Hoisting device for bridge construction

Abstract

The utility model discloses a hoisting device for bridge construction, which comprises a fixing plate, two steel ropes are arranged at the upper end of the fixing plate, long grooves are symmetrically arranged at the upper end of the fixing plate, a clamping mechanism is arranged at the upper end of the fixing plate, the clamping mechanism comprises two servo motors arranged at the upper end of the fixing plate, and the two servo motors are connected with the two steel ropes. The output ends of the servo motors are connected with lead screws, threaded blocks are symmetrically connected to the outer sides of the lead screws in a threaded mode, clamping assemblies are connected to the lower ends of the threaded blocks, the lower ends of the clamping assemblies penetrate through the long grooves and extend to the positions below the long grooves, and pressing mechanisms connected with the clamping assemblies are installed on the periphery of the lower end of the fixing plate. Compared with the prior art, the hoisting device is reasonable in structural design, the stability of hoisting and transporting materials is conveniently and effectively improved, the safety of construction operation is improved, and the using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting, in particular to a hoisting device for bridge construction. Background Art

[0002] A bridge refers to a building built for roads to cross natural or artificial obstacles. It is erected over rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. A bridge is generally composed of an upper structure, a lower structure, and ancillary structures. The upper structure mainly refers to the span structure and support system. Bridge construction requires the use of a crane to lift materials.

[0003] According to a lifting device for bridge construction disclosed in Chinese patent publication number CN217230035U, it includes a connecting box, a control groove is opened in the connecting box, a transmission screw is arranged in the control groove, the outer surface of the transmission screw is threadedly connected to a first partition, the outer surface of the first partition is fixedly connected to the inner wall of the control groove, a pushing block is arranged in the control groove, one end of the back side of the transmission screw is fixedly connected to the front side of the pushing block, the left side and the right side of the inner wall of the control groove are opened with a card slot, and the two card slots are clamped with mounting blocks, and the opposite surfaces of the two mounting blocks are respectively overlapped with the left side and right side of the pushing block.

[0004] Although the above technical solution replaces the original method of installing the hook with a screw rod, the operation of replacing different types of hooks is more convenient, saving time and effort, and effectively avoiding wear at the connection of the hook, thereby ensuring the stability of the hook, but directly hanging materials with ropes and hooks is not stable during lifting and transportation, and it is easy for materials to fall and create safety hazards. For this reason, we provide a lifting device for bridge construction to solve this problem. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings, the utility model aims to provide a technical solution for a hoisting device for bridge construction that can solve the above-mentioned problems.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a hoisting device for bridge construction, comprising a fixing plate, two steel ropes being installed on the upper end of the fixing plate, long grooves being symmetrically provided on the upper end of the fixing plate, and a clamping mechanism being installed on the upper end of the fixing plate;

[0007] The clamping mechanism includes two servo motors installed on the upper end of the fixed plate, the output ends of the servo motors are connected to screw rods, the outer sides of the screw rods are symmetrically screwed with threaded blocks, the lower ends of the threaded blocks are connected to clamping assemblies, the lower ends of the clamping assemblies pass through the long slots and extend to the bottom thereof, and clamping mechanisms connected to the clamping assemblies are installed around the lower end of the fixed plate.

[0008] As a further solution of the present invention: bearing seats are symmetrically installed on the upper end of the fixed plate, and the two bearing seats are rotatably connected to the screw rods respectively, and the screw rods are forward and reverse bidirectional screw rods.

[0009] As a further solution of the present invention: the clamping assembly includes a clamping plate, one side of the clamping plate is provided with a groove, the inner cavity of the groove is equidistantly connected to springs, and the other end of the spring is connected to a rubber strip.

[0010] As a further solution of the present invention: limiting grooves are equidistantly provided on both sides of the inner cavity of the groove, and limiting blocks are integrally designed on both sides of the rubber strip to be slidably connected therewith.

[0011] As a further solution of the present invention: the clamping mechanism includes four first connecting parts installed at the lower end of the fixed plate, the first connecting part is movably connected to the hydraulic cylinder through a pin shaft, the output end of the hydraulic cylinder is connected to the telescopic rod through a connecting plate, one end of the telescopic rod is movably connected to the second connecting part through a pin shaft, one side of the second connecting part is connected to the first piston rod, the outer side of the first piston rod is sleeved with the first piston cylinder, the first piston cylinder is installed on the outer side of the splint, the outer side of the first piston cylinder is connected to the second piston cylinder through an oil pipe, the second piston cylinder is installed on the outer side of the splint through a third support plate, the second piston cylinder is connected to the fixed plate through the second piston rod, the upper end of the fixed plate is connected with three plug-in blocks, a first support plate is installed on one side of the splint, and the lower end of the first support plate is installed with three rectangular grooves plugged with the plug-in blocks.

