Bridge construction mobile protection platform

Abstract

The application discloses a bridge construction mobile protection platform, and relates to the technical field of bridge construction, which comprises a vehicle frame, a load-bearing frame is fixedly connected to the upper side of the vehicle frame, a winding roller is rotationally connected to the upper side of the load-bearing frame through a bearing, a suspension cable is fixedly connected to the outer wall of the winding roller, the upper portion of the suspension cable is wound around the outer wall of the winding roller, a connecting frame is fixedly connected to the lower end of the suspension cable, a fixed frame is fixedly connected to the lower end of the connecting frame, the lower side of the fixed frame is provided with an opening, a rubber fixing belt is fixedly connected to the side wall of the fixed frame, and a bottom plate is fixedly connected to the lower end of the rubber fixing belt. The fixed frame is suspended, the vehicle frame is movable, and the winding roller is windable, so that the device can carry people to move on the bridge deck, and the people can be transported to a preset point for detection. The device has the characteristics of high practicability and stability during the fixed-point detection of the bridge.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, specifically to a mobile protective platform for bridge construction. Background Technology

[0002] Bridges generally refer to structures built over rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. In order to adapt to the modern high-speed development of the transportation industry, bridges have also been extended to refer to buildings that cross mountains, adverse geological conditions, or meet other transportation needs to make travel more convenient. When constructing long-span bridges, the bridge deck is high above the ground. During the maintenance of the bridge piers, it is necessary to suspend personnel using a protective platform suspended by slings. However, due to the height of the piers and the span, the wind speed at the piers is high, making it difficult to fix the protective platform at the inspection points, which in turn affects the construction efficiency of the bridge. Therefore, it is essential to design a mobile protective platform for bridge construction that is both practical and stable during fixed-point inspections of the bridge. Summary of the Invention

[0003] The purpose of this invention is to provide a mobile protective platform for bridge construction to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a mobile protective platform for bridge construction, comprising a frame, characterized in that: a load-bearing frame is fixedly connected to the upper side of the frame, a take-up roller is rotatably connected to the upper side of the load-bearing frame via a bearing, a suspension cable is fixedly connected to the outer wall of the take-up roller, the upper part of the suspension cable is wound around the outer wall of the take-up roller, a connecting frame is fixedly connected to the lower end of the suspension cable, a fixing frame is fixedly connected to the lower end of the connecting frame, the lower side of the fixing frame is open, a rubber fixing strap is fixedly connected to the side wall of the fixing frame, a base plate is fixedly connected to the lower end of the rubber fixing strap, the outer wall of the base plate does not contact the inner wall of the fixing frame, the length and width of the lower side of the inner wall of the fixing frame are less than the length and width of the base plate, and a support mechanism is also provided on the fixing frame.

[0005] According to the above technical solution, the support mechanism includes a first motor, the outer wall of the first motor is fixedly connected to the side wall of the fixed frame, a transmission rod is fixedly connected to the output end of the first motor, a transmission roller is rotatably connected to the outer wall of the fixed frame via a bearing, a transmission disc is rotatably connected to the lower part of the outer side wall of the fixed frame via a bearing, a transmission belt is sleeved on the outer wall of the transmission disc and the transmission roller, the outer wall of the transmission disc and the outer wall of the transmission roller are connected by the transmission belt, a hexagonal threaded rod is inserted into the inner wall of the transmission disc, the two ends of the hexagonal threaded rod pass through the fixed frame and extend to both sides of the fixed frame, the outer wall of the hexagonal threaded rod is threadedly connected to the inner wall of the fixed frame, a rotating block is rotatably connected to one end of the hexagonal threaded rod via a bearing, a support plate is hinged to the outer wall of the rotating block, a connecting piece is fixedly connected to one side of the outer wall of the fixed frame, and a limit mechanism is provided on the lower side of the connecting piece.

[0006] According to the above technical solution, the outer wall of the hexagonal threaded rod is a hexagonal prism structure, and the outer wall of the hexagonal threaded rod is provided with a threaded groove. The inner wall of the transmission disk is a hexagonal hole, and the transmission disk and the hexagonal threaded rod cannot rotate relative to each other.

