A steel beam working platform with self-locking function

Abstract

The present invention belongs to the technical field of bridge construction, and discloses a steel beam working platform with a self-locking function, comprising a bridge body, a supporting frame being arranged on the top surface of the bridge body, counterweight blocks being arranged on both sides of the supporting frame, a fixed platform being arranged on the bottom of the bridge body, a telescopic platform being arranged on the side of the fixed platform, and an adjusting component for changing the length of the telescopic platform being arranged on the bottom surfaces of the fixed platform and the telescopic platform. In the adjusting component, connecting shafts on the telescopic bracket are movably connected with the bottom surfaces of the fixed platform and the telescopic platform respectively, and then, driven by the telescopic motor, the lead screw drives the connecting shaft to perform an equidistant adjustment movement, so that the telescopic platform can be telescoped and retracted at an equidistant distance on the fixed platform, so that the steel beam working platform can not only be adjusted according to the width of the bridge body, but also can be easily recovered after the work of the working platform is completed, thus avoiding the working platform from occupying a large amount of space and making the working platform more convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and in particular to a steel beam working platform with a self-locking function. Background Art

[0002] A bridge work platform with a self-locking function is a platform used for working on a bridge. The platform is usually composed of one or more steel beams and can be assembled and disassembled as needed. The platform has a self-locking function, which can automatically lock during operation to prevent the platform from sliding or tilting, thereby ensuring the safety of the operators.

[0003] For example, the invention with publication number CN117802902A provides a steel beam working platform with a self-locking function, including a steel truss beam 1, a steel truss beam 2, a working platform and a self-locking device. The steel truss beam 1 and the steel truss beam 2 are both composed of an upper crossbeam, a bridge deck, a main truss, a lower crossbeam and a crossbeam web. The main truss is arranged on both sides of the steel truss beam 1 and the steel truss beam 2, and the upper crossbeam is welded and distributed above the main trusses at both ends; the working platform is longitudinally installed and distributed below the upper crossbeam between the steel truss beam 1 and the steel truss beam 2; the lower part of the self-locking device is installed and distributed on both sides of the working platform, and the upper part of the self-locking device is installed and distributed below the upper crossbeam. The steel beam working platform with a self-locking function makes the connection and separation method simple and convenient through the self-locking device. The hanging arm is automatically locked under the action of gravity to realize the overall longitudinal movement of the working platform, which solves the problem that the bridge position cannot be constructed with lifting equipment, facilitates construction, meets different construction needs, and greatly improves construction efficiency.

[0004] The existing technology has the following problems: when the existing steel beam working platform is working on the bridge, it is mostly necessary to place the fixed working platform to the bottom of the bridge through cables. The working platform under this design is relatively long and takes up more space when it is recovered. In addition, the existing steel beam working platforms are mostly raised and lowered on one side of the bridge, resulting in the working platform having only one end with a support point when working, which is prone to shaking, affecting the stable construction of the workers.

[0005] For this reason, a steel beam working platform with a self-locking function is proposed. Summary of the invention

[0006] The purpose of the present invention is to solve the problem that when existing steel beam working platforms are operating on bridges, most of them need to place the fixed working platform to the bottom of the bridge through cables. The working platform under this design is relatively long and takes up more space when it is recovered. In addition, most of the existing steel beam working platforms are raised and lowered on one side of the bridge, resulting in that the working platform has only one end with a support point when working, which is easy to shake and affects the stable construction of the workers. The present invention provides a steel beam working platform with a self-locking function.

[0007] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0008] A steel beam working platform with a self-locking function comprises a bridge body, a supporting frame is provided on the top surface of the bridge body, counterweights are provided on both sides of the supporting frame, an adjusting seat is provided on the top surface of the supporting frame, a limiting frame is provided inside the adjusting seat, and the limiting frame is movably connected with the adjusting seat, and the limiting frame is centrally symmetrical about the adjusting seat, a first lifting frame and a second lifting frame are provided on both sides of the bridge body, a fixed platform is provided at the bottom of the bridge body, a telescopic platform is provided on the side of the fixed platform, an adjusting component for changing the length of the telescopic platform is provided on the bottom surface of the fixed platform and the telescopic platform, and a self-locking component for stable operation of the beam platform is provided between the telescopic platform and the second lifting frame.