[0012] As a further solution of the present invention: the outer side of the splint is connected to a second support plate, the upper end of the second support plate is symmetrically provided with sliding grooves, and the outer side of the second connecting member is installed with two sliding bars that are slidably connected with it.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The material is clamped by the clamping assembly of the clamping mechanism, and the multiple rubber strips of the clamping assembly are individually adhered to the material, which effectively enables the surface of materials of different shapes and sizes to be adhered and clamped at multiple locations, effectively improving the clamping stability and facilitating the clamping of materials of different shapes. The splint is an L-shaped plate, which is convenient for supporting the lower end of the material to prevent it from falling during transportation, effectively improving the lifting stability;

[0015] 2. The clamping assembly is pushed and fixed in position by the clamping mechanism, which effectively improves the clamping firmness of the clamping assembly on the material and the clamping and fixing effect, making it easier to carry out lifting and transportation more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the utility model when viewed from above;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the pressing mechanism of the utility model;

[0019] Figure 4 This is a bottom-up three-dimensional structural diagram of the pressing mechanism of the present invention;

[0020] Figure 5 This utility model Figure 4 A schematic diagram of the enlarged structure of the device in part A;

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of the clamping mechanism of the utility model in a half-section split view and part of the pressing mechanism;

[0022] Figure 7 This utility model Figure 6 The enlarged structural diagram of the device in part B is shown in FIG.

[0023] Figure 8 This utility model Figure 6 Schematic diagram of the enlarged structure of the device in part C.

[0024] The reference numerals and names in the figures are as follows:

[0025] Fixed plate-1, long slot-2, steel rope-3, clamping mechanism-4, servo motor-41, screw rod-42, bearing seat-43, threaded block-44, clamping assembly-45, clamping plate-451, first support plate-452, rectangular slot-453, rubber strip-454, spring-455, limit slot-456, limit block-457, clamping mechanism-5, first connecting part-51, hydraulic cylinder-52, telescopic rod-53, second connecting part-54, second support plate-55, slide bar-56, slide groove-57, first piston cylinder-58, first piston rod-59, oil pipe-510, third support plate-511, second piston cylinder-512, second piston rod-513, fixed plate-514, insert block-516. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-4 A lifting device for bridge construction includes a fixed plate 1, two steel ropes 3 are installed on the upper end of the fixed plate 1, long slots 2 are symmetrically provided on the upper end of the fixed plate 1, a clamping mechanism 4 is installed on the upper end of the fixed plate 1, and the clamping mechanism 4 includes two servo motors 41 installed on the upper end of the fixed plate 1, the output ends of the servo motors 41 are connected to screw rods 42, the outer sides of the screw rods 42 are symmetrically screwed with threaded blocks 44, the lower ends of the threaded blocks 44 are connected to clamping components 45, and the lower ends of the clamping components 45 pass through the long slots 2 and extend below them.

[0028] The upper end of the fixed plate 1 is symmetrically mounted with bearing seats 43. The two bearing seats 43 are rotatably connected to the screw rods 42 respectively. The screw rods 42 are bidirectional screw rods. The designed bearing seats 43 provide stable rotation support for the screw rods 4, thereby improving their working stability.

[0029] The clamping assembly 45 includes a clamping plate 451, one side of which is provided with a groove, the inner cavity of the groove is equidistantly connected to springs 455, the other end of the spring 455 is connected to a rubber strip 454, and limiting grooves 456 are equidistantly provided on both sides of the inner cavity of the groove, and both sides of the rubber strip 454 are integrated with a limiting block 457 that is slidably connected with it.

[0030] The output end of the servo motor 41 drives the second screw rod 42, which is a forward and reverse bidirectional screw rod, to rotate, and the two second threaded blocks 44 on the outside of the second screw rod 42 move in the same direction, and then the clamping plate 451 at the lower end of the second threaded block 42 passes through the long slot 2 and moves toward the material to be hoisted, and the multiple rubber strips 454 on one side of the clamping plate 451 are tightly attached to the outer surface of the material. According to the different shapes of the materials, the surfaces are uneven, and the multiple rubber strips 454 compress the springs 456 respectively and slide stably in the limit groove 456 through the limit blocks 457, so that the rubber strips 454 move stably when moving to the surface of the material. By individually adhering to the pressing materials, the multiple rubber strips 454 can effectively make it possible to fit and clamp irregular material surfaces in multiple places, effectively improving the stability of clamping, and facilitating the clamping of materials of different shapes. The clamping plate 451 is an L-shaped plate, which is convenient for supporting the lower end of the material to prevent it from falling during transportation, thereby effectively improving the lifting stability.