[0007] According to the above technical solution, the limiting mechanism includes a spring, the upper end of which is fixedly connected to the side wall of the fixed frame, and the lower end of which is fixedly connected to a fixed plate. One end of the fixed plate extends to the lower side of the base plate. A limiting groove is formed on the lower side of the base plate. A connecting plate is fixedly connected to the upper surface of the fixed plate located below the limiting groove. A limiting block is fixedly connected to the upper side of the connecting plate. The upper side of the limiting block is located inside the limiting groove. A circular hole is formed at one end of the fixed plate. A fixing member is inserted into the circular hole on the fixed plate. The upper end of the fixing member is fixedly connected to the lower side of the connecting plate. A lever is also hinged to the outer wall of the fixing member by a torsion spring. A fan blade is fixedly connected to the outer wall of the lever. The lower two sides of the lever protrude downwards, and the end of the fixed plate located below the lever protrudes upwards. A counterweight mechanism is also provided on the lower side of the base plate.

[0008] According to the above technical solution, fan blades are provided on both sides of the lever block, and the fan blades and lever block can be deflected relative to the fixing member, and the height of the upper surface of the fixing plate is consistent with the height of the protrusions on both sides of the lower part of the lever block.

[0009] According to the above technical solution, the counterweight mechanism includes a slide rail, the outer wall of the slide rail is fixedly connected to the lower side of the base plate, a counterweight pile is slidably connected to the inner wall of the slide rail, a threaded hole is opened on one side of the counterweight pile, a threaded rod is threadedly connected to the inner wall of the threaded hole, a second motor is fixedly connected to one side of the lower surface of the base plate, and the output end of the second motor is fixedly connected to one end of the threaded rod.

[0010] According to the above technical solution, an installation groove is provided on the lower side of the counterweight pile, and a suspended counterweight block is provided inside the installation groove. The upper side of the suspended counterweight block is fixedly connected to the upper side of the inner wall of the installation groove by a hanging rope.

