mounted on the vehicle frame (1), and a second gear (401) meshing with the first gear (301) is fixedly mounted on the first rotating shaft (4); A longitudinal threaded protrusion (402) is fixedly mounted on the first rotating shaft (4), an internal threaded sleeve block (5) is threadedly connected to the longitudinal threaded protrusion (402), a connecting rod (6) is fixedly mounted on the internal threaded sleeve block (5), and sliders (601) are fixedly mounted on both ends of the connecting rod (6); a guide rod (7) is fixedly mounted on the vehicle frame (1), and a guide groove (701) is provided on the guide rod (7) for sliding engagement with the slider (601).

3. A bridge support pedestal movable safety protection platform according to claim 2, characterized in that: The lifting mechanism further comprises a first hinged rod (1201) rotatably mounted on the connecting rod (6), a second hinged rod (1202) rotatably connected to the vehicle frame (1) being hingedly connected to the first hinged rod (1201), multiple groups of the first hinged rods (1201) and multiple groups of the second hinged rods (1202) being hingedly connected to form a scissor-type structure (12), the second hinged rod (1202) in the scissor-type structure (12) close to the protective platform (2) being rotatably mounted on the protective platform (2), and the first hinged rod (1201) in the scissor-type structure (12) close to the protective platform (2) being slidably mounted on the protective platform (2).

4. A bridge support pedestal movable safety protection platform according to claim 3, characterized in that: The support mechanism comprises four telescopic rods (10) slidably mounted on the vehicle frame (1); the two ends of the first rotating shaft (4) are connected to the second rotating shaft (9) via a bevel gear set, and the second rotating shaft (9) is fixedly mounted with a transverse threaded protrusion (901) threadedly connected to the telescopic rod (10); and the support column (11) is fixedly mounted on one end of the telescopic rod (10) away from the vehicle frame (1).

5. The movable safety protection platform for bridge support pedestal according to claim 4 is characterized in that: The limiting mechanism comprises a limiting ring (101) fixedly mounted on the vehicle frame (1), wherein a plurality of first protruding blocks are fixedly mounted on the limiting ring (101); a rotating ring (801) is slidably mounted on the axle (8), wherein a plurality of second protruding blocks capable of cooperating with the first protruding blocks are fixedly mounted on the rotating ring (801); a baffle (802) is fixedly mounted on the axle (8), wherein a spring (803) is fixedly mounted on the baffle (802), wherein both ends of the spring (803) respectively contact the rotating ring (801) and the baffle (802); and a trigger plate (602) cooperating with the rotating ring (801) is fixedly mounted on a slider (601) close to the rotating ring (801).

6. The movable safety protection platform for bridge support pedestal according to claim 1 is characterized in that: A protective railing is fixedly mounted on the protective platform (2), and the protective railing is made of metal.

7. The bridge support pedestal movable safety protection platform according to claim 1 is characterized in that: The wheels are provided with a plurality of anti-skid grooves, which can prevent the wheels from sliding against the ground.

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