[0031] The lower end of the fixed plate 1 is equipped with a clamping mechanism 5 connected to the clamping assembly 45. The clamping mechanism 5 includes four first connecting members 51 installed at the lower end of the fixed plate 1. The first connecting member 51 is movably connected to the hydraulic cylinder 52 through a pin shaft. The output end of the hydraulic cylinder 52 is connected to the telescopic rod 53 through a connecting plate. One end of the telescopic rod 53 is movably connected to the second connecting member 54 through a pin shaft. One side of the second connecting member 54 is connected to the first piston rod 59. The outer side of the first piston rod 59 is sleeved with the first piston cylinder 58. The first piston cylinder 58 is installed on the outer side of the clamping plate 451. The outer side of the first piston cylinder 58 is connected to the second piston rod 59 through an oil pipe 510. Second piston cylinder 512, the second piston cylinder 512 is installed on the outside of the splint 451 through the third support plate 511, the second piston cylinder 512 is connected to the fixed plate 514 through the second piston rod 513, the upper end of the fixed plate 514 is connected to three plug blocks 516, one side of the splint 451 is installed with a first support plate 452, the lower end of the first support plate 452 is installed with three rectangular grooves 453 plugged with the plug blocks 516, the outer side of the splint 451 is connected with the second support plate 55, the upper end of the second support plate 55 is symmetrically provided with sliding grooves 57, and the outer side of the second connecting member 54 is installed with two sliding bars 56 slidingly connected with it.

[0032] When the clamping plate 451 moves, the end of the hydraulic cylinder 52 that is rotatably connected to the first connecting member 51 is tilted and rotated, and at the same time, the output end of the telescopic rod 53 is also extended and moved. When the clamping plate 451 completes the material clamping operation, by turning on the hydraulic cylinder 52 switch, the output end of the hydraulic cylinder 52 drives the tail of the telescopic rod 53 to move, and then the output end of the telescopic rod 53 is compressed to the inner cavity of the telescopic rod 53, while the output end of the hydraulic cylinder 52 continues to extend, and then drives the second connecting member 54 to push the first piston rod 59 through the telescopic rod 53, and the second connecting member 54 slides stably in the slide groove 57 at the upper end of the second support plate 55 through the slide bar 56, and the first piston cylinder 58, the second piston cylinder 512 and the oil pipe 580 are all filled with hydraulic oil, and then the first piston rod 59 pushes the hydraulic oil in the inner cavity of the first piston cylinder 58 to the oil pipe 510, and then More hydraulic oil is transported to the second piston cylinder 512 through the oil pipe 510, so that the hydraulic oil in the inner cavity of the second piston cylinder 512 pushes the fixed plate 514 and the plug block 516 at its upper end, and then the plug block 516 is respectively inserted into the rectangular groove 453. At this time, the telescopic rod 53 and the movably connected second connecting member 54 are driven by the output end of the hydraulic cylinder 52 to tightly press against the first piston rod 59, that is, the first piston cylinder 58 and the splint 451 outside the first piston rod 59 have a clamping effect, which facilitates more stable clamping of the splint 451, and the plug block 516 is inserted into the rectangular groove 453 at the lower end of the first support plate 452 outside the splint 451, further limiting and fixing the splint 451, further improving the firmness of the splint 571 in clamping the material, effectively improving the clamping and fixing effect, and facilitating more stable lifting and transportation.