[0011] Compared with the prior art, the beneficial effects achieved by the present invention are: by setting a suspended fixed frame, a movable vehicle frame and a retractable winding roller, the present invention enables the device to carry people on the bridge surface and transport them to preset points for testing. By setting a movable support plate, this device can support the bridge pier after moving to the designated location, thereby achieving stable support and preventing swaying. This device is equipped with a base plate that can be separated from the fixed frame. This reduces the swaying experienced by personnel inside the fixed frame when the device cannot be fully stabilized by the wall support in high wind conditions, thereby increasing personnel safety. By setting movable counterweight piles, the device can adjust the balance of the base plate and change the pressure applied to the pier by changing the center of gravity, thereby ensuring the stability of the device. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the left side structure of the fixing frame of the present invention; Figure 3 This is a schematic diagram of the right side structure of the fixed frame of the present invention; Figure 4 This is a schematic diagram of the lower structure of the fixed frame of the present invention; Figure 5 This is a schematic diagram of the internal structure of the fixed frame of the present invention; Figure 6 This is a schematic diagram of the support mechanism structure of the present invention; Figure 7 This is a schematic diagram of the counterweight pile structure of the present invention; In the diagram: 1. Frame; 2. Load-bearing frame; 3. Take-up roller; 4. Suspension cable; 5. Connecting frame; 6. Fixing frame; 7. Rubber fixing belt; 8. Base plate; 9. Support mechanism; 901. First motor; 902. Transmission rod; 903. Transmission roller; 904. Transmission disc; 905. Transmission belt; 906. Hexagonal threaded rod; 907. Rotating block; 908. Support plate; 909. Connecting piece; 910. Limiting mechanism; 101. Spring; 102. Fixing plate; 103. Connecting plate; 104. Limiting block; 105. Pulley; 106. Fan blade; 107. Counterweight mechanism; 108. Fixing component; 701. Slide rail; 702. Counterweight pile; 703. Second motor; 704. Threaded rod; 705. Suspension counterweight block. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] Please see Figure 1-7 The present invention provides a technical solution: a mobile protective platform for bridge construction, including a frame 1, a load-bearing frame 2 fixedly connected to the upper side of the frame 1, a take-up roller 3 rotatably connected to the upper side of the load-bearing frame 2 via a bearing, a suspension steel cable 4 fixedly connected to the outer wall of the take-up roller 3, the upper part of the suspension steel cable 4 being wound around the outer wall of the take-up roller 3, a connecting frame 5 fixedly connected to the lower end of the suspension steel cable 4, a fixing frame 6 fixedly connected to the lower end of the connecting frame 5, the lower side of the fixing frame 6 being open, a rubber fixing strap 7 fixedly connected to the side wall of the fixing frame 6, a base plate 8 fixedly connected to the lower end of the rubber fixing strap 7, the outer wall of the base plate 8 not contacting the inner wall of the fixing frame 6, the length and width of the lower side of the inner wall of the fixing frame 6 being less than the length and width of the base plate 8, and a support mechanism 9 also being provided on the fixing frame 6; When in use, the frame 1 is placed on the bridge deck, and a counterweight is placed on the upper side of the load-bearing frame 2 to prevent the device from tipping over after the connecting frame 5 hangs down on the lower side of the bridge deck. When it needs to be moved, the device is moved by vehicle towing and connected to the winding roller 3 by a winch, so that the winding roller 3 can wind up and down the suspension steel cable 4, thereby achieving the purpose of the device to lift the connecting frame 5 up and down by the suspension steel cable 4. Personnel stand on the upper side of the bottom plate 8 inside the fixed frame 6 for transportation, thereby allowing personnel to descend from the bridge deck to the positioning point. The support mechanism 9 includes a first motor 901. The outer wall of the first motor 901 is fixedly connected to the side wall of the fixed frame 6. A transmission rod 902 is fixedly connected to the output end of the first motor 901. A transmission roller 903 is rotatably connected to the outer wall of the fixed frame 6 via a bearing. A transmission disc 904 is also rotatably connected to the lower part of the outer side wall of the fixed frame 6 via a bearing. A transmission belt 905 is sleeved on the outer wall of the transmission disc 904 and the transmission roller 903. The outer wall of the transmission disc 904 and the outer wall of the transmission roller 903 are connected by transmission belt 905. A hexagonal threaded rod 906 is inserted into the inner wall of the transmission disc 904. The two ends of the hexagonal threaded rod 906 are respectively inserted into… The hexagonal threaded rod 906 passes through the fixed frame 6 and extends to both sides of the fixed frame 6. The outer wall of the hexagonal threaded rod 906 is threadedly connected to the inner wall of the fixed frame 6. One end of the hexagonal threaded rod 906 is rotatably connected to a rotating block 907 via a bearing. A support plate 908 is hinged to the outer wall of the rotating block 907. A connecting piece 909 is also fixedly connected to one side of the outer wall of the fixed frame 6. A limit mechanism 910 is provided on the lower side of the connecting piece 909. The outer wall of the hexagonal threaded rod 906 is a hexagonal prism structure and is provided with a threaded groove. The inner wall of the transmission disk 904 is a hexagonal hole, and the transmission disk 904 and the hexagonal threaded rod 906 cannot rotate relative to each other. After the device lowers the fixed frame 6 to the detection point, the first motor 901 can be started to drive the transmission rod 902 to rotate. Then, the transmission rod 902 drives the transmission roller 903 to rotate, which in turn drives the transmission belt 905 and the transmission disc 904 to rotate. Since the inner wall of the transmission disc 904 is in contact with the outer wall of the hexagonal threaded rod 906, the transmission disc 904 will drive the hexagonal threaded rod 906 to rotate. Since the outer wall of the hexagonal threaded rod 906 is threadedly connected to the inner wall of the fixed frame 6, the rotation of the hexagonal threaded rod 906 can drive the rotating block 907 and the support plate 908 to move towards the pier. Finally, the support plate 908 will contact the pier. Then, the hexagonal threaded rod 906 continues to move, causing the fixed frame 6 to be slightly pushed in the opposite direction of the pier, which will cause the fixed frame 6 to tilt slightly. This allows the fixed frame 6 to form a stable support for the pier through the hexagonal threaded rod 906, thus enabling the device to remain stable in the wind. The limiting mechanism 910 includes a spring 101. The upper end of the spring 101 is fixedly connected to the side wall of the fixed frame 6. The lower end of the spring 101 is fixedly connected to a fixing plate 102. One end of the fixing plate 102 extends to the lower side of the base plate 8. A limiting groove is formed on the lower side of the base plate 8. A connecting plate 103 is fixedly connected to the upper surface of the fixing plate 102 located below the limiting groove. A limiting block 104 is fixedly connected to the upper side of the connecting plate 103. The upper side of the limiting block 104 is located inside the limiting groove. A circular hole is formed at one end of the fixing plate 102. A fixing member 108 is inserted into the circular hole of the fixing plate 102. The upper end of component 108 is fixedly connected to the lower side of connecting piece 909. The outer wall of the fixed component 108 is also hinged with a torsion spring to a lever 105. The outer wall of the lever 105 is fixedly connected with a fan blade 106. The lower two sides of the lever 105 protrude downwards, and the fixed plate 102 protrudes upwards at one end located below the lever 105. The lower side of the base plate 8 is also provided with a counterweight mechanism 107. Fan blades 106 are provided on both sides of the lever 105. The fan blades 106 and the lever 105 can deflect relative to the fixed component 108. The height of the upper surface of the fixed plate 102 is the same as the height of the protruding parts on both sides of the lower part of the lever 105. When this device is used in a high wind speed, after the device is supported by the hexagonal threaded rod 906, the wind can blow the fan blade 106, causing the fan blade 106 to drive the lever 105 to deflect. In the process of deflection, the lever 105 tightens the torsion spring at the connection between it and the fixing member 108. After the lever 105 deflects, it can push the fixing plate 102 downward, causing the fixing plate 102 to move down and stretch the spring 101 to deform. Then the fixing plate 102 drives the connecting plate 103 and the limiting block 104 to move down, causing the limiting block 104 to move to the outside of the limiting groove. At this time, the base plate 8 is no longer restricted, and it can move slightly relative to the fixing frame 6 under the traction of the rubber fixing belt 7. In this way, when the fixing frame 6 sways in the wind, the base plate 8 can sway less relative to the fixing frame 6 due to inertia, thus making the device more balanced in the wind. After the wind force decreases, the toggle block 105 and the fan blade 106 are reset by the torsion spring, which in turn causes the fixing plate 102 to move upward under the pull of the spring 101, so that the limiting block 104 is re-engaged into the limiting groove. The counterweight mechanism 107 includes a slide rail 701. The outer wall of the slide rail 701 is fixedly connected to the lower side of the base plate 8. A counterweight pile 702 is slidably connected to the inner wall of the slide rail 701. A threaded hole is opened on one side of the counterweight pile 702. A threaded rod 704 is threadedly connected to the inner wall of the threaded hole. A second motor 703 is fixedly connected to one side of the lower surface of the base plate 8. The output end of the second motor 703 is fixedly connected to one end of the threaded rod 704. An installation groove is opened on the lower side of the counterweight pile 702. A suspended counterweight block 705 is set inside the installation groove. The upper side of the suspended counterweight block 705 is fixedly connected to the upper side of the inner wall of the installation groove by a hanging rope. After the stability of the fixed frame 6 is increased by tilting the wall with the hexagonal threaded rod 906, the second motor 703 can be started to drive the threaded rod 704 to rotate. Since the outer wall of the threaded rod 704 is threadedly connected to the inner wall of the counterweight pile 702, the rotation of the threaded rod 704 will cause the counterweight pile 702 to move away from the pier. After the counterweight pile 702 moves to the side of the bottom plate 8 away from the pier, the center of gravity of the bottom plate 8 will shift, and the higher side of the bottom plate 8 will pull down the rubber fixing band 7, causing the rubber fixing band 7 to deform. This will keep the bottom plate 8 stable. After the counterweight pile 702 moves, the center of gravity of the whole device will move away from the pier, which will lengthen the lever arm of the device to apply pressure to the pier. This will result in greater pressure applied to the pier at the support plate 908, making the device more stable. Furthermore, a suspension counterweight block 705 is suspended inside the counterweight pile 702, which reduces the swaying of the counterweight pile 702 and the base plate 8 when the suspension counterweight block 705 shakes, thus creating a damping effect.