[0009] As a further solution of the present invention, the adjustment assembly includes a fixed block and a telescopic bracket, and the fixed block is fixedly connected to the bottom surface of the fixed platform, the surface array of the telescopic bracket is provided with a connecting shaft, and the connecting shaft is rotatably connected to the telescopic bracket, and the connecting shaft is movably connected to the bottom surface of the fixed platform and the telescopic platform respectively, the surface of the fixed block is provided with a telescopic motor, the output end of the telescopic motor is provided with a telescopic screw rod, and the telescopic screw rod is threadedly connected to the connecting shaft.

[0010] As a further solution of the present invention, the self-locking component includes a fixed seat, a movable bracket is provided on the surface of the fixed seat, and the movable bracket is rotatably connected to the fixed seat, a connecting rod is provided on the surface of the movable bracket, a ball is provided at one end of the connecting rod, and the roller is rotatably connected to the connecting rod.

[0011] As a further solution of the present invention, a self-locking block is provided in the second lifting frame, and the roller is rollingly connected to the self-locking block, a self-locking groove is provided on the top surface of the self-locking block, and the connecting rod is snap-connected to the self-locking groove, an electric telescopic rod is provided on the bottom surface of the telescopic platform, and the output end of the electric telescopic rod is on the bottom surface of the telescopic platform, an unlocking bracket is provided on the output end of the electric telescopic rod, and the unlocking bracket is movably connected to the connecting rod.

[0012] As a further solution of the present invention, an adjusting motor is provided on the surface of the adjusting seat, and the output end of the adjusting motor passes through the surface of the adjusting seat, an adjusting gear is provided at the output end of the adjusting motor, and movable gear bars are respectively provided on the surface of the limiting frame, and the adjusting gears are respectively meshed with the movable gear bars.

[0013] As a further solution of the present invention, lifting gear bars are respectively provided on the inner sides of the first lifting frame and the second lifting frame, a lifting motor is provided on the top surface of the limit frame, a transmission gear is provided at the output end of the lifting motor, and the transmission gear and the lifting gear bar are meshed with each other.

[0014] As a further solution of the present invention, the first lifting frame and the second lifting frame are movably connected to the limiting frames respectively, and limiting blocks are respectively provided on the surfaces of the first lifting frame and the second lifting frame.

[0015] As a further solution of the present invention, a rotating frame is provided at the bottom end of the first lifting frame, and the rotating frame is rotatably connected to the first lifting frame, and the rotating frame is fixedly connected to the fixed platform. A rotating motor is provided in the first lifting frame, and the output end of the rotating motor is fixedly connected to the top surface of the rotating frame.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The present invention is provided with an adjustment assembly on the bottom surface of the fixed platform and the telescopic platform. In the adjustment assembly, the connecting shafts on the telescopic bracket are movably connected to the bottom surfaces of the fixed platform and the telescopic platform respectively, and then under the drive of the telescopic motor, the screw rod drives the connecting shaft to adjust and move at equal distances, so that the telescopic platform can be extended and retracted at equal distances on the fixed platform, so that the steel beam working platform can not only be adjusted according to the width of the bridge body, but also easy to recycle after the work of the working platform is completed, avoiding the working platform from occupying a large amount of space, making the working platform more convenient to use.

[0018] 2. The present invention provides a self-locking component between the telescopic platform and the second lifting frame. In the self-locking component, a fixed block is installed in the telescopic platform, and a movable bracket and a connecting rod provided on the surface of the fixed block can rotate on the surface of the fixed block. When the telescopic platform approaches the second lifting frame, the roller on the surface of the connecting rod moves to a certain position on the self-locking block, and the connecting rod will fall into the self-locking groove to complete the fixed connection between the telescopic platform and the second lifting frame. This design can complete the quick locking connection between the telescopic platform and the second lifting frame, which is convenient for the stable use of the steel beam working platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an axonometric view of the present invention;

[0020] Figure 2 is an overall cross-sectional view of the present invention;

[0021] Figure 3 It is an exploded view of the overall structure of the present invention;

[0022] Figure 4 It is a structural exploded view of a part of the structure of the present invention;

[0023] Figure 5 is a cross-sectional view of the adjustment assembly of the present invention;

[0024] Figure 6 is an exploded view of the structure of the adjustment assembly of the present invention;

[0025] Figure 7 is a structural diagram of the self-locking assembly of the present invention;

[0026] Figure 8 It is a structural exploded view of the self-locking assembly of the present invention.