[0033] Working principle: When the utility model is in use, the control connection is achieved through the external control switch servo motor 41 and the hydraulic cylinder 52. When in use, the output end of the servo motor 41 drives the second screw rod 42, which is a forward and reverse bidirectional screw rod, to rotate, and the two second threaded blocks 44 on the outside of the second screw rod 42 drive the clamping plate 451 to move toward the material to be hoisted, and the multiple rubber strips 454 on one side of the clamping plate 451 are tightly attached to the outer surface of the material, and the multiple rubber strips 454 are individually attached to the material, which effectively enables the irregular surface of the material to be attached in multiple places. The clamping plate 451 is an L-shaped plate, which is convenient for supporting the lower end of the material to prevent it from falling during transportation, effectively improving the stability of the lifting. At the same time, the end of the hydraulic cylinder 52 that is rotatably connected to the first connecting member 51 is tilted and rotated, and at the same time, the output end of the telescopic rod 53 is also extended and moved. When the clamping operation of the material is completed by the clamping plate 451, the output end of the hydraulic cylinder 52 drives the tail of the telescopic rod 53 to move by turning on the switch of the hydraulic cylinder 52, and then the telescopic rod 53 is lifted and lowered. The output end of the hydraulic cylinder 52 is compressed into the inner cavity of the telescopic rod 53, while the output end of the hydraulic cylinder 52 continues to extend, thereby driving the second connecting member 54 to push the first piston rod 59 through the telescopic rod 53, and then the first piston rod 59 pushes the hydraulic oil in the inner cavity of the first piston cylinder 58 to the oil pipe 510, and then more hydraulic oil is delivered to the second piston cylinder 512 through the oil pipe 510, so that the hydraulic oil in the inner cavity of the second piston cylinder 512 pushes the fixed plate 514 and the insert block 516 at its upper end, and then the insert block 516 is respectively inserted into the rectangular groove 453. At this time, the output of the hydraulic cylinder 52 The output end drives the telescopic rod 53 and the movably connected second connecting piece 54 to press tightly against the first piston rod 59, that is, it has a clamping effect on the first piston cylinder 58 and the clamping plate 451 on the outside of the first piston rod 59, which facilitates the clamping of the clamping plate 451 to be more stable, and the insert block 516 is inserted into the rectangular groove 453 at the lower end of the first support plate 452 on the outside of the clamping plate 451, which further has a limiting and fixing effect on the clamping plate 451, further improving the clamping firmness of the clamping plate 571 on the material, effectively improving the clamping and fixing effect, and facilitating more stable lifting and transportation.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A hoisting device for bridge construction, characterized in that: It comprises a fixed plate (1), two steel ropes (3) are installed on the upper end of the fixed plate (1), long grooves (2) are symmetrically arranged on the upper end of the fixed plate (1), and a clamping mechanism (4) is installed on the upper end of the fixed plate (1); The clamping mechanism (4) includes two servo motors (41) installed at the upper end of the fixed plate (1), the output ends of the servo motors (41) are connected to screw rods (42), the outer sides of the screw rods (42) are symmetrically screwed with threaded blocks (44), the lower ends of the threaded blocks (44) are connected to clamping components (45), the lower ends of the clamping components (45) pass through the long slots (2) and extend to the bottom thereof, and the lower end of the fixed plate (1) is equipped with a clamping mechanism (5) connected to the clamping components (45) around the periphery.

2. A hoisting device for bridge construction according to claim 1, characterized in that: The upper end of the fixing plate (1) is symmetrically mounted with bearing seats (43), and the two bearing seats (43) are respectively rotatably connected to the screw rods (42), and the screw rods (42) are forward and reverse bidirectional screw rods.

3. A hoisting device for bridge construction according to claim 1, characterized in that: The clamping assembly (45) comprises a clamping plate (451), one side of the clamping plate (451) is provided with a groove, the inner cavity of the groove is equidistantly connected to springs (455), and the other end of each spring (455) is connected to a rubber strip (454).

4. A hoisting device for bridge construction according to claim 3, characterized in that: Limiting grooves (456) are equidistantly provided on both sides of the inner cavity of the groove, and limiting blocks (457) are integrally designed on both sides of the rubber strip (454) and are in sliding contact with the rubber strip (454).

5. A hoisting device for bridge construction according to claim 3, characterized in that: The clamping mechanism (5) includes four first connecting members (51) installed at the lower end of the fixed plate (1), the first connecting member (51) is movably connected to the hydraulic cylinder (52) through a pin shaft, the output end of the hydraulic cylinder (52) is connected to the telescopic rod (53) through a connecting plate, one end of the telescopic rod (53) is movably connected to the second connecting member (54) through a pin shaft, one side of the second connecting member (54) is connected to the first piston rod (59), the outer side of the first piston rod (59) is sleeved with the first piston cylinder (58), the first piston cylinder (58) is installed on the outer side of the clamping plate (451), and the first The outer side of a piston cylinder (58) is connected to a second piston cylinder (512) via an oil pipe (510); the second piston cylinder (512) is installed on the outer side of a clamping plate (451) via a third support plate (511); the second piston cylinder (512) is connected to a fixed plate (514) via a second piston rod (513); the upper end of the fixed plate (514) is connected to three plug blocks (516); a first support plate (452) is installed on one side of the clamping plate (451); and the lower end of the first support plate (452) is installed with three rectangular slots (453) plugged into the plug blocks (516).

6. A hoisting device for bridge construction according to claim 5, characterized in that: The outer side of the clamping plate (451) is connected to a second support plate (55), the upper end of the second support plate (55) is symmetrically provided with a sliding groove (57), and the outer side of the second connecting member (54) is equipped with two sliding strips (56) that are slidably connected thereto.

Images