[0015] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0016] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mobile protective platform for bridge construction, comprising a chassis (1), characterized in that: A load-bearing frame (2) is fixedly connected to the upper side of the frame (1). A take-up roller (3) is rotatably connected to the upper side of the load-bearing frame (2) via a bearing. A suspension cable (4) is fixedly connected to the outer wall of the take-up roller (3). The upper part of the suspension cable (4) is wound around the outer wall of the take-up roller (3). A connecting frame (5) is fixedly connected to the lower end of the suspension cable (4). A fixing frame (6) is fixedly connected to the lower end of the connecting frame (5). The lower side of the fixing frame (6) is open. A rubber fixing strip (7) is fixedly connected to the side wall of the fixing frame (6). A base plate (8) is fixedly connected to the lower end of the rubber fixing strip (7). The outer wall of the base plate (8) does not contact the inner wall of the fixing frame (6). The length and width of the lower side of the inner wall of the fixing frame (6) are smaller than the length and width of the base plate (8). A support mechanism (9) is also provided on the fixing frame (6). A connecting piece (909) is fixedly connected to one side of the outer wall of the fixed frame (6), and a limit mechanism (910) is provided on the lower side of the connecting piece (909). The limiting mechanism (910) includes a spring (101), the upper end of which is fixedly connected to the side wall of the fixed frame (6), and the lower end of which is fixedly connected to a fixed plate (102). One end of the fixed plate (102) extends to the lower side of the base plate (8). A limiting groove is formed on the lower side of the base plate (8). A connecting plate (103) is fixedly connected to the upper surface of the fixed plate (102) located below the limiting groove. A limiting block (104) is fixedly connected to the upper side of the connecting plate (103). The upper side of the limiting block (104) is located inside the limiting groove. A circular hole is provided at one end of the fixing plate (102). A fixing member (108) is inserted into the circular hole of the fixing plate (102). The upper end of the fixing member (108) is fixedly connected to the lower side of the connecting piece (909). A toggle block (105) is also hinged to the outer wall of the fixing member (108) by a torsion spring. A fan blade (106) is fixedly connected to the outer wall of the toggle block (105). The lower two sides of the toggle block (105) protrude downwards, and the end of the fixing plate (102) located on the lower side of the toggle block (105) protrudes upwards. A counterweight mechanism (107) is also provided on the lower side of the base plate (8). Both sides of the lever (105) are provided with fan blades (106), and the fan blades (106) and the lever (105) can be deflected relative to the fixing member (108), and the height of the upper surface of the fixing plate (102) is consistent with the height of the protrusions on both sides of the lower part of the lever (105).