[0027] 1. Adjustment assembly; 101. Fixed block; 102. Telescopic screw rod; 103. Connecting shaft; 104. Telescopic bracket; 105. Telescopic motor; 2. Fixed platform; 3. Self-locking assembly; 301. Fixed seat; 302. Unlocking bracket; 303. Connecting rod; 304. Roller; 305. Movable bracket; 306. Electric telescopic rod; 307. Self-locking groove; 308. Self-locking block; 4. Bridge body; 5. First lifting frame; 6. Second lifting frame; 7. Lifting gear bar; 8. Limiting frame; 9. Adjustment motor; 10. Adjustment seat; 11. Limiting block; 12. Support frame; 13. Counterweight block; 14. Transmission gear; 15. Adjustment gear; 16. Moving gear bar; 17. Lifting motor; 18. Telescopic platform; 19. Rotating motor; 20. Rotating frame. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, 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 part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0031] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] The following will be combined Figure 1-Figure 8 A steel beam working platform with a self-locking function according to an embodiment of the present invention is described in detail.

[0033] Embodiment 1: Embodiment 1 of the present application discloses a steel beam working platform with a self-locking function. Figure 1-Figure 8 , including a bridge body 4, a supporting frame 12 is provided on the top surface of the bridge body 4, counterweights 13 are provided on both sides of the supporting frame 12, an adjusting seat 10 is provided on the top surface of the supporting frame 12, a limiting frame 8 is provided in the adjusting seat 10, and the limiting frame 8 is movably connected with the adjusting seat 10, and the limiting frame 8 is centrally symmetrical about the adjusting seat 10, a first lifting frame 5 and a second lifting frame 6 are provided on both sides of the bridge body 4, a fixed platform 2 is provided at the bottom of the bridge body 4, a telescopic platform 18 is provided on the side of the fixed platform 2, an adjusting component 1 for changing the length of the telescopic platform 18 is provided on the bottom surface of the fixed platform 2 and the telescopic platform 18, and a self-locking component 3 for stabilizing the operation of the beam platform is provided between the telescopic platform 18 and the second lifting frame 6.

[0034] Specifically, when the steel beam platform is in use, the limit frame 8 moves to both sides in the adjustment seat 10, and then the first lifting frame 5 and the second lifting frame 6 move downward, and then the fixed platform 2 rotates to a position perpendicular to the bridge body 4, and then under the action of the adjustment component 1, the telescopic frame will extend to the same length as the width of the bridge body 4, and then the self-locking component 3 between the telescopic platform 18 and the second lifting frame 6 will stably connect the steel beam as a whole.

[0035] refer to Figure 1-Figure 6 The adjustment component 1 includes a fixed block 101 and a telescopic bracket 104, and the fixed block 101 is fixedly connected to the bottom surface of the fixed platform 2, the surface array of the telescopic bracket 104 is provided with a connecting shaft 103, and the connecting shaft 103 is rotatably connected to the telescopic bracket 104, and the connecting shaft 103 is movably connected to the bottom surfaces of the fixed platform 2 and the telescopic platform 18 respectively, a telescopic motor 105 is provided on the surface of the fixed block 101, and a telescopic screw rod 102 is provided at the output end of the telescopic motor 105, and the telescopic screw rod 102 is threadedly connected to the connecting shaft 103.

[0036] Specifically, in the adjustment component 1, the connecting shaft 103 on the telescopic bracket 104 is movably connected to the bottom surface of the fixed platform 2 and the telescopic platform 18 respectively, and then under the drive of the telescopic motor 105, the screw rod drives the connecting shaft 103 to adjust and move at equal distances, so that the telescopic platform 18 can be telescoped at equal distances on the fixed platform 2.

[0037] The implementation principle of a steel beam working platform with a self-locking function in the first embodiment of the present application is as follows: in the adjusting component 1, the connecting shaft 103 on the telescopic bracket 104 is movably connected to the bottom surfaces of the fixed platform 2 and the telescopic platform 18 respectively, and then under the drive of the telescopic motor 105, the screw drives the connecting shaft 103 to adjust and move at equal distances, so that the telescopic platform 18 can be telescoped at equal distances on the fixed platform 2, so that the steel beam working platform can not only be adjusted according to the width of the bridge body 4, but also conveniently recovered after the work of the working platform is completed, avoiding the working platform from occupying a large amount of space, making the working platform more convenient to use. When the steel beam platform is in use, the limit frame 8 moves to both sides in the adjusting seat 10, and then the first lifting frame 5 and the second lifting frame 6 will move downward, and then the fixed platform 2 will rotate to a position perpendicular to the bridge body 4, and then under the action of the adjusting component 1, the telescopic frame will extend to the same length as the width of the bridge body 4, and then the self-locking component 3 between the telescopic platform 18 and the second lifting frame 6 will stably connect the steel beam as a whole.

[0038] Example 2: Reference Figure 1 , Figure 3 , Figure 4 , Figure 7 and Figure 8 The self-locking component 3 includes a fixed seat 301, a movable bracket 305 is provided on the surface of the fixed seat 301, and the movable bracket 305 is rotatably connected to the fixed seat 301, a connecting rod 303 is provided on the surface of the movable bracket 305, a ball is provided at one end of the connecting rod 303, and the roller 304 is rotatably connected to the connecting rod 303, a self-locking block 308 is provided in the second lifting frame 6, and the roller 304 is rollingly connected to the self-locking block 308, a self-locking groove 307 is provided on the top surface of the self-locking block 308, and the connecting rod 303 is engaged and connected with the self-locking groove 307, an electric telescopic rod 306 is provided on the bottom surface of the telescopic platform 18, and the output end of the electric telescopic rod 306 is the bottom surface of the telescopic platform 18, an unlocking bracket 302 is provided at the output end of the electric telescopic rod 306, and the unlocking bracket 302 is movably connected to the connecting rod 303.

[0039] Specifically, in the self-locking component 3, the fixed seat 301 is installed in the telescopic platform 18, and the movable bracket 305 and the connecting rod 303 provided on the surface of the fixed seat 301 can rotate on the surface of the fixed seat 301. When the telescopic platform 18 is close to the second lifting frame 6, the roller 304 on the surface of the connecting rod 303 moves to a certain position on the self-locking block 308, and the connecting rod 303 will fall into the self-locking groove 307, completing the fixed connection between the telescopic platform 18 and the second lifting frame 6.

[0040] The implementation principle of the steel beam working platform with self-locking function in the second embodiment of the present application is as follows: in the self-locking component 3, the fixed seat 301 is installed in the telescopic platform 18, and the movable bracket 305 and the connecting rod 303 provided on the surface of the fixed seat 301 can rotate on the surface of the fixed seat 301. When the telescopic platform 18 is close to the second lifting frame 6, the roller 304 on the surface of the connecting rod 303 moves to a certain position on the self-locking block 308, and the connecting rod 303 will fall into the self-locking groove 307, completing the telescopic platform 18 and the second lifting frame 6. Fixed connection, the top surface of the self-locking block 308 is an inclined surface. When the telescopic platform 18 contacts the self-locking block 308, the roller 304 at one end of the connecting rod 303 will move on the inclined surface. When the connecting rod 303 falls into the self-locking groove 307 and is fixed, when the steel beam working platform needs to be recovered, under the drive of the electric telescopic rod 306, the unlocking bracket 302 will push the connecting rod 303 out of the self-locking groove 307. This design can complete the quick locking connection between the telescopic platform 18 and the second lifting frame 6, which is convenient for the stable use of the steel beam working platform.

[0041] Example 3: Reference Figure 1-Figure 8 , an adjusting motor 9 is provided on the surface of the adjusting seat 10, and the output end of the adjusting motor 9 passes through the surface of the adjusting seat 10, an adjusting gear 15 is provided on the output end of the adjusting motor 9, a moving gear bar 16 is provided on the surface of the limiting frame 8, and the adjusting gear 15 is meshed with the moving gear bar 16, a lifting gear bar 7 is provided on the inner side of the first lifting frame 5 and the second lifting frame 6, a lifting motor 17 is provided on the top surface of the limiting frame 8, a transmission gear 14 is provided on the output end of the lifting motor 17, and the transmission gear 14 is meshed with the lifting gear bar 7, the first lifting frame 5 and the second lifting frame 6 are movably connected to the limiting frame 8, and a limiting block 11 is provided on the surface of the first lifting frame 5 and the second lifting frame 6. A rotating frame 20 is provided at the bottom end of the first lifting frame 5, and the rotating frame 20 is rotatably connected to the first lifting frame 5, and the rotating frame 20 is fixedly connected to the fixed platform 2, a rotating motor 19 is provided in the first lifting frame 5, and the output end of the rotating motor 19 is fixedly connected to the top surface of the rotating frame 20.