2. The mobile protective platform for bridge construction according to claim 1, characterized in that: The support mechanism (9) includes a first motor (901), the outer wall of which is fixedly connected to the side wall of the fixed frame (6), and a transmission rod (902) is fixedly connected to the output end of the first motor (901). A transmission roller (903) is rotatably connected to the outer wall of the fixed frame (6) via a bearing. A transmission disc (904) is also rotatably connected to the lower part of the outer side wall of the fixed frame (6) via a bearing. A transmission belt (905) is sleeved on the outer wall of the transmission disc (904) and the transmission roller (903). 4) The outer wall of the transmission roller (903) is connected to the outer wall of the transmission roller (903) by a transmission belt (905). The inner wall of the transmission disc (904) is inserted with a hexagonal threaded rod (906). The two ends of the hexagonal threaded rod (906) pass through the fixed frame (6) and extend to both sides of the fixed frame (6). The outer wall of the hexagonal threaded rod (906) is threadedly connected to the inner wall of the fixed frame (6). One end of the hexagonal threaded rod (906) is rotatably connected to a rotating block (907) through a bearing. The outer wall of the rotating block (907) is hinged with a support plate (908).

3. A mobile protective platform for bridge construction according to claim 2, characterized in that: The outer wall of the hexagonal threaded rod (906) is a hexagonal prism structure, and the outer wall of the hexagonal threaded rod (906) is provided with a threaded groove. The inner wall of the transmission disk (904) is a hexagonal hole, and the transmission disk (904) and the hexagonal threaded rod (906) cannot rotate relative to each other.

4. A mobile protective platform for bridge construction according to claim 3, characterized in that: The counterweight mechanism (107) includes a slide rail (701), the outer wall of the slide rail (701) is fixedly connected to the lower side of the base plate (8), the inner wall of the slide rail (701) is slidably connected to a counterweight pile (702), a threaded hole is opened on one side of the counterweight pile (702), and a threaded rod (704) is threadedly connected to the inner wall of the threaded hole. A second motor (703) is fixedly connected to one side of the lower surface of the base plate (8), and the output end of the second motor (703) is fixedly connected to one end of the threaded rod (704).

5. A mobile protective platform for bridge construction according to claim 4, characterized in that: The counterweight pile (702) has an installation groove on its lower side, and a suspended counterweight block (705) is provided inside the installation groove. The upper side of the suspended counterweight block (705) is fixedly connected to the upper side of the inner wall of the installation groove by a hanging rope.

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