[0042] Specifically, driven by the lifting motor 17 , the transmission gear 14 will drive the first lifting frame 5 and the second lifting frame 6 to move up and down, making it convenient for workers to perform maintenance operations on different positions of the bridge body 4 .

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A steel beam working platform with a self-locking function, comprising a bridge body (4), characterized in that: A support frame (12) is provided on the top surface of the bridge body (4), counterweights (13) are provided on both sides of the support frame (12), an adjustment seat (10) is provided on the top surface of the support frame (12), two limit frames (8) are provided inside the adjustment seat (10), the two limit frames (8) are movably connected to the adjustment seat (10), and the two limit frames (8) are centrally symmetrically arranged with respect to the adjustment seat (10), a first lifting frame (5) and a second lifting frame (6) are provided on both sides of the bridge body (4), a fixed platform (2) is provided at the bottom of the bridge body (4), a telescopic platform (18) is provided on the side of the fixed platform (2), and the bottoms of the fixed platform (2) and the telescopic platform (18) are An adjusting component (1) for changing the length of a telescopic platform (18) is provided on the surface; a self-locking component (3) for stabilizing the operation of the beam platform is provided between the telescopic platform (18) and the second lifting frame (6); the self-locking component (3) comprises a fixed seat (301); a movable bracket (305) is provided on the surface of the fixed seat (301); the movable bracket (305) is rotatably connected to the fixed seat (301); a connecting rod (303) is provided on the surface of the movable bracket (305); a roller (304) is provided at one end of the connecting rod (303); the roller (304) is rotatably connected to the connecting rod (303); a self-locking block (308) is provided in the second lifting frame (6); the roller (304) and the self-locking block (308) are rotatably connected to each other. ) is rollingly connected, a self-locking groove (307) is provided on the top surface of the self-locking block (308), and the connecting rod (303) is snap-connected with the self-locking groove (307), an electric telescopic rod (306) is provided on the bottom surface of the telescopic platform (18), an unlocking bracket (302) is provided at the output end of the electric telescopic rod (306), and the unlocking bracket (302) is movably connected to the connecting rod (303), an adjusting motor (9) is provided on the surface of the adjusting seat (10), and the output end of the adjusting motor (9) passes through the surface of the adjusting seat (10), and an adjusting gear (15) is provided at the output end of the adjusting motor (9), and the surfaces of the two limiting frames (8) are respectively provided with movable gear bars (16), and the adjusting gears (15) are respectively connected to the movable gears The wheel strips (16) are meshed with each other. The inner sides of the first lifting frame (5) and the second lifting frame (6) are respectively provided with lifting gear strips (7). The top surfaces of the two limit frames (8) are respectively provided with lifting motors (17). The output ends of the lifting motors (17) are provided with transmission gears (14), and the transmission gears (14) and the lifting gear strips (7) are meshed with each other. The first lifting frame (5) and the second lifting frame (6) are respectively movably connected with the two limit frames (8). The surfaces of the first lifting frame (5) and the second lifting frame (6) are respectively provided with limit blocks (11). The bottom end of the first lifting frame (5) is provided with a rotating frame (20), and the rotating frame (20) is rotatably connected with the first lifting frame (5).The rotating frame (20) is fixedly connected to the fixed platform (2), a rotating motor (19) is provided in the first lifting frame (5), and an output end of the rotating motor (19) is fixedly connected to the top surface of the rotating frame (20).

2. A steel beam working platform with self-locking function according to claim 1, characterized in that: The adjustment assembly (1) comprises a fixed block (101) and a telescopic bracket (104), wherein the fixed block (101) is fixedly connected to the bottom surface of the fixed platform (2), the surface array of the telescopic bracket (104) is provided with a connecting shaft (103), and the connecting shaft (103) is rotatably connected to the telescopic bracket (104), and the connecting shaft (103) is movably connected to the bottom surfaces of the fixed platform (2) and the telescopic platform (18), respectively, and the surface of the fixed block (101) is provided with a telescopic motor (105), and the output end of the telescopic motor (105) is provided with a telescopic screw rod (102), and the telescopic screw rod (102) is threadedly connected to the connecting shaft (103).

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